What is automotive wiring harness? What are the domestic and international manufacturers of automotive wiring harness?

First, what is an automotive wiring harness? Automotive wiring harness is an important part of the automotive electrical system, it is a collection of wires and cables, connecting the various electrical components of the car, such as engine control modules, sensors, in-car entertainment systems, lighting systems and airbags. Automotive wiring harness in the automotive electrical system plays a role in the transmission of electricity and signals, is the automotive electrical system in the "nervous system". Automotive wiring harnesses are usually composed of wires, insulating materials, connectors, protective sleeves, etc. The wires are the main components of the wiring harness. Wire is the main component of the harness, made of copper or aluminum, light weight, good conductivity, long life. Insulation is a protective layer covering the surface of the wire, mainly to protect the wire from damage, prevent short-circuit and so on. Connector is the harness connected together components, good quality connectors can ensure the reliability and safety of the circuit. Protective sleeve is covered in the harness surface of a layer of outer layer of protection, mainly play a role in preventing the wiring harness from external physical damage, to prevent the wiring harness is ultraviolet radiation. The production of automotive wiring harnesses is usually divided into the following steps: design: according to the requirements of the automotive electrical system, the design of a suitable wiring harness structure and wire length, number, color and other parameters. Manufacturing: the wires are combined and braided according to the design requirements, wrapped with insulating materials, then processed and assembled with connectors, and finally the wiring harness is covered with a protective sleeve to make the finished wiring harness. Testing: Conduct various tests on the manufactured wiring harness, including resistance test of wires, electrical test of insulating materials, contact test of connectors, etc. to ensure the quality and reliability of the wiring harness. Installation: Install the wiring harnesses to different parts of the car, such as the engine compartment, doors, seats, instrument panel, etc.. A modern automobile typically has hundreds of electrical connections, each of which requires one or more wires to transmit power or signals. These wires must be arranged and organized into a compact system to ensure that they can work reliably and remain safe. This is where automotive wiring harnesses come in. An automotive wiring harness usually consists of a series of wire harnesses and connectors that are measured and labeled to ensure that they can be installed in the correct location. The length, color, size and shape of the wiring harness must be manufactured according to the specifications of the automobile manufacturer. The manufacturing process of automotive wiring harnesses requires automated and machined equipment. On a production line, manufacturers use machines to assemble wires and connectors together to form finished wire harnesses. These wiring harnesses are then connected to the vehicle's electrical system, where they are connected to various components of the car through plugs and sockets. Due to the complexity and importance of wiring harnesses, automakers often outsource their manufacturing to specialized companies. These companies have state-of-the-art equipment and technology to produce high-quality wiring harnesses and deliver them to automakers for installation. A malfunctioning automotive wiring harness can lead to problems with the car's electrical system and may even prevent the entire vehicle from functioning properly. Wiring harnesses can become faulty due to wear and tear, damage, deterioration, or incorrect installation. For this reason, car manufacturers and vehicle owners alike need to regularly check the condition of their wiring harnesses to ensure that they are working properly. The automotive wiring harness plays a very important role in the electrical system of a car. It not only transmits power and signals from various parts of the car, but also protects the automotive electrical system from the external environment and prevents the occurrence of circuit short-circuit, overload and damage. At the same time, the design and manufacture of the wiring harness should also take into account the safety of the car and environmental protection, for example, in the manufacturing process of the wiring harness to choose environmentally friendly materials, to ensure that the wiring harness is non-toxic, odorless and harmless.

Second, what are the domestic and foreign manufacturers of automotive wiring harness?

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