CN1917191A

CN1917191A - Heat sink

Info

Publication number: CN1917191A
Application number: CNA2005100367702A
Authority: CN
Inventors: 李学坤; 陈俊吉; 翁世勋; 余光; 陈永东
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: 2005-08-19
Filing date: 2005-08-19
Publication date: 2007-02-21
Anticipated expiration: 2025-08-19
Also published as: CN100414693C

Abstract

The heat sink includes a radiator, a fan placed on top of the radiator, and a fixing mount for fan. A piece of buckle is fixed on top of the radiator. Being connected to the fan, the fixing mount connects to the piece of buckle through active clip. In the invention, through the piece of buckle and active clip, the heat sink is connected to the fixing mount so as to buckle fan on the radiator. Then, the radiator is installed on circuit board, and afterwards the fixing mount and the fan are installed. The invention installs and dismounts fan in large size conveniently.

Description

Heat abstractor

[technical field]

The present invention relates to a kind of heat abstractor, be meant a kind of heat abstractor especially with fan fixed structure.

[background technology]

Along with developing rapidly of electronic industry, arithmetic speed as electronic components such as central processing units increases substantially, and the heat of its generation also increases severely thereupon, and how the heat with electronic component distributes, to guarantee its normal operation, be the essential problem that solves of dealer always.For effectively distribute the heat that central processing unit produces in running, install a radiator additional on the circuit board in computer casing usually.Yet, with fan fast firm be installed in not a duck soup on the radiator.Existing fan fixing means is a lot, major part be utilize screw with fan directly locking on the radiating fin of radiator, reach combining of fan and radiator.Yet, the mode of this employing screw lock assembling, not only be easy to generate the deviation of assembling location, be pretend on the same group the industry flow process comparatively complicated time-consuming, and very easily damage radiating fin during screw in installing, and make radiating fin produce distortion, cause the screw locking to fluff and fan can not be stabilized on the radiating fin.

Based on above-mentioned deficiency, industry is used fan Fixture instead and is assisted fan is fixed on the radiator, existing fan Fixture is quite a few, for example, the fan Fixture that Chinese patent application is disclosed for No. 01215736.8 is one of them, this fan Fixture mainly comprises a square base, two pairs of clasps and four projections, projection is used for fan is installed on the fan Fixture, clasp then is used for fan Fixture is located on the radiator, thereby need not screw and fan Fixture can be fastened on the radiator.Yet this fan Fixture needs the folding that just can reach its clasp by extracting tool in unloading process, operating process is comparatively complicated, and easily and other electronic components interfere, and then damage other electronic components.

Therefore, need a kind of heat abstractor of design, can avoid above-mentioned defective and install convenient.

[summary of the invention]

By the following examples the present invention is illustrated.

Heat abstractor one embodiment of the present invention comprises that a radiator and places the fan at this radiator top, and this radiator top is fixed with cramp, and a fan Fixture connects said fans and links with above-mentioned cramp active card and connects.

Heat abstractor of the present invention links by cramp and fan Fixture active card and connects, thereby fan is fastened on the radiator, install and convenient disassembly, can earlier cramp be fixed in the radiator top during installation, then radiator is mounted on the circuit board, fan Fixture and fan are installed again, thereby can be avoided installing when using inconvenience than big fan.

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 heat abstractor of the present invention.

Fig. 2 is the part assembly drawing of Fig. 1.

Fig. 3 is the assembly drawing of Fig. 1.

[embodiment]

See also Fig. 1, heat abstractor 8 of the present invention is installed in the computer casing, posts the central processing unit (not shown) on the circuit board 7.This heat abstractor 8 comprises radiator combination 4, one fan Fixture 5 and a fan 8, and wherein the size of fan 8 is greater than the size of radiator combination 4.

See also Fig. 2 simultaneously, this radiator combination 4 comprises a radiator 40, an action bars 48, first cramp 42 and second cramp 43.This radiator 40 comprises a base plate 402 and extends upward majority first radiating fin 404 of setting from base plate 402.402 4 corners of this base plate stretch out and are provided with four card ears 4020.The backboard (not shown) that four fasteners 44 pass card ear 4020 and circuit board 40 bottom surfaces is spirally connected, thereby makes the heat-generating electronic elements hot link that is provided with on radiator 40 and the circuit board 7.These first radiating fin, 404 2 sides are provided with most second radiating fins 406 symmetrically, and wherein the lateral dimension of this second radiating fin 406 is less than the lateral dimension of first radiating fin 404.Further be equiped with three heat pipes 46 in this radiator 40, each heat pipe 46 comprises that an endothermic section 460, is parallel to the connecting portion 464 of heat unit 462 and the connection endothermic section 460 and the heat unit 462 of endothermic section 460, wherein endothermic section 460 is contained between the groove (not icon) and first radiating fin, 404 bottoms on the base plate 402, thereby heat unit 462 runs through first radiating fin 404 and second radiating fin 406 couples together first radiating fin 404 and second radiating fin 406.Action bars 48 comprises a horizontal part 480, an operating portion that goes out from horizontal part 480 terminal vertical extent 482 and the handle 484 that is provided with from operating portion 482 terminal bendings.First and

second cramp

42,43 is welded in the both sides at first radiating fin, 404 tops, wherein first cramp 42 comprises that a body 420 reaches the fin 422 that extends upward setting from body 420 outside vertical, and body 420 is provided with two button holes 424 with the bending places that fin 422 is connected mutually.Second cramp 43 is provided with a reel 430 near an end of heat pipe 46 connecting portions 464, and this reel 430 is used to accommodate the horizontal part 480 of action bars 48.The position of the outside adjacent rolls 430 of second cramp 43 is provided with a support portion 432, and this support portion 432 is used for supporting and accommodating action bars 48 operating portions 480.The outside central authorities of second cramp 43 are provided with an abutting part 434, and this abutting part 434 can prevent that the operating portion 480 of action bars 48 from interfering with first radiating fin, 404 outsides in doing process.The outside of second cramp 43 is provided with a trip 436 away from the position of reel, and wherein this trip 436 is provided with and certain intervals is arranged in order to accommodate operating portion 480 near an end of handles 484 and do not interfere with first radiating fin, 404 outsides with first radiating fin, 404 outsides towards the bending of first radiating fin 404.

The roughly rounded sheet of this fan attachment frame 5, its central authorities are provided with a circular open 52, this fan Fixture 5 is provided with corresponding cramp 56 corresponding to the button hole 424 position horizontal-extendings of first cramp 42, this fan Fixture 5 is provided with corresponding resettlement section 58 corresponding to abutting part 434 positions of second cramp 42, wherein this resettlement section 58 is the setting of U type to form an alcove in order to accommodate and to replace action bars 48 corresponding parts, this fan Fixture 5 is provided with lug 54 corresponding to first radiating fin, 404 diagonally opposing corner position horizontal-extendings, and this lug 54 is provided with through hole 540.

This fan 6 is a centrifugal fan, and it is provided with an air inlet (not shown) and an air outlet 60, and wherein this air inlet is vertical with the direction of air outlet 60.This fan 6 is provided with projection 64 corresponding to the position of fan Fixture 5 lugs 54, and these projection 64 central authorities are provided with corresponding screw (not label) corresponding to through hole 540.

See also Fig. 1-3, be fan 6 sizes of avoiding heat abstractor 8 when big, in assembling process with radiator 40 fasteners 44 and circuit board 7 on other electronic components interfere, cause the difficulty of installing, heat abstractor 8 of the present invention adopts split type installation, at first radiator combination 4 is installed on the circuit board 7; Thereby next is fixedly put fan Fixture 5 on the fan 6 by through hole 540 and fan 6 corresponding screws that screw passes fan Fixture 5; The tongue piece 56 of fan Fixture 5 is inserted in first cramp, the 42 corresponding button holes 424, simultaneously fan Fixture 5 is flat on the top of radiator; The handle 484 of last start action bars 48 is contained in the resettlement section 58 of fan Fixture 5 its operating portion 482, wherein thereby abutting part 434 parts of second cramp 43 resettlement section 58 that is connected to fan Fixture can prevent that resettlement section 58 is out of shape because of the pressure that is subjected to action bars 48 in action bars 48 start processes, and pressing operation bar 48 makes operating portion 482 be snapped in the trip 436 of second cramp 43 near the part of handles 484 downwards simultaneously; Thereby fan 6 is installed in the radiator combination 4 smoothly.

When centrifugal fan 6 running, the flow through opening 52 of radiator 40 and fan Fixture 5 of the thermal current that central processing unit produces sucks from the air inlet of fan 6, blow out from the air outlet 60 of fan 6, thereby the heat that central processing unit is produced distributes.

With fan 6 when heat abstractor 8 is dismantled, start action bars 48 makes its trip that breaks away from second cramp 43 436 that a side of fan Fixture 5 and second cramp 43 are got loose, the tongue piece 56 of fan Fixture 5 opposite sides is extracted out from the button hole 424 of first cramp 42, fan 6 just disassembles from heat abstractor 8 easily together with fan Fixture 5 again.

In sum, heat abstractor 8 of the present invention is not only installed and convenient disassembly, and can avoid the installation inconvenience of large-size fan.

Claims

1. heat abstractor, comprise that a radiator and places the fan at this radiator top, is characterized in that: this radiator top is fixed with cramp, and a fan Fixture connects said fans and links with above-mentioned cramp active card and connects.

2. heat abstractor as claimed in claim 1, it is characterized in that: above-mentioned cramp comprises first cramp and second cramp, this first and second cramp places both sides, radiator top respectively, wherein this first cramp is provided with button hole, said fans fixed mount one side and the corresponding position of button hole are provided with tongue piece, and this tongue piece is stretched and established in the above-mentioned button hole.

3. heat abstractor as claimed in claim 2 is characterized in that: above-mentioned first cramp outside extends upward and is provided with a fin, and above-mentioned button hole is located at the bending place that cramp and fin are connected mutually.

4. heat abstractor as claimed in claim 2 is characterized in that: above-mentioned second cramp, one end is provided with reel, and an outside adjacent with this reel is provided with trip.

5. heat abstractor as claimed in claim 4, it is characterized in that: installing one action bars on above-mentioned second cramp, wherein action bars comprises a horizontal part and the operating portion that goes out from the horizontal part vertical extent, this horizontal part places in the above-mentioned reel, and the operating portion pressure is established the fan Fixture opposite side and buckled in trip.

6. heat abstractor as claimed in claim 5 is characterized in that: the corresponding side of the operating portion of said fans fixed mount and action bars is provided with a U type resettlement section of accommodating the operating portion of action bars.

7. heat abstractor as claimed in claim 6 is characterized in that: above-mentioned second cramp outside central position is provided with an abutting part, and the resettlement section of said fans fixed mount and this abutting part connect.

8. heat abstractor as claimed in claim 1 is characterized in that: above-mentioned radiator comprises first and second radiating fin, and wherein second radiating fin places the first radiating fin both sides and its lateral dimension lateral dimension less than first radiating fin.

9. heat abstractor as claimed in claim 8, it is characterized in that: above-mentioned heat abstractor comprises most heat pipes, wherein each heat pipe comprises that an endothermic section, is parallel to the heat unit of this endothermic section and connects the connecting portion of this endothermic section and this radiating part, above-mentioned endothermic section places between above-mentioned base plate and first radiating fin bottom, above-mentioned heat unit through first and second radiating fin to connect first and second radiating fin.