CN2694356Y

CN2694356Y - Heat sink

Info

Publication number: CN2694356Y
Application number: CN 200420007226
Authority: CN
Inventors: 张世和
Original assignee: Giga Byte Technology Co Ltd
Current assignee: Giga Byte Technology Co Ltd
Priority date: 2004-03-17
Filing date: 2004-03-17
Publication date: 2005-04-20
Anticipated expiration: 2014-03-17

Abstract

The utility model relates to a heat sink, and a fan is fixed on the heat sink. The heat sink comprises a heat emitter which is provided with a fastening structure and a cover which is provided with an air inlet. The cover is combined with the heat emitter by the fastening structure, and the fan is clamped between the cover and the heat emitter. The heat sink can be arranged on a circuit board, and the circuit board is provided with a heat generation source. The heat sink also comprises at least two spring fasteners, and the spring fasteners are arranged on the heat emitter. The two spring fasteners are inserted in the corresponding fastening holes in the circuit board, and the heat emitter is elastically pressed on the heat overflow surface of the heat generation source by the two spring fasteners. The utility model can improve the disadvantages of the existing heat sink: the heat sink uses screws to fix the fan; metal debris is easy to be generated in the processing; the processing of locking screws is cockamamie; the human resource is wasted, and the existing heat sink is complicated to be disassembled and assembled.

Description

A kind of heat abstractor

Technical field

The utility model relates to a kind of heat abstractor, particularly relate on a kind of excessive hot surface that places pyrotoxins such as chip, CPU (central processing unit), the heat radiation of assistance pyrotoxin, and can be easy to the dismounting fan, preventing has the broken generation of cutting of metal because of the action of lock screw, and saves the heat abstractor of assembling human resources.

Background technology

Along with computer industry develops rapidly; the execution speed of chip, CPU (central processing unit) pyrotoxins such as (CPU) is more and more fast; relatively the thermal value of pyrotoxin is also more and more high; for the high temperature that pyrotoxin produced is discharged in the external world; make pyrotoxin can the permission temperature under normal operation, can be attached on the excessive hot surface (top surface) of pyrotoxin having the larger area heating radiator usually, and a fan is set on this heating radiator; form a heat abstractor, in order to assist the pyrotoxin heat radiation.

See also Fig. 1, generally speaking, existing heat abstractor mainly includes a heating radiator 10 and a fan 20, this heating radiator 10 is made with thermal conductivity good metal materials such as aluminium or copper, heating radiator 10 is provided with a heat-radiating substrate 11, on this heat-radiating substrate 11, be provided with a plurality of radiating fins 12 again, thereby form this heating radiator 10.

The heat-radiating substrate 11 of above-mentioned heating radiator 10 is used for placing on the excessive hot surface of pyrotoxins 30 such as chip, CPU (central processing unit), and the work high temperature that makes pyrotoxin 30 be produced when work can transfer to heat-radiating substrate 11 and each radiating fin 12 by heat exchange pattern.

In addition, fan 20 is arranged at the top or the side locations of radiating fin 12, introduces cooling air by fan 20, and blows to radiating fin 12, thereby the work high temperature that will conduct on the radiating fin 12 is discharged in the external world, to reduce the work high temperature that pyrotoxin was produced.

The fan 20 of existing heat abstractor all is a tubeaxial fan; these fan 20 top big city utilize screw to lock a lid (figure slightly); cause fan blade damage with the protection user because of touching fan with finger or other article accidentally, the device that has or even do not have lid and allow fan 20 expose (as Fig. 1).And the mode of existing heat abstractor fan attachment 20 is locked on the heating radiator 10 for utilizing screw 21.

Therefore, there is following shortcoming in above-mentioned existing heat abstractor:

1, is easy in process, produce that metal is broken to be cut in the mode of screw fan attachment, in the time of on being installed on pyrotoxin, causes short circuit because of broken cutting easily.

2, the process of lock screw is loaded down with trivial details, the waste of manpower resource.

3, dismounting complexity.

As from the foregoing, above-mentioned existing heat abstractor obviously exists a lot of inconvenience and shortcoming on reality is used, need be improved.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of heat abstractor, can be easy to the dismounting fan, and preventing has the broken generation of cutting of metal because of the action of lock screw, and saves the resource of assembling manpower, reduces cost effectively.

To achieve these goals, the utility model provides a kind of heat abstractor, and a fan is fixedly set on the described heat abstractor, described heat abstractor is arranged on the circuit board, and described circuit board is provided with a pyrotoxin, and its characteristics are, comprise: a heating radiator has clamping structure; One lid is provided with air admission hole, and described lid combines with described heating radiator with clamping structure, and described fan is folded between described lid and the described heating radiator.

Above-mentioned heat abstractor, its characteristics are, described heat abstractor is arranged on the circuit board, described circuit board is provided with a pyrotoxin, described heat abstractor also comprises at least two spring fasteners, it is arranged on the described heating radiator, and described two spring fasteners are planted and are installed on the described circuit board in the corresponding snapping hole, and described two spring fastener elasticity are suppressed described heating radiator on the excessive hot surface of described pyrotoxin.

Above-mentioned heat abstractor, its characteristics be, described two spring fasteners are arranged on the lug that the relative two jiaos of places of described heating radiator extend to form.

Above-mentioned heat abstractor, its characteristics are, described two spring fasteners respectively have a fastener and a spring, described fastener upper end and lower end are formed with a head and a hook portion respectively, described two springs are sheathed on respectively on described two fasteners, described two fasteners are planted and are installed in the corresponding perforation of described heating radiator, and described two springs upper end and lower end are resisted against the head and the described heating radiator of described fastener respectively.

Above-mentioned heat abstractor, its characteristics are that described heating radiator is provided with a heat-radiating substrate, and described heat-radiating substrate is provided with a plurality of radiating fins, and are formed with the air-out hole between described radiating fin.

Above-mentioned heat abstractor, its characteristics are that described clamping structure includes the clamping part of being located at the relative both sides of described heating radiator, and the tenon that is extended to form downwards by the relative both sides of described lid, respectively be provided with a blocked hole on the described tenon, described blocked hole fixes mutually with the clamping part of heating radiator and combines.

Above-mentioned heat abstractor, its characteristics are that described lid is provided with reference column, and described reference column wears the fixed orifice that is fixed on the described fan.

Above-mentioned heat abstractor, its characteristics are that described reference column is arranged with elastic parts, and first end of described elastic parts is resisted against described lid bottom, and second end of described elastic parts then is resisted against on the described fan.

In sum, the utility model can improve existing heat abstractor with the screw fan attachment, be easy in process, produce shortcomings such as broken loaded down with trivial details, the waste of manpower resource of process of cutting, locking screw of metal, and dismounting complexity.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 is the three-dimensional exploded view of existing heat abstractor;

Fig. 2 is the three-dimensional exploded view of the utility model heat abstractor;

Fig. 3 is the three-dimensional combination figure of the utility model heat abstractor;

Fig. 4 is the side view of the utility model heat abstractor;

Fig. 5 is the stereographic map of another angle of the utility model lid;

Fig. 6 is the three-dimensional exploded view of the utility model heat abstractor user mode;

Fig. 7 is the three-dimensional combination figure of the utility model heat abstractor user mode.

Wherein, Reference numeral:

The 10-heating radiator, 11-heat-radiating substrate, 12-radiating fin

The 20-fan, the 21-screw

The 30-pyrotoxin

The 40-heating radiator

The 41-heat-radiating substrate, 42-radiating fin, 43-air-out hole

The 44-clamping part, 45-lug, 46-perforation

The 50-fan

The 51-reel, 52-fan blade, 53-fixed orifice, 54-supporting part

The 60-lid

The 61-air admission hole, 62-tenon, 63-blocked hole, 64-reference column

The 70-elastic parts

80-spring fastener

The 81-fastener, 82-spring, 83-head, 84-hook portion

The 90-circuit board, 91-snapping hole, 95-pyrotoxin

Embodiment

See also Fig. 2, Fig. 3 and Fig. 4, the utility model provides a kind of heat abstractor, include a heating radiator 40, a fan 50, a lid 60, a plurality of elastic parts 70 and at least two spring fasteners 80, wherein heating radiator 40 is made with thermal conductivity good metal materials such as aluminium or copper, heating radiator 40 is provided with a heat-radiating substrate 41, can be in order on the excessive hot surface (top surface) that places pyrotoxin.This heat-radiating substrate 41 is provided with a plurality of radiating fins 42, with the increase area of dissipation, and is formed with air-out hole 43 between radiating fin 42, but air feed stream circulates, discharges.The place respectively is provided with a upper end and forms free-ended clamping part 44 in the middle of heating radiator 40 relative both sides, can be in order to combine with lid 60 buckles.

This fan 50 is arranged at heating radiator 40 tops, this fan 50 has a reel 51 that can be rotated by drives, this reel 51 is provided with a plurality of fan blade 52, when causing this fan 50 to rotate, the air-flow that it produced can touch radiating fin 42, and discharged by air-out hole 43 places, in order to reduce the work high temperature that pyrotoxin produced.50 4 jiaos of places of fan are provided with a fixed orifice 53 respectively, these fixed orifice 53 upper limb internal diameters are formed with a supporting part 54 greatly, these supporting part 54 internal diameters are slightly larger than elastic parts 70 external diameters, and be convenient to this elastic parts 70 lower ends are placed in the supporting part 54, and utilize contact contact supporting part 54 bottoms, elastic parts 70 lower end.

Lid 60 is made by metal material, and it is arranged at fan 50 tops, and this lid 60 also is provided with a plurality of air admission holes 61 (as Fig. 5), and these air admission hole 61 spaced rings are located on the lid 60.Lid 60 can and allow air-flow enter from lid 60 tops in order to protection fan 50.Each extends to form a tenon 62 downwards lid 60 relative both sides, these tenon 62 nearly lower ends respectively are provided with a blocked hole 63, two tenons 62 utilize blocked hole 63 to fix mutually with the clamping part 44 of heating radiator 40 and combine, thereby form the clamping structure of a heating radiator 40, make lid 60 be utilized clamping structure to fix and combine, and fan 50 is folded between lid 60 and the heating radiator 40 with heating radiator 40.

Four jiaos of places, lid 60 bottoms extend to form a reference column 64 respectively downwards, and elastic parts 70 is sheathed on respectively on the reference column 64, and this elastic parts 70 is elastic components such as spring.Reference column 64 is arranged in 50 4 jiaos in fan and locates in the corresponding fixed orifice 53, make lid 60 firmly be positioned fan 50 tops, and make first end (upper end) of elastic parts 70 be resisted against lid 60 bottoms, second end (lower end) of elastic parts 70 then is resisted against the bottom of supporting part 54 of fixed orifice 53 upper limbs of fan 50, so elastic parts 70 can back down lid 60 and fan 50, the tenon 62 that makes lid 60 and the clamping part 44 of heating radiator 40 be buckle more firmly, with this elastic force this lid 60 is fixed on the heating radiator 40.

Two spring fasteners 80 are installed on the lug 45 that place, heating radiator 40 relative two jiaos of bottoms extends to form, and two spring fasteners 80 respectively have a fastener 81 and a spring 82, and fastener 81 upper ends and lower end are formed with a head 83 and a hook portion 84 respectively.Two springs 82 are sheathed on respectively on two fasteners 81, two fastener 81 plants are installed on heating radiator 40 relative two jiaos lugs 45 and preset in the corresponding perforation 46, the hook portion 84 of these two fastener 81 lower ends is reversed acanthoid, can be resisted against lug 45 bottom surfaces, in order to preventing that fastener 81 breaks away from perforation 46, and two spring 82 upper ends and lower end are resisted against head 83 and lug 45 tops respectively.By above-mentioned composition to form heat abstractor of the present utility model.

See also Fig. 6 and Fig. 7, the fastener 81 of two spring fasteners 80 can be planted and be installed in two default on the circuit board 90 corresponding snapping holes 91, and the hook portion 84 that makes fastener 81 lower ends is resisted against circuit board 90 bottoms, in order to prevent that fastener 81 breaks away from snapping hole 91, is fixed on the circuit board 90 this heat abstractor.But 82 elasticity of the spring of two spring fasteners 80 compacting heating radiator 40 is on the excessive hot surface of pyrotoxins such as chip, CPU (central processing unit) 95, in order to fixedly heat abstractor and pyrotoxin 95.This preferred embodiment is installed on circuit board 90 with two spring fasteners 80 with heat abstractor, and make heating radiator 40 be fixed on the excessive hot surface of pyrotoxin 95, but do not limit the spring fastener 80 that uses this kind pattern, can use the fastener of other form that heat abstractor is fixed on the excessive hot surface of pyrotoxin yet.So, can introduce cooling airs by fan 50, and blow to radiating fin 42, thus the work high temperature that will conduct on the radiating fin 42 discharge in the external world, to reduce the work high temperature that pyrotoxin 95 is produced.

Lid 60 of the present utility model utilizes clamping structure to combine with heating radiator 40, and fan 50 is folded between lid 60 and the heating radiator 40, and utilize the compacting of elastic parts 70 elasticity to fix this fan 50, need not use screw fan attachment 50 fully, make that the dismounting of fan 50 is comparatively easily simple, and can prevent has the broken generation of cutting of metal because of the action of lock screw, and saves the resource of assembling manpower, reduces cost effectively.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the utility model claim.

Claims

1, a kind of heat abstractor, a fan is fixedly set on the described heat abstractor, it is characterized in that, comprising:

One heating radiator has clamping structure;

One lid is provided with air admission hole, and described lid combines with described heating radiator with clamping structure, and described fan is folded between described lid and the described heating radiator.

2, heat abstractor according to claim 1, it is characterized in that, described heat abstractor is arranged on the circuit board, described circuit board is provided with a pyrotoxin, described heat abstractor also comprises at least two spring fasteners, it is arranged on the described heating radiator, and described two spring fasteners are planted and are installed on the described circuit board in the corresponding snapping hole, and described two spring fastener elasticity are suppressed described heating radiator on the excessive hot surface of described pyrotoxin.

3, heat abstractor according to claim 2 is characterized in that, described two spring fasteners are arranged on the lug that the relative two jiaos of places of described heating radiator extend to form.

4, heat abstractor according to claim 2, it is characterized in that, described two spring fasteners respectively have a fastener and a spring, described fastener upper end and lower end are formed with a head and a hook portion respectively, described two springs are sheathed on respectively on described two fasteners, described two fasteners are planted and are installed in the corresponding perforation of described heating radiator, and described two springs upper end and lower end are resisted against the head and the described heating radiator of described fastener respectively.

5, heat abstractor according to claim 1 and 2 is characterized in that, described heating radiator is provided with a heat-radiating substrate, and described heat-radiating substrate is provided with a plurality of radiating fins, and is formed with the air-out hole between described radiating fin.

6, heat abstractor according to claim 1 and 2, it is characterized in that, described clamping structure includes the clamping part of being located at the relative both sides of described heating radiator, and the tenon that extends to form downwards by the relative both sides of described lid, respectively be provided with a blocked hole on the described tenon, described blocked hole fixes mutually with the clamping part of heating radiator and combines.

7, heat abstractor according to claim 1 and 2 is characterized in that, described lid is provided with reference column, and described reference column wears the fixed orifice that is fixed on the described fan.

8, heat abstractor according to claim 7 is characterized in that, described reference column is arranged with elastic parts, and first end of described elastic parts is resisted against described lid bottom, and second end of described elastic parts then is resisted against on the described fan.