Stepper motor and method of manufacture

Details Stepper motor and method of manufacture Stepper motor and method of manufacture

1997-03-10

1999-08-31

Young, Lee W.

Metal working

Method of mechanical manufacture

Electrical device making

29598, 310 43, 310 49R, 310154, 310194, H02K 1502, H02K 104

Patent

active

059437600

ABSTRACT:
A method of making stepper motor includes: providing a permanent magnet rotor carried by an output shaft; forming a bobbin having an alignment feature, a bearing opening for supporting the shaft, and a passage for receiving the permanent magnet rotor; forming a magnetically soft stator-yoke located around the inside of the passage; winding a coil of electrically conducting wire around the bobbin; and providing a motor housing for receiving the bobbin and where the motor housing has a corresponding alignment feature to align the bobbin with the housing.

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patent: 5685062 (1997-11-01), McCarthy et al.
patent: 5829119 (1998-11-01), Matsushita et al.

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