Vehicle cable

Abstract

The utility model relates to the technical field of cables, and discloses a vehicle cable, which comprises a heat dissipation layer, a plurality of wire cores arranged in the heat dissipation layer and an outer sheath coated outside the heat dissipation layer, the heat dissipation layer comprises a plurality of heat dissipation frames, placing grooves are arranged in the heat dissipation frames, the plurality of wire cores are respectively arranged in the placing grooves of the corresponding heat dissipation frames, and the outer sheath is arranged in the placing grooves of the corresponding heat dissipation frames. The two sides of the heat dissipation frame are each provided with a plurality of heat dissipation fins, the heat dissipation fins are evenly distributed in the axial direction of the cable, and the heat dissipation fins are used for transmitting heat in the center of the cable outwards. According to the utility model, the problems that the inside of the cable is easy to damage and the service life is short due to the fact that the heat at the wire cores is difficult to diffuse timely and the heat dissipation effect is poor in the existing cable can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a vehicle cable. Background Art

[0002] Automotive cables are a special type of cable used to transmit power, signals and data, connecting various parts of the car, such as the engine, controller, air conditioner, audio, brake system, etc., to achieve the coordinated work of various parts of the car. Automotive cables need to have high insulation, wear resistance, anti-interference and fire resistance to ensure the safety performance of the car.

[0003] At present, for automotive cables used for power transmission, when the power of the cable is too large, a large amount of heat will be generated, especially for power transmission cables of new energy vehicles, which will cause a large amount of heat to accumulate around the core, thus affecting the safety of the cable core. However, it is difficult for current cables to dissipate the heat at the core in time, and the heat dissipation effect is poor, which makes the cable easy to be damaged and has a short service life. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a vehicle cable to solve the problem that the current cable is difficult to dissipate the heat at the core in time, the heat dissipation effect is poor, which makes the cable easy to be damaged and has a short service life.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A vehicle cable comprises a heat dissipation layer, a plurality of wire cores arranged in the heat dissipation layer and an outer sheath covered outside the heat dissipation layer, wherein the heat dissipation layer comprises a plurality of heat dissipation frames, wherein placement grooves are arranged in the heat dissipation frames, and the plurality of wire cores are respectively arranged in the placement grooves of the corresponding heat dissipation frames, and a plurality of heat dissipation fins are arranged on both sides of the heat dissipation frames, wherein the plurality of heat dissipation fins are evenly distributed along the axial direction of the cable, and the heat dissipation fins are used to transfer the heat in the center of the cable to the outside.

[0007] Furthermore, a heat insulation layer is provided between adjacent heat dissipation frames, and the heat insulation layer is a mica sheet.

[0008] Furthermore, a reinforcing core is arranged at the center of the heat dissipation layer, and an elastic layer is coated on the outside of the reinforcing core.

[0009] Furthermore, a sealing layer is arranged outside the placement groove, and the sealing layer and the heat dissipation frame are both made of thermally conductive silicone.

[0010] Furthermore, a braided layer is arranged outside the heat dissipation layer, and the braided layer is a metal braided mesh with a braiding density of 85-87.5%.

[0011] Furthermore, a waterproof layer is arranged outside the braided layer, and the waterproof layer is a plurality of polyester films, and the plurality of polyester films are tightly wound.

[0012] Furthermore, a fireproof layer is arranged outside the waterproof layer, and the fireproof layer is a glass fiber fireproof tape.

[0013] Furthermore, the wire core is coated with an insulating layer.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model provides a heat sink and a heat sink. The heat sink absorbs the heat emitted by the core in the slot, and the heat sink transfers the heat on the heat sink near the center of the cable to the outside, thereby preventing the heat generated by the core from accumulating around the core and improving the service life of the core.

[0016] 2. The utility model provides a heat insulation layer between adjacent heat dissipation frames to prevent the heat generated by the wire core from being transferred to adjacent areas and affecting the normal operation of the adjacent wire cores.

[0017] 3. By setting a reinforcing core, the tensile strength of the cable can be effectively enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a vehicle cable of the utility model;

[0019] Figure 2 This is a schematic diagram of the split structure of the heat dissipation layer in a vehicle cable of the utility model;

[0020] Among them, 1. wire core; 11. insulation layer; 21. heat sink; 211. placement groove; 212. heat sink; 22. sealing layer; 3. outer sheath; 4. thermal insulation layer; 5. reinforcement core; 51. elastic layer; 6. braided layer; 7. waterproof layer; 8. fireproof layer. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0022] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] like Figure 1-Figure 2 As shown, a vehicle cable of the utility model comprises a heat dissipation layer, a plurality of wire cores 1 arranged in the heat dissipation layer, and an outer sheath 3 coated outside the heat dissipation layer. The outer sheath 3 is used to quickly absorb the heat dissipated by the wire core 1 through the heat dissipation layer and transfer it outward, so as to avoid the heat generated by the wire core 1 from accumulating around the wire core 1, thereby improving the service life of the wire core 1. In this embodiment, the wire core 1 is coated with an insulating layer 11, and the insulating layer 11 is made of polyolefin insulating material. The outer sheath 3 is a conventional rubber material in the prior art. Specifically:

[0024] The heat dissipation layer includes a plurality of heat dissipation racks 21. In this embodiment, four heat dissipation racks 21 are provided. A placement slot 211 is provided in each of the four heat dissipation racks 21. Four wire cores 1 are provided. The four wire cores 1 are respectively arranged in the placement slots 211 of the corresponding heat dissipation racks 21. By arranging the four wire cores 1 separately, the heat interference between the wire cores 1 is avoided. In this embodiment, a plurality of heat dissipation fins 212 are provided on both sides of the heat dissipation rack 21. The heat dissipation fins 212 are light metal sheets with excellent thermal conductivity, such as copper sheets, aluminum sheets, etc. The plurality of heat dissipation fins 212 are evenly distributed along the axial direction of the cable, and the heat from the center of the cable is transferred outward through the heat dissipation fins 212.

[0025] In this embodiment, a heat insulation layer 4 is provided between adjacent heat dissipation frames 21 . The heat insulation layer 4 is a mica sheet, which can further prevent the heat generated by the wire core 1 from being transferred to adjacent areas and affecting the normal operation of the adjacent wire core 1 .

[0026] In this embodiment, a reinforcing core 5 is arranged in the center of the heat dissipation layer, which can effectively enhance the tensile strength of the cable. The reinforcing core 5 is coated with an elastic layer 51, which is preferably made of rubber material and can absorb part of the pressure to improve the compressive strength of the cable.

[0027] In this embodiment, a sealing layer 22 is provided outside the placement groove 211, and the sealing layer 22 is used to seal the wire core 1 in the placement groove 211 to prevent the wire core 1 from moving randomly. The sealing layer 22 and the heat dissipation frame 21 are both thermally conductive silicone to improve the heat dissipation effect of the heat dissipation layer.

[0028] In this embodiment, a braided layer 6 is provided outside the heat dissipation layer. The braided layer 6 is a metal braided mesh with a braiding density of 85-87.5%, which can provide a shielding function and further transfer heat to the outside.

[0029] In this embodiment, a waterproof layer 7 is provided outside the braided layer 6. The waterproof layer 7 is a plurality of polyester films. The plurality of polyester films are tightly wound to improve the waterproof performance of the cable.

[0030] In this embodiment, a fireproof layer 8 is provided outside the waterproof layer 7. The fireproof layer 8 is a glass fiber fireproof tape to improve the fireproof performance of the cable.

[0031] The heat dissipation principle of the utility model is as follows: the heat emitted by the core 1 is diffused to the heat dissipation frame 21 and the blocking layer 22 through the insulating layer 11 in turn, effectively preventing the heat generated by the core 1 from accumulating around the core 1. The heat dissipation frame 21 transfers the heat from the center of the cable to the outside through the heat sink 212, thereby increasing the heat dissipation speed. The heat of the heat dissipation layer is diffused to the outside of the cable through the braided layer 6, the waterproof layer 7, the fireproof layer 8 and the outer sheath 3 in turn.

[0032] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A vehicle cable, characterized in that: It includes a heat dissipation layer, a plurality of wire cores arranged in the heat dissipation layer and an outer sheath covered outside the heat dissipation layer. The heat dissipation layer includes a plurality of heat dissipation frames, the heat dissipation frames are provided with placement grooves, and the plurality of wire cores are respectively arranged in the placement grooves of the corresponding heat dissipation frames. A plurality of heat dissipation fins are provided on both sides of the heat dissipation frames. The plurality of heat dissipation fins are evenly distributed along the axial direction of the cable, and the heat dissipation fins are used to transfer the heat in the center of the cable to the outside.

2. A vehicle cable according to claim 1, characterized in that: A heat insulation layer is arranged between adjacent heat dissipation frames, and the heat insulation layer is a mica sheet.

3. A vehicle cable according to claim 1, characterized in that: A reinforcing core is arranged at the center of the heat dissipation layer, and an elastic layer is coated on the outer surface of the reinforcing core.

4. A vehicle cable according to claim 1, characterized in that: A sealing layer is arranged outside the placement groove, and both the sealing layer and the heat dissipation frame are made of thermal conductive silica gel.

5. The vehicle cable according to claim 1, characterized in that: A braided layer is arranged outside the heat dissipation layer. The braided layer is a metal braided mesh with a braiding density of 85-87.5%.

6. A vehicle cable according to claim 5, characterized in that: A waterproof layer is arranged outside the braided layer. The waterproof layer is a plurality of polyester films, and the plurality of polyester films are tightly wound.

7. A vehicle cable according to claim 6, characterized in that: A fireproof layer is arranged outside the waterproof layer, and the fireproof layer is a glass fiber fireproof tape.

8. The vehicle cable according to claim 1, characterized in that: The wire core is covered with an insulating layer.

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