JPS5475294A - Hermetic electric insulator device for extreme low- temperature apparatus - Google Patents
Hermetic electric insulator device for extreme low- temperature apparatusInfo
- Publication number
- JPS5475294A JPS5475294A JP14217877A JP14217877A JPS5475294A JP S5475294 A JPS5475294 A JP S5475294A JP 14217877 A JP14217877 A JP 14217877A JP 14217877 A JP14217877 A JP 14217877A JP S5475294 A JPS5475294 A JP S5475294A
- Authority
- JP
- Japan
- Prior art keywords
- hermetic
- insulator device
- metal
- extreme low
- temperature apparatus
- 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.)
- Granted
Links
Landscapes
- Insulators (AREA)
Abstract
PURPOSE:To enhance the performamce of the hermetic electric insulator device by absorbing the stress caused by the heat shrinkage with use of the metal bellows. CONSTITUTION:The extreme low-temperature apparatus has many areas where the electric and hermetic insulation for lead wire 1 which supplies the power. The hermetic insulator device consists of circular upper and lower metal 12 and 9, alumina ceramic insulator material 8 which is covered with metal 12 and 9 into a stem form and is soldered with silver, connecting material 14, and device main body 80 which is composed of metal bellows 13 and attached between material 8 and 14. The insulator device is then attached to the outer tank of the extreme low-temperature apparatus. In such constitution, the stress caused by the heat shrinkage of metal fittings 12 and 9 plus material 8 functions in the direction where 12 and 9 tightens 8, so no exfoliation is caused. As a result, the hermetic insulation is ensured under the high vacuum state and the high atmosphric pressure state. The same effect is ensured at other connecting parts through the same structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14217877A JPS5475294A (en) | 1977-11-29 | 1977-11-29 | Hermetic electric insulator device for extreme low- temperature apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14217877A JPS5475294A (en) | 1977-11-29 | 1977-11-29 | Hermetic electric insulator device for extreme low- temperature apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5475294A true JPS5475294A (en) | 1979-06-15 |
JPS5622387B2 JPS5622387B2 (en) | 1981-05-25 |
Family
ID=15309173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14217877A Granted JPS5475294A (en) | 1977-11-29 | 1977-11-29 | Hermetic electric insulator device for extreme low- temperature apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5475294A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57143383U (en) * | 1981-03-04 | 1982-09-08 |
-
1977
- 1977-11-29 JP JP14217877A patent/JPS5475294A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5622387B2 (en) | 1981-05-25 |
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