Arc extinguishing device

The utility model provides an arc extinguishing device, belongs to the low -voltage electrical equipment field. Seting up the striking groove on the arc extinguishing bars piece and having common central line X along the arc extinguishing bars piece of direction of height with the setting of interva...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: QU SHUAIQIANG, LIU HONGWU, CHEN HUILIN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model provides an arc extinguishing device, belongs to the low -voltage electrical equipment field. Seting up the striking groove on the arc extinguishing bars piece and having common central line X along the arc extinguishing bars piece of direction of height with the setting of interval state including a plurality of, the extension is contract from the notch to the bottom gradually in the striking groove, and in perpendicular to central line X's plane, the bottom in each striking groove is periodic wave form arranges, and the crest is the three arc extinguishing bars pieces of the at least cross -over connection of distance between the nearest trough extremely. The advantage: the bottom in each striking groove is periodic wave form on the direction of height arranges, and thequantity that makes the arc extinguishing bars piece that the electric arc inception touchs is only for the fourth of arc extinguishing bars piece sum, resistance in the time of can reducing electricarc like this and get int