| 摘要 |
The winding comprises a strip of an electrically insulating foil (15) which is subdivided into successive foil parts (23) which are separated by folding lines (21) and which are folded against each other along the folding lines. Each foil part comprises on one of its major surfaces a conductor track (25) which forms a curved meander-like line extending in a number of 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) so as 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). |
