EP 0403216 A2 19901219 - Electromagnetic actuator arrangement.
Title (en)
Electromagnetic actuator arrangement.
Title (de)
Elektromagnetische Betätigungsanordnung.
Title (fr)
Arrangement d'un actionneur électromagnétique.
Publication
Application
Priority
GB 8913633 A 19890614
Abstract (en)
An electromagnetic actuator arrangement comprising a switch (SW1) biased open by a biasing spring (SP) and operated by a yoke (Y1) which attracts an armature (AR1) when its winding (L1) is energised is provided with means (C1, SCR1) for instantaneously reversing the magnetising force acting on the armature when the winding (L1) is de-energised. As a result, the residual magnetism in the armature (AR1) is opposed by the reversed magnetic field from the winding (L1) and the tendency of the armature to stick to the yoke is avoided. Consequently the release time is reduced.
IPC 1-7
IPC 8 full level
H01F 7/18 (2006.01); H01H 71/24 (2006.01); H01H 83/14 (2006.01); H01H 47/02 (2006.01)
CPC (source: EP)
H01H 71/2454 (2013.01); H01H 83/144 (2013.01); H01H 47/02 (2013.01)
Designated contracting state (EPC)
BE DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0403216 A2 19901219; EP 0403216 A3 19920708; EP 0403216 B1 19940824; AU 5700190 A 19901220; AU 624960 B2 19920625; CA 2018965 A1 19901214; DE 69011757 D1 19940929; DE 69011757 T2 19950427; DK 0403216 T3 19950102; ES 2057408 T3 19941016; GB 8913633 D0 19890802; JP H0395905 A 19910422
DOCDB simple family (application)
EP 90306372 A 19900612; AU 5700190 A 19900613; CA 2018965 A 19900613; DE 69011757 T 19900612; DK 90306372 T 19900612; ES 90306372 T 19900612; GB 8913633 A 19890614; JP 15413190 A 19900614