CN101113812A

CN101113812A - Heat radiating device of LED light source

Info

Publication number: CN101113812A
Application number: CNA2007102013063A
Authority: CN
Inventors: 罗文正; 徐颖; 张立
Original assignee: Sichuan Sunfor Light Co Ltd
Current assignee: Sichuan Sunfor Light Co Ltd
Priority date: 2007-08-08
Filing date: 2007-08-08
Publication date: 2008-01-30

Abstract

The invention provides a heat dissipation device with excellent heat dissipation performance for an LED light source. The heat dissipation device of the LED light source comprises a heat dissipation body, and the heat dissipation body is provided with a thermoltube heat dump that is provided with at least a thermoltube. The beneficial effect of the invention is that: the invention adopts the combination type of thermoltube heat dissipation and metal material heat dissipation, so the heat conduction and heat dissipation performance is greatly improved; therefore, the invention is particularly suitable for the heat dissipation of the LED with large power.

Description

The heat abstractor of led light source

Technical field

The present invention relates to the heat radiation field, relate in particular to a kind of heat abstractor of led light source.

Background technology

Along with the development of semiconductor lighting technology, LED gradually from traditional small-power to single high-power and integrated high-power development, yet LED has only at a certain temperature could operate as normal.LED power is high more, caloric value is just big more, and the heating of single great power LED and integrated great power LED is very concentrated, the radiator that the present metal material with perfect heat-dissipatings such as aluminium, copper that generally adopts is made, its heat-sinking capability is obviously not enough, because the volume of aluminium or copper radiator reaches 0.006m ³The time, increasing volume and area again and can not obviously reduce thermal resistance, this heat energy that LED is sent can not conduct and discharge timely, has had a strong impact on the work of LED.

Summary of the invention

Technical problem to be solved by this invention provides a kind of heat abstractor of led light source, has good performance of heat dissipation.

The technical scheme that technical solution problem of the present invention is adopted is: the heat abstractor of led light source, comprise the heat radiation main body, and described heat radiation main body is provided with heat pipe receiver, and described heat pipe receiver is provided with at least one heat pipe.

The invention has the beneficial effects as follows: the mode that the present invention adopts heat pipe heat radiation to combine with the metal material heat radiation, heat conduction and heat dispersion improve greatly, are specially adapted to the heat radiation of high-power LED light source.

Description of drawings

Fig. 1 is the cutaway view of embodiments of the invention 1.

Fig. 2 is the cutaway view of embodiments of the invention 2.

Fig. 3 is the vertical view of embodiments of the invention 1 and embodiment 2.

Fig. 4 is the front view of embodiments of the invention 3.

Fig. 5 is the stereogram of embodiments of the invention 3.

The specific embodiment

The present invention is described in further detail below in conjunction with drawings and Examples.

Embodiment 1 as shown in figures 1 and 3, the heat abstractor of led light source of the present invention comprises heat radiation main body 1, and described heat radiation main body 1 is provided with heat pipe receiver 3, and described heat pipe receiver 3 is provided with at least one heat pipe 4.The effect of heat pipe receiver 3 is the heat energy that absorbs LED6, and the effect of heat pipe 4 is transmission and discharges the heat energy that heat pipe receiver 3 absorbs.Among the embodiment 1, be respectively arranged with 4 heat pipes 4 in the left and right sides of heat pipe receiver 3.

Heat pipe 4 adopts metallic material of aluminum or copper to become, because the capacity of heat transmission of copper is greater than aluminium, therefore, heat pipe 4 preferably is made of copper; Heat pipe receiver 3 also adopts metallic material of aluminum or copper to become, because the heat absorption capacity of copper is greater than aluminium, therefore, heat pipe receiver 3 preferably is made of copper.

Described heat pipe 4 is provided with at least one fin 2.Described fin 2 preferably is enclosed within on the described heat pipe 4, as shown in figures 1 and 3.Among the embodiment 1, there are 12 fin 2 to be enclosed within on described 4 heat pipes 4 respectively in the left and right sides of heat pipe receiver 3.Described fin 2 adopts aluminium, copper or other heat radiation good metal material to make, and the effect of fin 2 is to increase the area that discharges heat energy, and heat energy can be discharged more quickly.

Heat pipe receiver 3 efficient draw heats for convenience, heat pipe receiver 3 preferably is embedded on the heat radiation main body 1, and be arranged on LED6 directly over, with the dispel the heat upper and lower surface of main body 1 of LED6 apportion, as shown in Figure 1.

Heat pipe 4 of the present invention is cylinder, cone or other shape, and it is network structure that heat pipe 4 adopts metal material to make the surface airtight, middle, and working solutions such as water, methyl alcohol or ethanol are housed in the centre of heat pipe 4.The surperficial closed structure of heat pipe 4 and middle network structure can be one also can be split, after in the mesh structural porous structure of centre, working solution being housed, the heat that can in time heat pipe receiver 3 be absorbed after working solution is heated is delivered to the far-end of heat pipe 4, and is passed fast by a plurality of fin 2.

Heat energy for the ease of more rapidly and efficiently absorption LED6, the vertical direction of the centre of heat radiation main body 1 is provided with through hole 5, heat pipe receiver 3 and LED6 are arranged in the described through hole 5, preferably relatively near being arranged in the described through hole 5, embodiment 2 as shown in Figure 2, owing to there is not other medium in the middle of heat pipe receiver 3 and the LED6, the heat energy overwhelming majority that LED6 sends can be absorbed by heat pipe receiver 3 and be passed by heat pipe 4, has so just increased efficient of the present invention.

Fig. 4 and Fig. 5 are embodiments of the invention 3, adopt 8 discoid fin 2 to be enclosed within on 6 heat pipes 4, and 6 heat pipes 4 are evenly distributed in 8 discoid fin 2.

The present invention has the advantage of heat conduction and perfect heat-dissipating, is specially adapted to the heat radiation of the above great power LED of input power 5W.

Though the present invention illustrates and describes by the reference preferred embodiment.But those skilled in the art should understand, and in the scope of claims, can do various variations on form and the details.

Claims

1.LED the heat abstractor of light source comprises heat radiation main body (1), it is characterized in that: described heat radiation main body (1) is provided with heat pipe receiver (3), and described heat pipe receiver (3) is provided with at least one heat pipe (4).

2. the heat abstractor of led light source as claimed in claim 1, it is characterized in that: described heat pipe (4) is provided with at least one fin (2).

3. the heat abstractor of led light source as claimed in claim 2, it is characterized in that: described fin (2) is enclosed within on the described heat pipe (4).

4. the heat abstractor of led light source as claimed in claim 2, it is characterized in that: described fin (2) is adopted and is made of aluminum or copper.

5. the heat abstractor of led light source as claimed in claim 1 or 2, it is characterized in that: described heat pipe receiver (3) be embedded in described heat radiation main body (1) go up and be arranged on LED (6) directly over, the upper and lower surface of described heat pipe receiver (3) and LED (6) the described heat radiation main body of apportion (1).

6. the heat abstractor of led light source as claimed in claim 1 or 2, it is characterized in that: the vertical direction of described heat radiation main body (1) is provided with through hole (5), described heat pipe receiver (3) and LED (6) are arranged in the described through hole (5), described heat pipe receiver (3) is arranged on the top of through hole (5), and described LED (6) is arranged on the below of through hole (5).

7. the heat abstractor of led light source as claimed in claim 6, it is characterized in that: described heat pipe receiver (3) is relative to LED (6) being arranged in the described through hole (5).

8. the heat abstractor of led light source as claimed in claim 1 or 2, it is characterized in that: the centre of described heat pipe (4) is a network structure, and water, methyl alcohol or ethanol are housed.

9. the heat abstractor of led light source as claimed in claim 1 or 2 is characterized in that: described heat pipe (4) adopts copper or aluminium to make.

10. the heat abstractor of led light source as claimed in claim 1, it is characterized in that: described heat pipe receiver (3) is made of copper.