JPS5810341U

JPS5810341U - Vacuum shield electrode

Info

Publication number: JPS5810341U
Application number: JP10394381U
Authority: JP
Inventors: 和田　昭; 黒沢　幸夫
Original assignee: 株式会社日立製作所
Priority date: 1981-07-15
Filing date: 1981-07-15
Publication date: 1983-01-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の真空バルブを示す縦断面図、第２図は従
来の電極を示す部分断面図、第３図は第２図の分解図、
第４図は磁界の状況説明図、第５図は本考案の真空しゃ
断器用電極の実施例の電極を示し、イは平面図、咀よイ
の断面図、第６図および第７図はそれぞれ本考案の真空
しゃ断器用電極の異なる他の実施例の断面図である。２０・・・電極、２１・・・主接触電極、２２・・・ア
ーク消弧電極、２３・・・通電電極、２３ａ・・・通電
部、２３ｂ・・・通電部、２４・・・コイル電極、３０
・・・電極、３１・・・アーク電極、３１ａ・・・主接
触部、３１ｂ・・・アーク消弧部、３２・・・通電電極
、３３・・・コイル電極。Fig. 1 is a vertical sectional view showing a conventional vacuum valve, Fig. 2 is a partial sectional view showing a conventional electrode, Fig. 3 is an exploded view of Fig. 2,
Fig. 4 is an explanatory diagram of the state of the magnetic field, Fig. 5 shows an electrode of an embodiment of the vacuum breaker electrode of the present invention, A is a plan view, and Figs. 6 and 7 are respectively FIG. 3 is a sectional view of another embodiment of the vacuum breaker electrode of the present invention. 20... Electrode, 21... Main contact electrode, 22... Arc extinguishing electrode, 23... Current carrying electrode, 23a... Current carrying part, 23b... Current carrying part, 24... Coil electrode , 30
... Electrode, 31 ... Arc electrode, 31a ... Main contact part, 31b ... Arc extinguishing part, 32 ... Current-carrying electrode, 33 ... Coil electrode.

Claims

[Scope of utility model registration request]

A coil electrode that consists of an insulating tube, a terminal plate, and a bellows, and the inside of the container is evacuated to 10□' Torr or less, and a pair of electrodes are provided, and the electrodes apply a magnetic field in a direction parallel to the breaking arc. A vacuum breaker electrode is provided near the back of the main contact electrode, a current-carrying electrode bridging the protrusion of the coil electrode is provided, and an arc extinguishing electrode is provided in the center of the electrode, which is connected in the circumferential direction. An electrode for a vacuum breaker, characterized in that the main contact electrodes are joined together, and the energizing electrode, the main contact electrode, and the arc extinguishing electrode are made of a material with good electrical conductivity in this order.