Electrical machine e.g. universal motor, for use in power tool, has heat conducting unit provided in area of front side of armature and formed as single piece with fan impeller, where fan impeller is supported on armature shaft

摘要

The machine has a heat conducting unit (75) provided in an area of a front side of an armature (40). A fan impeller (76) is provided, supported on an armature shaft (22) in a torque proof manner and connected with the armature by using the heat conducting unit in a heat conducting manner. The heat conducting unit is formed as a single piece with the fan impeller. An exhaust wheel has recesses, into which the heat conducting unit is provided.