Frame and magnet assembly for a dynamoelectric machine

Details Frame and magnet assembly for a dynamoelectric machine Frame and magnet assembly for a dynamoelectric machine

1990-05-25

1991-04-02

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264104, 26427214, 26427219, 2643281, 26432814, H22K 2136, B29C 4514, B32B 108

Patent

active

050045776

ABSTRACT:
A frame and permanent magnet assembly for a dynamoelectric machine where the frame carries a plurality of permanent magnets. The frame is formed of iron powder particles that are bound together by a thermoplastic material. In the manufacture of the assembly, iron powder particles that are coated with a thermoplastic material are molded to the permanent magnets. The permanent magnets have surfaces that are interlocked to the material of the frame thereby eliminating the need for mechanical fasteners or an adhesive to secure the permanent magnets to a frame.

REFERENCES:
patent: 3500090 (1970-03-01), Baermann
patent: 3567979 (1971-03-01), Jaffe et al.
patent: 3594599 (1971-07-01), West
patent: 3988623 (1976-10-01), Yamaguchi et al.
patent: 4071788 (1978-01-01), Martin et al.
patent: 4155021 (1979-05-01), Corbach et al.
patent: 4250423 (1981-02-01), Linscott, Jr.
patent: 4296343 (1981-10-01), McMillen
patent: 4625392 (1986-12-01), Stokes
patent: 4769624 (1988-09-01), Merritt et al.
patent: 4832891 (1989-05-01), Kass
Kordecki et al., "Properties and Applications of soft magnetic powder composites," Powder Metallurgy vol. 25, No. 4, 1982, pp. 201-208.

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