Stepping motor with self alignable magnet

Details Stepping motor with self alignable magnet Stepping motor with self alignable magnet

1998-04-23

2000-02-15

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 89, 310258, H02K 338, H02K 1502, H02K 112

Patent

active

060256613

ABSTRACT:
A stepping motor includes a rotor having a shaft and a permanent magnet securely mounted on the shaft. At least one coil wound in a plane interacts with the rotor to activate a magnetic field. An axis of magnetic field generation of the coil is perpendicular to the shaft of the rotor. The stepping motor further includes a metal housing receiving the rotor and the at least one coil. The metal housing has at least one protrusion formed on an inner face thereof to correspond to the at least one coil and attract and align the permanent magnet with the coil when the motor malfunctions.

REFERENCES:
patent: 4071788 (1978-01-01), Martin et al.
patent: 4319823 (1982-03-01), Hashimoto
patent: 4818911 (1989-04-01), Taguchi et al.
patent: 4831293 (1989-05-01), Krop
patent: 5124601 (1992-06-01), Miyashita
patent: 5686832 (1997-11-01), Ayres et al.

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