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Title:
DRIVING CONTROL DEVICE OF ELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JP2012200070
Kind Code:
A
Abstract:

To sufficiently reduce a height of a driving control device in a vertical direction to miniaturize the whole device and improve a degree of freedom of layout.

In a driving control device driving and controlling an electric motor of an electric power steering device, a power electronic circuit supplying a power to the electric motor and a filter electronic circuit removing an electromagnetic noise at energization are formed integrally to a bus bar assembly 13 molded from a resin material, and a control substrate 14 configuring a control circuit controlling to drive the electric motor is polymerized and arranged to the bus bar assembly. Six semiconductor switch elements 21 arranged to a lower surface of the bus bar assembly are held in a holding state between the bus bar assembly and a swollen part 5 of a plate-like housing main body 3 that is a heat radiation member via two heat radiation sheets 9.


Inventors:
MOTODA HARUAKI
Application Number:
JP2011061997A
Publication Date:
October 18, 2012
Filing Date:
March 22, 2011
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
H02K11/00; B62D5/04; H02P29/00
Domestic Patent References:
JP2008290615A2008-12-04
JP2005217174A2005-08-11
JP2009224707A2009-10-01
JP2008125315A2008-05-29
JP2012060805A2012-03-22
JP2005304203A2005-10-27
JP2007306671A2007-11-22
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi