CN102062553B - Flat plate type heat pipe - Google Patents
Flat plate type heat pipe Download PDFInfo
- Publication number
- CN102062553B CN102062553B CN2009103095784A CN200910309578A CN102062553B CN 102062553 B CN102062553 B CN 102062553B CN 2009103095784 A CN2009103095784 A CN 2009103095784A CN 200910309578 A CN200910309578 A CN 200910309578A CN 102062553 B CN102062553 B CN 102062553B
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- CN
- China
- Prior art keywords
- capillary
- section
- flat plate
- capillary section
- lid
- 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.)
- Expired - Fee Related
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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
Abstract
The invention discloses a flat plate type heat pipe. The flat plate type heat pipe comprises a planar closed shell, a porous capillary structure and a working medium, wherein the porous capillary structure is formed on the inner wall of the shell; the working medium is accommodated in the shell; the shell comprises a heat absorbing part which is contacted with a heat source and an extension part which is extended from the heat absorbing part; the capillary structure is provided with a first capillary part which corresponds to the heat absorbing part and a second capillary part which corresponds to the extension part; and the second capillary part is provided with a plurality of hollow parts which are arranged at intervals and extended along the thickness direction of the second capillary part. Compared with the prior art, the second capillary part of the flat plate type heat pipe is provided with the hollow parts at intervals, so the storing amount of the working medium in the capillary structure is increased to prevent the heat pipe from non-water burning, a heat conduction path of the flat plate type heat pipe is shortened, and response time for evaporating the working medium in the flat plate type heat pipe is shortened.
Description
Technical field
The present invention relates to a kind of flat plate heat tube, refer to especially a kind of flat plate heat tube of stable performance.
Background technology
For solving the high density heat dissipation problem of high-speed computer, industry generally adopts the technology of utilizing the phase change principle to be dispelled the heat or conduct heat at present, such as the current products such as heat pipe (Heat Pipe), loop hot-pipe (Loop Heat Pipe) and flat plate heat tube (Vapor Chamber) commonly used.With regard to heat pipe, its because volume is little, utilize the latent heat of phase change interaction energy carry fast a large amount of heat energy, uniformity of temperature profile, simple structure, lightweight, without characteristics such as applied external force, life-span length, low thermal resistance, long-distance transmissions, the radiating requirements that meets the fields such as current computer, therefore be widely used for solving heat dissipation problem.
Flat plate heat tube belongs to a kind of of heat pipe, its operation principle is identical with the traditional type heat pipe, because thering is the heat transfer area larger than traditional type heat pipe, and more meet the high practical value of " light, thin, short, little ", and be widely applied on the electronic product of large-scale radiating surface.Flat plate heat tube normally utilizes the upper and lower two dull and stereotyped capillary structures that form a confined space and form equal thickness on the inwall of two flat boards, and fills working media.After the heat that lower plate absorption thermal source sends, the working media be attached in the capillary structure on lower plate evaporates to take away heat.Now, if capillary structure is too thick, the reaction time that in it, working media evaporates is long, and heat transfer efficiency is not high; If capillary structure is too thin, even scaling loss of drying easily occurs in capillary structure, thereby affects the service behaviour of heat pipe.
Summary of the invention
In view of this, be necessary to provide a kind of flat plate heat tube of stable performance.
A kind of flat plate heat tube, comprise a tabular seal casinghousing, be formed at inner walls the Porous capillary structure, be placed in the working media in housing, described housing comprises the extension that an endothermic section contacted with thermal source and self heat absorption section extend, described capillary structure has first capillary section and with extension corresponding second a capillary section corresponding with this endothermic section, offers some openwork parts that are spaced and extend along its thickness direction in described the second capillary section.
Compared with prior art, the second capillary section of flat plate heat tube of the present invention arranges the interior spaced openwork part that arranges, thereby increased the storage capacity of working media in the capillary structure preventing the heat pipe dry combustion method, made flat plate heat tube reduce heat conduction path simultaneously, shortened response time of working media evaporation in it.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
The accompanying drawing explanation
Fig. 1 is the cutaway view of first embodiment of the invention middle plateform formula heat pipe.
Fig. 2 is the stereogram of the extension of Fig. 1 middle plateform formula heat pipe and the 3rd capillary section thereon that is sticked.
Fig. 3 be in Fig. 2 extension and the 3rd capillary section that is sticked thereon along the cutaway view of II-II section.
Fig. 4 is the cutaway view of the extension of second embodiment of the invention middle plateform formula heat pipe and the 3rd capillary section thereon that is sticked.
Fig. 5 is the cutaway view of extension and the 3rd capillary section thereon that is sticked in third embodiment of the invention.
Fig. 6 is the cutaway view of the extension of fourth embodiment of the invention middle plateform formula heat pipe and the 3rd capillary section thereon that is sticked.
Fig. 7 is the stereogram of the second lid of fifth embodiment of the invention middle plateform formula heat pipe and the first capillary body thereon that is sticked.
The specific embodiment
Please refer to Fig. 1 and Fig. 2, the flat plate heat tube in first embodiment of the invention comprises a housing 10, is formed at a capillary structure 30 of housing 10 inwalls and is placed in the appropriate working media in housing 10.In the present embodiment, this housing 10 is roughly rectangular tabular, and understandably, in other embodiments, described flat plate heat tube can rounded other applicable shapes such as tabular grade.
This second lid 13 comprises that the endothermic section 131 of a lengthwise, self heat absorption section 131 opposite ends are tilted to, outward extending two transition parts 133, from outward extending two extensions 134 of two transition part 133 edge levels and two sidewalls 135 that extend straight up from two extensions 134.The edge of the top of sidewall 135 and the first lid 11 is supported and is tightly connected.
The first capillary body 31 is a plate body, from the first lid 11 inner surfaces, to the second lid 13 directions, is convexly equipped with, and refluxes in order to the working media that guides the first lid 11 inner surfaces, thereby accelerates the back-flow velocity of working media.
This second capillary body 33 is the sintered type capillary structure, it comprises the first capillary section 331 of a lengthwise, outside the first capillary section 331 opposite ends are tilted to, upwardly extending 2 second capillary sections 333, from each second capillary section 333 levels outward extending 1 the 3rd capillary section 335 and one the 4th capillary section 337 of extending straight up from each the 3rd capillary section 335.Spaced between the upper surface of capillary section 331, the second capillary section 333 and the 3rd capillary section 335 of the lower surface of the first capillary body 31 and the second capillary body 33, can diffuse to rapidly the whole space that the first capillary body 31 and the second capillary body 33 enclose while making the working media evaporation.
Please consult Fig. 3, the first capillary section 331 is attached at the inner surface of the second lid 13 endothermic sections 131 and can be in certain embodiments a plate body simultaneously.This 2 second capillary section 333 is attached at respectively the upper surface of the second lid 13 2 transition parts 133, and its thickness equates with the 3rd capillary section 335.This 2 the 3rd capillary section 335 is attached at the upper surface of the second lid 13 extensions 134.The 3rd capillary section 331 is along on the length of extension 134 and width, being formed with some being equidistantly spaced, the regular openwork part of arranging, the aperture of this openwork part is much larger than the capillary aperture of the 3rd capillary section 335, it can be through hole 3353 in certain embodiments, appropriate working media be filled to each through hole 3353 so that in the second capillary body 33 content of working media with respect to the increase in classic flat-plate formula heat tube capillary structure, so, during work, after some work medium in the first capillary section 331 is subject to thermal evaporation, working media in the 3rd capillary section 335 transfers in the first capillary section 331 by the second capillary section 333, to prevent 331 dry combustion methods of the first capillary section.This 2 the 4th capillary section 337 is attached at respectively the junction of the inner surface of sidewall 135 of the second lid 13 and sidewall 135 and extension 335.
When flat plate heat tube of the present invention is used, the endothermic section 131 of the second lid 13 absorbs the heat of thermal source, working medias in the first capillary section 331 of the second capillary body 33 be sticked on it are subject to thermal evaporation, and the appropriate working medias in the second capillary section 333 and the 3rd capillary section 335 also are subject to thermal evaporation simultaneously.These working medias in steam condition are condensed into liquid working media after the first lid 11 heat radiations.The working media of these condensations is back to the second capillary body 33 along the first capillary body 31.Wherein, because the capillary force of the first capillary section 331 is large than the 3rd capillary section 335, when the working media in the first capillary section 331 is subject to thermal evaporation, its capillary force will guide the working media in the 3rd capillary section 335 to be supplemented in it to prevent dry combustion method.When cooling working media refluxes, because the capillary force effect of the first capillary section 331 first is supplemented in the first capillary section 331 working media, then along with excessive working media is accumulated because height and pressure differential flow to via the first capillary structure 331 in the through hole 3353 of the 3rd capillary section 335.Because the 3rd capillary section 335 can store more working media with respect to the capillary structure in the classic flat-plate formula heat pipe that through hole 3353 is not set, therefore the more traditional flat plate heat tube of use power of flat plate heat tube of the present invention promotes in a large number.
Refer to Fig. 4, the structural similarity of the structure of second embodiment of the invention middle plateform formula heat pipe and the first embodiment middle plateform formula heat pipe, its main distinction is: the 3rd capillary section 335 bottoms, with through hole 3353 corresponding positions be provided with the 5th capillary section 332 that a thickness is the 3rd capillary section 335 thickness 1/10 ~ 4/5.Each the 5th capillary section 332 is attached at the upper surface of the second lid 13 and the 3rd capillary section 335 of edge connecting through hole 3353 each bottom edge, thereby makes each through hole 3353 form the blind hole of an end sealing.Because the 5th capillary section 332 is thinner, thereby can shorten the conducting path of thermal source heat with respect to the 3rd capillary section 335, improve heat transfer efficiency, thereby make the working media rapid evaporation in it.Simultaneously, because the thickness of the 3rd capillary section 335 is larger, the working media in it will be supplemented in the 5th capillary section 332, thereby prevent that it from dryouting.
Refer to Fig. 5, the structural similarity of the structure of third embodiment of the invention middle plateform formula heat pipe and the second embodiment middle plateform formula heat pipe, its main distinction is: the 3rd capillary section 335 bottoms, with through hole 3353 corresponding positions, be provided with the 5th capillary section 334 that a thickness reduces to the relative other end gradually from an end, prismatoid.Understandably, the arrangement mode of each the 5th capillary section 334 is identical, and the thickness of each the 5th capillary section 334 all changes in the same direction; Or the arrangement mode of adjacent 2 the 5th capillary sections 334 is contrary, be that on same direction, the two adjacent less or larger ends of the 5th capillary section 334 thickness connect the lower end of the 3rd capillary section 335 relative both sides relatively and respectively, thereby guide the 3rd capillary section 335 interior working medias that the 5th capillary section 334 that flows to of gradient is arranged.
Refer to Fig. 6, the structural similarity of the structure of fourth embodiment of the invention middle plateform formula heat pipe and the second embodiment middle plateform formula heat pipe, its main distinction is: the 3rd capillary section 335 bottoms, with through hole 3353 corresponding positions be provided with imploded arcs body the 5th capillary body 336 that a thickness increases progressively to opposite end from middle part.Understandably, the longitudinal section of the 5th capillary body 336 can be other applicable shapes such as triangle, prismatic.
Understandably, in the above-mentioned second to the 4th embodiment, because between the first capillary section of flat plate heat tube evaporation ends of the present invention and the 5th capillary section, thering is thickness difference, store working media in the first capillary section and the 5th capillary section and each blind hole simultaneously, make flat plate heat tube when having reduced heat conduction path, having accelerated the working media evaporation, reach and take into account the effect that prevents that working media from dryouting.
Refer to Fig. 7, the structural similarity of the structure of fifth embodiment of the invention middle plateform formula heat pipe and the second embodiment middle plateform formula heat pipe, its main distinction is: the first capillary section 331 somely is equidistantly spaced along being formed with on the length of endothermic section 131 and width, the regular openwork part of arranging, the aperture of this openwork part is much larger than the capillary aperture of the first capillary section 331, it can be through hole 3313 in certain embodiments, thereby the part that endothermic section 131 upper surfaces are corresponding with through hole 3313 is exposed, and directly contacted with working media.So arrange, make the advantage of the first capillary section 331 with screen type capillary structure and sintered type capillary structure.
Claims (8)
1. a flat plate heat tube, comprise a tabular seal casinghousing, be formed at the Porous capillary structure of inner walls, be placed in the working media in housing, described capillary structure comprises one first capillary body and one second capillary body, described housing comprises the first lid of a lengthwise and one second lid be tightly connected with the first lid, the inner surface of described the first lid described the first capillary body that has been sticked, described the second lid comprises an endothermic section contacted with thermal source, self heat absorption section opposite end is tilted to, outward extending two transition parts, reach two sidewalls that extend straight up from two extensions from outward extending two extensions of two transition part edge levels, the second capillary of described capillary structure is shown consideration for and is located on the inner surface of described the second lid, there is first a capillary section corresponding with this endothermic section, from the first capillary section opposite end, be tilted to, stretch out and be attached at 2 second capillary sections on described two transition parts, stretch out and be attached at the 3rd capillary section of 2 on extension and extend upward and be attached at the 4th capillary section of 2 on sidewall from the 3rd capillary section from the second capillary section level, it is characterized in that: offer some openwork parts that are spaced and extend along its thickness direction in described the 3rd capillary section.
2. flat plate heat tube as claimed in claim 1, is characterized in that: offer equally the openwork part that is spaced and extends along its thickness direction in described the first capillary section.
3. flat plate heat tube as claimed in claim 2, it is characterized in that: described openwork part is through hole.
4. flat plate heat tube as claimed in claim 3, it is characterized in that: the bottom that described each openwork part contacts with housing is formed with the 5th thin capillary section of the second capillary section and the 3rd capillary section that a thickness is more corresponding, described the 5th capillary section is attached at the upper surface of the second lid and the 3rd capillary section of edge each bottom edge of connecting through hole, thereby makes each through hole form the blind hole of an end sealing.
5. flat plate heat tube as claimed in claim 4, is characterized in that: the longitudinal section of described the 5th capillary section is rectangular, trapezoidal or thickness increases progressively to opposite end from middle part indent arc, triangle or prismatic.
6. flat plate heat tube as claimed in claim 1, it is characterized in that: described the first capillary section is the sintered type capillary structure.
7. flat plate heat tube as claimed in claim 6, it is characterized in that: the aperture of described openwork part is much larger than the capillary aperture of the first capillary section.
8. flat plate heat tube as claimed in claim 6, is characterized in that: in described the first capillary section, openwork part is not set.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103095784A CN102062553B (en) | 2009-11-12 | 2009-11-12 | Flat plate type heat pipe |
| US12/698,998 US20110108243A1 (en) | 2009-11-12 | 2010-02-02 | Plate-type heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103095784A CN102062553B (en) | 2009-11-12 | 2009-11-12 | Flat plate type heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102062553A CN102062553A (en) | 2011-05-18 |
| CN102062553B true CN102062553B (en) | 2013-12-04 |
Family
ID=43973273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103095784A Expired - Fee Related CN102062553B (en) | 2009-11-12 | 2009-11-12 | Flat plate type heat pipe |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20110108243A1 (en) |
| CN (1) | CN102062553B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120148967A1 (en) * | 2010-12-13 | 2012-06-14 | Thomas Thomas J | Candle wick including slotted wick members |
| CN103363829B (en) * | 2012-04-03 | 2016-12-28 | 富瑞精密组件（昆山）有限公司 | Heat pipe |
| FR3027379B1 (en) * | 2014-10-15 | 2019-04-26 | Euro Heat Pipes | FLAT CALODUC WITH TANK FUNCTION |
| CN105636406A (en) * | 2014-11-07 | 2016-06-01 | 泰硕电子股份有限公司 | Radiating module of mobile device |
| US10622282B2 (en) * | 2017-07-28 | 2020-04-14 | Qualcomm Incorporated | Systems and methods for cooling an electronic device |
| CN107621184A (en) * | 2017-08-29 | 2018-01-23 | 苏州天脉导热科技有限公司 | Superconduction soaking plate |
| CN110740611A (en) * | 2018-07-20 | 2020-01-31 | 深圳富泰宏精密工业有限公司 | Radiator and electronic device with same |
| CN110780519B (en) * | 2019-09-29 | 2021-10-19 | 深圳市火乐科技发展有限公司 | Projector with a light source |
| CN113494862A (en) * | 2020-03-19 | 2021-10-12 | 亚浩电子五金塑胶（惠州）有限公司 | Heat pipe |
| WO2023057730A1 (en) * | 2021-10-07 | 2023-04-13 | Airbus Defence And Space Sas | Two-phase heat-transfer device with liquid overflow tank |
| TWI799247B (en) * | 2022-04-28 | 2023-04-11 | 邁萪科技股份有限公司 | Vapor chamber and heat pipe combined structure |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3164518B2 (en) * | 1995-12-21 | 2001-05-08 | 古河電気工業株式会社 | Flat heat pipe |
| US5642776A (en) * | 1996-02-27 | 1997-07-01 | Thermacore, Inc. | Electrically insulated envelope heat pipe |
| US6269866B1 (en) * | 1997-02-13 | 2001-08-07 | The Furukawa Electric Co., Ltd. | Cooling device with heat pipe |
| JP2911441B1 (en) * | 1998-04-03 | 1999-06-23 | 伊藤 さとみ | Heat pipe, method of manufacturing the same, and heat dissipation structure using the same |
| US6293333B1 (en) * | 1999-09-02 | 2001-09-25 | The United States Of America As Represented By The Secretary Of The Air Force | Micro channel heat pipe having wire cloth wick and method of fabrication |
| JP2002022379A (en) * | 2000-07-06 | 2002-01-23 | Showa Denko Kk | Heat pipe |
| US6388882B1 (en) * | 2001-07-19 | 2002-05-14 | Thermal Corp. | Integrated thermal architecture for thermal management of high power electronics |
| US20040011509A1 (en) * | 2002-05-15 | 2004-01-22 | Wing Ming Siu | Vapor augmented heatsink with multi-wick structure |
| US6994152B2 (en) * | 2003-06-26 | 2006-02-07 | Thermal Corp. | Brazed wick for a heat transfer device |
| WO2005006395A2 (en) * | 2003-06-26 | 2005-01-20 | Thermal Corp. | Heat transfer device and method of making same |
| JP2005042939A (en) * | 2003-07-22 | 2005-02-17 | Takehara Tsutomu | Thermosyphon device, and cooling and heating device and method and plant growing method using the same |
| US7506682B2 (en) * | 2005-01-21 | 2009-03-24 | Delphi Technologies, Inc. | Liquid cooled thermosiphon for electronic components |
| CN100420912C (en) * | 2005-06-08 | 2008-09-24 | 财团法人工业技术研究院 | Combined capillary structure for heat transfer assembly |
-
2009
- 2009-11-12 CN CN2009103095784A patent/CN102062553B/en not_active Expired - Fee Related
-
2010
- 2010-02-02 US US12/698,998 patent/US20110108243A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN102062553A (en) | 2011-05-18 |
| US20110108243A1 (en) | 2011-05-12 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: NANTONG HUACHENG LIGHTING ELECTRICAL APPLIANCE CO. Free format text: FORMER OWNER: FUHUAI (SHENZHENG) PRECISION INDUSTRY CO., LTD. Effective date: 20141115 Free format text: FORMER OWNER: HONGZHUN PRECISION INDUSTRY CO., LTD. Effective date: 20141115 |
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Free format text: CORRECT: ADDRESS; FROM: 518109 SHENZHEN, GUANGDONG PROVINCE TO: 226000 NANTONG, JIANGSU PROVINCE |
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Effective date of registration: 20141115 Address after: Tongzhou District Ping Chao Zhen Wan Zi tou Cun, Jiangsu city of Nantong province 226000 Patentee after: Nantong Huacheng Lighting Electrical Appliance Co. Ltd. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Patentee before: Fuhuai (Shenzheng) Precision Industry Co., Ltd. Patentee before: Foxconn Precision Industry Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: NANTONG ZHENGPING PHOTO-ELECTRIC EQUIPMENTS CO., L Free format text: FORMER OWNER: NANTONG HUACHENG LIGHTING ELECTRICAL APPLIANCE CO., LTD. Effective date: 20150215 |
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Free format text: CORRECT: ADDRESS; FROM: 226000 NANTONG, JIANGSU PROVINCE TO: 226353 NANTONG, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150215 Address after: Tongzhou District Pingchao Town Village 226353 head of Nantong city in Jiangsu Province Patentee after: Nantong Zhengping Photoelectric Equipment Co. Ltd. Address before: Tongzhou District Ping Chao Zhen Wan Zi tou Cun, Jiangsu city of Nantong province 226000 Patentee before: Nantong Huacheng Lighting Electrical Appliance Co. Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20181112 |