MODULAR PERMANENT MAGNET MOTOR AND PUMP ASSEMBLY

摘要

A permanent magnet machine, a rotor assembly for the machine, and a pump assembly. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets configured as one of internal or surface mounted. The rotor assembly also including a plurality of retaining clips configured to retain the plurality of permanent magnets relative to the rotor core. The pump assembly including an electric submersible pump and a permanent magnet motor for driving the pump.

主权项

1. A rotor assembly for a permanent magnet machine configured to rotate about a longitudinal axis, the rotor assembly comprising:
a rotor shaft; and a plurality of rotor modules configured to generate a magnetic field, whose magnetic field interacts with a stator magnetic field to produce a torque, the plurality of rotor modules disposed about the rotor shaft in an end-to-end axial alignment and cooperative engagement, each of the plurality of rotor modules comprising:
a rotor core;a plurality of permanent magnets; anda plurality of retaining clips configured to retain the plurality of permanent magnets relative to the to the rotor core.