JPH0490613A - Piezoelectric oscillator - Google Patents
Piezoelectric oscillatorInfo
- Publication number
- JPH0490613A JPH0490613A JP20741990A JP20741990A JPH0490613A JP H0490613 A JPH0490613 A JP H0490613A JP 20741990 A JP20741990 A JP 20741990A JP 20741990 A JP20741990 A JP 20741990A JP H0490613 A JPH0490613 A JP H0490613A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- tuning fork
- tuning
- holding
- piezoelectric vibrator
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
- H03H2003/0414—Resonance frequency
- H03H2003/0492—Resonance frequency during the manufacture of a tuning-fork
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は圧電振動子の改良に係り、詳しくは当該圧電振
動子の音叉部が保持部から独立して振動し得る圧電振動
子に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement of a piezoelectric vibrator, and more particularly to a piezoelectric vibrator in which a tuning fork portion of the piezoelectric vibrator can vibrate independently from a holding portion.
第５図及び第６図は、それぞれ従来の圧電振動子の圧電
基板の一例を示している。FIGS. 5 and 6 each show an example of a piezoelectric substrate of a conventional piezoelectric vibrator.
この圧電振動子では、圧電基板５１．（５１，）の端部
５２．（５２ｂ）にスリット５３．（５３，）が切り込
まれて５音叉部５４．（５４，）が形成されている。In this piezoelectric vibrator, a piezoelectric substrate 51. (51,) end 52. (52b) has a slit 53. (53,) is cut into the 5-tuning fork part 54. (54,) is formed.
ただし、第６図に示すスリット５５．５５は上記音叉部
５４．を上記圧電基板５１ｂの翼部５７．５７から分離
するためのものである。However, the slits 55.55 shown in FIG. 6 are the tuning fork portions 54. This is for separating the wing portions 57 and 57 of the piezoelectric substrate 51b.
また、この圧電基板５１．（５１，）の上記音叉部５４
．（５４ｋ）を除いた部分には、不図示の樹脂や保護基
板等の保持部材により保持される保持部５６．（５６，
）（斜線部）が形成されている。Moreover, this piezoelectric substrate 51. The tuning fork portion 54 of (51,)
．． (54k) is a holding portion 56 held by a holding member such as resin or a protective board (not shown). (56,
) (shaded area) is formed.
この圧電振動子では、上記音叉部５４．（５４ｉが不図
示の回路パターン等からの電力供給によって圧電振動す
る。In this piezoelectric vibrator, the tuning fork portion 54. (54i piezoelectrically vibrates due to power supply from a circuit pattern (not shown) or the like.
ところが、上記従来の圧電振動子では、上記音叉部５４
．（５４ｉの圧電振動が上記保持部５６、（５６ｉに伝
播されてしまい同音叉部５４゜（５４，）の独立した圧
電振動が阻害されていた。However, in the conventional piezoelectric vibrator, the tuning fork portion 54
．． (The piezoelectric vibration of 54i was propagated to the holding portion 56, (56i), and the independent piezoelectric vibration of the tuning fork portion 54° (54,) was inhibited.
従って１本発明は音叉部が保持部から独立して圧電振動
し得るようにした圧電振動子を提供することを目的とし
てなされたものである。Therefore, one object of the present invention is to provide a piezoelectric vibrator in which a tuning fork part can piezoelectrically vibrate independently from a holding part.
上記目的を達成するために本発明は、圧電基板の端部に
スリットが切り込まれて音叉部が形成されると共に、該
圧電基板の上記音叉部を除いた部分に保持部材により保
持される保持部が形成されてなる圧電振動子において、
上記圧電基板の上記音叉部と上記保持部との間に切り込
み部を形成したことを特徴とする圧電振動子として構成
されている。In order to achieve the above object, the present invention includes a piezoelectric substrate having a tuning fork section formed by cutting a slit into an end thereof, and a holding member held at a portion of the piezoelectric substrate excluding the tuning fork section. In a piezoelectric vibrator formed with a
The piezoelectric vibrator is characterized in that a cut portion is formed between the tuning fork portion and the holding portion of the piezoelectric substrate.
（作用〕
この圧電振動子では、圧電基板の音叉部と保持部との間
に切り込み部が形成されている。(Function) In this piezoelectric vibrator, a cut portion is formed between the tuning fork portion and the holding portion of the piezoelectric substrate.
従って、この圧電振動子では、上記音叉部と保持部とが
振動体として不完全ながら切り離された状態となるので
、上記音叉部の圧電振動が上記切り込み部により保持部
に伝わりにくくなり、同音叉部の圧電振動が従来よりも
阻害されず、計算された所定の周波数で振動する。Therefore, in this piezoelectric vibrator, the tuning fork part and the holding part are in a state where they are incompletely separated as a vibrating body, so the piezoelectric vibration of the tuning fork part is difficult to be transmitted to the holding part by the cut part, and the tuning fork part The piezoelectric vibration of the part is less inhibited than before, and it vibrates at a calculated predetermined frequency.
以下、添付図面を参照して３本発明を具体化した実施例
につき説明し９本発明の理解に供する。Hereinafter, three embodiments embodying the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.
尚、以下の実施例は本発明を具体化した一例であって１
本発明の技術的範囲を限定する性格のものではない。Note that the following example is an example embodying the present invention, and 1
It is not intended to limit the technical scope of the present invention.
第１図は本発明の一実施例に係る圧電振動子の一例を示
す斜視図、第２図は同圧電振動子の他の例を示す分解斜
視図５第３図は第１図に示す圧電振動子の圧電基板を示
す平面図、第４図は第２図に示す圧電振動子の圧電基板
を示す平面図である。1 is a perspective view showing an example of a piezoelectric vibrator according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view showing another example of the piezoelectric vibrator. 4 is a plan view showing the piezoelectric substrate of the piezoelectric vibrator shown in FIG. 2. FIG.
この圧電振動子ｔ、（ｔｉでは、第１図、第２図、第３
図、第４図に示すように従来通り圧電基板２．ｒ２１の
端部３．（３，）にスリット４ｍ（４ｈ）が切り込まれ
て音叉部５−（５ｂ）が形成されている。更に、従来と
同様、圧電基板２、（２ｉの上記音叉部５．（５，）を
除いた部分に、樹脂６（第１図）あるいは保護基板７゜
７及び接着シー）８，８（第２図）等の保持部材により
保持される保持部１０．（ｉｏｉ （第３図、第４図
の斜線部）が形成されている。なお第１図、第２図に示
すように上記圧電基板２．（２、）には、従来と同様の
回路パターン１１．（１１、）が形成されている。In this piezoelectric vibrator t, (ti, Fig. 1, Fig. 2, Fig. 3
As shown in FIG. 4, the piezoelectric substrate 2. End of r21 3. A slit 4m (4h) is cut into (3,) to form a tuning fork portion 5-(5b). Furthermore, as in the conventional case, the resin 6 (Fig. 1) or the protective substrate 7°7 and the adhesive sheet 8, 8 (see FIG. The holding part 10 is held by a holding member such as (Fig. 2). (ioi (shaded area in Figures 3 and 4)).As shown in Figures 1 and 2, the piezoelectric substrate 2. 11.(11,) is formed.
しかしながら、この圧電振動子１．（１，）では、従来
と異なり、これら第３図、第４図等で示すように上記圧
電基板２．（２ｉの音叉部５゜（５，）と上記保持部１
０．（１０ｉとの間に略半円形状の切り込み部１２．（
１２ｉが形成されている。However, this piezoelectric vibrator 1. (1,), unlike the conventional method, as shown in FIGS. 3 and 4, the piezoelectric substrate 2. (Tuning fork part 5° (5,) of 2i and the above holding part 1
0. (10i and the approximately semicircular notch 12.(
12i is formed.
それゆえに、この圧電振動子１．（＋、）では。Therefore, this piezoelectric vibrator 1. (+,) then.
上記切り込み部１２− （１２１）が圧電振動の節目
となることにより、上記回路パターン１１．（１１１）
からの電力供給による音叉部５．（５，）の圧電振動の
上記保持部１０．（１０，）への伝達がほぼ阻止される
。The cut portion 12- (121) serves as a node of piezoelectric vibration, so that the circuit pattern 11. (111)
Tuning fork section by power supply from 5. (5,) The above-mentioned holding part 10 of piezoelectric vibration. Transmission to (10,) is almost blocked.
従ってこの圧電振動子１．（１，）では、音叉部５．（
５，）が保持部１０．（１０，）がら独立して振動しや
すくなり、音叉部５．（５ｂ）が設計通りの周波数で振
動しやすくなる。Therefore, this piezoelectric vibrator 1. In (1,), the tuning fork section 5. (
5,) is the holding part 10. (10,) becomes easy to vibrate independently, and the tuning fork part 5. (5b) becomes more likely to vibrate at the designed frequency.
上記実施例では、上記切り込み部１２．Ｎ２ｉは、略半
円形状とされたが、他の形状３例えば略楕円形状やＶ字
形状等であってもよい。In the above embodiment, the cut portion 12. Although N2i has a substantially semicircular shape, it may have another shape 3, such as a substantially elliptical shape or a V-shape.
本発明により、圧電基板の端部にスリットが切り込まれ
て音叉部が形成されると共に、該圧電基板の上記音叉部
を除いた部分に保持部材により保持される保持部が形成
されてなる圧電振動子において、上記圧電基板の上記音
叉部と上記保持部との間に切り込み部を形成したことを
特徴とする圧電振動子が提供される。According to the present invention, a slit is cut into an end of a piezoelectric substrate to form a tuning fork portion, and a holding portion held by a holding member is formed in a portion of the piezoelectric substrate other than the tuning fork portion. A piezoelectric vibrator is provided, characterized in that a cut portion is formed between the tuning fork portion of the piezoelectric substrate and the holding portion.
従って、当該圧電振動子の音叉部が振動体として保持部
から切り離され、独立して設計周波数通りに振動し得る
ようになる。Therefore, the tuning fork portion of the piezoelectric vibrator is separated from the holding portion as a vibrating body, and can vibrate independently at the designed frequency.
第１図は本発明の一実施例に係る圧電振動子の一例を示
す斜視図、第２図は同圧電振動子の他の例を示す分解斜
視図、第３図は第１図に示す圧電振動子の圧電基板を示
す平面図、第４図は第２図に示す圧電振動子の圧電基板
を示す平面図、第５図及び第６図はそれぞれ従来の圧電
振動子の圧電基板の一例を示す平面図である。
〔符号の説明〕
１−．１ｂ・・・圧電振動子
２、．２．・・・圧電基板
３、、Ｌ・・・端部
４、．４．・・・スリット
５、．５．・・・音叉部
６・・・樹脂（保持部材）
７・・・保護基板（保持部材）
８・・・接着シート（保持部材）
ｉｏｎ、ｘｏｂ・・・保持部
１２ｍ、１２ｂ・・・切り込み部FIG. 1 is a perspective view showing an example of a piezoelectric vibrator according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing another example of the piezoelectric vibrator, and FIG. FIG. 4 is a plan view showing the piezoelectric substrate of the piezoelectric vibrator shown in FIG. 2, and FIGS. 5 and 6 are examples of the piezoelectric substrate of the conventional piezoelectric vibrator. FIG. [Explanation of symbols] 1-. 1b...Piezoelectric vibrator 2, . 2. . . . Piezoelectric substrate 3, L . . . End portion 4, . 4. ...Slit 5,. 5. ... Tuning fork part 6... Resin (holding member) 7... Protective board (holding member) 8... Adhesive sheet (holding member) ion, xob... Holding part 12m, 12b... Notch part
Claims (1)
形成されると共に、該圧電基板の上記音叉部を除いた部
分に保持部材により保持される保持部が形成されてなる
圧電振動子において、 上記圧電基板の上記音叉部と上記保持部と の間に切り込み部を形成したことを特徴とする圧電振動
子。1. A piezoelectric vibrator in which a tuning fork portion is formed by cutting a slit into an end of a piezoelectric substrate, and a holding portion held by a holding member is formed in a portion of the piezoelectric substrate other than the tuning fork portion, A piezoelectric vibrator characterized in that a cut portion is formed between the tuning fork portion and the holding portion of the piezoelectric substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20741990A JPH0490613A (en) | 1990-08-03 | 1990-08-03 | Piezoelectric oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20741990A JPH0490613A (en) | 1990-08-03 | 1990-08-03 | Piezoelectric oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0490613A true JPH0490613A (en) | 1992-03-24 |
Family
ID=16539444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20741990A Pending JPH0490613A (en) | 1990-08-03 | 1990-08-03 | Piezoelectric oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0490613A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1788702A2 (en) * | 2000-12-25 | 2007-05-23 | Seiko Epson Corporation | Vibrating piece, vibrator, oscillator, and electronic equipment |
| US7521846B2 (en) | 2004-10-20 | 2009-04-21 | Seiko Epson Corporation | Piezoelectric resonator element and piezoelectric device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49122768A (en) * | 1973-03-27 | 1974-11-25 | Suwa Seikosha Kk | |
| JPH01146416A (en) * | 1987-12-02 | 1989-06-08 | Murata Mfg Co Ltd | Piezoelectric resonator |
-
1990
- 1990-08-03 JP JP20741990A patent/JPH0490613A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49122768A (en) * | 1973-03-27 | 1974-11-25 | Suwa Seikosha Kk | |
| JPH01146416A (en) * | 1987-12-02 | 1989-06-08 | Murata Mfg Co Ltd | Piezoelectric resonator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1788702A2 (en) * | 2000-12-25 | 2007-05-23 | Seiko Epson Corporation | Vibrating piece, vibrator, oscillator, and electronic equipment |
| EP1788702A3 (en) * | 2000-12-25 | 2008-01-16 | Seiko Epson Corporation | Vibrating piece, vibrator, oscillator, and electronic equipment |
| JP2010035221A (en) * | 2000-12-25 | 2010-02-12 | Seiko Epson Corp | Vibrator, oscillator and electronic apparatus |
| JP2013165529A (en) * | 2000-12-25 | 2013-08-22 | Seiko Epson Corp | Vibration piece, vibrator, oscillator and electronic apparatus |
| US7521846B2 (en) | 2004-10-20 | 2009-04-21 | Seiko Epson Corporation | Piezoelectric resonator element and piezoelectric device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100273668B1 (en) | Manufacture process of quartz vibrator | |
| GB2072943A (en) | Piezo-electric crystal vibrator | |
| JP2004260718A (en) | Tuning fork type vibration pieces, manufacturing method of tuning fork type vibration pieces, and piezoelectric device | |
| US4205248A (en) | Quartz crystal vibrator electrode configuration | |
| US4450378A (en) | ZT-Cut piezo-electric resonator | |
| JPS6013608B2 (en) | Thickness sliding piezoelectric vibrator | |
| JPH0671188B2 (en) | Piezoelectric resonator | |
| JPS5845851B2 (en) | Fixing and supporting members for piezoelectric resonators | |
| JPH0490613A (en) | Piezoelectric oscillator | |
| JPH0758875B2 (en) | Piezoelectric resonator | |
| JP2002185282A (en) | Piezoelectric device | |
| JP2003318697A (en) | At-cut quartz resonator | |
| JP2017046329A (en) | Tuning-fork type crystal element | |
| JPS593678Y2 (en) | Sounding body for piezoelectric buzzer | |
| JPH0349467Y2 (en) | ||
| KR830001697B1 (en) | Thickness shear piezoelectric vibrator | |
| JP2669099B2 (en) | Resonator using third harmonic and manufacturing method thereof | |
| JPH06209225A (en) | Piezoelectric vibrator for overtone oscillation | |
| JP2003023337A (en) | Piezoelectric resonator and filter | |
| JPH0580172B2 (en) | ||
| JPS5827547Y2 (en) | crystal oscillator | |
| JPH06104685A (en) | Crystal resonator | |
| JPH04127708A (en) | Rectangular at cut crystal oscillator | |
| JPS5834971B2 (en) | Atsumi Beriketsuyoushindoushi | |
| JPS6340492B2 (en) |