What is a car harness
automobile wiring harness is the core construction of automobile circuit and plays a vital role. It is made of copper stamping contact part terminals (connectors) and wire and cable after tight crimping, the outside then plastic pressure insulator or external metal shell, etc., to form a connected circuit component.
The function and function of automobile wiring harness
electrical connection : The wiring harness transmits power and signals to all parts of the car by connecting the electronic components, ECUs, sensors, actuators and other electronic and electrical equipment in the car to ensure reliable electrical connection of the electronic components within the service life.
system control : wiring harness is like the nervous system of a car, transmitting information and controlling the operation of each component to ensure the normal operation of the vehicle and the normal work of the electronic equipment.
signal transmission : the wiring harness not only carries the transmission and exchange task of the power signal and data signal of the electrical system, but also is responsible for transmitting the sensor signal, which may adopt optical fiber communication technology.
Classification and standard of automotive wiring harness
classification by function : automotive wiring harness is mainly divided into power lines that transmit the power of the executive components and signal lines that transmit sensor signals. Power lines usually use thick wires to carry large currents, while signal lines may use optical fiber communication technology.
By shape and type : the wire harness has cylindrical, plug and other forms, terminal types include bullet, sheet, flag and so on.
by standard classification : wiring harness has national standard, Japanese standard and other standards, suitable for different vehicles and electrical systems.
Production process and material requirements of automotive wire harness
production process : including wiring, crimping, pre-assembly and final assembly stations. The opening process should ensure that the size is accurate, the crimping process should determine the parameters according to the terminal type, and the preassembly process should be reasonable to improve the final assembly efficiency.
material requirements : automotive wire harness material requirements are strict, electrical performance, material sporadic, temperature resistance, etc., have high requirements, involving the safety of the important components of wire harness requirements more stringent.
Through these functions and production standards, automotive wiring harnesses play an important role in the vehicle, ensuring the stable operation and safety of the vehicle's electrical system.
The working principle of automotive wiring harness mainly includes the functions of conducting electricity, transmitting signals and protecting lines.
The basic functions of automotive wiring harness
conductive function : Automotive wiring harnesses transmit current through conductive materials to provide electrical energy for various parts of the vehicle, such as starting the engine and lighting the lights.
transmission signal function : many systems in modern vehicles need to communicate and control by electronic signals. The signal lines in the wiring harness can accurately and quickly transmit various signals to ensure good coordination between the vehicle systems.
line protection function : The wire harness is covered with insulation material, which can effectively prevent the corrosion and damage of the wire by the external environment, so as to protect the safety and reliability of the line. At the same time, the wiring design and fixed installation of the wiring harness also help to avoid the complexity of the line, convenient maintenance and debugging.
Structure and material of automotive wire harness
Car wiring harnesses are made up of multiple wires and cables, usually using copper multi-core cords that are wrapped in plastic insulated tubes, which are soft and do not break easily. In the design and manufacture of wire harnesses, insulating materials such as cotton yarn or polyvinyl chloride plastic tape are used to protect the wires and regular wiring.
The role of automobile wiring harness in automobile
Automobile wiring harness is the main body of automobile circuit network, and there is no automobile circuit without wiring harness. It connects the different parts and systems of the car, such as the engine, lights, sound and sensors, to ensure the normal operation of the vehicle's electrical system. The quality of the design and manufacture of the wiring harness directly affects the electrical performance and safety of the vehicle.
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