A heat pipe with fast heat conduction

Abstract

The utility model discloses a quick heat conduction's radiating pipe, including the pipe body, the pipe body is by evaporative section, transition section, condensation section is composed, the transition section is set up between evaporative section, condensation section, the inner wall of pipe body is attached with metal net, the inboard of metal net is provided with sintered layer, the sintered layer is by A grain size powder layer, B grain size powder layer, C grain size powder layer is composed, the metal net, sintered layer, screw groove composite structure designed in the utility model, sintered layer constructs high capillary force " adsorption net ", and the liquid state working medium is quickly adsorbed and vaporizes, and the variable pitch design of screw groove forms low resistance " flow guide channel ", makes steam flow rate promotion, reduces liquid state working medium backflow resistance, and the metal net fills the gap between sintered layer and screw groove, makes gas and liquid shunt more orderly, and lets " adsorption, flow guide, backflow " form closed loop, and quickly completes working medium circulation, realizes heat dissipation.

Description

Technical Field

[0001] This utility model belongs to the field of heat pipe technology, specifically relating to a heat dissipation pipe that conducts heat rapidly. Background Technology

[0002] A heat pipe is a component used for efficient heat conduction and dissipation. It consists of a shell, capillary structure, and working fluid. The shell is generally made of metal. After the interior is evacuated, a suitable amount of working fluid is injected. Based on the principle of phase change heat transfer, when the evaporation section of the heat pipe comes into contact with the heat source, the working fluid absorbs heat and vaporizes. The vapor flows to the condensation section under the action of pressure difference. In the condensation section, it cools down, releases heat, and re-liquefies. The liquid working fluid flows back to the evaporation section under the action of the capillary structure. This cycle repeats, achieving efficient heat dissipation.

[0003] Existing heat pipes have certain problems during use. The single capillary structure makes it difficult to balance capillary force and flow resistance. The sintered powder has high resistance and is prone to drying. The capillary force of the spiral groove is insufficient, making backflow difficult. They have poor resistance to gravity and posture adaptability. The circulation of the working fluid is hindered when the posture changes or there is no gravity. They also have insufficient structural stability and lifespan, and are prone to falling off, clogging, and high thermal resistance. Therefore, this utility model proposes a heat pipe with fast heat conduction. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation pipe that conducts heat quickly, in order to solve the problems mentioned in the background art, such as the difficulty in balancing capillary force and flow resistance due to a single capillary structure, poor resistance to gravity and posture adaptability, and insufficient structural stability and lifespan of the heat dissipation pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation pipe for rapid heat conduction, comprising a pipe body, the pipe body being composed of an evaporation section, a transition section, and a condensation section, the transition section being disposed between the evaporation section and the condensation section, a metal mesh being attached to the inner wall of the pipe body, a sintered layer being disposed on the inner side of the metal mesh, the sintered layer being composed of a powder layer of particle size A, a powder layer of particle size B, and a powder layer of particle size C, the powder layer of particle size B being disposed between the powder layers of particle size A and particle size C, a spiral groove being disposed on the inner side of the sintered layer, the spiral groove being composed of a spiral groove A, a spiral groove B, and a spiral groove C, the spiral groove A being formed on the surface of the powder layer of particle size A, the spiral groove B being formed on the surface of the powder layer of particle size B, and the spiral groove C being formed on the surface of the powder layer of particle size C.

[0006] Preferably, the pitch of the spiral groove C is greater than the pitch of the spiral groove B, and the pitch of the spiral groove B is greater than the pitch of the spiral groove A.

[0007] Preferably, the particle size of the C-size powder layer is larger than that of the B-size powder layer.

[0008] Preferably, the particle size of the B-size powder layer is larger than that of the A-size powder layer.

[0009] Preferably, the position of the evaporation section corresponds to the position of the A-sized powder layer and the position of the spiral groove A, and the position of the transition section corresponds to the position of the B-sized powder layer and the position of the spiral groove B.

[0010] Preferably, the position of the condensation zone corresponds to the position of the C-sized powder layer and the position of the spiral groove C.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The composite structure of metal mesh, sintered layer, and spiral groove designed in this utility model has a sintered layer that forms a high capillary force "adsorption mesh" to quickly adsorb and vaporize liquid working fluid. The variable pitch design of the spiral groove forms a low-resistance "guide channel", which increases the vapor flow rate and reduces the resistance to liquid working fluid return. The metal mesh fills the gap between the sintered layer and the spiral groove, making the gas-liquid separation more orderly and allowing "adsorption, guidance, and return" to form a closed loop, quickly completing the working fluid circulation and achieving heat dissipation. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0014] Fig. 2 This is a schematic diagram of the internal structure of the heat dissipation pipe of this utility model;

[0015] Fig. 3 This is a schematic cross-sectional view of the heat dissipation pipe of this utility model;

[0016] In the diagram: 1. Tube body; 11. Evaporation section; 12. Transition section; 13. Condensation section; 2. Metal mesh; 3. Sintered layer; 31. Powder layer with particle size A; 32. Powder layer with particle size B; 33. Powder layer with particle size C; 4. Spiral groove; 41. Spiral groove A; 42. Spiral groove B; 43. Spiral groove C. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figs. 1 to 3This utility model provides a technical solution: a heat dissipation pipe for rapid heat conduction, including a pipe body 1. The pipe body 1 is composed of an evaporation section 11, a transition section 12, and a condensation section 13. The transition section 12 is disposed between the evaporation section 11 and the condensation section 13. A metal mesh 2 is attached to the inner wall of the pipe body 1. The metal mesh 2 plays a role in enhancing capillary force, uniformly distributing the working fluid, and assisting heat conduction. A sintered layer 3 is disposed on the inner side of the metal mesh 2. The sintered layer 3 is composed of an A-size powder layer 31, a B-size powder layer 32, and a C-size powder layer 33. The sintered layer 3 achieves axial gradient capillary performance through powders of different particle sizes. The B-size powder layer 32 is disposed between the A-size powder layer 31 and the C-size powder layer 33. The A-size powder layer 31 uses 20-50μm particle size powder, corresponding to the evaporation section 11, and is used to provide high capillary force. The B-size powder layer 32 uses 50-100μm particle size powder. The powder with a particle size of 100-200 μm corresponds to the transition zone 12, achieving a smooth transition between capillary force and working fluid flow resistance. The C-particle size powder layer 33 uses 100-200 μm particle size powder, corresponding to the condensation zone 13, to reduce the working fluid reflux permeation resistance. A spiral groove 4 is provided on the inner side of the sintered layer 3. The spiral groove 4 consists of spiral groove A41, spiral groove B42, and spiral groove C43. The spiral groove 4 is used to construct a working fluid reflux channel. Spiral groove A41 is formed on the surface of the A-particle size powder layer 31, and the pitch of spiral groove A41 corresponding to the A-particle size powder layer 31 is 3-5 mm. Spiral groove B42 is formed on the surface of the B-particle size powder layer 32, corresponding to the B-particle size powder layer 32. The spiral groove B42 of the powder layer 32 has a pitch of 5-8 mm, and the spiral groove C43 is formed on the surface of the powder layer 33 with a particle size of C. The spiral groove C43 of the powder layer 33 with a pitch of 8-12 mm gradually increases along the direction from the evaporation section 11, the transition section 12 to the condensation section 13. The composite structure of metal mesh 2, sintered layer 3 and spiral groove 4 designed in this utility model, the sintered layer 3 constructs a high capillary force "adsorption mesh", which quickly adsorbs and vaporizes liquid working fluid. The variable pitch design of the spiral groove 4 forms a low-resistance "guide channel," which increases the steam flow rate and reduces the resistance to liquid working fluid recirculation. The metal mesh 2 fills the gap between the sintered layer 3 and the spiral groove 4, making the gas-liquid separation more orderly and allowing "adsorption, guidance, and recirculation" to form a closed loop, quickly completing the working fluid circulation and achieving heat dissipation. The pitch of the spiral groove C43 is larger than that of the spiral groove B42, and the pitch of the spiral groove B42 is larger than that of the spiral groove A41. The particle size of the C-sized powder layer 33 is larger than that of the B-sized powder layer 32, and the particle size of the B-sized powder layer 32 is larger than that of the A-sized powder layer 31. The position of the evaporation section 11 corresponds to the position of the A-sized powder layer 31 and the position of the spiral groove A41. The position of the transition section 12 corresponds to the position of the B-sized powder layer 32 and the position of the spiral groove B42. The position of the condensation section 13 corresponds to the position of the C-sized powder layer 33 and the position of the spiral groove C43.

[0019] Working principle and usage process of this utility model:

[0020] 1. First, clarify the functional zones and structural relationships of tube body 1. Tube body 1 consists of evaporation section 11, transition section 12, and condensation section 13, serving as the "channel carrier" for heat conduction. Metal mesh 2 is sandwiched between tube body 1 and sintered layer 3 to enhance capillary force, distribute the working fluid evenly, and assist in heat conduction. Sintered layer 3 consists of powder layer 31 with particle size A corresponding to evaporation section 11, powder layer 32 with particle size B corresponding to transition section 12, and powder layer 33 with particle size C corresponding to condensation section 13, providing capillary force to drive the circulation of the working fluid. Spiral groove 4 consists of spiral groove A41 corresponding to evaporation section 11, spiral groove B42 corresponding to transition section 12, and spiral groove C43 corresponding to condensation section 13, used to construct a "directional channel" for working fluid reflux.

[0021] 2. Working process: When the evaporation section 11 of the tube body 1 is in contact with the heat source, the heat is quickly transferred to the metal mesh 2 through the tube body 1. The metal mesh 2 conducts heat efficiently, which drives the flow of the working fluid. The A-particle size powder layer 31 of the evaporation section 11, with the high capillary force formed by the fine powder, quickly adsorbs the working fluid and vaporizes it, absorbing heat and reducing the temperature.

[0022] After vaporization, the working fluid steam is guided by the spiral groove A41 and flows at high speed to the condensation section 13. In the transition section 12, the spiral groove B42 and the B-size powder layer 32 work together to stabilize the steam transmission, assist the initial return of liquid, and ensure the orderly flow of gas and liquid. After reaching the condensation section 13, the steam liquefies and releases heat when it encounters cold, and the heat is dissipated to the outside through the tube.

[0023] After liquefaction, the working fluid is rapidly refluxed to the evaporation section 11 under the action of the C-sized powder layer 33 and the spiral groove C43. The metal mesh 2 enhances the structural stability and uniform distribution of the working fluid throughout the process, allowing the heat dissipation tube to quickly complete one cycle, causing the temperature to drop in seconds and achieving rapid heat dissipation.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation pipe for rapid heat conduction, comprising a pipe body (1), characterized in that: The tube body (1) is composed of an evaporation section (11), a transition section (12), and a condensation section (13). The transition section (12) is located between the evaporation section (11) and the condensation section (13). A metal mesh (2) is attached to the inner wall of the tube body (1). A sintered layer (3) is provided on the inner side of the metal mesh (2). The sintered layer (3) is composed of an A-size powder layer (31), a B-size powder layer (32), and a C-size powder layer (33). The B-size powder layer (31) is composed of an A-size powder layer (31), a B-size powder layer (32), and a C-size powder layer (33). 2) A spiral groove (4) is provided on the inner side of the sintered layer (3) between the A-size powder layer (31) and the C-size powder layer (33). The spiral groove (4) is composed of spiral groove A (41), spiral groove B (42) and spiral groove C (43). Spiral groove A (41) is opened on the surface of the A-size powder layer (31), spiral groove B (42) is opened on the surface of the B-size powder layer (32), and spiral groove C (43) is opened on the surface of the C-size powder layer (33).

2. The heat dissipation pipe for rapid heat conduction according to claim 1, characterized in that: The pitch of the spiral groove C (43) is greater than that of the spiral groove B (42), and the pitch of the spiral groove B (42) is greater than that of the spiral groove A (41).

3. The heat dissipation pipe for rapid heat conduction according to claim 1, characterized in that: The particle size of the C-size powder layer (33) is larger than that of the B-size powder layer (32).

4. The heat dissipation pipe for rapid heat conduction according to claim 1, characterized in that: The particle size of the B-size powder layer (32) is larger than that of the A-size powder layer (31).

5. A heat dissipation pipe for rapid heat conduction according to claim 1, characterized in that: The position of the evaporation section (11) corresponds to the position of the A-sized powder layer (31) and the position of the spiral groove A (41), and the position of the transition section (12) corresponds to the position of the B-sized powder layer (32) and the position of the spiral groove B (42).

6. A heat dissipation pipe for rapid heat conduction according to claim 1, characterized in that: The position of the condensation section (13) corresponds to the position of the C-particle size powder layer (33) and the position of the spiral groove C (43).

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