Double stator switched reluctance rotating machine

Patent metadata

Field	Value
Publication number	US-9692267-B2
Application number	US-201514743843-A
Country	US
Kind code	B2
Filing date	Jun 18, 2015
Priority date	Dec 28, 2012
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A double stator switched reluctance rotating machine includes an annular rotor, an outer stator that is disposed outside the rotor, and an inner stator that is disposed inside the rotor; and employs a structure in which the rotor is provided with a bolt fastening hole passing through the rotor in an axial direction and the bolt fastening hole is provided at a position depending on magnetic characteristics of the outer and inner stators.

First claim

What is claimed is:

1. A double stator switched reluctance rotating machine comprising:
an annular rotor;
an outer stator that is disposed outside the rotor; and
an inner stator that is disposed inside the rotor,
wherein the rotor is provided with a bolt fastening hole that passes through the rotor in an axial direction, and
wherein the bolt fastening hole is provided at a position depending on magnetic characteristics of the outer and inner stators,
wherein the rotor includes:
(i) an annular yoke portion,
(ii) a first salient pole that protrudes outward from the yoke portion, and
(iii) a second salient pole that protrudes inward from the yoke portion and has the same phase as the first salient pole, and

wherein the bolt fastening hole is provided at the yoke portion.

2. The double stator switched reluctance rotating machine according to claim 1 ,
wherein the bolt fastening hole is provided in a region that connects the first salient pole with the second salient pole in a radial direction.

3. The double stator switched reluctance rotating machine according to claim 1 ,
wherein the bolt fastening hole is provided on a center line that connects a center of the first salient pole with a center of the second salient pole in the radial direction.

4. The double stator switched reluctance rotating machine according to claim 2 ,
wherein the bolt fastening hole is provided on a center line that connects a center of the first salient pole with a center of the second salient pole in the radial direction.

5. The double stator switched reluctance rotating machine according to claim 1 ,
wherein a magnetomotive force of the inner stator is set to be smaller than a magnetomotive force of the outer stator, and
the bolt fastening hole is provided close to the inner stator.

6. The double stator switched reluctance rotating machine according to claim 2 ,
wherein a magnetomotive force of the inner stator is set to be smaller than a magnetomotive force of the outer stator, and
the bolt fastening hole is provided close to the inner stator.

7. The double stator switched reluctance rotating machine according to claim 3 ,
wherein a magnetomotive force of the inner stator is set to be smaller than a magnetomotive force of the outer stator, and
the bolt fastening hole is provided close to the inner stator.

8. The double stator switched reluctance rotating machine according to claim 4 ,
wherein a magnetomotive force of the inner stator is set to be smaller than a magnetomotive force of the outer stator, and
the bolt fastening hole is provided close to the inner stator.

9. The double stator switched reluctance rotating machine according to claim 5 ,
wherein the bolt fastening hole is formed at a position depending on a ratio of the magnetomotive force of the outer stator to the magnetomotive force of the inner stator in the radial direction.

10. The double stator switched reluctance rotating machine according to claim 6 ,
wherein the bolt fastening hole is formed at a position depending on a ratio of the magnetomotive force of the outer stator to the magnetomotive force of the inner stator in the radial direction.

11. The double stator switched reluctance rotating machine according to claim 7 ,
wherein the bolt fastening hole is formed at a position depending on a ratio of the magnetomotive force of the outer stator to the magnetomotive force of the inner stator in the radial direction.

12. The double stator switched reluctance rotating machine according to claim 8 ,
wherein the bolt fastening hole is formed at a position depending on a ratio of the magnetomotive force of the outer stator to the magnetomotive force of the inner stator in the radial direction.

13. The double stator switched reluctance rotating machine according to claim 3 ,
wherein a plurality of the bolt fastening holes are provided on the center line.

14. The double stator switched reluctance rotating machine according to claim 4 ,
wherein a plurality of the bolt fastening holes are provided on the center line.

15. The double stator switched reluctance rotating machine according to claim 1 ,
wherein the rotor is formed by a combination of a plurality of core pieces in a circumferential direction.

16. The double stator switched reluctance rotating machine according to claim 15 ,
wherein the rotor includes core pressing members that are provided on at least one of the outside and inside thereof in the radial direction and press joints at which the plurality of core pieces are combined with each other.

17. The double stator switched reluctance rotating machine according to claim 1 ,
wherein the bolt fastening hole has a shape depending on the magnetic characteristics of outer and inner stators.

18. The double stator switched reluctance rotating machine according to claim 1 ,
wherein a width of the second salient pole is smaller than a width of the first salient pole.

19. The double stator switched reluctance rotating machine according to claim 1 , further comprising a plurality of first salient poles that protrude outward from the yoke portion, each first salient pole spaced apart from each other at an interval of 45°.

Assignees

• Ihi Corp

Inventors

• Tojima Narifumi
• Jikumaru Takehiro
• Handa Norihisa
• ISHIMOTO Koshi
• Kuwata Gen
• Ohashi Satoru
• Hirao Toshiyuki

Classifications

• H02K16/04 Primary

  Machines with one rotor and two stators · CPC title

• H02K1/246

  Variable reluctance rotors · CPC title

• H02K19/103

  Motors having windings on the stator and a variable reluctance soft-iron rotor without windings · CPC title

• H02K1/28 Primary

  Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures · CPC title