Title:
WINDING SWITCHING DEVICE, AND ROTATING ELECTRICAL MACHINE DRIVE SYSTEM USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/049249
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a winding switching device with which the reliability of electrical contact between a movable part and a fixed part can be improved; and a rotating electrical machine drive system equipped with such a winding switching device. A winding switching device (4) switches a connection state of multiple windings, and comprises: a plurality of electrodes (U1-U4) to which a plurality of windings (7, 8) are connected; a movable part (10) that has a plurality of conductors (9a, 9b) which contact the plurality of electrodes, and that is driven in a prescribed direction in which the plurality of electrodes are aligned; and a fixed part (11) that has a restriction part (11b) which restricts the movement of the movable part in the prescribed direction. The connection state of the plurality of windings is switched according to the position of the movable part, and the movable part, when moving in the prescribed direction, is displaced by the restriction part in a direction in which the plurality of conductors separate from the plurality of electrodes.
More Like This:
| WO/2009/030542 | ELECTRICAL MACHINE |
| WO/2006/111252 | HEAT TREATMENT OF METAL WORK PIECES |
Inventors:
NISHIHAMA KAZUO (JP)
TAKAHASHI AKESHI (JP)
HOSHINO KATSUHIRO (JP)
MAEKAWA NORIYUKI (JP)
TAKAHASHI AKESHI (JP)
HOSHINO KATSUHIRO (JP)
MAEKAWA NORIYUKI (JP)
Application Number:
PCT/JP2020/030847
Publication Date:
March 18, 2021
Filing Date:
August 14, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02P25/18; H02K7/20
Domestic Patent References:
| WO2019167379A1 | 2019-09-06 |
Foreign References:
| JP2009278841A | 2009-11-26 | |||
| JP2017070112A | 2017-04-06 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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