Elektromotor, insbesondere Antriebsmotor für eine Faß- oder Behälterpumpe

摘要

An electrical motor comprises an encapsulated motor housing (11) which is closed at both ends by bearing plates (13, 14) and in use is connected to earth potential. Arranged in the housing are a stator (18) and a rotor (20) with a rotor shaft (22), which is rotatably mounted in the bearing plates and extends out of the housing at both ends. A fan wheel (32), which is covered by a cap (34), is arranged on the shaft (22) outside the housing at an end remote from a drive output end. The cap encloses the adjacent bearing plate (4) and forms cooling air outflow paths for guidance of cooling air from the fan wheel to and over those regions of the housing (11) which surround the stator and the rotor. A mounting plate (15), through which the shaft (22) extends and which receives electrical connecting and switching elements (46, 47) arranged peripherally to the shaft, is arranged within the housing remote from the drive output side. Electrical supply lines (50) are led from these connecting and switching elements out of the motor housing by way of pressure-tight feedthroughs (51).