Global Patent Index - EP 1939904 A3

EP 1939904 A3 20090520 - Air circuit breaker with ARC extinguishing apparatus

Title (en)

Air circuit breaker with ARC extinguishing apparatus

Title (de)

Druckluftschalter mit Vorrichtung zur ARC-Unterdrückung

Title (fr)

Disjoncteur à air avec appareil d'extinction d'ARC

Publication

EP 1939904 A3 20090520 (EN)

Application

EP 07024416 A 20071217

Priority

KR 20060139140 A 20061229

Abstract (en)

[origin: EP1939904A2] An air circuit breaker with an arc extinguishing apparatus comprising: a frame having a receiving space (112) therein; a fixed contact (120) disposed inside the frame; a movable contact (130) disposed to be in contact with or separated from the fixed contact; and an extinguishing apparatus (150) which includes a chamber member disposed in the frame and having an outlet (153) formed at one side thereof, a plurality of grids (171) disposed in the chamber member to be spaced apart from one another, and a cloth filter member (180) formed of fabric and disposed between the outlet and the grids to prevent fragments which are generated by arcs from being scattered, whereby the air circuit breaker can be fabricated with low cost, and also fragments generated due to arcs can be prevented from being excessively scattered to the exterior.

IPC 8 full level

H01H 9/34 (2006.01)

CPC (source: EP KR)

H01H 9/342 (2013.01 - EP KR); H01H 33/04 (2013.01 - KR); H01H 33/08 (2013.01 - KR); H01H 2009/347 (2013.01 - EP KR)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1939904 A2 20080702; EP 1939904 A3 20090520; CN 101211726 A 20080702; KR 20080062942 A 20080703; RU 2007149300 A 20090710

DOCDB simple family (application)

EP 07024416 A 20071217; CN 200710305737 A 20071228; KR 20060139140 A 20061229; RU 2007149300 A 20071226