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AssigneeNEC Tokin Corporation
InventorsMakoto Teshima, Koji Uchida, Yutaka Suzuki, Toru Kumagai
Estimating the term…
In a vibration actuator using a magnetic circuit device (14), a supporting arrangement (23) elastically supports the magnetic circuit device. A coil (17) is inserted into a magnetic gap (15) of the magnetic circuit device and is supported by a vibration plate (19). The vibration actuator has a first operation mode in which the magnetic circuit device mainly vibrates to transmit vibration through the vibration plate to the outside, a second vibration mode in which the coil mainly vibrates to produce a buzzer sound through the vibration plate, and a third vibration mode in which the magnetic circuit device and the coil mainly vibrate to produce a sound corresponding to a speech through the vibration plate.
A vibration actuator comprising a magnetic circuit device having a magnetic gap, a supporting device for elastically supporting said magnetic circuit device, a coil inserted into said magnetic gap, and a vibration plate supporting said coil, said actuator having a first vibration mode in which said magnetic circuit device mainly vibrates to transmit vibration through said vibration plate to the outside, a second vibration mode in which said coil mainly vibrates to produce a buzzer sound through said vibration plate, and a third vibration mode in which said magnetic circuit device and said coil mainly vibrate to produce a sound corresponding to a speech through said vibration plate.
Dependencies are inferred from the claim text.