| 摘要 |
PCT No. PCT/DE95/00326 Sec. 371 Date Oct. 26, 1995 Sec. 102(e) Date Oct. 26, 1995 PCT Filed Mar. 9, 1995 PCT Pub. No. WO95/25885 PCT Pub. Date Sep. 28, 1995The unit has an electric motor (18) with a rotor (26) which is formed of an armature (40) and a plan commutator (32) and which is at least partially encased by a plastic casing (50, 62). The plan commutator (32) has a plurality of segments (52) which are separated from one another by slots (56) extending along the longitudinal axis (28) of the rotor (26) and which are connected with the armature (40). The casing (50) extends in the direction of the longitudinal axis (28) of the rotor (26) only so far that it does not cover the slots (56). Connection wires (60) for connecting with the armature (40) are arranged at the outer surfaces (54) of the segments (52). The casing (50) has portions (62) which extend in the direction of the longitudinal axis (28) of the rotor (26) over the base of the slots (56) until the connection wires (60) are covered by the portions (62). The portions (62) are so constructed that they have no undercuts away from a longitudinal center plane (70) containing the longitudinal axis (28) of the rotor (26) in directions normal to the longitudinal center plane (70).
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