JP7109911B2 - 真空バルブ - Google Patents
真空バルブ Download PDFInfo
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- JP7109911B2 JP7109911B2 JP2017241702A JP2017241702A JP7109911B2 JP 7109911 B2 JP7109911 B2 JP 7109911B2 JP 2017241702 A JP2017241702 A JP 2017241702A JP 2017241702 A JP2017241702 A JP 2017241702A JP 7109911 B2 JP7109911 B2 JP 7109911B2
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- vacuum
- insulating container
- electron emission
- secondary electron
- emission coefficient
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Description
Claims (3)
- セラミックからなり両端に開口部を有する筒状の真空絶縁容器と、
前記真空絶縁容器内に収容され、離接可能な一対の電極と、
前記真空絶縁容器の両端の前記開口部をそれぞれ閉塞する蓋体と、
前記真空絶縁容器の両端の内壁面と対向するように配設された電界緩和シールドと、
前記真空絶縁容器の両端の端面に形成され、前記蓋体と接続するためのメタライズ層と、
前記真空絶縁容器の両端の内壁面に夫々形成され、前記セラミックより二次電子放出係数が低い材料からなる低二次電子放出係数層と、
を具備し、
前記低二次電子放出係数層は、前記真空絶縁容器の内壁面のうち、前記メタライズ層を含む両側端部から前記電界緩和シールドと対向する部位、及びさらにその内側に延在するように、
かつ、夫々の前記低二次電子放出係数層は、前記真空絶縁容器の軸方向に沿った長さが、前記真空絶縁容器の全長に対して10%以内の範囲のみに形成されており、
前記セラミックより二次電子放出係数が低い材料は、V、SiC、Cr 2 O 3 のいずれかである
ことを特徴とする真空バルブ。 - 前記低二次電子放出係数層は、前記真空絶縁容器の軸方向に間隔をあけて非連続に前記真空絶縁容器の内壁面に斑状又は縞状に形成されている
ことを特徴とする請求項1に記載の真空バルブ。 - 前記真空絶縁容器の周囲を覆う固体絶縁物層と、
前記固体絶縁物層の周囲に配設され、接地電位に接続される接地電位層と、
を具備したことを特徴とする請求項1又は2に記載の真空バルブ。
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JP2017241702A JP7109911B2 (ja) | 2017-12-18 | 2017-12-18 | 真空バルブ |
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JP2017241702A JP7109911B2 (ja) | 2017-12-18 | 2017-12-18 | 真空バルブ |
Publications (2)
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JP2019110010A JP2019110010A (ja) | 2019-07-04 |
JP7109911B2 true JP7109911B2 (ja) | 2022-08-01 |
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JP2017241702A Active JP7109911B2 (ja) | 2017-12-18 | 2017-12-18 | 真空バルブ |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010015919A (ja) | 2008-07-07 | 2010-01-21 | Toshiba Corp | 真空バルブ |
JP2011048997A (ja) | 2009-08-26 | 2011-03-10 | Toshiba Corp | モールド真空バルブ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939846U (ja) * | 1982-09-08 | 1984-03-14 | 株式会社東芝 | 真空バルブ |
JPS60100324A (ja) * | 1983-11-05 | 1985-06-04 | 株式会社東芝 | 真空バルブ |
JPH052956A (ja) * | 1990-08-03 | 1993-01-08 | Hitachi Ltd | 真空遮断器 |
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2017
- 2017-12-18 JP JP2017241702A patent/JP7109911B2/ja active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010015919A (ja) | 2008-07-07 | 2010-01-21 | Toshiba Corp | 真空バルブ |
JP2011048997A (ja) | 2009-08-26 | 2011-03-10 | Toshiba Corp | モールド真空バルブ |
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JP2019110010A (ja) | 2019-07-04 |
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