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Title:
CONTROL DEVICE, MOTOR, AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/064900
Kind Code:
A1
Abstract:
A control device which comprises a three-phase inverter that drives a motor, and which is provided with a circuit board and a plurality of power elements that are mounted on the circuit board and constitute the three-phase inverter. This control device comprises: a first power element which is mounted on a first mounting surface of the circuit board, said first mounting surface being on one side of the circuit board; a second power element which is mounted on a second mounting surface that is on the reverse side of the first mounting surface; and a heat sink which is thermally in contact with the first power element and the second power element. This control device has an element pair that is composed of the first power element and the second power element, which are mounted in positions where the power elements overlap with each other at least partially when viewed from a direction that is perpendicular to the plane direction of the circuit board.

Inventors:
YAMASHITA, Yoshiaki (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
OGAWA, Hiroshi (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
Application Number:
JP2018/028640
Publication Date:
April 04, 2019
Filing Date:
July 31, 2018
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
International Classes:
H02M7/48; B62D5/04; H02K11/33
Domestic Patent References:
WO2017154075A12017-09-14
Foreign References:
JP2013021878A2013-01-31
JP2016076563A2016-05-12
JP2017131058A2017-07-27
JP2010016947A2010-01-21
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