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 11930709 B1

Date of Patent:

Mar. 12, 2024

Filed:

Jan. 11, 2022

Electrical machine and power electronics converter

Applicant:

Rolls-royce Plc, London, GB;

Inventor:

Ellis F H Chong, Derby, GB;

Assignee:

Rolls-Royce PLC, London, GB;

Attorney:

Primary Examiner:

Burton S Mullins

Int. Cl.

CPC ...

H10N 15/20 (2023.01); B64D 27/10 (2006.01); B64D 27/24 (2006.01); B64D 41/00 (2006.01); F02C 6/00 (2006.01); H02K 5/20 (2006.01); H02K 9/19 (2006.01); H02K 9/22 (2006.01); H02K 11/33 (2016.01); H02K 21/14 (2006.01); H02K 99/00 (2014.01); H02N 11/00 (2006.01); B64D 27/02 (2006.01);

U.S. Cl.

CPC ...

H10N 15/20 (2023.02); B64D 27/10 (2013.01); B64D 27/24 (2013.01); B64D 41/00 (2013.01); F02C 6/00 (2013.01); H02K 5/203 (2021.01); H02K 9/19 (2013.01); H02K 9/227 (2021.01); H02K 11/33 (2016.01); H02K 21/14 (2013.01); B64D 2027/026 (2013.01); B64D 2041/002 (2013.01); F05D 2220/323 (2013.01);

Abstract

Integrated arrangements of electrical machines and power electronics converters are described. One such arrangement comprises: an electrical machine comprising one or more windings; a power electronics converter arranged to supply current to or receive current from the one or more windings of the electrical machine; a magnetocaloric effect (MCE) material in thermal contact with the power electronics converter; and a heat sink for removing heat from the MCE material. The MCE material is arranged in proximity to the one or more windings of the electrical machine whereby, in use, stray magnetic flux from the windings of the electrical machine passes through the MCE material and activates the MCE material. The repeated application and removal of the stray flux during normal operation of the electrical machine creates cycles of magnetic refrigeration, which removes heat from the power electronics converter.

Find Patent Forward Citations