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US20080006399A1 - Heat dissipation module - Google Patents

Heat dissipation module Download PDF

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Publication number
US20080006399A1
US20080006399A1 US11/754,373 US75437307A US2008006399A1 US 20080006399 A1 US20080006399 A1 US 20080006399A1 US 75437307 A US75437307 A US 75437307A US 2008006399 A1 US2008006399 A1 US 2008006399A1
Authority
US
United States
Prior art keywords
thermal medium
heat
heat sink
dissipation module
heat dissipation
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.)
Abandoned
Application number
US11/754,373
Other languages
English (en)
Inventor
Yen-Min Su
Chi-Chun Huang
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.)
AMA Precision Inc
Original Assignee
AMA Precision Inc
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 AMA Precision Inc filed Critical AMA Precision Inc
Assigned to AMA PRECISION INC. reassignment AMA PRECISION INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HUANG, CHI-CHUN, SU, YEN-MIN
Publication of US20080006399A1 publication Critical patent/US20080006399A1/en
Abandoned legal-status Critical Current

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Classifications

    • H10W40/73—
    • H10W40/611—
    • H10W40/226—
    • H10W40/237—
    • H10W40/625—

Definitions

  • the present invention relates to a heat dissipation module. More particularly, the present invention relates to a heat dissipation module having a thermal medium cap.
  • a thermal medium of good thermal conductivity is usually coated on the bottom of the heat sink, and the heat sink contacts the heat-generating electronic device via the thermal medium.
  • the gap between the heat sink and the heat-generating electronic device is filled up by the thermal medium, such that the heat generated by the heat-generating electronic device is effectively conducted to the heat sink through the thermal medium and then is transferred to the external environment by convection, so as to achieve the effect of heat dissipation.
  • the thermal medium coated on the bottom of the heat sink is easy to be scraped or contaminated by dust.
  • the effect of thermal conductivity between the heat sink and the heat-generating electronic device is greatly decreased due to the scrape or contamination to the thermal medium.
  • a heat dissipation module is provided in a conventional art, which has a heat sink and a thermal medium cap.
  • the thermal medium cap is adhered to the bottom of the heat sink through an adhesive disposed at a portion of the cover thereof, so as to cover the thermal medium coated on the bottom of the heat sink, thereby preventing the thermal medium from being scraped or contaminated.
  • the thermal medium cap when the thermal medium cap is assembled to the heat sink, the thermal medium cap must be adhered to the bottom of the heat sink by manually coating the adhesive to cover the thermal medium, for example, using adhesive tapes, double-sided adhesive tapes or other methods to fix the cap onto the body of the heat sink, which consumes plenty of manpower cost.
  • the material cost of the adhesive also causes an increase of the product cost of the heat dissipation module.
  • the thermal medium cap is likely to release as the adhesive is not strong enough, such that the thermal medium may be scraped or contaminated. Therefore, when the heat sink is assembled to the heat-generating electronic device, the thermal conductivity effect between the heat sink and the heat-generating electronic device is greatly decreased, and even the heat-generating electronic device may be damaged as a result of poor heat dissipation effect.
  • the objective of the present invention is to provide a heat dissipation module, so as to solve the problems in the conventional art.
  • the present invention provides a heat dissipation module, which comprises a heat sink, a thermal medium, and a thermal medium cap.
  • the heat sink is suitable to be disposed on a heat source, and has a plurality of grooves.
  • the thermal medium is disposed on a surface of the heat sink contacting the heat source.
  • the thermal medium cap has a cover and a plurality of fixing portions extending from the cover. The thermal medium is covered by the cover, and the fixing portions penetrate the grooves.
  • the thermal medium cap has a cover and a plurality of fixing portions extending from the cover, wherein the thermal medium is covered by the cover, so as to prevent the thermal medium from being scraped or contaminated.
  • the fixing portions penetrate the grooves of the heat sink to fix the thermal medium cap onto the heat sink.
  • FIG. 1A is a combination view of a heat dissipation module according to a preferred embodiment of the present invention.
  • FIG. 1B is an exploded view of the heat dissipation module in FIG. 1A .
  • FIG. 2 is a schematic view of the heat dissipation module in FIG. 1A assembled to a heat source on a circuit board after the thermal medium cap is detached.
  • FIG. 3 is a schematic view of the connection between the locking bracket and the seat in FIG. 1B .
  • FIG. 1A is a combination view of a heat dissipation module according to a preferred embodiment of the present invention.
  • FIG. 1B is an exploded view of the heat dissipation module in FIG. 1A .
  • FIG. 2 is a schematic view of the heat dissipation module in FIG. 1A assembled to a heat source on a circuit board after the thermal medium cap is detached.
  • a heat dissipation module 100 of the present embodiment mainly comprises a heat sink 110 , a thermal medium 120 , and a thermal medium cap 130 .
  • the aforementioned heat sink 110 is suitable to be disposed at the heat source 12 on a circuit board 10 , so as to dissipate heat from the heat source 12 .
  • the thermal medium 120 is disposed on a surface 110 a of the heat sink 110 contacting the heat source.
  • the circuit board 10 is the mother board of a computer
  • the heat source 12 is the central processing unit (CPU).
  • the heat sink 110 of the present embodiment has a plurality of grooves 110 b , and the thermal medium cap 130 is fixed onto the heat sink 110 through the grooves 110 b , so as to prevent the thermal medium 120 from being scraped by human errors or contaminated by dust.
  • the thermal medium cap 130 has a cover 132 and a plurality of fixing portions 134 .
  • the cover 132 covers the thermal medium 120 .
  • the fixing portions 134 extending from the cover 132 are disposed at both sides of the cover 132 , wherein the position of the fixing portions 134 corresponds to that of the grooves 110 b of the heat sink 110 , such that the fixing portions 134 can penetrate the grooves 110 b .
  • the cover 132 further comprises a top wall 132 a and at least one side wall 132 b , wherein the top wall 132 a and the side walls 132 b constitute a covering space 132 c for covering the thermal medium 120 .
  • the material of the thermal medium cap 130 is a plastic material, and the thermal medium cap 130 can be formed by punching a plastic material sheet or by inject molding.
  • the cover 132 and the fixing portions 134 are integrated into one piece.
  • the material of the thermal medium cap 130 can be other materials that are deformable and have good restoring force.
  • the cover 132 and the fixing portions 134 can also be formed by folding or bonding.
  • the thermal medium cap 130 of the present embodiment is a plastic material
  • the thermal medium cap 130 is easily plastic-deformed temporarily under a force, thereby facilitating the fixing portions 134 successfully penetrating the grooves 110 b .
  • the thermal medium cap 130 returns to the original state, such that the fixing portions 134 are engaged in the grooves 110 b , and thus the thermal medium 120 is covered by the cover 132 .
  • the thermal medium cap 130 of the present embodiment has the advantages of being easily assembled to and disassembled from the heat sink 110 .
  • the heat sink 110 mainly comprises a seat 112 contacting the heat source 12 , a fin set 114 , a plurality of heat pipes 116 , and a locking bracket 118 .
  • the locking bracket 118 is fixed onto the seat 112 via a plurality of locking elements 118 a (with reference to FIG. 3 ), and the heat sink 110 is fixed onto the heat source 12 through the locking between the locking bracket 118 and the circuit board 10 .
  • the thermal medium 120 is disposed on a surface 112 a of the seat 112 contacting the heat source 12 .
  • each of the heat pipes 116 is connected to the seat 112 , and the fin set 114 is disposed at the other end 116 b of each of the heat pipes 116 .
  • the grooves 110 b are disposed at the side edges of the locking bracket 118 , and the fixing portions 134 can penetrate the grooves 110 b , such that the thermal medium cap 130 is fixed onto the heat sink 110 .
  • the components of the heat sink 110 are not limited in the present embodiment.
  • the heat sink 110 can be disposed on the heat source 12 by another fixing device, and the grooves 110 b can be disposed at another position of the seat 112 or heat sink 110 , such that the fixing portions 134 of the thermal medium cap 130 can penetrate through the grooves 110 b.
  • the heat sink of the present invention has a plurality of grooves.
  • the fixing portions of the thermal medium cap penetrate the grooves of the heat sink, and the cover covers the thermal medium, so as to prevent the thermal medium from being scraped by human errors or contaminated by dust.
  • the heat dissipation module of the present invention has the following advantages.
  • the heat dissipation module of the present invention has a low material cost.
  • the thermal medium cap of the present invention is directly fixed onto the heat sink through the engagement between the fixing portions and the grooves. Therefore, when the thermal medium cap is assembled to the heat sink, the additional manpower to coat the adhesive is not required. In other words, the heat dissipation module of the present invention has a low labor cost.
  • the thermal medium cap of the present invention is directly fixed onto the heat sink through the engagement between the fixing portions and the grooves, the thermal medium cap has the advantages of being easily assembled to and disassembled from the heat sink.
  • the thermal medium cap of the present invention is directly fixed onto the heat sink through the engagement between the fixing portions and the grooves, the thermal medium cap can be steadily disposed on the heat sink, so as to prevent the thermal medium from being scraped by human errors or contaminated by dust, and thus avoid the problem of the releasing of the thermal medium cap in the conventional art.

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  • Cooling Or The Like Of Electrical Apparatus (AREA)
US11/754,373 2006-07-05 2007-05-29 Heat dissipation module Abandoned US20080006399A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW95124449 2006-07-05
TW095124449A TWI292301B (en) 2006-07-05 2006-07-05 Heat dissipation module

Publications (1)

Publication Number Publication Date
US20080006399A1 true US20080006399A1 (en) 2008-01-10

Family

ID=38918141

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/754,373 Abandoned US20080006399A1 (en) 2006-07-05 2007-05-29 Heat dissipation module

Country Status (2)

Country Link
US (1) US20080006399A1 (zh)
TW (1) TWI292301B (zh)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040252461A1 (en) * 2003-06-11 2004-12-16 Wow Wu Heat sink assembly incorporating mounting frame
US6935420B1 (en) * 2004-06-16 2005-08-30 Hon Hai Precision Ind. Co., Ltd. Heat dissipation assembly
US20050265000A1 (en) * 2004-05-26 2005-12-01 Foxconn Technology Co., Ltd. Heat sink assembly with fixing devices
US7051790B2 (en) * 2003-12-19 2006-05-30 Asia Vital Component Co., Ltd. Protect cover for a radiator
US7063136B2 (en) * 2004-08-25 2006-06-20 Hon Hai Precision Industry Co., Ltd Heat dissipation device having cap for protecting thermal interface material thereon
US7068514B2 (en) * 2004-02-18 2006-06-27 Cpumate Inc. Protection structure for thermal conducting medium of heat dissipation device
US7093648B1 (en) * 2005-12-22 2006-08-22 Golden Sun News Technologies Co., Ltd. Heat pipe cooling device and method for manufacturing the same
US7165603B2 (en) * 2002-04-15 2007-01-23 Fujikura Ltd. Tower type heat sink
US7333336B2 (en) * 2004-10-20 2008-02-19 Lg Electronics Inc. Heat radiating apparatus
US7365983B2 (en) * 2005-05-24 2008-04-29 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Grease protecting apparatus for heat sink

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7165603B2 (en) * 2002-04-15 2007-01-23 Fujikura Ltd. Tower type heat sink
US20040252461A1 (en) * 2003-06-11 2004-12-16 Wow Wu Heat sink assembly incorporating mounting frame
US6952348B2 (en) * 2003-06-11 2005-10-04 Hon Hai Precision Ind. Co., Ltd. Heat sink assembly incorporating mounting frame
US7051790B2 (en) * 2003-12-19 2006-05-30 Asia Vital Component Co., Ltd. Protect cover for a radiator
US7068514B2 (en) * 2004-02-18 2006-06-27 Cpumate Inc. Protection structure for thermal conducting medium of heat dissipation device
US20050265000A1 (en) * 2004-05-26 2005-12-01 Foxconn Technology Co., Ltd. Heat sink assembly with fixing devices
US6935420B1 (en) * 2004-06-16 2005-08-30 Hon Hai Precision Ind. Co., Ltd. Heat dissipation assembly
US7063136B2 (en) * 2004-08-25 2006-06-20 Hon Hai Precision Industry Co., Ltd Heat dissipation device having cap for protecting thermal interface material thereon
US7333336B2 (en) * 2004-10-20 2008-02-19 Lg Electronics Inc. Heat radiating apparatus
US7365983B2 (en) * 2005-05-24 2008-04-29 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Grease protecting apparatus for heat sink
US7093648B1 (en) * 2005-12-22 2006-08-22 Golden Sun News Technologies Co., Ltd. Heat pipe cooling device and method for manufacturing the same

Also Published As

Publication number Publication date
TWI292301B (en) 2008-01-01
TW200806159A (en) 2008-01-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMA PRECISION INC., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SU, YEN-MIN;HUANG, CHI-CHUN;REEL/FRAME:019404/0943

Effective date: 20070516

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION