Tesla, Inc.

Apple Inc.

Tesla Motors, Inc.

David Fred Nelson

Edwin Marcum Pearce, Jr

Gary Allen Pinkley

Jim Robbins

Scott Heines

James Michael Murphy

Augusto E Barton

Michael Balsamo

Kan Zhou

Dillon J Thomasson

Li Niu

Rui Guan

Leif E Olsen

Kalonica Christie

Peter Dore Rawlinson

Nicholas Robert Kalayjian

Vincent George Johnston

Andrew David Baglino

Michael Raj Kubba

Benjamin David Dettmann

Shyi-Perng Phillip Luan

Christopher Edwards

Nicholas John Sampson

Konstantinos Laskaris

Wulfer Adrijan De Bruijn

Nicolas Verzeni

William Randall Fong

Chad Furey

A stator for an electric motor is described. An example stator includes a stator core having teeth that are radially arranged about a common central axis of the stator and located in a spaced apart manner from one another. Each tooth has an inward portion and an outward portion. The example stator further includes an electrically transmissive coil of wire that is wound contiguously upon the inward portions of at least a subset of teeth from the plurality of teeth. The stator also includes wedge members that are radially arranged about the common central axis and located intermittently with the plurality of teeth such that each wedge member abuts with the outward portions of adjacently located teeth.

Stator for an electric motor

An electric motor includes: a housing having a first rotor bearing and a stator support surface; a cantilever stator that includes a lamination stack, a first side of the lamination stack abutting the stator support surface and a second side of the lamination stack abutting a stator endbell that has a second rotor bearing, wherein the cantilever stator is held by way of tie rods attaching the stator endbell to the housing; and a rotor in the cantilever stator, the rotor held by the first and second rotor bearings.

Cantilever stator

An electric motor includes a configuration that directs at least a portion of an electric field generated by phase windings into a stator.

Electric motor with shielded phase windings

An electric motor includes: a stator; a shaft; a rotor mounted on the shaft, the rotor having an end ring that is concentric with the shaft; and a flux shield around the shaft inside the end ring.

Flux shield for electric motor

A liquid cooling system for an electric motor includes: a pump for liquid to cool the electric motor; a heat exchanger that removes heat from the liquid; a manifold extending above a stator of the electric motor, the manifold receiving the liquid under pressure and having a first opening that directs a first liquid jet onto the stator; and a first tray above first end turns of the stator, the manifold having a second opening that directs a second liquid jet onto the first tray, the first tray having a third opening that performs gravity-fed liquid distribution onto the first end turns.

Pressurized and gravity-fed liquid cooling of electric motor

An integrated drive system assembly is provided that combines an electric motor, a power inverter assembly and a gearbox into a single, multi-piece enclosure. Combining these components into a single enclosure reduces weight, reduces drive system complexity, reduces system volume, simplifies assembly integration into an electric vehicle, reduces manufacturing cost, allows the flexible and lengthy electrical cables between the power inverter and the electric motor to be replaced with short, low loss, rigid bus bars, and simplifies component cooling by allowing the use of a common thermal management system, i.e., a mutual thermal management system. The common thermal management system includes a liquid coolant loop that is thermally coupled to the electric motor, the power inverter assembly and the gearbox.

Thermal management system for use with an integrated motor assembly

Growing community of inventors

Menlo Park, CA, United States of America

David Fred Nelson