CN202393275U - Ultra-thin-type heat conducting pipe with composite structure - Google Patents
Ultra-thin-type heat conducting pipe with composite structure Download PDFInfo
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- CN202393275U CN202393275U CN2011204588762U CN201120458876U CN202393275U CN 202393275 U CN202393275 U CN 202393275U CN 2011204588762 U CN2011204588762 U CN 2011204588762U CN 201120458876 U CN201120458876 U CN 201120458876U CN 202393275 U CN202393275 U CN 202393275U
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- capillary structure
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- heat pipe
- conducting pipe
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Abstract
The utility model discloses an ultra-thin-type heat conducting pipe with a composite structure, which has a good heat conducting performance. The ultra-thin-type heat conducting pipe with the composite structure comprises a heat conducting pipe body with two sealed ends, wherein one end of the heat conducting pipe body is an evaporation part, the other end of the heat conducting pipe body is a condensation part, and the middle section of the heat conducting pipe body is a heat insulation part; the radial cross section of the heat conducting pipe body is elliptic; the inner wall of the heat conducting pipe body is provided with an auxiliary capillary structure; the radial cross section of the auxiliary capillary structure is of a 'C' shape; the heat conducting pipe body is also internally provided with a main capillary structure; the radial cross section of the main capillary structure is rectangular; the main capillary structure separates the inner cavity of the heat conducting pipe body into two air stream channels which are not identical mutually; also one side of the main capillary structure is arranged in an opening of the auxiliary capillary structure and clung to two side edges of the opening, and is clung to the wall of the heat conducting pipe body, and the other side of the main capillary structure is clung to the auxiliary capillary structure; and the two air stream channels are internally filled with working media respectively.
Description
Technical field
The utility model belongs to the heat pipe field, concrete relates to a kind of ultrathin heat pipe with composite construction.
Background technology
Present stage, heat pipe has the advantage of higher heat output because of it, has been widely used in the electronic component of the big caloric value of tool.
During heat pipe work; Utilize under the body inner near likelihood dummy status; That fills makes the lower characteristic of hydrodynamic boiling point, makes its working media carburation by evaporation after its evaporation part absorbs the heat that heat-generating electronic elements produces, and is being with heat to move to the condensation part; And condense in condensation part liquefaction heat is discharged, thereby realize electronic component is dispelled the heat.Working media after this vaporization to the evaporation part, continues to be evaporated vaporization and liquefaction is condensed in the effect refluxed of heat pipe capillary structure, makes working media in the motion of heat pipe inner loop, and the heat that electronic component is produced conducts endlessly.
Current electronic product constantly tends to compact direction to be developed; And the heating power of its internal electronic element is increasingly high; That heat dissipation problem becomes all the more electronic product in the space that constantly dwindles is important; This just need the heat radiation product move towards compact in, more need higher heat transfer, heat dispersion.
The single capillary structure of the general employing of ultra-thin heat pipe of the prior art; That capillary structure generally can be divided into is groove-shaped, intermediate sintering powder column type, and copper mesh type etc.; Said capillary structure is opened on the tube wall of heat pipe or with tube wall and fits tightly, and in the circular heat conduit, can make the working media of condensation part in time be back to the evaporation part of heat pipe.But; Groove-shaped heat pipe is because of the restriction of its structure, when the antigravity effect test, obviously is inferior to sintered powder column type and copper mesh Xing ﹔ and intermediate sintering powder pillar heat pipe removes and the powder contact position because of its inside pipe wall, and all the other are light pipe; Working media can't effectively be back in the powder pillar after making condensation; Thereby its liquid conveying capacity Da width of cloth Xia Jiang ﹔ and simple copper mesh pipe, after flattening, when especially flattening to very thin thickness; Situations such as distortion, disintegration appear in said capillary structure easily; Its liquid conveying capacity is declined to a great extent, and the liquid conveying capacity of whole heat pipe can not obtain other modes and replenish, thereby cause declining to a great extent and the increase of thermal resistance of heat pipe maximal heat transfer amount.
The utility model content
For overcoming the problems of the prior art, the purpose of the utility model is to provide a kind of ultrathin heat pipe of composite construction.
Another purpose of the utility model is to provide a kind of preparation method of ultrathin heat pipe of composite construction.
In order to solve the problems of the technologies described above, realize above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of ultrathin heat pipe of composite construction comprises the heat conduction body that two ends are sealed, and an end of said heat conduction body is the evaporation part; The other end is a section insulation in the middle of the condensation part; The radial cross-section ovalisation of said heat conduction body, said heat conduction inboard wall of tube body are provided with the auxilliary capillary structure of one deck, and the radial cross-section of said auxilliary capillary structure becomes " C " shape; Also be provided with a master capillary structure in the said heat conduction body body; The radial cross-section of said master capillary structure becomes rectangle, and said master capillary structure is divided into mutually different two gas channels with the tube cavity of said heat conduction body, and a side of said master capillary structure is gone in the gap of said auxilliary capillary structure and is close to the dual-side of gap; And be close to the tube wall of said heat conduction body, opposite side is close to said auxilliary capillary structure; Be filled with working media respectively in described two gas channels.
The ultrathin heat pipe working media of the composite construction of the utility model is evenly distributed in the middle of the master capillary structure and auxiliary capillary structure of body one side; During heat pipe work; Being distributed in working media in the middle of master capillary structure and the auxiliary capillary structure is heated at evaporator section and converts steam into and move to condensation segment via gas channel; Through after the condensation; Working media is distributed in the middle of the master capillary structure and auxiliary capillary structure of condensation segment, and the working media part in this moment auxiliary capillary structure directly is passed to bringing-up section via the auxiliary capillary structure, the part working media that can't in time be back to evaporator section master capillary structure than strong wool under the thin power effect; Via the contact both sides of auxiliary capillary structure and master capillary structure part from the auxiliary capillary structural flow to master capillary structure, finally be back to evaporator section by master capillary structure.
Compared with prior art the utlity model has following advantage:
This capillary structure of the utility model is formed by two kinds, is affixed on the powder sintered post of inside pipe wall one side, and the copper mesh structure that is affixed on the inside pipe wall opposite side.These two kinds of capillary structures extend between the evaporation part and condensation part of heat pipe in the axial direction, its inner gas channel that forms.When heat pipe was flattened, powder sintered post was positioned at the central authorities that flatten the back heat pipe, plays surface-supported effect; Avoid heat pipe flattening the depression that thickness produces when too thin; Effectively guaranteed the gas channel of ultrathin heat pipe, simultaneously stronger because of its capillary force, the simple relatively copper mesh pipe of powder sintered structure; Can more effectively improve hydraulic fluid and be back to the efficient of evaporator section, promote properties of hot pipe from heat pipe condenser section.And place inside pipe wall in addition the copper mesh of side can improve the disengagement area of evaporator section hydraulic fluid; Reduced evaporation thermal resistance ; be evenly distributed on simultaneously inside pipe wall in addition the copper mesh of side the hydraulic fluid that is attached to inside pipe wall after the condensation progressively is back in the powder sintered post through the capillary force of copper mesh order; Improve the hydraulic fluid backflow efficient of powder sintered post, improved heat conducting pipe performance.
Above-mentioned explanation only is the general introduction of the utility model technical scheme, in order more to know the technological means of understanding the utility model, and can implement according to the content of specification, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.The specific embodiment of the utility model is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
The radial cross-section structural representation of the ultrathin heat pipe of the composite construction of Fig. 1 the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the technical scheme of the utility model is further explained.
Referring to shown in Figure 1, a kind of ultrathin heat pipe of composite construction comprises the heat conduction body 12 that two ends are sealed; One end of said heat conduction body 12 is the evaporation part; The other end is the condensation part, middle section insulation, the radial cross-section ovalisation of said heat conduction body 12; Said heat conduction body 12 inwalls are provided with the auxilliary capillary structure 14 of one deck; The radial cross-section of said auxilliary capillary structure 14 becomes " C " shape, also is provided with a master capillary structure 15 in said heat conduction body 12 bodys, and the radial cross-section of said master capillary structure 15 becomes rectangle; Said master capillary structure 15 is divided into mutually different two gas channels 16 with the tube cavity of said heat conduction body 12; And a side of said master capillary structure 15 goes in the gap of said auxilliary capillary structure 14 and is close to the dual-side of gap, and is close to the tube wall of said heat conduction body 12, and opposite side is close to said auxilliary capillary structure 14; Be filled with working media respectively in described two gas channels 16.
Further, said master capillary structure 15 is powder sintered structure, and preferred, said master capillary structure 15 is the copper powders may sintering structure.
Preferably, said master capillary structure 15 is less than
girth of heat conduction body 12 inwalls.
Preferably, the thickness w scope of said master capillary structure 15 is between 0.3mm to 2.0mm.
Further, said auxilliary capillary structure 14 is the copper mesh structure of individual layer or the copper mesh structure of multilayer, and the thickness of said auxilliary capillary structure 14 is less than the thickness of said master capillary structure 15.
Preferably, the copper mesh order scope of counting of the copper mesh structure in the said auxilliary capillary structure 14 is 60 order to 150 orders.
The ultrathin heat pipe of the composite construction of the utility model is made through following method and got: it may further comprise the steps:
Step 1) is got a cylindrical stainless steel bar, and a fan-shaped powder groove of filling out is left on its surface;
Step 2) use copper fine rule braiding copper mesh, and radially girth cutting copper mesh is wide according to cylindrical corrosion resistant plate unslotted part, and the copper mesh of cutting is cut into little mesh bar according to the effective length of required heat pipe;
Step 3) is wrapped in cylindrical corrosion resistant plate rod outside with little mesh bar, and the fan-shaped powder groove of filling out is vacated;
Step 4) has been got the copper pipe body, and the cylindrical stainless steel bar that is enclosed with little mesh bar is placed in the copper pipe, in empty copper pipe body, fills copper powders may along the fan-shaped powder groove of filling out then, places sintering in the high temperature furnace at last;
Step 5) is extracted cylindrical stainless steel bar, with the sealing of body one end, in the copper pipe body, fills working media then, then vacuumizes, and the last closed tube other end obtains the conglobate heat pipe of a radial cross-section;
Step 6) is flattened the heat pipe that obtains in the step 5, with the ultrathin heat pipe of the composite construction of processing the radial cross-section ovalisation.
Further, said copper wire is between 0.05mm to 0.2mm.
Further, the temperature in the said high temperature furnace is 980 ℃.
Ultrathin heat pipe with the composite construction of the preferred embodiments of concrete experimental data explanation the utility model is stronger than the heat transfer property of the heat pipe with traditional capillary structure below, and thermal resistance is lower.
Table 1 specification is the performance comparison of heat pipe of preferred embodiments of the utility model of conventional powder sintering post heat pipe and the same size of Φ 6 * 200mm
As shown in table 1, it is about 25% that the average more traditional sintering heat pipe of the maximal heat transfer amount of the heat pipe of the utility model one preferred embodiments exceeds, and its heat transfer property promotes significantly.
The pipe of the above-mentioned specification of table 2 flattens to the performance comparison of the heat pipe of the preferred embodiments of 1.5mm thick back traditional hot conduit and the utility model
As shown in table 2, the available maximal heat transfer amount of the heat pipe (Q of the utility model one preferred embodiment
Max) more traditional sintering heat pipe exceeds approximately 140%, the evenly heat resistance is far below the traditional hot conduit, and its heat transfer property significantly promotes.
The foregoing description is technical conceive and the characteristics for the utility model is described just, its objective is to be the content that lets the one of ordinary skilled in the art can understand the utility model and to implement according to this, can not limit the protection domain of the utility model with this.The variation or the modification of every equivalence of having done according to the essence of the utility model content all should be encompassed in the protection domain of the utility model.
Claims (7)
1. the ultrathin heat pipe of a composite construction; The heat conduction body (12) that comprises two ends sealing; One end of said heat conduction body (12) is the evaporation part, and the other end is a section insulation in the middle of the condensation part, it is characterized in that: the radial cross-section ovalisation of said heat conduction body (12); Said heat conduction body (12) inwall is provided with the auxilliary capillary structure (14) of one deck; The radial cross-section of said auxilliary capillary structure (14) becomes " C " shape, also is provided with a master capillary structure (15) in said heat conduction body (12) body, and the radial cross-section of said master capillary structure (15) becomes rectangle; Said master capillary structure (15) is divided into mutually different two gas channels (16) with the tube cavity of said heat conduction body (12); And a side of said master capillary structure (15) goes in the gap of said auxilliary capillary structure (14) and is close to the dual-side of gap, and is close to the tube wall of said heat conduction body (12), and opposite side is close to said auxilliary capillary structure (14); Be filled with working media respectively in described two gas channels (16).
2. the ultrathin heat pipe of composite construction according to claim 1 is characterized in that: said master capillary structure (15) is powder sintered structure.
3. the ultrathin heat pipe of composite construction according to claim 2, it is characterized in that: said master capillary structure (15) is the copper powders may sintering structure.
4. according to the ultrathin heat pipe of claim 1 or 2 or 3 described composite constructions, it is characterized in that: said master capillary structure (15) is less than
girth of heat conduction body (12) inwall.
5. the ultrathin heat pipe of composite construction according to claim 4, it is characterized in that: thickness (w) scope of said master capillary structure (15) is between 0.3mm to 2.0mm.
6. the ultrathin heat pipe of composite construction according to claim 5; It is characterized in that: said auxilliary capillary structure (14) is the copper mesh structure of the copper mesh structure of individual layer or multilayer, and the thickness of said auxilliary capillary structure (14) is less than the thickness of said master capillary structure (15).
7. the ultrathin heat pipe of composite construction according to claim 6, it is characterized in that: the copper mesh order scope of counting of the copper mesh structure in the said auxilliary capillary structure (14) is 60 order to 150 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204588762U CN202393275U (en) | 2011-11-18 | 2011-11-18 | Ultra-thin-type heat conducting pipe with composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204588762U CN202393275U (en) | 2011-11-18 | 2011-11-18 | Ultra-thin-type heat conducting pipe with composite structure |
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| Publication Number | Publication Date |
|---|---|
| CN202393275U true CN202393275U (en) | 2012-08-22 |
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| CN2011204588762U Expired - Fee Related CN202393275U (en) | 2011-11-18 | 2011-11-18 | Ultra-thin-type heat conducting pipe with composite structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264177A (en) * | 2021-09-17 | 2022-04-01 | 锘威科技(深圳)有限公司 | Novel VC composite pipe and preparation method thereof |
-
2011
- 2011-11-18 CN CN2011204588762U patent/CN202393275U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264177A (en) * | 2021-09-17 | 2022-04-01 | 锘威科技(深圳)有限公司 | Novel VC composite pipe and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Shengli Inventor before: Zhou Shengguo |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHOU SHENGGUO TO: ZHU SHENGLI |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20121118 |