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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.:

US 12674463 B1

PDFFull Text
Date of Patent:
Jul. 07, 2026

Filed:

Feb. 16, 2023

Electric compressor

Applicant:

Sanden Corporation, Gunma, JP;

Inventor:

Junki Kawata, Gunma, JP;

Assignee:

SANDEN CORPORATION, Gunma, JP;

Attorney:

Rankin, Hill & Clark LLP

Primary Examiner:

Peter J Bertheaud

Int. Cl.
CPC ...
F04D 27/00 (2006.01); F04B 35/04 (2006.01); F04B 49/06 (2006.01); F04B 49/20 (2006.01); F04D 25/06 (2006.01); F25B 1/04 (2006.01); F25B 31/02 (2006.01); F25B 49/02 (2006.01); H02P 6/18 (2016.01); H02P 21/18 (2016.01); H02P 21/22 (2016.01); H02P 21/24 (2016.01); H02P 21/36 (2016.01); H02P 23/14 (2006.01);
U.S. Cl.
CPC ...
F04D 27/004 (2013.01); F04B 35/04 (2013.01); F04B 49/06 (2013.01); F04B 49/065 (2013.01); F04B 49/20 (2013.01); F04D 25/06 (2013.01); F25B 1/04 (2013.01); F25B 31/026 (2013.01); F25B 49/025 (2013.01); H02P 6/18 (2013.01); H02P 21/18 (2016.02); H02P 21/22 (2016.02); H02P 21/24 (2016.02); H02P 21/36 (2016.02); H02P 23/14 (2013.01); F04B 2203/0201 (2013.01); F04B 2203/0202 (2013.01); F04B 2203/0209 (2013.01); F25B 2700/151 (2013.01); H02P 2207/05 (2013.01);
Abstract

An electric compressor includes a control unit configured to control drive of a motor. The control unit executes: synchronous deceleration control that is performed on conditions that a stop command for the motor has been inputted from the outside and that the number of rotations of a rotor is equal to or less than a predetermined first number of rotations and is greater than a predetermined second number of rotations, and decreases the number of rotations under forced synchronous control based on a current having a predetermined target current value; and stop control that is performed on condition that the number of rotations has reached the second number of rotations under the synchronous deceleration control, and stops rotation of the rotor under braking control that controls drive of predetermined switching element IGBTs of a plurality of switching elements in such a manner as to apply a load to the motor.

Find Patent Forward Citations

Kawata, Junki. (2026). Electric compressor (U.S. Patent No. 12674463). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12674463

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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