VIBRATION GENERATOR AND ELECTRONIC APPARATUS

A vibration generator (40) operated by the rotation of a rotor having an unbalancer, comprising a bottom plate (47) being fixed with a planar coil (120), a fixed shaft (91) provided vertically to the bottom plate, a magnet (85) being fixed to the fixed shaft through a rotatable bearing and being dis...

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Main Authors SUZUKI MASAHIRO, YAMASUE TOSHINORI, KAYAMA SHUN, KITAMURA HIROKAZU, SHIMIZU YUKIKO, AZUMA HIROSHI
Format Patent
LanguageEnglish
Published 17.02.2006
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
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
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PERFORMING OPERATIONS
PHYSICS
SOUND-PRODUCING DEVICES
TRANSPORTING
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Summary:A vibration generator (40) operated by the rotation of a rotor having an unbalancer, comprising a bottom plate (47) being fixed with a planar coil (120), a fixed shaft (91) provided vertically to the bottom plate, a magnet (85) being fixed to the fixed shaft through a rotatable bearing and being disposed oppositely to the surface of the planar coil through a slight gap, and a weight (87) being fixed to the magnet. A vibration is generated by supplying a current to a coil provided in the planar coil thereby rotating the magnet and the weight, wherein the bottom plate (47) is composed of a nonmagnetic body and a magnetic thin plate (48) is fixed on the side opposite to the magnet (85) across the bottom plate (47).
Bibliography:Application Number: KR20057001497