Vibration generating device

A technology of vibration generation and vibrating parts, applied in electromechanical devices, fluids using vibration, electrical components, etc., can solve problems such as reducing the overall structural limit, reducing the size of the vibrating body, and reducing the size of the spring
CN102233320AInactive Publication Date: 2011-11-09ALPS ALPINE CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ALPS ALPINE CO LTD
Publication Date
2011-11-09
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a vibration generating device of which the entire configuration may have a small size in a thickness direction, which can obtain a large vibration, and which can give vibrations with a plurality of large frequencies. The vibration generating device includes a coil (5) wound around an outer peripheral surface of a core (4), a vibrator (3) vibrating due to a magnetic field generated by the coil (5), a magnetic field forming unit having a pair of magnets (7) oppositely disposed at both surfaces of the vibrator (3) so that the same polarities face each other or one magnet (7) disposed at one side surface of the vibrator (3), and an elastic support member (8) for supporting the vibrator (3) so that the vibrator (3) is capable of freely vibrating, wherein a vibrating direction of the vibrator (3) is set to be parallel to a fixed surface of the device, by means of a magnetic flux generated by the magnetic field forming unit (6).
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Description

technical field

[0001] The present invention relates to a vibration generating device, in particular to a vibration generating device suitable for being mounted on a portable device. Background technique

[0002] Generally, a vibration generating device is built into portable devices such as mobile phones and controllers of game machines in order to obtain various usability.

[0003] In such a portable device, the overall housing tends to be thinner, and the demand for thinner built-in components is also increasing.

[0004] For the vibration generating device, it is also required to reduce the thickness. However, for the structure that sets the vibration direction along the thickness direction, if the thickness is reduced, the vibration space inside the frame will also become smaller, so there is a problem that it cannot be set larger. Vibration problem.

[0005] Therefore, it has been proposed to set the vibration direction not in the thickness direction of the housing b...

Claims

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