US20120043067A1 - Heat sink core member and its fabrication procedure - Google Patents
Heat sink core member and its fabrication procedure Download PDFInfo
- 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
- Authority
- 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
Links
Images
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 at least one potential-jump barrier or surface barrier, e.g. 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
Abstract
A heat sink core member made by: preparing a predetermined mass of aluminum block, 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 heat sink.
Description
- (a) Field of the Invention
- 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.
- (b) Description of the Prior Art
- 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.
- During application, 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. Further, the tubular core member may be made in the shape of a round tube, rectangular tube or polygonal tube.
- There are known heat sinks in which the radiation fins are soldered to the periphery of the tubular core member. However, it takes much time and labor to solder every radiation fin to the periphery of the tubular core member. Before soldering, an electroplating technique may be necessary so that different metal materials can be soldered together. Further, this fabrication procedure is not environmentally friendly. Further, solder-bonding will lower heat transfer efficiency. Further, a heat sink may be directly cut from a solid aluminum block. This method wastes much labor and time and will produce many waste materials, increasing the cost considerably.
- Further, 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. This fabrication procedure still has drawbacks as follows:
-
- 1. Due to technical limitations, the number of the longitudinal grooves of the extruded heat sink core member is limited, and therefore only a limited number of radiation fins can be fastened to the periphery of the heat sink core member. When the number of the longitudinal grooves is increased, the wall structure of the heat sink core member under extrusion may be damaged.
- 2. The finished heat sink core member is a hollow tubular member having two open ends. A plate member must be bonded to the heat sink core member to close its one end so that the blocked end of the heat sink core member can be attached to the heat source or used to support an attached member during application. However, because the plate member and the heat sink core member are not made integrally, a capillary effect will occur, lowering the heat transfer performance.
- Therefore, it is desirable to provide a heat sink core member and its fabrication procedure that eliminates the drawbacks of the prior art designs and techniques.
- 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. Thus, radiation fins can easily be affixed to the vertical retaining grooves of the tubular body to form a high-performance heat sink.
- Using the heat sink core member fabrication procedure for making a heat sink core member of this application, the finished heat sink core member has a close end wall. As a result, the invention prevents a capillary effect, thus effectively facilitating heat transfer.
- In the heat sink core member fabrication procedure for making a heat sink core member of the present application, 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 ofFIG. 5 . -
FIG. 7 is a top view ofFIG. 5 . -
FIG. 8 illustrates a rectangular tubular body extruded according to the present invention. -
FIG. 9 is a sectional view ofFIG. 8 . -
FIG. 10 is a top view ofFIG. 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 ofFIG. 11 . -
FIG. 13 is a top view ofFIG. 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 ofFIG. 14 . -
FIG. 16 is a top view ofFIG. 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 toFIG. 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. - As described in
FIG. 1 , a predetermined mass of aluminum block 1 (seeFIG. 3 orFIG. 4 ) is extruded through an extruding machine into atubular body 10 having one close end wall 11 (seeFIGS. 5˜7 orFIGS. 8˜10 ), and then the outside wall of thetubular body 10 is punch-cut to form a plurality ofvertical retaining grooves 12 that are equally spaced around the periphery in a densely distributed manner (seeFIGS. 11˜13 orFIGS. 14˜16 ), and thus a heatsink core member 100 is obtained. Radiation fins 200 can then be fastened to theretaining grooves 12 of the heat sink core member 100 (seeFIG. 17 orFIG. 18 ) to form a heat sink 300 (seeFIG. 19 orFIG. 20 ). - The heat sink core member fabrication procedure includes the steps of:
-
- (1) preparing a predetermined mass of aluminum block 1;
- (2) extruding the aluminum block 1 through an extruding machine into a
tubular body 10 having oneclose end wall 11; and - (3) punch-cutting the outside wall of the
tubular body 10 to form a plurality of densely distributed and equally spaced vertical retaininggrooves 12.
- As described in
FIG. 2 , the step of punch-cutting the outside wall of thetubular 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 thetubular 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 retaininggroove 12. By means of performing one coarse punch-cutting substep, at least one fine punch-cutting substep and at least one superfine punch-cutting substep, the outside wall of thetubular body 10 is rapidly and efficiently processed to form the desired, densely distributed and equally spaced vertical retaininggrooves 12. These substeps are performed automatically for facilitating the fabrication and saving much the fabrication time and labor. - Further, during the extrusion step,
vertical ribs 13 are formed on the inside wall of the tubular body 10 (seeFIGS. 5˜7 orFIGS. 8˜10 ). Further, a hole-drilling step may be performed to make a mountinghole 14 on each vertical rib 13 (seeFIG. 11 orFIG. 14 ), for mounting of an attached member. One or more mounting holes may be formed in theclose end wall 11 of thetubular body 10 for the mounting of an attached member. - Further, the
tubular body 10 can be made in any of a variety of shapes and dimensions. For example, thetubular body 10 can be shaped like a round tube as shown inFIGS. 5˜7 . Alternatively, thetubular body 10 can be shaped like a rectangular tube as shown inFIGS. 8˜10 . - Further, the
radiation fins 200 to be fastened to thetubular body 10 can be made in any of a variety of shapes and sizes. However, theradiation fins 200 must be configured for press-fitting into or riveting to the vertical retaininggrooves 12. - Further, the vertical retaining
grooves 12 may be variously configured. Preferably, the outside wall of thetubular body 10 is so punch-cut that a first protrudingportion 121 and a second protrudingportion 122 are formed and disposed along two opposite lateral sides of each vertical retaininggroove 12. After oneradiation fin 200 is inserted into onevertical retaining groove 12, the adjacent first protrudingportion 121 is deformed in the direction toward the adjacent second protrudingportion 121 to have theradiation fin 200 be firmly seized in between the first protrudingportion 121 and the second protruding portion 122 (seeFIG. 18 ). - 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. Accordingly, the invention is not to be limited except as by the appended claims.
Claims (13)
1. A heat sink core member fabrication procedure, comprising the steps of:
(a) preparing a predetermined mass of aluminum block;
(b) extruding said aluminum block through an extruding machine into a tubular body having one close end wall; and
(c) punch-cutting the outside wall of said tubular body to form a plurality of densely distributed and equally spaced vertical retaining grooves.
2. The heat sink core member fabrication procedure as claimed in claim 1 , wherein said step (c) comprises a coarse punch-cutting substep to punch-cut the outside wall of said tubular body into a predetermined number of rough grooves, a fine punch-cutting substep to punch-cut each said rough groove into a fine groove, and a superfine punch-cutting substep to punch-cut each said fine groove.
3. The heat sink core member fabrication procedure as claimed in claim 1 , wherein said step (b) extrudes said aluminum block through an extruding machine into a tubular body having one close end wall and a plurality of vertical ribs on the inside wall thereof.
4. The heat sink core member fabrication procedure as claimed in claim 3 , further comprising a substep of making a plurality of mounting holes on said vertical ribs after said step (b) and before said step (c).
5. The heat sink core member fabrication procedure as claimed in claim 1 , further comprising a substep of making a plurality of mounting holes on said close end wall of said tubular body after said step (b) and before said step (c).
6. The heat sink core member fabrication procedure as claimed in claim 1 , wherein said tubular body is in a shape of a round tube.
7. The heat sink core member fabrication procedure as claimed in claim 1 , wherein said tubular body is in a shape of a rectangular tube.
8. A heat sink core member comprising a tubular body, a close end wall located on one end of said tubular body, and a plurality of vertical retaining grooves equally spaced around the periphery of said tubular body for the mounting of one radiation fin in each said vertical retaining groove.
9. The heat sink core member as claimed in claim 8 , wherein said tubular body comprises a plurality of first protruding portions and a plurality of second protruding portions respectively extending along said vertical retaining grooves at two opposite sides.
10. The heat sink core member as claimed in claim 8 , further comprising a plurality of vertical ribs axially formed on an inside wall of said tubular body and a mounting hole located on one end of each said vertical rib.
11. The heat sink core member as claimed in claim 8 , further comprising a plurality of mounting holes located on said close end wall.
12. The heat sink core member as claimed in claim 8 , wherein said tubular body is in a shape of a round tube.
13. The heat sink core member as claimed in claim 8 , wherein said tubular body is in a shape of a rectangular tube.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW099127906 | 2010-08-20 | ||
TW099127906A TW201043357A (en) | 2010-08-20 | 2010-08-20 | Core tube base for heat radiator and method for manufacturing the same |
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 (en) |
JP (1) | JP2012044129A (en) |
KR (1) | KR20120018039A (en) |
DE (2) | DE202010008604U1 (en) |
TW (1) | TW201043357A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130229071A1 (en) * | 2012-03-05 | 2013-09-05 | Johnson Electric S.A. | Electric motor |
CN103406737A (en) * | 2013-08-21 | 2013-11-27 | 安徽鸿路钢结构(集团)股份有限公司 | Double-angle tubular pillar assembling method |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102527758B (en) * | 2012-01-20 | 2014-12-03 | 东莞汉旭五金塑胶科技有限公司 | Extrusion moulding die for aluminum base of radiator and manufacture method thereof |
CN102699632B (en) * | 2012-06-04 | 2014-07-09 | 宁波安拓实业有限公司 | Process for manufacturing lining blank of damper |
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Publication number | Priority date | Publication date | Assignee | Title |
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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 (en) * | 1994-12-22 | 2003-10-06 | 昭和電工株式会社 | Manufacturing method of pin fin heat sink |
JP3597640B2 (en) * | 1996-05-24 | 2004-12-08 | 蛇の目ミシン工業株式会社 | Heat sink manufacturing method |
DE19636237A1 (en) * | 1996-06-21 | 1998-01-02 | Siemens Ag | Low-voltage circuit-breaker switching contact system |
JP2000083343A (en) * | 1998-09-03 | 2000-03-21 | Mitsubishi Electric Corp | Motor frame and manufacture thereof |
JP2004100021A (en) * | 2002-09-12 | 2004-04-02 | Kobe Steel Ltd | Steel product for cutting and component used for mechanical structure |
JP4015146B2 (en) * | 2004-10-12 | 2007-11-28 | 古河電気工業株式会社 | Heat sink with fins and method for manufacturing the same |
JP2010040996A (en) * | 2008-08-08 | 2010-02-18 | Furukawa Electric Co Ltd:The | Heat sink |
JP3158105U (en) * | 2009-11-26 | 2010-03-18 | 崇賢 ▲黄▼ | Electronic element heat dissipation structure |
-
2010
- 2010-08-20 TW TW099127906A patent/TW201043357A/en not_active IP Right Cessation
- 2010-09-08 JP JP2010200719A patent/JP2012044129A/en active Pending
- 2010-09-20 US US12/885,573 patent/US20120043067A1/en not_active Abandoned
- 2010-09-22 DE DE202010008604U patent/DE202010008604U1/en not_active Expired - Lifetime
- 2010-09-27 KR KR1020100093182A patent/KR20120018039A/en not_active Application Discontinuation
-
2011
- 2011-01-20 DE DE102011000230A patent/DE102011000230A1/en not_active Withdrawn
Patent Citations (10)
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)
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 (en) * | 2013-08-21 | 2013-11-27 | 安徽鸿路钢结构(集团)股份有限公司 | Double-angle tubular pillar assembling method |
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 |
---|---|
DE102011000230A1 (en) | 2012-02-23 |
TWI373385B (en) | 2012-10-01 |
DE202010008604U1 (en) | 2011-05-12 |
JP2012044129A (en) | 2012-03-01 |
TW201043357A (en) | 2010-12-16 |
KR20120018039A (en) | 2012-02-29 |
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