US20100307720A1 - Heat pipe - Google Patents

Heat pipe Download PDF

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Publication number
US20100307720A1
US20100307720A1 US12/549,389 US54938909A US2010307720A1 US 20100307720 A1 US20100307720 A1 US 20100307720A1 US 54938909 A US54938909 A US 54938909A US 2010307720 A1 US2010307720 A1 US 2010307720A1
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US
United States
Prior art keywords
casing
heat pipe
supporting member
sealing portion
shrinkage
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
Application number
US12/549,389
Inventor
Jin-Peng Liu
Yue Liu
Sheng-Liang Dai
Sheng-Lin Wu
Yu-Liang Lo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furui Precise Component Kunshan Co Ltd
Foxconn Technology Co Ltd
Original Assignee
Furui Precise Component Kunshan Co Ltd
Foxconn Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furui Precise Component Kunshan Co Ltd, Foxconn Technology Co Ltd filed Critical Furui Precise Component Kunshan Co Ltd
Assigned to FURUI PRECISE COMPONENT (KUNSHAN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD. reassignment FURUI PRECISE COMPONENT (KUNSHAN) CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAI, Sheng-liang, LIU, Jin-peng, LIU, YUE, LO, YU-LIANG, WU, SHENG-LIN
Publication of US20100307720A1 publication Critical patent/US20100307720A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F28D15/04—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 tubes having a capillary structure
    • 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
    • F28D15/0283—Means for filling or sealing heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium alloys
    • 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
    • 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 generally to a heat pipe, and particularly to a heat pipe which has a pipe body made of titanium and a sealed end made of at least a ductile metal.
  • Heat pipes have excellent heat transfer performance due to their low thermal resistance, and are therefore an effective means for transfer or dissipation of heat from heat sources.
  • heat pipes are widely used for removing heat from heat-generating components such as central processing units (CPUs) of computers.
  • a heat pipe is usually a vacuum casing containing therein a working medium, which is employed to carry, under phase transitions between liquid state and vapor state, thermal energy from one section of the heat pipe (typically referring to as the “evaporator section”) to another section thereof (typically referring to as the “condenser section”).
  • titanium is preferred for use as a material to make heat pipes than copper due to its light weight, high strength and high resistance to corrosion.
  • titanium has a greater rigidity than copper, whereby cracks would be incurred on a sealed end of the titanium heat pipe when an open end of the heat pipe is cramped to form the sealed end. Thus, a vacuum degree of the heat pipe would be gradually decreased due to the cracks of the heat pipe.
  • FIG. 1 is an isometric view of a heat pipe in accordance with an exemplary embodiment of the present invention.
  • FIG. 2 is a longitudinally cross-sectional view of the heat pipe of FIG. 1 , taken along line II-II thereof.
  • FIG. 3 is an enlarged view of a circle portion III of FIG. 2 .
  • a heat pipe 1 includes a sealed casing 10 containing a working fluid (not shown) therein, a wick structure 12 disposed on an inner surface of the casing 10 and a supporting member 16 received in the casing 10 .
  • the casing 10 is made of titanium.
  • the casing 10 has a first end 13 , a second end 14 opposite to the first end 13 of the casing 10 , and a middle main portion 15 between the second end 14 and the first end 13 .
  • the first end 13 defines a receiving space 136 therein.
  • the first end 13 includes a shrinkage portion 131 connecting with the middle main portion 15 of the casing 10 , a connecting portion 132 connecting with the shrinkage portion 131 and a sealing portion 133 connecting with the connecting portion 132 .
  • the shrinkage portion 131 has a tapered configuration and an outer diameter of the shrinkage portion 131 gradually decreases along an axial direction from the second end 14 of the casing 10 toward the first end 13 of the casing 10 .
  • the connecting portion 132 has a tube-shaped configuration and extends longitudinally outwardly from the shrinkage portion 131 .
  • the sealing portion 133 is flat and has a top wall 134 and a bottom wall 135 spaced from each other.
  • the supporting member 16 is made of a material with low rigidity and good ductility such as copper, aluminum, stainless steel, low-carbon steel, iron, nickel, tungsten, tantalum, molybdenum, rhenium and columbium. In the preferred embodiment, the supporting member 16 is made of copper.
  • the supporting member 16 is received in the receiving space 136 of the first end 13 of the casing 10 .
  • An outer circumferential surface of the supporting member 16 is tightly attached to an inner circumferential surface of the first end 13 of the casing 10 .
  • the supporting member 16 includes a positioning portion 161 corresponding to the shrinkage portion 131 of the casing 10 , a tube-shaped connecting portion 162 corresponding to the connecting portion 132 of the casing 10 and a flat sealing portion 163 corresponding to the sealing portion 133 of the casing 10 .
  • the positioning portion 161 and the sealing portion 163 are disposed at two opposite ends of the supporting member 16 .
  • the connecting portion 162 is disposed between the positioning portion 161 and the sealing portion 163 of the supporting member 16 .
  • the positioning portion 161 has a tapered configuration and an outer diameter of the positioning portion 161 gradually decreases along an axial direction from the second end 14 of the casing 10 toward the first end 13 of the casing 10 .
  • An outer circumferential surface of the positioning portion 161 of the supporting member 16 is tightly attached to an inner circumferential surface of the shrinkage portion 131 of the casing 10 .
  • the connecting portion 162 of the supporting member 16 has an outer diameter the same as an inner diameter of the connecting portion 132 of the casing 10 .
  • An outer circumferential surface of the connecting portion 162 of the supporting member 16 is tightly attached to an inner circumferential surface of the connecting portion 132 of the casing 10 .
  • An outer circumferential surface of the sealing portion 163 of the supporting member 16 is tightly attached to an inner circumferential surface of the sealing portion 133 of the casing 10 .
  • the sealing portion 133 of the casing 10 is cramped to form the top wall 134 and the bottom wall 135 , whereby the sealing portion 163 of the supporting member 16 is cramped to form a top wall 164 and a bottom wall 165 intimately connected to the top wall 164 .
  • a free end 137 of the sealing portion 133 of the casing 10 and a free end 167 of the sealing portion 163 of the supporting member 16 are connected and sealed together by welding.
  • the casing 10 is provided, with the second end 14 of the heat pipe 1 being integrally sealed and the first end 13 being open. Then, the supporting member 16 is provided and inserted into the receiving space 136 of the first end 13 of the casing 10 . The first end 13 is shrunk to form the shrinkage portion 131 and the connecting portion 132 . The positioning portion 161 and the connecting portion 162 of the supporting member 16 are accordingly formed. The shrinkage portion 131 of the casing 10 prevents the supporting member 16 from moving longitudinally outwardly.
  • the sealing portion 133 of the casing 10 is cramped to cause the sealing portion 133 of the casing 10 and the sealing portion 163 of the supporting member 16 to be flattened, whereby the top wall 163 and the bottom wall 164 of the sealing portion 163 of the supporting member 16 are intimately connected together. Finally, the free end 137 of the sealing portion 133 of the casing 10 and the free end 167 of the sealing portion 163 of the supporting member 16 are welded, so that the heat pipe 1 is hermetically sealed.
  • the sealing portion 133 of the casing 10 is cramped, the sealing portion 133 is prevented from cracking since the supporting member 16 , which is made of a material having a low rigidity and good ductility in comparison with titanium supports the sealing portion 133 of the casing 10 .
  • the heat pipe 1 can have a better hermetically sealing effectiveness, in comparison with that attainable by a heat pipe purely made of titanium. It is well known by those skilled in the art that before the cramping of the sealing portions 133 , 163 of the casing 10 and the supporting member 16 , the working fluid is injected into the casing 10 and the air in the casing 10 is vacuumed via a hole in the sealing portion 163 .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Gasket Seals (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

A heat pipe includes a casing and a supporting member. The casing is made of titanium and has a first end and a second end at two opposite sides thereof. The first end defines a receiving space therein. The supporting member is made of a material selected from one of copper, aluminum, stainless steel, low-carbon steel, iron, nickel, tungsten, tantalum, molybdenum, rhenium and columbium. The supporting member is received in the receiving space of the first end of the casing. The first end of the casing and the supporting member are integrally cramped and sealed.

Description

    BACKGROUND
  • 1. Technical Field
  • The present invention relates generally to a heat pipe, and particularly to a heat pipe which has a pipe body made of titanium and a sealed end made of at least a ductile metal.
  • 2. Description of Related Art
  • Heat pipes have excellent heat transfer performance due to their low thermal resistance, and are therefore an effective means for transfer or dissipation of heat from heat sources. Currently, heat pipes are widely used for removing heat from heat-generating components such as central processing units (CPUs) of computers. A heat pipe is usually a vacuum casing containing therein a working medium, which is employed to carry, under phase transitions between liquid state and vapor state, thermal energy from one section of the heat pipe (typically referring to as the “evaporator section”) to another section thereof (typically referring to as the “condenser section”).
  • Presently, titanium is preferred for use as a material to make heat pipes than copper due to its light weight, high strength and high resistance to corrosion. However, titanium has a greater rigidity than copper, whereby cracks would be incurred on a sealed end of the titanium heat pipe when an open end of the heat pipe is cramped to form the sealed end. Thus, a vacuum degree of the heat pipe would be gradually decreased due to the cracks of the heat pipe.
  • Therefore, it is desirable to provide a heat pipe which can overcome the above described shortcoming.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
  • FIG. 1 is an isometric view of a heat pipe in accordance with an exemplary embodiment of the present invention.
  • FIG. 2 is a longitudinally cross-sectional view of the heat pipe of FIG. 1, taken along line II-II thereof.
  • FIG. 3 is an enlarged view of a circle portion III of FIG. 2.
    •  DETAILED DESCRIPTION
  • Referring to FIGS. 1-2, a heat pipe 1 includes a sealed casing 10 containing a working fluid (not shown) therein, a wick structure 12 disposed on an inner surface of the casing 10 and a supporting member 16 received in the casing 10.
  • The casing 10 is made of titanium. The casing 10 has a first end 13, a second end 14 opposite to the first end 13 of the casing 10, and a middle main portion 15 between the second end 14 and the first end 13. The first end 13 defines a receiving space 136 therein. The first end 13 includes a shrinkage portion 131 connecting with the middle main portion 15 of the casing 10, a connecting portion 132 connecting with the shrinkage portion 131 and a sealing portion 133 connecting with the connecting portion 132. The shrinkage portion 131 has a tapered configuration and an outer diameter of the shrinkage portion 131 gradually decreases along an axial direction from the second end 14 of the casing 10 toward the first end 13 of the casing 10. The connecting portion 132 has a tube-shaped configuration and extends longitudinally outwardly from the shrinkage portion 131. The sealing portion 133 is flat and has a top wall 134 and a bottom wall 135 spaced from each other.
  • The supporting member 16 is made of a material with low rigidity and good ductility such as copper, aluminum, stainless steel, low-carbon steel, iron, nickel, tungsten, tantalum, molybdenum, rhenium and columbium. In the preferred embodiment, the supporting member 16 is made of copper.
  • The supporting member 16 is received in the receiving space 136 of the first end 13 of the casing 10. An outer circumferential surface of the supporting member 16 is tightly attached to an inner circumferential surface of the first end 13 of the casing 10. The supporting member 16 includes a positioning portion 161 corresponding to the shrinkage portion 131 of the casing 10, a tube-shaped connecting portion 162 corresponding to the connecting portion 132 of the casing 10 and a flat sealing portion 163 corresponding to the sealing portion 133 of the casing 10. The positioning portion 161 and the sealing portion 163 are disposed at two opposite ends of the supporting member 16. The connecting portion 162 is disposed between the positioning portion 161 and the sealing portion 163 of the supporting member 16.
  • The positioning portion 161 has a tapered configuration and an outer diameter of the positioning portion 161 gradually decreases along an axial direction from the second end 14 of the casing 10 toward the first end 13 of the casing 10. An outer circumferential surface of the positioning portion 161 of the supporting member 16 is tightly attached to an inner circumferential surface of the shrinkage portion 131 of the casing 10. The connecting portion 162 of the supporting member 16 has an outer diameter the same as an inner diameter of the connecting portion 132 of the casing 10. An outer circumferential surface of the connecting portion 162 of the supporting member 16 is tightly attached to an inner circumferential surface of the connecting portion 132 of the casing 10. An outer circumferential surface of the sealing portion 163 of the supporting member 16 is tightly attached to an inner circumferential surface of the sealing portion 133 of the casing 10.
  • The sealing portion 133 of the casing 10 is cramped to form the top wall 134 and the bottom wall 135, whereby the sealing portion 163 of the supporting member 16 is cramped to form a top wall 164 and a bottom wall 165 intimately connected to the top wall 164. A free end 137 of the sealing portion 133 of the casing 10 and a free end 167 of the sealing portion 163 of the supporting member 16 are connected and sealed together by welding.
  • In manufacturing the heat pipe 1, the casing 10 is provided, with the second end 14 of the heat pipe 1 being integrally sealed and the first end 13 being open. Then, the supporting member 16 is provided and inserted into the receiving space 136 of the first end 13 of the casing 10. The first end 13 is shrunk to form the shrinkage portion 131 and the connecting portion 132. The positioning portion 161 and the connecting portion 162 of the supporting member 16 are accordingly formed. The shrinkage portion 131 of the casing 10 prevents the supporting member 16 from moving longitudinally outwardly. The sealing portion 133 of the casing 10 is cramped to cause the sealing portion 133 of the casing 10 and the sealing portion 163 of the supporting member 16 to be flattened, whereby the top wall 163 and the bottom wall 164 of the sealing portion 163 of the supporting member 16 are intimately connected together. Finally, the free end 137 of the sealing portion 133 of the casing 10 and the free end 167 of the sealing portion 163 of the supporting member 16 are welded, so that the heat pipe 1 is hermetically sealed. When the sealing portion 133 of the casing 10 is cramped, the sealing portion 133 is prevented from cracking since the supporting member 16, which is made of a material having a low rigidity and good ductility in comparison with titanium supports the sealing portion 133 of the casing 10. Thus, the heat pipe 1 can have a better hermetically sealing effectiveness, in comparison with that attainable by a heat pipe purely made of titanium. It is well known by those skilled in the art that before the cramping of the sealing portions 133, 163 of the casing 10 and the supporting member 16, the working fluid is injected into the casing 10 and the air in the casing 10 is vacuumed via a hole in the sealing portion 163.
  • It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the invention.

Claims (13)

1. A heat pipe comprising:
a casing made of titanium and having a first end and a second end at two opposite sides thereof, the first end defining a receiving space therein; and
a supporting member being made of a material selected from one of copper, aluminum, stainless steel, low-carbon steel, iron, nickel, tungsten, tantalum, molybdenum, rhenium and columbium, the supporting member being received in the receiving space of the first end of the casing, the first end of the casing and the supporting member being integrally cramped and sealed.
2. The heat pipe as claimed in claim 1, wherein an inner peripheral surface of the first end is tightly attached to an outer peripheral surface of the supporting member.
3. The heat pipe as claimed in claim 1, wherein the first end comprises a shrinkage portion and a sealing portion at two opposite ends thereof, the shrinkage portion has a tapered configuration and an outer diameter of the shrinkage portion gradually decreases along an axial direction from the second end of the casing toward the first end of the casing.
4. The heat pipe as claimed in claim 3, wherein the supporting member comprises a positioning member corresponding to the shrinkage portion of the casing and a sealing portion corresponding to the sealing portion of the first end of the casing, the sealing portion of the supporting member is flat and has a top wall and a bottom wall intimately connected to the top wall.
5. The heat pipe as claimed in claim 4, wherein a free end of the sealing portion of the first end of the casing and a free end of the sealing portion of the supporting member are connected and sealed together by welding.
6. The heat pipe as claimed in claim 1 further comprising a wick structure disposed in the heat pipe and working fluid contained in the heat pipe.
7. A heat pipe, comprising:
a casing made of titanium and having a first end and a second end at two opposite sides thereof, the first end defining a receiving space therein; and
a supporting member made of a material different from titanium, the supporting member being received in the receiving space of the first end of the casing, the first end of the casing and the supporting member being integrally cramped and sealed.
8. The heat pipe as claimed in claim 7, wherein the supporting member is made of a material selected from the group consisting of copper, aluminum, stainless steel, low-carbon steel, iron, nickel, tungsten, tantalum, molybdenum, rhenium and columbium.
9. The heat pipe as claimed in claim 8, wherein an outer peripheral surface of the supporting member is tightly attached to an inner peripheral surface of the first end of the casing.
10. The heat pipe as claimed in claim 9, wherein the first end of the casing comprises a shrinkage portion and a sealing portion at two opposite ends thereof, the shrinkage portion has a tapered configuration and an outer diameter of the shrinkage portion gradually decreases along an axial direction from the second end of the casing toward the first end of the casing.
11. The heat pipe as claimed in claim 10, wherein a free end of the sealing portion of the casing and a free end of the sealing portion of the supporting member are connected and sealed together by welding.
12. The heat pipe as claimed in claim 7 further comprising a wick structure disposed in the heat pipe and working fluid contained in the heat pipe.
13. The heat pipe as claimed in claim 12, wherein the supporting member is made of copper.
US12/549,389 2009-06-03 2009-08-28 Heat pipe Abandoned US20100307720A1 (en)

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CN200910302876.0 2009-06-03
CN2009103028760A CN101907412B (en) 2009-06-03 2009-06-03 Heat pipe

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110259544A1 (en) * 2010-04-21 2011-10-27 Lehigh University Encapsulated phase change apparatus for thermal energy storage
US20130284395A1 (en) * 2012-04-27 2013-10-31 Keihin Thermal Technology Corporation Heat exchanger with thermal storage function and method of manufacturing the same
WO2017205124A1 (en) * 2016-05-24 2017-11-30 Microsoft Technology Licensing, Llc Heat pipe having a predetermined torque resistance
US11304334B2 (en) * 2018-06-14 2022-04-12 Microsoft Technology Licensing, Llc Vapor chamber having an electromagnetic shielding layer and methods of manufacturing the same

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CN105865240B (en) * 2015-01-19 2018-02-27 奇鋐科技股份有限公司 The invalid end minimizing technology of flat hot pipe
CN111780599A (en) * 2020-06-08 2020-10-16 华南理工大学 Packaging method of high-temperature heat pipe
EP4043821B1 (en) * 2021-02-12 2024-04-03 ABB Schweiz AG Blank for a heat-transfer device and method to produce a heat-transfer device

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US1141067A (en) * 1914-03-10 1915-05-25 Elyria Iron & Steel Company Reinforced tubing.
US3680189A (en) * 1970-12-09 1972-08-01 Noren Products Inc Method of forming a heat pipe
US3863328A (en) * 1972-10-10 1975-02-04 Copperweld Steel Co Method of making a Composite steel tubing
JPS5989997A (en) * 1982-11-11 1984-05-24 Mitsubishi Electric Corp Heat pipe and manufacture thereof
JPH01285791A (en) * 1988-05-11 1989-11-16 Fujikura Ltd Ceramic heat pipe for high temperature
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US20100300655A1 (en) * 2009-05-27 2010-12-02 Furui Precise Component (Kunshan) Co., Ltd. Heat pipe

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110259544A1 (en) * 2010-04-21 2011-10-27 Lehigh University Encapsulated phase change apparatus for thermal energy storage
US20130284395A1 (en) * 2012-04-27 2013-10-31 Keihin Thermal Technology Corporation Heat exchanger with thermal storage function and method of manufacturing the same
US9511458B2 (en) * 2012-04-27 2016-12-06 Keihin Thermal Technology Corporation Heat exchanger with thermal storage function and method of manufacturing the same
WO2017205124A1 (en) * 2016-05-24 2017-11-30 Microsoft Technology Licensing, Llc Heat pipe having a predetermined torque resistance
CN109154476A (en) * 2016-05-24 2019-01-04 微软技术许可有限责任公司 Heat pipe with preset torque resistance
CN109154476B (en) * 2016-05-24 2021-06-08 微软技术许可有限责任公司 Heat pipe with predetermined torque resistance
US11304334B2 (en) * 2018-06-14 2022-04-12 Microsoft Technology Licensing, Llc Vapor chamber having an electromagnetic shielding layer and methods of manufacturing the same

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