Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-11-10
1988-08-09
Salce, Patrick R.
Electrical generator or motor structure
Dynamoelectric
Rotary
29835, 310DIG6, 336200, 361400, H01F 500, H02K 326
Patent
active
047630353
ABSTRACT:
A strip of electrically insulating foil (15) is subdivided into successive foil parts (23) separated by folding lines (21) and folded against each other along the folding lines. Each foil part has on one of its major surfaces a conductor track (25) which forms a curved meander-like line extending in a number of pole-forming curves (33) connected by connection members (31). The conductor tracks (25) on the foil parts (23) are connected together by connection tracks (27). The curves (33) cooperate with the connection tracks (27) and the connection members (31) to form coils arranged in a circle. The winding is particularly suitable as a stator winding for a flat direct current motor. The winding can be manufactured without loss of material in that the long sides of the foil strip (15) are crenellated so that the strip comprises a succession of wide (17) and narrow (19) rectangles, the folding lines (21), viewed in the longitudinal direction of the strip, extending alternately from one long side of the strip to the other, and conversely. Each folding line extends from a corner point of a narrow rectangle present on one of the long sides to a corner point of the next narrow rectangle present on the oppositely located long side so that the foil parts (23) have the form of parts of an octagon having a central aperture (35).
REFERENCES:
patent: 2014524 (1935-09-01), Franz
patent: 2874360 (1959-02-01), Eisler
patent: 2911605 (1959-11-01), Wales, Jr.
patent: 2961747 (1960-11-01), Lyman
patent: 4621231 (1986-11-01), Heinrich et al.
patent: 4651254 (1987-03-01), Brede et al.
Faller F. Brice
Rebsch D. L.
Salce Patrick R.
U.S. Philips Corporation
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