The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2026
Filed:
Dec. 21, 2022
Autonetworks Technologies, Ltd., Yokkaichi, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Kanzo Ishihara, Osaka, JP;
AutoNetworks Technologies, Ltd., Yokkaichi, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A switching device for an AC motor is a device for controlling switching of an AC motor, and includes a switching unit that switches a connection state of a plurality of phase windings. The switching unit switches between a first state, a second state, and a third state. The first state is a state in which electrical conduction control on first windings of the phases is allowed, and electrical conduction control on second windings is blocked. The second state is a state in which electrical conduction control on the second windings of the phases is allowed, and electrical conduction control on the first windings is blocked. The third state is a state in which electrical conduction control on the first windings and the second windings is allowed.