Stator grounding means based on radial interference

Details Stator grounding means based on radial interference Stator grounding means based on radial interference

1998-02-12

1999-10-12

Enad, Elvin G.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, 310 51, 310 67R, 310 71, 310217, 310254, 310258, H01R 3908, H02K 1300

Patent

active

059659661

ABSTRACT:
An improved spindle motor design of a type especially for use in a disc drive is disclosed, which provides a simplified design for installation of the stator over the shaft, and should especially locate the stack both radially and axially in a specific location relative to the shaft so that its location relative to the surrounding, rotating parts of the motor is fixed. In addition, the improved spindle motor design fixes the stack on the shaft through radial interference, eliminating the need for adhesive to fix the stator to the shaft. Also, the design minimizes the cost of assembling the stack on the shaft, isolates the stack and shaft from conveying vibration one to the other, and electrically grounds the stack to the shaft.

REFERENCES:
patent: 4777459 (1998-10-01), Dushkes et al.
patent: 5376850 (1994-12-01), Elsing et al.
patent: 5493462 (1996-02-01), Peter
patent: 5497281 (1996-03-01), Jewell et al.
patent: 5815345 (1998-09-01), Pelstring et al.
patent: 5844748 (1998-12-01), Dunfield et al.
patent: 5847476 (1998-12-01), Elsing et al.

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