A heat radiation base body extending in a direction of a rotation shaft of an electric motor close to the rotation shaft is provided at an end surface of a motor housing accommodating the electric motor. A board of one electronic control unit of a redundant system is fixed to the heat radiation base body along the direction in which heat radiation base body extends with thermal conduction allowed. A board of the other electronic control unit of redundant system is fixed to the heat radiation base body along a direction in which the heat radiation base body extends, so as to face the board of one electronic control unit, with thermal conduction allowed. A cover covering these is fixed to an end surface of the motor housing without a bolt. Thus, a housing accommodating the electronic control unit is not necessary. A sealing part is only the connecting portion between the motor housing and cover, thereby eliminating additional structure of the sealing part, sealing component required for seal and bolt.
Electric drive device and electric power steering device
2020-06-02
Patent
Elektronische Ressource
Englisch
ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2022
|Electric drive device and electric power steering device
Europäisches Patentamt | 2022
|Electric drive device and electric power steering device
Europäisches Patentamt | 2020
|ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2019
|ELECTRIC DRIVE DEVICE AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2019
|