KR101694996B1 - Lighting Device - Google Patents

Abstract

A lighting device according to an embodiment of the present invention includes a back cover part; A base portion extending vertically from one end of the back cover portion; And a protrusion extending from one end of the base portion; A light source unit disposed inside the case and disposed on a base portion of the case; A light guide plate disposed inside the case and optically coupled to the light source unit; A diffusion plate disposed below the light guide plate for diffusing light emitted from the light guide plate; A plurality of connectors disposed on at least one of an outer surface of the back cover portion and an outer surface of the base portion; And an intermediate connecting member electrically and mechanically coupled to at least one of the plurality of connectors, wherein the intermediate connecting member engages with another case abutting one side of the case, To an acute angle with respect to the base portion of the body.

Description

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus, and more particularly, to a lighting apparatus including a plurality of light emitting elements to implement light.

Generally, bulbs or fluorescent lamps are widely used as indoor or outdoor illumination lamps, and such bulbs or fluorescent lamps have a short life span and therefore frequently have to be replaced. In addition, the conventional fluorescent lamp has a problem that the illuminance gradually decreases due to deterioration over time of its use.

In order to solve such a problem, a lighting device using an LED capable of realizing excellent controllability, fast response speed, high electric light conversion efficiency, long lifetime, low power consumption and high luminance characteristics and emotional lighting has been developed.

On the other hand, in many cases, many lighting devices using LEDs are formed in a limited shape or shape depending on the structure of the installed space. Therefore, there is a demand for a lighting apparatus in which the use and spatial freedom can be increased with respect to the space or space in which the lighting apparatus is used.

An object of the present invention is to provide a lighting apparatus having a high degree of freedom in use space. The technical problems to be solved by this embodiment are not limited to the above-mentioned technical problems, and other technical problems which are not mentioned can be clearly understood from the following description to those skilled in the art It will be possible.

According to an embodiment of the present invention, there is provided an illumination device comprising: a case including an opening portion and including a seating groove on both inner sides; a light source portion disposed in a seating groove of the case; a light guide plate optically coupled to the light source portion; And a diffusing plate disposed on the light guide plate and diffusing light emitted from the light guide plate into the opening, wherein a plurality of connectors are attached to one side of the case, and at least one of the plurality of connectors is mechanically coupled to the intermediate connecting member .

In another embodiment according to the present invention, the lighting apparatus is formed of a single plate, wherein both ends of the plate are bent so as to face each other and have openings defined by both ends of the plate, And a plurality of LEDs arranged on one side of the substrate, wherein the LEDs are arranged in the first and second seating grooves of the case so that one side of the substrate faces each other Wherein the first and second light source portions are inserted into the first and second seating grooves, respectively, and light emitted from the plurality of LEDs is emitted to the opening portion, the first and second light source portions being disposed between the first and second light source portions, And a light guide plate disposed between the light guide plate and the opening to diffuse the light emitted from the light guide plate into the opening, And a reflecting plate disposed on the upper side of the light guide plate, wherein a plurality of connectors are attached to one side surface of the case, At least one of which is mechanically coupled to the intermediate connecting member.

In another embodiment according to the present invention, the illumination device includes a case including an opening and including a seating groove on both inner sides; A light source unit disposed in the seating groove; A light guide plate inserted into the case in the longitudinal direction of the case and optically coupled with the light source unit; A first lighting module and a second lighting module respectively inserted into the case in the longitudinal direction of the case and including diffusion plates disposed under the light guide plate, A first connector and a second connector attached to one side of a case included in the second lighting module, and a second connector adjacent to the first connector of the first lighting module, The second connector of the module is joined by an intermediate connecting member.

The lighting module according to the present invention improves the degree of freedom of use by using a connecting member for assembling a plurality of single lighting modules.

1 is a perspective view illustrating a structure of a lighting module according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a structure of a lighting module according to an embodiment of the present invention.
3 is a view for explaining a connection structure of a plurality of lighting modules according to an embodiment of the present invention.
4 is a view for explaining an intermediate connecting member for connecting a plurality of lighting modules according to an embodiment of the present invention.
5 is a sectional view for explaining the structure of a case according to an embodiment of the present invention.
6 is a view for explaining the structure and operation principle of a light source module disposed inside a case according to an embodiment of the present invention.

FIG. 1 is a perspective view illustrating a structure of a lighting module according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating a structure of a lighting module according to an embodiment of the present invention.

1 and 2, the lighting module 400 includes a case 200, a first light source unit 150A, a second light source unit 150B, a first light excitation film 170a, a second light excitation film 170b A light guide plate 110, a diffusion plate 190, a reflection plate 130, a first connector 300A, and a second connector 300B.

The case 200 is manufactured by extrusion-molding a plurality of flanges without being assembled and connected. In the case 200, both end portions of the plate are bent twice to form first and second seating grooves 202a and 202b in which the light source portion shown in FIG. 5 can be disposed. Both ends of the plate face each other, and openings 201 are defined by both ends of the plate. The case 200 has a uniform cross-section in which both sides are parallel to each other in the longitudinal direction of the case.

The first light source unit 150A and the second light source unit 150B each include substrates 151a and 151b and light emitting diodes 152a and 152b disposed on the substrate and one surface of the substrate on which the light emitting diodes are disposed And are inserted into the grooves of the first and second seating grooves 202a and 202b of the case so as to face each other. The light emitting diodes included in the first light source unit 150A and the second light source unit 150B are light emitting diodes that emit light having the same color but can emit light having different colors. Therefore, the emotional lighting device can be implemented because a combination of two different colors enables light of various colors. The light emitting diodes 152a and 152b may be light emitting diodes that emit at least one of blue, red, and green light.

Although not shown in the drawing, a light emitting diode can emit light having its own color by allowing the transparent resin to seal the light emitting diode on the top, but when emitting the original color, for example, In the case of a light emitting diode that emits light, a resin including a yellow-based phosphor on the upper portion may seal the blue light emitting diode and emit white light.

The light guide plate 110 is disposed in the optical path direction emitted from the first light source unit 150A and the second light source unit 150B and is inserted into the case in the longitudinal direction of the case 200. [ At this time, both ends of the light guide plate 110 are inserted into the first and second seating grooves 202a and 202b of the case, and the light emitted from the first light source unit 150A and the second light source unit 150B is transmitted through the opening 201).

The first photoexcitation film 170a and the second photoexcitation film 170b are disposed between the light guide section 110 and the first light source section 150A and the second light source section 150B, do. The first photoexcitation film 170a and the second photoexcitation film 170b can convert a part of the wavelength of the light emitted from the first light source part 150A and the second light source part 150B to change the color of light.

Although not shown in the drawing, the first photo-excited film 170a and the second photo-excited film 170b include a transparent resin and a fluorescent substance contained in the transparent resin. A curing agent or an additive may be contained in the transparent resin, the curing agent cures the transparent resin, and the additive disperses the fluorescent material evenly inside the transparent resin. In addition, a diffusion material may be included in the transparent resin, and the diffusion material improves the refraction of the light source to increase the excitation ratio of the fluorescent material.

The diffusion plate 190 is disposed between the light guide plate 110 and the opening 201 so as to diffuse the light emitted from the light guide plate 110 into the opening 201 and emits the light. At this time, both end portions of the diffusion plate 190 are inserted into the first and second seating grooves 202a and 202b of the case.

The reflection plate 130 is disposed on the light guide plate 110 to reflect the light emitted from the light guide plate 110 in the direction of the diffusion plate 190. At both ends of the reflection plate 130, 190 are inserted into the first and second seating grooves 202a, 202b of the case.

The first connector 300A and the second connector 300B are attached to the outer surface of the case 200. [ The outer surface of the case 200 may be the outer surface of the back cover 250 of the case and may be the outer surface of the first and second vertical base portions 210a and 210b as shown in FIG. However, preferably, the first connector 300A and the second connector 300B are attached to the center of both end portions in the longitudinal direction of the case from the outer surface of the back cover portion 250 of the case. The first connector 300A and the second connector 300B each include a plurality of engagement pins 301a and 301b arranged inside and outer casings 303a and 303b surrounding the plurality of engagement pins.

When at least one of the first connector 300A and the second connector 300B is mechanically coupled to the plurality of lighting modules 400 including the case 200, And is coupled with the member 500 to fix a plurality of illumination modules. However, when the lighting module is used as a single lighting device, any one of the first connector and the second connector may be an electrical connection path for supplying power to the lighting module, but a plurality of lighting modules may be arranged in a row The connector attached to the case end portion of the lighting module disposed outside may be a power supply connection passage.

Accordingly, the plurality of illumination modules become one illumination device, and the light emission area can be increased. In addition, the illumination module according to the embodiment of the present invention can be used as a lighting device itself because it is made of one single module in emitting light.

FIG. 3 is a view for explaining a connection structure of a plurality of lighting modules according to an embodiment of the present invention. FIG. 4 illustrates an intermediate connection member for connecting a plurality of lighting modules according to an embodiment of the present invention Respectively.

Referring to FIGS. 3 and 4, the lighting device is such that the first lighting module and the second lighting module are in contact with one another. Since the structure of the first illumination module and the second illumination module has been described before, a description thereof will be omitted. The joining method is performed by attaching the first connector 300A attached to the outer surface of the back cover part of the case 200 included in the first lighting module and the first connector 300A attached to the outer surface of the back cover part of the case 200 ' The second connector 300B is coupled by the intermediate connecting member 500. [

The intermediate connecting member 500 has a first insertion groove 511 and a second insertion groove 511 'formed on the same surface, and a second insertion groove 511' formed in each of the first insertion groove 511 and the second insertion groove 511 ' The outer case 303a of the first connector 300A and the outer case 303a of the first connector 300A are connected to the first insertion groove 511 and the first coupling groove 513 by a coupling pin 513 and a second coupling groove 513 ' And the outer case 303b 'and the coupling pin 301b' of the second connector are inserted into the second insertion groove 511 'and the second coupling groove 513', respectively, And the second lighting module are mechanically coupled and fixed.

5 is a sectional view for explaining the structure of a case according to an embodiment of the present invention.

The case 200 includes first and second vertical base portions 210a and 210b and first and second protrusions 230a and 230b which are bent and extended from one side of the first and second vertical base portions 210a and 210b, A second protrusion 230b and a back cover 250 extending from the other side of the first vertical base 210a and connected to the other side of the second vertical base 210b.

The first and second seating grooves 202a and 202b are formed on both inner sides of the case 200. The first and second protrusions 230a and 230b are opposed to each other with a gap therebetween, (201).

The first protrusion 230a and the second protrusion 230b of the case 200 are extended to the first and second vertical base parts 210a and 210b in a direction parallel to the back cover part 250 But tilts at an acute angle (? ≪ 90) with respect to each of the first and second vertical base portions 210a and 210b. Accordingly, the structure inserted into the first and second seating grooves 202a and 202b, that is, the diffusion plate, the light guide plate, and the reflection plate can be further fixedly supported.

Further, the material of the case 200 may be, for example, a metal such as aluminum and iron, and it is more preferable that the case can have an elastic force.

The first light source unit 150A, the second light source unit 150B, the first light excitation film 170a, the second light excitation film 170b, the light guide plate 110, A diffusion plate 190, and a reflection plate 130 is referred to as a light source module.

6 is a view for explaining the structure and operation principle of a light source module disposed inside a case according to an embodiment of the present invention.

The light source module 100 includes a light guide plate 110, a reflection plate 130, light sources 150A and 150B, photo-excitation films 170a and 170b, and a diffusion plate 190. As shown in FIG.

The light guide plate 110 converts a point light source into a surface light source, and a specific pattern 111 is formed on one surface of the light guide plate 110 so that light incident to the inside can be emitted to the outside. The specific pattern 111 diffuses or scatters light and emits it to the outside. The light guide plate 110 is made of transparent resin and can be printed by a silk screen printing method or the like.

A diffusion plate 190 may be disposed above the light guide plate 110. The diffusion plate 190 serves to uniformly emit light incident into the light guide plate 110 to the outside.

The reflection plate 130 is disposed below the light guide plate 110 and prevents light incident into the light guide plate 110 from being emitted to the rear of the light guide plate 110.

The light source units 150A and 150B are disposed on the side of the light guide plate 110 and the light source units 150A and 150B can emit light. In the embodiment of the present invention, the light emitting units 152a and 152b ) Is used. The light source units 150A and 150B include substrates 151a and 151b and a plurality of light emitting diodes 152a and 152b arranged on the substrates 151a and 151b and are optically coupled to the light guide plate 110, 150B are incident into the light guide plate 110.

The light excitation films 170a and 170b are disposed between the light guide plate 110 and the light source units 150A and 150B and include various fluorescent materials therein. These photo-excitation films 170a and 170b convert part of the wavelength of the light emitted from the light source units 150A and 150B to change the color of light.

Although not shown in the drawing, the light source portions 150A and 150B and the photoexciting films 170a and 170b are disposed in the inner seating grooves 202a and 202b of the case 200 described in FIG. Both ends of each of the light guide plate 110, the diffusion plate 190 and the reflection plate 130 are inserted and disposed in the internal seating grooves 202a and 202b of the case 200.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Light source module
110: light guide plate
130: reflector
150A: a first light source
150B:
170a: first light excitation film
170b: second light excitation film
190: diffuser plate
200: Case
300A, 300B: first and second connectors
400: Lighting module

Claims (11)

A back cover part; A base portion extending vertically from one end of the back cover portion; And a protrusion extending from one end of the base portion;
A light source unit disposed inside the case and disposed on a base portion of the case;
A light guide plate disposed inside the case and optically coupled to the light source unit;
A diffusion plate disposed below the light guide plate for diffusing light emitted from the light guide plate;
A plurality of connectors disposed on at least one of an outer surface of the back cover portion and an outer surface of the base portion; And
And an intermediate connecting member electrically and mechanically coupled to at least one of the plurality of connectors,
Wherein the intermediate connecting member is engaged with another case which is in contact with one side of the case,
Wherein a protrusion of the case is inclined at an acute angle with respect to a base portion of the case.
The method according to claim 1,
Wherein the light guide plate includes a plurality of patterns for diffusing or scattering the light emitted from the light source portion.
The method according to claim 1,
And a reflector disposed between the light guide plate and the back cover portion of the case.
The method according to claim 1,
And a light excitation film disposed between the light source and the light guide plate.
The method according to claim 1,
Wherein each of the plurality of connectors includes a plurality of engagement pins and an outer case surrounding the plurality of engagement pins,
Wherein the intermediate connecting member has a plurality of engaging grooves corresponding to the plurality of engaging pins and an inserting groove corresponding to the outer case.
A case having a first and a second seating groove formed by a single plate and bent at both ends of the plate so as to face the inner surface of the plate and having an opening;
First and second light sources each including a plurality of LEDs arranged on one side of a substrate and inserted into the first and second seating grooves of the case so that one side of the substrate faces each other;
A light guide plate interposed between the first and second light sources, wherein both ends of the light guide plate are inserted into the first and second seating grooves;
A diffuser plate disposed between the light guide plate and the opening to diffuse the light emitted from the light guide plate;
A reflecting plate disposed at both ends of the plate and inserted into the first and second receiving grooves, and disposed between the inner surface of the plate and the light guide plate;
A plurality of connectors disposed on an outer surface of the plate; And
And an intermediate connecting member electrically and mechanically engaged with at least one of the plurality of connectors,
And the intermediate connecting member engages with another case which abuts one side of the case.
The method according to claim 6,
Wherein each of the plurality of connectors includes a plurality of engagement pins and an outer case surrounding the plurality of engagement pins,
Wherein the intermediate connecting member has a plurality of engaging grooves corresponding to the plurality of engaging pins and an inserting groove corresponding to the outer case.
The method according to claim 6,
And a light excitation film disposed between the first light source part and the light guide plate and between the second light source part and the light guide plate.
A case having an opening and a seating groove; A light source unit disposed in the seating groove; A light guide plate inserted into the case in the longitudinal direction of the case and optically coupled with the light source unit; A first illumination module and a second illumination module each including a diffusion plate inserted into the case in a longitudinal direction of the case and disposed below the light guide plate;
A first connector and a second connector attached to one side of a case included in the first lighting module;
A first connector and a second connector attached to one side of the case included in the second lighting module; And
And an intermediate connecting member electrically and mechanically coupling with the first connector of the first lighting module and the second connector of the second lighting module adjacent to the first connector of the first lighting module,
Wherein one side of the case of the first lighting module and one side of the case of the second lighting module are in contact with each other.
10. The method of claim 9,
The case
A first base portion and a second base portion arranged to correspond to each other,
A first protrusion and a second protrusion extending from one side of each of the first and second base portions; And
And a back cover part extending from the other side of the first base part and connected to the other side of the second base part,
Wherein the first connector and the second connector are disposed on a rear surface of the back cover portion.
10. The method of claim 9,
Wherein each of the first connector and the second connector includes a plurality of engagement pins and an outer case surrounding the plurality of engagement pins,
Wherein the intermediate connecting member has an insertion groove formed on the same plane and a plurality of coupling grooves formed in the insertion groove,
The plurality of coupling pins of the first connector and the second connector are inserted into the plurality of coupling grooves of the intermediate connecting member,
And the outer case of the first connector and the second connector are inserted into the insertion groove of the intermediate connecting member.

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