KR20130012674A - Lighting device and optical element of the same - Google Patents

Abstract

PURPOSE: A lighting device and an optical member are provided to improve light efficiency by simultaneously providing direct light and indirect light. CONSTITUTION: A first connecting terminal(120) is arranged at a center part of a combining member(110). The first connecting terminal is connected with a power driving unit. The optical member includes a lower surface and a side surface. The transmittance property of the side surface is higher than the lower surface. An extension unit is projected from the lower surface. The combining member is combined with a housing. One or more reflectors are arranged between the housing and the combining member. A light source unit(300) is combined with the combining member. The light source unit includes a light source body, a connecting member, and the optical member.

Description

LIGHTING DEVICE AND OPTICAL ELEMENT OF THE SAME}

Embodiments relate to a lighting device.

Light emitting diodes (LEDs) are a type of semiconductor device that converts electrical energy into light. The light emitting diode has advantages of low power consumption, semi-permanent life, fast response speed, safety and environmental friendliness compared to conventional light sources such as fluorescent and incandescent lamps. Accordingly, many researches for replacing the existing light sources with light emitting diodes have been conducted, and the light emitting diodes have been increasingly used as light sources for lighting devices such as various lamps, liquid crystal displays, electronic displays, and street lamps that are used indoors and outdoors.

Korean Patent Registration No. 10-0999407 (Notice: December 9, 2010)

Korean Patent Publication No. 10-2008-0078043 (Published: August 26, 2008)

The embodiment provides an optical member and a lighting device having a new structure.

The embodiment provides an optical member and an illumination device that are easy to replace and assemble.

Embodiments provide a light source body and a lighting device attachable to a conventional housing and with reduced manufacturing cost and weight.

The embodiment provides an optical member and an illumination device that provide both direct and indirect light simultaneously.

Optical member according to the embodiment, the lower surface; And a side surface disposed at an acute angle with the lower surface, wherein the transmittance of the side surface is higher than the transmittance of the lower surface, and protrusions are disposed on the side surface, and at least a part of the light irradiated to the lower surface is reflected to transmit the side surface. Can be.

The lower surface may further include an extension part which protrudes from the lower surface at a portion where the lower surface meets the side surface.

In addition, the extension may protrude longer than the protrusion.

In addition, it may further include an inwardly engaging portion disposed on the top of the side.

Lighting device according to the embodiment comprises a housing; A coupling member coupled to the inside of the housing; At least one reflector disposed between the housing and the coupling member; And a light source unit detachably coupled to the coupling member, wherein the light source unit includes: a light source body on which a light emitting module is disposed; A connection member disposed on an upper surface of the light source body and coupled to the coupling member; And it may include an optical member according to an embodiment coupled to the light source body.

In another embodiment, the lighting device comprises a housing; A light source body disposed inside the housing; One or more reflectors disposed between the housing and the light source body; A light emitting module disposed on a bottom surface of the light source body; And it may include an optical member according to an embodiment coupled to the light source body.

In another embodiment, the lighting device comprises a housing; A light source body disposed on an inner upper surface of the housing; A reflector disposed between the light source body and the housing; A light emitting module disposed on a bottom surface of the light source body; And an optical member coupled to the light source body and disposed to cover the light emitting module, wherein the optical member includes: a lower surface; And a side surface disposed at an acute angle with the bottom surface, and at least a portion of the light emitted from the light emitting module unit irradiated to the bottom surface may be reflected and transmitted by the side surface to be reflected by the reflector.

In another embodiment, the housing; A coupling member coupled to the inside of the housing; At least one reflector disposed between the housing and the coupling member; A light source body connected to the coupling member and having a light emitting module disposed on a bottom surface thereof; And an optical member coupled to the light source body, wherein the optical member comprises: a lower surface; And a side surface disposed at an acute angle with the bottom surface, wherein at least a portion of the light of the light emitting module irradiated to the bottom surface is reflected and transmitted by the side surface to be reflected by the reflector.

In addition, the light source body may have a protrusion on a side surface, and the locking portion may be disposed on the protrusion of the light source body.

According to the embodiment it can provide an optical member and a lighting device having a new structure.

According to the embodiment it can provide an optical member and a lighting device that is easy to replace and assemble.

According to the embodiment it can be provided an optical member and an illumination device for providing direct light and indirect light at the same time.

According to the embodiment it is possible to provide a light source body and a lighting device that can be attached to a conventional housing and reduced manufacturing cost and weight.

According to the embodiment, it is possible to provide an optical member and an illumination device with improved light efficiency.

1 illustrates a perspective view of a lighting apparatus according to an embodiment.
2 is an exploded perspective view of the lighting apparatus according to the embodiment.
3 shows a cross-sectional view of a lighting apparatus according to an embodiment.
4A shows an exploded perspective view of the housing, reflector and coupling member of FIG. 3.
4B is an exploded perspective view of the coupling member shown in FIG. 3.
4C is an enlarged view of a region of the coupling member and the light source unit of FIG. 3.
5 and 6 illustrate perspective views of a light source unit according to an embodiment.
7 and 8 illustrate exploded perspective views of a light source unit according to an embodiment.
9A is an exploded perspective view of a body part of the lighting apparatus according to the embodiment.
9B is an exploded cross-sectional view of a body part of the lighting apparatus according to the embodiment.
9C illustrates a cross-sectional view of a plurality of bodies in accordance with an embodiment.
10 is an exploded perspective view of a connection member and a body of the lighting apparatus according to the embodiment.
11 shows a cross-sectional view of a lighting device according to a variant.
12 shows an exploded perspective view of a lighting apparatus according to a modification.
13 shows a cross-sectional view of a lighting device according to another modification.
14 shows an exploded perspective view of a lighting apparatus according to another modification.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

In addition, the reference to the top or bottom of each component will be described with reference to the drawings. In the drawings, the thickness or size of each layer is exaggerated, omitted, or schematically illustrated for convenience and clarity. In addition, the size of each component does not necessarily reflect the actual size.

In the description of embodiments according to the present invention, it is to be understood that where an element is described as being formed "on or under" another element, On or under includes both the two elements being directly in direct contact with each other or one or more other elements being indirectly formed between the two elements. In addition, when expressed as "on" or "under", it may include the meaning of the downward direction as well as the upward direction based on one element.

[Example]

1 is a perspective view of a lighting device 1 according to an embodiment. 2 is an exploded perspective view of the lighting apparatus 1 according to the embodiment. 3 is a cross-sectional view of the lighting device 1 according to the embodiment. 4A is an exploded perspective view of the housing, the reflector, and the coupling member of FIG. 3. 4B is an exploded perspective view of the coupling member shown in FIG. 3. 4B is an enlarged view of an area of the coupling member and the light source unit of FIG. 3.

1 to 4C, the lighting apparatus 1 according to the embodiment includes a housing 100, a coupling member 110, a reflector 200, a light source 300, and a power driver 400.

1. Housing 100 and coupling member 110

The housing 100 may be formed in the form of a box that can accommodate the coupling member 110 and the reflector 200. The shape of the housing 100 may be rectangular when viewed from the outside, but is not limited thereto and may have various shapes.

The housing 100 may be formed of a material capable of effectively dissipating heat. For example, the housing 100 may be made of aluminum (Al), tin (Sn), nickel (Ni), silver (Ag), copper (Cu), titanium (Ti), molybdenum (Mo), tungsten (W), and gold. It may be formed of a metal such as (Au), platinum (Pt).

Holes 107 may be formed in the side and / or top surface of the housing 100 to electrically connect the power driver 400 to an external power source. The power driver 400 electrically connected to an external power source to control and adjust the electrical supply of the light source unit 300 may be disposed on the side and / or the top surface of the housing 100.

The housing 100 has an opening 101 so that light emitted from the light source 300 can be reflected by the reflector 200 and emitted.

On the other hand, when the lighting device 1 is installed on an external support member such as a ceiling or a wall surface, an insertion portion corresponding to the shape of the lighting device 1 is formed on the external support member, and the lighting device 1 is inserted into the insertion portion. And fixed.

The coupling member 110 may be coupled to an upper surface of the inner side of the housing 100. The coupling member 110 may be coupled to the housing 100 in various ways. For example, the coupling member 110 may be coupled to the housing 100 by coupling screws, adhesives, or the like.

Coupling member 110 may be formed to extend in the first direction on the upper surface of the housing 100. For example, the coupling member 110 may be formed to extend from one inner wall surface of the housing 100 to the opposite inner wall surface.

The reflector 200 is disposed inside the housing 100 and has a first side 210 that is fastened to the side of the housing 100 and a second side 220 that is fastened to the side of the coupling member 110.

The first groove 111 may be formed on the outer wall surface of the coupling member 110. The first groove 111 may be formed to extend in the first direction. The second side 220 of the reflector 200 may be inserted into the first groove 111.

The housing 100 and the coupling member 110 may be formed so that the reflector 200 can be detached.

A second groove 103 may be formed in the inner wall surface of the housing 100 into which the first side 210 of the reflector 200 can be inserted. The second groove 103 may be formed in one piece, or may be formed in plural.

The first side 210 of the reflector 200 is inserted into the second groove 103 of the housing 100, and the second side 220 of the reflector is inserted into the first groove 111 of the coupling member 110. As a result, the housing 100 and the coupling member 110 may fix and support the reflector 200.

In addition, the coupling member 110 may be formed so that the light source unit 300 is detachable.

Insertion grooves 112 may be formed in the middle portion of the coupling member 110. A portion of the light source unit 300 may be inserted into the insertion groove 112. Insertion groove 112 may be formed to extend in the first direction.

The third groove 113 may be formed on the inner wall surface of the insertion groove 112. The connection member 340 of the light source unit 300 may be inserted into the third groove 113. Accordingly, the third groove 113 may firmly couple the light source unit 300 to the coupling member 110. More detailed description of the coupling relationship between the light source unit 300 and the coupling member 110 will be described later.

The first connection terminal 120 may be formed in the middle portion of the insertion groove 112. When the light source unit 300 is inserted into the insertion groove 112, the first connection terminal 120 may be coupled to and electrically connected to the second connection terminal 330 of the light source unit 300. When the first connection terminal 120 and the second connection terminal 330 are connected, power and / or driving signals may be transmitted to the light source unit 300 through the first connection terminal 120 and the second connection terminal 330. Can be.

One or more first connection terminals 120 may be formed according to the design of the lighting device 1. A more detailed description of the first connection terminal 120 will be described later along with a detailed description of the second connection terminal 330.

In addition, the coupling member 110 may serve to directly discharge heat generated from the light source unit 300 or to the housing 100.

Coupling member 110 is preferably formed of a material that can effectively release and / or transfer heat. For example, the coupling member 110 may include aluminum (Al), tin (Sn), nickel (Ni), silver (Ag), copper (Cu), titanium (Ti), molybdenum (Mo), tungsten (W), It may be formed of a metal such as gold (Au), platinum (Pt).

2. Reflector 200

The reflector 200 may include a first reflector 200a and a second reflector 200b. The first reflector 200a and the second reflector 200b may be coupled to and separated from the housing 100 and the coupling member 110.

For example, when the second reflector 200b is coupled to the housing 100 and the coupling member 110, as shown in FIG. 2, the second side 220 of the second reflector 200b is coupled to the coupling member. It may be inserted into the first groove 111 of the 110, and may be coupled by inserting the first side 210 into the second groove 103 of the housing 100.

The second side 220 of the reflector 200 may be formed to have a step. The first side 210 of the reflector 200 may also be formed to have a step. In addition, one or more insertion ends may be formed on the first side 210. At least one insertion end that may be inserted into the second groove 103 may be formed at the first side 210 of the reflector 200. The second groove 103 may be formed to correspond to the shape of the insertion end.

The first reflector 200a and the second reflector 200b may have a parabolic surface and may be formed to extend in the first direction. Accordingly, the first reflector 200a and the second reflector 200b may form a parabola having two parabolic surfaces. However, the shape of the reflector 200 may be variously modified according to the desired illumination.

The reflector 200 may be formed of a metal material or a resin material having high reflection efficiency. For example, the resin material may include any one of PET, PC, and PVC resin. In addition, the metal material may include at least one of silver (Ag), an alloy including silver (Ag), an alloy including aluminum (Al), and aluminum (Al).

The surface of the reflector 200 may be coated with silver (Ag), aluminum (Al), white photo solder resist (PSR) ink, a diffusion sheet, or the like, or an oxide film may be formed by anodizing.

However, the material and the color of the reflector 200 are not limited, and this may be variously selected according to the lighting to be implemented by the lighting device 1.

3. Power drive unit 400

The power driver 400 may provide at least one of a power source and a driving signal when the power driver 400 is connected to the light source unit 300.

2 and 3, the power driver 400 may be installed on a space provided between the inner surface of the housing 100 and the parabolic reflector 200. That is, an empty space is formed between the reflector 200 and the corner portion of the housing 100 by the parabolic shape of the reflector 200, and the power driver 400 may be installed on the empty space.

The power driver 400 may convert AC power input from the outside into DC power and output the DC power.

The power driver 400 may be electrically connected to the light source 300 by a wire or a flexible printed circuit board (FPCB). For example, the wire or FPCB extends from the power driver 400, and is electrically connected to the first connection terminal 120 through a connection hole formed in the coupling member 110. By being electrically connected to the two connection terminals 330, the power source driving unit 400 and the light source unit 300 may be electrically connected.

4. Light source 300

The lighting device 1 includes a light source unit 300. The light source unit 300 may be disposed at the inner center of the housing 100 as shown in FIG. 1. In addition, the light source 300 may be detachably coupled to the coupling member 110.

5 and 6 are perspective views of the light source unit 300 according to the embodiment. 7 and 8 are exploded perspective views of the light source unit 300 according to the embodiment. 9A is an exploded perspective view of a body part of the lighting apparatus according to the embodiment. 9B is an exploded cross-sectional view of a body part of the lighting apparatus according to the embodiment. 9C is a cross-sectional view of a plurality of bodies of the lighting apparatus according to the embodiment. 10 is an exploded perspective view of a connection member and a body of the lighting apparatus according to the embodiment.

5 to 10, the light source 300 according to the embodiment includes a first body 310a, a second body 310b, a first light emitting module 320a, a second light emitting module 320b, and a second light source. And a connection terminal 330, a connection member 340, a protective cover 360, and an optical cover 380.

The first body 310a and the second body 310b have the same shape and form a body portion of the light source unit 300. The light source unit 300 may be formed to extend in the first direction, that is, along the longitudinal direction of the reflector 200.

1) First Body 310a and Second Body 310b

The light source unit 300 includes a first body 310a and a second body 310b on which the first light emitting module 320a and the second light emitting module 320b may be disposed, and include the first body 310a and the first body. The two bodies 310b may be referred to as body portions or light source bodies.

The first body 310a and the second body 310b may be shaped as shown in FIGS. 7 to 9. Since the first body 310a and the second body 310b have the same shape, the shape will be described below with reference to the first body 310a.

As shown in FIG. 9A, the first body 310a may be in the form of a linear beam extending along the first axis 33 from one surface 31 to the other surface 32. The first axis can be arbitrarily selected as one of the straight lines parallel to the illumination plane of the illumination device 1.

FIG. 9B is a cross-sectional view of the first body 310a of FIG. 9A cut in a plane perpendicular to the first axis. The cross section of the first body 310a includes a first protrusion 311 protruding outwardly from the top of both sides, a second protrusion 314 protruding outwardly from the bottom of both sides, and downward from both ends of the bottom surface thereof. The protrusion 317 may have a protrusion 317.

According to this cross sectional view, the lower surface protrusion 317 is disposed parallel to the first axis at both ends of the lower surface of the first body 310a. In addition, a flat mounting surface 313 may be disposed between the lower protrusions 317 so that the first light emitting module 320a is disposed.

As shown in FIG. 9B, the first body 310a may have a symmetrical shape, and thus, a member such as the first body 310a may be used without distinction between left and right. The left side and the right side of the first body 310a may have a second protrusion 314 so that the optical cover 380 can be caught.

In order for the optical cover 380 to be more stably coupled to the first body 310a, the second protrusion 314 may be inclined to be closer to the upper surface of the first body 310a in the outward direction.

In addition, the left side and the right side of the first body 310a may have side grooves 312 between the first protrusion 311 and the second protrusion 314. When the first body 310a and the second body 310b are arranged side by side to face each other, the side grooves 312 are wires connected from the first light emitting module 320a and the second light emitting module 320b. It functions as an electrical connection passage through which

9C shows a cross section when the side surfaces of the plurality of bodies are arranged to face each other. As shown in FIG. 9C, a wire passage 319 may be formed between the plurality of bodies by the first protrusion 311 and the second protrusion 314.

Wires connected from the first light emitting module 320a and the second light emitting module 320b to receive a power supply from an external power source may be disposed in the wire passage 319 to be connected to the second connection terminal 330.

The first protrusion 311 disposed on the upper surface of the body portion secures a passage through which the wire can be connected to the second connection terminal 330 disposed on the upper surface of the first body 310a and the second body 310b. To be shorter than the second protrusion 314 may be formed.

Since the first protrusion 311 protrudes lower than the second protrusion 314, the first body 310a and the second body 310b are disposed side by side to form a gap between the first body 310a and the second body 310b. Even when the second protrusions 314 are in contact with each other, the first protrusions 311 between the first body 310a and the second body 310b are not in contact with each other, but are spaced apart by a predetermined distance.

The lower surface of the first body 310a has a mounting surface 313 on which the first light emitting module 320a may be mounted. On the seating surface 313, a substrate may be installed, and a plurality of light emitting diodes may be installed on the substrate, and the plurality of light emitting diodes may be connected to a power supply by the substrate.

The plurality of light emitting diodes may be selected to have various combinations, for example, among red, green, blue or white light emitting diodes emitting red, green, blue or white light. In addition, the plurality of light emitting diodes may be arranged in an array form.

In addition, an optical structure may be disposed on the plurality of light emitting diodes to adjust light distribution and color of light emitted from the plurality of light emitting diodes, and to implement emotional lighting having various luminance and colors as necessary.

The seating surface 313 of the first body 310a has a plurality of 318 spaced apart at predetermined intervals, and the first light emitting module 320a also has a tab hole 318 of the seating surface 313 of the first body 310a. Has a screw hole corresponding to the position of. In addition, a thread for screwing may be formed in at least a portion of the tab hole 318.

Accordingly, the screw passes through the screw hole of the first light emitting module 320a to be coupled to the tap hole 318 of the first body 310a, and the first light emitting module 320a is mounted on the seating surface of the first body 310a. 313 may be fixed.

In addition, the both ends of the lower surface of the first body 310a is disposed inwardly engaging the jaw 315, the side surface of the protective cover 360 is fitted to the locking jaw 315, so that the protective cover 360 is the first To be fixed to the body 310a.

The first body 310a also functions as a heat sink, and the lower surface of the first body 310a becomes a contact surface for receiving heat generated from the first light emitting module 320a.

The upper surface of the first body 310a has a connecting groove 316 connected from one end to the other end of the first body 310a. The upper portion of the connection groove 316 may be formed in a form corresponding to the connection portion 342 of the connection member 340 so that the connection member 340 is fitted. In addition, the lower portion of the connecting groove 316 has a thread, so that the first body 310a can be directly connected to the housing 100 through a screw or the like.

The connecting groove 316 of the upper surface of the first body 310a is formed to extend from one end to the other end of the first body 310a, thereby reducing the weight and manufacturing cost of the first body 310a, and connecting member as necessary. The position at which the 340 is attached to the first body 310a may be freely selected, and even if the first body 310a is directly coupled to the housing 100 through a screw or the like, the position of the screw coupling may be freely selected. To help.

On the other hand, as described above, the lower surface of the first body 310a is provided with a tab hole 318 in which grooves are not continuously connected, which is the first light emitting module 320a so that the first body 310a functions as a heat sink efficiently. ) To increase the contact area with.

Therefore, a plurality of tab holes 318 spaced apart from each other are formed on the lower surface of the first body 310a, and the connection groove 316 extending from one end to the other end of the first body 310a on the upper surface of the first body 310a. Can be formed.

The upper surface of the first body 310a has a first surface 30 directly connected to the connecting groove 316 and a second surface 35 extending outwardly of the first body 310a from the first surface 30. May have

When the distance from the lower surface to the upper surface of the first body 310a is to be increased, the height is lower as the first surface 30 is closer to the connecting groove, and the second surface 35 is horizontal so that the height is constant. Can be deployed.

When the upper surface of the first body 310a is horizontal, when the first body 310a is screwed to the inner upper surface of the housing 100 through the connecting groove 316, only the portion with the connecting groove 316 The inner upper surface of the housing 100 is in intimate contact, and the outer portion of the upper surface may not be in intimate contact with the inner upper surface of the housing 100.

However, when the first surface 30 of the upper surface of the first body 310a is closer to the connecting groove 316, the height is lower, and the second surface 35 is horizontally arranged so that the height is constant, As the first surface 30 on which the connecting groove 316 is disposed is intimately contacted with the inner upper surface of the housing 100, the second surface 35, which is an outer portion of the upper surface, is also tightened. It is in intimate contact with the inner upper surface. As a result, the contact area between the housing 100 and the first body 310a becomes larger, and thus an advantageous effect can be obtained.

2) Connecting member 340 and coupling cap (350)

The connection member 340 is disposed in the connection groove 316 of the upper surface of the first body 310a and the second body 310b, and is caught and fixed in the third groove 113 of the coupling member 110, thereby providing a light source unit ( It serves to bind 300 to the coupling member (110).

The connecting member 340 has a connecting portion 342 having a shape corresponding to the upper portion of the connecting groove 316 to be coupled to the connecting groove 316 of the first body 310a and the second body 310b, the coupling member The engaging jaw 344 is provided to be caught and fixed to the third groove 113 of the 110.

The connection member 340 may be fitted to the upper portion of the connection groove 316 of the first body 310a and the second body 310b and coupled by sliding. Since the connection grooves 316 of the first body 310a and the second body 310b are connected to each other in a straight line, the connection member 340 slides in a state of being fitted into the connection groove 316, and the first body 310a is connected. And a desired position of the upper surface of the second body 320b.

In addition, a spring 370 may be disposed between the vertical surfaces of the connection member 340. For example, the spring 370 may be an open '-' shape as shown in FIGS. 7 and 8, the vertical surface of the connecting member 340, the first body 310a and the second body 310b. It may be arranged to contact the upper surface of the).

The spring 370 may firmly couple the light source unit 300 to the insertion groove 112 of the coupling member 110 by providing an elastic force to the vertical surface of the connection member 340. The spring 370 may provide an elastic force to the vertical surface of the connecting member 340 in a direction away from the vertical surface of the connecting member 340.

That is, the spring 370 serves to push the vertical surface of the connecting member 340. Therefore, when the light source unit 300 is inserted into the coupling member 110, the connection member 340 coupled to the upper surfaces of the first body 310a and the second body 310b is applied by the spring 370. By the force, it can be firmly coupled to the third groove 113 of the coupling member (110).

Heat generated in the plurality of light emitting diodes is emitted by the body of the light source unit 300 or is coupled to the coupling member 340 through the connecting member 340 connecting the coupling member 110 with the first body 310a and the second body 310b. It can be delivered to 110 and released. Accordingly, the first body 310a and the second body 310b are preferably formed of a material capable of effectively dissipating heat.

For example, aluminum (Al), tin (Sn), nickel (Ni), silver (Ag), copper (Cu), titanium (Ti), molybdenum (Mo), tungsten (W), gold (Au), platinum It may be formed of a metal such as (Pt). In addition, irregularities are formed in a portion of the body of the light source unit 300, thereby effectively dissipating heat.

The first body 310a and the second body 310b may be coupled to each other by coupling the coupling cap 350 to one end thereof.

As shown in FIG. 9, first grooves 361 may be formed on one side surfaces of the first body 310a and the second body.

7 and 8, the coupling cap 350 may be formed with a through hole 355 disposed at a position corresponding to the first groove 361. The screws pass through the through hole 355 of the coupling cap 350 to be coupled to the first groove 361, whereby the coupling cap 350 is disposed on at least one side of the first body 310a and the second body 310b. It is fixed, and the first body 310a and the second body 310b may be coupled to each other.

3) the first connector 120 and the second connector 330

As shown in FIGS. 4B and 4C, a first connection terminal 120 for electrical connection with the light source unit 300 may be disposed at the central portion of the coupling member 110. The first connection terminal 120 may be electrically connected to the power driver 400 through a wire.

In addition, as illustrated in FIGS. 7 and 8, the second connection terminal 330 may be disposed on the first body 310a and the second body 310b for electrical supply to the light source unit 300.

The wire connected to the first light emitting module 320a and the wire connected to the second light emitting module 320b pass through the space between the first body 310a and the second body 310b, and thus, the first body 310a and the first light emitting module 320a. It may be connected to the second connection terminal 330 disposed in the center of the upper surface of the second body (310b).

As such, the space formed between the side grooves 312 of the first body 310a and the side grooves 312 of the second body 310b provides a space in which the wires can be placed, thereby providing an arrangement of the wires for electrical connection. To facilitate.

When the light source unit 300 is inserted into the coupling member 110, the second connection terminal 330 is coupled with the first connection terminal 120 formed in the space of the insertion groove 112 of the coupling member 110. 300 may be electrically connected.

Accordingly, the power driver 400 may provide a power source and / or a driving signal to the light source unit 300 through the first connection terminal 120 and the second connection terminal 330.

The first connection terminal 120 and the second connection terminal 330 may be a D-Sub connector, and if the first connection terminal 120 has a pin, the second connection terminal 330 has a hole, and the first connection When the terminal 120 has a hole, the second connection terminal 330 may have a pin so that the first connection terminal 120 and the second connection terminal 330 may be electrically and physically connected to each other.

4) Optical Covers (380)

Optical cover 380 is coupled to the side of the body portion consisting of the first body (310a) and the second body (310b), may be disposed below the first body (310a) and the second body (310b), the optical It can function as a member.

The optical cover 380 is a lower surface facing the direction in which the light of the first light emitting module 320a and the second light emitting module 320b disposed on the lower surfaces of the first body 310a and the second body 310b. The first surface 383 and the body portion and the first surface 383 may be connected to each other, and may include a second surface 386 that is a side facing the reflector 200.

An inwardly engaging portion 388 may be disposed at an upper end of the second surface 386 of the optical cover 380. The locking portion 388 may be disposed on the second protrusion 314 protruding from the side surfaces of the first body 310a and the second body 310b to allow the optical cover 380 to be coupled to the body portion.

At least a portion of the light emitted from the first light emitting module 320a and the second light emitting module 320b may be reflected by the first surface 383 of the optical cover 380 to pass through the second surface 386. Light passing through the second surface 386 is reflected by the reflector 200 and is emitted to the bottom of the housing 100.

The transmittance of the second face 386 may be higher than the transmittance of the first face 383. Transmittance of the second side 386 must be high so that some light reflected from the first side 383 can pass through the second side 386 and be irradiated to the reflector 200.

The degree to which the transmittance of the second face 386 should be higher than the transmittance of the first face 383 can be arbitrarily selected, with some light reflected on the first face 383 and such light on the second face 386. This may be transmitted and irradiated to the reflector 200.

In addition, the projections 387 are disposed on the second surface 386 so that the light passing through the second surface 386 can be evenly diffused. The light scattered through the projections 387 is evenly irradiated onto the reflector 200 so that uniform light can be emitted to the outside of the lighting device 1.

That is, the light emitted from the first light emitting module 320a and the second light emitting module 320b passes through the first surface 383 of the optical cover 380 to illuminate the illumination area as direct light, and at the same time, the optical cover 380. It is possible to shine indirect light into the illumination area through the reflection from the first face 383 and the reflector 200. In this way, the illuminating device 1 can provide indirect light while providing direct light.

An extension portion 389 extending from the first surface 383 and protruding from the first surface 383 may be disposed at a portion where the first surface 383 and the second surface 386 meet. The extension 389 can be used as a handle for bending the optical cover 380 to the body portion, so that the projection 387 of the second side 386 is invisible to the users under the lighting device 1. Can function. For this function, the extension 389 may protrude higher than the projection 387 to cover the projection 387 from the user's field of view.

Meanwhile, the protective cover 360 may be disposed between the body portion and the optical cover 380. The protective cover 360 may protect the first light emitting module 320a and the second light emitting module 320b from moisture that may be introduced into the light source unit 300.

The protective cover 360 may also function as an optical member, and may perform a function of uniformly dispersing light emitted from the first light emitting module 320a and the second light emitting module 320b.

The protective cover 360 and / or the optical cover 380 may include at least one of a lens, a diffusion sheet, and a phosphor luminescent film (PLF). The lens may include lenses having various shapes, such as a concave lens, a convex lens, and a condenser lens, depending on the design of the lighting device.

The diffusion sheet may evenly diffuse the light emitted from the plurality of light emitting diodes 312.

The photoexcited film (PLF) may be a film including a phosphor. Since the phosphor contained in the photoexcited film (PLF) is excited by the light emitted from the first light emitting module 320a and the second light emitting module 320b, the illumination device is the first light emitting module 320a and the second light emitting module. The first light emitted from the 320b and the second light excited by the phosphor may be mixed to implement emotional lighting having various colors.

For example, when the first light emitting module 320a and the second light emitting module 320b emit blue light, and the photoexcited film PLF includes a yellow phosphor excited by blue light, the illumination device is blue. Light and yellow light may be mixed to emit white light.

The protective cover 360 and / or the optical cover 380 may be easily replaced with any one of a lens, a diffusion sheet, and an optical excitation film according to a user's needs.

5. Desorption of the light source unit 300 and the coupling member 110

1) Combined process

The light source unit 300 may be coupled to the coupling member 110 to be detachable.

First, a first force F is applied to the connection member 340 disposed on the first body 310a and the second body 310b of the light source unit 300 to narrow the width between the connection members 340. . In this case, the first force F may be opposite to the direction of the elastic force applied by the spring 370.

When the first force F is not applied, the connecting member 340 is separated from each other by the elastic force provided from the spring 370, so that the light source 300 is inserted into the insertion groove 112 of the coupling member 110. Hard to insert into

While applying the first force F to the connection member 340, the light source unit 300 is inserted into the insertion groove 112 of the coupling member 110. After the coupling member 110 is inserted into the insertion groove 112, if the first force (F) is not applied, the distance between the connecting member 340 is further separated by the elastic force, the connection of the upper end of the light source 300 The engaging jaw 344 of the member 340 may be inserted into the third groove 113 formed in the inner surface of the insertion groove 112. Accordingly, the light source unit 300 may be coupled to the coupling member 110.

In addition, after the light source unit 300 is coupled to the coupling member 110, the spring 370 disposed between the coupling member 340 pushes the first body 310a and the second body 310b to each other, The connection member 340 may be more firmly coupled to the third groove 113.

In addition, a uniform pressure is continuously applied to the contact surface between the connection member 340 and the insertion groove 112 by the spring 370. Accordingly, heat generated from the light source 300 may be more efficiently conducted through the contact surface of the connection member 340 and the coupling member 110.

2) Separation Process

When maintenance of the light source unit 300 is required, the light source unit 300 may be separated from the coupling member 110.

When the light source unit 300 is separated from the coupling member 110, after the first force F is applied to the coupling member 340 to decrease the width between the coupling members 340, the light source unit 300 is coupled to the coupling member 110. Separate from (110).

[Modification]

11 is a cross-sectional view of a lighting device 2 according to a modification, and FIG. 12 is an exploded perspective view of the lighting device 2 according to a modification.

In the description of the lighting device 2 according to one modification, the content overlapping with the above description will be omitted.

11 and 12, the lighting device 2 includes a housing 500, a body portion 700 coupled to the housing, a reflector 600 and a body disposed between the housing 500 and the body portion 700. It may include a protective cover 730 and the optical cover 740 coupled to the lower portion of the portion 700.

The inner surface of the housing 500 may be coated with a reflective material, so that the inner surface of the housing 500 may perform the function of the reflector 600 instead of the reflector 600 is disposed.

The clip 510 is disposed on the inner upper surface of the housing 500 of the lighting device 2. The clip 510 can be coupled to the housing 500 in a variety of ways. For example, the clip 510 can be coupled to the housing 500 by coupling screws, adhesives, or the like.

The clip 510 has an opening through which the body portion 700 can be inserted, and has extension jaws at one side thereof so that one side of the reflector 600 can be coupled. The body portion 700 is inserted into the opening of the clip 510 and fitted to the clip 510, thereby being coupled to the housing 500.

The body portion 700 of the modified example may have the same shape as the first body 310a or the second body 310b of the embodiment.

The light emitting module 710 may be disposed on the bottom surface of the body portion 700, and a protective cap 720 may be coupled to the side surface of the body portion. A protective cover 730 and an optical cover 740 may be disposed below the body portion 700.

11 and 12 illustrate a case in which the clips 510 are arranged in one line and the body 700 is one, the clip 510 is arranged in a plurality of lines and the body 700 is plural. Can be implemented.

A part of the light emitted from the light emitting module 710 is irradiated with direct light by the lower surface 743 of the optical cover 740, the other part is reflected from the lower surface 743 of the optical cover 740, the optical cover 740 Pass the side 746 of the. Light passing through the side surface 746 of the optical cover 740 is reflected by the reflector 600 is irradiated with indirect light.

FIG. 13 is a sectional view of a lighting device 3 according to another modification, and FIG. 14 is an exploded perspective view of the lighting device 3 according to another modification.

13 and 14, an upper surface hole 810 is disposed on an inner upper surface of the housing 800 of the lighting device 3.

Each light source body unit of the body portion 1000 of another modified example may have the same shape as the first body 310a or the second body 310b of the embodiment. 13 and 14, the body portion 1000 is formed by connecting two light source body units, but the number of light source body units is not limited thereto, and a plurality of light source body units may be connected.

A connection groove 1016 extending from one end to the other end of the body part 1000 may be disposed on an upper surface of the body part 1000, and a thread may be formed below the connection groove 1016.

The upper surface of the body portion 1000 is disposed on the inner upper surface of the housing 800 so as to correspond to the upper hole 810 of the housing 800, and a screw penetrates through the upper hole 810 of the housing 800 to allow the body portion ( By being coupled to the connection groove 1016 of the 1000, the body portion 1000 can be fixed to the inner upper surface of the housing (800).

Coupling the body portion 1000 and the housing 800 through the screw coupling allows the body portion 1000 to be tightly coupled to the housing 800, thereby increasing the conductivity for dissipating heat from the body portion 1000. have.

The light emitting module 1010 may be disposed on a bottom surface of the body portion 1000, and a protective cap 1020 may be coupled to a side surface of the body portion. A protective cover 1030 and an optical cover 1040 may be disposed below the body portion 1000.

The optical cover 1040 may include a lower surface 1043 facing the light emitting direction of the light emitting module 1010 and a side surface 1046 facing the inner surface of the housing 800.

A part of the light emitted from the light emitting module 1010 is irradiated with direct light by the lower surface 1043 of the optical cover 1040, the other part is reflected from the lower surface 1043 of the optical cover 1040, the optical cover 1040 Pass through the side 1046. Light passing through the side surface 1046 of the optical cover 1040 is reflected by the reflector 900 is irradiated with indirect light.

As described above, those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features.

Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the following claims rather than the above description, and the meaning and scope of the claims And all changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

100, 500, 800: housing
110: coupling member
120: first connection terminal
200, 600, 900: reflector
300: light source
310a: first body
310b: second body
330: second connection terminal
400: power drive unit

Claims (14)

if; And
Including a side surface disposed at an acute angle with the lower surface,
Transmittance of the side surface is higher than that of the lower surface,
Protrusions are arranged on the side surfaces,
At least a portion of the light irradiated to the lower surface is reflected to pass through the side,
Optical member. The method of claim 1,
In a portion where the lower surface meets the side, further comprising an extension extending from the lower surface protrudes,
Optical member. The method of claim 2,
The extension protrudes longer than the protrusion,
Optical member. The method of claim 1,
Further comprising an inwardly engaging portion disposed on the top of the side,
Optical member. housing;
A coupling member coupled to the inside of the housing;
At least one reflector disposed between the housing and the coupling member; And
A light source unit detachably coupled to the coupling member;
The light source unit includes:
A light source body on which a light emitting module is disposed;
A connection member disposed on an upper surface of the light source body and coupled to the coupling member; And
Comprising the optical member of any one of claims 1 to 4 coupled to the light source body,
Lighting device. housing;
A light source body disposed inside the housing;
One or more reflectors disposed between the housing and the light source body;
A light emitting module disposed on a bottom surface of the light source body; And
Comprising the optical member of any one of claims 1 to 4 coupled to the light source body,
Lighting device. housing;
A light source body disposed on an inner upper surface of the housing;
A reflector disposed between the light source body and the housing;
A light emitting module disposed on a bottom surface of the light source body; And
An optical member coupled to the light source body and disposed to cover the light emitting module;
Wherein the optical member comprises:
if; And
Including a side surface disposed at an acute angle with the lower surface,
At least a part of the light emitted from the light emitting module unit irradiated to the bottom surface is reflected, and is transmitted by the side surface and reflected by the reflector,
Lighting device. housing;
A coupling member coupled to the inside of the housing;
At least one reflector disposed between the housing and the coupling member;
A light source body connected to the coupling member and having a light emitting module disposed on a bottom surface thereof; And
An optical member coupled to the light source body,
Wherein the optical member comprises:
if; And
Including a side surface disposed at an acute angle with the lower surface,
At least a part of the light of the light emitting module irradiated to the bottom surface is reflected, and is transmitted by the side surface and reflected by the reflector,
Lighting device. 9. The method according to claim 7 or 8,
The transmittance of the side surface is higher than the transmittance of the lower surface,
Lighting device. 9. The method according to claim 7 or 8,
The projection is disposed on the side,
Lighting device. 11. The method of claim 10,
The optical member further includes an extension part extending from the bottom surface to protrude from a portion where the bottom surface meets the side surface.
Lighting device. The method of claim 11,
The extension protrudes longer than the protrusion,
Lighting device. 9. The method according to claim 7 or 8,
The optical member further comprises an inwardly engaging portion disposed on the top of the side,
Lighting device. The method of claim 13,
The light source body has a protrusion on the side,
The locking portion is disposed on the protrusion of the light source body,
Lighting device.

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