Title:
SWITCHING DEVICE FOR AC MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/120568
Kind Code:
A1
Abstract:
A switching device (10) for an AC motor is a device for controlling switching of an AC motor (4), and comprises a switching unit (20) for switching the connection state of multi-phase windings (71, 72, 73). The switching unit (20) switches to a first state, a second state, and a third state. The first state is a state which allows conduction control for each of first windings (71A, 72A, 73A) of each phase, and blocks conduction control for each of second windings (71B, 72B, 73B). The second state is a state which allows conduction control for each of the second windings (71B, 72B, 73B) of each phase, and blocks conduction control for each of the first windings (71A, 72A, 73A). The third state is a state which allows conduction control for the first windings (71A, 72A, 73A) and the second windings (71B, 72B, 73B).
Inventors:
ISHIHARA KANZO (JP)
Application Number:
PCT/JP2022/047066
Publication Date:
June 29, 2023
Filing Date:
December 21, 2022
Export Citation:
Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H02P25/18
Foreign References:
| JP2012227980A | 2012-11-15 |
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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