Reluctance motor and flux barrier structure thereof

Patent metadata

Field	Value
Publication number	US-10135306-B2
Application number	US-201615210100-A
Country	US
Kind code	B2
Filing date	Jul 14, 2016
Priority date	Jul 14, 2016
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

A reluctance motor and a flux barrier structure thereof are provided. The flux barrier structure is disposed in a rotor, and the flux barrier structure has at least one flux barrier space and a plurality of support bars. The flux barrier space is formed by at least one surrounding wall of the rotor. The support bars are intersected with each other in the flux barrier space, and the support bars are extended from one side of the enclosure wall to the opposite side thereof.

First claim

What is claimed is:

1. A flux barrier structure, disposed in a rotor, and comprising:
at least one flux barrier space defined by at least one flux barrier surrounding wall; and
a plurality of supporting bars intersected with each other within the flux barrier space, and extended from one side of the flux barrier surrounding wall to an opposite side of the flux barrier surrounding wall.

2. The flux barrier structure according to claim 1 , wherein the flux barrier space axially passes through the rotor from a top surface of the rotor to a bottom surface thereof.

3. The flux barrier structure according to claim 1 , wherein the supporting bars are arranged to be a meshy construction or a honeycomb construction.

4. The flux barrier structure according to claim 1 , wherein each of the supporting bars has a plurality of extensions, and the extensions are extended in an identical direction or in different directions.

5. The flux barrier structure according to claim 1 , wherein a cross-sectional width of each of the supporting bars is ranged from 1 mm to 2 mm.

6. The flux barrier structure according to claim 1 , wherein a spacing distance between each two of the supporting bars adjacent to each other is ranged from 1 mm to 1.5 mm.

7. The flux barrier structure according to claim 1 , wherein the flux barrier structure comprises a plurality of the flux barrier spaces which are equidistantly disposed and spaced from each other within the rotor.

8. A reluctance motor, comprising:
a stator;
a rotor rotated with respect to the stator; and
a flux barrier structure disposed in the rotor, and comprising:
at least one flux barrier space defined by at least one flux barrier surrounding wall; and
a plurality of supporting bars intersected with each other within the flux barrier space, and extended from a side of the flux barrier surrounding wall to an opposite side of the flux barrier surrounding wall.

9. The reluctance motor according to claim 8 , wherein the reluctance motor further comprises a winding layer disposed on an outer peripheral surface, wherein the winding layer includes a plurality of through holes and a plurality of conductor strips inserted in the through holes respectively.

10. The reluctance motor according to claim 9 , wherein the reluctance motor further comprises an annular stepped groove formed on an end surface of the surrounding layer, and the annular stepped groove is communicated with the through holes.

Assignees

• Univ Nat Cheng Kung

Inventors

• Tsai Mi-Ching
• Huang Po-Wei

Classifications

• H02K1/06 Primary

  characterised by the shape, form or construction · CPC title

• H02K19/02

  Synchronous motors · CPC title

• H02K1/246 Primary

  Variable reluctance rotors · CPC title