Rotor for brushless electromotor

Details Rotor for brushless electromotor Rotor for brushless electromotor

1994-11-17

1996-04-16

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 64, H02K 2112, H02K 132

Patent

active

055085768

ABSTRACT:
A rotor having permanent magnets for a brushless electromotor includes a yoke formed from a plurality of silicon steel sheets laminated together and provided along its outer periphery with even number of, at least four magnetic poles. The magnetic poles are alternately provided substantially at equal distances from a rotational axis with slots to receive the respective permanent magnets such that the sides of the permanent magnets facing a rotary shaft have the same polarity. As a result, a compact and efficient rotor is obtained, and damage to or flying off of the permanent magnets is prevented.

REFERENCES:
patent: 4322646 (1982-03-01), Persson
patent: 4403161 (1983-09-01), Miyashita et al.
patent: 4658165 (1987-04-01), Vanderschaeghe
patent: 4845837 (1989-07-01), Lloyd
patent: 5111096 (1992-05-01), Horst
patent: 5223759 (1993-06-01), Shimoda et al.
patent: 5258678 (1993-11-01), Futami
patent: 5285123 (1994-02-01), Kataoka et al.
patent: 5359248 (1994-10-01), Nagate et al.
patent: 5369325 (1994-11-01), Nagate et al.
patent: 5371426 (1994-12-01), Nagate et al.

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