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.:
Date of Patent:
Mar. 10, 2020
Filed:
Nov. 30, 2017
Tesla, Inc., Palo Alto, CA (US);
Bozhi Yang, Santa Clara, CA (US);
Tomas Vianna Martins, San Francisco, CA (US);
Scott Michael Graves, Felton, CA (US);
Ethan Swint, Sunnyvale, CA (US);
Eric Bellemare, Mountain View, CA (US);
Lev Fedoseyev, San Jose, CA (US);
Benjamin Dellal, San Francisco, CA (US);
Leif E. Olsen, Menlo Park, CA (US);
Alexander Hain, Frankfurt Höchst, DE;
Tesla, Inc., Palo Alto, CA (US);
Abstract
An electric motor includes a case, a stator that includes end-windings, a rotor coupled to the case via at least one rotor bearing, at least one drive motor fluid pump, and drive motor electronics. The rotor includes a hollow cylindrical body, a first shaft portion, and a second shaft portion, a fluid feed tube having a fluid receive end and a fluid feed end, the fluid feed end extending into the hollow cylindrical body, and a plurality of fluid exit ports. The drive motor electronics power the stator with or without causing rotation of the rotor. The drive motor fluid pump pumps fluid into the hollow cylindrical body via the fluid feed tube, pumps the fluid out of the plurality of fluid ports, and onto the stator end-windings to collect heat from the rotor and the stator. The heated fluid may be used for heating a battery.