Seiko Epson Corporation

Tokyo R & D Co., Ltd.

Tamotsu Fukazawa

Issei Yamakoshi

Masao Ono

Ken-ichi Endo

Takeshi Seto

Kunihiko Takagi

Akihito Uetake

Haruki Torizuka

Shinji Okayama

Hiroaki Nakahara

A running motor () used for vehicles is provided with a stator (), a rotor () and a housing () for holding them, wherein the rotor has a support member () for preventing rotor magnets () from separating from a laminated steel sheet (), the laminated steel sheet has a plurality of first steel sheets () each formed slots () through which the rotor magnets are inserted respectively and a second steel sheet () to which the insertion ends of the rotor magnets are pressed, and the plurality of first steel sheets and the second steel sheet are configured to have mutually the same contour. The housing includes a control () for supplying a coil () of the motor with power and a sensor () for detecting a position of the rotor. Further, the housing includes a first housing member () for covering the stator and the rotor, a second housing member () for dividing the interior of the housing, and a third housing member () for covering the control. A bearing () for the rotor is fitted to the first housing member and the second housing member, respectively.

Motor having housing member

Battery control system for electric vehicle

An electric power apparatus and a power transmitting apparatus of an electric vehicle are each constructed as a unit structure to improve the overall range and reliability of the electric vehicle. In the electric vehicle including, as a power system, a battery power supply, a motor, and a controller for controlling rotation of the motor, an electric power unit comprises a plurality of storage cells making up the battery power supply, a case housing the storage cells, a motor driving circuit and a charger both mounted on the case, a plate substrate covering the storage cells, and sockets for connecting respective terminals of the storage cells, the motor driving circuit and the charger. Also, in the electric vehicle including, as a driving system, a motor, a clutch, a transmission, and a power transmitting mechanism, a power transmitting unit comprises an automatic multiple-speed clutch transmission including a dog clutch, and the dog clutch comprises a clutch movable portion including a permanent magnet, and a clutch driving portion including excitation coils.

Electric power unit and power transmitting unit for electric vehicles

Growing community of inventors

Yokohama, Japan

Tamotsu Fukazawa