Ultrathin-wall polyvinyl chloride insulation low-voltage automobile wire

Abstract

The utility model relates to the technical field of automobile wires, in particular to an ultrathin-wall polyvinyl chloride insulation low-voltage automobile wire, which comprises a wire core and an insulation layer wrapped on the outer circumferential wall of the wire core, a protection structure is arranged on the outer circumferential wall of the insulation layer, and the protection structure comprises a protection metal net formed by combining a plurality of rhombic structures. A memory alloy protective layer is filled in a gap in the protective metal net; the insulation layer is made of polyvinyl chloride, the thickness of the insulation layer is 0.10-0.25 mm, the thickness of the protective metal net is 0.5-2 MM, and a memory alloy protection layer 32 with the thickness of 0.5-2 MM is filled in a gap inside the protective metal net 31. By means of the design and the structure, safety and reliability of the wire are guaranteed, light weight, high strength and high reliability are achieved, and the ultrathin-wall PVC insulation low-voltage automobile wire is thinner than a traditional PVC insulation automobile wire and is more stable in performance. Therefore, the weight and the size of the cable are reduced, an automobile is lighter, energy consumption is reduced, higher strength and durability are achieved, larger tension and pressure can be borne, and the service life of the automobile wire is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electric wires, in particular to an ultra-thin-wall polyvinyl chloride insulated low-voltage automobile electric wire. Background Art

[0002] Automotive wires are wires used to connect, control and transmit electric current. They provide energy for various electronic devices and systems of the car, and are responsible for transmitting various data and signals from the cabin to the engine control module and other control units. Automotive wires play a vital role in the safety, comfort and performance of the car. Automotive wiring harnesses are cable assemblies used to transmit electrical energy and signals.

[0003] Existing PVC automotive wires are composed of many cable cores, which are tightly woven into an outer insulating layer to protect the inner cable cores from short circuit or overload and prevent the short circuit current from causing damage to other components;

[0004] However, the current PVC automotive wires are only wrapped with a single insulation layer on the outside, the cable core of the wires is easily exposed, the insulation performance is poor, and the protection is not good. When the automotive wiring harness is connected to the engine during use, the engine vibration will stretch the automotive wires, causing the insulation layer on the outside of the wiring harness to be damaged. In addition, the temperature of the automotive wires close to the engine is relatively high, and the external insulation layer is prone to cracking, posing a safety hazard. Utility Model Content

[0005] The utility model aims to provide an ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire comprises a wire core and an insulating layer wrapped on the outer circumferential wall of the wire core. A protective structure is arranged on the outer circumferential wall of the insulating layer. The protective structure comprises a protective metal mesh composed of a plurality of rhombus structures. A memory alloy protective layer is filled in the internal gaps of the protective metal mesh.

[0008] As a preferred solution of the utility model, the insulating layer is made of polyvinyl chloride with a thickness of 0.10 to 0.25 mm, and the inner circumferential wall of the insulating layer is wrapped and connected with the outer circumferential wall of the wire core by a heat shrink tubing.

[0009] As a preferred solution of the present utility model, the thickness of the protective metal mesh is 0.5MM-2MM.

[0010] As a preferred solution of the utility model, the memory alloy protective layer is a nickel-titanium alloy layer, and the thickness is the same as the thickness of the protective metal mesh.

[0011] As a preferred solution of the utility model, the Shore hardness of the polyvinyl chloride at room temperature is 90 to 100A, and the heat-resistant temperature is -40 to 105°C.

[0012] As a preferred solution of the utility model, the wire core is copper with a purity of more than 99.99%.

[0013] As a preferred solution of the utility model, the protective metal mesh on the outer circumferential wall of the insulating layer is normally retracted.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In view of the problems raised in the background technology, the present application sets an insulating layer on the outer circumferential wall of the wire core using polyvinyl chloride material with a thickness of 0.10 to 0.25 mm. This material has excellent insulation performance and can reduce weight and cost while ensuring safety;

[0016] 2. By setting a protective structure on the outer circumferential wall of the insulating layer, the protective structure is a protective metal mesh composed of a plurality of diamond structures, which can effectively resist external pressure and impact and improve the stability and service life of the wire;

[0017] 3. The memory alloy protective layer of nickel-titanium alloy material is used in the gaps of the protective metal mesh. It has good softness and toughness, can adapt to the changes in cable size caused by temperature changes, and ensure the stability of the wires;

[0018] 4. The protective metal mesh on the outer circumferential wall of the insulating layer is normally retracted. When the automotive wires are subjected to engine vibration, other external force impacts or run in a high temperature environment, the protective metal mesh on the outer circumferential wall will change its original shape due to being pulled or deformed, and can better cover the insulating layer, protect the insulating layer, and improve the stability and service life of the wires;

[0019] 5. When the temperature drops, the memory alloy protective layer will shrink according to the temperature change, and the protective metal mesh will shrink accordingly according to the memory alloy protective layer and its own diamond-shaped contraction knot, so that the two can cooperate well and effectively prevent the wire from changing due to temperature and pulling during use;

[0020] The insulating layer 2 is arranged on the outer circumferential wall of the wire core 1 and is made of polyvinyl chloride material with a thickness of 0.10 to 0.25 mm. The protective metal mesh 31 on the outer circumferential wall of the insulating layer 2 has a thickness of 0.5 MM to 2 MM. The internal gap of the protective metal mesh 31 is filled with a memory alloy protective layer 32 with a thickness of 0.5 MM to 2 MM. Such a design and construction not only ensures the safety and reliability of the wires, but also achieves lightweight, high strength and high reliability. The ultra-thin-wall PVC insulated low-voltage automotive wire is thinner than the traditional PVC insulated automotive wire, thereby reducing the weight and volume of the cable, making the car lighter and reducing energy consumption; the structure and material of the ultra-thin-wall PVC insulated low-voltage automotive wire make it have higher strength and durability, can withstand greater tension and pressure, and extend the service life of the automotive wire; the ultra-thin-wall PVC insulated low-voltage automotive wire also has good thermal conductivity, so that the heat generated by the car during driving can be quickly transferred out, avoiding safety problems that may occur due to long-term heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the overall axonometric drawing of the utility model;

[0022] Figure 2 This is the overall front view of the utility model;

[0023] Figure 3 It is a schematic diagram of the protective structure of the utility model.

[0024] In the figure: 1. wire core; 2. insulation layer; 3. protection structure; 31. protection metal mesh; 32. memory alloy protection layer. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0026] Example

[0027] See also Figure 1-3 The utility model provides a technical solution: an ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire, comprising a wire core 1, an insulating layer 2 wrapped on the outer circumferential wall of the wire core 1, a protective structure 3 is arranged on the outer circumferential wall of the insulating layer 2, the protective structure 3 comprises a protective metal mesh 31 composed of a plurality of rhombus structures, and a memory alloy protective layer 32 is filled in the internal gap of the protective metal mesh 31; the protective metal mesh 31 on the outer circumferential wall of the insulating layer 2 is normally a retracted type; the thickness of the protective metal mesh 31 is 0.5MM-2MM, and the memory alloy protective layer 32 is a nickel-titanium alloy layer, and the thickness is the same as the thickness of the protective metal mesh 31.

[0028] It should be noted that the present application sets a protective structure 3 on the outer circumferential wall of the insulating layer 2. The protective structure 3 is a protective metal mesh 31 composed of a plurality of diamond structures, which can effectively resist external pressure and impact, and improve the stability and service life of the wire.

[0029] Furthermore, the thickness of the protective metal mesh 31 is controlled between 0.5MM-2MM, which can provide sufficient protection without adding too much weight. The protective metal mesh 31 protects and prevents external objects from directly damaging the wires themselves, and can effectively protect the wires from external forces such as mechanical collision, scratching and squeezing. In addition, the metal protective mesh can also prevent other animals from chewing the wires, and avoid problems such as line short circuits caused by external reasons;

[0030] Furthermore, the memory alloy protective layer 32 of nickel-titanium alloy material is selected at the gap of the protective metal mesh 31, which has good softness and toughness, can adapt to the change of cable size caused by temperature change, and ensure the stability of the wire;

[0031] Furthermore, the protective metal mesh 31 on the outer circumferential wall of the insulating layer 2 is normally of a retractable type. When the automotive electrical wires are subjected to external force impact or are running in a high temperature environment, the protective metal mesh 31 on the outer circumferential wall will change its original shape due to being pulled or deformed by the engine shaking, and can better cover the insulating layer 2, protect the insulating layer 2, and improve the stability and service life of the electrical wires. When the temperature becomes low, the protective metal mesh 31 drives the memory alloy protective layer 32 to retract to prevent the adverse effects of the external environment, such as the influence of temperature, humidity and other factors on the electrical wires, which can greatly improve the stability and service life of the electrical wires.

[0032] In addition, when the temperature drops, the memory alloy protective layer 32 will shrink according to the temperature change, and the protective metal mesh 31 will shrink accordingly according to the condition of the memory alloy protective layer 32 and its own diamond-shaped contraction knot, thereby ensuring a tacit cooperation between the two and effectively preventing the wires from being pulled due to temperature deterioration during use.

[0033] See also Figure 1 and 2 The insulating layer 2 is made of polyvinyl chloride with a thickness of 0.10 to 0.25 mm. The inner circumferential wall of the insulating layer 2 is wrapped and connected with the outer circumferential wall of the core 1 through a heat shrink tubing; the Shore hardness of polyvinyl chloride at room temperature is 90 to 100A and the heat resistance temperature is -40 to 105°C; the core 1 is copper with a purity of more than 99.99%.

[0034] It should be noted that, in this embodiment, the insulating layer 2 is provided on the outer circumferential wall of the wire core 1 and is made of polyvinyl chloride material with a thickness of 0.10 to 0.25 mm. This material has excellent insulation performance and can reduce weight and cost while ensuring safety. Copper with a purity of more than 99.99% is selected, which has good electrical conductivity and thermal conductivity to ensure efficient operation of the wire.

[0035] Furthermore, the insulating layer 2 is made of polyvinyl chloride material on the outer circumferential wall of the wire core 1, and its thickness is between 0.10 and 0.25 mm. The protective metal mesh 31 on the outer circumferential wall of the insulating layer 2 has a thickness of 0.5 MM-2 MM, and the internal gap of the protective metal mesh 31 is filled with a memory alloy protective layer 32 with a thickness of 0.5 MM-2 MM. Such a design and structure not only ensures the safety and reliability of the wire, but also achieves lightweight, high strength and high reliability. The ultra-thin-wall PVC insulated low-voltage automotive wire is thinner than the traditional PVC insulated automotive wire, thereby reducing the weight and volume of the cable, making the car lighter and reducing energy consumption;

[0036] The structure and materials of ultra-thin wall PVC insulated low-voltage automotive wires make them stronger and more durable, able to withstand greater tension and pressure, and extend the service life of automotive wires;

[0037] Ultra-thin-wall PVC insulated low-voltage automotive wires also have good thermal conductivity, allowing the heat generated by the car during driving to be quickly transferred away, avoiding safety issues that may arise due to prolonged heating.

[0038] The utility model workflow:

[0039] When in use, the protective metal mesh 31 on the outer circumferential wall of the insulating layer 2 is normally retracted. When the automotive wires are subjected to engine vibration, other external force impacts, or run in a high temperature environment, the protective metal mesh 31 on the outer circumferential wall will change its original shape due to being pulled or deformed, and can better cover the insulating layer 2, protect the insulating layer 2, and improve the stability and service life of the wires;

[0040] When the temperature drops, the memory alloy protective layer 32 will shrink according to the temperature change, and the protective metal mesh 31 will shrink accordingly according to the memory alloy protective layer 32 and its own diamond-shaped contraction knot. This ensures that the two work well together and can effectively prevent the wires from being damaged by temperature and pulling during use.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-thin-wall polyvinyl chloride insulated low-voltage automotive electric wire, comprising a wire core (1) and an insulating layer (2) wrapped around the outer circumferential wall of the wire core (1), characterized in that: A protective structure (3) is provided on the outer circumferential wall of the insulating layer (2), the protective structure (3) comprising a protective metal mesh (31) composed of a plurality of rhombus structures, and a memory alloy protective layer (32) is filled in the internal gaps of the protective metal mesh (31).

2. The ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire according to claim 1, characterized in that: The insulating layer (2) is made of polyvinyl chloride and has a thickness of 0.10 to 0.25 mm. The inner circumferential wall of the insulating layer (2) is wrapped and connected to the outer circumferential wall of the wire core (1) via a heat shrink tubing.

3. The ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire according to claim 1, characterized in that: The thickness of the protective metal mesh (31) is 0.5MM-2MM.

4. The ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire according to claim 1, characterized in that: The memory alloy protective layer (32) is a nickel-titanium alloy layer, and its thickness is the same as that of the protective metal mesh (31).

5. The ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire according to claim 1, characterized in that: The Shore hardness of the polyvinyl chloride at room temperature is 90 to 100A, and the heat-resistant temperature is -40 to 105°C.

6. The ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire according to claim 1, characterized in that: The wire core (1) is copper with a purity of more than 99.99%.

7. The ultra-thin-wall polyvinyl chloride insulated low-voltage automobile wire according to claim 1, characterized in that: The protective metal mesh (31) on the outer circumferential wall of the insulating layer (2) is in a retracted form.

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