VIBRATION GENERATOR AND ELECTRONIC DEVICE HAVING THE SAME

• Main Authors: Ikehara, Masayuki, Yano, Yushi, Kataoka, Hideyuki
• Format: Patent
• Language: English; French; German
• Published: 01.03.2017
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; GENERATION; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; PERFORMING OPERATIONS; TRANSPORTING

The invention provides a vibration generator with enhanced magnetic attraction force of a coil applied to a plunger. A vibration generator S includes a coil 100, a plunger 200, and a frame 300. The plunger 200 includes a first shaft 210 movably received in the coil 100. The first shaft 210 is at least partly made of a magnetic material so as to be magnetically attractable to the coil 100 and thereby movable in the Y-direction. The plunger 200 further includes a second shaft 220 extending in a X-X' direction, being disposed on a Y'-direction side relative the coil 100 with a gap therebetween, and being at least partly made of a magnetic material to be magnetically attractable to the coil 100 and thereby movable in the Y-direction. The frame 300 is fixed to the first shaft 210 at a position on the Y-direction side relative to the coil 100, fixed to the second shaft 220 at a position on the Y'-direction side relative to the coil 100, and elastically deformable at least partly as a result of movement of the first shaft 210 and the second shaft 220.