CN103575144A - Array type micro channel flat plate type heat pipe - Google Patents
Array type micro channel flat plate type heat pipe Download PDFInfo
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- CN103575144A CN103575144A CN201310566644.2A CN201310566644A CN103575144A CN 103575144 A CN103575144 A CN 103575144A CN 201310566644 A CN201310566644 A CN 201310566644A CN 103575144 A CN103575144 A CN 103575144A
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Abstract
The invention provides an array type micro channel flat plate type heat pipe which comprises a heat conducting micro channel flat plate heat pipe and an even-heat micro channel flat plate heat pipe. The even-heat micro channel flat plate heat pipe is placed on the surface of one end of the heat conducting micro channel flat plate heat pipe. The pipeline axis of the heat conducting micro channel flat plate heat pipe is perpendicular to the pipeline axis of the even-heat micro channel flat plate heat pipe. According to the even-heat micro channel flat plate heat pipe, a heat pipe with an even-heat function is designed, the heat pipe can be used in the situation of higher heat flow density, heat exchanging area is increased, and efficiency is improved.
Description
Technical field
The present invention relates to phase-change heat transfer and heat transfer technology, particularly the flat plate heat tube of a kind of array microchannel.
Background technology
Separate sealing between every microchannel of flat-plate heat pipe, common microchannel, vapour-liquid two-phase is reverse high-speed motion in same small passage, produces very large interface friction shearing force, has hindered the backflow of condensation end liquid, the heat transfer resistance of heat pipe is increased, reduction of heat exchange efficiency.And the microchannel flat-plate heat pipe of research is all along being axially to offer microchannel conventionally, heat pipe axially has very high heat transfer efficiency.When microchannel flat-plate heat pipe is for heat flow density relatively very high lower time of situation, too high amount of localized heat lateral dispersion transmission efficiency is very low, makes heat pipe local temperature very high, and the working media of inner correspondence position is easy to dry up, and even can burn out heat pipe.
Summary of the invention
For addressing the above problem, the present invention proposes the flat plate heat tube of a kind of array microchannel, comprise heat conduction microchannel flat-plate heat pipe and soaking microchannel flat-plate heat pipe, described soaking microchannel flat-plate heat pipe is positioned at heat conduction microchannel flat-plate heat pipe one end surfaces, and the pipeline axial of the pipeline axial of heat conduction microchannel flat-plate heat pipe and soaking microchannel flat-plate heat pipe is orthogonal.
Further, heat conduction microchannel flat-plate heat pipe pipeline axial is that longitudinally soaking microchannel flat-plate heat pipe pipeline axial is horizontal.
Further, described heat conduction microchannel flat-plate heat pipe comprises upper microchannel plate and the lower microchannel plate of mutual laminating, the binding face relative position of described upper microchannel plate and lower microchannel plate is provided with vapor chamber, and the upper and lower relative position of described vapor chamber place offers groove and forms some microchannels.
Further, the upper microchannel plate of described heat conduction microchannel flat-plate heat pipe and the groove cross section of lower microchannel plate are triangle or rectangle or trapezoidal.
Further, the upper microchannel plate that described soaking microchannel flat-plate heat pipe comprises mutual laminating and lower microchannel plate, the binding face relative position of described upper microchannel plate and lower microchannel plate is provided with vapor chamber, and the upper and lower relative position of described vapor chamber place offers groove and forms some microchannels.
Further, the upper microchannel plate of soaking microchannel flat-plate heat pipe and the groove cross section of lower microchannel plate are triangle or rectangle or trapezoidal.
Further, heat conduction microchannel flat-plate heat pipe is welded on the upper microchannel plate of soaking microchannel flat-plate heat pipe.
Further, described heat conduction microchannel flat-plate heat pipe does not contact one end bending with soaking microchannel flat-plate heat pipe.
Further, the bending angle of described heat conduction microchannel flat-plate heat pipe is-90 °～90 °.
Beneficial effect of the present invention is:
1. soaking of the present invention microchannel flat-plate heat pipe is designed with a heat pipe with soakage function, can make this heat pipe use under the situation of high heat flux more, and heat exchange area increases, and efficiency improves.
2. heat pipe of the present invention is to adopt on flat board, to process MCA, and the rib between passage has played the effect of enhanced heat exchange, makes the heat exchange efficiency of heat pipe higher.
3. the present invention is provided with the vapor chamber that is communicated with all microchannels, the flow resistance that has reduced steam and condensate liquid effectively, and microchannel itself is equivalent to rib structure, strengthened radial thermal conductivity between heat pipe and thermal source and the phase-change heat transfer coefficient of internal working medium, can be so that microchannel flat-plate heat pipe has larger heat-transfer capability.
4. adopt flat structure, convenient and thermal source laminating, reduces thermal resistance, improves heat exchange efficiency, and can on flat board, design easily mechanical mounting interface, convenient use.
Accompanying drawing explanation
Fig. 1 is front schematic view of the present invention.
Fig. 2 is A-A face cutaway view of the present invention.
Fig. 3 is B-B face cutaway view of the present invention.
Fig. 4 is the microchannel partial enlarged drawing of Fig. 2 and Fig. 3.
Fig. 5,6,7 is microchannel shape of cross section combination examples schematic diagram.
Fig. 8 is that two independent microchannel flat-plate heat pipes compositions have soakage function microchannel flat-plate heat pipe enforcement schematic diagram.
Fig. 9 is that the present invention is made into bending-type soakage function microchannel flat-plate heat pipe structural representation.
1. heat conduction microchannel flat-plate heat pipes in figure, 2. soaking microchannel flat-plate heat pipe, 3. high heat flux thermal source, 4. microchannel plate under mounting interface .5. heat-conductive thermo tube, 6. microchannel plate on heat-conductive thermo tube, 7. microchannel plate on soaking heat pipe, 8. microchannel plate under soaking heat pipe, 9. goes up microchannel, 10. descend microchannel, 11. ribs, 12, vapor chamber.
The specific embodiment
The present invention is formed by stacking by two flat-plate heat pipes, and each arranges vertical and horizontal.Microchannel flat-plate heat pipe is used apart from heat conduction as long longitudinally, and heat is caused to condensation end from evaporation ends transmission; At microchannel flat-plate heat pipe of back side lateral arrangement of heat conduction microchannel flat-plate heat pipe, the heat conduction direction of this heat pipe is lateral transport, and high heat flux thermal source is affixed on to this heat pipe center, can make heat along laterally transmitting fast, plays the function of horizontal soaking.By the microchannel flat-plate heat pipe of soakage function, heat pipe can be applied to the situation that heat flow density is higher.
Above-mentioned two kinds of microchannel flat-plate heat pipes are all comprised of upper and lower two flat boards with microchannel.On upper and lower two flat boards, all outputed the micro channel array with certain geometry, centre is provided with the cavity of certain altitude, is communicated with, as the operation passage of steam with each microchannel on upper and lower flat board.The steam channel being communicated with has strengthened the volume that exists of the interior steam of heat pipe, reduces steam pressure and the movement velocity of flat-plate heat pipe, and the frictional resistance between vapour-liquid is reduced.Can on the flat-plate heat pipe of microchannel, design various forms of mechanical mounting interfaces as required.
Described longitudinal heat conduction microchannel flat-plate heat pipe can be the straight plate of rule on surface structure, also can be to there is arbitrarily angled bending, and can single or the plate of bending repeatedly, the profile after flattening can be the shapes such as cuboid, square, circle, polyhedron.
Described horizontal soaking microchannel flat-plate heat pipe is straight-plate-type structure, and the microchannel in heat pipe is lateral arrangement.This microchannel flat-plate heat pipe lateral stacking is at longitudinal heat conduction microchannel flat-plate heat pipe evaporation ends.
Described horizontal soaking microchannel flat-plate heat pipe can be made into one with longitudinal heat conduction microchannel flat-plate heat pipe, also can be made into an independent straight-plate-type heat pipe, then by the modes such as various welding, splicing and mechanical connection and dull and stereotyped thermally coupled being integral in longitudinal heat conduction microchannel.
Described microchannel can be the rectangle processed in dull and stereotyped, triangle, the geometry conduit with certain corner structure such as trapezoidal, and the backflow that corner is working media provides capillary force.The channel structure of same geometry can be adopted in the microchannel of upper and lower microchannel plate face, can be also the combination of any two kinds of geometry microchannels.
Described vertical and horizontal microchannel flat-plate heat pipe adopts the shapings such as metal or nonmetal or composite cutting, extruding or punching press.
The sealing of described microchannel flat-plate heat pipe can be to adopt the welding formings such as molten solder, solid State Welding, friction stir welding, soldering, cold welding, thermocompression bonding, can be also directly to glued joint and be shaped, to guarantee that flat-plate heat pipe has sealing.
Now be described with reference to the accompanying drawings as follows.
Fig. 1 is front schematic view of the present invention.Heat conduction microchannel flat-plate heat pipe 1 and soaking microchannel flat-plate heat pipe 2 stack combinations.Wherein, heat conduction microchannel flat-plate heat pipe 1 be axially longitudinally to arrange, as long, apart from heat conduction use, heat is caused to condensation end from evaporation ends transmission.Soaking microchannel flat-plate heat pipe 2 is axially laterally, is arranged in the evaporation ends of heat conduction microchannel flat-plate heat pipe, and the heat conduction direction of this heat pipe is lateral transport.The high heat flux thermal source 3 that needs heat conduction is affixed on to the center of soaking microchannel flat-plate heat pipe 2, can makes heat along laterally transmitting fast, play the function (as the direction of arrow of Fig. 1 middle-high density thermal source 3 both sides) of horizontal soaking.Can also design class be similar to the frame for movement of mounting interface 4, for of the present invention, install and use.
Fig. 2,3 is respectively as A-A of the present invention, B-B face schematic diagram.Under heat-conductive thermo tube on microchannel plate 5, heat-conductive thermo tube on microchannel plate 6, soaking heat pipe under microchannel plate 7, soaking heat pipe microchannel plate 8 be all to adopt or milling, or extruding, or punching press, or the microchannel that is shaped of the mode such as casting.Between upper and lower microchannel, be reserved with vapor chamber 12, be communicated with all microchannels.
Can find out, under the soaking heat pipe of soaking microchannel flat-plate heat pipe 1 microchannel plate 8 be with heat-conductive thermo tube on microchannel plate 6 is integrated is produced on one flat plate, and lay respectively at positive and negative.
By 6 alignment of microchannel plate on microchannel plate under heat-conductive thermo tube 5 and heat-conductive thermo tube, after under soaking heat pipe, under microchannel plate 7 and soaking heat pipe, microchannel plate 8 aligns, can adopt the welded seals such as molten solder, solid State Welding, friction stir welding, soldering, cold welding, thermocompression bonding, can be also directly to glued joint sealing.By vacuum encapsulation, enter a certain amount of working media again, just formed microchannel of the present invention flat-plate heat pipe.Mounting interface shown in Fig. 14 can be designed to various forms of mechanical mounting interfaces as required.
Fig. 4 is the microchannel partial enlarged drawing of Fig. 2 and Fig. 3.
In Fig. 1, rectangle, triangle, a kind of in trapezoidal can be used in microchannel 9 and micro-logical 10, can be also the wherein combinations of two kinds, as shown in Fig. 5,6,7.Fig. 5 is triangle microchannel and Rectangular Microchannel combination signal, and Fig. 6 is triangle and trapezoidal combination signal, and Fig. 7 is that rectangle and trapezoidal combination are illustrated.
Fig. 8 be the present invention adopt two independently microchannel flat-plate heat pipe be combined into the signal of a soaking microchannel flat-plate heat pipe.Heat conduction microchannel flat-plate heat pipe longitudinally arranges that soaking microchannel flat-plate heat pipe lateral arrangement can be assembled into together by modes such as welding, splicing, mechanical connections.
Figure 9 shows that the present invention is made into the bending-type soaking microchannel flat-plate heat pipe structural representation with certain angle θ.Angle of bend θ can be-90 °～90 °, can carry out single or multiple bending.
Operation principle of the present invention is:
The center of high density thermal source being close to soaking microchannel flat-plate heat pipe 2, horizontal conductive force due to soaking heat pipe, the heat of center can be transmitted to two ends, thermal source is dispersed at the evaporation ends of heat conduction microchannel flat-plate heat pipe, higher with the heat exchanger effectiveness of heat-conductive thermo tube evaporation ends.For heat conduction microchannel flat-plate heat pipe, the gas that evaporation ends forms, is filled with in vapor chamber 12, under the effect of pressure reduction, from evaporation ends, run to condensation end, produce condensation, condensate liquid is back to evaporator section by the capillary force effect of the corner generation of microchannel 9,10, and so forth.Because vapor chamber 12 has been communicated with all microchannels in heat pipe, what make inside heat pipe fullly closes steam pressure and vapor (steam) velocity reduces, and the shearing force between steam and withdrawing fluid reduces, and makes the backflow resistance of condensed fluid less.For soaking microchannel flat-plate heat pipe 2, in its evaporation ends, be positioned at the center that thermal source is installed, condensation end is positioned at heat pipe two ends.Rib 11 between each microchannel can be strengthened the efficiency of evaporation ends and condensation end heat conduction.
Beneficial effect of the present invention is:
Soaking of the present invention microchannel flat-plate heat pipe is designed with a heat pipe with soakage function, can make this heat pipe use under the situation of high heat flux more, and heat exchange area increases, and efficiency improves.
Because heat pipe of the present invention is to adopt to process MCA on flat board, the rib between passage has played the effect of enhanced heat exchange, makes the heat exchange efficiency of heat pipe higher.
In this microchannel flat-plate heat pipe, be provided with the vapor chamber that is communicated with all microchannels, the flow resistance that has reduced steam and condensate liquid effectively, and microchannel itself is equivalent to rib structure, strengthened radial thermal conductivity between heat pipe and thermal source and the phase-change heat transfer coefficient of internal working medium, can be so that microchannel flat-plate heat pipe has larger heat-transfer capability.
Adopt flat structure, convenient and thermal source laminating, reduces thermal resistance, improves heat exchange efficiency, and can on flat board, design easily mechanical mounting interface, convenient use.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. the flat plate heat tube of an array microchannel, it is characterized in that, comprise heat conduction microchannel flat-plate heat pipe and soaking microchannel flat-plate heat pipe, described soaking microchannel flat-plate heat pipe is positioned at heat conduction microchannel flat-plate heat pipe one end surfaces, and the pipeline axial of the pipeline axial of heat conduction microchannel flat-plate heat pipe and soaking microchannel flat-plate heat pipe is orthogonal.
2. the flat plate heat tube of a kind of array as claimed in claim 1 microchannel, is characterized in that, heat conduction microchannel flat-plate heat pipe pipeline axial is that longitudinally soaking microchannel flat-plate heat pipe pipeline axial is horizontal.
3. the flat plate heat tube of a kind of array as claimed in claim 1 microchannel, it is characterized in that, described heat conduction microchannel flat-plate heat pipe comprises upper microchannel plate and the lower microchannel plate of mutual laminating, the binding face relative position of described upper microchannel plate and lower microchannel plate is provided with vapor chamber, and the upper and lower relative position of described vapor chamber place offers groove and forms some microchannels.
4. the flat plate heat tube of a kind of array as claimed in claim 3 microchannel, is characterized in that, the upper microchannel plate of described heat conduction microchannel flat-plate heat pipe and the groove cross section of lower microchannel plate are triangle or rectangle or trapezoidal.
5. profit requires the flat plate heat tube of a kind of array microchannel described in 1, it is characterized in that, the upper microchannel plate that described soaking microchannel flat-plate heat pipe comprises mutual laminating and lower microchannel plate, the binding face relative position of described upper microchannel plate and lower microchannel plate is provided with vapor chamber, and the upper and lower relative position of described vapor chamber place offers groove and forms some microchannels.
6. the flat plate heat tube of a kind of array of base claimed in claim 5 microchannel, is characterized in that, the upper microchannel plate of soaking microchannel flat-plate heat pipe and the groove cross section of lower microchannel plate are triangle or rectangle or trapezoidal.
7. the flat plate heat tube of a kind of array claimed in claim 1 microchannel, is characterized in that, heat conduction microchannel flat-plate heat pipe is welded on the upper microchannel plate of soaking microchannel flat-plate heat pipe.
8. the flat plate heat tube of a kind of array claimed in claim 1 microchannel, is characterized in that, described heat conduction microchannel flat-plate heat pipe does not contact one end bending with soaking microchannel flat-plate heat pipe.
9. the flat plate heat tube of a kind of array claimed in claim 8 microchannel, is characterized in that, the bending angle of described heat conduction microchannel flat-plate heat pipe is-90 °～90 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310566644.2A CN103575144B (en) | 2013-11-13 | 2013-11-13 | A kind of flat plate heat tube of array microchannel |
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| CN201310566644.2A CN103575144B (en) | 2013-11-13 | 2013-11-13 | A kind of flat plate heat tube of array microchannel |
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| CN103575144A true CN103575144A (en) | 2014-02-12 |
| CN103575144B CN103575144B (en) | 2017-06-16 |
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Cited By (6)
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| CN104654700A (en) * | 2015-02-10 | 2015-05-27 | 季弘 | Multi-functional refrigerated container and refrigeration/thawing/thermal insulation method |
| CN105865244A (en) * | 2016-05-25 | 2016-08-17 | 江苏亨通光导新材料有限公司 | Liquid gasification device and gasification method thereof |
| CN109618532A (en) * | 2018-12-18 | 2019-04-12 | 山东超越数控电子股份有限公司 | A kind of multi-channel cooling temperature equalization system |
| CN109990419A (en) * | 2019-05-08 | 2019-07-09 | 清华大学 | Convection current radiation air-conditioner end and air-conditioning system |
| CN110220236A (en) * | 2019-07-03 | 2019-09-10 | 姜瑞彪 | Heating module and heating system |
| CN114197249A (en) * | 2021-11-26 | 2022-03-18 | 华南理工大学 | A hot pressing design hot plate for paper pulp molding production |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104654700A (en) * | 2015-02-10 | 2015-05-27 | 季弘 | Multi-functional refrigerated container and refrigeration/thawing/thermal insulation method |
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| CN109990419A (en) * | 2019-05-08 | 2019-07-09 | 清华大学 | Convection current radiation air-conditioner end and air-conditioning system |
| CN110220236A (en) * | 2019-07-03 | 2019-09-10 | 姜瑞彪 | Heating module and heating system |
| CN114197249A (en) * | 2021-11-26 | 2022-03-18 | 华南理工大学 | A hot pressing design hot plate for paper pulp molding production |
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| CN103575144B (en) | 2017-06-16 |
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