China's industrial connector trading network, air pollution, mostly from heavy duty diesel engine. From the public traffic embarked on new energy vehicles, can significantly reduce emissions, but also because of the characteristics of public transportation route is fixed, easier to operate in the new energy technology and implementation. Of course, compared to public transport and car of new energy resources, has the very big difference. Performance requirements for each component of the high voltage and high current environment more demanding. Safe, reliable, efficient distribution control, transmission and new energy vehicle safety connector become the core and key.