CN202195371U

CN202195371U - Driven-radiating type high-power light-emitting diode (LED) lamp

Info

Publication number: CN202195371U
Application number: CN201120320565XU
Authority: CN
Inventors: 李刚; 高亚眉
Original assignee: Sichuan Sunfor Light Co Ltd
Current assignee: Sichuan Sunfor Light Co Ltd
Priority date: 2011-08-30
Filing date: 2011-08-30
Publication date: 2012-04-18
Anticipated expiration: 2021-08-30

Abstract

The utility model provides a driven-radiating type high-power light-emitting diode (LED) lamp. After adopting the LED lamp, radiating of an LED is fast and the service life of the LED and the lamp is prolonged. The driven-radiating type high-power LED lamp comprises the LED, an electric appliance system and radiating fins. The heat exchanging area of the radiating fins and the air is large, the radiating is accelerated, temperature rising of the LED is restrained, and accordingly the service life of the LED and the whole lamp is prolonged. After adopting a heat conducting tube, the radiating efficiency is further improved. A temperature sensor at the bottom of the LED can automatically cut off the power source when the temperature is overlarge so as to prevent the LED from being damaged due to high temperature.

Description

Passive radiating high-power LED light fixture

Technical field

The utility model relates to a kind of high-power LED lamp, particularly relates to a kind of passive radiating high-power LED light fixture.

Background technology

Along with the technological progress of LED, light efficiency and cost have all reached the more rational stage at present.Also adopt LED as light source in the lighting more and more, but Along with people's improves to the requirement of intensity of illumination, the power of LED is done bigger and bigger, and the heat radiation that thereupon produces is also increasingly high, and high temperature has had a strong impact on the service life of LED.Though present high-power LED lamp has also been taked cooling measure, mainly be to lean on the heat exchange of fin and air to dispel the heat, receive the restriction of character of LED own and production technology between LED and the fin and conduct heat very slow; And efficient is not high, so this radiating mode radiating effect is relatively poor, radiating rate is slow; The heat that accumulates on the LED assembly is difficult to dissipate fast; The LED temperature constantly raises, and has influenced the service life of LED, even just it is burnt out at short notice.This has just limited the power of LED, brings limitation for the use of great power LED.

The utility model content

The utility model technical problem to be solved provides a kind of passive radiating high-power LED light fixture, adopt the passive radiating high-power LED light fixture of this kind after, the heat that LED produces can pass on the fin very soon, the radiating rate of LED is fast.

The technical scheme that the utility model technical solution problem is adopted is: this passive radiating high-power LED light fixture comprises terminal pad and is arranged on the pedestal on the terminal pad; On said pedestal, LED is installed; On said terminal pad, fin is installed; Also comprise heat pipe, said heat pipe one end embeds pedestal, and the other end inserts fin.Heat pipe adopts high thermal conductivity materials, and the surface scribbles the better coating of heat conductivility, and the heat that LED is produced fast, be transmitted on the fin equably.

As a kind of improvement, said fin and terminal pad are as a whole, make an integral body after, reduced of the influence of joining place slit to conducting heat, the heat of LED can reach fin quickly.

For conducting heat better, said pedestal is embedded in the fin, has increased the contact area of pedestal and fin, and it is more even sooner to conduct heat.

Improve as another kind, also be provided with lens in said LED front, the light that LED sends expands bundle through lens, and irradiated area is bigger.

Outside said lens, also be provided with diffuser, said diffuser surface is done frosted and is handled, and makes light softer.

Also comprise reflection shield, said reflection shield is fixed on the terminal pad, and reflection shield makes radiation direction more concentrated.

The beneficial effect of the utility model is: after adopting the passive radiating high-power LED light fixture of this kind; The heat that LED produced is transmitted on the fin more quickly, and radiating efficiency is higher, and LED heats up slow; Temperature can be not too high yet, thereby prolonged the service life of LED and whole light fixture.After installing heat pipe additional between pedestal and the fin, heat is transmitted on the fin more evenly, more quickly, has further improved radiating efficiency.

Description of drawings

Fig. 1 is the passive radiating high-power LED fitting structure of a utility model sketch map.

The specific embodiment

As shown in Figure 1; This passive radiating high-power LED light fixture comprises terminal pad 8 and is arranged on the pedestal 6 on the terminal pad; LED 1 is installed on said pedestal 6, fin 2 is installed on said terminal pad 8, also comprise heat pipe 7; Said heat pipe 7 one ends embed pedestal 6, and the other end inserts fin 2.Heat pipe 7 adopts high thermal conductivity materials; And the surface scribbles the better coating of heat conductivility; The heat that LED 1 is produced is transmitted on the fin 2 fast, equably; The entire heat dissipation area of fin 2 is fully utilized, and has accelerated the rate of heat exchange with air, thereby is LED 1 heat radiation better.

As a kind of improvement, said fin 2 is as a whole with said terminal pad 8, make an integral body after, reduced of the influence of joining place slit to conducting heat, the heat of LED 1 can reach fin 2 quickly.And reduced fixing link, simplified the production technology of light fixture.

For conducting heat better, said pedestal 6 is embedded in the fin 2, has increased the contact area of pedestal 6 with fin 2, and it is more even sooner to conduct heat.

For reaching better illuminating effect, also be provided with lens 9 in said LED 1 front, lens 9 expand bundle with the light that LED1 sends, and make the irradiate light area bigger.

Outside lens 9, also be provided with diffuser 10, diffuser 10 surfaces are done frosted and are handled, and light is through softer behind the

diffuser

10, and 10 pairs of inner members of diffuser also have the certain protection effect simultaneously.

Another kind improves, and also comprises reflection shield 4, and said reflection shield 4 is fixed on the terminal pad 8.Reflection shield 4 is collected scattered light, and scattered light is reflected on the main direction of illumination of light fixture, makes light more concentrated, prevents dazzle simultaneously.

Claims

1. passive radiating high-power LED light fixture; Comprise terminal pad (8) and be arranged on the pedestal (6) on the terminal pad (8); Said pedestal (6) is gone up LED (1) is installed, and said terminal pad (8) upside is installed fin (2), it is characterized in that: also comprise heat pipe (7); Said heat pipe (7) one ends embed pedestal (6), and the other end inserts fin (2).

2. according to the said passive radiating high-power LED light fixture of claim 1, it is characterized in that: said fin (2) is as a whole with said terminal pad (8).

3. according to the said passive radiating high-power LED light fixture of claim 2, it is characterized in that: said pedestal (6) is embedded in the fin (2).

4. according to the said passive radiating high-power LED light fixture of claim 1, it is characterized in that: also be provided with lens (9) in said LED (1) front.

5. according to the said passive radiating high-power LED light fixture of claim 4, it is characterized in that: outside said lens (9), also be provided with diffuser (10).

6. according to the said passive radiating high-power LED light fixture of claim 1, it is characterized in that: also comprise reflection shield (4), said reflection shield (4) is fixed on the terminal pad (8).