发明公开
- 专利标题： SURGE PROTECTION ELEMENT
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申请号： EP17789128.0申请日： 2017-03-17
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公开(公告)号： EP3451473A1公开(公告)日： 2019-03-06
- 发明人: MAYUZUMI Yoshitaka , SUGIMOTO Ryoichi , SAKAI Shinji
- 申请人： Mitsubishi Materials Corporation
- 申请人地址： 3-2, Otemachi 1-chome Chiyoda-ku Tokyo 100-8117 JP
- 专利权人： Mitsubishi Materials Corporation
- 当前专利权人： Mitsubishi Materials Corporation
- 当前专利权人地址： 3-2, Otemachi 1-chome Chiyoda-ku Tokyo 100-8117 JP
- 代理机构： Hoffmann Eitle
- 优先权： JP2016087678 20160426
- 国际公布： WO2017187839 20171102
- 主分类号： H01T4/12
- IPC分类号： H01T4/12
摘要：
A surge protective device of the present invention includes an insulating tube 2, a pair of sealing electrodes 3 for closing openings on both ends of the insulating tube so as to seal a discharge control gas inside the tube, wherein the pair of sealing electrodes has a pair of convex electrode portions 5 projecting inwardly so as to face to each other, and at least one groove part 2a extending in a circumferential direction is formed on the inner circumferential surface of the insulating tube.
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