Change Of Physical State Patents (Class 361/700)
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Patent number: 8797739Abstract: A self-circulating heat exchanger apparatus for dissipating heat from an electronic assembly. An enclosure defines a closed-loop circulation path for coolant. An electronic assembly capable of generating heat is installed into a vertical portion of the enclosure such that heat from the electronic assembly causes coolant in the vertical portion to rise, thereby inducing self-circulation of the coolant in the enclosure. The electronic assembly is coated with a combination of silicon nitride and PARYLENE® in order to protect electronic components from water based coolants such as a mixture of ethylene glycol and water.Type: GrantFiled: June 18, 2012Date of Patent: August 5, 2014Assignee: Delphi Technologies, Inc.Inventors: Scott D. Brandenburg, Suresh K. Chengalva
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Patent number: 8792235Abstract: According to one embodiment, a heat radiation block is pressed in contact with a heat receiving plate of an apparatus body, a heat receiving block receives its reaction force via a heat pipe and thus moves. A drawer section and the heat radiation block are fixed and held in the apparatus body after the movement of the heat receiving block.Type: GrantFiled: May 2, 2012Date of Patent: July 29, 2014Assignee: Toshiba Tec Kabushiki KaishaInventor: Kazuyuki Matsumura
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Patent number: 8792240Abstract: A heat dissipation device and a radio frequency module with the same are provided. The heat dissipation device includes a substrate (1). The substrate (1) having a surface where a heat absorbing surface (5) is formed. There are multiple hollow conduits inside the substrate (1) to act as evaporating conduits (6). The heat dissipation device further comprises condensing conduits (7) intercommunicated with the evaporating conduits (6). The evaporating conduits (6) and the condensing conduits (7) form sealed conduits. The sealed conduits are filled with liquid which vaporizes upon heating. At least the evaporating conduits (6) are set in the substrate (1).Type: GrantFiled: December 15, 2011Date of Patent: July 29, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Taqing Feng, Zhijian Li, Yuping Hong, Hongliang Chen, Jian Shi
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Patent number: 8792238Abstract: A heat-dissipating module having a loop-type vapor chamber includes a heat-dissipating body, a loop-type vapor chamber, and a heat-conducting medium. The loop-type vapor chamber is completely covered by the heat-dissipating body. The loop-type vapor chamber includes a loop body, a wick structure and a supporting structure. The loop body includes a bottom plate and a cover plate. A vacuum chamber is formed between the bottom plate and the cover plate. The wick structure is arranged on inner surfaces of the cover plate and the bottom plate. The supporting structure abuts the wick structure toward the cover plate and the bottom plate. The loop-type vapor chamber is tightly connected to the heat-dissipating body via the heat-conducting medium.Type: GrantFiled: February 3, 2012Date of Patent: July 29, 2014Assignee: Celsia Technologies Taiwan, Inc.Inventors: George Anthony Meyer, IV, Chien-Hung Sun, Chieh-Ping Chen, Yung-Tai Lu, Ming-Kuei Hsieh
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Patent number: 8792241Abstract: An assembly includes an electronic device casing, a heat-dissipating module and a waterproofing module. The electronic device casing is formed with an encircling wall. The encircling wall has a wall body and an apertured portion formed in the wall body. The heat-dissipating module is coupled to the electronic device casing, is surrounded by the encircling wall, and includes a heat pipe extending through the apertured portion. The waterproofing module includes a waterproofing element that has a ring portion disposed on a top rim of the wall body, and a sleeve portion having a first sleeve segment that is connected to the ring portion, that is sleeved on the heat pipe and that engages the apertured portion so as to establish water tightness between the heat pipe and the apertured portion.Type: GrantFiled: December 19, 2011Date of Patent: July 29, 2014Assignee: Wistron CorporationInventors: Po-Yuan Hsu, Wei-Cheng Wang, Chen-Yu Li, Hsing-Wang Chang, Tsung-Hsien Chen, Chia-Cheng Su
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Patent number: 8783333Abstract: A cooling system includes an evaporator assembly configured to thermally contact one or more memory modules and absorb thermal energy from the one or more memory modules. A condenser assembly is thermally coupled to the evaporative assembly and configured to receive and dissipate at least a portion of the thermal energy absorbed by the evaporative assembly.Type: GrantFiled: December 15, 2009Date of Patent: July 22, 2014Assignee: EMC CorporationInventors: John K. Bowman, Stephen J. Keefe
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Patent number: 8787015Abstract: A processing module is provided that comprises a set of processing module sides, each comprising a circuit board, a plurality of connectors coupled to the circuit board, and a plurality of processing nodes coupled to the circuit board. Each processing module side couples to another processing module side to form a modular processing module. The modular processing module comprises an exterior connection to a power source and a communication system and a plurality of cold plates coupled to the plurality of processing nodes. Liquid coolant is circulated through the plurality of cold plates via a closed loop by at least one pump through a plurality of tubes and through at least one heat exchanger. The at least one heat exchanger is coupled to an exterior portion of the processing module. The at least one heat exchanger cools the liquid coolant using air surrounding the processing module.Type: GrantFiled: March 30, 2012Date of Patent: July 22, 2014Assignee: International Business Machines CorporationInventors: Wael R. El-Essawy, Thomas W Keller, Jarrod A. Roy, Juan C. Rubio
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Patent number: 8780560Abstract: There is provided a loop heat pipe which includes an evaporator that internally includes at least one wick built, a condenser, a liquid pipe and a vapor pipe that connect the evaporator and the condenser to each other, and a heat dispersion cavity that is formed inside the evaporator, and disperses a vapor, wherein the wick includes, a first wick that is porous, a second wick that is porous, the second wick being inserted into the first wick from the liquid pipe side and including a pore size larger than the first wick, and a vapor channel that is defined between the first wick and the second wick. The vapor channel is connected at an end on the liquid pipe side to the heat dispersion cavity.Type: GrantFiled: August 6, 2012Date of Patent: July 15, 2014Assignee: Fujitsu LimitedInventors: Susumu Ogata, Hiroki Uchida, Seiji Hibino, Takeshi Shioga, Takahiro Kimura
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Patent number: 8780552Abstract: A computing system is provided. In the computing system, a plurality of modules physically arranged in a three dimensional hexadron configuration. In the computing system, the at least one module is either a liquid-tight module filled with a non-conductive liquid coolant or a module cooled with a liquid coolant circulating through cold plates mounted on electronic components. In the computing system, the liquid coolant is circulated in a closed loop by at least one pump through a plurality of hoses through at least one of a plurality of heat exchangers. In the computing system, the plurality of heat exchangers is coupled to an exterior portion of the surface of the computing system. In the computing system, the plurality of heat exchangers cool the liquid coolant through tinned tubes exposed to the surrounding air.Type: GrantFiled: March 30, 2012Date of Patent: July 15, 2014Assignee: International Business Machines CorporationInventors: Wael R El-Essawy, Thomas W Keller, Jarrod A. Roy, Juan C. Rubio
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Patent number: 8780559Abstract: An electrical device is described herein. The electrical device includes a housing that includes an inner surface that defines a cavity, a heat sink that is coupled to the housing and oriented along a first plane, and at least one electrical component positioned within the housing cavity and oriented along a second plane that is different than the first plane. A heat exchange assembly is coupled to the electrical component and the heat sink for adjusting a temperature of the electrical component. The heat exchange assembly includes an evaporator section, a condenser section, and a transport section extending between the evaporator section and the condenser section for channeling a working fluid between the evaporator section and the condenser section. The heat exchange assembly is configured to bend along at least one bending axis oriented with respect to the transport section.Type: GrantFiled: December 29, 2011Date of Patent: July 15, 2014Assignee: General Electric CompanyInventors: Stanton Earl Weaver, Jr., Tao Deng, Hendrik Pieter Jacobus de Bock, Shakti Singh Chauhan
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Publication number: 20140192485Abstract: Jet-impingement, two-phase cooling apparatuses and power electronics modules having a target surface with single- and two-phase surface enhancement features are disclosed. In one embodiment, a cooling apparatus includes a jet plate surface and a target layer. The jet plate surface includes a jet orifice having a jet orifice geometry, wherein the jet orifice is configured to generate an impingement jet of a coolant fluid. The target layer has a target surface, single-phase surface enhancement features, and two-phase surface enhancement features. The target surface is configured to receive the impingement jet, and the single-phase surface enhancement features and the two-phase enhancement features are arranged on the target surface according to the jet orifice geometry.Type: ApplicationFiled: December 30, 2013Publication date: July 10, 2014Applicants: PURDUE RESEARCH FOUNDATION, Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Matthew Joseph Rau, Ercan Mehmet Dede, Shailesh N. Joshi, Suresh V. Garimella
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Publication number: 20140192480Abstract: An improved electronic communications system 100 features a holder assembly 104 such as a mobile computing device dock station 106 and dock heat exchanger providing an external heat sink 162 which when coupled with a user-friendly heat transfer device 164 such as a heat pipe can transfer heat from internal electronic components 146, 148 and 154 and an internal heat sink 157 of an electronic communications device 102, such as a cellular phone or mobile computing device, via a special headset jack-heat pipe interface 167 to help cool the electronic communications device 102. The electronic communications device 102 can also include one or more thermal couplings 158-160 for coupling and providing a thermal pathway(s) from at least one of the internal electronic components 146, 148 and 154 to the internal heat sink 157.Type: ApplicationFiled: January 9, 2013Publication date: July 10, 2014Applicant: MOTOROLA MOBILITY LLCInventors: David A. Winkler, Morris B. Bowers, Maninder S. Sehmbey
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Patent number: 8773854Abstract: A thermosiphon system includes a condenser and an evaporator fluidically coupled to the condenser by a condensate line. The evaporator includes a housing having an opening to the condensate line, a wick located in the housing, and a flow restrictor located in the housing configured to restrict flow of a working fluid from the condensate line onto a portion of the wick.Type: GrantFiled: April 25, 2011Date of Patent: July 8, 2014Assignee: Google Inc.Inventors: Jeremy Rice, Bill Dailey, Jeffrey Spaulding
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Patent number: 8773855Abstract: A heat-dissipating device and an electronic apparatus having the same are disclosed. The heat-dissipating device includes a heat-transferring heat pipe unit having a wick type of a heat pipe, in which a wick is formed on an inner surface of the heat pipe and a working fluid is injected into the heat pipe, and a heat-dissipating heat pipe unit having an oscillating capillary type of a loop heat pipe, in which the loop heat pipe is formed as a capillary and a working fluid is injected into the loop heat pipe. Here, the heat pipe includes a radiator being disposed adjacent to a heat source and transporting heat transferred from the heat source to the loop heat pipe, and the loop heat pipe includes a heat-receiving portion, which is thermally coupled to the radiator, and a heat-dissipating portion, which releases heat absorbed from the heat-receiving portion.Type: GrantFiled: November 21, 2011Date of Patent: July 8, 2014Assignee: Zaonzi Co., Ltd.Inventor: Sang-Cheol Lee
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Patent number: 8760862Abstract: A portable electronic device, which including a casing, a circuit board, a fan and a heat dissipating device, is disclosed. The circuit board is disposed in the casing and includes at least one electronic component thereon. The fan is disposed in the casing. The heat dissipating device is disposed in the casing and near the side of an air outlet of the fan. Gaps formed between the outer surfaces of the heat dissipating device and the inner surfaces of the casing as air flow channels. The portable electronic device isolates heat conducted to the casing of the portable electronic device via the gaps.Type: GrantFiled: January 5, 2012Date of Patent: June 24, 2014Assignee: Asustek Computer Inc.Inventor: Cheng-Yu Wang
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Patent number: 8756810Abstract: A board-shaped heat dissipating device includes a board body having a plane face with a recess formed thereon, a heat conducting element fitted in the recess, at least one groove formed on any one of the board body and the heat conducting element, and at least one heat pipe pressed into the groove to flush with an open side of the groove. After the heat pipe is pressed into the groove and the heat conducting element is firmly fitted in the recess, portions of the heat conducting element that are higher than the plane face are removed through a cut operation, so that the heat conducting element is flush with the plane face of the board body to reduce the space occupied by the heat dissipating device. With the above arrangements, the problem of thermal resistance can be avoided and upgraded overall heat dissipation efficiency can be achieved.Type: GrantFiled: January 20, 2012Date of Patent: June 24, 2014Assignee: Asia Vital Components Co., Ltd.Inventors: Ping Chen, Shu-Chun Yu
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Publication number: 20140168896Abstract: According to one embodiment, an electronic apparatus includes a heating component, a housing, and a heat diffusing member. The housing accommodates the heating component and includes a wall. The wall includes a first region configured to receive heat from the component and a second region configured to have a lower temperature than a temperature of the first region. The heat diffusing member is attached to an inner surface of the wall and extends from the first region to the second region.Type: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Nobuto Fujiwara
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Patent number: 8755186Abstract: An economical heat pipe type cooling device with high performance and stable start at low environmental temperatures below 0° C., and a railcar control equipment using the invented heat pipe type cooling device are provided. The midsection between two bents formed on a heat pipe is used as an evaporator; lengths of two distal sections to be used as the condenser sections are intentionally differentiated each from the other; and the condenser section of greater length is provided with heat radiating fins more than those on the condenser section of shorter length. This configuration permits each of two condenser sections to be provided with mutually different condensing capacity and accordingly the condenser section of shorter length works to cool heat-generating elements even though the condenser section of greater length would suffer from freezing problem at low temperatures. A sufficient cooling effect is rendered at ordinary temperature.Type: GrantFiled: May 24, 2011Date of Patent: June 17, 2014Assignee: Hitachi Power Solutions Co., Ltd.Inventors: Hironori Kitajima, Hitoshi Sakayori, Yuuzou Shiraishi
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Publication number: 20140160680Abstract: An electronic device that has components is provided with a housing that defines an exterior and an interior of the electronic device. The housing includes a vapor port that prevents ingress of liquid through the vapor port from the exterior of the electronic device to the interior of the electronic device. The vapor port also permits egress of vapor through the vapor port from the interior of the electronic device to the exterior of the electronic device. The vapor port may include a breathable, but water-resistant or waterproof barrier to prevent water from entering through barrier while enabling water vapor to exit through the barrier and, thus, the vapor port.Type: ApplicationFiled: December 11, 2013Publication date: June 12, 2014Applicant: HzO, Inc.Inventor: Blake Stevens
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Publication number: 20140160679Abstract: A device may have: a frame section having a cage with a first receiving portion and a second receiving portion, the second receiving portion receiving a module; a first plate having an end, the first plate being received by the first receiving portion; a heat pipe having a first end attached to the end of the first plate and having a second end; a second plate attached to the second end of the heat pipe; and a spring attached to the first plate to bias the first plate against the module, the first plate being capable of receiving heat dissipated by the module, the heat pipe being capable of receiving the heat received by the first plate and transferring the heat to the second plate, the second plate receiving the heat transferred by the heat pipe and dissipating the received heat.Type: ApplicationFiled: December 11, 2012Publication date: June 12, 2014Applicant: Infinera CorporationInventor: Matthew J. KELTY
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Publication number: 20140153191Abstract: An electronic component and cooling system has a printed wiring board, which is planar. An electrical component is mounted on one side of the planar surface of the printed wiring board. A hood is positioned outwardly of the electronic component. Legs on the hood extend to the printed wiring board, and form an inner surface that is positioned away from the one side relative to the electrical component. A chassis has posts connected to the printed wiring board and on an opposed side of the planar surface of the printed wiring board from the electrical component. The chassis extends to a remote portion, beyond the printed wiring board. A heat pipe is generally elongate and positioned on an opposed side of the hood from the electrical component. The heat pipe extends to the remote portion of the chassis to transfer heat from the hood to the chassis.Type: ApplicationFiled: December 4, 2012Publication date: June 5, 2014Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Rachel Farner, Kenneth J. Trotman, Jay W. Kokas, Kerry R. Querns
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Patent number: 8743541Abstract: According to one embodiment, a display device includes a housing, a circuit board device, a fan, and a wall portion. The housing includes an exhaust port. The circuit board device is housed in the housing. The fan includes an ejection port and is housed in the housing at a position separated from the exhaust port. The fan sends cooling wind to between the circuit board device and the inner surface of the housing. The wall portion is located between the inner surface of the housing and the circuit board device, and constitutes a ventilation path from the ejection port to the exhaust port. The wall portion includes a first member located in the inner surface of the housing and a second member attached to the first member and abutting on the circuit board device. The second member has a rigidity lower than the rigidity of the first member.Type: GrantFiled: December 1, 2011Date of Patent: June 3, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Yukihiko Hata, Yasuyuki Horii
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Patent number: 8739405Abstract: An evaporator for a looped heat pipe (LHP) system, in which a working fluid circulates to cool heat generating electronic components that generate heat during operation, the evaporator including: a body comprising an inlet through which the working fluid enters and an outlet through which the working fluid is discharged; a sintered wick that is included in the body, wherein the sintered wick is formed by sintering a metal powder, and a plurality of pores are formed in the sintered wick; and an additional layer that is formed on a vaporization surface of the sintered wick where evaporation of the working fluid occurs, wherein a plurality of through holes are formed in the additional layer such that the working fluid changed into a vapor state passes through the additional layer after passing the sintered wick.Type: GrantFiled: November 23, 2011Date of Patent: June 3, 2014Assignee: Zalman Tech Co., Ltd.Inventors: Jee Hoon Choi, Jung Hyun Yoo, Byung Ho Sung, Yun Keun Lee, Min Whan Seo
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Patent number: 8739406Abstract: A method of fabricating a vapor condenser is provided which includes a three-dimensional folded structure which defines, at least in part, a set of coolant-carrying channels and a set of vapor condensing channels, with the coolant-carrying channels being interleaved with and extending parallel to the vapor condensing channels. The folded structure includes a thermally conductive sheet with multiple folds in the sheet. One side of the sheet is a vapor condensing surface, and the opposite side of the sheet is a coolant-cooled surface, with at least a portion of the coolant-cooled surface defining the coolant-carrying channels, and being in contact with coolant within the coolant-carrying channels. The vapor condenser further includes, in one embodiment, a top plate, and first and second end manifolds which are coupled to opposite ends of the folded structure and in fluid communication with the coolant-carrying channels to facilitate flow of coolant through the coolant-carrying channels.Type: GrantFiled: March 7, 2013Date of Patent: June 3, 2014Assignee: International Business Machines CorporationInventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons
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Publication number: 20140146468Abstract: A method of facilitating cooling of an electronics board having a plurality of electronic components mounted to the board by providing an apparatus which includes an immersion-cooled electronic component section and a conduction-cooled electronic component section. The immersion-cooled section includes an enclosure at least partially surrounding and forming a compartment about multiple electronic components of the electronic components mounted to the electronics board, and a fluid disposed within the compartment. The multiple electronic components are, at least in part, immersed within the fluid to facilitate immersion-cooling of those components. The conduction-cooled electronic component section includes at least one electronic component of the electronic components mounted to the electronics board, and the at least one electronic component is indirectly liquid-cooled, at least in part, via conduction of heat from the at least one electronic component.Type: ApplicationFiled: February 4, 2013Publication date: May 29, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Levi A. CAMPBELL, Richard C. CHU, Milnes P. DAVID, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Roger R. SCHMIDT, Robert E. SIMONS
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Publication number: 20140146467Abstract: A cooled electronic system and cooling method are provided, where an electronics board having a plurality of electronic components mounted to the board is cooled by an apparatus which includes an immersion-cooled electronic component section and a conduction-cooled electronic component section. The immersion-cooled section includes an enclosure at least partially surrounding and forming a compartment about multiple electronic components of the electronic components mounted to the electronics board, and a fluid disposed within the compartment. The multiple electronic components are, at least in part, immersed within the fluid to facilitate immersion-cooling of those components. The conduction-cooled electronic component section includes at least one electronic component of the electronic components mounted to the electronics board, and the at least one electronic component is indirectly liquid-cooled, at least in part, via conduction of heat from the at least one electronic component.Type: ApplicationFiled: November 26, 2012Publication date: May 29, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Levi A. CAMPBELL, Richard C. CHU, Milnes P. DAVID, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Roger R. SCHMIDT, Robert E. SIMONS
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Publication number: 20140146475Abstract: A planar heat pipe for removing heat from an electronic device. The heat pipe includes a planar portion defining a cool end of the heat pipe and a plate portion mounted to the electronic device and defining a hot end of the heat pipe. The heat pipe also includes a serpentine portion coupled to the planar portion and the plate portion, where each of the planar portion, the plate portion and the serpentine portion include an internal chamber being in fluid communication with each other and containing a working fluid. The serpentine portion can include a plurality of elements where each element is coupled to an adjacent element at substantially a 90° angle so as to allow the serpentine portion to flex in three-degrees of freedom.Type: ApplicationFiled: November 26, 2012Publication date: May 29, 2014Applicant: Northrop Grumman Systems CorporationInventors: Clint G. Buckman, Katrina M. Seitz, Christofer Bronnenberg
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Patent number: 8737072Abstract: A container data center includes a container. The container includes a top wall, two sidewalls, a first end wall, and a second end wall. Two elongated water troughs are arranged on the top of the container, near the sidewalls. The outer side plate of each water trough is lower than a top side of the corresponding inner side plate. A water receptacle is arranged near the first end plate. Pipes connect the water receptacle to the water troughs, to transfer the water in the water receptacle to the water troughs. When the water in the water troughs overflows, the water flows down the sidewalls of the container, to separate and thus protect the sidewalls from pollutants and humidity in the surrounding air.Type: GrantFiled: June 7, 2012Date of Patent: May 27, 2014Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Feng-Chi Yang
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Patent number: 8737071Abstract: A heat dissipation device is provided in the present disclosure, where the heat dissipation device includes a hollow heat-sink base and a set of fluid tube. The fluid tube is inserted in the heat-sink base, and a cooling medium circulates in the fluid tube. The heat-sink base includes a heat absorption area configured to absorb heat. A cooling fluid, received in the heat-sink base, may be vaporized at the heat absorption area to absorb the heat taken by the heat absorption area, and condensed at a position that is inside the heat-sink base and away from the heat absorption area and on the fluid tube to release the absorbed heat.Type: GrantFiled: December 28, 2011Date of Patent: May 27, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Mingliang Hao, Jun Zhao
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Publication number: 20140140006Abstract: Jet impingement and two-phase cooling apparatuses with sloped vapor outlet channels are disclosed. In one embodiment, a cooling apparatus includes a fluid inlet channel, a jet orifice surface having one or more jet orifices fluidly coupled to the fluid inlet channel such that coolant fluid within the fluid inlet channel flows through the one or more jet orifices as one or more impingement jets, and a target surface. The target surface and the jet orifice surface define an impingement chamber where the one or more impingement jets impinge the target surface at an impingement region such that at least some of the coolant fluid changes to a vapor. The cooling apparatus further includes a plurality of sloped vapor outlet channels that are fluidly coupled to the impingement chamber. Coolant fluid flows through the plurality of sloped vapor outlet channels after it impinges the target surface.Type: ApplicationFiled: November 21, 2012Publication date: May 22, 2014Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.Inventor: Toyota Motor Engineering & Manufacturing North America, Inc.
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Publication number: 20140133102Abstract: An electronic device assembly includes an electronic device, an internal heat dissipating mechanism, an external heat dissipating mechanism, and the heat dissipating mechanism. The electronic device includes a bottom base, and the internal heat dissipating mechanism is secured inside the bottom base, to dissipate heat generated by the electronic device. The external heat dissipating mechanism is secured outside the bottom base. The heat conduction block is secured to the internal heat dissipating mechanism and contacts with the external heat dissipating mechanism. The heat conduction block directs heat from the internal heat dissipating mechanism, and the external heat dissipating mechanism directs heat from the heat conduction block, to increase the heat dissipating efficiency of the internal heat dissipating mechanism, to make the electronic device work in a proper temperature.Type: ApplicationFiled: June 28, 2013Publication date: May 15, 2014Inventors: ER-WEI LU, XIANG-KUN ZENG, CHENG HAO
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Patent number: 8720530Abstract: In one aspect of the present invention, a multi-layer wick for a loop heat pipe is provided. The multi-layer wick includes a primary wick, the primary wick comprising: a first layer; and a second layer, wherein the first layer surrounds the second layer; and a secondary wick, wherein the second layer of the primary wick surrounds the secondary wick. In another aspect of the present invention, a method of fabricating a multi-layer wick is provided. The method includes machining the outer diameter of an inner layer larger than the inner diameter of an outer layer; heating the outer layer to enlarge the inner diameter; inserting the inner layer into the outer layer; and cooling the inner layer and the outer layer.Type: GrantFiled: May 17, 2006Date of Patent: May 13, 2014Assignee: The Boeing CompanyInventors: Julie Fatemeh Asfia, Qingjun Cai, Chung-Lung Chen
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Patent number: 8724323Abstract: A heat dissipation apparatus for an electronic component mounted in a casing of an electronic device includes a first heat sink attached to the component, a second heat sink located outside the casing, and a heat pipe connected between the first heat sink and the second heat sink. The heat pipe contacts the casing.Type: GrantFiled: December 26, 2011Date of Patent: May 13, 2014Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Yao-Ting Chang, Hung-Chou Chan
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Patent number: 8714302Abstract: Exemplary embodiments are directed to a cooling apparatus for cooling a power electronic device, the apparatus including at least one panel that is adapted to be thermally connected to a heat source in order to receive heat from the heat source. The panel is also adapted to be thermally in contact with an air flow in order to transfer heat from the panel. The panel includes at least one hole between a first side of the panel and a second side of the panel. The hole is adapted to attenuate a vibrating air pressure generated by an acoustic noise source and carried by the air.Type: GrantFiled: July 6, 2012Date of Patent: May 6, 2014Assignee: ABB Research LtdInventors: Thomas Gradinger, Francesco Agostini
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Patent number: 8717745Abstract: The method of the invention makes it possible to cool electrical switchgear operating at medium voltage and high current, such as a circuit breaker. The method consists in inserting serially two heat pipes (11) inside said switchgear, putting a first end (11A) of the first heat pipe (11) in the hot portion of the hot portions (10A, 10C) of the circuit breaker (10) and a second end (11B) of the first heat pipe (11) in a portion that is cooler (10A) of the hot portions (10A, 10C). The other heat pipe (11) is put between the cooler of the hot portions (10A) and a cooler part of the circuit breaker (10). A particular application is provided for medium-voltage, high-current circuit breakers.Type: GrantFiled: October 25, 2010Date of Patent: May 6, 2014Assignee: Alstom Technology LtdInventors: Denis Frigiere, Didier Rodrigues, Jean-Marc Willieme, Frank Jacquier
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Publication number: 20140118943Abstract: An electronic device includes a housing, a heat source in the housing, and a heat dissipation device in the housing and separated from the heat source by a distance. The heat dissipation device includes a casing. A heat dissipation material is disposed in the casing. The heat dissipation material includes 15 to 30 percent volume of multiple copper materials, 50 to 85 percent volume of a phase change material, and 15 to 20 percent volume of air. The heat dissipation device has a surface facing the heat source. A central area and an outer ring area are defined on the surface. The outer ring area surrounds the central area. A geometric midpoint of the central area overlaps that of the surface. An orthographic projection region on the surface is in the outer ring area. The heat dissipation device absorbs heat from the heat source through thermal radiation.Type: ApplicationFiled: March 12, 2013Publication date: May 1, 2014Applicants: INVENTEC CORPORATION, INVENTEC (PUDONG) TECHNOLOGY CORPORATIONInventors: Yi-Lun Cheng, Ming-Hung Lin, Chun-Lung Lin
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Publication number: 20140118942Abstract: An electronic device includes a housing, a heat source located in the housing, and a heat dissipation device disposed in the housing. The heat dissipation device thermally contacts the heat source. The heat dissipation device includes a casing. A heat dissipation material is disposed in the casing. The heat dissipation material includes 15 to 30 percent volume of multiple copper materials, 50 to 85 percent volume of a phase change material and 15 to 20 percent volume of air. The heat dissipation device has a surface thermally contacting the heat source. A central area and an outer ring area are defined on the surface. The outer ring area surrounds the central area. A geometric midpoint of the central area overlaps that of the surface. The heat source is located in the outer ring area. The heat dissipation device absorbs heat from the heat source through thermal conduction.Type: ApplicationFiled: March 12, 2013Publication date: May 1, 2014Applicants: INVENTEC CORPORATION, INVENTEC (PUDONG) TECHNOLOGY CORPORATIONInventors: Yi-Lun Cheng, Ming-Hung Lin, Chun-Lung Lin
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Patent number: 8711565Abstract: An electric power converter for a renewable power source includes at least one alternating current (AC) conduit coupled to an external AC power device and at least one direct current (DC) conduit coupled to an external DC power device. The converter also includes at least one immersion structure defining at least one immersion cavity therein and a plurality of semiconductor devices. The semiconductor devices include a substrate positioned within the immersion cavity. The substrate defines a plurality of heat transfer surfaces thereon. The semiconductor devices also include at least one semiconductor die coupled to the substrate, the AC conduit, and the DC conduit. The converter further includes a liquid at least partially filling the immersion cavity such that the semiconductor die is fully immersed in and in direct contact with the liquid. Heat generated in the semiconductor device induces a phase change in the liquid.Type: GrantFiled: November 2, 2011Date of Patent: April 29, 2014Assignee: General Electric CompanyInventors: Robert Gregory Wagoner, Paul Stephen Pate, Allen Michael Ritter
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Patent number: 8705236Abstract: A loop heat pipe includes: an evaporator to convert liquid phase working fluid into vapor phase working fluid; a condenser to convert vapor phase working fluid into liquid phase working fluid; a first vapor line and a first liquid line to allow the evaporator to communicate with the condenser and form a circular main loop; and a second vapor line and a second liquid line to allow the evaporator to communicate with the condenser and form a circular auxiliary loop; wherein the evaporator includes a reservoir that temporarily stores the liquid phase working fluid, a first vapor collector that communicates with the first vapor line, a second vapor collector that communicates with the second vapor line, first wick disposed between the reservoir and the first vapor collector, and second wick disposed between the reservoir and the second vapor collector.Type: GrantFiled: June 20, 2012Date of Patent: April 22, 2014Assignee: Fujitsu LimitedInventors: Hiroki Uchida, Susumu Ogata, Seiji Hibino, Jun Taniguchi
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Publication number: 20140104789Abstract: A chiller-less cooling system for cooling an interventional detector comprising a detector housing. The detector housing comprising a detector tray to which the detector is attached, a lift frame on which a driving mechanism is installed to lift up/down the detector housing, a connecting arm to connect the detector tray and the lift frame, and a cover. The cooling system comprising a heat pipes connecting the detector tray and the lift frame so as to reduce a thermal resistance between the detector tray and the lift frame and transfer more heat from the detector, an external heat sink connected with the heat pipe for reducing a thermal resistance between the lift frame and an ambient environment, and a high heat transfer coefficient device embedded into the detector tray for collecting heat leading to the heat pipe, obtaining a uniform temperature distribution, and reducing a thermal resistance of the detector tray.Type: ApplicationFiled: October 11, 2013Publication date: April 17, 2014Applicant: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLCInventors: Weihua Zhu, Qingming Peng
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Patent number: 8699227Abstract: The present invention relates to a device for transfer of heat energy in a well logging tool, where a variable heat flow from a chamber for electronics via a thermovalve is transmitted into a heat sink consisting of cooled metal, thereby establishing an approximately constant temperature in the chamber for electronics. The device comprises an electronics modular unit and a heat sink modular unit, which modular units are connected via an intermediate section, where a heat-regulating thermovalve provides heat conduction between a conical piston and a conical piston seat, for transferring heat energy.Type: GrantFiled: August 23, 2011Date of Patent: April 15, 2014Assignee: Norwegian Well Solutions ASInventor: Thomas Hovik
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Patent number: 8693197Abstract: The present invention provides a heat sink device, suitable to the heat dissipation of a high-power medium-voltage drive power cell. The device comprises a heat dissipation substrate having a first surface, a second surface and an inner layer between the first surface and the second surface; a heat pipe having an evaporation section and a condensation section. The evaporation section is buried in the inner layer of the heat dissipation substrate, and the condensation section is used to dissipate the heat from the evaporation section to the air. The power elements of the high-power medium-voltage drive power cell are disposed on the first surface and the second surface, respectively.Type: GrantFiled: January 2, 2012Date of Patent: April 8, 2014Assignee: Delta Electronics (Shanghai) Co., Ltd.Inventors: Ai-Xing Tong, Yu-Ming Chang, Hong-Jian Gan, Shao-Cai Ma, Jian-Ping Ying
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Publication number: 20140092559Abstract: A cooling device includes: a heat dissipating part disposed at an end of a heat transfer member; a heat-receiving plate disposed at the other end of the heat transfer member, provided opposite to a noise-generating part mounted on a circuit board, and thermally coupled to the noise-generating part; and a shielding unit disposed at the other end of the heat transfer member, the shielding unit covering the noise-generating part.Type: ApplicationFiled: June 7, 2013Publication date: April 3, 2014Inventors: Goki Yamaguchi, Sonomasa Kobayashi
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Publication number: 20140085822Abstract: Cooling apparatus and methods are provided for facilitating cooling of electronic components of an electronic system. The cooling apparatus includes a housing at least partially surrounding and forming a compartment about the components, and an immersion-cooling fluid is disposed within the compartment. At least one component of the electronic system is at least partially non-immersed within the fluid in the compartment. A wicking film element is physically coupled to a main surface of the at least one component and partially disposed within the fluid within the compartment. A coupling element physically couples the wicking film element to the main surface of the at least one component without the coupling element overlying the main surface of the component(s). As an enhancement, the wicking film element wraps over the component to physically couple to two opposite main sides of the component.Type: ApplicationFiled: September 26, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Levi A. CAMPBELL, Richard C. CHU, Milnes P. DAVID, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Roger R. SCHMIDT, Robert E. SIMONS
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Patent number: 8678075Abstract: Heat exchanger. The heat exchanger includes a thermal contact plate defining a cavity in fluid communication with a first pipe and a plurality of stationary elements substantially perpendicular to the first pipe each defining a cavity wherein each cavity is in fluid communication with the first pipe and at least one cavity includes a wick. A plurality of movable elements are provided wherein the movable elements and the stationary elements are substantially parallel, alternatingly arranged and a portion of the movable elements overlaps a portion of the stationary elements. A working fluid is provided in the first pipe and cavities or stationary elements and thermal contact plate.Type: GrantFiled: December 1, 2009Date of Patent: March 25, 2014Assignee: Massachusetts Institute of TechnologyInventors: Evelyn N. Wang, John G. Brisson, Stuart A. Jacobson, Jeffrey H. Lang, Matthew McCarthy
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Publication number: 20140078673Abstract: An electronics device and method for assembling a heat transfer assembly of the same. An electronics device includes a circuit board, a chassis that houses the circuit board, a heat pipe configured to transfer heat from the circuit board to a wall of the chassis, and a brace configured to press the heat pipe against the wall. A brace includes a medial portion configured to contact a heat pipe and an end portion including a protrusion that is configured to be received in a depression of a chassis.Type: ApplicationFiled: September 19, 2012Publication date: March 20, 2014Applicant: General Electric CompanyInventor: Laith Anthony Vincent
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Publication number: 20140078674Abstract: Apparatus and method are provided for facilitating cooling of an electronic component. The apparatus includes a liquid-cooled cold plate and a thermal spreader associated with the cold plate. The cold plate includes multiple coolant-carrying channel sections extending within the cold plate, and a thermal conduction surface with a larger surface area than a surface area of the component to be cooled. The thermal spreader includes one or more heat pipes including multiple heat pipe sections. One or more heat pipe sections are partially aligned to a first region of the cold plate, that is, where aligned to the surface to be cooled, and partially aligned to a second region of the cold plate, which is outside the first region. The one or more heat pipes facilitate distribution of heat from the electronic component to coolant-carrying channel sections of the cold plate located in the second region of the cold plate.Type: ApplicationFiled: November 21, 2013Publication date: March 20, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Timothy J. CHAINER, David P. GRAYBILL, Madhusudan K. IYENGAR, Vinod KAMATH, Bejoy J. KOCHUPARAMBIL, Roger R. SCHMIDT, Mark E. STEINKE
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Publication number: 20140078675Abstract: Apparatus and method are provided for facilitating cooling of an electronic component. The apparatus includes a liquid-cooled cold plate and a thermal spreader associated with the cold plate. The cold plate includes multiple coolant-carrying channel sections extending within the cold plate, and a thermal conduction surface with a larger surface area than a surface area of the component to be cooled. The thermal spreader includes one or more heat pipes including multiple heat pipe sections. One or more heat pipe sections are partially aligned to a first region of the cold plate, that is, where aligned to the surface to be cooled, and partially aligned to a second region of the cold plate, which is outside the first region. The one or more heat pipes facilitate distribution of heat from the electronic component to coolant-carrying channel sections of the cold plate located in the second region of the cold plate.Type: ApplicationFiled: November 21, 2013Publication date: March 20, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Timothy J. CHAINER, David P. GRAYBILL, Madhusudan K. IYENGAR, Vinod KAMATH, Bejoy J. KOCHUPARAMBIL, Roger R. SCHMIDT, Mark E. STEINKE
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Patent number: 8671570Abstract: The vapor chamber is used in an electronic device. The electronic device includes a metal casing. The vapor chamber includes an upper cover, a working fluid, a waterproof layer, and a wick structure layer. The upper cover is disposed on inner walls of the metal casing to define a containing space. The working fluid is filled into the containing space. The waterproof layer is formed on inner walls of the containing space. The wick structure layer is formed on the waterproof layer.Type: GrantFiled: October 25, 2010Date of Patent: March 18, 2014Assignee: Pegatron CorporationInventors: Juei-Khai Liu, Chao-Tsai Chung
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Publication number: 20140071626Abstract: A vapor condenser is provided which includes a three-dimensional folded structure which defines, at least in part, a set of coolant-carrying channels and a set of vapor condensing channels, with the coolant-carrying channels being interleaved with and extending parallel to the vapor condensing channels. The folded structure includes a thermally conductive sheet with multiple folds in the sheet. One side of the sheet is a vapor condensing surface, and the opposite side of the sheet is a coolant-cooled surface, with at least a portion of the coolant-cooled surface defining the coolant-carrying channels, and being in contact with coolant within the coolant-carrying channels. The vapor condenser further includes, in one embodiment, a top plate, and first and second end manifolds which are coupled to opposite ends of the folded structure and in fluid communication with the coolant-carrying channels to facilitate flow of coolant through the coolant-carrying channels.Type: ApplicationFiled: September 13, 2012Publication date: March 13, 2014Applicant: International Business Machines CorporationInventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, JR., Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons