Vehicle-mounted emergency power supply device

The invention belongs to the technical field of emergency power supply, and particularly relates to a vehicle-mounted emergency power supply device which comprises a vehicle head and a compartment of a compartment type emergency vehicle, a plurality of photovoltaic panels with adjustable angles are arranged on a top plate of the compartment, photovoltaic energy storage equipment is arranged on the front portion of the compartment, a diesel generator set is arranged in the middle of the compartment, and an EPS emergency power supply is arranged on the rear portion of the compartment. A cooling exhaust fan is arranged on the front wall of the compartment, a plurality of ventilation windows are evenly distributed in the side wall of the compartment, a control cabinet and a power cabinet are arranged on the inner side of the rear door of the compartment, a distributed power supply coordination controller is arranged in the control cabinet, and an emergency power socket and an automatic cable take-up device are ar