JPH04237976A - Glass hermetic seal connector - Google Patents
Glass hermetic seal connectorInfo
- Publication number
- JPH04237976A JPH04237976A JP1683791A JP1683791A JPH04237976A JP H04237976 A JPH04237976 A JP H04237976A JP 1683791 A JP1683791 A JP 1683791A JP 1683791 A JP1683791 A JP 1683791A JP H04237976 A JPH04237976 A JP H04237976A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- metal
- welded
- cylindrical
- metal case
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 45
- 239000002184 metal Substances 0.000 claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 14
- 239000010935 stainless steel Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 21
- 230000035515 penetration Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 14
- 238000009413 insulation Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、例えば、真空容器や圧
力容器の壁を貫通する電線に気密に接続されるのに用い
られるガラスハーメチックシールコネクタの改良に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a glass hermetic seal connector used for hermetically connecting an electric wire passing through the wall of a vacuum vessel or a pressure vessel, for example.
【０００２】真空容器や圧力容器の壁を貫通する電線は
、機密の漏れを防止するために、高い気密構造を有する
ガラスハーメチックシールコネクタを介して外部に接続
される。この種の電線は、容器の壁を気密に貫通する金
属ケース内を貫通し、ガラスハーメチックシールコネク
タは、この金属ケースと電線の導体とに接続される。[0002] Electrical wires penetrating the walls of vacuum vessels and pressure vessels are connected to the outside through glass hermetic seal connectors having a highly airtight structure in order to prevent leakage of secrets. This type of wire passes through a metal case that hermetically passes through the wall of the container, and a glass hermetic seal connector is connected to the metal case and the conductor of the wire.
【０００３】このような電線貫通部に用いられるガラス
ハーメチックシールコネクタは、一般に、電線貫通部の
金属ケースに溶接されるべき円筒状金属アイレットと、
この金属アイレット内にガラス封着部によって気密を保
って絶縁保持される導体とから成っている。Glass hermetic seal connectors used for such wire penetrations generally include a cylindrical metal eyelet to be welded to the metal case of the wire penetration;
It consists of a conductor that is kept airtight and insulated within this metal eyelet by a glass sealing part.
【０００４】0004
【発明が解決しようとする課題】電線貫通部の金属ケー
ス及びガラスハーメチックシールコネクタの金属アイレ
ットは、防錆性の要求からステンレス鋼で作られること
が多い。一方、ステンレス鋼とガラス（封着部）との線
膨張係数の差は、鉄鋼とガラスとの線膨張係数の差に比
べて大きく、従ってガラス封着部の高温気密性（耐熱性
）を考慮すると、金属アイレットはステンレス鋼よりも
鉄鋼で作られているのが望ましい。The metal case of the wire penetration part and the metal eyelet of the glass hermetic seal connector are often made of stainless steel due to the requirement of rust prevention. On the other hand, the difference in linear expansion coefficient between stainless steel and glass (sealed part) is larger than that between steel and glass, so the high temperature airtightness (heat resistance) of the glass sealed part is taken into consideration. It is then preferable for the metal eyelet to be made of steel rather than stainless steel.
【０００５】しかし、金属アイレットが鉄鋼で作られて
いると、熱伝導性が高くなり、このため、金属アイレッ
トを電線貫通部の金属ケースに溶接する際に、溶接時の
熱がガラス封着部に達し、ガラス封着部の気密を破る虞
があるため、この面から気密性が低下する欠点があった
。However, if the metal eyelet is made of steel, it has high thermal conductivity, so when welding the metal eyelet to the metal case of the wire penetration part, the heat during welding is transferred to the glass sealing part. There is a risk that the airtightness of the glass-sealed portion may be broken, resulting in a reduction in airtightness.
【０００６】本発明の目的は、上記の欠点を回避し、高
い気密性と高い耐熱性と良好な溶接性とを有するガラス
ハーメチックシールコネクタを提供することにある。An object of the present invention is to avoid the above-mentioned drawbacks and provide a glass hermetic seal connector having high airtightness, high heat resistance, and good weldability.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記の課題を
解決するために、電線貫通部の金属ケースに溶接される
べき円筒状金属アイレットとこの金属アイレット内にガ
ラス封着部によって気密を保って絶縁保持される導体と
から成るガラスハーメチックシールコネクタにおいて、
金属アイレットは、金属ケースに溶接されるべきステン
レス鋼製の第１の円筒部分とこの第１の円筒部分に溶接
される鉄鋼製の第２の円筒部分とから成り、ガラス封着
部は、この第２の円筒部分に設けられていることを特徴
とするガラスハーメチックシールコネクタを提供するも
のである。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a cylindrical metal eyelet to be welded to a metal case of an electric wire penetration part, and a glass sealing part in this metal eyelet to provide airtightness. In a glass hermetic seal connector consisting of a conductor and a conductor that is maintained and insulated,
The metal eyelet consists of a first cylindrical part made of stainless steel to be welded to the metal case and a second cylindrical part made of steel welded to this first cylindrical part, and the glass sealing part The present invention provides a glass hermetic seal connector characterized in that it is provided in a second cylindrical portion.
【０００８】[0008]
【作用】このように、金属アイレットが溶接すべき金属
ケース側の円筒部分をステンレス鋼製とし、またガラス
封着部が設けられる円筒部分を鉄鋼製とすると、ステン
レス鋼の円筒部分を金属ケースに溶接するので、ガラス
封着部に伝達する溶接熱の量が少なく、溶接熱によって
ガラス封着部の気密性を低下することがない。またガラ
ス封着部は、線膨張係数が比較的近い鉄鋼製の円筒部分
に設けられるので、高温での気密性が高く、耐熱性を維
持することができる。[Operation] In this way, if the cylindrical part on the metal case side where the metal eyelet is to be welded is made of stainless steel, and the cylindrical part where the glass sealing part is provided is made of steel, then the stainless steel cylindrical part can be welded to the metal case. Since welding is performed, the amount of welding heat transmitted to the glass sealing part is small, and the airtightness of the glass sealing part is not deteriorated by welding heat. Further, since the glass sealing portion is provided in a cylindrical portion made of steel whose linear expansion coefficients are relatively similar, airtightness at high temperatures is high and heat resistance can be maintained.
【０００９】[0009]
【実施例】本発明の実施例を図面を参照して詳細にのべ
ると、図１は本発明に係るガラスハーメチックシールコ
ネクタ１０を示し、このガラスハーメチックシールコネ
クタ１０は、電線貫通部の金属ケース、例えば炉壁を気
密に貫通し内部に耐熱電線１２が延びている金属ケース
１４に溶接されるべき円筒状金属アイレット１６と、こ
の金属アイレット１６内にガラス封着部１８によって気
密を保って絶縁保持される導体２０とから成っている。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a glass hermetic seal connector 10 according to the present invention. For example, a cylindrical metal eyelet 16 to be welded to a metal case 14 that penetrates the furnace wall airtightly and has a heat-resistant electric wire 12 extending therein, and a glass sealing part 18 inside this metal eyelet 16 to maintain airtightness and insulation. It consists of a conductor 20.
【００１０】電線１２は、コネクタ１０に接続する部分
で導体１２ａを露出してその上に絶縁チューブ１３が被
せられている。金属ケース１４は、例えば防錆性を考慮
してステンレス鋼から作られている。The electric wire 12 has a conductor 12a exposed at a portion connected to the connector 10, and an insulating tube 13 is placed over the exposed conductor 12a. The metal case 14 is made of stainless steel, for example, in consideration of rust prevention.
【００１１】金属アイレット１６は、金属ケース１４に
溶接されるべきステンレス鋼製の第１の円筒部分２２と
、この第１の円筒部分２２に溶接された鉄鋼製の第２の
円筒部分２４とから成り、ガラス封着部１８は、第２の
円筒部分２４内に設けられている。尚、第２の円筒部分
２４は、第１の円筒部分２２と溶接して一体化された後
、ニッケルメッキ等の処置をして防錆を施しておく。
また、ガラス封着部１８は、第１と第２の円筒部分２２
、２４の溶接時の熱による影響を受けないようにするた
めに、これらの円筒部分２２、２４を相互に溶接した後
に形成される。The metal eyelet 16 consists of a first cylindrical part 22 made of stainless steel to be welded to the metal case 14 and a second cylindrical part 24 made of steel welded to the first cylindrical part 22. The glass sealing portion 18 is provided within the second cylindrical portion 24. Note that, after the second cylindrical portion 24 is welded and integrated with the first cylindrical portion 22, it is treated with nickel plating or the like to prevent rust. Further, the glass sealing portion 18 is connected to the first and second cylindrical portions 22.
, 24 are formed after welding these cylindrical parts 22, 24 together in order to avoid being affected by the heat during welding.
【００１２】このコネクタ１０は、図示のように、電線
１２の端部を金属ケース１４の端部から突出するように
導出し、コネクタ１０の導体２０と電線１２の導体１２
ａとを圧縮スリーブ２６で突合せ接合して接続部２８を
形成した後、この接続部２８が金属ケース１４内に引き
込まれるように電線１２を金属ケース１４内に戻し、金
属ケース１４と金属アイレット１６の第１の円筒部分２
２とを相互に溶接して電線貫通部に気密に取付けられる
。As shown in the figure, in this connector 10, the ends of the electric wires 12 are led out so as to protrude from the ends of the metal case 14, and the conductors 20 of the connector 10 and the conductors 12 of the electric wires 12 are connected to each other.
a and are butt-joined with the compression sleeve 26 to form a connection part 28, and then the electric wire 12 is returned to the metal case 14 so that the connection part 28 is drawn into the metal case 14, and the metal case 14 and the metal eyelet 16 are the first cylindrical part 2 of
2 and are welded together to be airtightly attached to the wire penetration part.
【００１３】このように、金属アイレット１６が溶接す
べき金属ケース１４側の第１の円筒部分２２をステンレ
ス鋼製とし、またガラス封着部１８が設けられる第２の
円筒部分２４を鉄鋼製とすると、熱伝導性の低いステン
レス鋼の第１の円筒部分２２を金属ケース１４に溶接す
るので、ガラス封着部１８に伝達する溶接熱の量が少な
く、従って溶接熱によってガラス封着部１８の気密性を
低下することがない。As described above, the first cylindrical portion 22 on the metal case 14 side to which the metal eyelet 16 is to be welded is made of stainless steel, and the second cylindrical portion 24 on which the glass sealing portion 18 is provided is made of steel. Then, since the first cylindrical part 22 made of stainless steel with low thermal conductivity is welded to the metal case 14, the amount of welding heat transmitted to the glass sealing part 18 is small, and therefore the welding heat causes the glass sealing part 18 to be welded. There is no reduction in airtightness.
【００１４】また、導体２０を気密を保って絶縁保持す
るガラス封着部１８は、その線膨張係数が比較的近い鉄
鋼製の第２の円筒部分２４内に設けられるので、高温雰
囲気でもガラス封着部１８のガラスと第２の円筒部分２
４との間の気密を破ることがなく、従って高い耐熱性を
維持することができる。Furthermore, since the glass sealing portion 18 that keeps the conductor 20 airtight and insulated is provided within the second cylindrical portion 24 made of steel whose coefficient of linear expansion is relatively similar, the glass sealing portion 18 can be sealed even in a high temperature atmosphere. Glass of fitting part 18 and second cylindrical part 2
4, and therefore high heat resistance can be maintained.
【００１５】尚、図示の実施例では、第１と第２の円筒
部分２２、２４の両方に跨がって薄肉部分２２ａ、２４
ａが形成されているが、これは、金属アイレット１６を
金属ケース１４に溶接する際にガラス封着部１８に熱が
伝達されるのを可及的に少なくする熱伝導抵抗部分を形
成している。In the illustrated embodiment, the thin portions 22a and 24 extend over both the first and second cylindrical portions 22 and 24.
a is formed, which forms a heat conduction resistance part that reduces as much as possible heat transfer to the glass sealing part 18 when the metal eyelet 16 is welded to the metal case 14. There is.
【００１６】[0016]
【発明の効果】本発明によれば、上記のように、金属ア
イレットが溶接すべき金属ケース側の円筒部分をステン
レス鋼製とし、またガラス封着部が設けられる円筒部分
を鉄鋼製としたので、金属アイレットを金属ケースに溶
接する際に、ステンレス鋼の円筒部分が熱抵抗となって
ガラス封着部に伝達する溶接熱の量が少ないため、溶接
熱によってガラス封着部の気密性を低下することがなく
、またガラス封着部は、線膨張係数が比較的近い鉄鋼製
の円筒部分に設けられるので、高温での気密性が高く、
耐熱性を維持することができる。[Effects of the Invention] According to the present invention, as described above, the cylindrical portion on the metal case side where the metal eyelet is to be welded is made of stainless steel, and the cylindrical portion where the glass sealing portion is provided is made of steel. When welding the metal eyelet to the metal case, the cylindrical part of the stainless steel acts as a thermal resistance and the amount of welding heat transmitted to the glass seal is small, so the welding heat reduces the airtightness of the glass seal. Moreover, since the glass sealing part is installed in a cylindrical part made of steel with relatively similar coefficients of linear expansion, it has high airtightness at high temperatures.
Heat resistance can be maintained.
【図１】本発明に係るガラスハーメチックシールコネク
タの断面図である。FIG. 1 is a sectional view of a glass hermetic seal connector according to the present invention.
１０ ガラスハーメチックシールコネクタ１２ 電
線
１４ 金属ケース
１６ 金属アイレット
１８ ガラス封着部
２０ 導体
２２ 第１の円筒部分
２４ 第２の円筒部分10 Glass hermetic seal connector 12 Electric wire 14 Metal case 16 Metal eyelet 18 Glass sealing part 20 Conductor 22 First cylindrical part 24 Second cylindrical part
Claims (1)
べき円筒状金属アイレットと前記金属アイレット内にガ
ラス封着部によって気密を保って絶縁保持される導体と
から成るガラスハーメチックシールコネクタにおいて、
前記金属アイレットは、前記金属ケースに溶接されるべ
きステンレス鋼製の第１の円筒部分と前記第１の円筒部
分に溶接される鉄鋼製の第２の円筒部分とから成り、前
記ガラス封着部は、前記第２の円筒部分に設けられてい
ることを特徴とするガラスハーメチックシールコネクタ
。1. A glass hermetic seal connector comprising a cylindrical metal eyelet to be welded to a metal case of an electric wire penetration part, and a conductor held airtight and insulated within the metal eyelet by a glass sealing part,
The metal eyelet consists of a first cylindrical part made of stainless steel to be welded to the metal case and a second cylindrical part made of steel to be welded to the first cylindrical part. The glass hermetic seal connector is provided in the second cylindrical portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1683791A JPH04237976A (en) | 1991-01-18 | 1991-01-18 | Glass hermetic seal connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1683791A JPH04237976A (en) | 1991-01-18 | 1991-01-18 | Glass hermetic seal connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04237976A true JPH04237976A (en) | 1992-08-26 |
Family
ID=11927317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1683791A Pending JPH04237976A (en) | 1991-01-18 | 1991-01-18 | Glass hermetic seal connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04237976A (en) |
-
1991
- 1991-01-18 JP JP1683791A patent/JPH04237976A/en active Pending
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