CN2773601Y

CN2773601Y - Multi-layer capillary tissue of hot pipe

Info

Publication number: CN2773601Y
Application number: CN 200520004840
Authority: CN
Inventors: 徐惠群
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-17
Filing date: 2005-02-17
Publication date: 2006-04-19
Anticipated expiration: 2015-02-17

Abstract

The utility model relates to the multi-layer capillary tissue of a heat pipe and comprises a hollow heat pipe body with an inner wall, outer layer capillary tissue bonded on the inner wall of the heat pipe body and inner layer capillary tissue overlapped with the outer layer capillary tissue, wherein the inner layer capillary tissue is composed of woven meshes. Each woven mesh is formed by interweaving a plurality of woven lines, and the diameter of the woven lines forming the outer layer capillary tissue is thinner than the diameter of the woven lines forming the inner layer capillary tissue. The variation causes the capillary tissue to simultaneously have the capillary force and the supporting performance, therefore the defect of the prior art is solved.

Description

The heat pipe multilayer capillary texture

Technical field

The utility model relates to a kind of heat pipe multilayer capillary texture, relates in particular to a kind of being applied on the heat pipe with multilayer capillary texture, has the heat pipe multilayer capillary texture of good capillary force and attaching property.

Background technology

Because characteristics such as heat pipe has that heat-transfer capability is strong, heat transfer rate is fast, pyroconductivity is high, in light weight, no mobile component, simple in structure and purposes are many are so can conduct heat and not consume electric power in a large number, the radiating requirements of very suitable electronic product.In addition, known heat pipe inwall all is provided with capillary structure (wick structure), described capillary structure can be has capillary mesh grid etc., utilizes the capillarity of capillary structure, can make things convenient for the transmission of working fluid (working fluid) in the heat pipe.Simultaneously, for the capillary force that improves capillary structure and the capillary transfer amount of working fluid, the capillary structure multiple stratification can be increased the transmission quantity of working fluid.

As shown in Figure 1, the mesh grid capillary structure 1a of known heat pipe constitutes multilayer with the continuous crisping mode; Yet, after capillary structure 1a curls and inserts tube body of heat pipe 2a inside, must capillary structure 1a be fitted on the inwall of tube body of heat pipe 2 through one sintering (sintering) manufacture process; Yet, capillary structure 1a is in this sintering manufacture process, because mesh grid is very soft, the adherent adaptation of capillary structure 1a lap A is bad, and there is not extra supporting construction, so in the program of high annealing, can cause to subside and wait the bad defective generation of sintering, capillary structure 1a can't be intactly fitted with the inwall of tube body of heat pipe 2a because of meeting thermal softening.

Because the defective that exists in the above-mentioned known technology, the design people relies on and to be engaged in the sector experience for many years, concentrates on studies and cooperates actual utilization, in line with excelsior spirit, active research improvement 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, be to provide a kind of heat pipe multilayer capillary texture, its capillary structure that mesh grid diameter is thinner is attached on the inwall of tube body of heat pipe, provide the internal layer capillary structure required support force with the thicker capillary structure of diameter, make capillary structure have capillary force and support performance simultaneously, thereby solve the defective that exists in the prior art.

In order to realize described purpose, the utility model provides a kind of heat pipe multilayer capillary texture, comprise hollow heat pipe body with inwall, be attached on the described tube body of heat pipe inwall outer capillary structure and with the internal layer capillary structure of the overlapping setting of described outer capillary structure; Wherein, described outer, internal layer capillary structure is constituted by mesh grid, and each mesh grid is that many litzendraht wires are interwoven, and it is thinner than the diameter of the litzendraht wire of the described internal layer capillary structure of formation to constitute the diameter of litzendraht wire of described outer capillary structure.

Brief description of drawings

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

Fig. 2 is that the utility model is made curling action schematic diagram with multilayer capillary texture;

Fig. 3 is the three-dimensional exploded view of the utility model tube body of heat pipe and multilayer capillary texture;

Fig. 4 is the sectional schematic diagram of the utility model heat pipe finished product;

Fig. 5 is the part enlarged detail of Fig. 4.

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

1a-capillary structure 2a-tube body of heat pipe

1-tube body of heat pipe 10-inwall

The outer capillary structure 20-of 2-mesh grid

200-litzendraht wire 3-internal layer capillary structure

30-mesh grid 300-litzendraht wire

The specific embodiment

In order to make those skilled in the art can 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 explanation, be not to be used for limiting the utility model.

As Fig. 2, Fig. 3 and shown in Figure 4, the utility model provides a kind of heat pipe multilayer capillary texture, comprises hollow heat pipe body 1, outer capillary structure 2 and internal layer capillary structure 3; Wherein:

As shown in Figure 2, outer, internal layer

capillary structure

2,3 all is 20,30 formations of mesh grid; In embodiment of the present utility model, outer capillary structure 2 is formed by two layers of mesh grid, 20 overlapping settings, and internal layer capillary structure 3 also is made of multi-layer braided net 30 overlapping settings.With

mesh grid

20,30 outer, internal layer

capillary structure

2,3 overlap each other be provided with after, more all

mesh grids

20,30 are curled, thereby form circle-shaped entirely.

As shown in Figures 3 and 4, tube body of heat pipe 1 inside is hollow form, and outer, internal layer

capillary structure

2,3 after curling are provided with wherein.Tube body of heat pipe 1 inside is formed with inwall 10, and outer capillary structure 2 is attached on the inwall 10 of tube body of heat pipe 1, and internal layer capillary structure 3 and outer capillary structure 2 overlapping settings, outer capillary structure 2 is between tube body of heat pipe 1 and internal layer capillary structure 3.

As shown in Figure 5, the

mesh grid

20,30 of outer, internal layer

capillary structure

2,3 of the present utility model is interwoven for many litzendraht wires 200,300, and it is thinner than the diameter of the litzendraht wire 300 of formation internal layer capillary structure 3 to constitute the diameter of litzendraht wire 200 of outer capillary structure 2.Because the diameter of the litzendraht wire 200 of outer capillary structure 2 is thinner, thus soft, have adherent preferably characteristic, thereby can improve the capillary force of the inwall 10 of tube body of heat pipe 1, and the fiber that forms is also thinner, so can increase its capillary force again; Yet, also because the diameter of outer capillary structure 2 is thinner, and when Pipe Cutting, subsides easily or in the program of high annealing, meet thermal softening, the stickiness of influence and tube body of heat pipe 2 inwalls.Because the stiff nature of the litzendraht wire 300 thick diameters of internal layer capillary structure 3, in the high annealing program, be difficult for to meet thermal softening and subside, so when annealing, can support outer capillary structure 2, outer capillary structure 2 is fitted tightly on the inwall 10 of tube body of heat pipe 1, and internal layer capillary structure 3 also can provide extra capillary force and transmission quantity simultaneously.

Therefore, heat pipe multilayer capillary texture of the present utility model, because the diameter of the litzendraht wire 300 of internal layer capillary structure 3 is thicker, so can support outer capillary structure 2, guarantee outer capillary structure 2 in when annealing the integrality with the applying of tube body of heat pipe 2 inwalls, and the thinner diameter of the litzendraht wire 200 that can utilize outer capillary structure 2, obtain capillary force and adherent property preferably.

In sum, heat pipe multilayer capillary texture of the present utility model can utilize above-mentioned structure really, realizes described effect.And do not see before the utility model application that publication is also unexposed to be used, meet requirements such as novel novelty of patent and creativeness, file an application according to Patent Law.

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, 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. heat pipe multilayer capillary texture comprises:

Tube body of heat pipe is provided with inwall;

Outer capillary structure is attached to described tube body of heat pipe on inwall;

The internal layer capillary structure, with the overlapping setting of described outer capillary structure, described outer capillary structure is arranged between described tube body of heat pipe and the described internal layer capillary structure;

It is characterized in that described outer, internal layer capillary structure is constituted by mesh grid, each mesh grid is that many litzendraht wires are interwoven, and the diameter of litzendraht wire that constitutes described outer capillary structure is thinner than the diameter of the litzendraht wire of the described internal layer capillary structure of formation.

2. heat pipe multilayer capillary texture as claimed in claim 1 is characterized in that described outer capillary structure is formed by the overlapping setting of the described mesh grid of multilayer.

3. heat pipe multilayer capillary texture as claimed in claim 1 is characterized in that described internal layer capillary structure is formed by the overlapping setting of the described mesh grid of multilayer.