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Piezoelectric vibrators, piezoelectric vibrators, oscillators, electronic equipment and radio-controlled clocks

A technology of piezoelectric vibrating piece and piezoelectric vibrator, which is applied in the direction of radio-controlled timers, instruments, electrical components, etc., can solve the problems of unstable vibration characteristics of tuning fork-type bending vibrators, and improve bending rigidity and reliability excellent effect

Active Publication Date: 2018-09-28
SII CRYSTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a case where the arm portion of the tuning fork bends in the thickness direction to cause a vibration offset, making the vibration characteristics of the tuning fork type bending vibrator unstable.

Method used

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  • Piezoelectric vibrators, piezoelectric vibrators, oscillators, electronic equipment and radio-controlled clocks
  • Piezoelectric vibrators, piezoelectric vibrators, oscillators, electronic equipment and radio-controlled clocks
  • Piezoelectric vibrators, piezoelectric vibrators, oscillators, electronic equipment and radio-controlled clocks

Examples

Experimental program
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Embodiment Construction

[0031] Hereinafter, a piezoelectric vibrating reed and a piezoelectric vibrator according to an embodiment of the present invention will be described with reference to the drawings.

[0032] In addition, the scope of the present invention is not limited to the following embodiments, and can be changed arbitrarily within the scope of the technical idea of ​​the present invention. In addition, in the following drawings, in order to facilitate understanding of each structure, the actual structure may be different from the scale, number, etc. in each structure.

[0033] [Piezo Vibrator]

[0034] figure 1 and figure 2 It is a figure which shows the piezoelectric vibrator 1 of this embodiment. figure 1 It is an exploded perspective view. figure 2 is a cross-sectional view. Figure 3 to Figure 6 It is a figure which shows the piezoelectric vibrating piece 100 of this embodiment. image 3 is the floor plan. Figure 4 yes image 3 The IV-IV sectional view in . Figure 5 yes ...

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PUM

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Abstract

The invention provides a piezoelectric vibration plate, a piezoelectric vibrator, an oscillator, an electronic device and a radio-controlled clock. The bending rigidness of the base sides of vibration arm portions is improved. Meanwhile, the piezoelectric vibration plate and the piezoelectric vibrator of an excitation electrode are easily formed on the inner walls of slot parts at the end portions of the base sides. In addition, the oscillator, the electronic device and the radio-controlled clock, provided by the invention, are provided with the above piezoelectric vibrator and are excellent in reliability. The piezoelectric vibration plate is characterized by comprising a base portion; and a pair of vibration arm portions connected with the base portion and arranged side by side along the width direction. The main surfaces of the vibration arm portions are provided with slot parts along the length direction thereof. Inside the slot parts, the base sides are provided with protruding parts protruded towards the main surfaces of the vibration arm portions. The protruding parts are separated from the sidewalls of the slot parts.

Description

technical field [0001] The invention relates to a piezoelectric vibrating piece, a piezoelectric vibrator, an oscillator, electronic equipment and a radio wave clock. Background technique [0002] In order to reduce the value of the equivalent series resistance, that is, the value of CI (Crystal Impedance: Crystal Impedance), there is known a tuning fork type flexural vibrator in which a groove is formed in a tuning fork arm (vibration arm). [0003] In such a tuning fork type bending vibrator, since the groove is formed in the tuning fork arm, the bending rigidity in the thickness direction of the tuning fork arm is reduced. As a result, there are cases where the tuning fork arm portion is bent in the thickness direction to cause vibration offset, making the vibration characteristics of the tuning fork type bending vibrator unstable. [0004] In response to this problem, a structure has been proposed to improve the bending rigidity of the tuning fork arm in the tuning fork...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H9/215H03H9/19H03H9/02G04R20/00
Inventor 市村直也
Owner SII CRYSTAL TECH