KR101028104B1 - Lighting device - Google Patents

Abstract

PURPOSE: A light device is provided to support a light source unit and have an end cap which prevents light leak, thereby effectively preventing light leak. CONSTITUTION: A housing contains a coupling member, a reflector, and a power driving unit. The housing includes a downward opening unit so that light emitted from a light source unit is reflected from the reflector. An end cap(350) is coupled with both ends of the light source unit. An end cap is coupled with a coupling fixture(335) of a middle body(320) by a bolt and a bolt hole(355) so that the end cap is coupled with the light source unit.

Description

LIGHTING DEVICE

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.

The embodiment provides an illumination device that can effectively prevent light leakage.

Lighting device according to the embodiment, the housing, the coupling member coupled to the housing, at least one reflector coupled between the wall surface of the housing and the wall surface of the coupling member, the upper portion is coupled with the coupling member, the lower portion emits light toward the reflector It includes a light source unit, and the end cap coupled to the side end portion of the light source portion, the lower end has a bump supporting the light source portion and preventing light leakage through the side end of the light source portion.

According to the embodiment, it is possible to provide a lighting device that can effectively prevent light leakage phenomenon.

1A is a perspective view of a lighting device according to an embodiment as seen from above.
FIG. 2B is an enlarged view of a region A of FIG. 1A; FIG.
Figure 2a is a perspective view of the lighting apparatus according to the embodiment seen from the bottom.
2B is an exploded perspective view of the lighting apparatus according to the embodiment.
3 is a sectional view of a lighting apparatus according to an embodiment;
4 is a cross-sectional view of the coupling member according to the embodiment.
5 is a view showing the housing and the coupling member separately according to the embodiment;
FIG. 6 is an enlarged view of region B of FIG. 3;
7 is an exploded perspective view of the light source unit according to the embodiment;
8 is a view illustrating an internal air circulation path of the lighting apparatus according to the embodiment.
9 to 11 are views showing the configuration of the first connection terminal and the second connection terminal according to the embodiment.
12 is a view showing a coupling relationship between the light source unit and the end cap according to the embodiment.
13 is a view showing the end cap coupled to the light source unit according to the embodiment.
14 and 15 are views showing the coupling and separation process of the light source unit and the coupling member according to the embodiment.
16 and 17 are sectional views of the light source unit and the coupling member of the lighting apparatus according to the modification.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the embodiments, the scope of the present invention is not limited to the scope of the accompanying drawings will be readily understood by those of ordinary skill in the art. Could be.

1a is a perspective view of a lighting device 1 according to the embodiment seen from above. FIG. 2B is an enlarged view of region A of FIG. 1A. 2a shows a perspective view of a lighting device 1 according to an embodiment as seen from below. 2B is an exploded perspective view of the lighting device 1 according to the embodiment. 3 is a cross-sectional view of the lighting device 1 according to the embodiment. 4 is a cross-sectional view of the coupling member 110 according to the embodiment. 5 is a view showing the housing 100 and the coupling member 110 separately according to the embodiment.

1 to 5, the lighting device 1 according to the embodiment includes a housing 100, a coupling member 110, a reflector 200, a light source unit 300, and a power driver 400.

One. 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, the reflector 200, and the power driver 400. 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 include 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).

Connection grooves 107 may be formed on the side and / or top surface of the housing 100 to electrically connect the power driver 400 to an external power source.

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

As shown in FIGS. 1A and 1B, a first opening 105 may be formed on an upper surface of the housing 100. The first opening 105 may open the upper and lower portions of the housing, and one or more may be formed. For example, the first opening 105 may be formed in the form of a band hole protruding from the upper surface of the housing 100 and having at least one side open. However, the present invention is not limited thereto, and any form may be used to open the upper and lower portions of the housing 100 so that air can be circulated.

When the lighting device is installed on an external support member such as a ceiling or a wall, an insertion part corresponding to the shape of the lighting device is formed on the external support member, and the lighting device is inserted and fixed to the insertion part. At this time, the coupling frame 500 is coupled to the lower end of the side of the housing 100 to firmly couple the lighting device to the external support member.

The coupling member 110 may be coupled on the inner upper surface 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 102 of the housing 100. For example, the coupling member 110 may be formed to extend from the wall surface of any one of the inner wall surface of the housing 100 to the opposite wall surface.

The housing 100 and the coupling member 110 may be formed to detach the reflector 200. A first groove 103 into which the first side 210 of the reflector 200 may be inserted may be formed on the inner wall surface of the housing 100. The first groove 103 may be formed in one piece, or may be formed in plurality.

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

As such, the first side 210 of the reflector 200 is inserted into the first groove 103 of the housing 100, and the second side 220 is inserted into the second 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.

As shown in FIG. 4, a first insertion groove 112 may be formed in a middle portion of the coupling member 110 in a direction toward an inner upper surface of the housing 100. A portion of the light source unit 300 may be inserted into the first insertion groove 112. The first insertion groove 112 may be formed to extend in the first direction.

As shown in FIG. 5, one or more second openings 111 may be formed in the central portion of the coupling member 110 to open the upper and lower portions. The second opening 111 may be formed at a position corresponding to the first opening 105 formed in the housing 100, and may be formed in plural along the first direction.

A plurality of locking grooves 113 may be formed on both inner wall surfaces of the first insertion groove 112. The first groove 310c and the second protrusion 320c of the light source 300 may be inserted into the locking groove 113. Accordingly, the light source unit 300 may be coupled to the coupling member 110 to be firmly fixed by inserting the first protrusion 310c and the second protrusion 320c into the locking groove 113. A 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 installed in the middle portion of the first insertion groove 112. When the light source unit 300 is inserted into the first insertion groove 112, the first connection terminal 120 may be electrically coupled to the second connection terminal 336 of the light source unit 300. When the first connection terminal 120 and the second connection terminal 336 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 336. Can be.

One or more first connection terminals 120 may be formed according to the design of the lighting device. A more detailed description of the first connection terminal 120 will be described later along with a detailed description of the second connection terminal 336.

Coupling member 110 may serve to directly discharge the heat generated from the light source unit 300 or to the housing 100. Accordingly, the 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).

Some regions of the coupling member 110 may have an uneven structure. Unevenness (not shown) may improve heat dissipation efficiency by widening the surface area of the coupling member 110.

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 or separated from the housing 100 and the coupling member 110.

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

The first side 210 of the reflector 200 may be formed to have a step. In addition, the second side 220 of the reflector 200 may also be formed to have a step. In addition, one or more insertion ends 211 may be formed on the first side 210. At least one insertion end 211 may be formed at the first side 210 of the reflector 200 to be inserted into the first groove 103. The first groove 103 may be formed to correspond to the shape of the insertion end 211.

The first reflector 200a and the second reflector 200b may have a parabolic surface and may be formed to extend in a 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), a 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.

3. Power drive unit 400

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

As illustrated in FIGS. 2B and 3, the power driver 400 may be installed in 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, and the first connection terminal 120 is formed of a first connection terminal 120. By being electrically connected to the two connection terminals 336, the power driver 400 and the light source 300 may be electrically connected.

4. Light source (300)

FIG. 6 is an enlarged view of region B of FIG. 3. 7 is an exploded perspective view of the light source unit 300 according to the embodiment.

6 and 7, the light source unit 300 according to the embodiment includes a first body 310, a second body 320, an intermediate body 330, and a first main light source module 313, 314, and 315. ), Second primary light source modules 323, 324, 325, secondary light source modules 332, 333, 334, and springs 340. Here, the first body 310, the second body 320, the intermediate body 330 forms a body of the light source unit 300. The first body 310, the second body 320, and the intermediate body 330 may be formed to extend in a first direction, that is, along a length direction of the reflector 200.

Hereinafter, the configuration of the light source unit 300 will be described in more detail.

1) first body 310

The third coupling part 310a may be formed on the upper portion of the first body 310. The third coupling portion 310a constitutes an upper portion of the first body 310 and becomes a portion to be inserted into the first insertion groove 112 of the coupling member 110.

A first protruding end 310c may be formed at an upper end of the third coupling portion 310a. The first protrusion 310c may have a shape in which a portion of the upper end of the third coupling portion 310a protrudes outward.

The first light emitting groove 312 may be formed on one lower surface of the first body 310. The bottom of the first light emitting groove 312 may be formed to have a first inclined surface 310b. The first inclined surface 310b may be formed to face the parabolic surface of the first reflector 200a. However, in addition to the first inclined surface 310b, the first body 310 may have a plurality of inclined surfaces. The lower outer surface of the first body 310 may have a predetermined bend or angled as shown in the figure.
The first light emitting groove 312 includes a bottom on which the first main light source modules 313, 314, and 315 are disposed and at least two side surfaces. Here, the distance between two side surfaces of the first light emitting groove 312 is preferably equal to or narrower than the width of the bottom surface of the light emitting groove 312. In particular, when the distance between two side surfaces of the first light emitting groove 312 is narrower than the width of the bottom surface of the light emitting groove 312, the first main light source module (313, 314, 315) is the light emitting groove 312 It can be easily mounted on the bottom surface of the light emitting groove 312 in the direction perpendicular to the depth direction of. That is, the first main light source modules 313, 314, and 315 may be mounted to the light emitting grooves 312 in a sliding manner.

The first main light source modules 313, 314, and 315 may be installed in the first light emitting groove 312. The first main light source modules 313, 314, and 315 may include a first substrate 313, a plurality of main light emitting diodes 314, and a first optical structure 315.

The first substrate 313 may be installed on the bottom surface of the first light emitting groove 312 along the first inclined surface 310b.

The plurality of main light emitting diodes 314 are installed on the first substrate 313 along the first inclined surface 310b and electrically connected to the first substrate 313. Alternatively, a plurality of electrodes (not shown) may be installed on the first inclined surface 310b to be electrically connected to the plurality of electrodes (not shown), respectively. The plurality of main light emitting diodes 314 may be arranged in an array in the first light emitting groove 312.

The plurality of primary light emitting diodes 314 may be selected to have various combinations of red, green, blue or white light emitting diodes emitting red, green, blue or white light.

The plurality of main light emitting diodes 314 may be controlled by a power source and / or a driving signal provided from the power source driving unit 400 to selectively emit light or adjust brightness.

The first optical structure 315 may be installed on the plurality of main light emitting diodes 314. The first optical structure 315 may control light distribution and color of light emitted from the plurality of main light emitting diodes 314, and may implement emotional lighting having various brightness and colors as necessary.

Both side ends of the first optical structure 315 may be inserted into the side grooves formed on both inner sides of the first light emitting groove 312 in a sliding manner and installed in the first light emitting groove 312. The side grooves may be formed to extend in the first direction, and the first optical structure 315 may be coupled to the first light emitting grooves 312 by being inserted into the side grooves in the first direction.

The first optical structure 315 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 main light emitting diodes 314.

Photoexcitation film (PLF) is a film containing a phosphor. Since the phosphor contained in the photoexcited film (PLF) is excited by the light emitted from the plurality of main light emitting diodes 314, the illumination device is excited by the first light and the phosphor emitted from the plurality of main light emitting diodes (314). The second light may be mixed to implement emotional lighting having various colors. For example, when the plurality of main light emitting diodes 314 emit blue light, and the photoexcited film PLF includes a yellow phosphor excited by blue light, the lighting device is mixed with blue light and yellow light. Can emit white light.

Since the first optical structure 315 may be easily coupled to the first light emitting groove 312 through side grooves, the first optical structure 315 may be easily replaced with one of a lens, a diffusion sheet, and an optical excitation film according to a user's needs. have.

The depth and width of the first light emitting groove 312 may be variously adjusted according to the distribution of light distribution of the plurality of main light emitting diodes 314 installed in the first light emitting groove 312. That is, the lighting device may adjust the depth and width of the first light emitting groove 312 so that the light emitted from the light source 300 may be provided by the reflector 200 instead of being directly provided to the user. As a result, glare may be reduced to the user to provide soft light.

The light distribution angle of the light emitted through the first light emitting groove 312 may be 90 ° to 110 °, and the depth and width of the first light emitting groove 312 may be light emitted through the first light emitting groove 312. The reflector 200 may be formed to be evenly incident on the entire area.

In addition, the depth and width of the first light emitting groove 312 is, a portion of the light emitted from the plurality of main light emitting diodes 314 is emitted to the outside through the lower opening 101, the remaining portion is reflected to the reflector 200 It may be adjusted to be emitted to the outside through the lower opening 101 after being reflected by.

As illustrated in FIGS. 6 and 7, the first hinge part 311 may be formed on the other lower side of the first body 310. The first hinge portion 311 may have a form protruding outward. In addition, the end portion may be partially formed along the other lower side of the first body 310, that is, in the first direction. For example, the first hinge portion 311 may be formed only at the center portion of the lower lower side of the first body 310 or vice versa, or may be formed of a plurality of first hinge portions 311. The end of the first hinge portion 311 may be cylindrical.

Second insertion grooves 331 may be formed at both lower sides of the intermediate body 330, respectively. The second insertion groove 331 may be a cylindrical groove extending in the first direction. An end of the first hinge portion 311 may be inserted into the second insertion groove 331 in a sliding manner, and the first body 310 may be rotatably coupled to the intermediate body 330. In this case, the first body 310 may rotate at a predetermined angle with the longitudinal direction of the first hinge portion 311 as the rotation axis. The structures of the first hinge portion 311 and the second insertion groove 331 are not limited thereto, and the structures may be rotatably coupled to the first body 310 and the intermediate body 330.

When the first body 310 and the intermediate body 330 are coupled, one or more third openings 319 may be formed in the first coupling portion connecting the first body 310 and the intermediate body 330. . In the third opening 319, the first hinge part 311 is not formed along the space between the first hinge part 311 and the first hinge part 311 or the lower side of the first body 310. By the part which is not, it means the opening which arose in the 1st engagement part.

2) second body 320

A fourth coupling part 320a may be formed on the second body 320. The fourth coupling portion 320a constitutes an upper portion of the second body 320 and becomes a portion inserted into the first insertion groove 112 of the coupling member 110.

A second protruding end 320c may be formed at an upper end of the fourth coupling part 320a. The second protruding end 320c may have a shape in which a part of the upper end of the fourth coupling part 320a protrudes outward.

The second light emitting groove 322 may be formed on one lower surface of the second body 320. The bottom of the second light emitting groove 322 may be formed to have a second inclined surface 320b. The second inclined surface 320b may be formed to face the parabolic surface of the second reflector 200b. However, the second body 320 may have a plurality of inclined surfaces in addition to the first inclined surface 320b.

Second main light source modules 323, 324, and 325 may be installed in the second light emitting grooves 322. The second main light source modules 323, 324, and 325 may include a first substrate 323, a plurality of main light emitting diodes 324, and a first optical structure 325.

The first substrate 323 may be installed on the bottom surface of the first light emitting groove 322 along the first inclined surface 320b.

The plurality of main light emitting diodes 324 are installed on the first substrate 323 along the first inclined surface 320b and are electrically connected to the first substrate 323. Alternatively, a plurality of electrodes (not shown) may be installed on the second inclined surface 320b to be electrically connected to the plurality of electrodes (not shown), respectively. The plurality of main light emitting diodes 324 may be arranged in an array in the second light emitting grooves 322.

The plurality of primary light emitting diodes 324 may be selected to have various combinations of red, green, blue or white light emitting diodes emitting red, green, blue or white light.

The plurality of main light emitting diodes 324 may be controlled by a power source and / or a driving signal provided from the power source driving unit 400 to selectively emit light or adjust luminance.

The first optical structure 325 may be installed on the plurality of main light emitting diodes 324. The first optical structure 325 may adjust light distribution and color of light emitted from the plurality of main light emitting diodes 324, and may implement emotional lighting having various brightness and colors as necessary.

Both side ends of the first optical structure 325 may be inserted into the side grooves formed on both inner sides of the second light emitting groove 322 in a sliding manner, and may be installed in the second light emitting groove 322. More specifically, the side grooves may be formed to extend in the first direction, and the first optical structure 325 may be coupled to the second light emitting grooves 322 by being inserted into the side grooves by sliding in the first direction. have.

The first optical structure 325 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 main light emitting diodes 324.

Photoexcitation film (PLF) is a film containing a phosphor. Since the phosphor included in the photoexcited film (PLF) is excited by the light emitted from the plurality of main light emitting diodes 324, the illumination device is excited by the first light and the phosphor emitted from the plurality of main light emitting diodes 324. The second light may be mixed to implement emotional lighting having various colors. For example, when the plurality of main light emitting diodes 324 emit blue light and the photoexcited film PLF includes a yellow phosphor excited by blue light, the lighting device is mixed with blue light and yellow light. Can emit white light.

Since the first optical structure 325 may be easily coupled to the second light emitting groove 322 through the side groove, the lens may be easily replaced with one of a lens, a diffusion sheet, and an optical excitation film according to a user's need. have.

The depth and width of the second light emitting groove 322 may be variously adjusted according to the distribution of light distribution of the plurality of main light emitting diodes 324 installed in the second light emitting groove 322. That is, the lighting device may adjust the depth and width of the second light emitting groove 322 so that the light emitted from the light source 300 may be provided by the reflector 200 instead of being directly provided to the user. As a result, glare may be reduced to the user to provide soft light.

The light distribution angle of light emitted through the second light emitting groove 322 may be 90 ° to 110 °, and the depth and width of the second light emitting groove 322 may be light emitted through the second light emitting groove 322. The reflector 200 may be formed to be evenly incident on the entire area.

In addition, the depth and width of the second light emitting grooves 322 include a portion of the light emitted from the plurality of main light emitting diodes 324 to the outside through the lower opening 101, and a portion of the second light emitting grooves 322 to the reflector 200. It may be adjusted to be emitted to the outside through the lower opening 101 after being reflected by.

As shown in FIG. 6 and FIG. 7, a second hinge portion 321 may be formed on the other lower side of the second body 320. The second hinge portion 321 may have a form protruding outward. In addition, the end portion may be partially formed along the other lower side of the second body 320, that is, in the first direction. For example, the second hinge portion 321 may be formed only at the center portion of the lower lower side of the second body 320 or vice versa, or may be formed of a plurality of second hinge portions 321. The end of the second hinge portion 321 may be cylindrical.

Second insertion grooves 331 may be formed at both lower sides of the intermediate body 330, respectively. The second insertion groove 331 may be a cylindrical groove extending in the first direction. An end of the second hinge portion 321 may be inserted into the second insertion groove 331 in a sliding manner, and the second body 320 may be rotatably coupled to the intermediate body 330. In this case, the second body 320 may rotate at a predetermined angle with the longitudinal direction of the second hinge portion 321 as the rotation axis. The structures of the second hinge portion 321 and the second insertion groove 331 are not limited thereto, and may be any structure that can couple the second body 320 and the intermediate body 330 to be rotatable.

When the second body 320 and the intermediate body 330 are coupled, one or more third openings 329 may be formed in the second coupling portion connecting the second body 320 and the intermediate body 330. . In the third opening 329, the second hinge portion 321 is not formed along the space between the second hinge portion 321 and the first hinge portion 311 or the lower side of the second body 320. By the part which is not, it means the opening which arose in the 2nd engagement part.

As described above, the first body 310 and the second body 320 may have the same structure, the configuration may also be the same.

In addition, the first body 310 and the second body 320 may be manufactured to have a constant cross section in the first direction through an extrusion molding process.

In addition, the first body 310 and the second body 320 may be aluminum (Al), tin (Sn), nickel (Ni) to effectively discharge the heat generated from the plurality of main light emitting diodes (314, 324). ), Silver (Ag), copper (Cu), titanium (Ti), molybdenum (Mo), tungsten (W), gold (Au), platinum (Pt) may be formed of a metal.

3) intermediate body (330)

Second insertion grooves 331 may be formed on both side surfaces of the lower body 330a of the intermediate body 330, respectively. The second insertion grooves 331 are formed to extend in the first direction, respectively, so that the first hinge portion 311 of the first body 310 and the second hinge portion 321 of the second body 320 are inserted. Can be. For example, as described above, the first hinge part 311 and the second hinge part 321 may be respectively inserted into the second insertion groove 331 by a sliding insertion method, but is not limited thereto.

Accordingly, the first body 310 and the second body 320 may be detachably coupled to both sides of the intermediate body 330. In addition, the first body 310 and the second body 320 may be coupled to be rotatable about the first hinge portion 311 and the second hinge portion 321, respectively.

The auxiliary light source modules 333, 334, and 335 may be installed on the bottom surface of the lower body 330a of the intermediate body 330. More specifically, a third light emitting groove 332 may be formed on the lower bottom surface of the intermediate body 330, and the auxiliary light source modules 333, 334, and 335 may be installed in the third light emitting groove 332. The auxiliary light source modules 333, 334, and 335 may include a second substrate 333, a plurality of auxiliary light emitting diodes 334, and a second optical structure 335.

The second substrate 333 may be installed on an inner upper surface of the third light emitting groove 332.

The plurality of auxiliary light emitting diodes 334 are provided on the second substrate 333 and are electrically connected to the second substrate 333. Alternatively, a plurality of electrodes (not shown) may be installed on an inner upper surface of the third light emitting groove 332 to be electrically connected to the plurality of electrodes (not shown), respectively.

Both side ends of the second optical structure 335 may be inserted into the side surface formed on the inner surface of the third light emitting groove 332 in a sliding manner, and may be installed in the third light emitting groove 332. Here, the side groove may be formed to extend in the first direction, the second optical structure 335 may be installed in the third light emitting groove 332 by being inserted into the side groove in the first direction.

The plurality of auxiliary light emitting diodes 334 may be controlled by a power source and / or a driving signal provided from the power driver 400 to selectively emit light or adjust brightness. The auxiliary light emitting diode 334 may be used, for example, when more illuminance is required, when soft illumination is required, or as a display device.

The second optical structure 335 may be installed on the plurality of auxiliary light emitting diodes 334. The second optical structure 335 may control light distribution and color of light emitted from the plurality of auxiliary light emitting diodes 334, and may implement emotional lighting having various brightness and colors as needed.

The second optical structure 335 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 main light emitting diodes 314.

Photoexcitation film (PLF) is a film containing a phosphor. Since the phosphor included in the photoexcited film (PLF) is excited by the light emitted from the plurality of main light emitting diodes (314, 324), the illumination device and the first light emitted from the plurality of main light emitting diodes (314, 324) The second light excited by the phosphors may be mixed to implement emotional lighting having various colors. For example, when the plurality of main light emitting diodes 314 and 324 emit blue light, and the photoexcited film PLF includes a yellow phosphor excited by blue light, the lighting device may include blue light and yellow light. It can be mixed to emit white light.

Since the second optical structure 335 may be easily coupled to the third light emitting groove 332 through the fifth groove 332a, the second optical structure 335 may be easily replaced with any one of a lens, a diffusion sheet, and an optical excitation film according to a user's needs. Can be used.

The intermediate body 330 according to the embodiment may have a constant cross section in the first direction and may be manufactured to have a left-right symmetrical structure through an extrusion molding process.

As described above, when the first body 310, the second body 320, and the intermediate body 330 is coupled, the outer surface and the first side of the first hinge portion 311 and the second hinge portion 321 2 By contacting the inner surface of the insertion groove 331, it is possible to form a heat release path between the first body 310, the second body 320, and the intermediate body 330.

Accordingly, the lower portion 330a of the intermediate body 330 has high thermal conductivity of aluminum (Al), tin (Sn), nickel (Ni), silver (Ag), copper (Cu), It may be formed of a metal such as titanium (Ti), molybdenum (Mo), tungsten (W), gold (Au), platinum (Pt). Since the electrical components are mounted on the upper portion 330b of the intermediate body 330, it is preferable that heat is not transferred. Therefore, the upper portion of the intermediate body 330 is formed of a material such as plastic having low thermal conductivity such that heat generated from the lower portion of the first body 310, the second body 320, and the intermediate body 330 is not transferred. Can be.

In addition, heat generated from the primary light emitting diodes 314 and 324 and the auxiliary light emitting diode 334 may be emitted by the body of the light source unit 300 or transferred to the coupling member 110. That is, when the light source unit 300 is inserted into the first insertion groove 112 of the coupling member 110, the light source unit 300 includes the first coupling groove 310a and the fourth coupling unit 320a. It has a contact area with the inner side of 112. As such, one surface of the third coupling portion 310a and the fourth coupling portion 320a contacts the inner surface of the first insertion groove 112, whereby a heat conduction route from the light source unit 300 to the coupling member 100 is obtained. Can be formed. At this time, the heat dissipation effect may increase as the contact area is wider, but the height of the first body 310 and the second body 320 is increased, and as a result, the height of the housing 100 should be increased. Therefore, in order for the lighting device to have an optimal heat dissipation effect, the relationship between the contact area and the height of the housing 100 should be considered. In addition, irregularities are formed in a portion of the body of the light source unit 300, thereby effectively dissipating heat.

On the other hand, the coupling member 110 of the housing 100 is provided with a first insertion groove 112 in which the inner wall surface extends (that is, extends in the first direction) by the length of the light source unit 300. In addition, the light source unit 300 includes a light source seating part in direct contact with the light source, and third and fourth coupling parts 310a provided in surface contact with an inner wall surface of the first insertion groove 112 provided in the coupling member 110. 320a). Here, the light source mounting part means a light emitting groove provided with a light emitting diode and a lower portion of the light source unit 300 in which the light emitting groove is formed.

When the lighting device is operated, heat generated from the light source mounting part may be emitted to the coupling member 110 through the third and fourth coupling parts 310a and 320a. In this case, the inner wall surfaces of the third and fourth coupling parts 310a and 320a and the first insertion groove 112 make surface contact, so that heat generated from the light source seating part may be transferred to the coupling member 110. have. At this time, the inner wall surface of the first insertion groove 112 is extended by the length of the light source unit 300 (that is, extending in the first direction), so that the contact area with the third and fourth coupling units 310a and 320a is maximum. Will be achieved. Accordingly, the heat dissipation efficacy of the lighting device can be improved.

8 is a view for explaining the air circulation path of the lighting device 1 according to the embodiment.

As shown in FIG. 8, the lighting device 1 according to the embodiment is configured to have a first air circulation path 10a and a second air circulation path 10b. The first air circulation path 10a is formed by the first opening 105 formed in the housing 100, the second opening 111 formed in the coupling member 110, and the first body 310 and the intermediate body 330. It may refer to a path formed along the third opening 319 formed in the first coupling part. The second air circulation path 10b is formed by the first opening 105 formed in the housing 100, the second opening 111 formed in the coupling member 110, and the second body 320 and the intermediate body 330. It may mean a path formed along the third opening 329 formed in the second coupling portion.

Therefore, the lighting device 1 according to the embodiment maintains an internal air circulation path through the first opening 105, the second opening 111, and the third opening 319, 329, thereby increasing the temperature of the light source 300. It can lower the heat dissipation characteristics can be improved.

On the other hand, since the lower portion of the first body 310 and the second body 320 is manufactured to have an inclined surface facing the reflector 200, the cross section of the light source 300, that is, the first body 310, the second body 320 ), The cross section that the intermediate body 330 is coupled may have a lower width than the upper width. For example, the cross section of the light source unit 300 may have a fan or polygonal shape. However, the present invention is not limited thereto, and the light source unit 300 may have various shapes.

4) Spring (340)

The spring 340 may be disposed above the intermediate body 330. For example, the spring 340 may be “c” shaped, as shown in FIG. 8, and may be disposed between the lower 330a and the upper 330b of the intermediate body 330, and the intermediate body. When the first body 310 and the second body 320 are coupled to both sides, the first body 310 and the second body 320 may be disposed to contact inner surfaces of the first body 310 and the second body 320.

The spring 340 may provide an elastic force to the first body 310 and the second body 320 in a direction away from the first body 310 and the second body 320. That is, the spring 340 is disposed between the first body 310 and the second body 320, and serves to push the first body 310 and the second body 320 to each other. Therefore, when the light source unit 300 is inserted into the coupling member 110, the first protrusion 310c and the second protrusion 320c are caught by the locking groove 113, and the spring 340 is applied to the force. As a result, the light source 300 may be more firmly coupled to the coupling member 110.

A force acts on the upper part of the first body 310 and the second body 320 by the spring 340 in a direction pushing each other, by the force of the first body 310 and the second body 320 The force acts on the lower side toward the intermediate body 330. Accordingly, the first body 310 and the second body 320 may be balanced and supported by the intermediate body 330.

5) the first connection terminal 120 and the second connection terminal 336

9 to 11 are views illustrating the configuration of the first connection terminal 120 and the second connection terminal 336 according to the embodiment.

The first connection terminal 120 and the second connection terminal 336 may be coupled as the light source unit 300 is inserted into the first insertion groove 112.

The first connection terminal 120 may include a first arm block 121a and a second arm block 121b, but is not limited thereto and may include one or more pairs of arm blocks. For example, a pair of first and second terminals 123a and 123b and another pair of third and fourth terminals 123c and 123d may be formed in the first arm block 121a. In addition, a pair of fifth and sixth terminals 123e and 123f and another pair of seventh and eighth terminals 123g and 123h may be formed in the second arm block 121b.

The first arm block 121a and the second arm block 121b are formed to have symmetrical structures with each other. That is, the first to fourth terminals 123a, 123b, 123c, and 123d and the fifth to eighth terminals 123e, 123f, 123g, and 123h are formed of the first arm block 121a and the second arm block 121b. It is formed in a symmetrical structure with respect to the space between.

The second connection terminal 336 may include a first male block 336a and a second male block 336b, but is not limited thereto and may include one or more pairs of male blocks. For example, a pair of first and second sockets 336a and 336b and another pair of third and fourth sockets 337c and 337d may be formed on the first male block 336a. In addition, a pair of fifth and sixth sockets 337e and 337f and another pair of seventh and eighth sockets 337g and 337h may be formed in the second male block 336b.

The first male block 336a and the second male block 336b are formed to have a symmetrical structure with each other. That is, the first to fourth sockets 337a, 337b, 337c, and 337d and the fifth to eighth sockets 337e, 337f, 337g, and 337h are formed of the first male block 336a and the second male block 336b. It is formed in a symmetrical structure with respect to the space between.

Polarities of the first arm block 121a and the second arm block 121b may be symmetrically formed.

Polarities of the first and second terminals 123a and 123b are symmetrical with polarities of the seventh and eighth terminals 123g and 123h. For example, when the polarities of the first and second terminals 123a and 123b are '+' and '-', respectively, the polarities of the seventh and eighth terminals 123g and 123h are '-' and '+', respectively. If the polarity of the first and second terminals 123a and 123b are '-' and '+', respectively, the polarities of the seventh and eighth terminals 123g and 123h are respectively '+' and '- Becomes'

In addition, polarities of the third and fourth terminals 123c and 123d are symmetrical with polarities of the fifth and sixth terminals 123e and 123f. For example, when the polarities of the third and fourth terminals 123c and 123d are '+' and '-', respectively, the polarities of the fifth and sixth terminals 123e and 123f are '-' and '+', respectively. If the polarity of the third and fourth terminals 123c and 123d are '-' and '+', respectively, the polarities of the fifth and sixth terminals 123e and 123f are '+' and '-, respectively. Becomes'

The polarity of the first to eighth sockets 337a, 337b, 337c, 337d, 337e, 337f, 337g, and 337h is determined by the first to eighth terminals 123a, 123b, 123c, 123d, 123e, 123f, 123g, and 123h. It can be made in various ways depending on the polarity it has.

When the coupling member 110 and the light source unit 300 are coupled in the first direction, the first and second terminals 123a and 123b are inserted into the first and second sockets 337a and 337b and the third and the third terminals. Four terminals 123c and 123d are inserted into the third and fourth sockets 337c and 337d, and fifth and sixth terminals 123e and 123f are inserted into the fifth and sixth sockets 337e and 337f. As the seventh and eighth terminals 123g and 123h are inserted into the seventh and eighth sockets 337g and 337h, the first and second connection terminals 120 and 336 may be electrically and physically connected. .

In addition, when the coupling member 110 and the light source unit 300 are coupled in a second direction (a direction opposite to the first direction or a direction in which the left and right sides are reversed), the first and second terminals 123a and 123b may be connected to the seventh and fifth terminals. 8 is inserted into the sockets 337g and 337h, the third and fourth terminals 123c and 123d are inserted into the fifth and sixth sockets 337e and 337f, and the fifth and sixth terminals 123e and 123f are inserted. The first and second sockets 337c and 337d are inserted, and the seventh and eighth terminals 123g and 123h are inserted into the first and second sockets 337a and 337b, thereby providing a first connection terminal 120 and The second connection terminal 336 may be electrically and physically connected.

As such, since the first and second connection terminals 120 and 336 have a symmetrical structure and polarity, the light source unit 300 is physically and electrically regardless of the direction in which the coupling member 110 is coupled. Can be connected. Accordingly, the lighting device 1 according to the embodiment can more easily couple the light source unit 300 to the coupling member 110, thereby increasing the convenience of use.

Meanwhile, when the coupling member 110 and the light source unit 300 are coupled, the first and second terminals 123a and 123b and the seventh and eighth terminals 123g and 123h are used as connectors for power transmission. The third and fourth terminals 123c and 123d and the fifth and sixth terminals 123e and 123f may or may not be used as connectors for transmitting driving signals.

On the contrary, the third and fourth terminals 123c and 123d and the fifth and sixth terminals 123e and 123f may be used as connectors for power transmission, and the first and second terminals 123a and 123b may be used. The seventh and eighth terminals 123g and 123h may or may not be used as connectors for transmitting driving signals.

Although the first connection terminal 120 is a female block, the second connection terminal 336 is described as a male block, the first connection terminal 120 may be a male block, and the second connection terminal 336 may be configured as a female block. Do.

5. End cap (350)

12 is a view showing a coupling relationship between the light source unit 300 and the end cap 350 according to the embodiment. 13 is a view showing a state in which the end cap 350 is coupled to the light source unit 300 according to the embodiment.

As shown in FIG. 12, the end cap 350 may be coupled to both side ends of the light source unit 300. For example, the end cap 350 is coupled to both side ends of the intermediate body 330 by bolting to cover both ends of the first body 310, the second body 320, and the intermediate body 330. Can be installed.

One or more bolt holes 355 may be formed in the central portion of the end cap 350, and fasteners 335 may be formed at positions corresponding to the bolt holes 355 at both ends of the intermediate body 330. Accordingly, the end cap 350 may be coupled to the light source 300 by being fastened to the fastener 335 of the intermediate body 320 through the bolt 357 and the bolt hole 355.

As shown in FIG. 13, in order to prevent separation of the first body 310 and the second body 320, an inhibitor protrusion 351 may be formed at each of both upper ends of the end cap 350. The force acts on the first body 310 and the second body 320 in a direction pushing each other by the spring 340. When the gap between the first body 310 and the second body 320 to some extent by this force is fixed by the interference protrusion 351 is no longer opened. At this time, the angle between the first body 310 and the second body 320 has a maximum value by the interference protrusion 351.

In addition, a lower jaw 353 may be formed at the lower end of the end cap 350. When the end cap 353 and the light source unit 300 are coupled to each other, the prevention jaw 353 protrudes from the lower end of the end cap 350 so as to support a lower portion of the light source unit 300. Therefore, when the end cap 350 is coupled to the light source unit 300, the prevention jaw 353 may support the lower portions of the first body 310, the second body 320, and the intermediate body 330.

Since the light source unit 300 has a structure in which the first body 310 and the second body 320 move, a gap is formed between the lower ends of the first body 310, the intermediate body 330, and the second body 320. Can be formed. These gaps can cause light leakage. The prevention jaw 353 may be formed to surround the lower end of the light source 300 to block the light from leaking into the lower end of the first body 310, the second body 320, and the intermediate body 330.

As such, the end cap 350 and the light source unit 300 may be coupled to each other by a bolt fastening method so that the light source unit 300 may be more safely fixed and supported. In addition, the light source unit 300 may prevent light leakage by the bump 353.

6. Light source Desorption of the 300 and the coupling member 110

14 and 15 are views illustrating a process of coupling and separating the light source unit 300 and the coupling member 110 according to the embodiment.

1) Combined process

First, as shown in FIG. 14, the first body 310 and the second body 320 are applied by applying a first force F to the first body 310 and the second body 320 of the light source unit 300. Make the angle between them smaller. In this case, the first force F may be opposite to the direction of the elastic force applied by the spring 340. Pressing the lower ends of the third coupling portion 310a and the fourth coupling portion 320a while applying the first force F, the gap between the third coupling portion 310a and the fourth coupling portion 320a is narrowed. , The angle formed by the first body 310 and the second body 320 is reduced.

When the first force F is not applied, the first body 310 and the second body 320 are separated from each other by the elastic force provided from the spring 340, so that the light source 300 is coupled to the coupling member. It is difficult to insert into the first insertion groove 112 of (110).

Next, while applying the first force (F) to the first body 310 and the second body 320, the light source unit 300 is inserted into the first insertion groove 112 of the coupling member (110).

As shown in FIG. 15, when the first force F is not applied, the distance between the first body 310 and the second body 320 is further separated by the elastic force, and the upper end of the first body 310 is increased. The first protruding end 310c and the second protruding end 320c on the upper end of the second body 320 are caught after being inserted into the coupling grooves 113 formed on both inner sides of the first insertion groove 112, respectively. Accordingly, the light source unit 300 may be coupled to the coupling member 110.

In addition, when the light source unit 300 is coupled to the coupling member 110, the spring 340 disposed between the first body 310 and the second body 320 is the first body 310 and the second body ( Since the 320 pushes each other, the first protrusion 310c and the second protrusion 320c may be more firmly fixed to the locking groove 113.

In addition, a uniform pressure is continuously applied to the contact surface between the third coupling portion 310a and the fourth coupling portion 320a and the first insertion groove 112 by the spring 340. Accordingly, heat generated from the light source 300 may be more efficiently transferred through the contact surfaces of the third coupling portion 310a and the fourth coupling portion 320a 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, the first body 310 and the second body 320 are applied by applying a first force F to the first body 310 and the second body 320. After the small angle formed by the light source 300 is separated from the coupling member 110.

[ Variant ]

16 and 17 are sectional views of the light source unit and the coupling member of the lighting apparatus according to the modification. In the description of the lighting apparatus according to the modification, the description overlapping with the above description will be omitted.

16 and 17, a plurality of coupling grooves 113a, 113b, and 113c may be formed on an inner side surface of the first insertion groove 112 of the coupling member 110 of the lighting device. Although three coupling grooves 113a, 113b, and 113c are shown, they are not limited in number.

An upper portion of the light source unit 300 is inserted into and coupled to the first insertion groove 112. In this case, the first protruding end 310c and the second protruding end 320c formed at the upper end of the light source unit 300 are inserted into any one pair of grooves of the plurality of coupling grooves 113a, 113b, and 113c, and the light source unit 300 is provided. It can be firmly coupled to the coupling member 110.

As shown in FIG. 16, the formation depths of the plurality of coupling grooves 113a, 113b, and 113c may be formed differently from each other, and the protruding ends 310c and 320c may be formed of the plurality of coupling grooves 113a, 113b, and 113c. According to which of the grooves is inserted, the light distribution of the lighting device can be variously adjusted.

In addition, as shown in FIG. 17, the inner surface of the first insertion groove 112 has an inclination, and the inner surface of the first insertion groove 112 having the inclinations of the plurality of coupling grooves 113a, 113b, and 113c has an inclination. In the case where the protrusions 310c and 320c are inserted into the grooves of the plurality of coupling grooves 113a, 113b, and 113c, the first body 310 and the second body of the light source unit 300 may be formed. Since the angle formed by the 320 may change, the light distribution of the lighting device may be variously adjusted.

As described above, by forming the plurality of coupling grooves 113a, 113b, and 113c on the inner surface of the first insertion groove 112, the light distribution of the lighting apparatus can be variously adjusted. Accordingly, even when the width or curvature of the reflector 200 is changed, efficient lighting can be provided without replacing the light source unit 300.

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: housing
110: coupling member
200: reflector
300: light source
310: first body
320: second body
330: middle body
350: end cap
400: power drive unit

Claims (26)

housing;
A coupling member coupled to the housing;
At least one reflector coupled between the housing and the coupling member;
A light source unit coupled to the coupling member and having a light emitting element emitting light toward the reflector; And
An end cap coupled to the side end of the light source,
At least one first groove is formed on an inner wall surface of the housing,
At least one second groove is formed on the outer wall of the coupling member,
The first side of the reflector is coupled to the inner wall surface of the housing through the first groove,
And a second side of the reflector is engaged with an outer wall surface of the coupling member through the second groove. The method of claim 1,
And the reflector is formed to have a parabolic face. The method of claim 1,
It is installed on the space provided between the corner portion of the inside of the housing and the reflector, and further comprises a power driver for providing at least one of a power source and a drive signal to the light source unit when the light source unit and the coupling member is coupled, illumination Device. delete housing;
A coupling member coupled to the housing;
At least one reflector coupled between the housing and the coupling member;
A light source unit coupled to the coupling member and having a light emitting element emitting light toward the reflector; And
An end cap coupled to the side end of the light source,
The coupling member has a first insertion groove,
A first connecting terminal is installed in the first insertion groove,
The light source unit includes a first body, a second body and an intermediate body,
The first body has a third coupling portion coupled to the coupling member,
The second body has a fourth coupling portion coupled to the coupling member,
The intermediate body is installed between the first body and the second body, the lighting device having a second connecting terminal electrically connected to the first connecting terminal when the light source unit and the coupling member is coupled. The method of claim 5,
The light source unit,
Further comprising a spring to provide an elastic force to the first body and the second body between the first body and the second body, but providing an elastic force in a direction away from the first body and the second body, Lighting device. delete delete The method of claim 5,
Lighting device further comprises an auxiliary light source module installed on the lower bottom of the intermediate body. 10. The method of claim 9,
A third light emitting groove is formed on the lower bottom surface of the intermediate body,
An auxiliary light source module is installed in the third light emitting groove,
The auxiliary light source module,
A second substrate provided on a bottom surface of the third light emitting groove;
At least one auxiliary light emitting element provided on the second substrate; And
And a second optical structure installed on the auxiliary light emitting element. The method of claim 10,
And the second optical structure comprises at least one of a lens, a diffusion sheet, and a phosphor luminescent film (PLF). The method of claim 5,
Engaging grooves are formed on both inner wall surfaces of the first insertion groove,
The first protrusion is formed on the upper end of the third coupling portion,
A second protruding end is formed at the upper end of the fourth coupling part,
The first and second projecting ends and the second projecting end are inserted into the locking groove to engage the light source unit and the coupling member, the lighting device. The method of claim 5,
The third coupling portion and the fourth coupling portion,
And a contact area with an inner surface of the first insertion groove so that heat generated from the light source unit is transferred when the coupling member is coupled to the coupling member. The method of claim 5,
The end cap has a bump to prevent light leakage through the side end of the light source unit,
Illumination device formed with an interference protrusion to prevent the separation of the first body and the second body at both ends of the upper end of the end cap. The method of claim 5,
The end cap is bolted to the side end of the intermediate body, the lighting device. delete housing;
A coupling member coupled to the housing and having a first insertion groove;
A light source unit having a light emitting groove in which a light emitting device is disposed, the light source being detachably connected to the coupling member; And
An end cap coupled to the side end of the light source,
The light source unit has a third coupling portion coupled to one side of the first insertion groove and a fourth coupling portion coupled to the other side of the first insertion groove. The method of claim 17,
The light emitting groove is disposed below the light source unit,
The light emitting groove is a lighting device including a bottom surface and at least two or more sides on which the light emitting element is disposed. The method of claim 18,
The bottom of the light emitting groove is inclined, lighting device. The method of claim 18,
A lower portion of the light source unit radiates heat from the light emitting element. The method of claim 18,
Wherein the spacing between two sides of the light emitting groove is equal to or narrower than the width of the bottom surface of the light emitting groove. The method of claim 18,
The outer surface of the lower portion of the light source unit has a predetermined curvature or angled, lighting device. The method of claim 18,
The upper portion of the light source unit is connected to the coupling member, the lower portion has the light emitting groove,
The upper end of the end cap has an interference protrusion, the lower end has a prevention jaw,
The interference cap of the end cap is coupled to an upper portion of the light source unit, and the bump supports the lower portion of the light source unit. The method of claim 5,
A first light emitting groove is formed on one lower side of the first body, and a protruding first hinge portion is formed on the other lower side thereof.
A second light emitting groove is formed at one lower side of the second body, and a second hinge portion protruding is formed at the other lower portion thereof.
A second insertion groove is formed in the lower portion of the intermediate body,
The first body and the second body is coupled to the intermediate body by the first hinge portion and the second hinge portion is inserted into the second insertion groove. 25. The method of claim 24,
A light source module is installed in the first light emitting groove and the second light emitting groove;
The light source module,
First substrates disposed on bottom surfaces of the first light emitting groove and the second light emitting groove;
At least one light emitting element provided on the first substrate; And
A first optical structure installed on the light emitting device;
And a bottom surface of the first light emitting groove and the second light emitting groove are inclined toward the reflector, respectively. The method of claim 25,
And the first optical structure comprises at least one of a lens, a diffusion sheet, and a phosphor luminescent film (PLF).

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