Title:
ELECTRIC VEHICLE DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/031042
Kind Code:
A1
Abstract:
The electric vehicle drive device according to the present invention includes: a first motor having a first rotor, a first stator, and a first coil; a second motor having a second rotor, a second stator, and a second coil; and a transmission device to which motive power of at least one of the first motor and the second motor is transmitted. A plane passing through a first end portion and orthogonal to the rotation axis is defined as a first plane, the first end portion being an end portion located at the extreme end in the axial direction among the end portion of the first rotor, the end portion of the first stator, and the end portion of the first coil in the axial direction. A plane that passes through a second end portion located at the extreme end opposite to the first end portion in the axial direction and is orthogonal to the rotation axis is defined as a second plane. At least a part of the second rotor, at least a part of the second stator or at least a part of the second coil is located between the first plane and the second plane.
Inventors:
MATSUDA YASUYUKI (JP)
GUNJI DAISUKE (JP)
YAMAMOTO SHIN (JP)
GUNJI DAISUKE (JP)
YAMAMOTO SHIN (JP)
Application Number:
PCT/JP2018/021613
Publication Date:
February 14, 2019
Filing Date:
June 05, 2018
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
B60K7/00; F16H3/66; H02K7/116
Domestic Patent References:
| WO2012131953A1 | 2012-10-04 |
Foreign References:
| JP2013209074A | 2013-10-10 | |||
| JP2012183981A | 2012-09-27 | |||
| JP2005329817A | 2005-12-02 | |||
| JP2014019373A | 2014-02-03 | |||
| US6537167B1 | 2003-03-25 | |||
| JP2005033854A | 2005-02-03 | |||
| JP2013032804A | 2013-02-14 |
Other References:
ANONYMOUS: "Sleek EV Wheels: NSK tests thin-type motors", 12 October 2017 (2017-10-12), pages 1 - 3, XP055665196, Retrieved from the Internet
ODDEYE109: " ODDEYE109. Wheel hub motor fit cut model NSK Tokyo Motor Show 2017 Report", 24 November 2017 (2017-11-24), pages 1, XP054979215, Retrieved from the Internet [retrieved on 20180802]
See also references of EP 3666574A4
ODDEYE109: " ODDEYE109. Wheel hub motor fit cut model NSK Tokyo Motor Show 2017 Report", 24 November 2017 (2017-11-24), pages 1, XP054979215, Retrieved from the Internet
See also references of EP 3666574A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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