KR200452813Y1 - Led lighting fixtures - Google Patents

Abstract

The present invention includes an LED module consisting of at least one LED element and a printed circuit board on which the LED element is mounted; An inner heat dissipation member having a plurality of inner heat dissipation plates on the inner body and fastened to the LED module; An outer heat dissipation member having a plurality of outer heat dissipation plates on the outer body, the outer heat dissipation member being coupled to the inner heat dissipation member as a heat dissipation member connector; And an illumination cover having an opening through which the heat dissipation member connector penetrates, and including an LED module and an internal heat dissipation member.
In addition, the LED lighting device according to the present invention is a part of the heat generated from the LED module configured inside the light cover is discharged inside the light cover as an internal heat dissipation member, the remaining heat through the heat dissipation member connected to the internal heat dissipation member It is effective to solve the problem that the life of the LED element is abruptly shortened due to the heat accumulated by remaining in the interior of the lighting cover by conducting to the external heat radiating member configured to the outside of the lighting cover to be discharged to the outside of the lighting cover.

Description

LED lighting apparatus

The present invention relates to an LED lighting device including an LED module, an internal heat dissipation member, a heat dissipation member connector, an external heat dissipation member, and a light cover, and a part of the heat generated from the LED module configured inside the light cover is illuminated as an internal heat dissipation member. The present invention relates to an LED lighting device that emits inside the cover and the remaining heat is conducted to the outside heat dissipating member configured outside the light cover through the heat dissipating member connected to the inner heat dissipating member so as to be discharged to the outside of the light cover.

In general, lighting equipment converts electrical energy into light energy to identify objects even in dark places, and recently, lighting fixtures have been widely used to create interior decoration or cozy atmosphere. Such lighting fixtures are manufactured in various forms, and in the past, lighting fixtures such as incandescent lamps and fluorescent lamps are mainly used, but recently, next-generation light source LED lighting fixtures to replace incandescent lamps and fluorescent lamps are rapidly spreading to homes and offices. .

 Among the luminaires described above, luminaires such as incandescent lamps, fluorescent lamps, etc. are widely used by consumers because they are easy to manufacture and use, but they are widely used by consumers. In order to solve this problem, lighting lamps or lamps implemented as LEDs have been developed and sold. LED (Light Emitting Diode, LED) is a kind of semiconductor semiconductor device that emits light when a voltage is applied, there are red, green, blue, white LED and the like. In general, LED is a kind of pn junction diode, a semiconductor device using the electroluminescence effect that is a phenomenon that short wavelength light is emitted when the voltage is applied in the forward direction, that is, the n-layer electrons and the p-layer hole is coupled when the voltage is applied in the forward direction At the same time, they emit as much energy as the difference in height between the conduction band and the consumer electronics. This energy is mainly emitted in the form of heat or light, and it is called LED.

Such lighting fixtures using LEDs are in the spotlight as next generation luminaires with about 10 to 15% lower power consumption, more than 100,000 hours of semi-permanent lifespan, environmentally friendly and high energy saving effect compared to conventional incandescent or fluorescent lamps.

In addition, looking at the prior art with respect to the lighting fixture using the LED having the above principle and characteristics are as follows.

Korean Patent No. 10-0822032 relates to a natural cooling type LED lighting, which is a natural convection through the natural convection pipe provided vertically across the center to allow the natural heat to be discharged smoothly in the natural convection method Cooling type LED lamp, the lamp has a power contact portion attached to the inside, a through hole is formed in the power contact portion, a vent hole is formed around the upper portion corresponding to the through hole, the bottom of the plug body and the upper end, The screw is coupled to the inner side of the plug body so as to contact the power contact portion, and has an exhaust hole around the upper portion corresponding to the through hole, the lower side of the light socket and the upper center to be fitted to the outer peripheral surface of the lower end of the light socket Hemispherical lampshade having a coupling hole in the light reflecting light from the inner side, and the upper end is coupled to the lower end of the light socket The LED lamp is projected to the outside of the lampshade, the LED lamp including a natural convection tube and the LED lamp unit mounted on the outer circumferential surface of the natural convection tube is a natural convection by heating the air inside the heat generated from the outside, the general LED Unlike luminaires, a natural convection pipe is embedded inside the lighting cover to present the effect of dissipating heat generated from the front and rear of the LED module to the outside of the lighting cover as a convection phenomenon. Since the effect of dissipating heat to the outside is not excellent, there is a problem of shortening the lifespan due to heat generated from the LED, and research and development thereof is required.

The present invention is a technique devised to improve the problems according to the technology related to the conventional LED lighting fixtures,

Conventional LED lighting fixtures not only heat generated from the front of the LED element, but also heat generated from the rear of the LED element emitted through the heat dissipation member remaining inside the light cover, the life of the LED element is dramatically shortened due to the accumulated heat The purpose of the present invention is to provide a solution to the problem by forming a natural convection tube that is ventilated with the outside of the lighting cover and having a problem that the effect of the configuration of the natural convection tube that emits heat to the outside of the lighting cover due to convection occurs. It is done.

The present invention is to realize the desired purpose as described above,

An LED module comprising at least one LED element and a printed circuit board on which the LED element is mounted; An inner heat dissipation member having a plurality of inner heat dissipation plates on the inner body and fastened to the LED module; An outer heat dissipation member having a plurality of outer heat dissipation plates on the outer body, the outer heat dissipation member being coupled to the inner heat dissipation member as a heat dissipation member connector; Presenting an LED lighting device comprising a; a light cover having an opening for penetrating the heat dissipation member connector, the light cover to embed the LED module and the internal heat dissipation member.

The LED lighting device according to the present invention is by the above means,

Part of the heat generated from the LED module configured inside the light cover is released inside the light cover as an internal heat dissipating member, and the remaining heat is an external heat dissipating member configured outside the light cover through the heat dissipating member connecting to the internal heat dissipating member. By radiating to the outside of the light cover to be discharged to remain inside the light cover has the effect of solving the problem that the life of the LED element is rapidly shortened due to the accumulated heat.

1 is a partial cross-sectional perspective view showing an LED lighting device according to a preferred embodiment of the present invention.
Figure 2 is an exploded perspective view showing the LED lighting fixture according to a preferred embodiment of the present invention.
3 is an exploded-separated perspective view showing the heat dissipation member 20 of the LED lighting device according to the preferred embodiment of the present invention.
Figure 4 (a) is a perspective view (if a heat dissipation space is configured) showing the external heat dissipation member 30 of the LED lighting apparatus according to a preferred embodiment of the present invention.
Figure 4 (b) is a perspective view (if a heat dissipation space is configured) showing the internal heat dissipation member 20 of the LED lighting apparatus according to a preferred embodiment of the present invention.
5 is a cross-sectional perspective view showing the LED lighting fixture according to a preferred embodiment of the present invention.
Figure 6 is a cross-sectional perspective view showing the LED lighting fixture according to a preferred embodiment of the present invention (when the inner body hole and the outer body hole is configured).
Figure 7 is a cross-sectional perspective view showing the LED lighting fixture according to a preferred embodiment of the present invention.
8 is a cross-sectional perspective view showing the LED lighting fixture according to a preferred embodiment of the present invention.
Figure 9 (a) to (b) is a plan view showing another form of the inner / outer heat sink of the LED lighting apparatus according to a preferred embodiment of the present invention.

The present invention relates to an LED lighting device using the LED element 11 as a light source, the LED module 10 composed of one or more LED element 11 and the printed circuit board 12 on which the LED element 11 is mounted. )and; A plurality of internal heat dissipation plates 22 provided on the internal body 21 and an internal heat dissipation member 20 fastened to the LED module 10; An outer heat dissipation member 30 having a plurality of outer heat dissipation plates 32 on the outer body 31, the outer heat dissipation member 30 being bonded to the inner heat dissipation member 20 as a heat dissipation member connector 40; And an illumination cover (50) having an opening (51) through which the heat dissipation member connector (40) passes, and which embeds the LED module (10) and the internal heat dissipation member (20).

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings 1 to 9 as follows.

First, the LED lighting apparatus according to the prior art heats the heat generated from the LED module composed of the LED element and the printed circuit board (PCB) inside the lighting cover and the rear surface of the LED element (the same concept as the rear of the LED module). The heat dissipation member including the heat dissipation plate for discharging is all inherent, so that not only heat generated from the front surface of the LED element but also heat generated from the rear side of the LED element is discharged through the heat dissipation member and remains inside the LED cover. The heat generated from the mechanism is continuously accumulated inside the lighting cover, and due to the heat accumulated as described above, there is a problem that the life of the LED element is abruptly shortened. In addition, the LED lighting device (not shown) configured with a natural convection tube in order to overcome the problems of the conventional LED lighting device as described above, the natural light that can be ventilated with the outside of the light cover inside the light cover is mounted with the LED module consisting of the LED element and PCB The convection pipe is configured to present the effect of dissipating heat generated from the front and rear of the LED module to the outside of the lighting cover as a convection phenomenon, but the heat generated from the LED module inside the lighting cover may cause convection inside the lighting cover. When raised to such an extent that the LED element is already in a state of considerable thermal damage, there is a concern that a practical effect on the composition of the natural convection tube may not be excellent.

On the contrary, the present invention macroscopically proposes an LED lighting device including the LED module 10, the inner heat dissipation member 20, the heat dissipation member connector 40, the outer heat dissipation member 30 and the light cover 50, By effectively dissipating heat generated from the LED module 10 configured in the lighting cover 50 to the outside of the lighting cover 50, the effect of solving the problem of shortening the life of the LED element 11 due to heat is realized.

In detail, the LED module 10 includes one or more LED elements 11 and a printed circuit board 12 on which the LED elements 11 are mounted and supplying current to the LED elements 11. 11 may be any semiconductor device capable of generating monochromatic light such as red, green, or blue, which is generally used, and the printed circuit board 12 may also include one or more LED elements 11 having a predetermined value. As long as the configuration can receive the current, any one of various materials such as FPCB and metal PCB may be used. In addition, the LED module 10 according to the present invention is a lens 13 having a predetermined refractive index on the outside of the LED element 11 in order to collect or diffuse the light emitted from the LED element 11 as shown in FIG. It is also possible to include a configuration that further includes.

In addition, the internal heat dissipation member 20 according to the present invention is provided with a plurality of internal heat dissipation plates 22 on the inner body 21, and one side of the internal heat dissipation member 20 is the rear surface of the LED module 10 (LED on the upper surface). The heat is generated by the LED module 10 (heat generated by the LED element 11 and the printed circuit board 12) by binding to the printed circuit board 12 on which the element 11 is mounted. Heat generated by the resistance of the electric current supplied to the light emitting part is discharged to the inside of the lighting cover 50, and the heat is conducted to the inner heat-dissipating member 20 but is not released to the inside of the lighting cover 50 The heat dissipation member of the connector 40 and the external heat dissipation member 30 is conducted to exert the effect of emitting to the outside of the light cover 50. That is, the inner body 21 of the inner heat-dissipating member 20 according to the present invention is made of a material such as aluminum, aluminum alloy, graphite, silicon, ceramic having excellent thermal conductivity and is bound to the back of the printed circuit board 12 It is preferable that the heat generated from the LED module 10 is directly conducted. In this case, the plurality of inner heat dissipation plates 22 provided on the inner body 21 are respectively bound to the outer circumferential surface of the inner body 21 as shown in FIG. 2. The construction widens the contact area of the inner body 21 to the atmosphere so that the heat transmitted from the LED module 10 to the inner body 21 can be more effectively released. In addition, the internal heat dissipation plate 22 according to the present invention may be used in any form as long as the heat dissipation to the internal heat dissipation plate 22 can be easily discharged. As described above, the inner heat radiation plate 22 'of the "y" shape has a plurality of inner heat radiation plates 22' through the lower portion of the "y" shape that is bound to the inner body 21. Exerts the effect of binding to the body 21, it is possible to more easily release the heat conducted from the inner body 21 by expanding the contact area with the atmosphere through the upper portion (upper groove) of the "y" shape It is effective.

In addition to the above, the heat dissipation member 20 may further include an inner heat dissipation member ring 26 having a diameter of a predetermined size in a plurality of internal heat dissipation plates 22 at a predetermined position, as shown in FIG. 3, and the inner heat dissipation member ring 26. The effect of preventing the shape change of the inner heat-radiating member 20 by the external impact.

In addition, the internal heat dissipation member 20 according to the present invention may further include a heat dissipation space 23a at an internal predetermined position as shown in (b) of FIG. 4, wherein the heat dissipation space 23a is fastened to the inner body 21. As a space formed by uniformly cutting a portion of the plurality of internal heat dissipating plates 22, the internal body 21 is closely bonded to the plurality of internal heat dissipating plates 22, so that the space between the adjacent inner heat dissipating plates 22 is narrow. The contact area between the heat sink 22 and the atmosphere (heat dissipation space 23a) is widened to achieve an effect of improving heat dissipation.

In addition to the above, as the heat dissipation member 40, the external heat dissipation member 30 according to the present invention, which is bound to the internal heat dissipation member 20, has an external body 31 having a similar configuration and effect to the internal heat dissipation member 20. And a plurality of external heat dissipation plates 32 provided on the outer circumferential surface of the outer body 31. That is, the heat dissipation member 30 may penetrate the heat dissipation member 40 to the lighting cover 50 having the opening 51 having a predetermined size as shown in FIG. 7, and one side of the heat dissipation member connector 40. It is configured on the outside of the light cover 50, which includes the internal heat-dissipating member 20, the LED module 10 is bound to the effect of dissipating heat generated from the LED module 10 to the outside of the light cover 50 Exert. Specifically, in the external heat dissipation member 30 according to the present invention, a plurality of external heat dissipation plates 32 are provided on the outer body 31, and one side of the external heat dissipation member 30 is bound to the heat dissipation member connector 40. In this configuration, the heat conducted from the inner heat dissipation member 20 and the heat not discharged therein are conducted to the heat dissipation member connector 40, thereby exerting the outside of the lighting cover 50. That is, the outer body 31 of the outer heat radiation member 30 according to the present invention is preferably made of the same material as the inner body 21 of the inner heat radiation member 20, in this case provided on the outer body 31 The plurality of external heat dissipation plates 32 are configured to be respectively bound to the outer circumferential surface of the outer body 31 to widen the contact area of the outer body 31 to the atmosphere, thereby effectively dissipating heat transferred to the outer heat radiating member 30. To be releasable. In addition, the external heat dissipation plate 32 according to the present invention may be configured in any form by the same principle as the configuration of the internal heat dissipation plate 22, but to easily discharge the heat conducted to the external heat dissipation plate 32 '. For this reason, it is preferable that the inner heat dissipation plate 22 'be configured in the form of a "y" shape. The outer heat radiation plate 32 'of the "y" shape as described above has a plurality of outer heat radiation plates 32' bound to the outer body 31 through the lower portion of the "y" shape that is fastened to the outer body 31. 9b, the contact area with the air is widened through the upper portion (upper groove) of the “y” shape as shown in FIG. Exerts an effect that can be released to the outside.

In addition, the external heat dissipation member 30 according to the present invention has a similar configuration and effect to the heat dissipation space 23a of the internal heat dissipation member 20, and the heat dissipation space 23b at a predetermined position inside the external heat dissipation member 30. The heat dissipation space 23b is a space formed by uniformly cutting a portion of the plurality of external heat dissipation plates 32 bonded to the outer body 31 as shown in FIG. When the plurality of internal heat dissipation plates 22 are tightly bonded to the body 31 and the gap between the mutually adjacent external heat dissipation plates 32 is narrow, the contact area between the external heat dissipation plate 32 and the atmosphere (heat dissipation space 23b) is increased to improve heat dissipation. It has an effect that can be done.

In addition, the lighting cover 50 having an opening 51 through which the heat dissipating member connector 40 penetrates when the internal heat dissipating member 20 and the external heat dissipating member 30 are fastened as the heat dissipating member connector 40. When the diameter of the light cover opening 51 and the diameter of the heat dissipation member connector 40 are the same, the heat conducted from the inner heat dissipation member 20 is conducted to the heat dissipation member connector 40 and the outer heat dissipation member 30 to illuminate the light. The cover 50 may be released to the outside, but according to the judgment of those skilled in the art, as shown in FIG. 8, the diameter of the light cover opening 51 is larger than the diameter of the heat dissipation member connector 40, and thus, the opening 51. By the illumination cover vent hole 52 is formed between the inner circumferential edge of the heat dissipation member and the outer edge of the heat dissipation member 40, the inner heat dissipation member 20 is discharged into the light cover 50 inside the light cover 50 The heat trapped inside can realize the effect that can be discharged to the outside of the light cover 50 through the vent 52 The.

In addition, the method of fastening the inner heat dissipation member 20 and the outer heat dissipation member 30, which are bound as the heat dissipation member connector 40 to the lighting cover 50, may also use fastening means such as bolts, screws, pins, and the like. However, in the present invention, fastening is made to be equal to the thickness of the lighting cover 50 by using a gap formed between the inner heat dissipating member 20 and the outer heat dissipating member 30 which are bound by the heat dissipating member connector 40. The configuration that is fixed only by the fastening force of the generated internal heat dissipation member 20 and the external heat dissipation member 30 lowers the manufacturing cost of the LED lighting fixture, and each configuration (internal heat dissipation member 20, external heat dissipation member 30 and Fastening between the lighting cover 50) can be easily obtained.

In addition, the present invention effectively radiates the heat generated from the LED module 10 inside the lighting cover 50 to the outside of the lighting cover 50 to solve the problem that the life of the LED element 11 is shortened due to the heat inside It is possible to configure the inner body heat dissipation space 24 of the hollow form inside the inner body 21 of the member 20. That is, the inner body 21 of the hollow shape is not formed to conduct the heat conducted by the LED module 10 to the atmosphere by conducting heat only by the conductivity of the inner body 21 itself, or radiating member connector 40 In the case of using a general LED module does not cause a heat dissipation problem, but when using an LED module using a large capacity LED element 11 in the inner body (21) of the hollow body heat radiation space ( 24) by using not only the conductivity of the inner body 21 itself, but also the conductivity of the air filled in the inner body heat dissipation space 24 and the convection of the air can release the heat conducted to the inner body 21 more quickly. It is more desirable to induce a certain effect.

In addition, the inner body 21 according to the present invention further includes an inner body heat dissipation space 24 and an inner body vent hole 25 having a predetermined size at a predetermined internal position, and the inner body vent hole 25. ) Can be any shape as long as it can be vented to the outside of the inner body heat dissipation space 24 and the inner body 21, preferably as shown in Figure 6 by cutting a predetermined position inside the inner body 21 in an arc shape as much as possible It is preferable to be comprised large. The inner body through-hole 25 of such a configuration has an effect of releasing a portion of the heat conducted to the air inside the inner body heat dissipation space 24 to the inner heat dissipation plate 22 directly to the outside atmosphere, so that the inner heat dissipation plate ( 22) It is effective to reduce the thermal load conducted to.

In addition, the outer heat dissipation member 30 according to the present invention, which is coupled with the inner heat dissipation member 20 as the heat dissipation member connector 40, has an external body heat dissipation space having a similar configuration and effect to the inner heat dissipation member 20. 34 and the outer body through-hole 35 may be further included in the outer body (31). That is, in the detailed description of the outer body heat dissipation space 34 and the outer body vent hole 35 formed in the outer body 31, the inner body heat dissipation space 24 and the inner body vent hole of the inner heat dissipation member 20. The same technical concept as that of (25) will be cited as a description of the inner body heat dissipation space 24 and the inner body through-hole (25). Specifically, the outer body heat dissipation space 34 according to the present invention is the outer body through the outer body heat dissipation space 34 the heat conducted by the outer body 31 as the heat dissipation member connector 40 in the inner body 21. (31) By using the conductivity of the air filled in the outer body heat dissipation space 34 and the convection of the air as well as its own conductivity, and exhibits the effect that can quickly release the heat conducted to the outer body 31, the outside The body vent hole 35 has an effect of releasing a part of the heat conducted to the internal air of the outer body heat dissipation space 34 to the external heat sink 32 without directly transferring it to the external heat sink 32 to conduct it to the external heat sink 32. It can reduce the thermal load.

In addition to the above, the heat dissipation member connector 40 according to the present invention firmly fastens the internal heat dissipation member 20 and the external heat dissipation member 30, and conducts heat conducted by the internal heat dissipation member 20 to the external heat dissipation member 30. Any type can be used as long as it can be appropriately conductive, but it is more preferable to further include a hollow heat dissipation path 44 inside the heat dissipation member connector 40. The heat dissipation path 44 of this configuration can mutually vent the air filled in the inner body heat dissipation space 24 configured in the inner heat dissipation member 20 and the outer body heat dissipation space 34 constituted in the outer heat dissipation member 30. It is possible to release the heat of the inner body 21 of the inner heat-dissipating member 20 more quickly, and when the air inside the lighting cover 50 is excessively heated, the air inside the lighting cover 50 is the inner body vent The reverse circulation (24) is introduced into the inner body heat dissipation space 24, and the excessively heated air introduced into the inner body heat dissipation space 24 is convection to the outer body heat dissipation space 34 through the heat dissipation path 44 It exerts an effect to be discharged to the outer body vent 35, outside the light cover (50).

Also described above with reference to a preferred embodiment of the present invention, is not limited to the above embodiments, those of ordinary skill in the art to which the present invention belongs through the above embodiments do not depart from the gist of the present invention It can be carried out with various changes in scope.

10: LED module 11: LED element
12: printed circuit board (PCB) 13: lens
20: internal heat radiation member 21: internal body
22: heat sink 23a, 23b: heat dissipation space
24: internal body heat dissipation space 25: internal body vents
26: internal heat radiation member ring 30: external heat radiation member
31: outer body 32: external heat sink
34: outer body heat dissipation space 35: outer body vents
40: heat dissipation member connector 44: heat dissipation furnace
50: light cover 51: opening
52: ventilator

Claims (8)

An LED module (10) comprising at least one LED element (11) and a printed circuit board (12) on which the LED element (11) is mounted;
The inner body 21 has a plurality of inner heat dissipation plate 22 and the inner body heat dissipation space 24 and the inner body vent hole 25 that can be ventilated, and the inner heat dissipation member 20 which is fastened to the LED module 10. )Wow;
The outer body 31 is provided with a plurality of outer heat dissipation plate 32 and the outer body heat dissipation space 34 and the outer body vent hole 35 that can be ventilated, and the inner heat dissipation member 20 as a heat dissipation member connector 40. External heat radiation member 30 and bound;
LED lighting fixture comprising a; and having an opening 51 for penetrating the heat dissipation member connector 40, the lighting cover 50 to embed the LED module 10 and the internal heat dissipation member 20; .
The method of claim 1,
LED lighting fixture, characterized in that any one or more of the plurality of inner heat dissipation plate 22 or the outer heat dissipation plate 32 is configured in the form of "y".
The method of claim 1,
The opening 51 of the illumination cover 50,
LED light, characterized in that the diameter is larger than the diameter of the heat dissipation member connector 40, the illumination cover vent hole 52 is formed between the inner periphery of the opening 51 and the outer edge of the heat dissipation member connector 40. Instrument.
delete The method of claim 1,
The lighting cover 50,
LED lighting apparatus, characterized in that the fixing by only the fastening force of the inner heat-dissipating member 20 and the outer heat-dissipating member (30) which is bound by the heat dissipating member (40).
delete delete The method of claim 1,
The heat dissipation member connector 40 further includes a heat dissipation path 44 therein;
The heat dissipation path 44 is an LED luminaire, characterized in that the inner body heat dissipation space 24 and the outer body heat dissipation space 34 through each other.

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