Heat pipe with different central rod diameters

Abstract

The utility model discloses a heat pipe with different central rod diameters, which comprises a copper pipe, a fixed column is fixedly connected to the lower end in the copper pipe, a central rod is arranged in the copper pipe, a positioning groove is arranged at the bottom of the central rod, a separation cylinder is arranged on the outer side of the central rod, a copper powder layer is filled between the central rod and the separation cylinder, and the copper powder layer is arranged in the copper pipe. The copper powder layer has at least two different thicknesses, the center rod is composed of a condensation section, a heat insulation section and an evaporation section, and the condensation section, the heat insulation section and the evaporation section are sequentially arranged in the center rod from top to bottom, so that the thicknesses of capillary structures of all sections of the heat pipe are different when the heat pipe is machined into different diameter sizes; when the center rods with different diameters are inserted into the copper pipe, a proper amount of copper powder is filled between the center rods and the separation barrel, then the copper powder fills the gap through vibration, the copper powder and the copper pipe are sintered together through high-temperature copper powder, copper powder layers with different thicknesses are shown in the heat pipe, and therefore the performance of the heat pipe is optimized and improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of communications, and in particular relates to a heat pipe with different central rod diameters. Background Art

[0002] A heat pipe is a passive heat transfer element with extremely high heat transfer efficiency. It relies on the phase change of the working substance to transfer heat. The basic components of a heat pipe include the pipe wall, the internal working substance, and the closed end caps at both ends. The pipe wall is usually insulated to reduce the loss of heat through the pipe wall. The working substance circulates in the pipe and carries heat through phase change (such as liquid-gas phase change).

[0003] Currently used in various electronic heat dissipation, the diameter of the center rod of a heat pipe is relatively simple in structure, the diameter of the center rod of the heat pipe is one, the thickness of the sintered powder layer inside the heat pipe is single, the capillary is consistent, and the efficiency is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a heat pipe with different center rod diameters to solve the problem raised in the above background technology that the center rod diameter of a heat pipe currently used in various electronic heat dissipation is relatively simple in structure, the center rod diameter of the heat pipe is one, the thickness of the sintered powder layer inside the heat pipe is single, the capillary is consistent, and the efficiency is low.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat pipe with different center rod diameters, comprising a copper tube, the lower end of the inside of the copper tube is fixedly connected to a fixing column, a center rod is arranged inside the copper tube, a positioning groove is opened at the bottom of the center rod, a separation cylinder is arranged on the outside of the center rod, a copper powder layer is filled between the center rod and the separation cylinder, the copper powder layer has at least two different thicknesses, and the center rod consists of a condensation section, a heat insulation section and an evaporation section.

[0006] Preferably, an outer side of the fixing column is provided with an external thread, and an inner side of the positioning groove is provided with an internal thread.

[0007] Preferably, the center rod and the positioning groove are threadably connected to the copper tube via a fixing column.

[0008] Preferably, the condensation section, the insulation section and the evaporation section can each be a cylinder with equal diameter.

[0009] Preferably, the central rod is a metal rod or a non-metal rod made of high temperature resistant material.

[0010] Preferably, the filling amount of the copper powder layer is adapted to the outer diameter of the central rod, and the copper powder layer has three layers of different thicknesses.

[0011] Preferably, the diameter of the condensation section is equal to the diameter of the evaporation section, and the diameters of the condensation section and the evaporation section are both smaller than the diameter of the insulation section.

[0012] Compared with the prior art, the utility model provides a heat pipe with different center rod diameters, which has the following beneficial effects:

[0013] 1. The utility model provides a heat pipe with different center rod diameters. When in use, the condensation section, the insulation section, and the evaporation section are sequentially arranged in the center rod from top to bottom, so that the capillary structure thickness of each section of the heat pipe is different when the heat pipe is processed with different diameters. When center rods of different diameters are inserted into the copper tube, a proper amount of copper powder is filled between the center rod and the separation tube, and then the copper powder is vibrated to fill the gap. The copper powder and the copper tube are sintered together at high temperature, and the inside of the heat pipe presents copper powder layers of different thicknesses, thereby optimizing and improving the performance of the heat pipe;

[0014] 2. The utility model provides a heat pipe with different center rod diameters. The interior of the heat pipe is filled with copper powder in sections, so that the thickness of the copper powder inside the copper pipe and the center rod have a step difference, which can meet the problems of thermal resistance and high heat dissipation power. The fixed columns and positioning grooves can stably fix the copper pipe and the center rod to avoid the possibility of falling off.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the axial structure of one side of a heat pipe with different center rod diameters proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of a top view structure of a heat pipe with different center rod diameters proposed by the utility model;

[0019] Figure 3 A schematic diagram of the central rod structure of a heat pipe with different central rod diameters proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the condensing section structure of a heat pipe with different center rod diameters proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of a separation sleeve structure of heat pipes with different center rod diameters proposed by the utility model;

[0022] Figure 6This is a schematic cross-sectional view of a heat pipe with different center rod diameters proposed by the utility model;

[0023] In the figure: copper tube 1, fixing column 2, center rod 3, positioning groove 4, separation cylinder 5, copper powder layer 6, condensation section 7, insulation section 8, evaporation section 9. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6 The utility model provides a technical solution: a heat pipe with different center rod diameters, comprising a copper tube 1, a fixing column 2 being fixedly connected to the lower end of the copper tube 1, a center rod 3 being arranged inside the copper tube 1, a positioning groove 4 being opened at the bottom of the center rod 3, a separation tube 5 being arranged outside the center rod 3, a copper powder layer 6 being filled between the center rod 3 and the separation tube 5, and the copper powder layer 6 having at least two different thicknesses, the center rod 3 being composed of a condensation section 7, a heat insulation section 8 and an evaporation section 9. By sequentially arranging the condensation section 7, the heat insulation section 8 and the evaporation section 9 from top to bottom in the center rod 3, the capillary structure thickness of each section of the heat pipe can be different when the heat pipe is processed with different diameters. When center rods 3 of different diameters are inserted into the copper tube 1, an appropriate amount of copper powder is filled between the center rod 3 and the separation tube 5, and then the copper powder is vibrated to fill the gap. After the high-temperature copper powder and the copper tube are sintered together, the inside of the heat pipe presents copper powder layers of different thicknesses, thereby optimizing and improving the performance of the heat pipe.

[0026] In the present invention, preferably, the outer side of the fixing column 2 is provided with an external thread, and the inner side of the positioning groove 4 is provided with an internal thread.

[0027] In the utility model, preferably, the center rod 3 and the positioning groove 4 are threadedly connected to the copper tube 1 through the fixing column 2.

[0028] In the present invention, preferably, the condensation section 7, the insulation section 8 and the evaporation section 9 can each be a column with equal diameter, such as a cylinder, a prism, etc.

[0029] In the present invention, preferably, the central rod 3 is a metal rod or a non-metal rod made of high temperature resistant material.

[0030] In the present invention, preferably, the filling amount of the copper powder layer 6 is adapted to the outer diameter of the center rod 3, and the copper powder layer 6 has three layers of different thicknesses.

[0031] In the present invention, preferably, the diameter of the condensation section 7 is equal to the diameter of the evaporation section 9 , and the diameters of the condensation section 7 and the evaporation section 9 are both smaller than the diameter of the insulation section 8 .

[0032] The working principle and use process of the utility model are as follows: when in use, based on capillary action and heat conduction, the main body of the heat pipe is a copper tube 1, and a fixing column 2 is fixedly connected to the lower end inside. The outer side of the fixing column 2 is provided with an external thread, and the inner side of the positioning groove 4 is provided with an internal thread. The threaded connection ensures the stable combination of the center rod 3 and the copper tube 1. The center rod 3 is the core part of the heat pipe. A positioning groove 4 is provided inside it, and a condensation section 7, an insulation section 8 and an evaporation section 9 are provided at the bottom. These three sections of capillary structure are arranged in sequence from top to bottom, and each section has a different thickness, which can be a column of equal diameter, such as a cylinder, a prism, etc. A copper powder layer 6 is filled between the center rod 3 and the separation tube 5. The copper powder layer 6 has at least two different thicknesses. The filling volume is adapted to the outer diameter of the center rod 3, usually three layers of copper powder with different thicknesses. When the center rod 3 with different diameters is inserted into the copper tube 1, the copper powder between the center rod 3 and the separation tube 5 is filled with vibration. After high-temperature treatment, the copper powder and the copper tube are sintered together to form copper powder layers with different thicknesses. This process optimizes the performance of the heat pipe. The diameters of the condensation section 7 and the evaporation section 9 are equal and both are smaller than the diameter of the insulation section 8. This design allows the thickness of each capillary structure to be different when the heat pipe is processed in different diameter sizes, thereby adapting to different heat conduction requirements. Through the above design, the internal structure of the heat pipe can be adjusted as needed to optimize its performance and improve heat conduction efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat pipe with different center rod diameters, comprising a copper tube (1), characterized in that: A fixing column (2) is fixedly connected to the lower end of the copper tube (1), a center rod (3) is arranged inside the copper tube (1), a positioning groove (4) is provided at the bottom of the center rod (3), a separation cylinder (5) is arranged outside the center rod (3), a copper powder layer (6) is filled between the center rod (3) and the separation cylinder (5), and the copper powder layer (6) has at least two different thicknesses, and the center rod (3) consists of a condensation section (7), a heat insulation section (8) and an evaporation section (9).

2. The heat pipe with different center rod diameters according to claim 1, characterized in that: The outer side of the fixing column (2) is provided with an external thread, and the inner side of the positioning groove (4) is provided with an internal thread.

3. The heat pipe with different center rod diameters according to claim 1, characterized in that: The central rod (3) and the positioning groove (4) are threadedly connected to the copper tube (1) via a fixing column (2).

4. The heat pipe with different center rod diameters according to claim 1, characterized in that: The condensation section (7), the insulation section (8) and the evaporation section (9) can each be a cylinder with the same diameter.

5. The heat pipe with different center rod diameters according to claim 1, characterized in that: The central rod (3) is a metal rod or a non-metal rod made of high temperature resistant material.

6. The heat pipe with different center rod diameters according to claim 1, characterized in that: The filling amount of the copper powder layer (6) is adapted to the outer diameter of the central rod (3), and the copper powder layer (6) has three layers with different thicknesses.

7. The heat pipe with different center rod diameters according to claim 1, characterized in that: The diameter of the condensation section (7) is equal to the diameter of the evaporation section (9), and the diameters of the condensation section (7) and the evaporation section (9) are both smaller than the diameter of the insulation section (8).

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