CN101500396B

CN101500396B - Fastener and heat radiating device assembly using the same

Info

Publication number: CN101500396B
Application number: CN 200810066029
Authority: CN
Inventors: 王义参; 鲁翠军; 王新建
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: 2008-02-01
Filing date: 2008-02-01
Publication date: 2012-05-23
Anticipated expiration: 2028-02-01
Also published as: CN101500396A

Abstract

The invention relates to a radiator combination, comprising a radiator and a fastener. The radiator comprises a soleplate and a plurality of radiating fins arranged on the soleplate; the fastener comprises a butting part butting against the soleplate; the two ends of the butting part respectively bend and extend to form bending parts; the tail end of each bending part further extends to form a fastening arm; an extension part is connected between the bending part of the fastener and each fastening arm; where the extension part is parallel to the butting part, the fastening arm is vertical to the extension part; and the two opposite sides of the bending part butting against the soleplate prevent the fastener from horizontally moving relatively to the radiator. The fastener in the radiator combination is provided with bending parts butting against the two sides of the soleplate of the radiator so as to prevent the fastener from horizontally moving along the two sides of the soleplate of the radiator, further to keep the stable fastening force of the fastener and guarantee the radiation effect of the radiator.

Description

Fastener and use the heat abstractor combination of this fastener

Technical field

The present invention relates to a kind of fastener and use the heat abstractor of this fastener to make up, particularly a kind of heat abstractor combination that fastens respond well fastener and use this fastener.

Background technology

Electronic component heat transmission heat abstractor combination commonly used mainly comprises radiator and fastener; After this radiator is installed in the electronic component end face; Utilize fastener and associated component or structure (for example to supply the side projection of the connector that central processing unit plugs again; Colluding button and being tight against radiator the hole that perhaps is provided with on the circuit board), and radiator is closely adhered on the electronic component.Wherein, this fastener is to be formed by elastic metallic bar bending.In this design; The pressure section that this metallic rod body has a level reaches from these pressure section two ends roughly the oppositely extended arm of vertical respectively bending; This pressure section is pressed on the top of radiator; The end of each arm extends a fastener portion, through fastener portion and associated component or the interstructural button that colludes, radiator is fitted tightly on the end face of electronic component.

Though this kind manner can be fixed radiator through the compressing of pressure section of fastener in vertical direction preferably, behind the fastening, fastener and radiator can not relatively move in vertical direction; But, on the horizontal direction owing to there is not specific bed knife, under the influence of external environment; Fastener can be done moving on the horizontal direction with respect to radiator; Thereby influence the chucking power of fastener, and then have influence on the tightness that radiator contacts with electronic component, the heat radiation generation negative consequence of electronic component.

Summary of the invention

In view of this, be necessary to provide a kind of heat abstractor combination and fastener thereof with good fastening effect.

A kind of heat abstractor combination comprises a radiator and a fastener, and this radiator comprises a base plate and is arranged on the some radiating fins on this base plate; This fastener comprises a pressure section that is resisted against on the base plate; The pressure section of said fastener is shape linearly, and these pressure section two ends bend respectively and extend to form a kink, and each kink end extends to form a button arm again; Also be connected with an extension between the kink of said fastener and each the button arm; Said extension is parallel with pressure section, and said button arm and extension are orthogonal, prevents that fastener from doing moving on the horizontal direction with respect to radiator thereby this kink is resisted against the two opposite sides of base plate.

Compared with prior art; The fastener that uses in the heat abstractor combination of the present invention is provided with the kink of the base plate both sides that are resisted against radiator; Can prevent moving of fastener horizontal direction, thereby can keep the stable fastening power of fastener, guarantee the radiating effect of radiator along the base plate of radiator both sides.

With reference to the accompanying drawings, in conjunction with specific embodiment the present invention is done further description.

Description of drawings

Fig. 1 is the three-dimensional combination figure of a preferred embodiment of heat abstractor combination of the present invention.

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

Fig. 3 is the end view of heat abstractor combination among Fig. 1.

Embodiment

Fig. 1 and Fig. 2 disclose the heat abstractor combination in one embodiment of the present invention; It is used to distribute the heat of electronic component (figure does not show) release that is installed on the circuit board (figure does not show), and this heat abstractor combination comprises a radiator 10 and is used for radiator 10 is fixed to a fastener 20 of fitting with electronic component on the circuit board.

Radiator 10 is by one-body molded processing such as high thermal conductivity material such as copper, aluminium or its alloys.Radiator 10 comprises that a roughly rectangular base plate 12 reaches the some radiating fins 14 that extend vertically upward from base plate 12.These radiating fin 14 spaces and be parallel to a pair of short side of base plate 12 form the runner (indicating) that air feed stream passes through between the per two adjacent radiating fins 14.Form the groove 16 of a vertical bar shaped between the centre two adjacent radiating fin 14a of base plate 12, the 14b.Groove 16 is used for ccontaining fastener 20.The base portion thickness of two adjacent radiating

fin

14a, 14b is big than other radiating fins 14; Its purpose is to dwindle the distance between this two radiating fin 14a, the 14b; Thereby form the corresponding groove 16 of width with fastener 20; Moreover, also strengthen the intensity of this two radiating

fin

14a, 14b simultaneously, thereby can bear the fastening power that is produced when fastener 20 fastens radiator 10.

Fastener 20 is the line style fastener; Form the two button arms 24 that it comprises a pressure section 21, two kinks 22 that extend from these pressure section 21 two ends, continues two extensions 26 that extend from two kinks, 22 outer ends and be positioned at these two extensions, 26 outer ends by elastic metal wire one bending.The end of two button arms 24 forms a clasp 25 respectively.

Pressure section 21 is shape linearly, and its length just is the width (please join Fig. 3) of the base plate 12 of radiator 10.This pressure section 21 can just be contained in the groove 16 that forms on the base plate 12 of radiator 10.Two kinks 22 are bent downwards to extend by the two ends of pressure section 21 respectively and form.And this two kink 22 is along pressure section 21 and is symmetrical set.The end of two kinks 22 horizontal-extending again forms two extensions 26, and this two extension 26 is parallel to each other with pressure section 21, and this two extension 26 also is along pressure section 21 and is symmetrical set.Extension 26 has certain length, thus for button arm 24 provides certain operating space, when avoiding detaining arm 24 operation and radiator 10 interfere.Vertical range between extension 26 and the pressure section 21, also be kink 22 vertical height and radiator 10 base plate 12 thickness about equally.This two kink 22 just places the both sides of the base plate 12 of radiator 10; And be resisted against the both sides of the base plate 12 of radiator 10; Thereby prevent fastener 20 horizontal direction move left and right in like Fig. 3; The stable fastening that can keep fastener 20, thus guarantee that radiator 10 remains tight the contact with electronic component, finally reach the radiating effect that guarantees radiator 10.

Two button arms 24 respectively by the end of extension 26 upwards bending extend and form.Two button arms 24 are all vertical with extension 26, but there is certain angle towards difference in two button arms 24 between this two buttons arm 24, and promptly two button arms 24 and two extensions 26 are not to be in the same plane yet.The end of two button arms 24 is formed with a clasp 25 respectively, and this clasp 25 is to be extended by the 24 terminal upwards bendings of this button arm to form, its be used for this circuit board on clasp (figure does not show) fastening and radiator 10 is fixed to this circuit board.

Utilizing fastener 20 with radiator 10 fixedly the time, with the pressure section 21 of fastener 20 pass two radiating fin 14a, the 14b of radiator 10 and the groove 16 of the base plate 12 that places in, the clasp that respectively clasp 25 is fastened on the circuit board again gets final product.Because pressure section 21 shape linearly, make fastener 20 can be groove 16 in relatively radiator 10 do to rotate on a large scale, thereby make things convenient for the clasp on clasp 25 and the circuit board to be interlocked.The fastener 20 that fastens after assembling just is contained in the groove 16 of radiator 10 because of its pressure section 21, can prevent that fastener 20 edges are as moving forward and backward on the horizontal direction among Fig. 3.And, can prevent that fastener 20 edges are as making move left and right in the horizontal direction among Fig. 3 because fastener 20 is provided with the kink 22 that is resisted against radiator 10 both sides.By on can know that this fastener 20 can provide stable fastening power, thereby guarantee that radiator 10 closely contacts with electronic component all the time, make radiator 10 bring into play its normal radiating effects.Be appreciated that ground; The vertical height of the kink 22 of fastener 20 might not be consistent with the thickness of the base plate 12 of radiator 10; Needing only its vertical height can be inconsistent with the base plate 12 of radiator 10, reaches to prevent that fastener 20 effect that moves in the horizontal direction from getting final product.

Claims

1. a heat abstractor combination comprises a radiator and a fastener, and this radiator comprises a base plate and is arranged on the some radiating fins on this base plate; It is characterized in that: this fastener comprises a pressure section that is resisted against on the base plate; The pressure section of said fastener is shape linearly, and these pressure section two ends bend respectively and extend to form a kink, and each kink end extends to form a button arm again; Also be connected with an extension between the kink of said fastener and each the button arm; Said extension is parallel with pressure section, and said button arm and extension are orthogonal, prevents that fastener from doing moving on the horizontal direction with respect to radiator thereby this kink is resisted against the two opposite sides of base plate.

2. heat abstractor combination as claimed in claim 1, it is characterized in that: the thickness of the base plate of said radiator is consistent with the vertical height of the kink of fastener.

3. heat abstractor combination as claimed in claim 1 is characterized in that: the end of each button arm of said fastener also forms a clasp.

4. heat abstractor combination as claimed in claim 1; It is characterized in that: the setting parallel to each other of the radiating fin of said radiator; The base plate central authorities of said radiator are in and form a groove between the two adjacent radiating fins; The pressure section of said fastener passes this two adjacent radiating fin and places in this groove of base plate, and the length of said pressure section is consistent with the width of base plate.

5. fastener that is used for radiator; It is characterized in that: this fastener comprises a pressure section; The pressure section of said fastener is shape linearly, and these pressure section two ends bend respectively and extend to form a kink, and each kink end extends to form a button arm again; Also be connected with an extension between the kink of said fastener and each the button arm; Said extension is parallel with pressure section, and said button arm and extension are orthogonal, prevents that this fastener from moving relative to radiator thereby this kink is used to be resisted against the both sides of radiator.

6. fastener as claimed in claim 5 is characterized in that: the end of said each button arm forms a button an ancient unit of weight.