A soft, oil-resistant double-layer high-voltage cable for new energy vehicles

Abstract

The present invention discloses a soft, oil-resistant double-layer high-voltage cable for new energy vehicles, which includes a central cooling mechanism, the central cooling mechanism includes a cross hollow tube, and a partition is fixedly connected to the middle end of the inner cavity of the cross hollow tube; a flow velocity regulating mechanism, the number of the flow velocity regulating mechanisms is several, and they are installed on the left and right sides of the partition, and the installation direction of the flow velocity regulating mechanism on the left side is opposite to that of the flow velocity regulating mechanism on the right side; a heat conduction mechanism, the number of the heat conduction mechanisms is several, and they are installed on the surface of the central cooling mechanism. The technical problem to be solved by the present invention is that when the existing soft, oil-resistant double-layer high-voltage cable is cooled by coolant, it is not convenient to adjust the flow velocity of the coolant according to the temperature of the battery core inside the cable, and it is difficult to keep the temperature of the battery core constant in an appropriate range, and the thermal conductivity efficiency is low, which reduces the heat dissipation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to a soft, oil-resistant double-layer high-voltage cable for new energy vehicles. Background Art

[0002] The soft, oil-resistant double-layer high-voltage cable for new energy vehicles is a high-voltage power transmission system specially designed for electric vehicles and plug-in hybrid vehicles. In order to adapt to the complex wiring requirements inside the vehicle, this cable needs to have good flexibility to facilitate installation and reduce damage caused by bending. Due to the presence of various oil substances inside the car, the cable needs to have strong oil resistance to ensure that it will not be corroded or damaged by these liquids during long-term use. This cable is related to the energy transmission efficiency and safety between the battery pack and the motor.

[0003] A soft, oil-resistant double-layer high-voltage cable for new energy vehicles with a Chinese patent application number of 201711221784.0 includes 6 types of conductors in a twisted form, an isolation layer is coated on the outside of the 6 types of conductors, a silicone layer is coated on the outside of the isolation layer, a tinned copper braided shielding layer is coated on the outside of the silicone layer, an aluminum foil shielding layer is coated on the outside of the tinned copper braided shielding layer, and an XLPO insulation layer is coated on the outside of the aluminum foil shielding layer. The isolation layer is formed by wrapping cotton paper around the outside of the 6 types of conductors.

[0004] The cooling device for electric wires with Chinese patent application number 201510070804.3 is capable of cooling the electric wires contained in the shielded tube. Inserted inside the shielded tube are: a plurality of electric wires connecting the motor and the inverter; and a cooling pipe for cooling water to pass through the inside. The electric wires are gathered in the center of the shielded tube, and three cooling pipes are arranged in a manner that surrounds these electric wires from the outside. In addition, each cooling pipe is connected to a circulation circuit of cooling water for cooling the engine.

[0005] When existing soft oil-resistant double-layer high-voltage cables are cooled with coolant, it is not convenient to adjust the flow rate of the coolant according to the temperature of the battery core inside the cable, making it difficult to keep the temperature of the battery core constant within an appropriate range. In addition, the thermal conductivity is low, which reduces the heat dissipation efficiency. Summary of the invention

[0006] The technical problem to be solved by the present invention is that when the existing soft and oil-resistant double-layer high-voltage cable is cooled by coolant, it is not convenient to adjust the flow rate of the coolant according to the temperature of the battery core inside the cable, it is difficult to keep the temperature of the battery core constant within an appropriate range, and the thermal conductivity efficiency is low, which reduces the heat dissipation efficiency.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a soft oil-resistant double-layer high-voltage cable for new energy vehicles, comprising:

[0008] A central cooling mechanism, the central cooling mechanism comprising a cross hollow tube, a partition being fixedly connected to the middle end of the inner cavity of the cross hollow tube;

[0009] A flow velocity regulating mechanism, wherein the flow velocity regulating mechanism is in a plurality and is installed on the left and right sides of the partition, and the installation direction of the flow velocity regulating mechanism on the left side is opposite to that of the flow velocity regulating mechanism on the right side;

[0010] A heat-conducting mechanism, wherein the number of the heat-conducting mechanisms is several and the heat-conducting mechanisms are installed on the surface of the central cooling mechanism, and the heat-conducting mechanism comprises heat-conducting silica gel, and the surface of the heat-conducting silica gel is fixedly connected with heat-conducting paste;

[0011] A battery core mechanism, the battery core mechanism is installed inside the heat conduction mechanism, and the battery core mechanism includes a first protective sleeve;

[0012] The protection mechanism is sleeved on the outside of the plurality of heat-conducting mechanisms, and comprises an outer sheath and a second insulating layer.

[0013] Preferably, both front and rear ends of the cross hollow tube are fixedly connected with blocking blocks, two through holes are opened on the blocking block on the rear side, a coolant connector is installed inside the through holes, a liquid inlet chamber and a liquid return chamber are respectively opened on the left and right sides of the inner cavity of the cross hollow tube, the liquid inlet chamber is located on the left side of the partition, and the liquid return chamber is located on the right side of the partition, and the coolant connector is connected with the liquid inlet chamber and the liquid return chamber.

[0014] Preferably, a flow hole is opened on the front side of the partition surface, and the flow hole is connected to the liquid inlet cavity and the liquid return cavity respectively.

[0015] Preferably, arc-shaped grooves are provided on the surfaces of the cross hollow tube and the blocking block, and the surface of the thermal conductive paste is fixedly connected to the inner wall of the arc-shaped groove.

[0016] Preferably, the flow velocity regulating mechanism includes a support member and a regulator, the support member and the regulator are fixedly connected to the surface of the partition, a baffle is rotatably connected to the support member, a connecting rod is rotatably connected to one side of the baffle, one end of the connecting rod is rotatably connected to a push rod, one end of the push rod is fixedly connected to a sliding rod, the sliding rod passes through the regulator and is movably connected to its inner wall.

[0017] Preferably, a memory alloy spring is fixedly connected to one side of the inner wall of the push rod, the memory alloy spring is movably sleeved on the surface of the slide rod, a sliding frame is installed on one end of the memory alloy spring, the inner wall of the sliding frame is fixedly connected to the surface of the slide rod, and the surface of the sliding frame is slidably connected to the inner wall of the regulator.

[0018] Preferably, a mounting hole is opened inside the thermally conductive silicone, the surface of the first protective sleeve is fixedly connected to the inner wall of the mounting hole, a graphene thermal conductive sheet is fixedly connected inside the thermally conductive silicone, the graphene thermal conductive sheet is an arc-shaped structure, and a plurality of graphene fins are fixedly connected to one side of the graphene thermal conductive sheet, and the graphene fins are located on the upper and lower sides of the mounting hole.

[0019] Preferably, the first shielding layer is fixedly connected to the inner wall of the first protective sleeve, the first insulating layer is fixedly connected to the inner wall of the first shielding layer, the conductor is fixedly connected to the inner wall of the first insulating layer, the first protective sleeve material is polyurethane, the first shielding layer material is aluminum foil, the first insulating layer material is cross-linked polyethylene, and the conductor material is copper wire.

[0020] Preferably, a second shielding layer is fixedly connected to the inner wall of the outer sheath, a reinforcing layer is fixedly connected to the inner wall of the second shielding layer, the inner wall of the reinforcing layer is fixedly connected to the surface of the second insulating layer, the outer sheath material is chloroprene rubber, the second shielding layer material is semi-conductive paper, the reinforcing layer material is aramid woven fiber, and the second insulating layer material is PET.

[0021] Preferably, the inner wall of the second insulating layer is fixedly connected with a strip support frame and a fireproof filler, respectively; the strip support frame is installed on the upper and lower sides and the left and right sides of the cross hollow tube; the fireproof filler is installed on the surface of the thermal conductive paste; and the fireproof filler material is quartz powder.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention provides a central cooling mechanism, which can facilitate the flow of cooling liquid inside the cable, absorb the heat generated by the operation of the battery core mechanism, and cool the battery core mechanism. The cooling liquid joint is connected to the external cooling liquid, and the cooling liquid enters the liquid inlet cavity and flows back to the liquid return cavity through the flow hole. Finally, the cooling liquid after absorbing heat flows back to the cooling system through the cooling liquid joint. During the circulation of the cooling liquid inside the cross hollow tube, the heat conducted by the heat conducting mechanism is absorbed to cool the battery core mechanism. During the operation, the conductor is energized and heated, and the heat passes through the first insulating layer, the first shielding layer and the first protective sleeve in turn and enters the thermally conductive silica gel, the graphene thermal conductive sheet and the graphene fin. The heat of the entire heat conducting mechanism is conducted to the surface and the inside of the cross hollow tube through the thermally conductive paste, so as to realize efficient heat conduction. The cooling liquid can absorb the heat generated by the conductor when it is working, and take away the heat through the circulating flow, so as to effectively reduce the temperature of the cable. The cross hollow tube is cross-shaped, which increases the surface area of ​​the contact between the cooling liquid and the heat conducting mechanism, and improves the heat exchange efficiency.

[0024] 2. The present invention can adjust the flow rate of the coolant inside the central cooling mechanism according to the temperature of the coolant by setting a flow rate regulating mechanism, so that the battery core mechanism is kept within a suitable range. When the coolant temperature is too high, the flow rate of the coolant is increased to increase the cooling efficiency and prevent the resistance of the conductor from increasing. When the coolant temperature is too low, the flow rate of the coolant is reduced to prevent the temperature of the battery core mechanism from being too low and affecting the mechanical properties of the conductor and the first insulating layer. When the flow rate regulating mechanism works in high-temperature coolant, the heat of the high-temperature coolant is transferred to the regulator and the memory alloy spring. The memory alloy spring stretches after being heated, driving the sliding frame to slide inside the regulator. The sliding frame drives the sliding rod to extend out of the regulator, and the sliding rod drives the push rod to return. The push rod retracts, and the push rod drives the connecting rod and the baffle to retract. The baffle retracts inward inside the support, reducing the obstruction to the coolant and increasing the flow rate of the coolant in the cross hollow tube. By increasing the flow rate, the heat absorption efficiency can be increased. When working in low-temperature coolant, the memory alloy spring retracts, and drives the slide rod to retract into the regulator through the slide frame, so that the baffle extends outward to continue to block the coolant and reduce the flow rate of the coolant. By automatically adjusting the coolant flow rate, the optimal working temperature of the cable can be maintained under different working conditions, thereby improving the energy conversion efficiency of the entire system. The two flow speed adjustment mechanisms are oppositely installed to adjust the flow of the coolant in the liquid inlet chamber and the liquid return chamber in different directions respectively.

[0025] 3. The present invention can facilitate the efficient conduction of the heat of the battery cell mechanism to the central cooling mechanism by setting a heat conduction mechanism, thereby improving the efficiency of heat dissipation. The graphene heat conductive sheet and the graphene fin have extremely high thermal conductivity, and can form an efficient heat conduction path inside the thermally conductive silicone, which is helpful to quickly transfer heat from the battery cell mechanism to the central cooling mechanism. The thermal conductive paste is used to fill tiny gaps and uneven surfaces, further increasing the area of ​​thermal contact and reducing thermal resistance. The graphene fins are evenly distributed inside the thermally conductive silicone, ensuring the thermal conductivity of the thermally conductive mechanism. The thermally conductive silicone itself has good flexibility, which can protect the internal components from damage when the cable is bent. The addition of thermally conductive silicone and graphene fins not only enhances the thermal conductivity, but also improves the mechanical strength of the thermally conductive silicone, making it more durable. The softness of the thermally conductive silicone enables it to adapt well to the shape of the battery cell mechanism and ensure good contact. Through effective heat dissipation, the cable can be maintained within a suitable operating temperature range, thereby improving the energy conversion efficiency and reliability of the entire system, ensuring that the cable can maintain efficient and stable performance under various working conditions, thereby improving the overall performance and safety of the electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0027] Figure 2The structure of the present invention is schematically shown Figure 2 ;

[0028] Figure 3 is a cross-sectional view of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the central cooling mechanism of the present invention;

[0030] Figure 5 It is a cross-sectional view of the central cooling mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the flow velocity regulating mechanism of the present invention;

[0032] Figure 7 is a cross-sectional view of the flow velocity regulating mechanism of the present invention;

[0033] Figure 8 It is a schematic diagram of the flow of high-temperature coolant in the central cooling mechanism of the present invention;

[0034] Fig. 9 It is a schematic diagram of the flow of low-temperature coolant in the central cooling mechanism of the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of the battery cell mechanism of the present invention;

[0036] Fig.11 It is a schematic diagram of the heat conduction mechanism structure of the present invention;

[0037] Fig.12 It is a schematic diagram of the structure of the graphene heat conductive sheet of the present invention;

[0038] Fig.13 It is a schematic diagram of the structure of the protection mechanism of the present invention;

[0039] Fig.14 It is a schematic diagram of the structure of the fireproof filler of the present invention;

[0040] Fig.15 It is a schematic diagram of the strip support skeleton structure of the present invention.

[0041] In the figure: 100, central cooling mechanism; 101, cross hollow tube; 102, arc groove; 103, blocking block; 104, partition; 105, through hole; 106, liquid return chamber; 107, flow hole; 108, liquid inlet chamber; 200, flow speed adjustment mechanism; 201, support member; 202, baffle; 203, connecting rod; 204, push rod; 205, regulator; 206, slide rod; 207, memory alloy spring; 208, slide frame; 300, heat conduction mechanism; 3 01, thermal conductive silicone; 302, graphene thermal conductive sheet; 303, mounting hole; 304, thermal conductive paste; 305, graphene fin; 400, battery cell structure; 401, first protective sleeve; 402, conductor; 403, first insulating layer; 404, first shielding layer; 500, protective mechanism; 501, outer sleeve; 502, second shielding layer; 503, reinforcement layer; 504, second insulating layer; 600, strip support frame; 700, fireproof filler; 800, coolant connector. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0043] like Figure 1-15 As shown, this embodiment provides a soft, oil-resistant double-layer high-voltage cable for new energy vehicles, including a central cooling mechanism 100, the central cooling mechanism 100 includes a cross hollow tube 101, and a partition 104 is fixedly connected to the middle end of the inner cavity of the cross hollow tube 101.

[0044] The front and rear ends of the cross hollow tube 101 are fixedly connected with blocking blocks 103. Two through holes 105 are opened on the rear blocking block 103. A coolant connector 800 is installed inside the through holes 105. A liquid inlet chamber 108 and a liquid return chamber 106 are respectively opened on the left and right sides of the inner cavity of the cross hollow tube 101. The liquid inlet chamber 108 is located on the left side of the partition 104, and the liquid return chamber 106 is located on the right side of the partition 104. The coolant connector 800 is connected to the liquid inlet chamber 108 and the liquid return chamber 106.

[0045] A flow hole 107 is opened on the front side of the surface of the partition plate 104, and the flow hole 107 is connected to the liquid inlet chamber 108 and the liquid return chamber 106 respectively.

[0046] The surfaces of the cross hollow tube 101 and the blocking block 103 are both provided with arc grooves 102 , and the surface of the thermal conductive paste 304 is fixedly connected to the inner wall of the arc groove 102 .

[0047] By setting up the central cooling mechanism 100, the coolant can flow inside the cable, absorb the heat generated by the battery cell mechanism 400 during operation, and cool the battery cell mechanism 400. The coolant connector 800 is connected to the external coolant, and the coolant enters the liquid inlet cavity 108 and flows back to the liquid return cavity 106 through the flow hole 107. Finally, the coolant after absorbing heat flows back to the cooling system through the coolant connector 800. During the circulation of the coolant inside the cross hollow tube 101, the heat conducted by the heat conduction mechanism 300 is absorbed to cool the battery cell mechanism 400. During the operation, the conductor 402 generates heat when powered on, and the heat passes through the first insulating layer 403, the first shielding layer 404 and the first protective sleeve 401 in sequence and enters into the thermally conductive silicone 301, the graphene thermal conductive sheet 302 and the graphene fin 305. The heat of the entire heat-conducting mechanism 300 is conducted to the surface and interior of the cross hollow tube 101 through the thermally conductive paste 304, thereby achieving efficient heat conduction. The coolant can absorb the heat generated by the conductor 402 when it is working, and take the heat away through circulating flow, thereby effectively reducing the temperature of the cable. The cross hollow tube 101 is in a cross shape, which increases the surface area of ​​the coolant in contact with the heat-conducting mechanism 300 and improves the heat exchange efficiency.

[0048] It also includes a flow velocity regulating mechanism 200 . There are several flow velocity regulating mechanisms 200 installed on the left and right sides of the partition 104 . The installation directions of the left flow velocity regulating mechanism 200 and the right flow velocity regulating mechanism 200 are opposite.

[0049] The flow velocity regulating mechanism 200 includes a support member 201 and a regulator 205, the support member 201 and the regulator 205 are fixedly connected to the surface of the partition 104, a baffle 202 is rotatably connected to the support member 201, a connecting rod 203 is rotatably connected to one side of the baffle 202, one end of the connecting rod 203 is rotatably connected to a push rod 204, one end of the push rod 204 is fixedly connected to a sliding rod 206, the sliding rod 206 passes through the regulator 205 and is movably connected to its inner wall.

[0050] A memory alloy spring 207 is fixedly connected to one side of the inner wall of the push rod 204, and the memory alloy spring 207 is movably sleeved on the surface of the slide rod 206. A sliding frame 208 is installed on one end of the memory alloy spring 207. The inner wall of the sliding frame 208 is fixedly connected to the surface of the slide rod 206, and the surface of the sliding frame 208 is slidably connected to the inner wall of the regulator 205.

[0051] By setting the flow speed regulating mechanism 200, the flow speed of the coolant inside the central cooling mechanism 100 can be adjusted according to the temperature of the coolant, so that the battery cell mechanism 400 is kept within an appropriate range. When the coolant temperature is too high, the flow speed of the coolant is increased to increase the cooling efficiency and prevent the resistance of the conductor 402 from increasing. When the coolant temperature is too low, the flow speed of the coolant is reduced to prevent the battery cell mechanism 400 from being too low in temperature and affecting the mechanical properties of the conductor 402 and the first insulating layer 403. When the flow speed regulating mechanism 200 works in high-temperature coolant, the heat of the high-temperature coolant is transferred to the regulator 205 and the memory alloy spring 207. The memory alloy spring 207 stretches after being heated, driving the sliding frame 208 to slide inside the regulator 205. The sliding frame 208 drives the sliding rod 206 to extend out of the regulator 205, and the sliding rod 206 drives the push rod 204 retracts, the push rod 204 drives the connecting rod 203 and the baffle 202 to retract, and the baffle 202 retracts inwardly inside the support 201, reducing the obstruction to the coolant and increasing the flow rate of the coolant in the cross hollow tube 101. By increasing the flow rate, the heat absorption efficiency can be increased. When working in low-temperature coolant, the memory alloy spring 207 retracts and drives the slide bar 206 to retract into the regulator 205 through the slide frame 208, so that the baffle 202 extends outward to continue to block the coolant and reduce the flow rate of the coolant. By automatically adjusting the coolant flow rate, the optimal working temperature of the cable can be maintained under different working conditions, thereby improving the energy conversion efficiency of the entire system. The two flow rate regulating mechanisms 200 are oppositely installed to adjust the flow of the coolant in the liquid inlet chamber 108 and the liquid return chamber 106 in different directions.

[0052] It also includes a heat-conducting mechanism 300 . There are several heat-conducting mechanisms 300 installed on the surface of the central cooling mechanism 100 . The heat-conducting mechanism 300 includes a heat-conducting silica gel 301 . A heat-conducting paste 304 is fixedly connected to the surface of the heat-conducting silica gel 301 .

[0053] A mounting hole 303 is provided inside the thermal conductive silicone 301, and the surface of the first protective sleeve 401 is fixedly connected to the inner wall of the mounting hole 303. A graphene thermal conductive sheet 302 is fixedly connected inside the thermal conductive silicone 301. The graphene thermal conductive sheet 302 is an arc-shaped structure. A plurality of graphene fins 305 are fixedly connected to one side of the graphene thermal conductive sheet 302. The graphene fins 305 are located on the upper and lower sides of the mounting hole 303.

[0054] By setting up the heat conduction mechanism 300, it is convenient to efficiently conduct the heat of the battery cell mechanism 400 to the central cooling mechanism 100, thereby improving the heat dissipation efficiency. The graphene heat conductive sheet 302 and the graphene fin 305 have extremely high thermal conductivity, and can form an efficient heat conduction path inside the thermal conductive silicone 301, which is helpful to quickly transfer the heat from the battery cell mechanism 400 to the central cooling mechanism 100. The thermal conductive paste 304 is used to fill tiny gaps and uneven surfaces, further increase the thermal contact area, and reduce thermal resistance. The graphene fins 305 are evenly distributed inside the thermal conductive silicone 301, which ensures the thermal conductivity of the heat conduction mechanism 300, and the thermal conductive silicone The glue 301 itself has good flexibility and can protect the internal components from damage when the cable is bent. The addition of the thermal conductive silicone 301 and the graphene fins 305 not only enhances the thermal conductivity, but also improves the mechanical strength of the thermal conductive silicone 301, making it more durable. The softness of the thermal conductive silicone 301 enables it to adapt well to the shape of the battery cell mechanism 400 and ensure good contact. Through effective heat dissipation, the cable can be maintained within a suitable operating temperature range, thereby improving the energy conversion efficiency and reliability of the entire system, ensuring that the cable can maintain efficient and stable performance under various working conditions, thereby improving the overall performance and safety of electric vehicles.

[0055] The battery cell mechanism 400 is also included. The battery cell mechanism 400 is installed inside the heat conduction mechanism 300 . The battery cell mechanism 400 includes a first protective cover 401 .

[0056] The first shielding layer 404 is fixedly connected to the inner wall of the first protective sleeve 401, the first insulating layer 403 is fixedly connected to the inner wall of the first shielding layer 404, the conductor 402 is fixedly connected to the inner wall of the first insulating layer 403, the first protective sleeve 401 is made of polyurethane, the first shielding layer 404 is made of aluminum foil, the first insulating layer 403 is made of cross-linked polyethylene, and the conductor 402 is made of copper wire.

[0057] By setting up the battery cell mechanism 400, the conductor 402 is a copper wire, which can transmit the electric energy of the new energy vehicle. The first protective cover 401 uses polyurethane material, which is a material with excellent wear resistance and flexibility, and can protect the internal components from mechanical damage. The first shielding layer 404 is composed of aluminum foil, which can effectively reduce electromagnetic interference and ensure the normal operation of the cable in a complex electromagnetic environment. The first insulating layer 403 uses cross-linked polyethylene, which is a high-performance insulating material with excellent electrical insulation performance and high temperature resistance. The battery cell mechanism 400 is located inside the heat conduction mechanism 300, which can effectively transfer the heat generated by the battery cell to the central cooling mechanism 100, thereby achieving good thermal management.

[0058] The heat conducting device 300 further includes a protection mechanism 500 . The protection mechanism 500 is sleeved on the outside of the plurality of heat conducting mechanisms 300 . The protection mechanism 500 includes an outer sheath 501 and a second insulating layer 504 .

[0059] The inner wall of the outer sheath 501 is fixedly connected to the second shielding layer 502, the inner wall of the second shielding layer 502 is fixedly connected to the reinforcing layer 503, the inner wall of the reinforcing layer 503 is fixedly connected to the surface of the second insulating layer 504, the outer sheath 501 is made of chloroprene rubber, the second shielding layer 502 is made of semi-conductive paper, the reinforcing layer 503 is made of aramid braided fiber, and the second insulating layer 504 is made of PET.

[0060] By setting the protection mechanism 500, the outer sheath 501 is chloroprene rubber, which can provide the outermost layer of protection to prevent the cable from being subjected to external physical damage, such as scratches and extrusion. In addition, chloroprene rubber is soft and oil-resistant. Chloroprene rubber is a synthetic rubber. The basic unit of chloroprene rubber is chlorinated butadiene monomer. This molecular structure makes chloroprene rubber have a higher polarity, thereby enhancing its interaction with oils and other organic solvents and reducing the possibility of swelling. At the same time, this structure also gives chloroprene rubber good flexibility and elasticity. The chlorine atoms in chloroprene rubber make it highly resistant to oxidation and aging, which means that it can maintain a longer service life without losing its original performance. During the manufacturing process of chloroprene rubber, plasticizers are added to improve the softness and plasticity of the material, and through the vulcanization process, the chloroprene rubber forms a cross-linked network, which not only improves its mechanical strength and heat resistance. , and also maintains the necessary flexibility. The second shielding layer 502 is made of semi-conductive paper, which can further reduce electromagnetic interference and ensure that the cable works stably in a complex electromagnetic environment. The second insulating layer 504 is made of PET, which can provide additional electrical insulation performance to ensure the safe operation of the cable in a high-voltage environment. The reinforcement layer 503 is made of aramid braided fiber, which can improve the structural strength and bending performance of the cable, making it less susceptible to damage in a complex installation environment. The various layers of the protection mechanism 500 design together improve the durability of the cable and reduce failures caused by external damage, thereby extending the service life of the cable. At the same time, strengthening the protection performance of the cable can reduce the risk of electrical accidents such as short circuits and leakage. The design of the protection mechanism 500 enables the cable to better adapt to harsh working environments. By improving the protection performance of the cable, the number and cost of maintenance can be reduced, and the reliability and economy of the vehicle can be improved.

[0061] The inner wall of the second insulating layer 504 is fixedly connected with a strip support frame 600 and a fireproof filler 700. The strip support frame 600 is installed on the upper and lower sides and the left and right sides of the cross hollow tube 101. The fireproof filler 700 is installed on the surface of the thermal conductive paste 304. The material of the fireproof filler 700 is quartz powder.

[0062] By setting the strip support skeleton 600, the strip support skeleton 600 can increase the rigidity of the cable and reduce the deformation of the cable when it is bent or subjected to external force, thereby improving the stability of the overall structure, and can provide physical support for other components inside the cable to reduce damage caused by external pressure or bending. By setting the strip support skeleton 600, appropriate spacing between various components inside the cable can be ensured, which is conducive to the uniform distribution of heat, thereby improving the efficiency of the thermal management system. The strip support skeleton 600 can help maintain the circular cross-section of the cable, making it easier to install and wire.

[0063] By setting the fireproof filler 700, the fireproof filler 700 can significantly improve the fireproof performance of the cable, slow down the spread of fire, provide passengers with a longer escape time, and reduce the damage to the vehicle caused by fire. It can also maintain structural integrity at high temperatures, which helps to maintain the electrical performance of the cable under fire conditions and ensure the continuous operation of critical systems. The fireproof filler 700 can not only improve the fireproof performance of the cable, but also enhance the mechanical strength of the cable and reduce cable damage caused by high temperature. By improving the fireproof performance of the cable, the cable damage caused by fire can be reduced, thereby extending the service life of the cable.

Claims

1. A soft, oil-resistant double-layer high-voltage cable for new energy vehicles, characterized in that: include, A central cooling mechanism (100), the central cooling mechanism (100) comprising a cross hollow tube (101), a partition plate (104) being fixedly connected to the middle end of the inner cavity of the cross hollow tube (101); A flow velocity regulating mechanism (200), wherein the flow velocity regulating mechanism (200) is in a plurality and is installed on the left and right sides of the partition (104), and the installation direction of the flow velocity regulating mechanism (200) on the left side is opposite to that of the flow velocity regulating mechanism (200) on the right side; A heat-conducting mechanism (300), wherein the number of the heat-conducting mechanisms (300) is several and the heat-conducting mechanisms (300) are installed on the surface of the central cooling mechanism (100), wherein the heat-conducting mechanism (300) comprises a heat-conducting silica gel (301), and a heat-conducting paste (304) is fixedly connected to the surface of the heat-conducting silica gel (301); A battery cell mechanism (400), the battery cell mechanism (400) being installed inside the heat conducting mechanism (300), the battery cell mechanism (400) comprising a first protective sleeve (401); A protection mechanism (500), the protection mechanism (500) being sleeved on the outside of a plurality of heat conducting mechanisms (300), the protection mechanism (500) comprising an outer sheath (501) and a second insulating layer (504); The flow velocity regulating mechanism (200) comprises a support member (201) and a regulator (205), wherein the support member (201) and the regulator (205) are fixedly connected to the surface of the partition (104), a baffle plate (202) is rotatably connected to the support member (201), a connecting rod (203) is rotatably connected to one side of the baffle plate (202), one end of the connecting rod (203) is rotatably connected to a push rod (204), one end of the push rod (204) is fixedly connected to a sliding rod (206), and the sliding rod (206) passes through the regulator (205) and is movably connected to the inner wall thereof; A memory alloy spring (207) is fixedly connected to one side of the inner wall of the push rod (204); the memory alloy spring (207) is movably sleeved on the surface of the slide rod (206); a sliding frame (208) is mounted on one end of the memory alloy spring (207); the inner wall of the sliding frame (208) is fixedly connected to the surface of the slide rod (206); and the surface of the sliding frame (208) is slidably connected to the inner wall of the regulator (205).

2. The soft oil-resistant double-layer high-voltage cable for new energy vehicles according to claim 1, characterized in that: The front and rear ends of the cross hollow tube (101) are fixedly connected to a blocking block (103); two through holes (105) are provided on the back side of the blocking block (103); a coolant connector (800) is installed inside the through hole (105); a liquid inlet chamber (108) and a liquid return chamber (106) are provided on the left and right sides of the inner cavity of the cross hollow tube (101); the liquid inlet chamber (108) is located on the left side of the partition (104); the liquid return chamber (106) is located on the right side of the partition (104); and the coolant connector (800) is in communication with the liquid inlet chamber (108) and the liquid return chamber (106).

3. The soft oil-resistant double-layer high-voltage cable for new energy vehicles as claimed in claim 2, characterized in that: A flow hole (107) is provided on the front side of the surface of the partition plate (104), and the flow hole (107) is communicated with the liquid inlet chamber (108) and the liquid return chamber (106) respectively.

4. The soft oil-resistant double-layer high-voltage cable for new energy vehicles as claimed in claim 3, characterized in that: The surfaces of the cross hollow tube (101) and the blocking block (103) are both provided with arc-shaped grooves (102), and the surface of the thermal conductive paste (304) is fixedly connected to the inner wall of the arc-shaped groove (102).

5. The soft oil-resistant double-layer high-voltage cable for new energy vehicles according to claim 1, characterized in that: A mounting hole (303) is provided inside the thermally conductive silicone rubber (301); the surface of the first protective sleeve (401) is fixedly connected to the inner wall of the mounting hole (303); a graphene thermal conductive sheet (302) is fixedly connected inside the thermally conductive silicone rubber (301); the graphene thermal conductive sheet (302) is an arc-shaped structure; a plurality of graphene fins (305) are fixedly connected to one side of the graphene thermal conductive sheet (302); and the graphene fins (305) are located on the upper and lower sides of the mounting hole (303).

6. The soft oil-resistant double-layer high-voltage cable for new energy vehicles according to claim 1, characterized in that: The first shielding layer (404) is fixedly connected to the inner wall of the first protective sleeve (401), the first insulating layer (403) is fixedly connected to the inner wall of the first shielding layer (404), the conductor (402) is fixedly connected to the inner wall of the first insulating layer (403), the first protective sleeve (401) is made of polyurethane, the first shielding layer (404) is made of aluminum foil, the first insulating layer (403) is made of cross-linked polyethylene, and the conductor (402) is made of copper wire.

7. The soft oil-resistant double-layer high-voltage cable for new energy vehicles according to claim 1, characterized in that: The inner wall of the outer sheath (501) is fixedly connected to a second shielding layer (502), the inner wall of the second shielding layer (502) is fixedly connected to a reinforcement layer (503), the inner wall of the reinforcement layer (503) is fixedly connected to the surface of the second insulating layer (504), the outer sheath (501) is made of chloroprene rubber, the second shielding layer (502) is made of semi-conductive paper, the reinforcement layer (503) is made of aramid braided fiber, and the second insulating layer (504) is made of PET.

8. The soft oil-resistant double-layer high-voltage cable for new energy vehicles according to claim 1, characterized in that: The inner wall of the second insulating layer (504) is respectively fixedly connected with a strip support frame (600) and a fireproof filler (700); the strip support frame (600) is installed on the upper and lower sides and the left and right sides of the cross hollow tube (101); the fireproof filler (700) is installed on the surface of the thermal conductive paste (304); and the material of the fireproof filler (700) is quartz powder.

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