KR101221196B1 - Led flat luminaires - Google Patents

Abstract

PURPOSE: An encased LED flat board lighting device is provided to install a slider to be slid along a rail groove on a frame, thereby easily adjusting a fixed position of a slider on a frame. CONSTITUTION: A light guide plate(10) uniformly transmits lights emitted by an LED module(40) to a whole surface. A diffusion plate(11) and a reflecting plate(12) are attached on a surface and a rear surface of the light guide plate. A back cover(20) is installed on a rear surface of the reflecting plate of the light guide plate. A frame(30) surrounds the light guide plate and an edge of the back cover for supporting. A rail groove(31) for guiding the sliding movement of a slider(60) is formed on a rear surface of the frame.

Description

Recessed LED Flat Light Fixtures {LED flat luminaires}

The present invention relates to an LED flat panel lighting apparatus, and more particularly, to a ceiling-mounted LED flat panel lighting apparatus that can be easily installed and installed in a ceiling or a wall of an interior, and can reduce production costs.

Various types of lamps are used to provide light at night or indoors or to illuminate an object. In particular, the lighting using LED as a light source saves energy because it consumes less power than incandescent lamps and fluorescent lamps, and unlike conventional light sources, it is a solid point light source that is solid, long-lasting and environmentally friendly. There is also a considerable advantage.

However, a simple combination of LED lamps emits optically clear monochromatic light, causing unpleasant glare and eye strain to the user. Therefore, when used as direct lighting or indirect lighting for indoor atmosphere, it is appropriate to have a light distribution suitable for the purpose. The combination of the lens or light guide plate is important.

Recently, the distance between the LED and the light guide plate that diffuses the light is properly maintained so that the light of the point light source generated from the LED is changed into the light of the surface light source (the light source that emits light in the plane) through the light guide plate. Has been developed and widely used.

For example, various embodiments of flat lighting have been proposed in Korean Patent Application Publication No. 10-2011-0035354, Korean Patent Application Publication No. 10-2011-0066014, Korean Patent Application Publication No. 10-2011-0113701, and the like.

In other words, such a flat lamp is composed of a light guide plate in close contact with a diffuser for scattering and reflecting light and a diffuser for diffusing light emitted from the outside, and an LED module provided on the side frame of the light guide plate to be irradiated from the LED module. The point light source is introduced into the side of the light guide plate and then emits light in the form of a surface light source by the light guide plate.

In addition, such a flat plate lighting is installed in the form of embedding a component such as a ballast for preventing the increase of current due to the shape of the flat plate is embedded in the ceiling.

However, conventional flat lamps are provided in a state where the ballast is fixed to a specific position on the back of the frame, such as embar, kering, etc., which are supported by hanging a finishing material such as gypsum board or plywood that forms the ceiling in the process of installing the ceiling. If there is interference with the base material structure existing in the place, the installation will be restricted.In this case, the operator separates the ballast from the frame one by one and moves it to the position where there is no interference with the structure. This is accompanied by very cumbersome and inconvenient work during installation, such as the ballast must be fixed to the frame again, there is a limit that can take additional work time.

In addition, in order to fix the ballast, it is necessary to use a tap or the like on the back of the frame to form a stepped hole for fixing the ballast by post processing.

In addition, in order to maintain the shape of the frame like a square frame, the corner caps are inserted into each corner, and the corner caps and the frames are fixed with bolts or screws. Since there is a problem that the production cost is high.

Republic of Korea Patent Publication No. 10-2011-0035354 (2011.04.06.) Republic of Korea Patent Publication No. 10-2011-0066014 (2011.06.16.) Republic of Korea Patent Publication No. 10-2011-0113701 (2011.10.18.)

Accordingly, the present inventors came up with the present invention while trying to develop a flat panel lamp which can reduce the production cost while being easy and easy to install and install on the ceiling or wall, with emphasis on solving the above-mentioned matters and problems.

Accordingly, it is an object of the present invention to provide a recessed LED flat panel lighting device that enables easy installation and easy installation of ceilings or walls in a room.

It is another object of the present invention to provide an embedded LED flat panel lighting apparatus which can reduce production costs by minimizing labor.

In order to achieve the above object, an embodiment of the present invention is a diffuser plate is attached to the surface to diffuse and emit light, the light guide plate is attached to the back surface scattering and reflecting light, and disposed on the back of the reflector plate of the light guide plate A plurality of frames having a back cover, a rim of the light guide plate and the back cover, and having a rail groove formed on a rear surface thereof, an LED module provided inside at least one or more of the frames to emit light according to power supply, and the frames A slider having a plurality of corner caps respectively coupled to neighboring corner portions to maintain a connected form of the frames, a slider having at least one through hole formed at a position corresponding to the rail grooves of the frames parallel to each other; Slidingly moveable inside the rail groove of the frames facing the through hole of the It provides a recessed type LED flat lighting device including at least one arm fixing member mounted in the mouth and at least one male fixing member screwed to the female fixing member through a through hole formed in the slider to restrain the movement of the slider. .

Thus, the present invention can easily adjust the position of the slider fixed to the frame arbitrarily and easily, regardless of the base material structure existing in the ceiling or wall of the room can be installed easily and easily, as well as a step for fixing the slider to the frame Since there is no need to process, it can shorten the labor time and reduce the working time, thereby reducing the production cost.

According to another embodiment of the present invention, a light guide plate having a diffuser plate for diffusing and emitting light on a surface thereof and a reflecting plate for scattering and reflecting light is attached to a rear surface thereof, a back cover disposed on a rear surface of the reflector plate of the light guide plate, and the light guide plate. And a plurality of frames having rail grooves formed on the rear surface of the frame and a back cover, and an LED module provided inside at least one or more of the frames to emit light according to a power supply, and the frames adjacent to each other. A slider having a plurality of corner caps coupled to each other to maintain a connected form of the frames, and a guide protrusion having a shape corresponding to the rail groove at both ends thereof so as to be slidably movable along rail rails of the frames parallel to each other; Is selectively contacted with the bottom surface of the rail groove of the frame through a screw hole formed in the Books can for restraining the movement of the slider to provide a recessed LED lighting fixture plate including a fixing member.

In another embodiment of the present invention, a cap fixing groove is formed on a rear surface of the frame adjacent to a rail groove, and both sides of the corner cap facing the end of the frame are inserted into the cap fixing groove and at least on the rear surface thereof. It is also possible to provide an embedded LED flat lighting device having a fixing protrusion having one or more fixing holes.

According to the present invention having the above-described solutions and configurations, the slider on which the ballast is fixed is slidably mounted along the rail groove of the frame. If it is not buried into the installation surface due to interference with the structure, the fixed position of the slider with respect to the frame can be easily adjusted with a simple operation of releasing the tightening state of the water fixing member. Therefore, it is easy and easy to install on the ceiling or the wall of the room, and the convenience according to the installation is improved, which can greatly shorten the working time.

In addition, the present invention, because the frame and the corner cap is coupled to each other by the cap fixing groove formed in the frame and the fixing projection formed in the corner cap, so as to process the screw holes for fixing the ballast and the corner cap on the back of the frame as in the prior art. There is no need to significantly reduce production costs.

1 is a block diagram showing a flat lighting device according to a first embodiment of the present invention.
2 is a local cross-sectional view showing a flat panel lighting mechanism according to a first embodiment of the present invention;
Figure 3 is a local perspective view showing a separation state of the frame and the corner cap of the flat panel lighting apparatus according to the first embodiment of the present invention,
Figure 4 is a local plan view showing a coupling state of the frame and the corner cap of the flat plate lighting apparatus according to the first embodiment of the present invention,
5 is a configuration diagram showing a state excluding the slider of the flat panel lighting apparatus according to the first embodiment of the present invention,
6 is a local cross-sectional view showing a flat lighting device according to a second embodiment of the present invention;

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions in the present invention, which specifies that the concept should be construed as a concept consistent with the technical spirit of the present invention and commonly used or commonly recognized in the art.

In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

The accompanying drawings are an exaggerated or simplified illustration of parts for convenience and clarity of explanation and understanding of the construction and operation of the technology, and each component does not exactly match the actual size.

Meanwhile, in the following description, when the present invention is installed in a structure such as a ceiling or a wall, a surface facing the structure is defined as the back surface, and a surface in which light is emitted from the opposite side thereof is defined as the surface.

≪ Embodiment 1 >

1 is a block diagram showing a flat panel lighting mechanism according to a first embodiment of the present invention, Figure 2 is a local cross-sectional view showing a flat panel lighting mechanism according to a first embodiment of the present invention.

As shown in FIG. 1 and FIG. 2, the flat lighting device 1 according to the first embodiment of the present invention is largely a light guide plate 10, a back cover 20, a frame 30, an LED module 40, It comprises a corner cap 50, a slider 60, a female fixing member 70 and a water fixing member 80.

The light guide plate 10 uniformly transmits the light emitted from the LED module 40 to the entire surface and serves to evenly emit light.

Here, a diffuser plate 11 for diffusing and emitting light is attached to the surface of the light guide plate 10, and a reflecting plate 12 for scattering and reflecting light is attached to the rear surface of the light guide plate 10.

That is, the light source generated from the LED module 40 positioned on the side of the light guide plate 10 is introduced into the light guide plate 10 and scattered and diffusely reflected while hitting the reflective plate 12 on the back side, and the light is diffused on the plate 11. Is released to the front through).

The light guide plate 10 may form a pattern of a predetermined shape by processing a dot printing method or a 'V' shaped groove.

The back cover 20 is disposed on the rear surface of the reflective plate 12 of the light guide plate to protect the back surface of the light guide plate 10 while preventing the light emitted through the light guide plate 10 from being lost to the rear surface.

The back cover 20 is formed of an aluminum plate or the like to maintain a shape surrounded by the frame 30 along with the light guide plate 10.

The frame 30 surrounds and supports the edges of the light guide plate 10 and the back cover 20.

And the rail groove 31 for guiding the sliding movement of the slider 60 is formed on the rear surface of the frame 30, the LED module 40 on the inner side of the surface facing the light guide plate 10 and the back cover 20. The light source unit of the space is formed to be stably inserted.

Here, the rail groove 31 is formed along the longitudinal direction of the frame 30 facing the slider 60, so that the female fixing member 70 is not separated from the rear surface of the frame 30 while being inserted therein. The edge width of the opening formed on the rear side of the frame 30 is formed to be narrower than the surface side.

3 and 4, the cap fixing groove 32 is formed on the rear surface of the frame 30 so as to be adjacent to the rail groove 31 and parallel to the rail groove 31.

Here, the cap fixing groove 32 is formed in a shape in which the edge width of the opening formed in the rear side of the frame 30 is narrower than the surface side so that the head of the fastening member such as a bolt is seated.

The frame 30 can be formed integrally with the rail groove 31 and the cap fixing groove 32 at the same time through a processing method such as aluminum extrusion, at least four are provided to each other using the corner cap 50 When combined, a rectangular frame is formed.

The LED module 40 is provided inside at least one of the frames 30 and serves to provide a light source according to external power supply.

Here, the LED module 40 may be formed of a structure in which a plurality of LED elements mounted on a PCB substrate emit light, and it is preferable to use a high brightness white LED (Light Emitting Diode) chip as a light source. Electroluminescence) may be used.

In addition, the LED elements of the LED module 40 are connected by a circuit wiring (not shown) on the PCB board, the end of which is connected to the power supply by a connector (not shown) to receive power or exchange electrical signals. And, of course, the LED module 40 may be provided with a heat dissipation member for dissipating heat generated from the LED element to the outside.

The LED device, which is a light source of the LED module 40, is provided in a uniformly arranged form on the PCB substrate to inject light evenly into the light guide plate 10, and thus, when the LED device of the LED module 40 emits light. Light incident into the light guide plate 10 is refracted and diffused in the light guide plate 10 to be uniformly emitted toward the outside of the surface.

Corner cap 50 is the frame 30 is arranged in the corner portion adjacent to each other is coupled to each frame 30 in an interference fit manner to maintain the combined state of the frame 30 in a certain form such as a square frame Do it.

Fixing protrusions 51 are provided at both sides of the corner cap 50 opposite the longitudinal side ends of the frame 30 to be inserted into the frame 30 through the lateral openings of the cap fixing grooves 32 of the frame. At least one fixing hole 52 screwed with a fastening member such as a bolt or a screw is formed on the rear surface of the fixing protrusion 51, that is, the surface facing the slider 60.

In addition, the corner caps 50 have a mounting hole 55 to pass through the threaded portion such as screws and the head is seated when the flat lighting device according to the present invention is installed on the ceiling or wall, etc., so as to maintain the installation state firmly. Are formed respectively.

The slider 60 is disposed on the rear surface of the frame 30 to fix an electric device component such as a ballast (B).

And both ends of the slider 60, that is, the body of the water fixing member 80 passes through the female fixing member (80) at positions corresponding to the rail grooves 31 of the frames 30 arranged in parallel with each other among the frames 30. At least one through-hole 65 is formed to be screwed with 70).

Like the frame 30, the slider 60 may be formed in a thin plate shape through a processing method such as aluminum extrusion.

At least one female fixing member 70 is slidably movable inside the rail groove 31 of the frames parallel to each other so that the female fixing member 70 is formed through the through hole 65 formed in the slider 60. 80 and optionally screwed together.

As the female fixing member 70, as shown in Figure 5, by adopting a hexagonal nut, etc. formed with a female thread inward, it is possible to move along the longitudinal direction of the frame inside the rail groove 31, but the water fixing member 80 ) And screwed together can be prevented from rotating at the same time or falling off the back.

That is, when the slider 60 with the ballast is fixed at a specific position with respect to the longitudinal direction of the frame 30, the body of the water fixing member 80 passes through the through hole 65 of the slider, and then the female fixing member ( 70, even if the screw is tightened by screwing the outer surface of the female fixing member 70 is not rotated by the contact interference with the inner surface of the rail groove 31, so that the coupling is naturally made by screwing, thereby the slider (60) ) Both ends of the frame 30 is in close contact with the rear surface of the frame 30 so that the slider 60 can be firmly fixed at a specific position with respect to the longitudinal direction of the frame 30.

The water fixing member 80 is screwed in correspondence with the female fixing member 70 through a through hole 65 formed in the slider 60, while being coupled and released from the female fixing member 70 according to the tightening direction thereof. Constrain the movement of the slider 60.

Here, as the water fixing member 80, as shown in FIG. 5, a conventional bolt or piece having a male screw thread formed on the outside may be employed.

The flat panel lighting device 1 according to the first embodiment of the present invention configured as described above is easy and easy to adjust the position of the slider 60 with respect to the frame 30 according to the conditions or the situation of the installation site. When installed on the wall, etc., it is possible to improve the convenience of the operator, and it is unnecessary to work on the tab, so that the labor cost and work time can be reduced, thereby reducing the production cost.

In addition, since the shapes of the frame 30 and the slider 60 are not complicated, extrusion processing is simple, and as a result, productivity and efficiency can be improved as well as reliability of quality.

≪ Embodiment 2 >

6 is a local cross-sectional view showing a flat panel lighting mechanism according to a second embodiment of the present invention.

As shown in FIG. 6, the flat lighting device 1 ′ according to the second embodiment of the present invention is largely provided with a light guide plate 10, a back cover 20, a frame 30, an LED module 40, and a corner cap. 50, the slider 60 and the water fixing member 80 are configured.

In particular, both ends of the slider 60 facing the frame 30 correspond to the cross-sectional shape of the rail groove 31 so as to be slidable along the rail groove 31 of the frames 30 arranged in parallel with each other. Guide protrusions 61 having a cross-sectional shape are formed, and guide protrusions in a direction orthogonal to the longitudinal direction of the rear surface of the frame 30 so that the water fixing member 80 can contact the bottom surface of the rail groove 31 of the frame. A screw hole 62 penetrating 61 is formed.

That is, the guide protrusion 61 is formed integrally formed at both ends of the slider 60 or coupled through a separate process to move along the rail groove 31, but is separated from the surface of the frame 30 toward the rear surface. It won't be.

And the body of the water fixing member 80 is screwed with the screw hole 62 formed in the slider, and selectively moves to the bottom surface of the rail groove 31 of the frame in accordance with the rotation operation direction of the movement of the slider 60 You will be constrained or released.

Here, the parts having the same or similar effects as those of the first embodiment among the components of the second embodiment of the present invention use the same reference numerals as the first embodiment, and a repetitive description thereof will be omitted.

The flat lighting device 1 'according to the second embodiment of the present invention configured as described above is a simple operation to loosen and retighten the screwing state between the water fixing member 80 and the screw hole 62 as in the first embodiment. Only the position of the slider 60 with respect to the frame 30 can be adjusted simply, easily, and in response to the situation or situation of the installation site. Therefore, it is possible to improve the convenience of the operator when installed on the ceiling or the wall of the room, and the conventional tap machining work is unnecessary, so that the labor cost and work time can be reduced, thereby reducing the production cost.

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 or constructions. Various changes and modifications may be made without departing from the scope of the invention. It is apparent to those skilled in the art that the present invention can be changed into another embodiment. Therefore, contents related to the modification and application of the features of the present invention should be construed as being included within the scope of the present invention.

10: Light guide plate 11: diffuser plate
12: reflector 20: back cover
30: frame 31: rail groove
32: cap fixing groove 40: LED module
50: corner cap 51: fixing protrusion
52: fixing hole 55: mounting hole
60: slider 61: guide protrusion
62: screw hole 65: through hole
70: female fixing member 80: male fixing member

Claims (3)

A light guide plate having a diffuser plate for diffusing and emitting light on a surface thereof, and a reflecting plate for scattering and reflecting light on a rear surface thereof;
A back cover disposed on a rear surface of the reflecting plate of the light guide plate;
A plurality of frames formed by surrounding the edges of the light guide plate and the back cover and having a rail groove formed on a rear surface thereof;
An LED module provided inside at least one of the frames to emit light according to power supply;
A plurality of corner caps each of which is coupled to a corner portion adjacent to each other to maintain the combined state of the frames;
A slider having at least one through hole formed at a position corresponding to rail grooves of the frames parallel to each other;
At least one arm fixing member slidably inserted into a rail groove of the frames facing the through hole of the slider; And
At least one water holding member screwed with the female fixing member through a through hole formed in the slider to restrain the movement of the slider;
Recessed LED flat lighting device comprising a.
A light guide plate having a diffuser plate for diffusing and emitting light on a surface thereof, and a reflecting plate for scattering and reflecting light on a rear surface thereof;
A back cover disposed on a rear surface of the reflecting plate of the light guide plate;
A plurality of frames formed by surrounding the edges of the light guide plate and the back cover and having a rail groove formed on a rear surface thereof;
An LED module provided inside at least one of the frames to emit light according to power supply;
A plurality of corner caps each of which is coupled to a corner portion adjacent to each other to maintain the combined state of the frames;
A slider having guide protrusions having a cross-sectional shape corresponding to the cross-sectional shape of the rail grooves at both ends thereof so as to slide along the rail grooves of the frames parallel to each other; And
A water holding member for selectively restraining movement of the slider while selectively contacting a bottom surface of the rail groove of the frame through a screw hole formed in the slider;
Recessed LED flat lighting device comprising a.
3. The method according to claim 1 or 2,
A cap fixing groove is formed on the rear surface of the frame adjacent to the rail groove, and on both sides of the corner cap facing the end of the frame, the cap fixing groove is inserted into the cap fixing groove and has at least one fixing hole on the rear surface thereof. Recessed type LED flat panel lighting fixture.

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