Special-shaped braided wire forming process for heat pipe

Abstract

The application discloses a special-shaped braided wire forming process for a heat pipe, and specifically comprises the following steps: forming grooves on the inner side wall of a circular copper pipe in a spinning manner, so as to form separation protrusions between the grooves and the grooves; the circular copper pipe can be broken at the bottom of the grooves in a disassembling manner, so as to form a plurality of special-shaped braided wires with arc-shaped bottoms; and finally, the special-shaped braided wires are cut in a cutting manner, so as to form a plurality of special-shaped braided wires with required lengths.

Description

Technical Field

[0001] This invention relates to the field of heat pipes, and in particular to a process for forming irregularly shaped braided wires for heat pipes. Background Technology

[0002] As electronic products become increasingly advanced, with more sophisticated manufacturing processes, smaller sizes, and higher power consumption, the heat generated by these products is increasing. This necessitates sufficiently small heat dissipation structures with high heat dissipation efficiency. Currently, to improve heat dissipation efficiency, capillary structures with good thermal conductivity are often added to heat pipes and vapor chambers to enhance thermal conductivity and thus improve heat dissipation efficiency.

[0003] Existing capillary structures include those formed by sintering copper powder and those formed by using braided wires, as detailed in patent CN216592928U. In braided wire capillary structures, heat conduction occurs not through the braided wires themselves, but through the outer wall of the braided wires. Existing braided wires have a circular cross-section with a radius of approximately 0.05 mm. Since a circle has the smallest outer diameter for a given cross-sectional area, using irregularly shaped braided wires can increase the outer wall area of ​​the wires within the same volume, thereby improving the capillary effect within that volume and increasing the amount of capillary fluid passing through per unit time, thus enhancing the heat pipe's thermal conductivity.

[0004] In current production methods, braided yarn is mainly produced through drawing. However, due to the small radius of the braided yarn, the yield of other production methods is relatively low, except for round yarn which can guarantee a certain yield rate. Therefore, a production method for irregularly shaped braided yarn with a high yield rate is needed. Summary of the Invention

[0005] The main objective of this invention is to provide a process for producing heat pipe shaped braided wire by spinning a thin-walled grooved tube and then breaking the grooved tube at the groove.

[0006] This invention proposes a process for forming irregularly shaped braided wire for heat pipes, which forms grooves on the inner wall of a circular copper tube by spinning, thereby forming separating protrusions between the grooves;

[0007] The circular copper tube is broken at the bottom of the trench by disassembly, forming multiple irregularly shaped braided wires with arc-shaped bottoms.

[0008] The irregularly shaped braided thread is cut by cutting to form multiple irregularly shaped braided threads of the required length.

[0009] Preferably, the groove cross-section is V-shaped.

[0010] Preferably, the thickness between the bottom of the inner side of the trench and the outer side of the copper tube is 0.03-0.04 mm.

[0011] Preferably, the cross-section of the irregularly shaped braided thread is hexagonal, and the top of the irregularly shaped braided thread is an arc surface.

[0012] Preferably, the cross-section of the irregularly shaped braided thread is pentagonal, and the top of the irregularly shaped braided thread is conical.

[0013] The beneficial effects of the heat pipe profiled braiding wire forming process of the present invention are as follows:

[0014] 1. Compared with the existing technology of producing braided wire by drawing, this patent can produce smaller irregularly shaped braided wire, thereby effectively increasing the outer wall area of ​​the braided wire of the same volume, thereby improving the capillary effect within the same volume, increasing the amount of capillary liquid passing through per unit time, and thus improving the heat conduction effect of the heat pipe.

[0015] 2. It offers a variety of shape options, allowing users to choose different shapes of irregularly shaped braided yarn for use in different environments or scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a circular copper tube using the irregularly shaped braided wire forming process for heat pipes according to the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the irregularly shaped braided wire in the forming process of the irregularly shaped braided wire for heat pipes of the present invention. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the structure of the irregularly shaped braided wire in the forming process of the irregularly shaped braided wire for heat pipes of the present invention. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the structure of the irregularly shaped braided wire in the forming process of the irregularly shaped braided wire for heat pipes of the present invention. Figure 3 ;

[0020] The markings in the diagram are: 1. Circular copper tube, 2. Irregularly shaped braided wire, 11. Groove, 12. Separating protrusion.

[0021] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0023] Reference Figures 1 to 3 An embodiment of the forming process for irregularly shaped braided wire for heat pipes according to the present invention is proposed:

[0024] A process for forming irregularly shaped braided wire for heat pipes, the specific steps of which are as follows:

[0025] Grooves 11 are formed on the inner wall of a circular copper tube 1 by spinning. The cross-sectional shape of the grooves 11 is V-shaped or U-shaped, and the thickness between the bottom of the inner side of the grooves 11 and the outer side of the copper tube is 0.03-0.04 mm. Separating protrusions 12 are formed between the grooves 11. The top of the separating protrusions 12 can be curved, flat, or conical.

[0026] By disassembling the tube, the circular copper tube 1 can be broken at the bottom of the groove 11, forming multiple irregularly shaped braided wires 2 with arc-shaped bottoms. (Refer to...) Figure 2 and Figure 4 If the top of the separating protrusion 12 is curved or flat, then the cross-section of the irregular braided wire 2 is hexagonal, and the top of the irregular braided wire 2 is curved or flat. Additionally, if the groove cross-section is U-shaped at this time, it can be cut into shapes such as... Figure 4 The T-shaped line in the middle, compared to Figure 2 and Figure 3 For capillary structures, the effect would be better. (Refer to...) Figure 3 If the top of the dividing protrusion 12 is triangular, then the cross-section of the irregular braided line 2 is pentagonal, and the top of the irregular braided line 2 is conical.

[0027] Finally, the irregularly shaped braided thread 2 is cut by cutting to form multiple irregularly shaped braided threads 2 of the required length.

[0028] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A process for forming irregularly shaped braided wire for heat pipes, characterized in that, The specific steps are as follows: Grooves are formed on the inner wall of a circular copper tube by spinning, thereby forming separating protrusions between the grooves. The circular copper tube is broken at the bottom of the trench by disassembly, forming multiple irregularly shaped braided wires with arc-shaped bottoms. The irregularly shaped braided thread is cut by cutting to form multiple irregularly shaped braided threads of the required length.

2. The forming process for irregularly shaped braided wire for heat pipes according to claim 1, characterized in that, The groove cross-section is V-shaped or U-shaped.

3. The forming process for irregularly shaped braided wire for heat pipes according to claim 1, characterized in that, The thickness between the bottom of the inner side of the trench and the outer side of the copper tube is 0.03-0.04 mm.

4. The forming process for irregularly shaped braided wire for heat pipes according to claim 1, characterized in that, The cross-section of the irregularly shaped braided thread is hexagonal, and the top of the irregularly shaped braided thread is curved.

5. The forming process for irregularly shaped braided wire for heat pipes according to claim 1, characterized in that, The cross-section of the irregularly shaped braided thread is pentagonal, and the top of the irregularly shaped braided thread is conical.

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