ELECTRONIC COOLING WATER PUMP WITH FLOATING IMPELLER FOR MOTOR VEHICLE

摘要

Disclosed is a cooling water pump with a floating impeller for a motor vehicle, comprising a support (6), wherein a stator (5), a water pump cover (2), a socket injection molding (2), a controller (8) and a rear cover (9) are mounted on the support separately by bolts. A rotor impeller injection molding (3) is mounted at the center of the stator (5). The rotor impeller injection molding (3) is of a design integrating a water pump impeller with an electric machine rotor. When the electronic cooling water pump is operating, the interaction between the magnetic field generated by the stator (5) and the magnetic field generated by the permanent magnets in the rotor impeller injection molding (3) can not only turn the rotor impeller injection molding (3) at a certain rotation speed, but also make the rotor impeller injection molding float automatically in the center of the stator. As it rotates, the impeller remains at all times in a magnetic floating state, so it will not experience friction with other components, and the mechanical loss in the motor vehicle cooling water pump is reduced and the efficiency of the motor vehicle cooling water pump is increased, thereby reducing the fuel consumption of the motor vehicle.