Motor with regenerative braking resistor
AssigneeGoodrich Actuation Systems Limited
InventorMaamar Benarous
Life of this patent
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Abstract
There is provided an electric motor comprising a rotor, a stator and a motor controller. The stator comprises a substantially cylindrical body, a plurality of teeth extending from the substantially cylindrical body in a radial direction, one or more first sets of electrical windings that are wound around said teeth and configured to drive the rotor, and one or more second sets of electrical windings electrically separate from the first set of electrical windings. The second set of electrical windings on the stator are electrically connected to the motor controller such that energy produced by the electric motor during a regenerative mode of operation in use is diverted to the second set of electrical windings on the stator for dissipating the energy produced in the regenerative mode.
Claims15
An electric motor comprising a rotor, a stator and a motor controller, the stator comprising:
- a cylindrical body;
- a plurality of teeth extending from the cylindrical body in a radial direction;
- one or more first sets of electrical windings that are wound around said teeth and configured to drive the rotor;
- and
- one or more second sets of electrical windings electrically separate from the first set of electrical windings,
- wherein the second set of electrical windings on the stator are electrically connected to the motor controller such that energy produced by the electric motor during a regenerative mode of operation in use is diverted to the second set of electrical windings on the stator for dissipating the energy produced in the regenerative mode;
- wherein the stator comprises one or more pairs of channels extending in an axial direction through the cylindrical body, and one or more second sets of electrical windings that are wound around each pair of channels and configured to resist motion of the motor during deceleration or under braking thereof.
An electric motor comprising a rotor, a stator and a motor controller, the stator comprising:
- a cylindrical body;
- a plurality of teeth extending from the cylindrical body in a radial direction;
- one or more first sets of electrical windings that are wound around said teeth and configured to drive the rotor;
- and
- one or more second sets of electrical windings electrically separate from the first set of electrical windings,
- wherein the second set of electrical windings on the stator are electrically connected to the motor controller such that energy produced by the electric motor during a regenerative mode of operation in use is diverted to the second set of electrical windings on the stator for dissipating the energy produced in the regenerative mode;
- wherein the stator comprises a slot extending around an outer circumference of the stator, and the one or more second sets of electrical windings are wound around the slot.
A method of constructing an electric motor, comprising:
- providing a stator comprising a cylindrical body and a plurality of teeth extending from the cylindrical body in a radial direction;
- winding one or more first sets of electrical conductors around said teeth, wherein the first set(s) of electrical conductors are configured to drive a rotor of the electric motor;
- winding one or more second sets of electrical conductors on the stator, wherein the second set(s) of electrical conductors are electrically separate from the first set of electrical conductors;
- and
- electrically connecting the second set of electrical conductors on the stator to a motor controller of the electric motor such that energy produced by the electric motor during a regenerative mode of operation in use is diverted to the second set of electrical conductors on the stator for dissipating the energy produced in the regenerative mode;
- wherein the stator comprises one or more pairs of channels extending in an axial direction through the cylindrical body, and the first and second sets of electrical windings are wound around each pair of channels and configured to resist motion of the motor during deceleration or under braking thereof.
A method of constructing an electric motor, comprising:
- providing a stator comprising a cylindrical body and a plurality of teeth extending from the cylindrical body in a radial direction;
- winding one or more first sets of electrical conductors around said teeth, wherein the first set(s) of electrical conductors are configured to drive a rotor of the electric motor;
- winding one or more second sets of electrical conductors on the stator, wherein the second set(s) of electrical conductors are electrically separate from the first set of electrical conductors;
- and
- electrically connecting the second set of electrical conductors on the stator to a motor controller of the electric motor such that energy produced by the electric motor during a regenerative mode of operation in use is diverted to the second set of electrical conductors on the stator for dissipating the energy produced in the regenerative mode;
- wherein the stator comprises a slot extending around an outer circumference of the stator, and the second set of electrical windings are wound around the slot.
Dependencies are inferred from the claim text.