Title:
DC MOTOR, EGR VALVE, VG ACTUATOR, AND WASTEGATE ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2018/193616
Kind Code:
A1
Abstract:
A DC motor is provided with: a rotor portion (30) having a sensor magnet (7) attached to one end in an axial direction; a sensor portion (8) for sensing leakage magnetic flux from the sensor magnet (7) to detect the rotational position of the rotor portion (30) and output a signal; a control circuit portion (10) for controlling the rotation of the rotor portion (30) on the basis of the signal obtained from the sensor portion (8); and a partition wall (20) for partitioning a first space A in which the rotor portion (30) is disposed and a second space B in which the control circuit portion (10) is disposed. The sensor portion (8) is disposed on a surface of the partition wall (20) on the first space A side at a position above the shaft of the rotor portion (30) and faces the sensor magnet (7).
Inventors:
NISHIMORI YUYA (JP)
Application Number:
PCT/JP2017/016035
Publication Date:
October 25, 2018
Filing Date:
April 21, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K29/08; H02K11/215
Domestic Patent References:
| WO2016117114A1 | 2016-07-28 |
Foreign References:
| JP2014117005A | 2014-06-26 | |||
| JP2016197978A | 2016-11-24 | |||
| JP2010136588A | 2010-06-17 | |||
| JP2013090532A | 2013-05-13 | |||
| US20140020491A1 | 2014-01-23 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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