CN216745630U

CN216745630U - Connecting structure of metal vacuum heat pipe

Info

Publication number: CN216745630U
Application number: CN202123438089.4U
Authority: CN
Inventors: 董志刚; 董舒
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-14
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to the technical field of metal vacuum super-strong heat pipe application, in particular to a connecting structure of a metal vacuum heat pipe. The heat pipe comprises three sections, wherein the sections at two ends are respectively a condensation section and an evaporation section, the middle section is arranged between the condensation section and the evaporation section, and a connecting sheet is fixed on the middle section. Set up the connection piece at the interlude of heat pipe (heat insulation section), the connection piece can be connected with other parts, makes the evaporation zone and the condensation segment of heat pipe be arranged in respectively treating heat dissipation environment and external environment, plays very outstanding heat conduction effect.

Description

Connecting structure of metal vacuum heat pipe

Technical Field

The utility model relates to the technical field of metal vacuum super-strong heat pipe application, in particular to a connecting structure of a metal vacuum heat pipe.

Background

The vacuum super strong heat pipe technology is one of the most advanced application technologies in the heat exchange technology of American military industry and spacecrafts in the seventies of the twentieth century. After the vacuum super-strong super-heat-conduction theory is introduced into China, due to the advancement of the vacuum super-strong super-heat-conduction theory and the inconvenience of installation and use, the vacuum super-strong super-heat-conduction theory cannot be rapidly and widely popularized and used in the industrial and civil industries at home.

The vacuum super-strong heat pipe is widely applied to the industries of aerospace, military industry and the like, and since the vacuum super-strong heat pipe is introduced into the radiator manufacturing industry, the design idea of the traditional radiator is changed for people, the single heat radiation mode that a better heat radiation effect is obtained by only depending on a high air volume motor is eliminated, the heat pipe technology is adopted, the heat radiator can obtain a satisfactory effect even if the heat radiator adopts a low-rotating-speed and low-air volume motor, the noise problem which puzzles air cooling heat radiation is well solved, and a new place in the heat radiation industry is opened up. Is often found on cpu heat sink of computer, especially notebook computer.

A typical heat pipe consists of a pipe casing, a wick and end caps. The interior of the heat pipe is pumped into a negative pressure state and filled with proper liquid, and the liquid has a low boiling point and is easy to volatilize. The tube wall has a wick that is constructed of a capillary porous material. When one end of the heat pipe is heated, the liquid in the capillary tube is quickly vaporized, the vapor flows to the other end under the power of heat diffusion, the vapor is condensed at the cold end to release heat, and the liquid flows back to the evaporation end along the porous material by the capillary action, so that the circulation is not stopped until the temperatures of the two ends of the heat pipe are equal (at the moment, the heat diffusion of the vapor is stopped). This cycle is rapid and heat can be conducted away from the heat source.

Because the wall of the heat pipe is thin and the inside of the heat pipe is in a vacuum state, the heat pipe needs to be lightly handled during installation, and the heat pipe is extremely careful and can be cracked once being forcefully violent, so that the heat pipe cannot be installed in a welding mode.

The common combined use mode of the existing heat pipes is that the condensation end of the heat pipe is pressed on the heat dissipation substrate through the mounting block, the heat dissipation substrate has the functions of transferring heat and being connected with other components, the evaporation end is arranged in the environment needing heat dissipation to absorb heat and transfers the heat to the condensation end, and the condensation end dissipates the heat to the external environment through the heat dissipation substrate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a connecting structure of a metal vacuum heat pipe, which aims to solve the problem of poor heat conduction capability of a heat pipe structure in the prior art.

The object of the utility model is achieved in the following way: the utility model provides a connection structure of metal vacuum heat pipe, includes the heat pipe, and this heat pipe includes the three-section, and the section at both ends is condensation zone and evaporation zone respectively, is called the interlude between condensation zone and the evaporation zone, fixes the connection piece on the interlude.

Furthermore, the fixed connecting sheet on the interlude sets up the hole with interlude complex for the connecting sheet, and the heat pipe interlude is worn to weld in the hole and is fixed.

Furthermore, the fixed connection piece is fixed on the middle section and is welded by the connection piece clinging to the pipe wall, the connection piece is divided into a welding section and a connection section, the welding section clings to the vacuum pipe wall for welding, and the connection section is bent for connection.

Furthermore, the connecting sheet is fixed on the middle section, namely the connecting sheet is a connecting rod, and one end of the rod is attached and welded with the middle section of the heat pipe.

Furthermore, the outer wall of at least one section of the condensation section and the evaporation section is provided with a cooling fin group.

Further, at least two heat pipes are connected into a group through a connecting sheet.

Compared with the prior art, the connecting piece is arranged at the middle section (heat insulation section) of the heat pipe and can be connected with other parts, so that the evaporation section and the condensation section of the heat pipe are respectively positioned in the environment to be radiated and the external environment, and a very excellent heat conduction effect is achieved.

Drawings

FIG. 1 is a schematic diagram of a conventional heat pipe;

FIG. 2 is a front view and a top view of the first embodiment of the present invention;

FIG. 3 is a front view and a top view of a second embodiment of the present invention;

FIG. 4 is a front view and a top view of a third embodiment of the present invention;

FIG. 5 is a schematic structural view of several connection cases of the straight heat pipe and the connecting sheet;

FIG. 6 is a schematic structural diagram of several connection situations of the deformed heat pipe and the connecting sheet;

FIG. 7 is a schematic structural diagram of a heat pipe bank of the same diameter;

FIG. 8 is a schematic structural diagram of a variable diameter heat pipe bank;

FIG. 9 is a schematic view of a heat pipe assembly mounted to a device.

Wherein, the heat pipe 1; a condensing section 11; an intermediate section 12; an evaporation section 13; reducing 14; a connecting sheet 2; fin group 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the utility model and in order to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model.

As shown in fig. 1-9, a connection structure of a metal vacuum heat conduction pipe comprises a heat pipe 1, the heat pipe 1 comprises three sections, the sections at two ends are a condensation section 11 and an evaporation section 13 respectively, a middle section 12 is called between the condensation section 11 and the evaporation section 13, and a connecting piece 2 is fixed on the middle section 12.

Through setting up connection piece 2 at heat pipe 1's interlude 12, connection piece 2 can be connected with other part erection, as shown in fig. 9, and the connected mode can be welding, compress tightly the connection or pass through bolt fastening, makes heat pipe 1's evaporation zone 13 and condensation segment 11 be arranged in respectively treating heat dissipation environment and external environment, and every section fully contacts with the environment of locating, plays very outstanding heat conduction effect.

As shown in fig. 2, the connecting piece 2 may be fixed to the intermediate section 12 by providing a hole in the connecting piece 2, the size of the hole being matched with the size of the intermediate section 12 of the heat pipe 1, and welding the intermediate section 12 of the heat pipe 1 after the hole is inserted therein.

As shown in fig. 3, the connecting sheet 2 may be fixed on the middle section 12 by welding the connecting sheet 2 against the pipe wall, the connecting sheet 2 is divided into a welding section and a connecting section, the welding section is welded against the pipe wall of the vacuum pipe, the connecting section is bent to connect, preferably, the connecting sheet 2 is a U-shaped plate, two sides of the U are welded against the middle section 12, and the bottom side of the U is the connecting section.

As shown in fig. 4, the connecting piece 2 may be a connecting rod fixed on the intermediate section 12, and one end of the rod is welded to the intermediate section 12 of the heat pipe 1.

It should be noted that, because the wall of the heat pipe 1 is thin and the inside is negative pressure, the heat pipe will break under the high temperature condition generated by welding, so the heat pipe 1 and the connecting sheet 2 cannot be fixed by direct welding, but should be welded with the connecting sheet 2 when the heat pipe 1 is still an unprocessed empty pipe, and after the welding is completed, a low boiling point liquid is added and the negative pressure is pumped.

The outer wall of at least one of the condensation section 11 and the evaporation section 13 is provided with a fin group 3, the heat conduction capability of the section can be increased by increasing the contact area with the environment, and whether the fin group 3 needs to be added depends on the actual use environment.

As shown in fig. 5, the structural schematic diagrams of several connection situations of the straight heat pipe 1 and the connecting sheet 2 are respectively a, the straight heat pipe, and the connecting sheet 2 is arranged in the middle section of the heat pipe 1; b. the diameter-variable heat pipe is arranged, and the connecting sheet 2 is arranged in the middle section of the heat pipe 1; c. the middle sections of the straight heat pipes and the heat pipes 1 are provided with connecting sheets 2, and the evaporation section 13 is provided with a cooling fin group 3; d. the straight reducing pipe and the middle section of the heat pipe 1 are provided with a connecting sheet 2, and the condensing section 11 is provided with a radiating fin group 3.

As shown in fig. 6, the structural schematic diagrams of several connection situations of the special-shaped heat pipe 1 and the connecting sheet 2 are respectively a, a direction-changing heat pipe, the connecting sheet 2 is vertically arranged, and the condensing section 11 is provided with a fin group 3; b. the diversion heat pipe and the connecting disc 2 are horizontally arranged, and the condensing section 11 is provided with a cooling fin group 3; c. The diameter-variable heat pipe is provided with a connecting disc 2, and two ends of the heat pipe 1 are provided with radiating fin groups 3; d. the heat pipe is deformed, a connecting disc 2 is arranged, and the two ends of the heat pipe 1 are provided with radiating fin groups 3.

At least two heat pipes 1 are connected by a connecting piece 2 into a group, preferably, a group comprises 8 heat pipes 1.

As shown in fig. 7, the structure of the heat pipe row with the same diameter is schematically shown; as shown in fig. 8, the structure of the variable diameter heat pipe bank is schematically illustrated.

In practical application, one group of structures comprises several heat pipes 1, and several groups are arranged on one device according to actual heat dissipation requirements.

Under operating condition, connection piece 2 part at both ends is fixed in on the equipment about a set of structure, fixed mode can be welding, compress tightly the connection or pass through the bolt fastening, and make the evaporation zone 13 of heat pipe 1 expose in the radiating environment of needs in the equipment, condensation segment 11 exposes in the external environment, because every section fully contacts with the environment of locating, make the radiating function good, if still unsatisfied demand, if heat absorption efficiency is poor, add fin group 3 at evaporation zone 13, if heat release efficiency is poor, add fin group 3 at condensation segment 11, fin group 3's mounting means is similar to connection piece 2's connected mode.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a connection structure of metal vacuum heat pipe, includes the heat pipe, and this heat pipe includes the three-section, and the section at both ends is respectively for condensation segment and evaporation zone, is called the interlude between condensation segment and the evaporation zone, its characterized in that: and the connecting sheet is fixed on the middle section.

2. A connecting structure of a metal vacuum heat pipe according to claim 1, wherein: the fixed connecting sheet on the middle section is a hole which is arranged on the connecting sheet and matched with the middle section, and the middle section of the heat pipe penetrates through the hole and is welded and fixed.

3. A connecting structure of a metal vacuum heat pipe according to claim 1, wherein: the middle section is fixedly connected with the connecting piece which is welded tightly to the pipe wall, the connecting piece is divided into a welding section and a connecting section, the welding section is welded tightly to the vacuum pipe wall, and the connecting section is bent to be connected.

4. A connecting structure of a metal vacuum heat pipe according to claim 1, wherein: the connecting piece is fixed on the middle section, namely the connecting piece is a connecting rod, and one end of the connecting rod is attached and welded with the middle section of the heat pipe.

5. A connecting structure of a metal vacuum heat pipe according to any one of claims 2 to 4, wherein: and the outer wall of at least one section of the condensation section and the evaporation section is provided with a cooling fin group.

6. A connecting structure of a metal vacuum heat pipe according to claim 5, wherein: the at least two heat pipes are connected into a group through a connecting sheet.