Vehicle-mounted forced cooling device

The invention discloses a vehicle-mounted forced cooling device. The vehicle-mounted forced cooling device comprises a condenser, a compressor unit, an evaporator, a cold storage box, a circulating pump, a heat exchanger, a temperature control regulating valve, an electric heater, a filter, a buffer tank and an ion exchanger, wherein the condenser, the compressor unit and the evaporator are circularly connected through a heat preservation hose to form a refrigeration circulation loop; the cold storage box, the circulating pump and the heat exchanger are circularly connected through a heat preservation hose to form a cold storage heat exchange loop; and the temperature control regulating valve, the electric heater, the filter, the buffer tank and the ion exchanger are circularly connected to form a cooling liquid supply loop. The vehicle-mounted forced cooling device provided by the invention has the functions of refrigeration, cold storage, cooling liquid purification, cooling liquid temperature control and e