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Mobile WebSiteAt present, the wiring harness is basically the same in the form of high-class luxury cars or economical general automobiles, all of which are made up of electric wires, plug-ins and wrapping tapes. It not only ensures the transmission of electric signals but also ensures that the connecting circuit The reliability of the electrical and electronic components to supply the provisions of the current value to prevent electromagnetic interference to the surrounding circuits and to exclude electrical short circuit. In modern cars, car audio wiring harness particularly large, electronic control systems and wiring harness has a close relationship. Lamp holder business said: Someone once called an image analogy: If the computer, sensor and actuator functions with the human body metaphor, it can be said that the computer is equivalent to the human brain, the sensor is equivalent to the sensory organs, the actuator is equivalent to the actuator tube , Then the harness is the nerve and blood vessels.
Automotive wiring harness is the main body of the automotive network, connecting the car's electrical and electronic components and make it work, there is no motorcycle harness there is no car circuit. In terms of function, there are two types of power lines that carry electric power for driving the actuator (actuator) and two signal lines for transmitting the sensor input command. The power line is a thick wire that carries a large current while the signal line is a thin wire (optical fiber communication) that does not carry power; for example, the cross-sectional area of the wire for the signal circuit is 0.3, 0.5 mm2.
In the motor, the actuator wire cross-sectional area of 0.85,1.25 mm2, and the power supply circuit with wire cross-sectional area of 2,3,5 mm2; and special circuits (starter, alternator, engine ground, etc.) 10,15,20 mm2 different specifications. The larger the wire cross-sectional area, the greater the current capacity. The choice of wire, in addition to considering the electrical properties, but also subject to physical constraints when the car, so the choice of a wide range. For example, frequent on / off doors on a taxi and wires across a car body should be constructed of good flexing wires. Conductors used in high temperature parts generally use vinyl chloride and polyethylene coated wires with good insulation and heat resistance. In recent years, the weak signal circuit using the electromagnetic shielding wire is also increasing.
With the increase of car functions, the common application of electronic control technology, more and more electrical parts, more and more wires, a significant increase in the number of circuits and electricity consumption in the car, the harder and harder the wiring harness becomes . This is a big problem that needs to be solved. How to make a large number of wiring harnesses more efficiently and reasonably arranged in a limited space and make the wiring harnesses function more has become a problem for the automobile manufacturing industry.
