Title:
MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/120588
Kind Code:
A1
Abstract:
Provided is a compact, vibration- and noise-reducing motor drive device used in, for example, an electric power steering device for a vehicle. A motor drive control device (30) comprises: a heat sink (50) and a housing (40). The heat sink is arranged on a front or rear side of a motor (10), a switching element (73) for performing a drive control for the motor being mounted in the heat sink. The housing is joined to the heat sink, and either couples the heat sink to a frame or covers the switching element mounted in the heat sink. The surface (110) of contact of the heat sink with the housing is in a single plane intersecting the direction of the axis of rotation of the motor; and threaded holes (42, 52) for joining the frame, the heat sink, and the housing together are provided so as to be in positional alignment in the circumferential direction.
Inventors:
NAKANO MASATSUGU (JP)
ASAO YOSHIHITO (JP)
SONODA ISAO (JP)
ASAO YOSHIHITO (JP)
SONODA ISAO (JP)
Application Number:
PCT/JP2011/055053
Publication Date:
September 13, 2012
Filing Date:
March 04, 2011
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
NAKANO MASATSUGU (JP)
ASAO YOSHIHITO (JP)
SONODA ISAO (JP)
NAKANO MASATSUGU (JP)
ASAO YOSHIHITO (JP)
SONODA ISAO (JP)
International Classes:
H02K5/24; H02K19/02
Foreign References:
| JP2009248864A | 2009-10-29 | |||
| JP2000023417A | 2000-01-21 | |||
| JP2001054271A | 2001-02-23 |
Other References:
See also references of EP 2683061A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Masuo Oiwa (JP)
Masuo Oiwa (JP)
Download PDF:
Claims: