公开(公告)号：US3727090A

公开(公告)日：1973-04-10

申请号：US3727090D

申请日：1971-03-01

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： NITTA T ,  SHIBUYA Y ,  YAMADA N ,  FUJIWARA Y

IPC: H01T1/00 ,  H01T4/16 ,  H01J17/04

CPC classification number: H01T1/00 ,  H01T4/16

Abstract: Discharging gap structures are disclosed including two discharge electrodes disposed in divergently spaced, opposite relationship. End portions of the electrodes define a minimum gap size and each have a radius of curvature less than the minimum gap size. The radius of curvature is not greater than 0.3 of the minimum gap size and smaller than that of the other end portions of the electrodes defining a larger gap size. An arc-extinguishing plate may be positioned 15 mm or more from the electrodes with a space adjacent the electrodes filled with 0.1 gram or more of SF6 gas.

Abstract translation: 公开了放电间隙结构，其包括以分开间隔开的相对关系设置的两个放电电极。 电极的端部限定最小间隙尺寸，并且每个具有小于最小间隙尺寸的曲率半径。 曲率半径不大于最小间隙尺寸的0.3，并且小于定义较大间隙尺寸的电极的另一端部的曲率半径。 灭弧板可以距离电极15mm或更多定位，邻近填充有0.1克或更多SF6气体的电极。