Balancing structure for motor rotor

Details Balancing structure for motor rotor Balancing structure for motor rotor

2007-05-22

2007-05-22

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S051000, C310S216006

Reexamination Certificate

active

11146051

ABSTRACT:
A motor includes a fixed portion having a stator with at least two pole faces. Each pole face includes a strong magnetic section and a weak magnetic section for respectively creating stronger and weaker alternating magnetic fields. A rotor includes a shaft rotatably extending through the fixed portion and an annular magnet mounted to an inner periphery of the rotor and facing the pole faces of the stator. At least one magnetically conductive balancing portion is mounted on the fixed portion and includes at least two magnetically conductive faces that are respectively aligned with the weak magnetic sections and that face at least one face of the annular magnet. When the rotor turns, the annular magnet of the rotor induces the stronger alternating magnetic fields and the weaker alternating magnetic fields and attracts the magnetically conductive faces to thereby maintain starting stability and rotational balance of the rotor.

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