| 摘要 |
The invention describes a coil former for an electric motor, in particular a high-speed surgical motor, in which a rotor is surrounded concentrically by the substantially hollow-cylindrical coil former (10) which carries at least one stator winding. In order to ensure that as narrow an air gap as possible between the coil former, which is preferably produced using an injection-moulding method often with complex shaping, and a rotor which runs in the said coil former is permanently maintained, the invention comprises the special feature that the coil former (10) is formed either by a non-conductive fully ceramic body or is in the form of a composite body, in which at least one dimension-stabilizing frame element (30, 32) is embedded by injection moulding with plastic in a plastic body which is preferably produced by injection moulding. |
