NOVEL LIGHTNING PROTECTION OVERVOLTAGE PROTECTION DEVICE

Title:

NOVEL LIGHTNING PROTECTION OVERVOLTAGE PROTECTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/011039

Kind Code:

A1

Abstract:

Disclosed in the present invention is a novel lightning protection overvoltage protection device, comprising a first varistor, a second varistor, a positive temperature coefficient thermistor, and lead-out terminals. The first varistor is connected in parallel with the positive temperature coefficient thermistor, and the parallel branch is further connected in series with the second varistor to form a single port combined circuit. The resistance of the first varistor to surge shock is higher than the resistance of the second varistor to surge shock. At least one of the two lead-out terminals of the single port combined circuit is a low thermal resistance thermally conductive end. The second varistor is thermally coupled to the positive temperature coefficient thermistor. The low thermal resistance thermally conductive end is thermally coupled to one or both of the second varistor and the positive temperature coefficient thermistor.

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Inventors:

ZHANG ZHICHENG (CN)
YE LEI (CN)
ZHAN JUNHU (CN)
ZHANG JUN (CN)
SHI XIAOLONG (CN)

Application Number:

PCT/CN2019/094123

Publication Date:

January 16, 2020

Filing Date:

July 01, 2019

Export Citation:

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Assignee:

CHENGDU TIEDA ELECTRONICS CORP (CN)

International Classes:

H02H9/04; H02H3/20; H02H9/06

Foreign References:

CN109066640A	2018-12-21
CN1581626A	2005-02-16
TWI231078B	2005-04-11
CA2065899A1	1993-04-02
CN201310268111A	2013-06-28

Other References: