US20130037241A1 - Heat pipe with unequal cross-sections - Google Patents

Heat pipe with unequal cross-sections Download PDF

Info

Publication number
US20130037241A1
US20130037241A1 US13/206,359 US201113206359A US2013037241A1 US 20130037241 A1 US20130037241 A1 US 20130037241A1 US 201113206359 A US201113206359 A US 201113206359A US 2013037241 A1 US2013037241 A1 US 2013037241A1
Authority
US
United States
Prior art keywords
heat pipe
evaporation section
condensation sections
heat
section
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
US13/206,359
Inventor
Chun-Hung Lin
Han-Lin Chen
Chang-Yin Chen
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.)
Cooler Master Development Corp
Original Assignee
Cooler Master 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 Cooler Master Co Ltd filed Critical Cooler Master Co Ltd
Priority to US13/206,359 priority Critical patent/US20130037241A1/en
Assigned to COOLER MASTER CO., LTD. reassignment COOLER MASTER CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, Chang-yin, CHEN, HAN-LIN, LIN, CHUN-HUNG
Publication of US20130037241A1 publication Critical patent/US20130037241A1/en
Assigned to COOLER MASTER DEVELOPMENT CORPORATION reassignment COOLER MASTER DEVELOPMENT CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: COOLER MASTER CO., LTD.
Abandoned legal-status Critical Current

Links

Images

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
    • F28D15/046—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 characterised by the material or the construction of the 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
    • F28D15/0233—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 the conduits having a particular shape, e.g. non-circular cross-section, annular

Definitions

  • the invention relates to heat pipes, particularly to heat pipes with unequal cross-sections.
  • Heat pipes can rapidly transfer a large amount of heat.
  • Conventional heat sinks without heat pipes are unable to effectively dissipate heat from modern electronic components.
  • heat sinks associated with heat pipes has become a mainstream.
  • a conventional heat pipe is composed of an even tube, a capillary structure and a working fluid.
  • the wick is disposed in the tube and abuts against the inner side thereof.
  • the working fluid is contained in the capillary structure.
  • the even tube with equal cross-section cannot be accelerated to transfer heat when the working fluid is evaporated into vapor. Thus its efficiency of heat transfer is limited.
  • the even tube cannot be bent in a smaller radius of curvature because of its equal cross-section. Hence, the tube may not be formed into a desired shape.
  • An object of the invention is to provide a heat pipe which has multiple sections with different cross-sections to accelerate flowing speed of vapor and to enhance efficiency of heat transfer.
  • Another object of the invention is to provide a heat pipe which can be bent in a smaller radius of curvature.
  • the heat pipe of the invention includes an evaporation section and two condensation sections.
  • the evaporation section is located at a part of the heat pipe.
  • the two condensation sections are separately located at two opposite sides of the evaporation section.
  • the evaporation section and the two condensation sections communicate with each other, and a peripheral size of the evaporation section is larger than that of each of the condensation sections.
  • FIG. 1 is a perspective view of the invention
  • FIG. 2 is a longitudinal section view of the invention
  • FIG. 3 is a cross section view along the line 3 - 3 in FIG. 2 ;
  • FIG. 4 is a perspective view of the invention
  • FIG. 5 is a longitudinal section view of the invention
  • FIG. 6 is a perspective view of another embodiment of the invention.
  • FIG. 7 is a longitudinal section view of the embodiment shown in FIG. 6 ;
  • FIG. 8 is a cross section view along the line 8 - 8 in FIG. 7 ;
  • FIG. 9 is a cross section view along the line 9 - 9 in FIG. 7 ;
  • FIG. 10 is a schematic view of the invention associated with a heat sink
  • FIG. 11 is a schematic view of the invention associated with another heat sink.
  • FIG. 12 is a cross section view of the evaporation section of the invention.
  • the invention provides a heat pipe with unequal cross-sections.
  • the heat pipe may be a metallic tube.
  • the heat pipe 1 includes a tube 10 , a first capillary structure 20 , a second capillary structure 30 , a working fluid 40 , an evaporation section 101 and two condensation sections 102 , 103 .
  • the tube 10 is made of copper or copper alloy with great thermo-conductivity.
  • the tube 10 may be a straight tube with a circular cross-section and has a chamber 11 therein.
  • the inner wall of the tube 10 is formed with a plurality of grooves 12 .
  • a protrusion 13 is formed between two adjacent grooves 12 .
  • the grooves 12 and protrusions 13 constitute the first capillary structure 20 as shown in FIG. 3 .
  • the middle portion of the tube 10 is expanded by a flaring process such that the chamber 11 a at the middle portion is larger than the chamber 11 b at two opposite ends in size.
  • this shape of the tube 10 may be formed by shrinking two opposite ends of the tube 10 .
  • the second capillary structure 30 formed by metal powder, mesh net or fiber bundle may be disposed on the inner wall of the tube 10 .
  • the middle portion of the tube 10 functions as the evaporation section 101 for contacting a heat source (not shown).
  • the two opposite ends of the tube 10 function as the two condensation sections 102 , 103 for connecting a fin set.
  • the condensation sections 102 , 103 and the evaporation section 101 communicate with each other.
  • the evaporation section 101 is larger than each of the condensation sections 102 , 103 in size.
  • FIGS. 6-9 show another embodiment of the heat pipe 1 ′ of the invention.
  • This embodiment differs from the above by the tube 10 being a straight tube with a flat cross-section.
  • the evaporation section 101 is larger than each of the condensation sections 102 , 103 in size.
  • the evaporation section 101 is disposed with the first capillary structure 20 formed by the grooves 12 and protrusions 13 and the condensation sections 102 , 103 are disposed with the first capillary structure 20 and the second capillary structure 30 formed by metal powder, mesh net or fiber bundle.
  • FIGS. 8 and 9 show that the area of cross-section of the chamber 11 a is larger than that of the chamber 11 b. As a result, when the working fluid 40 is evaporated into vapor, the vapor can be accelerated in flowing speed. Besides, the flat shape of the heat pipe 1 ′ may enlarge the area of thermal contact to further enhance the efficiency of heat transfer.
  • FIG. 10 shows that the heat pipe of the invention is used in a heat sink.
  • the heat sink includes the heat pipe 1 ′, fin sets 5 and two fans 6 .
  • the condensation sections 102 , 103 bendingly extend from the evaporation section 101 .
  • the condensation sections 102 , 103 are disposed with the fin sets 5 and the fans 6 are separately fixed on the fin sets 5 . Because the condensation sections 102 , 103 are smaller than the evaporation section 101 in size, the condensation sections 102 , 103 may be bent in a smaller radius of curvature to decrease the overall volume of a heat sink. Furthermore, the larger evaporation section 101 can make a bigger area of thermal contact with a heat source to enhance efficiency of heat transfer.
  • FIG. 11 shows another heat sink with the heat pipe of the invention.
  • the two condensation sections 102 , 103 are perpendicularly bent twice to form a substantially ringed shape such that the overlapped condensation sections 102 , 103 pass through the same fin set 5 .
  • the evaporation section 101 and the condensation sections 102 , 103 may be formed into a circular shape and a flat shape, respectively.
  • the evaporation section 101 and the condensation sections 102 , 103 may be formed into a flat shape and a circular shape, respectively.
  • the evaporation section 101 and the condensation sections 102 , 103 may be formed into a semicircular shape as shown in FIG. 12 and a circular shape, respectively.
  • the evaporation section 101 and the condensation sections 102 , 103 may be formed into a semicircular shape as shown in FIG. 12 and a flat shape, respectively.

Abstract

The heat pipe of the invention includes an evaporation section and two condensation sections. The evaporation section is located at a part of the heat pipe. The two condensation sections are separately located at two opposite sides of the evaporation section. The evaporation section and the two condensation sections communicate with each other, and a peripheral size of the evaporation section is larger than that of each of the condensation sections.

Description

    BACKGROUND OF THE INVENTION
  • 1. Technical Field
  • The invention relates to heat pipes, particularly to heat pipes with unequal cross-sections.
  • 2. Related Art
  • Modern electronic components generate more and more heat than ever. Heat pipes can rapidly transfer a large amount of heat. Conventional heat sinks without heat pipes are unable to effectively dissipate heat from modern electronic components. Thus heat sinks associated with heat pipes has become a mainstream.
  • A conventional heat pipe is composed of an even tube, a capillary structure and a working fluid. The wick is disposed in the tube and abuts against the inner side thereof. The working fluid is contained in the capillary structure.
  • However, the even tube with equal cross-section cannot be accelerated to transfer heat when the working fluid is evaporated into vapor. Thus its efficiency of heat transfer is limited. On the other hand, the even tube cannot be bent in a smaller radius of curvature because of its equal cross-section. Hence, the tube may not be formed into a desired shape.
    • SUMMARY OF THE INVENTION
  • An object of the invention is to provide a heat pipe which has multiple sections with different cross-sections to accelerate flowing speed of vapor and to enhance efficiency of heat transfer.
  • Another object of the invention is to provide a heat pipe which can be bent in a smaller radius of curvature.
  • To accomplish the above object, the heat pipe of the invention includes an evaporation section and two condensation sections. The evaporation section is located at a part of the heat pipe. The two condensation sections are separately located at two opposite sides of the evaporation section. The evaporation section and the two condensation sections communicate with each other, and a peripheral size of the evaporation section is larger than that of each of the condensation sections.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of the invention;
  • FIG. 2 is a longitudinal section view of the invention;
  • FIG. 3 is a cross section view along the line 3-3 in FIG. 2;
  • FIG. 4 is a perspective view of the invention;
  • FIG. 5 is a longitudinal section view of the invention;
  • FIG. 6 is a perspective view of another embodiment of the invention;
  • FIG. 7 is a longitudinal section view of the embodiment shown in FIG. 6;
  • FIG. 8 is a cross section view along the line 8-8 in FIG. 7;
  • FIG. 9 is a cross section view along the line 9-9 in FIG. 7;
  • FIG. 10 is a schematic view of the invention associated with a heat sink;
  • FIG. 11 is a schematic view of the invention associated with another heat sink; and
  • FIG. 12 is a cross section view of the evaporation section of the invention.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Please refer to FIGS. 1-5. The invention provides a heat pipe with unequal cross-sections. The heat pipe may be a metallic tube. The heat pipe 1 includes a tube 10, a first capillary structure 20, a second capillary structure 30, a working fluid 40, an evaporation section 101 and two condensation sections 102, 103.
  • The tube 10 is made of copper or copper alloy with great thermo-conductivity. The tube 10 may be a straight tube with a circular cross-section and has a chamber 11 therein. The inner wall of the tube 10 is formed with a plurality of grooves 12. And a protrusion 13 is formed between two adjacent grooves 12. The grooves 12 and protrusions 13 constitute the first capillary structure 20 as shown in FIG. 3.
  • The middle portion of the tube 10 is expanded by a flaring process such that the chamber 11 a at the middle portion is larger than the chamber 11 b at two opposite ends in size. Similarly, this shape of the tube 10 may be formed by shrinking two opposite ends of the tube 10.
  • Preferably, the second capillary structure 30 formed by metal powder, mesh net or fiber bundle may be disposed on the inner wall of the tube 10. In other words, there are the first capillary structure 20 and second capillary structure 30 in chamber 11 b of the tube 10.
  • The middle portion of the tube 10 functions as the evaporation section 101 for contacting a heat source (not shown). The two opposite ends of the tube 10 function as the two condensation sections 102, 103 for connecting a fin set. The condensation sections 102, 103 and the evaporation section 101 communicate with each other. And the evaporation section 101 is larger than each of the condensation sections 102, 103 in size.
  • FIGS. 6-9 show another embodiment of the heat pipe 1′ of the invention. This embodiment differs from the above by the tube 10 being a straight tube with a flat cross-section. Similarly, the evaporation section 101 is larger than each of the condensation sections 102, 103 in size. The evaporation section 101 is disposed with the first capillary structure 20 formed by the grooves 12 and protrusions 13 and the condensation sections 102, 103 are disposed with the first capillary structure 20 and the second capillary structure 30 formed by metal powder, mesh net or fiber bundle.
  • FIGS. 8 and 9 show that the area of cross-section of the chamber 11 a is larger than that of the chamber 11 b. As a result, when the working fluid 40 is evaporated into vapor, the vapor can be accelerated in flowing speed. Besides, the flat shape of the heat pipe 1′ may enlarge the area of thermal contact to further enhance the efficiency of heat transfer.
  • FIG. 10 shows that the heat pipe of the invention is used in a heat sink. The heat sink includes the heat pipe 1′, fin sets 5 and two fans 6. The condensation sections 102, 103 bendingly extend from the evaporation section 101. The condensation sections 102, 103 are disposed with the fin sets 5 and the fans 6 are separately fixed on the fin sets 5. Because the condensation sections 102, 103 are smaller than the evaporation section 101 in size, the condensation sections 102, 103 may be bent in a smaller radius of curvature to decrease the overall volume of a heat sink. Furthermore, the larger evaporation section 101 can make a bigger area of thermal contact with a heat source to enhance efficiency of heat transfer.
  • FIG. 11 shows another heat sink with the heat pipe of the invention. In this embodiment, the two condensation sections 102, 103 are perpendicularly bent twice to form a substantially ringed shape such that the overlapped condensation sections 102, 103 pass through the same fin set 5.
  • Besides, the evaporation section 101 and the condensation sections 102, 103 may be formed into a circular shape and a flat shape, respectively. The evaporation section 101 and the condensation sections 102, 103 may be formed into a flat shape and a circular shape, respectively. The evaporation section 101 and the condensation sections 102, 103 may be formed into a semicircular shape as shown in FIG. 12 and a circular shape, respectively. The evaporation section 101 and the condensation sections 102, 103 may be formed into a semicircular shape as shown in FIG. 12 and a flat shape, respectively.
  • It will be appreciated by persons skilled in the art that the above embodiments have been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departure from the scope of the invention as defined by the appended claims.

Claims (19)

1. A heat pipe comprising:
an evaporation section located at a part of the heat pipe; and
two condensation sections separately located at two opposite sides of the evaporation section;
wherein the evaporation section and the two condensation sections communicate with each other, and a peripheral size of the evaporation section is larger than that of each of the condensation sections.
2. The heat pipe of claim 1, wherein the heat pipe is made of metal.
3. The heat pipe of claim 1, wherein the heat pipe is a straight tube with a circular cross-section.
4. The heat pipe of claim 1, wherein the heat pipe is a straight tube with a flat cross-section.
5. The heat pipe of claim 1, wherein the evaporation section is circular, semicircular or flat in shape.
6. The heat pipe of claim 5, wherein each of the condensation sections is circular or flat in shape.
7. The heat pipe of claim 1, further comprising a first capillary structure disposed in the evaporation section and the condensation sections.
8. The heat pipe of claim 7, further comprising a second capillary structure disposed in each of the condensation sections and covering the first capillary structure.
9. The heat pipe of claim 8, further comprising a working fluid filled in the heat pipe.
10. A heat sink comprising:
a heat pipe comprising:
an evaporation section located at a part of the heat pipe; and
two condensation sections separately located at and bendingly extending from two opposite sides of the evaporation section;
wherein the evaporation section and the two condensation sections communicate with each other, and a peripheral size of the evaporation section is larger than that of each of the condensation sections; and
a fin set disposed on at least one of the condensation sections.
11. The heat sink of claim 10, wherein the heat pipe is made of metal.
12. The heat sink of claim 10, wherein the heat pipe is a straight tube with a circular cross-section.
13. The heat sink of claim 10, wherein the heat pipe is a straight tube with a flat cross-section.
14. The heat sink of claim 10, wherein the evaporation section is circular, semicircular or flat in shape.
15. The heat sink of claim 14, wherein each of the condensation sections is circular or flat in shape.
16. The heat sink of claim 10, further comprising a first capillary structure disposed in the evaporation section and the condensation sections.
17. The heat sink of claim 16, further comprising a second capillary structure disposed in each of the condensation sections and covering the first capillary structure.
18. The heat sink of claim 17, further comprising a working fluid filled in the heat pipe.
19. The heat sink of claim 10, further comprising a fan disposed on one side of the fin set.
US13/206,359 2011-08-09 2011-08-09 Heat pipe with unequal cross-sections Abandoned US20130037241A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/206,359 US20130037241A1 (en) 2011-08-09 2011-08-09 Heat pipe with unequal cross-sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/206,359 US20130037241A1 (en) 2011-08-09 2011-08-09 Heat pipe with unequal cross-sections

Publications (1)

Publication Number Publication Date
US20130037241A1 true US20130037241A1 (en) 2013-02-14

Family

ID=47676786

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/206,359 Abandoned US20130037241A1 (en) 2011-08-09 2011-08-09 Heat pipe with unequal cross-sections

Country Status (1)

Country Link
US (1) US20130037241A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110519961A (en) * 2018-05-22 2019-11-29 惠州惠立勤电子科技有限公司 Radiator and the radiator for using the radiator
US20200033067A1 (en) * 2018-07-25 2020-01-30 Taiwan Microloops Corp. Heat sink and cooling device using the same
TWI690685B (en) * 2019-06-11 2020-04-11 索士亞科技股份有限公司 Heat pipe manufacturing method with adjustable working temperature range
US10859322B2 (en) * 2019-01-31 2020-12-08 Auras Technology Co., Ltd. Composite-type heat type
US11092386B2 (en) * 2019-08-21 2021-08-17 Celsia Technologies Taiwan, Inc. Manufacturing method and structure of heat pipe with adjustable working temperature range
US20220205733A1 (en) * 2016-06-15 2022-06-30 Delta Electronics, Inc. Heat dissipation device
US11971219B2 (en) * 2017-06-06 2024-04-30 Delta Electronics, Inc. Heat dissipation device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060289146A1 (en) * 2005-06-24 2006-12-28 Kuo-Hsien Wu Thermal module incorporating heat pipe
US20070295485A1 (en) * 2006-06-21 2007-12-27 Foxconn Technology Co., Ltd. Heat pipe
US20100263835A1 (en) * 2009-04-17 2010-10-21 Young Green Energy Co. Heat pipe
US8020611B2 (en) * 2008-09-19 2011-09-20 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Heat dissipating device having G-shaped heat pipes and heat sinks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060289146A1 (en) * 2005-06-24 2006-12-28 Kuo-Hsien Wu Thermal module incorporating heat pipe
US20070295485A1 (en) * 2006-06-21 2007-12-27 Foxconn Technology Co., Ltd. Heat pipe
US8020611B2 (en) * 2008-09-19 2011-09-20 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Heat dissipating device having G-shaped heat pipes and heat sinks
US20100263835A1 (en) * 2009-04-17 2010-10-21 Young Green Energy Co. Heat pipe

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220205733A1 (en) * 2016-06-15 2022-06-30 Delta Electronics, Inc. Heat dissipation device
US11971219B2 (en) * 2017-06-06 2024-04-30 Delta Electronics, Inc. Heat dissipation device
CN110519961A (en) * 2018-05-22 2019-11-29 惠州惠立勤电子科技有限公司 Radiator and the radiator for using the radiator
US20200033067A1 (en) * 2018-07-25 2020-01-30 Taiwan Microloops Corp. Heat sink and cooling device using the same
US10859322B2 (en) * 2019-01-31 2020-12-08 Auras Technology Co., Ltd. Composite-type heat type
TWI690685B (en) * 2019-06-11 2020-04-11 索士亞科技股份有限公司 Heat pipe manufacturing method with adjustable working temperature range
US11092386B2 (en) * 2019-08-21 2021-08-17 Celsia Technologies Taiwan, Inc. Manufacturing method and structure of heat pipe with adjustable working temperature range

Similar Documents

Publication Publication Date Title
US20200182556A1 (en) Flat heat pipe structure
US20150348802A1 (en) Thinned flat plate heat pipe fabricated by extrusion
US10077945B2 (en) Heat dissipation device
US20130037241A1 (en) Heat pipe with unequal cross-sections
US8459340B2 (en) Flat heat pipe with vapor channel
US20120227934A1 (en) Heat pipe having a composite wick structure and method for making the same
US9179577B2 (en) Flat heat pipe and fabrication method thereof
MY144548A (en) Fin-and-tube heat exchanger and return bend tube thereof
US20120111541A1 (en) Plate type heat pipe and heat sink using the same
JP3203322U (en) Heat tube with fibrous capillary structure
JP5323614B2 (en) Heat pipe and manufacturing method thereof
US20120180994A1 (en) Heat pipe structure
JP2019184219A (en) Reflow heat pipe with liquid bullet pipe conduit
JP5759600B1 (en) Flat heat pipe
US20060207751A1 (en) Heat pipe
JP2005180907A (en) Internally enhanced tube with smaller groove top
US20170343295A1 (en) Integrated heat dissipation device
WO2017115771A1 (en) Heat pipe
US20160201992A1 (en) Heat pipe
US20150041103A1 (en) Vapor chamber with improved wicking structure
US8162036B2 (en) Heat pipe structure and flattened heat pipe structure
JP2006284020A (en) Heat pipe
CN113966136A (en) Heat sink device
US20130048248A1 (en) Heat pipe manufacturing method and heat pipe thereof
US20150168078A1 (en) Vapor Chamber Structure

Legal Events

Date Code Title Description
AS Assignment

Owner name: COOLER MASTER CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIN, CHUN-HUNG;CHEN, HAN-LIN;CHEN, CHANG-YIN;REEL/FRAME:026723/0228

Effective date: 20110701

AS Assignment

Owner name: COOLER MASTER DEVELOPMENT CORPORATION, TAIWAN

Free format text: CHANGE OF NAME;ASSIGNOR:COOLER MASTER CO., LTD.;REEL/FRAME:032088/0149

Effective date: 20130220

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION