High-pressure pipeline and vehicle

Abstract

The utility model discloses a high-pressure pipeline and a vehicle. The high-pressure pipeline comprises an insulating layer; the wire core layer is arranged on the inner side of the insulating layer and used for electric connection, a plurality of first heat exchange channels extending in the axial direction are arranged in the wire core layer, and the first heat exchange channels are used for exchanging heat with the wire core layer; and the heat exchange layer is arranged in the wire core layer, a plurality of second heat exchange channels extending in the axial direction are arranged in the heat exchange layer, cooling liquid flows in the second heat exchange channels, and the heat exchange layer is used for exchanging heat with the wire core layer. By arranging the first heat exchange channel and the second heat exchange channel, a faster and more efficient heat dissipation mode is provided for the high-pressure pipeline, the heat dissipation speed of the high-pressure pipeline can be increased, the problem of spontaneous combustion of the whole vehicle caused by heat damage of the wire core layer in the high-temperature environment is solved, and the safety of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a high-pressure pipeline and a vehicle. Background Art

[0002] The spontaneous combustion of new energy vehicles and the heat damage of high-voltage systems have made the industry generally aware of the importance of thermal management of motors, batteries, and electronic controls, but the heat damage of high-voltage wires connecting electrical components has been ignored. According to statistics, as the complexity of the vehicle architecture increases, the number of accidents caused by spontaneous combustion of vehicles due to high-voltage wire cores is increasing rapidly.

[0003] In the related technology, the high-voltage wire harness structure adopts the low-voltage wire harness type. The wire core is spirally wound together as needed, and the outer wall is wrapped with a layer of insulation. The heat of the internal wire core is transferred to the insulation layer by layer, and the heat is dissipated through natural cooling. In addition, the high-voltage wire core connects the motor, battery, and electronic control. Due to the space limitations of the vehicle, it is usually arranged in the body and above and below the body. The ventilation environment is poor, it is not easy to dissipate heat, and there is a risk of heat damage. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a high-pressure pipeline, which solves the problem of spontaneous combustion of the whole vehicle caused by heat damage to the core layer in a high-temperature environment by setting a first heat exchange channel and a second heat exchange channel, thereby improving the safety of the whole vehicle.

[0005] The utility model also provides a vehicle.

[0006] According to the first aspect of the utility model, the high-pressure pipeline includes: an insulating layer, a wire core layer, the wire core layer is arranged on the inner side of the insulating layer and is used for electrical connection, a plurality of first heat exchange channels extending in the axial direction are arranged in the wire core layer, and the first heat exchange channels are used for heat exchange with the wire core layer; a heat exchange layer, the heat exchange layer is arranged in the wire core layer, a plurality of second heat exchange channels extending in the axial direction are arranged in the heat exchange layer, a coolant flows in the second heat exchange channels, and the heat exchange layer is used for heat exchange with the wire core layer.

[0007] According to the high-pressure pipeline of the embodiment of the utility model, a faster and more efficient heat dissipation method is provided for the high-pressure pipeline by setting a first heat exchange channel and a second heat exchange channel, which can improve the heat dissipation speed of the high-pressure pipeline, solve the problem of spontaneous combustion of the whole vehicle caused by heat damage to the core layer of the wire in a high temperature environment, and improve the safety of the whole vehicle.

[0008] According to some embodiments of the present invention, there are multiple second heat exchange channels, and the multiple heat exchange channels are arranged at intervals from each other in the circumferential direction of the high-pressure pipeline.

[0009] According to some embodiments of the utility model, the heat exchange layer includes: multiple arc walls and at least two straight plate walls, the at least two straight plate walls are arranged crosswise with each other, the two ends of the arc wall are respectively connected to one end of the two straight plate walls, and a second heat exchange channel is formed between the arc wall and the at least two straight plate walls.

[0010] According to some embodiments of the present invention, a plurality of heat exchange protrusions are arranged on the outer side of the arc-shaped wall, and the plurality of heat exchange protrusions are arranged at intervals from each other in the axial direction and / or circumferential direction of the heat exchange layer.

[0011] According to some embodiments of the present invention, the cross-section of the arc-shaped wall is an arc with a center of curvature disposed outside the intersection of at least two of the straight plate walls.

[0012] According to some embodiments of the present invention, the number of the first heat exchange channels corresponding to the two ends of at least two of the straight plate walls is greater than the number of the first heat exchange channels corresponding to the arc-shaped walls.

[0013] According to some embodiments of the present invention, the cross-section of the first heat exchange channel is one of a circle, an arc groove, a square, an ellipse and a star.

[0014] According to another embodiment of the utility model, the high-pressure pipeline includes: an insulating layer; a heat-conducting layer, the heat-conducting layer is arranged on the inner side of the insulating layer, and the heat-conducting layer is used to conduct heat; a plurality of wire core assemblies, the plurality of wire core assemblies are arranged in the heat-conducting layer at intervals, and the wire core assembly includes: a wire core layer, the wire core layer is arranged on the inner side of the insulating layer and is used for electrical connection, a plurality of first heat exchange channels extending in an axial direction are arranged in the wire core layer, and the first heat exchange channels are used to exchange heat with the wire core layer; a heat exchange layer, the heat exchange layer is arranged in the wire core layer, a plurality of second heat exchange channels extending in the axial direction are arranged in the heat exchange layer, a coolant flows in the second heat exchange channels, and the heat exchange layer exchanges heat with the wire core layer.

[0015] According to some embodiments of the present invention, the heat-conducting layer is a heat-conducting silicone layer.

[0016] The vehicle according to the embodiment of the second aspect of the utility model includes: the high-pressure pipeline or the high-pressure pipeline.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 The structure of the high pressure pipeline according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the high pressure pipeline according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 The structure of the high pressure pipeline according to the embodiment of the utility model is shown in FIG. Figure 3 ;

[0022] Figure 4 yes Figure 3 Section view AA in.

[0023] Reference numerals:

[0024] 100. High-pressure pipeline;

[0025] 10. Insulation layer;

[0026] 11. wire core layer; 111. first heat exchange channel;

[0027] 12. heat exchange layer; 121. second heat exchange channel; 122. arc-shaped wall; 123. straight plate wall. DETAILED DESCRIPTION

[0028] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0029] Reference below Figure 1-Figure 4 A high-pressure pipeline 100 according to an embodiment of the present invention is described. The present invention also provides a high-pressure pipeline 100 . Furthermore, the present invention also provides a vehicle.

[0030] Reference Figure 1-4 As shown, the high-pressure pipeline 100 of the first embodiment of the utility model includes: an insulation layer 10, a core layer 11 and a heat exchange layer 12.

[0031] The wire core layer 11 is arranged inside the insulating layer 10 and is used for electrical connection. A plurality of first heat exchange channels 111 extending in the axial direction are arranged inside the wire core layer 11. The first heat exchange channels 111 are used for heat exchange with the wire core layer 11. Specifically, the insulating layer 10 is arranged on the outermost side of the high-pressure pipeline 100, and the wire core layer 11 is arranged on the inner side of the insulating layer 10. The insulating layer 10 and the wire core layer 11 adopt a conformal design to ensure that the insulating layer 10 and the wire core layer 11 are more closely combined, reduce possible gaps or cracks, thereby improving the reliability and durability of the electrical system and reducing space occupancy and weight.

[0032] The insulating layer 10 can usually be made of rubber material, which has good heat resistance and chemical resistance, can transfer the heat generated by the wire core layer 11, and can also provide protection for the wire core layer 11 to prevent the wire core layer 11 from being mechanically damaged, chemically corroded or affected by other external factors. In addition, since a high-voltage line assembly needs to be composed of multiple high-voltage pipelines 100, the insulating layer 10 can prevent the current from generating an electrical short circuit between multiple wire core layers 11, which can prevent serious consequences such as power loss, system failure, and even fire, and improve the safety of the vehicle electrical system to a certain extent.

[0033] The wire core layer 11 serves as a transmission medium for high-voltage current in the power transmission system. It can realize transmission between different high-voltage parts, such as high-voltage batteries, motors, motor controllers and other high-voltage electrical components. A large amount of heat energy will be generated during the transmission process, which is a heat source. The wire core layer 11 is usually made of conductive materials, such as copper or aluminum, to ensure that the current can be effectively transmitted and maintain efficient operation of the system.

[0034] A plurality of first heat exchange channels 111 extending in the axial direction are arranged in the wire core layer 11, and the first heat exchange channels 111 penetrate the wire core layer 11 in the axial direction, and are used for heat exchange with the wire core layer 11. Specifically, a refrigerant medium is placed in the first heat exchange channel 111, which can quickly absorb the heat generated by the wire core layer 11, and then release it into the atmosphere through the air conditioning system heat exchanger, so as to achieve precise temperature control of the wire core layer 11 and reduce the risk of heat damage.

[0035] The heat exchange layer 12 is arranged in the wire core layer 11, and a plurality of second heat exchange channels 121 extending in the axial direction are arranged in the heat exchange layer 12, and a coolant flows in the second heat exchange channels 121, and the heat exchange layer 12 is used to exchange heat with the wire core layer 11. Specifically, the heat exchange layer 12 is arranged on the inner side of the wire core layer 11 and is arranged in close contact with the wire core layer 11, and can be used to exchange heat with the wire core layer 11, and a plurality of second heat exchange channels 121 extending in the axial direction are arranged in the heat exchange layer 12, and the second heat exchange channels 121 penetrate the heat exchange layer 12 in the axial direction, and a non-conductive liquid medium with good thermal conductivity can be used as a coolant in the second heat exchange channel 121, such as transmission oil, so as to exchange the heat of the wire core layer 11 with the coolant in the second heat exchange channel 121, control the temperature of the wire core layer 11, and improve the safety of the whole vehicle.

[0036] In addition, the inner side of the heat exchange layer 12 exchanges heat with the coolant, and the outer side exchanges heat with the wire core layer 11, so that the heat of the wire core layer 11 can be directly transferred to the coolant, that is, the "direct cooling mode". Compared with the traditional heat exchange structure that needs to add a heat conductive structure for heat exchange, the efficiency is improved.

[0037] Moreover, the first heat exchange channel 111 and the second heat exchange channel 121 can be cooled separately, and a variety of cooling modes can be realized. For example, the second heat exchange channel 121 is cooled alone, and the high-voltage current of the whole vehicle flows through the wire core layer 11. The wire core layer 11 generates a large amount of heat under the action of the current. The "direct cooling mode" is adopted to make the coolant in the second heat exchange channel 121 directly exchange heat with the wire core layer 11, and the heat exchange efficiency is greatly improved. The heat generated by the wire core layer 11 is transferred to the coolant through the heat exchange layer 12, and the coolant is transferred to the air through the oil cooling system heat exchanger, so that the heat is transferred from the wire core layer 11 to the atmosphere, and the temperature of the wire core layer 11 is precisely controlled. The heat exchange power of this cooling mode is relatively low, and the energy consumption of the whole vehicle is relatively small.

[0038] For another example, the first heat exchange channel 111 is cooled alone, and the high-voltage current of the whole vehicle flows through the wire core layer 11. The wire core layer 11 generates a large amount of heat under the action of the current. The refrigerant in the first heat exchange channel 111 is used to quickly absorb a large amount of heat from the wire core layer 11 by phase change. The heat in the refrigerant is released into the atmosphere through the air conditioning system heat exchanger, so that the temperature of the wire core layer 11 is precisely controlled. The heat exchange power of this cooling mode is relatively high, but the compressor needs to be started, so the energy consumption of the whole vehicle is relatively high.

[0039] Alternatively, the first heat exchange channel 111 and the second heat exchange channel 121 are cooled simultaneously. This mode requires starting the compressor and the oil cooling system, resulting in high energy consumption for the entire vehicle, but the heat exchange power is the highest. It is suitable for scenarios where rapid cooling is required when the core layer 11 is continuously at high temperature.

[0040] Therefore, by setting the first heat exchange channel 111 and the second heat exchange channel 121, a faster and more efficient heat dissipation method is provided for the high-pressure pipeline 100, which can improve the heat dissipation speed of the high-pressure pipeline 100, solve the problem of spontaneous combustion of the whole vehicle caused by heat damage to the core layer 11 in a high temperature environment, and improve the safety of the whole vehicle.

[0041] Reference Figure 1-4 As shown, there are multiple second heat exchange channels 121, and the multiple heat exchange channels are spaced apart from each other in the circumferential direction of the high-pressure pipeline. The heat exchange surface area of ​​the multiple heat exchange channels is larger, which can fully contact with the coolant, improve the heat exchange efficiency of the second heat exchange channel 121, and reduce the heat damage problem of the vehicle.

[0042] Reference Figure 1-4As shown, the heat exchange layer 12 includes: a plurality of arcuate walls 122 and at least two straight plate walls 123, the at least two straight plate walls 123 are arranged crosswise, the two ends of the arcuate wall 122 are respectively connected to one end of the two straight plate walls 123, and the arcuate wall 122 and the at least two straight plate walls 123 form a second heat exchange channel 121. In the embodiment of the utility model, the heat exchange layer 12 has four arcuate walls 122 and two straight plate walls 123, and the four arcuate walls 122 and the two straight plate walls 123 can separate the heat exchange layer 12 into four second heat exchange channels 121, and the four second heat exchange channels 121 are in contact with each other in the circumferential direction of the high-pressure pipeline 100.

[0043] Furthermore, a plurality of heat exchange protrusions are arranged on the outer side of the arc-shaped wall 122, and the plurality of heat exchange protrusions are arranged at intervals in the axial direction and / or the circumferential direction of the heat exchange layer 12. By providing a plurality of heat exchange protrusions in the axial direction or the circumferential direction, the roughness and irregularity of the outer surface of the heat exchange layer 12 can be increased, thereby effectively increasing the effective heat exchange surface area and improving the heat exchange efficiency.

[0044] Reference Figure 1-4 As shown, the cross section of the arc wall 122 is an arc with the center of curvature arranged outside the intersection of at least two straight plate walls 123. That is, the arc wall 122 is an arc away from the intersection of the straight plate walls 123, and the arc length of the arc wall 122 is longer, that is, the effective contact area between the arc wall 122 and the wire core layer 11 is larger, so that the heat exchange efficiency between the heat exchange layer 12 and the wire core layer 11 can be improved, and the heat generated by the wire core layer 11 during operation can be effectively absorbed.

[0045] Reference Figure 1-4 As shown, the number of the first heat exchange channels 111 and the two ends of at least two straight plate walls 123 corresponding to each other is greater than the number of the first heat exchange channels 111 and the arc-shaped walls 122 corresponding to each other. In other words, the first heat exchange channels 111 are arranged in a staggered manner on the wire core layer 11, and the number of the first heat exchange channels 111 corresponding to the straight plate walls 123 is greater than the number of the first heat exchange channels 111 corresponding to the arc-shaped walls 122. Specifically, the number of the first heat exchange channels 111 corresponding to the straight plate walls 123 is two, and the number of the first heat exchange channels 111 corresponding to the arc-shaped walls 122 is one. Such a staggered arrangement can improve the heat exchange uniformity of the wire core layer 11 and improve the overall heat exchange efficiency.

[0046] Reference Figure 1-4 As shown, the cross-section of the first heat exchange channel 111 can be one of a circle, an arc groove, a square, an ellipse and a star. That is, the number and form of the first heat exchange channel 111 can be designed according to the heat exchange requirement of the wire core layer 11. The greater the heat exchange, the more the number of the first heat exchange channels 111. The form of the first heat exchange channel 111 should increase the contact area with the wire core layer 11 as much as possible to improve the heat exchange efficiency.

[0047] A high-pressure pipeline 100 according to another embodiment of the present invention comprises: an insulating layer 10, a heat-conducting layer and a plurality of wire core assemblies. The heat-conducting layer is arranged inside the insulating layer 10, and the heat-conducting layer is used to conduct heat, and the plurality of wire core assemblies are arranged in the heat-conducting layer at intervals. That is, the high-pressure pipeline 100 can also be composed of the insulating layer 10, the heat-conducting layer and a plurality of wire core assemblies, and the heat-conducting layer is used to conduct heat of the plurality of wire core assemblies to reduce the risk of heat damage.

[0048] The wire core assembly includes: a wire core layer 11 and a heat exchange layer 12. The wire core layer 11 is arranged on the inner side of the insulating layer 10 and is used for electrical connection. A plurality of first heat exchange channels 111 extending in the axial direction are arranged in the wire core layer 11. The first heat exchange channels 111 are used for heat exchange with the wire core layer 11. Specifically, the insulating layer 10 is arranged on the outermost side of the high-pressure pipeline 100, and the wire core layer 11 is arranged on the inner side of the insulating layer 10. The insulating layer 10 and the wire core layer 11 adopt a conformal design to ensure that the insulating layer 10 and the wire core layer 11 are more closely combined, reduce possible gaps or cracks, thereby improving the reliability and durability of the electrical system and reducing space occupancy and weight.

[0049] The wire core layer 11 serves as a transmission medium for high-voltage current in the power transmission system. It can realize transmission between different high-voltage parts, such as high-voltage batteries, motors, motor controllers and other high-voltage electrical components. A large amount of heat energy will be generated during the transmission process, which is a heat source. The wire core layer 11 is usually made of conductive materials, such as copper or aluminum, to ensure that the current can be effectively transmitted and maintain efficient operation of the system.

[0050] A plurality of first heat exchange channels 111 extending in the axial direction are arranged in the wire core layer 11, and the first heat exchange channels 111 penetrate the wire core layer 11 in the axial direction, and are used for heat exchange with the wire core layer 11. Specifically, a refrigerant medium is placed in the first heat exchange channel 111, which can quickly absorb the heat generated by the wire core layer 11, and then release it into the atmosphere through the air conditioning system heat exchanger, so as to achieve precise temperature control of the wire core layer 11 and reduce the risk of heat damage.

[0051] The heat exchange layer 12 is arranged in the wire core layer 11, and a plurality of second heat exchange channels 121 extending in the axial direction are arranged in the heat exchange layer 12, and a coolant flows in the second heat exchange channels 121, and the heat exchange layer 12 exchanges heat with the wire core layer 11. Specifically, the heat exchange layer 12 is arranged on the inner side of the wire core layer 11 and is arranged in close contact with the wire core layer 11, and can be used for heat exchange with the wire core layer 11. A plurality of second heat exchange channels 121 extending in the axial direction are arranged in the heat exchange layer 12, and the second heat exchange channels 121 penetrate the heat exchange layer 12 in the axial direction. A non-conductive liquid medium with good thermal conductivity can be used as a coolant in the second heat exchange channel 121, such as transmission oil, so as to exchange the heat of the wire core layer 11 with the coolant in the second heat exchange channel 121, control the temperature of the wire core layer 11, and improve the safety of the whole vehicle.

[0052] In addition, the inner side of the heat exchange layer 12 exchanges heat with the coolant, and the outer side exchanges heat with the wire core layer 11, so that the heat of the wire core layer 11 can be directly transferred to the coolant, that is, the "direct cooling mode". Compared with the traditional heat exchange structure that needs to add a heat conductive structure for heat exchange, the efficiency is improved.

[0053] Moreover, the first heat exchange channel 111 and the second heat exchange channel 121 can be cooled separately, and a variety of cooling modes can be realized. For example, the second heat exchange channel 121 is cooled alone, and the high-voltage current of the whole vehicle flows through the wire core layer 11. The wire core layer 11 generates a large amount of heat under the action of the current. The "direct cooling mode" is adopted to make the coolant in the second heat exchange channel 121 directly exchange heat with the wire core layer 11, and the heat exchange efficiency is greatly improved. The heat generated by the wire core layer 11 is transferred to the coolant through the heat exchange layer 12, and the coolant is transferred to the air through the oil cooling system heat exchanger, so that the heat is transferred from the wire core layer 11 to the atmosphere, and the temperature of the wire core layer 11 is precisely controlled. The heat exchange power of this cooling mode is relatively low, and the energy consumption of the whole vehicle is relatively small.

[0054] For another example, the first heat exchange channel 111 is cooled alone, and the high-voltage current of the whole vehicle flows through the wire core layer 11. The wire core layer 11 generates a large amount of heat under the action of the current. The refrigerant in the first heat exchange channel 111 is used to quickly absorb a large amount of heat from the wire core layer 11 by phase change. The heat in the refrigerant is released into the atmosphere through the air conditioning system heat exchanger, so that the temperature of the wire core layer 11 is precisely controlled. The heat exchange power of this cooling mode is relatively high, but the compressor needs to be started, so the energy consumption of the whole vehicle is relatively high.

[0055] Alternatively, the first heat exchange channel 111 and the second heat exchange channel 121 are cooled simultaneously. This mode requires starting the compressor and the oil cooling system, resulting in high energy consumption for the entire vehicle, but the heat exchange power is the highest. It is suitable for scenarios where rapid cooling is required when the core layer 11 is continuously at high temperature.

[0056] The heat-conducting layer is a heat-conducting silicone layer. The heat-conducting silicone layer generally has good thermal conductivity, so that heat can be quickly and effectively transferred from the wire core assembly to the surrounding environment, thereby maintaining the normal working temperature of the high-pressure pipeline 100.

[0057] The vehicle of the second embodiment of the utility model includes: a high-pressure pipeline 100 or a high-pressure pipeline 100.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A high pressure pipeline, characterized in that: include: Insulation layer (10); A wire core layer (11), the wire core layer (11) being arranged on the inner side of the insulating layer (10) and used for electrical connection, a plurality of first heat exchange channels (111) extending in the axial direction being arranged in the wire core layer (11), the first heat exchange channels (111) being used for heat exchange with the wire core layer (11); A heat exchange layer (12), the heat exchange layer (12) being arranged in the wire core layer (11), a plurality of second heat exchange channels (121) extending in an axial direction being arranged in the heat exchange layer (12), a coolant flowing in the second heat exchange channels (121), and the heat exchange layer (12) being used for exchanging heat with the wire core layer (11).

2. The high pressure pipeline according to claim 1, characterized in that: There are a plurality of second heat exchange channels (121), and the plurality of heat exchange channels are arranged at intervals from each other in the circumferential direction of the high-pressure pipeline.

3. The high pressure pipeline according to claim 2, characterized in that: The heat exchange layer (12) comprises: a plurality of arcuate walls (122) and at least two straight plate walls (123), wherein the at least two straight plate walls (123) are arranged to cross each other, and the two ends of the arcuate wall (122) are respectively connected to one end of the two straight plate walls (123), and a second heat exchange channel (121) is formed between the arcuate wall (122) and the at least two straight plate walls (123).

4. The high pressure pipeline according to claim 3, characterized in that: A plurality of heat exchange protrusions are arranged on the outer side of the arc-shaped wall (122), and the plurality of heat exchange protrusions are arranged at intervals from each other in the axial direction and / or the circumferential direction of the heat exchange layer (12).

5. The high pressure pipeline according to claim 3, characterized in that: The cross section of the arc-shaped wall (122) is an arc with the center of curvature arranged outside the intersection of at least two of the straight plate walls (123).

6. The high pressure pipeline according to claim 3, characterized in that: The number of the first heat exchange channel (111) and the two ends of at least two straight plate walls (123) corresponding to each other is greater than the number of the first heat exchange channel (111) and the curved wall (122) corresponding to each other.

7. The high pressure pipeline according to claim 1, characterized in that: The cross-section of the first heat exchange channel (111) is one of a circle, an arc groove, a square, an ellipse and a star.

8. A high pressure pipeline, characterized in that: include: Insulation layer (10); A heat-conducting layer, the heat-conducting layer being arranged on the inner side of the insulating layer (10), and the heat-conducting layer being used for conducting heat; A plurality of wire core assemblies, wherein the plurality of wire core assemblies are arranged at intervals in the heat conducting layer, and the wire core assembly comprises: A wire core layer (11), the wire core layer (11) being arranged on the inner side of the insulating layer (10) and used for electrical connection, a plurality of first heat exchange channels (111) extending in the axial direction being arranged in the wire core layer (11), the first heat exchange channels (111) being used for heat exchange with the wire core layer (11); A heat exchange layer (12), the heat exchange layer (12) being arranged in the wire core layer (11), a plurality of second heat exchange channels (121) extending in an axial direction being arranged in the heat exchange layer (12), a coolant flowing in the second heat exchange channels (121), and the heat exchange layer (12) and the wire core layer (11) exchanging heat.

9. The high pressure pipeline according to claim 8, characterized in that: The heat-conducting layer is a heat-conducting silica gel layer.

10. A vehicle, characterized in that: include: The high-pressure pipeline according to any one of claims 1 to 7 or the high-pressure pipeline according to any one of claims 8 to 9.

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