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AssigneeChengdu Tieda Electronics Corp.
InventorsZhicheng Zhang, Lei Ye, Jungu Zhan, Jun Zhang, Xiaolong Shi
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Disclosed in the present invention is a novel overvoltage protective device for lightning protection, comprising a first varistor, a second varistor, a PTC Thermistor, and lead-out terminals. The first varistor and the PTC Thermistor are connected in parallel, and then further connected in series with the second varistor to form a single port combined circuit. The surge-withstand capability of the first varistor is higher than the surge-withstand capability of the second varistor. At least one of the two lead-out terminals of the single port combined circuit is a thermally-conductive end with low thermal resistance. The second varistor is thermally coupled to the PTC Thermistor. The thermally-conductive end with low thermal resistance is thermally coupled to one or both of the second varistor and the PTC Thermistor.
A novel overvoltage protective device for lightning protection includes a first varistor (3), a second varistor (1), a PTC Thermistor (2), and lead-out terminals (4), and the first varistor (3) and the PTC Thermistor (2) are connected in parallel, and then further connected in series with the second varistor (1) to form a single port combined circuit, and surge-withstand capability of the first varistor (3) is higher than surge-withstand capability of the second varistor (1);
A novel overvoltage protective device for lightning protection includes a first varistor (3), a second varistor (1), a PTC Thermistor (2), and lead-out terminals (4), and the first varistor (3) and the PTC Thermistor (2) are in parallel, and then further connected in series with the second varistor (1) to form a single port combined circuit, and the surge-withstand capability of the first varistor (3) is higher than the surge-withstand capability of the second varistor (1);
Dependencies are inferred from the claim text.