| 摘要 |
Disclosed is a method for sheathing an armature (14) for electric machines (10), in which a stack of lamellae (18) that is equipped with grooves (46) for armature windings (20) is mounted on an armature shaft (16) by means of a bore (36) and is provided with at least one groove insulation (48) with the aid of the sheathing process. The plastic flows through ducts (42) that extend along the bore (36) of the stack of lamellae (18) and the surface of the armature shaft (16). The plastic is molded in only on a first face (38) of the stack of lamellae (18), from which the plastic flows into the grooves (46) and through the ducts (42). The plastic invades the grooves (46) also from the second face (40) after being discharged from the ducts (42) on said second face (40) and converges with the plastic discharged from the first face (38). The inventive method has the advantage of technically implementing fixing and insulation of the grooves of the stack of lamellae of an armature of an efficiency-optimized small electric motor or electric machine while the groove insulation is provided with a minimum layer thickness for such sheathings at the bottom thereof in order to allow for maximum copper fillings. |
