| 摘要 |
The annular magnet (11, 12, 13, 17) consists of the individual parts which surround, in a U-shaped arrangement, the winding (13), whereby in particular the lateral members (11, 12) are held together radially by a plastic jacket (14) which also insulates the winding (13) and engages radially in the gaps of the arrangement of lateral members (11, 12) with projections (15) through which pass axially distance pieces (8) or screws (9) and possibly also individual pressure springs (18). The shaping and precision machining for the conventional magnetic ring are economized or strongly reduced and in addition the assembly operation is simplified in various ways. |
