JPS6333370Y2 - - Google Patents
Info
- Publication number
- JPS6333370Y2 JPS6333370Y2 JP1980082430U JP8243080U JPS6333370Y2 JP S6333370 Y2 JPS6333370 Y2 JP S6333370Y2 JP 1980082430 U JP1980082430 U JP 1980082430U JP 8243080 U JP8243080 U JP 8243080U JP S6333370 Y2 JPS6333370 Y2 JP S6333370Y2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- outer ring
- metal outer
- hole
- lead
- 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
- 239000011521 glass Substances 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 24
- 239000013078 crystal Substances 0.000 claims description 11
- 239000006060 molten glass Substances 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000009194 climbing Effects 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910000833 kovar Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000005394 sealing glass Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【考案の詳細な説明】
本考案は水晶振動子支持用の気密端子に関する
ものである。[Detailed Description of the Invention] The present invention relates to an airtight terminal for supporting a crystal resonator.
一般に、置き時計用、掛け時計用テレビ用、ビ
デオ用として使用されている水晶振動子は、第１
図及び第２図に示すようなMIL規格Hc−43／Ｕ、
Hc−47／Ｕの冷間圧接タイプの気密端子１に支
持され、金属キヤツプ２で気密に封止されてい
る。この気密端子１は逆舟形の金属外環３の天板
部３ａの長手方向の両端部近傍に２つのリード封
止孔４，４を穿設し、このリード封止孔４，４に
外部引出し用リード線５，５を貫通させてガラス
６で封止した構造を有する。そして、天板部３ａ
上に突出させたリード線５，５の先端部にピアノ
線等よりなるスプリングサポート７，７の下端部
を嵌挿して半田付けで固定し、このスプリングサ
ポート７，７の上端部で水晶振動子８の両側を挾
持して、水晶振動子８を弾性的に支持している。
又、金属キヤツプ２はその下端周縁のフランジ
２′を金属外環３の下端周縁に設けたフランジ３
ｂに冷間圧接して、気密に固定している。尚、金
属キヤツプ２は銅で形成され、一方の金属外環３
は表面側が銅層ｍで、裏面側がガラス６との封着
性が良い鉄・ニツケル・コバルト合金であるコバ
ール層ｎで形成された二層構造を有する。 Generally, crystal oscillators used for table clocks, wall clocks, TVs, and videos are
MIL standard Hc-43/U as shown in Figure and Figure 2,
It is supported by a Hc-47/U cold pressure welding type airtight terminal 1 and hermetically sealed with a metal cap 2. This airtight terminal 1 has two lead sealing holes 4, 4 bored in the vicinity of both longitudinal ends of the top plate part 3a of an inverted boat-shaped metal outer ring 3, and an external drawer is formed in the lead sealing holes 4, 4. It has a structure in which lead wires 5, 5 are passed through and sealed with glass 6. And the top plate part 3a
The lower ends of spring supports 7, 7 made of piano wire or the like are fitted into the tips of the lead wires 5, 5 protruding upward and fixed by soldering, and the upper ends of the spring supports 7, 7 hold the crystal oscillator. The crystal resonator 8 is supported elastically by being held between both sides of the crystal resonator 8.
Further, the metal cap 2 has a flange 2' on the lower end periphery of the metal outer ring 3.
It is cold pressure welded to b and fixed airtightly. Note that the metal cap 2 is made of copper, and one metal outer ring 3 is made of copper.
has a two-layer structure formed of a copper layer m on the front side and a Kovar layer n, which is an iron-nickel-cobalt alloy that has good sealing properties with the glass 6, on the back side.
又、金属外環３は第３図に示すように、内周面
の開口端からコバール層ｎを同一高さの位置まで
しごき加工した突起９を有する。そしてこの突起
９の位置までガラス６が充填されるようにガラス
６の量が規制され、突起９はガラス６の流れ止め
の作用をする。又、突起９をしごき加工で形成す
ることにより、コバール層ｎのしごかれた部分
n′の厚さt1が他の部分の厚さt2より小さくなり、
突起９を境に金属外環３の周面部３ｃの機械的強
度が変る。従つて、金属外環３にガラス６を封止
した後、フランジ３ｂに金属キヤツプ２を冷間圧
接する時にフランジ３ｂから周面部３ｃに圧接応
力が加わつて周面部３ｃが変形しても、この変形
は突起９の下方部分で止まり、ガラス６の封止部
分に波及しないので、ガラス６にクラツクが生じ
る心配がなくなるように設計されている。 Further, as shown in FIG. 3, the metal outer ring 3 has a protrusion 9 formed by ironing the Kovar layer n from the open end of the inner peripheral surface to a position at the same height. The amount of glass 6 is regulated so that the glass 6 is filled up to the position of this protrusion 9, and the protrusion 9 acts to prevent the glass 6 from flowing. In addition, by forming the protrusions 9 by ironing, the pressed portions of the Kovar layer n
The thickness t 1 of n′ is smaller than the thickness t 2 of other parts,
The mechanical strength of the peripheral surface portion 3c of the metal outer ring 3 changes across the protrusion 9. Therefore, even if pressure welding stress is applied from the flange 3b to the peripheral surface 3c and the peripheral surface 3c is deformed when the metal cap 2 is cold-welded to the flange 3b after the glass 6 is sealed in the metal outer ring 3, this deformation will not occur. Since the deformation stops at the lower part of the protrusion 9 and does not affect the sealed portion of the glass 6, the design is such that there is no fear of cracks occurring in the glass 6.
上記気密端子１は第４図に示すような封着治具
を使つて封着される。この封着治具は下治具１０
と上治具１１とよりなり、下治具１０は上面に金
属外環３をフランジ３ｂを下側にして嵌着する封
着孔１２と、封着孔１２の底面に突設したガラス
タブレツト支持部１３と、このガラスタブレツト
支持部１３に穿設したリード挿通孔１４，１４を
有する。又、上治具１１は金属外環３のリード封
止孔４，４に対応する凹部１５，１５を有する。
そして、気密端子１の各構成部品の組み立ては次
の要領で行われる。まず、第４図状態、つまり封
着孔１２のガラスタブレツト支持部１３上にガラ
スタブレツト１６が載置され、このガラスタブレ
ツト１６上に金属外環３がフランジ３ｂを下側に
向けて載置され、リード線５，５が金属外環３の
リード封止孔４，４とガラスタブレツト１６のリ
ード挿通孔１７，１７と下治具１０のリード挿通
孔１４，１４を一連に貫通して位置止めされた状
態にする。更に、上治具１１をその凹部１５，１
５が金属外環３のリード封止孔４，４と一致する
ように金属外環３上に載置する。この状態で全体
を加熱炉等に入れて、ガラスタブレツト１６を加
熱溶融する。すると溶融ガラスは上治具１１の押
圧力でもつて金属外環３の内周面に密着してい
き、一部はリード封止孔４，４に充填される。そ
して、ガラスタブレツト支持部１３の上面が突起
９の位置までくると上治具１１の降下が止まり、
この状態で全体を冷却してガラス６を封着形成す
る。 The airtight terminal 1 is sealed using a sealing jig as shown in FIG. This sealing jig is lower jig 10.
The lower jig 10 has a sealing hole 12 on the upper surface into which the metal outer ring 3 is fitted with the flange 3b facing downward, and a glass tablet protruding from the bottom of the sealing hole 12. It has a support part 13 and lead insertion holes 14, 14 formed in the glass tablet support part 13. Further, the upper jig 11 has recesses 15, 15 corresponding to the lead sealing holes 4, 4 of the metal outer ring 3.
Each component of the airtight terminal 1 is assembled in the following manner. First, in the state shown in FIG. 4, the glass tablet 16 is placed on the glass tablet support part 13 of the sealing hole 12, and the metal outer ring 3 is placed on the glass tablet 16 with the flange 3b facing downward. The lead wires 5, 5 pass through the lead sealing holes 4, 4 of the metal outer ring 3, the lead insertion holes 17, 17 of the glass tablet 16, and the lead insertion holes 14, 14 of the lower jig 10 in series. to keep it in position. Furthermore, the upper jig 11 is inserted into its recesses 15 and 1.
5 is placed on the metal outer ring 3 so that it is aligned with the lead sealing holes 4, 4 of the metal outer ring 3. In this state, the whole is placed in a heating furnace or the like, and the glass tablet 16 is heated and melted. Then, the molten glass comes into close contact with the inner peripheral surface of the metal outer ring 3 due to the pressing force of the upper jig 11, and a part of the glass is filled into the lead sealing holes 4, 4. Then, when the upper surface of the glass tablet support 13 reaches the position of the protrusion 9, the upper jig 11 stops descending.
In this state, the whole is cooled and the glass 6 is sealed and formed.
ところで、ガラスタブレツト１６の体積を一定
値に設定することは実際上難しく、若干のバラツ
キが生じることは避けられない。しかるに、第４
図からも明らかなように、金属外環３の内容積及
びガラスタブレツト１６の体積のバラツキによる
ガラス量の調整部分は、金属外環３のリード封止
孔４，４と、金属外環３の内壁面と下治具１０と
の間の僅かな隙間しかなく、ガラスタブレツト１
６の体積のばらつきの吸収は困難である。このガ
ラスタブレツト１６の体積が規定量より少ない場
合は、第５図に示すように、突起９部分までガラ
ス６が封着されず、ガラス封止距離が短くなつ
て、特にガラス６中に気泡１８がパツクされる
と、気密性が悪くなり、又、リード線５，５に沿
うガラス漏れ角度が急になり、レード線曲り等外
部からの機械的要因によりガラス６にクラツクが
走りやすいという問題点があつた。一方、ガラス
タブレツト１６の体積が規定量より多過ぎると、
その多い分だけ溶融ガラスが金属外環３のリード
封止孔４，４及び金属外環３と下治具１０との間
にできる微小な〓間に逃げる量が多くなり、ため
に第３図及び第６図に示すようにリード線５，５
に沿つたガラス這い上り部６′，６′の高さｈが大
きくなる。このリード線５，５の金属外環３の天
板部３ａから突出する部分のガラス這い上り部
６′，６′の高さｈが大きいと、スプリングサポー
ト７，７の取付け位置が高くなつて水晶振動子８
が金属キヤツプ２に接触したり、リード線５，５
に外力が加わつてリード線曲りがあるとガラス這
い上り部６′，６′にクラツクが発生し易くなる等
の不都合が生じる。又、ガラス６が金属外環３の
突起９を越えて這い下るので、気密端子１と金属
キヤツプ２との圧接時に、ガラス這い下り部６″
にクラツクが生じて気密変化を生じやすいという
問題点があつた。 By the way, it is actually difficult to set the volume of the glass tablet 16 to a constant value, and it is inevitable that some variation will occur. However, the fourth
As is clear from the figure, the amount of glass is adjusted due to variations in the internal volume of the metal outer ring 3 and the volume of the glass tablet 16. There is only a small gap between the inner wall surface of the glass tablet 1 and the lower jig 10.
It is difficult to absorb the volume variation of 6. If the volume of the glass tablet 16 is less than the specified amount, as shown in FIG. If 18 is packed, the airtightness will deteriorate, and the angle of glass leakage along the lead wires 5, 5 will become steep, causing cracks to easily occur in the glass 6 due to external mechanical factors such as bending of the lead wires. The dot was hot. On the other hand, if the volume of the glass tablet 16 is too large than the specified amount,
The more molten glass there is, the more the molten glass escapes into the lead sealing holes 4, 4 of the metal outer ring 3 and the minute gaps formed between the metal outer ring 3 and the lower jig 10, and as a result, as shown in FIG. and lead wires 5, 5 as shown in FIG.
The height h of the glass creeping portions 6', 6' along the height increases. If the height h of the glass climbing parts 6', 6' of the parts of the lead wires 5, 5 protruding from the top plate part 3a of the metal outer ring 3 is large, the mounting positions of the spring supports 7, 7 will be high. crystal oscillator 8
may come into contact with the metal cap 2 or lead wires 5, 5.
If an external force is applied to the lead wires and the lead wires are bent, problems such as the tendency for cracks to occur in the glass climbing portions 6' and 6' will occur. Moreover, since the glass 6 creeps down over the protrusion 9 of the metal outer ring 3, when the airtight terminal 1 and the metal cap 2 are pressed together, the glass creeping part 6''
There was a problem in that cracks were likely to occur and changes in airtightness were likely to occur.
本考案は上記従来の問題点に鑑み、これを解決
したもので、金属外環の天板部のリード封止孔間
に透孔を穿設し、この透孔から露出するガラス面
を自由表面にした気密端子を提供する。例えば上
記第１図構造の気密端子１に適用した例を第７図
及び第８図に示すと、第１図と同一符号のものは
第１図と同一内容のものを示し、本考案はこの気
密端子１の金属外環３の天板部３ａの略中央部分
に１つの透孔１９を穿設し、この透孔１９から露
出するガラス面６ａを自由表面にする。そして、
この本考案による気密端子１の構成部品の組み立
ては第９図に示すように下治具１０及び透孔１９
に対応する部分に凹部２０を有する上治具１１を
使つて行なう。 The present invention has been developed in view of the above-mentioned conventional problems, and has been developed by creating a through hole between the lead sealing holes in the top plate of the metal outer ring, and converting the glass surface exposed through the through hole into a free surface. Provides airtight terminals. For example, FIGS. 7 and 8 show an example in which the airtight terminal 1 having the structure shown in FIG. One through hole 19 is bored approximately at the center of the top plate portion 3a of the metal outer ring 3 of the airtight terminal 1, and the glass surface 6a exposed from the through hole 19 is made a free surface. and,
The components of the airtight terminal 1 according to the present invention are assembled as shown in FIG.
This is done using an upper jig 11 having a recess 20 in a portion corresponding to the area.
するとガラスタブレツト１６の体積が規定量
か、それより少い場合は溶融ガラスのリード線
５，５への這い上り量が少なく、又、溶融ガラス
は透孔１９に第１０図実線位置に示す程度、つま
り透孔１９の径や上治具１１の重さにもよるが、
透孔１９から食み出さない程度に入り込み、何ら
問題はない。次にガラスタブレツト１６の体積が
規定量より多い場合、その多い分の溶融ガラスは
透孔１９に逃げ込む。そのため、透孔１９には溶
融ガラスが第１０図鎖線位置で示す程度に盛り上
るが、リード線５，５に沿うガラス這い上り及び
金属外環３の突起９を越えるガラス這い下りがな
くなる。つまり、透孔１９は過少なガラスの凹入
口として及び余分なガラスの逃げ口として作用す
る。又、一方で透孔１９は金属外環３の天板部３
ａの内側に溜る気泡の逃げ口として作用し、ガラ
ス６中に気泡がパツクされることがなくなる。 Then, if the volume of the glass tablet 16 is equal to or less than the specified amount, the amount of molten glass creeping up to the lead wires 5, 5 will be small, and the molten glass will enter the through hole 19 at the position shown by the solid line in Fig. 10. Although it depends on the degree, that is, the diameter of the through hole 19 and the weight of the upper jig 11,
It penetrates into the through hole 19 to the extent that it does not protrude, and there is no problem. Next, when the volume of the glass tablet 16 is larger than the specified amount, the larger amount of molten glass escapes into the through hole 19. Therefore, although the molten glass rises in the through hole 19 to the extent shown by the chain line in FIG. 10, the glass does not creep up along the lead wires 5, 5 or go down over the protrusion 9 of the metal outer ring 3. In other words, the through hole 19 acts as a concave entrance for insufficient glass and as an escape port for excess glass. Moreover, on the other hand, the through hole 19 is connected to the top plate part 3 of the metal outer ring 3.
It acts as an escape port for air bubbles accumulated inside the glass 6, and prevents air bubbles from being packed inside the glass 6.
尚、本考案は上記実施例に限らず、例えば透孔
は複数個設けたり、楕円形状などにしてもよい。 Note that the present invention is not limited to the above-mentioned embodiments, and for example, a plurality of through holes may be provided, or the holes may have an elliptical shape.
以上説明したように、本考案によれば封着ガラ
スの量にバラツキがあつても、ガラス量が少ない
ときは透孔部分でガラス凹入し、又、ガラス量が
多いときは透孔に逃げるから、リード線に沿つて
這い上つたり、金属外環の突起を越えて這い下る
心配がなく、従つてリード線上に取付ける水晶振
動子の取付け位置が安定し、而もリード線曲げに
よるガラスクラツクの発生も防止され、気密端子
と金属キヤツプとの冷間圧接時にガラスクラツク
が発生することが防止される。又、透孔から封着
時の溶融ガラス内の気泡が抜け出るため、ガラス
中に気泡がパツクされることがなくなり、ガラス
と金属外環との封着強度が向上し、気密性も改善
されて、信頼性の良い気密端子が提供できる。 As explained above, according to the present invention, even if the amount of sealing glass varies, when the amount of glass is small, the glass dents in the hole, and when there is a large amount of glass, it escapes into the hole. Therefore, there is no need to worry about the crystal oscillator climbing up along the lead wire or climbing down over the protrusion of the metal outer ring. Therefore, the mounting position of the crystal resonator mounted on the lead wire is stable, and there is no risk of glass cracking caused by bending the lead wire. This also prevents the occurrence of glass cracks during cold pressure welding between the hermetic terminal and the metal cap. In addition, since air bubbles in the molten glass escape through the through holes during sealing, air bubbles are no longer stuck in the glass, improving the sealing strength between the glass and the metal outer ring, and improving airtightness. , we can provide highly reliable airtight terminals.
第１図は従来の水晶用気密端子に金属キヤツプ
を固着した装置の側断面図、第２図は第１図Ａ−
Ａ線に沿う断面図、第３図は第１図要部の拡大断
面図、第４図は第１図気密端子の封着方法を説明
するガラ封着前の組立状態を示す封着治具の一部
側断面図、第５図及び第６図は従来の気密端子に
おいて生じやすい不良状態を示す側断面図、第７
図は本考案による気密端子の一実施例を示す側断
面図、第８図は第７図の平面図、第９図は第７図
の気密端子の封着方法を説明するガラス封着前の
組立状態を示す封着治具の一部側断面図、第１０
図は第７図の要部拡大断面図である。
１′…気密端子、３…金属外環、３ａ…天板部、
４…リード封止孔、５…リード線、６…ガラス、
８…水晶振動子、１９…透孔。
Figure 1 is a side sectional view of a device in which a metal cap is fixed to a conventional hermetic terminal for crystal, and Figure 2 is Figure 1A-
A sectional view taken along line A, Figure 3 is an enlarged sectional view of the main part of Figure 1, and Figure 4 is a sealing jig showing the assembled state before flat sealing to explain the sealing method of the airtight terminal in Figure 1. FIGS. 5 and 6 are partial side sectional views showing defective states that are likely to occur in conventional airtight terminals.
The figure is a side sectional view showing one embodiment of the airtight terminal according to the present invention, FIG. 8 is a plan view of the airtight terminal of FIG. A partial side sectional view of the sealing jig showing the assembled state, No. 10
The figure is an enlarged sectional view of the main part of FIG. 7. 1'...Airtight terminal, 3...Metal outer ring, 3a...Top plate part,
4...Lead sealing hole, 5...Lead wire, 6...Glass,
8...Crystal oscillator, 19...Through hole.
Claims (1)
ぞれリード封止孔を形成し、各リード封止孔にリ
ード線を貫通させて、金属外環内に充填したガラ
スで封止した気密端子に於て、 前記金属外環の天板部の両リード封止孔間に透
孔を穿設し、この透孔から露出するガラス面を自
由表面にしたことを特徴とする水晶用気密端子。[Scope of Claim for Utility Model Registration] Lead sealing holes are formed near both ends of the top plate portion of an inverted boat-shaped metal outer ring, and lead wires are passed through each lead sealing hole and inserted into the metal outer ring. In the airtight terminal sealed with filled glass, a through hole is bored between both lead sealing holes in the top plate portion of the metal outer ring, and the glass surface exposed through the through hole is made a free surface. An airtight terminal for crystals featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980082430U JPS6333370Y2 (en) | 1980-06-12 | 1980-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980082430U JPS6333370Y2 (en) | 1980-06-12 | 1980-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS577224U JPS577224U (en) | 1982-01-14 |
| JPS6333370Y2 true JPS6333370Y2 (en) | 1988-09-06 |
Family
ID=29444782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980082430U Expired JPS6333370Y2 (en) | 1980-06-12 | 1980-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6333370Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625185Y2 (en) * | 1977-01-10 | 1981-06-13 |
-
1980
- 1980-06-12 JP JP1980082430U patent/JPS6333370Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS577224U (en) | 1982-01-14 |
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