Title:
NOVEL THERMAL-PROTECTION METAL-OXIDE VARISTOR AND SURGE PROTECTOR
Document Type and Number:
WIPO Patent Application WO/2015/188752
Kind Code:
A1
Abstract:
A novel thermal-protection metal-oxide varistor and a surge protector. The novel thermal-protection metal-oxide varistor comprises a metal-oxide varistor (MOV) and an alloyed thermal cutoff (TCO). The metal-oxide varistor comprises a metal-oxide varistor substrate, a first MOV metal electrode and a second MOV metal electrode. The alloyed thermal cutoff comprises a housing, a first TCO electrode, a second TCO electrode and an alloy wire with a low melting point which is welded between the first TCO electrode and the second TCO electrode, wherein the second MOV metal electrode and the first TCO electrode are the same electrode; and the alloy wire with a low melting point is placed in the housing. The present application has the following advantages of shortening a heat conduction path between the metal-oxide varistor and the alloyed thermal cutoff, and relatively effectively reducing the thermal impedance of the heat conduction path, thereby shortening the time required by the thermal cutoff to open a circuit when the metal-oxide varistor abnormally emits heat, improving the validity of a thermal protection function of the thermal cutoff, and achieving the purpose of improving the usage security of the metal-oxide varistor.
Inventors:
XU ZHONGHOU (CN)
Application Number:
PCT/CN2015/081185
Publication Date:
December 17, 2015
Filing Date:
June 10, 2015
Export Citation:
Assignee:
XIAMEN SET ELECTRONICS CO LTD (CN)
International Classes:
H01C7/12; H01C1/144; H01C1/16; H01H37/76; H02H9/04
Foreign References:
| CN201838413U | 2011-05-18 | |||
| CN201113420Y | 2008-09-10 | |||
| CN101303926A | 2008-11-12 | |||
| CN203950625U | 2014-11-19 |
Attorney, Agent or Firm:
BEIJING RISEHIGH INTELLECTUAL PROPERTY LAW FIRM (CN)
北京润泽恒知识产权代理有限公司 (CN)
北京润泽恒知识产权代理有限公司 (CN)
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