Abstract: A high-speed hairdryer brushless motor includes an outer housing, a stator assembly and a rotor assembly. The stator assembly includes a stator core and a coil assembly. The stator core includes a yoke portion and a teeth portion. The teeth portion includes an inner cylinder body and N outer teeth. The inner wall of the inner cylinder body is a complete cylindrical surface. N magnetic insulating grooves are provided on the outer wall of the inner cylinder body, each magnetic insulating groove being provided axially along an entire length of the inner cylinder body. The coil assembly is wound on the outer teeth of the teeth portion. Each magnetic insulating groove is a V-shaped groove that opens toward the exterior of the inner cylinder body. The rotor assembly includes a rotating shaft and a rotor magnet. An air gap is provided between the rotor magnet and the cylindrical surface.

Abstract: A heating pump includes an electric motor, a pump housing fixed to the motor, an impeller driven by the motor, and a ring heater with an inner hole for heating fluid in the pump housing. The pump housing has a pump chamber and a pump inlet and a pump outlet which are in fluid communication with the pump chamber. The impeller is received in the pump housing and having an impeller inlet and a plurality of impeller outlets. The ring heater is disposed inside the pump chamber and between the pump inlet and the impeller. The impeller inlet is in fluid communication with the pump inlet via the inner hole.

Abstract: A heating pump includes an electric motor, a pump housing fixed to the motor, an impeller driven by the motor, and a ring heater with an inner hole for heating fluid in the pump housing. The pump housing has a pump chamber and a pump inlet and a pump outlet which are in fluid communication with the pump chamber. The impeller is received in the pump housing and having an impeller inlet and a plurality of impeller outlets. The ring heater is disposed inside the pump chamber and between the pump inlet and the impeller. The impeller inlet is in fluid communication with the pump inlet via the inner hole.