Air source heat pump operating in ultralow-temperature environment and provided with external anti-vibration assembly

The utility model discloses an air source heat pump operating in an ultralow temperature environment and provided with an external anti-vibration assembly, which comprises a box body, a base is mounted at the bottom end in the box body, an air source heat pump heat exchanger is mounted at the top end of the base, fixed seats are mounted at two ends in the box body, and first accommodating grooves are formed in the fixed seats; and a second motor is mounted in the fixed seat above the first accommodating groove. The first motor is started to drive the turning plate to rotate, the cleaning pad on the other side of the turning plate makes contact with the outer side of the air source heat pump heat exchanger, unmelted frost can be cleaned in an auxiliary mode through vertical movement of the cleaning pad, and meanwhile damage to elements of the air source heat pump heat exchanger due to long-time heating can be avoided; and through double replacement and cooperation of heating and cleaning, the defrosting effect