CN101090618B - Fastening device for heat sink - Google Patents
Fastening device for heat sink Download PDFInfo
- Publication number
- CN101090618B CN101090618B CN200610061173A CN200610061173A CN101090618B CN 101090618 B CN101090618 B CN 101090618B CN 200610061173 A CN200610061173 A CN 200610061173A CN 200610061173 A CN200610061173 A CN 200610061173A CN 101090618 B CN101090618 B CN 101090618B
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- China
- Prior art keywords
- radiator
- fastener
- buckling device
- cam part
- operating parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
This invention relates to a locking device of heat sink used in fixing a heat sink on a CB and including: a body, a first locking piece set on one end of the body, a second locking piece set on the other end of the body and an operating piece connected with the first locking piece, in which, said operation piece includes a cam part pivoted with the first locking piece and the rotation of which can drive the cam part to lean against a bearing side of one end of the body to drive the first locking piece to move upward relatively to the body, a spacing structure is formed on the cam to lean against the first locking piece.
Description
Technical field
The present invention relates to a kind of buckling device, be meant that especially a kind of radiator with cooling electronic components is fixed in the buckling device on the circuit board.
Background technology
Produce big calorimetric when general electronic component such as central processing unit operation, and itself and system temperature are raise, too high temperature can make its runnability descend.For this reason, industry is installed radiator usually on electronic component, to discharge a large amount of heats that it is produced.Conduct heat fully for guaranteeing that radiator and electronic component can closely contact, need usually by the auxiliary radiator that fastens of buckling device.
As shown in Figure 7, disclose a kind of fastener of heat sink, it has a body 60, one first fastener 70, one second fastener 80 and an operating parts 90, these body 60 1 ends have a continuing surface 61, offer two parallel notches 611 on it, the other end is bent to form first fastener 70, this second fastener 80 has pair of parallel lamellar body 81, this offers the pivoted hole 811 of a correspondence respectively to lamellar body 81 tops, these operating parts 90 1 ends are provided with the cam part 91 that two parallel plate bodies form, offer on the eccentric position of this cam part 91 one with the corresponding pivot hole 911 of pivoted hole 811 on two lamellar bodies 81.Two lamellar bodies 81 of this second fastener 80 pass two notches 611 of body 60 continuing surfaces 61, and pivot 93 passes pivoted hole 81 on second fastener 80 and the pivot hole 911 on the operating parts 90, thereby second fastener 80 and fixing operation part 90 are articulated.
Above-mentioned fastener in use, first and second fastener 70 and 80 respectively with the fastening structure snapping that is installed on the circuit board, by rotating operation spare 90 cam part 91 is slided on continuing surface 61, thereby upwards promote second fastener 80 and reach body 60 and compress radiator and then make its fixing installation purpose.But this fastener in use, and operating parts 90 makes operating parts 90 revolutions easily because of system vibration, makes the compress fixation of fastener releasing to radiator, and make radiator break away from heat-generating electronic elements.This kind fastener fastens unstable and has bigger potential impact, therefore needs to improve.
Summary of the invention
In view of this, be necessary to provide a kind of button solid buckling device of radiator that keeps steady.
A kind of buckling device of radiator, be used for radiator is fixed on circuit board, comprise that a body, is arranged at one first fastener of body one end, is arranged at one second fastener of the body other end and an operating parts that is connected with this first fastener, described operating parts comprises the cam part that one and first fastener articulates, and the rotation of operating parts can cause that cam part compresses the continuing surface of body one end, move up and drive the relative body of first fastener, be formed with the position limiting structure that can lean with first fastener on the described cam part.
Salient point on the above-mentioned buckling device of radiator operating parts also can effectively prevent operating parts because system vibration and spontaneous resilience makes the buckling device of radiator accidental, thereby improves the stability of this buckling device of radiator.
Description of drawings
Fig. 1 is the three-dimensional exploded view of buckling device of radiator in one embodiment of the invention.
Fig. 2 is the three-dimensional assembly diagram of buckling device of radiator among Fig. 1.
Fig. 3 is the three-dimensional exploded view of buckling device of radiator and related elements among Fig. 1.
Fig. 4 is the three-dimensional assembly diagram of buckling device of radiator and related elements among Fig. 1.
Fig. 5 is that buckling device of radiator is in the not end view of buckling state among Fig. 4.
Fig. 6 is the end view that buckling device of radiator is in buckling state among Fig. 4.
Fig. 7 is the three-dimensional exploded view of a buckling device of radiator of the prior art.
Embodiment
Seeing also Fig. 3 and show buckling device of radiator 10 in one embodiment of the invention, mainly is to be used for making radiator 20 to be attached to admittedly on heat-generating electronic elements 42 surfaces of circuit board 40.This radiator 20 is made with heat conductivility good metal materials such as aluminium or copper and is comprised that one contacts the base plate 22 of the heat that is produced when absorbing electronic component 42 operations and is parallel to some radiating fins 24 on the base plate 22 with electronic component 42 end faces.Offer an elongated slot 26 in the middle of these radiating fins 24, be used for ccontaining buckling device of radiator.This electronic component 42 is arranged on the circuit board 40, and its outer periphery is equipped with a holder 30.This holder 30 is rectangle frameworks, and its relative both sides respectively are provided with at least one projection 32, these projections 32 respectively with buckling device of radiator 10 snappings, and radiator 20 is fixed on the circuit board 40.This buckling device of radiator 10 comprises a body 100, one first fastener 200, one second fastener 300 and an operating parts 400.
As shown in Figures 1 and 2, the roughly V-shaped bending of this body 100, its medium position forms a pressure section 102, and offers a groove 104 in the middle of it.These body 100 1 ends are provided with a horizontal continuing surface 140, offer the strip slotted eye 142 that a pair of shape size is consistent, be parallel to each other on this continuing surface 140, and this is used for wearing for first fastener 200 to the length direction of slotted eye 142 parallel bodies 100.These body 100 other ends form the buckle structure 120 that combines with second fastener, 300 buckles, and this buckle structure 120 is for forming the elastic clasp 122 of a hangnail shape respectively at body 100 two-phase partition end of bodies.
This first fastener 200 has two mutual parallel connection lamellar bodies 220, and these connect lamellar body 220 tops and offer corresponding pivoted hole 222 respectively.It is corresponding with slotted eye 142 that these connect lamellar body 220, passes slotted eye 142 certainly down and make two pivoted holes 222 be positioned at continuing surface 140 tops.This connects lamellar body 220 bottoms and connects a button pin 260.This button pin 260 is provided with at least one first button hole 262 with projection 32 snappings of holder 30 1 sides, and the bottom margin of this button pin 260 outwards is bent to form skewed chamfering.
This second fastener 300 is strip metal lamellar bodies, and it offers a strip slotted eye 320 near the apical position level, and this slotted eye 320 is used for cooperating with the buckle structure 120 of body 100 1 ends, thereby second fastener 300 is movably attached on the body 100.This second fastener 300 is provided with one second button hole 340 near bottom position, and this second button hole 340 is corresponding with first button hole 262 of first fastener 200, with projection 32 snappings of holder 30 opposite sides.The bottom margin of this second fastener 300 outwards is bent to form skewed chamfering.
This operating parts 400 is to be formed by a sheet metal integrated punching, two cam part 460 that it comprises a pulling part 320 and is connected in pulling part 420 1 ends.This two cam part 460 is formed, and is offered pivot hole 462 on its eccentric position by two parallel mutually, shape lamellar body of the same size.The edge of each cam part 460 is provided with a releasing section 464 and a canned paragraph 466.On this canned paragraph 466 each point to the distance in pivot hole 462 greater than each point on the releasing section 464 to the distance in pivot hole 462.This two cam part 460 is provided with the position limiting structure that prevents operating parts 400 unintentional rotation, in the present embodiment this position limiting structure in the canned paragraph 466 of cam part 460 and pivot hole 462 stamp out the two spacing salient points 468 of being separated by relatively from inside to outside respectively.
As shown in Figure 2, when above-mentioned buckling device of radiator 10 was in assembled state, two connection lamellar bodies 220 of this first fastener 200 passed the slotted eye 142 on the continuing surface 140 from bottom to top, and this two pivoted hole 222 that connects on lamellar body 220 is positioned at continuing surface 140 tops.These operating parts 400 parallel bodies 100 ground are positioned over it above continuing surface 140, and being clipped in two of first fastener 200 connects between the lamellar body 220, one pivot 500 passes pivot hole 462 on the operating parts 400 and is connected pivoted hole 222 on the lamellar body 220 with two, thereby the operating parts 300 and second fastener 200 are articulated.Above-mentioned second fastener 300 and body 100 detachable settings are inserted in the clasp 122 of body 100 1 ends and the phase buckle connects by the slotted eye on it 320.When rotating operation spare 400, the releasing section 464 of cam part 460 and canned paragraph 466 optionally contact with continuing surface 140 on the body 100.When the releasing section 464 at cam part 460 edges contacts with continuing surface 140, this buckling device of radiator 10 is in not buckling state, last two salient points 468 of its operating parts 400 are in the side that two of first fastener 200 connects lamellar body 220, when cam part 460 contacts with contact-making surface 140 when turning to canned paragraph 466 with contact-making surface 140 position contacting from releasing section 464, this buckling device of radiator 10 is in buckling state, in this two salient point 468 one from first fastener 200 2 connect lamellar bodies 220 1 break away relative opposite side and and near a lateral edges of this connection lamellar body 220, this moment first fastener 200 connection lamellar body 220 between 460 liang of salient points 468 of cam part, thereby stop operating parts 400 owing to system vibration turns round.
Be appreciated that the also vertically length setting of body 100 of two-phase separate slot hole 142 of body 100 1 end continuing surfaces 140, this moment, operating parts 400 vertical bodies 100 were arranged on the continuing surface 140, were the lateral rotation structure.
See also Fig. 3 to Fig. 6, when radiator 20 is installed, can earlier the buckling device of radiator 10 that assembles be positioned on the elongated slot 26 of radiator 20 from top to bottom, also can the buckling device of radiator 10 of first fastener 200 will only be assembled earlier, from radiator 20 1 sides pass elongated slot 26 and stride and establish wherein, buckle second fastener 300 from the opposite side of radiator 20 again, all be to pull operating parts 400 then, make releasing section 464 correspondences of cam part 460 be positioned at continuing surface 140 position contacting with body 120, make first again, two fasteners 200,300 first button hole 262 and second button hole 340 overlap respectively on the projection 32 of connection fixed seat 30 both sides correspondences.Then, pull operating parts 400, make buckling device of radiator 10 be in buckling state, the canned paragraph 466 of its cam part 460 turn to body 100 on continuing surface 140 corresponding position contacting.Because cam part 460 is an eccentric structure, its canned paragraph 466 is big to the distance of rotation pivot 500 than releasing section 464 to the distance of rotation pivot 500, so in the rotation process of operating parts 400, move up driving first fastener 200 that is articulated with cam part 460, thereby first button hole 262 that makes this first fastener 200 is the projection 32 of snapping holder 30 1 sides securely, compress simultaneously the continuing surface 140 of body 100 downwards, make pressure section 102 on the body 100 compress the bottom of radiator 20 elongated slots 26 downwards, thereby make radiator 20 closely be attached on the electronic component 42 admittedly, this moment, two salient points 468 on the operating parts 400 just in time connected the lateral margin of lamellar bodies 220 both sides against two of first fastener 200, prevented operating parts 400 because system vibration and spontaneous resilience makes buckling device of radiator 10 accidental.
During dismounting, need oppositely to pull earlier operating parts 400, make buckling device of radiator 10 be in not buckling state, its cam part 460 turns to the continuing surface 140 corresponding position contacting of its releasing section 464 and body 100, driving first fastener 200 simultaneously moves down, first button hole 262 of first fastener 200 is separated, so that pull down radiator 20 with the projection 32 of holder 30.
Claims (10)
1. buckling device of radiator, be used for radiator is fixed on circuit board, comprise a body, one is arranged at one first fastener of body one end, be arranged at one second fastener of the body other end and an operating parts that is connected with this first fastener, described operating parts comprises the cam part that one and first fastener articulates, body one end is formed with the continuing surface of accepting cam part, and the rotation of operating parts can cause that cam part is pressed on eccentric rotary on the continuing surface, move up and drive the relative body of first fastener, it is characterized in that: be formed with the position limiting structure that can lean with first fastener on the described cam part.
2. buckling device of radiator as claimed in claim 1 is characterized in that: described position limiting structure is to be separated by to be arranged at two salient points in the cam part outside.
3. buckling device of radiator as claimed in claim 1 or 2, it is characterized in that: described first fastener be provided with described position limiting structure against two be connected lamellar body, this two connects lamellar body from passing described continuing surface and cam part pivot joint on mutually down, and is positioned at the both sides of described cam part.
4. buckling device of radiator as claimed in claim 3, it is characterized in that: described cam part comprises two parallel lamellar bodies, the edge of described lamellar body is formed with a canned paragraph and a releasing section, described salient point was connected the lamellar body both sides described two when this canned paragraph contacted with continuing surface, and this releasing section contacts described salient point with continuing surface and is connected lamellar body one side described two.
5. buckling device of radiator as claimed in claim 4 is characterized in that: offer the pivot hole that articulates with first fastener on the described cam part, and the distance of described canned paragraph is arrived greater than the distance to releasing section in this pivot hole.
6. buckling device of radiator as claimed in claim 5 is characterized in that: described operating parts also comprises the portion of stirring, and the canned paragraph and the releasing section that are used for driving cam portion optionally contact with the continuing surface of body one end.
7. buckling device of radiator as claimed in claim 6 is characterized in that: the parallel described body length direction of described operating parts is arranged on the described continuing surface.
8. buckling device of radiator as claimed in claim 6 is characterized in that: the vertical described body length direction of described operating parts is arranged on the described continuing surface, and the described portion of stirring can rotate to body one side.
9. buckling device of radiator as claimed in claim 1 is characterized in that: the movable connection of an end of described second fastener and body.
10. buckling device of radiator as claimed in claim 9 is characterized in that: an end of described body is provided with the clasp of the hangnail shape that cooperates with second fastener, offers the button hole that cooperates with described clasp on described second fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610061173A CN101090618B (en) | 2006-06-16 | 2006-06-16 | Fastening device for heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610061173A CN101090618B (en) | 2006-06-16 | 2006-06-16 | Fastening device for heat sink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101090618A CN101090618A (en) | 2007-12-19 |
| CN101090618B true CN101090618B (en) | 2010-05-26 |
Family
ID=38943698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610061173A Expired - Fee Related CN101090618B (en) | 2006-06-16 | 2006-06-16 | Fastening device for heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101090618B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685331B (en) * | 2008-09-25 | 2012-09-19 | 富准精密工业(深圳)有限公司 | Fastener and radiating device using same |
| CN104780737A (en) * | 2014-01-15 | 2015-07-15 | 鸿富锦精密工业（深圳）有限公司 | Radiator fixing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771960A (en) * | 1997-07-09 | 1998-06-30 | Lin; Bob | CPU heat sink fastener |
| CN1316875A (en) * | 2000-04-06 | 2001-10-10 | 富准精密工业(深圳)有限公司 | Fastener of heat sink |
| US6731504B1 (en) * | 2003-01-17 | 2004-05-04 | A-Sheng Liu | Heat sink fastener |
| CN2679847Y (en) * | 2004-02-19 | 2005-02-16 | 鈤新科技股份有限公司 | Buckling means for radiator |
| US7061764B2 (en) * | 2003-03-28 | 2006-06-13 | Hon Hai Precision Ind. Co., Ltd. | Heat sink clip with rotating CAM |
-
2006
- 2006-06-16 CN CN200610061173A patent/CN101090618B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771960A (en) * | 1997-07-09 | 1998-06-30 | Lin; Bob | CPU heat sink fastener |
| CN1316875A (en) * | 2000-04-06 | 2001-10-10 | 富准精密工业(深圳)有限公司 | Fastener of heat sink |
| US6731504B1 (en) * | 2003-01-17 | 2004-05-04 | A-Sheng Liu | Heat sink fastener |
| US7061764B2 (en) * | 2003-03-28 | 2006-06-13 | Hon Hai Precision Ind. Co., Ltd. | Heat sink clip with rotating CAM |
| CN2679847Y (en) * | 2004-02-19 | 2005-02-16 | 鈤新科技股份有限公司 | Buckling means for radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101090618A (en) | 2007-12-19 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20110616 |