CN206247288U - A high-power LED heat sink - Google Patents

Abstract

The utility model discloses a high-power LED radiator, including the radiator shell, radiator shell bottom is equipped with the LED light source, the one end of LED light source is equipped with the heat dissipation chamber, the bottom in heat dissipation chamber is equipped with a plurality of fin, every the lateral wall of fin is equipped with a plurality of louvres, the upper wall bilateral symmetry in heat dissipation chamber is equipped with driving motor, two driving motor one end all is equipped with the pivot perpendicularly, two the outside of pivot all encircles and is equipped with a plurality of impellers, every the equal fixedly connected with aviation baffle of one end of impeller, the upper end middle part in heat dissipation chamber is equipped with the converter, the bottom of converter is equipped with the guide duct, the outer wall of converter encircles and is equipped with the heating panel, the outer wall one end that the converter was kept away from to the heating panel is equipped. The utility model discloses simple structure, easy operation, the heat transfer is effectual, long service life, and the device uses convenient ingenious, suitable extensive popularization.

Description

A high-power LED heat sink

technical field

The utility model relates to the technical field of radiators, in particular to a high-power LED radiator.

Background technique

As a new generation of green light source and an environmentally friendly solid-state lighting source, LED has become the focus of people's attention and is being widely used in the lighting industry. It has a series of advantages such as low power consumption, pure light and color, all solid state, light weight, small size, and environmental protection. LED is a photoelectric device, only 15% to 25% of the electric energy is converted into light energy during its working process, and the rest of the electric energy is almost all converted into heat energy, which increases the temperature of the LED. In the use of high-power LEDs, heat dissipation is an important issue. For example, if the photoelectric conversion efficiency of a 10W white LED is 20%, 8W of electrical energy will be converted into heat energy. If no heat dissipation measures are taken, the core temperature of the high-power LED will rise rapidly. When the temperature is allowed, the high temperature will lead to the reduction of photons emitted by the chip, the quality of the color temperature will decrease, the aging of the chip will be accelerated, and the life of the device will be shortened. Therefore, in the design of high-power LED lamps, the most important design work is the heat dissipation design. At present, the related technology of LED heat dissipation system is not very mature in China. The heat dissipation design of LED mostly uses aluminum heat dissipation fins to increase the heat dissipation area. The heat generated during the heating is exported in time, the heat dissipation effect is not ideal, and the heating element usually reaches a higher temperature.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a high-power LED radiator.

In order to achieve the above object, the utility model adopts the following technical solutions:

A high-power LED radiator, comprising a radiator shell, an LED light source is provided at the bottom of the radiator shell, a cooling chamber is provided at one end of the LED light source, and several cooling fins are provided at the bottom of the cooling chamber, and Each radiating fin is hemispherically arranged equidistantly from the center of the sphere, the side wall of each radiating fin is provided with a plurality of cooling holes, and the upper wall of the cooling cavity is symmetrically provided with drive motors, two One end of the driving motor is provided with a rotating shaft vertically, and the outer sides of the two rotating shafts are surrounded by a plurality of impellers, and each impeller is fixedly connected with the rotating shaft, and one end of each impeller is fixedly connected with a wind deflector , the middle part of the upper end of the cooling chamber is provided with a converter, the bottom of the converter is provided with an air guide tube, and the air guide tube runs through each heat sink and extends to the bottom of the cooling chamber, and the converter is provided with a closed The cavity structure is equipped with a heat exchange medium, the outer wall of the converter is surrounded by a heat dissipation plate, and the end of the heat dissipation plate away from the outer wall of the converter is provided with several suction fans. One side of the inner wall is surrounded by several exhaust fans, and each exhaust fan is vertically distributed on one side of the inner wall of the radiator shell.

Preferably, a heat dissipation fin is provided on the periphery of the heat dissipation cavity, and each heat dissipation fin is a hollow structure.

Preferably, several ventilation holes are provided on the inner wall of the radiator shell and the heat dissipation cavity.

Preferably, the heat exchange medium is a solid with high thermal conductivity, and its heat dissipation performance is higher than that of a liquid heat exchange medium.

Preferably, each of the wind deflectors forms an angle of 30°-60° with the impeller.

In the utility model, when the user uses the device, the radiator shell is installed on one end of the LED light source. When the LED light source continuously emits heat, the heat diffuses into the heat dissipation chamber through the heat sink, and under the guidance of the air duct, Part of the heat enters the converter, and because the converter is equipped with a heat exchange medium, most of the heat can be absorbed by it, thereby releasing lower heat, while the remaining heat is discharged to the heat sink through the cooling plate and the suction fan. In the radiator shell, and then under the action of the drive motor, rotating shaft and impeller, the remaining heat is discharged out of the radiator shell. In this way, the heat dissipation efficiency of the radiator is higher and the heat dissipation effect is better. The utility model has the advantages of simple structure, easy operation, good heat exchange effect and long service life. The device is convenient and ingenious to use, and is suitable for wide popularization.

Description of drawings

Fig. 1 is the structural representation of a kind of high-power LED radiator that the utility model proposes;

Fig. 2 is a structural schematic diagram of a heat sink of a high-power LED heat sink proposed by the utility model;

Fig. 3 is a structural schematic diagram of a wind deflector of a high-power LED heat sink proposed by the utility model.

In the figure: 1. radiator shell; 2. heat sink; 3. exhaust fan; 4. LED light source; 5. heat dissipation chamber; 6. suction fan; 7. heat dissipation plate; 8. heat exchange medium; 9. converter; 10 1. Air duct; 11. Driving motor; 12. Impeller; 13. Rotating shaft; 14. Cooling holes; 15. Air deflector.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-3, a high-power LED radiator includes a radiator shell 1, an LED light source 4 is provided at the bottom of the radiator shell 1, a cooling chamber 5 is provided at one end of the LED light source 4, and a cooling chamber 5 is provided at the bottom of the cooling chamber 5. Several cooling fins 2, and each cooling fin 2 is arranged equidistantly from the center of the sphere in a hemispherical shape, the side wall of each cooling fin 2 is provided with a plurality of cooling holes 14, and the upper wall of the cooling cavity 5 is symmetrical on both sides A driving motor 11 is provided, and two driving motors 11 are vertically provided with rotating shafts 13 at one end, and a plurality of impellers 12 are arranged around the outer sides of the two rotating shafts 13, and each impeller 12 is fixedly connected with the rotating shaft 13, and each impeller 12 One end of each is fixedly connected with a wind deflector 15, the middle part of the upper end of the heat dissipation chamber 5 is provided with a converter 9, and the bottom of the converter 9 is provided with an air guide pipe 10, and the air guide pipe 10 runs through each heat sink 2 and flows into the heat dissipation chamber. 5. The bottom extends, the converter 9 is provided with a closed cavity structure, and the cavity structure is provided with a heat exchange medium 8, and the outer wall of the converter 9 is surrounded by a cooling plate 7, and the cooling plate 7 is far away from the end of the outer wall of the converter 9 Several suction fans 6 are provided, and several exhaust fans 3 are arranged around the inner wall of the radiator shell 1 , and each exhaust fan 3 is vertically distributed on one side of the inner wall of the radiator shell 1 .

Specifically, 6-10 cooling fins 2 are arranged on the periphery of the cooling cavity 5, and each cooling fin 2 is a hollow structure, which increases the cooling area and makes the cooling effect better.

Specifically, the inner walls of the radiator shell 1 and the heat dissipation cavity 5 are provided with several ventilation holes, which can discharge the heat in the radiator shell 1 in time.

Specifically, the heat exchange medium 8 is a solid with high thermal conductivity, and its heat dissipation performance is higher than that of a liquid heat exchange medium. The heat exchange medium 8 can reduce the temperature of the hot gas, thereby gradually dissipating heat to the outside of the body shell 1 .

Specifically, each air deflector 15 forms an angle of 30°-60° with the impeller 12, which is more conducive to the exhaust of the impeller 12 and has higher heat dissipation efficiency.

In the utility model, when the user uses the device, the radiator shell 1 is installed on one end of the LED light source 4. When the LED light source 4 continuously emits heat, the heat diffuses into the heat dissipation chamber 5 through the heat sink 2, and the heat spreads in the air guide Under the guidance of the tube 10, part of the heat enters the converter 9, and because the heat exchange medium 8 is arranged in the converter 9, most of the heat can be absorbed by it, thereby releasing lower heat, while the remaining heat It is discharged into the radiator shell 1 through the heat dissipation plate 7 and the suction fan 6, and then under the action of the drive motor 11, the rotating shaft 13 and the impeller 12, the remaining heat is discharged outside the radiator shell 1, so that the heat dissipation of the radiator Higher efficiency and better heat dissipation.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. a kind of high-power LED radiator, including radiator shell (1), it is characterised in that：Radiator shell (1) bottom LED light source (4) is provided with, one end of the LED light source (4) is provided with heat dissipation cavity (5), and the bottom of the heat dissipation cavity (5) is provided with some Individual fin (2), and each fin (2) into hemispherical from the centre of sphere outwards equidistant arrangement, the side of each fin (2) Wall is provided with multiple louvres (14), and the upper wall of the heat dissipation cavity (5) is symmetrically arranged on two with motor (11), two drivings Motor (11) one end is vertically provided with rotating shaft (13), and two outsides of the rotating shaft (13) surround and are provided with multiple impellers (12), And each impeller (12) is fixedly connected with rotating shaft (13), one end of each impeller (12) has been fixedly connected with wind deflector (15), the upper center of the heat dissipation cavity (5) is provided with converter (9), and the bottom of the converter (9) is provided with guide duct (10), And guide duct (10) extends through each fin (2) and to heat dissipation cavity (5) bottom, and closing is provided with the converter (9) Heat transferring medium (8) is provided with cavity body structure, and cavity body structure, the outer wall of the converter (9) surround and is provided with heat sink (7), institute State heat sink (7) and be provided with blower fan (6), the side ring of inwall one of the radiator shell (1) away from outer wall one end of converter (9) It is arranged with ventilating fan (3).

2. a kind of high-power LED radiator according to claim 1, it is characterised in that：The periphery of the heat dissipation cavity (5) sets There is 6-10 fin (2), and each fin (2) is hollow structure.

3. a kind of high-power LED radiator according to claim 1, it is characterised in that：The radiator shell (1) and dissipate The inwall of hot chamber (5) is equipped with several air vents.

4. a kind of high-power LED radiator according to claim 1, it is characterised in that：The heat transferring medium (8) is led for height Hot solids, and heat dispersion is higher than liquid heat transfer medium.

5. a kind of high-power LED radiator according to claim 1, it is characterised in that：Each described wind deflector (15) is With impeller (12) into 30 ° of -60 ° of angles.

6. a kind of high-power LED radiator according to claim 1, it is characterised in that：Ventilating fan (3) vertical distribution exists The inwall side of radiator shell (1).