Balancing structure for motor

Details Balancing structure for motor Balancing structure for motor

2007-05-29

2007-05-29

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S051000, C310S06700R

Reexamination Certificate

active

11126224

ABSTRACT:
A motor includes a fixed portion, a rotor, and at least one balancing plate fixed on the fixed portion. The fixed portion includes a stator having at least one pole plate that extends to form a plurality of pole faces, with a gap being defined between a pair of the pole faces adjacent to each other. The rotor includes a shaft and an annular magnet facing the pole faces. The balancing plate includes at least two magnetically conductive faces respectively aligned with the gaps. Each magnetically conductive face includes a length not smaller than that of an associated gap. The pole faces face at least one face of the annular magnet. When the rotor turns, the annular magnet of the rotor induces the alternating magnetic fields created by the stator and attracts the magnetically conductive faces to thereby maintain rotational balance of the rotor.

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