Title:
VACUUM VALVE AND VACUUM CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2024/047689
Kind Code:
A1
Abstract:
A vacuum valve (10) comprises: a cylindrical vacuum vessel (4) that houses a movable side electrode (7) and a fixed side electrode (8); a first flange (1a) and a second flange (1b) that close both ends of the vacuum vessel (4); a drive rod (6) that has one end disposed within the vacuum vessel (4) by penetrating the first flange (1a), and switches between an on-state in which the movable side electrode (7) and the fixed side electrode (8) are in contact with each other and an off-state in which both the electrodes are not in contact with each other by moving the movable side electrode (7) fixed to the one end within the vacuum vessel (4); a bellows flange (9) that is fixed to the side surface of the drive rod (6); a bellows (3) that has a bellows cylindrical shape with a plurality of folds (3a), is put between the bellows flange (9) and the first flange (1a), and expands and contracts when the drive rod (6) switches between the on-state and the off-state; and a slide member (2) that is formed by a nonporous material and installed on the inner diameter side and/or the outer diameter side of the bellows (3), and is in contact with the plurality of folds (3a).
More Like This:
| WO/2017/159588 | VOLTAGE DIVIDING CAPACITOR |
| JP5525350 | Manufacturing method of contacts for vacuum valves |
| JPS6489126 | VACUUM VALVE |
Inventors:
SHINOHARA NOBUYUKI (JP)
KITAMURA TORU (JP)
YOSHIDA KEIKO (JP)
HARADA TAKAKAZU (JP)
EZAKI YUYA (JP)
YAMADA SHINTARO (JP)
KAJINAMI NOBUHIKO (JP)
KITAMURA TORU (JP)
YOSHIDA KEIKO (JP)
HARADA TAKAKAZU (JP)
EZAKI YUYA (JP)
YAMADA SHINTARO (JP)
KAJINAMI NOBUHIKO (JP)
Application Number:
PCT/JP2022/032356
Publication Date:
March 07, 2024
Filing Date:
August 29, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H33/662
Domestic Patent References:
| WO2021234870A1 | 2021-11-25 |
Foreign References:
| JPH0612947A | 1994-01-21 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
Download PDF: