CN1849049A - Flat column shape thermal tube - Google Patents
Flat column shape thermal tube Download PDFInfo
- Publication number
- CN1849049A CN1849049A CNA2006100504795A CN200610050479A CN1849049A CN 1849049 A CN1849049 A CN 1849049A CN A2006100504795 A CNA2006100504795 A CN A2006100504795A CN 200610050479 A CN200610050479 A CN 200610050479A CN 1849049 A CN1849049 A CN 1849049A
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- CN
- China
- Prior art keywords
- flat
- capillary structure
- porous capillary
- tube body
- column shape
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A flat-shaped cylindrical heat tube consists of bottom plate, flat-shaped tube, top cover and air vent tube. It is featured as setting flow guide body in porous capillary structure on wall surface and bottom plate of flat-shaped tube and support body in porous capillary structure between two flat wall surfaces of flat-shaped tube, utilizing said support body and low guide body to form circulation channel of operation liquid being absorbed in said support body and said flow guide body.
Description
Technical field
The present invention relates to a kind of heat pipe, the flat column shape thermal tube that especially a kind of end face that is used for heat-generating electronic elements (comprising computer CPU, video card VGA) is heated.
Background technology
Along with surprising speed development and the miniaturization of electronic products such as computer, communication, photoelectric lighting LED with " Moore's Law (Moor ' s Law) " geometric progression, the Heat-treatment Problem of deriving relatively also becomes to increasing, and density of heat flow rate also promotes thereupon.How to solve this heat dissipation problem in limited space, guarantee the normal running of electronic product, be that countries in the world heat radiation module producer and related scientific research mechanism strengthen the scientific research input, actively seek and research and develop new and effective, as to be fit to electronic product development need of future generation radiating subassembly.
Heat pipe is a kind of small amount of liquid working medium of injecting in the cavity of sealing, utilizes evaporation of liquid and condensation to come quick conductive, is the existing the fastest heat transfer element of heat conduction.With the heat radiation module that heat pipe is made as high-performance heat transfer components, begun to enter heat-generating electronic elements (comprising computer CPU) heat radiation module market, and progressively substituted existing entity heat radiation module.Heat pipe heat radiation module commonly used is provided with the fin that plurality of layers stacks at the L shaped or U-shaped small heat pipe of welding more than one on the substrate on small heat pipe.Direct and the substrate contacts of heat-generating electronic elements is given heat pipe by substrate with heat conduction during use, and heat pipe is passed to fin with heat again, in the side of fin fan is installed, and fan forces a plurality of fin of blows air over that heat is distributed in the surrounding air.
Because small heat pipe and substrate weld together, the heat that electronic component produces at first conducts to substrate, gives heat pipe with heat conduction again by substrate, increased thermal resistance, and the difficulty of processing of dress fin increases on many small heat pipes, and cost is higher, has influenced the large-scale application of this heat-pipe radiator.
Summary of the invention
In order to overcome the deficiency of existing heat-pipe radiator, the invention provides a kind of flat column shape thermal tube, an end face (base plate) of this flat column shape thermal tube is a heating surface, directly contact with heat-generating electronic elements, the whole flat outer surface of flat column shape thermal tube is a radiating surface, heat sink assembly can be set thereon constitute the heat radiation module, the cooling surface area that is characterized in heat pipe is big, fin efficiency is high, can reduce thermal resistance, increase area of dissipation, improve radiating efficiency and heat radiation power, alleviate the weight of radiator.
The present invention solves the technical scheme that its technical problem adopts: this flat column shape thermal tube comprises base plate, flat tube body, blast pipe, top cover, porous capillary structure baffle, porous capillary structure supporter, constitute seal chamber by base plate, flat tube body, top cover, blast pipe, inside is vacuum state; The lower end of flat tube body is provided with base plate, and the upper end of flat tube body is provided with top cover, and top cover is provided with blast pipe, and blast pipe is sealing state; Flat tube body internal face and plate inner surface are provided with the porous capillary structure baffle; Be provided with the porous capillary structure supporter between the inner two flat walls of flat tube body, supporter is local to be contacted with top cover, be communicated with formation hydraulic fluid circulation canal with the porous capillary structure baffle of flat tube body internal face and plate inner surface, in baffle and supporter, be adsorbed with hydraulic fluid; Base plate directly contacts heat absorption as heating surface with heat-generating electronic elements, and the flat tube external surface is a radiating surface, combines heat radiation with heat sink assembly.
The effect that the present invention is useful is: the base plate of flat column shape thermal tube directly contacts heat absorption as heating surface with heat-generating electronic elements, has reduced the welding of prior art heat pipe and substrate and the thermal conduction resistance of increase; The flat tube external surface is long-pending big, can fin be set on two surfaces, is equivalent to the area of two flat heat pipe radiators, and thermal resistance is little.Flat column shape thermal tube is inner by hydraulic fluid evaporation and condensation phase-change heat transfer, and heat conduction speed is fast, heat-transfer capability big, the hull-skin temperature of flat tube body is even.Sinter layer on the flat column shape thermal tube internal backplane has increased heat transfer area, has strengthened evaporation heat transfer; Flat tube body internal face baffle increases heat transfer area, has strengthened the condensation of steam; Baffle on the plate inner surface, flat tube body internal face baffle and flat tube body inner support body are interconnected, the good circulation passage that provides hydraulic fluid to reflux; Flat tube body inner support body can effectively stop the distortion of the flat tube body both sides wall that causes because of the inside cavity vacuum.Therefore the heat radiation module that utilizes this invention to make, heat-sinking capability is big, thermal resistance is little, in light weight, wind resistance is little, noise is low, can satisfy electronic component to short, little, light, thin, the high-power requirement of radiator.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is a sectional structure schematic diagram of the present invention;
Flat tube body, baffle, supporter schematic top plan view among the concrete embodiment 1 of Fig. 3 the present invention;
Flat tube body, baffle, supporter schematic top plan view among the concrete embodiment 2 of Fig. 4 the present invention;
Flat tube body, baffle, supporter schematic top plan view among the concrete embodiment 3 of Fig. 5 the present invention;
Flat tube body, baffle, supporter schematic top plan view among the concrete embodiment 4 of Fig. 6 the present invention;
Description of reference numerals: base plate 1, flat tube body 2, top cover 3, blast pipe 4, porous capillary structure baffle 5, porous capillary structure supporter 6.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
With reference to Fig. 1, Fig. 2, this flat column shape thermal tube comprises base plate 1, flat tube body 2, top cover 3, blast pipe 4, porous capillary structure baffle 5, porous capillary structure supporter 6.This flat column shape thermal tube is by base plate 1, flat tube body 2, and top cover 3, blast pipe 4 constitutes seal chambers, and inside is vacuum state; The lower end of flat tube body 2 is provided with base plate 1, and base plate 1 is one-body molded with flat tube body 2, or two weld together, and base plate 1 is identical with the overall dimension of flat tube body 2, or base plate 1 is greater than the external dimensions of flat tube body 2.Top cover 3 is located at the top of flat tube body 2, welds together by welding manner and flat tube body 2, and top cover 3 is provided with through hole, is provided with blast pipe 4 in the through hole, by welding manner blast pipe 4 and top cover 3 is welded together.In the cavity of flat column shape thermal tube, inject hydraulic fluid by blast pipe 4, after by blast pipe 4 air of flat column shape thermal tube inside being extracted out, again blast pipe 4 usefulness clamps and welding manner are sealed.Flat tube body 2 internal faces and base plate 1 inner surface are provided with certain thickness porous capillary structure baffle 5, porous capillary structure baffle 5 is counted the copper powder high temperature sintering by certain order and is formed, or silk screen capillary structure with certain capillary force, or the fiber hair fine texture, or other capillary structure materials with certain hair suction constitute.Between two flat horizontal surfaces of flat tube body 2, be provided with porous capillary structure supporter 6 vertically, porous capillary structure supporter 6 is communicated with the wall of top cover 3, flat tube body 2 and the porous capillary structure baffle 5 of base plate 1 inner surface, constitute continuous hydraulic fluid circulation canal, porous capillary structure supporter 6 is counted the copper powder high temperature sintering by certain order and is formed, or the screen net structure with certain intensity and capillary force, or other materials with certain hair suction and intensity constitute.
With reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6, the shape of flat tube body is that flat elliptical cylinder-shape or tabular square column type or tabular two ends are the cylindricality of semicircle.The profile of porous capillary structure supporter 6 is wave plate shapes, or the combination of a plurality of square duct or the combination of a plurality of circular channel or the combination of square duct and circular channel or the combination of square duct and half elliptic passage.Be interconnected the circulation passage of the steam that produces as the hydraulic fluid evaporation between 6 passages of porous capillary structure supporter.Porous capillary structure supporter 6 and porous capillary structure baffle 5 can be made with same material, or as a whole through high temperature sintering with copper powder, or make an integral body with welding method.Porous capillary structure supporter 6 is arranged between two flat walls of flat tube body 2, can effectively stop the mechanical deformation that causes 2 two flat walls of flat tube body because of the seal chamber inner vacuum.
During use, the base plate of flat column shape thermal tube directly contacts with heat-generating electronic elements as heating surface, and the flat tube external surface is a radiating surface, combines with heat sink assembly.The fin composition heat radiation module that plurality of layers stacks normally is set, parallel from the side each fin surface of blowing over of wind on the external wall of flat tube; Or two fans are contained in respectively on the fin of flat tube body both sides.Heat-generating electronic elements is passed to heat the base plate of flat column shape thermal tube, hydraulic fluid in plate inner surface porous capillary structure baffle absorbs heat and evaporates and become steam, steam flows to flat tube body wall face along passage between porous capillary structure supporter and the porous capillary structure baffle, be condensed into liquid in the heat release of flat tube body internal face, heat is passed to and the close-fitting heat sink assembly of body, be dispersed in the surrounding environment by wind again.In the steam heat release of flat tube body internal face and the liquid of condensation turns back in the plate inner surface porous capillary structure baffle under the capillarity of porous capillary structure baffle and porous capillary structure supporter, replenish the hydraulic fluid that reduces because of evaporation on the base plate, thereby guarantee that hydraulic fluid continuously evaporates and condensation cycle, the heat that heat-generating electronic elements is produced is passed to heat sink assembly fast continuously, is dispersed in the surrounding environment again.Because flat column shape thermal tube utilizes the principle of evaporative condenser phase-change heat transfer to realize heat conduction, so rate of heat transfer is very fast, heat-transfer capability is big, and whole flat tube surface temperature is even, and thermal resistance is little; Adopt the flat structure, external surface area is big, and the heat radiation module volume of composition is little, and windage is little, and noise is low; Flat column shape thermal tube is the hollow sealing cavity body structure, and is in light weight; By the heat radiation module that this high-performance heat transfer components of flat column shape thermal tube is formed, can satisfy that heat-generating electronic elements is big to radiator heat-dissipation power, volume is little, the requirement of in light weight, stable performance.
Claims (10)
1, a kind of flat column shape thermal tube, comprise base plate (1), flat tube body (2), top cover (3), blast pipe (4), porous capillary structure baffle (5), porous capillary structure supporter (6), it is characterized in that: constitute seal chamber by base plate (1), flat tube body (2), top cover (3), blast pipe (4) as heating surface, inside is vacuum state; The lower end of flat tube body (2) is provided with base plate (1), and the upper end of flat tube body (2) is provided with top cover (3), and top cover (3) is provided with blast pipe (4), and blast pipe (4) is sealing state; Flat tube body (2) internal face and base plate (1) inner surface are provided with porous capillary structure baffle (5); Be provided with at least one porous capillary structure supporter (6) between the inner two flat walls of flat tube body (2), porous capillary structure supporter (6) is local to be contacted with top cover (3), be communicated with formation hydraulic fluid circulation canal with the porous capillary structure baffle (5) of flat tube body (2) internal face and base plate (1) inner surface, in porous capillary structure baffle (5) and porous capillary structure supporter (6), be adsorbed with hydraulic fluid.
2, flat column shape thermal tube according to claim 1 is characterized in that: described flat tube body (2) is shaped as flat elliptical cylinder-shape, or the tabular square column type, or the tabular two ends are the cylindricality of semicircle.
3, flat column shape thermal tube according to claim 1 is characterized in that: described base plate (1) is one-body molded with flat tube body (2), or two weld together.
4, flat column shape thermal tube according to claim 1 is characterized in that: described porous capillary structure baffle (5) is that pure copper powder is once sintered on flat tube body (2) internal face and base plate (1) inner surface through high temperature.
5, flat column shape thermal tube according to claim 1 is characterized in that: described porous capillary structure baffle (5) is to be made of the silk screen capillary structure material with certain capillary force, or the fiber hair fine texture.
6, flat column shape thermal tube according to claim 1 is characterized in that: to be pure copper powder form through high temperature is once sintered described porous capillary structure supporter (6).
7, flat column shape thermal tube according to claim 1 is characterized in that: described porous capillary structure supporter (6) is to be made of the web material with certain intensity and capillary force.
8, according to claim 1 or 4 or 6 described flat column shape thermal tubes, it is characterized in that: described porous capillary structure baffle (5) and porous capillary structure supporter (6) are through the once sintered overall structure that forms of high temperature by pure copper powder.
9, according to claim 1 or 6 or 7 described flat column shape thermal tubes, it is characterized in that: described porous capillary structure supporter (6) is a wave plate shape, or the combination of a plurality of square duct or the combination of a plurality of circular channel or the combination of square duct and circular channel or the combination of square duct and half elliptic passage.
10, according to claim 1 or 6 or 7 described flat column shape thermal tubes, it is characterized in that: be interconnected the circulation passage of the steam that produces as the hydraulic fluid evaporation between each passage of described porous capillary structure supporter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100504795A CN1849049A (en) | 2006-04-20 | 2006-04-20 | Flat column shape thermal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100504795A CN1849049A (en) | 2006-04-20 | 2006-04-20 | Flat column shape thermal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1849049A true CN1849049A (en) | 2006-10-18 |
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ID=37078358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100504795A Pending CN1849049A (en) | 2006-04-20 | 2006-04-20 | Flat column shape thermal tube |
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| Country | Link |
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| CN (1) | CN1849049A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846471A (en) * | 2010-05-15 | 2010-09-29 | 中山伟强科技有限公司 | Soaking plate |
| CN102003903A (en) * | 2009-08-31 | 2011-04-06 | 富准精密工业(深圳)有限公司 | Heat pipe and heat-radiating device using same |
| CN102410469A (en) * | 2010-09-26 | 2012-04-11 | 佛山市国星光电股份有限公司 | Street lamp holder and manufacturing method |
| CN101566440B (en) * | 2008-04-23 | 2013-01-30 | 中山伟强科技有限公司 | Sintered soaking plate and manufacturing method thereof |
| CN102967164A (en) * | 2012-11-26 | 2013-03-13 | 华南理工大学 | Heat tube bundle |
| CN103629961A (en) * | 2012-08-21 | 2014-03-12 | 邱维廉 | Uniform temperature plate and manufacturing method thereof |
| CN104333324A (en) * | 2014-11-13 | 2015-02-04 | 贵州新能绿色能源有限公司 | Solar photovoltaic photo-thermal integrated energy conversion component |
| CN106839845A (en) * | 2012-01-18 | 2017-06-13 | 张跃 | Hot wing |
| CN109066013A (en) * | 2018-08-09 | 2018-12-21 | 华霆（合肥）动力技术有限公司 | Liquid stream flat tube and battery system |
| CN110278686A (en) * | 2019-06-03 | 2019-09-24 | Oppo广东移动通信有限公司 | Heat-dissipating pipe and preparation method thereof and electronic equipment |
| CN113819783A (en) * | 2021-09-10 | 2021-12-21 | 联想(北京)有限公司 | Heat pipe and manufacturing method thereof |
-
2006
- 2006-04-20 CN CNA2006100504795A patent/CN1849049A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566440B (en) * | 2008-04-23 | 2013-01-30 | 中山伟强科技有限公司 | Sintered soaking plate and manufacturing method thereof |
| CN102003903A (en) * | 2009-08-31 | 2011-04-06 | 富准精密工业(深圳)有限公司 | Heat pipe and heat-radiating device using same |
| CN102003903B (en) * | 2009-08-31 | 2013-07-03 | 富准精密工业(深圳)有限公司 | Heat pipe and heat-radiating device using same |
| CN101846471A (en) * | 2010-05-15 | 2010-09-29 | 中山伟强科技有限公司 | Soaking plate |
| CN102410469A (en) * | 2010-09-26 | 2012-04-11 | 佛山市国星光电股份有限公司 | Street lamp holder and manufacturing method |
| CN106839845A (en) * | 2012-01-18 | 2017-06-13 | 张跃 | Hot wing |
| CN103629961A (en) * | 2012-08-21 | 2014-03-12 | 邱维廉 | Uniform temperature plate and manufacturing method thereof |
| CN102967164A (en) * | 2012-11-26 | 2013-03-13 | 华南理工大学 | Heat tube bundle |
| CN104333324A (en) * | 2014-11-13 | 2015-02-04 | 贵州新能绿色能源有限公司 | Solar photovoltaic photo-thermal integrated energy conversion component |
| CN109066013A (en) * | 2018-08-09 | 2018-12-21 | 华霆（合肥）动力技术有限公司 | Liquid stream flat tube and battery system |
| CN109066013B (en) * | 2018-08-09 | 2023-11-28 | 华霆（合肥）动力技术有限公司 | Liquid flow flat tube and battery system |
| CN110278686A (en) * | 2019-06-03 | 2019-09-24 | Oppo广东移动通信有限公司 | Heat-dissipating pipe and preparation method thereof and electronic equipment |
| CN110278686B (en) * | 2019-06-03 | 2020-12-29 | Oppo广东移动通信有限公司 | Radiating tube, preparation method thereof and electronic equipment |
| CN113819783A (en) * | 2021-09-10 | 2021-12-21 | 联想(北京)有限公司 | Heat pipe and manufacturing method thereof |
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