The electrical interface definition includes information such as male and female connectors, terminal model, pin definition and pin arrangement, current type and current size of the pin, and the motor electrical interface definition also includes the corresponding current and stall current. and other parameters. The definition of the electrical interface is the basis for realizing the platformization of the wiring harness, and it plays a decisive role in whether the wiring harness can be platformized. Due to the limitation of the electrical appliance development designer’s own connector knowledge level and the degree of attention to the development of the interface definition, the design of the interface definition has not been paid enough attention, resulting in the fragmentation of the wiring harness system.