To obtain a reliable vacuum valve by suppressing a molten solder material from reaching an arc shield inner surface, for stable voltage-resistance performance, in the case where an arc shield being sprit in halves is jointed together by brazing.
The vacuum valve includes a vacuum container 2 made from first and second cylindrical insulating members jointed together through a ring-like sealing member 1, a pair of electrodes which is arranged inside the vacuum container to allow contacting and separating, and an arc shield 5 which is formed to enclose the periphery of the contacting/separating part of the pair of electrodes and is secured to the vacuum container through the sealing member. The arc shield consists of a first arc shield 51 and a second arc shield 52 which are connected together by abutting parts of flange parts 51a and 52a protruding outwards in the radial direction. The abutting parts are provided with flow-in prevention means 7 which prevents the molten solder material from flowing into the inner peripheral surface side of the arc shield.
| JPS58169833A | 1983-10-06 | |||
| JPS5637243U | 1981-04-09 | |||
| JPH10241514A | 1998-09-11 | |||
| JPS58169833A | 1983-10-06 |
Masuo Oiwa
Toshihide Kodama
Keigo Murakami