CN219494950U - Powder adding structure for internal net of heat pipe - Google Patents

Abstract

The utility model discloses a powder adding structure of an internal network of a heat pipe, which relates to the technical field of heat radiation and comprises a heat radiation fan, wherein a heat radiation plate is fixedly arranged on one side of the heat radiation fan, a heat conduction pipe is fixedly arranged on one side of the heat radiation plate, a heat radiation head is fixedly arranged at one end of the heat conduction pipe, the surface of a hollow thin copper sheet is abutted against the inner wall of the heat conduction pipe, a hot slag layer is fixedly arranged on the inner wall of the hollow thin copper sheet, and a metal net layer is fixedly arranged on the inner wall of the hot slag layer; according to the heat pipe inner net powder adding structure, copper powder is filled in gaps between the inner wall of the hollow thin copper sheet and the metal net layer, so that a spongy inner wall structure formed after copper powder is heated and cooled is attached to the inner wall of the hollow Bao Tongpian and the metal net layer, gaps among braided metal wires and the spongy powder adding structure are formed, a woven net structure is added to strengthen a capillary structure, suction force to working liquid is increased, liquid backflow in the pipe is accelerated to a certain extent, and heat dissipation performance is improved.

Description

Powder adding structure for internal net of heat pipe

Technical Field

The utility model relates to a heat radiation technology, in particular to a powder adding structure of an internal network of a heat pipe.

Background

The heat pipe is generally composed of a pipe shell, a liquid suction core and an end cover, wherein the pipe is pumped into negative pressure and then filled with a proper amount of working liquid, so that the liquid suction core capillary porous material clung to the inner wall of the pipe is filled with the liquid and then sealed, and the heat dissipation part and the heat-generating element are communicated, so that the effect of leading out the heat-generating element to the outside of the heat-generating element during working is realized, and the normal operation of equipment such as a notebook computer is ensured.

However, the conventional heat conducting tube can increase the powder filling thickness for enhancing the capillary structure, but the increase of the powder filling thickness is unfavorable for reasonably matching with the thickness of the heat conducting tube, and causes a certain obstruction for deformability of the heat conducting tube during installation.

Disclosure of Invention

The utility model aims to provide a powder adding structure of an internal network of a heat pipe so as to solve the defects in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: the heat pipe internal network adds powder structure, including the cooling fan, cooling fan one side fixed mounting has the heating panel, heating panel one side fixed mounting has the heat pipe, heat pipe one end fixed mounting has the heat dissipation head, hollow copper sheet surface and heat pipe inner wall butt, hot slag layer fixed mounting is at hollow copper sheet inner wall, metal mesh layer fixed mounting is at hot slag layer inner wall.

Further, the inner wall of the heat conduction pipe is provided with a plurality of grooves in an annular array shape.

Further, a diversion trench is formed between the outer side of the hollow Bao Tongpian and the plurality of grooves.

Further, the hot melt slag layer is of a spongy structure formed by sintering copper powder.

Further, the metal mesh layer is a multi-mesh structure woven by metal wires.

Further, the heat conducting pipe is filled and sealed with working liquid under a negative pressure state.

Compared with the prior art, the heat pipe internal net powder adding structure provided by the utility model has the following beneficial effects:

1. according to the powder adding structure of the heat pipe inner network, the diversion trenches are formed between the outer side of the hollow thin copper sheet and the grooves and are used for generating certain suction force on working liquid so as to accelerate the rapid backflow of the working liquid in the heat pipe.

2. According to the powder adding structure of the inner net of the heat pipe, the inner wall of the hollow Bao Tongpian is filled with the multiple net-shaped structures woven by metal wires through the metal net layers, copper powder is filled in gaps between the inner wall of the hollow copper sheet and the metal net layers, and then the heat treatment is carried out, so that the edges of copper powder particles can be melted firstly and then adhered to copper powder around the edges, the spongy inner wall structure formed by the copper powder particles is adhered to the inner wall of the hollow Bao Tongpian and the metal net layers, and the gaps between the woven metal wires and the spongy powder adding structure are formed, the woven net structure is added to strengthen the capillary structure, suction force to working liquid is increased, liquid backflow in the pipe is accelerated to a certain extent, the heat dissipation performance is improved, and the problem that the deformability of the heat pipe is reduced due to the large powder filling thickness is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a perspective view of an overall structure provided by an embodiment of the present utility model;

FIG. 2 is a cross-sectional perspective view of a heat pipe according to an embodiment of the present utility model;

fig. 3 is a longitudinal sectional perspective view of a heat pipe according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a heat radiation fan; 2. a heat dissipation plate; 3. a heat conduction pipe; 31. a groove; 4. a heat dissipating head; 5. a hollow Bao Tongpian; 6. a hot melt slag layer; 7. a metal mesh layer.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

Embodiment one:

referring to fig. 1-3, the powder adding structure of the inner network of the heat pipe comprises a heat radiation fan 1, a heat radiation plate 2 is fixedly arranged on one side of the heat radiation fan 1, a heat conduction pipe 3 is fixedly arranged on one side of the heat radiation plate 2, a heat radiation head 4 is fixedly arranged at one end of the heat conduction pipe 3, a plurality of grooves 31 are formed in the inner wall of the heat conduction pipe 3 in a ring-shaped array, working liquid is filled and sealed in the heat conduction pipe 3 in a negative pressure state, the working liquid is a refrigeration medium, the powder adding structure comprises pure water, the surface of a hollow thin copper sheet 5 is abutted with the inner wall of the heat conduction pipe 3, a diversion trench is formed between the outer side of the hollow thin copper sheet 5 and the grooves 31 and used for generating a certain suction force to the working liquid, the rapid backflow of the working liquid in the pipe is accelerated, a hot slag layer 6 is fixedly arranged on the inner wall of the hollow thin copper sheet 5, the hot slag layer 6 is in a spongy structure formed by sintering copper powder, then heating copper powder to a certain temperature, before the copper powder is not completely melted, the edges of copper powder particles are melted first, the copper powder around the edges is adhered, a spongy inner wall structure is formed after cooling, a metal net layer 7 is fixedly arranged on the inner wall of a hot slag layer 6, the metal net layer 7 is a multiple net structure formed by braiding metal wires, the copper powder can be filled into the inner wall of a hollow copper sheet 5 before the copper powder is added, then copper powder is filled into gaps between the inner wall of the hollow copper sheet 5 and the metal net layer 7, then heating treatment is carried out, the edges of the copper powder particles are adhered to the copper powder around the edges after the copper powder particles are melted first, gaps exist between the spongy inner wall structure formed by the copper powder particles and the inner wall of the hollow copper sheet 5 and the metal net layer 7, a certain suction force is generated on working liquid, accelerating the liquid backflow in the pipe to a certain extent.

Working principle: when the heat dissipation device is used, firstly, the heat conduction silicone grease is coated on the heating element, then the heat dissipation head 4 is fixedly arranged on the heating element, then the integrated heat dissipation head 4, the heat conduction pipe 3 and the heat dissipation fan 1 are arranged in the device, the heat dissipation fan 1 is started to dissipate heat of the heating element in a working state, and when the heat dissipation device is used, the working liquid in the heat conduction pipe 3 rapidly transfers heat of the heating element to the outside of a heat source through the heat transfer principle and the rapid heat transfer property of a refrigerating medium, and the heat of the heating element is dissipated through the heat dissipation fan 1 and a heat dissipation plate on one side of the heat dissipation fan 1.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (6)

1. The utility model provides a heat pipe intranet adds powder structure, includes radiator fan (1), radiator fan (1) one side fixed mounting has heating panel (2), heating panel (2) one side fixed mounting has heat pipe (3), heat pipe (3) one end fixed mounting has heat dissipation head (4), its characterized in that:

the surface of the hollow Bao Tongpian (5) is abutted with the inner wall of the heat conduction pipe (3);

the hot slag layer (6), the said hot slag layer (6) is fixedly installed in the inner wall of the hollow copper sheet (5);

the metal net layer (7), metal net layer (7) fixed mounting is in hot slag layer (6) inner wall.

2. The powder adding structure of the heat pipe inner network according to claim 1, wherein the inner wall of the heat pipe (3) is provided with a plurality of grooves (31) in a circular array shape.

3. The powder adding structure of the heat pipe inner network according to claim 1, wherein diversion trenches are formed between the outer side of the hollow Bao Tongpian (5) and the plurality of grooves (31).

4. The heat pipe inner net powdering structure according to claim 1, wherein the hot-melt slag layer (6) is a sponge-like structure formed by sintering copper powder.

5. The powder adding structure of the heat pipe inner net according to claim 1, wherein the metal net layer (7) is a multi-net structure woven by metal wires.

6. The heat pipe inner net powdering structure according to claim 1, wherein the heat pipe (3) is filled with the working liquid in a negative pressure state.