What is automotive electronic wire harness? Automotive electronic wire harness production process and what are the quality requirements?

An automotive electronic wiring harness is a collection of wires and cables that connect various electrical and electronic devices in a vehicle. They usually consist of multiple insulated wires, connectors, protective sleeves and other necessary components. Automotive electronic wiring harnesses play an important role in transmitting power and signals in vehicles, connecting various critical systems such as engine management systems, in-car entertainment systems, body control systems and safety systems. The following is a detailed introduction to the production process of automotive electronic wiring harnesses and the quality requirements: design and planning: in the production process of automotive electronic wiring harnesses, the first thing that needs to be done is to design and plan. This includes determining the type, gauge and length of wires, etc. according to the specific needs and electrical layout of the vehicle. At the same time, it is also necessary to consider the layout and installation location of the wiring harness to ensure its reasonable installation and connection in the vehicle. Material Procurement and Preparation: According to the wiring harness requirements determined by the design planning, the corresponding wires, connectors, protective sleeves and other components are procured. These materials must meet the relevant standards and requirements of the automotive industry and have good electrical performance, durability and protection. Wire Cutting and Stripping: During the production process, the wires are cut and stripped according to the design requirements. This requires the use of specialized tools and equipment to ensure the accuracy of wire length and exposed conductors. Connector Installation: Connectors are installed at the end of the wire to ensure a good connection and conductivity. This requires proper connector crimping and soldering operations to ensure a strong and stable connection. Assembly and Braiding: Assembles and braids the wires that have been stripped and fitted with connectors. This includes combining different wires together, taping and securing with protective sleeving, and installing other necessary components such as junction boxes and connector brackets. Testing and Quality Control: After production is complete, automotive electronic wire harnesses are tested and quality controlled. This includes the use of specialized test equipment to test the harness for electrical performance, connectivity and insulation. At the same time, it is also necessary to carry out appearance inspection and waterproof performance test, etc., to ensure that the quality of the wire harness meets the requirements. Packaging and Delivery: After passing the quality control inspection, the electronic wire harnesses are packaged and labeled, and delivered according to customer requirements. Reasonable packaging and labeling can protect the integrity and safety of the harness, and facilitate subsequent installation and use. In the production process of automotive electronic wire harnesses, strict quality control is required to ensure their reliability and durability. The following are some common quality requirements: Electrical Performance: Automotive electronic wire harnesses must have good electrical performance, including resistance, capacitance, insulation resistance and other aspects of the requirements. This ensures the stability and reliability of the harness when transmitting power and signals. Connectivity: The connectors in the harness must be able to firmly connect and ensure good electrical conductivity. The number of times the connectors can be plugged in and out and the connection force requirements also need to comply with the relevant standards. Durability: Wiring harnesses are affected by environmental factors such as vibration, temperature changes and humidity in the vehicle and therefore need to have good durability. This includes requirements for the resistance of wires and protective sleeves to abrasion, aging and corrosion. Insulation: Since automotive electronic wire harnesses traverse a variety of environments and components in the vehicle, their insulation is critical. The harness must have good insulation materials and insulation layer to ensure safe operation under high voltage and high temperature environment. Appearance quality: The appearance quality of automotive electronic wiring harnesses is required to be of high quality, and there should be no obvious damage, scratches, contamination and looseness. External markings and colors should meet the standard requirements to facilitate installation and maintenance. Safety: Automotive electronic wire harnesses must comply with relevant safety standards and regulatory requirements. This includes requirements for fire resistance, water resistance, short circuit prevention and electromagnetic interference prevention. Through the above production process and quality requirements, automotive electronic wiring harnesses can meet the automotive industry's stringent requirements for reliability, durability and safety to ensure the normal operation of vehicles and driving safety.

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