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US 11,641,140 B2Granted
Electromechanical battery
AssigneeSpinlectrix Inc.
InventorsJonathan Forrest Garber, Frank Levinson, Andre Adams
Life of this patent
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Abstract
The present invention relates to an electromechanical battery comprising a single pole-pair Halbach array of permanent magnets incorporated into an annular flywheel, which together comprise a rotor assembly, a means for levitating the rotor assembly using a “double-lift” attractive magnetic levitator under active control, and a means for actively stabilizing the spinning rotor assembly by interaction with the fringe fields of the Halbach array.
Claims18
An electromechanical battery comprising:
- a rotor assembly comprising:
- a. a vertical columnar single pole-pair Halbach array of permanent magnets that define a central through-hole, the array having an upper end, a lower and, and essentially planar top and bottom surfaces, wherein the planar top and bottom surfaces are perpendicular to a longitudinal axis of the columnar array, wherein,
- the Halbach array has a substantially uniform unidirectional magnetic field in the central through-hole and nonuniform fringe magnetic fields with radial and vertical components at its top and bottom surfaces;
- b. an annular flywheel coupled to the Halbach array;
- c. a stator disposed within the through-hole of the Halbach array and substantially centered on the longitudinal axis of the array;
- d. windings disposed within the stator;
- and
- e. a coil at the upper end and a coil at the lower end of the Halbach array, wherein the coils interact with the fringe magnetic fields;
- a sensor that detects changes in radial position of the rotor assembly when the rotor assembly is levitated;
- and
- a radial controller in communication with the sensor wherein, upon receiving radial position data from the sensor, the radial controller directs current through the coils to affect the radial position of the rotor assembly.
8 more elements
An electromechanical battery comprising:
- a rotor assembly comprising:
- a. a vertical columnar single pole-pair Halbach array of permanent magnets that define a central through-hole, the array having an upper end, a lower and, and essentially planar top and bottom surfaces, wherein the planar top and bottom surfaces are perpendicular to a longitudinal axis of the columnar array, wherein,
- the Halbach array has a substantially uniform unidirectional magnetic field in the central through-hole and nonuniform fringe magnetic fields with radial and vertical components at its top and bottom surfaces;
- b. an annular flywheel coupled to the Halbach array;
- c. a stator disposed within the through-hole of the Halbach array and substantially centered on the longitudinal axis of the array;
- and
- d. windings disposed within the stator;
- at least two assemblies of permanent magnets, each assembly comprising one or more magnets, each assembly being fixedly coupled to a framework that surrounds the rotor assembly, the one or more magnets of each assembly being disposed to exert levitating force on the rotor assembly via levitation magnetic fields;
- each assembly of magnets extending in a plane that is orthogonal to the longitudinal axis of the rotor assembly;
- and
- one assembly of magnets being disposed above the center of gravity of the rotor assembly and the other assembly of magnets being disposed below the center of gravity of the rotor assembly, wherein:
- the assemblies of permanent magnets generate sufficient magnetic force to levitate the rotor assembly while, in addition, passively affecting the centration of the rotor assembly.
9 more elements
An electromechanical battery comprising:
- a rotor assembly comprising:
- a. a vertical columnar single pole-pair Halbach array of permanent magnets that define a central through-hole, the array having an upper end, a lower and, and essentially planar top and bottom surfaces, wherein the planar top and bottom surfaces are perpendicular to a longitudinal axis of the columnar array, wherein,
- the Halbach array has a substantially uniform unidirectional magnetic field in the central through-hole and nonuniform fringe magnetic fields with radial and vertical components at its top and bottom surfaces;
- b. an annular flywheel coupled to the Halbach array;
- c. a stator disposed within the through-hole of the Halbach array and substantially centered on the longitudinal axis of the array;
- d. windings disposed within the stator;
- and
- the electromagnetic battery further comprising first and second attractive levitator magnet assemblies, wherein one of the attractive levitator magnet assemblies is disposed above the center of gravity of the rotor assembly and the other attractive levitator magnet assembly is disposed below the center of gravity of the rotor assembly.
5 more elements
Dependencies are inferred from the claim text.