Characteristics of automotive electrical switches

       1. On the premise of good performance, not only the appearance should be beautiful, but also the color of the surface must be coordinated with the tone of the whole car interior trim, so as to improve the beauty of the whole car.
　　2. Safety factors should be considered in the design. In case of an accident, the vehicle cannot cause injury to the occupant or reduce the injury degree to the minimum. For example, the button is designed to be rounded, the length of the handle is shortened as far as possible, and the switch is fixed and embedded in the panel. In addition, the fire safety of the vehicle must be considered, and the material used for the switch should be flame retardant.
　　3. The external shape design of the automobile switch must take into account the installation position, operation mode, operation feeling and other factors, and it is necessary to design and arrange according to the man-machine theory.
　　4. The voltage level is 6v(motorcycle), 12v(car) and 24v(diesel car). In the 21st century, there may be 42v voltage level in cars.
　　5. Depending on the control object, its working mode includes instantaneous, short-term and continuous operation. Its load current can be from lma-1000a depending on the purpose.
　　6. Considering the reliability, the switch of the car and other parts used in the car will always be subjected to the impact and vibration of forces in all directions in the process of driving, making the switch parts appear early damage, riveting loose and so on. In addition, the operation of the car will also be affected by the temperature, relative humidity and other harsh environment, resulting in intensified oxidation of switch contacts, resulting in shortened switch life.