Electronically commutated motor for driving pump stage of fuel pump of motor vehicle, has cage with short-circuit rings connecting axial ends of short-circuit rods, where rods are extended by magnetic material of permanent magnets

摘要

The motor has a rotor arranged on a pivotably supported shaft, where the rotor includes permanent magnets uniformly distributed over a circumference. The rotor is enclosed by a stator with solenoid coils distributed at an extent. The rotor has a metallic short-circuit cage (1) arranged concentric to a rotational axis of a shaft (4). The cage has a set of short-circuit rings (3) connecting axial ends of a set of short-circuit rods (2), where the rods are extended by magnetic material of a set of permanent magnets. The magnets form a magnet ring made of plastic-bonded magnet material.