CN201306694Y

CN201306694Y - LED heat dissipation module

Info

Publication number: CN201306694Y
Application number: CNU2008201370063U
Authority: CN
Inventors: 覃腾志; 朱新良
Original assignee: QIHONG ELECTRONICS (SHENZHEN) CO Ltd
Current assignee: QIHONG ELECTRONICS (SHENZHEN) CO Ltd
Priority date: 2008-09-12
Filing date: 2008-09-12
Publication date: 2009-09-09
Anticipated expiration: 2018-09-12

Abstract

The utility model discloses an LED heat dissipation module which comprises a heat dissipation bottom plate, a first heat dissipation fin group, at least one second heat dissipation fin group and at least one heat pipe, wherein The heat dissipation bottom plate is in butt joint with the LED module; the first heat dissipation fin group comprises a plurality of heat dissipation fins which are arranged at certain intervals; the first heat dissipation group is in butt joint with the heat dissipation bottom plate; the second heat dissipation pin group comprises a plurality of heat dissipation fins which are arranged at certain intervals; a flow passage is formed between the heat dissipation fins; the heat pipe comprises a conducting part and a heat dissipation part; the conducting part is arranged at the joint part of the heat dissipation bottom plate and first heat dissipation fin group, and is respectively in contact with the heat dissipation bottom plate and the first heat dissipation fin group; the heat dissipation part is arranged at both sides of the heat dissipation bottom; and the conducting part extends in a direction far away from the heat dissipation bottom plate, and passes through the second heat dissipation fin group. The utility model improves the heat dissipation efficiency of the LED heat dissipation module.

Description

The LED module that dispels the heat

Technical field

The utility model relates to the manufacturing technology field, relates in particular to a kind of LED heat radiation module.

Background technology

Because the LED (Light Emitting Diode) and the technology of white light LEDs reach its maturity, it is applied to desk lamp, projecting lamp, street lamp ... wait product to develop out gradually, make the LED illumination epoch arrive, and the trend that replaces incandescent osram lamp is arranged, become the main light source of room lighting.

LED is a kind of semiconductor devices, the difference of it and conventional incandescent osram lamp is that the conventional incandescent osram lamp is to make the filament heating up to luminous with big electric current, LED then be utilize electronics in the semi-conducting material electronic in conjunction with the time show the energy that it discharges in luminous mode, make LED only need minimum electric current just can inspire the quite high light of brightness.This makes that can save the energy (being power consumption) can reduce greenhouse effects again.

Yet the maximum technical problem of LED ties up in heat dissipation problem at present; Because of LED brightness increases gradually, with the also rapid rising of the heat that LED is supervened in luminescence process,, the LED whole service life is shortened if fail in real time the heat that produces to be derived, more may cause nearby electronic components to damage, a big problem of endeavouring to study for relevant dealer.

The heat abstractor of available technology adopting as shown in Figure 1, this LED radiator, comprise a radiating fin group 10, a base plate 11 and a led module 12, above-mentioned radiating fin group 10 has a plurality of radiating fins 100, these a plurality of radiating fins 100 are connected with the last plane of above-mentioned base plate 11, and connected mode is that radiating fin group 10 is directly welded on the above-mentioned base plate 11 on the plane.And above-mentioned led module 12 is positioned under above-mentioned base plate 11 planes, when led module 12 sends visible light and produces heat, by base plate 11 heat is conducted to radiating fin group 10, makes radiating fin group 10 and air carry out heat exchange and take away heat.But in the heat radiation process, make air must walk around base plate 11 could to contact with radiating fin group 10 and then dispel the heat because of being subjected to blocking of base plate 11, and air can be disperseed when walking around base plate 11 and can't be concentrated, make radiating fin group 10 only can carry out heat exchange with the part air, and then cause the heat on the radiating fin group 10 to make that radiating effect is not good and area of dissipation is limited effectively rapidly to the external diffusion heat radiation.

In realizing process of the present utility model, the designer finds that there is shortcoming at least in prior art:

The hot side of LED radiator is long-pending limited, and radiating effect is not good.

The utility model content

The utility model provides a kind of LED heat radiation module, to realize high efficiency, larger area heat radiation.

For achieving the above object, the utility model provides a kind of LED heat radiation module, comprising: radiating bottom plate, the first radiating fin group, at least one the second radiating fin group and at least one heat pipe;

Radiating bottom plate docks with led module;

The first radiating fin group, the described first radiating fin group comprises a plurality of radiating fins, described radiating fin is arranged at certain intervals, and the described first radiating fin group is docked with described radiating bottom plate;

At least one second radiating fin group, the described second radiating fin group comprises a plurality of radiating fins, described radiating fin is arranged at certain intervals, and forms a runner between described each radiating fin;

At least one heat pipe, described heat pipe comprises conducting part and radiating part, described conducting part is positioned at the junction of described radiating bottom plate and the described first radiating fin group, and respectively with described radiating bottom plate and the described first radiating fin set of contact; Described radiating part is positioned at described radiating bottom plate both sides, and by described conducting part to extending, and through the described second radiating fin group away from described radiating bottom plate direction.

Compared with prior art, there is advantage at least in the utility model:

Because described heat pipe conducts to described first and second radiating fin group with the thermal source of described radiating bottom plate, and described first and second radiating fin group is made up of a plurality of radiating fin, has the heat radiation runner to each other, significantly increase the area of dissipation of aforementioned LED radiating module, and promoted the radiating efficiency of LED significantly.

Description of drawings

Fig. 1 is a LED radiator perspective view in the prior art;

A kind of LED heat radiation modular structure schematic diagram that Fig. 2 provides for the utility model;

Fig. 3 decomposes perspective view for a kind of LED heat radiation module that the utility model provides;

Fig. 4 faces structural representation for a kind of LED heat radiation module that the utility model provides.

[primary clustering symbol description]

Radiating bottom plate 10 runners 310

Groove 110 holes 320

The first radiating fin group, 20 heat pipes 40

Radiating fin 200 conducting parts 410

Shrinkage pool 210 radiating parts 420

The second radiating fin group, 30 heat radiation spaces 421

Radiating fin 300 led modules 50

The specific embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.

The utility model provides a kind of LED heat radiation module, and concrete structure figure is shown in Fig. 2,3,4, and this LED heat radiation modular structure comprises: radiating bottom plate 10, the first radiating fin group 20, at least one the second radiating fin group 30 and at least one heat pipe 40;

Described radiating bottom plate 10 docks with described led module 50; The described second radiating fin group 30 is rearranged by plural pieces radiating fin 300 correspondences, wherein the spacing of 300 of each radiating fins is d1, and form a runner 310 between each radiating fin 300, wherein runner 310 can make the sink flows body quick and smooth and easy by each radiating fin 300, so that the second radiating fin group 30 can reach the effect of quick heat radiating.Simultaneously, increased the heat-dissipating space of above-mentioned radiating fin 300.

The described first radiating fin group 20 is made up of a plurality of radiating fin 200 corresponding institutes of arranging, and wherein the spacing of 200 of each radiating fins is d2, and a side of the above-mentioned first radiating fin group 20 is docked with radiating bottom plate 10;

In addition, described heat pipe 40 comprises conducting part 410 and radiating part 420, wherein conducting part 410 is positioned at the junction of the radiating bottom plate 10 and the first radiating fin group 20, and contact with the first radiating fin group 20 with radiating bottom plate 10 respectively, radiating part 420 lays respectively at the both sides of radiating bottom plate 10, and become to extending by conducting part 410, and run through the second radiating fin group 30, so increase area of dissipation and then reach the purpose that promotes radiating efficiency away from the direction of above-mentioned radiating bottom plate 10.

As shown in Figure 3, the first radiating fin group 20 has at least one shrinkage pool 210, radiating bottom plate 10 has at least one groove 110, and above-mentioned shrinkage pool 210 is conducting parts 410 of corresponding heat pipe 40 with groove 110, and the conducting part 410 of heat pipe 40 is fixed within shrinkage pool 210 and the groove 110.Have at least one hole 320 on above-mentioned second radiating fin 30, above-mentioned radiating part 420 1 ends run through the hole 320 of the second radiating fin group 30; In addition, above-mentioned hole 320 shapes can be wherein any one shape of circle or half elliptic or semicircle or triangle, and the mutual corresponding matching of hole 320 shapes of the shape of above-mentioned radiating part 420 and second radiating fin 30.

As shown in Figure 4, the longitudinal length of above-mentioned each radiating part 420 is different with lateral length, make the sink flows physical efficiency flow 420 of radiating parts, and have between each radiating part 420 heat radiation space 421, can promote fluid flow stream freely to spend by above-mentioned heat radiation space 421, and promote rate of heat exchange really with the thermal source band from, the person of advancing promotes heat dissipation; Wherein radiating part 420 integral body are stepped, and systematicness be arranged on the above-mentioned second radiating fin group 30.

As Fig. 2,3, shown in 4, when above-mentioned led module 50 sends visible light source and produces heat, radiating bottom plate 10 conducts to heat earlier the conducting part 410 of heat pipe 40, via conducting part 410 heat is passed to the radiating part 420 and the first radiating fin group 20 respectively again, the first radiating fin group 20 is dispelled the heat with radiation mode heat to external diffusion, simultaneously, radiating part 420 conducts to the second radiating fin group 30 again with heat, because of 300 of each fins in the second radiating fin group 30 have runner 310, and the heat radiation space 421 that sees through radiating part 420 can make the heat radiation fluid flow so that it is dispelled the heat 300 of each fins, and by heat exchange method with the heat band on the second radiating fin group 30 from.The second radiating fin group 30 except with heat with radiation mode to external diffusion, also can utilize the heat radiation fluid in runner 310, to flow, help to make the second radiating fin group 30 and heat radiation fluid to carry out heat exchange and promote radiating efficiency, so effectively promoted the efficient of heat radiation.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a LED heat radiation module is characterized in that, comprising:

Radiating bottom plate docks with led module;

2. LED heat radiation module as claimed in claim 1 is characterized in that described second radiating fin has at least one hole.

3. LED heat radiation module as claimed in claim 1 is characterized in that the described first radiating fin group has at least one shrinkage pool.

4. LED heat radiation module as claimed in claim 3 is characterized in that described radiating bottom plate has at least one groove, and described groove is relative with described shrinkage pool, and described conducting part is fixed within described groove and the described shrinkage pool.

5. LED heat radiation module as claimed in claim 1 is characterized in that the longitudinal length of described each radiating part is different with lateral length.

6. LED heat radiation module as claimed in claim 5 is characterized in that having the heat radiation space between described each radiating part.

7. LED heat radiation module as claimed in claim 5 is characterized in that described radiating part shape and described hole shape are worked in coordination.

8. LED heat radiation module as claimed in claim 7 is characterized in that the hole of described second radiating fin is shaped as any one in circle or half elliptic or semicircle or the triangle.