Brushless motor with skewed rotor segments

Details Brushless motor with skewed rotor segments Brushless motor with skewed rotor segments

2011-03-15

2011-03-15

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156470, C310S216041

Reexamination Certificate

active

07906880

ABSTRACT:
In a brushless motor including a rotor having 2npoles and a stator having 3nslots, segment magnets are arranged in three columns in the axial direction, thus constituting rotor poles. The segment magnets of adjacent columns, which are identical in polarity, are displaced in the circumferential direction, thus forming a three-stage step-skew structure. The skew angle θskew of each segment magnet is set to an electrical angle of 60° to 75°. The center angle of θm of each segment magnet is set to 46.8° to 52.7°.

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