JPH0964679A - Supporting structure for quartz oscillator - Google Patents
Supporting structure for quartz oscillatorInfo
- Publication number
- JPH0964679A JPH0964679A JP23343895A JP23343895A JPH0964679A JP H0964679 A JPH0964679 A JP H0964679A JP 23343895 A JP23343895 A JP 23343895A JP 23343895 A JP23343895 A JP 23343895A JP H0964679 A JPH0964679 A JP H0964679A
- Authority
- JP
- Japan
- Prior art keywords
- vibrating piece
- crystal
- metal ring
- chip
- crystal vibrating
- 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
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は水晶振動子の支持構造に
関するものであり、特に容器が楕円形状のシリンダータ
イプの水晶振動子に有効な水晶振動子の支持構造に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crystal resonator support structure, and more particularly to a crystal resonator support structure effective for a cylinder type crystal resonator having an elliptical container.
【０００２】[0002]
【従来の技術】水晶振動子は多くの分野でクロック源と
して採用されている。特に水晶振動子は音叉型水晶振動
片を使用したシリンダータイプ、振動片を矩形状にした
ＡＴカット水晶振動片を使用したシリンダータイプが多
用されている。（本明細書においては水晶振動子で説明
をするが、本発明の支持構造は振動片の材料には左右さ
れない。）図１は従来技術による矩形状水晶振動片の片
面を２本のリードに固定した水晶振動子の正面断面図で
あり、図２は側面断面図である。2. Description of the Related Art Quartz resonators are employed as clock sources in many fields. In particular, as the crystal resonator, a cylinder type using a tuning fork type crystal resonator element and a cylinder type using an AT-cut crystal resonator element having a rectangular resonator element are frequently used. (In the present specification, a crystal resonator will be described, but the support structure of the present invention is not affected by the material of the resonator element.) FIG. It is a front sectional view of the fixed crystal unit, and FIG. 2 is a side sectional view.
【０００３】水晶振動片１は、２本のリード４、４を絶
縁材料（ガラス）３で金属環２にハーメチックシールし
た気密端子の２本のリード４、４に片面で接着固定され
ている。封止管５は水晶振動片１を覆い金属環２の外周
に圧入されている。The crystal vibrating piece 1 is bonded and fixed on one side to two leads 4 and 4 of an airtight terminal in which two leads 4 and 4 are hermetically sealed to a metal ring 2 with an insulating material (glass) 3. The sealing tube 5 covers the crystal vibrating piece 1 and is press-fitted to the outer periphery of the metal ring 2.
【０００４】一般に２本のリード４、４を結んだ線は金
属環２の中心を通るように組立られている。これはハー
メチック前の組立作業性によるものと２本のリード４、
４と金属環２間の距離を確保するためである。金属環２
とリードの位置が偏心していると組立作業性が著しく低
下し、また、金属環２とリード４間の絶縁性が低下す
る。これは気密端子が小さくなるほど顕著であり、歩留
の低下を来す。Generally, the wire connecting the two leads 4 and 4 is assembled so as to pass through the center of the metal ring 2. This is due to the assembly workability before the hermetic and the two leads 4,
This is to secure a distance between the metal ring 4 and the metal ring 2. Metal ring 2
If the positions of the leads are eccentric, the assembly workability is significantly reduced, and the insulation between the metal ring 2 and the leads 4 is reduced. This becomes more remarkable as the airtight terminal becomes smaller, resulting in a decrease in yield.
【０００５】水晶振動片１を片面で固定するのは、水晶
振動片の電極とリードの接続が片面で済むこと、接着剤
の塗布が片面で済むこと、接着剤硬化時の水晶振動片の
保持が容易になること等、組立時のメリットが多い。The crystal vibrating piece 1 is fixed on one side by connecting the electrodes and leads of the crystal vibrating piece on one side, applying the adhesive on one side, and holding the crystal vibrating piece when the adhesive is cured. There are many merits at the time of assembling such as easy.
【０００６】しかし水晶振動子の小型化が望まれる中
で、水晶振動子の容積効率を良くするために容器を楕円
形にすることが提案されているが、従来技術のような片
面支持では達成するのが困難であった。However, while miniaturization of the crystal unit is desired, it has been proposed to make the container oval in order to improve the volumetric efficiency of the crystal unit. It was difficult to do.
【０００７】[0007]
【発明が解決しようとする課題】水晶振動子を小型化す
るために、水晶振動片を容器の中央部に配置し容積効率
を上げるのが本発明の目的であるが、同時に気密端子の
組立作業性を低下させずに且つ水晶振動片の固定強度を
確保できる水晶振動子の支持構造でなければならない。SUMMARY OF THE INVENTION It is an object of the present invention to arrange a crystal resonator element in the central portion of a container to increase the volumetric efficiency in order to miniaturize the crystal resonator. The supporting structure of the crystal resonator must be such that the fixing strength of the crystal vibrating piece can be secured without deteriorating the property.
【０００８】[0008]
【課題を解決するための手段】少なくとも、電極を形成
した水晶振動片、２本のリード、金属環、絶縁材料、封
止管で構成される水晶振動子の支持構造において、２本
のリードのインナー部端面で水晶振動片との導通を取
り、金属環の一部で水晶振動片を位置決めする。At least a crystal vibrating piece having electrodes formed thereon, two leads, a metal ring, an insulating material, and a sealing tube for supporting a crystal resonator are used. Conductivity is established with the crystal vibrating piece at the end face of the inner part, and the crystal vibrating piece is positioned by a part of the metal ring.
【０００９】[0009]
【実施例】図３は本発明の１実施例であり水晶振動子の
正面断面図、図４は側面断面図である。図５は図３のＡ
−Ａ断面図である。図６〜図９は金属環の変形実施例で
ある。図１０は金属環に形成した水晶振動片固定部１７
の一部を折り曲げ、固定部の面積を増やし固定部の応力
集中を緩和する構造例である。FIG. 3 is a front sectional view of a crystal unit according to an embodiment of the present invention, and FIG. 4 is a side sectional view thereof. FIG. 5 shows A of FIG.
It is -A sectional drawing. 6 to 9 show modified examples of the metal ring. FIG. 10 shows a crystal vibrating piece fixing portion 17 formed on a metal ring.
Is a structural example in which a part of is bent to increase the area of the fixed portion and relax the stress concentration of the fixed portion.
【００１０】図３、図４、図５において、６は水晶振動
片、７は金属環、８はリード、９は接着剤、１０は接着
剤、１１、１２は金属環７に形成された水晶振動片固定
部、１３は絶縁材料である。金属環７と二本のリード
８、８は絶縁材料１３と共に治具により位置決めされハ
ーメチックされている。矩形状の水晶振動片６はその一
端を２本のリード８のインナー部端面８’、８’上に置
かれ、導電性の接着剤または半田９により電極（図示せ
ず）との電気的導通をとっている。と同時に水晶振動片
６は金属環７に形成された水晶振動片固定部１１、１２
間に位置しており、その一部を非導電性の接着剤（望ま
しくは紫外線硬化型接着剤）１０により水晶振動片固定
部１１、１２に固定されている。In FIGS. 3, 4, and 5, 6 is a crystal vibrating piece, 7 is a metal ring, 8 is a lead, 9 is an adhesive, 10 is an adhesive, and 11 and 12 are crystals formed on the metal ring 7. The vibrating element fixing portion 13 is made of an insulating material. The metal ring 7 and the two leads 8 and 8 are hermetically positioned together with the insulating material 13 by a jig. The rectangular crystal vibrating piece 6 has one end placed on the inner surface 8 ', 8'of the two leads 8 and is electrically connected to an electrode (not shown) by a conductive adhesive or solder 9. Is taking. At the same time, the crystal vibrating piece 6 is fixed to the crystal vibrating piece fixing portions 11 and 12 formed on the metal ring 7.
It is located between them, and a part thereof is fixed to the crystal vibrating piece fixing portions 11 and 12 by a non-conductive adhesive (preferably an ultraviolet curable adhesive) 10.
【００１１】金属環７は帯材よりプレス加工により形成
されるので、精度の良い同形状のものが量産出来、従来
円形に打ち抜いていた部分の一部を残して水晶振動片固
定部としているのでコストアップになることはない。リ
ードは丸棒でストレートでよいので安価であり、組立時
も方向性が自由であり組立性が良い。また、ハーメチッ
クも各部品を治具により位置決めして処理できるので精
度の良い気密端子が量産できる。Since the metal ring 7 is formed by pressing a band material, it is possible to mass-produce the same shape with high precision, and to leave a part of the circular punched part as a crystal vibrating piece fixing part. There is no cost increase. Since the lead can be a round bar and straight, it is inexpensive, and the direction is free during assembly, and the assemblability is good. In addition, since the hermetics can be processed by positioning each part with a jig, accurate hermetic terminals can be mass-produced.
【００１２】図６、図７、図８は金属環に形成する水晶
振動片の位置決め固定部を片側の１ヶ所にした変形例で
あり、図８は金属環外形を楕円形状にした例である。水
晶振動片の固定部が片側なので、水晶振動片の厚さの影
響を受けない構造となり周波数の異なる（水晶振動片の
厚みの異なる）場合でも気密端子を共通化できる。図９
は金属環に形成する水晶振動片の位置決め固定部を片側
の２ヶ所にした例である。水晶振動片の厚さの影響を受
けず、水晶振動片の固定を強化した構造である。FIGS. 6, 7 and 8 show a modification in which the positioning and fixing portion of the crystal vibrating piece formed on the metal ring is provided at one location on one side, and FIG. 8 shows an example in which the outer shape of the metal ring is elliptical. . Since the fixed portion of the crystal vibrating piece is on one side, the structure is not affected by the thickness of the crystal vibrating piece, and the airtight terminal can be shared even when the frequency is different (the thickness of the crystal vibrating piece is different). FIG.
Is an example in which the positioning and fixing portions of the crystal vibrating piece formed on the metal ring are provided at two locations on one side. The structure is such that the crystal vibrating piece is reinforced without being affected by the thickness of the crystal vibrating piece.
【００１３】図１０は金属環に形成した水晶振動片固定
部１７の一部を折り曲げ、固定部の面積を増やし固定部
の応力集中を緩和する構造例である。水晶振動片の固定
部の応力が分散するので固定による特性劣化が少なくな
る。FIG. 10 shows an example of a structure in which a part of the crystal vibrating piece fixing portion 17 formed on a metal ring is bent to increase the area of the fixing portion and reduce stress concentration in the fixing portion. Since the stress of the fixed portion of the crystal vibrating piece is dispersed, the characteristic deterioration due to the fixing is reduced.
【００１４】図５は水晶振動片を両側からはさみ込む構
造、図８は片持ちの構造であるが、それぞれの固定１
１、１２、１６の剛性が大きいので厚みが０．１ｍｍ以
上の水晶振動片に適している。図６、図７は片持ちの構
造であり固定部１４、１５に可撓性（弾性）があるので
厚みが０．１ｍｍ以下の水晶振動片に適している。FIG. 5 shows a structure in which a crystal vibrating piece is sandwiched from both sides, and FIG. 8 shows a cantilever structure.
Since the rigidity of Nos. 1, 12, and 16 is large, it is suitable for a crystal vibrating piece having a thickness of 0.1 mm or more. 6 and 7 are cantilevered structures, and the fixing portions 14 and 15 have flexibility (elasticity), and thus are suitable for a crystal vibrating piece having a thickness of 0.1 mm or less.
【００１５】[0015]
【発明の効果】本発明によれば、水晶振動片がシリンダ
ーの中央配置できるので容積効率が良くなり水晶振動子
の小型化に適している。特に楕円形の容器に効果があ
る。リードは従来の丸棒でよい。According to the present invention, since the crystal vibrating piece can be arranged in the center of the cylinder, the volume efficiency is improved and the crystal resonator is suitable for downsizing. Especially effective for oval containers. The lead may be a conventional round bar.
【図１】従来技術による水晶振動子の正面断面図。FIG. 1 is a front sectional view of a crystal resonator according to a conventional technique.
【図２】従来技術による水晶振動子の側面断面図。FIG. 2 is a side sectional view of a crystal unit according to the related art.
【図３】本発明の一実施例で水晶振動子の正面断面図。FIG. 3 is a front sectional view of a crystal unit according to an embodiment of the present invention.
【図４】本発明の一実施例で水晶振動子の側面断面図。FIG. 4 is a side sectional view of a crystal unit according to an embodiment of the present invention.
【図５】図３のＡ−Ａ断面図。5 is a cross-sectional view taken along the line AA of FIG.
【図６】金属環の変形実施例。FIG. 6 is a modification of the metal ring.
【図７】金属環の変形実施例。FIG. 7 shows a modification of the metal ring.
【図８】金属環の変形実施例であり、外形が楕円状であ
る。FIG. 8 is a modification of the metal ring, which has an elliptical outer shape.
【図９】金属環の変形実施例。FIG. 9 shows a modified example of the metal ring.
【図１０】金属環と水晶振動片の固定部の応力集中を緩
和するための金属環の実施例を示す側面断面図。FIG. 10 is a side cross-sectional view showing an embodiment of a metal ring for relieving stress concentration on a fixed portion between the metal ring and the crystal vibrating piece.
１ 水晶振動片 ２ 金属環 ３ 絶縁材料 ４ リード ５ 封止管 ６ 水晶振動片 ７ 金属環 ８ リード ８’ インナー部端面 ９ 接着剤 １０ 接着剤 １１ 水晶振動片固定部 １２ 水晶振動片固定部 １３ 絶縁材料 １４ 水晶振動片固定部 １５ 水晶振動片固定部 １６ 水晶振動片固定部 １７ 水晶振動片固定部 DESCRIPTION OF SYMBOLS 1 Crystal vibrating piece 2 Metal ring 3 Insulating material 4 Lead 5 Sealing tube 6 Crystal vibrating piece 7 Metal ring 8 Lead 8'Inner end face 9 Adhesive 10 Adhesive 11 Crystal vibrating piece fixing part 12 Crystal vibrating piece fixing part 13 Insulation Material 14 Crystal vibrating piece fixing part 15 Crystal vibrating piece fixing part 16 Crystal vibrating piece fixing part 17 Crystal vibrating piece fixing part
Claims (2)
片、２本のリード、金属環、絶縁材料、封止管で構成さ
れる水晶振動子の支持構造において、２本のリードのイ
ンナー部端面で水晶振動片と導通を取り、金属環の一部
で水晶振動片を位置決めすることを特徴とする水晶振動
子の支持構造。1. A support structure for a crystal resonator comprising at least a crystal vibrating reed having electrodes, two leads, a metal ring, an insulating material, and a sealing tube, at the inner end faces of the two leads. A supporting structure for a crystal resonator, which is electrically connected to the crystal vibrating piece and is positioned by a part of a metal ring.
巾方向が楕円の長径方向と一致していることを特徴とす
る請求項１記載の水晶振動子の支持構造。2. The support structure for a crystal resonator according to claim 1, wherein the outer shape of the metal ring is elliptical, and the width direction of the crystal piece is coincident with the major axis direction of the ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23343895A JPH0964679A (en) | 1995-08-19 | 1995-08-19 | Supporting structure for quartz oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23343895A JPH0964679A (en) | 1995-08-19 | 1995-08-19 | Supporting structure for quartz oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0964679A true JPH0964679A (en) | 1997-03-07 |
Family
ID=16955050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23343895A Pending JPH0964679A (en) | 1995-08-19 | 1995-08-19 | Supporting structure for quartz oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0964679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000008755A1 (en) * | 1998-08-07 | 2000-02-17 | Seiko Epson Corporation | Piezoelectric vibrator container, piezoelectric vibrator using it and circuit board mounting piezoelectric vibrator thereon and production method for piezoelectric vibrator |
-
1995
- 1995-08-19 JP JP23343895A patent/JPH0964679A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000008755A1 (en) * | 1998-08-07 | 2000-02-17 | Seiko Epson Corporation | Piezoelectric vibrator container, piezoelectric vibrator using it and circuit board mounting piezoelectric vibrator thereon and production method for piezoelectric vibrator |
| US6590314B1 (en) | 1998-08-07 | 2003-07-08 | Seiko Epson Corporation | Piezoelectric resonator container, piezoelectric resonator using the same, circuit board mounting piezoelectric resonator thereon, and method for manufacturing piezoelectric resonator |
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