EP 0603663 B1 19961106 - Thermal and magnetic tripping mechanism
Title (en)
Thermal and magnetic tripping mechanism
Title (de)
Thermischer und elektromagnetischer Auslöser
Title (fr)
Déclencheur magnétothermique
Publication
Application
Priority
DE 4242516 A 19921216
Abstract (en)
[origin: EP0603663A1] A thermal and electromagnetic tripping mechanism has a magnet core (25) and a magnet armature (26), a coil (23) and a magnet yoke (29) surrounding the coil. A supporting member (30, 31) for a bimetallic element (40) is arranged at the end face in front of the magnet yoke (29) and joined thereto. The bimetallic element heats up in the event of an overcurrent (excess current) and is moved in the process from a first stable position into a second stable position and back, thereby actuating the magnet armature (26) to release a latching mechanism. The bimetallic element (40) is fixed between two arms (30, 31) which form the supporting member. It is expedient to construct the bimetallic element as a bimetallic snap-action strip (40). The arms (30, 31; 46, 47; 52, 53), which consist of a material which is an effective thermal conductor, are mounted on the magnet yoke (29) so as to conduct heat effectively. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 71/16 (2006.01); H01H 71/40 (2006.01)
CPC (source: EP)
H01H 71/402 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR IT LI
DOCDB simple family (publication)
EP 0603663 A1 19940629; EP 0603663 B1 19961106; AT E145088 T1 19961115; DE 4242516 A1 19940623; DE 59304417 D1 19961212; ES 2096188 T3 19970301
DOCDB simple family (application)
EP 93119852 A 19931209; AT 93119852 T 19931209; DE 4242516 A 19921216; DE 59304417 T 19931209; ES 93119852 T 19931209