Custom Wire Harness Assembly Service OEM Wire Cable Assembly For Medical Equipment

Automobile harness function introduction Car harness is the main body of the network of car circuits. It connects the electrical and electronic components of the car and makes them function. Without harness, there is no car circuit. At present, whether it is an advanced luxury car or an economical ordinary car, the wiring harness is basically the same in form. It is composed of wires, connectors and wrapping tape. It should not only ensure the transmission of electrical signals, but also ensure the reliability of the connecting circuit, supply the specified current value to the electronic and electrical components, prevent electromagnetic interference to the surrounding circuits, and eliminate the electrical short circuit. In terms of function, the car harness can be divided into two types: the power line that carries the power of the driving actuating element (actuator) and the signal line that transmits the input command of the sensor. Power lines are thick wires that carry large current, while signal lines are thin wires that do not carry electricity (optical fiber communication); For example, the sectional area of wires used for signal circuits is 0.3 and 0.5mm2. The sectional area of wires used for motors and actuators is 0.85 and 1.25 mm2, while the sectional area of wires used for power circuits is 2, 3 and 5 mm2; Special circuits (starter, alternator, engine ground wire, etc.) have different specifications of 8, 10, 15 and 20mm2. The larger the cross-sectional area of the wire, the greater the current capacity. In addition to considering the electrical performance, the selection of wires is also restricted by the physical performance of the vehicle, so its selection range is very wide. For example, the wire between the frequently opened/closed door and the crossing body on the taxi should be composed of wires with good flexibility. Conductors used at high temperature locations generally use vinyl chloride and polyethylene coated conductors with good insulation and heat resistance.