| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric motor capable of preventing generation of a shaft voltage with a simple structure while reducing the amount of insulation material used and the cost.SOLUTION: The electric motor includes: a motor main body; a stator having a stator coil which is wound in a slot in a stator core being interposed by a slot insulation paper and is fixed to the motor main body; and a rotor which is disposed including a predetermined air gap from the stator with a rotary shaft rotatably supported by the motor main body via a bearing. An inverter device controls to drive the stator coil. A holding groove is formed in a portion of the slot at a predetermined dimension inner side from the end at the rotor side in the stator core to insert a wedge of an electrical insulation material into the holding groove to be held thereby. |
