US20100071879A1 - Method for manufacturing a plate-type heat pipe and a plate-type heat pipe obtained thereby - Google Patents
Method for manufacturing a plate-type heat pipe and a plate-type heat pipe obtained thereby Download PDFInfo
- Publication number
- US20100071879A1 US20100071879A1 US12/233,602 US23360208A US2010071879A1 US 20100071879 A1 US20100071879 A1 US 20100071879A1 US 23360208 A US23360208 A US 23360208A US 2010071879 A1 US2010071879 A1 US 2010071879A1
- Authority
- US
- United States
- Prior art keywords
- plate
- heat pipe
- wick structure
- type heat
- metal powder
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 40
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000011148 porous material Substances 0.000 claims description 15
- 238000005245 sintering Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- 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 invention relates to a method for manufacturing a plate-type heat pipe, and more particularly to a method for manufacturing a plate-type heat pipe which has a plurality of supporting members interconnecting opposite sides thereof.
- the present invention also relates to a plate-type heat pipe obtained by the method.
- a conventional plate-type heat pipe comprises an engaging plate 100 and a base plate 101 defining a trough therein.
- the heat pipe contains working fluid therein.
- a wick structure 102 is laid on an inner wall of the base plate 101 .
- the base plate 101 is used to thermally contacting with the heat-generated components.
- the engaging plate 100 is used to thermally contact with a heat dissipation member such as a heat sink to transfer heat generated by the heat-generating components to the heat dissipation member.
- the base plate 101 and the engaging plate 100 are assembled together by welding.
- the working fluid absorbs the heat and turns into vapor.
- the vapor moves, with the heat being carried, towards the engaging plate 100 of the heat pipe where the vapor is condensed into condensate after releasing the heat into the engaging plate 100 .
- the engaging plate 100 Due to different vapor pressure of the different portions of the engaging plate 100 is endured, the engaging plate 100 is prone to deform.
- the contact area between the engaging plate 100 and the heat dissipation member is decreased, and the heat generated by the heat-generating components is accumulated in the heat pipe.
- a method for manufacturing a plate-type heat pipe includes providing an elongated engaging plate and a base plate with a trough therein.
- a plurality of supporting members is provided by sintering a first metal powder and is secured on a top surface of the base plate.
- a second metal powder and a third metal powder are filled onto the base plate to enclose bottom ends of the supporting members.
- the base plate and the second and third metal powders are then heated, whereby the second metal powder and the third metal powder are turned into a first wick structure and a second wick structure respectively.
- the first wick structure securely adheres to the top surface of the base plate and the second wick structure securely adheres to the top surface of the first wick structure.
- the base plate and the supporting members are then secured to a bottom surface of the engaging plate to obtain a workpiece.
- a working fluid is injected into a space between the base plate and the engaging plate and the space is vacuumed via an opened end of the workpiece. The opened end of the workpiece is sealed to obtain the plate-type heat pipe.
- a plate-type heat pipe comprises a base plate defining a trough therein and an engaging plate hermetically secured on a top of the base plate.
- a plurality of supporting members is received in the heat pipe and interconnects the base plate and the engaging plate.
- the supporting members are formed by sintering a metal powder.
- First and second wicks are provided on a top face of the base plate in the trough. The first wick is located over the second wick and has a pore size larger than that of the second wick. The first and second wicks surround lower ends of the supporting members.
- FIG. 1 is a cross-sectional view showing a plate-type heat pipe in accordance with a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view of a plate-type heat pipe in accordance with a second embodiment of the present invention.
- FIG. 3 is a cross-sectional view of a plate-type heat pipe in accordance with a third embodiment of the present invention.
- FIG. 4 is a cross-sectional view of a plate-type heat pipe in accordance with a fourth embodiment of the present invention.
- FIG. 5 is a cross-sectional view of a plate-type heat pipe in accordance with a fifth embodiment of the present invention.
- FIG. 6 is an exploded, cross-sectional view of a related plate-type heat pipe.
- FIG. 7 is an assembled view of FIG. 6 .
- a method for manufacturing a plate-type heat pipe 10 in accordance with a first embodiment of the present invention comprises providing an elongated engaging plate 11 and a base plate 12 with a trough (not labeled) therein.
- a plurality of supporting members 16 is made of solid posts of first metal.
- the supporting members 16 are secured on a top surface of the base plate 12 .
- a second metal powder and a third metal powder are filled onto the top surface of the base plate 12 in the trough.
- the second and third powder enclose bottom ends of the supporting members 16 , wherein the third metal powder comprises a particle size exceeding that of the second metal powder.
- the base plate 12 and the second and third metal powder are heated at a high temperature to obtain a first wick structure 14 by the second metal powder and a second wick structure 15 by the third metal powder.
- the first wick structure 14 securely adheres to the top surface of the base plate 12 and the second wick structure 15 securely adheres to the top surface of the first wick structure 14 .
- the base plate 12 and the supporting members 16 are secured to a bottom surface of the engaging plate 11 to obtain a workpiece (not shown).
- a work fluid (not shown) such as water, alcohol, methanol, or the like is injected into the workpiece through an opened end (not shown) of the workpiece and then the workpiece is vacuumed through the opened end. Finally, the opened end of the workpiece is sealed to obtain the plate-type heat pipe 10 .
- the supporting members 16 are spaced from each other.
- the supporting members 16 are perpendicular to, interconnect and abut against the engaging plate 11 and the base plate 12 to enhance stability and strength of the plate-type heat pipe 10 .
- the first wick structure 14 comprises a plurality of pores which communicate with pores of the second wick structure 15 .
- the pores of the first wick structure 14 each have a pore size smaller than that of the pores of the second wick structure 15 .
- a method for manufacturing a plate-type heat pipe 20 in accordance with a second embodiment of the present invention is similar to the method of the first embodiment of the present invention, except that a fourth metal powder is applied on a periphery of each supporting member 16 to form a third wick structure 27 by sintering the fourth metal powder on the periphery of the each supporting member 16 .
- the third wick structure 27 abuts against the bottom surface of the engaging plate 11 and connects with the second wick structure 15 .
- the third wick structure 27 has a plurality of pores communicating with those of the second wick structure 15 .
- the working fluid returns to the first and second wick structures 14 , 15 of the plate-type heat pipe 20 from the third wick structure 27 when the plate-type heat pipe 20 is in use and vapor condenses into liquid on the bottom surface of the engaging plate 11 .
- a method for manufacturing a plate-type heat pipe 30 in accordance with a third embodiment of the present invention is similar to the method of the second embodiment of the present invention, except that a fifth metal powder is applied to the bottom surface of the engaging plate 11 to form a fourth wick structure 38 by sintering the fifth metal powder.
- a fifth metal powder is applied to the bottom surface of the engaging plate 11 to form a fourth wick structure 38 by sintering the fifth metal powder.
- top ends of the third wick structure 27 communicate with the fourth wick structure 38 .
- the working fluid returns to the first and second wick structures 14 , 15 of the plate-type heat pipe 30 from the third and fourth wick structures 27 , 38 when the plate-type heat pipe 30 is in use and vapor condenses into liquid on the bottom surface of the engaging plate 11 .
- a method for manufacturing a plate-type heat pipe 40 in accordance with a fourth embodiment of the present invention is similar to the method of the first embodiment of the present invention, except that the supporting members 46 are formed by sintering a first metal powder to have a plurality of pores in the supporting members 46 .
- the working fluid returns to the first and second wick structures 14 , 15 of the plate-type heat pipe 40 from supporting members 46 when the plate-type heat pipe 40 is in use and vapor condenses into liquid on the bottom surface of the engaging plate 11 .
- a method for manufacturing a plate-type heat pipe 50 in accordance with a fifth embodiment of the present invention is similar to the method of the fourth embodiment of the present invention, except that a plurality of sixth metal powder is applied to the bottom surface of the engaging plate 11 to form a fifth wick structure 57 by sintering the sixth metal powder.
- a plurality of sixth metal powder is applied to the bottom surface of the engaging plate 11 to form a fifth wick structure 57 by sintering the sixth metal powder.
- top ends of the supporting members 46 communicate with the fifth wick structure 57 .
- the working fluid returns to the first and second wick structures 14 , 15 of the plate-type heat pipe 50 from the fifth wick structure 57 and the supporting members 46 when the plate-type heat pipe 50 is in use and vapor condenses into liquid on the bottom surface of the engaging plate 11 .
Abstract
A method for manufacturing a plate-type heat pipe includes providing an elongated engaging plate and a base plate. A plurality of supporting members is secured on a top surface of the base plate. A second and third metal powders are filled onto the base plate, surrounding lower ends of the supporting members. The second and third metal powders are heated to obtain a first wick structure and a second wick structure. The first wick structure adheres to the top surface of the base plate and the second wick structure adheres to the top surface of the first wick structure. The base plate and the supporting members are secured to a bottom surface of the engaging plate to obtain a workpiece. A working fluid is injected into the workpiece and the workpiece is vacuumed to obtain the plate-type heat pipe.
Description
- 1. Field of the Invention
- The present invention relates to a method for manufacturing a plate-type heat pipe, and more particularly to a method for manufacturing a plate-type heat pipe which has a plurality of supporting members interconnecting opposite sides thereof. The present invention also relates to a plate-type heat pipe obtained by the method.
- 2. Description of Related Art
- Generally, plate-type heat pipes efficiently dissipate heat from heat-generating components such as a central processing unit (CPU) of a computer. Referring to
FIGS. 6-7 , a conventional plate-type heat pipe comprises anengaging plate 100 and abase plate 101 defining a trough therein. The heat pipe contains working fluid therein. Awick structure 102 is laid on an inner wall of thebase plate 101. Thebase plate 101 is used to thermally contacting with the heat-generated components. Theengaging plate 100 is used to thermally contact with a heat dissipation member such as a heat sink to transfer heat generated by the heat-generating components to the heat dissipation member. Thebase plate 101 and theengaging plate 100 are assembled together by welding. When heat generated by the heat-generating component is inputted into the heat pipe via itsbase plate 101, the working fluid absorbs the heat and turns into vapor. The vapor moves, with the heat being carried, towards theengaging plate 100 of the heat pipe where the vapor is condensed into condensate after releasing the heat into theengaging plate 100. Due to different vapor pressure of the different portions of theengaging plate 100 is endured, theengaging plate 100 is prone to deform. Thus, the contact area between theengaging plate 100 and the heat dissipation member is decreased, and the heat generated by the heat-generating components is accumulated in the heat pipe. - It is therefore desirable to provide a method for manufacturing a plate-type heat pipe and a plate-type heat pipe obtained by the method, which has a good heat conductivity and can overcome the limitations described.
- A method for manufacturing a plate-type heat pipe includes providing an elongated engaging plate and a base plate with a trough therein. A plurality of supporting members is provided by sintering a first metal powder and is secured on a top surface of the base plate. A second metal powder and a third metal powder are filled onto the base plate to enclose bottom ends of the supporting members. The base plate and the second and third metal powders are then heated, whereby the second metal powder and the third metal powder are turned into a first wick structure and a second wick structure respectively. The first wick structure securely adheres to the top surface of the base plate and the second wick structure securely adheres to the top surface of the first wick structure. The base plate and the supporting members are then secured to a bottom surface of the engaging plate to obtain a workpiece. Finally a working fluid is injected into a space between the base plate and the engaging plate and the space is vacuumed via an opened end of the workpiece. The opened end of the workpiece is sealed to obtain the plate-type heat pipe.
- A plate-type heat pipe comprises a base plate defining a trough therein and an engaging plate hermetically secured on a top of the base plate. A plurality of supporting members is received in the heat pipe and interconnects the base plate and the engaging plate. The supporting members are formed by sintering a metal powder. First and second wicks are provided on a top face of the base plate in the trough. The first wick is located over the second wick and has a pore size larger than that of the second wick. The first and second wicks surround lower ends of the supporting members.
- Other advantages and novel features will become more apparent from the following detailed description of preferred embodiments when taken in conjunction with the accompanying 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 a cross-sectional view showing a plate-type heat pipe in accordance with a first embodiment of the present invention. -
FIG. 2 is a cross-sectional view of a plate-type heat pipe in accordance with a second embodiment of the present invention. -
FIG. 3 is a cross-sectional view of a plate-type heat pipe in accordance with a third embodiment of the present invention. -
FIG. 4 is a cross-sectional view of a plate-type heat pipe in accordance with a fourth embodiment of the present invention. -
FIG. 5 is a cross-sectional view of a plate-type heat pipe in accordance with a fifth embodiment of the present invention. -
FIG. 6 is an exploded, cross-sectional view of a related plate-type heat pipe. -
FIG. 7 is an assembled view ofFIG. 6 . - Referring to
FIG. 1 , a method for manufacturing a plate-type heat pipe 10 in accordance with a first embodiment of the present invention comprises providing an elongatedengaging plate 11 and abase plate 12 with a trough (not labeled) therein. A plurality of supportingmembers 16 is made of solid posts of first metal. The supportingmembers 16 are secured on a top surface of thebase plate 12. A second metal powder and a third metal powder are filled onto the top surface of thebase plate 12 in the trough. The second and third powder enclose bottom ends of the supportingmembers 16, wherein the third metal powder comprises a particle size exceeding that of the second metal powder. Thebase plate 12 and the second and third metal powder are heated at a high temperature to obtain afirst wick structure 14 by the second metal powder and asecond wick structure 15 by the third metal powder. Thefirst wick structure 14 securely adheres to the top surface of thebase plate 12 and thesecond wick structure 15 securely adheres to the top surface of thefirst wick structure 14. Thebase plate 12 and the supportingmembers 16 are secured to a bottom surface of theengaging plate 11 to obtain a workpiece (not shown). A work fluid (not shown) such as water, alcohol, methanol, or the like is injected into the workpiece through an opened end (not shown) of the workpiece and then the workpiece is vacuumed through the opened end. Finally, the opened end of the workpiece is sealed to obtain the plate-type heat pipe 10. - The supporting
members 16 are spaced from each other. The supportingmembers 16 are perpendicular to, interconnect and abut against theengaging plate 11 and thebase plate 12 to enhance stability and strength of the plate-type heat pipe 10. Thefirst wick structure 14 comprises a plurality of pores which communicate with pores of thesecond wick structure 15. The pores of thefirst wick structure 14 each have a pore size smaller than that of the pores of thesecond wick structure 15. - Referring to
FIG. 2 , a method for manufacturing a plate-type heat pipe 20 in accordance with a second embodiment of the present invention is similar to the method of the first embodiment of the present invention, except that a fourth metal powder is applied on a periphery of each supportingmember 16 to form athird wick structure 27 by sintering the fourth metal powder on the periphery of the each supportingmember 16. Thethird wick structure 27 abuts against the bottom surface of theengaging plate 11 and connects with thesecond wick structure 15. Thethird wick structure 27 has a plurality of pores communicating with those of thesecond wick structure 15. Thus, the working fluid returns to the first andsecond wick structures type heat pipe 20 from thethird wick structure 27 when the plate-type heat pipe 20 is in use and vapor condenses into liquid on the bottom surface of theengaging plate 11. - Referring to
FIG. 3 , a method for manufacturing a plate-type heat pipe 30 in accordance with a third embodiment of the present invention is similar to the method of the second embodiment of the present invention, except that a fifth metal powder is applied to the bottom surface of the engagingplate 11 to form afourth wick structure 38 by sintering the fifth metal powder. When the engagingplate 11 and thebase plate 12 are assembled together, top ends of thethird wick structure 27 communicate with thefourth wick structure 38. Thus, the working fluid returns to the first andsecond wick structures type heat pipe 30 from the third andfourth wick structures type heat pipe 30 is in use and vapor condenses into liquid on the bottom surface of the engagingplate 11. - Referring to
FIG. 4 , a method for manufacturing a plate-type heat pipe 40 in accordance with a fourth embodiment of the present invention is similar to the method of the first embodiment of the present invention, except that the supportingmembers 46 are formed by sintering a first metal powder to have a plurality of pores in the supportingmembers 46. Thus, the working fluid returns to the first andsecond wick structures type heat pipe 40 from supportingmembers 46 when the plate-type heat pipe 40 is in use and vapor condenses into liquid on the bottom surface of the engagingplate 11. - Referring to
FIG. 5 , a method for manufacturing a plate-type heat pipe 50 in accordance with a fifth embodiment of the present invention is similar to the method of the fourth embodiment of the present invention, except that a plurality of sixth metal powder is applied to the bottom surface of the engagingplate 11 to form afifth wick structure 57 by sintering the sixth metal powder. When the engagingplate 11 and thebase plate 12 are assembled together, top ends of the supportingmembers 46 communicate with thefifth wick structure 57. Thus, the working fluid returns to the first andsecond wick structures fifth wick structure 57 and the supportingmembers 46 when the plate-type heat pipe 50 is in use and vapor condenses into liquid on the bottom surface of the engagingplate 11. - 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 (16)
1. A method for manufacturing a plate-type heat pipe comprising:
a) offering an elongated engaging plate and a base plate with a trough therein;
b) securing a plurality of supporting members formed by sintering a first metal powder on a top surface of the base plate;
c) filling a second metal powder and a third metal powder onto the base plate, the second and third powder enclosing bottom ends of the supporting members;
d) heating the base plate and the second and third metal powder at a high temperature to obtain a first wick structure by the second metal powder and a second wick structure by the third metal powder, wherein the first wick structure securely adheres to the top surface of the base plate and the second wick structure securely adheres to the top surface of the first wick structure;
e) securing the base plate and the supporting members to a bottom surface of the engaging plate to obtain a workpiece; and
f) injecting a work fluid into the workpiece, vacuuming the workpiece, and hermetically sealing the sintered workpiece to obtain the plate-type heat pipe.
2. The method for manufacturing a plate-type heat pipe as claimed in claim 1 , wherein the supporting members tightly abut against the engaging plate and the base plate.
3. The method for manufacturing a plate-type heat pipe as claimed in claim 2 , wherein at step c), a plurality of fourth metal powder is applied on a periphery of each supporting member, and at step d) the fourth metal powder is heated to form a third wick structure on the periphery of the each supporting member.
4. The method for manufacturing a plate-type heat pipe as claimed in claim 3 , wherein the third wick structure abuts against the bottom surface of the engaging plate and connects with the second wick structure.
5. The method for manufacturing a plate-type heat pipe as claimed in claim 4 , wherein the third wick structure has a plurality of pores communicating with those of the second wick structure.
6. The method for manufacturing a plate-type heat pipe as claimed in claim 5 , wherein at step c), a plurality of fifth metal powder is applied on a bottom surface of the engaging plate and at step d), the fifth metal powder is heated to form a fourth wick structure, pores of the fourth wick structure communicating with the pores of the third wick structure.
7. The method for manufacturing a plate-type heat pipe as claimed in claim 1 , wherein the supporting members are porous and abut against the engaging plate and the base plate.
8. The method for manufacturing a plate-type heat pipe as claimed in claim 7 , wherein at step c), a plurality of sixth metal powder is applied on a bottom surface of the engaging plate and at step d), the sixth metal powder is heated to form a fifth wick structure, pores of the fifth wick structure communicating with the pores of the supporting members.
9. The method for manufacturing a plate-type heat pipe as claimed in claim 7 , wherein the third metal powder comprises a particle size exceeding that of the second metal powder.
10. The method for manufacturing a plate-type heat pipe as in claim 1 , wherein the supporting members are spaced from each other and perpendicular to the engaging plate and the base plate.
11. A plate-type heat pipe comprising:
a base plate defining a trough in a top surface thereof;
an engaging plate secured on the top surface of the base plate over the trough;
a plurality of supporting members interconnects the top surface of the base plate in the trough and a bottom surface of the engaging plate for reinforcing a strength of the plate-type heat pipe;
a first wick structure provided on the top surface of the base plate in the trough;
a second wick structure provided on a top surface of the first wick structure, wherein the second wick structure has a pore size larger than that of the first wick structure.
12. The plate-type heat pipe as in claim 11 , wherein the supporting members each are a solid metal post.
13. The plate-type heat pipe as in claim 12 , wherein a third wick structure is formed on a periphery of each of the supporting members.
14. The plate-type heat pipe as in claim 13 , wherein a fourth wick structure is formed on the bottom surface of the engaging plate.
15. The plate-type heat pipe as in claim 11 , wherein the supporting members each are made of sintered metal powder and have a plurality of pores therein.
16. The plate-type heat pipe as in claim 15 , wherein a fifth wick structure is formed on the bottom surface of the engaging plate.
Priority Applications (1)
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US12/233,602 US20100071879A1 (en) | 2008-09-19 | 2008-09-19 | Method for manufacturing a plate-type heat pipe and a plate-type heat pipe obtained thereby |
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US12/233,602 US20100071879A1 (en) | 2008-09-19 | 2008-09-19 | Method for manufacturing a plate-type heat pipe and a plate-type heat pipe obtained thereby |
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US12/233,602 Abandoned US20100071879A1 (en) | 2008-09-19 | 2008-09-19 | Method for manufacturing a plate-type heat pipe and a plate-type heat pipe obtained thereby |
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2008
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