JP2016081782A - Lighting device and light emitting unit for lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve light emitting performance in a lighting device.SOLUTION: A light emitting unit of a lighting device has a light emitting element, a light emitting element substrate on which the light emitting element is mounted, a supporting member for supporting the light emitting element substrate, and a main cover portion covering the light emitting element and transmitting the light emitted from the light emitting element. The main cover portion has a bottom surface portion, and an inclined portion thinner than the bottom surface portion and inclined to the bottom surface portion. Further, the translucent cover includes a diffusion material uniformly dispersed. Thus, the main cover portion includes a light diffusing portion formed on the bottom surface of the main cover portion and diffusing the light, and a light straightening portion inclined to the light diffusing portion and having light straightening performance higher than the light diffusing portion.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a lighting device and a light emitting unit for the lighting device.

2. Description of the Related Art Conventionally, lighting devices in which a light emitter such as a fluorescent lamp is attached to a fixture body of a lighting fixture and the fixture body is attached to a mounting surface such as a ceiling or a wall are widely used. In recent years, light emitting diodes (LEDs) that consume less power and have superior durability compared to conventionally used incandescent bulbs and fluorescent lamps are often used as light emitting elements.
For this reason, many lighting devices for mounting on a ceiling or wall using LEDs as light emitting elements have been proposed. For example, Patent Document 1 below discloses an illumination device that causes a light emitting unit to emit light by attaching a light emitting unit including a light emitting element to a fixture main body attached to a ceiling or the like and supplying power to the light emitting unit. Has been.

JP 2014-0778423 A

As one configuration example of the light emitting unit of such a long illuminating device, for example, in the above-mentioned cited document 1, a light source 2 attached to a chassis 1 (hereinafter referred to as a support member) is attached. Then, a cover member 3 (hereinafter referred to as a main cover portion) that covers the light source 2 and a lid 35 (hereinafter referred to as an end cover) attached to the openings 32 at both ends in the longitudinal direction of the cover member 3 are attached to the chassis 1. .
However, for example, if the main cover portion transmits light from the light emitting element evenly over the entire surface of the main cover portion, the brightness of the room may not be uniform, and the light emitting property of the entire lighting device may be lowered.

  This invention is made | formed in view of such a situation, Comprising: It aims at provision of the illuminating device which improved luminous property, and the light-emitting unit for illuminating devices.

In order to solve the above-described problem, an illumination device according to one embodiment of the present invention includes a light-emitting unit and a fixture main body to which the light-emitting unit is attached. The light-emitting unit includes a light-emitting element and the light-emitting element. A light-emitting element substrate to be mounted; a support member that supports the light-emitting element substrate; and a main cover part that covers the light-emitting element and transmits light emitted from the light-emitting element. And a bottom surface portion, and an inclined portion that is formed thinner than the bottom surface portion and is inclined with respect to the bottom surface portion.
Moreover, in order to solve the said subject, the illuminating device which concerns on the other aspect of this invention has a light emitting unit and the instrument main body to which the said light emitting unit is attached, The said light emitting unit is a light emitting element, The said A light emitting element substrate on which the light emitting element is mounted; a support member that supports the light emitting element substrate; and a main cover that covers the light emitting element and transmits light emitted from the light emitting element. The cover part is a light diffusing part for diffusing light formed on the bottom surface of the main cover part, and a light straight traveling having a light straightness higher than that of the light diffusing part, which is inclined with respect to the light diffusing part. And an engaging portion that extends from the linearly advancing portion and engages with the support member.

  The light emitting unit for lighting device according to one embodiment of the present invention covers a light emitting element, a light emitting element substrate on which the light emitting element is mounted, a support member that supports the light emitting element substrate, and the light emitting element. A main cover portion that transmits light emitted from the light emitting element, the main cover portion having a bottom surface portion, and an inclined portion that is formed thinner than the bottom surface portion and is inclined with respect to the bottom surface portion. It is characterized by having.

  ADVANTAGE OF THE INVENTION According to this invention, the illuminating device with high luminous property and the light emission unit for illuminating devices can be obtained.

It is a perspective view explaining the external appearance of the illuminating device which concerns on one Embodiment of this invention. It is an orthographic projection explaining the external appearance of the illuminating device which concerns on one Embodiment of this invention. It is a perspective view explaining the external appearance from the light emission unit side of the illuminating device which concerns on one Embodiment of this invention. It is sectional drawing explaining the structure of the illuminating device which concerns on one Embodiment of this invention. It is a perspective view explaining the external appearance of the fixture main body of the illuminating device which concerns on one Embodiment of this invention. It is a figure explaining the position control member which controls the position of the light emission unit provided in the illuminating device which concerns on one Embodiment of this invention. It is a perspective view explaining the external appearance of the light emission unit of the illuminating device which concerns on one Embodiment of this invention. It is sectional drawing of the light emission unit which concerns on one Embodiment of this invention. It is a disassembled perspective view which shows the structure of the light emission unit which concerns on one Embodiment of this invention. It is a disassembled perspective view which shows the engaging part of the translucent cover and support member with which the light emission unit which concerns on one Embodiment of this invention is provided. It is a side view which shows the main cover part of the translucent cover with which the light emission unit which concerns on one Embodiment of this invention is provided, and the engaging part of a supporting member. It is sectional drawing of the light emission unit which concerns on other embodiment of this invention. It is sectional drawing which shows the other structural example of the light emission unit which concerns on other embodiment of this invention. It is a side view which shows the engaging part of the end cover and support member of a translucent cover with which the other structural example of the light emission unit which concerns on other embodiment of this invention is provided. It is an orthographic projection explaining the structural example of the end cover which concerns on one Embodiment of this invention. It is a perspective view which shows the engaging part of the end cover and support member of a translucent cover with which the light emission unit which concerns on other embodiment of this invention is provided. It is a top view explaining the example of composition of the substrate group concerning one embodiment of the present invention. It is a top view explaining the other structural example of the board | substrate group which concerns on one Embodiment of this invention. It is a section perspective view explaining an example of composition of wiring connection concerning one embodiment of the present invention. It is a perspective view explaining an example of composition of a support member concerning one embodiment of the present invention. It is a perspective view explaining arrangement | positioning of the board | substrate fixing member 25 which concerns on one Embodiment of this invention. It is an orthographic projection explaining the structural example of the board | substrate fixing member 25 which concerns on one Embodiment of this invention. It is an orthographic projection explaining the other structural example of the board | substrate fixing member 25 which concerns on one Embodiment of this invention. It is a perspective view explaining the state which attached the reflective component which concerns on one Embodiment of this invention to the board | substrate fixing member 25. FIG. It is sectional drawing explaining the state which attached the reflective component which concerns on one Embodiment of this invention to the board | substrate fixing member 25. FIG. It is a top view explaining the example of composition of the substrate group concerning one embodiment of the present invention. It is a disassembled perspective view explaining the structure of the power supply part which concerns on one Embodiment of this invention. It is sectional drawing explaining the protection mechanism which protects the wiring which concerns on one Embodiment of this invention.

  Hereinafter, a lighting device according to an embodiment of the present invention will be described. In the following embodiments, when the lighting device is attached to the ceiling, the direction facing the ceiling may be described as the upward direction of the lighting device, and the floor direction may be described as the downward direction of the lighting device. Further, in the figure, when the lighting device is attached to the ceiling, the vertical upward direction (ceiling direction) may be the Z direction and the floor direction may be the -Z direction. At this time, one direction in the longitudinal direction of the long illuminating device is the X direction, the other direction is the -X direction, one direction in the width direction of the long illuminating device is the Y direction, and the other direction is the -Y direction. There is a case.

[Whole structure of lighting device]
FIG. 1 is a perspective view showing an appearance of a lighting device 1 according to an embodiment of the present invention.
2A and 2B are orthographic views showing the appearance of the lighting device 1. FIG. 2A is a top view of the lighting device 1, FIG. 2B is a side view of the lighting device 1, and FIG. FIG. 2D is a front view of the lighting device 1, and FIG. 2E is a rear view of the lighting device 1. FIG. 2B is a right side view of the lighting device 1, and the left side view of the lighting device 1 is substantially the same as the right side view and is not shown.
FIG. 3 is a perspective view showing an external appearance of the lighting device 1 from the light emitting unit 20 side.
FIG. 4 is a cross-sectional view showing the configuration of the lighting device 1.

The illuminating device 1 includes, for example, an illuminating device main body (hereinafter referred to as an “apparatus main body”) 10 that is attached to a surface to be attached such as a ceiling or a wall, and a light emitting element 21 and is attached to the luminaire main body 10. A light emitting unit (hereinafter referred to as a light emitting unit) 20.
The light emitting unit 20 includes a light transmissive cover 22 that covers a light emitting element 21 such as an LED and a substrate group 23 on which the light emitting element 21 is mounted.
The instrument main body 10 includes a light emitting unit mounting recess 111 to which the light emitting unit 20 is mounted so that the translucent cover 22 of the light emitting unit 20 enters. The light emitting unit mounting recess 111 of the instrument body 10 extends toward the opening end, and the light emitting unit 20 is in contact with the inner wall surface of the light emitting unit mounting recess 111.

[Equipment body]
Hereinafter, the configuration of the instrument body 10 will be described.
FIG. 5 is a perspective view showing an external appearance of the instrument main body 10, FIG. 5A is a perspective view showing an external appearance of the instrument main body 10 from above, and FIG. 5B is a perspective view of the instrument main body 10. It is a perspective view which shows the external appearance from a downward direction.
FIG. 6 is a view showing a position restricting member that is provided in the instrument body 10 and restricts the position of the light emitting unit 20 to a predetermined position.
As shown in FIGS. 5 and 6, the instrument body 10 includes an attachment member 11, side plates 12 (12 a and 12 b), a spring portion 13 (13 a and 13 b), a terminal block 14, and a suspension bolt hole 15. And a power supply cable hole 16.

Hereinafter, each part of the instrument body 10 will be described in detail.
(Mounting member)
The mounting member 11 is a light emitting unit mounting concave portion 111 for mounting the light emitting unit 20, a side edge portion 112 that is formed with the light emitting unit mounting concave portion 111 interposed therebetween and extends long in one direction, and a bottom portion of the light emitting unit mounting concave portion 111. A bottom plate portion 114. That is, the attachment member 11 is formed in a long shape.
The light emitting unit mounting recess 111 is opened so that the light transmissive cover 22 of the light emitting unit 20 including the light emitting element 21 and the light transmissive cover 22 covering the light emitting element 21 enters by bending a material such as a metal plate. Is formed. The light emitting unit mounting recess 111 extends toward the opening edge of the light emitting unit mounting recess 111.

The side edge portion 112 includes, for example, a first side edge portion 112a and a second side edge portion 112b shown in FIG. The side edge portion 112 has a protruding shape that protrudes toward the light emitting unit 20. Note that it is only necessary that at least one of the first side edge 112a and the second side edge 112b has a protruding shape that protrudes toward the light emitting unit 20 (that is, toward the −Z direction in FIG. 5).
The bottom plate portion 114 is opposed to a mounting surface such as a ceiling or a wall, and the suspension bolt hole 15 for mounting the lighting device 1 on the mounting surface and the power supply cable 40 are drawn into the lighting device 1. Power supply cable hole 16 and the like.

(Side plate)
The side plate 12 is attached to the attachment member 11 so as to cover both ends of the attachment member 11. As shown in FIG. 5B, the first side plate 12 a is attached so as to cover one end of the attachment member 11. The second side plate 12 b is attached so as to cover the other end of the attachment member 11. By attaching the first side plate 12 a and the second side plate 12 b to both ends of the attachment member 11, a light emitting unit attachment recess 111 for attaching the light emitting unit 20 is formed.
That is, the “light emitting unit mounting recess 111” indicates a space surrounded by the first side edge 112a and the second side edge 112b, and the first side plate 12a and the second side plate 12b. Moreover, an opening is formed by attaching the first side plate 12 a and the second side plate 12 b to the attachment member 11.

The side plate 12 is formed by, for example, bending a material such as a metal plate in the same manner as the attachment member 11. In this case, the heat resistance of the side plate 12 is high, and the heat of the light emitting unit 20 can be dissipated through the side plate 12 or the attachment member 11 to which the side plate 12 is attached.
The side plate 12 may be formed of a resin material. The side plate 12 is formed, for example, by injection molding a resin material. In this case, the moldability of the side plate 12 is improved, and an engagement portion with the attachment member 11 is easily formed.

Further, the side plate 12 may include a functional unit that controls light emission of the light emitting element 21. The side plate 12 may include, for example, at least one of a light receiving unit, a wireless receiving unit, a sensor, or a switch unit as a functional unit that controls light emission of the light emitting element 21.
An example of the light receiving unit is an infrared light receiving unit. The infrared light receiving unit is a light receiving unit that receives infrared light from an infrared light emitting unit of a remote controller, for example. The side plate 12 controls the light emission of the light emitting unit 20 based on the infrared signal amplification circuit that amplifies the infrared signal detected by the infrared light receiving unit or the infrared signal detected by the infrared light receiving unit, for example, on the side facing the mounting member 11. A control unit is provided.

  In addition to the light receiving unit such as the infrared light receiving unit, the wireless receiving unit includes, for example, a wireless LAN (Local Area Network) or Bluetooth (registered trademark) receiving unit that receives communication from the wireless transmission unit of the remote controller. It is done. Examples of the sensor include human sensors using infrared rays, ultrasonic waves, visible light, and the like. An example of the switch unit is a pull switch to which a drawstring is attached.

When the side plate 12 is made of a resin material, the moldability is improved, so that the functional part can be easily added.
In addition, since the side plate 12 is provided with the functional unit, it is not necessary to provide the light emitting unit 20 with a functional unit such as a light receiving unit, a wireless reception unit, a sensor, or a switch unit. There is nothing to do. And since each function part is provided in the instrument main body 10 side, even if the function added to the illuminating device 1 differs, the light emission unit 20 can be made common.

Unlike the case where a functional unit is added to the light emitting unit 20, when replacing the light emitting unit 20 which is a consumable, only the light emitting unit 20 is replaced and the function added to the lighting device 1 is to be changed, the functional unit is changed. It is only necessary to replace the side plate 12 provided.
For this reason, for example, it is easy to add a function for turning on / off the lighting device 1 or to change the lighting device 1 provided with a pull switch to a lighting device 1 having a function of turning on / off by a remote controller. Become.

  As shown in FIGS. 6A and 6B, the instrument body 10 may include a position regulating member 113 that regulates the mounting position of the light emitting unit 20. The position regulating member 113 is disposed in the light emitting unit mounting recess 111. The position regulating member 113 comes into contact with the light emitting unit 20 when the light emitting unit 20 is attached to the instrument body 10. Thereby, the light emitting unit 20 is positioned at a predetermined position in the light emitting unit mounting recess 111.

  For example, as shown in FIG. 6A, the position regulating member 113 may be provided so as to protrude from the inner wall of the light emitting unit mounting recess 111 into the light emitting unit mounting recess 111. At this time, the position restricting member 113 is made of a metal material or the like fixed to the inner wall of the light emitting unit mounting recess 111, and is formed as a separate member from the light emitting unit mounting recess 111. Further, the position regulating member 113 may be formed by bending a metal plate of the mounting member 11 so as to be formed integrally with the light emitting unit mounting recess 111 and the side edge portion 112. Specifically, a notch is formed in a part of the inner wall of the light emitting unit mounting recess 111, and the metal plate is bent so that the notch protrudes into the light emitting unit mounting recess 111. The position restricting member 113 that is a U-shaped protrusion can be formed.

  For example, as illustrated in FIG. 6B, the position regulating member 113 may be disposed on the side plate 12 of the light emitting unit mounting recess 111. At this time, the position restricting member 113 is provided so as to protrude from the side plate 12 of the light emitting unit mounting recess 111. Specifically, when the light emitting unit 20 is attached to the instrument main body 10, a part of the side plate 12 is partly disposed on the light emitting unit mounting recess 111 in a facing region (region indicated by a dotted line in FIG. 6B) facing the light emitting unit 20. The position restricting member 113 is formed by bending toward the front.

(Spring part)
As shown in FIG. 5B, the spring portion 13 is fixed to the bottom plate portion 114 of the mounting member 11, for example. The spring portion 13 is used to maintain a state in which the light emitting unit 20 is attached to the light emitting unit mounting recess 111 of the instrument body 10 by engaging with a spring receiving portion 27 of the light emitting unit 20 described later. Specifically, the first spring portion 13 a is engaged with the first spring receiving portion 27 a of the light emitting unit 20, and the second spring portion 13 b is engaged with the second spring receiving portion 27 b of the light emitting unit 20. In other words, the first spring receiving portion 27a and the second spring receiving portion 27b, and the first spring portion 13a and the second spring portion 13b serve as an attachment state maintaining portion that maintains the state where the light emitting unit 20 is attached to the light emitting unit attaching recess 111. Function.

(Terminal block)
A power supply cable 40 described later is connected to the terminal block 14. Specifically, the terminal block 14 is connected to a power supply cable 40 that is led out from a mounting surface such as a ceiling or a wall and electrically connects to a power supply unit 28 described later. The terminal block 14 is attached to the attachment member 11 with screws or the like, for example.

(Hanging bolt hole)
The suspension bolt hole 15 is provided for attaching the instrument main body 10 to a surface to be attached such as a ceiling or a wall by the suspension bolt 30 shown in FIG.
(Power supply cable hole)
The power supply cable hole 16 is provided to draw the power supply cable 40 led out from the mounting surface such as the ceiling or wall into the light emitting unit mounting recess 111 of the instrument body 10.

[Light emitting unit]
Hereinafter, the configuration of the light emitting unit 20 will be described.
FIG. 7 is a perspective view showing the external appearance of the light emitting unit 20 from above.
FIG. 8 is a cross-sectional view showing the AA ′ cross section of the light emitting unit 20 shown in FIG.
FIG. 9 is an exploded perspective view showing the configuration of the light emitting unit 20.
As shown in FIGS. 7, 8, and 9, the light emitting unit 20 includes a light emitting element 21, a translucent cover 22 (a main cover portion 221, a first end cover 222, a second end cover 223), and a substrate group. 23, a support member 24, a board fixing member 25 (25a to 25n), a screw 26, a spring receiving portion 27 (27a and 27b), a power source portion 28, and a reflecting member 29 (first reflecting component 29a, first 2 reflective component 29b and 3rd reflective component 29c). In FIG. 9, only the screws 26 for fixing the substrate fixing member 25a are denoted by reference numerals, and the screws for fixing the substrate fixing members 25n to the substrate fixing members 25b are omitted.

Hereinafter, each part of the light emitting unit 20 will be described in detail.
(Translucent cover)
The translucent cover 22 covers the light emitting element 21 and has a shape that enters the instrument body 10 when the light emitting unit 20 is attached to the instrument body 10 (see FIG. 4). The translucent cover 22 has a function of diffusing light emitted from the light emitting element 21.
As shown in FIG. 9, the translucent cover 22 includes a main cover portion 221 that covers the light emitting element 21, a first end cover 222, and a second end cover 223. The first end cover 222 is attached so as to cover one end of the main cover portion 221. Similarly, the second end cover 223 is attached so as to cover the other end of the main cover portion 221.

As shown in FIG. 4, the light emitting unit 20 is attached such that a part of the translucent cover 22 enters the opening of the instrument body 10. At this time, the light emitting unit 20 is attached to the light emitting unit mounting recess 111 in a state where a part of the translucent cover 22 is in contact with the inner wall surface of the light emitting unit mounting recess 111 of the instrument body 10.
Thereby, even if it is a case where the light emission unit 20 bends, it becomes difficult to produce the appearance defect of an illuminating device. This is because, when the light emitting unit 20 is bent, only the translucent cover 22 that has entered the light emitting unit mounting recess 111 is exposed, and no gap is generated between the instrument body 10 and the light emitting unit 20. .

FIG. 10 is an exploded perspective view illustrating in detail the engaging portions of the main cover portion 221 and the support member 24 and the first end cover 222 and the support member 24.
FIGS. 10A and 10B are views for explaining the engagement state of the main cover portion 221, the first end cover 222, and the support member 24.
FIG. 11 is a view for explaining the engaged state between the support member 24 and the main cover portion 221, and is a side view schematically showing one side surface of the support member 24 and the first end cover 222.

(Main cover)
As shown in FIG. 8, the main cover portion 221 includes a bottom surface portion 224 formed in a flat shape, and an inclined portion 225 that is formed thinner than the bottom surface portion 224 and is inclined with respect to the bottom surface portion 224. ing. Further, the main cover portion 221 has an engaging portion 226 that extends from the inclined portion 225 and engages with the support member 24.

  The main cover portion 221 is made of a resin material and includes a diffusing material that is uniformly dispersed. The bottom surface portion 224 is thicker than the inclined portion 225, and the total amount of the diffusing material in the light transmission direction is larger than that of the inclined portion 225. For this reason, the bottom surface portion 224 is formed with higher light diffusibility than the inclined portion 225. Further, the inclined portion 225 is thinner than the bottom surface portion 224, and the total amount of the diffusing material in the light transmission direction is smaller than that of the bottom surface portion 224. For this reason, the inclined portion 225 is formed with higher light straightness than the bottom surface portion 224.

That is, the main cover part 221 includes a bottom surface part 224 that is a light diffusion part that diffuses light and is formed on the bottom surface of the main cover part 221, and a light diffusion part that is inclined with respect to the light diffusion part. In addition, it has an inclined portion 225 that is a light straight-advancing portion that has a high light straight-advancing property, and an engaging portion 226 that extends from the light straight-ahead portion and engages with the support member 24.
Thereby, for example, the light transmitted through the bottom surface part 224 of the translucent cover 22 has an effect of diffusing the strong light of the light emitting element made of LED or the like and keeping the whole room bright. Further, since the bottom surface portion 224 has high light diffusibility, it is difficult to recognize the boundary between the light emitting portion of the light emitting element 21 and the portion other than the light emitting portion of the light emitting element 21 immediately below the lighting device 1, and the light emitting property of the lighting device 1. Becomes uniform.

  In addition, the light transmitted through the inclined portion 225 has an effect of keeping a bright space other than just below the lighting device 1 that tends to be dark because the strong light of the light emitting element is difficult to diffuse. For this reason, in the illuminating device 1, the whole room | chamber interior can be kept uniformly bright with the light which permeate | transmitted the bottom face part 224, and the light which permeate | transmitted the inclination part 225. FIG.

  As shown in FIG. 11, the main cover portion 221 has a hole 228 to be fixed for fixing the main cover portion 221 to the support member 24. The fixing hole 228 is provided at a position facing the fixing hole 241 provided in the support member 24 of the main cover 221. The support member 24 and the main cover part 221 are fixed to each other by inserting a main cover part fixing part such as a rivet (not shown) into the fixing hole part 241 and the fixing hole part 228 facing each other. In this case, for example, by passing a rivet from the main cover portion 221 side through the fixing hole portion 241 and the fixing hole portion 228 which are positioned to overlap with each other, The support member 24 is fixed.

FIG. 11 shows a fixing hole 241 provided in the support member 24 and a fixed hole 228 provided in the main cover part 221. FIG. 11 illustrates a case where at least two fixing portions of the support member 24 and the main cover portion 221 are provided on at least one of the long sides of the support member 24.
The main cover portion 221 formed of a resin material may expand and deform due to heat. The deformation of the main cover portion 221 is likely to occur when at least two fixing portions are provided on at least one of the long sides of the support member 24. This is because the expansion rate of the main cover part 221 due to heat is larger than the expansion rate of the support member 24. That is, when there are two or more places where the support member 24 and the main cover portion 221 are fixed, the main cover portion 221 is fixed against the increase in the distance between the fixing hole portions 241 of the support member 24 due to expansion. The amount of increase in the distance between the hole portions 228 is increased, and the main cover portion 221 is deformed.

The fixed hole portions 228 (228a, 228b, 228c) of the main cover portion 221 are respectively positioned at positions facing the fixing hole portions 241 (241a, 241b, 241c, details will be described later) provided in the support member 24. Provided.
At this time, the fixing hole portions 228 (228a, 228b, 228c) of the main cover portion 221 are fixed to the fixing hole portions 228 (228a, 228b, 228c) provided in the support member 24. 241 (241a, 241b, 241c) are formed in different sizes.

Thereby, even if it is a case where the main cover part 221 formed with a resin material expand | swells with a heat | fever, a deformation | transformation of the main cover part 221 is suppressed. Moreover, since the deformation | transformation of the main cover part 221 is suppressed, the uniformity of the light emission of the illuminating device 1 is not impaired.
Here, when the main cover portion fixing component is fixed to the support member 24 by the main cover portion fixing component, the distance between the main cover portion fixing components does not change because the main cover portion fixing component is fixed to the support member. For this reason, if the dimension (diameter of the hole) to be fixed is substantially equal to the dimension (diameter) of the main cover part fixing part, the main cover part 221 in the region sandwiched between the main cover part fixing parts. When the swell expands, the main cover part 221 is deformed like a wave between the main cover part fixing parts.

  On the other hand, in the lighting device 1 according to the present application, the fixing hole portion 228 provided in the main cover portion 221 is formed larger than the fixing hole portion 241 of the support member 24. For this reason, the diameter of the shaft portion of the main cover portion fixing component such as a rivet is smaller than the dimension of the hole portion 228 to be fixed. For this reason, even if the main cover fixing component is inserted into the fixed hole 228, a clearance is generated between the inner wall of the fixed hole 228 and the surface of the main cover fixing component. For this reason, even if the main cover part 221 expands, the position of the main cover part fixing component only moves within the hole 228 to be fixed, and the main cover part 221 is hardly deformed.

  One of the fixing hole portion 241 of the opposing support member 24 and the fixing hole portion 228 of the main cover portion 221 is formed in a round shape, and the fixing hole portion 241 of the opposing support member 24 and the covered portion of the main cover portion 221 are covered. The other of the fixing hole portions 228 may be formed in a long hole shape (for example, the fixing hole portion 241a and the fixed hole portion 228a). As shown in FIG. 11, the fixing hole 228 (228a and 228c) of the main cover 221 is formed when the fixing hole 241 (241a and 241c) of the support member 24 is formed in a round shape. It is formed in a long hole shape. The “elongate hole shape” indicates an oval shape, a long round shape, a rectangular shape, or the like. Further, the fixing hole 228 of the main cover 221 is formed in a round shape when the fixing hole 241 of the support member 24 is formed in a long hole shape.

  The fixed hole 228 is preferably formed in a long hole shape. When the fixing hole portion 228 of the main cover portion 221 has a long hole shape and the fixing hole portion 241 of the support member 24 has a round shape, the deformation of the main cover portion 221 is more effectively suppressed.

In addition, one of the fixed hole portions 228 is formed in the same size as the opposing fixing hole portion 241, and the remaining fixed hole portion 228 is different in size from the opposing fixing hole portion 241. It may be formed. For example, as shown in FIG. 11, the fixing hole 228b is formed in the same size as the opposing fixing hole 241b, and the fixing holes 228a and 228c are opposed fixing holes 241a and 241c. And are formed in different sizes.
Thereby, for example, the portion where the main cover fixing component is inserted and fixed through the fixing hole 228b of the main cover 221 and the fixing hole 241b of the support member 24 is completely fixed.

  In addition, the fixed part by inserting the main cover fixing part through the opposing fixing hole part 228a and fixing hole part 241a and the fixing hole part 228c and fixing hole part 241c, respectively, is completely fixed. Not. For this reason, when the main cover part 221 expands, the main cover part 221 expands toward the outside of the lighting device 1 starting from the fixing portions of the fixed hole part 228b and the fixing hole part 241b.

Moreover, it is preferable that the to-be-fixed hole 228 formed in the same size as the opposing fixing hole 241 is formed in a round shape. That is, it is preferable that both the fixing hole 228b and the fixing hole 241b facing each other are formed in a round shape. As a result, the fixing hole 228b and the fixing hole 241b are securely fixed by the main cover fixing component.
The fixed hole portion 228 having a round shape is preferably provided at the center of the long side of the main cover portion 221 (for example, the fixing hole portion 241b and the fixed hole portion 228b). Since the support member 24 and the main cover portion 221 are completely fixed at the center of the lighting device 1, when the main cover portion 221 expands, the lighting device 1 expands evenly at both ends, and the entire lighting device 1. As a result, the design for expansion of the main cover portion 221 is facilitated.

  As shown in FIGS. 12 and 13, the main cover portion 221 is formed with protruding portions 229 (a lower protruding portion 229 a and an upper protruding portion 229 b) provided so as to protrude from the inner wall surface of the main cover portion 221. . The lower protrusion 229a and the upper protrusion 229b adjacent to the lower protrusion 229a hold the lower part and the upper part of the support member 24, respectively. The upper protruding portion 229b is provided in the vicinity of the end portion (long side 227) of the main cover portion 221. The lower protruding portion 229a is provided adjacent to the side of the upper protruding portion 229b that is close to the light irradiation direction (floor direction) of the lighting device 1.

  At this time, as a first example shown in FIG. 12, the main cover portion 221 is provided so as to protrude from the inner wall surface of the main cover portion 221, and a lower protrusion portion 229a that supports the lower portion of the support member 24, and a lower protrusion portion 229a. And an upper projecting portion 229b that is provided so as to project from the inner wall surface, supports the upper portion of the support member 24, and is shorter than the lower projecting portion 229a.

Thereby, the support member 24 can be easily attached to the main cover portion 221. That is, since the upper protruding portion 229b is shorter than the lower protruding portion 229a, the end portion of the long side 227 facing the support member 24 of the main cover portion 221 is spread outward, and the support member 24 is held between the protrusion portions 229. Thus, the main cover portion 221 can be attached to the support member 24.
In this case, as compared with the case where the support member 24 is slid from the end portion of the main cover portion 221 so that the support member 24 is held between the protruding portions 229, the mounting operation is performed in a small work space and in a short time. be able to.

  Note that the lower protruding portion 229a and the upper protruding portion 229b shorter than the lower protruding portion 229a may be provided only on at least one of the long sides 227 facing the support member 24 of the main cover portion 221. That is, a lower protrusion 229a and an upper protrusion 229b shorter than the lower protrusion 229a are formed on one of the long sides 227, and the lower protrusion 229a and the upper of the same length are formed on the other of the long sides 227. The protrusion part 229b may be provided.

  In this case, the support member 24 is held between the lower protrusion 229a and the upper protrusion 229b of the same length provided on the other of the long sides 227. Thereafter, one end portion of the long side 227 is pushed outward to hold the support member 24 between the lower protruding portion 229a and the upper protruding portion 229b shorter than the lower protruding portion 229a. Since the upper protruding portion 229b provided on one of the long sides 227 is shorter than the lower protruding portion 229a, it is easy to attach the main cover portion 221 by spreading one end of the long side 227 outward.

  In this case, since the upper protruding portion 229b is shorter than the lower protruding portion 229a, the main cover portion 221 may be easily detached. For this reason, the main cover part 221 is fixed at two or more fixing points on at least one of the support member 24 and the long side 227 of the support member 24.

As a second example shown in FIG. 13, the main cover portion 221 is provided so as to protrude from the inner wall surface of the main cover portion 221, and has a lower protrusion portion 229 a that supports the lower portion of the support member 24, and a lower protrusion portion 229 a. And an upper projecting portion 229b which is provided so as to project from the inner wall surface and supports the upper portion of the support member 24. And the length of the lower protrusion part 229a and the upper protrusion part 229b is 3.6 mm or more and 7.5 mm which is 1.2 to 2.5 times the length of the lower protrusion part 229a and the upper protrusion part 229b shown in FIG. It may be the following.
In this case, since both of the lower protrusion 229a and the upper protrusion 229b are sufficiently long, the support member 24 is attached between the protrusions 229 by sliding the support member 24 from the end of the main cover 221. It is done.

In the second example, as shown in FIG. 14, the main cover portion 221 includes a fixing hole 228 (228 b) provided at the center of the main cover portion 221. The fixed hole portion 228 is provided at a position facing the fixing hole portion 241 (241b) provided in the central portion of the support member 24. The main cover portion 221 is fixed by a support member 24 and a main cover portion fixing part provided through the fixed fixing hole 228 (228b) and the fixing hole 241 (241b). At this time, the main cover portion 221 does not have to be provided with a hole to be fixed other than the hole 228b to be fixed.
In the second example shown in FIG. 14, the length of the protruding portion 229 (the lower protruding portion 229 a and the upper protruding portion 229 b) that holds the support member 24 provided on the main cover portion 221 is the lower protruding portion shown in FIG. 8. It is formed sufficiently longer than 229a and the upper protrusion 229b. Thereby, the main cover part 221 can hold the support member 24 firmly. For this reason, the main cover part 221 is sufficiently fixed to the support member 24 even if there is only one fixing part, and the main cover part 221 is not deformed.

The main cover portion 221 described above is configured to support the substrate of the support member 24 in which the end portion of the main cover portion 221 facing the instrument body 10 (the portion of the long side 227 shown in FIG. It is formed so as to be located at the same position as the back surface of the surface 24a (the surface indicated by reference numeral 24b in FIG. 10A) or on the light irradiation direction side of the back surface of the substrate support surface 24a.
Of the light emitted from the light emitting element 21, the light transmitted through the region located in the instrument main body 10 of the main cover portion 221 is blocked by the instrument main body 10. For this reason, it is preferable from the viewpoint of the light irradiation efficiency of the illuminating device 1 to reduce the main cover portion 221 entering the instrument body 10 as much as possible. By adjusting the position of the end portion of the main cover portion 221 as described above, the loss of light emitted from the light emitting element 21 is reduced, and the light is efficiently guided to the light irradiation direction side such as the floor side. be able to.

The main cover portion 221 preferably has a support member holding portion that holds the support member 24 in a region including the end portion (long side 227) (see FIGS. 8, 12, and 13). In other words, the main cover part 221 preferably holds the support member 24 in the end region of the main cover part 221.
Specifically, the support member holding portion is a protruding portion 229 (a lower protruding portion 229a and an upper protruding portion 229b). The protruding portions 229 (the lower protruding portion 229a and the upper protruding portion 229b) are provided in an area as close to the end portion of the main cover portion 221 as possible.

  By holding the support member 24 in the end region of the main cover portion 221, the main cover portion 221 can make the position of the main cover portion 221 relative to the support member 24 as close to the light irradiation direction as possible. For this reason, the main cover part 221 entering the instrument body 10 can be reduced, the loss of light irradiated from the light emitting element 21 can be reduced, and light can be guided more efficiently to the light irradiation direction side. .

(End cover)
FIG. 15 is an orthographic view showing the configuration of the first end cover 222.
As shown in FIG. 15, the first end cover 222 has at least two projecting portions 222a and 222b projecting to the support member 24 side. Also, as shown in FIG. 16, movement restricting portions 242 (242a and 242b, details will be described later), which are part of the support member 24, are provided inside the protruding portions 222a and 222b, respectively.
Thereby, the movement of the first end cover 222 in the left-right direction (Y direction in FIG. 1) is restricted.

Further, as shown in FIG. 16, the protrusions 222a and 222b are sandwiched between a convex part 24c (not shown in FIG. 16) and a movement restricting part 242 (242a and 242b) provided on the support member 24.
Accordingly, the first end cover 222 is securely fixed at a predetermined position, and the movement in the left-right direction is reliably restricted.

Further, as shown in FIG. 15, the first end cover 222 is formed on the protrusion 222 a and engaged with the support member 24, and is formed on the protrusion 222 b and engaged with the support member 24. Engaging portion 222d. The engaging portions 222 c and 222 d engage with an engaged portion 243 (see FIG. 10) provided on the support member 24.
For example, the surface of the first end cover 222 facing the support member 24 of the projecting portions 222a and 222b has claw portions as the engaging portions 222c and 222d. The claw portion engages with a hole portion formed at a position facing the claw portion of the support member 24.

  As another example of the first end cover 222, the first end cover 222 may include a hole (not shown) as the engaging portion 222c and the protruding portion 222b. In this case, the support member 24 includes a claw portion as an engaged portion, and the claw portion of the support member 24 engages with the hole portion of the first end cover 222.

Accordingly, the first end cover 222 is reliably restricted from moving in the left-right direction and is unlikely to be detached from the support member 24.
This is because the movement restricting portions 242a and 242b prevent the protruding portions 222a and 222b of the first end cover 222 from bending inward.

As shown in FIG. 15, the engaging portions 222c and 222d are formed on the outer surfaces of the protruding portions 222a and 222b. For this reason, when attaching the 1st end cover 222 to the support member 24, the engaging parts 222c and 222d contact the side wall of the convex part 24c of the support member 24, and the protrusion parts 222a and 222b bend inward. At this time, the protrusions 222a and 222b may be bent inward.
For this reason, when the movement restricting portions 242a and 242b are not provided, the protrusions 222a and 222b may bend inward when a force is applied to the first end cover 222 in a direction away from the support member 24. .

However, the movement restricting portions 242a and 242b are provided inside the protruding portions 222a and 222b, that is, in a direction in which the protruding portions 222a and 222b may bend. The movement restricting portions 242 a and 242 b are formed by being bent after the engaging portions 222 c and 222 d are engaged with the engaged portion 243 of the support member 24.
For this reason, the bending of the protrusions 222a and 222b is prevented. As a result, the engaging portions 222 c and 222 d are prevented from being detached from the engaged portion 243 of the support member 24, and the first end cover 222 is not easily detached from the support member 24.

  Similarly to the first end cover 222, the second end cover 223 has a protruding portion or a protruding portion and an engaging portion. And when the 2nd end cover 223 is attached to the support member 24, the movement control part 242 of the support member 24 is provided inside a protrusion part.

(Light emitting element substrate)
FIG. 17 is a plan view showing the configuration of the substrate group 23.
As shown in FIG. 17, the light emitting element substrates 231 and 232 are long plate-like members extending long in one direction, and a plurality of light emitting elements 21 are mounted on one surface. As shown in FIG. 17, a plurality of long light emitting element substrates are arranged in a line in the longitudinal direction of the light emitting element substrates in a state where the short sides of each other face each other to form a substrate group 23. The substrate group 23 is formed of, for example, two light emitting element substrates 231 and 232. Hereinafter, the substrate group 23 will be described as being formed of two light emitting element substrates 231 and 232.

As shown in FIG. 17, wirings 28 d for supplying power to the light emitting element 21 are connected to the light emitting element substrates 231 and 232, respectively. At this time, the light emitting element substrates 231 and 232 are connected to the power supply unit 28 by a wiring 28d passing through a through portion 24d provided on a substrate support surface 24a of the support member 24 described later. The electric power supplied from the power supply circuit of the power supply unit 28 is supplied to the light emitting element 21 through the wiring 28d.
Note that the wiring 23 c illustrated in FIG. 17 is a wiring for electrically connecting the light emitting element substrates 231 and 232.

On the substrate group 23, a power connection terminal group (connectors 231a and 232a) to which a wiring 28d led out from the power supply unit 28 is connected and a wiring 23c for connecting between the adjacent light emitting element substrates 231 and 232 are connected. Board connection terminal groups (connectors 231b and 232b). The power supply connection terminal group and the substrate connection terminal group are respectively disposed at the opposing short-side ends of the light emitting element substrates 231 and 232.
That is, a connector 231a that is a first power supply connection terminal and a connector 231b that is a first substrate connection terminal are provided at one short side end of the light emitting element substrate 231. In addition, a connector 232a which is a second power supply connection terminal and a connector 232b which is a second substrate connection terminal are provided at one short side end of the light emitting element substrate 232. Then, the short side of the light emitting element substrate 231 where the connector 231a and the connector 231b are provided and the short side of the light emitting element substrate 232 where the connector 232a and the connector 232b are provided are opposed to each other. A group 23 is formed. Note that the light emitting element substrates 231 and 232 may have the same configuration.

Here, one of the connector 231a and the connector 232a is a plus side terminal, and the other is a minus side terminal. The connector 231b and the connector 232b are connected by the wiring 23c.
Therefore, in the substrate group 23, all of the plurality of light emitting elements 21 provided on the light emitting element substrate 231 and the plurality of light emitting elements 21 provided on the light emitting element substrate 232 are between the connector 231a and the connector 232a. Connected in series.
With such a configuration, the assembly process of the substrate group 23 is facilitated. Further, with such a configuration, it is possible to shorten the distance between the wiring 23c that connects the light emitting element substrates 231 and 232 and the wiring 28d from the power supply unit 28. For this reason, generation | occurrence | production of noise can be suppressed.

The power supply terminal groups (connectors 231a and 232a) are arranged along one long side of the board group 23, and the board connection terminal group (connectors 231b and 232b) is the other long side of the board group 23. It is arranged along.
At this time, the connectors 231a and 232a are preferably arranged on the substrate group 23 via at least one light emitting element 21. The connectors 231b and 232b are preferably disposed via at least one light emitting element 21. This is to ensure the creepage distance between the connectors 231a and 232a and the connectors 231b and 232b.

As shown in FIG. 17, the connectors 231a and 231b include a light emitting element 21 provided at a position closest to the short side of the light emitting element substrate 231 and a light emitting element 21 provided at a position closest to the short side. Is preferably provided in the region X between the two. Further, the connectors 231a and 231b are closer to the light emitting element 21 provided at the closest position to the short side than the light emitting element 21 provided at the second closest position to the short side in the region X described above. It is preferable to be provided.
Similarly, the connectors 232a and 232b are in a region Y between the light emitting element 21 provided at the position closest to the short side of the light emitting element substrate 232 and the light emitting element 21 provided at the position closest to the short side. It is preferable to be provided. In addition, the connectors 232a and 232b are closer to the light emitting element 21 provided at the closest position to the short side than the light emitting element 21 provided at the second closest position to the short side in the region Y described above. It is preferable to be provided.

  In addition to the connector positions shown in FIG. 17, as shown in FIGS. 18A, 18B, and 18C, the power connection terminal groups (connectors 231a and 232a) and the board connection terminal groups ( Connectors 231b and 232b) may be arranged.

  Thus, the reflection covering the light emitting element substrates 231 and 232 while ensuring the creepage distance between the connectors 231a and 232a arranged along the same long side of the substrate group 23 and between the connectors 231b and 232b. The area of the member (details will be described later) can be increased.

(Support member)
The support member 24 supports the light emitting element substrates 231 and 232 (substrate group 23) on which the light emitting element 21 is mounted. The support member 24 is formed of a heat dissipating material, and also has a function of a heat sink that dissipates heat of the light emitting element 21.
As shown in FIGS. 4 and 20, the support member 24 has a substrate support surface 24a that faces the substrate group 23 and supports the substrate group 23, and a power supply unit support that supports the power supply unit 28 on the back surface of the substrate support surface 24a. It has the surface 24b and the extension part 24e extended to the both sides of the power supply part 28. As shown in FIG. The substrate support surface 24 a is formed wider than the width of the substrate group 23.

The extension part 24e is engaged with the translucent cover 22. Specifically, the end portion of the extending portion 24 e is held by the lower protruding portion 229 a and the upper protruding portion 229 b provided on the main cover portion 221 of the translucent cover 22.
Thereby, the 1st space part 115 (refer FIG. 4) enclosed by the extension part 24e of the supporting member 24, the side surface of the power supply part 28, and the inner wall of the side edge part 112 of an instrument main body is formed. The first space 115 can accommodate the wiring of the lighting device 1 and the like. For this reason, the attachment of the light emitting unit 20 to the instrument body 10 is not hindered by the wiring of the power supply cable 40 or the like.

The support member 24 has, for example, a flat plate shape in which the substrate group 23 is provided on one surface, the power supply unit 28 is provided on the other surface, and the width is larger than the width of the power supply unit 28. That is, the extending part 24e extending on both sides of the power supply part 28 is formed on the same plane as the power supply part support surface 24b.
Further, as shown in FIGS. 4 and 20, the projecting portion 24 c is formed by forming the projecting portion 24 e extending on both sides of the power supply unit 28 into a projecting shape projecting in the light irradiation direction of the light emitting element 21. It may be. The convex portions 24c are formed such that both ends of the support member 24 protrude in the light irradiation direction from the power source support surface 24b on the back surface of the substrate support surface 24a. The support member 24 is fixed to the main cover part 221 by attaching the convex part 24 c to the main cover part 221.

It is preferable that the extended portions 24e extending on both sides of the power supply portion 28 are convex portions 24c that protrude in the light irradiation direction of the light emitting element 21 because the first space portion 115 is formed larger.
Moreover, since the convex part 24c which is a part of the support member 24 which has a function as a heat sink protrudes in the direction which goes outside the instrument main body 10, the heat dissipation of the support member 24 improves.
Furthermore, since the 2nd reflective component 29b and the 3rd reflective component 29c (refer FIG. 9) are inclined and provided by the convex part 24c, the reflected light of the light emitting element 21 can be reflected efficiently.

  As shown in FIG. 20, it is preferable that the top portion of the convex portion 24 c is formed so as to be inclined so as to protrude larger toward the outside of the support member 24. Moreover, it is preferable that the top part of the convex part 24 c has a shape that does not enter the ½ beam angle region of the light emitting element 21.

  The support member 24 fixes the substrate group 23 on the substrate support surface 24a by a plurality of substrate fixing members 25 (details will be described later) provided at both ends of the substrate group 23 in the width direction. A plurality of protrusions are formed on the back surface (power supply unit support surface 24 b) of the substrate support surface 24 a of the support member 24 by screws 26 or the like for fixing the substrate fixing member 25 to the support member 24.

FIG. 19 is a perspective sectional view showing a BB ′ section of FIG. 17. As shown in FIGS. 17 and 19, the support member 24 includes a through portion 24 d for passing the wiring 28 d led out from the power supply portion 28. The through portion 24d is provided on the substrate support surface 24a.
Here, as shown in FIG. 7, the support member 24 includes a first substrate fixing portion and a second substrate fixing portion for fixing the substrate group 23 to both ends of the support member 24 in the longitudinal direction. Yes. The first substrate fixing portion and the second substrate fixing portion are, for example, screw holes for attaching screws 26 and the like for fixing the substrate fixing member 25 protruding from the power supply unit support surface 24b at both ends in the longitudinal direction of the support member 24. And so on.
The through portion 24d is preferably provided between the first substrate fixing portion and the second substrate fixing portion. Thereby, it is possible to prevent the wiring 28d routed from the power supply unit support surface 24b to the substrate support surface 24a through the through portion 24d from being caught by the tip of the screw 26 exposed on the power supply unit support surface 24b.

Further, as shown in FIG. 7, the support member 24 has a first attachment portion (a first attachment portion for attaching the light emitting unit 20 to the instrument main body 10 on the back surface side (power supply portion support surface 24 b) of the substrate support surface of the support member 24. A first spring receiving portion 27a) and a second attachment portion (second spring receiving portion 27b) are provided.
More preferably, the through portion 24d is provided between the first spring receiving portion 27a and the second spring receiving portion 27b. As a result, the wiring 28d routed from the power supply support surface 24b to the substrate support surface 24a through the through portion 24d is attached to the tip of the screw 26 exposed on the power supply support surface 24b or the power supply support surface 24b. It is possible to prevent the first spring receiving portion 27a and the second spring receiving portion 27b from being caught.

  Further, as shown in FIG. 19, the penetrating portion 24 d is more preferably provided at a position facing the power supply portion 28 of the support member 24. By providing the through portion 24d at a position facing the power supply portion 28, the wiring 28d led out from the power supply portion 28 is not exposed to the power supply portion support surface 24b of the support member 24, and is exposed on the substrate support surface 24a through the through portion 24d. Can be connected to the substrate group 23. For this reason, it is not necessary to route the wiring 28d in a wide area on the support member 24, the wiring 28d can be shortened, and the assembly of the light emitting unit 20 is improved. Further, since the wiring is not exposed to the outside of the 28d, the safety is improved and the double coating of the wiring becomes unnecessary.

Next, a fixing portion for fixing the support member 24 and the main cover portion 221 will be described.
FIG. 11 schematically shows a side view of the support member 24 and the main cover portion 221.
As shown in FIG. 11, the support member 24 has at least two fixing hole portions 241 provided on the main cover portion facing surface facing the main cover portion 221 on at least one of the long sides of the support member 24. The fixing hole portions 241 (241a, 241b, 241c) are respectively provided at positions facing the fixing hole portions 228 (228a, 228b, 228c) of the main cover portion 221 (see, for example, FIG. 10A).

  The support member 24 and the main cover portion 221 (see FIG. 10) are fixed by a main cover portion fixing component such as a rivet. The fixing hole portion 241 (241a, 241b, 241c) of the support member 24 and the fixed hole portion 228 (228a, 228b, 228c) of the main cover portion 221 are respectively fixed by rivets (not shown). In this case, for example, a rivet is passed from the main cover part 221 side to the fixing hole part 241 and the fixing hole part 228 which are positioned to overlap, and the rivet is crushed on the support member 24 side. Thereby, the main cover part 221 and the support member 24 are fixed.

  At this time, the fixing hole 241 (241a, 241b, 241c) is formed to have a different size from the fixing hole 228 (228a, 228b, 228c) of the main cover 221 of the main cover 221. As a result, even when the main cover portion 221 formed of a resin material in a high temperature environment or the like expands due to heat, the displacement of the fixing hole portion 241 due to the expansion is absorbed and the main cover portion 221 is deformed. It is suppressed.

  One of the fixing hole portion 241 of the opposing support member 24 and the fixing hole portion 228 of the main cover portion 221 is formed in a round shape, and the fixing hole portion 241 of the opposing support member 24 and the covered portion of the main cover portion 221 are covered. The other of the fixing hole portions 228 may be formed in a long hole shape. That is, the fixing hole portion 241 of the support member 24 is formed in a round shape when the fixing hole portion 228 of the main cover portion 221 is formed in a long hole shape. Further, the fixing hole portion 241 of the support member 24 is formed in a long hole shape when the fixing hole portion 228 of the main cover portion 221 is formed in a round shape.

  The fixing hole 241 is preferably formed in a round shape. When the fixing hole portion 241 has a round shape, the fixed hole portion 228 of the main cover portion 221 has a long hole shape, and deformation of the main cover portion 221 is more effectively suppressed.

Further, as shown in FIG. 14, one of the fixing hole portions 241 is formed in the same size as the opposing fixing hole portion 228, and the remaining fixing hole portion 241 is the opposing fixing hole. The hole 241 may be formed in a different size. That is, for example, the fixing hole 241b is formed to have the same size as the opposed fixed hole 228b, and the fixing holes 241a and 241c are formed to have a different size from the opposed fixed holes 228a and 228c. Is done.
Thereby, for example, the portion where the main cover fixing component is inserted and fixed through the fixing hole 241b of the support member 24 and the fixed hole 228b of the main cover 221 is completely fixed.

Moreover, it is preferable that the fixing hole 241 formed in the same size as the opposing fixing hole 228 is formed in a round shape. That is, it is preferable that both the fixing hole 228b and the fixing hole 241b facing each other are formed in a round shape. As a result, the fixing hole 228b and the fixing hole 241b are securely fixed by the main cover fixing component.
The fixed hole portion 228 having a round shape is preferably provided at the center of the long side 227 of the main cover portion 221. Since the support member 24 and the main cover portion 221 are completely fixed at the center of the lighting device 1, when the main cover portion 221 expands, the lighting device 1 expands evenly at both ends, and the entire lighting device 1. As a result, the design for expansion of the main cover portion 221 is facilitated.

Next, a fixing part for fixing the support member 24 to the first end cover 222 and the second end cover 223 will be described. Hereinafter, the fixing of the first end cover 222 will be specifically described.
As shown in FIG. 10, the support member 24 has movement restricting portions 242 (242 a and 242 b) provided inside the protrusions 222 a and 222 b of the main cover portion 221 when the main cover portion 221 is attached. . For example, the movement restricting portion 242 is formed such that a part of the support member 24 is cut and raised to rise inside the protruding portions 222a and 222b. That is, the movement restricting portion 242 is formed by making a cut in the substrate support surface 24a of the support member 24 and bending the substrate to the substrate support surface 24a.
Thereby, the movement restricting unit 242 restricts the movement of the first end cover 222 in the left-right direction (Y direction in FIG. 1).

Further, it is preferable that the movement restricting portion 242 is formed at a position spaced from the convex portion 24c of the support member 24 by a distance substantially equal to the thickness of the protruding portion 222a or 222b. Thereby, the convex part 24 c and the movement restricting part 242 of the support member 24 sandwich the protruding part 222 a or 222 b of the first end cover 222.
Accordingly, the first end cover 222 is securely fixed at a predetermined position, and the movement in the left-right direction is reliably restricted.

Further, the support member 24 includes engaged portions 243 (243a and 243b) formed on the end side of the support member 24.
As shown in FIG. 20, the engaged portion 243 is formed to be engageable with an engaging portion 222c formed on the protruding portion 222a of the first end cover 222 and an engaging portion 222d formed on the protruding portion 222b. The When the first end cover 222 is attached to the engaged portion 243 of the support member 24, the engaging portions 222c and 222d (see FIG. 15) of the first end cover 222 are locked.

At this time, the movement restricting portions 242a and 242b are provided inside the protrusions 222a and 222b, that is, in a direction in which the protrusions 222a and 222b may bend. The movement restricting portions 242 a and 242 b are formed by being bent after the engaging portions 222 c and 222 d are engaged with the engaged portion 243 of the support member 24.
For this reason, the bending of the protrusions 222a and 222b is prevented. As a result, the engaging portions 222 c and 222 d are prevented from being detached from the engaged portion 243 of the support member 24, and the first end cover 222 is not easily detached from the support member 24.

For example, the first end cover 222 has, as the engaged portion 243, a hole formed at a position facing the claw portions that are the engaging portions 222 c and 222 d of the main cover portion 221. The engaged portion 243 is formed in a rectangular shape, for example. By forming the engaged portion 243 of the support member 24 in a rectangular shape, even when the first end cover 222 is deformed in a high temperature environment or the like, the deformation of the first end cover 222 can be absorbed. .
Further, the first end cover 222 may have a claw portion formed as a portion to be engaged 243 at a position facing the hole portions that are the engaging portions 222 c and 222 d of the main cover portion 221.

  The support member 24 has a fixing hole portion having the same configuration as the fixing hole portion 241, the movement restricting portion 242, and the engaged portion 243 at the other end portion of the supporting member 24 to which the second end cover 223 is attached. A movement restricting portion and a fixing hole portion are provided.

(Substrate fixing member)
The substrate fixing members 25 (25a to 25n) are provided at both ends of the substrate group 23 on the substrate support surface 24a of the support member 24, and fix the substrate group 23 to the support member 24. In the light emitting unit 20 shown in FIG. 9, a plurality of 14 substrate fixing members 25 from the substrate fixing member 25 a to the substrate fixing member 25 n are provided at both ends of the substrate group 23. Hereinafter, the substrate fixing member 25 a to the substrate fixing member 25 n are referred to as the substrate fixing member 25.

As shown in FIG. 21, the substrate fixing member 25 has a shape that supports the side portion of the substrate group 23 and projects on the light emitting element mounting surface of the substrate group 23. The substrate fixing member 25 is fixed to the support member 24 with screws 26.
For this reason, the substrate group 23 is fixed so as not to float with respect to the support member 24.

FIG. 22 is an orthographic projection showing the shapes of the substrate fixing members 25a to 25c, 25e to 25g, 25h to 25j, and 25l to 25n in FIG. 22A is a front view of the substrate fixing member, FIG. 22B is a left side view of the substrate fixing member, FIG. 22C is a right side view of the substrate fixing member, and FIG. FIG. 22D is a top view of the substrate fixing member, FIG. 22E is a bottom view of the substrate fixing member, and FIG. 22F is a rear view of the substrate fixing member.
A substrate fixing member (hereinafter referred to as a substrate fixing member 251) shown in FIG. 22 is formed between a convex portion 24c formed in both ends of the substrate supporting surface 24a of the supporting member 24 and protruding in the light irradiation direction and the substrate group 23. A main part 251a disposed on the board, a board pressing part 251b that covers a part of the mounting surface of the board group 23 and holds the board group 23 in the direction of the support member 24, and a reflective component that holds the reflecting member on the surface of the main part 251a Holding part 251c. The substrate fixing member 251 has a screwing portion 251 d that is screwed when the substrate fixing member 251 is fixed with the screw 26.

As shown in FIGS. 21 and 22, the substrate fixing member 251 fixes a reflecting member that reflects the light emitted from the light emitting element 21. Specifically, the substrate pressing portion 251b of the substrate fixing member 251 moves the first reflective component 29a (see FIG. 9) that exposes the light emitting element 21 and covers the substrate group 23 in the direction of the support member 24 together with the substrate group 23. Hold down.
In addition, the reflection component holding portion 251c of the board fixing member 251 includes a second reflection component 29b arranged to be inclined from both ends in the width direction of the first reflection component 29a toward the light irradiation direction from the light emitting element 21; The third reflective component 29c (see FIG. 9) is held on the surface of the main portion 251a. At this time, the reflective component holding part 251c is configured such that a part of the top portion is provided in a state where a gap capable of holding the second reflective component 29b or the third reflective component 29c is provided between the reflective component holding portion 251c and the top of the convex portion 24c of the support member 24. It is formed to cover. That is, the reflective component holding portion 251 c is formed in a shape that does not adhere to the top of the convex portion 24 c of the support member 24 when the substrate fixing member 251 is attached to the support member 24. The second reflective component 29b or the third reflective component 29c can be held in a gap formed between the reflective component holding portion 251c and the top of the convex portion 24c of the support member 24.

FIG. 23 is an orthographic projection showing the shapes of the substrate fixing members 25d and 25k in FIG. 23A is a front view of the substrate fixing member, FIG. 23B is a left side view of the substrate fixing member, and FIG. 23C is a right side view of the substrate fixing member. D) is a top view of the substrate fixing member, FIG. 23 (E) is a bottom view of the substrate fixing member, and FIG. 23 (F) is a rear view of the substrate fixing member.
A substrate fixing member (hereinafter referred to as a substrate fixing member 252) shown in FIG. 23 includes a main portion 252a corresponding to the main portion 251a of the substrate fixing member 251, a substrate pressing portion 252b corresponding to the substrate pressing portion 251b, and a reflection. A reflection component holding portion 252c corresponding to the component holding portion 251c and a screwing portion 252d corresponding to the screwing portion 251d are provided. The board fixing member 252 further includes a wiring fixing mechanism 252e that fixes the wirings 23c and 28d connected to the board group 23.
The substrate fixing member 252 is disposed at a position covering the wiring 23c or 28d (see FIG. 17) connected to the light emitting element substrates 231 and 232. In the light emitting unit 20 of the present embodiment, the substrate fixing member 252 is disposed at a joint portion of the light emitting element substrates 231 and 232 in the substrate group 23. The wiring fixing mechanism 252e is formed in a shape that can secure a space through which the wiring 23c or 28d can be led out even when the substrate fixing member 252 is fixed to the support member 24. The wiring 23c or 28d is connected to the light emitting element substrates 231 and 232 through the wiring fixing mechanism 252e. For this reason, by using the substrate fixing member 252, it is possible to prevent the substrate fixing member 25 from pressing the wirings 23c and 28d.

  The main part 252a, the board pressing part 252b, the reflection component holding part 252c, and the screwing part 252d of the board fixing member 252 are the main part 251a, the board pressing part 251b, the reflection part holding part 251c, and the screw fixing part 252d. It has the same function as the screwing portion 251d.

Such a substrate fixing member 25 (substrate fixing members 251 and 252) is formed, for example, by injection molding a resin material.
The substrate fixing member 25 is preferably formed of a highly reflective material. Even if a part of the substrate fixing member 25 is exposed from the first reflecting component 29a, the second reflecting component 29b, or the third reflecting component 29c, the light of the light emitting element 21 can be efficiently reflected. It is.
Further, the substrate fixing member 25 (substrate fixing members 25d and 25k shown in FIGS. 9 and 21) disposed so as to cover the wirings 23c and 28d connected to the light emitting element substrates 231 and 232 is formed of a transparent material. It is preferable. Since the wiring state of the wiring 23c can be confirmed through the substrate fixing member 25, it is possible to more easily prevent the wirings 23c and 28d from being pressed by the substrate fixing member 25.

(Reflective member)
The reflection member 29 has a function of reflecting the light emitted from the light emitting element 21. The light emitted from the light emitting element 21 is reflected by the reflecting member 29 in a preset direction (for example, a direction toward the floor surface). The reflection member 29 is fixed by an adhesive, a pin, a screw or the like at an arbitrary position such as the substrate group 23, the support member 24, or the substrate fixing member 25.

  As shown in FIGS. 8 and 9, the light emitting unit 20 according to the present embodiment includes a first reflection component 29 a, a second reflection component 29 b, and a third reflection component 29 c as the reflection member 29. . The first reflective component 29a exposes the light emitting element 21 and covers the substrate group 23 (with the light emitting element substrates 231 and 232). The second reflective component 29b is disposed so as to be inclined from one end portion in the width direction of the first reflective component 29a toward the irradiation direction of the light from the light emitting element 21. The third reflective component 29c is disposed so as to be inclined from the other end portion in the width direction of the first reflective component 29a toward the direction of irradiation of light from the light emitting element 21. The first reflective component 29a, the second reflective component 29b, and the third reflective component 29c are different components. Thereby, each attachment of the 1st reflective component 29a, the 2nd reflective component 29b, and the 3rd reflective component 29c becomes easy.

Further, a resistor element (not shown) may be provided on the mounting surface side of the light emitting element 21 of the substrate group 23. In this case, the first reflecting component 29a is provided with an opening for exposing the light emitting element 21 and an opening for exposing the resistance element.
By providing the above-described opening in the first reflective component 29a, the light emitted from the light emitting element 21 is reflected on the entire surface of the first reflective component 29a, the second reflective component 29b, and the third reflective component 29c, thereby efficiently illuminating. Used for light emission of the device 1.

FIG. 24 is a perspective view showing a state in which the first reflective component 29a, the second reflective component 29b, and the third reflective component 29c are attached to the substrate fixing member 25 (25a to 25n). 25 is a cross-sectional view showing a CC ′ cross-section shown in FIG.
As shown in FIGS. 24 and 25, in the second reflective component 29b, one end on the side adjacent to the substrate group 23 in the width direction of the second reflective component 29b is positioned outside one end in the width direction of the substrate group 23. Are arranged as follows. The third reflective component 29c is arranged so that one end of the third reflective component 29c adjacent to the substrate group 23 in the width direction is located outside the other end of the substrate group 23 in the width direction. That is, the second reflective component 29 b and the third reflective component 29 c are arranged so as not to fog over the first reflective component 29 a provided on the substrate group 23.

The second reflective component 29b is preferably arranged so that one end of the second reflective component 29b adjacent to the substrate group 23 in the width direction faces the one end in the width direction of the substrate group 23 without a gap. The third reflective component 29c is preferably arranged so that one end of the third reflective component 29c adjacent to the substrate group 23 in the width direction faces the other end in the width direction of the substrate group 23 without a gap. .
Here, in this embodiment, “opposing without a gap” is limited to the case where the first reflective component 29a and the second reflective component 29b, and the first reflective component 29a and the third reflective component 29c are completely arranged without a gap. I can't. The term “opposing without a gap” means the position of one end on the side adjacent to the substrate group 23 in the width direction of the second reflective component 29b when viewed from the mounting surface side of the substrate group 23 (light emitting element substrates 231 and 232). This means that the position of one end in the width direction of the substrate group 23 coincides.

  The first reflective component 29 a is fixed on the substrate support surface 24 a of the support member 24 by the substrate fixing member 25. Further, the second reflective component 29 b and the third reflective component 29 c are fitted and fixed in a gap formed between the top of the convex portion 24 c of the support member 24 and a part of the substrate fixing member 25. Specifically, the second reflective component 29b and the third reflective component 29c are fitted into a gap formed between the top of the convex portion 24c of the support member 24 and the reflective component holding portion 251c of the substrate fixing member 251. Yes. Accordingly, the second reflective component 29b and the third reflective component 29c are inclined along the shape of the top of the convex portion 24c of the support member 24. The second reflective component 29b and the third reflective component 29c are fixed by different board fixing members 25.

  Thereby, in the assembled light emitting unit 20, the second reflective component 29b and the third reflective component 29c are arranged to be inclined toward the projecting portions 221c and 221d formed on the inner wall surface of the translucent cover, respectively. . That is, the second reflective component 29b has one end on the side not adjacent to the substrate group 23 in the width direction of the second reflective component 29b (that is, the other end opposite to one end adjacent to the substrate group 23). The cover 22 is disposed to be inclined toward the protrusion 221 c formed on the inner wall surface. In addition, the third reflective component 29c has one end on the side not adjacent to the substrate group 23 in the width direction of the third reflective component 29c (that is, the other end facing the one end adjacent to the substrate group 23). The cover 22 is disposed so as to be inclined toward the protruding portion 221d formed on the inner wall surface. Thus, even when the second reflective component 29b or the third reflective component 29c is displaced in the floor direction due to weight or the like, the protruding portion 221c or 221d of the translucent cover 22 serves as a stopper, and the second reflective component 29b or The third reflective component 29c can be prevented from falling.

26A, the first reflective component 29a disposed on the substrate group 23 is disposed on the light-emitting element substrate 232 and the first reflective component 291a disposed on the light-emitting element substrate 231. And the first reflecting component 292a. In FIG. 26A, the first reflective component 291a and the first reflective component 292a are indicated by diagonal lines.
At this time, the first reflective components 291a and 292a overlap areas excluding the area surrounded by the power supply connection terminal group (connectors 231a and 232a) and the board connection terminal group (connectors 231b and 232b). That is, the first reflective component 291a covers the board group 23 from one end of the board group 23 to the installation positions of the connectors 231a and 231b. The first reflective component 292a covers the board group 23 from the other end of the board group 23 to the installation positions of the connectors 232a and 232b.

  In the “region surrounded by the power supply connection terminal group (connectors 231a and 232a) and the board connection terminal group (connectors 231a and 232a)”, the opposite short-side ends on the light emitting element substrates 231 and 232 are arranged. Two or more light emitting elements 21 arranged in the part are included. In FIG. 26, the four light emitting elements 21 are included in a region not covered with the first reflective components 291a and 292a.

Further, as shown in FIG. 26B, the light emitting unit 20 includes a substrate facing portion reflection component 293a disposed so as to cover the short sides of the two light emitting element substrates 231 and 232. Also good. In FIG. 26B, the first reflective component 291a, the first reflective component 292a, and the substrate facing portion reflective component 293a are indicated by hatching.
As a result, the light emitted from the light emitting element 21 can be sufficiently reflected even at the joint portion between the two light emitting element substrates 231 and 232, so that the brightness can be made uniform over the entire surface of the substrate group 23. .

(Spring holder)
As shown in FIG. 27, the spring receiving part 27 maintains the state where the light emitting unit 20 is attached to the instrument body 10 by engaging with the spring part 13 (see FIG. 5B) of the instrument body 10. Used for Specifically, the first spring receiving portion 27 a engages with the first spring portion 13 a of the instrument body 10, and the second spring receiving portion 27 b engages with the second spring portion 13 b of the instrument body 10. That is, the spring part 13 (the first spring part 13a and the second spring part 13b) and the spring receiving part 27 (the first spring receiving part 27a and the second spring receiving part 27b) place the light emitting unit 20 in the light emitting unit mounting recess 111. It functions as an attachment state maintaining unit that maintains the attached state. Note that the attachment state maintaining unit may have a shape different from the spring part 13 and the spring receiving part 27 described in the present embodiment as long as the state where the light emitting unit 20 is attached to the instrument body 10 is maintained.

(Power supply part)
The power supply unit 28 houses a lighting circuit (that is, a power supply circuit) for the light emitting element 21 such as an LED, and supplies power to the light emitting element 21 mounted on the substrate group 23. The power supply unit 28 is connected to a power supply cable 40 that is led into the light emitting unit mounting recess 111 from a mounted surface such as a ceiling to which the instrument body 10 shown in FIG. 5 is mounted.
As illustrated in FIG. 27, the power supply unit 28 includes a power supply board 28 a including a power supply circuit, an insulating member 28 b, a power supply box 28 c that is a housing that houses the power supply board 28 a and the insulating member 28 b, and the light emitting element 21. And a wiring 28d for supplying power (the wiring 28d is not shown in FIG. 27).
The power supply unit 28 is disposed close to the support member 24.

The power supply circuit provided in the power supply board 28 a converts, for example, alternating current power supplied from the power supply cable 40 into direct current, and supplies the output (that is, direct current power) to the light emitting element 21. The power supply substrate 28a is fixed to the surface of the insulating member 28b on the support member 24 side.
As shown in FIG. 19, the power supply board 28a is disposed closer to the support member 24 in the internal space of the power supply box 28c.

The insulating member 28b is made of a resin material having a high melting point and insulating properties such as polypropylene and polyethylene. The insulating member 28 b is disposed on the power supply unit support surface 24 b of the support member 24. As a result, the power supply substrate 28 a is disposed on the insulating member 28 b and insulated from the support member 24.
The insulating member 28b has, for example, a box shape formed by bending a plurality of sheet-like members, and is disposed so as to surround the power supply substrate 28a.

The power supply box 28c is made of a material such as plastic, aluminum, or stainless steel. The power supply box 28c is a housing that covers the power supply board 28a.
The wiring 28 d is connected to the substrate group 23 through the through portion 24 d provided on the substrate support surface 24 a of the support member 24.

The power supply unit 28 is fixed to the power supply unit support surface 24b of the support member 24 by, for example, a claw unit (not shown) provided in the power supply box 28c. The power supply unit 28 may be fixed to the power supply unit support surface 24b of the support member 24 by a fastening member such as a screw.
Further, the power supply unit 28 has a thickness such that the second space 116 (see FIG. 4) is formed between the upper surface of the power supply unit 28 and the bottom plate part 114 of the instrument body 10.
As a result, the power supply cable 40 and other wirings are arranged in the second space 116 secured between the upper surface of the power supply unit 28 and the instrument body 10. Therefore, the power supply unit 28 overlaps with a power supply cable 40 (not shown) when viewed in the normal direction of the mounted surface. For this reason, the attachment of the light emitting unit 20 is not hindered by the wiring of the power supply cable 40 or the like.

The light emitting unit 20 may include a wiring protection insulating member that is positioned inside the through portion 24d of the support member 24 and protects the wiring 28d. Here, the “inside” of the penetrating portion 24d indicates a direction toward the central axis of the penetrating portion 24d.
In the light emitting unit 20, the wiring 28 d is led out from the power supply unit 28 to the substrate support surface 24 a side through the through part 24 d of the support member 24. At this time, the wiring 28d may hit and damage the inner wall of the through portion 24d of the support member 24. For example, when the wiring 28d is covered with a covering material, the covering material may be peeled off. For this reason, it is preferable to provide a wiring protection insulating member that makes it difficult for the inner wall of the through portion 24d and the wiring 28d to come into contact with each other.

Examples of the wiring protection insulating member include the following.
(1) First Example FIG. 28A is a perspective sectional view showing a BB ′ section in FIG. 17.
When the penetrating portion 24d is provided at a position facing the power supply portion 28 of the support member 24, the insulating member 28b can also serve as an insulating member for wiring protection as shown in FIG. That is, the wiring 28d connected to the power supply substrate 28a is connected to the substrate group 23 provided on the substrate support surface 24a through the through portion 24d of the support member 24. At this time, since the insulating member 28 b is provided between the power supply substrate 28 a and the support member 24, a through portion 281 b smaller than the through portion 24 d is provided in the insulating member 28 b, and the through portion 24 d of the support member 24 is provided. The insulating member 28b is disposed so that the through portion 281b of the insulating member 28b overlaps. For this reason, it is possible to make it difficult for the insulating member 28b to contact the penetrating portion 24d of the support member 24 and the wiring 28d.

(2) Second Example FIG. 28B shows a configuration of the wiring 28d led out to the substrate support surface 24a side through the power supply substrate 28a, the insulating member 28b, and the through portion 24d provided in the support member 24. It is sectional drawing shown.
As shown in FIG. 28B, the wiring protection insulating member 28e, which is a component different from the insulating member 28b, is provided on at least one of the substrate supporting surface 24a and the power supply supporting surface 24b of the supporting member 24 (FIG. In B), it may be provided in close contact with the power source support surface 24b). The wiring protection insulating member 28e is formed of, for example, an insulating resin material.
As shown in FIG. 28B, the wiring protection insulating member 28e includes a through part 281e smaller than the through part 24d, and the through part 24d of the support member 24 and the through part of the wiring protection insulating member 28e. The wiring protection insulating member 28e is arranged so as to overlap with 281e. For this reason, the wiring protection insulating member 28e makes it difficult for the penetrating portion 24d of the support member 24 and the wiring 28d to come into contact with each other, and damage to the wiring 28d can be suppressed.
In the case of the second example, it is not necessary that the penetrating portion 24d is provided at a position facing the power supply portion 28 of the support member 24 as in the first example. Whatever the position of the penetrating part 24d is provided on the support member 24, the wiring protection insulating member 28e may be provided in close contact with the penetrating part 24d.

(3) Third Example FIG. 28C shows the configuration of the power supply substrate 28a, the insulating member 28b, and the wiring 28d led out to the substrate support surface 24a side through the through portion 24d provided in the support member 24. It is sectional drawing shown.
As shown in FIG. 28C, a wiring protection insulating member 28e, which is a component different from the insulating member 28b, may be provided so as to cover at least the inner wall of the penetrating portion 24d. The wiring protection insulating member 28e is formed of, for example, an insulating resin material.
As shown in FIG. 28C, the wiring protection insulating member 28e is provided so as to cover at least the inner wall of the through portion 24d. For this reason, it becomes difficult for the corner | angular part of the penetration part 24d of the supporting member 24, and the wiring 28d to contact, and damage to the wiring 28d can be suppressed.
Further, the wiring protection insulating member 28e may cover the substrate support surface 24a and the power supply unit support surface 24b of the support member 24. In this case, the insulating member 28e for wiring protection covers the corners formed by the substrate supporting surface 24a and the power source supporting surface 24b of the supporting member 24 and the inner wall of the penetrating portion 24d, thereby further suppressing damage to the wiring 28d. can do.
Also in the case of the third example, it is not necessary that the penetrating part 24d is provided at a position facing the power supply part 28 of the support member 24, and no matter what position of the supporting member 24 the penetrating part 24d is provided, the wiring The protective insulating member 28e may be provided so as to cover the inner wall of the penetrating portion 24d.

[Effect of the present invention]
According to the illuminating device which concerns on one Embodiment of this invention demonstrated above, the following effects can be acquired.
(1) Even when the light emitting unit is bent, since only a part of the light-transmitting cover of the light emitting unit that has entered the light emitting unit mounting recess is exposed, the appearance of the lighting device does not deteriorate.
(2) Since the space of the light emitting unit mounting recess can be widened, the workability of the light emitting unit mounting work is improved, and the capacity of the light emitting unit such as the power supply unit and the power supply cable is improved.
(3) The appearance of the lighting device can be kept good, and the light emitting unit is positioned at the mounting position of the light emitting unit by contacting at least a part of the inner wall surface of the light emitting unit mounting recess.
(4) A space for accommodating the power supply cable is secured between the bottom surface of the light emitting unit mounting recess and the light emitting unit, and the mounting of the light emitting unit is not hindered by the power supply cable.

(5) It is possible to suppress the light emitting unit from being attracted to the instrument main body by the attachment state maintaining unit and coming off from the instrument main body.
(6) The wiring routing distance derived from the power supply unit can be reduced. In addition, the wiring led out from the power supply unit is hardly exposed to the outside of the light emitting unit. Damage to wiring derived from the power supply can be suppressed. For this reason, the safety and appearance of the light emitting unit are improved.
(7) The mountability of each component such as the reflection sheet and the end cover is improved, and the mounted component is difficult to come off.
(8) Since the power supply substrate is disposed close to the support substrate that also serves as a heat sink, heat dissipation is improved.

(9) The end cover has at least two projecting portions projecting toward the support member, and a movement restricting portion that is a part of the support member is provided inside each projecting portion. For this reason, the movement of the end cover in the left-right direction (Y direction in FIG. 1) is restricted.
(10) An engaging portion such as a claw portion is provided on the protruding portion, and is engaged with an engaged portion such as a hole provided in the support member. Further, a movement restricting portion that is a part of the support member is provided inside the protruding portion of the end cover, and the protruding portion is sandwiched between the convex portion and the movement restricting portion of the supporting member. For this reason, it becomes difficult for the engaging part of the end cover to come off from the engaged part of the support member.
ing. For this reason,
(11) The fixing hole provided in the support member and the fixed hole provided at a position facing the fixing hole of the main cover part are formed in different sizes. Further, the main cover portion fixing component is inserted through the fixing hole portion and the fixing hole portion to fix the support member and the main cover portion. As a result, the displacement of the fixing hole due to the thermal expansion of the main cover part is absorbed, and the deformation of the main cover part is suppressed.

(12) The main cover portion is provided so as to protrude from the inner wall surface of the main cover portion 221 and includes protrusions (a lower protrusion and an upper protrusion) that hold the lower and upper portions of the support member. At this time, the upper protrusion is formed shorter than the lower protrusion. The upper protruding portion is provided in the vicinity of the end portion of the main cover portion 221, and the lower protruding portion is provided adjacent to the side of the upper protruding portion 229 b close to the light irradiation direction (floor direction) of the lighting device 1. For this reason, it becomes easy to attach the support member 24 to the main cover part 221.
(13) The lengths of the protrusions (the lower protrusion and the upper protrusion) that hold the support member provided in the main cover are sufficiently longer than the conventional lower protrusion and the upper protrusion shown in FIG. Is done. For this reason, it becomes possible for the main cover part to hold the support member 24 firmly, and the main cover part and the support member are sufficiently fixed even if there is only one fixed part, and the main cover part is not deformed.
(14) The fixture main body of the lighting device is composed of an attachment member and a side plate, and the side plate is formed of a resin material. For this reason, the moldability of the side plate is improved, and the engagement portion with the mounting member is easily formed. In addition, it becomes easy to add a functional unit (for example, a light receiving unit, a wireless receiving unit, a sensor, or a switch unit) for controlling the lighting device to the side plate. In this case, the function of the lighting device can be easily added or changed by replacing the side plate.

(15) Both ends of the support member in the light emitting unit of the lighting device have protrusions formed so as to protrude in the light irradiation direction from the back surface of the substrate support surface of the support member. Thereby, since the convex part 24c which is a part of support member which has a function as a heat sink protrudes in the direction which goes outside the instrument main body 10, the function as a heat sink of the support member 24 improves. As a result, the heat dissipation of the lighting device is improved.
(16) In the light emitting unit, the end of the main cover of the translucent cover (the long side facing the instrument body) is located at the same position as the power supply support surface of the support member or on the light irradiation direction side of the power supply support surface It is formed so that it may be located in. Thereby, the main cover part which penetrates in the instrument main body can be reduced as much as possible. For this reason, the loss of the light irradiated from the light emitting element 21 decreases, and the light can be efficiently guided to the light irradiation direction side such as the floor side.
(17) The support member includes a substrate support surface that supports the light emitting element substrate (substrate group), a power supply unit support surface that supports the power supply unit on the back surface of the substrate support surface, and an extending portion that extends to both sides of the power supply unit. And have. Thereby, the 1st space part enclosed by the extension part of the supporting member, the side surface of a power supply part, and the inner wall of the side edge part of an instrument main body is formed. Since wiring etc. can be accommodated in the 1st space part, attachment of the light emitting unit with respect to an instrument main body by wiring will not be inhibited.
(18) The main cover portion has a bottom surface portion formed in a flat shape and an inclined portion that is formed thinner than the bottom surface portion and is inclined with respect to the bottom surface portion. The main cover portion is formed of a resin material and includes a diffusion material that is uniformly dispersed. For this reason, the light which permeate | transmitted the bottom face part among translucent covers has the effect of diffusing the strong light of the light emitting element which consists of LED etc., and keeping the whole room bright. In addition, the light transmitted through the inclined portion has an effect of keeping the space other than just under the lighting device bright which tends to be dark because the strong light of the light emitting element is difficult to diffuse. And the whole room | chamber interior can be kept bright with the light which permeate | transmitted the bottom face part, and the light which permeate | transmitted the inclination part.

[Others]
The scope of the present invention is not limited to the illustrated and described exemplary embodiments, but also includes all embodiments that provide equivalent effects to those intended by the present invention. Further, the scope of the invention is not limited to the combinations of features of the invention defined by the claims, but can be defined by any desired combination of specific features among all the disclosed features.

DESCRIPTION OF SYMBOLS 1 Illuminating device 10 Appliance main body 13 Spring part 111 Mounting recessed part 20 Light emitting unit 21 Light emitting element 22 Translucent cover 221 Main cover part 222 First end cover 223 Second end cover 24 Support member 24d Through part 25 Substrate fixing member 28 Power supply part

JP 2013-179014 A

In order to solve the above-described problem, an illumination device according to an aspect of the present invention includes a light-emitting unit and a fixture main body to which the light-emitting unit is attached. The light-emitting unit includes a light-emitting element including an LED , A light emitting element substrate on which the light emitting element is mounted; a support member that supports the light emitting element substrate; and a main cover that covers the light emitting element and transmits light emitted from the light emitting element. cover part, it possesses a bottom portion is flat, and a slope portion inclined with respect to it and the bottom portion is flat, the inclined portion, the thickness from the bottom surface portion is formed thin and the bottom portion A pair of flat first inclined portions that are continuous to both end portions, and a pair of flat second inclined portions that are continuous to the end portion opposite to the bottom surface portion of the first inclined portions, 1 The inclined portion is moved closer to the bottom surface portion. The second inclined portion is gradually narrowed when viewed from the longitudinal direction of the support member as it approaches the first inclined portion as viewed from the longitudinal direction of the holding member. And a protrusion for attaching the main cover part to the support member is provided on the inner wall surfaces of both ends of the second inclined part, and the first inclined part is It has extended toward the said protrusion part provided in the said 1st inclination part side edge part .
Moreover, in order to solve the said subject, the illuminating device which concerns on the other aspect of this invention has a light emitting unit and the fixture main body to which the said light emitting unit is attached, The said light emitting unit is a light emitting element which consists of LED. A light emitting element substrate on which the light emitting element is mounted, a support member that supports the light emitting element substrate, and a main cover portion that covers the light emitting element and transmits light emitted from the light emitting element. The main cover portion includes a light diffusion portion that diffuses light formed flat on the bottom surface of the main cover portion, and the light diffusion portion that is flat and inclined with respect to the light diffusion portion. possess a light straight portion has high light linearity than an engaging portion to be engaged with the support member extending from said light straight portion, wherein the light straight portion is thinner in thickness than the light diffusing portion One formed and continuous at both ends of the light diffusion portion A pair of flat inclined portions, and the engaging portion is a pair of flat inclined portions continuous to an end of the light rectilinear portion opposite to the light diffusing portion, and the light rectilinear portion is As it approaches the light diffusing portion, it tilts so that the width gradually decreases when viewed from the longitudinal direction of the support member, and the engagement portion is viewed from the longitudinal direction of the support member as it approaches the light rectilinear portion. In some cases, a slope is formed so that the width gradually increases, and protrusions for attaching the main cover part to the support member are provided on the inner wall surfaces of both ends of the engagement part. It has extended toward the said protrusion part provided in the said light rectilinear advance part side edge part .

In addition, a light-emitting unit for a lighting device according to one embodiment of the present invention includes: a light-emitting element that includes an LED; a light-emitting element substrate on which the light-emitting element is mounted; a support member that supports the light-emitting element substrate; cover has a main cover portion for transmitting the light emitted from the light emitting element, said main cover portion and the bottom portion is flat, is formed thinner in thickness than a flat and the bottom surface portion and the possess an inclined portion inclined with respect to the bottom surface portion, the inclined portion includes a first inclined portion a pair of flat continuous to both end portions of the bottom portion thickness is thinner than and the bottom portion, they first A pair of flat second inclined portions that are continuous to an end portion of the one inclined portion opposite to the bottom surface portion, and the first inclined portion extends in the longitudinal direction of the support member as it approaches the bottom surface portion. Tilted so that the width gradually decreases when viewed from The second inclined portion is inclined so that the width gradually increases when viewed from the longitudinal direction of the support member as it approaches the first inclined portion, and the main cover portion is formed on inner wall surfaces at both ends of the second inclined portion. A protrusion for attaching the first inclined portion to the support member, and the first inclined portion extends toward the protruding portion provided at the first inclined portion side end of the second inclined portion. and said that you are.

Claims (6)

A light emitting unit;
An instrument body to which the light emitting unit is attached;
Have
The light emitting unit is
A light emitting element;
A light emitting element substrate on which the light emitting element is mounted;
A support member for supporting the light emitting element substrate;
A main cover that covers the light emitting element and transmits light emitted from the light emitting element;
Have
The main cover part is
The bottom,
An inclined portion that is formed thinner than the bottom portion and is inclined with respect to the bottom portion;
A lighting device. 2. The lighting device according to claim 1, wherein the main cover portion includes a diffusing material that is uniformly dispersed. The main cover part is
The lighting device according to claim 1, further comprising an engaging portion that extends from the inclined portion and engages with the support member. The bottom surface portion has higher light diffusibility than the inclined portion,
The lighting device according to any one of claims 1 to 3, wherein the inclined portion has higher light straightness than the bottom surface portion. A light emitting unit;
An instrument body to which the light emitting unit is attached;
Have
The light emitting unit is
A light emitting element;
A light emitting element substrate on which the light emitting element is mounted;
A support member for supporting the light emitting element substrate;
A main cover that covers the light emitting element and transmits light emitted from the light emitting element;
Have
The main cover part is
A light diffusion part for diffusing light formed on the bottom surface of the main cover part;
A light rectilinear portion that is formed to be inclined with respect to the light diffusing portion and has higher light straightness than the light diffusing portion;
An engaging portion extending from the light rectilinear portion and engaging with the support member;
A lighting device. A light emitting element;
A light emitting element substrate on which the light emitting element is mounted;
A support member for supporting the light emitting element substrate;
A main cover that covers the light emitting element and transmits light emitted from the light emitting element;
Have
The main cover part is
The bottom,
A light-emitting unit for an illuminating device having an inclined portion that is formed thinner than the bottom surface portion and is inclined with respect to the bottom surface portion.

Images