KR101248155B1 - Lighting instruments - Google Patents

Abstract

PURPOSE: An embedded lighting device is provided to prevent damage due to a tool by replacing a reflector with only the hand instead of a separate tool. CONSTITUTION: An LED module(120) is connected to an embedded housing(110). A connector(130) connects the LED module to the embedded housing. A bracket(140) fixes the embedded housing to the bottom of a ceiling. A reflector(200) includes a top side and a bottom side which are opened. The reflector is attached to or detached from the embedded housing.

Description

Lighting instruments

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buried light fixture, which includes a reflector in which a light fixture is embedded in a ceiling.

In general, lighting fixtures are attached to walls or ceilings of the interior and exterior to illuminate the darkness, and are used as architectural elements as part of the building space.In interior architecture, they are also used as accessories to match the interior atmosphere. In order to achieve this purpose, various kinds of lighting devices are used depending on the usage and structural form.

Among them, recently, there are lighting fixtures that create a beautiful and fantastic atmosphere through lighting on the exterior or interior space of building structures, and most of these lighting fixtures are embedded in ceilings and walls so that the main body is not exposed to the outside. In order to keep the installation area clean and to have various lamps and reflectors, embedded light fixtures are being used to emit lamp light in various directions and angles.

1 is a view showing a buried luminaire consisting of an LED lamp and a reflector.

When using a reflector having a small curvature as shown in FIG. 1 (a), the light distribution angle range will be widened, and the light emitted from the LED lamp will spread widely. Also, when using a reflector having a large curvature as shown in FIG. The narrower range will narrow the light emitted by the LED lamps.

By the way, in the case of the conventional embedded lighting fixtures, the LED lamp and the reflector are integrated, and in order to change the light distribution angle range of the lamp, there is a problem that the entire embedded lighting fixture needs to be replaced. For example, the lighting fixture has a light distribution angle range of 70 °, but in order to have a light distribution angle of 45 °, there is a problem in that the entire embedded lighting fixture needs to be replaced. This is not only a waste of resources in terms of resource reuse, but also has the inconvenience of burying the lighting fixtures on the ceiling again.

Korea Patent Publication 10-2011-0087012

The technical problem of the present invention is to be able to vary the distribution range of light distribution without replacing the entire lighting fixture. In addition, the technical problem of the present invention is to be able to change the distribution range of light distribution simply by a human hand without using additional tools. In addition, the technical problem of the present invention is to prevent damage to the appearance of the lighting fixture by the tool when changing the light distribution range.

Embodiments of the present invention include a buried housing inserted into a buried groove of a ceiling, an LED module connected to the buried housing, a connector connecting the LED module and the buried housing to each other, and a buried housing buried in a buried groove of the ceiling. A bracket for fixing the lamp to the floor of the ceiling, and a horn body having an upper and a lower part, the reflector being detachable from the buried housing so that the light emitting surface of the LED module is positioned on the upper opening of the horn body and emits light through the lower opening. do.

In addition, the LED module includes a PCB board equipped with a plurality of LEDs, a diffusion cover attached to the PCB board to uniformly spread the light emitted from the LED, and a heat sink for dissipating heat generated from the LED to the outside. do.

The buried housing further includes a ring body having a rim shape having a thickness, and a vertical protrusion formed to protrude vertically along the inner diameter of the ring body.

The reflector also includes an open upper opening surface, an open lower opening surface, sidewalls connecting the upper opening surface and the lower opening surface, and detachable means for resiliently detachable from the vertical protrusion of the buried housing. . The lower opening face also has a flange face extending horizontally along the edge of the lower opening face.

In addition, the detachable means, the frame surrounding the side wall, and a locking body protruding from the frame having a stepped surface and a guide surface of the 'b' structure, the stepped surface of the locking body to the vertical protrusions To be attached to the buried housing.

In addition, the inclination of the stepped surface inclined to protrude from the rim has a larger obtuse angle than the horizontal angle of the flange surface protruded horizontally from the lower opening surface.

According to the embodiment of the present invention, by replacing only the reflector, the distribution range of light distribution can be changed without removing the entire embedded lighting fixture from the ceiling. Therefore, it is possible to easily change the light distribution range of the lighting fixture because no replacement work is required. Therefore, the construction cost for changing the light distribution range can be reduced. In addition, by replacing the reflector with only a hand without a separate tool, it is possible to prevent damage to the lighting fixture by the tool.

1 is a view showing a change in the light distribution angle according to the curvature of the reflector in a buried luminaire consisting of an LED lamp and a reflector.
2 is a perspective view showing a buried light fixture according to an embodiment of the present invention.
3 is an exploded perspective view of a buried light fixture according to an embodiment of the present invention.
4 is an exploded cross-sectional view of the LED module according to the embodiment of the present invention.
5 is a diagram illustrating a state in which the reflector coupled to the buried housing is separated according to an embodiment of the present invention.
6, 7 and 8 are graphs showing a distribution range of light distribution according to curvature of an inner surface of a reflector sidewall according to an exemplary embodiment of the present invention.
9 is a graph showing a light distribution range after coating a white paint on an inner surface of a side wall of a reflector according to an embodiment of the present invention.
10 is a view showing a process of fastening the reflector to the buried housing according to an embodiment of the present invention.
11 is a view showing a state in which a honeycomb form is formed on the inner surface of the side wall of the reflector according to the embodiment of the present invention.
12 is a photograph of a buried luminaire to which various types of reflectors are coupled according to an embodiment of the present invention.
FIG. 13 shows a photograph of a product in which the reflector and the detaching means are integrally manufactured.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in more detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you. Wherein like reference numerals refer to like elements throughout.

2 is a perspective view showing a buried light fixture according to an embodiment of the present invention, Figure 3 is an exploded perspective view of a buried light fixture according to an embodiment of the present invention, Figure 4 is an LED module according to an embodiment of the present invention It is an exploded cross section.

The embedded lighting fixture refers to a lighting fixture that is embedded in the ceiling to illuminate the lower part of the ceiling, and the light emitted from the LED module is reflected by the reflector of the embedded lighting fixture and reflected by the lower part of the ceiling.

The buried light fixture according to the embodiment of the present invention includes a LED body 120, a buried housing 110, a buried body 100 including a connector 130, a bracket 140, and a reflector lamp reflecting light. It includes a reflector 200. The buried body 100 is a bracket for supporting the LED module 120 that emits light, a buried housing 110 inserted into the buried groove of the ceiling, and a buried housing buried in the buried groove of the ceiling on the bottom surface of the ceiling. 140 and a connector 130 connecting the LED module and the buried housing to each other. In addition, the reflector 200 is a horn body having an upper and lower openings, the light emitting surface of the LED module is located on the upper opening surface of the horn body, and the buried housing is located on the lower opening surface 250 to reflect the light of the light emitting surface below the ceiling. It is possible to detachable from the buried housing.

Embodiment of the present invention can be attached to and detached from the buried body 100 and the reflector 200 constituting the embedded lighting fixture with each other as a hand force without a separate tool. In order to change the light distribution range of the light emitted from the LED module 120, in the prior art, the embedded lighting fixtures had to be removed from the ceiling and completely replaced, but in the present invention, the light distribution distribution range is different without removing the embedded lighting fixtures from the ceiling. Only a simple task of replacing the reflector is needed. Hereinafter, each structural part of the embedded lighting fixture will be described in detail.

The LED module 120 is a light source that emits light using an LED lamp and has a heat sink and a PCB board on which a plurality of LEDs are mounted. The PCB substrate 122 having the plurality of LEDs 123 mounted thereon is coupled with the heat sink 121 and then receives driving power to emit light. In some cases, the PCB substrate 122 and the heat dissipation plate 121 on which the plurality of LEDs 122 are mounted have a structure of an LED module 120 that is integrated. The structure of the heat sink 121 may have a structure of various forms, such as a cylindrical, square pillar. In addition, the heat sink may be provided with a plurality of heat dissipation fins on the outer surface to efficiently discharge the heat generated from the light source to the outside as shown. In addition, the LED module has a diffusion cover 124 attached to the PCB substrate in the light emitting direction of the LED evenly spread the light emitted from the LED. By passing through the diffusion cover 124 it is possible to uniformize the light emitted from the LED module.

The buried housing 110 is a housing that is inserted into the buried groove of the ceiling. In the above, the buried groove of the ceiling refers to a groove that is dug into the ceiling so that the lighting fixture is buried. The buried housing 110 includes a ring body 112 having a rim shape having a predetermined thickness and a vertical protrusion 111 protruding vertically along the inner diameter of the ring body and contacting the sidewall of the buried groove.

The ring body 112 has an inner diameter equal to or smaller than the diameter of the buried groove and can be inserted into the buried groove. The ring body 112 has a predetermined thickness so that the thickness surface of the ring body is exposed at the bottom of the buried groove. In addition, the ring body 112 has a form corresponding to the shape of the buried groove to be embedded. If the ceiling recessed groove is a circular groove, the ring body 112 has a circular ring shape, and when the ceiling recessed groove is a square groove, the buried housing has a rectangular ring shape. The vertical protrusions 111 protrude vertically along the inner diameter of the ring body, so that when the buried housing is inserted into the buried grooves, the protruding surfaces of the vertical protrusions face the sidewalls of the buried grooves. When the reflector is assembled to the buried housing, the locking body 220 of the reflector 200 is caught on the upper end of the vertical protrusion 111.

The connector 130 is a bar bar connecting the LED module and the buried housing to each other, and the LED module is coupled to the buried housing by the connector. Connection may be implemented by coupling the LED module and the buried housing to one end and the other end of the connector, respectively. In addition, the connecting body may have a curved shape rather than a bar bar shape, and in some cases, the connecting body 130, the LED module 120, and the buried housing 110 may be integrally manufactured.

The bracket 140 serves to support and fix the buried housing buried in the buried groove of the ceiling to the bottom surface of the ceiling. The bracket 140 is used to fix the buried housing to the ceiling so that the buried housing does not fall after being buried in the buried groove of the ceiling. The bracket may be implemented in a variety of known ways, for example, the bracket 140 may be provided in the connecting body, the height of which is adjusted by tightening the screw is mainly used, the embedded housing is embedded in the buried groove and then screwed When tightening the bracket 140 connected to the bolt screw thread 141 also moves along the thread to lower the height position, the lower end of the lower bracket is applied to the ceiling bottom surface around the buried groove. By this pressing force, the buried housing can be fixed to the buried groove. In addition, the bracket for fixing the buried housing buried in the buried groove of the ceiling to the bottom surface of the ceiling may be a variety of ways.

Reflector 200 (reflecting shade) performs a function to reflect the light from the LED module, the reflector 200 is implemented to be easily removable detachable from the buried housing. To this end, the reflector 200 is a horn body having an upper and lower openings, and the light emitting surface 120a of the LED module is positioned on the upper opening surface 240 of the horn body so that the buried housing 100 emits light through the lower opening surface 250. To allow removal of the Therefore, the light of the LED module located in the upper opening surface 240 of the cone body may pass through the upper and lower portions of the cone body and emit light through the lower opening surface 250. The horn body with the upper and lower openings may be implemented in various forms such as a square pyramid and a triangular pyramid.

More specifically, the reflector 200 having a horn-shaped structure connects the opened upper opening surface 240, the opened lower opening surface 250, and the upper opening surface 240 and the lower opening surface 250. And a side wall 230 and a detachment means 210 and 220 for elastically detachable from the vertical protrusion 111 of the buried housing.

The detachable means allows the reflector 200 to be easily attached to or detached from the buried housing 100. For this purpose, the frame 210 surrounds the side wall, and the stepped surface of the 'A' structure protrudes from the frame. A locking body 220 having a 222 and a guide surface 221 is included, and the stepped surface 222 of the locking body is engaged with the buried housing 100 by being caught by the vertical protrusion 111. When the reflector 200 is inserted into the buried housing 100, the guide surface 221 of the locking body follows the wall surface of the vertical protrusion 111, and the stepped surface 222 positioned at the end of the guide surface has the The upper surface of the vertical protrusion 111 may be caught to fasten the reflector 200 to the buried housing 100. The angle between the step surface 222 and the guide surface 221 is implemented at an angle of less than 90 degrees, the locking body 220 is a plastic material such as polycarbonate or ABS resin (acrylonitrile-butadiene-styrene resin) It is made of elasticity. In addition, the locking body 220 may be formed on a part of the reflector 200 to be manufactured integrally.

On the other hand, in the state in which the reflector is coupled with the buried housing by the locking body 220 of the '-' structure, the bending angle of the stepped surface is not perpendicular to the reflector 200 so that the reflector 200 can be separated from the buried housing 100 with little force. Do not That is, the inclination of the stepped surface 222 protruding from the edge 210 may have a larger obtuse angle than the horizontal angle of the flange surface 112 protruding horizontally from the lower opening surface 250. Therefore, even if the obturator oblique inclination of the stepped surface is caught by the vertical protrusion 111 of the buried housing, even if the engaging body 220 of the reflector can be easily removed by pulling the reflector down by hand.

For reference, FIG. 5 is a diagram illustrating a state in which a reflector coupled to a buried housing is separated according to an exemplary embodiment of the present invention. In the state where the stepped surface of the engaging body 220 of the reflector is spread over the buried housing 110 as shown in FIG. 5 (a), when the inner surface of the reflector is pulled down using the palm, an obtuse angle larger than 90 degrees from the guide surface is shown. The stepped surface is easily slipped as shown in FIG. 5 (b), and the reflector is separated from the buried housing as shown in FIG. 5 (c).

On the other hand, the lower opening surface 250 of the reflector has a flange surface 201 extending horizontally along the edge of the lower opening surface. When the reflector is assembled to the buried housing, the flange surface 201 of the lower opening surface 250 comes into contact with the lower end of the ring body 110 of the buried housing.

The light emitting surface 120a of the LED module is positioned on the upper opening surface 240, and the light emitted from the LED module passes through the inside of the horn body sidewall and is projected downward through the lower opening surface 250 of the horn body. At this time, the light emitted from the LED module is reflected from the inner surface of the side wall of the horn body to form a light distribution range and is projected under the lower opening surface 250. In the above, the light distribution range indicates a distribution state of light emitted from a light source in a certain space, and the light distribution range varies depending on the curvature of the inner side wall.

The side wall 230 is a connecting surface connecting the upper opening surface and the lower opening surface, and the inner surface of the side wall has a curvature.

In the present invention, the curvature refers to the degree of warpage of the inner surface of the side wall 230 of the reflector. Therefore, a large curvature means that the inner surface of the sidewall is straightened, and a small curvature means that the inner surface of the sidewall is closer to a rounded curve.

According to the curvature which is the degree of curvature of the inner surface of the side wall 230 of the reflector, the distribution state of light emitted from the light emitting surface is different. If the curvature is large, the reflector sidewall is straightened and the light distribution of the emitted light is concentrated without spreading. On the contrary, if the curvature is small, the reflector sidewall 230 is curved and the light distribution is not concentrated. Has

6, 7 and 8 are graphs showing the distribution range of light distribution according to the curvature of the inner surface of the reflector sidewall according to the embodiment of the present invention. FIG. 6 is the largest curvature, FIG. 7 is the next largest, and FIG. 8 shows a light distribution range when the curvature is the smallest.

Referring to FIG. 6, it can be seen that the distribution range of light distribution when the curvature is relatively large has a distribution range of 20 °. Referring to FIG. 7, it can be seen that the reflector having a curvature smaller than that of FIG. 6 has a light distribution range of 30 ° because the inner surface of the sidewall is curved than the reflector of FIG. 6. Referring to FIG. 8, it can be seen that the reflector having a curvature smaller than that of FIG. 7 has a light distribution range of 60 ° because the inner surface of the sidewall is curved than the reflector of FIG. 7. Accordingly, it can be seen that the light distribution range is wider as the curvature has a smaller curvature, and the light distribution range is narrow as the curvature has a large curvature.

As a result, the embodiment of the present invention is implemented as an inner surface having a different curvature for each reflector, so that when the distribution of light distribution is to be different, a first light distribution is obtained by coupling a first reflector having a corresponding first curvature to the buried housing. You can have a range. Similarly, a second reflector having a second curvature may be coupled to have a second light distribution range.

For reference, FIG. 10 illustrates a process of fastening the reflector to the buried housing according to the embodiment of the present invention. After forming the buried groove to install the lighting fixture on the ceiling and insert the buried housing into the buried groove as shown in Figure 10 (a). Then, as the buried housing is buried in the buried groove as shown in FIG. 10 (b), when the screw connected to the bracket provided in the connector is tightened, the bracket connected to the screw is also lowered in height, and the lower end of the bracket is lowered into the buried groove. Force is applied to the surrounding ceiling floor. By the pressing force, the buried housing may be fixed to the buried groove. Thereafter, the reflector is inserted into the buried housing as shown in FIG. 10 (c) to fix it by the step surface of the locking body, and then a fully assembled buried lighting apparatus can be installed as shown in FIG. 10 (d). A protective cover 91 is attached to the lower opening surface 250 of the reflector. The protective cover 91 prevents dust from entering during construction when the reflector is buried and prevents fingerprints and static electricity. . Therefore, the protective cover 91 is removed after the reflector filling is completed. To this end, the protective cover 91 is implemented in a transparent material (PET) to be easily removable detachable with a pressure-sensitive adhesive.

On the other hand, the inner surface of the side wall of the reflector may be coated with a white coating to implement a different light distribution. For example, even if the reflector having an inner surface of the sidewall having the same curvature as in FIG. 8, the light distribution may be widened to a range of 75 ° as shown in FIG. 9 by coating a white paint (white paint material) on the inner surface of the reflector. As the white paint, an oil paint or the like used in resin (a plastic raw material) may be used.

Meanwhile, the pattern may be formed on the inner surface of the sidewall of the reflector. The light distribution can be varied by pattern formation. The pattern formed on the inner surface of the side wall of the reflector may have various patterns. As shown in FIG. 11, a honeycomb shape may be formed on the inner surface of the side wall of the reflector to adjust the light distribution.

On the other hand, by using a curved reflector structure having a curvature, it is realized by various sidewalls of the reflector in a concentrated (spot), narrow (narrow), diffusion structure (wide), etc. corresponding to the buried housing according to the intended use Can be used by fastening the reflector. For reference, FIG. 12 is a photograph of a buried luminaire to which various types of reflectors are coupled according to an embodiment of the present invention.

Meanwhile, the reflector and the detachable means may be manufactured in one piece in addition to the detachable type. As shown in FIG. 13, the reflector and the detachable means may be manufactured in one piece as the same material. To this end, it can be produced by injecting integrally using a mold (mold) having the shape of the reflector and the detachable means. For reference, FIG. 13 shows a photograph of a product in which the reflector and the detachable means are integrally manufactured.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

100: buried body 110: buried housing
120: LED module 130: connector
140: bracket 200: reflector
210: frame 220: locking body

Claims (14)

A buried housing having a ring shape having a rim shape having a thickness and a vertical protrusion protruding vertically along the inner diameter of the ring body and inserted into a buried groove of a ceiling;
An LED module connected to the buried housing;
A connector connecting the LED module and the buried housing to each other;
A bracket fixing the buried housing buried in the buried groove of the ceiling to the bottom surface of the ceiling;
And a reflector having upper and lower openings, the reflector being detachable from the buried housing so that the light emitting surface of the LED module is positioned on the upper opening of the cone and emits light through the lower opening.
The reflector is
An open upper opening surface, an open lower opening surface, sidewalls connecting the upper opening surface and the lower opening surface, a frame surrounding the side wall, a stepped surface and a guide projecting from the frame It includes a fastening material made of cotton elastic material,
The inclination of the stepped surface protruding from the rim has an obtuse angle greater than the horizontal angle of the flanged surface protruding horizontally from the lower opening surface, such that the stepped surface of the locking body is caught by the vertical protruding body of the buried housing. Recessed luminaires that allow elasticity with vertical protrusions. The embedded lighting apparatus of claim 1, further comprising a protective cover that seals a lower opening surface of the reflector and is detachable. The method according to claim 1, wherein the LED module,
PCB board equipped with a plurality of LEDs;
A diffusion cover attached to the PCB to uniformly spread the light emitted from the LED;
A heat sink dissipating heat generated from the LED to the outside;
Recessed lighting fixture comprising a. delete delete The buried light fixture of claim 1, wherein the lower opening surface has a flange surface extending horizontally along an edge of the lower opening surface. delete delete The embedded lighting apparatus of claim 1, wherein the inner surface of the sidewall has different curvatures for each reflector. The method according to claim 9, wherein the reflector having a sidewall with the curvature is reduced to increase the light distribution of the LED module in the buried light fixture, and the curvature is increased to reduce the light distribution of the LED module A buried light fixture for attaching a reflector having an inner surface of a side wall to the buried light fixture. The embedded lighting apparatus of claim 1, wherein a white paint is coated on an inner surface of the side wall. The buried light fixture according to any one of claims 6, 9, 10, and 11, wherein a pattern is formed on an inner surface of the side wall. The buried light fixture of claim 12, wherein the pattern is in the form of a honeycomb. The embedded lighting fixture of claim 1, wherein the reflector and the detachment means are integrally injected by one mold.

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