US20100155019A1 - Evaporator and loop heat pipe employing it - Google Patents
Evaporator and loop heat pipe employing it Download PDFInfo
- Publication number
- US20100155019A1 US20100155019A1 US12/463,379 US46337909A US2010155019A1 US 20100155019 A1 US20100155019 A1 US 20100155019A1 US 46337909 A US46337909 A US 46337909A US 2010155019 A1 US2010155019 A1 US 2010155019A1
- Authority
- US
- United States
- Prior art keywords
- tube
- circumferential wall
- partition
- shell
- evaporator
- 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
- 238000001704 evaporation Methods 0.000 claims abstract description 41
- 230000008020 evaporation Effects 0.000 claims abstract description 41
- 238000005192 partition Methods 0.000 claims abstract description 30
- 238000000638 solvent extraction Methods 0.000 claims abstract 3
- 230000003247 decreasing effect Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F28D15/043—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 forming loops, e.g. capillary pumped loops
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the disclosure relates to a heat dissipation device and, more particularly, to an evaporator and a loop heat pipe employing it.
- Loop heat pipes have excellent heat transfer performance due to their low thermal resistance, and are therefore an effective means for transfer or dissipation of heat from heat-generating components such as central processing units (CPUs) of computers.
- CPUs central processing units
- a conventional loop heat pipe includes an evaporator having a wick structure adhered to an inner wall thereof.
- the evaporator includes an evaporation chamber and a compensation chamber.
- a predetermined quantity of bi-phase working medium is contained in the evaporator.
- the wick structure disposed in the evaporation chamber absorbs heat from the CPU. A part of the heat absorbed by the wick structure in the evaporation chamber evaporates the working medium in the evaporation chamber into vapor; another part of the heat is transferred to the wick structure in the compensation chamber and evaporates the working medium in the compensation chamber into vapor.
- the compensation chamber gets a reverse vapor pressure to make thus an effective vapor pressure of the loop heat pipe increasingly decreased.
- the wick structure in the compensation chamber has a large amount of air bubbles accreted thereon to reduce a permeation rate of the working medium in the compensation chamber resulting in that the working medium is evaporated out.
- FIG. 1 is an isometric, assembled view of a loop heat pipe in accordance with an embodiment of the disclosure.
- FIG. 2 is a sectional, partially exploded view of an evaporator of the loop heat pipe of FIG. 1 , together with a part of a pipe connecting two opposite ends of the evaporator.
- FIG. 3 is a partially schematic view of an operation principle of the loop heat pipe of FIG. 1 .
- the loop heat pipe comprises an evaporator 10 , a pipe 20 , and a heat dissipating component 30 thermally engaging with the pipe 20 .
- the pipe 20 interconnects two opposite ends of the evaporator 10 to form a closed loop.
- a predetermined quantity of bi-phase working medium (see FIG. 3 ) is contained in the closed loop.
- the heat dissipating component 30 consists of a plurality of parallel spaced fins 32 coiled around the pipe 20 .
- the evaporator 10 is columnar in this embodiment.
- the evaporator 10 comprises a first tube 11 having an evaporation chamber 14 defined therein and a second tube 13 having a compensation chamber 16 defined therein and engaging with the first tube 11 .
- the first tube 11 has a partition 12 extending from a right end thereof and separating the evaporation chamber 14 from the compensation chamber 16 .
- the first tube 11 and the second tube 13 can be an integrative hollow shell having a space defined therein and disposing the partition 12 therein which divides the space into the evaporation chamber 14 and the compensation chamber 16 .
- a wick structure 18 is adhered to an inner surface of the first tube 11 and extends through the partition 12 and into the compensation chamber 16 .
- a length of the evaporation chamber 14 in an axial direction thereof is larger than that of the compensation chamber 16 .
- An outer surface of the first tube 11 is thermally connected with a heat generating electronic component such as a CPU (not shown).
- the first tube 11 comprises a first circumferential wall 110 , a first sidewall 111 and the partition 12 extending inwards perpendicularly from two opposite ends of the first circumferential wall 110 , respectively.
- the first circumferential wall 110 , the first sidewall 111 and the partition 12 cooperatively define the evaporation chamber 14 .
- the first sidewall 111 and the partition 12 define a through hole (not labeled) in a center thereof, respectively.
- the right end of the first circumferential wall 110 has an annular outer groove 112 defined in an outer surface thereof corresponding to an edge of the partition 12 .
- the second tube 13 comprises a second circumferential wall 130 and a second sidewall 131 extending inwards perpendicularly from a right end of the second circumferential wall 130 .
- a left end of the second circumferential wall 130 has an annular inner groove 132 defined in an inner surface thereof to form an insert 133 .
- the insert 133 is inserted into the outer groove 112 of the first circumferential wall 110 to make the first tube 11 and the second tube 13 engaging together, whereby the second tube 13 and the partition 12 cooperatively define the compensation chamber 16 .
- the second sidewall 131 defines a through hole (not labeled) in a center thereof.
- the pipe 20 has an end extending through the through hole of the first sidewall 111 and into the evaporation chamber 14 , and another end extending through the through hole of the second sidewall 131 and into the compensation chamber 16 .
- the wick structure 18 comprises a disc-like main body 180 , a pipe-shaped evaporation portion 182 extending perpendicularly from a left side face of the main body 180 and a cylinder protrusion 184 extending perpendicularly from a right side face of the main body 180 .
- the main body 180 and the evaporation portion 182 are located in the evaporation chamber 14
- the protrusion 184 is located in the compensation chamber 16 .
- the main body 180 has the right side face adhered to a left side face of the partition 12 , and has an outer circumferential face adhered to an inner surface of the first circumferential wall 110 .
- the main body 180 is isolated from the working medium in the compensation chamber 16 by the partition 12 for preventing the working medium from permeating the main body 180 directly.
- the evaporation portion 182 is adhered to the inner surface of the first circumferential wall 110 .
- a columnar vapor channel 140 is defined in a middle portion of the evaporation portion 182 of the wick structure 18 and communicates with the pipe 20 .
- the cross-sectional area of the vapor channel 140 is larger than that of the pipe 20 , whereby a vapor in the vapor channel 140 can flow into the pipe 20 quickly.
- the protrusion 184 extends through the through hole of the partition 12 and into the compensation chamber 16 , and absorbs the working medium into the main body 180 and the evaporation portion 182 .
- the protrusion 184 has an outer surface spaced from an inner surface of the second circumferential wall 130 .
- the wick structure 18 can, for example, consist of porous structures, such as fine grooves integrally formed at the inner surface of the first circumferential wall 110 and at the left side face of the partition 12 and extending into the compensation chamber 16 , screen mesh or fiber inserted into the evaporation chamber 14 and the compensation chamber 16 , and held against the first circumferential wall 110 , or sintered powders combined to the inner surface of the first circumferential wall 110 and the left side face of the partition 12 using a sintering process and extending into the compensation chamber 16 .
- porous structures such as fine grooves integrally formed at the inner surface of the first circumferential wall 110 and at the left side face of the partition 12 and extending into the compensation chamber 16 , screen mesh or fiber inserted into the evaporation chamber 14 and the compensation chamber 16 , and held against the first circumferential wall 110 , or sintered powders combined to the inner surface of the first circumferential wall 110 and the left side face of the partition 12 using a sintering process and extending into the compensation chamber
- the working medium is selected from a liquid which has a low boiling point such as water, methanol, or alcohol.
- the pipe 20 is made of deformable materials compatible with the working medium, such as aluminum, stainless steel, or copper.
- the working medium in the evaporation chamber 14 absorbs heat from the heat generating electronic component and evaporates into vapor.
- a positive vapor pressure is generated due to the vaporization of the working medium and propels the vaporized working medium into the pipe 20 and toward the heat dissipating component 30 .
- the vaporized working medium dissipates its heat to the heat dissipating component 30 and condenses to liquid in the pipe 20 .
- the positive vapor pressure still exists since the evaporation chamber 14 supplies the vapor continuously. The positive vapor pressure, therefore, propels the condensed working medium in the pipe 20 into the compensation chamber 16 .
- the condensed working medium is accumulated in the compensation chamber 16 and submerges the protrusion 184 of the wick structure 18 .
- the condensed working medium is absorbed by the wick structure 18 from the protrusion 184 to the main body 180 and the evaporation portion 182 , and into the evaporation chamber 14 via a capillary force of the wick structure 18 .
- the condensed working medium then evaporates to vapor thus starting another cycle in the loop heat pipe and continuously absorbing heat from the heat generating electronic component and dissipating the heat to the heat dissipating component 30 .
- the partition 12 prevents the main body 180 of the wick structure 18 from directly contacting with the working medium in the compensation chamber 16 , decreasing a contact area of the wick structure 18 with the working medium in the compensation chamber 16 , thereby decreasing a reverse evaporation area of the wick structure 18 .
- a reverse vapor pressure of the compensation chamber 16 is reduced, keeping the positive vapor pressure in a normal range.
- the protrusion 184 of the wick structure 18 extends into the working medium in the compensation chamber 16 .
- Heat that is transferred to the protrusion 184 is condensed quickly, and air bubbles on the protrusion 184 are decreased to keep a permeation rate of the working medium in the compensation chamber 16 for preventing the working medium in the evaporation chamber 14 from being evaporated out.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geometry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
- 1. Technical Field
- The disclosure relates to a heat dissipation device and, more particularly, to an evaporator and a loop heat pipe employing it.
- 2. Description of Related Art
- Loop heat pipes have excellent heat transfer performance due to their low thermal resistance, and are therefore an effective means for transfer or dissipation of heat from heat-generating components such as central processing units (CPUs) of computers.
- A conventional loop heat pipe includes an evaporator having a wick structure adhered to an inner wall thereof. The evaporator includes an evaporation chamber and a compensation chamber. A predetermined quantity of bi-phase working medium is contained in the evaporator.
- During operation of the loop heat pipe, the wick structure disposed in the evaporation chamber absorbs heat from the CPU. A part of the heat absorbed by the wick structure in the evaporation chamber evaporates the working medium in the evaporation chamber into vapor; another part of the heat is transferred to the wick structure in the compensation chamber and evaporates the working medium in the compensation chamber into vapor. The compensation chamber gets a reverse vapor pressure to make thus an effective vapor pressure of the loop heat pipe increasingly decreased. On the other hand, the wick structure in the compensation chamber has a large amount of air bubbles accreted thereon to reduce a permeation rate of the working medium in the compensation chamber resulting in that the working medium is evaporated out.
- What is needed, therefore, is a loop heat pipe which can overcome the above problems.
- Many aspects of the disclosure 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 disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 is an isometric, assembled view of a loop heat pipe in accordance with an embodiment of the disclosure. -
FIG. 2 is a sectional, partially exploded view of an evaporator of the loop heat pipe ofFIG. 1 , together with a part of a pipe connecting two opposite ends of the evaporator. -
FIG. 3 is a partially schematic view of an operation principle of the loop heat pipe ofFIG. 1 . - Referring to
FIG. 1 , a loop heat pipe in accordance with an embodiment of the disclosure is illustrated. The loop heat pipe comprises anevaporator 10, apipe 20, and aheat dissipating component 30 thermally engaging with thepipe 20. Thepipe 20 interconnects two opposite ends of theevaporator 10 to form a closed loop. A predetermined quantity of bi-phase working medium (seeFIG. 3 ) is contained in the closed loop. In this illustrated embodiment, theheat dissipating component 30 consists of a plurality of parallel spacedfins 32 coiled around thepipe 20. - Referring to
FIGS. 2-3 , theevaporator 10 is columnar in this embodiment. Theevaporator 10 comprises afirst tube 11 having anevaporation chamber 14 defined therein and asecond tube 13 having acompensation chamber 16 defined therein and engaging with thefirst tube 11. Thefirst tube 11 has apartition 12 extending from a right end thereof and separating theevaporation chamber 14 from thecompensation chamber 16. In an alternative embodiment, thefirst tube 11 and thesecond tube 13 can be an integrative hollow shell having a space defined therein and disposing thepartition 12 therein which divides the space into theevaporation chamber 14 and thecompensation chamber 16. In this embodiment, awick structure 18 is adhered to an inner surface of thefirst tube 11 and extends through thepartition 12 and into thecompensation chamber 16. A length of theevaporation chamber 14 in an axial direction thereof is larger than that of thecompensation chamber 16. An outer surface of thefirst tube 11 is thermally connected with a heat generating electronic component such as a CPU (not shown). - The
first tube 11 comprises a firstcircumferential wall 110, afirst sidewall 111 and thepartition 12 extending inwards perpendicularly from two opposite ends of the firstcircumferential wall 110, respectively. The firstcircumferential wall 110, thefirst sidewall 111 and thepartition 12 cooperatively define theevaporation chamber 14. Thefirst sidewall 111 and thepartition 12 define a through hole (not labeled) in a center thereof, respectively. The right end of the firstcircumferential wall 110 has an annularouter groove 112 defined in an outer surface thereof corresponding to an edge of thepartition 12. - The
second tube 13 comprises a secondcircumferential wall 130 and asecond sidewall 131 extending inwards perpendicularly from a right end of the secondcircumferential wall 130. A left end of the secondcircumferential wall 130 has an annularinner groove 132 defined in an inner surface thereof to form aninsert 133. Theinsert 133 is inserted into theouter groove 112 of the firstcircumferential wall 110 to make thefirst tube 11 and thesecond tube 13 engaging together, whereby thesecond tube 13 and thepartition 12 cooperatively define thecompensation chamber 16. Thesecond sidewall 131 defines a through hole (not labeled) in a center thereof. Thepipe 20 has an end extending through the through hole of thefirst sidewall 111 and into theevaporation chamber 14, and another end extending through the through hole of thesecond sidewall 131 and into thecompensation chamber 16. - The
wick structure 18 comprises a disc-likemain body 180, a pipe-shaped evaporation portion 182 extending perpendicularly from a left side face of themain body 180 and acylinder protrusion 184 extending perpendicularly from a right side face of themain body 180. Themain body 180 and theevaporation portion 182 are located in theevaporation chamber 14, and theprotrusion 184 is located in thecompensation chamber 16. - The
main body 180 has the right side face adhered to a left side face of thepartition 12, and has an outer circumferential face adhered to an inner surface of the firstcircumferential wall 110. Themain body 180 is isolated from the working medium in thecompensation chamber 16 by thepartition 12 for preventing the working medium from permeating themain body 180 directly. Theevaporation portion 182 is adhered to the inner surface of the firstcircumferential wall 110. Acolumnar vapor channel 140 is defined in a middle portion of theevaporation portion 182 of thewick structure 18 and communicates with thepipe 20. The cross-sectional area of thevapor channel 140 is larger than that of thepipe 20, whereby a vapor in thevapor channel 140 can flow into thepipe 20 quickly. Theprotrusion 184 extends through the through hole of thepartition 12 and into thecompensation chamber 16, and absorbs the working medium into themain body 180 and theevaporation portion 182. Theprotrusion 184 has an outer surface spaced from an inner surface of the secondcircumferential wall 130. - The
wick structure 18 can, for example, consist of porous structures, such as fine grooves integrally formed at the inner surface of the firstcircumferential wall 110 and at the left side face of thepartition 12 and extending into thecompensation chamber 16, screen mesh or fiber inserted into theevaporation chamber 14 and thecompensation chamber 16, and held against the firstcircumferential wall 110, or sintered powders combined to the inner surface of the firstcircumferential wall 110 and the left side face of thepartition 12 using a sintering process and extending into thecompensation chamber 16. - The working medium is selected from a liquid which has a low boiling point such as water, methanol, or alcohol. The
pipe 20 is made of deformable materials compatible with the working medium, such as aluminum, stainless steel, or copper. - In operation of the loop heat pipe, the working medium in the
evaporation chamber 14 absorbs heat from the heat generating electronic component and evaporates into vapor. A positive vapor pressure is generated due to the vaporization of the working medium and propels the vaporized working medium into thepipe 20 and toward theheat dissipating component 30. The vaporized working medium dissipates its heat to theheat dissipating component 30 and condenses to liquid in thepipe 20. The positive vapor pressure still exists since theevaporation chamber 14 supplies the vapor continuously. The positive vapor pressure, therefore, propels the condensed working medium in thepipe 20 into thecompensation chamber 16. The condensed working medium is accumulated in thecompensation chamber 16 and submerges theprotrusion 184 of thewick structure 18. The condensed working medium is absorbed by thewick structure 18 from theprotrusion 184 to themain body 180 and theevaporation portion 182, and into theevaporation chamber 14 via a capillary force of thewick structure 18. The condensed working medium then evaporates to vapor thus starting another cycle in the loop heat pipe and continuously absorbing heat from the heat generating electronic component and dissipating the heat to theheat dissipating component 30. - The
partition 12 prevents themain body 180 of thewick structure 18 from directly contacting with the working medium in thecompensation chamber 16, decreasing a contact area of thewick structure 18 with the working medium in thecompensation chamber 16, thereby decreasing a reverse evaporation area of thewick structure 18. A reverse vapor pressure of thecompensation chamber 16 is reduced, keeping the positive vapor pressure in a normal range. On the other hand, theprotrusion 184 of thewick structure 18 extends into the working medium in thecompensation chamber 16. Heat that is transferred to theprotrusion 184 is condensed quickly, and air bubbles on theprotrusion 184 are decreased to keep a permeation rate of the working medium in thecompensation chamber 16 for preventing the working medium in theevaporation chamber 14 from being evaporated out. - It is to be understood, however, that even though numerous characteristics and advantages of the present 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 (18)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN200810306508.9A CN101762194B (en) | 2008-12-24 | 2008-12-24 | Evaporator and loop type heat pipe applying same |
CN200810306508.9 | 2008-12-24 |
Publications (1)
Publication Number | Publication Date |
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US20100155019A1 true US20100155019A1 (en) | 2010-06-24 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/463,379 Abandoned US20100155019A1 (en) | 2008-12-24 | 2009-05-09 | Evaporator and loop heat pipe employing it |
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US (1) | US20100155019A1 (en) |
CN (1) | CN101762194B (en) |
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US20100307721A1 (en) * | 2009-06-05 | 2010-12-09 | Young Green Energy Co. | Loop heat pipe and manufacturing method thereof |
US20110192575A1 (en) * | 2007-08-08 | 2011-08-11 | Astrium Sas | Passive Device with Micro Capillary Pumped Fluid Loop |
JP2012193912A (en) * | 2011-03-17 | 2012-10-11 | Fujitsu Ltd | Loop heat pipe |
CN103672814A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Cooling circuit pipe and backlight module adopting cooling circuit pipe |
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US9599408B1 (en) * | 2012-03-03 | 2017-03-21 | Advanced Cooling Technologies, Inc. | Loop heat pipe evaporator including a second heat pipe |
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Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621906A (en) * | 1969-09-02 | 1971-11-23 | Gen Motors Corp | Control system for heat pipes |
US3837394A (en) * | 1973-11-09 | 1974-09-24 | Bell Telephone Labor Inc | Thermal transfer apparatus providing transfer control |
US4312402A (en) * | 1979-09-19 | 1982-01-26 | Hughes Aircraft Company | Osmotically pumped environmental control device |
US5647429A (en) * | 1994-06-16 | 1997-07-15 | Oktay; Sevgin | Coupled, flux transformer heat pipes |
US6227288B1 (en) * | 2000-05-01 | 2001-05-08 | The United States Of America As Represented By The Secretary Of The Air Force | Multifunctional capillary system for loop heat pipe statement of government interest |
US20020007937A1 (en) * | 2000-06-30 | 2002-01-24 | Kroliczek Edward J. | Phase control in the capillary evaporators |
US6698503B2 (en) * | 2001-10-29 | 2004-03-02 | Samsung Electronics Co., Ltd. | Heat transferring device having adiabatic unit |
US6810946B2 (en) * | 2001-12-21 | 2004-11-02 | Tth Research, Inc. | Loop heat pipe method and apparatus |
US20050061487A1 (en) * | 2000-06-30 | 2005-03-24 | Kroliczek Edward J. | Thermal management system |
US20050252643A1 (en) * | 2000-05-16 | 2005-11-17 | Swales & Associates, Inc. A Delaware Corporation | Wick having liquid superheat tolerance and being resistant to back-conduction, evaporator employing a liquid superheat tolerant wick, and loop heat pipe incorporating same |
US7007746B2 (en) * | 2003-02-20 | 2006-03-07 | Delta Electronics, Inc. | Circulative cooling apparatus |
US20060086482A1 (en) * | 2004-10-25 | 2006-04-27 | Thayer John G | Heat pipe with axial and lateral flexibility |
US20070107879A1 (en) * | 2005-11-15 | 2007-05-17 | Drager Medical Ag & Co., Kg | Liquid evaporator |
US20070267180A1 (en) * | 2006-05-17 | 2007-11-22 | Julie Fatemeh Asfia | Multi-layer wick in loop heat pipe |
US20080283223A1 (en) * | 2007-05-16 | 2008-11-20 | Industrial Technology Research Institute | Heat Dissipation System With A Plate Evaporator |
US20090178785A1 (en) * | 2008-01-11 | 2009-07-16 | Timothy Hassett | Composite heat pipe structure |
US20090321055A1 (en) * | 2008-06-26 | 2009-12-31 | Inventec Corporation | Loop heat pipe |
US7748436B1 (en) * | 2006-05-03 | 2010-07-06 | Advanced Cooling Technologies, Inc | Evaporator for capillary loop |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1328566C (en) * | 2005-03-08 | 2007-07-25 | 中国科学院理化技术研究所 | Deep cold loop heat tube |
JP4627212B2 (en) * | 2005-04-27 | 2011-02-09 | 株式会社フジクラ | Cooling device with loop heat pipe |
CN1995893A (en) * | 2006-01-04 | 2007-07-11 | 捷飞有限公司 | Loop type heat pipe structure |
-
2008
- 2008-12-24 CN CN200810306508.9A patent/CN101762194B/en not_active Expired - Fee Related
-
2009
- 2009-05-09 US US12/463,379 patent/US20100155019A1/en not_active Abandoned
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621906A (en) * | 1969-09-02 | 1971-11-23 | Gen Motors Corp | Control system for heat pipes |
US3837394A (en) * | 1973-11-09 | 1974-09-24 | Bell Telephone Labor Inc | Thermal transfer apparatus providing transfer control |
US4312402A (en) * | 1979-09-19 | 1982-01-26 | Hughes Aircraft Company | Osmotically pumped environmental control device |
US5647429A (en) * | 1994-06-16 | 1997-07-15 | Oktay; Sevgin | Coupled, flux transformer heat pipes |
US6227288B1 (en) * | 2000-05-01 | 2001-05-08 | The United States Of America As Represented By The Secretary Of The Air Force | Multifunctional capillary system for loop heat pipe statement of government interest |
US20050252643A1 (en) * | 2000-05-16 | 2005-11-17 | Swales & Associates, Inc. A Delaware Corporation | Wick having liquid superheat tolerance and being resistant to back-conduction, evaporator employing a liquid superheat tolerant wick, and loop heat pipe incorporating same |
US20050061487A1 (en) * | 2000-06-30 | 2005-03-24 | Kroliczek Edward J. | Thermal management system |
US20020007937A1 (en) * | 2000-06-30 | 2002-01-24 | Kroliczek Edward J. | Phase control in the capillary evaporators |
US6698503B2 (en) * | 2001-10-29 | 2004-03-02 | Samsung Electronics Co., Ltd. | Heat transferring device having adiabatic unit |
US6810946B2 (en) * | 2001-12-21 | 2004-11-02 | Tth Research, Inc. | Loop heat pipe method and apparatus |
US7007746B2 (en) * | 2003-02-20 | 2006-03-07 | Delta Electronics, Inc. | Circulative cooling apparatus |
US20060086482A1 (en) * | 2004-10-25 | 2006-04-27 | Thayer John G | Heat pipe with axial and lateral flexibility |
US20070107879A1 (en) * | 2005-11-15 | 2007-05-17 | Drager Medical Ag & Co., Kg | Liquid evaporator |
US7748436B1 (en) * | 2006-05-03 | 2010-07-06 | Advanced Cooling Technologies, Inc | Evaporator for capillary loop |
US20070267180A1 (en) * | 2006-05-17 | 2007-11-22 | Julie Fatemeh Asfia | Multi-layer wick in loop heat pipe |
US20080283223A1 (en) * | 2007-05-16 | 2008-11-20 | Industrial Technology Research Institute | Heat Dissipation System With A Plate Evaporator |
US20090178785A1 (en) * | 2008-01-11 | 2009-07-16 | Timothy Hassett | Composite heat pipe structure |
US20090321055A1 (en) * | 2008-06-26 | 2009-12-31 | Inventec Corporation | Loop heat pipe |
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US20110192575A1 (en) * | 2007-08-08 | 2011-08-11 | Astrium Sas | Passive Device with Micro Capillary Pumped Fluid Loop |
US8584740B2 (en) * | 2007-08-08 | 2013-11-19 | Astrium Sas | Passive device with micro capillary pumped fluid loop |
US20100307721A1 (en) * | 2009-06-05 | 2010-12-09 | Young Green Energy Co. | Loop heat pipe and manufacturing method thereof |
US9261309B2 (en) * | 2009-06-05 | 2016-02-16 | Young Green Energy Co. | Loop heat pipe and manufacturing method thereof |
JP2012193912A (en) * | 2011-03-17 | 2012-10-11 | Fujitsu Ltd | Loop heat pipe |
US9599408B1 (en) * | 2012-03-03 | 2017-03-21 | Advanced Cooling Technologies, Inc. | Loop heat pipe evaporator including a second heat pipe |
US10697566B2 (en) * | 2012-04-23 | 2020-06-30 | Kumkang Co., Ltd. | Methods for manufacturing metal-resin composite pipe that can be easily wound into ring shape |
US20180031151A1 (en) * | 2012-04-23 | 2018-02-01 | Kumkang Co., Ltd. | Methods for manufacturing metal-resin composite pipe that can be easily wound into ring shape |
TWI586929B (en) * | 2012-12-04 | 2017-06-11 | 鴻準精密工業股份有限公司 | Heat pipe and method of manufacturing the same |
JP2015072081A (en) * | 2013-10-02 | 2015-04-16 | 日本軽金属株式会社 | Loop type heat pipe and manufacturing method of loop type heat pipe |
CN103672814A (en) * | 2013-12-16 | 2014-03-26 | 深圳市华星光电技术有限公司 | Cooling circuit pipe and backlight module adopting cooling circuit pipe |
US9426928B2 (en) * | 2013-12-16 | 2016-08-23 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Heat dissipation pipe loop and backlight module using same |
US20150305199A1 (en) * | 2013-12-16 | 2015-10-22 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Heat dissipation pipe loop and backlight module using same |
CN106535565A (en) * | 2016-10-26 | 2017-03-22 | 维沃移动通信有限公司 | Heat dissipation structure of mobile terminal and mobile terminal |
US20190154352A1 (en) * | 2017-11-22 | 2019-05-23 | Asia Vital Components (China) Co., Ltd. | Loop heat pipe structure |
JP2019194515A (en) * | 2018-05-04 | 2019-11-07 | 泰碩電子股▲分▼有限公司 | Reflux vapor chamber |
EP3748273A1 (en) * | 2019-06-07 | 2020-12-09 | Ricoh Company, Ltd. | Evaporator, loop heat pipe, and electronic device |
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CN101762194A (en) | 2010-06-30 |
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