JPH0469921U - - Google Patents
Info
- Publication number
- JPH0469921U JPH0469921U JP11361690U JP11361690U JPH0469921U JP H0469921 U JPH0469921 U JP H0469921U JP 11361690 U JP11361690 U JP 11361690U JP 11361690 U JP11361690 U JP 11361690U JP H0469921 U JPH0469921 U JP H0469921U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrating
- vibrating element
- case
- piezoelectric
- principal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案の一実施例の圧電振動部品の断
面図、第２図は従来の圧電振動部品の断面図、第
３図は圧電振動部品に用いられる圧電振動素子を
示す斜視図、第４図は圧電振動素子の共振が生じ
た場合の周波数と最大変位量との関係を示す図、
第５図は実施例の圧電振動部品において圧電振動
素子の変位が規制された状態を説明するための断
面図である。
図において、２１は圧電振動部品、２２はケー
ス、２３は圧電振動素子、２７は圧電基板、２８
，２９は共振電極、ｔ１，ｔ２は圧電振動素子の
主面とケース内面との間の距離を示す。
FIG. 1 is a sectional view of a piezoelectric vibrating component according to an embodiment of the present invention, FIG. 2 is a sectional view of a conventional piezoelectric vibrating component, FIG. 3 is a perspective view showing a piezoelectric vibrating element used in the piezoelectric vibrating component, and FIG. Figure 4 is a diagram showing the relationship between frequency and maximum displacement when resonance occurs in the piezoelectric vibrating element.
FIG. 5 is a cross-sectional view for explaining a state in which the displacement of the piezoelectric vibrating element is regulated in the piezoelectric vibrating component of the example. In the figure, 21 is a piezoelectric vibrating component, 22 is a case, 23 is a piezoelectric vibrating element, 27 is a piezoelectric substrate, 28
, 29 are resonance electrodes, and t 1 and t 2 are the distances between the main surface of the piezoelectric vibrating element and the inner surface of the case.
Claims (1)
みすべり振動モードを利用した圧電振動素子と、 前記圧電振動素子を収納するケースとを備え、 前記圧電振動素子の両主面とケース内面との間
に、該圧電振動素子の振動を妨げないための空間
が形成されている圧電振動部品において、 前記圧電振動素子の少なくとも一方の主面とケ
ース内面との間の距離が、圧電振動素子の限界変
位量よりも小さくされていることを特徴とする、
圧電振動部品。[Claims for Utility Model Registration] A piezoelectric vibrating element comprising: a piezoelectric vibrating element using a thickness shear vibration mode formed by forming resonant electrodes on both principal surfaces of a piezoelectric substrate; and a case housing the piezoelectric vibrating element; A piezoelectric vibrating component in which a space is formed between both principal surfaces of the piezoelectric vibrating element and the inner surface of the case so as not to impede vibration of the piezoelectric vibrating element, wherein: between at least one principal surface of the piezoelectric vibrating element and the inner surface of the case; characterized in that the distance is smaller than the limit displacement amount of the piezoelectric vibrating element,
Piezoelectric vibrating parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11361690U JPH0469921U (en) | 1990-10-29 | 1990-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11361690U JPH0469921U (en) | 1990-10-29 | 1990-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0469921U true JPH0469921U (en) | 1992-06-22 |
Family
ID=31861222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11361690U Pending JPH0469921U (en) | 1990-10-29 | 1990-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0469921U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747567A (en) * | 1980-06-27 | 1982-03-18 | Honda Motor Co Ltd | Method for charging in vertical casting machine |
| JPH0257622B2 (en) * | 1984-04-06 | 1990-12-05 | Kurose Shoten Gomei |
-
1990
- 1990-10-29 JP JP11361690U patent/JPH0469921U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747567A (en) * | 1980-06-27 | 1982-03-18 | Honda Motor Co Ltd | Method for charging in vertical casting machine |
| JPH0257622B2 (en) * | 1984-04-06 | 1990-12-05 | Kurose Shoten Gomei |
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