Self-energy arc extinguishing chamber and circuit breaker

The utility model discloses a self-energy arc extinguishing chamber and a circuit breaker. The self-energy type arc extinguishing chamber comprises an air compression chamber, an expansion chamber andan air cylinder separating the air compression chamber from the expansion chamber, the air cylinder...

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Bibliographic Details
Main Authors ZHAO WEITAO, HE CHUANGWEI, HUI WEI, SUN SHUCHANG, YIN MAOHUA, LIU GENFENG, DANG DEWANG, YANG LONG, WANG WENWEN
Format Patent
LanguageChinese
English
Published 11.08.2020
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model discloses a self-energy arc extinguishing chamber and a circuit breaker. The self-energy type arc extinguishing chamber comprises an air compression chamber, an expansion chamber andan air cylinder separating the air compression chamber from the expansion chamber, the air cylinder is provided with a vent hole communicating with the air compression chamber and the expansion chamber, the air cylinder is provided with a first check valve blocking the vent hole, and the first check valve is rotatably connected to the side wall of the expansion chamber. In the on-off process of the self-energy type arc extinguishing chamber, due to the fact that the air compression chamber is compressed, the size is reduced and the air pressure rises, air pushes the first check valve to be opened, air flow is exhausted from the air compression chamber through the vent hole and enters the expansion chamber, and then the air blows arc through the throat. Since the first check valve is rotatably connected to the sid
Bibliography:Application Number: CN201921986521U