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US 11,444,521 B2Granted
Sealed switched reluctance motor
AssigneeBrooks Automation US, LLC
InventorsJairo T. Moura, Jayaraman Krishnasamy
Life of this patent
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Abstract
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.
Claims32
A motor comprising:
- a rotor configured as a switched reluctance rotor, and having two sets of rotor poles offset by an electrical angle, configured for at least three phase excitation so that the motor is operative with but two sets of rotor poles;
- and
- a stator configured as a brushless stator separated from the rotor by a sealed partition;
- wherein the switched reluctance rotor and the stator are configured so that the motor is operative with the but two sets of rotor poles and but two sets of independently energized windings each of which forms a flux path with each rotor pole of the but two sets of rotor poles.
1 more element
A motor comprising:
- a switched reluctance rotor comprising a plurality of rotor poles;
- and
- a stator comprising a plurality of independent stator modules arranged around the rotor, the stator modules comprising salient stator poles constructed as separate segments and arranged so that the salient stator poles are sealed from the switched reluctance rotor.
A motor comprising:
- a switched reluctance rotor comprising a plurality of salient poles;
- and
- a configurable stator sealed from the switched reluctance rotor and comprising at least one interchangeable stator module comprising a stator pole and an excitation coil installed together as a unit,
- wherein the stator configuration, sealed from the switched reluctance rotor, is selectable from more than one stator configuration, each of the more than one stator configuration being effected by selection of a number of stator modules installed on the stator so that different selected stator configurations have a different number of selected stator modules for a common switched reluctance rotor.
1 more element
A motor comprising:
- a switched reluctance rotor comprising a plurality of salient poles;
- and
- a stator sealed from the switched reluctance rotor and comprising a selectable number of interchangeable stator modules, sealed from the switched reluctance rotor, so as to change a configuration of the motor depending on a number stator modules selected, each of the stator modules defining an individual stator pole.
Dependencies are inferred from the claim text.