cooling and life-extending device suitable for electric transportation equipment and its auxiliary facilities

Existing electric transportation equipment and its auxiliary facilities mostly rely on heating or insulation devices to cope with low-temperature environments, which is not only energy-intensive but also costly. Based on experimental findings, this invention discloses a cooling and life-extending device suitable for electric transportation equipment and its auxiliary facilities, including but not limited to functional units: battery module , cooling system , and air duct . This device actively maintains the battery module in a low-temperature range to extend battery life and improve economic efficiency throughout its life cycle. It incorporates a comprehensive strategy including multi-stage cooling, intelligent temperature control, and capacity redundancy, enabling the battery to operate stably at low-temperatures. This cooling and life-extending device transforms the scientific discovery of “low-temperature life-extending” into an engineeringable solution, significantly improving battery life and system efficiency while reducing energy consumption and operating costs for heat dissipation, demonstrating significant innovation and industrialization value.