An electric drive device includes a motor housing made of aluminum-based metal and structured to house an electric motor. The motor housing includes an end face part opposite to an output part of a rotating shaft of the electric motor. An electronic control part is arranged at the end face part of the motor housing, and is configured to drive the electric motor. A metal cover is made of aluminum-based metal and structured to cover the electronic control part. One of the metal cover and the end face part of the motor housing includes an outer peripheral surface including a stepped portion having a radially inward recess form extending annularly. The stepped portion includes a fit portion where an opening portion of the metal cover is fitted. The fit portion is formed with a friction stir welding portion where the motor housing and the metal cover are welded together.
Electromotive Drive Device and Electrically-Powered Steering Device
2019-06-27
Patent
Electronic Resource
English
ELECTROMOTIVE DRIVE DEVICE AND ELECTRICALLY-POWERED STEERING DEVICE
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