ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE EQUIPPED WITH SAME

WIPO Patent Application WO/2011/142050

A1

A control device (3) for controlling an electric motor (2) is disposed on the rotor axis (30) of the electric motor (2). The control device (3) comprises semiconductor switching elements (15) constituting a three-phase bridge circuit for controlling the current flowing through the electric motor (2) and capacitors (13) for suppressing the ripple component of the current flowing through the electric motor (2). The semiconductor switching elements (15) and the capacitors (13) make pairs with the respective arms of the three-phase bridge circuit and are disposed in a concentric fashion. Therefore, the impedance of the three-phase bridge circuit for controlling the current flowing through the electric motor (2) is reduced, the ripple is effectively absorbed, and the power efficiency of a driving device is improved.

WO/2005/022725	AN ALTERNATOR ASSEMBLY
WO/2008/104345	ELECTRIC MOTOR
JP01264546	MOTOR PREVENTED FROM BURNING

OMAE Katsuhiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
大前　勝彦 (〒10 東京都千代田区丸の内二丁目７番３号　三菱電機株式会社内 Tokyo, 〒1008310, JP)
TOMINAGA Tsutomu (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)

JP2010/068691

November 17, 2011

October 22, 2010

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Mitsubishi Electric Corporation (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
OMAE Katsuhiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
大前　勝彦 (〒10 東京都千代田区丸の内二丁目７番３号　三菱電機株式会社内 Tokyo, 〒1008310, JP)

H02K11/00; B62D5/04; B62D6/00

OIWA Masuo et al. (14-1, Minamitsukaguchi-cho 2-chome Amagasaki-sh, Hyogo 12, 〒6610012, JP)

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