ROTOR ASSEMBLY OF FLAT TYPE OSCILLATION MOTOR

摘要

PURPOSE: A rotor assembly of a flat type oscillation motor is provided to simplify a structure to be assembled, improve efficiency in manufacturing a rotor, enhancing an oscillation performance and making the motor being thinner. CONSTITUTION: A rectifier is formed on a marginal surface adjacent to a rotary central part of a lower surface of an upper substrate(80). The upper substrate(80) is supported by a shaft to be rotated. A pair of coils(90) are arranged on corresponding positions from the rotary central part on an upper surface of the upper substrate(80). A bearing part(110) is inserted into the rotary central part of the upper substrate(80). A weight part(120) is extended between an outer peripheral surface on an upper side of the bearing part(110) and the pair of coils(90) up to an end part of an outer peripheral surface of the upper substrate(80). An eccentric unit(100) is made by integrally forming the bearing part(110) and the weight part(120). The eccentric unit(100) is materialized of metal of high gravity.