CN2757080Y - Support structure of heat pipe multilayer capillary tissue - Google Patents

Abstract

The utility model relates to the supporting structure of heat pipe multilayer capillary tissue and comprises a hollow heat pipe body and the multilayer woven mesh capillary tissue separated and superposed on the position of the inner wall of the heat pipe body, wherein the tissue forms the cylinder shape. The melting point of the capillary tissue material arranged on the outmost layer of the heat pipe body is lower than the melting point of the capillary tissue material arranged on the inner layer of the heat pipe body. Therefore, the capillary tissue of the inner layer of the heat pipe body can remain the function of supporting a skeleton because of higher melting point in the process of the sintering manufacture and the capillary tissue of the outmost layer of the heat pipe body is caused to be capable of being completely applied to the inner wall of the heat pipe body. The capillary tissue of the outmost layer of the heat pipe body can be sintered and applied between the capillary tissue of the inner layer of the heat pipe body and the inner wall of the heat pipe body because of lower melting point to become the capillary structure of a heat pipe with good functions.

Description

The supporting construction of heat pipe multilayer capillary texture

Technical field

The utility model relates to a kind of supporting construction of heat pipe multilayer capillary texture, relates in particular to a kind of heat pipe that makes in sintering (sintering) manufacture process, guarantees the multilayer capillary texture supporting construction of multilayer capillary texture and tube body of heat pipe inwall applying integrality.

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, be provided with capillary structure (wick structure) at the inwall of known heat pipe, this capillary structure can be to have capillary mesh grid etc.By the capillarity of this capillary structure, can be convenient to the transmission of working fluid (working fluid) in the heat pipe.Simultaneously, for improving the capillary force of capillary structure, also can be with this 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 forms the shape of multilayer in the mode of curling.Yet, after capillary structure 1a curls and is placed on 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, 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 supporting construction of heat pipe multilayer capillary texture, it is the draw operation by tube body of heat pipe, the layer and the mesh grid capillary structure of layer can be fitted tightly by the draw operation of this tube body of heat pipe on the internal face of tube body of heat pipe, and the capillary structure that material melting point is lower is arranged on the outermost layer place of tube body of heat pipe, utilizes the higher capillary structure of fusing point to provide the outermost layer capillary structure to be adjacent to support force required when the inwall of tube body of heat pipe.

To achieve these goals, the utility model provides a kind of supporting construction of heat pipe multilayer capillary texture, comprises that a hollow heat pipe body and multilayer separate and be stacked in the mesh grid capillary structure at the inwall place of this tube body of heat pipe.Wherein, this capillary structure forms drum, and it is lower than the fusing point of the material of the capillary structure that is placed on internal layer to be placed on the fusing point of material of the outermost capillary structure of tube body of heat pipe.Thus, the internal layer capillary structure can keep the function of its support frame because of fusing point is higher in the sintering manufacture process, make on the inwall that is fitted in tube body of heat pipe that the outermost layer capillary structure can be intact, and can paste between the inwall of internal layer capillary structure and tube body of heat pipe by sintering because of outermost layer capillary structure fusing point is lower, become the good heat tube capillary structure of function.

The supporting construction of heat pipe multilayer capillary texture of the present utility model can be guaranteed the applying that the internal face of multilayer capillary texture and tube body of heat pipe is tight, complete.

Brief description of drawings

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

The action 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;

Fig. 4 is placed on multilayer capillary texture for the utility model the action schematic diagram of the inside of tube body of heat pipe;

Fig. 5 does not pass through the sectional schematic diagram of draw operation for the utility model tube body of heat pipe;

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

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

1,1 '-capillary structure

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 supporting construction of heat pipe multilayer capillary texture as Fig. 2, and 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 multi-layer braided net capillary structure 1,1 ', and it is stacked that it is overlapped each other.Wherein, the width that is placed on the outermost capillary structure 1 of tube body of heat pipe is wideer than the capillary structure 1 ' that will be placed on internal layer, and capillary structure 1,1 ' curled, that is: the circumferential length that be placed on outermost capillary structure 1 forms shape as shown in Figure 3 than the capillary structure 1 ' length that will be placed on internal layer.

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 the caliber size of its desire shaping.When capillary structure 1,1 ' is placed on tube body of heat pipe 2 when inner, can make capillary structure 1,1 ' form nonocclusive drum in that tube body of heat pipe 2 is inner, 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 capillary structure 1,1 ' extruding in it to form drum in the lump, the layer and the capillary structure 1,1 ' 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.

The utility model principal character is, in capillary structure 1,1 ', makes the fusing point of the material that is placed on tube body of heat pipe 2 outermost capillary structures 1 lower than the fusing point of the material of the capillary structure 1 ' that is placed on internal layer.The utility model for embodiment in, outermost capillary structure 1 can be phosphor bronze, the capillary structure 1 ' of internal layer then is an oxygen-free copper.Thus, when heat pipe in the sintering manufacture process, owing to the fusing point of the material that is placed on outermost capillary structure 1 is low, therefore can first melting sintering and stick together on the inwall of tube body of heat pipe 2, gluing is between tube body of heat pipe 2 and internal layer capillary structure 1 ' simultaneously, and when outermost layer capillary structure 1 arrive sintering temperature and melting softening after, tube body of heat pipe 2 all is higher than under the situation of outermost layer capillary structure 1 with internal layer capillary structure 1 at fusing point, and sintering temperature is before the melting temperature of no show tube body of heat pipe 2 and internal layer capillary structure 1 ', internal layer capillary structure 1 ' can be because of not meeting heat with outermost layer capillary structure 1 softening subsiding, so internal layer capillary structure 1 ' still can keep the function of its support frame in this sintering manufacture process, make on the inwall that fits in tube body of heat pipe 2 that outermost layer capillary structure 1 can be intact, become the good heat tube capillary structure of function.

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

Therefore, the supporting construction of the utility model heat pipe multilayer capillary texture, because its multilayer capillary texture 1,1 ' 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 operation, 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, force capillary structure 1,1 ' fits tightly on the inwall of tube body of heat pipe 2, so that capillary structure 1 to be provided, 1 ' the suitable support force, add the support of the higher capillary structure 1 ' of the fusing point of inner layer material, the integrality that more can keep outermost capillary structure 1 to fit at when annealing and tube body of heat pipe 2 inwalls, thus the due function of heat pipe and its good state kept.

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 (2)

1. the supporting construction of a heat pipe multilayer capillary texture is characterised in that, comprises that a hollow heat pipe body and multilayer separate and be stacked and placed on the mesh grid capillary structure at described tube body of heat pipe inwall place; Wherein, described capillary structure forms drum, and it is lower than the fusing point of the material of the capillary structure that is placed on internal layer to be placed on the fusing point of material of the outermost capillary structure of described tube body of heat pipe.

2. the supporting construction of heat pipe multilayer capillary texture as claimed in claim 1 it is characterized in that the described material that is placed on the outermost capillary structure of described tube body of heat pipe is a phosphor bronze, and the described material that is placed on the capillary structure of internal layer is an oxygen-free copper.

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