Abstract: An air conditioner includes an indoor unit and an outdoor unit. The outdoor unit includes a housing, a compressor, a first damping member, and a second damping member. The compressor is provided with a pipe. The first damping member and the second damping member each are disposed on the pipe. The second damping member is located at a preset position of the pipe. The first damping member and the second damping member are configured to change a natural resonant frequency of the pipe to a target frequency. The second damping member includes a housing assembly and a clamping groove. The clamping groove is disposed on a side of the cavity proximate to the pipe, so that a center of gravity of the second damping member deviates from a center of gravity of a portion of the pipe connected with the damping groove.

Abstract: An axial flow fan includes an axial flow impeller, a motor configured to drive the axial flow impeller to rotate, and a resistance member. The axial flow impeller includes a hub having a shaft hole and blades arranged at an outer peripheral wall of the hub. The motor includes a motor body and a motor shaft connected to the motor body and engaged in the shaft hole. The resistance member is arranged at the hub and close to a free end of the motor shaft. A stiffness of the resistance member is greater than a stiffness of the hub.

Abstract: An air conditioner includes an indoor unit and an outdoor unit. The outdoor unit includes a housing, a compressor, a first damping member, and a second damping member. The compressor is provided with a pipe. The first damping member and the second damping member each are disposed on the pipe. The second damping member is located at a preset position of the pipe. The first damping member and the second damping member are configured to change a natural resonant frequency of the pipe to a target frequency. The second damping member includes a housing assembly and a clamping groove. The clamping groove is disposed on a side of the cavity proximate to the pipe, so that a center of gravity of the second damping member deviates from a center of gravity of a portion of the pipe connected with the damping groove.

Abstract: An axial flow fan includes an axial flow impeller, a motor configured to drive the axial flow impeller to rotate, and a resistance member. The axial flow impeller includes a hub having a shaft hole and blades arranged at an outer peripheral wall of the hub. The motor includes a motor body and a motor shaft connected to the motor body and engaged in the shaft hole. The resistance member is arranged at the hub and close to a free end of the motor shaft. A stiffness of the resistance member is greater than a stiffness of the hub.