KR101055176B1 - LED lighting device - Google Patents

Abstract

According to the present invention, the inner space forming portion 112 is formed in the center portion, the outer space forming portion 114 is formed around the outer portion to form a second space portion 113 with the inner space forming portion 112. A first case 110 formed; A first LED light source module 120 formed along an outer side surface of the inner space forming unit 112; And a second LED light source module 130 formed along an inner side surface of the outer space forming unit 114.

LED, lighting, reflection

Description

LED lighting device {LED ILLUMINATING DEVICE}

The present invention relates to an LED lighting apparatus, and more particularly, to an LED lighting apparatus that can illuminate a predetermined region by using a light emitting diode (LED) as a light source.

Generally, lamps used in daily life include fluorescent lamps, incandescent lamps, and the like. Such a lamp is operated by an AC power source and has a disadvantage in that the power consumption and the luminance are high, but the lifetime and the luminance of the lamp are deteriorated when the lamp is operated for a long time.

For example, a guide light installed to display emergency exits and the like around stairs and doors of a building is to easily inform people of letters or symbols displayed on the front panel even in a dark place. Letters or symbols are brightly and clearly displayed even in the dark by a lamp mounted inside. Induction lamps are lit for a long time for this purpose.

However, since a fluorescent lamp or an incandescent lamp is mounted in the conventional induction lamp, the lamp in the induction lamp must be replaced due to the deterioration of the life and the brightness of the lamp after a certain time. As such, due to the short lifespan, once the lamp is replaced, the lamp has to be replaced without being used for less than a year, and therefore, a huge cost due to the lamp replacement is required.

Accordingly, recently, lighting apparatuses using LEDs having low operating voltage, fast response speed, small size, and long operating life have been developed.

Figure 1 discloses a configuration and operation principle of a conventional LED lighting device. As shown in FIG. 1, the conventional LED lighting apparatus 10 includes a case 11 having a rectangular shape and mounted inside the case 11 along the circumference of the case 11 to emit light laterally toward the center portion C. FIG. And a light guide plate 12 positioned inside the case 11 and reflecting light emitted from the LED module 13 in a direction to be illuminated (arrow direction in FIG. 1). It became.

However, when the conventional LED lighting apparatus 10 is manufactured in a medium and large size, light emitted from the LED module 13 mounted inside the case 11 even when the LED module 13 having high brightness is used. Since the amount of light emitted from the center portion C is not reached until the center portion C portion is relatively small compared to the amount of light emitted from the outer portion near the case 11, the conventional LED lighting apparatus 10 The light emitted from) is bright in the outer part and dark in the center. In addition, since the conventional LED lighting apparatus 10 is manufactured in a rectangular shape, the light emitted from the LED module 13 mounted on the side surface of the case 11 and the LED module mounted on the upper or lower surface thereof. Each corner portion of the case 11 where the light emitted from 13 overlaps each other has a relatively high luminance. That is, the conventional LED lighting device 10 has a problem that it can not provide a light source having a uniform amount of light as a whole.

In addition, since a power supply (not shown) for supplying power to the LED lighting device 10 is mounted on the outside of the lighting device 10 or embedded in the ceiling, the size or thickness of the LED lighting device 10 is generally increased. There was a problem in that a groove for increasing or embedding the power supply device should be formed in the ceiling.

On the other hand, when the power supply device is mounted inside the LED lighting device, the light source is not installed in the portion where the power supply device is mounted, there is a problem that the central portion of the emitted light is emitted in a dark state (square area) .

The present invention was created in order to solve the above-described problems, and the LED light source modules are provided on the inner and outer sides of the case, respectively, so that not only can be illuminated with a uniform amount of light, but also the power supply device is mounted in the inner space. The purpose is to provide an LED lighting device that can be manufactured in the form.

In the LED lighting apparatus according to the present invention for achieving the above object, the inner space forming portion 112 is formed in the center portion, the second space portion 113 together with the inner space forming portion 112 around the outer portion. A first case 110 in which an outer space forming unit 114 is formed to have a shape; A first LED light source module 120 formed along an outer side surface of the inner space forming unit 112; And a second LED light source module 130 formed along an inner side surface of the outer space forming unit 114.
In addition, the light emitting device may further include a first LED light controller 140 disposed in the second space part 113 and controlling the light emitted from the first LED light source module 120 and the second LED light source module 130.
Here, the first LED light control unit 140 includes a light guide plate 142 for reflecting light incident from the first LED light source module 120 and the second LED light source module 130 in an illumination direction.
In addition, the reflector plate 141 is disposed under the light guide plate 142 and reflects light incident from the first LED light source module 120 and the second LED light source module 130 toward the bottom surface 115; Alternatively, the light guide plate 142 may further include a diffuser plate 143 that uniformly diffuses light by scattering light incident from the light guide plate 142.
On the other hand, it may further include a second case 150 coupled to the inner space forming unit 112.
In addition, a third space portion may be further formed on one side of the second case 150, and may further include a third LED light source module 160 installed along a circumference of the inner surface of the third space portion 153. . (The third LED light source module 160 is EDGE type)
In addition, it may further include a second LED light control unit 170 is inserted into the third space portion 153, and controls the light incident from the third LED light source module 160.
Here, the second LED light controller 170 includes a light guide plate 172 for reflecting light incident from the third LED light source module 160 in an illumination direction.
The second LED light controller 170 may include a reflector 173 disposed under the light guide plate 172 and reflecting light incident from the third LED light source module 160 toward the bottom surface 154; Alternatively, the light guide plate 172 may further include a diffuser plate 171 that scatters light incident from the light guide plate 172 and uniformly diffuses the light.
On the other hand, a third space portion is further formed on one side of the second case 150, the third LED is installed on the bottom surface 154 of the third space portion 153, and emits light in the forward direction in the illumination direction The light source module 160 may further include. (The third LED light source module 160 is a direct type)
In addition, it may further include a second LED light control unit 170 is inserted into the third space portion 153, and controls the light incident from the third LED light source module 160.
Here, the second LED light controller 170 reflects light incident from the third LED light source module 160 toward the bottom surface 154 on the bottom surface 154 of the third space part 153. Reflecting plate 173; Alternatively, the light emitting device may further include a diffusion plate 171 covering the third LED light source module 160 and scattering light incident from the third LED light source module 160 to uniformly diffuse the light.
In addition, the inner space forming part 112 forms a first space part 111 therein, and a protrusion corresponding to an inner surface of the inner space forming part 112 on the other side of the second case 150. 151 is formed, the outer side of the protrusion 151 of the second case 150 may be inserted into the inner space forming part 112 by a forced press.
In addition, one end of the outer space forming unit 114 is provided with a ring-shaped fixing frame 116 corresponding to the edge of the first case 110, the fixing frame 116, the first LED The light controller 140 may support one end of the first LED light controller 140 to be fixed in the second space 113.
In addition, the first case 110 and the second case 150 has a polygonal or circular shape, and the first LED light control unit 140 corresponds to the first case 110 and the second case 150. It is preferably formed in the center portion is formed in the through-hole through which the inner space forming portion 112 is inserted.

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According to the LED lighting device according to the invention,

First, the LED light source module is provided on the inside and the outside of the case, respectively, to provide an effect of illuminating a predetermined area with a uniform amount of light as a whole.

Second, by providing a separate space in the central portion in which the power supply device is mounted, it is possible to reduce the size or thickness of the LED lighting device can provide a slim type lighting device.

Third, since the power supply device is mounted inside, when the replacement of the conventional fluorescent lighting device is installed, it is not necessary to drill a groove for embedding the power supply device in the ceiling, thus not only damaging the ceiling but also the installation process. This is simple.

Fourth, since a plurality of LED light source modules are mounted on the inside and the outside of the case, respectively, when each LED light source module emits a different color, it is illuminated in a mixed color than a conventional LED lighting device The effect of providing an illumination color of can be realized.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

2 is a perspective view showing the external configuration of the LED lighting apparatus of the present invention, Figure 3 is a plan view showing the external configuration of the LED lighting apparatus of the present invention, Figure 4 is a side view showing the external configuration of the LED lighting apparatus of the present invention, Figure 5a 3 is an enlarged view showing an enlarged view of D of FIGS. 5A and 5D, FIG. 5C is an exploded cross-sectional view showing an internal configuration of the LED lighting apparatus of the present invention, and FIG. 5D is a third LED of the present invention. 5E is a cross-sectional view showing an enlarged view of E of FIG. 5D, FIG. 5F is an isolated cross-sectional view showing a configuration according to another embodiment of a third LED light source module of the present invention, and FIG. Figure 7a is an exploded perspective view showing the internal and external configuration of the LED lighting apparatus, Figure 7a is a plan view showing the internal configuration of the LED lighting apparatus of the present invention, Figure 7b is an enlarged view showing an enlarged F of Figure 7a, Figure 8 is the present invention Plan showing the configuration of the second case , Side view and back view.

As shown in Figure 2 to 8, the LED lighting device 100 according to an embodiment of the present invention, the first case 110, the first LED light source module 120, the second LED light source module 130 And a first LED light controller 140 and a second case 150.

First, the first case 110 is formed in a plate shape, but the illumination direction (A: see FIG. 4) so that the first space portion 111 into which the power supply unit (not shown) is inserted is formed in the center portion. The inner space forming part 112 is formed to protrude, and the outer space forming part 114 protruding in the illumination direction A is formed around the outer part so that the second space part 113 is formed.

Here, the power supply unit supplies power to drive the LED lighting device 100 of the present invention, the first space 111 is preferably formed in consideration of the size and shape of the power supply.

In addition, the second space portion 113 is a space in which the first LED light control unit 140 is inserted and disposed, and has the second space unit 113 according to the thickness and shape of the first LED light control unit 140. The form may vary. In addition, as shown in FIG. 4, the illumination direction A refers to a direction toward a predetermined region to be illuminated by using a light source of the LED lighting apparatus 100 of the present invention.

As shown in FIGS. 5C, 6, 7A, and 7B, the first LED light source module 120 is mounted around the outer side surface of the inner space forming unit 112, but the outer space forming unit 114 is disposed. The LED light source module for emitting light in the direction, the second LED light source module 130 is mounted around the inner side surface of the outer space forming portion 114, but the light toward the inner space forming portion 112 LED light source module that emits light.

Here, the light emitted through the first LED light source module 120 and the second LED light source module 130 is controlled by the first LED light control unit 140, that is, reflected, scattered and / or diffused to the illumination direction A To diverge).

That is, the first LED light source module 120 and the second LED light source module 130 are mounted at positions complementary to each other so that the light source of the LED lighting device 100 of the present invention has a uniform amount of light.

In addition, the color of the light emitted from the first LED light source module 120 and the second LED light source module 130 may be provided in various colors according to the use and purpose of the LED lighting device 100 of the present invention. to be.

Furthermore, in the LED lighting device 100 of the present invention, as described above, since the first LED light source module 120 and the second LED light source module 130 for emitting light are mounted at positions separated from each other, the two LED light sources. When the modules 120 and 130 emit different colors, the modules 120 and 130 are illuminated with a mixed color, thereby realizing an effect of providing illumination colors of more various colors than the conventional LED lighting devices.

The first LED light control unit 140 is disposed in the second space portion 113, and is mounted between the first LED light source module 120 and the second LED light source module 130, the first LED light source module ( The light incident from the 120 and the second LED light source module 130 is controlled in the illumination direction A, i.e., reflects, scatters, and / or diffuses light.

Here, the first LED light controller 140 is disposed on the bottom surface 115 of the first case 110, as shown in Figures 5a to 5c and 6, the first LED light source module 120 and The reflector plate 141 reflects light incident from the second LED light source module 130 toward the bottom surface 115, and is disposed on one side of the reflector plate 141 and the first LED light source module 120 and the second LED. A light guide plate 142 for reflecting light incident from the light source module 130 and the reflecting plate 141 in the illumination direction A, and disposed on one side of the light guide plate 142 and is incident from the light guide plate 142. It may be provided to include a diffuser plate 143 to scatter the light to uniform the color and brightness of the illumination.

In addition, the first LED light control unit 140 is disposed on one side of the diffusion plate 143 and increases the luminance by concentrating the incident light in a scattered state through the diffusion plate 143. And a dummy sheet (not shown) disposed on one side of the prism sheet or the diffusion plate 143 to cover the prism sheet or the diffusion plate 143 from the outside. It may be provided by.

Here, the dummy sheet is located on one side of the prism sheet or the diffusion plate 143, that is, the outermost side of the first LED light control unit 140, and dust and moisture that may flow into the LED lighting device 100. Blocks foreign substances such as, etc., and protects the first LED light control unit 140 from an external impact.

As shown in FIGS. 5A to 5F, the second case 150 is inserted into and coupled to an upper portion of the first space 111 so that the first space 111 is sealed, and one side thereof is one direction. The third LED light source module 160 for emitting light is mounted.

Here, a protruding portion 151 having a size and a shape corresponding to an inner surface of the inner space forming part 112 is formed on one side of the second case 150, and the inside of the inner space forming part 112 is formed. The outside of the protruding portion 151 of the second case 150 is inserted and coupled by force.

As such, since the inner space forming part 112 and the protrusion 151 are fastened by a forced press, the first case 110 and the second case 150 are coupled without a separate fastening member such as a screw and a nut. The durability of the LED lighting device 100 can be increased.

In addition, as the first space 111 provided between the first case 110 and the second case 150 is fastened by a forced press of the inner space forming portion 112 and the protrusion 151. Since it is sealed, the power supply unit mounted in the first space 111 may be protected from external moisture or moisture.

In addition, a fixed frame 116 having a size and shape corresponding to an edge of the first case 110 is fixed to one end of the outer space forming unit 114, and the fixed frame 116 is The first LED light control unit 140 is provided to support one end of the first LED light control unit 140 to be fixed in the second space part 113.

In addition, the edge portion of the second case 150 is provided with a support portion 152 protruding to support the other end of the first LED light control unit 140.

Therefore, the first LED light control unit 140 is firmly supported by the fixed frame 116 and the support unit 152 so that one end and the other end thereof are not flown in the second space 113. It can be fixed.

Here, the LED lighting device 100 of the present invention, the third LED light source module 160 and the side light emitting type that emits light in the lateral direction, such as the first LED light source module 120 and the second LED light source module 130 and In addition, the light may be mounted in a forward light emission type in which light is directly emitted in the illumination direction A without refraction.

First, an embodiment in which the third LED light source module 160 is configured as a side emission type will be described. 5A to 5C, a third space part 153 into which the third LED light source module 160 is inserted is formed on one side of the second case 150, and the third LED light source module 160 is mounted around the inner surface of the third space portion 153, and emits light toward the center of the third space portion 153, the third LED light source module 160 in the interior of the air. A second LED light control unit 170 is inserted and disposed to control, i.e., reflect, scatter and / or diffuse light incident from the illumination direction A.

As shown in FIGS. 5A through 5C, the second LED light controller 170 is disposed on the bottom surface 154 of the third space part 153 and is disposed from the bottom surface (from the third LED light source module 160). Reflector 173 for reflecting light incident in the direction 154 toward the illumination direction A, and light disposed on one side of the reflector 173 and incident from the third LED light source module 160 and the reflector 173. A light guide plate 172 reflecting light in the illumination direction A and a diffuser plate disposed on one side of the light guide plate 172 and scattering light incident from the light guide plate 172 to make the color and brightness of illumination uniform. 171 may be provided.

 As described above, the light emitted from the third LED light source module 160 is incident on the light guide plate 172 to have the light guide plate 172 in the same manner as the first LED light source module 120 and the second LED light source module 130. The light is reflected in the illumination direction A by the reflection pattern and is incident to the diffusion plate 171. In addition, the light incident on the diffuser plate 171 is emitted in a scattered state by the diffuser plate 171.

Next, an embodiment in which the third LED light source module 160 is configured as a forward light emission type will be described.

5D to 5F illustrate an embodiment in which the third LED light source module 160 is mounted in a forward light emission type. 5D to 5F, a third space part 153 into which the third LED light source module 160 is inserted is formed on one side of the second case 150. The third LED light source module 160 is inserted into and mounted in the third space part 153, and emits light in a forward direction in the illumination direction A, and one side surface of the third LED light source module 160. The diffuser plate 171 may be mounted to scatter light incident from the third LED light source module 160 to uniform color and brightness of illumination.

Therefore, in the LED lighting device 100 of the present invention, since the light source is emitted by the third LED light source module 160 in the portion (second case 150) in which the power supply unit is mounted, light is emitted in a predetermined area to be illuminated. It is possible to realize the effect that no blind area does not occur.

Meanwhile, the first case 110 and the second case 150 are formed in an octagonal shape, and the first LED light control unit 140 is formed in an octagonal shape, and the inner space forming unit 112 is formed at the center portion thereof. It may be provided to form a through-hole having an octagonal shape is inserted through, the first case 110 and the second case 150 is formed in a circular shape, the first LED light control unit 140 The through hole may be formed in a circular shape but have a circular shape in which the inner space forming part 112 is inserted through the center part.

Here, the first case 110, the second case 150 and the first LED light control unit 140 is formed in the form of an octagonal or circular, the first LED light source module 120 and the first The blind spot where the light emitted from the 2LED light source module 130 does not reach may be minimized.

The first case 110, the second case 150, and the first LED light controller 140 may be formed in an octagonal shape or a circular shape as described above, but are not limited thereto. It may be provided in various forms in consideration of the amount of light and the light efficiency of the light source emitted from the module 120 and the second LED light source module 130.

Through the configuration of the LED lighting device 100 of the present invention as described above, it is possible to provide a uniform lighting amount as a whole, as well as to reduce the size or thickness of the LED lighting device to provide a slim type lighting device. Can be.

In addition, when installed in place of the conventional fluorescent lighting device, it is not necessary to drill a groove for embedding the power supply in the ceiling, not only damage the ceiling but also can implement the effect of simplifying the installation process.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a perspective view showing the configuration and operation principle of a conventional LED lighting device,

Figure 2 is a perspective view showing the external configuration of the LED lighting apparatus of the present invention,

3 is a plan view showing the external configuration of the LED lighting apparatus of the present invention,

Figure 4 is a side view showing the external configuration of the LED lighting apparatus of the present invention,

5A is a cross-sectional view taken along line B-B 'of FIG. 3;

5B is an enlarged view illustrating an enlarged view of D of FIGS. 5A and 5D;

Figure 5c is an exploded cross-sectional view showing the internal configuration of the LED lighting apparatus of the present invention,

Figure 5d is a cross-sectional view showing another embodiment of the third LED light source module of the present invention,

5E is a cross-sectional view showing an enlarged view of E of FIG. 5D;

5F is an exploded cross-sectional view showing a configuration according to another embodiment of the third LED light source module of the present invention;

Figure 6 is an exploded perspective view showing the internal and external configuration of the LED lighting apparatus of the present invention,

Figure 7a is a plan view showing the internal structure of the LED lighting apparatus of the present invention,

FIG. 7B is an enlarged view illustrating an enlarged view of F of FIG. 7A,

8 is a plan view, side view, and rear view showing a configuration of a second case of the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ... LED Lighting 110 ... 1st Case

120 ... 1 LED light source module 130 ... 2 LED light source module

140 1st LED light control unit 141 reflector

142 ... Light guide plate 143 ... Diffuser plate

150 ... 2nd case 160 ... 3rd LED light source module

Claims (16)

An inner space forming part 112 is formed at a central portion, and a first case having an outer space forming part 114 formed at a circumference of the outer portion to form a second space portion 113 together with the inner space forming part 112. 110); A first LED light source module 120 formed along an outer side surface of the inner space forming unit 112; And A second LED light source module 130 formed along an inner side surface of the outer space forming unit 114; LED lighting device comprising a. The method of claim 1, Is disposed in the second space 113, LED lighting device further comprises a first LED light control unit 140 for controlling the light emitted from the first LED light source module 120 and the second LED light source module (130). 3. The method of claim 2, The first LED light control unit 140, LED lighting device including a light guide plate 142 for reflecting the light incident from the first LED light source module 120 and the second LED light source module 130 in the lighting direction. The method of claim 3, The first LED light control unit 140, A reflection plate 141 disposed under the light guide plate 142 and reflecting light incident to the bottom surface 115 of the second space part; or Is disposed on the light guide plate 142, LED lighting device further comprises a diffuser plate (143) to scatter the light incident from the light guide plate (142) to uniformly diffuse the light. The method of claim 1, LED lighting device further comprises a second case (150) coupled to the inner space forming part (112). The method of claim 5, A third space portion is further formed on one side of the second case 150, LED lighting device further comprises a third LED light source module 160 is installed along the circumference of the inner surface of the third space (153). The method of claim 6, The LED lighting apparatus further includes a second LED light control unit 170 inserted into the third space unit 153 and controlling the light incident from the third LED light source module 160. The method of claim 7, wherein The second LED light control unit 170, LED lighting device including a light guide plate (172) for reflecting the light incident from the third LED light source module 160 in the illumination direction. The method of claim 8, The second LED light control unit 170, A reflection plate 173 disposed below the light guide plate 172 and reflecting light incident from the third LED light source module 160 toward the bottom surface 154 of the third space part; or And a diffuser plate (171) disposed on the light guide plate (172) to scatter light incident from the light guide plate (172) to uniformly diffuse the light. The method of claim 5, A third space portion is further formed on one side of the second case 150, The LED lighting apparatus further comprises a third LED light source module (160) installed on the bottom surface (154) of the third space (153), for emitting light in a forward direction in the illumination direction. The method of claim 10, The LED lighting apparatus further includes a second LED light control unit 170 inserted into the third space unit 153 and controlling the light incident from the third LED light source module 160. The method of claim 11, The second LED light control unit 170, The bottom surface 154 of the third space portion 153, the reflection plate (173) for reflecting light incident from the third LED light source module 160 toward the bottom surface 154 of the third space portion; or Covering the third LED light source module 160, LED lighting device further comprises a diffusion plate 171 to scatter the light incident from the third LED light source module 160 to uniformly diffuse the light. The method of claim 6, The inner space forming part 112 forms a first space part 111 among them, The other side surface of the second case 150 is formed with a protrusion 151 corresponding to the inner surface of the inner space forming portion 112, the inner space forming portion 112 of the second case 150 of the LED projection device, characterized in that the protrusion 151 is inserted into the outer side of the forced press. 3. The method of claim 2, At one end of the outer space forming unit 114, a fixed frame 116 of a ring shape corresponding to the edge of the first case 110 is provided, The fixed frame 116, the LED lighting device, characterized in that for supporting the one end of the first LED light control unit 140 so that the first LED light control unit 140 is fixed in the second space (113). . The method according to any one of claims 5 to 13, The first case 110 and the second case 150 is an LED lighting device, characterized in that the polygonal or circular shape. 15. The method of claim 14, The first LED light control unit 140 is formed in a shape corresponding to the first case 110, the LED lighting device, characterized in that the central portion is formed with a through-hole through which the inner space forming unit 112 is inserted.

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