CN100499982C

CN100499982C - Fastener for heat sink and heat radiating combination

Info

Publication number: CN100499982C
Application number: CNB200610061430XA
Authority: CN
Inventors: 赖振田; 周志勇; 胡健
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: 2006-06-30
Filing date: 2006-06-30
Publication date: 2009-06-10
Anticipated expiration: 2026-06-30
Also published as: CN101098610A

Abstract

The invention relates to a combination of heat radiator clamper and a heat radiator, wherein the heat radiator clamper via clamped with a fixing module fixes the heat radiator, comprising a first clamp, a second clamp, and an operator connecting the first and second clamps. The first clamp is provided with a flexible arm which one end is downward bent to form a clamp pin, while another end is provided with a clamp sheet. The operator is provided with a body which one end is provided with a first and a second clamping portion, while the first clamping portion is axially pined with the clamping sheet of the first clamp, and the second clamping portion is axially pined with the second clamp. The second clamp is provided with two sheets for clamping and containing the operator, while one end of each plate is axially connected with the operator and another end is provided with a clamp portion connected with the two plates. Therefore, when operates the operator, the invention can make the operator span over dead point to make the heat radiator lock by self, thereby pressing and fixing the heat radiator.

Description

Fastener of heat sink and heat abstractor combination

Technical field

The present invention relates to a kind of buckling device, particularly about a kind of buckling device of fixed heat sink.

Background technology

Nowadays, in computer industry, for the heat that electronic components such as little process chip are produced effectively distributes, the method that adopts is the excessive hot surface that a radiator closely is attached at electronic component usually, to assist electronic element radiating, guarantee that electronic component moves under suitable temperature.

For radiator and electronic component are closely contacted to give full play to the heat dispersion of radiator, the more employing buckling device of industry is fixed radiator, up to the present, existing all kinds of buckling devices are developed design and come into operation, but take a broad view of the effect of existing all kinds of buckling devices, still have the following weak point that waits to overcome:

(1) structure is complicated, causes cost higher;

(2) can't satisfy easy to operate, labour-saving requirement;

(3) need occupy bigger space, bigger fastening power can not be provided in limited space and keep stable.

Summary of the invention

In view of this, be necessary to provide a kind of buckling device of radiator of simple operation, also provide a kind of described buckling device heat abstractor that radiator is fixing that utilizes in the lump simultaneously in this at this.

This fastener of heat sink comprises: one first buckling piece, one second buckling piece and one connects the actuator of first buckling piece and second buckling piece, described first buckling piece has an elastic arm, this elastic arm one end is bent to form a button pin downwards, the other end has cramp, described actuator has a body, this body one end has first and second connecting portion, wherein the cramp of first connecting portion and first buckling piece articulates, second connecting portion and second buckling piece articulate, described second buckling piece has two plate bodys that insert and put and accommodate described actuator, described two plate bodys, one end and actuator articulate, the other end is formed with the buckling parts that connects described two plate bodys, described two plate body inboards are formed with two salient points relatively, described actuator and two salient point clips.

The combination of this heat abstractor comprises: a fixing module; One radiator, it places on the described fixedly module; One fastener of heat sink, it is cross-placed on, and module is interlockingly connected on this radiator and with being somebody's turn to do fixedly, described fastener of heat sink comprises: one first buckling piece, one second buckling piece and connect the actuator of first buckling piece and second buckling piece, this first buckling piece has an elastic arm, the elastic arm of this first buckling piece is pressed on this radiator, this elastic arm one end is bent to form a button pin downwards, and these button climbers are connected to this fixedly on the module, and the other end has cramp; This actuator has a body, this body one end is connected with first and second connecting portion, wherein the cramp of first connecting portion and first buckling piece articulates, second connecting portion and second buckling piece articulate, described second buckling piece has two plate bodys that insert and put and accommodate described actuator, described two plate bodys, one end and actuator articulate, the other end is formed with the buckling parts that connects described two plate bodys, module is interlockingly connected this buckling parts with being somebody's turn to do fixedly, thereby it is this radiator compacting is fixing, described two plate body inboards are formed with two salient points relatively, described actuator and two salient point clips.

Compared with prior art, above-mentioned fastener only needs the rotating operation bar radiator can be fixed, and required strength is little, has laborsaving and advantage simple operation.

Description of drawings

Be further described in conjunction with the embodiments with reference to the accompanying drawings:

Fig. 1 is the wherein three-dimensional exploded view of an embodiment of heat abstractor combination of the present invention.

Fig. 2 is the three-dimensional exploded view of fastener of heat sink of the present invention in the heat abstractor combination shown in Figure 1.

Fig. 3 is the three-dimensional combination figure before heat abstractor combination shown in Figure 1 fastens.

Fig. 4 is the end view before heat abstractor combination shown in Figure 1 fastens.

Fig. 5 is the three-dimensional combination figure after heat abstractor combination shown in Figure 1 fastens.

Fig. 6 is the end view after heat abstractor combination shown in Figure 1 fastens.

Embodiment

Figure 1 shows that a wherein embodiment of heat abstractor combination of the present invention, the combination of this heat abstractor comprises a fastener of heat sink 100, fixedly a module 60 and a radiator 70, wherein, this fastener of heat sink 100 be used for should be fixedly module 60 cooperate, this radiator 70 being fixed on fixedly on the module 60, this fixedly module 60 be arranged at around the electronic component 82 on the circuit board 80.

Fixedly module 60 setting that roughly is square, four ends of its two opposing sidewalls 61 respectively form a projection 610, four screws (figure is mark) and pass each projection 610 respectively, and then fixedly module 60 secures on the circuit board 80.The center of top position of this two sidewall 61 is formed with two

fixture blocks

62,64, and the bottom that each

fixture block

62,64 extends two sidewalls, 61 appropriate sections has the cambered surface 640 of an indent, makes fastener 100 be difficult for getting loose to fasten with fastener 100.

This radiator 70 comprises a square cylinder 74 that is positioned at its center, and this cylinder 74 can be solid construction, also or form the hollow heat pipe construction, and in order to conducting heat fast with the phase change of working fluid (such as water); The terminal edge in four corners of this cylinder 74 stretches out and is provided with heat conduction branching portion 740, and some radiating fins 76 are extended by cylinder 74 and heat conduction branching portion 740.Cylinder 74 middle parts of this radiator 70 are provided with two side by side storage tanks 72, this storage tank 72 have certain degree of depth but and non-through cylinder 74, its size can change according to the size of fastener 100, so that striding across this two storage tank 72, fastener 100 matches with fixing module 60, wherein these two storage tanks, 72 pairing radiating fins 76 are clipped certain altitude, make its height than other radiating fin 76 low, interfere fastener 100 to prevent it, its height of clipping equals the degree of depth of storage tank 72.

Please refer to Fig. 2, this fastener of heat sink 100 comprises: one first buckling piece 10, one second buckling piece 30 and connect the actuator 20 of first, second

buckling piece

10,30.

First buckling piece 10 has two elastic arms 11, this two elastic arm 11 is parallel to each other and is provided with at interval to form a rectangle receiving space 15, this receiving space 15 is in order to be cross-placed on first buckling piece 10 in two storage tanks 72 of this radiator 70, and two free ends of two elastic arms 11 connect by two connecting portions 12,13.The connecting portion 13 downward one of one end of this first buckling piece 10 extend to form a button pin 14, and this button pin 14 is provided with a button hole 142, with the fixture block 62 of fixing module 60 buckle mutually.Extension downwards is provided with two cramps 16 to the connecting portion 12 of first buckling piece, 10 other ends from its both sides, and this cramp 16 is one-body molded and in the same plane with elastic arm 11, and this cramp 16 is provided with two relative pivoted holes 162, to be connected with actuator 20.

Second buckling piece 30 comprises two plate bodys that are symmetrically distributed 32 and the vertical buckling parts 31 that connects these two plate bodys, 32 inboard bottoms, this buckling parts 31 has a lock solid structure, this lock solid structure is one to be arranged at the catching groove 34 at buckling parts 31 top edges middle parts in the present embodiment, and this catching groove 34 is used for and fixing fixture block 64 buckles of module 60.Each plate body 32 mediad arches upward outward with the elastic portion 33 that forms a camber, and the central authorities of this elastic portion 33 are provided with a slit 330 to increase the elasticity of elastic portion 33, and the upper end place of this plate body 32 forms pivoted hole 360.This two plate body 32 is formed with a clamping structure relatively near an end inboard of buckling parts 31, this clamping structure is two salient points 320 on two plate bodys 32 in the present embodiment, when fastener of heat sink 100 is in buckling state, described two plate bodys 32 insert and put and accommodate actuator 20, and described salient point 320 is fixed in actuator 20 clips between two plate bodys 32 of second buckling piece 30.

Actuator 20 comprises a body 220 and extends two mutual parallel side plates 230 of setting from body 220 longitudinally both sides vertically downward, one free end of body 220 upwards is bent to form leader 240, side plate 230 extends beyond another free end of body 220 to the direction away from handle 240, to form a junction 24 in order to be connected with first buckling piece 10 and second buckling piece 30, this connecting portion 24 comprises first connecting portion 25 that is connected with first buckling piece 10 and second connecting portion 26 that is connected with second buckling piece 30, wherein, distance between first connecting portion 25 is greater than the distance between the cramp 16 of first buckling piece 10, and the distance between second connecting portion 26 is greater than the distance between first connecting portion 25.Be formed with pivoted hole 250,260 respectively on this first connecting portion 25 and second connecting portion 26, the pivoted hole 360 with the pivoted hole 162 of first buckling piece 10, second buckling piece 30 is corresponding respectively.

Please refer to Fig. 1 and Fig. 2, when assembling fastener 100, earlier the connecting portion 25 of actuator 20 is placed cramp 16 outsides of first buckling piece 10, make the pivoted hole 250 of first connecting portion 25 of actuator 20 aim at the pivoted hole 162 of first buckling piece 10, one pin 40 passes pivoted hole 250 and pivoted hole 162, to articulate the actuator 20 and first buckling piece 10; Again the top free end of the plate body 32 of second buckling piece 30 is placed 26 outsides, articulated section of actuator 20, make the accurate pivoted hole 260 of second connecting portion 26 of 360 pairs second buckling pieces 30 of pivoted hole of second buckling piece 30, pass pivoted hole 360 and pivoted hole 260 by two rivets 50, thereby realize the pivot joint of second buckling piece 30 and actuator 20, so, finish the assembling of first buckling piece 10, second buckling piece 30 and actuator 20.

Please also refer to as shown in Figures 3 and 4, the elastic arm 11 of first buckling piece 10 of the fastener 100 after the combination is cross-placed on the storage tank 72 of radiator 70, and the catching groove 34 that will detain the button hole 142 of pin 14 and second buckling piece 30 snaps onto on the

fixture block

62,64 that is positioned at fixing module 60 opposite sides loosely.

When the body 220 of pushing actuator 20 downwards and handle 240 made actuator 20 around pin 40 rotations, rivet 50 (i.e. the tie point of second buckling piece 30 and actuator 20) also rotated around pin 40 simultaneously, and drove second buckling piece 30 simultaneously and move upward; Along with being rotated further actuator 20, this rivet 50 rise to pin 40 directly over, because the catching groove 34 of second buckling piece 30 is buckled in fixedly on the module 60, the elastic portion 33 of this second buckling piece 30 is subjected to stretching strain takes place, and generation acts on the downward power of rivet 50 along elastic portion 33; This downward power produces a downward power by

actuator

20 and 40 pairs first buckling pieces of pin, 10 cramps 16, forces the elastic arm 11 of first buckling piece 10 elastic deformation to take place and compress its radiator of suppressing 70.

When this actuator 20 turns to when crossing " dead-centre position " (be pin 40 with the active force of 50 pairs of actuators 20 of rivet in collinear position), as Fig. 5 and shown in Figure 6, this actuator 20 is housed between the plate body 32 and is resisted against buckling parts 31, actuator 20 no longer includes rotating trend, promptly reach buckling state, fastening between the catching groove 34 of the

fixture block

62,64 by fixing module 60 and the button hole of first buckling piece 10, second buckling piece 30 is realized stably fastening, and first buckling piece 10 that strain takes place, radiator 60 is relatively stably fastened; In addition, in the process that the actuator 20 and second fastener 30 fasten, salient point 320 on second fastener, 30 2 plate bodys 32 is subjected to the extruding of the side plate 230 and the body 220 of actuator 20, make this two plate body 32 produce certain distortion, after fastening fully, this two plate body 32 restores to the original state to insert and put and to accommodate actuator 20, and this moment, the body 220 of actuator 20 was fixed by 320 clips of salient point of second buckling piece 30, prevents to meet with external force and disturbs caused fastener resilience such as (such as vibration) to get loose.

So far, present embodiment is described in detail in conjunction with the accompanying drawings, and described buckling device of radiator is simple in structure, and then manufacturing cost can effectively reduce; Fixedly the time, only rotating actuator, easy to operate, laborsaving to radiator; This buckling device is positioned at two sides of radiator, it is less to take installing space when mounted, and existing radiator need not be vacateed installing space especially, does not influence the area of dissipation setting, this buckling device also can keep suitable fastening power simultaneously, and has good anticreep effect.

Claims

1. fastener of heat sink, comprise one first buckling piece, one second buckling piece and one connects the actuator of first buckling piece and second buckling piece, described first buckling piece has an elastic arm, this elastic arm one end is bent to form a button pin downwards, the other end has cramp, described actuator has a body, this body one end has first and second connecting portion, wherein the cramp of first connecting portion and first buckling piece articulates, second connecting portion and second buckling piece articulate, it is characterized in that: described second buckling piece has two plate bodys that insert and put and accommodate described actuator, described two plate bodys, one end and actuator articulate, the other end is formed with the buckling parts that connects described two plate bodys, and described two plate body inboards are formed with two salient points relatively, described actuator and two salient point clips.

2. fastener of heat sink according to claim 1 is characterized in that: described two salient points are positioned at the end of two plate bodys near buckling parts.

3. fastener of heat sink according to claim 2 is characterized in that: side plate, described body and two salient point clips that described actuator has a body and extends from body two sides.

4. fastener of heat sink according to claim 1 is characterized in that: described buckling parts has a lock solid structure, and this lock solid structure is a catching groove.

5. fastener of heat sink according to claim 1 is characterized in that: described two plate body mediads arch upward outward to form a camber elastic portion.

6. fastener of heat sink according to claim 5 is characterized in that: described elastic portion middle part forms a slit.

7. heat abstractor combination comprises a fixing module; One radiator, it places on the described fixedly module; One fastener of heat sink, it is cross-placed on, and module is interlockingly connected on this radiator and with being somebody's turn to do fixedly, described fastener of heat sink comprises: one first buckling piece, one second buckling piece and connect the actuator of first buckling piece and second buckling piece, this first buckling piece has an elastic arm, the elastic arm of this first buckling piece is pressed on this radiator, this elastic arm one end is bent to form a button pin downwards, and these button climbers are connected to this fixedly on the module, and the other end has cramp; This actuator has a body, this body one end is connected with first and second connecting portion, wherein the cramp of first connecting portion and first buckling piece articulates, second connecting portion and second buckling piece articulate, it is characterized in that: described second buckling piece has two plate bodys that insert and put and accommodate described actuator, described two plate bodys, one end and actuator articulate, the other end is formed with the buckling parts that connects described two plate bodys, module is interlockingly connected this buckling parts with being somebody's turn to do fixedly, thereby it is this radiator compacting is fixing, described two plate body inboards are formed with two salient points relatively, described actuator and two salient point clips.

8. heat abstractor combination according to claim 7, it is characterized in that: described radiator comprises a cylinder that is positioned at the center, to the external radiation setting, this cylinder middle part is provided with two side by side storage tanks to accommodate described elastic arm to the radiating fin of this radiator by this cylinder.

9. heat abstractor combination according to claim 7 is characterized in that: described two salient points are positioned at the end of two plate bodys near buckling parts.

10. heat abstractor according to claim 7 combination, it is characterized in that: described buckling parts has a lock solid structure, and this lock solid structure is one to be arranged on the catching groove on the described substrate, itself and the fixing side fixture block fastening of module.

11. heat abstractor combination according to claim 7, it is characterized in that: described two plate body mediads arch upward outward to form a camber elastic portion.

12. heat abstractor combination according to claim 11 is characterized in that: described elastic portion middle part forms a camber slit.