ANNULAR COMMUTATOR SEGMENT STRUCTURE FOR SWITCHING COIL CURRENT DIRECTION OF TWO COIL SYSTEM ROTOR IN MICRO FLAT VIBRATION MOTOR INDIVIDUALLY AND MICRO FLAT VIBRATION MOTOR USING THE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To solve the structural problem of a micro flat vibration motor that the action of a brush and commutator segments must be rechecked in order to optimize the performance because the action of the commutator segments itself in a DC permanent magnet motor, or a micro flat vibration motor is to switch the current direction of an electric drive coil carried on the rotor of the motor at an appropriate position, where the rotor can be rotated through positional relation between the rotor coil of the motor and the stator field magnet to generate a constant magnetic attracting or repelling force.;SOLUTION: In the rotor of a micro flat vibration motor having two coils, current of two coils is switched individually. Current of each coil can be controlled precisely through the novel commutator segment structure of the coil.;COPYRIGHT: (C)2002,JPO