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Piezoelectric Vibration Components

A piezoelectric vibration and piezoelectric element technology, which is applied to electrical components, piezoelectric devices/electrostrictive devices, generators/motors, etc., and can solve the problems of reduced vibration force, expansion or shrinkage deformation rate of piezoelectric elements.

Inactive Publication Date: 2017-04-12
MPLUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, since the ultrasonic linear motor of Patent Document 1 covers the remaining part except a part of the piezoelectric element that generates vibration force by translational motion, the expansion or contraction deformation rate has to be significantly reduced.
[0010] That is, the protective material of the prior art acts instead as the main cause of reducing the vibration force of the piezoelectric element. Therefore, it is necessary to study other methods of protecting the piezoelectric element from external factors.

Method used

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  • Piezoelectric Vibration Components
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  • Piezoelectric Vibration Components

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Embodiment Construction

[0037] The purpose, specific advantages, and new features of the present invention will be made clearer by the following detailed description and preferred embodiments related to the accompanying drawings. In this specification, it must be noted that when reference numerals are given to constituent elements in each drawing, as long as they are the same constituent elements, even if they are shown in different drawings, the same numerals are attached as much as possible. In addition, terms such as "one side", "other side", "first", and "second" are used to distinguish one constituent element from other constituent elements, and the constituent elements are not limited by the terms. Hereinafter, when describing the present invention, detailed descriptions of well-known technologies that may obscure the gist of the present invention will be omitted.

[0038] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

[003...

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Abstract

The present invention relates to piezoelectric vibration components. The present invention includes: a piezoelectric element that repeatedly undergoes expansion and contraction deformation by application of an external power source to generate vibration force; an upper case whose lower surface is open to form an inner space; a lower case that is connected with the upper The lower face of the case is combined to cover the lower face of the upper case; and the vibrating plate, which is positioned on the lower case at a predetermined interval, is used to mount the piezoelectric element. In particular, the present invention is characterized in that the lateral length of the inner side of the upper case is formed larger than the lateral length of the vibration plate, and the inner surface of the upper case is arranged so as not to contact the edge of the vibration plate.

Description

Technical field [0001] The present invention relates to piezoelectric vibration components. Background technique [0002] Generally, in portable electronic devices such as mobile phones, e-book terminals, game consoles, and PMPs, the vibration function is flexibly used for various purposes. [0003] In particular, such a vibration generating device for the purpose of generating vibration is mainly mounted on a portable electronic device and used as an alarm function of a silent information reception signal. [0004] The current actual situation is that with the multi-functionalization of such portable electronic devices, not only the miniaturization of the vibration generating device, but also the integration of the vibration generating device and the high-functionality of various types are required. [0005] In addition, recently, according to the user's desire to use the portable electronic device easily, a touch device that touches the portable electronic device for input is usuall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H9/02
CPCH02N2/002H02N2/0055H02N2/043G06F3/016H10N30/88H10N30/20
Inventor 朴镜洙孙延昊郑昇贤崔准
Owner MPLUS