CN204495143U - A kind of plate-type heat-pipe - Google Patents
A kind of plate-type heat-pipe Download PDFInfo
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- CN204495143U CN204495143U CN201520000180.3U CN201520000180U CN204495143U CN 204495143 U CN204495143 U CN 204495143U CN 201520000180 U CN201520000180 U CN 201520000180U CN 204495143 U CN204495143 U CN 204495143U
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Abstract
The utility model relates to a kind of plate-type heat-pipe, this plate-type heat-pipe is made up of one piece of panel-shaped base body, a group or more split tunnel is set in this panel-shaped base body, one group of split tunnel is made up of at least one evaporation channel and at least one condensation channel, separated by reinforcement between evaporation channel and condensation channel, reinforcement has capillary narrow slit.Be filled with the working medium of phase-change heat-exchange effect in evaporation channel and condensation channel, realize the efficient heat transfer of heat pipe.Plate-type heat-pipe described in the utility model, greatly can reduce the interface friction shearing force of vapour phase and liquid phase when heat pipe works, there is the remarkable advantages such as thermal resistance is low, exchange capability of heat is large, heat exchange efficiency is high, inclination angle scope is large, and it is lightweight, structure is simple, bearing capacity is strong, and manufacturing process is simple, is a kind of efficient, practical, with low cost new heat pipe.
Description
Technical field
The utility model relates to phase-change heat transfer and technical field of heat exchange, particularly a kind of plate-type heat-pipe.
Background technology
In recent years, plate-type heat-pipe is high due to heat exchange property, is convenient at larger area uniformly transfer heat, and be subject to people in fields such as microelectronics heat radiation, solar energy heating, recuperations of heat and pay close attention to more and more widely, research worker has carried out large quantifier elimination.Due to the reverse high-speed motion in same small passage of vehicle repair major in the plate-type heat-pipe course of work, produce very large liquid-vaqor interface frictional shearing, heat transfer resistance is increased greatly, the heat-transfer capability of restriction heat pipe.In addition, existing plate-type heat-pipe manufacturing process is comparatively complicated, and manufacturing cost is high, becomes the bottleneck that it is applied.How to adopt efficient technological method for processing to manufacture a kind of heat pipe that the liquid and vapor capacity in the heat pipe course of work can be separated, reduce or eliminate liquid-vaqor interface frictional shearing, improve heat-transfer capability, become the focus of industry research.
Utility model content
The utility model object is: the technical barriers such as, thermal resistance large for plate-type heat-pipe vapour-liquid frictional resistance is large, processed complex, a kind of plate-type heat-pipe is efficiently provided, adopt processing method with low cost, reduce the interface friction shearing force of liquid and vapor capacity in passage, thus reduce the thermal resistance of heat pipe, improve heat-transfer capability, and have lightweight, structure is simple, bearing capacity is strong, the advantage such as of many uses, easy for installation, the performance of plate-type heat-pipe is significantly improved, and considerably increases its range of application.
The technical solution of the utility model is, described plate-type heat-pipe, it is characterized in that, this plate-type heat-pipe is made up of one piece of panel-shaped base body, a group or more split tunnel is set in this panel-shaped base body, one group of split tunnel is made up of at least one evaporation channel and at least one condensation channel, is separated, reinforcement has capillary narrow slit between evaporation channel and condensation channel by reinforcement.Often organizing split tunnel can be separate, or two ends UNICOM, has been filled with the working medium of phase-change heat-exchange effect in evaporation channel and condensation channel.
Below the utility model is made and further illustrating.
Described split tunnel is arranged to a row or multi-row, and each row is one or more groups.
In described split tunnel, the shape of cross section of evaporation channel or condensation channel is circle, ellipse, triangle, square or rectangle.
The evaporation channel of described plate-type heat-pipe or condensation channel inwall are light wall or are provided with groove, and groove shape is circle, ellipse, triangle, square, rectangle, trapezoidal, swallow-tail form or Ω shape.
Described condensation channel is built-in with capillary wick, and capillary wick adopts sintering method to make.
Described condensation channel is built-in with capillary wick, and described capillary wick adopts screen net structure.
Described condensation channel is built-in with capillary wick, and capillary wick is made up of nanopowder.
When in described split tunnel, evaporation channel and condensation channel are in upper-lower position, evaporation channel upper, condensation channel under.
The processing technology feature of described plate-type heat-pipe is the method processing heat pipe matrix adopting global formation, and the method for global formation is extruding or punch forming.
Described plate-type heat-pipe carries out vacuumizing, pouring into working medium, potting end when making successively, and the mode that opposite heat tube two end sealed end carries out encapsulating is welding, glued joint, hot pressing or cold pressing.
Described panel-shaped base body material is metal or nonmetal or composite.
The outer surface of described plate-type heat-pipe is added with outer fin, to increase the capacity of heat transmission of tube surface, reduces surface resistance of heat transfer.
Described split tunnel refers to the passage of overall processing in panel-shaped base body, and its size belongs to the scope of micro heat pipe.
Described split tunnel has been filled with the working medium of phase-change heat-exchange effect after vacuumizing, and forms heat pipe, and often organize split tunnel and comprise evaporation channel and condensation channel, in general, the capillarity of condensation channel is better than evaporation channel.
Evaporation channel and the condensation channel shape of cross section of described plate-type heat-pipe split tunnel can be identical or different, and cross-sectional area can be identical or different, and passage internal channel shape and size also can be identical or different.
The plane that in described split tunnel, multichannel forms is perpendicular or parallel with the larger-size surface of plate-type heat-pipe or become arbitrary angle.
The sealing of the access port of described its inside of plate-type heat-pipe adopts welding (comprise and dissolve weldering, solid-state welding, friction stir welding, soldering), glueds joint, colds pressing, the method potting end of hot pressing.
The inclination angle scope that plate-type heat-pipe described in the utility model is placed is greater than similar heat pipe, its operation principle is: when described plate-type heat-pipe large scale plane and plane-parallel or in an acute angle with the angle of horizontal plane time, general evaporation channel is upper, condensation channel under, when evaporation ends is heated, working medium heat absorption vaporization, due to the effect of gas differential pressure, Working medium gas selects the evaporation channel from being positioned at top to transmit heat to condensation end fast, working medium is after the cooling of condensation end release heat becomes liquid, under the effect of capillary pumping forces, the condensation channel being positioned at below is seeped into by capillary narrow slit, under the capillary force of condensation channel internal channel or the effect of gravity, liquid is back to evaporation ends from condensation channel, circulation like this, direction of heat flow in plate-type heat-pipe forms a loop, substantially being separated of gas circuit and fluid path is realized, substantially reduce the frictional shearing of vapour phase and liquid interface, improve the heat-transfer capability of plate-type heat-pipe, so move in circles, define the circulation of plate-type heat-pipe flash heat transfer.
As known from the above, the utility model is a kind of plate-type heat-pipe, and its good effect has:
(1) when the major axis of the split tunnel of plate-type heat-pipe described in the utility model and plane-parallel or in an acute angle with the angle of horizontal plane time, because evaporation channel and condensation channel are separated by the reinforcement with capillary narrow slit, heat pipe can realize vapor-liquid separation substantially, the frictional shearing of vapour phase and liquid phase motion reduces greatly, and the heat-transfer capability of heat pipe is improved greatly.
(2) owing to often organizing evaporation channel in split tunnel and condensation channel relative separation during plate-type heat-pipe described in the utility model work, upwards flowed by capillary narrow slit in fire end vapour phase working medium, flowed downward by capillary narrow slit at colling end liquid working substance, hot-fluid forms circulation, make the angle of heat pipe axial direction and horizontal plane can become very little or horizontal positioned, greatly extend the range of application of plate-type heat-pipe.
(3) because the evaporation channel in plate-type heat-pipe split tunnel of the present utility model and condensation channel are interconnected by capillary narrow slit, make the hydraulic fluid of inside heat pipe at the scarce liquid compensating action of fire end formative dynamics, substantially increase the performance of heat pipe anti-dry under large heat flow density.
(4) because the evaporation channel in split tunnel in the utility model plate-type heat-pipe is communicated with by capillary narrow slit with condensation channel, compared with single independent micro heat pipe, be equivalent to add vapor chamber volume and liquid storage cylinder volume, be conducive to the heat transfer of working medium evaporation process and the backflow of liquid, make the duty of heat pipe more stable.
(5) because each group of split tunnel in plate-type heat-pipe described in the utility model is separate, if a certain group of split tunnel is impaired, other split tunnel can not be influenced, and whole heat pipe can continue to use, and further increases the reliability of plate-type heat-pipe.
(6) because the matrix of plate-type heat-pipe described in the utility model adopts the method overall processing of extruding or punching press shaping, heat pipe is processed easy, with low cost, greatly reduce the cost of heat pipe.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram (arrow is heat flow direction) of plate-type heat-pipe described in the utility model;
Fig. 2 is A-A sectional view of Fig. 1;
Fig. 3 is four kinds of embodiment schematic diagrames of plate-type heat-pipe cross section described in the utility model;
Fig. 4 is the embodiment schematic diagram in plate-type heat-pipe described in the utility model with many row's split tunnels;
Fig. 5 is B-B sectional view of Fig. 4;
Fig. 6 is other four kinds of embodiment schematic diagrames of plate-type heat-pipe cross section described in the utility model.
In the drawings:
1-evaporation channel, 2-capillary narrow slit, 3-condensation channel,
4,8-sealed end, 5-reinforcement, 6-groove,
7-matrix.
Detailed description of the invention
As depicted in figs. 1 and 2, described plate-type heat-pipe split tunnel long axis direction and plane-parallel, and evaporation channel 1 is upper, condensation channel 3 under, evaporation channel 1 and condensation channel 3 are separated by reinforcement 5, and reinforcement 5 has a capillary narrow slit 2, plate-type heat-pipe matrix 7 adopts the method for global formation to process, by vacuumizing, pouring into working medium, then sealed end 4 and 8 is sealed.Heat flow direction during described plate-type heat-pipe work as shown in Figure 1, when evaporation ends is heated, working medium heat absorption vaporization, due to the effect of gas differential pressure, Working medium gas rises to the evaporation channel 1 being positioned at top, transmit heat to condensation end to the right fast, working medium is after the cooling of condensation end release heat becomes liquid, under the effect of capillary pumping forces, the condensation channel 3 being positioned at below is seeped into by capillary narrow slit 2, under the capillary force of condensation channel 3 internal channel 6 or the effect of gravity, liquid is back to evaporation ends left from condensation channel 3, circulation like this, direction of heat flow in plate-type heat-pipe forms a loop, achieve being separated of gas circuit and fluid path, substantially reduce the frictional shearing of vapour phase and liquid interface, improve the heat-transfer capability of plate-type heat-pipe.So move in circles, define the circulation of plate-type heat-pipe flash heat transfer.
Fig. 3 is the cross sectional representation of plate-type heat-pipe described in the utility model four kinds of embodiments, several various combinations of evaporation channel 1 and condensation channel 3 when listing the large plane of plate-type heat-pipe and plane-parallel, (a) is circular evaporation channel 1 and the rectangular condensate passage 3 of with groove 6; B circular evaporation channel 1 that () is with groove 6 and the rectangular condensate passage 3 of with groove 6; C circular evaporation channel 1 that () is with groove 6 and the triangle condensation channel 3 of with groove 6; The circular condensation channel 3 of d rectangle evaporation channel that () is with groove 61 and with groove 6, different with size and whether internal channel is set according to channel cross-sectional shape, also can there is multiple combination, various combination mode can be selected as required in actual application.
Fig. 4 and Fig. 5 is the schematic diagram of another embodiment of the utility model, and compared with Fig. 1, Fig. 2, Fig. 3, its difference is that split tunnel is set to many rows, and now the heat power of heat pipe and structural strength improve a lot.The split tunnel of Fig. 4 and Fig. 5 has arranged three rows from top to bottom, has six groups of split tunnels in each row, the evaporation channel in each group split tunnel upper, condensation channel under.
Fig. 6 is the cross sectional representation of the other four kinds of embodiments of plate-type heat-pipe described in the utility model, several various combinations of evaporation channel 1 and condensation channel 3 when listing the large plane of plate-type heat-pipe and horizontal plane.
Claims (9)
1. a plate-type heat-pipe, it is characterized in that, this plate-type heat-pipe is made up of one piece of panel-shaped base body, a group or more split tunnel is set in this panel-shaped base body, one group of split tunnel is made up of at least one evaporation channel and at least one condensation channel, separated by reinforcement between evaporation channel and condensation channel, reinforcement has capillary narrow slit, in evaporation channel and condensation channel, be filled with the working medium of phase-change heat-exchange effect.
2. plate-type heat-pipe according to claim 1, it is characterized in that, in described split tunnel, the shape of cross section of evaporation channel or condensation channel is circle, ellipse, triangle, square or rectangle.
3. plate-type heat-pipe according to claim 1, it is characterized in that, the evaporation channel of described plate-type heat-pipe or condensation channel inwall are light wall or are provided with groove, and groove shape is circle, ellipse, triangle, square, rectangle, trapezoidal, swallow-tail form or Ω shape.
4. plate-type heat-pipe according to claim 1, it is characterized in that, described condensation channel is built-in with capillary wick, and capillary wick adopts sintering method to make.
5. plate-type heat-pipe according to claim 1, it is characterized in that, described condensation channel is built-in with capillary wick, and described capillary wick adopts screen net structure.
6. plate-type heat-pipe according to claim 1, it is characterized in that, described condensation channel is built-in with capillary wick, and capillary wick is made up of nanopowder.
7. plate-type heat-pipe according to claim 1, it is characterized in that, described split tunnel is arranged to a row or multi-row, and each row is one or more groups.
8. plate-type heat-pipe according to claim 1, is characterized in that, when in described split tunnel, evaporation channel and condensation channel are in upper-lower position, evaporation channel upper, condensation channel under.
9. plate-type heat-pipe according to claim 1, it is characterized in that, described panel-shaped base body material is metal or nonmetal or composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520000180.3U CN204495143U (en) | 2015-01-02 | 2015-01-02 | A kind of plate-type heat-pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520000180.3U CN204495143U (en) | 2015-01-02 | 2015-01-02 | A kind of plate-type heat-pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204495143U true CN204495143U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520000180.3U Expired - Fee Related CN204495143U (en) | 2015-01-02 | 2015-01-02 | A kind of plate-type heat-pipe |
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| CN (1) | CN204495143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457359A (en) * | 2015-01-02 | 2015-03-25 | 季弘 | Plate type heat pipe with separation channels |
-
2015
- 2015-01-02 CN CN201520000180.3U patent/CN204495143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457359A (en) * | 2015-01-02 | 2015-03-25 | 季弘 | Plate type heat pipe with separation channels |
| CN104457359B (en) * | 2015-01-02 | 2016-06-29 | 季弘 | There is the plate-type heat-pipe of split tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150722 Termination date: 20170102 |