SPEED CONTROL METHOD FOR THREE PHASE MOTOR CONTROLLER USING FOUR SWITCHING ELEMENTS

摘要

The invention relates to an electrical motor (3) comprising a pot-shaped housing (5) to accommodate a shaft (11) and a hood (6) to close the housing (5). The hood (6) of the motor has a peripheral section (6a) extending in a substantially radial direction in relation to the shaft (11) and an inner section (6b) extending in a substantially axial direction in relation to the shaft (11). The inner section (6b) radially encompasses at least a bearing (13) for locating the shaft (11). The electrical motor (3) is fixed on a connecting block (35) for connection to a unit (4), which is to be driven. The peripheral section (6a) of the hood (6) of the motor and the connecting block (35) contact each other on a support (55). The housing (5) and the connecting block (35) are axially locked with each other by means of a locking element (58). The peripheral section (6a) of the hood (6) of the motor is axially fixed on the housing (5) of the motor.