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CN101841987A - Heat sink and fastener thereof - Google Patents

Heat sink and fastener thereof Download PDF

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Publication number
CN101841987A
CN101841987A CN200910301006A CN200910301006A CN101841987A CN 101841987 A CN101841987 A CN 101841987A CN 200910301006 A CN200910301006 A CN 200910301006A CN 200910301006 A CN200910301006 A CN 200910301006A CN 101841987 A CN101841987 A CN 101841987A
Authority
CN
China
Prior art keywords
fastener
cramp
installing hole
heat pipe
heat
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.)
Pending
Application number
CN200910301006A
Other languages
Chinese (zh)
Inventor
杨健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
Original Assignee
Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hong Jun Precision Industry Co ltd, Fuzhun Precision Industry Shenzhen Co Ltd filed Critical Hong Jun Precision Industry Co ltd
Priority to CN200910301006A priority Critical patent/CN101841987A/en
Priority to US12/504,677 priority patent/US20100236756A1/en
Priority to JP2010066204A priority patent/JP2010226114A/en
Publication of CN101841987A publication Critical patent/CN101841987A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427Cooling by change of state, e.g. use of heat pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/40Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
    • H01L23/4093Snap-on arrangements, e.g. clips
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a heat sink which comprises a heat radiator, a heat pipe, an absorber plate and a fastener. The two ends of the heat pipe are respectively connected with the absorber plate and the heat radiator; the fastener comprises a buckle slab and two fastening parts; the buckle slab comprises a pressing and fixing part in the middle and two end parts positioned at the two sides of the pressing and fixing part; the two fastening parts are respectively arranged at the two end parts of the buckle slab; a mounting hole is arranged at each end part of the buckle slab; a plurality of baffle pieces are arranged at the periphery of the mounting hole towards the center of the mounting hole in a protruding manner; a clamping trough is arranged in the middle of each fastening part; the plurality of baffle pieces are clamped in the clamping troughs to prevent the fastening parts from dropping from the mounting holes; and the pressing and fixing part of the fastener props the end part of the heat pipe onto the absorber plate.

Description

Heat abstractor and fastener thereof
Technical field
The present invention relates to a kind of heat abstractor, refer to a kind of fastener that is used for fixing heat abstractor especially.
Background technology
Along with developing rapidly of computer industry, the heat that heat-generating electronic elements such as little process chip produce is more and more many, for these heats being distributed to ensure the normal operation of electronic component, industry adopts and heat abstractor is set so that heat-generating electronic elements is dispelled the heat on circuit board, and the fixed structure that adopts is a Spring screws usually, offer some through holes such as the position that need fix at heat abstractor, the aperture of through hole greater than the external diameter of the screw thread of Spring screws less than the external diameter of spring, therefore this screw can pass through this through hole, and is locked on the circuit board in the respective threads hole.For the ease of transportation, often after Spring screws and radiator fit together, need on screw, come off to prevent Spring screws by a sheathed clasp.Yet the element that this fixed structure adopts is more, the assembling procedure complexity, material cost and assembly cost have been increased, and may especially when clasp is metal material, after coming off, it can cause the circuit board risk of short-circuits because the improper fastening of clasp that causes of assembling is not tight.
Summary of the invention
In view of this, be necessary to provide a kind of pre-simple and convenient assembly and heat abstractor and fastener thereof with low cost.
A kind of fastener, this fastener comprises a cramp and two fasteners, this cramp comprises that being positioned at one of centre presses solidly portion and be positioned at the both ends that press solidly the portion both sides, this two fastener is mounted to respectively on the both ends of this cramp, each end of this cramp is provided with an installing hole, the periphery of this installing hole protrudes out to the central authorities of this installing hole and is provided with a plurality of retaining pieces, and the middle part of each fastener forms a draw-in groove, and these a plurality of retaining pieces are equipped in this draw-in groove and prevent that this fastener from coming off from installing hole.
A kind of heat abstractor, comprise a radiator, one heat pipe, one absorber plate and a fastener, the two ends of this heat pipe link to each other with radiator with this absorber plate respectively, this fastener comprises a cramp and two fasteners, this cramp comprises that being positioned at one of centre presses solidly portion and be positioned at the both ends that press solidly the portion both sides, this two fastener is mounted to respectively on the both ends of this cramp, each end of this cramp is provided with an installing hole, the periphery of this installing hole protrudes out to the central authorities of this installing hole and is provided with a plurality of retaining pieces, the middle part of each fastener forms a draw-in groove, these a plurality of retaining pieces are equipped in this draw-in groove and prevent that this fastener from coming off from installing hole, and the portion that presses solidly of this fastener is compressed to the end of heat pipe on the absorber plate.
Compared with prior art, the fastener of this heat abstractor is in pre-assembling process, the retaining piece that only need make an end of fastener push this fastener makes the periphery expansion of the end of retaining piece to installing hole, after an end of fastener passes installing hole, when the end of retaining piece is met the draw-in groove of fastener, its suffered extruding force is eliminated, and the terminal resilience reset of card of retaining piece is formed in the draw-in groove of fastener, prevents that fastener breaks away from installing hole.These fastener parts are few, simple in structure, easy to assembly, reduced the material cost and the assembly cost of clasp, saved clasp simultaneously, eliminated clasp and come off and cause the circuit board short risk.
Description of drawings
Fig. 1 is the three-dimensional combination figure of heat abstractor first embodiment of the present invention.
Fig. 2 is the three-dimensional exploded view of heat abstractor shown in Figure 1.
Fig. 3 is the stereogram of fastener shown in Figure 2.
Fig. 4 is the stereogram of the inversion state of fastener shown in Figure 3.
Fig. 5 is the vertical view of cramp shown in Figure 3.
Embodiment
Please consult Fig. 1 and Fig. 2 simultaneously, this heat abstractor comprises a centrifugal fan 10, a radiator 20, a heat pipe 30, an absorber plate 40 and a fastener 50.This centrifugal fan 10 is located at a side of radiator 20, is used for 20 blowings of this radiator.This absorber plate 40 is used for contacting with heat-generating electronic elements (figure does not show), one end of this heat pipe 30 links to each other with this radiator 20, the other end links to each other with this absorber plate 40, and this fastener 50 is used for absorber plate 40 and heat pipe 30 is connected together and absorber plate 40 is locked in the circuit board (figure do not show) at heat-generating electronic elements place.
This centrifugal fan 10 comprises a fan frame 12 and is contained in an impeller 18 of fanning in the frame 12.This fan frame 12 comprises a top cover 14, a bottom 16 and a sidewall 15.This top cover 14 is provided with a circular air inlet 140, and this bottom 16 is parallel relative with top cover 14, and the two ends up and down of this sidewall 15 link to each other with bottom 16 with this top cover 14 respectively.This top cover 14, bottom 16 and sidewall 15 surround and form an accommodation space, this impeller 18 be contained in this accommodation space and with this air inlet 140 over against.The side direction of this fan frame 12 forms the air outlet 150 of a linear.One side of this air outlet 150 is provided with a wind deflector 17, the two ends up and down of this wind deflector 17 also link to each other with bottom 16 with this top cover 14 respectively, but the sidewall 15 of this wind deflector 17 and its place side separately, thereby but form the breach 170 that an air feed stream blows out between this wind deflector 17 and this sidewall 15.The periphery of this bottom 16 convexes with fixed part 162, and these fixed parts 162 are provided with perforation 160 and can supply fixture (figure does not show) to pass through, and centrifugal fan 10 is fixed on the circuit board.
This radiator 20 is piled up by some radiating fins that are parallel to each other 22 and forms, and this radiator 20 is similar to the shape of the air outlet 150 of centrifugal fan 10, and this radiator 20 is located at this air outlet 150 places.
This absorber plate 40 is plate bodys that roughly are square, and it is made by the good material of thermal conductivity, can rapidly heat be passed to end face 42 from its bottom surface 44.
This heat pipe 30 is roughly Z-shaped, forms an evaporation section 32 and a condensation segment 34 respectively along the two ends of this heat pipe 30 of its bearing of trend.
Please consult Fig. 2 to Fig. 5 simultaneously, fastener 50 comprises a cramp 52 and two fasteners 58, and this cramp 52 comprises that one in the middle of being positioned at presses solidly portion 53 and be positioned at the both ends 54 of the portion of pressing solidly 53 both sides.This presses solidly portion 53 and is used to compress heat pipe 30 and absorber plate 40, and this peripheral profile that presses solidly portion 53 roughly is rectangle, and its place, four angles is provided with a rivet hole 530 respectively.This middle body that presses solidly portion 53 upwards arches upward and forms an arch 532, and this arch 532 is passed with heating tube 30 separately with absorber plate 40.The central authorities of this arch 532 form an opening 531.Extend to relative both sides from vertical two edges that this presses solidly portion 53 respectively at the both ends 54 of this cramp 52, and the both ends 54 of this cramp 52 press solidly portion 53 relatively and slightly tilt upward.
The end at the both ends 54 of this cramp 52 is respectively equipped with an installation portion 55.The edge contour of each installation portion 55 is curved, and the edge turnover of this installation portion 55 extends to form a flange 551, and this flange 551 helps strengthening the intensity of this installation portion 55, makes installation portion 55 not yielding.The middle part of this installation portion 55 is provided with an installing hole 552, and this installing hole 552 is roughly rounded.The periphery of this installing hole 552 protrudes out to the central authorities of this installing hole 552 and is provided with four retaining pieces 553.These retaining pieces 553 and evenly are distributed in the periphery of installing hole 552 in the form of sheets.Each retaining piece 553 is towards the central authorities and the downward-sloping extension of installing hole 552, and below installing hole 552, form a free end, the free-ended edge of each retaining piece 553 is the arc of indent, the free end space of these retaining pieces 553, these free-ended edges are common to constitute a discontinuous circumference, thereby surrounds a manhole 554 in the middle of this installing hole 552.When these retaining pieces 553 were subjected to vertical external force, the free end of this retaining piece 553 can open to the periphery of this installing hole 552, when external force is eliminated, the free end of retaining piece 553 just inwardly resilience reset.
The structure of two fasteners 58 is identical, and each fastener 58 roughly is column, comprises a pressure section 581, a holding section 583 and the thin rod part 582 between this pressure section 581 and holding section 583 along its bearing of trend.This pressure section 581 is positioned at the top, and holding section 583 is positioned at the bottom.The cross section of this pressure section 581 is a hexagon, the external diameter maximum of this pressure section 581, and the taking second place of holding section 583, the minimum of thin rod part 582, thus form an annular slot in the periphery of this thin rod part 582.The external diameter of this pressure section 581 is greater than the aperture of the installing hole 552 of described cramp 52, and the external diameter of this holding section 583 is less than the aperture of this installing hole 552 but greater than the aperture of this through hole 554, the aperture of the external diameter of this thin rod part 582 and this through hole 554 is suitable.The bottom center of this fastener 58 axially forms a screwed hole 580 along it, the screwed hole 580 of this fastener 58 in order to be located at circuit board on the cooperating of double-screw bolt (figure does not show), thereby fastener 58 is anchored on the circuit board.
When assembling this fastener 50 in advance, forcing in fastener 58 makes its holding section 583 pass installing hole 552, because the aperture of this through hole 554 is less than the external diameter of this holding section 583, thereby the retaining piece 553 around this through hole 554 just can be pushed in the bottom of this holding section 583, the stressed generation deformation of the free end of retaining piece 553 is opened outward, slips over this retaining piece 553 until the whole holding section 583 of this fastener 58.At this moment, because the aperture of the external diameter of thin rod part 582 and through hole 554 is suitable, these retaining piece 553 suffered extruding forces are eliminated, its free end resilience resets, be equipped in the annular slot of thin rod part 582 peripheries, restriction holding section 583 moves up, and then restriction fastener 58 moves up and breaks away from installing hole 552.In addition, the pressure section 581 of this fastener 58 is resisted against the periphery of this installing hole 552, limits this fastener 58 and moves down, and is so just can be with this fastener 58 easy and be installed on securely on this cramp 52.These fastener 50 parts are few, simple in structure, easy to assembly, and are convenient to transportation.With respect to traditional Spring screws fixed structure, this fastener 50 has reduced the material cost and the assembly cost of spring, and is with low cost.
When assembling this heat abstractor, described radiator 20 is fixed in air outlet 150 places of this centrifugal fan 10.Described absorber plate 40 is attached at the top of heat-generating electronic elements, and the bottom surface 44 of this absorber plate 40 contacts with heat-generating electronic elements.The evaporation section 32 of described heat pipe 30 is attached at the end face 42 of absorber plate 40, and condensation segment 34 is attached at the bottom of radiator 20 and extends along the direction that radiating fin 22 piles up.Fastener 50 bridges on absorber plate 40 and heat pipe 30, and the both ends 54 of fastener 50 are positioned at the both sides of absorber plate 40 and away from absorber plate 40.This heat pipe 30 runs through by this cramp 52 near the end of evaporation sections 32, and 30 pairs of this heat pipes should press solidly portion's 53 parts and be placed in this arch 532, and the part that 30 pairs of this heat pipes should opening 531 is placed on the external world.Rivet (figure does not show) passes this rivet hole that presses solidly portion 53 530 this cramp 52 is linked together with absorber plate 40.
The mode that generally can adopt welding couples together the two ends of heat pipe 30 respectively with absorber plate 40 and radiator 20.When welding the evaporation section 32 of this absorber plate 40 and heat pipe 30, can use anchor clamps to see through opening 531 on the cramp 52 and directly heat pipe 30 be clipped together with absorber plate 40 and make their tight contacts.Can make welding more firm like this, effect is better.
When being fixed in heat abstractor on the circuit board, centrifugal fan 10 is fixed on the circuit board such as the fixed part 162 that screw passes centrifugal fan 10 with fixture (figure does not show), and two fasteners 58 of fastener 50 are locked on the double-screw bolt of circuit board, owing to slightly tilt upward in the both ends 54 of this cramp 52, when the fastener 58 that forces in cramp 52 two ends with two fasteners 58 when pressing down, the both sides pressurized of this cramp 52 just produces pressure to the absorber plate 40 of the portion that presses solidly 53 belows in the middle part of being positioned at, and absorber plate 40 and electronic component are fitted tightly.
During heat abstractor work, absorber plate 40 absorbs the heat that heat-generating electronic elements produces, and heat is conducted to the evaporation section 32 of heat pipe 30, heat pipe 32 is sent to condensation segment 34 by the phase change in it with heat, reach radiator 20 again, utilize radiating fin 22 bigger heat exchange areas that heat is distributed, simultaneously, the impeller 18 of centrifugal fan 10 drives the radiator 20 that air-flows blow to major part to be positioned at air outlet 150 places, other has the fraction air-flow to blow out through the breach 170 of these wind deflector 17 guiding from these wind deflector 17 1 sides, can be directly to being located at other heat-generating electronic elements heat radiations on every side of this breach 170.

Claims (10)

1. fastener, it is characterized in that: this fastener comprises a cramp and two fasteners, this cramp comprises that being positioned at one of centre presses solidly portion and be positioned at the both ends that press solidly the portion both sides, this two fastener is mounted to respectively on the both ends of this cramp, each end of this cramp is provided with an installing hole, the periphery of this installing hole protrudes out to the central authorities of this installing hole and is provided with a plurality of retaining pieces, and the middle part of each fastener forms a draw-in groove, and these a plurality of retaining pieces are equipped in this draw-in groove and prevent that this fastener from coming off from installing hole.
2. fastener as claimed in claim 1 is characterized in that: each fastener comprises a pressure section, a holding section and the thin rod part between pressure section and holding section, the external diameter minimum of this thin rod part, thus form described draw-in groove in the periphery of this thin rod part.
3. fastener as claimed in claim 2, it is characterized in that: each retaining piece extends to form a free end to the central authorities of installing hole, the end of these retaining pieces separately and surround and form a through hole, the external diameter sizableness of the pore size of this through hole and the thin rod part of fastener.
4. fastener as claimed in claim 3 is characterized in that: the edge turnover of each end of described cramp forms a flange.
5. fastener as claimed in claim 3 is characterized in that: omit to a side perk at the both ends of this cramp portion of pressing solidly relatively.
6. fastener as claimed in claim 3, it is characterized in that: the external diameter of this pressure section is greater than the external diameter of this holding section, the external diameter of this pressure section is greater than the aperture of the installing hole of described cramp, the external diameter of this holding section is less than the aperture of this installing hole but greater than the aperture of this through hole, and the bottom center of this fastener axially forms a screwed hole along it.
7. heat abstractor, comprise a radiator, a heat pipe, an absorber plate and a fastener, the two ends of this heat pipe link to each other with radiator with this absorber plate respectively, it is characterized in that: this fastener is any described fastener in the claim 1 to 6, and the portion that presses solidly of this fastener is compressed to the end of heat pipe on the absorber plate.
8. heat abstractor as claimed in claim 7 is characterized in that: this heat abstractor also comprises a centrifugal fan, and the side direction of this centrifugal fan forms an air outlet, and this radiator is located at this air outlet place, and this centrifugal fan is to this radiator blowing.
9. heat abstractor as claimed in claim 7 is characterized in that: arch upward and form an arch in the middle part of the portion that presses solidly of this fastener, this heat pipe is contained in this arch the part that should press solidly portion.
10. heat abstractor as claimed in claim 9 is characterized in that: this arch central authorities form an opening, and this heat pipe is placed on the external world to part that should opening.
CN200910301006A 2009-03-21 2009-03-21 Heat sink and fastener thereof Pending CN101841987A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200910301006A CN101841987A (en) 2009-03-21 2009-03-21 Heat sink and fastener thereof
US12/504,677 US20100236756A1 (en) 2009-03-21 2009-07-17 Thermal module
JP2010066204A JP2010226114A (en) 2009-03-21 2010-03-23 Heat radiating device, and fixing module thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910301006A CN101841987A (en) 2009-03-21 2009-03-21 Heat sink and fastener thereof

Publications (1)

Publication Number Publication Date
CN101841987A true CN101841987A (en) 2010-09-22

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ID=42736476

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910301006A Pending CN101841987A (en) 2009-03-21 2009-03-21 Heat sink and fastener thereof

Country Status (3)

Country Link
US (1) US20100236756A1 (en)
JP (1) JP2010226114A (en)
CN (1) CN101841987A (en)

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CN103052299A (en) * 2011-10-12 2013-04-17 富瑞精密组件(昆山)有限公司 Heat radiating module and fixing method thereof
CN103140115A (en) * 2011-11-29 2013-06-05 富瑞精密组件(昆山)有限公司 Cooling device and buckle thereof
CN103754523A (en) * 2014-01-10 2014-04-30 德清中盈文具用品有限公司 Can body of garbage can
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CN103052299A (en) * 2011-10-12 2013-04-17 富瑞精密组件(昆山)有限公司 Heat radiating module and fixing method thereof
CN103140115A (en) * 2011-11-29 2013-06-05 富瑞精密组件(昆山)有限公司 Cooling device and buckle thereof
CN103140115B (en) * 2011-11-29 2016-12-14 富瑞精密组件(昆山)有限公司 Heat abstractor and fastener thereof
CN105593938A (en) * 2013-05-13 2016-05-18 因特里-普莱克斯技术股份有限公司 Disk separator plates and method of making disk separator plates for hard disk drives
CN105593938B (en) * 2013-05-13 2018-01-09 因特里-普莱克斯技术股份有限公司 Disc separator plate and the method for manufacturing the disc separator plate for hard disk drive
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