CN1542950A

CN1542950A - Heat sink

Info

Publication number: CN1542950A
Application number: CNA031143814A
Authority: CN
Inventors: 李学坤; 鲁翠军; 孙明贤
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-04-28
Filing date: 2003-04-28
Publication date: 2004-11-03

Abstract

A radiation device includes a heat pipe and several build-up radiation fins mounted on the heat pipe, among which, the radiation fins include a first and a second radiation fins, the first one has a first jointing edge with a notch and a first fastening unit an the second one has a second jointing edge corresponding to the first edge with a second fastening corresponding to the first slidingly locked together.

Description

Heat abstractor

[technical field]

The invention relates to a kind of heat abstractor, refer in particular to a kind of heat abstractor that radiating fin combines with heat conducting element of being convenient to.

[background technology]

Be accompanied by the constantly development of electronic information industry, electronic component (particularly CPU) running frequency and speed are also in continuous lifting.The heat that high-frequency high-speed will make electronic component produce is more and more, temperature is also more and more higher, single radiator can not be satisfied the demand, in order in time to discharge a large amount of heats that the electronic component operation is produced, industry adopts the good heat pipe of radiator and heat-conducting effect to combine usually, get rid of with the heat that electronic component is produced, thereby make electronic component normally to move.

See also Fig. 1, be No. 511876 disclosed a kind of heat abstractor that utilizes heat pipe of Taiwan patent announcement, it mainly comprises an absorber 30, one heat pipe 50 and a radiator 40, wherein this radiator 40 comprises some radiating fins 42, all offer a through hole on these radiating fins 42, each through hole periphery is provided with flange 44 to same direction, the assembling sequence of this heat abstractor 1 is: evenly be coated with one deck heat-conducting medium (such as tin cream or tinfoil paper etc.) on the surface of heat pipe 50 1 ends, be located in then in the through hole of these radiating fins 42 formation, yet the mode that this heat pipe combines with each radiating fin, as easy as rolling off a logly in passing the process of through hole, heat pipe scrapes the part heat-conducting medium, make the heat-conducting medium skewness, thereby make loose contact between heat pipe and the radiating fin, cause the thermal resistance between heat pipe and radiating fin to increase, thereby reduced the heat dispersion of heat abstractor.

Fig. 2 is the heat dissipation element structure that another money of No. 332681 exposure of Taiwan patent announcement utilizes heat pipe, it mainly comprises a heat pipe 3, has some radiating fins 1 of a perforation and the outer tube 2 that a heating tube 3 is made expander, its assembling process is earlier this outer tube 2 to be located in the above-mentioned radiating fin 1 formed perforation lanes, again this heat pipe 3 is passed this outer tube 2 and this outer tube 2 is carried out expander, thereby radiating fin 1 and this heat pipe 3 are combined.But the combination of this radiating fin and heat pipe is passed outer tube at heat pipe and is carried out in the process of expander, because heat pipe is pushed by external force, damages heat pipe easily.

[summary of the invention]

Main purpose of the present invention is to provide a kind of heat abstractor of being convenient to match with heat pipe with prepackage function.

For achieving the above object, technical scheme of the present invention is as follows:

Heat abstractor of the present invention comprises heat conducting element and at least one composite type fin, and this composite type fin can combine with heat conducting element, and it comprises one first fin and one second fin.This first fin has one first pair of edge fit, and this first pair of edge fit is provided with at least one short slot and at least one first fastener.Second fin has and first pair of corresponding second pair of edge fit of edge fit, this second pair of edge fit is provided with and corresponding second fastener of first fastener, the butt joint of this short slot and second fin forms the perforation that wears for heat conducting element, but this first fastener and this second fastener slide relative snap together.

Owing to adopted technique scheme, first fin of heat abstractor of the present invention and second fin can snap together to slide relative, can cooperate flexibly with heat pipe with the pilot hole that the combination of second fin forms by short slot, it is compared with existing fit system, heat pipe contacts well with fin, and assembling the time can not damage heat pipe.

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

[description of drawings]

Fig. 1 is the three-dimensional exploded view of the heat abstractor of No. 511876 exposure of Taiwan patent announcement.

Fig. 2 is the three-dimensional exploded view of the heat abstractor of No. 332681 exposure of Taiwan patent announcement.

Fig. 3 is the three-dimensional exploded view of the composite type fin preferred embodiment in the heat abstractor of the present invention.

Fig. 4 is that Fig. 3 becomes the three-dimensional combination figure under the prepackage state.

Fig. 5 is that Fig. 3 becomes the three-dimensional combination figure under the installment state.

Fig. 6 is the three-dimensional assembly diagram of heat abstractor preferred embodiment of the present invention.

[embodiment]

Please together with reference to Fig. 3 to Fig. 6, composite type fin 1 in the heat abstractor preferred embodiment of the present invention, be used for being assemblied on the heat pipe 30, it mainly comprises one first fin 10 and one second fin 20, and it all is to be formed by heat conductivility good metal made.

First fin 10 has one first pair of edge fit 11, the two ends that rely on of this first pair of edge fit 11 are respectively equipped with a semicircle short slot 13, each short slot 13 edge all vertical first fin 10 place faces extend a flange 132, and this flange 132 is used for increasing the contact area of first fin 10 and heat pipe 30.The central part of this first pair of edge fit 11 is provided with one first fastener 15, certainly, more first fastener 15 can be arranged also.This first fastener 15 is to extend vertically upward earlier behind the segment distance again that horizontal-extending forms, the both sides of this first fastener 15 are respectively equipped with a grab 152, and this grab 152 forms from end reverse again extension after a segment distance is extended in both sides of this first fastener 15 earlier.The both sides that are positioned at this first fastener 15 on this first pair of edge fit 11 are respectively equipped with a groove 17.

This second fin 20 has one and first pair of edge fit, 11 corresponding second pair of edge fit 21.This second pair of edge fit 21 is provided with and short slot 13 corresponding second half circular short slots 23, and each short slot 23 edge is equipped with the flange 232 perpendicular to second fin 20.The central part of this second pair of edge fit 21 is provided with one and first fastener, 15 corresponding second fasteners 25.This second fastener 25 be behind second pair of edge fit, 21 horizontal-extendings, one segment distance oppositely bending form, it has two protuberances 252 and a breach 27, this protuberance 252 is provided with a chute 253 that is used for being installed with this first grab 152.

Composite type fin 1 in the heat abstractor of the present invention is under the prepackage state, and first fastener 15 of first fin 10 and second fastener 25 of second fin 20 overlap, and is provided with a slit 120 between this first pair of edge fit 11 and second pair of edge fit 21.The grab 152 of first fastener 15 is buckled in the chute 253 of this second fastener 25, and can slide along this chute 253.

Composite type fin 1 in the heat abstractor of the present invention is under installment state, first fin 10 and second fin 20 are docking together fully, short slot 13 docks with short slot 23 and forms a circular perforations 210, the grab 152 of this first fastener 15 has slided into the end of this second fastener 25, and two protuberances 252 of second fastener 25 are absorbed in the groove 17 of this first fin 10.

Please refer to Fig. 6, Several combination formula fin 1 is set in and forms heat abstractor of the present invention on two heat pipes 30.During assembling, on heat pipe 30, be coated with earlier, again composite type fin 1 be set on the heat pipe 30 under the prepackage state, make heat pipe 30 between short slot 13 and short slot 23 with tin cream.Because of being provided with a slit 120 between first pair of edge fit 11 and second pair of edge fit 21, making composite type fin 1 need not to apply excessive external force opposite heat tube 30 when mounted pushes, thereby can avoid opposite heat tube 30 to damage, also can not scrape the tin cream that is coated in heat pipe 30 surfaces.At last, first fin 10 and second fin 20 are docked fully enter into installment state and weld, heat pipe 30 and composite type fin 1 are combined, promptly finish assembling.

Be appreciated that ground, according to the difference of heat pipe shape, can only offer short slot on first fin 10 or second fin 20, certainly, the shape of this short slot is corresponding with the heat pipe profile, and its quantity also is not limited to have only two, and corresponding with the quantity of heat pipe.

Claims

1. heat abstractor, comprise heat conducting element and at least one composite type fin, this composite type fin can combine with heat conducting element, it comprises one first fin and one second fin, this first fin is provided with at least one short slot, this short slot and the corresponding formation one of this second fin are sheathed on the perforation on this heat conducting element, it is characterized in that: this first fin is provided with at least one first fastener, this second fin is provided with second fastener corresponding with first fastener, and this first fastener and this second fastener snap together mutually.

2. heat abstractor as claimed in claim 1 is characterized in that: this second fin is to offering another short slot in the first fin short slot place.

3. heat abstractor as claimed in claim 2 is characterized in that: this short slot semicircular in shape.

4. heat abstractor as claimed in claim 1 or 2 is characterized in that: this short slot edge is provided with a flange.

5. heat abstractor as claimed in claim 1 is characterized in that: this heat conducting element is a heat pipe.

6. heat abstractor as claimed in claim 1 is characterized in that: this first fastener after the first pair of edge fit of first fin extends a segment distance earlier vertically upward again horizontal-extending form.

7. heat abstractor as claimed in claim 1 is characterized in that: this second fastener is to form by oppositely bending behind second pair of edge fit horizontal-extending one segment distance.

8. heat abstractor as claimed in claim 6 is characterized in that: the both sides of this first fastener are respectively equipped with a grab.

9. heat abstractor as claimed in claim 8 is characterized in that: this grab is oppositely to be extended earlier by this first fastener to form after a segment distance is extended in both sides again.

10. heat abstractor as claimed in claim 7 is characterized in that: this second fastener is provided with two protuberances and a breach.

11. heat abstractor as claimed in claim 10 is characterized in that: all be formed with a chute on this two protuberance.

12. composite type fin, this composite type fin can combine with heat conducting element, it comprises one first fin and one second fin, this first fin has one first pair of edge fit, this first pair of edge fit is provided with at least one short slot, this second fin has and the corresponding second pair of edge fit of first pair of edge fit of first fin, this short slot and second pair of edge fit butt joint form the perforation that wears for heat conducting element, it is characterized in that: this first pair of edge fit is provided with at least one first fastener, this second pair of edge fit is provided with second fastener corresponding with first fastener, but this first fastener and this second fastener slide relative snap together.