CN100416210C

CN100416210C - Multilayer capillary texture forming method for heat pipe and product thereof

Info

Publication number: CN100416210C
Application number: CNB2004100871827A
Authority: CN
Inventors: 李嘉豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-04
Filing date: 2004-11-04
Publication date: 2008-09-03
Anticipated expiration: 2024-11-04
Also published as: CN1769829A

Abstract

The present invention relates to a multilayer capillary tissue forming method for a heat pipe, and a product thereof. The method comprises the following steps that the capillary tissues of a multilayer separated woven net are arranged in a heat pipe body after overlapped and curled, the capillary tissues form an open cylindrical shape, and the heat pipe body is shrunk, so the capillary tissues form a closed cylindrical shape due to the pipe shrinking process step of the heat pipe body. The product formed by the method comprises a hollow heat pipe body and the multilayer separated and overlapped capillary tissues of the woven net at the inner wall of the heat pipe body, wherein at least one layer of the capillary tissues forms a closed cylindrical shape.

Description

Heat pipe multilayer capillary texture forming structure

Technical field

The present invention relates to a kind of multilayer capillary texture forming method for heat pipe and products thereof, relate in particular to a kind of multilayer capillary texture and insert manufacturing process behind the tube body of heat pipe inside and products thereof.

Background technology

Characteristics such as high capacity of heat transmission, heat transfer rate are fast because heat pipe has, high thermoconductivity, in light weight, no mobile component, simple in structure and multipurpose are so can transmit a large amount of heat and not consume electric power, the therefore 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 to have capillary mesh grid etc., utilizes the capillarity of capillary structure, can be convenient to the transmission of working fluid (working fluid) in the heat pipe.Simultaneously, in order to improve the capillary force of capillary structure, also can be with the capillary structure multiple stratification, to increase the transmission quantity of its working fluid.

As shown in Figure 1, the mesh grid capillary structure 1a of known heat pipe, mode constitutes the multilayer shape to curl.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; But, capillary structure 1a is 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, cause capillary structure 1a can't be intactly to fit with the inwall of tube body of heat pipe 2a because of meeting thermal softening.

Given this, the inventor is for improving and solve 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 present invention of above-mentioned defective finally.

Content of the present invention

Main purpose of the present invention is to provide a kind of multilayer capillary texture forming method for heat pipe and products thereof, it is the draw operation by tube body of heat pipe, make the layer and the mesh grid capillary structure of layer can utilize the draw operation of described tube body of heat pipe and fit tightly on the tube body of heat pipe internal face, thus increase heat pipe capillary power and liquid transmission quantity thereof.

To achieve these goals, the invention provides a kind of multilayer capillary texture forming method for heat pipe, after it is overlapping the curling of mesh grid capillary structure that multilayer is separated, be placed on a tube body of heat pipe inside, and make capillary structure form nonocclusive drum, again described tube body of heat pipe is carried out the draw, make described capillary structure form the drum of sealing because of the draw operation of described tube body of heat pipe.

To achieve these goals, the invention provides a kind of heat pipe multilayer capillary texture forming structure, comprise the tube body of heat pipe of a hollow and the mesh grid capillary structure that described tube body of heat pipe inwall place is separated and be stacked in to multilayer; Wherein, the capillary structure of internal layer forms the drum of sealing, is placed on the side place that outermost capillary structure part is arranged on described tube body of heat pipe inwall.In addition, the capillary structure that is placed on internal layer is and curls and its relative dual-side docks mutually.

Brief description of drawings

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

Fig. 2 is the action schematic diagram that multilayer capillary texture is curled in the present invention;

Fig. 3 is the schematic perspective view that multilayer capillary texture of the present invention forms non-closed cylinder shape;

Fig. 4 is the action schematic diagram that the present invention puts into multilayer capillary texture tube body of heat pipe inside;

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

Fig. 6 is the sectional schematic diagram of heat pipe product of the present invention;

Fig. 7 is the sectional schematic diagram of the heat pipe product of another embodiment of the present invention.

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

1a-capillary structure 2a-tube body of

heat pipe

1,1 '-capillary structure 2-tube body of heat pipe

The specific embodiment

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

To shown in Figure 6, the invention provides a kind of multilayer capillary texture forming method for heat pipe as Fig. 2, it is after the draw operation by tube body of heat pipe, make layer with layer mesh grid

capillary structure

1,1 ' can fit tightly on the internal face of tube body of heat pipe.

As shown in Figures 2 and 3, at first, prepare mesh grid capillary structure that multilayer separates 1,1 ' and it is overlapped each other stacked; Wherein, be placed on outermost capillary structure 1, its width is wideer than the capillary structure 1 ' that will be placed on internal layer, and

capillary structure

1,1 ' is curled, and forms nonocclusive drum 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 of tube body of heat pipe 2 is greater than its caliber size that will be shaped, therefore when

capillary structure

1,1 ' being placed on tube body of heat pipe 2 inside, can make

capillary structure

1,1 ' tube body of heat pipe 2 inner form non-sealing circumference drum, as shown in Figure 5.

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 that will be shaped, simultaneously, in the draw operation of tube body of heat pipe 2, can will place the

capillary structure

1,1 ' in it to push and the drum of formation sealing in the lump, each layer that separates and layer

capillary structure

1,1 ' 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, be maintained the good thermal conduction characteristic of described heat pipe thus.

In addition, as shown in Figure 7, be the sectional schematic diagram of another embodiment of the present invention heat pipe product.Wherein, be placed on outermost capillary structure 1 and also can local be arranged on a side place of tube body of heat pipe 2 inwalls, and only there is the capillary structure 1 ' that is placed on internal layer to form curling and the butt joint shape, so, 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, multilayer capillary texture forming method for heat pipe of the present invention and products thereof, because its multilayer

capillary texture

1,1 ' is when inserting tube body of heat pipe 2, do not need to be curled in advance the closed cylinder shape, therefore insert action easily, and the draw operation of process tube body of heat pipe 2, can be because of the draw strength of tube body of heat pipe 2, and force

capillary structure

1,1 ' to fit tightly on the inwall of tube body of heat pipe 2, to offer the support force of

capillary structure

1,1 ' appropriateness.

In sum, multilayer capillary texture forming method for heat pipe of the present invention and products thereof has practicality, novelty and creativeness, and structure of the present invention also never sees like product and public use, does not more publish before the application on any publication, meets the requirement of application for a patent for invention fully.

The above only is the preferred embodiments of the present invention, be not so promptly limit claim of the present invention, the equivalent structure transformation that every utilization specification of the present invention 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 invention.

Claims

1. a heat pipe multilayer capillary texture forming structure is characterized in that comprising the tube body of heat pipe of a hollow and the mesh grid capillary structure that described tube body of heat pipe inwall place is separated and be stacked in to multilayer; Wherein, the capillary structure of internal layer forms the drum of sealing, is placed on the side place that outermost capillary structure part is arranged on described tube body of heat pipe inwall.

2. heat pipe multilayer capillary texture forming structure as claimed in claim 1, the capillary structure that it is characterized in that being placed on described internal layer are curls and its relative dual-side docks mutually.