THERMALLY PROTECTED VARISTOR

WIPO Patent Application WO/2019/114186

A1

A thermally protected varistor, comprising a varistor chip (1), a temperature fuse (2), and a lead wire (4). The varistor chip (1) comprises a first conductive layer (11) and a second conductive layer (12). The lead wire (4) comprises a first lead wire (41), a second lead wire (42), and a third lead wire (43). One end of the first lead wire (41) is connected to the first conductive layer (11), and the other end of the first lead wire (41) is extracted. A first end of the temperature fuse (2) is extracted as the second lead wire (42). A second end of the temperature fuse (2) is connected to the second conductive layer (12). One end of the third lead wire (43) is connected to the second conductive layer (12), and the other end of the third lead wire (43) is extracted. The temperature fuse (2) is an axial temperature fuse and is closely attached to the varistor chip (1). The thermally protected varistor can transfer the heat generated by the varistor chip (1) to the temperature fuse (2) more efficiently and accurately when the varistor chip (1) is abnormal, thereby shortening the time required by the temperature fuse (2) for disconnecting a circuit. The thermal protective varistor is small in volume, easy to install and manufacture, simple in structure, and low in cost.

XU ZHONGHOU (CN)
CHEN SHI (CN)
CHEN FEILONG (CN)
CHEN XIANGZHOU (CN)

PCT/CN2018/086142

June 20, 2019

May 09, 2018

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XIAMEN SET ELECTRONICS CO LTD (CN)

H01C7/10

CN202121318U	2012-01-18
CN202534451U	2012-11-14
CN204834226U	2015-12-02
US20070200657A1	2007-08-30
US20150270086A1	2015-09-24
CN204720267U	2015-10-21

BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)

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