CN101730450B

CN101730450B - Heat radiation device

Info

Publication number: CN101730450B
Application number: CN2008103051813A
Authority: CN
Inventors: 孔程; 杨红成
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2008-10-24
Filing date: 2008-10-24
Publication date: 2013-06-05
Anticipated expiration: 2028-10-24
Also published as: US20100101758A1; CN101730450A

Abstract

The invention relates to a heat radiation device which is used for the heat radiation of electronic elements. The heat radiation device comprises a radiator, a fan arranged on the radiator and a fastener for fixing the fan, wherein the fastener comprises at least one buckling part, an least one elastic element sleeved on the buckling part and at least one fixing part of the buckling part, the at least one fixing part combines the at least one buckling part and the at least one elastic element at one side on the top of the radiator, the buckling part can extend and retract in the direction toward the fan under the elastic force of the elastic element on the radiator, the other side on the top of the radiator extends to form a bearing rib, and the bearing rib and the buckling part buckle the fan on the radiator. Compared with the prior art, in virtue of the bearing rib formed on the radiator and the buckling part of the fastener as well as the elastic element, the fan can be conveniently installed on the radiator of the heat radiation device or can be quickly removed from the radiator of the heat radiation device without using tools, thereby facilitating the maintenance of the heat radiation device.

Description

Heat abstractor

Technical field

The present invention relates to a kind of heat abstractor, refer to especially a kind of heat abstractor with fan fastener.

Background technology

The electronic devices and components that are installed on circuit board can produce a large amount of heats when operation, if these heats can not be left effectively, will directly cause temperature sharply to rise, and badly influence service behaviour and the life-span of electronic devices and components.For this reason, a heat abstractor being installed usually on electronic devices and components dispels the heat.

Traditional heat abstractor comprises that a radiator and is fixed by screws in the fan on radiator.This heat abstractor can adhere to one deck dust in spreader surface after using a period of time.Due to the heat conductivility extreme difference of dust, can the heat dispersion of heat abstractor be impacted, also can impact fan life simultaneously.So fan need to be disassembled from radiator, the dust of spreader surface is removed, but because fan is to adopt the mode of lock screw to be connected with radiator, the dismounting of fan and assembling need to just can be completed by instrument, and be very inconvenient.

Summary of the invention

In view of this, be necessary to provide a kind of heat abstractor of dismantling and assembling be convenient to.

a kind of heat abstractor, be used for electronic component is dispelled the heat, it comprises a radiator, one is placed in the fan on radiator and fixes a fastener of this fan, this fastener comprises at least one clamping part, be nested with at least one flexible member on this at least one clamping part and connect at least one fixed part of this at least one clamping part, this at least one fixed part should at least one clamping part and this at least one flexible member be combined in radiator top one side, this clamping part acts at this flexible member can be flexible towards fan under the elastic force of radiator, the opposite side at this radiator top extends a fin, this fin and clamping part are buckled in fan on radiator jointly.

Compared with prior art, heat abstractor of the present invention is by being formed at fin on radiator and the clamping part of fastener, and fan can be arranged on easily on radiator or with fan dismounting quickly from the radiator in conjunction with flexible member, need not by instrument, conveniently heat abstractor is safeguarded, kept the higher heat dispersion of heat abstractor.

Description of drawings

Fig. 1 is the three-dimensional assembly diagram of heat abstractor of the present invention.

Fig. 2 is the three-dimensional exploded view of heat abstractor in Fig. 1.

Fig. 3 to Fig. 5 is the assembling process schematic diagram of heat abstractor in Fig. 1.

Embodiment

As shown in Figure 1, heat abstractor of the present invention comprises that a radiator 10, is placed in the fan 20 on radiator 10 and is combined on radiator 10 in order to fan 20 is fixed on the fastener 30 on radiator 10.

Please also refer to Fig. 2, described radiator 10 is integrally formed by the good material of the heat conductivilitys such as copper, aluminium, and it comprises a heat conducting base 12 and the some fins 14 that extend to form vertically upward from these heat conducting base 12 end faces.Described fin 14 is parallel to each other and is rectangular compartment of terrain and is arranged on heat conducting base 12 end faces.14 of fins along the fore-and-aft direction adjacent columns of radiator 10 form some the first gas channels 16, along the adjacent row's of left direction of radiator 10 14 of fins form some the second gas channel 18, the second gas channels 18 and the first gas channel 16 perpendicular.Low certain altitude is cut at fin 14 tops of radiator 10 central authorities, thereby forms an installed surface that flushes 19 in the center of top of radiator 10, and the fin 14 around installed surface 19 encloses and forms a storage tank (figure is mark).Two row's fin 14 tops of the front side of radiator 10, near offering two through holes 140 in end place, left and right, thereby this through hole 140 is positioned at and is connected with described storage tank on installed surface 19, it uses the corresponding assembly for fastener 30 to pass.Row fin 14 tops that radiator 10 rear sides are adjacent with installed surface 19, each flatly protrudes out the two wedge shape fins 142 relative with through hole 140 towards installed surface 19 near end place, left and right.Fin 142 is positioned on installed surface 19, and separated by a distance with installed surface 19.

Described fan 20 is fixed on the installed surface 19 of radiator 10 and partly is contained in described storage tank.Described fan 20 is aerofoil fan, and it comprises that the fan frame 22 and of a hollow is placed in the impeller 24 of fan frame 22 central authorities.Described fan frame 22 comprises a fan frame body 222 and stretches out and form two mutual parallel upper and lower flanges 224,226 from fanning frame body 222 tops and bottom respectively.Installed surface 19 on the thickness of lower flange 226 and radiator 10 and the distance between fin 142 about equally, thereby lower flange 226 just is fixed on installed surface 19 by fin 142.

Described fastener 30 is used for fan 20 is locked at radiator 10, and it comprises that two clamping parts 32, two are nested with the spring 34 on clamping part 32 and a fixed part 36 that combines with two clamping parts 32.Described each clamping part 32 comprises a square deduction cap 322, from the deduction cap 322 1 cylindric bodies of rod 324 of side surfaces central authorities extended one and the wedge shape fixture block 326 that protrudes out from deduction cap 322 opposite side tops.This body of rod 324 is offered an annular slot 3240 near its free powder end.This fixed part 36 is integrally formed by a plate body, protrudes laterally through bending in the middle of fixed part 36 to form leader 364, and fixed part 36 two ends respectively cut a part and form a pair of grab 362, in order to the body of rod 324 on draw-in groove 3240 be connected mutually.

When assembling this heat abstractor, at first two springs 34 are set in respectively on the body of rod 324 of two fastener 30 clamping parts 32, then the body of rod 324 free ends that make two fastener 30 clamping parts 32 pass respectively two through holes 140 on fin 14 outside 19 1 side direction of the installed surface on radiator 10, until spring 34 ends and fin 14 inner surfaces are inconsistent and compressed a little, this moment, the draw-in groove 3240 on the body of rod 324 just exposed outside the fin 14 of the front side of radiator 10.Thereby the grab 362 that then makes fixed part 36 two ends respectively with bipole body 324 on draw-in groove 3240 be connected mutually fixed part 36 holdings on clamping part 32.At this moment, because spring 34 is in the state of compression slightly, thereby fixed part 36 is executed an inside pulling force, fixed part 36 inner surfaces are close on radiator 10 leading flanks.Please refer to Fig. 3 to Fig. 5, on installed surface 19, the lower flange 226 of fan 20 these sides is compressed by fin 142 with a side of fan 20.226 of the lower flanges of fan 20 opposite sides ride against on the fixture block 326 of clamping part 32.Then be pulled outwardly fixed part 36(direction as shown by the arrows in Figure 4), fixed part 36 drives clamping part 32 and outwards moves, and makes spring 34 be in complete compressive state.At this moment the fixture block 326 of clamping part 32 disengages with the lower flange 226 of fan 20 opposite sides, thereby makes fan 20 can be placed on installed surface 19 fully and partly be contained in storage tank.Unclamp at last fixed part 36, spring 34 recovers deformation, thereby push card buckle portion 32 moves inward, and the fixture block 326 of clamping part 32 is fastened on the lower flange 226 of this side of fan 20, and since then, fan 20 has been fixed on the installed surface 19 of radiator 10.The step of dismounting fan 20 is opposite with the process of assembling, does not repeat them here.

Compared with prior art, heat abstractor of the present invention is by being formed at fin 142 on radiator 10 and the fixture block 326 on clamping part 32, and fan 20 can be arranged on easily on radiator 10 or with fan 20 dismounting quickly from the radiator 10 in conjunction with spring 34, need not by instrument, conveniently heat abstractor is safeguarded, kept the higher heat dispersion of heat abstractor.

Understandably, concrete structure, quantity and the clamping part 32 of the fixed part 36 in fastener 30 of the present invention, the quantity of spring 34 also can be made proper transformation.As fixed part 36 being arranged to two, match with two clamping parts 32 respectively; Also clamping part 32, spring 34 and fixed part 36 can be arranged to one or more, all can reach the purpose of fan attachment 20.Spring 34 in fastener 30 can be by replacements such as other flexible members such as shell fragments.In addition, the quantity of the fin 142 on fin 14 and position thereof be visual different demand and changing also, can be one or more as fin 142, when fin 142 is one, its width and should being adjusted accordingly with position that the lower flange 226 of fan 20 fastens is so that fin 142 can more firmly fasten fan 20.

Claims

1. heat abstractor, be used for electronic component is dispelled the heat, it comprises a radiator, one is placed in the fan on radiator and fixes a fastener of this fan, it is characterized in that: this fastener comprises at least one clamping part, be nested with at least one flexible member on this at least one clamping part and connect at least one fixed part of this at least one clamping part, this at least one fixed part should at least one clamping part and this at least one flexible member be combined in radiator top one side, this clamping part acts at this flexible member can be flexible towards fan under the elastic force of radiator, the opposite side at this radiator top extends a fin, this fin and clamping part are buckled in fan on radiator jointly, described at least one clamping part comprises that a body of rod reaches by the extended fixture block of the body of rod one end, the fin top that the other end of the described body of rod passes radiator one side combines with fixed part, described at least one flexible member is set on this body of rod and between the fin and this fixture block of described radiator one side, described fan has a flange, described fin is extended at the fin top of radiator opposite side, the fixture block of described at least one clamping part and the fin on fin are buckled in respectively on this flange of fan.

2. heat abstractor as claimed in claim 1, it is characterized in that: described radiator comprises a heat conducting base and some fins that extends upward formation from the heat conducting base end face.

3. heat abstractor as claimed in claim 2 is characterized in that: described radiator fins top formation one installed surface between fin and this at least one clamping part, this fan is placed on this installed surface.

4. heat abstractor as claimed in claim 1, it is characterized in that: described at least one clamping part and at least one flexible member are two, and described at least one fixed part is one, and described fixed part connects the free end of the body of rod of described two clamping parts.

5. heat abstractor as claimed in claim 1, it is characterized in that: the free end of the described body of rod is offered a draw-in groove, and the end of described at least one fixed part forms a grab, the draw-in groove phase clamping on this grab and the body of rod.

6. heat abstractor as claimed in claim 5, is characterized in that: also form the leader on described at least one fixed part.

7. heat abstractor as claimed in claim 1, it is characterized in that: the fixture block of described at least one clamping part and the structure of the fin on fin are wedge shape.

8. heat abstractor as claimed in claim 2, it is characterized in that: described fin is rectangular compartment of terrain and is arranged on the heat conducting base end face, form some the first gas channels along between the fin of the front and back side direction adjacent columns of radiator, along forming some the second gas channels between the relative adjacent row's of horizontal side direction of radiator fin, the second gas channel is vertical with the first gas channel.