KR102188676B1 - LED lighting system with replaceable color change board - Google Patents

Abstract

The present invention relates to an LED lighting device including a replaceable color change board to replace a color board while maintaining existing products so that the colors of the lighting device are freely expressed with low cost and easy operation. The LED lighting device including the replaceable color change board according to the present invention includes: an LED package (10); a light guide plate (20) for dispersing and irradiating light emitted from the LED package; a frame (50) supporting an edge of the light guide plate and mounted with the LED package; and a color change board (60) installed between the LED package and the light guide plate and made of a plate shape providing a color to the light irradiated from the LED package, wherein the frame is configured such that two or more profiles (51) are connected to each other through a joint cap (52), and the profile includes a color-side storage rail (54) opened such that an end to which the joint cap is assembled among both ends in the longitudinal direction communicates with the outside, so as to allow the color change board to slide in the longitudinal direction, and the color change board is slidably assembled or separated and replaced on the color-side storage rail of the profile after the joint cap is removed.

Description

LED lighting system with replaceable color change board

The present invention relates to an LED lighting device, and more particularly, to an LED lighting device including a replaceable color change board for easy color expression of the LED package.

This part provides background information related to the content of the present application, and is not necessarily prior art.

LED lighting equipment was developed to solve the problems of conventional fluorescent lamps. It consumes only 20% of power than fluorescent lamps that use fluorescent materials, has a lifespan of 10 years, and does not use heavy metals such as lead or mercury. It has the advantage of not destroying it.

LED lighting devices use a light guide plate together, and are used as indoor lighting, interior, and advertisement panels by projecting light onto a light guide plate made of a plate-shaped translucent plastic or acrylic resin material through a light source of the LED.

A typical LED lighting device is an LED package as a light source, a light guide plate that disperses light irradiated from the LED package, a reflective sheet that reflects light from the rear of the light guide plate to the front, and diffuses and radiates light projected from the light guide plate from the front of the light guide plate. It is a configuration including a light diffusion plate.

LED lighting devices according to the related art are known for various products that express various colors, and as a color expression method, there are a color temperature control method, a color cover method, and the like.

Publication No. 10-2013-0034873 discloses a light guide plate provided with a light emitting diode connected to a power supply unit; A reflective plate provided on one surface of the light guide plate so that the light source emitted from the light guide plate is reflected and spreads throughout the light guide plate; A diffusion plate provided on the other side of the light guide plate and provided to diffuse the light source reflected by the reflection plate to the outside; And

It is disposed between one surface of the light guide plate and the reflective plate, is electrically connected to the power supply unit, and includes a color variable plate provided to vary the color temperature of the light source emitted from the light emitting diode.

Registered Patent No. 10-1056672 is formed on a metal PCB substrate in which a plurality of LEDs are mounted at regular intervals and has a hole corresponding to each of the LEDs to reflect light generated from each of the LEDs. A reflective plate integrally formed with the reflective plate and formed adjacent to each of the LEDs to reflect light generated from each LED at multiple angles, and a metal case on which the metal PCB substrate is mounted and has a stepped surface. , A transparent cover formed on a stepped surface of the metal case on which the metal PCB substrate is mounted to emit light emitted from the LED to the outside, and a top case fixing an edge of the transparent cover and an upper portion of the metal case, A diffusion cover made of an opaque material having a color color and configured to be detachably attached to the top of the top case with a regular distance from the top of the transparent cover, and fixing the diffusion cover to the top of the transparent cover It is a configuration including a fixing member fastened to the top case for.

The above patent documents require a lot of cost (manufacturing cost, replacement cost) for color expression, and therefore, it is difficult to activate the spread.

In addition, the patent document has a problem in that it is not possible to use an off-the-shelf product.

In addition, according to the prior art, due to the structure of the LED module, the frame, and the light guide plate, there is no way to prevent the light irradiated from the LED module from leaking to the surroundings, so that light leakage occurs. It incurs economic loss of having to use an LED module.

Publication Patent No. 10-2013-0034873 Registered Patent No. 10-1056672

The present invention is to solve the above-described problems, LED lighting device including a replaceable color change board that freely expresses the color of the lighting device at low cost and easy operation through replacement of the color board while maintaining a ready-made product It is intended to provide for that purpose.

Another object of the present invention is to transmit light irradiated from the LED package to the light guide plate without leakage.

An LED lighting device comprising a replaceable color change board according to the present invention includes an LED package; A light guide plate for dispersing and irradiating light emitted from the LED package; A frame supporting an edge of the light guide plate and on which the LED package is mounted; A color change board installed between the LED package and the light guide plate and made in a plate shape to give a color to the light irradiated from the LED package, and the frame is a color in which at least one side is open so that the color change board is inserted. It includes a side storage rail, the color change board is characterized in that the sliding assembly and separation to the color side storage rail of the profile is replaced.

According to the LED lighting device including the replaceable color change board according to the present invention, the color is transmitted to the light guide plate by passing the light irradiated from the LED package through the color change board by inserting the color change board between the LED package and the light guide plate. As a result, since the color change board is about the thickness of the light guide plate, the cost is lower than that of using a diffusion cover having a size similar to that of the conventional light guide plate as a color, and it does not require a separate control. Since it can be implemented very inexpensively, dissemination can be activated. That is, it is possible to disseminate LED lighting devices that express various colors simply and inexpensively without using LED packages of various colors.

And, in the case of a frame including a joint cap, various colors can be expressed for a long time through a simple and easy operation of removing the color change board from the frame after removing the joint cap and storing the color change board of a different color. You can use

In addition, by forming the receiving part of the color change board as a rail protruding from the surface of the frame (profile), it induces the light of the LED package to maintain straightness without leaking to the outside, thereby preventing light loss, so to compensate for light leakage. There is an effect of solving the irrationality of using a larger capacity LED package.

1 is a cross-sectional view showing the configuration of an LED lighting device including a replaceable color change board according to the present invention.
2 is a perspective view of a state in which the joint cap applied to the LED lighting device including the replaceable color change board according to the present invention is separated.
3 and 4 are a front perspective view and a rear perspective view of a state in which the joint cap is separated for showing the assembly state of the color key board applied to the LED lighting device including the replaceable color change board according to the present invention, respectively.
5 is a view showing another example of a profile applied to an LED lighting device including a replaceable color change board according to the present invention.
6 to 8 are images showing an example of expressing different colors through replacement of the color change board applied to the LED lighting device including the replaceable color change board according to the present invention, respectively.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

As shown in FIGS. 1 to 3, the LED lighting device 100 including the replaceable color change board according to the present invention uniformly distributes the light emitted from the LED package 10 and the LED package 10. The light guide plate 20 to be irradiated, a reflective sheet 30 disposed on the rear surface of the light guide plate 20 and reflecting light emitted from the light guide plate 20, a diffuser plate disposed on the front surface of the light guide plate 20 and diffuse light to the outside (40), including a frame (50) for supporting the configuration (20, 30, 40) such as the LED package 10, a cover 31 sequentially disposed on the rear surface of the reflective sheet 30, and the LED It is composed of a color change board 60 that imparts color to light emitted from the package 10 and transmits it to the light guide plate 20.

The LED package 10, the light guide plate 20, the reflective sheet 30, the cover 31, and the diffusion plate 40 may be the same as known products or all products that can be implemented from known products, so a detailed description thereof will be omitted, A novel configuration according to the present invention will be described in detail.

The frame 50 is the LED package 10 and the color change board 60 are accommodated and are coupled to the rims of the assemblies 30, 31, 32, 40 to protect them, and the profile 51 and the joint cap 52 ). Alternatively, the frame 50 may be composed of only a profile formed in the form of a frame without using the joint cap 52 (see FIG. 5).

For example, in the case of a rectangular lighting device, it consists of four straight profiles 51 and four joint caps 52, and the joint cap 52 is disposed at a corner of a square.

The profile 51 of FIG. 1 is a shape that covers both upper and lower sides (both front and rear based on a use standard) of the assemblies 20, 30, 40, and 31 based on the drawing.

The profile 51 includes a light-emitting side storage rail 53 so that a dummy of the LED package 10 is assembled toward the color change board 60, and also, a color for storing the color change board 60 It includes a side storage rail (54). The light-emitting side storage rail 53 is naturally formed by the color side storage rail 54.

The color side storage rail 54 is formed in the shape of a groove that opens toward one side between two chins, that is, the first and second rail chins 54a and 54b, next to the light-emitting side storage rail 53. 60) is inserted.

The first and second rail jaws 54a and 54b are respectively formed on both upper and lower sides (both front and rear based on a use standard) based on FIG. 1 to insert and support both upper and lower sides of the color change board 60.

The first and second rail jaws 54a and 54b have the same cross-section as a whole so that the color change board 60 is inserted and accommodated in the grooves therebetween, while the color change board 60 is slidably stored and withdrawn ( Extruded), and at least one side in the longitudinal direction is an open form that communicates with the outside when the joint cap 52 is separated.

The first and second rail protrusions 54a and 54b have a shape protruding from the surface of the profile 51, and in particular, the light emitted from the LED package 10 is transmitted only toward the light guide plate 20 and the diffusion plate 40 It is formed to protrude to a height that does not cover the circumferential side of the light guide plate 20 so that it cannot be transmitted to, and supports at least one of the front and rear sides of the rim of the light guide plate 20 and also supports the LED package 10 and the diffusion plate 40. Each side is covered and supported, and through this protruding structure, the light irradiated from the LED package 10 does not leak to the surroundings, and the light is concentrated to the light guide plate 20 so that the LED package 10 with a large capacity is not used. It expresses high illuminance.

In addition, the first rail protrusion 54a disposed relatively outside forms a light-emitting side storage rail 53 in which the LED package 10 is accommodated, and also functions to support the LED package 10 (dummy).

The joint cap 52 is assembled with the adjacent profiles 51 to connect the profiles 51, and preferably, the color change board 60 is assembled into a fitting type or a piece to facilitate replacement.

The joint cap 52 is assembled on the profile 51 to prevent light from leaking, and when separated from the profile 51, the lengthwise ends of the color change board 60 and the LED package 10 are exposed to the outside.

The joint cap 52 is preferably composed of a box-shaped cap body 52a, a fastening part 52b that is protruded from the cap body 52a and inserted into a fastening groove 51a formed in the profile 51, Here, a locking protrusion 52c for elastic fastening of the fastening portion 52b is further included.

The fastening part 51b is not specifically limited as it can be of various shapes and structures, and the locking jaw 52c has an elastic behavior on more than one side of the fastening part 51b, that is, toward the inside and the outside of the fastening part 51b. It is composed of an elastic movement structure capable of movement to increase the binding force between the joint cap 52 and the profile 51.

In addition, a board support portion 52d is included to stably support the color change board 60 without shaking according to the present invention.

The board support portion 52d is formed protruding from, for example, a portion of the circumferential portion of the cap body 52a facing the color change board 60 to support both sides of the color change board 60 in the longitudinal direction. That is, since the color side storage rail 54 supports only the front and rear sides of the color change board 60, the left and right movement cannot be prevented, and the left and right movement can be prevented by the board support 52d.

The board support 52d may have a structure further having a groove into which the color change board 60 is inserted.

5 shows another example of the profile 51, an example in which the joint cap 52 described above is not used, and the profile 51 is below the drawing reference of the assembly 20,30,40,31 (use As a reference, the front side) is covered and supported, and in this case, the first and second rail chins 54a and 54b of the color side storage rail 54 are formed only on one side of the profile 51 to form the color change board 60 Support only one side of Even in this case, the first and second rail protrusions 54a and 54b support the LED package 10, the light guide plate 20, and the diffusion plate 40, similarly to the shape formed on both sides of the profile 51 as described above. . In this specification, when the cover 31 is removed, the color change board 60 is exposed.

The color change board 60 is to give the color of light irradiated through the light guide plate 20 and the diffusion plate 40, and the present invention replaces the LED package 10 and the color layer and the color change of the light guide plate 20 Color expression of the lighting device is possible only by replacing the color change board 60 having a color suitable for the lighting device without using a method such as material treatment. 6 to 8 are images showing an example of expressing colors through replacement of the color change board 60. That is, FIG. 6 uses a red color change board 60, FIG. 7 uses a yellow color change board 60, and FIG. 8 uses a color change board 60 having various colors sequentially. .

The color change board 60 is preferably made of any one material from the group including polycarbonate, and may be treated in a different way to block blue light.

In order to reduce frictional resistance with the first and second rail ledges 54a and 54b, when the color change board 60 is stored and separated by sliding, the first and second rail ledges 54a and 54b are opposite to each other. For example, there may be more than one hemispherical projection.

The protrusion may be attached to the color change board 60 with an elastic body such as rubber, and it is also possible to support the color change board 60 so that it does not shake at the first and second rail jaws 54a and 54b through its own elasticity. Do.

In addition, the color change board 60 may be configured with a gripping portion on one or more of both sides in the length direction to facilitate separation. The gripping portion has a shape that protrudes or is exposed to the outside from the profile 51, and has a shape of a groove or hole into which a finger is inserted.

The operation of the LED lighting device including the replaceable color change board according to the present invention is as follows.

1. Use of lighting devices.

When power is applied, the LED package 10 irradiates light, and this light is emitted to the outside through the color change board 60-the light guide plate 20-the diffusion plate 40.

In this process, light of a color different from the color of the LED package 10 is emitted to the outside through its own color of the color change board 60.

2. Color conversion.

When changing the color of the lighting device, the joint cap 52 is separated from the profile 51.

When the joint cap 52 is removed, the end of the profile 51 is opened so that the end of the color change board 60 is exposed to the outside.

When the end of the color change board 60 is grasped and pulled, the color change board 60 is drawn out between the first and second rail jaws 54a and 54b.

Accordingly, the color-side storage rail 54 is an empty space, and the color change board 60 of a different color is inserted into the entrance of the color-side storage rail 54, which is an empty space, and is pushed to the opposite side for storage.

After completing the storage of the color change board 60, the joint cap 52 is assembled to the profile 51.

In the case of a frame-shaped frame that does not use a joint cap, the color change board 60 is replaced with a different color after removing the cover 31.

On the other hand, the LED lighting device of the present invention installs the LED package 10 at two places of the periphery of the light guide plate 20, and installs the color change board 60 only on one of the LED packages 10, and Two modes can also be expressed through control of lighting only the LED package 10 without the board 60 or lighting only the LED package 10 with the color change board 60 installed.

10: LED package, 20: light guide plate
30: reflective sheet, 31: compression sponge
32: cover, 40: diffusion plate
50: frame, 51: profile
52: joint cap, 53: light-emitting side storage rail
54: color side storage rail, 54a, 54b: first, second rail chin
60: color change board,

Claims (6)

An LED package 10;
A light guide plate 20 for dispersing and irradiating light emitted from the LED package;
A diffusion plate 40 disposed on the front surface of the light guide plate 20 and diffusing light to the outside;
A frame 50 supporting the edge of the light guide plate and on which the LED package is mounted;
It is installed between the LED package and the light guide plate and made of a plate shape, and includes a color change board 60 for imparting a color to light irradiated from the LED package,
The frame includes a color side storage rail 54 whose one or more sides are open so that the color change board is inserted,
The color change board is assembled and separated by sliding on the storage rail on the color side of the frame and replaced,
The collar side storage rail includes first and second rail jaws (54a, 54b) that are spaced apart from each other at a predetermined interval and protrude from the surface of the frame to form a groove into which the color change board is inserted, and the first Among the first and second rail jaws 54a and 54b, a first rail jaw adjacent to the LED package forms a light-emitting side storage rail in which the LED package is accommodated between the wall of the frame and slides the LED package. Storage,
The first and second rail protrusions 54a and 54b are formed to protrude to a height that does not cover the circumferential side of the light guide plate so that light emitted from the LED package is transmitted only toward the light guide plate and cannot be transmitted to the diffusion plate. LED lighting device comprising a replaceable color change board, characterized in that configured to cover a side surface of the diffusion plate while supporting at least one of the front and rear surfaces of the edge of the light guide plate. delete delete delete The method according to claim 1, wherein the frame is composed of two or more profiles (51) connected to each other through a joint cap (52), and the profile is configured such that an end to which the joint cap is assembled among both ends in the longitudinal direction communicates with the outside. LED lighting device comprising a replaceable color change board, characterized in that configured to support the color change board while being opened, the joint cap is assembled to the profile. The LED lighting apparatus of claim 5, wherein the color change board is made of polycarbonate to block blue light.

Images