Vibration generator

Abstract

This invention provides a vibration generator with improved durability by maintaining the temperature of the magnetic path forming member and drive coil at the lowest possible temperature using a simple control configuration. [Solution] In a static magnetic field generated by an excitation coil (magnetic path forming member), a drive coil whose direction of movement is restricted is moved back and forth by an electromagnetic force generated by a vibration control unit (excitation control unit). The cooling control unit (first rotation speed setting unit) sets the rotation speed of the cooling blower (blower) according to which temperature range the temperature of the excitation coil measured by a temperature sensor (temperature measuring unit) belongs to. The cooling control unit (second rotation speed setting unit) also sets the rotation speed of the cooling blower according to which temperature range the temperature of the drive coil measured by a temperature sensor belongs to. The cooling control unit then rotates the cooling blower at the higher of the rotation speeds of the cooling blower set according to the temperatures of the excitation coil and the drive coil.

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