CN201462739U

CN201462739U - Radiating device

Info

Publication number: CN201462739U
Application number: CN2009200780281U
Authority: CN
Inventors: 黄志超
Original assignee: SHANGHAI YAGAO NEW ENERGY CO Ltd
Current assignee: SHANGHAI YAGAO NEW ENERGY CO Ltd
Priority date: 2009-07-09
Filing date: 2009-07-09
Publication date: 2010-05-12
Anticipated expiration: 2019-07-09

Abstract

The utility model relates to a radiating device which comprises a radiating basal plate; and radiating fins and an LED light source are arranged on two sides of the radiating basal plate respectively. The radiating device is characterized in that an enclosed space for vacuum suction is formed at the inner part of the radiating basal plate and filled with heat-conducting liquids. The utility model has the advantages that the light degradation of the LED light source can be reduced by half, the lighting effect is relatively improved, and the service life can be prolonged by more than one time compared with the LED light source of the conventional radiator.

Description

A kind of heat abstractor

Technical field

The utility model relates to a kind of heat abstractor, is used for the heat radiation of high-power integrated LED street lamp.

Background technology

Shown in Figure 1A and Figure 1B, the heat loss through conduction device of high-power integrated LED road lamp cooling comprises aluminium alloy heat-radiating substrate 3 at present, is respectively equipped with vertical fin 2 and led light source 3 in the both sides of aluminium alloy heat-radiating substrate 3.Because of led light source 3 is to belong to the semiconductor point light source luminescent, the aluminium alloy heat-radiating substrate 3 of behind can produce high temperature during light source luminescent.Traditional radiator heat-transfer rate is slow, and the easy like this led light source that causes produces serious light decay, influences original service life that light efficiency also can shorten LED greatly.

Summary of the invention

The purpose of this utility model provides the fast heat abstractor of a kind of radiator heat-transfer rate.

In order to achieve the above object, the technical solution of the utility model has provided a kind of heat abstractor, comprise heat-radiating substrate, be respectively equipped with fin and led light source in the both sides of heat-radiating substrate, it is characterized in that, be provided with the confined space that vacuumizes in the inside of heat-radiating substrate, in confined space, be marked with conductive fluid.

Further, described confined space be shaped as cuboid, the length X of this confined space is at least 10cm, height Y is 1～10cm, the degree of depth is at least 5cm.

The utility model has mainly utilized the heat conduction principle of heat pipe quick conductive technology.After the integrated point light source light-emitting chip energising, because of heat-radiating substrate behind adopts the superconducting heat radiation, heat is by vacuum heat-conduction liquid conduction heat, heat-transfer rate is than adopting fast tens of times of conventional heat-radiating substrate, the heat that light source produced can be rapidly to around fin above conducting to, fin distributes the heat that conduction comes rapidly again, thereby reaches the purpose that reduces junction temperature.

The utility model has the advantages that: can make the light decay of led light source reduce half, light efficiency also is improved relatively, and can prolong more than one times service life than the led light source of conventional radiator.

Description of drawings

Figure 1A is the structure chart of former radiator;

Figure 1B is the profile of Figure 1A;

The structure chart of a kind of radiator that Fig. 2 A provides for the utility model;

Fig. 2 B is the profile of Fig. 2 A.

The specific embodiment

Specify the utility model below in conjunction with embodiment.

Embodiment

Shown in Fig. 2 A and Fig. 2 B, a kind of heat abstractor that provides for the utility model, comprise heat-radiating substrate 4, be respectively equipped with fin 2 and led light source 1 in the both sides of heat-radiating substrate 4, be provided with the confined space 5 that vacuumizes in the inside of heat-radiating substrate 4, in confined space 5, be marked with conductive fluid. confined space 5 be shaped as cuboid, the length X of this confined space 5 is 25cm, height Y is 5cm, and the degree of depth is 15cm.

Process and traditional heat-dissipating device that heat abstractor provided by the invention is installed are basic identical, on the fin of both sides thickening, respectively bore a screw hole, just can be fixed in the light fixture that has lamp housing or be fixed on the lamp bracket of open type street lamp with bolt, connecting power supply promptly can luminous lighting.

Claims

1. heat abstractor, comprise heat-radiating substrate (4), be respectively equipped with fin (2) and led light source (1) in the both sides of heat-radiating substrate (4), it is characterized in that, be provided with the confined space (5) that vacuumizes in the inside of heat-radiating substrate (4), in confined space (5), be marked with conductive fluid.

2. a kind of heat abstractor as claimed in claim 1 is characterized in that, described confined space (5) be shaped as cuboid, the length X of this confined space (5) is at least 10cm, height Y is 1～10cm, the degree of depth is at least 5cm.