CN201001246Y

CN201001246Y - Fastener structure for heat radiator

Info

Publication number: CN201001246Y
Application number: CNU2007200339730U
Authority: CN
Inventors: 赖澄辉; 陈嘉宏
Original assignee: SUZHOU YONGTENG ELECTRONIC PRODUCT CO Ltd
Current assignee: Dongguan Yongteng Electronic Product Co., Ltd.
Priority date: 2007-02-01
Filing date: 2007-02-01
Publication date: 2008-01-02
Anticipated expiration: 2017-02-01

Abstract

The utility model relates to a buckle structure which makes a heat sink buckled on the heat generating source of an electronic product and used for the heat sink, which belongs to a basic electrical element field. The utility model relates to a heat sink main body, a buckle is combined with the heat sink main body, wherein a punching hole is arranged on the heat sink main body, the buckle is arranged at the bottom of the heat sink main body, the buckle comprises a rod body, a gasket and a tabling body, the tabling body is combined with the gasket through a clipping slot structure, the rod body penetrates the punching hole and then is connected with the gasket, the heat sink main body and the buckle are connected as a whole, and a positioning part is arranged on the rod body. Through making the rod body in the buckle and the tabling body relatively combined in the embedded and clipping way, the utility model can realize without using the tool and the heat sink is assembled on a heat emission source. After the assembly is accomplished, the heat sink is uneasy to loosen and deviate. Moreover the heat sink can laminate with the heat emission source with consistent level, the integral application effect is ideal, thus being convenient for rapid assembly of the industry assembly line and being more beneficial to the combination of the heat emission source and the heat sink, improving the heat emission condition.

Description

Buckle structure for radiating fin

Technical field

The utility model relates to a kind of buckle structure, particularly a kind of fin is fastened on buckle structure for radiating fin on the electronic product pyrotoxin, belongs to the essential electronic element field.

Background technology

Along with the fast development of scientific and technological information, personal computer, electronic memo and mobile computer are because calculation function is strong, speed is fast, and in industry-by-industry, and the arriving of cybertimes more causes the universalness of computer by widespread.Wherein, the chip in the computer can produce heat energy when running, and the fast more heat energy that produces of arithmetic speed is high more.For avoiding Yin Gaore to burn the useful life that chip shortens chip, on each chip pyrotoxin, be equipped with fin, the thermal energy conduction that makes the chip generation is to fin, and the blow cold air that fan is produced is dispelled the heat to the fin surface gap again.In use, fin must be fixed on the pyrotoxin and could absorb the heat energy that pyrotoxin produces.Technology commonly used at present is to utilize screw that fin is fixed on the pyrotoxin circuit board on every side, need to use hand tools, and the strength of screw is difficult to control, the too tight or too loose radiating effect that all can influence fin.Simultaneously, the degree of depth of locking of each screw has depth difference in the time of fixedly, causes fin to form the uneven situation in the left and right sides.Therefore, have in the industry with metallic rod body bending, utilize the elasticity mode that compresses that fin is pressed on mode on the pyrotoxin as fastener.But this flexible type fastener just is easy to become flexible, come off as long as be subjected to external force collision a little, and metallic rod body is to penetrate in the plural fin of fin, when assembling, easily push fin, cause near the fin torsional deformation of fastener, influence the radiating effect and the useful life of fin.

(Taiwan patent that Fig. 8 discloses a kind of " the fin buckling structure of central processing unit ", notification number: No. 368136), it includes: a fin A, end in fin A forms several projection A1, the end of projection A1 forms diameter greater than projection, the cephalic par of A1 diameter is A2, can be for wearing a circuit board A3 with central processing unit on each projection A1.This central processing unit and fin A are in contact with one another; One lamellar body B that can assemble mutually and push-pull piece C, be respectively equipped with cramp B1, B2 in the upper and lower position of lamellar body B, form hole B11, B21 and slotted hole B12, B22 respectively in the both sides of each cramp B1, B2, protrude out formation one fin B13, B23 outwardly adjacent to slotted hole B12, B22 place, can be between between one group of relative fin B13, B23 for push-pull piece C is set, on push-pull piece C, also be formed with relative hole C1, when lamellar body B and push-pull piece C are fastened on projection A1 when going up, but the fastening of mat hole C1 and each projection A1 and become one.This buckling structure utilizes the mutual group of button of lamellar body B and push-pull piece C, reaches the purpose of fastening, still has problems when reality is used, as:

(1) fin A is when lamellar body B will be assembled in the circuit board A3 outside, hole B11, B21 and slotted hole B12, the B22 of lamellar body B upper and lower position cramp B1, B2 one side, embed the cephalic par A2 of projection A1 earlier, and slotted hole B12, B22 insert for push-pull piece C by fin B13, B23, after making the hole C1 of push-pull piece C penetrate projection A1, passing push-pull piece C again detains and holds projection A1, assembling process is quite loaded down with trivial details, inconvenient, no matter and when assembling hole B11, B21 or slotted hole B12, B22 all easily break away from projection A1 at any time so that assembling process is consuming time takes a lot of work.

(2) slotted hole B12, the B22 of lamellar body B upper and lower position cramp B1, B2 one side, insert for push-pull piece C with fin B13, B23, side uses hole B11, B21 button to hold projection A1 in addition, so will cause cramp B1, B2 both sides button to hold the power inequality, influence the clamping tightness between circuit board A3 and fin A, and produce slot and loosening, make the heat sinking function of fin A relatively poor.

(3) push-pull piece C utilizes central long strip shape hole C1 button to hold projection A1, when operating, main frame produces vibrations, can cause the buckle of push-pull piece C disengaging after a period of time equally to projection A1, cause lamellar body B can't be held in fin A side, fin A also can't be attached on the central processing unit of circuit board A3.

In addition, Fig. 9 is the patent of bulletin M No. 244507 " structural improvements of radiator ", its body D has first end D1 and the second end D2, defines an edge D11 away from this body D in first end D1 one side, and is recessed into and formation fulcrum breach D12 to first end D1; Define an edge D21 adjacent in the second end D2 one side, and be recessed into and formation buckle breach D22, and body D is provided with application of force hole D4 to the second end D2 with body D.Simultaneously, the relative distance of application of force hole D4 and fulcrum breach D12 is moment arm; Body D places down space E 1 inside of heating panel E, be fastened in the circular groove E21 place of columnar member E2 earlier with the fulcrum breach D12 of first end D1 edge D11, after crossing fin E3 with body D turn again, buckle breach D22 by the second end D2 edge D21 snaps within the circular groove E21 of another columnar member E2.Also there are problems in this technical scheme when reality is used, as:

(1) fastener body D wants holding in the space E 1 of following fin E, must avoid down the fin E3 of heating panel E during rotation, difficulty and inconvenience when causing assembling, and push fin E3 easily, and be out of shape and cause fin E3, influence radiating effect.

(2) the fulcrum breach D12 of body D, buckle breach D22 all become open, producing vibrations when then main frame operates makes fulcrum breach D12, buckle breach D22 break away from the circular groove E21 of columnar member E2 easily, cause down heating panel E and last heating panel E4 can't clamp circuit board E5, influence heat sinking function.

Need utilize instrument to embed the application of force hole D4 when (3) body D is provided with application of force hole D4 assembling, dismounting in the second end D2 place and could do turn, cause the inconvenience in the operating performance when tearing group job open body D.

Summary of the invention

The purpose of this utility model is to overcome the above problem that prior art exists, and a kind of buckle structure for radiating fin is provided.

The purpose of this utility model realizes by following technical solution:

Buckle structure for radiating fin, relate to heat sink body, fastener combines with heat sink body, wherein: heat sink body is provided with perforation, and fastener is arranged on the bottom of heat sink body, and fastener comprises the body of rod, liner and chimera, chimera combines with liner by the draw-in groove structure, the body of rod passes through the perforation back and connects liner, heat sink body and fastener are connected into an integral body, and the body of rod is provided with limiting component.

The purpose of this utility model also can further realize by following technical measures:

Above-mentioned buckle structure for radiating fin, wherein, described limiting component is positioned at the upper end of the body of rod, and the limiting component diameter is greater than the aperture of perforation.

Further, above-mentioned buckle structure for radiating fin, wherein, described limiting component is a pad, has at least a slice to be positioned on the heat sink body, the pad diameter is greater than the aperture of fin perforation.

Further, above-mentioned buckle structure for radiating fin, wherein, described liner is provided with axis hole, and the body of rod enters axis hole after passing the fin perforation.

Further, above-mentioned buckle structure for radiating fin, wherein, described liner is provided with storage tank, and derives respectively in the storage tank both sides backstop is arranged.

Further, above-mentioned buckle structure for radiating fin, wherein, described chimera both sides are respectively equipped with the elastic arm of bending.

Further, above-mentioned buckle structure for radiating fin, wherein, described bending angle is 0 °～40 °.

Again further, above-mentioned buckle structure for radiating fin, wherein, described elastic arm centre position is provided with caulking groove.

Advantage of the present utility model is: by the body of rod in the fastener and chimera are carried out relative buckle combination, can realize exempting from instrument and fast groups of fins being contained on the source of heat release, and be difficult for loosening, disengaging after its assembling is finished.Simultaneously, fin can present the consistent applying of level with pyrotoxin, and whole implementation is satisfactory for result, is convenient to the quick assembling of industrial flow-line, and can help combining of source of heat release and fin more, and heat dissipating state is improved.

The purpose of this utility model, advantage and characteristics will illustrate by the non-limitative illustration of following preferential embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.

Description of drawings

Fig. 1: the utility model overall schematic;

Fig. 2: the utility model schematic bottom view;

Fig. 3: the utility model decomposing schematic representation;

Fig. 4: buckle structure schematic diagram;

Fig. 5: the structural representation before the utility model uses;

Fig. 6: the structural representation after the utility model uses;

Fig. 7: the utility model side cutaway view;

The schematic diagram of the fin buckling structure of Fig. 8: background technology---central processing unit;

The structure improved schematic diagram of Fig. 9: background technology---radiator.

In the middle of Fig. 1～Fig. 7:

Numbering	Refer to	Numbering	Refer to
Numbering	Refer to	Numbering	Refer to	1	Heat sink body	12	Radiating fin
2	Fastener	21	The body of rod	1	Heat sink body	12	Radiating fin
2	Fastener	21	The body of rod	211	Limiting component	2111	The bar head
22	Liner	221	Axis hole	211	Limiting component	2111	The bar head
22	Liner	221	Axis hole	222	Storage tank	2221	Backstop
223	Cushion block	23	Chimera	222	Storage tank	2221	Backstop
223	Cushion block	23	Chimera	231	Elastic arm	2311	Caulking groove

Numbering	Refer to	Numbering	Refer to
Numbering	Refer to	Numbering	Refer to	3	Circuit board	31	Pyrotoxin

In the middle of Fig. 8:

Numbering	Refer to	Numbering	Refer to
Numbering	Refer to	Numbering	Refer to	A	Fin	A1	Projection
A2	Cephalic par	A3	Circuit board	A	Fin	A1	Projection
A2	Cephalic par	A3	Circuit board	B	Lamellar body	B1、B2	Cramp
B11、 B21、	The hole	B12、B22	Slotted hole	B	Lamellar body	B1、B2	Cramp
B11、 B21、	The hole	B12、B22	Slotted hole	B13、 B23	Fin	C	Pulling-on piece
C1	The hole			B13、 B23	Fin	C	Pulling-on piece

In the middle of Fig. 9:

Numbering	Refer to	Numbering	Refer to
Numbering	Refer to	Numbering	Refer to	D	Body	D1	First end
D11	The edge	D12	The fulcrum breach	D	Body	D1	First end
D11	The edge	D12	The fulcrum breach	D2	The second end	D21	The edge
D22	The buckle breach	D3	Stretch section is poor	D2	The second end	D21	The edge
D22	The buckle breach	D3	Stretch section is poor	D4	Application of force hole	E	Following heating panel
E1	The space	E2	Columnar member	D4	Application of force hole	E	Following heating panel
E1	The space	E2	Columnar member	E21	Circular groove	E3	Fin
E4	Last fin	E5	Circuit board	E21	Circular groove	E3	Fin

Embodiment

As Fig. 1～buckle structure for radiating fin shown in Figure 7, relate to heat sink body 1, fastener 2 combines with heat sink body 1, wherein: heat sink body 1 is provided with perforation 11, fastener 2 is arranged on the bottom of heat sink body 1, fastener 2 comprises the body of rod 21, liner 22 and chimera 23, and chimera 23 combines with liner 22 by the draw-in groove structure, and the body of rod 21 passes through perforation 11 backs and connects liner 22, heat sink body 1 and fastener 2 are connected into an integral body, and the body of rod 21 is provided with limiting component 221.Described limiting component 221 is positioned at the upper end of the body of rod 21, and limiting component 221 diameters are greater than the aperture of perforation 11.Perhaps, described limiting component 221 is a pad, has at least a slice to be positioned on the heat sink body 1, and the pad diameter is greater than the aperture of fin 1 perforation 11.Described liner 22 is provided with axis hole, and the body of rod 21 enters axis hole after passing fin perforation 11.Simultaneously, on described liner 22, be provided with storage tank 222, and derive respectively in storage tank 222 both sides backstop 2221 is arranged.When assembling, storage tank 222 is used for taking in chimera 23, can avoid chimera 23 to break away from storage tank 222.Described chimera 23 both sides are respectively equipped with the elastic arm 231 of bending, and bending angle is 0 °～40 °, is provided with caulking groove 2311 in elastic arm 231 centre positions.That is to say that elastic arm 231 when the holding section of the body of rod 21, has enough strain spaces by caulking groove 2311 buckles, be able to heat sink body 1 strained at and fasten, unlikely loosening or come off.Caulking groove 2311 buckles are in the holding section of the body of rod 21 belows.

In the actual assembled of buckle structure for radiating fin, the body of rod 21 is penetrated perforation set on the heat sink body 1 11, specifically, the limiting component 211 of each body of rod 21 top is positioned at and places in the perforation 11, and each body of rod 21 stretches through to heat sink body 1 below, pass respectively, the axis hole 211 of liner 22, again by the holding section of each body of rod 21 bottom, by caulking groove 2311 with the buckle blocking.Make 231 liang of outsides of elastic arm, support on storage tank 222, reach position-limiting action chimera 23.Then by fastener 2 in conjunction with heat sink body 1 bottom, make heat sink body 1 be fixed in the pyrotoxin place.Certainly, for the radiating effect of realizing ideal, state heat sink body 1 and be provided with plurality of radiating fins 12, fan, perhaps being equipped with heat pipe or heat sink body in heat sink body 1 is the fin of various types such as water-cooled fin.

From figure, can know and find out heat sink body 1 in use, be attached to bottom it on pyrotoxin 31 on circuit board 3, then utilize the elastic force of the elastic arm 231 of 23 liang of lateral bucklings of chimera to spur each body of rod 21, make the body of rod 21 produce downward pulling force, and be tight against the surface that is held in circuit board 3 by the cushion block 223 of liner 22, so heat energy and quick row that heat sink body 1 absorption pyrotoxin 31 gives out are diffusing, reach the purpose of assisting pyrotoxin 31 heat radiations.Simultaneously, because heat sink body 1 utilizes fastener 2 to be held on the pyrotoxin 31 of circuit board 3, the vibrations that produced during circuit board 3 runnings, the unlikely loosening or disengaging that causes fastener 2.

This shows,, the body of rod in the fastener and chimera are carried out relative buckle combination, can realize exempting from instrument and fast groups of fins being contained on the source of heat release, and be difficult for loosening, disengaging after its assembling is finished by adopting this buckle structure for radiating fin.Fin can present the consistent applying of level with pyrotoxin simultaneously.Whole implementation is satisfactory for result, is convenient to the quick assembling of industrial flow-line, and can help combining of source of heat release and fin more, and heat dissipating state is improved, and implementation result is good.

Certainly, more than only be concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other execution mode.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.

Claims

1, buckle structure for radiating fin, relate to heat sink body, fastener combines with heat sink body, it is characterized in that: heat sink body is provided with perforation, and fastener is arranged on the bottom of heat sink body, and fastener comprises the body of rod, liner and chimera, chimera combines with liner by the draw-in groove structure, the body of rod passes through the perforation back and connects liner, heat sink body and fastener are connected into an integral body, and the body of rod is provided with limiting component.

2, buckle structure for radiating fin according to claim 1 is characterized in that: described limiting component is positioned at the upper end of the body of rod, and the limiting component diameter is greater than the aperture of perforation.

3, buckle structure for radiating fin according to claim 1 is characterized in that: described limiting component is a pad, has at least a slice to be positioned on the heat sink body, and the pad diameter is greater than the aperture of fin perforation.

4, buckle structure for radiating fin according to claim 1 is characterized in that: described liner is provided with axis hole, and the body of rod enters axis hole after passing the fin perforation.

5, buckle structure for radiating fin according to claim 1 is characterized in that: described liner is provided with storage tank, and derives respectively in the storage tank both sides backstop is arranged.

6, buckle structure for radiating fin according to claim 1 is characterized in that: described chimera both sides are respectively equipped with the elastic arm of bending.

7, buckle structure for radiating fin according to claim 6 is characterized in that: described bending angle is 0 °～40 °.

8, buckle structure for radiating fin according to claim 6 is characterized in that: described elastic arm centre position is provided with caulking groove.