Title:
SURGE PROTECTION DEVICE HAVING HIGH BREAKING CAPACITY
Document Type and Number:
WIPO Patent Application WO/2021/057163
Kind Code:
A1
Abstract:
A surge protection device having high breaking capacity, comprising: a housing (1) having at least two lead-out electrodes (10a, 10b); and a voltage-limiting apparatus (2) and a thermal trip mechanism (3) disposed in the housing (1). The thermal trip mechanism (3) comprises a fixed component (30), a movable component (31), and a thermal trigger device (33). The fixed component (30) and the movable component (31) form a plurality of displacement switches arranged in series, and the thermal trigger device (33) and the movable component (31) are linked. The invention solves the problems in which thermal protection devices of existing surge protection devices do not have overcurrent protection functions, and are prone to false tripping or early tripping when surge currents flow through.
Inventors:
ZHANG XIANGGUI (CN)
GAO TIAN'AN (CN)
GAO TIAN'AN (CN)
Application Number:
PCT/CN2020/100457
Publication Date:
April 01, 2021
Filing Date:
July 06, 2020
Export Citation:
Assignee:
XIAMEN SET ELECTRONICS CO LTD (CN)
International Classes:
H02H9/04
Foreign References:
| CN110492463A | 2019-11-22 | |||
| CN210490462U | 2020-05-08 | |||
| CN209434871U | 2019-09-24 | |||
| CN101692393A | 2010-04-07 | |||
| CN107516885A | 2017-12-26 | |||
| CN107424881A | 2017-12-01 | |||
| US5321574A | 1994-06-14 | |||
| CN201910932326A | 2019-09-29 |
Other References:
See also references of EP 3972068A4
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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