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WO2008100007A1 - Caloduc plat et procédé de fabrication correspondant - Google Patents

Caloduc plat et procédé de fabrication correspondant Download PDF

Info

Publication number
WO2008100007A1
WO2008100007A1 PCT/KR2007/006280 KR2007006280W WO2008100007A1 WO 2008100007 A1 WO2008100007 A1 WO 2008100007A1 KR 2007006280 W KR2007006280 W KR 2007006280W WO 2008100007 A1 WO2008100007 A1 WO 2008100007A1
Authority
WO
WIPO (PCT)
Prior art keywords
flat plate
plate case
coolant
heat pipe
case
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.)
Ceased
Application number
PCT/KR2007/006280
Other languages
English (en)
Inventor
Yong-Duck Lee
Hyun-Tae Kim
Hyuck-Jin Kwon
Su-Hyeon Kim
Hwan-Hee Oh
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.)
LS Mtron Ltd
LS Cable and Systems Ltd
Original Assignee
LS Cable Ltd
LS Mtron 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 LS Cable Ltd, LS Mtron Ltd filed Critical LS Cable Ltd
Publication of WO2008100007A1 publication Critical patent/WO2008100007A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F28D15/0233—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/09—Heat pipes

Definitions

  • the present invention relates to a flat plate heat pipe and a method for manufacturing the same, and more particularly to a flat plate heat pipe having a non-joining flat plate case and a method for manufacturing the same.
  • a predetermined flat plate heat transfer device is preferably attached to a corresponding heat source such that the heat is transferred to a heat emitting unit such as a heat sink.
  • a flat plate heat transfer device is configured such that a coolant is filled in a sealed metal case with a small thickness, and a wick structure is formed on an inner side of the metal case.
  • heat generated from a heat source is transferred to the wick structure contacting with the heat source, and in this region, a coolant contained in the wick structure is evaporated and diffused in all directions through an inner space of the metal case.
  • the coolant is condensed after emitting heat at the wick structure in a cooling area where the heat sink is installed. The heat emitted during the condensation process is transferred to the heat sink, and then emitted out in a forced convection manner using a cooling fan.
  • a coolant in a liquid state absorbs heat from a heat source and is then evaporated, and the evaporated vapor should be moved again to the cooling area, so a space for flowing the vapor should be ensured.
  • upper and lower plates of the case may be crushed or distorted during a manufacture process, which deteriorates reliability of a product.
  • the present invention is designed to solve the problems of the prior art, and therefore it is an object of the present invention to provide a flat plate heat pipe that may have a flat plate case in a non-joining manner, be provided with a wick structure of high efficiency, and be capable of keeping a case shape.
  • the present invention is also directed to providing a method for manufacturing the flat plate heat pipe.
  • the present invention provides a flat plate heat pipe, which includes a flat plate case having a plurality of grooves formed in an inner side thereof and having a successive circumferential surface such that both ends thereof are finally sealed with a coolant being injected into an inner space thereof; and a screen mesh put into the inner space of the flat plate case.
  • the grooves are extended in a length direction of the flat plate case and formed at regular intervals along an inner circumferential direction of the flat plate case.
  • a method for manufacturing a flat plate heat pipe which includes preparing a pipe with a circular section; forming a plurality of grooves in an inner side of the pipe; compressing the pipe into a shape of a flat plate case; putting a screen mesh into the flat plate case; and injecting a coolant into the flat plate case and then sealing the flat plate case.
  • a method for manufacturing a flat plate heat pipe which includes extruding a flat plate case to have a plurality of grooves formed in an inner side thereof; putting a screen mesh into the flat plate case; and injecting a coolant into the flat plate case and then sealing the flat plate case.
  • the grooves are extended in a length direction of the flat plate case and formed at regular intervals along an inner circumferential direction of the flat plate case.
  • the inside of the flat plate case may kept in vacuum before the coolant is injected therein.
  • FIG. 1 is a perspective view showing a flat plate heat pipe according to a preferred embodiment of the present invention
  • FIG. 2 is a flowchart illustrating a method for manufacturing the flat plate heat pipe according to one embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating a method for manufacturing the flat plate heat pipe according to another embodiment of the present invention.
  • FIG. 1 is a perspective view showing a flat plate heat pipe according to a preferred embodiment of the present invention.
  • the flat plate heat pipe according to the preferred embodiment of the present invention includes a flat plate case 100 finally sealed with a coolant filled therein, and a screen mesh 102 put into the flat plate case 100.
  • the flat plate case 100 has a plurality of grooves 101 formed in an inner side thereof, and a circumferential surface of the flat plate case 100 is formed in a successive structure without any joining.
  • Such a flat plate case 100 may be provided in a way of compressing a pipe with a circular section into a plate shape or extruding a flat plate pipe shape using a mold.
  • the grooves 101 are preferably extended in a length direction of the flat plate case
  • the screen mesh 102 is put into an inner space of the flat plate case 100 to prevent the flat plate case 100 from being deformed in a thickness direction and also give channels for a coolant in a vapor or liquid state.
  • the flat plate case 100 is finally sealed at both ends thereof while a coolant is filled in the inner space, so a pressure is applied in a thickness direction due to the difference between inner and outer pressures.
  • the screen mesh 102 is provided in the flat plate case 100, the screen mesh 102 supports the flat plate case 100, thereby preventing the flat plate case 100 from being deformed in a thickness direction.
  • the screen mesh 102 in which wires are woven up and down in turns ensures a coolant channel to give a heat transfer and diffusion function. This principle is well disclosed in the Korean Patent Registration No. 495,699, so it is not described in detail here.
  • the flat plate heat pipe configured as mentioned above is mounted such that a part of its outer side is contacted with a heat source that should be cooled.
  • the heat generated from the heat source is transferred to the inner side of the flat plate case 100, and in this area, a coolant contained in the grooves 101 is evaporated and then diffused in all directions through the inner space of the flat plate case 100 and the screen mesh 102.
  • the coolant then emits heat in the grooves 101 in a cooling area where the heat sink is mounted, and is then condensed.
  • the heat emitted in the condensation process is transferred to the heat sink, and then emitted out in a forced convection manner using a cooling fan.
  • the condensed coolant returns to the heat sink again by means of a capillary force by the grooves 101 and the screen mesh 102, and then the above process is repeated.
  • FIG. 2 is a flowchart illustrating a method for manufacturing a flat plate heat pipe according to one embodiment of the present invention.
  • the method for manufacturing a flat plate heat pipe includes the steps of preparing a pipe with a circular section (Step SlOO), forming a plurality of grooves 101 in an inner side of the pipe (Step SlOl), compressing the pipe into a shape of a flat plate case 100 (Step S 102), putting a screen mesh 102 into the flat plate case 100 (Step S 103), and injecting a coolant into the flat plate case and finally sealing the flat plate case (Step S 104).
  • the inner side of the flat plate case 100 is grooved in a length direction of the flat plate case 100, and it is preferred that the grooves are formed at regular intervals along an inner circumferential direction of the flat plate case 100.
  • the Step S 104 may selectively adopt a process for keeping the inside of the flat plate case 100 in a vacuum state before the coolant is injected, or a flushing process for removing non-condensed gas except the coolant after the coolant is injected.
  • FIG. 3 is a flowchart illustrating a method for manufacturing a flat plate heat pipe according to another embodiment of the present invention.
  • the method for manufacturing a flat plate heat pipe includes the steps of extruding a flat plate case 100 with grooves 101 formed therein (Step S200), putting a screen mesh 102 into the flat plate case 100 (Step S201), and injecting a coolant into the flat plate case and then finally sealing the flat plate case (Step S202).
  • the Step S200 is progressed as an extruding process using a mold with a shape corresponding to the flat plate case 100 and the grooves 101.
  • the flat plate case 100 prepared by the extruding process has no joining on its circumference, and a plurality of grooves 101 extended in a length direction are formed in its inner side.
  • the Step S202 may adopt a process for keeping the inside of the flat plate case 100 in a vacuum state before the coolant is injected, or a flushing process for removing non-condensed gas except the coolant after the coolant is injected.
  • a flat plate case may be processed in a non- joining manner, so it is possible to facilitate its manufacture and lower a product cost.
  • a wick structure for promoting evaporation and condensation of a coolant may be provided by means of the grooves in the inner side of the flat plate case, and also it is possible to prevent compression of the flat plate heat pipe owing to the screen mesh and also ensure vapor and liquid channels of the coolant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

L'invention concerne un caloduc plat qui comprend un corps plat comportant plusieurs rainures formées dans un côté intérieur de ce dernier et possédant une surface circonférentielle successive de sorte que les deux extrémités successives sont finalement liées par un réfrigérant injecté dans un espace intérieur; et un tamis à mailles placé dans l'espace intérieur du corps plat.
PCT/KR2007/006280 2007-02-16 2007-12-05 Caloduc plat et procédé de fabrication correspondant Ceased WO2008100007A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070016316A KR20080076423A (ko) 2007-02-16 2007-02-16 판형 히트 파이프 및 그 제조방법
KR10-2007-0016316 2007-02-16

Publications (1)

Publication Number Publication Date
WO2008100007A1 true WO2008100007A1 (fr) 2008-08-21

Family

ID=39690214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/006280 Ceased WO2008100007A1 (fr) 2007-02-16 2007-12-05 Caloduc plat et procédé de fabrication correspondant

Country Status (3)

Country Link
KR (1) KR20080076423A (fr)
TW (1) TW200835898A (fr)
WO (1) WO2008100007A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140060780A1 (en) * 2012-08-29 2014-03-06 Electronics And Telecommunications Research Institute Flat heat pipe and fabrication method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9421648B2 (en) 2013-10-31 2016-08-23 Asia Vital Components Co., Ltd. Manufacturing method of heat pipe structure
WO2021096125A1 (fr) * 2019-11-11 2021-05-20 주식회사 아모그린텍 Caloduc de type feuille et son procédé de fabrication
CN114543566A (zh) * 2022-01-18 2022-05-27 上海交通大学 一种基于板式热管的冷凝器、制冷设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08303972A (ja) * 1995-05-02 1996-11-22 Fujikura Ltd 携帯型パソコン冷却用の偏平ヒートパイプとその製造方法
KR20000051935A (ko) * 1999-01-28 2000-08-16 김평동 히트파이프 제조방법
JP2002081875A (ja) * 2000-09-11 2002-03-22 Diamond Electric Mfg Co Ltd 扁平状ヒートパイプとその加工方法
KR100631050B1 (ko) * 2005-04-19 2006-10-04 한국전자통신연구원 평판형 히트 파이프

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08303972A (ja) * 1995-05-02 1996-11-22 Fujikura Ltd 携帯型パソコン冷却用の偏平ヒートパイプとその製造方法
KR20000051935A (ko) * 1999-01-28 2000-08-16 김평동 히트파이프 제조방법
JP2002081875A (ja) * 2000-09-11 2002-03-22 Diamond Electric Mfg Co Ltd 扁平状ヒートパイプとその加工方法
KR100631050B1 (ko) * 2005-04-19 2006-10-04 한국전자통신연구원 평판형 히트 파이프

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140060780A1 (en) * 2012-08-29 2014-03-06 Electronics And Telecommunications Research Institute Flat heat pipe and fabrication method thereof

Also Published As

Publication number Publication date
KR20080076423A (ko) 2008-08-20
TW200835898A (en) 2008-09-01

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