WO2006038927A1 - Cooling tube in electronic devices - Google Patents
Cooling tube in electronic devices Download PDFInfo
- Publication number
- WO2006038927A1 WO2006038927A1 PCT/US2005/021962 US2005021962W WO2006038927A1 WO 2006038927 A1 WO2006038927 A1 WO 2006038927A1 US 2005021962 W US2005021962 W US 2005021962W WO 2006038927 A1 WO2006038927 A1 WO 2006038927A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cross
- sectional shape
- cooling tube
- coolant
- wall
- Prior art date
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
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
-
- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
-
- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
-
- 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
- F28D2021/0031—Radiators for recooling a coolant of cooling systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/14—Safety or protection arrangements; Arrangements for preventing malfunction for preventing damage by freezing, e.g. for accommodating volume expansion
-
- 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 present invention relates to the field of electronics. More specifically, the present invention relates to reducing cooling tube bursts in electronic devices.
- BACKGROUND Components in electronic devices continue to get smaller and faster as more and more transistors are packed into each new generation of integrated circuit (IC) chip. These components can generate a great deal of heat, and the amount of heat tends to increase as the components get smaller and faster. In order to work properly, however, the components cannot get too hot.
- IC integrated circuit
- Fluid-cooled systems In the past, most electronic devices were entirely air-cooled with heat sinks and fans. But, fluid-cooled systems are being increasingly used. In a typical fluid-cooled system, a fluid coolant circulates through tubes among a heat exchanger and one or more components in an electronic device. The fluid can absorb heat from the component(s) and dissipate the heat at the heat exchanger. Fluid-cooled systems can provide a variety of advantages over air-cooled systems. For example, a fluid-cooled system may dissipate a great deal more heat than an air cooled system. And, a fluid-cooled system often allows more flexibility in the size and dimensions of electronic devices because a heat exchanger can be located remotely from heat-producing components, as opposed to heat sinks and fans which often need to be located in very close proximity to heat-producing components.
- Figure 1 illustrates one embodiment of an electronic device.
- Figure 2 illustrates one embodiment of a cooling tube.
- Figure 3 illustrates various embodiment of cooling tube cross-sections.
- Embodiments of the present invention can reduce the chances of tube bursts in electronic devices by using tubes with cross-sectional shapes that can be deformed into larger cross-sectional areas to accommodate coolant expansion due to freezing with little or no corresponding increase in the perimeter length of the cross-section .
- Figure 1 illustrates one embodiment of an electronic device 100 in which an embodiment of the present invention can be used.
- Electronic device 100 includes a printed circuit board (PCB) 110 to which a processor 120, a heat exchanger 130, and a pump 150 are attached.
- a fluid coolant can be circulated by pump 150 between processor 120 and heat exchanger 130 through cooling tubes 140.
- Electronic device 100 is intended to represent a wide variety of electronic devices including, for instance, desktop computers, laptop computers, tablet computers, personal data assistants (PDAs), telephones, and any other kind of electronic device in which fluid-cooling can be used.
- Processor 120 is intended to represent a wide variety of heat-producing electronic components for which fluid-cooling can be used, including, for instance, digital signal processors (DSPs), multi-core processors, and the like.
- Heat exchanger 130 is intended to represent any of a number of heat exchanging devices including, for instance, a radiator with a heat sink and/or fan.
- Other embodiments of electronic device 100 may include additional components, additional heat exchangers, and/or additional cooling tubes, and all of the components can be arranged and coupled in any of a variety of ways.
- the cooling tube could be a heat pipe. In which case, no pump would be needed because coolant can be circulated through a heat pipe by the heating and cooling the coolant itself.
- the fluid-cooling system could be a single- phase system. That is, the coolant may remain in a liquid form during normal operation. Alternately, the system could be a two-phase system in which the coolant is vaporized or partially vaporized in normal operation as it absorbs heat and is returned to liquid when it dissipates heat.
- Coolants that expand when frozen, however, such as water and certain liquid metals, can cause tube bursts in either kind of system. Tube bursts may be less common in two-phase systems because the liquid coolant usually does not completely fill the tubes, leaving room for expansion due to freezing. A single phase system tends to fill much more of the volume in the tubes, making expansion more problematic. But, even in a two-phase system, portions of a tube can be substantially filled with coolant. In which case, non-uniform freezing can trap the coolant and cause a burst.
- Both kinds of cooling systems may operate under varying amounts of pressure during normal circumstances as the average temperature of the coolant increases and decreases.
- the cooling tubes 140 are often fairly rigid to substantially maintain the overall volume of the cooling system during operation.
- the expansion pressure that can be exerted on the tubes as a coolant freezes can be considerably higher.
- Embodiments of the present invention can provide for this change in volume using tubes with non-circular cross-sections.
- the tubes can deform into larger cross-sectional forms under the high expansion pressures of freezing while still substantially maintaining the perimeter length of the tubing. This can result in an overall lower amount of stress in the tube wall upon freezing.
- Figure 2 illustrates one embodiment of an inventive cooling tube 140 in two different states.
- Tube 140 has a fluid channel 210 formed by wall 220.
- fluid channel 210 contains liquid coolant 240
- wall 22O is in a relaxed state 230, having an elliptical cross-sectional shape.
- fluid channel 210 is filled with frozen coolant 250
- wall 220 can deform into expanded state 260.
- wall 220 is substantially circular when in expanded state 260. Even if the perimeter of the cross-sectional shape does not change from state 230 to state 260, the area will increase as the cross- section becomes more circular. Assuming the coolant is water and the area can increase by at least 8%, cooling tube 140 may not burst due to freezing.
- Tube 140 can be made from any of a variety of materials including plastics and metals.
- the material may be rigid enough to maintain its shape under regular operating pressures, yet deform under the expansion pressure from freezing.
- wall 220 comprises an elastic material so that tube 140 can return to relaxed state 230 as the coolant melts. If the material deforms in the elastic regime, tube 140 may be able to transition between states many times without bursting.
- Figure 3 illustrates a few possibilities.
- the first cross-sectional shapes 310 on the left side are in the relaxed state, including square, rectangular, triangular, and trapezoidal cross-sections.
- the second cross- sectional shapes 320 on the right side illustrate how each shape may deform in the expanded state. In each case, the sides bulge out and the corners draw in, resulting in a overall increase from the relaxed area 350 to the expanded area 360, even if the relaxed perimeter remains substantially equal to the expanded perimeter.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007518208A JP2008503899A (en) | 2004-06-29 | 2005-06-20 | Cooling pipe in electronic equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/881,307 US20050284604A1 (en) | 2004-06-29 | 2004-06-29 | Reducing cooling tube bursts in electronic devices |
US10/881,307 | 2004-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006038927A1 true WO2006038927A1 (en) | 2006-04-13 |
Family
ID=35504344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/021962 WO2006038927A1 (en) | 2004-06-29 | 2005-06-20 | Cooling tube in electronic devices |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050284604A1 (en) |
JP (1) | JP2008503899A (en) |
KR (1) | KR20070027646A (en) |
CN (1) | CN1977379A (en) |
TW (1) | TW200604782A (en) |
WO (1) | WO2006038927A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111089222A (en) * | 2018-10-23 | 2020-05-01 | 成都毅诚机电工程有限公司 | PVC tubular product with heat preservation function |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090143844A1 (en) * | 2007-11-29 | 2009-06-04 | Gaymar Industries, Inc. | Hose management for convective devices |
WO2015088376A1 (en) * | 2013-12-13 | 2015-06-18 | Siemens Research Center Limited Liability Company | Device and method for heat transfer from semiconductor transistors |
US20180058777A1 (en) * | 2016-08-26 | 2018-03-01 | Intel Corporation | Heat exchanger puck |
US10939592B2 (en) * | 2019-06-14 | 2021-03-02 | Intel Corporation | Liquid cooling system with sub atmospheric pressure coolant |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030161100A1 (en) * | 2001-09-04 | 2003-08-28 | Yoshihiro Kondo | Electronic apparatus |
US20040070942A1 (en) * | 2002-08-30 | 2004-04-15 | Kabushiki Kaisha Toshiba | Electronic apparatus |
US20040104010A1 (en) * | 2002-11-01 | 2004-06-03 | Cooligy, Inc. | Interwoven manifolds for pressure drop reduction in microchannel heat exchangers |
US20040125561A1 (en) * | 2002-12-27 | 2004-07-01 | Gwin Paul J | Sealed and pressurized liquid cooling system for microprocessor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58211086A (en) * | 1982-05-31 | 1983-12-08 | 松下電工株式会社 | Water-conveyance pipe |
JPH06101523B2 (en) * | 1985-03-04 | 1994-12-12 | 株式会社日立製作所 | Integrated circuit chip cooling device |
JP2786193B2 (en) * | 1987-10-26 | 1998-08-13 | 株式会社日立製作所 | Semiconductor cooling device |
US4851856A (en) * | 1988-02-16 | 1989-07-25 | Westinghouse Electric Corp. | Flexible diaphragm cooling device for microwave antennas |
JPH031064A (en) * | 1989-05-29 | 1991-01-07 | Fujitsu Ltd | Freezing preventive control system of cooling device |
JP3658316B2 (en) * | 2000-12-19 | 2005-06-08 | 株式会社日立製作所 | COOLING METHOD, COOLING SYSTEM, AND INFORMATION PROCESSING DEVICE |
-
2004
- 2004-06-29 US US10/881,307 patent/US20050284604A1/en not_active Abandoned
-
2005
- 2005-06-20 WO PCT/US2005/021962 patent/WO2006038927A1/en active Application Filing
- 2005-06-20 KR KR1020067027697A patent/KR20070027646A/en not_active Application Discontinuation
- 2005-06-20 JP JP2007518208A patent/JP2008503899A/en active Pending
- 2005-06-20 CN CNA200580017477XA patent/CN1977379A/en active Pending
- 2005-06-27 TW TW094121500A patent/TW200604782A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030161100A1 (en) * | 2001-09-04 | 2003-08-28 | Yoshihiro Kondo | Electronic apparatus |
US20040070942A1 (en) * | 2002-08-30 | 2004-04-15 | Kabushiki Kaisha Toshiba | Electronic apparatus |
US20040104010A1 (en) * | 2002-11-01 | 2004-06-03 | Cooligy, Inc. | Interwoven manifolds for pressure drop reduction in microchannel heat exchangers |
US20040125561A1 (en) * | 2002-12-27 | 2004-07-01 | Gwin Paul J | Sealed and pressurized liquid cooling system for microprocessor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111089222A (en) * | 2018-10-23 | 2020-05-01 | 成都毅诚机电工程有限公司 | PVC tubular product with heat preservation function |
Also Published As
Publication number | Publication date |
---|---|
TW200604782A (en) | 2006-02-01 |
US20050284604A1 (en) | 2005-12-29 |
KR20070027646A (en) | 2007-03-09 |
CN1977379A (en) | 2007-06-06 |
JP2008503899A (en) | 2008-02-07 |
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