Dynamoelectric machine and processes for making the same

Details Dynamoelectric machine and processes for making the same Dynamoelectric machine and processes for making the same

1998-01-29

2000-12-19

Martin-Wallace, Valencia

Metal working

Method of mechanical manufacture

Electrical device making

29597, 29598, 296021, 29606, 310 40R, 310 42, 310 49R, 310 90, 310158, 310248, H02K 1500, H02K 1514, H02K 1516

Patent

active

06161274&

ABSTRACT:
Disclosed are methods of making dynamoelectric machines which include use of two sheet metal cup-shaped members to form a housing that completely surrounds and encloses the stator. The stator is assembled with a can in such a manner that the core of the stator is completely contained within the can. Thereafter, a cap is positioned at the exposed face of the stator and the cap and can are joined together by a sheet metal fastening technique which displaces material from one superposed sheet into a second sheet of material. The can and cap are precision formed so that they will have precision sized and located bearing receivers and core retention regions. Both the cap and the can are provided with multiple flange locations which are utilized for fastening the can and cap together during the assembly process. The cap is also provided with a notch which accommodates a lead protecting grommet that preferably is held in place by one or more bosses or pins that are fastened in openings in still another flange formed on the can.

REFERENCES:
patent: 4539745 (1985-09-01), Manson
patent: 4688324 (1987-08-01), Morrill
patent: 4806811 (1989-02-01), Mayumi et al.
patent: 4829208 (1989-05-01), Uchino
patent: 4853572 (1989-08-01), Morrill
patent: 4862581 (1989-09-01), Royer
patent: 4949000 (1990-08-01), Petersen
patent: 5256926 (1993-10-01), Hegenlocher et al.
patent: 5430931 (1995-07-01), Fisher et al.
patent: 5758404 (1998-06-01), Baumann et al.

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