US20110240264A1 - Plate-type heat pipe and method for manufacturing the same - Google Patents
Plate-type heat pipe and method for manufacturing the same Download PDFInfo
- Publication number
- US20110240264A1 US20110240264A1 US12/770,771 US77077110A US2011240264A1 US 20110240264 A1 US20110240264 A1 US 20110240264A1 US 77077110 A US77077110 A US 77077110A US 2011240264 A1 US2011240264 A1 US 2011240264A1
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- United States
- Prior art keywords
- plate
- mold
- wick structure
- metallic sheet
- heat pipe
- 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.)
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Classifications
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- 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
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- 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
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49353—Heat pipe device making
Definitions
- the present disclosure relates to plate-type heat pipes, and more particularly, to a plate-type heat pipe having stable and reliable performance and a method for manufacturing such plate-type heat pipe.
- plate-type heat pipes are used to absorb heat generated by electronic components and transfer and/or dissipate the heat elsewhere.
- a typical plate-type heat pipe includes a plate-shaped container, a wick structure formed on inner surfaces of the container, and working fluid sealed inside the container. The container is prone to be deformed when it is pressed accidentally or when the working fluid is vaporized, thereby adversely affecting the stable performance of the plate-type heat pipe.
- FIG. 1 is an exploded, isometric view of a plate-type heat pipe in accordance with an embodiment of the present disclosure.
- FIG. 2 is an assembled, side cross-sectional view of the plate-type heat pipe of FIG. 1 .
- FIG. 3 is a side cross-sectional view showing a first mold accommodating a condensing plate of the plate-type heat pipe of FIG. 1 .
- FIG. 4 is similar to FIG. 3 , but showing a first wick structure of the plate-type heat pipe of FIG. 1 being formed on the condensing plate.
- FIG. 5 is an isometric view of a first mold portion of a second mold, which is used for forming a second wick structure of the plate-type heat pipe of FIG. 1 .
- FIG. 6 is an isometric view of a second mold portion of the second mold, showing the second mold portion inverted.
- FIG. 7 is a side cross-sectional view showing the first and second mold portions of the second mold coupled together and accommodating an evaporating plate of the plate-type heat pipe of FIG. 1 .
- FIG. 8 is similar to FIG. 7 , but showing a second wick structure of the plate-type heat pipe of FIG. 1 being formed on the evaporating plate.
- a method for manufacturing a plate-type heat pipe in accordance with an embodiment of the present disclosure includes steps of: a) providing a first metallic sheet, a second metallic sheet, and a supporting portion; b) arranging the supporting portion between the first metallic sheet and the second metallic sheet; and c) welding the first and second metallic sheets together, thereby obtaining a hermetical container, the supporting portion abutting against and connecting with the first and second metallic sheets. Exemplary details of the method are given below.
- the method is used to manufacture a plate-type heat pipe which includes an elongated condensing plate 11 , a tray-shaped evaporating plate 13 , a first wick structure 12 , a second wick structure 14 , and a plurality of supporting portions 15 .
- the condensing plate 11 hermetically contacts the evaporating plate 13 .
- the evaporating plate 13 is adapted for absorbing heat generated by one or more components (not shown) such as electronic devices.
- the condensing plate 11 dissipates heat, transferred from the evaporating plate 13 , to the ambient environment.
- the first wick structure 12 is adhered on an inner surface of the condensing plate 11 .
- the second wick structure 14 is adhered on an inner surface of the evaporating plate 13 .
- Each of the supporting portions 15 is a sphere and abuts against the inner surfaces of the condensing plate 11 and the evaporating plate 13 , respectively.
- the condensing plate 11 , the evaporating plate 13 and the supporting portions 15 are formed from metallic material which can be soldered and which transfers heat well. In this embodiment, the condensing plate 11 , the evaporating plate 13 and the supporting portions 15 are made of copper.
- the evaporating plate 13 includes a rectangular heat absorbing portion 131 , four sidewalls 133 , and two extending portions 135 .
- the sidewalls 133 perpendicularly extend upwardly from four edges of the heat absorbing portion 131 .
- the extending portions 135 extend outwardly along opposite horizontal directions from top portions of two opposite sidewalls 133 , respectively.
- the extending portions 135 are perpendicular to the sidewalls 133 . Top surfaces of the extending portions 135 and top ends of two corresponding sidewalls 133 interconnecting the extending portions 135 are all coplanar with one another.
- the second wick structure 14 includes a first wick portion 141 and four second wick portions 143 .
- the first wick portion 141 is adhered on an inner surface of the heat absorbing portion 131 .
- the second wick portions 143 are adhered on inner surfaces of the sidewalls 133 , respectively.
- the top surfaces of the extending portions 135 and the top ends of the two corresponding sidewalls 133 hermetically connect a periphery of a bottom surface of the condensing plate 11 .
- Four lateral side edges of the first wick structure 12 connect with inside surfaces of top ends of the second wick portions 143 of the second wick structure 14 , respectively.
- the supporting portions 15 extend through the first wick structure 12 and the first wick portions 141 to directly abut against the condensing plate 11 and the heat absorbing portion 131 of the evaporating plate 13 , respectively.
- the first wick structure 12 is sintered copper powder made in a first mold 20
- the second wick structure 14 is sintered copper powder made in a second mold 40 , as shown in FIGS. 5-8 .
- the first mold 20 includes a first mold portion 21 , and a second mold portion 23 matching with the first mold portion 21 .
- the first mold portion 21 includes a top plate 213 and four elongated, spaced pressing walls 215 extending perpendicularly downwardly from an inner surface of the top plate 213 .
- the second mold portion 23 is a rectangular container, and includes a supporting plate 231 and four baffling plates 233 extending perpendicularly upwardly from four edges of the supporting portion 231 . A space (not labeled) is thus defined among the baffling plates 233 over the supporting plate 231 .
- the condensing plate 11 is received in the second mold portion 23 , with lateral side edges of the condensing plate 11 abutting against inner surfaces of the baffling plates 233 . Top ends of the baffling plates 233 protrude up beyond the condensing plate 11 .
- the first mold portion 21 is coupled to the second mold portion 23 , with the pressing walls 215 received in the space and engaging with inner sides of the baffling plates 233 , respectively.
- the top ends of the baffling plates 233 abut against a periphery of the inner surface of the top plate 213 . In such a state, bottom ends of the pressing walls 215 contact peripheral portions of the condensing plate 11 .
- the pressing walls 215 , the top plate 213 and the condensing plate 11 cooperatively define a rectangular first receiving chamber 30 .
- the copper powder is filled in the first receiving chamber 30 and is sintered to form the first wick structure 12 on a main central portion of the inner surface of the condensing plate 11 .
- the second mold 40 includes a first mold portion 41 and a second mold portion 43 .
- the first mold portion 41 includes an engaging plate 413 , and a cuboid protruding portion 415 protruding from a central portion of the engaging plate 413 . Therefore each of opposite lateral ends of the engaging plate 413 exposed beyond the protruding portion 415 forms a first pressing portion 414 , and each of two opposite front and rear ends of the engaging plate 413 exposed beyond the protruding portion 415 forms a second pressing portion 416 .
- a size of each first pressing portion 414 is larger than that of the corresponding extending portion 135 of the evaporating plate 13 .
- a size of each second pressing portion 416 is larger than that of the top end of the corresponding sidewall 133 .
- a plurality of cylindrical receiving holes 4151 is defined in the protruding portion 415 to receive the supporting portions 15 therein.
- a height of the protruding portion 415 is less than a height of the sidewalls 133 of the evaporating plate 13 .
- a length of the protruding portion 415 is less than a distance between the two corresponding sidewalls 133 of the evaporating plate 13 .
- a width of the protruding portion 415 is less than a distance between the two corresponding sidewalls 133 of the evaporating plate 13 .
- a diameter of each receiving hole 4151 is substantially equal to or slightly greater than a diameter of each supporting portion 15 , and a depth of the receiving hole 4151 is less than the diameter of the supporting portion 15 .
- the second mold portion 43 includes a supporting plate 431 , two first extending plates 433 and two second extending plates 435 .
- the first extending plates 433 are elongated, parallel to each other and extend upwardly from two opposite front and rear ends of the supporting plate 431 .
- the second extending plates 435 are elongated, parallel to each other and extend upwardly from two opposite left and right lateral ends of the supporting plate 431 .
- the second extending plates 435 perpendicularly interconnect the first extending plates 433 .
- a height of the second extending plates 435 is less than that of the first extending plates 433 .
- the difference between the heights of the second extending plates 435 and first extending plates 433 is generally equal to a thickness of the extending portions 135 of the evaporating plate 13 .
- the supporting plate 431 , the first extending plates 433 and the second extending plates 435 cooperatively define a receiving chamber 437 to receive the evaporating plate 13 .
- the evaporating plate 13 is received in the receiving chamber 437 of the second mold portion 43 of the second mold 40 , with the heat absorbing portion 131 of the evaporating plate 13 contacting the supporting plate 431 of the second mold portion 43 .
- Bottom ends (as viewed in FIG. 7 ) of the second extending plates 435 abut against the extending portions 135 of the evaporating plates 13 , respectively; and inner sides of the second extending plates 435 contact the two sidewalls 133 from which the extending portions 135 extend.
- the other two sidewalls 133 contact inner sides of the first extending plates 433 , respectively.
- Bottom ends (as viewed in FIG. 7 ) of the extending portions 135 , said other two sidewalls 133 , and the first extending plates 433 are all coplanar with one another.
- the supporting portions 15 are received in the receiving holes 4151 of the protruding portion 415 of the first mold portion 41 .
- the first mold portion 41 and the second mold portion 42 are then coupled together.
- the first pressing portions 414 of the first mold portion 41 contact the extending plates 135 of the evaporating plate 13 , respectively.
- the second pressing portions 416 press the bottom ends of said other two sidewalls 133 and the first extending plates 433 .
- the protruding portion 415 is spaced from the heat absorbing portion 131 , while the supporting portions 15 contact the heat absorbing portion 131 .
- the sidewalls 133 of the evaporating plate 13 surround and are spaced from the protruding portion 415 .
- a second receiving chamber 50 is thus defined between the evaporating plate 13 and the first mold portion 41 .
- copper powder is then filled in the second receiving chamber 50 and is sintered to form the second wick structure 14 .
- the supporting portions 15 also connect with the second wick structure 14 by the sintering of the copper powder. In one embodiment, the supporting portions 15 become integrally connected with the second wick structure 14 .
- the first mold 20 and the second mold 40 are opened to obtain the condensing plate 11 and the evaporating plate 13 .
- the condensing plate 11 and the evaporating plate 13 are then attached together by welding.
- the condensing plate 11 and evaporating plate 13 are brought into contact with each other, and then subjected to high temperature and high pressure for a period of time.
- the supporting portions 15 penetrate through the first wick structure 12 , with opposite ends of the supporting portions 15 thereby abutting against both the condensing plate 11 and the evaporating plate 13 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
An exemplary plate-type heat pipe includes a condensing plate, an evaporating plate and a spherical supporting. The evaporating plate engages with the condensing plate to define a hermetic container. Working fluid is contained in the container. The supporting portion in the container is sandwiched between the condensing plate and the evaporating plate and abuts against the condensing plate and the evaporating plate.
Description
- 1. Technical Field
- The present disclosure relates to plate-type heat pipes, and more particularly, to a plate-type heat pipe having stable and reliable performance and a method for manufacturing such plate-type heat pipe.
- 2. Description of Related Art
- Generally, plate-type heat pipes are used to absorb heat generated by electronic components and transfer and/or dissipate the heat elsewhere. A typical plate-type heat pipe includes a plate-shaped container, a wick structure formed on inner surfaces of the container, and working fluid sealed inside the container. The container is prone to be deformed when it is pressed accidentally or when the working fluid is vaporized, thereby adversely affecting the stable performance of the plate-type heat pipe.
- What is needed, therefore, is a plate-type heat pipe which can overcome the limitations described, and a method for manufacturing such a plate-type heat pipe.
-
FIG. 1 is an exploded, isometric view of a plate-type heat pipe in accordance with an embodiment of the present disclosure. -
FIG. 2 is an assembled, side cross-sectional view of the plate-type heat pipe ofFIG. 1 . -
FIG. 3 is a side cross-sectional view showing a first mold accommodating a condensing plate of the plate-type heat pipe ofFIG. 1 . -
FIG. 4 is similar toFIG. 3 , but showing a first wick structure of the plate-type heat pipe ofFIG. 1 being formed on the condensing plate. -
FIG. 5 is an isometric view of a first mold portion of a second mold, which is used for forming a second wick structure of the plate-type heat pipe ofFIG. 1 . -
FIG. 6 is an isometric view of a second mold portion of the second mold, showing the second mold portion inverted. -
FIG. 7 is a side cross-sectional view showing the first and second mold portions of the second mold coupled together and accommodating an evaporating plate of the plate-type heat pipe ofFIG. 1 . -
FIG. 8 is similar toFIG. 7 , but showing a second wick structure of the plate-type heat pipe ofFIG. 1 being formed on the evaporating plate. - A method for manufacturing a plate-type heat pipe in accordance with an embodiment of the present disclosure includes steps of: a) providing a first metallic sheet, a second metallic sheet, and a supporting portion; b) arranging the supporting portion between the first metallic sheet and the second metallic sheet; and c) welding the first and second metallic sheets together, thereby obtaining a hermetical container, the supporting portion abutting against and connecting with the first and second metallic sheets. Exemplary details of the method are given below.
- Referring to
FIGS. 1-2 , in a typical application, the method is used to manufacture a plate-type heat pipe which includes anelongated condensing plate 11, a tray-shapedevaporating plate 13, afirst wick structure 12, asecond wick structure 14, and a plurality of supportingportions 15. Thecondensing plate 11 hermetically contacts theevaporating plate 13. Theevaporating plate 13 is adapted for absorbing heat generated by one or more components (not shown) such as electronic devices. Thecondensing plate 11 dissipates heat, transferred from the evaporatingplate 13, to the ambient environment. Thefirst wick structure 12 is adhered on an inner surface of thecondensing plate 11. Thesecond wick structure 14 is adhered on an inner surface of theevaporating plate 13. Each of the supportingportions 15 is a sphere and abuts against the inner surfaces of thecondensing plate 11 and theevaporating plate 13, respectively. Thecondensing plate 11, theevaporating plate 13 and the supportingportions 15 are formed from metallic material which can be soldered and which transfers heat well. In this embodiment, thecondensing plate 11, theevaporating plate 13 and the supportingportions 15 are made of copper. - The
evaporating plate 13 includes a rectangularheat absorbing portion 131, foursidewalls 133, and two extendingportions 135. Thesidewalls 133 perpendicularly extend upwardly from four edges of theheat absorbing portion 131. The extendingportions 135 extend outwardly along opposite horizontal directions from top portions of twoopposite sidewalls 133, respectively. The extendingportions 135 are perpendicular to thesidewalls 133. Top surfaces of the extendingportions 135 and top ends of twocorresponding sidewalls 133 interconnecting the extendingportions 135 are all coplanar with one another. - The
second wick structure 14 includes afirst wick portion 141 and foursecond wick portions 143. Thefirst wick portion 141 is adhered on an inner surface of theheat absorbing portion 131. Thesecond wick portions 143 are adhered on inner surfaces of thesidewalls 133, respectively. The top surfaces of the extendingportions 135 and the top ends of the twocorresponding sidewalls 133 hermetically connect a periphery of a bottom surface of thecondensing plate 11. Four lateral side edges of thefirst wick structure 12 connect with inside surfaces of top ends of thesecond wick portions 143 of thesecond wick structure 14, respectively. The supportingportions 15 extend through thefirst wick structure 12 and thefirst wick portions 141 to directly abut against thecondensing plate 11 and theheat absorbing portion 131 of theevaporating plate 13, respectively. - Referring also to
FIGS. 3-4 , thefirst wick structure 12 is sintered copper powder made in afirst mold 20, and thesecond wick structure 14 is sintered copper powder made in asecond mold 40, as shown inFIGS. 5-8 . - The
first mold 20 includes afirst mold portion 21, and asecond mold portion 23 matching with thefirst mold portion 21. Thefirst mold portion 21 includes atop plate 213 and four elongated, spacedpressing walls 215 extending perpendicularly downwardly from an inner surface of thetop plate 213. Thesecond mold portion 23 is a rectangular container, and includes a supportingplate 231 and fourbaffling plates 233 extending perpendicularly upwardly from four edges of the supportingportion 231. A space (not labeled) is thus defined among thebaffling plates 233 over the supportingplate 231. - The
condensing plate 11 is received in thesecond mold portion 23, with lateral side edges of thecondensing plate 11 abutting against inner surfaces of thebaffling plates 233. Top ends of thebaffling plates 233 protrude up beyond thecondensing plate 11. Thefirst mold portion 21 is coupled to thesecond mold portion 23, with thepressing walls 215 received in the space and engaging with inner sides of thebaffling plates 233, respectively. The top ends of thebaffling plates 233 abut against a periphery of the inner surface of thetop plate 213. In such a state, bottom ends of thepressing walls 215 contact peripheral portions of thecondensing plate 11. Thepressing walls 215, thetop plate 213 and thecondensing plate 11 cooperatively define a rectangularfirst receiving chamber 30. - The copper powder is filled in the
first receiving chamber 30 and is sintered to form thefirst wick structure 12 on a main central portion of the inner surface of thecondensing plate 11. - The
second mold 40 includes afirst mold portion 41 and asecond mold portion 43. Referring toFIG. 5 , thefirst mold portion 41 includes anengaging plate 413, and acuboid protruding portion 415 protruding from a central portion of theengaging plate 413. Therefore each of opposite lateral ends of theengaging plate 413 exposed beyond theprotruding portion 415 forms a firstpressing portion 414, and each of two opposite front and rear ends of theengaging plate 413 exposed beyond theprotruding portion 415 forms a secondpressing portion 416. A size of each firstpressing portion 414 is larger than that of the corresponding extendingportion 135 of theevaporating plate 13. A size of each secondpressing portion 416 is larger than that of the top end of thecorresponding sidewall 133. A plurality ofcylindrical receiving holes 4151 is defined in the protrudingportion 415 to receive the supportingportions 15 therein. A height of theprotruding portion 415 is less than a height of thesidewalls 133 of theevaporating plate 13. A length of theprotruding portion 415 is less than a distance between the twocorresponding sidewalls 133 of theevaporating plate 13. A width of theprotruding portion 415 is less than a distance between the twocorresponding sidewalls 133 of theevaporating plate 13. A diameter of each receivinghole 4151 is substantially equal to or slightly greater than a diameter of each supportingportion 15, and a depth of thereceiving hole 4151 is less than the diameter of the supportingportion 15. - As shown in
FIG. 6 , thesecond mold portion 43 includes a supportingplate 431, two first extendingplates 433 and twosecond extending plates 435. The first extendingplates 433 are elongated, parallel to each other and extend upwardly from two opposite front and rear ends of the supportingplate 431. The second extendingplates 435 are elongated, parallel to each other and extend upwardly from two opposite left and right lateral ends of the supportingplate 431. The second extendingplates 435 perpendicularly interconnect the first extendingplates 433. A height of the second extendingplates 435 is less than that of the first extendingplates 433. The difference between the heights of the second extendingplates 435 and first extendingplates 433 is generally equal to a thickness of the extendingportions 135 of the evaporatingplate 13. The supportingplate 431, the first extendingplates 433 and the second extendingplates 435 cooperatively define a receivingchamber 437 to receive the evaporatingplate 13. - Referring to
FIGS. 6 and 7 , to form thesecond wick structure 14, the evaporatingplate 13 is received in the receivingchamber 437 of thesecond mold portion 43 of thesecond mold 40, with theheat absorbing portion 131 of the evaporatingplate 13 contacting the supportingplate 431 of thesecond mold portion 43. Bottom ends (as viewed inFIG. 7 ) of the second extendingplates 435 abut against the extendingportions 135 of the evaporatingplates 13, respectively; and inner sides of the second extendingplates 435 contact the twosidewalls 133 from which the extendingportions 135 extend. The other twosidewalls 133 contact inner sides of the first extendingplates 433, respectively. Bottom ends (as viewed inFIG. 7 ) of the extendingportions 135, said other twosidewalls 133, and the first extendingplates 433 are all coplanar with one another. - Referring to
FIGS. 5 and 7 , the supportingportions 15 are received in the receivingholes 4151 of the protrudingportion 415 of thefirst mold portion 41. - Referring to
FIG. 7 , thefirst mold portion 41 and the second mold portion 42 are then coupled together. In this state, the firstpressing portions 414 of thefirst mold portion 41 contact the extendingplates 135 of the evaporatingplate 13, respectively. The secondpressing portions 416 press the bottom ends of said other twosidewalls 133 and the first extendingplates 433. The protrudingportion 415 is spaced from theheat absorbing portion 131, while the supportingportions 15 contact theheat absorbing portion 131. Thesidewalls 133 of the evaporatingplate 13 surround and are spaced from the protrudingportion 415. Asecond receiving chamber 50 is thus defined between the evaporatingplate 13 and thefirst mold portion 41. - Referring to
FIG. 8 , copper powder is then filled in the second receivingchamber 50 and is sintered to form thesecond wick structure 14. The supportingportions 15 also connect with thesecond wick structure 14 by the sintering of the copper powder. In one embodiment, the supportingportions 15 become integrally connected with thesecond wick structure 14. - After the first wick structure and the
second wick structure 14 are formed, thefirst mold 20 and thesecond mold 40 are opened to obtain the condensingplate 11 and the evaporatingplate 13. The condensingplate 11 and the evaporatingplate 13 are then attached together by welding. The condensingplate 11 and evaporatingplate 13 are brought into contact with each other, and then subjected to high temperature and high pressure for a period of time. As a result, the supportingportions 15 penetrate through thefirst wick structure 12, with opposite ends of the supportingportions 15 thereby abutting against both the condensingplate 11 and the evaporatingplate 13. - It is to be understood, however, that even though numerous characteristics and advantages of various embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (17)
1. A plate-type heat pipe comprising:
a condensing plate;
an evaporating plate engaged with the condensing plate to define a hermetic container;
working fluid contained in the container; and
a spherical supporting portion in the container sandwiched between and abutting against the condensing plate and the evaporating plate.
2. The plate-type heat pipe of claim 1 , wherein a first wick structure is adhered on an inner surface of the evaporating plate, and the supporting portion extends through the first wick structure.
3. The plate-type heat pipe of claim 2 , wherein the evaporating plate comprises a heat absorbing portion adapted for contacting a heat source, a plurality of sidewalls extending upwardly from edges of the heat absorbing portion, and a plurality of extending portions extending outwardly from a plurality of the sidewalls, the extending portions hermetically connecting the condensing plate.
4. The plate-type heat pipe of claim 3 , wherein the first wick structure is adhered on inner surfaces of the sidewalls and the heat absorbing portion.
5. The plate-type heat pipe of claim 4 , wherein a second wick structure is adhered on an inner surface of the condensing plate, and the supporting portion extends through the second wick structure.
6. The plate-type heat pipe of claim 5 , wherein a periphery of the second wick structure connects a periphery of the first wick structure.
7. The plate-type heat pipe of claim 1 , wherein the supporting portion is metallic.
8. A method for manufacturing a plate-type heat pipe, the method comprising:
a) providing a first metallic sheet, a second metallic sheet and a supporting portion;
b) arranging the supporting portion between the first metallic sheet and the second metallic sheet; and
c) welding peripheries of the first and second metallic sheets together, thereby obtaining a hermetical container, the supporting portion inside the container and abutting against the first and second metallic sheets.
9. The method of claim 8 , further comprising, before b), disposing the first metallic sheet is in a first mold and forming a first wick structure on the first metallic sheet by sintering a first powder.
10. The method of claim 9 , wherein the first mold includes a first mold portion and a second mold portion matching with the first mold portion, a cavity is defined between the first mold portion and the second mold portion, the first metallic sheet is received in the cavity and abuts against inner surfaces of the second mold portion, and a first receiving chamber is defined between the first mold portion and the first metallic sheet to receive the first powder.
11. The method of claim 9 , further comprising, before b), disposing the second metallic sheet in a second mold and forming a second wick structure on the second metallic sheet by sintering a second powder.
12. The method of claim 11 , wherein the second mold comprises a first mold portion and a second mold portion matching with the first mold portion, a cavity is defined between the first mold portion and the second mold portion, the second metallic sheet is received in the cavity and abuts against inner surfaces of the second mold portion, and a second receiving chamber is defined between the first mold portion and the second metallic sheet to receive the second powder.
13. The method of claim 12 , wherein a protruding portion protrudes from the first mold portion the second mold and extends towards the second metallic sheet, and the second receiving chamber is defined between the protruding portion and the second metallic sheet.
14. The method of claim 13 , wherein a receiving hole is defined in the protruding portion, and the supporting portion is received in the receiving hole and abuts against the second metallic sheet.
15. The method of claim 14 , wherein the supporting portion becomes integrally connected to the second wick structure when the second wick structure is formed.
16. The method of claim 15 , wherein during the welding, the first and second metallic sheets are subjected to high temperature and high pressure for a predetermined period of time and the supporting portion penetrates through the first wick structure to abut against the firstmetallic sheet.
17. The method of claim 8 , wherein the supporting portion is metallic and has a spherical configuration.
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CN201010137060.X | 2010-03-31 | ||
CN201010137060XA CN102205485A (en) | 2010-03-31 | 2010-03-31 | Flat plate heat pipe and manufacturing method thereof |
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US20110240264A1 true US20110240264A1 (en) | 2011-10-06 |
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US12/770,771 Abandoned US20110240264A1 (en) | 2010-03-31 | 2010-04-30 | Plate-type heat pipe and method for manufacturing the same |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110180060A1 (en) * | 2010-01-25 | 2011-07-28 | National Yunlin University Of Science & Technology | Pavement element |
US20130248152A1 (en) * | 2012-03-22 | 2013-09-26 | Foxconn Technology Co., Ltd. | Heat pipe with one wick structure supporting another wick structure in position |
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US10470291B2 (en) * | 2017-07-21 | 2019-11-05 | Chintung Lin | Process for preparing an energy saving anti-burst heat dissipation device |
US10495387B2 (en) | 2017-03-10 | 2019-12-03 | Toyota Motor Engineering & Manufacturing North America, Inc. | Multi-layer wick structures with surface enhancement and fabrication methods |
US20200029467A1 (en) * | 2018-07-20 | 2020-01-23 | Chiun Mai Communication Systems, Inc. | Heat sink and electronic device using same |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110180060A1 (en) * | 2010-01-25 | 2011-07-28 | National Yunlin University Of Science & Technology | Pavement element |
US20130248152A1 (en) * | 2012-03-22 | 2013-09-26 | Foxconn Technology Co., Ltd. | Heat pipe with one wick structure supporting another wick structure in position |
US9549486B2 (en) * | 2013-07-24 | 2017-01-17 | Asia Vital Components Co., Ltd. | Raised bodied vapor chamber structure |
US10495387B2 (en) | 2017-03-10 | 2019-12-03 | Toyota Motor Engineering & Manufacturing North America, Inc. | Multi-layer wick structures with surface enhancement and fabrication methods |
US11340022B2 (en) * | 2017-04-28 | 2022-05-24 | Murata Manufacturing Co., Ltd. | Vapor chamber having pillars with decreasing cross-sectional area |
US10470291B2 (en) * | 2017-07-21 | 2019-11-05 | Chintung Lin | Process for preparing an energy saving anti-burst heat dissipation device |
US20190113290A1 (en) * | 2017-10-12 | 2019-04-18 | Tai-Sol Electronics Co., Ltd. | Vapor chamber with inner ridge forming passage |
US10820454B2 (en) | 2018-01-31 | 2020-10-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Vapor chamber heat spreaders with engineered vapor and liquid flow paths |
US20200029467A1 (en) * | 2018-07-20 | 2020-01-23 | Chiun Mai Communication Systems, Inc. | Heat sink and electronic device using same |
US10806051B2 (en) * | 2018-07-20 | 2020-10-13 | Chiun Mai Communication Systems, Inc. | Heat sink and electronic device using same |
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