EP 2795652 A1 20141029 - DEVICE AND METHOD FOR SWITCHING ELECTRICAL LOAD CIRCUITS
Title (en)
DEVICE AND METHOD FOR SWITCHING ELECTRICAL LOAD CIRCUITS
Title (de)
VORRICHTUNG UND VERFAHREN ZUM SCHALTEN ELEKTRISCHER LASTKREISE
Title (fr)
DISPOSITIF ET PROCÉDÉ DE COMMUTATION DE CIRCUITS DE CHARGE ÉLECTRIQUES
Publication
Application
Priority
- DE 102011122439 A 20111224
- EP 2012004196 W 20121006
Abstract (en)
[origin: WO2013091746A1] The invention relates to a device and to a method for switching electrical load circuits (2), comprising an electromagnetic contactor (1) having a magnetic drive that is formed from a magnet yoke (1.1) by a magnet coil (1.2) and a magnet armature (1.3) to which a contact bridge (1.4) is coupled by means of a contact retainer (1.5) as a movable contactor contact, wherein in the switched-on state the contactor (1) generates a magnetic retaining force (FH) for contacting the contact bridge (1.4) having fixed contacts (A, B), wherein the retaining force (FH) results from a magnetic field generated by the magnet coil (1.2) and the retaining force (FH) is greater than an armature opening force (FR). According to the invention, an overload contact (M) is integrated in an exciter current circuit (5) of the magnet coil (1.2) in such a way that, if the exciter current circuit (5) closed and a movement of the contact bridge (1.4) against the magnetic retaining force (FH) occurs, the magnet coil (1.2) can be short-circuited by closing the overload contact (M).
IPC 8 full level
H01H 71/26 (2006.01); H01H 3/00 (2006.01)
CPC (source: EP US)
H01H 3/001 (2013.01 - EP US); H01H 36/0073 (2013.01 - US); H01H 71/26 (2013.01 - EP US); H01H 50/546 (2013.01 - EP US)
Citation (search report)
See references of WO 2013091746A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102011122439 A1 20130627; CN 104040670 A 20140910; EP 2795652 A1 20141029; JP 2015506532 A 20150302; US 2014347150 A1 20141127; US 9111705 B2 20150818; WO 2013091746 A1 20130627
DOCDB simple family (application)
DE 102011122439 A 20111224; CN 201280064220 A 20121006; EP 12778617 A 20121006; EP 2012004196 W 20121006; JP 2014547729 A 20121006; US 201214368197 A 20121006