CN201757373U

CN201757373U - Light emitting diode radiating module

Info

Publication number: CN201757373U
Application number: CN2010202969515U
Authority: CN
Inventors: 郭雪梅; 吴政道; 谢凤人
Original assignee: Mitac Precision Technology Kunshan Ltd
Current assignee: Mitac Precision Technology Kunshan Ltd
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2011-03-09
Anticipated expiration: 2020-08-19

Abstract

A light emitting diode radiating module comprises a radiator, a dielectric layer, a conductive layer, heat conduction materials and a light emitting diode dies. The radiator is provided with an upper surface and a plurality of radiating fins, the dielectric layer is disposed on the upper surface of the radiator and provided with at least one first hole, the first holes are exposed from the upper surface of the radiator, the conductive layer is printed on the dielectric layer, the dielectric layer is provided with at least one second hole, the second holes are exposed from the first hole, the heat conduction materials are arranged in the first holes and the second holes and directly contact with the upper surface of the radiator, and the light emitting diode dies are electrically connected with the conductive layer and directly contact with the heat conduction materials. The light emitting diode radiating module is fine in radiating effect, and prolongs service life of light emitting diodes.

Description

The LED heat radiating module

[technical field]

The utility model relates to a kind of heat radiation module, is specifically related to a kind of LED heat radiating module.

[background technology]

Along with the enhancing of global environmental consciousness, energy saving has become current trend.Advantages such as light emitting diode (LED) is energy-conservation because of having, power saving, high efficiency, the reaction time is fast, life cycle is long obtain use more and more widely, for example along with the development of high power high luminance diode, diode applications is in illumination, display backlight source, auto lamp source and mini projector.

Yet at present the input power of light emitting diode has only 15% to 20% to convert light to, and 80% to 85% convert heat to, if these heats can't in time discharge, the interface temperature that makes LED wafer is too high and influence its luminous intensity and service life.

See also shown in Figure 1ly, it illustrates the schematic diagram of existing LED heat radiating module.Existing LED heat radiating module increases by a radiator 10 on the basis of aluminium base 30, the heat of light emitting diode 20 is reached on the radiator 10 helping by thermal grease 40 dispel the heat, but its thermal conductivity is relatively poor, and the production quality is difficult for management and control.

The patent No. is to mention a kind of LED heat radiating module in the United States Patent (USP) of US5857767, it directly adopts screen to print dielectric layer and conducting channel on aluminium alloy heat radiator, wherein LED crystal particle is placed on the conducting wire, middle hollow out, yet the vertical heat transfer part of this light emitting diode does not directly contact with radiator, the centre has air layer and two interface layer of dielectric layer to intercept, and directly influences its radiating effect, has shortened the service life of light emitting diode.

In view of this, in fact be necessary to develop a kind of novel LED heat radiating module, the good heat dissipation effect of this LED heat radiating module, and promoted service life of light emitting diode.

[summary of the invention]

Therefore, the purpose of this utility model provides a kind of LED heat radiating module, the good heat dissipation effect of this LED heat radiating module, and promoted service life of light emitting diode.

In order to achieve the above object, LED heat radiating module of the present utility model, it comprises:

Radiator, this radiator are provided with a upper surface and some radiating fins;

Dielectric layer, it is disposed on the upper surface of above-mentioned radiator, and this dielectric layer is provided with at least one first hole, and this first hole exposes the upper surface of above-mentioned radiator;

Conductive layer, it is printed on the above-mentioned dielectric layer, and this conductive layer is provided with at least one second hole, and this second hole exposes above-mentioned first hole;

Heat Conduction Material, it is located in above-mentioned first hole and second hole, and this Heat Conduction Material directly contacts with the upper surface of above-mentioned radiator;

LED crystal particle, itself and above-mentioned conductive layer electrically connect, and LED crystal particle directly contacts with above-mentioned Heat Conduction Material.

Compared to prior art, LED heat radiating module good heat dissipation effect of the present utility model, and promoted life-span of light emitting diode.

[description of drawings]

Fig. 1 illustrates the schematic diagram of existing LED heat radiating module.

Fig. 2 illustrates the schematic diagram of the utility model LED heat radiating module first embodiment.

Fig. 3 illustrates the enlarged drawing at A place among Fig. 2.

Fig. 4 illustrates the schematic diagram of the utility model LED heat radiating module second embodiment.

[specific embodiment]

Please consult Fig. 2, shown in Figure 3 respectively, it illustrates the enlarged drawing at A place in the schematic diagram, Fig. 2 of the utility model LED heat radiating module first embodiment respectively.

In first embodiment, LED heat radiating module of the present utility model, it comprises:

Radiator 100, this radiator 100 is provided with a upper surface 110 and some radiating fins 120, the material of this radiator 100 is aluminium alloy or magnesium alloy, this radiator 100 adopts chemistry or the processing of chemical etching mode micropore, radiating fin 120 surfaces after the micropore processing produce micropore 121, increase the surface area of heat radiation, improved radiating effect;

Dielectric layer 300, it adopts the mode of wire mark coating to be disposed on the upper surface 110 of above-mentioned radiator 100, and this dielectric layer 300 is provided with at least one first hole 310, and this first hole 310 exposes the upper surface 110 of above-mentioned radiator 100;

Conductive layer 400, its mode by screen painting or inkjet printing is printed on the above-mentioned dielectric layer 300, this conductive layer 400 is provided with at least one second hole 420, and this second hole 420 exposes above-mentioned first hole 310, and this conductive layer 400 is provided with conductive adhesive layer 410;

Heat Conduction Material 500, it is located in above-mentioned first hole 310 and second hole 420, and this Heat Conduction Material 500 directly contacts with the upper surface 110 of above-mentioned radiator 100, and in this first embodiment, this Heat Conduction Material 500 is a heat-conducting cream;

LED crystal particle 200, two contact conductors 210 of this LED crystal particle 200 are connected with above-mentioned conductive adhesive layer 410 or weld, and then electrically connect with above-mentioned conductive layer 400, and LED crystal particle 200 directly contacts with above-mentioned Heat Conduction Material 500, makes the radiating effect of this LED heat radiating module better.

See also shown in Figure 4ly, it illustrates the schematic diagram of the utility model LED heat radiating module second embodiment.This second embodiment is with the different of above-mentioned first embodiment, among this second embodiment, two electrodes 220 of LED crystal particle 200 are plane electrode, this plane electrode 220 is connected with conductive adhesive layer 420, and then electrically connect with conductive layer 400, and the height of 100 Heat Conduction Materials that are provided with 500 of this LED crystal particle 200 and above-mentioned radiator is concordant with conductive adhesive layer 420.

LED heat radiating module of the present utility model is directly made circuit at radiator, has reduced by an interface layer, has improved radiating effect; Light emitting diode directly contacts by Heat Conduction Material with above-mentioned radiator, has improved radiating effect; After this radiator process surface micropore processing, surface area increases, and makes its radiating effect better.

Claims

1. a LED heat radiating module is characterized in that, this LED heat radiating module comprises:

2. LED heat radiating module according to claim 1 is characterized in that, the material of above-mentioned radiator is aluminium alloy or magnesium alloy.

3. LED heat radiating module according to claim 1 is characterized in that the radiating fin of above-mentioned radiator is provided with micropore.

4. LED heat radiating module according to claim 1 is characterized in that, above-mentioned LED crystal particle electrically connects by conductive adhesive layer and above-mentioned conductive layer.

5. according to according to claim 1 or 4 described LED heat radiating modules, it is characterized in that two electrodes of above-mentioned LED crystal particle are the lead-in wire electrode.

6. according to according to claim 1 or 4 described LED heat radiating modules, it is characterized in that two electrodes of above-mentioned LED crystal particle are plane electrode.

7. LED heat radiating module according to claim 1 is characterized in that, above-mentioned Heat Conduction Material is a heat-conducting cream.