JPH0225562B2 - - Google Patents
Info
- Publication number
- JPH0225562B2 JPH0225562B2 JP6158983A JP6158983A JPH0225562B2 JP H0225562 B2 JPH0225562 B2 JP H0225562B2 JP 6158983 A JP6158983 A JP 6158983A JP 6158983 A JP6158983 A JP 6158983A JP H0225562 B2 JPH0225562 B2 JP H0225562B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- piezoelectric element
- piezoelectric
- conductive material
- electrically conductive
- 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.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims 2
- 239000011521 glass Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
- H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【発明の詳細な説明】
本発明は、圧電素子を筒状のケースに封入して
チツプ状にしてなる圧電振動部品に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a piezoelectric vibrating component in which a piezoelectric element is sealed in a cylindrical case and shaped into a chip.
このような圧電振動部品には第１図に示すよう
に、圧電素子１を筒状のケース２に挿入し、該ケ
ース２の両開口端部３，３に導電性の端子４，４
を取り付け、圧電素子１を端子４，４の凹部５，
５で支持させたものがある。なお６，６は導電性
接合部材である。ところがこの従来のものでは、
端子４，４の形状が複雑でコストダウンの妨げに
なつていた。 In such a piezoelectric vibrating component, as shown in FIG.
Attach the piezoelectric element 1 to the recess 5 of the terminal 4,
There is something supported by 5. Note that 6 and 6 are conductive joining members. However, with this conventional method,
The shapes of the terminals 4, 4 are complicated, which hinders cost reduction.
本発明は、上述の鑑み、端子形状が簡単でかつ
圧電素子の振動を絶対に妨げない構造を有する圧
電振動部品を提供しようとする。 In view of the above, the present invention seeks to provide a piezoelectric vibrating component that has a simple terminal shape and a structure that does not impede the vibration of the piezoelectric element.
以下、本発明を図面に示す実施例に基づき詳細
に説明する。 Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
第２図はこの実施例の斜射図であり、第３図は
第２図の−線に沿う縦断面図であり、第４図
は第３図の−線に沿う横断面図である。この
圧電振動部品２１は、円筒状のガラスケース２２
を有している。このガラスケース２２は透明また
は半透明の材質でできている。またこのガラスケ
ース２２の両端は開口されている。この両開口端
部２３，２３は小径に絞り込まれる。両端開口端
部２３，２３には金属キヤツプ２５，２５が被せ
られる。この金属キヤツプ２５，２５にはクリー
ム半田、導電性塗料、導電性接着剤等の導電性接
合部材２６が充填されている。このため、圧電素
子２４の各端部はこの部材２６を介して金属キヤ
ツプに電気的、機械的に接続される。ここでこの
圧電素子２４は例えば短形板状の圧電基板２４ａ
の両面に互いに部分的に対向し合う対向電極２４
ｂ，２４ｃを設けたいわゆるエネルギー閉込め形
厚み滑り振動モードの共振子である。なお、ガラ
スケース２２は円筒状以外に角筒状や異径筒状に
してもよい。また、ガラスケース２２の開口端部
２３，２３の一方を絞り込むだけにしてもよい。
更にまた、圧電素子２４の対向電極２４ｂ，２４
ｃのパターンは特に限定されることはなく、所望
の共振特性に対応して適宜選定される。金属キヤ
ツプ２５，２５を省略して半田、導電塗料、導電
性接着剤でその機能を代用してもよい。なお、図
におけるケース２２は若干強調して中央部がかな
り脹らんだ形状に描いているが、圧電素子２４の
振動を妨げないためにはわずかなすき間、通常は
肉眼で識別できない位のすき間があればよいので
あるから、肉眼ではわからない位内径が中央部で
大きくなつたケースで充分である。このような構
造のケースは、ガラス、アルミナをはじめセラミ
ツク材料を用いれば容易に得られる。 FIG. 2 is a perspective view of this embodiment, FIG. 3 is a longitudinal cross-sectional view taken along the line -- in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line -- in FIG. This piezoelectric vibrating component 21 has a cylindrical glass case 22.
have. This glass case 22 is made of a transparent or semi-transparent material. Further, both ends of this glass case 22 are open. Both open ends 23, 23 are narrowed down to a small diameter. The open ends 23, 23 are covered with metal caps 25, 25. The metal caps 25, 25 are filled with a conductive bonding member 26 such as cream solder, conductive paint, conductive adhesive, or the like. Therefore, each end of the piezoelectric element 24 is electrically and mechanically connected to the metal cap via this member 26. Here, this piezoelectric element 24 is, for example, a rectangular plate-shaped piezoelectric substrate 24a.
Counter electrodes 24 partially facing each other on both sides of the
This is a so-called energy-confined thickness-shear vibration mode resonator in which the resonators b and 24c are provided. Note that the glass case 22 may have a rectangular tube shape or a tube shape with different diameters instead of a cylindrical shape. Alternatively, only one of the open ends 23, 23 of the glass case 22 may be narrowed down.
Furthermore, the opposing electrodes 24b, 24 of the piezoelectric element 24
The pattern c is not particularly limited and can be appropriately selected depending on the desired resonance characteristics. The metal caps 25, 25 may be omitted and their functions may be replaced by solder, conductive paint, or conductive adhesive. Note that the case 22 in the figure is slightly emphasized and drawn to have a considerably swollen shape at the center, but in order not to impede the vibration of the piezoelectric element 24, a small gap, usually one that cannot be discerned with the naked eye, is required. It is sufficient that the inner diameter is larger in the center than it can be seen with the naked eye. A case with such a structure can be easily obtained by using ceramic materials such as glass and alumina.
以上のように、本発明によると、ケースの開口
端部の構成が簡単になり、また、圧電素子の振動
部分が接触しないケース形状にしたので、安価な
チツプ状圧電振動部品が得られる。 As described above, according to the present invention, the configuration of the opening end of the case is simplified, and the case is shaped such that the vibrating portion of the piezoelectric element does not come into contact with it, so that an inexpensive chip-shaped piezoelectric vibrating component can be obtained.
第１図は従来例の縦断面図、第２図〜第４図は
本発明の一実施例を示し、第２図は斜視図、第３
図は第２図の−線に沿う縦断面図、第４図は
第３図の−線に沿う横断面図である。
２２……ガラスケース、２３……ガラスケース
２２の開口端部、２４……圧電素子、２５……端
子、２７……導電性接合部材。
FIG. 1 is a vertical sectional view of a conventional example, FIGS. 2 to 4 show an embodiment of the present invention, FIG. 2 is a perspective view, and FIG.
The figure is a longitudinal cross-sectional view taken along the - line in FIG. 2, and FIG. 4 is a cross-sectional view taken along the - line in FIG. 3. 22... Glass case, 23... Open end of glass case 22, 24... Piezoelectric element, 25... Terminal, 27... Conductive joining member.
Claims (1)
には環状に電気導電物が被覆され、ケースには圧
電素子が収納され、この圧電素子の端部は電気導
電物に支持させてなる圧電振動部品において、圧
電素子は、エネルギーとじこめ形振動モードを用
いた共振子であり、振動領域の周囲のケース部分
内径が残りの部分より大きいことを特徴とする圧
電振動部品。1 It has a cylindrical case, the open end of this case is coated with an electrically conductive material in a ring shape, a piezoelectric element is housed in the case, and the end of this piezoelectric element is supported by the electrically conductive material. The piezoelectric vibrating component is characterized in that the piezoelectric element is a resonator using an energy confinement type vibration mode, and the inner diameter of the case portion around the vibrating region is larger than that of the remaining portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6158983A JPS59122010A (en) | 1983-04-07 | 1983-04-07 | Piezoelectric oscillation parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6158983A JPS59122010A (en) | 1983-04-07 | 1983-04-07 | Piezoelectric oscillation parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59122010A JPS59122010A (en) | 1984-07-14 |
| JPH0225562B2 true JPH0225562B2 (en) | 1990-06-04 |
Family
ID=13175481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6158983A Granted JPS59122010A (en) | 1983-04-07 | 1983-04-07 | Piezoelectric oscillation parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59122010A (en) |
-
1983
- 1983-04-07 JP JP6158983A patent/JPS59122010A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59122010A (en) | 1984-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0171921B1 (en) | Electronic component and method of fabricating the same | |
| JPS6258923U (en) | ||
| US4160928A (en) | Case assembly for piezoelectric resonator | |
| JPH0225562B2 (en) | ||
| JPS58116809A (en) | Manufacture of crystal oscillator | |
| US4677397A (en) | Quartz crystal oscillator with crystal supported on spring | |
| JPH0414861Y2 (en) | ||
| JPS5812762B2 (en) | crystal oscillator | |
| JP2001308214A (en) | Method and structure for sealing ceramic package | |
| JPS6119210A (en) | Piezoelectric vibrator | |
| EP0117253A1 (en) | Cylindrical piezoelectric vibrator | |
| JPS5847885B2 (en) | Oscillator support structure | |
| JPH0479167B2 (en) | ||
| JPS59139713A (en) | Piezoelectric oscillator | |
| JPH0450651Y2 (en) | ||
| JPH0537535Y2 (en) | ||
| JPS62166608A (en) | Piezoelectric resonator | |
| JPS59176918A (en) | Crystal oscillator | |
| JPS6163106A (en) | Package of crystal resonator | |
| JPS6019385Y2 (en) | Tuning fork type piezoelectric vibrator | |
| JPH0597123U (en) | Surface mount crystal unit | |
| JPH08307194A (en) | Vibrator | |
| JPS59160305A (en) | Chip type piezoelectric oscillation parts | |
| JPS6144407B2 (en) | ||
| JPS62247614A (en) | Chip type piezoelectric vibrator |