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.

Date of Patent:
Jun. 24, 2025

Filed:

Sep. 09, 2022
Applicant:

Carrier Japan Corporation, Tokyo, JP;

Inventors:

Hiroaki Matsumoto, Fuji, JP;

Toshiyuki Morimoto, Fuji, JP;

Yasuharu Hayasaka, Fuji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 13/00 (2006.01); F25B 31/02 (2006.01); F25B 49/02 (2006.01);
U.S. Cl.
CPC ...
F25B 49/025 (2013.01); F25B 13/00 (2013.01); F25B 31/026 (2013.01);
Abstract

According to one embodiment, a refrigeration cycle apparatus includes a motor which including a plurality of phase windings in a mutually unconnected state, a first inverter which controls application of electric power to one ends of the phase windings, a second inverter which controls application of electric power to the other ends of the phase windings, switches connected between the other ends of the phase windings, and a motor controller which selectively sets one of an open-windings mode and a star-connection mode. The motor controller sets, at the time of startup of the motor, the open-windings mode.


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