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:
Jan. 02, 2024

Filed:

Jun. 13, 2022
Applicant:

American Axle & Manufacturing, Inc., Detroit, MI (US);

Inventors:

James P. Downs, South Lyon, MI (US);

David Crecelius, Cicero, IN (US);

Jeffrey J. Ronning, Grosse Pointe Farms, MI (US);

Paul J. Valente, Berkley, MI (US);

John C. Morgante, Sterling Heights, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01); H02K 1/16 (2006.01); H02K 1/20 (2006.01); H02K 11/00 (2016.01); H02K 11/27 (2016.01); H02K 11/33 (2016.01); H02K 5/15 (2006.01); H02K 5/20 (2006.01); H02K 7/116 (2006.01); H02K 9/19 (2006.01); H02K 9/22 (2006.01); H02K 5/22 (2006.01); H01L 23/373 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49568 (2013.01); H02K 1/16 (2013.01); H02K 1/20 (2013.01); H02K 5/15 (2013.01); H02K 5/203 (2021.01); H02K 5/225 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01); H02K 9/227 (2021.01); H02K 11/00 (2013.01); H02K 11/27 (2016.01); H02K 11/33 (2016.01); H01L 23/3736 (2013.01); H01L 23/49513 (2013.01); H01L 23/49562 (2013.01); H01L 24/48 (2013.01); H01L 24/73 (2013.01); H01L 24/92 (2013.01); H01L 2224/48175 (2013.01); H01L 2224/73265 (2013.01); H01L 2224/92247 (2013.01); H01L 2924/13091 (2013.01); H02K 2211/03 (2013.01);
Abstract

An electric drive unit having a stator, a rotor received in the stator and rotatable about a central longitudinal axis, and an inverter assembly that includes a plurality of power semiconductors, a plurality of heat sinks and an end plate. The power semiconductors are thermally coupled to the heat sinks. Each of the heat sinks has a plurality of fins that extend into a flow channel that is coaxial with the plurality of sets of field windings. The end plate is coupled to the power semiconductors and has a projection, which is sealingly coupled to the stator and which and partly defines an annular cavity, and a coolant port that is coupled in fluid communication with the annular cavity. The flow channel is in fluid communication with and disposed in a flow path between the annular cavity and the cooling channels in the stator body.


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