ELECTRIC DEVICES
First Claim
Patent Images
1. An electric device comprising:
- an axle;
a first stator assembly having a first pole and a first coil around the first pole;
a second stator assembly having a second pole and a second coil around the second pole; and
a rotor assembly having a housing and a plurality of permanent magnets coupled to the housing, wherein the first and second stator assemblies are located within the rotor assembly and are spaced apart from each other along a length of the axle.
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Abstract
Generally described, the present disclosure is directed to examples of electric devices that include first and second stator assemblies located within a rotor assembly. The configuration of the electric device, including the configuration of the first and second stator assemblies, results in the electric device generating a stronger magnetic field and therefore outputting a higher torque when current is provided to the second stator assembly and generating a weaker magnetic field and therefore outputting a higher rotational speed when current is provided to the first stator assembly.
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Citations
25 Claims
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1. An electric device comprising:
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an axle; a first stator assembly having a first pole and a first coil around the first pole; a second stator assembly having a second pole and a second coil around the second pole; and a rotor assembly having a housing and a plurality of permanent magnets coupled to the housing, wherein the first and second stator assemblies are located within the rotor assembly and are spaced apart from each other along a length of the axle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electrically powered vehicle comprising:
an electric device that includes a rotor assembly, an axle, and first and second stator assemblies, the rotor assembly having a housing and a plurality of permanent magnets on the housing, each of the first and second stator assemblies having a pole and a coil wrapped around the pole, wherein the first and second stator assemblies are positioned within the rotor assembly and spaced apart from each other along a length of the axle. - View Dependent Claims (11, 12, 13, 14)
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15. A system comprising:
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an electric device that includes a rotor assembly, an axle, and first and second stator assemblies, the rotor assembly having a housing and a plurality of permanent magnets on the housing, each of the first and second stator assemblies having a pole and a coil wrapped around the pole, wherein the first and second stator assemblies are positioned within the rotor assembly at a spaced apart distance from each other along a length of the axle; a power source; and a controller coupled to the power source and the electric device, the controller configured to selectively electrically couple the power source to a respective one of the first and second stator assemblies. - View Dependent Claims (16, 17, 18, 19)
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20. A system comprising:
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an electric device that includes a rotor assembly, an axle, and first and second stator assemblies, the rotor assembly having a housing and a plurality of permanent magnets on the housing, each of the first and second stator assemblies having a pole and a coil around the pole, wherein the first and second stator assemblies are positioned within the rotor assembly at a spaced apart distance from each other along a length of the axle; a power source; a controller, the controller configured to generate control signals; and a switch coupled to the controller, the power source and the electric device, the switch configured to selectively couple the power source to a respective one of the first and second stator assemblies in response to receiving a control signal from the controller. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification