Patent classifications
H02K37/04
Low-noise, high rotor pole switched reluctance motor
The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles R.sub.n and number of stator poles S.sub.n utilizing a numerical relationship defined by a mathematical formula, R.sub.n=2S.sub.nF.sub.p, when S.sub.n=mF.sub.p, wherein F.sub.p is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
Selector dial for a vehicle that incorporates electric motor for defining reconfigurable magnetic detents
A selector for a vehicle includes a stepper motor. A manually operable rotating portion is in communication with the stepper motor. A display screen is positioned proximate the rotating portion. A position sensor is in communication with the stepper motor and the manually operable rotating portion. The rotating portion is coupled to the stepper motor at a drive shaft of the stepper motor. Manual operation of the rotating portion also rotates the drive shaft. The stepper motor applies a haptic component to the manual operation of the rotating portion.
SELECTOR DIAL FOR A VEHICLE THAT INCORPORATES ELECTRIC MOTOR FOR DEFINING RECONFIGURABLE MAGNETIC DETENTS
A selector for a vehicle includes a stepper motor. A manually operable rotating portion is in communication with the stepper motor. A display screen is positioned proximate the rotating portion. A position sensor is in communication with the stepper motor and the manually operable rotating portion. The rotating portion is coupled to the stepper motor at a drive shaft of the stepper motor. Manual operation of the rotating portion also rotates the drive shaft. The stepper motor applies a haptic component to the manual operation of the rotating portion.
LOW-NOISE, HIGH ROTOR POLE SWITCHED RELUCTANCE MOTOR
The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles R.sub.n and number of stator poles S.sub.n utilizing a numerical relationship defined by a mathematical formula, R.sub.n=2S.sub.nF.sub.p, when S.sub.n=mF.sub.p, wherein F.sub.p is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
LOW-NOISE, HIGH ROTOR POLE SWITCHED RELUCTANCE MOTOR
The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles R.sub.n and number of stator poles S.sub.n utilizing a numerical relationship defined by a mathematical formula, R.sub.n=2S.sub.nF.sub.p, when S.sub.n=mF.sub.p, wherein F.sub.p is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
ACOUSTIC NOISE MITIGATION SYSTEM FOR AN ELECTRIC MACHINE
An acoustic noise mitigation system for an electric machine includes one or more suspension members. The suspension members may include arcuate members that are positioned between a machine housing and a stator. During operation of the electric machine, the electromagnetic force frequency that is generated by the stator relative to a rotating rotor is able to be absorbed by the suspension members. As a result, acoustic noise generated by the electric machine is reduced.
ACOUSTIC NOISE MITIGATION SYSTEM FOR AN ELECTRIC MACHINE
An acoustic noise mitigation system for an electric machine includes one or more suspension members. The suspension members may include arcuate members that are positioned between a machine housing and a stator. During operation of the electric machine, the electromagnetic force frequency that is generated by the stator relative to a rotating rotor is able to be absorbed by the suspension members. As a result, acoustic noise generated by the electric machine is reduced.
ELECTRIC MACHINE ASSEMBLY WITH REDUCED ROTOR POST LEAKAGE
An electric machine assembly includes a rotor formed from one or more magnetically conductive sheets having elongated magnetic flux barriers separated from each other in radial directions that radially extend away from an axis of rotation of the rotor. The magnetic flux barriers are separated from each other by magnetic flux carrier portions of the one or more magnetically conductive sheets. The assembly also includes a non-magnetic post coupled with the magnetic flux carrier portions of the one or more magnetically conductive sheets on opposite sides of at least one of the magnetic flux barriers. The non-magnetic post is elongated in the radial directions from a first magnetic flux carrier portion to a second magnetic flux carrier portion of the magnetic flux carrier portions on the opposite sides of the at least one magnetic flux barrier.
COIL DEVICE, AND MOTOR-DRIVEN VALVE AND SOLENOID VALVE INCLUDING SUCH A COIL DEVICE [As Amended]
Provided are a coil device that considerably reduces the man-hours and the cost for manufacturing, and a motor-driven valve and a solenoid valve including such a coil device. The terminal end of the magnet wire is fixed to a conducting terminal by swaging and/or fusing at a distal-end binding part for binding the terminal end of the magnet wire.
ELECTRIC MOTOR
An electric motor is presented. The electric motor includes a rotor and a stator. A gap is provided between the rotor and the stator. A plurality of magnetic rollable elements are located in the gap.