The lifeblood of a car

The car wire beam is the network body of the car circuit. It connects and functions the electrical and electronic parts of the car. There is no car circuit without a wire beam. At present, whether it is a high-end luxury car or an economical ordinary car, the form of wiring is basically the same, of course, motorcycle wiring is also important for all motorcycles! It is composed of wires, connected plug-ins, and package tape. It must ensure the reliability of the electrical signal and the connection circuit, supply the specified current value to the electronic and electrical components, and prevent electromagnetic interference with the surrounding circuits. And eliminate electrical short circuits.
The car wire beam is divided from function, and there are two types of power lines that carry the power of the actuator(actuator) and signal lines that transmit sensor input instructions. For example, a car audio wire beam, a power line is a thick wire that transports a large current, and a signal line is a thin wire(optical fiber communication) that does not carry electricity; For example, the cross-sectional area of the wire used in the signal circuit is 0.3, 0.5 MM2.
However, with the continuous improvement of people's requirements for comfort, economy, and safety, the variety of electronic products on cars is also increasing, and the use of car wire bundles will naturally increase. Someone once made an image analogy: If the function of the microcomputer, sensor and actuator is compared to the human body, it can be said that the microcomputer is equivalent to the human brain, the sensor is equivalent to the sensory organ, and the actuator is equivalent to the actuator tube, then the wire beam is The nerves and blood vessels.
The cross-sectional area of wires used in motors and actuators is 0.85, 1.25 MM2, and the cross-sectional area of wires used in power circuits is 2, 3, and 5 MM2; Special circuits(starter, alternator, engine grounding, etc.) have different specifications of 8, 10, 15, and 20 MM2. The larger the cross-sectional area of the wire, the greater the current capacity. The choice of wires, in addition to considering electrical properties, is also limited by the physical properties of the vehicle, so its selection range is wide. For example, the frequently open/shut doors on a taxi and the wires that cross the body should consist of wires with good bending performance. The conductors of connector plugs used in high temperatures generally use vinyl chloride and polyethylene wires with good insulation and heat resistance. In recent years, the electromagnetic shielding wire used in weak signal circuits has also been increasing.
In the automotive industry, the use of car wire bundles also partially reflects the degree of modernization of cars. The increase of the car wire beam has also put forward new requirements for the design of the car. All in all, the development of the automotive industry will progress with the development of the automotive industry, and the development of the automotive industry will also be affected to some extent by the development of the automotive wire beam.