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Piezoelectric vibration device

A piezoelectric vibration and vibrating plate technology, applied in generators/motors, fluids using vibration, circuits, etc., can solve the problems of short battery life, high power consumption, slow response speed, etc.

Inactive Publication Date: 2014-09-17
HOKURIKU ELECTRIC INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electromagnetic oscillator is constituted by coupling the eccentric weight to the shaft of the electromagnetic motor. When a call is made, the eccentric weight installed on the shaft of the electromagnetic motor rotates to generate vibration, which vibrates the body of the device to notify the user. However, there is a response speed Slow, the user detects it later, and it consumes a lot of power and the battery life is short

Method used

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  • Piezoelectric vibration device
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Embodiment Construction

[0040] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a perspective view of one embodiment of the piezoelectric vibration device of the present invention. figure 2 will be figure 1 An exploded perspective view showing the piezoelectric vibrating device (perspective view) disassembled. image 3 from the front side figure 1 The front view of the three-dimensional view. Figure 1 to Figure 3 The piezoelectric vibrating device shown includes a vibrating plate 1 , a piezoelectric vibrating body 3 , a hammer member 5 , a conductive brush 7 , and a mounting bracket 9 .

[0041] The vibrating plate 1 is made of a metal plate made of phosphor bronze, iron-based materials, stainless steel, nickel alloy, etc., so that one end 1a of the vibrating plate 1 constitutes the terminal portion of the piezoelectric vibrating body 3 and is fixed to a metal plate described in detail later. Made on the mounting bracket 9.

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Abstract

Provided is a piezoelectric vibration device with vibrations that are easily sensed by a user and a short dissipation time for vibration. A vibration plate (1) is affixed on one end (1a). A piezoelectric oscillator (3) is formed on top of the vibration plate (1). An attachment holder (9) is affixed to the one end (1a) of the vibration plate (1) such that a terminal part (3d) of the piezoelectric oscillator (3) is left. A weight member (5) is attached to the other end (1c) of the vibration plate (1). The weight member (5) has a greater rigidity than the vibration plate (1). The natural frequency for the weight member (5) is set at three or more times the natural frequency of the vibration plate (1) on which the piezoelectric oscillator (3) is formed. The weight member (5) has a base part (5c) having a contact surface (5b) that is in contact with the vibration plate (1) and a main body part (5d) provided integrally with the base part (5c) and extending parallel to the vibration plate (1). An inclined surface (5f) is formed on a surface (5e) of the main body part (5d) that faces the vibration plate (1).

Description

technical field [0001] The present invention relates to a piezoelectric vibrating device in which a piezoelectric vibrating body is formed on a vibrating plate whose one end is fixed, and a hammer member is fixed to the other end of the vibrating plate. Background technique [0002] In recent years, smartphones, which are one form of mobile communication devices and mobile phones, have been widely used. In a mobile phone, a method of vibrating the device itself to notify the user of the use environment instead of the calling sound is adopted. As the vibrating member, an electromagnetic oscillator is generally used. The electromagnetic oscillator is constituted by coupling the eccentric weight to the shaft of the electromagnetic motor. When a call is made, the eccentric weight installed on the shaft of the electromagnetic motor rotates to generate vibration, which vibrates the body of the device to notify the user. However, there is a response speed Slow, the user will dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/06H02N2/00
CPCB06B1/0666H01L41/0926H10N30/204
Inventor 横江哲司砂原忠男有泽清田村雅英川崎修
Owner HOKURIKU ELECTRIC INDS