Title:
ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/043193
Kind Code:
A1
Abstract:
In the present invention: two positive-electrode-side power supply paths (32, 33) are provided to extend from the outer edge side of a mounting substrate (19) toward the inside; power conversion circuits (36, 37, 44, 45, 46, 47) that control and drive an electric motor are provided at the both sides of the mounting substrate by using the positive-electrode-side power supply paths as references; and further, output terminals (52, 53) connecting to the electric motor are provided on the mounting substrate at the outer sides of the power conversion circuits. Accordingly, since the power conversion circuits are provided from the center toward the circumferential edge portion of the mounting substrate, the wiring distance can be shortened, the mounting area of the mounting substrate (19) can be reduced, and thereby, radial upsizing of a mounting substrate having redundant power conversion circuits mounted thereon can be suppressed.
Inventors:
YATSUGI TOMISHIGE (JP)
SAKAI TOSHIHIKO (JP)
SAKAI TOSHIHIKO (JP)
Application Number:
PCT/JP2016/071484
Publication Date:
March 16, 2017
Filing Date:
July 22, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02K11/33; B62D5/04; H02M7/493
Domestic Patent References:
| WO2014171023A1 | 2014-10-23 |
Foreign References:
| JP2015116095A | 2015-06-22 | |||
| JP2008118753A | 2008-05-22 | |||
| JP2004040877A | 2004-02-05 | |||
| JP2009081993A | 2009-04-16 | |||
| JP2013251991A | 2013-12-12 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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