Global Patent Index - EP 2299464 A1

EP 2299464 A1 20110323 - Self-blow switch with filling and excess pressure valve

Title (en)

Self-blow switch with filling and excess pressure valve

Title (de)

Selbstblasschalter mit Füll- und Überdruckventil

Title (fr)

Commutateur à auto-extinction doté d'une vanne de remplissage et d'un clapet de décharge

Publication

EP 2299464 A1 20110323 (DE)

Application

EP 09170549 A 20090917

Priority

EP 09170549 A 20090917

Abstract (en)

Self-blowout circuit breaker (1) has compression volume (4) connected to a heating volume (19) by at least one non-return valve (14), which heating volume is connected to an arc zone (3), such that when first arcing contact (2a) is being disconnected from associated second arcing contact (2b), an arc (15) is produced between the two arcing contacts in the arc zone. The compression volume is separated from an exhaust volume (5) by a combined filling and overpressure valve (9) formed by at least one plate having at least one tab (7) formed in the plate. Self-blowout circuit breaker (1) comprises contacts for connecting or disconnecting a circuit, at least one first arcing contact (2a) and one first rated current contact (2c)moveable back and forth in a direction of a longitudinal axis of the circuit breaker, and an exhaust volume (5). A compression volume (4) is connected to a heating volume (19) by at least one non-return valve (14), which heating volume is connected to an arc zone (3), such that when the first arcing contact is being disconnected from at least one associated second arcing contact (2b), an arc (15) is produced between the first and second arcing contacts in the arc zone. The compression volume and the exhaust volume are filled with a gas. The compression volume is separated from the exhaust volume by a combined filling and overpressure valve (9) formed by at least one plate having at least one tab (7) formed in the plate. The combined filling and overpressure valve consists entirely of an elastic material.

Abstract (de)

Der erfindungsgemässe Selbstblasschalter (1) mit Kontakten für eine Zu- bzw. Abschaltung eines Stromkreises weist ein Heizvolumen (19), ein Kompressionsvolumen (4) und ein Auspuffvolumen (5) auf, wobei das Kompressionsvolumen (4) mittels mindestens eines ersten Ventils (14) mit dem Heizvolumen verbunden ist, das seinerseits mit einer Lichtbogenzone (3) verbunden ist. In der Lichtbogenzone (3) entsteht bei der Abschaltung des Stromkreises während der Trennung eines ersten Lichtbogenkontakts (2a) von einem zugeordneten zweiten Lichtbogenkontakt (2b) ein Lichtbogen (15) zwischen den zwei Lichtbogenkontakten (2a, 2b). Das Kompressionsvolumen (4) ist mittels eines als mindestens eine Platte ausgebildeten kombinierten Füll- und Überdruckventils (9) mit mindestens einer in der Platte ausgeformten Lasche (7) vom Auspuffvolumen (5) getrennt.

IPC 8 full level

H01H 33/91 (2006.01)

CPC (source: EP US)

H01H 33/901 (2013.01 - EP US); H01H 33/91 (2013.01 - EP US); H01H 2033/906 (2013.01 - EP US); H01H 2033/908 (2013.01 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2299464 A1 20110323; EP 2299464 B1 20160831; CN 102024619 A 20110420; CN 102024619 B 20150909; US 2011062116 A1 20110317; US 8410388 B2 20130402

DOCDB simple family (application)

EP 09170549 A 20090917; CN 201010294375 A 20100917; US 88173510 A 20100914