CN203489757U - Thin type heat pipe - Google Patents
Thin type heat pipe Download PDFInfo
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- CN203489757U CN203489757U CN201320623642.8U CN201320623642U CN203489757U CN 203489757 U CN203489757 U CN 203489757U CN 201320623642 U CN201320623642 U CN 201320623642U CN 203489757 U CN203489757 U CN 203489757U
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- heat pipe
- metal powder
- sidewall
- part sidewall
- thin type
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Abstract
The utility model relates to the field of structures of heat pipes, in particular to a thin type heat pipe. The thin type heat pipe comprises a pipe body, wherein the pipe body comprises a middle lateral wall and end lateral walls connected with the middle lateral wall, a metal powder sintering portion is arranged on the inner wall of the middle lateral wall, a plurality of concave grooves are evenly distributed in the side, far away from the middle lateral wall, of the metal powder sintering portion, and a steam passage is formed among the metal powder sintering portion, the concave grooves, the middle lateral wall and the end lateral walls. The concave grooves are formed in the metal powder sintering portion, the space formed by the concave grooves and the middle lateral wall forms a groove-shaped fluid backflow passage, and the axial heat transfer capacity of the heat pipe is effectively reinforced. Besides, the arranged concave grooves increase the porosity, reduce the backflow resistance of liquid inside the heat pipe, improve the heat transfer efficiency, and reinforce the heat conductive performance of the heat pipe. Meanwhile, materials are saved, and production cost is saved.
Description
Technical field
The utility model relates to heat pipe structure field, relates in particular to a kind of thin type heat pipe.
Background technology
Along with micro computer industry (notebook computer, panel computer) product structure towards more compact and processor more towards at a high speed, high-power future development.Yet in the process constantly promoting in properties of product, the problem that its caloric value causes is day by day serious, and electronic component caloric value increases day by day, for solving foregoing problems, many passive type thermal transmission elements are suggested in succession, as: ultrathin heat pipe, loop heat pipe, flat-plate heat pipe, the equal backing of steam groove and fin etc.
Heat pipe is a kind of heat abstractor with high heat conduction, and it is comprised of shell, liquid-sucking core and end cap, at the evaporator section of heat pipe, hydraulic fluid in tube core is subject to thermal evaporation, and take away heat, and the evaporation latent heat that this heat is hydraulic fluid, steam flows to the condensation segment of heat pipe from steam channel, condense into liquid, emit latent heat, under the effect of capillary force, liquid backflow is to evaporator section simultaneously, so complete a closed circulation, thereby a large amount of heats is passed to radiating segment from bringing-up section.
Heat pipe is divided into following a few class according to the tectonic type of tube core: (1) is close to individual layer and the multilayer web-roll core class heat pipe of tube wall; (2) sintered powder tube core class heat pipe; (3) axial slot formula tube core class heat pipe; (4) combined die class heat pipe.Wherein, axial slot formula tube core class heat pipe is to open axial stria so that capillary pressure head and liquid reflux channel to be provided at inner wall of tube shell, and such heat pipe can reach higher axial heat conduction ability.Sintered powder tube core class heat pipe has higher capillary suction force, can larger improvement thermal resistance radially, therefore, sintered powder tube core class heat pipe is selected to produce on a large scale and use by a large amount of producers.
But the permeability of sintered powder tube core class heat pipe is poor, therefore axial heat conduction ability is little compared with axial slot formula tube core class heat pipe, and the powder sintered portion of existing sintered powder tube core class inside heat pipe, its smooth surface, cause porosity and heat transfer efficiency limited, can not farthest obtain higher heat conductivility.
Utility model content
The purpose of this utility model is to provide a kind of thin type heat pipe, not only can effectively strengthen the axial heat conduction ability of heat pipe, and can increase porosity, reduces the liquid backflow resistance in heat pipe, improves heat transfer efficiency, strengthens the heat conductivility of heat pipe.
For reaching this object, the utility model by the following technical solutions:
The utility model provides a kind of thin type heat pipe, comprises body, and described body comprises middle part sidewall and the end sidewalls being connected with described middle part sidewall;
The inwall of described middle part sidewall is provided with metal powder sintered portion;
Away from the side in the described metal powder sintered portion of described middle part sidewall, be provided with a plurality of equally distributed grooves;
Between described metal powder sintered portion, described groove and described middle part sidewall and described end sidewalls, form steam channel.
As preferred version of the present utility model, described groove continuously or be interrupted and arrange.
As preferred version of the present utility model, described middle part sidewall comprises the first middle part sidewall and the second middle part sidewall;
Described end sidewalls comprises first end sidewall and the second end sidewall;
The first end of described the first middle part sidewall is connected with the first end of described first end sidewall;
The second end of described the first middle part sidewall is connected with the first end of described the second end sidewall;
The first end of described the second middle part sidewall is connected with the second end of described first end sidewall;
The second end of described the second middle part sidewall is connected with the second end of described the second end sidewall.
As preferred version of the present utility model, on the inwall of described the first middle part sidewall or the inwall of described the second middle part sidewall be provided with described metal powder sintered portion.
As preferred version of the present utility model, on the inwall of described the first middle part sidewall and on the inwall of described the second middle part sidewall, be equipped with described metal powder sintered portion, described at least one, metal powder sintered portion is provided with described groove.
As preferred version of the present utility model, described middle part sidewall is flat type tube wall, and the cross section of described end sidewalls is arc.
As preferred version of the present utility model, the thickness of described metal powder sintered portion is 0.8-1.2mm.
As further preferred version of the present utility model, the thickness of described metal powder sintered portion is 0.9mm.
As preferred version of the present utility model, the mean breadth of described metal powder sintered portion is 5.0-5.5mm.
As further preferred version of the present utility model, the mean breadth of described metal powder sintered portion is 5.2mm.
The beneficial effects of the utility model are:
The inwall of the thin type heat pipe that the utility model provides is provided with metal powder sintered portion, described metal powder sintered portion is provided with a plurality of equally distributed grooves, the space that groove and middle part sidewall form has formed the fluid return flow line of groove shape, has effectively strengthened the axial heat conduction ability of heat pipe; The setting of groove has also increased porosity, has reduced the liquid backflow resistance in heat pipe, has improved heat transfer efficiency, has strengthened the heat conductivility of heat pipe, meanwhile, has also saved material, has saved production cost.
In addition, the thickness of metal powder sintered portion is 0.8-1.2mm, be preferably 0.9mm, the mean breadth of metal powder sintered portion 2 is 5.0-5.5mm, is preferably 5.2mm, has not only effectively increased the mean breadth of metal powder sintered portion, and reduced the thickness of metal powder sintered portion, increase heat-transfer surface long-pending, improved heat transfer efficiency, strengthened heat conductivility.
Accompanying drawing explanation
Fig. 1 is the structural representation before the thin type heat pipe moulding that provides of the utility model embodiment mono-;
Fig. 2 is the structural representation after the thin type heat pipe moulding that provides of the utility model embodiment mono-;
Fig. 3 is the structural representation before the thin type heat pipe moulding that provides of the utility model embodiment bis-;
Fig. 4 is the structural representation after the thin type heat pipe moulding that provides of the utility model embodiment bis-.
Wherein:
1, body; 2, metal powder sintered portion; 3, steam channel; 4, groove;
11, middle part sidewall; 12, end sidewalls;
110, the first middle part sidewall; 111, the second middle part sidewall; 120, first end sidewall; 121, the second end sidewall.
The specific embodiment
Below in conjunction with accompanying drawing and by specific embodiment, further illustrate the technical solution of the utility model.
Embodiment mono-
As depicted in figs. 1 and 2, a kind of thin type heat pipe that the present embodiment provides, comprises body 1, and body 1 comprises middle part sidewall 11 and the end sidewalls 12 being connected with middle part sidewall 11.Wherein, it is the copper pipe that 6mm or 8mm, wall thickness are 0.2mm that body 1 is selected internal diameter, also can select aluminum pipe or stainless steel tube or the titanium pipe of above-mentioned specification.Middle part sidewall 11 is flat type tube wall, and the cross section of end sidewalls 12 is arc, is preferably semicircle.
In the present embodiment, middle part sidewall 11 comprises the first middle part sidewall 110 and the second middle part sidewall 111, and end sidewalls 12 comprises first end sidewall 120 and the second end sidewall 121.The first end of the first middle part sidewall 110 is connected with the first end of first end sidewall 120, and the second end of the first middle part sidewall 110 is connected with the first end of the second end sidewall 121.The first end of the second middle part sidewall 111 is connected with the second end of first end sidewall 120, and the second end of the second middle part sidewall 111 is connected with the second end of the second end sidewall 121.
The inwall of the second middle part sidewall 111 is provided with metal powder sintered portion 2.Between metal powder sintered portion 2 and middle part sidewall 11 and end sidewalls 12, form steam channel 3.Away from the side in the metal powder sintered portion 2 of the second middle part sidewall 111, be provided with a plurality of equally distributed grooves 4, groove 4 is interrupted setting or arranges continuously, and the present embodiment is preferably to be interrupted and arranges.The space that groove 4 and middle part sidewall form has formed the fluid return flow line of groove shape, has effectively strengthened the axial heat conduction ability of heat pipe; The setting of groove 4 has also increased porosity, has reduced the liquid backflow resistance in heat pipe, has improved heat transfer efficiency, has strengthened the heat conductivility of heat pipe, meanwhile, has also saved material, has saved production cost.
In addition, the thickness of metal powder sintered portion 2 is 0.8-1.2mm, is preferably 0.9mm, and the mean breadth of metal powder sintered portion 2 is 5.0-5.5mm, is preferably 5.2mm.So, effectively increased the mean breadth of metal powder sintered portion 2, reduced the thickness of metal powder sintered portion 2, thereby it is long-pending to have increased heat-transfer surface, has further improved heat transfer efficiency, has strengthened heat conductivility.
Body 1 is to be obtained through filling metal dust, sintering and flattening the operations such as moulding by pipe.In sintering process, need to the special plug of making in advance is fixing wherein, and be filled with powder particle in metal powder sintered portion 2, for example: copper powder or aluminium powder or nickel powder.During powder particle sintering, be adhered, the engagement edge of the powder particle after sintering is more smooth, and the bond strength between powder particle increases.The set positions of exerting pressure during flattening is on middle part sidewall 11, after flattening, between metal powder sintered portion 2, groove 4 and middle part sidewall 11 and end sidewalls 12, be formed with steam channel 3, make steam effectively from steam channel 3, to flow to condensation end, then, steam is formed liquid medium at condensation segment, and liquid medium returns to hot-zone section under capillarity along capillary structure.
Embodiment bis-
As shown in Figure 3 and Figure 4, the difference of the present embodiment and embodiment mono-is: in the present embodiment, on the inwall of the first middle part sidewall 110 and on the inwall of the second middle part sidewall 111, be equipped with metal powder sintered portion 2, between two metal powder sintered portions 2 and middle part sidewall 11 and end sidewalls 12, form steam channel 3, wherein, away from a side of the metal powder sintered portion 2 of the second middle part sidewall 110 with away from a side of the metal powder sintered portion 2 of the first middle part sidewall 111, be respectively equipped with groove 4, herein, the heat-transfer effect that groove 4 produces is better.Although the space of the steam channel of the present embodiment is little compared with the space of the steam channel of embodiment mono-, further improved the flow rate of steam and the heat transfer efficiency of heat pipe, heat conductivility is good, is more suitable for the heat abstractor as micromodule equipment.
The above combination specific embodiment has been described know-why of the present utility model.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, and these modes all will fall in protection domain of the present utility model.
Claims (10)
1. a thin type heat pipe, is characterized in that,
Comprise body (1), described body (1) comprises middle part sidewall (11) and the end sidewalls (12) being connected with described middle part sidewall (11);
The inwall of described middle part sidewall (11) is provided with metal powder sintered portion (2);
Away from the side in the described metal powder sintered portion (2) of described middle part sidewall (11), be provided with a plurality of equally distributed grooves (4);
Between described metal powder sintered portion (2), described groove (4) and described middle part sidewall (11) and described end sidewalls (12), form steam channel (3).
2. a kind of thin type heat pipe according to claim 1, is characterized in that,
Described groove (4) continuously or be interrupted and arrange.
3. a kind of thin type heat pipe according to claim 1, is characterized in that,
Described middle part sidewall (11) comprises the first middle part sidewall (110) and the second middle part sidewall (111);
Described end sidewalls (12) comprises first end sidewall (120) and the second end sidewall (121);
The first end of described the first middle part sidewall (110) is connected with the first end of described first end sidewall (120);
The second end of described the first middle part sidewall (110) is connected with the first end of described the second end sidewall (121);
The first end of described the second middle part sidewall (111) is connected with the second end of described first end sidewall (120);
The second end of described the second middle part sidewall (111) is connected with the second end of described the second end sidewall (121).
4. a kind of thin type heat pipe according to claim 3, is characterized in that,
On the inwall of described the first middle part sidewall (110) or the inwall of described the second middle part sidewall (111) be provided with described metal powder sintered portion (2).
5. a kind of thin type heat pipe according to claim 3, is characterized in that,
On the inwall of described the first middle part sidewall (110) and on the inwall of described the second middle part sidewall (111), be equipped with described metal powder sintered portion (2), described at least one, metal powder sintered portion (2) is provided with described groove (4).
6. a kind of thin type heat pipe according to claim 1, is characterized in that,
Described middle part sidewall (11) is flat type tube wall, and the cross section of described end sidewalls (12) is arc.
7. a kind of thin type heat pipe according to claim 1, is characterized in that,
The thickness of described metal powder sintered portion (2) is 0.8-1.2mm.
8. a kind of thin type heat pipe according to claim 1, is characterized in that,
The thickness of described metal powder sintered portion (2) is 0.9mm.
9. a kind of thin type heat pipe according to claim 1, is characterized in that,
The mean breadth of described metal powder sintered portion (2) is 5.0-5.5mm.
10. a kind of thin type heat pipe according to claim 1, is characterized in that,
The mean breadth of described metal powder sintered portion (2) is 5.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623642.8U CN203489757U (en) | 2013-10-10 | 2013-10-10 | Thin type heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623642.8U CN203489757U (en) | 2013-10-10 | 2013-10-10 | Thin type heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489757U true CN203489757U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320623642.8U Expired - Fee Related CN203489757U (en) | 2013-10-10 | 2013-10-10 | Thin type heat pipe |
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| CN (1) | CN203489757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499229A (en) * | 2013-10-10 | 2014-01-08 | 昆山德泰新材料科技有限公司 | Thin type heat pipe |
-
2013
- 2013-10-10 CN CN201320623642.8U patent/CN203489757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499229A (en) * | 2013-10-10 | 2014-01-08 | 昆山德泰新材料科技有限公司 | Thin type heat pipe |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20181010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |