High-thermal-conductivity high-temperature-resistant cable

Abstract

The utility model relates to a high thermal conductivity high temperature resistant cable, comprising a tensile rope and a plurality of cable cores annularly distributed on the outer side of the tensile rope, the outer side of the plurality of cable cores is provided with a heat conduction assembly, the heat conduction assembly comprises an inner heat conduction sleeve and an outer heat conduction sleeve, the inner heat conduction sleeve wraps the outer side of the tensile rope, and the outer heat conduction sleeve wraps the outer side of the tensile rope. The outer heat conduction sleeve wraps the outer sides of the cable cores, a plurality of reinforcing racks are annularly and evenly distributed on the inner wall of the outer heat conduction sleeve at intervals, a heat conduction partition plate is arranged between every two adjacent cable cores, one end of each heat conduction partition plate is connected with the inner heat conduction sleeve, and the other end of each heat conduction partition plate is connected with the outer heat conduction sleeve. The outer side of the outer heat conduction sleeve is sequentially coated with a wrapping layer, a shielding layer, a heat dissipation layer and an outer sheath. The main purpose of the utility model is to provide the high-thermal-conductivity high-temperature-resistant cable which has high-temperature-resistant performance and also has good tensile and compression-resistant capability.

Description

Technical Field

[0001] The utility model relates to a cable, in particular to a high-thermal-conductivity and high-temperature-resistant cable. Background Art

[0002] Cables will generate a lot of heat during use. If too much heat accumulates and the conductor is kept in a high temperature environment for a long time, it will affect the normal operation of the conductor, accelerate aging, and shorten the service life of the cable. Therefore, when designing the cable structure, a thermal conductive layer is often added inside the cable to assist in heat dissipation. However, in conventional designs, the thermal conductive layer generally has only one layer, which can only accelerate the transfer of heat conducted to this layer, but cannot accelerate the transfer of heat near the conductor to the outside. Therefore, the thermal conductivity efficiency needs to be improved. Alternatively, multiple thermal conductive layers are designed inside the cable, but the compression resistance of the cable is ignored, which also cannot meet the cable use requirements well. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a high thermal conductivity high temperature resistant cable which has high temperature resistance as well as good tensile and compressive resistance.

[0004] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0005] A high thermal conductivity and high temperature resistant cable, comprising a tensile rope and a plurality of cable cores circumferentially distributed on the outside of the tensile rope, a plurality of cable cores having heat conduction components arranged on the outside, the heat conduction components comprising an inner heat conduction sleeve and an outer heat conduction sleeve, the inner heat conduction sleeve is coated on the outside of the tensile rope, the outer heat conduction sleeve is coated on the outside of the plurality of cable cores, and a plurality of reinforcing racks are evenly distributed circumferentially on the inner wall of the outer heat conduction sleeve, a heat conduction baffle is arranged between two adjacent cable cores, one end of the heat conduction baffle is connected to the inner heat conduction sleeve, and the other end is connected to the outer heat conduction sleeve, and the outer side of the outer heat conduction sleeve is sequentially coated with a wrapping layer, a shielding layer, a heat dissipation layer and an outer sheath.

[0006] Furthermore, the inner heat-conducting sleeve is a polygonal structure, and the outer surface of the side edge of the inner heat-conducting sleeve is an arc-shaped surface that fits the outer surface of the cable core.

[0007] Furthermore, a concave heat-insulating groove is provided on the outer surface of the portion of the outer heat-conducting sleeve connected to the heat-conducting baffle, and the heat-insulating groove extends along the length direction of the cable core.

[0008] Furthermore, the cross-sectional shape of the heat-insulating groove is a trapezoid, and the small end of the trapezoid is located on the upper surface of the outer heat-conducting sleeve.

[0009] Furthermore, the shielding layer is formed by wrapping a double layer of copper wire braided layers, and the wrapping directions of the two layers of copper wire braided layers are opposite.

[0010] Furthermore, the outer sheath is thermoplastic polyurethane elastomer.

[0011] Furthermore, a pressure-resistant cavity is formed between the corners of the inner heat-conducting sleeve and the surface of the anti-tension rope.

[0012] Compared with the prior art, the beneficial effect of the utility model is that: in the utility model, by setting a heat-conducting component and making an ingenious structural design thereof, the heat dissipation efficiency of the cable core is improved, the heat transfer inside the cable is accelerated, and the normal use of the cable core is not affected by high temperature, thereby improving the overall high temperature resistance of the cable; at the same time, the heat-conducting component can also improve the compressive performance of the cable, and when used in combination with the tensile rope, the cable has high temperature resistance while also having good tensile and compressive resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A high thermal conductivity and high temperature resistant cable of the utility model;

[0014] Figure 2 for Figure 1 The schematic diagram of the structure of the heat-conducting component in the high thermal conductivity and high temperature resistant cable is shown.

[0015] Among them, 1. cable core; 11. conductor; 12. insulation layer; 2. tension rope; 3. thermal conductive component; 31. inner thermal conductive sleeve; 32. thermal conductive baffle; 33. outer thermal conductive sleeve; 331. reinforced rack; 332. thermal insulation groove; 4. wrapping layer; 5. shielding layer; 6. heat dissipation layer; 7. outer sheath. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] It should be noted that, in the description of the technical solution of the present invention, some directional words used to clearly describe the technical features of the present invention, such as "front", "back", "up", "down", "top", "bottom", "inside", "outside", etc., are all in accordance with the orientation of the drawings of the present invention.

[0018] Example

[0019] like Figure 1As shown, a high thermal conductivity and high temperature resistant cable of this embodiment includes a tensile rope 2 and a plurality of cable cores 1 circumferentially distributed on the outside of the tensile rope 2, wherein the cable core 1 includes a conductor 11 and an insulating layer 12 coated on the outside of the conductor 11. The tensile rope 2 is made of Kevlar fiber. A heat-conducting component 3 is provided on the outside of the plurality of cable cores 1, wherein the heat-conducting component 3 includes an inner heat-conducting sleeve 31 and an outer heat-conducting sleeve 33, wherein the inner heat-conducting sleeve 31 is coated on the outside of the tensile rope 2, wherein the inner heat-conducting sleeve 31 is a polygonal structure, and the outer surface of the side of the inner heat-conducting sleeve 31 is an arc-shaped surface that fits the outer surface of the cable core 1. Specifically, in this embodiment, the number of sides of the inner heat-conducting sleeve 31 is the same as the number of cable cores 1, and the outer surface of each side is set as an arc-shaped surface that fits the outer surface of the cable core 1, so as to increase the contact area with the surface of the cable core 1, thereby improving the heat conduction efficiency. A pressure-resistant cavity is formed between the corners of the inner heat-conducting sleeve 31 and the surface of the anti-tension rope 2. The cross-sectional width of the pressure-resistant cavity gradually increases from the outside to the inside. When the extrusion force is transmitted to the inner heat-conducting sleeve 31, the pressure-resistant cavity buffers and disperses the extrusion force through deformation.

[0020] The outer heat-conducting sleeve 33 is coated on the outside of several of the cable cores 1, and a filling layer is provided in the gap formed between the outer heat-conducting sleeve 33, the cable core 1 and the inner heat-conducting sleeve 31. In this embodiment, the filling layer is made of ceramic fiber to improve the high temperature resistance of the cable. In addition, a number of reinforcing racks 331 are evenly distributed annularly on the inner wall of the outer heat-conducting sleeve 33. The cross-sectional shape of the reinforcing racks 331 is rectangular or triangular. This structure can not only greatly increase the surface area of ​​the inner wall of the outer heat-conducting sleeve 33 and improve the heat exchange efficiency of the inner wall of the outer heat-conducting sleeve 33, but also enhance the connection tightness between the outer heat-conducting sleeve 33 and the filling layer, avoiding the delamination between the outer heat-conducting sleeve 33 and the filling layer due to the torsion of the cable.

[0021] A heat-conducting baffle 32 is arranged between two adjacent cable cores 1, and one end of the heat-conducting baffle 32 is connected to the corner of the inner heat-conducting sleeve 31, and the other end is connected to the inner wall of the outer heat-conducting sleeve 33. The heat-conducting baffle 32 is used to separate the cable cores 1 to avoid mutual squeezing, and on the other hand, it is used for heat conduction, transferring the heat of the inner heat-conducting sleeve 31 to the outer heat-conducting sleeve 33 to accelerate the heat transfer. In this embodiment, the inner heat-conducting sleeve 31, the outer heat-conducting sleeve 33 and the heat-conducting baffle 32 all extend along the length direction of the cable core 1. In addition, a concave heat-insulating groove 332 is provided on the outer surface of the portion of the outer heat-conducting sleeve 33 connected to the heat-conducting baffle 32, and the heat-insulating groove 332 extends along the length direction of the cable core 1. The cross-sectional shape of the heat-insulating groove 332 is a trapezoid, and the small end of the trapezoid is located on the upper surface of the outer heat-conducting sleeve 33, and the width of the large end of the trapezoid is greater than the width of the heat-conducting baffle 32. This structure avoids direct contact between the heat-conducting baffle 32 and the outer side of the outer heat-conducting sleeve 33 for heat conduction, and reduces the efficiency of heat conduction from outside to inside without affecting the heat transfer to the outside.

[0022] The outer side of the outer heat-conducting sleeve 33 is sequentially coated with a wrapping layer 4, a shielding layer 5, a heat dissipation layer 6 and an outer sheath 7. The shielding layer 5 is formed by wrapping a double layer of copper wire braided layers, and the wrapping directions of the two layers of copper wire braided layers are opposite. This reverse winding method is conducive to further improving the tensile performance of the cable. The heat dissipation layer 6 is made of heat-dissipating silicone rubber material, which has good thermal conductivity and adhesion, and can quickly transfer heat. The outer sheath 7 is made of thermoplastic polyurethane elastomer.

[0023] The utility model discloses a high thermal conductivity and high temperature resistant cable, which improves the heat dissipation efficiency of the cable core 1 and accelerates the heat transfer from the inside of the cable by arranging a heat conducting component 3 and performing an ingenious structural design on it, thereby ensuring that the cable core 1 is not affected in normal use due to high temperature and improving the overall high temperature resistance of the cable; at the same time, the heat conducting component 3 can also improve the compression resistance of the cable, and when used in combination with the tensile rope 2, the cable has high temperature resistance and good tensile and compressive resistance.

[0024] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A high thermal conductivity high temperature resistant cable, characterized in that: The invention comprises a tensile rope (2) and a plurality of cable cores (1) circumferentially distributed on the outside of the tensile rope (2), a plurality of the cable cores (1) being provided with heat-conducting components (3) on the outside, the heat-conducting components (3) comprising an inner heat-conducting sleeve (31) and an outer heat-conducting sleeve (33), the inner heat-conducting sleeve (31) being coated on the outside of the tensile rope (2), the outer heat-conducting sleeve (33) being coated on the outside of the plurality of the cable cores (1), and a plurality of reinforcing racks (331) being uniformly distributed on the inner wall of the outer heat-conducting sleeve (33) at intervals in the circumferential direction, a heat-conducting baffle (32) being provided between two adjacent cable cores (1), one end of the heat-conducting baffle (32) being connected to the inner heat-conducting sleeve (31), and the other end being connected to the outer heat-conducting sleeve (33), and the outer side of the outer heat-conducting sleeve (33) being coated with a wrapping layer (4), a shielding layer (5), a heat dissipation layer (6) and an outer sheath (7) in sequence.

2. A high thermal conductivity high temperature resistant cable according to claim 1, characterized in that: The inner heat-conducting sleeve (31) is a polygonal structure, and the outer surface of the side edge of the inner heat-conducting sleeve (31) is an arc-shaped surface that fits the outer surface of the cable core (1).

3. A high thermal conductivity high temperature resistant cable according to claim 2, characterized in that: An inwardly concave heat-insulating groove (332) is provided on the outer surface of the portion of the outer heat-conducting sleeve (33) connected to the heat-conducting baffle (32), and the heat-insulating groove (332) extends along the length direction of the cable core (1).

4. A high thermal conductivity high temperature resistant cable according to claim 3, characterized in that: The cross-sectional shape of the heat-insulating groove (332) is a trapezoid, and the small end of the trapezoid is located on the upper surface of the outer heat-conducting sleeve (33).

5. A high thermal conductivity and high temperature resistant cable according to claim 1, characterized in that: The shielding layer (5) is formed by wrapping a double layer of copper wire braided layers, and the wrapping directions of the two layers of copper wire braided layers are opposite.

6. A high thermal conductivity high temperature resistant cable according to claim 1, characterized in that: The outer sheath (7) is made of thermoplastic polyurethane elastomer.

7. A high thermal conductivity high temperature resistant cable according to claim 2, characterized in that: A pressure-resistant cavity is formed between the corners of the inner heat-conducting sleeve (31) and the surface of the tension-resistant rope (2).

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