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Patent Searching and Data


Title:
MOTOR MODULE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/070065
Kind Code:
A1
Abstract:
Provided is a motor module that can suppress reductions in motor output when a power supply system and/or an inverter has failed. This motor module 1000 comprises: a motor 200 that has n phases of windings (n being an integer that is 3 or greater); a first circuit board CB1 that is connected to a first power supply 410; a first inverter 120 that is mounted on the first circuit board and connected to one end of the winding of each phase of the motor; a power system power supply circuit that is mounted on the first circuit board and steps the power supply voltage of the first power supply up or down; a first heat sink 511 that is thermally coupled to the first circuit board; a second circuit board CB2 that is connected to a second power supply 420; and a second inverter 130 that is mounted on the second circuit board and connected to the other end of the winding of each phase of the motor.

Inventors:
ENDO SHUJI (JP)
OHASHI HIROMITSU (JP)
Application Number:
PCT/JP2018/037425
Publication Date:
April 11, 2019
Filing Date:
October 05, 2018
Export Citation:
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Assignee:
NIDEC CORP (JP)
International Classes:
H02K11/33; B62D5/04; H02P4/00; H02P25/18; H02P27/06
Domestic Patent References:
WO2017017747A12017-02-02
WO2016117144A12016-07-28
WO2017158966A12017-09-21
Foreign References:
JP2016131426A2016-07-21
JP2016152764A2016-08-22
JP2013062959A2013-04-04
JP2017191093A2017-10-19
US20140265670A12014-09-18
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