[go: up one dir, main page]

US20060162920A1 - Heat sink - Google Patents

Heat sink Download PDF

Info

Publication number
US20060162920A1
US20060162920A1 US11/039,853 US3985305A US2006162920A1 US 20060162920 A1 US20060162920 A1 US 20060162920A1 US 3985305 A US3985305 A US 3985305A US 2006162920 A1 US2006162920 A1 US 2006162920A1
Authority
US
United States
Prior art keywords
metal plate
retaining
plate member
heat sink
hole
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
US11/039,853
Inventor
Yen-Hsun Chou
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.)
YUN-CHENG CHEMICAL Ltd
Yuh Cheng Chemical Ltd
Original Assignee
Yuh Cheng Chemical 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 Yuh Cheng Chemical Ltd filed Critical Yuh Cheng Chemical Ltd
Priority to US11/039,853 priority Critical patent/US20060162920A1/en
Assigned to YUN-CHENG CHEMICAL LTD. reassignment YUN-CHENG CHEMICAL LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHOU, YEN-HSUN
Publication of US20060162920A1 publication Critical patent/US20060162920A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0029—Heat sinks

Definitions

  • the present invention relates to a heat sink for dissipating heat from a heat source and more particularly, to such a heat sink, which has a tight structure and is easy to install.
  • FIG. 5 shows a heat sink according to the prior art.
  • the heat sink 1 is formed of a plurality of metal plate members 2 connected in a stack.
  • Each metal plate member 2 has a plurality of mounting lugs 3 and a plurality of mounting through holes 4 corresponding to the mounting lugs 3 .
  • Each mounting lug 3 has a base 5 and two upright arms 6 at two sides of the base 5 .
  • the metal plate members 2 are fastened together by inserting the mounting lugs 3 of one metal plate member 2 into the mounting through holes 4 of another metal plate member 2 and then hammering down the upright arms 6 of each mounting lug 3 .
  • This structure of heat sink 1 is strong, however its complicated installation procedure requires much time and labor, resulting in a high manufacturing cost.
  • the present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a heat sink, which has a tight structure and is easy to install.
  • the heat sink comprises a plurality of metal plate members fastened together in a stack.
  • Each metal plate member comprises a main body, a first sidewall extending from a first side of the main body and having a through hole, a second sidewall extending from a second side of the main body, a retaining lug extending from the first sidewall and having a retaining hole, and a protrusion suspended in the through hole such that the retaining lug of one metal plate member is insertable into the through hole of another metal plate member, and the protrusion of one metal plate member is engageable into the retaining hole of the retaining lug of another metal plate member.
  • FIG. 1 is an exploded view of a heat sink according to a first preferred embodiment of the present invention.
  • FIG. 2 is an enlarged view of a part of a metal plate member for the heat sink according to the first preferred embodiment of the present invention.
  • FIG. 3 is a schematic assembly view of the first preferred embodiment of the present invention.
  • FIG. 4 is an enlarge view of a part of a heat sink according to a second preferred embodiment of the present invention.
  • FIG. 5 is a schematic view of a heat sink according to the prior art.
  • a heat sink 10 in accordance with the first preferred embodiment of the present invention is shown comprised of a plurality of metal plate members 20 connected in a stack.
  • Each metal plate member 20 comprises a flat rectangular main body 22 , a first sidewall 30 perpendicularly extending from one lateral side of the main body 22 , and a second sidewall 40 perpendicularly extending from the other lateral side of the main body 22 .
  • the metal plate members 20 are made of heat conducting material, for example, copper or aluminum.
  • Two semicircle-shaped retaining lugs 32 are bilaterally downwardly extending from the first sidewall 30 , each having a retaining hole 33 .
  • the first sidewall 30 has four bottom notches 34 respectively disposed at two opposite lateral sides of each of the retaining lugs 32 .
  • the first sidewall further has two through holes 35 , which are U-shaped slots disposed adjacent to the main body 22 and respectively spaced above the retaining lugs 32 .
  • the second sidewall 40 has two retaining lugs 42 and two through holes 45 corresponding to the retaining lugs 32 and through holes 35 of the first sidewall 30 .
  • the retaining lugs 42 each have a retaining hole 43 .
  • Four bottom notches 44 are respectively disposed at two sides of each of the retaining lugs 32 .
  • the main body 22 has four protrusions 36 , 46 , which suspend respectively in the through holes 35 , 45 of the sidewalls 30 , 40 .
  • the retaining lugs 32 of the metal plate members 20 define with the respective first sidewall 30 a contained angle ⁇ , for example, 20°.
  • the retaining lugs 42 of the metal plate members 20 define with the respective second sidewall 40 same contained angle ⁇ . Therefore, when attaching one metal plate member 20 to another, the retaining lugs 32 , 42 do not interfere with the corresponding protrusions 36 , 46 . Therefore, the metal plate members 20 can be accurately aligned.
  • the retaining lugs 32 , 42 are respectively fitted into the through holes 35 , 45 to force the respective retaining holes 33 , 43 into engagement with the respective protrusions 36 , 46 .
  • the metal plate members 20 can conveniently fastened together in a stack to form the desired heat sink 10 . When assembled, the whole structure is strong and steady.
  • first sidewall and the second sidewall are provided at two opposite lateral sides of the main body.
  • first sidewall and the second sidewall can be provided at two adjacent sides of the main body.
  • the retaining lugs, the through holes, the retaining holes, or the protrusions may be variously shaped. The number or locations of the retaining lugs may be changed to fit different requirements.
  • FIG. 5 shows a heat sink 50 according to the second preferred embodiment of the present invention.
  • the retaining hole 54 of each retaining lug 52 has a semicircular shape for receiving the respective protrusion 56 .
  • first sidewall and the second sidewall may be respectively perpendicularly extending from two adjacent sides of the body. Accordingly, the invention is not to be limited except as by the appended claims

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

A heat sink includes a plurality of metal plate members fastened together in a stack. Each metal plate member includes a main body, a first sidewall extending from a first side of the main body and having a through hole, a second sidewall extending from a second side of the main body, a retaining lug extending from the first sidewall and having a retaining hole, and a protrusion suspended in the through hole such that the retaining lug of one metal plate member is insertable into the through hole of another metal plate member, and the protrusion of one metal plate member is engageable into the retaining hole of the retaining lug of another metal plate member.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a heat sink for dissipating heat from a heat source and more particularly, to such a heat sink, which has a tight structure and is easy to install.
  • 2. Description of the Related Art
  • FIG. 5 shows a heat sink according to the prior art. According to this design, the heat sink 1 is formed of a plurality of metal plate members 2 connected in a stack. Each metal plate member 2 has a plurality of mounting lugs 3 and a plurality of mounting through holes 4 corresponding to the mounting lugs 3. Each mounting lug 3 has a base 5 and two upright arms 6 at two sides of the base 5. During installation, the metal plate members 2 are fastened together by inserting the mounting lugs 3 of one metal plate member 2 into the mounting through holes 4 of another metal plate member 2 and then hammering down the upright arms 6 of each mounting lug 3. This structure of heat sink 1 is strong, however its complicated installation procedure requires much time and labor, resulting in a high manufacturing cost.
    • SUMMARY OF THE INVENTION
  • The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a heat sink, which has a tight structure and is easy to install.
  • To achieve this object of the present invention, the heat sink comprises a plurality of metal plate members fastened together in a stack. Each metal plate member comprises a main body, a first sidewall extending from a first side of the main body and having a through hole, a second sidewall extending from a second side of the main body, a retaining lug extending from the first sidewall and having a retaining hole, and a protrusion suspended in the through hole such that the retaining lug of one metal plate member is insertable into the through hole of another metal plate member, and the protrusion of one metal plate member is engageable into the retaining hole of the retaining lug of another metal plate member.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded view of a heat sink according to a first preferred embodiment of the present invention.
  • FIG. 2 is an enlarged view of a part of a metal plate member for the heat sink according to the first preferred embodiment of the present invention.
  • FIG. 3 is a schematic assembly view of the first preferred embodiment of the present invention.
  • FIG. 4 is an enlarge view of a part of a heat sink according to a second preferred embodiment of the present invention.
  • FIG. 5 is a schematic view of a heat sink according to the prior art.
    • DETAILED DESCRIPTION OF THE INVENTION
  • Referring to FIGS. 1 and 2, a heat sink 10 in accordance with the first preferred embodiment of the present invention is shown comprised of a plurality of metal plate members 20 connected in a stack. Each metal plate member 20 comprises a flat rectangular main body 22, a first sidewall 30 perpendicularly extending from one lateral side of the main body 22, and a second sidewall 40 perpendicularly extending from the other lateral side of the main body 22. The metal plate members 20 are made of heat conducting material, for example, copper or aluminum.
  • Two semicircle-shaped retaining lugs 32 are bilaterally downwardly extending from the first sidewall 30, each having a retaining hole 33. The first sidewall 30 has four bottom notches 34 respectively disposed at two opposite lateral sides of each of the retaining lugs 32. The first sidewall further has two through holes 35, which are U-shaped slots disposed adjacent to the main body 22 and respectively spaced above the retaining lugs 32.
  • The second sidewall 40 has two retaining lugs 42 and two through holes 45 corresponding to the retaining lugs 32 and through holes 35 of the first sidewall 30. The retaining lugs 42 each have a retaining hole 43. Four bottom notches 44 are respectively disposed at two sides of each of the retaining lugs 32.
  • Further, the main body 22 has four protrusions 36, 46, which suspend respectively in the through holes 35, 45 of the sidewalls 30, 40.
  • Referring to FIG. 3, the retaining lugs 32 of the metal plate members 20 define with the respective first sidewall 30 a contained angle α, for example, 20°. The retaining lugs 42 of the metal plate members 20 define with the respective second sidewall 40 same contained angle α. Therefore, when attaching one metal plate member 20 to another, the retaining lugs 32, 42 do not interfere with the corresponding protrusions 36, 46. Therefore, the metal plate members 20 can be accurately aligned. The retaining lugs 32, 42 are respectively fitted into the through holes 35, 45 to force the respective retaining holes 33, 43 into engagement with the respective protrusions 36, 46. Because of the design of the bottom notches 34, 44, the retaining lugs 32, 42 are easily deformable for quick installation. Therefore, the metal plate members 20 can conveniently fastened together in a stack to form the desired heat sink 10. When assembled, the whole structure is strong and steady.
  • The present invention may be variously embodied. In the aforesaid embodiment, the first sidewall and the second sidewall are provided at two opposite lateral sides of the main body. Alternatively, the first sidewall and the second sidewall can be provided at two adjacent sides of the main body. Further, the retaining lugs, the through holes, the retaining holes, or the protrusions may be variously shaped. The number or locations of the retaining lugs may be changed to fit different requirements.
  • FIG. 5 shows a heat sink 50 according to the second preferred embodiment of the present invention. According to this embodiment, the retaining hole 54 of each retaining lug 52 has a semicircular shape for receiving the respective protrusion 56.
  • Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. For example, the first sidewall and the second sidewall may be respectively perpendicularly extending from two adjacent sides of the body. Accordingly, the invention is not to be limited except as by the appended claims

Claims (6)

1. A heat sink comprising a plurality of metal plate members fastened together in a stack, each said metal plate member comprising a main body, a first sidewall extending from a first side of said main body and having a through hole, a second sidewall extending from a second side of said main body, a retaining lug extending from said first sidewall and having a retaining hole, and a protrusion suspended in said through hole such that the retaining lug of one said metal plate member is insertable into the through hole of another said metal plate member and the protrusion of one said metal plate member is engageable into the retaining hole of the retaining lug of another said metal plate member.
2. The heat sink as claimed in claim 1, wherein each said metal plate member further comprises two bottom notches respectively disposed at two sides of said retaining lug.
3. The heat sink as claimed in claim 1, wherein said retaining lug has a semicircular shape.
4. The heat sink as claimed in claim 1, wherein said protrusion has a rectangular shape.
5. The heat sink as claimed in claim 1, wherein said retaining hole has a rectangular shape.
6. The heat sink as claimed in claim 1, wherein said retaining hole has a semicircular shape.
US11/039,853 2005-01-24 2005-01-24 Heat sink Abandoned US20060162920A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/039,853 US20060162920A1 (en) 2005-01-24 2005-01-24 Heat sink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/039,853 US20060162920A1 (en) 2005-01-24 2005-01-24 Heat sink

Publications (1)

Publication Number Publication Date
US20060162920A1 true US20060162920A1 (en) 2006-07-27

Family

ID=36695495

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/039,853 Abandoned US20060162920A1 (en) 2005-01-24 2005-01-24 Heat sink

Country Status (1)

Country Link
US (1) US20060162920A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060285296A1 (en) * 2005-06-21 2006-12-21 Yuh-Cheng Chemical Ltd. Heat sink and its fabrication method
US20080295995A1 (en) * 2007-05-28 2008-12-04 Delta Electronics, Inc. Heat sink and manufacturing method thereof
US20090020279A1 (en) * 2007-07-17 2009-01-22 Chin-Hsing Horng Jointing structure of a heat dissipating fin
US20090060679A1 (en) * 2007-08-31 2009-03-05 Chin-Hsing Horng Fastening apparatus of a heat radiator
US20100139905A1 (en) * 2008-12-06 2010-06-10 Chin-Hsing Horng Combination Heat Sink Formed of a Stack of Heat Spreader Sheet Members
TWI407295B (en) * 2008-07-18 2013-09-01 Foxconn Tech Co Ltd Heat sink
US20140318757A1 (en) * 2013-04-24 2014-10-30 Foxconn Technology Co., Ltd. Heat sink incorporating interlocked fin
CN111278261A (en) * 2020-03-12 2020-06-12 江门市江海区金泰达五金有限公司 Radiator and production method thereof
CN114674166A (en) * 2022-03-07 2022-06-28 浙江银轮机械股份有限公司 Heat Exchanger and Battery Thermal Management System

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434676A (en) * 1944-03-11 1948-01-20 Scovill Manufacturing Co Cooling unit
US6474407B1 (en) * 2001-12-12 2002-11-05 Delta Electronics Inc. Composite heat sink with high density fins and assembling method for the same
US6644386B1 (en) * 2002-12-03 2003-11-11 A-Chu Chang Engaging mechanism for heat-dissipating member
US6672379B1 (en) * 2002-07-29 2004-01-06 Waffer Technology Corp. Positioning and buckling structure for use in a radiator
US6754079B1 (en) * 2003-04-18 2004-06-22 Hung-Chun Chang KD heat sink fins
US6871698B2 (en) * 2002-12-27 2005-03-29 Hon Hai Precision Ind. Co., Ltd. Heat dissipation device with interlocking fins
US6995981B2 (en) * 2003-04-18 2006-02-07 Hon Hai Precision Inc. Co., Ltd. Heat sink assembly with combined parallel fins

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434676A (en) * 1944-03-11 1948-01-20 Scovill Manufacturing Co Cooling unit
US6474407B1 (en) * 2001-12-12 2002-11-05 Delta Electronics Inc. Composite heat sink with high density fins and assembling method for the same
US6672379B1 (en) * 2002-07-29 2004-01-06 Waffer Technology Corp. Positioning and buckling structure for use in a radiator
US6644386B1 (en) * 2002-12-03 2003-11-11 A-Chu Chang Engaging mechanism for heat-dissipating member
US6871698B2 (en) * 2002-12-27 2005-03-29 Hon Hai Precision Ind. Co., Ltd. Heat dissipation device with interlocking fins
US6754079B1 (en) * 2003-04-18 2004-06-22 Hung-Chun Chang KD heat sink fins
US6995981B2 (en) * 2003-04-18 2006-02-07 Hon Hai Precision Inc. Co., Ltd. Heat sink assembly with combined parallel fins

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060285296A1 (en) * 2005-06-21 2006-12-21 Yuh-Cheng Chemical Ltd. Heat sink and its fabrication method
US7304851B2 (en) * 2005-06-21 2007-12-04 Yuh-Cheng Chemical Ltd. Heat sink and its fabrication method
US20080295995A1 (en) * 2007-05-28 2008-12-04 Delta Electronics, Inc. Heat sink and manufacturing method thereof
US20090020279A1 (en) * 2007-07-17 2009-01-22 Chin-Hsing Horng Jointing structure of a heat dissipating fin
US7677298B2 (en) * 2007-07-17 2010-03-16 Chin-Hsing Horng Jointing structure of a heat dissipating fin
US20090060679A1 (en) * 2007-08-31 2009-03-05 Chin-Hsing Horng Fastening apparatus of a heat radiator
TWI407295B (en) * 2008-07-18 2013-09-01 Foxconn Tech Co Ltd Heat sink
US20100139905A1 (en) * 2008-12-06 2010-06-10 Chin-Hsing Horng Combination Heat Sink Formed of a Stack of Heat Spreader Sheet Members
US20140318757A1 (en) * 2013-04-24 2014-10-30 Foxconn Technology Co., Ltd. Heat sink incorporating interlocked fin
CN111278261A (en) * 2020-03-12 2020-06-12 江门市江海区金泰达五金有限公司 Radiator and production method thereof
CN114674166A (en) * 2022-03-07 2022-06-28 浙江银轮机械股份有限公司 Heat Exchanger and Battery Thermal Management System

Similar Documents

Publication Publication Date Title
US8885342B2 (en) Thermal management for electronic device housing
US7661466B2 (en) Heat sink assembly having a fin also functioning as a supporting bracket
US8459841B2 (en) Lamp assembly
US7667970B2 (en) Heat sink assembly for multiple electronic components
US7626822B2 (en) Heat sink assembly for multiple electronic components
US20090323347A1 (en) Led lamp
US7480144B2 (en) Heat dissipation device
US20140138074A1 (en) Heat sink module
US20090316352A1 (en) Memory module assembly having heat sinks with improved structure
US7051792B2 (en) Heat dissipation device
US8579389B1 (en) Server cabinet
CN101116384A (en) Printed Circuit Board Fixtures
KR20140005621U (en) Corrugated radiation fin and heat sink using same
US8584736B2 (en) Heat sink assembly having a fin also functioning as a supporting bracket
US20060162920A1 (en) Heat sink
US20130043006A1 (en) Heat disspation device
US20090183863A1 (en) Connecting Structure for Connecting Heat Radiation Fins
US20130105132A1 (en) Heat sink fin and heat sink device
US20020024797A1 (en) Heat dissipation device
US20140355278A1 (en) Attachment mechanism for projection lamp
JP2016212993A (en) Luminaire, fixing bracket, and fixing bracket set
US9030816B2 (en) Mounting apparatus for fan
US7304851B2 (en) Heat sink and its fabrication method
CN101776942A (en) Radiator fixing device
US20140112706A1 (en) Pole assembly

Legal Events

Date Code Title Description
AS Assignment

Owner name: YUN-CHENG CHEMICAL LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHOU, YEN-HSUN;REEL/FRAME:015973/0698

Effective date: 20050107

STCB Information on status: application discontinuation

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