Automobile wire harness and automobile

Abstract

The utility model discloses an automobile wire harness and an automobile, and belongs to the technical field of wire harnesses, and the automobile wire harness comprises a wire core assembly, an isolation layer and an elastic sheath layer. The wire core assembly comprises a plurality of wire cores. The isolation layer wraps the periphery of the wire core assembly. The elastic sheath layer wraps the periphery of the isolation layer, and the elastic sheath layer can generate elastic deformation to extrude the isolation layer and the wire core assembly, so that the plurality of wire cores are in contact with each other. And the elastic sheath layer has a good wear-resistant effect, can restore to the original shape after being stressed, and is not easy to deform, so that the automobile wire harness can resist long-time friction and extrusion without being damaged, and the service life of the automobile wire harness is prolonged. In addition, the elastic sheath layer has good sound absorption and sound insulation effects, and noise transmission can be reduced. By absorbing and blocking vibration and sound waves generated from the inside, transmission and diffusion of noise are effectively reduced, and more comfortable use experience is provided.

Description

Technical Field

[0001] The present application belongs to the technical field of wiring harnesses, and in particular relates to an automobile wiring harness and an automobile. Background Art

[0002] With the rapid development of automobile functions and the improvement of customer requirements in recent years, there are more and more requirements for automobile supporting functions. In the design of wing doors, the wire branch wrapping method needs to meet the requirements of the special wing door structure and movement law. Due to its unique opening method and construction principle, the wing door requires the automobile wires to be able to flexibly follow the movement of the wing door while maintaining stability and safety. This means that the wire wrapping structure needs to have good wear resistance and be able to withstand long-term friction and extrusion without damage. In addition, the opening and closing process of the wing door often generates noise, which has a negative impact on driving comfort. Therefore, the wire wrapping structure also needs to have good noise reduction performance, which can effectively reduce the noise generated by the contact between the wire and the wing door. In order to match the design of the wing door and the harsh environmental requirements, the existing wire branch wrapping method uses a sleeve, which cannot meet the performance requirements of wear resistance and noise reduction at the same time. Utility Model Content

[0003] Purpose of the utility model: The embodiments of the present application provide an automotive wiring harness and an automobile, aiming to solve the technical problem that the wire branch wrapping method cannot simultaneously meet the performance requirements of wear resistance and noise reduction.

[0004] Technical solution: The embodiment of the present application provides an automotive wiring harness, comprising:

[0005] A wire core assembly, the wire core assembly comprising a plurality of wire cores,

[0006] An isolation layer, the isolation layer is coated on the outer periphery of the wire core assembly;

[0007] An elastic sheath layer is coated on the outer periphery of the isolation layer, and the elastic sheath layer can produce elastic deformation to squeeze the isolation layer and the wire core assembly so that the multiple wire cores are in contact with each other.

[0008] In some embodiments, the wire core assembly further comprises:

[0009] The wrapping layer is wound around the outer circumference of at least two of the wire cores, and the outer surface of the wrapping layer is in contact with at least one of the wire cores.

[0010] In some embodiments, the isolation layer comprises a plurality of polymer fibers, and the plurality of polymer fibers are woven to form the isolation layer.

[0011] In some embodiments, the elastic modulus of the elastic sheath layer is greater than 10 MPa.

[0012] In some embodiments, the elastic sheath layer is made of a material including thermoplastic polyurethane.

[0013] In some embodiments, the thickness of the elastic sheath layer is 0.64 mm-0.8 mm.

[0014] In some embodiments, the outer diameter of the elastic sheath layer is 6.6-8 mm.

[0015] In some embodiments, the wire core includes a conductor and an insulating layer, wherein the insulating layer is coated on the outer circumference of the conductor, and the insulating layer of each of the wire cores is in contact with the insulating layer of at least another of the wire cores.

[0016] In some embodiments, a plurality of the cores are connected by spiral winding.

[0017] In some embodiments, the wire core assembly includes a connection end, and the connection end is exposed outside the isolation layer and the elastic sheath layer;

[0018] The automobile wiring harness further comprises a terminal and a plurality of positioning members, wherein the terminal is connected to the connection end, and the positioning members are sleeved on the outer periphery of the elastic sheath layer.

[0019] Correspondingly, an embodiment of the present application provides a car, comprising the above-mentioned car wiring harness.

[0020] Beneficial effects: The automotive wiring harness of the embodiment of the present application includes a wire core assembly, an isolation layer and an elastic sheath layer. The wire core assembly includes a plurality of wire cores. The isolation layer is coated on the outer periphery of the wire core assembly. The elastic sheath layer is coated on the outer periphery of the isolation layer, and the elastic sheath layer can produce elastic deformation to squeeze the isolation layer and the wire core assembly so that the plurality of wire cores contact each other. The elastic sheath layer has good wear resistance, and can restore to its original shape after being subjected to force, and is not easy to deform, so that it can resist long-term friction and extrusion without causing damage, thereby extending the service life of the automotive wiring harness. In addition, the elastic sheath layer has good sound absorption and sound insulation effects, and can reduce the transmission of noise. By absorbing and blocking vibrations and sound waves generated from the inside, the transmission and diffusion of noise are effectively reduced, providing a more comfortable use experience.

[0021] The automobile of the embodiment of the present application includes the above-mentioned automobile wiring harness, so the automobile can have all the technical features and beneficial effects of the above-mentioned automobile wiring harness, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a cross-sectional view of an automotive wiring harness according to an embodiment of the present application;

[0024] Figure 2 is a cross-sectional view of another automotive wiring harness according to an embodiment of the present application;

[0025] Figure 3 It is a structural schematic diagram of an automobile wiring harness according to an embodiment of the present application;

[0026] Figure 4 It is a flow chart of a method for producing an automobile wiring harness according to an embodiment of the present application.

[0027] Figure numerals: 1, wire core assembly; 2, isolation layer; 3, elastic sheath layer; 4, wrapping layer; 5, positioning piece; 10, wire core; 100, conductor; 101, insulation layer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined. In the description of this application, "vertical" means completely vertical at 90° or almost completely vertical, for example, an angle within the range of 80° to 100° is considered vertical. Similarly, "parallel" means completely parallel or almost completely parallel, for example, an angle within 10° of completely parallel is considered parallel.

[0030] With the rapid development of automobile functions and the improvement of customer requirements in recent years, there are more and more requirements for automobile supporting functions. In the design of wing doors, the wire branch wrapping method needs to meet the requirements of the special wing door structure and movement law. Due to its unique opening method and construction principle, the wing door requires the automobile wires to be able to flexibly follow the movement of the wing door while maintaining stability and safety. This means that the wire wrapping structure needs to have good wear resistance and be able to withstand long-term friction and extrusion without damage. In addition, the opening and closing process of the wing door often generates noise, which has a negative impact on driving comfort. Therefore, the wire wrapping structure also needs to have good noise reduction performance, which can effectively reduce the noise generated by the contact between the wire and the wing door. In order to match the design of the wing door and the harsh environmental requirements, the existing wire branch wrapping method uses a sleeve, which cannot meet the performance requirements of wear resistance and noise reduction at the same time.

[0031] In view of this, an embodiment of the present application provides an automotive wiring harness, which includes a core assembly and an elastic sheath layer. The core assembly includes multiple cores. An isolation layer is coated on the outer periphery of the core assembly. The elastic sheath layer is coated on the outer periphery of the isolation layer, and the elastic sheath layer can produce elastic deformation to squeeze the isolation layer and the core assembly so that multiple cores are in contact with each other. The elastic sheath layer has good wear resistance, and can return to its original state after being subjected to force, and is not easy to deform, so that it can resist long-term friction and extrusion without damage, thereby extending the service life of the automotive wiring harness. In addition, the elastic sheath layer has good sound absorption and sound insulation effects, and can reduce the transmission of noise. By absorbing and blocking vibrations and sound waves generated from the inside, the transmission and diffusion of noise are effectively reduced, providing a more comfortable use experience.

[0032] The following is a detailed description of the automobile wiring harness and automobile of the present application in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0033] Figure 1 It is a cross-sectional view of an automobile wiring harness according to an embodiment of the present application. Figure 2 It is a cross-sectional view of another automotive wiring harness according to an embodiment of the present application. Figure 3 Schematic diagram of the structure of an automotive wiring harness according to an embodiment of the present application. Figures 1 to 3, an embodiment of the present application provides an automotive wiring harness, including a core assembly 1, an isolation layer 2 and an elastic sheath layer 3. The core assembly 1 includes a plurality of cores 10. The core assembly also includes a plurality of insulating layers 101, and the isolation layer 2 is coated on the outer periphery of the core assembly 1. The elastic sheath layer 3 is coated on the outer periphery of the isolation layer 2, and the elastic sheath layer 3 can produce elastic deformation to squeeze the isolation layer 2 and the core assembly 1, so that the plurality of cores 10 are in contact with each other. The elastic sheath layer 3 has good wear resistance, and can restore to its original state after being subjected to force, and is not easy to deform, so that it can resist long-term friction and extrusion without damage, thereby extending the service life of the automotive wiring harness. In addition, the elastic sheath layer 3 has good sound absorption and sound insulation effects, and can reduce the transmission of noise. By absorbing and blocking vibrations and sound waves generated from the inside, the transmission and diffusion of noise are effectively reduced, providing a more comfortable use experience.

[0034] In some embodiments, the elastic modulus of the elastic sheath layer 3 is above 10Mpa, so the elastic sheath layer 3 has good elasticity and ductility, and can produce elastic deformation to squeeze the isolation layer 2 and the wire core assembly 1. Specifically, the preparation material of the elastic sheath layer 3 includes thermoplastic polyurethane (TPU). TPU material is selected and extruded to form the elastic sheath layer 3 by extrusion process. The TPU material has excellent physical strength, including high tension, tensile strength and wear resistance, and can maintain good surface quality during long-term use. In addition, TPU has good elasticity, can restore its original shape after being stressed, and is not easy to deform, so that it can resist long-term friction and extrusion without damage, thereby extending the service life of the automotive wiring harness. TPU also has excellent bending performance, and can maintain stable performance in curves or bends, so that it can adapt to the wiring harness layout space in the car. In addition, TPU material has high tolerance to oils and chemicals, can maintain stable performance when in contact with these substances, and is not easily corroded or damaged. By using TPU material combined with extrusion technology, multiple wire cores 10 are tightly integrated together through extrusion molding to form an integrated structure, thereby reducing the wire diameter of the automobile wiring harness and reducing the space occupied by the automobile wiring harness. Figure 1 and Figure 2In the embodiment shown, the thickness of the elastic sheath layer 3 is 0.64-0.8 mm, specifically, the thickness of the elastic sheath layer 3 can be any one of 0.64 mm, 0.65 mm, 0.66 mm, 0.67 mm, 0.68 mm, 0.69 mm, 0.70 mm, 0.71 mm, 0.72 mm, 0.73 mm, 0.74 mm, 0.75 mm, 0.76 mm, 0.77 mm, 0.78 mm, 0.79 mm, 0.80 mm or a range between any two values. The automotive wiring harness produced by the extrusion process can avoid the situation of wire nesting, make the product size more uniform and stable, ensure that the gap or thickness of the elastic sheath layer 3 remains consistent throughout the automotive wiring harness product, make it easier to measure and control the thickness of the elastic sheath layer 3 during the production process, and ensure the consistency of product size.

[0035] In some embodiments, the outer diameter of the elastic sheath layer 3 is 6.6-8 mm. Figure 1 In the shown embodiment, the number of wire cores 10 is seven, and the maximum dimension of the elastic sheath layer 3 in the thickness direction is between 7.4 mm and 8 mm, that is, the wire diameter of the automotive wiring harness can be any one of 7.4 mm, 7.5 mm, 7.6 mm, 7.7 mm, 7.8 mm, 7.9 mm, 8.0 mm or a range value between any two values. In the embodiment of the present application, the wire core 10 adopts the FL31Y series flexible conductor, and the elastic sheath layer 3 adopts TPU material, so as to meet the flexibility and bending resistance requirements. The automotive wiring harness produced by the extrusion process can avoid the situation of wire nesting, make the product size more uniform and stable, ensure the wire diameter of the automotive wiring harness remains consistent, make it easier to measure and control the thickness of the automotive wiring harness during the production process, and ensure the consistency of product size. Figure 2 In the illustrated embodiment, the number of wire cores 10 is five, and the maximum dimension of the elastic sheath layer 3 in the thickness direction is between 6.6 mm and 7.2 mm, that is, the wire diameter of the automotive wiring harness can be any one of 6.6 mm, 6.7 mm, 6.8 mm, 6.9 mm, 7.0 mm, 7.1 mm, and 7.2 mm, or a range value between any two values. In the embodiment of the present application, the wire core 10 adopts a flexible conductor of the FL31Y series, and the elastic sheath layer 3 adopts TPU material, so as to meet the requirements of flexibility and bending resistance. The automotive wiring harness produced by the extrusion process can avoid the situation of wire nesting, make the product size more uniform and stable, ensure that the wire diameter of the automotive wiring harness remains consistent, make it easier to measure and control the thickness of the automotive wiring harness during the production process, and ensure the consistency of product size.

[0036] In some embodiments, the elastic sheath layer 3 is smooth, and a smooth mold surface is used during the extrusion process to form a smooth effect on the elastic sheath layer 3 on the surface of the extruded integrated automotive wiring harness.

[0037] In other embodiments, the elastic sheath layer 3 is matte, and a matte effect is formed on the elastic sheath layer 3 on the surface of the automobile wiring harness by using a mold surface with special textures or lines during the extrusion process.

[0038] In some embodiments, the automotive wiring harness includes an isolation layer 2, which is coated on the wire core component 1, and the side of the isolation layer 2 facing away from the wire core component 1 is connected to the elastic sheath layer 3. The isolation layer 2 is used to separate the wire core component 1 from the elastic sheath layer 3, so as to facilitate the function of fixing the wire core component 1, prevent the multiple wire cores 10 from moving or dislocating during the extrusion process, and ensure the structural stability of the entire wire core component 1.

[0039] In some embodiments, the isolation layer 2 includes a plurality of polymer fibers, and the plurality of polymer fibers are interconnected. The polymer fibers have high strength and durability, and can withstand the tensile force and extrusion force generated during the extrusion process, thereby preventing the core assembly 1 from loosening or being damaged during the extrusion process. Specifically, in an embodiment of the present application, the isolation layer 2 may be a non-woven fabric. As a fiber structural material, the non-woven fabric can effectively block external substances from entering the area of ​​the core assembly 1, prevent external dust, moisture, chemicals, etc. from entering the core assembly 1, and improve the reliability of the core assembly 1. In addition, the non-woven fabric has wear resistance and barrier properties, good air permeability and waterproof properties, high levels of tensile strength and tear strength, good uniformity, excellent processing performance and thermal stability. The isolation layer 2 has good thermal insulation properties, and at the same time has strong stability, wear resistance and other effects.

[0040] In some embodiments, the core assembly 1 further includes a wrapping layer 4, which is wrapped around the outer circumference of at least two cores 10, and the outer surface of the wrapping layer 4 is in contact with at least one core 10. This arrangement can provide additional electrical insulation protection and mechanical protection for the at least two wrapped cores 10, thereby reducing the risk of the cores 10 being pulled, damaged, or physically damaged by the external environment. In addition, by wrapping the outside of at least two cores 10 together in the wrapping layer 4, the overall appearance can be made more uniform and unified, which is convenient for identification and maintenance.

[0041] exist Figure 1 and Figure 2 In the illustrated embodiment, the wire core 10 includes a conductor 100 and an insulating layer 101, the insulating layer 101 is coated on the outer periphery of the conductor 100, and the insulating layer 101 of each wire core 10 is in contact with the insulating layer 101 of at least another wire core 10. Such an arrangement can enhance the structural stability of the wire core assembly 1. In addition, the insulating layer 101 can effectively isolate the signals between different wire cores 10 to prevent cross interference.

[0042] exist Figure 3In the illustrated embodiment, the wire core assembly 1 includes a connection end, and the connection end is exposed outside the isolation layer 2 and the elastic sheath layer 3. The elastic sheath layer 3 and the isolation layer 2 of appropriate lengths at both ends of the automobile wiring harness are peeled off to expose the connection end to be connected to the terminal. The automobile wiring harness also includes a terminal and a plurality of positioning members 5, and the connection end with the insulation layer 101 removed is connected to the terminal, and the positioning member 5 is sleeved on the outer periphery of the elastic sheath layer 3. A plurality of positioning members 5 are arranged at intervals in the automobile wiring harness. In some embodiments, the material of the positioning member 5 can be a flexible material, and the automobile wiring harness is fixed with a flexible material to prevent the automobile wiring harness from loosening or shifting during use. In the embodiment of the present application, the material of the positioning member 5 is rubber, so that a certain buffering and shockproof effect can be provided, thereby increasing the stability of the automobile wiring harness.

[0043] Figure 4 1 is a flow chart of a method for producing an automotive wiring harness according to an embodiment of the present application. Figure 4 , the embodiment of the present application provides a method for producing an automobile wiring harness, comprising:

[0044] Step 100: Covering the elastic sheath layer 3 on the plurality of wire cores 10 by an extrusion process.

[0045] In some embodiments, the TPU material is coated on a plurality of wire cores 10 through an extrusion process to form an integrally extruded automotive wiring harness.

[0046] Step 101: peel off part of the isolation layer 2 and the elastic sheath layer 3 to expose the connection end of the wire core assembly 1.

[0047] In some embodiments, the device Schleunlger 9580 is used to strip the elastic sheath layer 3 and the isolation layer 2 of the automobile wiring harness, and the length is determined by actual needs.

[0048] Step 102: stripping off the insulation layer 101 of the wire core 10 at the connection end.

[0049] In some embodiments, the device Schleunlger 2300 is used to strip the wire core 10 , and the insulation layer 101 of the wire core 10 is stripped off to prepare for subsequent terminal connection.

[0050] Step 103: Connect the connecting end to the terminal to obtain the automobile wiring harness.

[0051] In some embodiments, the terminal crimping is performed using the device THB-X4040E to connect the bare wire core 10 to the corresponding terminal.

[0052] In some embodiments, the processed automobile wiring harness is passed through the two-layer sheet metal structure of the automobile door. The automobile wiring harness is fixed using a positioning member 5 to prevent the automobile wiring harness from loosening or shifting during use, so that the wiring harness can be fixed in the correct position. According to actual needs, the automobile wiring harness may need to be moved or rotated in a specific area. This step enables the automobile wiring harness to move freely in a specific area through the door rotation mechanism.

[0053] The embodiment of the present application provides a car, comprising the above-mentioned car wiring harness. Therefore, the car can have all the technical features and beneficial effects of the above-mentioned car wiring harness, which will not be repeated here.

[0054] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0055] The above is a detailed introduction to an automotive wiring harness and an automotive vehicle provided in the embodiments of the present application, and the principles and implementation methods of the present application are explained by applying specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An automotive wiring harness, characterized in that: include: A wire core assembly (1), the wire core assembly (1) comprising a plurality of wire cores (10), An isolation layer (2), the isolation layer (2) being coated on the outer periphery of the wire core assembly (1); An elastic sheath layer (3), the elastic sheath layer (3) being coated on the outer periphery of the isolation layer (2), the elastic sheath layer (3) being capable of generating elastic deformation to squeeze the isolation layer (2) and the wire core assembly (1), so that the plurality of wire cores (10) are in contact with each other.

2. The automotive wiring harness according to claim 1, characterized in that: The wire core assembly (1) further comprises: A wrapping layer (4), the wrapping layer (4) is wound around the outer circumference of at least two of the wire cores (10), and the outer surface of the wrapping layer (4) is in contact with at least one of the wire cores (10).

3. The automotive wiring harness according to claim 1, characterized in that: The isolation layer (2) comprises a plurality of polymer fibers, and the plurality of polymer fibers are woven to form the isolation layer (2).

4. The automotive wiring harness according to claim 1, characterized in that: The elastic modulus of the elastic sheath layer is above 10 MPa.

5. The automotive wiring harness according to claim 4, characterized in that: The material used to prepare the elastic sheath layer (3) includes thermoplastic polyurethane.

6. The automotive wiring harness according to claim 1, characterized in that: The thickness of the elastic sheath layer (3) is 0.64 mm-0.8 mm; and / or The outer diameter of the elastic sheath layer (3) is 6.6-8 mm.

7. The automotive wiring harness according to claim 1, characterized in that: The wire core (10) comprises a conductor (100) and an insulating layer (101), wherein the insulating layer (101) is coated on the outer circumference of the conductor (100), and the insulating layer (101) of each wire core (10) is in contact with the insulating layer (101) of at least another wire core (10).

8. The automotive wiring harness according to claim 1, characterized in that: A plurality of the wire cores (10) are connected by spiral winding.

9. The automotive wiring harness according to claim 1, characterized in that: The wire core assembly (1) comprises a connection end, wherein the connection end is exposed outside the isolation layer (2) and the elastic sheath layer (3); The automobile wiring harness further comprises a terminal and a plurality of positioning members (5), wherein the terminal is connected to the connection end, and the positioning members (5) are sleeved on the outer periphery of the elastic sheath layer (3).

10. An automobile, characterized in that: The invention comprises the automotive wiring harness as claimed in any one of claims 1 to 9.

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