Surge suppressor applied to fail-safe switch machine

• Main Author: WANG GUORUN
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The utility model discloses a surge suppressor applied to a fail-safe switch machine. The surge suppressor comprises a box body and a PCB (Printed Circuit Board) arranged in the box body, wherein a plurality of protection channel circuits are welded on the PCB; the protection channel circuit comprises at least one piezoresistor; one end of each protection channel line is connected with a corresponding outgoing line terminal; the plurality of outgoing line terminals are led out of the box body and are fixed on the surface of the box body; the plurality of wire outlet terminals are used for connecting corresponding driving ends of the switch machine; the other ends of the plurality of protection channel lines are connected in parallel and then are connected with one end of a series loop formed by a discharge tube assembly and a piezoresistor; and the other end of the series loop is a grounding end and is led out of the box body. The surge suppressor can suppress common-mode and differential-mode pulse voltage a