US20120043067A1 - Heat sink core member and its fabrication procedure - Google Patents

Heat sink core member and its fabrication procedure Download PDF

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Publication number
US20120043067A1
US20120043067A1 US12/885,573 US88557310A US2012043067A1 US 20120043067 A1 US20120043067 A1 US 20120043067A1 US 88557310 A US88557310 A US 88557310A US 2012043067 A1 US2012043067 A1 US 2012043067A1
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US
United States
Prior art keywords
heat sink
core member
tubular body
sink core
punch
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
US12/885,573
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English (en)
Inventor
Tsung-Hsien 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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20120043067A1 publication Critical patent/US20120043067A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/20—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being attachable to the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814—Conductive parts
    • H01L21/4871—Bases, plates or heatsinks
    • H01L21/4878—Mechanical treatment, e.g. deforming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • H01L23/3672—Foil-like cooling fins or heat sinks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/10—Heat sinks
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means

Definitions

  • the present invention relates to heat sink fabrication technology and more particularly to a method of making a heat sink core member by extruding a predetermined mass of aluminum block into a tubular body having one close end wall and then punch-cutting the outside wall of the tubular body to form a plurality of densely distributed and equally spaced vertical retaining grooves for easy mounting of radiation fins.
  • a radiation fin type heat sink generally comprises a tubular core member and a plurality of radiation fins.
  • the radiation fins are radially spaced around the periphery of the tubular core member. Because the radiation fins are integrally formed with the periphery of the tubular core member, the fabrication of the heat sink is complicated, and the cost is high. Further, due to technical limitation, the radiation fins have a thick wall thickness. In consequence, the heat sink is heavy. Due to a limited number of radiation fins, the heat dissipation efficiency of this kind of heat sink is limited.
  • the tubular core member is attached with its one end to the heat source (CPU or LED device).
  • a heat pipe may be attached to enhance heat dissipation performance.
  • the tubular core member may be made in the shape of a round tube, rectangular tube or polygonal tube.
  • a heat sink core member may be directly extruded from an aluminum ingot. This method is to extrude an aluminum ingot into a tubular member having longitudinal grooves spaced around the periphery. The tubular member is than cut into tubular core members subject to the desired length. Radiation fins are than fastened to the longitudinal grooves of each tubular core member.
  • the present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a heat sink core member fabrication procedure for making a heat sink core member by means of preparing a predetermined mass of aluminum block, and then extruding the aluminum block through an extruding machine into a tubular body having one close end wall and then punch-cutting the outside wall of the tubular body to form a plurality of densely distributed and equally spaced vertical retaining grooves.
  • radiation fins can easily be affixed to the vertical retaining grooves of the tubular body to form a high-performance heat sink.
  • the finished heat sink core member has a close end wall.
  • the invention prevents a capillary effect, thus effectively facilitating heat transfer.
  • the punch-cutting step may include three substeps, i.e., the coarse punch-cutting substep to punch-cut the outside wall of said tubular body into a predetermined number of rough grooves, the fine punch-cutting substep to punch-cut each said rough groove into a fine groove, and the superfine punch-cutting substep to punch-cut each said fine groove. These substeps are performed automatically for facilitating the fabrication and saving the fabrication time and labor.
  • FIG. 1 is a heat sink core member fabrication procedure in accordance with the present invention.
  • FIG. 2 is an alternate form of the heat sink core member fabrication procedure in accordance with the present invention.
  • FIG. 3 illustrates a circular aluminum block prepared according to the present invention.
  • FIG. 4 illustrates a rectangular aluminum block prepared according to the present invention.
  • FIG. 5 illustrates a round tubular body extruded according to the present invention.
  • FIG. 6 is a sectional view of FIG. 5 .
  • FIG. 7 is a top view of FIG. 5 .
  • FIG. 8 illustrates a rectangular tubular body extruded according to the present invention.
  • FIG. 9 is a sectional view of FIG. 8 .
  • FIG. 10 is a top view of FIG. 8 .
  • FIG. 11 is an oblique elevation of a round tube-like heat sink core member prepared according to the present invention.
  • FIG. 12 is a sectional view of FIG. 11 .
  • FIG. 13 is a top view of FIG. 11 .
  • FIG. 14 is an oblique elevation of a rectangular tube-like heat sink core member prepared according to the present invention.
  • FIG. 15 is a sectional view of FIG. 14 .
  • FIG. 16 is a top view of FIG. 14 .
  • FIG. 17 is a schematic sectional view, illustrating radiation fins inserted to the respective vertical retaining grooves of a round tube-like heat sink core member according to the present invention.
  • FIG. 18 corresponds to FIG. 17 , illustrating the radiation fins affixed to the respective vertical retaining grooves.
  • FIG. 19 is an oblique elevation of a heat sink based on a round tube-like heat sink core member according to the present invention.
  • FIG. 20 is an oblique elevation of a heat sink based on a rectangular tube-like heat sink core member according to the present invention.
  • a predetermined mass of aluminum block 1 is extruded through an extruding machine into a tubular body 10 having one close end wall 11 (see FIGS. 5 ⁇ 7 or FIGS. 8 ⁇ 10 ), and then the outside wall of the tubular body 10 is punch-cut to form a plurality of vertical retaining grooves 12 that are equally spaced around the periphery in a densely distributed manner (see FIGS. 11 ⁇ 13 or FIGS. 14 ⁇ 16 ), and thus a heat sink core member 100 is obtained.
  • Radiation fins 200 can then be fastened to the retaining grooves 12 of the heat sink core member 100 (see FIG. 17 or FIG. 18 ) to form a heat sink 300 (see FIG. 19 or FIG. 20 ).
  • the heat sink core member fabrication procedure includes the steps of:
  • the step of punch-cutting the outside wall of the tubular body 10 includes the substeps of coarse punch-cutting, fine punch-cutting and superfine punch-cutting.
  • the coarse punch-cutting substep is to punch-cut the outside wall of the tubular body 10 into a predetermined number of rough grooves.
  • the fine punch-cutting substep is to punch-cut each rough groove into a fine groove substantially close to the predetermined size.
  • the superfine punch-cutting substep is to punch-cut each fine groove again, modifying the size of each fine groove into one respective finished vertical retaining groove 12 .
  • the outside wall of the tubular body 10 is rapidly and efficiently processed to form the desired, densely distributed and equally spaced vertical retaining grooves 12 .
  • These substeps are performed automatically for facilitating the fabrication and saving much the fabrication time and labor.
  • vertical ribs 13 are formed on the inside wall of the tubular body 10 (see FIGS. 5 ⁇ 7 or FIGS. 8 ⁇ 10 ). Further, a hole-drilling step may be performed to make a mounting hole 14 on each vertical rib 13 (see FIG. 11 or FIG. 14 ), for mounting of an attached member. One or more mounting holes may be formed in the close end wall 11 of the tubular body 10 for the mounting of an attached member.
  • tubular body 10 can be made in any of a variety of shapes and dimensions.
  • the tubular body 10 can be shaped like a round tube as shown in FIGS. 5 ⁇ 7 .
  • the tubular body 10 can be shaped like a rectangular tube as shown in FIGS. 8 ⁇ 10 .
  • the radiation fins 200 to be fastened to the tubular body 10 can be made in any of a variety of shapes and sizes. However, the radiation fins 200 must be configured for press-fitting into or riveting to the vertical retaining grooves 12 .
  • the vertical retaining grooves 12 may be variously configured.
  • the outside wall of the tubular body 10 is so punch-cut that a first protruding portion 121 and a second protruding portion 122 are formed and disposed along two opposite lateral sides of each vertical retaining groove 12 .
  • the adjacent first protruding portion 121 is deformed in the direction toward the adjacent second protruding portion 121 to have the radiation fin 200 be firmly seized in between the first protruding portion 121 and the second protruding portion 122 (see FIG. 18 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Extrusion Of Metal (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Forging (AREA)
US12/885,573 2010-08-20 2010-09-20 Heat sink core member and its fabrication procedure Abandoned US20120043067A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW099127906A TW201043357A (en) 2010-08-20 2010-08-20 Core tube base for heat radiator and method for manufacturing the same
TW099127906 2010-08-20

Publications (1)

Publication Number Publication Date
US20120043067A1 true US20120043067A1 (en) 2012-02-23

Family

ID=43993224

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/885,573 Abandoned US20120043067A1 (en) 2010-08-20 2010-09-20 Heat sink core member and its fabrication procedure

Country Status (5)

Country Link
US (1) US20120043067A1 (ko)
JP (1) JP2012044129A (ko)
KR (1) KR20120018039A (ko)
DE (2) DE202010008604U1 (ko)
TW (1) TW201043357A (ko)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130229071A1 (en) * 2012-03-05 2013-09-05 Johnson Electric S.A. Electric motor
CN103406737A (zh) * 2013-08-21 2013-11-27 安徽鸿路钢结构(集团)股份有限公司 双角度圆管柱组装工法
US20180054978A1 (en) * 2016-08-30 2018-03-01 GE Lighting Solutions, LLC Luminaire including a heat dissipation structure
US11313631B2 (en) * 2020-07-07 2022-04-26 Hfc Industry Limited Composite heat sink having anisotropic heat transfer metal-graphite composite fins

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102527758B (zh) * 2012-01-20 2014-12-03 东莞汉旭五金塑胶科技有限公司 散热器铝底座的挤压成型模具及其制法
CN102699632B (zh) * 2012-06-04 2014-07-09 宁波安拓实业有限公司 一种减震器衬套毛坯的制造工艺

Citations (10)

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US2289984A (en) * 1940-07-12 1942-07-14 Westinghouse Electric & Mfg Co Air cooler for power tubes
US20050211416A1 (en) * 2003-10-17 2005-09-29 Kenya Kawabata Heat sink with fins and a method for manufacturing the same
US20060042777A1 (en) * 2004-08-31 2006-03-02 Delano Andrew D Heat sink fin with stator blade
US7028757B1 (en) * 2004-10-21 2006-04-18 Hewlett-Packard Development Company, L.P. Twin fin arrayed cooling device with liquid chamber
US7296619B2 (en) * 2004-10-21 2007-11-20 Hewlett-Packard Development Company, L.P. Twin fin arrayed cooling device with heat spreader
US20090117402A1 (en) * 2007-11-06 2009-05-07 Kao Y H Thermal module
US20090147520A1 (en) * 2007-12-07 2009-06-11 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp with a heat sink
US20100044009A1 (en) * 2008-08-20 2010-02-25 Shyh-Ming Chen Annular heat dissipating device
US20100084116A1 (en) * 2008-10-07 2010-04-08 Shyh-Ming Chen Structure of heat sink
US20100181046A1 (en) * 2009-01-20 2010-07-22 Shyh Ming Chen Ring heat dissipating device formed by punching and riveting through a shaping mold

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JP3453612B2 (ja) * 1994-12-22 2003-10-06 昭和電工株式会社 ピンフィンヒートシンクの製造方法
JP3597640B2 (ja) * 1996-05-24 2004-12-08 蛇の目ミシン工業株式会社 ヒートシンク製造方法
DE19636237A1 (de) * 1996-06-21 1998-01-02 Siemens Ag Schaltkontaktsystem eines Niederspannungs-Leistungsschalters mit biegsamen Leitern
JP2000083343A (ja) * 1998-09-03 2000-03-21 Mitsubishi Electric Corp モーターフレーム及びモーターフレームの製造方法
JP2004100021A (ja) * 2002-09-12 2004-04-02 Kobe Steel Ltd 切削用鋼材及び機械構造用部品
JP4015146B2 (ja) * 2004-10-12 2007-11-28 古河電気工業株式会社 フィンを備えたヒートシンクおよびその製造方法
JP2010040996A (ja) * 2008-08-08 2010-02-18 Furukawa Electric Co Ltd:The ヒートシンク
JP3158105U (ja) * 2009-11-26 2010-03-18 崇賢 ▲黄▼ 電子素子の放熱構造体

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289984A (en) * 1940-07-12 1942-07-14 Westinghouse Electric & Mfg Co Air cooler for power tubes
US20050211416A1 (en) * 2003-10-17 2005-09-29 Kenya Kawabata Heat sink with fins and a method for manufacturing the same
US20060042777A1 (en) * 2004-08-31 2006-03-02 Delano Andrew D Heat sink fin with stator blade
US7028757B1 (en) * 2004-10-21 2006-04-18 Hewlett-Packard Development Company, L.P. Twin fin arrayed cooling device with liquid chamber
US7296619B2 (en) * 2004-10-21 2007-11-20 Hewlett-Packard Development Company, L.P. Twin fin arrayed cooling device with heat spreader
US20090117402A1 (en) * 2007-11-06 2009-05-07 Kao Y H Thermal module
US20090147520A1 (en) * 2007-12-07 2009-06-11 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp with a heat sink
US20100044009A1 (en) * 2008-08-20 2010-02-25 Shyh-Ming Chen Annular heat dissipating device
US20100084116A1 (en) * 2008-10-07 2010-04-08 Shyh-Ming Chen Structure of heat sink
US20100181046A1 (en) * 2009-01-20 2010-07-22 Shyh Ming Chen Ring heat dissipating device formed by punching and riveting through a shaping mold

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130229071A1 (en) * 2012-03-05 2013-09-05 Johnson Electric S.A. Electric motor
US9154013B2 (en) * 2012-03-05 2015-10-06 Johnson Electric S.A. Electric motor
CN103406737A (zh) * 2013-08-21 2013-11-27 安徽鸿路钢结构(集团)股份有限公司 双角度圆管柱组装工法
US20180054978A1 (en) * 2016-08-30 2018-03-01 GE Lighting Solutions, LLC Luminaire including a heat dissipation structure
US11134618B2 (en) * 2016-08-30 2021-10-05 Current Lighting Solutions, Llc Luminaire including a heat dissipation structure
US11313631B2 (en) * 2020-07-07 2022-04-26 Hfc Industry Limited Composite heat sink having anisotropic heat transfer metal-graphite composite fins

Also Published As

Publication number Publication date
DE202010008604U1 (de) 2011-05-12
TW201043357A (en) 2010-12-16
KR20120018039A (ko) 2012-02-29
DE102011000230A1 (de) 2012-02-23
JP2012044129A (ja) 2012-03-01
TWI373385B (ko) 2012-10-01

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