Sealed switched reluctance motor

US10348172B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10348172-B2
Application numberUS-201414540055-A
CountryUS
Kind codeB2
Filing dateNov 13, 2014
Priority dateNov 13, 2013
Publication dateJul 9, 2019
Grant dateJul 9, 2019

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  1. Title

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  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A motor including a sealed rotor with at least one salient rotor pole and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole.

First claim

Opening claim text (preview).

What is claimed is: 1. A motor comprising: a sealed rotor with at least one salient rotor pole; and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one rotor pole with axial flux at each interface between the at least one salient stator pole and the at least one salient rotor pole. 2. The motor of claim 1 , wherein the at least one salient rotor pole is sealed from the at least one salient stator pole. 3. The motor of claim 1 , wherein the at least one salient stator pole has axially displaced poles. 4. The motor of claim 1 , wherein each salient rotor pole comprises a set of sub-poles offset by an electrical angle. 5. The motor of claim 1 , wherein the sealed rotor comprises a non-magnetic core and the at least one salient rotor pole is ferromagnetic. 6. The motor of claim 1 , wherein the at least one salient rotor pole is mounted on a ferromagnetic backing. 7. The motor of claim 6 , wherein the ferromagnetic backing comprises members extending radially toward the at least one salient stator pole to effect the axial flux flow circuit. 8. The motor of claim 1 , wherein the at least one salient stator pole is configured as a slot through which the at least one salient rotor pole passes to effect the axial flux flow circuit. 9. The motor of claim 1 , wherein the at least one salient rotor pole and at least one salient stator pole are configured with facing end members to effect the axial flux flow circuit. 10. A switched reluctance motor comprising: a sealed rotor with at least one salient rotor pole; and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole; wherein each salient rotor pole comprises a corresponding set of axially displaced sub-poles disposed so that each axial flux circuit through each salient rotor pole is common to each axially displaced sub-pole of the corresponding set of axially displaced sub-poles of the salient rotor pole. 11. A switched reluctance motor comprising: a sealed rotor with at least one salient rotor pole; a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole; and a sealed partition connected to the stator so as to seal the at least one salient rotor pole from the stator; wherein each salient rotor pole comprises a corresponding set of axially displaced sub-poles disposed so that each axial flux circuit through each salient rotor pole is common to each axially displaced sub-pole of the corresponding set of axially displaced sub-poles of the salient rotor pole. 12. The motor of claim 11 , wherein the sealed partition seals the at least one salient rotor pole from the at least one salient stator pole. 13. The motor of claim 11 , wherein the at least one salient stator pole has axially displaced poles. 14. The motor of claim 11 , wherein each salient rotor pole comprises a set of sub-poles offset by an electrical angle. 15. The motor of claim 11 , wherein the sealed rotor comprises a non-magnetic core and the at least one salient rotor pole is ferromagnetic. 16. The motor of claim 11 , wherein the at least one salient rotor pole is mounted on a ferromagnetic backing. 17. The motor of claim 16 , wherein the ferromagnetic backing comprises members extending radially toward the at least one salient stator pole to effect the axial flux flow circuit. 18. The motor of claim 11 , wherein the at least one salient stator pole is configured as a slot through which the at least one salient rotor pole passes to effect the axial flux flow circuit. 19. The motor of claim 11 , wherein the at least one salient rotor pole and at least one salient stator pole are configured with facing end members to effect the axial flux flow circuit.

Assignees

Inventors

Classifications

  • H02K19/103Primary

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

  • H02K1/246Primary

    Variable reluctance rotors · CPC title

  • for auxiliary purposes, e.g. damping or commutating · CPC title

  • H02K19/02Primary

    Synchronous motors · CPC title

  • Doubly fed machines receiving two supplies both on the stator only wherein the power supply is fed to different sets of stator windings or to rotor and stator windings · CPC title

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Frequently asked questions

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What does patent US10348172B2 cover?
A motor including a sealed rotor with at least one salient rotor pole and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole.
Who is the assignee on this patent?
Brooks Automation Inc
What technology area does this patent fall under?
Primary CPC classification H02K19/103. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jul 09 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).