Title:
サージ防護素子
Document Type and Number:
Japanese Patent JP6745055
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a surge protection element capable of reducing damage on an outer peripheral portion of a protruding electrode portion due to arc discharge.SOLUTION: The surge protection element includes: an insulating tube 2; and a pair of sealing electrodes 3 for sealing a discharge control gas inside thereof by closing opening ends of the insulating tube at both ends. The pair of sealing electrodes has a pair of projecting electrode portions 5 projecting inward and facing each other. A central recess 5a is formed in a central region of the facing surfaces of the pair of projecting electrode portions. A protruding portion 5c protruding from the bottom surface in the central recessed portion toward the opposing protruding electrode portion than the opposing surface around the central recessed portion is formed.SELECTED DRAWING: Figure 1
Inventors:
Yoshikazu Mayu
Ryo Sugimoto
Makoto Sakai
Ryo Sugimoto
Makoto Sakai
Application Number:
JP2016086039A
Publication Date:
August 26, 2020
Filing Date:
April 22, 2016
Export Citation:
Assignee:
Mitsubishi Materials Corporation
International Classes:
H01T4/12; H01T1/20; H01T1/22; H01T4/10
Domestic Patent References:
| JP60038491U | ||||
| JP4167386A |
Attorney, Agent or Firm:
Hideyuki Sugiura