CN1964609A

CN1964609A - Fin for heat radiation and heat radiator using same

Info

Publication number: CN1964609A
Application number: CN 200510101188
Authority: CN
Inventors: 彭学文
Original assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-11-10
Filing date: 2005-11-10
Publication date: 2007-05-16
Anticipated expiration: 2025-11-10
Also published as: CN100534278C

Abstract

The related radiation device for electronic element comprises: a base, and some radiation fins every with a body arranged two flow deflectors near the middle part. Wherein, the distance between ends near flow deflectors is over the middle distance to let the middle part have wide port. This invention can improve the device radiation capacity.

Description

Radiating fin and use the heat abstractor of this radiating fin

[technical field]

The present invention relates to a kind of radiating fin and use the heat abstractor heat abstractor of this radiating fin, be meant a kind of radiating fin of auxiliary electron element radiating especially and use the heat abstractor of this radiating fin.

[background technology]

As everyone knows, electronic component such as central processing unit produces a large amount of heat in running.For preventing that thereby this heat-generating electronic elements from causing its temperature rising to cause its fluctuation of service, this electronic component need install a heat abstractor usually additional with auxiliary its heat radiation because of the accumulation of heat.

Usually, the heat abstractor that is used for electronic element radiating comprises a radiator, and this radiator comprises a base and is located at some radiating fins on this base.Each fin is plate shaped, and these some fins form some gas channels with being bonded on this base that a determining deviation is parallel to each other between these some fins.For improving the radiating effect of this heat abstractor, this heat abstractor also comprises a fan, and the gas channel setting between its corresponding fin is to provide the strong convection air-flow to this radiator.This fan generally comprises a wheel hub district and the radiation flabellum district around in this wheel hub district, and this wheel hub district is to the middle part of fin that should radiator usually, and the limit portion of the corresponding fin in flabellum district.Yet, when fan work, have only its flabellum district to produce air-flow, and the wheel hub district does not have air-flow to produce, so, the middle part of fin that should the wheel hub district is had only a spot of air communication mistake, then there is a large amount of air communication mistakes in the fin limit portion in corresponding flabellum district, so the air-flow skewness on the whole fin, thereby the heat of the middle part of fin can not be distributed to away faster, easily causes heat gathering in the fin middle part.So this heat abstractor needs further to improve.

[summary of the invention]

In view of this, the heat abstractor that is necessary to provide a kind of radiating fin of rapid heat dissipation and uses this radiating fin.

A kind of radiating fin comprises a body, and this body relies on its middle part and is formed with two relative flow deflectors, and the tip spacing of this two flow deflectors, one correspondence is big than the middle part spacing of its correspondence.

A kind of heat abstractor, be used for heat-generating electronic elements is dispelled the heat, this heat abstractor comprises a base and the some radiating fins that are connected with this base, each fin comprises a body, this body is provided with two flow deflectors near its middle part, this two flow deflector is divided into this body at two limit portions of these two flow deflectors both sides and the pars intermedia between this two flow deflector, and the tip spacing of this two flow deflectors, one correspondence makes this pars intermedia have the port of broad greatly than the middle part spacing of its correspondence.

Compared with prior art, two flow deflector steering currents are by the pars intermedia of this fin body on the fin body, and then make the heat of this fin pars intermedia can be distributed to surrounding space rapidly, and the overall utilization rate of fin and usefulness improve, and the heat-sinking capability of this heat abstractor promotes.

With reference to the accompanying drawings, the invention will be further described in conjunction with the embodiments.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of radiating fin of the present invention and heat abstractor one embodiment that uses this radiating fin.

Fig. 2 is the stereogram of Fig. 1 fin.

Fig. 3 is the three-dimensional assembly diagram of Fig. 1.

[embodiment]

See also Fig. 1, this heat abstractor comprises a base 10, be located at a fins group 30 on this base 10, connect two heat pipes 50 of this base 10 and fins group 30 and be located at a fan component 70 of these fins group 30 1 sides.

Base 10 comprises that a square floor 100 reaches from outward extending four fixing feet 110 of 100 4 jiaos of outer rims of this base plate.This base plate 100 has high-termal conductivity, and it has a upper surface and the lower surface that be used for contact heating electronic component relative with this upper surface, and this upper surface is provided with two parallel grooves of cross section semicircular in shape, with ccontaining two heat pipes 50.The end of each fixing feet 110 is provided with a fixing hole, is used for wearing and this heat abstractor being fixed to circuit board for retaining element.

See also Fig. 2, fins group 30 comprises some radiating fins 300, and each fin 300 comprises a square body 310 and first and second flanging 320,330 that vertically bends in the same way from these body 310 upper and lower two edges.Corresponding base plate 100 grooves 101 places, the lower end of this second flanging 330 and this body 310 form two semi-circular cut-out 331.Go out two relative flow deflectors 311 on this body 310, thereby form two slotted eyes 314 on this body 310.This two flow deflector 311 is approximately perpendicular to this body 310 and folds.The middle part of this two flow deflector 311 parallels, and is parallel to the last lower limb of body 310, and two ends are towards four angular direction of body 310, thereby the spacing of these two flow deflectors, 311 corresponding ends is greater than the spacing at its corresponding middle part.This two flow deflector 311 is divided into the pars intermedia 313 that two limit portions 312 in these two flow deflectors, 311 both sides reach between this two flow deflector 311 with this fin 300, and this pars intermedia 313 has the arrival end 315 and the port of export 316 of broad.This body 310 is provided with two perforates 317, and wherein a perforate 317 is between this two flow deflector 311, and another perforate 317 is positioned at the upper edge near body 310.In 30 groups of this fins, first and second flanging 320,330 of each fin 300 is the upper and lower edge of the body of butt adjacent fin 300 respectively, and 300 of adjacent fin form gas channel (not indicating).The groove 331 that the otch 331 of these some fins 300 forms in conjunction with heat pipe 50, the through hole 318 that perforate 317 forms in conjunction with heat pipe 50.Second flanging 330 forms the faying face of the base plate 100 of joint base 10.

Each heat pipe 50 is " U ", comprises one first heat transfer segment 510, second heat transfer segment 520 parallel with this first heat transfer segment 510, and connects the interlude 530 of this first and second heat transfer segment 510,520.The junction of first and second heat transfer segment 510,520 and interlude 530 is curved.

This fan component 70 comprises that a fan 71 and is used for this fan 71 is fixed to the fan Fixture 73 of fins group 30.This fan 71 comprises a hub portion 710 and the flabellum portion 720 of a radiation around this hub portion.This fan Fixture 73 comprises the sidewall that is provided with retaining element (not indicating) that some bendings form.

See also Fig. 3, second flanging, the 330 formed faying faces of this fins group 30 are bonded to the upper surface of the base plate 100 of base 10 by welding, method such as bonding.First heat transfer segment 510 of heat pipe 50 is bonded in the groove 101 formed passages of the groove 332 of fins group 30 and base plate 100, second heat transfer segment 520 is bonded in two through holes 318 of fins group 30, thereby second heat transfer segment 520 of this two heat pipe 50 contacts the middle part and the top of fins group 30 respectively.Fan 71 is towards the gas channel of 300 of fins and be fixed to a side of fins group 30 by the retaining element of fan Fixture 73.Thereby the inbound port 315 of the pars intermedia 313 of the hub portion 710 corresponding fins 300 of fan 71, the limit portion 312 of flabellum portion 720 corresponding fins 300, and the corresponding end of two flow deflectors 311 of these fin 300 bodies 310 is stretched to this flabellum portion 720.

During use, the base plate 100 of above-mentioned heat abstractor base 10 conforms on the electronic component, absorb the heat that electronic component produces, thereby the part heat is passed to the bottom of fins group 30, the part heat is absorbed by first heat transfer segment 510 of heat pipe 50 and arrives the middle part of fins 300 and away from the top of base 10, the heat that arrives fin 300 is distributed to surrounding space rapidly under the strong convection air-flow of fan 71 by interlude 530, second heat transfer segment 520.

Compared with prior art, on the body 310 of fin 300 by this two flow deflector 311 is set, make the pars intermedia 313 of this body 310 have bigger air flow inlet end 315, thereby the part air-flow that the flabellum portion 720 of guiding fan 71 produces is by the pars intermedia 313 that suitably leads, make the air-flow of flabellum portion 720 generations of this fan 71 comparatively be evenly distributed to this fin 300, thereby make the heat on these fin 300 pars intermedias 313 also can be distributed to surrounding space rapidly, the overall utilization rate of fin 300 and usefulness improve, and the heat-sinking capability of this heat abstractor promotes.

Claims

1. a radiating fin comprises a body, it is characterized in that: this body relies on its middle part and is formed with two relative flow deflectors, and the tip spacing of this two flow deflectors, one correspondence is big than the middle part spacing of its correspondence.

2. radiating fin as claimed in claim 1 is characterized in that: the middle part of described two flow deflectors parallels.

3. radiating fin as claimed in claim 2 is characterized in that: described body is square, and the middle part of this two flow deflector is parallel to relative both sides of this body.

4. radiating fin as claimed in claim 2 is characterized in that: another corresponding tip spacing of described two flow deflectors is big than the middle part spacing of its correspondence.

5. radiating fin as claimed in claim 1 is characterized in that: described two flow deflectors vertically wash off from described body, and correspondence stays slotted eye on this body.

6. radiating fin as claimed in claim 1 is characterized in that: relative two edges bending extending two flangings of described body.

7. heat abstractor, comprise a base and the some radiating fins that are connected with this base, each fin comprises a body, it is characterized in that: the body of this fin is provided with two flow deflectors near its middle part, this two flow deflector is divided into this body at two limit portions of these two flow deflectors both sides and the pars intermedia between this two flow deflector, and the tip spacing of this two flow deflectors, one correspondence makes this pars intermedia have the port of broad greatly than the middle part spacing of its correspondence.

8. heat abstractor as claimed in claim 7 is characterized in that: the middle part of described two flow deflectors parallels.

9. heat abstractor as claimed in claim 8 is characterized in that: described two flow deflectors wash off from described body, and correspondence forms two slotted eyes on this body.

10. heat abstractor as claimed in claim 9 is characterized in that: another corresponding end spacing of described two flow deflectors is big than the middle part spacing of its correspondence.

11. as each described heat abstractor in the claim 7 to 10, it is characterized in that: described two flow deflectors go out with respect to the vertical bending of described body.

12. as each described heat abstractor in the claim 7 to 10, it is characterized in that: two flangings are extended in relative two edges of described fin body.

13. heat abstractor as claimed in claim 12 is characterized in that: a described wherein flanging and described base are fitted.

14. heat abstractor as claimed in claim 7 is characterized in that: also comprise a heat pipe, this heat pipe comprises first heat transfer segment that is bonded to the base that send and second heat transfer segment that is bonded to described fin.

15. heat abstractor as claimed in claim 14, it is characterized in that: also comprise another heat pipe, this heat pipe comprises first heat transfer segment that is bonded to described base and second heat transfer segment that is bonded to described fin, and second heat transfer segment of described two heat pipes is passed the limit portion and the middle part of this fin respectively.

16. heat abstractor as claimed in claim 7 is characterized in that: also comprise a fan, the port setting of the corresponding described fin body pars intermedia of this fan.

17. heat abstractor as claimed in claim 16, it is characterized in that: described fan comprises a hub portion and the flabellum portion of radiation around this hub portion corresponding to described fin body pars intermedia port, and the corresponding end of two flow deflectors of described fin body is stretched to the flabellum portion of this fan.