US20130056182A1 - Heat dissipation device - Google Patents
Heat dissipation device Download PDFInfo
- Publication number
- US20130056182A1 US20130056182A1 US13/456,240 US201213456240A US2013056182A1 US 20130056182 A1 US20130056182 A1 US 20130056182A1 US 201213456240 A US201213456240 A US 201213456240A US 2013056182 A1 US2013056182 A1 US 2013056182A1
- Authority
- US
- United States
- Prior art keywords
- air outlet
- fan
- fins
- fin
- dissipation device
- 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
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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
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
-
- 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
-
- 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
Definitions
- the disclosure relates to heat dissipation devices, and particularly to a heat dissipation device incorporating a fin assembly.
- a heat dissipation module is often applied to dissipate heat from heat generating components, such as central procession units (CPUs).
- a conventional heat dissipation module includes a centrifugal fan and a fin assembly arranged at an air outlet of the fan.
- the fan During operation, the fan generates airflow through the fin assembly to take away the heat of the fin assembly absorbed from the heat generating component.
- an amount of the airflow at two sides of the air outlet is larger than an amount of the airflow at a central portion of the air outlet, therefore, dust will deposit on two laterally sides of the fin assembly corresponding to the two sides of the fan along with the airflow.
- FIG. 1 is an assembled view of a heat dissipation device, according to an exemplary embodiment of the present disclosure.
- FIG. 2 is an exploded, isometric view of the heat dissipation device of FIG. 1 .
- FIG. 3 is an assembled, inverted view of a heat sink of the heat dissipation device of FIG. 2 .
- FIG. 4 is a top plan view of a fan and a heat sink of the heat dissipation device of FIG. 1 .
- FIGS. 1 and 2 show a heat dissipation device 100 in accordance with an exemplary embodiment.
- the heat dissipation device 100 includes a first heat absorbing substrate 10 , a second heat absorbing substrate 20 , a heat sink 30 , two first heat pipes 60 thermally interconnecting the first heat absorbing substrate 10 and the heat sink 30 , a second heat pipe 70 thermally interconnecting the second heat absorbing substrate 20 and the heat sink 30 , and a fan 80 arranged a lateral side of the heat sink 30 .
- the fan 80 is a centrifugal fan, which includes a holder 81 , a cover 83 engaged with the holder 81 to form a cavity, and an impeller 82 received in the cavity.
- the holder 81 includes a bottom plate 84 and a sidewall 85 perpendicularly and upwardly extending from a periphery of the bottom plate 84 .
- the cover 83 defines an air inlet 86 therein.
- the holder 81 defines an air outlet 87 between two ends of the sidewall 85 .
- a curved tongue portion 88 protrudes inwardly from the sidewall 85 , and is adjacent to the air outlet 87 .
- the first and second heat absorbing substrates 10 , 20 are made of metal which has a high thermal conductivity, such as copper, aluminum, or stainless steel.
- the first and second heat absorbing substrates 10 , 20 are respectively configured for contacting electronic elements and absorbing heat generated therefrom.
- the heat sink 30 is located at the air outlet 87 of the fan 80 , and the heat sink 30 has a first surface 32 towards the fan 80 and a second surface 33 away from the air outlet 87 of the fan 80 .
- the heat sink 30 defines a U-shaped through groove 31 at the first surface 32 to receive condensation portions of the first heat pipes 60 and the second heat pipe 70 .
- the heat sink 30 includes a first fin set 40 and two second fin sets 50 arranged at two opposite sides of the first fin set 40 .
- the first fin set 40 includes a plurality of first fins 42 stacked together. Each first fin 42 is parallel to and spaced from a neighboring first fin 42 . Each first fin 42 includes a first main body 420 and a pair of first flanges 422 bent horizontally from a top and a bottom of the first main body 420 . A first passage 43 is defined between the first main bodies 420 of each two neighboring first fins 42 for airflow generated by the fan 80 . An upper portion of the first main body 420 of each first fin 42 defines a cutout exposed to the air outlet 87 of the fan. The cutouts of the first fins 42 cooperatively define the through groove 31 .
- Each of the second fin sets 50 includes a plurality of second fins 52 .
- the second fins 52 of each of the second fin sets 50 are stacked together.
- the two second fin sets 50 sandwich the first fin set 40 therebetween.
- Each second fin 52 includes a second main body 520 and an extending portion 523 extending from the second main body 520 to the fan 80 .
- a pair of second flanges 522 are bent horizontally from a top and a bottom of each of the second main body 520 and the extending portion 523 .
- a second passage 53 is defined between each two neighboring second fins 52 for airflow generated by the fan 80 with a width the same as that of the second flange 522 .
- the second fins 52 are similar to the first fins 42 .
- each second fin 52 has an L-shaped side profile and each of the undercuts 54 is defined below the extending portions 523 and between the second main bodies 520 and the air outlet 87 of the fan 80 .
- Front ends of the extending portions 523 of the second fins 52 are parallel to the first surface 32 of the heat sink 30 .
- Front sides of the second main bodies 520 of the second fins 52 near the undercuts 54 is defined downwards and slantwise away from the fan 80 .
- a top portion of the heat sink 30 near the air outlet 87 of the fan 80 defines a notch for receiving an end portion of the cover 83 of the fan 80 .
- the first fin set 40 is arranged at a central portion 90 of the air outlet 87
- the second fin sets 50 are arranged at two laterally side portions 89 of the air outlet 87 of the fan 80 .
- Each of the undercuts 54 communicates with corresponding second portion 89 and corresponding second passage 53 .
- the impeller 82 of the fan 80 rotates and drives airflow from the air inlets 86 into the cavity, and then to the air outlet 87 .
- Air pressure in the two laterally side portions 89 of the air outlet 87 is larger than air pressure in the central portion 90 of the air outlet 87 , and the undercuts 54 of the second fin sets 50 correspond to the laterally side portions 89 of the air outlet 87 ; therefore, most dust enter the two laterally side portions 89 of the air outlet 87 , and vent from the undercuts 54 of the second fin sets 50 along with the airflow. Therefore, it can prevent dust from entering the heat sink 30 via the second passages 53 .
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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- 1. Technical Field
- The disclosure relates to heat dissipation devices, and particularly to a heat dissipation device incorporating a fin assembly.
- 2. Description of Related Art
- A heat dissipation module is often applied to dissipate heat from heat generating components, such as central procession units (CPUs). Generally, a conventional heat dissipation module includes a centrifugal fan and a fin assembly arranged at an air outlet of the fan.
- During operation, the fan generates airflow through the fin assembly to take away the heat of the fin assembly absorbed from the heat generating component. However, an amount of the airflow at two sides of the air outlet is larger than an amount of the airflow at a central portion of the air outlet, therefore, dust will deposit on two laterally sides of the fin assembly corresponding to the two sides of the fan along with the airflow.
- Thus, it is desired to overcome the described limitations.
-
FIG. 1 is an assembled view of a heat dissipation device, according to an exemplary embodiment of the present disclosure. -
FIG. 2 is an exploded, isometric view of the heat dissipation device ofFIG. 1 . -
FIG. 3 is an assembled, inverted view of a heat sink of the heat dissipation device ofFIG. 2 . -
FIG. 4 is a top plan view of a fan and a heat sink of the heat dissipation device ofFIG. 1 . -
FIGS. 1 and 2 show aheat dissipation device 100 in accordance with an exemplary embodiment. Theheat dissipation device 100 includes a firstheat absorbing substrate 10, a secondheat absorbing substrate 20, aheat sink 30, twofirst heat pipes 60 thermally interconnecting the firstheat absorbing substrate 10 and theheat sink 30, asecond heat pipe 70 thermally interconnecting the secondheat absorbing substrate 20 and theheat sink 30, and afan 80 arranged a lateral side of theheat sink 30. - In the present embodiment, the
fan 80 is a centrifugal fan, which includes aholder 81, acover 83 engaged with theholder 81 to form a cavity, and animpeller 82 received in the cavity. Theholder 81 includes abottom plate 84 and asidewall 85 perpendicularly and upwardly extending from a periphery of thebottom plate 84. Thecover 83 defines anair inlet 86 therein. Theholder 81 defines anair outlet 87 between two ends of thesidewall 85. Acurved tongue portion 88 protrudes inwardly from thesidewall 85, and is adjacent to theair outlet 87. - In the present embodiment, the first and second
heat absorbing substrates heat absorbing substrates - Also referring to
FIG. 3 , theheat sink 30 is located at theair outlet 87 of thefan 80, and theheat sink 30 has afirst surface 32 towards thefan 80 and asecond surface 33 away from theair outlet 87 of thefan 80. Theheat sink 30 defines a U-shaped throughgroove 31 at thefirst surface 32 to receive condensation portions of thefirst heat pipes 60 and thesecond heat pipe 70. Theheat sink 30 includes a first fin set 40 and twosecond fin sets 50 arranged at two opposite sides of the first fin set 40. - The
first fin set 40 includes a plurality offirst fins 42 stacked together. Eachfirst fin 42 is parallel to and spaced from a neighboringfirst fin 42. Eachfirst fin 42 includes a first main body 420 and a pair offirst flanges 422 bent horizontally from a top and a bottom of the first main body 420. Afirst passage 43 is defined between the first main bodies 420 of each two neighboringfirst fins 42 for airflow generated by thefan 80. An upper portion of the first main body 420 of eachfirst fin 42 defines a cutout exposed to theair outlet 87 of the fan. The cutouts of thefirst fins 42 cooperatively define the throughgroove 31. - Each of the
second fin sets 50 includes a plurality ofsecond fins 52. Thesecond fins 52 of each of thesecond fin sets 50 are stacked together. The two second fin sets 50 sandwich the first fin set 40 therebetween. Eachsecond fin 52 includes a secondmain body 520 and an extending portion 523 extending from the secondmain body 520 to thefan 80. A pair ofsecond flanges 522 are bent horizontally from a top and a bottom of each of the secondmain body 520 and the extending portion 523. A second passage 53 is defined between each two neighboringsecond fins 52 for airflow generated by thefan 80 with a width the same as that of thesecond flange 522. Thesecond fins 52 are similar to thefirst fins 42. The difference of eachsecond fin 52 from eachfirst fin 42 is that a lower portion of eachsecond fin 52 is cut to define an undercut 54, and theundercut 54 is near thefan 80 and communicates with thethrough groove 31 of theheat sink 30. In other words, each of thesecond fins 52 has an L-shaped side profile and each of theundercuts 54 is defined below the extending portions 523 and between the secondmain bodies 520 and theair outlet 87 of thefan 80. Front ends of the extending portions 523 of thesecond fins 52 are parallel to thefirst surface 32 of theheat sink 30. Front sides of the secondmain bodies 520 of thesecond fins 52 near theundercuts 54 is defined downwards and slantwise away from thefan 80. - In the present embodiment, a top portion of the
heat sink 30 near theair outlet 87 of thefan 80 defines a notch for receiving an end portion of thecover 83 of thefan 80. - Also referring to
FIG. 4 , in theheat dissipation device 100, thefirst fin set 40 is arranged at acentral portion 90 of theair outlet 87, and thesecond fin sets 50 are arranged at two laterallyside portions 89 of theair outlet 87 of thefan 80. Each of theundercuts 54 communicates with correspondingsecond portion 89 and corresponding second passage 53. During operation of theheat dissipation device 100, theimpeller 82 of thefan 80 rotates and drives airflow from theair inlets 86 into the cavity, and then to theair outlet 87. Air pressure in the two laterallyside portions 89 of theair outlet 87 is larger than air pressure in thecentral portion 90 of theair outlet 87, and theundercuts 54 of thesecond fin sets 50 correspond to thelaterally side portions 89 of theair outlet 87; therefore, most dust enter the twolaterally side portions 89 of theair outlet 87, and vent from theundercuts 54 of thesecond fin sets 50 along with the airflow. Therefore, it can prevent dust from entering theheat sink 30 via the second passages 53. - It is to be further understood that even though numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only; and that changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110260210.0A CN102984915B (en) | 2011-09-05 | 2011-09-05 | Heat abstractor |
CN201110260210.0 | 2011-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130056182A1 true US20130056182A1 (en) | 2013-03-07 |
Family
ID=47752225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/456,240 Abandoned US20130056182A1 (en) | 2011-09-05 | 2012-04-26 | Heat dissipation device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130056182A1 (en) |
CN (1) | CN102984915B (en) |
TW (1) | TWI510896B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130014918A1 (en) * | 2011-07-13 | 2013-01-17 | Foxconn Technology Co., Ltd. | Heat dissipation device |
EP3561429A3 (en) * | 2018-04-28 | 2019-11-13 | Cambricon Technologies Corporation Limited | Heat dissipation device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104214747B (en) * | 2013-05-29 | 2017-06-23 | 深圳市海洋王照明工程有限公司 | Radiator |
TWM525399U (en) | 2015-11-27 | 2016-07-11 | 宏碁股份有限公司 | Fan module and electronic device |
CN107023517B (en) * | 2016-02-02 | 2019-02-01 | 宏碁股份有限公司 | Blower module and electronic device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090044927A1 (en) * | 2007-08-17 | 2009-02-19 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Thermal module and fin unit thereof |
US7701719B2 (en) * | 2008-07-04 | 2010-04-20 | Foxconn Technology Co., Ltd. | Fastening device for thermal module |
US20100258276A1 (en) * | 2009-04-10 | 2010-10-14 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US7855889B2 (en) * | 2007-02-09 | 2010-12-21 | Foxconn Technology Co., Ltd. | Resilient fastener and thermal module incorporating the same |
US7990713B2 (en) * | 2009-03-31 | 2011-08-02 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device and method for manufacturing the same |
US8059410B2 (en) * | 2009-04-10 | 2011-11-15 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US8233277B2 (en) * | 2010-04-27 | 2012-07-31 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device with self-locking base |
US8804336B2 (en) * | 2011-05-16 | 2014-08-12 | Foxconn Technology Co., Ltd. | Heat disspating apparatus and electronic device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2741097Y (en) * | 2004-09-30 | 2005-11-16 | 仁宝电脑工业股份有限公司 | Radiator with dust-collecting mechanism |
TW200905457A (en) * | 2007-07-30 | 2009-02-01 | Inventec Corp | Heat-dissipating module |
JP2009076708A (en) * | 2007-09-21 | 2009-04-09 | Hitachi Ltd | Air cooling device |
JP4929214B2 (en) * | 2008-03-25 | 2012-05-09 | 株式会社東芝 | Cooling device and electronic apparatus having cooling device |
JP3143316U (en) * | 2008-05-07 | 2008-07-17 | 葉嘉銘 | Heat dissipation module |
CN101861076A (en) * | 2009-04-08 | 2010-10-13 | 鸿富锦精密工业(深圳)有限公司 | Heat radiating device |
JP2011233849A (en) * | 2010-04-30 | 2011-11-17 | Sony Corp | Cooling device, electronics and heat sink |
-
2011
- 2011-09-05 CN CN201110260210.0A patent/CN102984915B/en not_active Expired - Fee Related
- 2011-09-08 TW TW100132355A patent/TWI510896B/en not_active IP Right Cessation
-
2012
- 2012-04-26 US US13/456,240 patent/US20130056182A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7855889B2 (en) * | 2007-02-09 | 2010-12-21 | Foxconn Technology Co., Ltd. | Resilient fastener and thermal module incorporating the same |
US20090044927A1 (en) * | 2007-08-17 | 2009-02-19 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Thermal module and fin unit thereof |
US7701719B2 (en) * | 2008-07-04 | 2010-04-20 | Foxconn Technology Co., Ltd. | Fastening device for thermal module |
US7990713B2 (en) * | 2009-03-31 | 2011-08-02 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device and method for manufacturing the same |
US20100258276A1 (en) * | 2009-04-10 | 2010-10-14 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US8059410B2 (en) * | 2009-04-10 | 2011-11-15 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US8233277B2 (en) * | 2010-04-27 | 2012-07-31 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device with self-locking base |
US8804336B2 (en) * | 2011-05-16 | 2014-08-12 | Foxconn Technology Co., Ltd. | Heat disspating apparatus and electronic device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130014918A1 (en) * | 2011-07-13 | 2013-01-17 | Foxconn Technology Co., Ltd. | Heat dissipation device |
US9046306B2 (en) * | 2011-07-13 | 2015-06-02 | Foxconn Technology Co., Ltd. | Heat dissipation device |
EP3561429A3 (en) * | 2018-04-28 | 2019-11-13 | Cambricon Technologies Corporation Limited | Heat dissipation device |
Also Published As
Publication number | Publication date |
---|---|
CN102984915A (en) | 2013-03-20 |
CN102984915B (en) | 2016-11-23 |
TWI510896B (en) | 2015-12-01 |
TW201312328A (en) | 2013-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FOXCONN TECHNOLOGY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:XIA, BEN-FAN;HWANG, CHING-BAI;WANG, ZHEN-YU;REEL/FRAME:028108/0871 Effective date: 20120416 Owner name: FURUI PRECISE COMPONENT (KUNSHAN) CO., LTD., CHINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:XIA, BEN-FAN;HWANG, CHING-BAI;WANG, ZHEN-YU;REEL/FRAME:028108/0871 Effective date: 20120416 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |