KR20110102746A - High power led radiator assembly - Google Patents

Abstract

The present invention relates to a heat dissipation plate for a high output LED, and more particularly to the inclined surface of the heat dissipation fin from the top to the bottom in a radial direction between the heat dissipation body and the heat dissipation housing to efficiently dissipate heat generated from the LED (LED) element. Formed to increase the heat dissipation area, while improving the heat dissipation efficiency by the vortex action by the flow of air and at the same time minimize the thickness of the heat sink to minimize the volume of the lighting device when installed in a lamp or street light LED heat sink .
The present invention comprises a heat dissipation body made of a cylindrical shape, a heat dissipation housing formed in a ring shape around the outer periphery of the heat dissipation body, and a heat dissipation fin radially coupled to the heat dissipation body and the heat dissipation housing, wherein the heat dissipation fin has a heat dissipation area. The light source is installed at the front of the heat dissipation body, the driving power is installed at the rear of the heat dissipation body, and the bracket and the angle control frame are combined at the rear of the heat dissipation body to provide the widest inclination angle. It is configured for easy installation in lighting devices.

Description

Heat sink for high output LED {HIGH POWER LED RADIATOR ASSEMBLY}

The present invention relates to a heat dissipation plate for a high output LED, and more particularly to the inclined surface of the heat dissipation fin from the top to the bottom in a radial direction between the heat dissipation body and the heat dissipation housing to efficiently dissipate heat generated from the LED (LED) element. Formed to increase the heat dissipation area, while improving the heat dissipation efficiency by the vortex action by the flow of air and at the same time minimize the thickness of the heat sink to minimize the volume of the lighting device when installed in a lamp or street light LED heat sink .

In general, an LED (Light Emitting Diode) refers to a light emitting diode which is a semiconductor device that emits light when a voltage is applied in the forward direction. The LED is small in size and has a long life compared to a conventional light source, and electrical energy is converted into light energy. Since direct conversion is consumed, power consumption is low, emits high brightness with high energy efficiency, and has high-speed response characteristics. Therefore, various lighting apparatuses using such LEDs as light sources have been developed.

LED lighting devices are widely used in electronics, electrical fields, and advertising fields because they can save power consumption with a long lifespan.In recent years, LED lighting devices have been widely used in indoor / outdoor lighting, street lamps, vehicle lamps, and advertising lighting. The utilization is increasing day by day.

In order to utilize the LED in the indoor / outdoor lighting and streetlight field as described above, a high power LED of high power is required. These high power LEDs generate heat and increase their own temperature. If the heat is not properly radiated, the temperature of the LED chip becomes too high, causing the chip itself or the packaging resin to deteriorate. This results in shorter chip life.

Therefore, lighting devices using LED as a light source have a success or failure depending on how the heat dissipation of the LED chip has been developed. In recent years, various heat dissipation technologies of LEDs have been developed.

Such heat dissipation techniques include air cooling using air flow and water cooling using cooling water, among which a conventional heat dissipation plate using air cooling simply radiates a plurality of heat dissipation fins vertically around the exterior of the body to radiate heat by the length of the heat dissipation fins. As the area is improved, the above structure alone has a limitation in increasing the heat dissipation area, and thus the heat dissipation efficiency does not improve more than a certain level.

Referring to Figure 3 of the conventional LED Publication No. 10-2009-97055 assembly type LED lighting device having a plurality of heat dissipation fins, LED lamp 14, LED finished product 12 in the lower portion of the transparent cover 16 in sequence ), A heat dissipation member (15) consisting of a heat dissipation plate (15a) and a heat dissipation block (15b) is combined, and a plurality of heat dissipation fins (17) are formed on the outer circumferential surface of the heat dissipation block (15b) to complete a single LED 12 Each heat dissipation member 15 is assigned to implement an individual heat dissipation system to improve heat dissipation. Furthermore, in the case of the heat dissipation fins 17 of the heat dissipation block 15b, the heat dissipation fins 17 are radially arranged along the circumferential surface when viewed in plan view. It is formed to secure the contact area with air as wide as possible, but in order for the heat radiation fins 17 to have a large contact area with the air, the thickness of the heat generating member 15 should be thickened, and thus the overall installation area of the lighting device. And wealth There is a problem that the cost of the product increases as the blood increases.

Meanwhile, the conventional heat dissipation member 15 improves heat dissipation efficiency by constructing the heat dissipation plate 15a and the heat dissipation block 15b in stages, but the air cannot flow in various directions while the air is wound around the heat dissipation fins 17. There is a problem in this fall, in particular, because the width of the air flow path formed between the heat radiation fin 17 and the heat radiation fin 17 is arbitrarily determined according to the thickness and the number of the heat radiation fin 17, because the air flow is not smooth, heat radiation efficiency There is a falling problem.

The heat sink installed in the conventional lighting equipment extends the projecting length of the heat sink fin in order to maximize the contact area with air, or radially radiates the heat sink fin irrespective of the width and the number of air flow paths formed between the heat sink fin and the heat sink fin. Therefore, there is a problem that the optimum heat dissipation efficiency can not be pursued, the overall coupling structure is complicated, and the handling and maintenance work is difficult.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is to radially radiate between the heat radiation body and the heat dissipation housing is formed to be inclined while inclined from the top to the bottom air while utilizing the heat radiation area as wide as possible It is to provide a heat dissipation plate for the high output LED which improves the heat dissipation efficiency while the heat conduction action with the air by the vortex action by the flow of the.

Another object of the present invention is to form an air flow path inclined at an angle of 25 ° with a heat radiation fin inside the heat dissipation fin consisting of 28 to immediately discharge the heat energy generated from the LED light source while the air flow and circulation is free By further improving the heat dissipation efficiency, the lifespan of the LED light source is extended and the life of the lighting device is extended to provide a heat dissipation plate for a high output LED that requires no maintenance.

Still another object of the present invention is to provide a heat sink for high power LED which can reduce the cost of the product by minimizing the installation area and volume of the lighting device when installing the lamp or street lamp by minimizing the thickness of the heat sink.

Another object of the present invention is easy to assemble and remove the driving power is installed on the rear of the heat dissipation body in which the light source is installed on the front, and the both ends of the angle adjustment frame is coupled to the bracket formed on both sides of the rear of the heat dissipation housing to radiate heat It provides a heat sink for high power LED that rotates the housing to 360 ° so that the lighting angle of the lighting device can be easily adjusted.

Still another object of the present invention is to provide a heat dissipation plate for a high output LED having a circular reflection plate formed on the front surface of the heat dissipation fin to perform an optimal light reflection action.

In order to achieve the object of the present invention as described above, the body is coupled to the LED (LED) on the front surface according to the present invention, the housing is formed on the outer rim of the body, the heat dissipation fin is formed radially therein for the high output LED In the heat sink,

A heat dissipation body formed with a light source accommodating part to which the light source is coupled to the front side is formed to protrude downward, and forms a ring heat dissipation housing spaced apart from the heat dissipation body around an upper periphery of the heat dissipation body, A plurality of heat dissipation fins are radially formed therebetween, wherein the heat dissipation fins have a first connection portion such that an outer end thereof is connected to an upper inner wall of the heat dissipation housing, and an inner end thereof is connected to an upper outer wall of the heat dissipation body. The inclined surface is inclined downward to form a second connecting portion to be connected to the lower inner wall of the housing and the lower outer wall of the heat dissipation body, characterized in that the air flow path is formed between the heat dissipation fins.

According to the present invention as described above, the heat radiation fins inclined at an angle of 25 degrees to the inside of the heat sink is radially formed, the air flow path is formed therein, the air is wound around the heat radiation fins while passing through the air flow path while The heat energy generated from the LED light source is immediately discharged to improve the heat dissipation efficiency and the invention has the effect of extending the life of the light source and the lighting device.

According to the present invention, 28 heat radiation fins are inclined at an angle of 25 ° to have an optimal heat dissipation efficiency while minimizing the thickness of the overall heat sink, thereby minimizing the installation area and volume of the lighting device when installed in a lamp or a street lamp. The invention is simple and effective to reduce the cost of the product.

The present invention is to improve the structure of the heat radiation fin to escape from the structure of the heat radiation fin that is installed vertically so as to utilize a wide heat radiation area in the prior art to have a wider heat dissipation area while active heat transfer effect with air Invention.

The present invention simplifies the overall structure of the heat sink to improve productivity, so that manufacturers have a competitive advantage, and the installation work of the LED light source and driving power coupled to the heat sink is also simple, and the heat dissipation housing at the rear of the heat sink is rotated 360 ° The bracket and angle control frame are installed so that the lighting angle of the lighting device can be easily adjusted, and the heat sink and driving power are exposed to the outside, and the air flow path is exposed to the outside, thereby improving heat dissipation efficiency. .

1 is a top perspective view of the heat sink of the present invention.
Figure 2 is a bottom perspective view of the heat sink of the present invention.
Figure 3 is a bottom view of the heat sink of the present invention.
Figure 4 is a perspective view of the bonded state of the heat sink of the present invention.
5 is a plan view showing the installation of the present invention.
Figure 6 is a side view showing the installation of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 to 6, the present invention is a heat dissipation body (10) made of a cylindrical shape, a heat dissipation housing (20) formed in a ring shape around the outer periphery of the heat dissipation body (10), and the heat dissipation body (10) ) And the heat dissipation fins 30 radially coupled to the inside of the heat dissipation housing 20, wherein the heat dissipation fins 30 are configured to have an inclination angle so as to utilize the heat dissipation area as wide as possible.

The heat dissipation body 10 is formed in a cylindrical shape extending downwards, the light source receiving portion 12 is formed to receive the LED light source 2 is coupled to the front, the light source receiving portion 12 is stepped in the groove Is formed so that the light source (2) can be stably fixed, the wire connection hole 14 is formed in the center of the rear of the heat dissipation body 10 of the light source (2) coupled to the front of the heat dissipation body (10) The electric wire is electrically connected to the driving power source 16 coupled to the rear surface of the heat dissipation body 10 through the wire connection hole 14 to supply electricity to the light source 2.

A ring-shaped heat dissipation housing 20 is formed to be spaced apart from the heat dissipation body 10 around the upper periphery of the heat dissipation body 10, and an end portion of the heat dissipation housing 20 having a ring shape is bent in a "-" shape. It is combined with the heat dissipation fin 30 to be described later.

Between the heat dissipation body 10 and the heat dissipation housing 20, a plurality of heat dissipation fins 30 are formed radially. The number of the heat dissipation fins 30 is 26 to 30, while the outer ends of the heat dissipation fins 30 are radiated. It is connected to the upper inner wall of the housing 20, the inner end is connected to the upper outer wall of the heat dissipation body 10 to form a first connecting portion 32, the first inner portion of the first connecting portion 32 The inclined surface 32a is formed to be inclined upwardly and is connected to the outer end in a horizontal direction, and the first connection portion 32 extends to have an inclined surface while inclined downward by 24 to 26 ° to the heat dissipation housing 20. It is connected to the lower inner wall and the lower outer wall of the heat dissipation body 10 to form a second connecting portion 34, the second connecting portion 34 is formed to be inclined by forming a second inclined surface (34a) at the outer end The end is connected in the horizontal direction.

On the other hand, the heat radiation fin 30 having an inclination angle is composed of 28 and configured to have an angle of 25 ° to have an optimal heat dissipation effect, and the air flow path between the heat radiation fin 30 inclined at 25 ° A plurality of (36) is formed so that the air is wound around the heat sink (1) to pass through the air flow path (36) through the air flow path (36) is immediately discharged heat energy generated from the LED light source (2) to improve the heat dissipation efficiency, thereby There is a characteristic that can extend the life of the lighting device.

4 and 5 are plan views in which the light source 2, the driving power source 16, and the angle adjusting frame 40 are coupled to the heat sink 1 of the present invention, and the heat dissipation body 10 and the heat dissipation housing 20 according to the present invention. ) And the heat dissipation fins 30 are the same as those mentioned above, so only the portions having differences are described.

The LED light source 2 is coupled to the light source accommodating part 12 formed on the front side of the heat dissipation body 10, and the driving power source 16 is coupled to the rear side of the heat dissipation body 10 to be electrically connected to each other. On both sides of the bottom surface of the heat radiation fin 30 formed radially on the body 10 and the heat dissipation housing 20, brackets 42 protrude downward, and both ends of the bracket 42 have end portions of the angle adjusting frame 40. Fixing with a bolt and extending to the side longer than the size of the heat dissipation housing 20, both ends are fixed to the street lamp post by welding or bolts, as shown in Figure 6 to rotate the heat dissipation housing 20 by 360 ° to illuminate the device The angle can be adjusted easily.

Here, the angle adjusting frame 40 may be used by connecting both ends of the angle adjusting frame 40 in a "c" shape according to the installed condition.

On the other hand, the driving power source 16 may be installed in two ways depending on the method used, the first method is fixed to the rear of the heat dissipation body 10 as mentioned above, and the second method is the heat dissipation body ( 10) and the driving power source 16 may be separately separated and installed, and then the wires connected to the light source 2 may be connected to the driving power source 16 through the wire connecting holes 14 to be electrically connected to each other. .

The front surface of the heat dissipation fin 30, that is, the first connection part 32, is coupled to the circular reflector 38, so that the light emitted from the LED light source 2 can be more brightly emitted by an optimal light reflection effect.

The heat sink for high power LED according to the present invention configured as described above is operated as follows.

In order to install the lighting device such as indoor / outdoor lighting, street lamp, tunnel lamp, LED light source (1) on the heat sink (1) in which the heat dissipation fin (30) is integrally formed radially between the heat dissipation body (10) and the heat dissipation housing (20). 2) is electrically connected to the driving power source 16, the reflection plate 30 is installed on the front of the heat dissipation fin 30, the bracket 42 formed on the rear of the heat dissipation body 10, the angle control frame 40 ) And then fix both ends of the angle adjustment frame 40 to the support pillar of the lighting device by welding or bolts.

5 and 6 are views of a state in which the heat sink 1 of the present invention is installed on the support pillar of the lighting apparatus. As shown in the figure, when electricity is applied to the LED light source 2, the LED light source 2 is brightly illuminated outdoors. In the case of thermal energy generated in the air), the outdoor air is wound around the radiating fins 30 and flows upward and downward to immediately radiate thermal energy by vortex action, and the radiating fins having an inclined surface at an angle of 25 ° ( The heat dissipation efficiency is further improved by increasing the cross-sectional area, and in particular, the heat generated from the light source 2 is dissipated by air passing through the air flow path 36 formed between the heat dissipation fins 30. Since the air passage 36 maintains an angle of 25 °, the air circulates rapidly while vortexing, thereby improving heat dissipation effect.

On the other hand, the heat radiation fins 30 which are inclined at an angle of 25 ° are wider than the heat radiation areas of the heat radiation fins vertically projected in order to form a wide heat radiation area in the related art, thereby dissipating heat energy generated from the light source 2 more quickly and efficiently. You can.

The heat dissipation plate for the high output LED according to the present invention described above is not limited to the above embodiments, and those skilled in the art to which the present invention pertains without departing from the gist of the present invention claimed in the following claims. The technical spirit is to the extent that anyone can make various changes.

1: heat sink 2: light source (LED)
10: heat dissipation body 12: light source receiving portion
14: wire connection hole 16: driving power source
20: heat dissipation housing 30: heat dissipation fin
32: first connecting portion 32a: first inclined surface
34: 2nd connection part 34a: 2nd inclined surface
36: air flow path 38: reflector
40: angle adjustment frame 42: bracket

Claims (6)

In the body is coupled to the LED (LED) light source on the front surface, the housing is formed on the outer edge of the body, the heat dissipation plate for a high power LED formed radially radiating fins therein,
The heat dissipation body 10 formed with a light source accommodating part 12 to accommodate the light source 2 is coupled to the front side to protrude downward, and spaced apart from the heat dissipation body 10 around the upper outer periphery of the heat dissipation body 10. A ring-shaped heat dissipation housing 20 is formed, and a plurality of heat dissipation fins 30 are formed radially between the heat dissipation body 10 and the heat dissipation housing 20, and the heat dissipation fins 30 have an outer end at the heat dissipation housing. It is connected to the upper inner wall of the (20), the inner end forms a first connecting portion 32 to be connected to each other and the upper outer wall of the heat dissipation body 10, the first connecting portion 32 so that the inclined surface is inclined downward The second connector 34 is formed to extend to be connected to the lower inner wall of the heat dissipation housing 20 and the lower outer wall of the heat dissipation body 10, and an air flow path 36 is formed between the heat dissipation fins 30. Heat sink for high power LED, characterized in that.
The heat dissipation plate of claim 1, wherein the number of the heat dissipation fins 30 is 26 to 30, and the heat dissipation fins 30 have an inclination angle of 24 to 26 degrees.
According to claim 1 or claim 2, wherein the heat dissipation body 10 is positioned lower than the upper surface of the heat dissipation housing 20 is formed to extend downward, the wire connection hole 14 in the center of the bottom surface of the heat dissipation body (10) Is formed to penetrate the wires to electrically connect the light source 2 and the driving power source 16 which are respectively installed on the front and rear surfaces of the heat dissipation body 10, and the first connection part 32 of the heat dissipation fin 30. The first inclined surface 32a is formed at a portion connected from the inner end to the outer end, and the second inclined surface 34a is formed at the portion connected to the inner end at the outer end of the second connection portion 34. Heat sink for high power LEDs.
In the body is coupled to the LED (LED) light source on the front surface, the housing is formed on the outer edge of the body, the heat dissipation plate for a high power LED formed radially radiating fins therein,
A heat dissipation body 10 formed with a light source accommodating part 12 into which the light source 2 is accommodated and coupled to the front side is formed to protrude downward, and a wire connection hole 14 is formed at the center of the bottom of the heat dissipation body 10. A wire connected to the light source 2 penetrates, and the driving power source 16 is electrically connected to the tube member 2 on the rear surface of the heat dissipation body 10, and the heat dissipation body (around the upper periphery of the heat dissipation body 10). 10 to form a heat dissipation housing 20 of a ring shape spaced apart from each other, and a plurality of heat dissipation fins 30 are formed radially between the heat dissipation body 10 and the heat dissipation housing 20, wherein the heat dissipation fins 30 are The outer end is connected to the upper inner wall of the heat dissipation housing 20, the inner end forms a first connection portion 32 having a first inclined surface 32a to be connected to the upper outer wall of the heat dissipation body 10, The first connector 32 extends downward so that the inclined surface is inclined downward so as to lower the heat dissipation housing 20. A second connection portion 34 having a second inclined surface 34a is formed to be connected to the inner wall and the lower outer wall of the heat dissipation body 10, and an air passage 36 is formed between the heat dissipation fins 30. Heat sink for high power LEDs.
The heat dissipation plate according to claim 4, wherein the reflector plate (38) is provided in the circumferential direction on the front surface of the first connection portion (32) of the heat dissipation fin (30).
5. The high output according to claim 4, further comprising protruding brackets 42 on both lower sides of the heat dissipation fins 30, and fixing both ends of the angle adjusting frame 40 to bolts on both sides of the brackets 42. LED heatsink.

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