CN2757081Y

CN2757081Y - Heat pipe multilayer capillary tissue forming structure

Info

Publication number: CN2757081Y
Application number: CN 200420117692
Authority: CN
Inventors: 李嘉豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-04
Filing date: 2004-11-04
Publication date: 2006-02-08
Anticipated expiration: 2014-11-04

Abstract

The utility model relates to heat pipe multilayer capillary tissue forming structure and comprises a hollow heat pipe body and woven mesh capillary tissue arranged on the position of the inner wall of the heat pipe body, wherein the capillary tissue is formed into the cylinder shape by at least folding a woven mesh once. The woven mesh capillary tissue is formed into the multilayer overlapped stacked shape by folding the woven mesh capillary tissue, and then the multilayer capillary tissue is inserted in the heat pipe body. Through the working procedure of the pipe reduction of the heat pipe body, the capillary tissue is forced to be tightly bonded on the inner wall of the heat pipe body, therefore the capillary force and the liquid transmission quantity of the heat pipe can be increased.

Description

Heat pipe multilayer capillary texture forming structure

Technical field

The utility model relates to a kind of Heat Pipe Capillary Organization Structure, relates in particular to a kind of heat tube capillary structure with multilayer capillary texture.

Background technology

Because characteristics such as heat pipe has high capacity of heat transmission, heat transfer rate is fast, pyroconductivity is high, in light weight, no mobile component, simple in structure and multipurposes, so can transmit a large amount of heat and not consume electric power, the therefore radiating requirements of very suitable electronic product.In addition, all be provided with capillary structure (wick structure) at known heat pipe inwall, this capillary structure can be to have capillary mesh grid etc., by the capillarity of capillary structure, is convenient to the transmission of working fluid (workingfluid) in the heat pipe.Simultaneously, for improving the capillary force of capillary structure, also the capillary structure multiple stratification can be increased the transmission quantity of its working fluid.

As shown in Figure 1, the mesh grid capillary structure 1a of known heat pipe constitutes the multilayer shape in the mode of curling.Yet, after capillary structure 1a curls and inserts tube body of heat pipe 2a inside, must be through one sintering (sintering) manufacture process, so that capillary structure 1a can be fitted on the inwall of tube body of heat pipe 2.When capillary structure 1a in this sintering manufacture process, because mesh grid is very soft, the adherent adaptation of adding capillary structure 1a lap A is not good, therefore in the program of high annealing, can subside, can't be intactly fit with the inwall of tube body of heat pipe 2a to cause capillary structure 1a because of meeting thermal softening.

Given this, the design artificially improves and solves the defective that exists in the above-mentioned prior art, through concentrating on studies and cooperating the utilization of scientific principle, proposes a kind of reasonable in design and effectively improve the utility model of above-mentioned defective finally.

Content of the present utility model

Main purpose of the present utility model is to provide a kind of heat pipe multilayer capillary texture forming structure, it is according to required folding through at least once of reality with a mesh grid capillary structure, make this mesh grid capillary structure form the overlapping stacked capillary structure of multilayer, and the draw operation by tube body of heat pipe, the layer and the mesh grid capillary structure of layer can be fitted tightly on the tube body of heat pipe internal face by the draw operation of this tube body of heat pipe, thereby increase heat pipe capillary power and liquid transmission quantity thereof.

In order to realize above-mentioned purpose, the utility model provides a kind of heat pipe multilayer capillary texture forming structure, comprises a hollow heat pipe body and the mesh grid capillary structure that is arranged on this tube body of heat pipe inwall place; Wherein, this capillary structure through at least once folding, makes this capillary structure form drum by one deck mesh grid.By folding this mesh grid capillary structure, and make it form the overlapping stacked shape of multilayer, again this multilayer capillary texture is placed in the tube body of heat pipe, and the draw operation of process tube body of heat pipe, force this capillary structure to fit tightly on the inwall of tube body of heat pipe, thereby realize above-mentioned purpose.

Heat pipe multilayer capillary texture forming structure of the present utility model can make the mesh grid capillary structure fit tightly on the tube body of heat pipe internal face, increases heat pipe capillary power and liquid transmission quantity thereof.

Brief description of drawings

Fig. 1 is the sectional schematic diagram of known heat pipe finished product;

The schematic diagram that Fig. 2 curls multilayer capillary texture for the utility model;

Fig. 3 forms the schematic perspective view of non-closed cylinder shape for multilayer capillary texture of the present utility model;

The action schematic diagram that Fig. 4 inserts multilayer capillary texture tube body of heat pipe inside for the utility model;

Fig. 5 is the sectional schematic diagram of tube body of heat pipe of the present utility model without draw operation;

Fig. 6 is the sectional schematic diagram of the heat pipe finished product of the utility model embodiment;

Fig. 7 is the sectional schematic diagram of the heat pipe of another embodiment of the utility model.

In the accompanying drawing, the list of parts of each label representative is as follows:

The 1a-capillary structure

The 2a-tube body of heat pipe

The 1-capillary structure

The 10-first capillary layer 11-second capillary layer

The 2-tube body of heat pipe

The specific embodiment

In order to make those skilled in the art further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, accompanying drawing only provide with reference to and usefulness is described, be not to be used for limiting the utility model.

To shown in Figure 6, the utility model provides a kind of heat pipe multilayer capillary texture forming structure as Fig. 2, and it can fit tightly on tube body of heat pipe 2 internal faces the layer and the mesh grid capillary structure 1 of layer by after the draw operation of tube body of heat pipe 2.

As shown in Figures 2 and 3, at first, prepare a mesh grid capillary structure 1, and this mesh grid capillary structure is required through at least once folding according to reality, constitute the overlapping stacked capillary structure of multilayer.The utility model for embodiment in, mesh grid capillary structure 1 forms first capillary layer 10 and second capillary layer 11 through once folding.Wherein, first capillary layer 10 is for will be placed on outermost capillary structure, its width is wideer than second capillary layer 11 that will be placed on internal layer, first and second

capillary layer

10,11 is curled, that is: first capillary layer, 10 circumferential lengths are longer than second capillary layer 11, form non-closed cylinder shape as shown in Figure 3.

As Fig. 4 and shown in Figure 5, prepare a tube body of heat pipe 2 again, and the caliber size that the caliber of tube body of heat pipe 2 is shaped greater than its desire, therefore when capillary structure 1 is placed on tube body of heat pipe 2 inside, can make first and second

capillary layer

10,11 at the nonocclusive drum of tube body of heat pipe 2 inner formation, as shown in Figure 5.

As shown in Figure 6, at last, opposite heat tube body 2 carries out draw program, tube body of heat pipe 2 is contracted to the caliber size of institute's desire shaping, simultaneously, through the operation of tube body of heat pipe 2 draws, can will place first and second

capillary layer

10,11 extruding within it in the lump and form the drum that seals, the layer and the capillary structure 1 of layer are fitted tightly on the inwall of tube body of heat pipe 2, thereby can in the program of high annealing, be difficult for subsiding, keep the good thermal conduction characteristic of this heat pipe.

In addition, because first and second

capillary layer

10,11 is mesh grid, and this mesh grid have along tube body of heat pipe 2 axially extended warps with along heat pipe 2 radial loop around parallel braiding form, wherein, the mesh grid warp of first and second

capillary layer

10,11 and parallel can be made by the different material of two kinds of fusing points that a fusing point is higher and a fusing point is lower respectively, and for example warp is a phosphor bronze and parallel is an oxygen-free copper; Thus, in sintering process, can make than low melting point person and arrive sintering temperature earlier and sintering, higher melt person then is used to provide than low melting point required support in sintering process.

By above-mentioned contexture, can obtain heat pipe multilayer capillary texture forming structure of the present utility model.

As shown in Figure 7, be the sectional schematic diagram of the heat pipe of another embodiment of the utility model.Wherein, place outermost first capillary layer 10 also to can be the part and only be arranged on a side place of tube body of heat pipe 2 inwalls, and only there is second capillary layer 11 that places internal layer to form the curly form of circumference, thus, be the capillary force and the liquid transmission quantity of raising heat pipe part, and design the capillary structure 1 of this local thickness layer.

Therefore, by multilayer capillary texture forming method for heat pipe of the present utility model and finished product thereof, because its multilayer capillary texture 1 is when inserting tube body of heat pipe 2, do not need to be curled in advance the drum of sealing, therefore it is easy to insert process, and afterwards via the draw operation of tube body of heat pipe 2, can be because of the draw strength of tube body of heat pipe 2, and force first and second

capillary layer

10,11 to fit tightly on the inwall of tube body of heat pipe 2, the support force of capillary structure 1 appropriateness is provided.

In sum, the utility model is real to be rare novel practical novel product, it can reach the application target of expection really, solve the defective that exists in the prior art, have novelty and creativeness, meet the requirement of novel patent application fully, file an application according to Patent Law, would like to ask detailed survey and authorize this case patent, to ensure designer's right.

The above only is a preferred embodiment of the present utility model, be not so promptly limit claim of the present utility model, the equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are done, or directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present utility model.

Claims

1. a heat pipe multilayer capillary texture forming structure comprises a hollow heat pipe body and the mesh grid capillary structure that is arranged on described tube body of heat pipe inwall place; It is characterized in that described capillary structure through at least once folding, makes described capillary structure form drum by one deck mesh grid.

2. heat pipe multilayer capillary texture forming structure as claimed in claim 1 is characterized in that described capillary structure through once folding, forms first capillary layer and second capillary layer.

3. heat pipe multilayer capillary texture forming structure as claimed in claim 2 is characterized in that described first capillary layer for placing the outermost capillary structure of described tube body of heat pipe inwall, and its circumferential length is longer than second capillary layer that places internal layer.

4. heat pipe multilayer capillary texture forming structure as claimed in claim 2 is characterized in that described outermost first capillary layer of described tube body of heat pipe inwall that places is a local side that is arranged on the tube body of heat pipe inwall.

5. heat pipe multilayer capillary texture forming structure as claimed in claim 2, it is characterized in that described first and second capillary layer by along the axially extended warp of tube body of heat pipe with along the heat pipe caliber to around parallel woven and formed, and the warp of described first and second capillary layer and parallel material higher by a fusing point respectively and that a fusing point is lower are made.

6. heat pipe multilayer capillary texture forming structure as claimed in claim 5 is characterized in that described warp is a phosphor bronze, and parallel is an oxygen-free copper.