EP 3370244 B1 20190710 - ELECTROMAGNETIC OPERATION DEVICE AND ELECTROMAGNETIC OPERATION-TYPE SWITCHING APPARATUS
Title (en)
ELECTROMAGNETIC OPERATION DEVICE AND ELECTROMAGNETIC OPERATION-TYPE SWITCHING APPARATUS
Title (de)
ELEKTROMAGNETISCH BETRIEBENE VORRICHTUNG UND ELEKTROMAGNETISCH BETRIEBENE SCHALTVORRICHTUNG
Title (fr)
DISPOSITIF DE FONCTIONNEMENT ÉLECTROMAGNÉTIQUE ET APPAREIL DE COMMUTATION DE TYPE À FONCTIONNEMENT ÉLECTROMAGNÉTIQUE
Publication
Application
Priority
JP 2017040225 A 20170303
Abstract (en)
[origin: EP3370244A1] Excitation current of an electromagnet coil is changed in response to a change in ambient temperature and, even if a sensor that measures the ambient temperature fails, turn-on operation can be normally realized (completed). An electromagnetic operation device of the present invention includes an electromagnet coil for forming an electromagnet; a capacitor accumulating energy for exciting the electromagnet coil; and a control circuit for causing the electromagnet coil and the capacitor to be electrically connected according to a turn-on command or a turn-off command to a switching device; wherein the control circuit includes a limiting resistor at the time of turn-on operation, and a short-circuiting mechanism that is provided in parallel with the limiting resistor at the time of turn-on operation and short-circuits the limiting resistor at the time of turn-on operation by using a normally-closed contact point that is normally "closed" and is "opened" when a signal is inputted.
IPC 8 full level
H01H 47/22 (2006.01); H01H 47/26 (2006.01); H01H 11/00 (2006.01)
CPC (source: CN EP)
H01H 3/28 (2013.01 - CN); H01H 47/22 (2013.01 - EP); H01H 47/26 (2013.01 - EP); H01H 71/32 (2013.01 - CN); H01H 71/68 (2013.01 - CN); H01H 2011/0068 (2013.01 - EP)
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)
EP 3370244 A1 20180905; EP 3370244 B1 20190710; CN 108538685 A 20180914; CN 108538685 B 20190813; JP 2018147642 A 20180920
DOCDB simple family (application)
EP 18154510 A 20180131; CN 201810145302 A 20180212; JP 2017040225 A 20170303