Brushless motor/generator
OwnerAnoup Kaulinventor
Life of this patent
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Abstract
A brushless motor is provided, the brushless motor having: a rotor disk including a plurality of permanent magnets attached to the rotor disk around a circumference of the rotor disk; a plurality of C-coils arranged in connected pairs; at least one circuit in electronic communication with one or more of the C-coils; and at least one optical sensor in electronic communication with the one or more circuits, the optical sensor positioned adjacent to the rotor disk at a radius of a plurality of optical slots in the rotor disk; wherein the circuit outputs a voltage to one or more of the plurality of C-coils, and wherein a value of the output voltage from the circuit is based on the optical sensor being in alignment with one of the plurality of optical slots of the rotor disk.
Claims11
A brushless motor comprising:
- a rotor disk including
- a plurality of magnet slots arranged around a perimeter of the rotor disk, the plurality of slots oriented substantially perpendicular to a circumference of the rotor disk and
- a plurality of elongated optical slots arranged circumferentially at a fixed radius around and from a center of the rotor disk, each of the plurality of elongated optical slots having a length corresponding to a width of an angle between consecutive of the plurality of magnet slots;
- a plurality of permanent magnets attached to the rotor disk and positioned within the plurality of magnet slots oriented perpendicular to the circumference of the rotor disk, the permanent magnets oriented such that the poles each of the plurality of magnets are opposite the poles of adjoining permanent magnets;
- one or more pairs of connected C-coils arranged around the rotor disk, each of the pairs of connected C-coils including
- a first coil loop body comprising a coil wound in a clockwise direction and a channel formed in the first coil loop body and a second coil loop body comprising a coil wound in a counterclockwise direction and a channel formed in the second coil loop body, wherein each pair of C-coils is connected with a pair of legs, and
- wherein the C-coils are supported by a housing such that the permanent magnets attached to the rotor disk pass substantially within the coil loop body;
- at least one circuit in electronic communication with the one or more pairs of connected C-coils;
- and
- at least one optical sensor in electronic communication with the one or more circuits, the optical sensor positioned adjacent to the rotor disk at a radius of the plurality of the plurality of optical slots;
- wherein the circuit outputs a voltage to the one or more pairs of connected C-coils, and wherein a value of the output voltage from the circuit is based on the optical sensor being in alignment with one of the plurality of optical slots of the rotor disk.
A brushless motor comprising:
- a rotor disk including a plurality of permanent magnets attached to the rotor disk, the permanent magnets oriented such that a north face and south face of the permanent magnet are perpendicular to an outer edge of the rotor disk, wherein the permanent magnets are substantially uniformly spaced around an edge of the rotor disk and wherein a polarity of adjoining permanent magnets is substantially reversed;
- one or more elongated optical slots arranged circumferentially at a radial distance from a center of the rotor disk, the elongated optical slots having a length corresponding to a width of an angle between consecutive of the plurality of magnets;
- at least one pair of connected C-coils, each C-coil of the pair of connected C-coils having a coil loop body wound in an opposite direction of another of the C-coil of the pair of connected C-coils and a channel formed through a center of the coil loop body for accommodating one of the plurality of permanent magnets and a gap formed along an edge of the C-coils for accommodating the rotor disk, the C-coils connected with a pair of legs;
- at least one circuit in electronic communication with the at least one pair of connected C-coils for controlling a current supplied to the C-coils;
- and
- an optical sensor in electronic communication with the at least one circuit, the optical sensor including a light projecting element and a light detecting element, the optical sensor positioned adjacent the optical slots of the rotor disk.
Dependencies are inferred from the claim text.