Magnetizing method for a permanent-magnet motor

Details Magnetizing method for a permanent-magnet motor Magnetizing method for a permanent-magnet motor

1998-06-25

2000-07-04

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

For magnetizing or demagnetizing

H01F 702, H01F 1300

Patent

active

060844965

ABSTRACT:
In a method of magnetizing a material of a permanent magnet portion provided in a rotor for a permanent-magnet motor, the material of the permanent magnet portion is embedded inside the rotor body, while the permanent magnet material has anisotropy in a direction penetrating the permanent magnet portion in section, and then the rotor is incorporated in a magnetizing unit and held in a rotatable manner, and the permanent magnet material is magnetized by flowing a magnetizing current through windings under the condition that the rotor is rotatably held in the magnetizing unit. Thus, the permanent magnet material is completely magnetized in a normalized direction, and even if the rotor is shifted from the normalized position, the rotor is retained back to the normalized position by a magnetic torque.

REFERENCES:
patent: 5424902 (1995-06-01), Shida et al.
patent: 5624503 (1997-04-01), Yamashita
patent: 5684352 (1997-11-01), Mita et al.

Affiliated with

Also associated with

Rating

Magnetizing method for a permanent-magnet motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetizing method for a permanent-magnet motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetizing method for a permanent-magnet motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1490271