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:
Feb. 19, 2019

Filed:

Nov. 20, 2015
Applicant:

Tesla Motors, Inc., Palo Alto, CA (US);

Inventors:

Konstantinos Laskaris, San Mateo, CA (US);

Andrew D. Baglino, San Francisco, CA (US);

Assignee:

TESLA, INC., Palo Alto, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K 15/00 (2006.01); H02K 17/16 (2006.01);
U.S. Cl.
CPC ...
H02K 17/16 (2013.01); H02K 15/0012 (2013.01);
Abstract

A method of making an AC induction motor includes: providing a rotor and a stator for the AC induction motor; determining, for different geometries of an end ring of the rotor, a location of a first centroid of current density in the end ring; determining, for end turns of the stator, a location of a second centroid of current density in the end turns; selecting a geometry for at least the endring of the rotor so that an axial distance between the first centroid of current density and the second centroid of current density is minimized; and assembling the AC induction motor, wherein the end turns and the end ring have the selected geometries.


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