CN103776289A - Thin type heat tube structure and processing and manufacturing method thereof - Google Patents
Thin type heat tube structure and processing and manufacturing method thereof Download PDFInfo
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- CN103776289A CN103776289A CN201310756391.5A CN201310756391A CN103776289A CN 103776289 A CN103776289 A CN 103776289A CN 201310756391 A CN201310756391 A CN 201310756391A CN 103776289 A CN103776289 A CN 103776289A
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Abstract
The invention provides a thin type heat tube structure and a processing and manufacturing method thereof. A thin type heat tube comprises a metal shell, metal thin sheets and through grooves. The inner portion of the metal shell is a hollow chamber, at least one metal thin sheet is arranged in the chamber inside the metal shell, is matched with the metal shell and is attached to the inner wall of the metal shell tightly, at least two through grooves extend in a staggered mode are formed in each metal thin sheet, the metal shell forms closed space, and the cross section of the metal shell is of a rectangular structure. More than one of the metal thin sheets is staggered and overlapped, and the corresponding through grooves of the metal thin sheets form flow channels. The invention further relates to the processing and manufacturing method corresponding to the thin type heat tube structure. According to the thin type heat tube structure and the processing and manufacturing method thereof, the thickness of the thin type heat tube can be controlled precisely, integrity of a capillary structure is maintained, and the production qualified rate and product performance of the whole thin type heat tube are improved.
Description
Technical field
The present invention relates to High Efficiency Thermal conducting parts field, particularly a kind of thin heat pipe structure and processing and fabricating method thereof in industrial electronic heat radiation product.
Background technology
Thin type heat pipe is mainly used in the operating mode of heat conduction narrow space, is more typically applied in laptop heat-dissipation module, so require heat pipe more and more thinner, along with the development of panel computer and all-in-one, the range of application of thin plate heat pipe is also progressively increasing simultaneously.
Existing thin type heat pipe major part is that the capillary structure kind of its inner capillary structure and general heat pipe is identical by general heat pipe being flattened to acquisition, has equally several large classes such as slug type, groove-shaped, metal mesh type.But the thin type heat pipe of these types all exists some problems at present, such as processing request precision is higher, and yield rate is lower; When the carrying out of flattening process, can destroy original capillary structure, or in the situation that capillary structure precision is poor, capillary structure be pressed together, affect the performance of thin type heat pipe; Owing to taking the destruction of inner capillary structure into account, so flattening degree is restricted, be just difficult to obtain thinner heat pipe, be unfavorable for the improvement application of end product.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of thin heat pipe structure and processing and fabricating method thereof, thereby accurately control the thickness of thin type heat pipe, the integrality that retains so-called capillary structure is the sheet metal groove of mentioning below, improves production qualification rate and the properties of product of whole thin type heat pipe.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of thin heat pipe structure, and it comprises metal shell, sheet metal and groove;
Described metal shell inside is the chamber of hollow;
At least be provided with a sheet metal and be placed in the chamber of this metal shell inside and coordinate with metal shell and be close to its inwall, on described sheet metal, at least have two staggered grooves that extend.
Further, the space that described metal shell forms is airtight and its cross section is rectangular configuration.
Further, all staggered overlap joint and its corresponding groove formation flow channels of more than one described sheet metal.
Further, in the chamber of described metal shell, be filled with to be heated and become the liquid of steam.
A processing and fabricating method for thin heat pipe structure, it comprises the following step:
Having two ends is the metal shell of opening and the sheet metal with groove;
Sheet metal is placed in metal shell inside, and one end of sheet metal one end and metal shell sealing is affixed;
Metal shell inner vacuum is processed and injected working media by the other end of sheet metal;
The other end to metal shell seals, and makes whole metal shell form airtight cavity;
Airtight metal shell is flattened to processing.
Further, all staggered overlap joint and its corresponding groove form flow channel and are fixed in one end of sheet metal simultaneously more than one described sheet metal.
Further, one end of sheet metal one end and metal shell sealing and undertaken affixedly by the method for cold welding, and is undertaken again affixed by argon arc welding.
Further, the sealing of the other end of metal shell is by the method for cold welding and argon arc welding.
Advantage and good effect that the present invention has are:
1, the thickness of thin type heat pipe can by sheet metal number number control, control accuracy is higher, is therefore conducive to the control of thin type heat pipe dimensional structure parameter, reduces the difficulty of processing of thin type heat pipe.
2, sheet metal adopts modularized design, the quantity that can be arbitrarily placed in the sheet metal of metal shell inside by adjustment is adjusted the gross thickness of the sheet metal being superimposed, thereby adjust the thickness of whole thin type heat pipe, also provide possibility for realizing thinner heat pipe.
3, the tube wall of thin type heat pipe flattens the process of laminating sheet metal, need not destroy the structure of the flow channel of groove and formation, has guaranteed its integrality, and the performance that improves thin type heat pipe is played to positive role.
4, the preparation method adopting is applicable to the structure of the thin type heat pipe proposing, and simple flow and strong operability have been saved the cost of producing thin type heat pipe greatly.
Accompanying drawing explanation
Fig. 1 is fish bone well sheet metal overlap joint schematic diagram;
Fig. 2 is circular foil member overlap joint schematic diagram;
Fig. 3 is diamond-type metal thin slice overlap joint schematic diagram;
Fig. 4 is the overlap joint exploded view of diamond-type metal thin slice and metal shell inside;
Fig. 5 is the constitutional diagram of diamond-type metal thin slice and metal shell inside;
Fig. 6 is the flow chart of steps of thin heat pipe structure processing and fabricating method.
In figure:
1, metal shell 2, sheet metal 3, groove
The specific embodiment
Below in conjunction with accompanying drawing and concrete embodiment, the present invention is further illustrated.
Embodiment 1, a kind of thin heat pipe structure, it comprises metal shell 1, sheet metal 2 and groove 3;
Described metal shell 1 forms confined space and its cross section is rectangular configuration;
Described metal shell inside is the chamber of hollow, and in its chamber, being filled with is heated becomes the liquid of steam;
At least being provided with a sheet metal 2 is placed in the chamber of this metal shell 1 inside and coordinates with metal shell and be close to its inwall, on described sheet metal, at least have two staggered grooves 3 that extend, and more than one described sheet metal 2 all staggered overlap joint and its corresponding groove 3 form flow channel;
In metal shell, be also filled with working media, this working media is to be heated to become the liquid of steam.
Embodiment 4, as in Figure 3-5, a kind of thin heat pipe structure, it comprises metal shell 1, sheet metal 2 and groove 3;
Described metal shell inside is the chamber of hollow;
Described metal shell 1 forms confined space and its cross section is rectangular configuration, and its material adopts high-thermal conductive metal copper;
At least being provided with a sheet metal 2 is placed in the chamber of this metal shell 1 inside and coordinates with metal shell and be close to its inwall, the groove 3 of uniform several rhombuses on described sheet metal, described sheet metal 2 staggered overlap joints and its corresponding groove 3 of two form flow channel, and described sheet metal is the copper sheet of 0.2mm thickness.
The method of the processing and fabricating of embodiment 1-4, as shown in Figure 6, has metal shell that two ends are opening and the sheet metal with groove;
The staggered sheet metal having overlapped is placed in metal shell inside, and one end of sheet metal one end and metal shell seals and undertaken affixed by the method for cold welding and argon arc welding;
Metal shell inner vacuum is processed and injected working media by the other end of sheet metal, described working media is to be heated to become the liquid of steam;
The other end of metal shell is sealed by the method for cold welding and argon arc welding, make whole metal shell form airtight cavity;
Airtight metal shell is flattened to processing.
Described metal shell adopts the technology moulding of drawing extruding to realize; And for mass product, also can adopt and first make a longer thin type heat pipe, finally cut off again the mode of cutting apart and enhance productivity.
The high heat conduction of metal shell material selection is easy to the metal of processing welding, as copper, aluminium, stainless steel etc.; And working media is generally selected the medium that any chemical change does not occur with shell material, as water, ethylene glycol, freon etc., concrete selection can be determined with reference to the design serviceability temperature of thin type heat pipe; The making thickness of sheet metal can be as required, realizes the processing and fabricating of the above any specification of 0.02mm.
Described in above-described embodiment 1-4, because sheet metal thickness is controlled, therefore avoid the structure of flow channel in conventional heat pipe preparation method to process the precision problem bringing; In the process of flattening, the staggered overlap joint of sheet metal can become inner supporting construction, is beneficial to the accurate control of the stable and thickness of structure.
The operation principle of this patent:
After the heating of thin type heat pipe one end, inner working media gasifies and forms steam rapidly under negative pressure of vacuum, under the poor effect of inner saturation pressure, flows to rapidly the other end, after other end condensation, forms liquid working media; The effect of the capillary groove on sheet metal is to make liquid-working-medium be back to rapidly bringing-up section, forms like this circulation, reaches the object that heat is brought to condensation end by fire end.
Above embodiments of the invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variation and improvement etc. of doing according to the scope of the invention, within all should still belonging to this patent covering scope.
Claims (8)
1. a thin heat pipe structure, is characterized in that: it comprises metal shell (1), sheet metal (2) and groove (3);
Described metal shell inside is the chamber of hollow;
At least be provided with a sheet metal (2) and be placed in the inner chamber of this metal shell (1) and coordinate with metal shell and be close to its inwall, on described sheet metal, at least have the grooves (3) of two staggered extensions.
2. a kind of thin heat pipe structure according to claim 1, is characterized in that: described metal shell (1) forms confined space and its cross section is rectangular configuration.
3. a kind of thin heat pipe structure according to claim 1 and 2, is characterized in that: more than one described sheet metal (2) is staggered overlap joint and its corresponding groove (3) formation flow channel all.
4. a kind of thin heat pipe structure according to claim 1, is characterized in that: in the chamber of described metal shell (1), being filled with is heated becomes the liquid of steam.
5. a processing and fabricating method for thin heat pipe structure, is characterized in that: having two ends is the metal shell of opening and the sheet metal with groove;
Sheet metal is placed in metal shell inside, and one end of sheet metal one end and metal shell sealing is affixed;
Metal shell inner vacuum is processed and injected working media by the other end of sheet metal;
The other end to metal shell seals, and makes whole metal shell form airtight cavity;
Airtight metal shell is flattened to processing.
6. the processing and fabricating method of a kind of thin heat pipe structure according to claim 5, is characterized in that: more than one described sheet metal is staggered overlap joint and its corresponding groove formation flow channel all, and is fixed in one end of sheet metal simultaneously.
7. according to the processing and fabricating method of a kind of thin heat pipe structure described in claim 5 or 6, it is characterized in that: one end of sheet metal one end and metal shell sealing and undertaken affixedly by the method for cold welding, and undertaken again affixed by argon arc welding.
8. the processing and fabricating method of a kind of thin heat pipe structure according to claim 5, is characterized in that: the sealing of the other end of metal shell is by the method for cold welding and argon arc welding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310756391.5A CN103776289A (en) | 2013-12-30 | 2013-12-30 | Thin type heat tube structure and processing and manufacturing method thereof |
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| CN201310756391.5A CN103776289A (en) | 2013-12-30 | 2013-12-30 | Thin type heat tube structure and processing and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI824446B (en) * | 2022-03-18 | 2023-12-01 | 汎海科技股份有限公司 | Dissipating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354220A (en) * | 2008-08-13 | 2009-01-28 | 杨洪武 | Imbibition chip, imbibition core and plate type integrated hot pipe |
| CN203657577U (en) * | 2013-12-30 | 2014-06-18 | 天津芯之铠光电技术研发有限公司 | A thin type heat pipe structure |
-
2013
- 2013-12-30 CN CN201310756391.5A patent/CN103776289A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354220A (en) * | 2008-08-13 | 2009-01-28 | 杨洪武 | Imbibition chip, imbibition core and plate type integrated hot pipe |
| CN203657577U (en) * | 2013-12-30 | 2014-06-18 | 天津芯之铠光电技术研发有限公司 | A thin type heat pipe structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI824446B (en) * | 2022-03-18 | 2023-12-01 | 汎海科技股份有限公司 | Dissipating device |
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Application publication date: 20140507 |