US 11,894,736 B2Granted

Planar high torque electric motor

AssigneeIndiana University Research and Technology Corporation

InventorMatthew J. Rubin

Life of this patent

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Abstract

A motor includes: a stator having a plurality of electromagnets and a plurality of rolling elements arranged around the electromagnets; and a rotor having a plurality of rotor traction components arranged to engage the plurality of rolling elements; and a control circuit. The plurality of rolling elements are arranged relative to the plurality of rotor traction components to form a gap between the plurality of rolling elements and the plurality of rotor traction components. The control circuit is configured to activate the plurality of electromagnets to cause the rotor to pivot about a pivot point defined in a spherical bearing and change the gap such that the rotor compresses against the stator and the plurality of rolling elements and the plurality of rotor traction components translate the compression into tangential thrust and rotation of the rotor.

Claims20

Dependent claims

A motor, comprising:

a stator having a first plurality of stator traction components;
a first rotor having a first plurality of rotor traction components arranged to engage the first plurality of stator traction components;
a spherical bearing operationally connecting the stator and the first rotor;
and
a control circuit;
wherein the first plurality of rotor traction components are arranged in a planar or conical relationship and disposed to form a gap between the first plurality of stator traction components and the first plurality of rotor traction components;
wherein the control circuit is configured to activate a plurality of electromagnets to cause the first rotor to pivot about a pivot point defined in the spherical bearing and change the gap such that the first rotor compresses against the stator and the first plurality of stator traction components and the first plurality of rotor traction components translate the compression into tangential thrust and rotation of the first rotor;
and
wherein the first plurality of stator traction components includes a first number of rolling elements.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/052,607Filed 4 Nov 2022 · continuation
Priority: 25 Oct 2017
Published: US 2023/0090752 A123 Mar 2023
Granted: 6 Feb 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H02K 7/003
Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical…:…
H02K 16/02
Machines with more than one rotor or stator: machines with one stator and two or more rotors
H02K 3/24
Windings characterised by the conductor shape, form or construction, e.g. with bar conductors: with channels or ducts for cooling medium between…
H02K 7/08
Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical…:…

Family

Application62/576,981Us provisional application · filed 25 Oct 2017
PCT/IB2018/058339Parent of this continuation · filed 25 Oct 2018
US 2023/0090752 A1Pre-grant publication · published 23 Mar 2023
Application16/753,372Parent of this continuation
US 11,522,425 B2Parent of this continuation
US 2020/0280249 A1Published application
US 11,894,736 B2This patent

From the US filing history. Foreign family members aren’t listed.