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The importance of the car wire harness

Posted On:2017-08-11 10:36:59

With the improvement of living standards, people's requirements for comfort, economy, and safety have been continuously improving. The variety of electronic products on cars has also been 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 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. The power line is a thick wire that transports large currents, while the 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.
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 used in high temperatures are generally vinyl chloride and polyethylene coated wires with good insulation and heat resistance. In recent years, the electromagnetic shielding wire used in weak signal circuits has also been increasing.
With the development of the automobile industry, the automobile wire harness is also changing rapidly, and it is playing an increasingly important role in the development of automobiles, even to a large extent, according to the professional auto wire processing plant, engineer Liu Haozhi. The development of the automobile industry is affected by the development of the automobile wire beam.
Paraphrase: Car wire beam, known as the motor nerve, is the vehicle for electric signal control. Car wire harness is the main body of the network of car circuits. There is no car circuit without wire harness. In order to facilitate installation, maintenance and ensure that electrical equipment can work under the worst conditions, the different specifications and different colors of wires used in electrical equipment throughout the vehicle are often combined through reasonable arrangements. Bind the wire into a wire bundle with an insulating material so that it is complete and reliable.

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