Arc extinguishing device of circuit breaker

The utility model discloses an arc extinguishing device of a circuit breaker. The arc extinguishing device comprises an arc striking piece, arc extinguishing grid sheets and a cylindrical housing. An inner chamber of the housing is provided with the plurality of arc extinguishing grid sheets. The ho...

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Bibliographic Details
Main Author ZHU FENGJI
Format Patent
LanguageChinese
English
Published 27.11.2013
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model discloses an arc extinguishing device of a circuit breaker. The arc extinguishing device comprises an arc striking piece, arc extinguishing grid sheets and a cylindrical housing. An inner chamber of the housing is provided with the plurality of arc extinguishing grid sheets. The housing is provided with an arc striking opening for introducing an electric arc conveniently. A gas producing sleeve is arranged in the housing, the gas producing sleeve is used for producing arc extinguishing gas, and the shape of the gas producing sleeve is matched with the shape of the housing. The outer wall of the gas producing sleeve is closely attached to the inner wall of the housing. An exhaust end is arranged on the other ends, opposite to the arc striking opening, of the arc extinguishing grid sheets. The exhaust end is provided with a plurality of exhaust vents. One end of the arc striking piece is connected with the housing, and the other end of the arc striking piece extends towards the arc striking op
Bibliography:Application Number: CN20132366085U