EP 0026695 B1 19831130 - ELECTROMAGNET WITH MOBILE EQUIPMENT HAVING A PERMANENT MAGNET, PARTICULARLY FOR A CONTACTOR
Title (en)
ELECTROMAGNET WITH MOBILE EQUIPMENT HAVING A PERMANENT MAGNET, PARTICULARLY FOR A CONTACTOR
Publication
Application
Priority
FR 7924147 A 19790928
Abstract (en)
[origin: ES8105887A1] A moving system constituted by a permanent magnet and pole-pieces is accurately guided in axial translational motion within the coil unit of an electromagnet and enclosed within a coil form member, the axis of magnetization being perpendicular to the axis of the coil unit. Air-gap zones are located at both ends of the coil unit and a stationary yoke surrounds the two ends of the coil. Flat portions of the yoke which are parallel to the axis of magnetization each penetrate respectively into one air-gap zone so as to ensure that, at least in one stable position of the moving system, a flat portion of the yoke is in contact with one of the pole-pieces while the other flat portion is in contact with the other pole-piece. Better magnetic coupling between the coil, the air-gaps and the permanent magnet as well as higher operating efficiency are achieved.
IPC 1-7
IPC 8 full level
H01F 7/13 (2006.01); H01F 7/08 (2006.01); H01F 7/16 (2006.01); H01H 51/00 (2006.01); H01H 51/22 (2006.01); H01F 7/122 (2006.01)
CPC (source: EP US)
H01F 7/08 (2013.01 - EP US); H01F 7/1615 (2013.01 - EP US); H01H 51/2209 (2013.01 - EP US); H01F 7/122 (2013.01 - EP US); H01H 51/2227 (2013.01 - EP US); H01H 2051/2218 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0026695 A1 19810408; EP 0026695 B1 19831130; AT E5498 T1 19831215; BR 8006178 A 19810407; CA 1136178 A 19821123; DE 3065779 D1 19840105; ES 495186 A0 19810601; ES 8105887 A1 19810601; FR 2466844 A1 19810410; FR 2466844 B1 19831110; IE 50795 B1 19860723; IE 802007 L 19810328; JP S5656607 A 19810518; JP S5937842 B2 19840912; SU 1039452 A3 19830830; US 4316167 A 19820216
DOCDB simple family (application)
EP 80401323 A 19800917; AT 80401323 T 19800917; BR 8006178 A 19800926; CA 360315 A 19800916; DE 3065779 T 19800917; ES 495186 A 19800919; FR 7924147 A 19790928; IE 200780 A 19800925; JP 13372580 A 19800927; SU 2983140 A 19800924; US 19050980 A 19800925