A high-voltage cable for new energy special vehicles

Abstract

The present invention relates to the technical field of high-voltage cables, and specifically provides a high-voltage cable for new energy special vehicles, including a connecting cable, which is used to connect electronic components inside the vehicle. The connecting cable has a connecting head, a copper nose is arranged on the connecting head, a spiral steel belt is connected to the copper nose, and a clamping sleeve is connected to the other end of the spiral steel belt. The copper nose is clamped to the connecting cable by the spiral steel belt and the clamping sleeve, and the spiral steel belt is tightened around the exposed conductor of the connecting cable by rotating the copper nose relative to the clamping sleeve, so that the connection effect between the copper nose and the connecting cable is better, and the clamping sleeve is deformed by other tools, thereby avoiding the relative rotation of the copper nose and the connecting sleeve, which causes the connection between the copper nose and the connecting cable to become loose, and can maintain a good clamping force even when clamped for a long time, and is not easy to slip.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage cables, and in particular to a high-voltage cable for new energy special vehicles. Background Art

[0002] High-voltage cables for new energy special vehicles are high-performance cables designed specifically for new energy vehicles (such as electric vehicles, hybrid vehicles) and other new energy special vehicles (such as electric buses, electric logistics vehicles, etc.). They are responsible for connecting the high-voltage battery packs, inverters, motors and charging systems in the vehicles, transmitting high-voltage electrical energy and ensuring the stable operation of the vehicle's electric drive system.

[0003] For example, Chinese patent CN111883953B discloses a connecting wire with a copper nose connector. The solution includes a connecting wire with an insulating layer, and several exposed thin copper wires are provided at both ends of the connecting wire. Copper noses are provided on the outside of the thin copper wires; the copper nose includes a connecting part and a wire fixing part, and a wire clamping rod is provided at one end of the wire fixing part away from the connecting part. When fixing, the wire clamping rod is inserted into the several thin copper wires; pressure plates are also provided on both sides of the wire fixing part. When fixing, the pressure plates are wrapped around the outside of the thin copper wires to clamp them from both sides of the wire clamping rod.

[0004] However, in the above solution, the copper wire is unevenly stressed, and during the long-term clamping process, the clamping effect of the copper nose on the wire core will be reduced, which may easily lead to slippage. Summary of the Invention

[0005] Based on this, it is necessary to provide a high-voltage cable for new energy special vehicles to address the current problems of uneven force on the copper wire and poor clamping effect of the copper nose.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A high-voltage cable for new energy special vehicles, comprising:

[0008] A connecting cable, wherein one end of the connecting cable has a connector, and the internal wires of the connecting cable at the connector are exposed;

[0009] A copper nose capable of being clamped onto the outer periphery of the exposed wire of the connector;

[0010] A clamping sleeve, one end of which is rotatably connected to the copper nose, and the clamping sleeve is sleeved on the outer periphery of the exposed wire of the connector;

[0011] A spiral steel belt is fixedly connected to one end of the copper nose connected to the clamping sleeve, and the end of the spiral steel belt away from the copper nose is connected to the peripheral wall of the clamping sleeve. The spiral steel belt is sleeved on the outer periphery of the exposed wire of the connector, and the copper nose can drive the spiral steel belt to tighten when it rotates around its own axis.

[0012] Furthermore, two semi-annular grooves are provided on the inner circumference of one end of the clamping sleeve, and a first interval is provided between the ends of the two semi-annular grooves. Two semi-annular convex rings are provided on the outer circumference of the copper nose, and the length of the semi-annular convex rings is greater than the length of the first interval. There is a second interval between the two semi-annular convex rings, and the two semi-annular convex rings slide in the two semi-annular grooves.

[0013] Furthermore, the first interval position on the clamping sleeve can be deformed. After the copper nose rotates to the preset position, the two semi-annular protrusions are located in the two semi-annular grooves, and the first interval position on the clamping sleeve is deformed to prevent the clamping sleeve from rotating.

[0014] Furthermore, the spiral steel strip is tapered as a whole, the small end of the spiral steel strip is connected to the copper nose, and the large end of the spiral steel strip is connected to the clamping sleeve.

[0015] Furthermore, a sliding rod is fixedly provided on one end of the spiral steel belt away from the copper nose, a sliding hole is opened on the peripheral wall of the clamping sleeve, the sliding hole extends along the radial direction of the clamping sleeve, and the sliding rod is slidably provided in the sliding hole.

[0016] Furthermore, a conductive rod is fixedly provided on one end of the copper nose close to the exposed wire of the connector, and the conductive rod can be inserted into the exposed wire of the connector.

[0017] Furthermore, the conductive rod is eccentrically arranged on one end of the copper nose close to the exposed wire of the connector.

[0018] Furthermore, the connecting cable has multiple layers, which are, from outside to inside, an outer sheath, an aluminum-plastic composite tape shielding layer, a tinned braided shielding layer, an insulating tape, a filling insulating layer, a conductor tape and a wire.

[0019] Furthermore, a connecting piece is provided on the copper nose, and the connecting piece is perpendicular to the surface of the copper nose.

[0020] Furthermore, a connecting hole is provided on the connecting piece.

[0021] The beneficial effects of the present invention are:

[0022] The present invention clamps the copper nose to the connecting cable through a spiral steel belt and a clamping sleeve, and tightens the spiral steel belt around the exposed outer periphery of the connecting cable by rotating the copper nose relative to the clamping sleeve, so that the connection effect between the copper nose and the connecting cable is better, and the clamping sleeve is deformed by other tools, thereby preventing the copper nose and the connecting sleeve from rotating relative to each other, which may cause the connection between the copper nose and the connecting cable to become loose, and can maintain good clamping force even when clamped for a long time, and is not easy to slip.

[0023] The present invention prevents the exposed wire from breaking between the copper nose and the connecting cable by arranging the spiral steel belt into a cone shape, with the small end of the cone-shaped spiral steel belt close to the copper nose and the large end of the spiral steel belt close to the connecting cable.

[0024] The present invention eccentrically arranges a conductive rod on the end face of the copper nose. The conductive rod revolves as the copper nose rotates. The conductive rod stirs the inside of the exposed wire, thereby disrupting the inside of the exposed wire and preventing the formation of a support area inside the bare wire. As a result, when the spiral steel belt tightens the exposed wire, the wire can be attached to the outer periphery of the conductive rod, thereby improving the electrical connection strength between the copper nose and the connecting cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a high-voltage cable for new energy special vehicles provided by one embodiment of the present invention;

[0026] Figure 2 An exploded view of a high-voltage cable for a new energy special vehicle provided by one embodiment of the present invention;

[0027] Figure 3 for Figure 2 A partial enlarged view of part A of a high-voltage cable for new energy special vehicles provided in one embodiment;

[0028] Figure 4 for Figure 2 A partial enlarged view of part B of the high-voltage cable for new energy special vehicles provided in the first embodiment;

[0029] Figure 5 for Figure 1 A left side view of a high-voltage cable for a new energy special vehicle provided in one embodiment;

[0030] Figure 6 for Figure 5 A cross-sectional view of a high-voltage cable for a new energy special vehicle along XX provided in an embodiment;

[0031] Figure 7 for Figure 6 A partially enlarged view of part C of the high-voltage cable for new energy special vehicles provided in one embodiment.

[0032] in:

[0033] 100, connecting cable; 110, outer sheath; 120, aluminum-plastic composite tape shield; 130, tinned braided shield; 140, insulation tape; 150, filling insulation layer; 160, conductor tape; 170, conductor;

[0034] 200, snap-on sleeve; 210, semi-annular slide groove; 220, first interval; 230, slide hole; 240, spiral steel belt; 250, slide rod;

[0035] 300, copper nose; 310, connecting piece; 320, connecting hole; 330, semi-annular raised ring; 340, second spacer; 350, conductive rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0038] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] Refer to the following Figure 1-Figure 7 To describe a high-voltage cable for new energy special vehicles provided by the present invention.

[0040] A high-voltage cable for new energy special vehicles is suitable for electrical connections of new energy vehicles, including a connecting cable 100. The connecting cable 100 can connect to various electronic components inside the new energy special vehicle to transmit signals or currents. A connector is provided on one end of the connecting cable 100. In order to facilitate the connection of other electronic components at the connector, the wire 170 inside the connecting cable 100 at the connector is exposed. A copper nose 300 is connected to the connector. The copper nose 300 is disc-shaped. A connecting piece 310 is vertically arranged on one end face of the copper nose 300. A connecting hole 320 is opened on the connecting piece 310. The connecting hole 320 is used to connect other wires 170 or to play a fixing role and be connected to other positions.

[0041] The copper nose 300 in the prior art is generally clamped on the exposed wire 170 by a clamping ring or a ferrule, but the clamping ring or the ferrule will become loose after long-term use after clamping, thereby causing the connection strength of the connecting cable 100 to decrease, affecting the transmission of signals or currents of the connecting cable 100.

[0042] Therefore, the present invention rotatably sets a clamping sleeve 200 on the copper nose 300, and one end of the clamping sleeve 200 is rotatably connected to the copper nose 300. The clamping sleeve 200 is sleeved on the outer periphery of the exposed wire 170. When the copper nose 300 rotates relative to the clamping sleeve 200, the clamping sleeve 200 can clamp the exposed wire 170, and after the clamping sleeve 200 clamps the exposed wire 170, the copper nose 300 can no longer rotate relative to the clamping sleeve 200, so that the copper nose 300 will not lose contact with the exposed wire 170, thereby avoiding affecting the model of the connecting cable 100 or the transmission of current.

[0043] Specifically, a spiral steel belt 240 is fixedly connected to one end of the copper nose 300 in this embodiment that is rotatably connected to the clamping sleeve 200, and the end of the spiral steel belt 240 away from the copper nose 300 is connected to the peripheral wall of the clamping sleeve 200. The spiral steel belt 240 is located inside the clamping sleeve 200 and on the outer periphery of the exposed wire 170. When the copper nose 300 rotates around its own axis, the clamping sleeve 200 is stationary at this time. Since one end of the spiral steel belt 240 is connected to the clamping sleeve 200 and the other end of the spiral steel belt 240 is connected to the copper nose 300, When the copper nose 300 rotates around its own axis, the spiral steel belt 240 can be tightened, so that the spiral steel belt 240 is tightly wrapped around the outer periphery of the exposed wire 170, so that the copper nose 300 is tightly connected to the outer periphery of the exposed wire 170 through the spiral steel belt 240 and the clamping sleeve 200. When the spiral steel belt 240 is tightened, the copper nose 300 is stopped from rotating, and the clamping sleeve 200 is squeezed by other tools so that the clamping sleeve 200 cannot rotate relative to the copper nose 300, that is, the copper nose 300 can no longer rotate, thereby preventing the spiral steel belt 240 from loosening.

[0044] It should be noted that using a spiral steel belt 240 to tighten the exposed wire 170 can make the force on the wire 170 more uniform, and a conductive coating is provided on the surface of the spiral steel belt 240, which can contact the exposed wire 170 to transmit current or signal to the copper nose 300.

[0045] More specifically, in order to realize the function that the copper nose 300 can no longer rotate relative to the clamping sleeve 200 after the clamping sleeve 200 is squeezed, two semi-annular grooves 210 are provided on the inner circumference of one end of the clamping sleeve 200. Figure 4 As shown, the two semi-annular chutes 210 are symmetrically arranged. The two semi-annular chutes 210 are not connected but have a first gap 220. Specifically, there is a first gap 220 between the two ends of the two semi-annular chutes 210. Two semi-annular convex rings 330 are arranged on the outer periphery of the copper nose 300. The two semi-annular convex rings 330 are symmetrically arranged on the copper nose 300, as shown in FIG. Figure 4 As shown, the two semi-annular protrusions 330 are not connected, but there is a second gap 340 between the two. When the two semi-annular protrusions slide in the two semi-annular grooves 210, the copper nose 300 can rotate around its own axis, and the length of the semi-annular protrusion 330 in this embodiment is greater than the length of the first gap 220, thereby avoiding the phenomenon of the two semi-annular protrusions 330 detaching when sliding in the two semi-annular grooves 210.

[0046] It should be noted that, in order to facilitate the rotational installation of the clamping sleeve 200 on the copper nose 300, the clamping sleeve 200 can be set as two semi-cylinders. When the two semi-cylinders are combined, the two semi-annular protrusions 330 are first aligned with the two semi-annular grooves 210, and then the two semi-cylinders are fixed after alignment, so that the two semi-annular protrusions 330 can be located in the two semi-annular grooves 210, and when the spiral steel belt 240 on the outer periphery of the bare wire 170 has been tightly wound around the outer periphery of the bare wire 170, the two semi-annular protrusions 330 are adjusted to be located in the two semi-annular grooves 210. At this time, the first interval 220 and the second interval 340 are in an aligned state, and other tools are used to squeeze the first interval 220 part of the clamping sleeve 200, so that the part is deformed. Specifically, the peripheral wall of the clamping sleeve 200 at this location is concave inward, and the concave is just located at the position of the second interval 340, so that the space at the position of the second interval 340 is occupied by the concave peripheral wall of the clamping sleeve 200, thereby limiting the movement of the two semi-annular convex rings 330 in the two semi-annular grooves 210, thereby limiting the relative rotation of the copper nose 300 and the clamping sleeve 200.

[0047] It can be understood that the copper nose 300 is restricted from rotating by squeezing the clamping sleeve 200 to deform. The force for clamping the exposed wire 170 in this embodiment is along the circumferential direction of the clamping sleeve 200, and restricts the relative rotation of the clamping sleeve 200 and the copper nose 300. Compared with the direct squeezing of the clamping sleeve 200 in the prior art, the force for clamping the exposed wire 170 after the clamping sleeve 200 is deformed is along the radial direction of the clamping sleeve 200, and the restriction of the clamping sleeve 200 in the radial direction is only its own deformation, without other restrictions. Therefore, the method of clamping the exposed wire 170 in this embodiment is better than the method of clamping the exposed wire 170 only by squeezing deformation in the prior art, and the contact between the exposed wire 170 and the copper nose 300 in this embodiment is more sufficient, thereby improving the transmission efficiency of signals or currents.

[0048] In a further embodiment, the overall shape of the spiral steel belt 240 of the present invention is not cylindrical, but conical. The small end of the spiral steel belt 240 is fixedly connected to the copper nose 300, and the large end of the spiral steel belt 240 is away from the copper nose 300 and connected to the clamping sleeve 200. The tapered spiral steel belt 240 has different forces when wound around the bare wire 170 at different diameter positions. The small end of the spiral steel belt 240 has the greatest force on the bare wire 170, so that the bare wire 170 at this position is connected more tightly, while the large end of the spiral steel belt 240 has a smaller force on the bare wire 170, so that the outer periphery of the bare wire 170 is subjected to a gradually increasing force, and the bare wire 170 near the copper nose 300 has the greatest force. When the copper nose 300 and the connecting cable 100 are subjected to tension, It is able to make the copper nose 300 and the connecting cable 100 move away from each other. If the winding strength of the spiral steel belt 240 on the outer periphery of the exposed wire 170 is the same, the outer periphery of the exposed wire 170 will be subjected to a large tensile force, which will cause the part of the spiral steel belt 240 that is wrapped to break. The winding strength of the spiral steel belt 240 on the outer periphery of the exposed wire 170 gradually decreases from close to the copper nose 300 to close to the connecting cable 100, so that the spiral steel belt 240 can play a buffering role when the copper nose 300 and the connecting cable 100 are subjected to a large force and move away from each other.

[0049] It should be noted that since the spiral steel belt 240 near the copper nose 300 has the greatest winding force on the exposed wire 170, and the closer to the connecting cable 100 the spiral steel belt 240 is to the exposed wire 170, the winding force gradually decreases. Therefore, when the copper nose 300 and the connecting cable 100 are away from each other, the spiral steel belt 240 near one end of the copper nose 300 is equivalent to being fixedly connected to the exposed wire 170, while the spiral steel belt 240 near the connecting cable 100 can move axially relative to the exposed wire 170, thereby playing a buffering role.

[0050] Specifically, to achieve the connection between the clamping sleeve 200 and the spiral steel belt 240, as shown in FIG. Figure 4 and Figure 7 As shown, a slide rod 250 is fixedly provided on the end of the spiral steel belt 240 away from the copper nose 300, and a slide hole 230 is opened on the peripheral wall of the clamping sleeve 200. The slide hole 230 extends along the radial direction of the clamping sleeve 200, and the slide rod 250 is slidably inserted into the slide hole 230. When the copper nose 300 rotates around its own axis, one end of the spiral steel belt 240 is driven to rotate by the copper nose 300, and the other end is connected to the clamping sleeve 200 through the slide rod 250, so that the spiral steel belt 240 can be tightened and then tightly wrapped around the outer periphery of the exposed wire 170 to connect the wire 170.

[0051] In a further embodiment, in order to improve the conductivity between the copper nose 300 and the connecting cable 100, a conductive rod 350 is fixedly provided on one end face of the copper nose 300 close to the connecting cable 100. The conductive rod 350 is perpendicular to the end face of the copper nose 300. The conductive rod 350 is inserted into the exposed wire 170 when the copper nose 300 and the exposed wire 170 are connected, so that when the spiral steel belt 240 tightens the exposed wire 170, the exposed wire 170 can be tightly attached to the outer periphery of the conductive rod 350, thereby improving the electrical connection strength between the exposed wire 170 and the copper nose 300.

[0052] In a further embodiment, the conductive rod 350 of the present invention is eccentrically arranged on the end face of the copper nose 300, and the conductive rod 350 revolves along with the rotation of the copper nose 300. When the conductive rod 350 revolves, it can stir the inside of the exposed wire 170, thereby breaking up the inside of the exposed wire 170, avoiding the formation of a support area inside the exposed wire 170 when the spiral steel belt 240 is tightened. If a support area is formed, the conductive rod 350 will not be able to evenly contact the exposed wire 170, thereby affecting the electrical connection between the conductive rod 350 and the wire 170. The support area is formed because the cylindrical exposed wires 170 are evenly arranged, and the spiral steel belt 240 on the outer periphery of the exposed wires 170 evenly applies pressure to the wires 170, so a support area is easily formed on the inner periphery of the exposed wires 170, just like an egg shell is not easy to break when uniform pressure is applied, but when the shell is subjected to uneven force, the support area will be broken. The eccentric setting of the conductive rod 350 in this embodiment can disrupt the evenly distributed structure inside the exposed wires 170, thereby avoiding the formation of a support area. When the spiral steel belt 240 is tightened, the exposed wires 170 are evenly contacted with the conductive rod 350, thereby improving the electrical connection strength between the wires 170 and the conductive rod 350.

[0053] Specifically, the connecting cable 100 of the present invention has multiple layers, such as Figure 3As shown, from the outside to the inside are the outer skin 110, the aluminum-plastic composite tape shielding layer 120, the tinned braided shielding layer 130, the insulating tape 140, the filling insulating layer 150, the conductor tape 160 and the wire 170, wherein the outer skin 110 is usually made of a waterproof, corrosion-resistant and high-temperature resistant material, such as polyethylene (PE) or polyvinyl chloride (PVC), and its function is to protect the internal structure from the influence of the external environment, prevent physical damage, chemical corrosion and waterproofing, etc., and increase the durability and environmental resistance of the connecting cable 100; the main function of the aluminum-plastic composite tape shielding layer 120 is to prevent electromagnetic interference (EMI) and radio frequency interference (RFI). The connecting cable 100 will generate an electromagnetic field when working. This layer of shielding tape can effectively reduce interference and prevent signal leakage or external electromagnetic waves from interfering with the power system; the tinned braided shielding layer 130 is mainly to enhance the electromagnetic shielding effect and improve the anti-interference ability. The tinned copper wire helps to improve the resistance Corrosion and conductivity, this shielding layer ensures higher electrical safety, especially in high-voltage environments to prevent the influence of electric and magnetic fields; the insulating tape 140 is usually used to isolate the conductor from other layers to prevent current leakage and arc generation. It can also ensure that there is no short circuit between the conductors and maintain the stability of power transmission; the role of the filling insulation layer 150 is to fill the gaps, increase the tightness of the structure, ensure the integrity of the shape of the connecting cable 100, and enhance the overall mechanical strength to avoid loose cable core structure. It can also further enhance the protection against the external environment; the conductor tape 160 helps to effectively isolate the conductor inside the connecting cable 100 from other insulating layers. At the same time, it also plays a protective role, reduces mechanical damage, and prevents corrosion and oxidation of the conductor; the wire 170 is the main conductive part of the connecting cable 100. Its high conductivity can ensure the efficient transmission of power signals, and it has strong tensile strength and good corrosion resistance.

[0054] The specific installation process of a high-voltage cable for new energy special vehicles provided by the present invention is described in combination with the above embodiments:

[0055] First, the clamping sleeve 200 is sleeved on the outer periphery of the spiral steel belt 240, and the sliding rod 250 on the spiral steel belt 240 is inserted into the sliding hole 230 of the clamping sleeve 200. Then, the spiral steel belt 240 is passed through the outer periphery of the exposed wire 170, and the conductive rod 350 on the copper nose 300 is inserted into the inside of the exposed wire 170. Finally, the copper nose 300 is rotated so that the copper nose 300 rotates relative to the clamping sleeve 200. The copper nose 300 drives one end of the spiral steel belt 240 to rotate, and the other end of the spiral steel belt 240 is connected to the clamping sleeve 200 through the sliding rod 250 and the sliding hole 230. When the copper nose 300 rotates, the conductive rod 350 fixedly connected to the copper nose 300 moves and rotates with the copper nose 300. The conductive rod 350 can stir the inside of the exposed wire 170 and disrupt the internal The distribution of the wires 170, and the spiral steel belt 240 is continuously tightened, thereby wrapping the exposed wires 170 so that the exposed wires 170 are tightly fitted to the outer periphery of the conductive rod 350. After the spiral steel belt 240 is tightened, the rotation of the copper nose 300 is stopped, and the two semi-annular protrusions 330 on the copper nose 300 are adjusted to be located in the two semi-annular grooves 210 on the clamping sleeve 200. Finally, other tools are used to squeeze and deform the two first intervals 220 on the clamping sleeve 200, so that the two first intervals 220 are concave inward, thereby limiting the rotation of the two semi-annular protrusions 330, and then limiting the relative rotation of the copper nose 300 and the clamping sleeve 200, so that the spiral steel belt 240 cannot be detached from the winding of the exposed wire 170, thereby improving the connection strength between the copper nose 300 and the connecting cable 100.

[0056] Moreover, since the spiral steel belt 240 is tapered as a whole, and the small end of the spiral steel belt 240 is close to the copper nose 300, and the large end of the spiral steel belt 240 is close to the connecting cable 100, when the spiral steel belt 240 is tightened, the winding force of the spiral steel belt 240 close to the end of the copper nose 300 is greater, while the winding force of the spiral steel belt 240 close to the end of the connecting cable 100 gradually decreases, so that when the copper nose 300 and the connecting cable 100 move away from each other, the tapered spiral steel belt 240 can act as a buffer to prevent the exposed wire 170 from breaking.

[0057] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A high-voltage cable for new energy special vehicles, characterized in that: include: A connecting cable, wherein one end of the connecting cable has a connector, and internal wires of the connecting cable are exposed at the connector; The copper nose is disc-shaped and can be clamped onto the outer periphery of the exposed wire of the connector; A clamping sleeve, one end of which is rotated to connect to the copper nose, and the clamping sleeve is sleeved on the outer periphery of the exposed wire of the connector; A spiral steel band is fixedly connected to one end of the copper nose connected to the clamping sleeve, and the end of the spiral steel band away from the copper nose is connected to the peripheral wall of the clamping sleeve. The spiral steel band is sleeved on the outer periphery of the exposed wire of the connector, and the copper nose can drive the spiral steel band to tighten by rotating around its own axis; two semi-annular sliding grooves are provided on the inner periphery of one end of the clamping sleeve, and a first interval is provided between the ends of the two semi-annular sliding grooves, and two semi-annular convex rings are provided on the outer periphery of the copper nose, and the length of the semi-annular convex ring is greater than the length of the first interval, and a second interval is provided between the two semi-annular convex rings, and the two semi-annular convex rings slide in the two semi-annular sliding grooves, and the position of the first interval on the clamping sleeve can be deformed, and the copper nose rotates After moving to the preset position, the two semi-annular convex rings are located in the two semi-annular sliding grooves, and the first interval position on the clamping sleeve is deformed to prevent the clamping sleeve from rotating; the spiral steel belt is cone-shaped as a whole, the small end of the spiral steel belt is connected to the copper nose, and the large end of the spiral steel belt is connected to the clamping sleeve. A sliding rod is fixedly provided on the end of the spiral steel belt away from the copper nose, and a sliding hole is provided on the peripheral wall of the clamping sleeve. The sliding hole extends radially along the clamping sleeve, and the sliding rod is slidably set in the sliding hole; a conductive rod is fixedly provided on the end of the copper nose close to the exposed wire of the connector, and the conductive rod can be inserted into the exposed wire of the connector, and the conductive rod is eccentrically set on the end of the copper nose close to the exposed wire of the connector.

2. The high-voltage cable for new energy special vehicles according to claim 1, characterized in that: The connecting cable has multiple layers, which are, from outside to inside, an outer sheath, an aluminum-plastic composite tape shielding layer, a tinned braided shielding layer, an insulating tape, a filling insulating layer, a conductor tape and a wire.

3. The high-voltage cable for new energy special vehicles according to claim 1, characterized in that: The copper nose is provided with a connecting piece, and the connecting piece is perpendicular to the surface of the copper nose.

4. The high-voltage cable for new energy special vehicles according to claim 3, characterized in that: The connecting piece is provided with a connecting hole.

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