IP Library › Granted Patent US 10,697,376
Granted Patent B2
US 10,697,376 · App. 15/682,540 · Granted Jun 30, 2020

Induction switched reluctance motor

Inventor: Mohammadali Abbasian (Isfahan, IR)
F02C9/24F23N5/003H02K19/103H02K19/12H02K29/03
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,697,376
App. No.
15/682,540
Granted
Jun 30, 2020
Kind
B2
Abstract

A switched reluctance motor is disclosed. The switched reluctance motor includes a rotor, a stator, an air gap between the stator and the rotor, and a plurality of conductive elements. The plurality of conductive elements are disposed on the rotor.

Claims (47)

1. A switched reluctance motor, comprising:

a stator;

a rotor configured to rotate with respect to the stator, the rotor comprising a first back iron and a plurality of rotor poles;

an air gap between the stator and the rotor; and

a first plurality of conductive elements, the first plurality of conductive elements disposed on the rotor; wherein:

the stator comprises a second plurality of conductive elements, a second back iron, and a plurality of stator poles,

the second plurality of conductive elements associated with a plurality of separately excitable phases, and

each phase of the plurality of separately excitable phases configured to be excited by energizing a subset of the second plurality of conductive elements using pulses of direct current.

2. The motor of claim 1 , wherein the rotor is non-segmental.

3. The motor of claim 1 , wherein the rotor is located in a position, the position being interior of the stator.

4. The motor of claim 1 , wherein the rotor is located in a position, the position being exterior of the stator.

5. The motor of claim 1 , wherein

the rotor includes a first material,

the first material includes a ferromagnetic material,

the stator includes a second material, and

the second material includes a ferromagnetic material.

6. The motor of claim 1 , wherein the first plurality of conductive elements includes a plurality of concentric wound windings.

7. The motor of claim 1 , wherein the first plurality of conductive elements includes a plurality of solid conductive elements.

8. The motor of claim 1 , wherein the first plurality of conductive elements are short-circuited.

9. The motor of claim 1 , wherein:

each element of the first plurality of conductive elements is disposed between a first adjacent poles pair of the plurality of rotor poles, and

each element of the second plurality of conductive elements is disposed between a second adjacent poles pair of the plurality of stator poles.

10. The motor of claim 1 , wherein the second plurality of conductive elements include a plurality of concentric wound windings.

11. The motor of claim 1 , wherein the second plurality of conductive elements include a plurality of solid conductive elements.

12. The motor of claim 1 , wherein:

each conductive element of the first plurality of conductive elements and

each conductive element of the second plurality of conductive elements includes a full-pitch winding.

13. The motor of claim 1 , wherein:

each conductive element of the first plurality of conductive elements includes a short-pitch winding,

the short-pitch winding includes a single tooth winding, and

the conductive element of the second plurality of conductive elements includes a full-pitch winding.

14. The motor of claim 1 , wherein:

each conductive element of the first plurality of conductive elements includes a short-pitch winding,

the plurality of stator poles comprise a plurality of adjacent poles pairs, each of the plurality of adjacent poles pairs comprising a first stator pole and a second stator pole, a width of the first stator pole being at least twice as large as a width of the second stator pole,

each conductive element of the second plurality of conductive elements comprises a short-pitch winding wound around the first stator pole, and

the short-pitch winding includes a single tooth winding.

15. The motor of claim 1 , wherein:

the plurality of rotor poles are connected to the first back iron, and

the plurality of stator poles are connected to the second back iron.

16. The motor of claim 1 , wherein a number of the plurality of stator poles is equal to or smaller than 18.

17. The motor of claim 1 , wherein:

each phase of the plurality of separately excitable phases is associated with one respective stator pole of the plurality of stator poles and a short flux path, and

the short flux path excludes the first back iron.

18. The motor of claim 1 , wherein the short flux path comprises:

a stator pole among the plurality of stator poles,

a portion of a rotor pole among the plurality of rotor poles, the rotor pole being adjacent to the stator pole, and

a portion of the air gap, the portion of the air gap being located between the stator pole and the portion of the rotor pole.

Continuity (2)
Provisional Application 62377756 · Aug 22, 2016
Related Publication 20170370296A1 · Dec 28, 2017