GB2377321A - CPU cooling structure with a ventilation hood - Google Patents
CPU cooling structure with a ventilation hood Download PDFInfo
- Publication number
- GB2377321A GB2377321A GB0116462A GB0116462A GB2377321A GB 2377321 A GB2377321 A GB 2377321A GB 0116462 A GB0116462 A GB 0116462A GB 0116462 A GB0116462 A GB 0116462A GB 2377321 A GB2377321 A GB 2377321A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heat sink
- conical
- hood shell
- hood
- shell
- 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.)
- Granted
Links
Classifications
-
- 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
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
A CPU cooling structure includes a ventilation hood 1 mounted in between a heat sink 3 and a cooling fan 2, the ventilation hood 1 having a conical outer hood shell 12 and a conical inner hood shell 13 concentrically formed integral with a flat mounting base 11 thereof and fitted into a conical top receiving space of the heat sink 3, and radial partition ribs 14 connected between the conical outer hood shell 12 and the conical inner hood shell 13 defining multiple wind passages 15 adapted to guide currents of air from the cooling fan 2 downwards toward the center of the heat sink 3. The ventilation hood enhances the cooling efficiency of the structure.
Description
237732 1
CPU COOLING STRUCTURE WITH
A VENTILATION HOOD
The present invention relates to a CPU cooling structure and, more 5 particularly, to such a CPU cooling structure, which comprises a heat sink, a cooling fan mounted on the heat sink at the top, and a ventilation hood suspended from the bottom side of the cooling fan and fitted into a conical receiving space in the heat sink to guide downward currents of air from the cooling fan toward the center area of the heat sink to quick 10 dissipate heat energy from the heat sink.
Conventional heat sinks for CPU commonly have upright radiation fins disposed at the top for dissipation of heat energy transmitted from the CPU below. The formation of the upright radiation fins is complicated, 15 resulting in high cost. When a heat sink is used, a cooling fan is matched and mounted on the upright radiation fins of the heat sink. When started, the cooling fan causes upward currents of air to carry heat energy from the heat sinlc. Because cooling currents of air flow from the bottom side toward the top side, heat energy tends to be accumulated at the center 20 area of the CPU. Therefore, the cooling efficiency of conventional heat sinks is low.
The present invention has been accomplished to provide a CPU cooling structure, which eliminates the aforesaid drawbacks. According to one aspect of the present invention, the CPU cooling structure comprises a heat sink, a cooling fan, and a ventilation hood adapted to guide currents 5 of air downwards from the cooling fan toward the center of the heat sink, enabling heat energy to be quickly dissipated carried away from the heat sink. According to another aspect of the present invention, the ventilation hood comprises a flat mounting base, a conical outer hood shell and a conical inner hood shell concentrically formed integral with a bottom 10 surface of the flat mounting base and fitted into a conical top receiving space of the heat sink, and radial partition ribs connected between the conical outer hood shell and the conical inner hood shell and separating the space between the conical outer hood shell and the conical inner hood shell into multiple wind passages adapted to guide currents of air from the 15 cooling fan downwards toward the center of the heat sink.
The invention will now be further described, by way of example, with reference to the drawings in which: 20 FIG. l is an elevational view of a ventilation hood for a CPU cooling structure according to the present invention;
FIG. 2 is a bottom plain view of the ventilation hood shown in FIG. 1; FIG. 3 is a top plain view of the ventilation hood shown in FIG. 1; 5 FIG. 4 is an elevational view of the CPU cooling structure according to the present invention; FIG. 5 is an exploded view of the CPU cooling structure according to the present invention; and FIG. 6 is a sectional view showing the flowing direction of currents of air according to the present invention.
Referring to FIGS. From 1 through 6, a CPU cooling structure in 15 accordance with the present invention is generally comprised of a ventilation hood 1, a cooling fan 2, and a heat sink 3. The cooling fan 2 is supported above the heat sink 3. The ventilation hood 1 is fitted into the heat sink 3 and supported between the heat sink 3 and the cooling fan 2.
0 The heat sink 3 comprises a plurality of radially extended upright radiation fins 31, and a plurality of top mounting holes 32. The upright radiation fins 31 have a respective curved top edge, defining a conical
receiving space at the center of the top side of the heat sink 3. The ventilation hood 1 comprises a flat mounting base 11, a conical outer hood shell 12 and a conical inner hood shell 13 concentrically formed integral with the bottom surface of the flat mounting base 11 and fitted 5 into the conical receiving space defined by the curved top edge of each of the upright radiation fins 31, and radial partition ribs 14 connected between the conical outer hood shell 12 and the conical inner hood shell 13 and separating the holding space between the conical outer hood shell 12 and the conical inner hood shell 13 into separated wind passages IS.
10 The conical inner hood shell 13 has an inner diameter gradually downwardly reduced from the flat mounting base 11. The radial partition ribs 14 also reinforce the structural strength of the ventilation hood 1. The fat mounting base 11 comprises a plurality of mounting holes 111 disposed in the four corners thereof and respectively connected between 15 the respective mounting holes 21 of the cooling fan 2 and the respective mounting holes 32 of the heat sink 3 by fastening elements, for example, screws 4.
During the operation of the cooling fan 2, currents of air flow downwards 20 through the wind passages 15 toward the center area of the heat sink 3, and then flow out of the heat sink 3 radially through the gaps in between the upright radiation fins 31 of the heat sink 3 to carry heat energy away
from the heat sink 3 efficiently. Because the outer hood shell 12 and inner hood shell 13 have a conical shape, the ventilation hood 1 effectively prevents reverse flow of air.
5 A prototype of CPU cooling structure has been constructed with the features of FIGS. 1 6. The CPU cooling structure functions smoothly to provide all of the features discussed earlier.
Although a particular embodiment of the invention has been described in 10 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 (2)
- A CPU cooling structure comprising a heat sink, a cooling fan, and a ventilation hood, wherein said ventilation 5 hood comprises a flat mounting base fixedly connected between said heat sink and said cooling fan by fastening elements, a conical outer hood shell and a conical inner hood shell concentrically formed integral with a bottom surface of said flat mounting base and inserted into said heat sink, and 10 radial partition ribs connected between said conical outer hood shell and said conical inner hood shell, and wind passages defined within said conical outer hood shell outside said conical inner hood shell and separated from one another by said partition rids and adapted to guide currents of air 15 downwards from said cooling fan toward said heat sink, said conical inner hood shell having an inner diameter gradually downwardly reduced from said flat mounting base toward said heat sink.20 2. The CPU cooling structure of claim 1 wherein said heat sink comprises a plurality of radially extended upright radiation fins, said upright radiation fins having a respective curved top edge defining aconical receiving space at the center of a top side of said heat sink for receiving the conical outer hood shell and conical inner hood shell of said ventilation hood.5 3. The CPU cooling structure substantially as hereinbefore described with reference to and as illustrated in Figs. 1 to 6 of the drawings.Amendments to the claims have been filed as follows 5 1. A CPU cooling structure comprising a heat sink, a cooling fan and a ventilation hood, wherein said ventilation hood comprises a flat mounting base fixedly connected between said heat sink and said cooling fan by fastening elements, a conical outer hood shell and a conical inner hood shell concentrically formed integral with a bottom surface of said flat mounting base and inserted into lo said heat sink, and radial partition ribs connected between said conical outer hood shell and said conical inner hood shell, and wind passages defined within said conical outer hood shell outside said conical inner hood shell and separated from one another by said partition ribs and adapted to guide currents of air downwards from said cooling fan toward said heat sink, said conical inner hood shell having 5 an inner diameter gradually downwardly reduced from said flat mounting base ! toward said heat sink'-wherein said heat sink comprises a plurality of radially extended upright radiation fins, said upright radiation fins having a respective curved top edge defining a conical receiving space at the center of a top side of said heat sink for receiving the conical outer hood shell and conical inner hood ,. 20 shell of said ventilation hoodJ/whereby the ventilation hood can be accommodated at least partially between said radiation fins so that the overall height of the CPU cooling structure can be reduced.
- 2. A CPLJ cooling structure substantially as hereinbefore described with 25 reference to and as illustrated in FIGS. 1 to 6 of the drawings.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/898,052 US20030007867A1 (en) | 2001-07-05 | 2001-07-05 | CPU cooling structure with a ventilation hood |
GB0116462A GB2377321B (en) | 2001-07-05 | 2001-07-05 | CPU cooling structure with a ventilation hood |
DE20111953U DE20111953U1 (en) | 2001-07-05 | 2001-07-18 | CPU cooler with an air collection part |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/898,052 US20030007867A1 (en) | 2001-07-05 | 2001-07-05 | CPU cooling structure with a ventilation hood |
GB0116462A GB2377321B (en) | 2001-07-05 | 2001-07-05 | CPU cooling structure with a ventilation hood |
DE20111953U DE20111953U1 (en) | 2001-07-05 | 2001-07-18 | CPU cooler with an air collection part |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0116462D0 GB0116462D0 (en) | 2001-08-29 |
GB2377321A true GB2377321A (en) | 2003-01-08 |
GB2377321B GB2377321B (en) | 2003-06-11 |
Family
ID=27219594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0116462A Expired - Fee Related GB2377321B (en) | 2001-07-05 | 2001-07-05 | CPU cooling structure with a ventilation hood |
Country Status (3)
Country | Link |
---|---|
US (1) | US20030007867A1 (en) |
DE (1) | DE20111953U1 (en) |
GB (1) | GB2377321B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2379249B (en) * | 2001-08-29 | 2006-03-08 | Sunonwealth Electr Mach Ind Co | Supercharging structure for a fan |
US8295046B2 (en) | 2010-07-19 | 2012-10-23 | Hamilton Sundstrand Corporation | Non-circular radial heat sink |
US9140502B2 (en) | 2010-07-08 | 2015-09-22 | Hamilton Sundstrand Corporation | Active structures for heat exchanger |
US10103089B2 (en) | 2010-03-26 | 2018-10-16 | Hamilton Sundstrand Corporation | Heat transfer device with fins defining air flow channels |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7539017B2 (en) * | 2003-03-27 | 2009-05-26 | Kuo Ta Chang | Heat dissipating device for central processor |
US6924980B2 (en) * | 2003-06-27 | 2005-08-02 | International Business Machines Corporation | Vibration isolation of computing device heat sink fans from attached fan shrouds and heat sinks |
US7059388B2 (en) * | 2003-12-19 | 2006-06-13 | Kuo Ta Chang | Heat dissipating device |
US7120019B2 (en) * | 2004-08-18 | 2006-10-10 | International Business Machines Corporation | Coaxial air ducts and fans for cooling and electronic component |
CN2727964Y (en) * | 2004-09-17 | 2005-09-21 | 鸿富锦精密工业(深圳)有限公司 | Radiator |
US20060093476A1 (en) * | 2004-10-29 | 2006-05-04 | Stanley Gavin D | Fan stator |
US20060098414A1 (en) * | 2004-11-10 | 2006-05-11 | Meng-Cheng Huang | Heat sink |
TWI268995B (en) * | 2004-12-24 | 2006-12-21 | Foxconn Tech Co Ltd | Fan duct device |
TWI281849B (en) * | 2005-04-22 | 2007-05-21 | Delta Electronics Inc | Fan module and fan duct thereof |
KR100719702B1 (en) * | 2005-05-25 | 2007-05-17 | 삼성에스디아이 주식회사 | Plasma Display Device |
KR101249841B1 (en) * | 2005-10-07 | 2013-04-02 | 삼성전자주식회사 | Axial fan assembly |
US7907403B2 (en) * | 2005-10-25 | 2011-03-15 | Hewlett-Packard Development Company, L.P. | Active heat sink with multiple fans |
TW200721957A (en) * | 2005-11-29 | 2007-06-01 | Sunonwealth Electr Mach Ind Co | Improvement in fixing seat of heat-dissipating module |
TWI308050B (en) * | 2006-02-14 | 2009-03-21 | Asustek Comp Inc | Heat-sink with slant fins |
JP2007281100A (en) * | 2006-04-04 | 2007-10-25 | Nippon Densan Corp | Heat-sink fan unit |
US7947218B2 (en) * | 2006-06-08 | 2011-05-24 | Novelis Inc. | Apparatus and method for coil cooling |
US20080107524A1 (en) * | 2006-11-03 | 2008-05-08 | Bor-Haw Chang | Fan device capable of increasing air pressure and air supply |
TW200919165A (en) * | 2007-10-17 | 2009-05-01 | liang-he Chen | Turbo-guiding type cooling apparatus |
CN101452328A (en) * | 2007-12-03 | 2009-06-10 | 鸿富锦精密工业(深圳)有限公司 | Computer radiator |
CN101605444A (en) * | 2008-06-13 | 2009-12-16 | 富准精密工业(深圳)有限公司 | Heat abstractor |
CN101965117B (en) * | 2009-07-22 | 2015-03-18 | 赛恩倍吉科技顾问(深圳)有限公司 | Radiator |
CN102566718A (en) * | 2010-12-30 | 2012-07-11 | 鸿富锦精密工业(深圳)有限公司 | Fan module |
TWI404496B (en) * | 2010-12-31 | 2013-08-01 | Delta Electronics Inc | Heat dissipation device |
CN102536852B (en) * | 2010-12-31 | 2015-04-01 | 台达电子工业股份有限公司 | Radiator |
US20130064679A1 (en) * | 2011-09-14 | 2013-03-14 | Yi-Yi Tsai | Fan grill for a mosquito trap |
US10081250B2 (en) * | 2014-12-15 | 2018-09-25 | Dayton-Phoenix Group, Inc. | Cooling fan vane assembly for a resistor grid |
EP3708841B1 (en) * | 2019-03-12 | 2022-08-24 | VITRONIC Dr.-Ing. Stein Bildverarbeitungssysteme GmbH | Device for cooling heat-radiating components |
EP4139575A1 (en) * | 2020-04-23 | 2023-03-01 | Clark Equipment Company | Identification and reduction of backflow suction in cooling systems |
US11686536B2 (en) * | 2021-02-09 | 2023-06-27 | Raytheon Technologies Corporation | Three-dimensional diffuser-fin heat sink with integrated blower |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5019880A (en) * | 1988-01-07 | 1991-05-28 | Prime Computer, Inc. | Heat sink apparatus |
JPH08316389A (en) * | 1995-05-24 | 1996-11-29 | Sumitomo Metal Ind Ltd | Heat sink cooler |
US5661638A (en) * | 1995-11-03 | 1997-08-26 | Silicon Graphics, Inc. | High performance spiral heat sink |
JPH11307703A (en) * | 1998-04-17 | 1999-11-05 | Mitsubishi Electric Corp | Element cooling device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2047576C (en) * | 1991-04-03 | 2002-09-10 | Robert Alan Colwell | Draft inducer blower motor mounting and cooling construction |
US5630469A (en) * | 1995-07-11 | 1997-05-20 | International Business Machines Corporation | Cooling apparatus for electronic chips |
DE29801275U1 (en) * | 1998-01-27 | 1998-05-07 | Wang Daniel | Cooling device for a central processing unit |
US6170563B1 (en) * | 1999-07-26 | 2001-01-09 | Hsieh Hsin-Mao | Heat radiating device for notebook computer |
US6219242B1 (en) * | 1999-10-21 | 2001-04-17 | Raul Martinez | Apparatus for cooling a heat producing member |
-
2001
- 2001-07-05 GB GB0116462A patent/GB2377321B/en not_active Expired - Fee Related
- 2001-07-05 US US09/898,052 patent/US20030007867A1/en not_active Abandoned
- 2001-07-18 DE DE20111953U patent/DE20111953U1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5019880A (en) * | 1988-01-07 | 1991-05-28 | Prime Computer, Inc. | Heat sink apparatus |
JPH08316389A (en) * | 1995-05-24 | 1996-11-29 | Sumitomo Metal Ind Ltd | Heat sink cooler |
US5661638A (en) * | 1995-11-03 | 1997-08-26 | Silicon Graphics, Inc. | High performance spiral heat sink |
JPH11307703A (en) * | 1998-04-17 | 1999-11-05 | Mitsubishi Electric Corp | Element cooling device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2379249B (en) * | 2001-08-29 | 2006-03-08 | Sunonwealth Electr Mach Ind Co | Supercharging structure for a fan |
US10103089B2 (en) | 2010-03-26 | 2018-10-16 | Hamilton Sundstrand Corporation | Heat transfer device with fins defining air flow channels |
US11024558B2 (en) | 2010-03-26 | 2021-06-01 | Hamilton Sundstrand Corporation | Heat transfer device with fins defining air flow channels |
US9140502B2 (en) | 2010-07-08 | 2015-09-22 | Hamilton Sundstrand Corporation | Active structures for heat exchanger |
US8295046B2 (en) | 2010-07-19 | 2012-10-23 | Hamilton Sundstrand Corporation | Non-circular radial heat sink |
Also Published As
Publication number | Publication date |
---|---|
US20030007867A1 (en) | 2003-01-09 |
GB2377321B (en) | 2003-06-11 |
GB0116462D0 (en) | 2001-08-29 |
DE20111953U1 (en) | 2001-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20050705 |