EP 2572362 B1 20140226 - ELECTROMAGNET
Title (en)
ELECTROMAGNET
Title (de)
ELEKTROMAGNET
Title (fr)
ÉLECTRO-AIMANT
Publication
Application
Priority
- DE 102010021175 A 20100521
- EP 2011001428 W 20110323
Abstract (en)
[origin: WO2011144272A1] The invention relates to an electromagnet, in particular a switching magnet, having a field winding (11) which is located on a coil former (7), and having a pole piece (23) which forms a part of the magnetic return path, wherein a pole core (17) and an axially movable magnet piston (19) are provided within the coil former (7), the pole piece (23) forms an aperture opening (25) for the magnet piston (19) on the area opposite the pole core (17), and said magnet piston (19) is borne for its movement in its guide in the pole core (17), characterized in that the pole piece (23) has a flange part (27) which at least partially engages over the coil former (7) at its axial end, and has a bush part (29) which extends axially therefrom and, within the coil former (7), forms a hollow cylinder which engages over a longitudinal section of the magnet piston (19) between the inner wall of which hollow cylinder and the circumference of the magnet piston (19) a parasitic air gap (30) is formed.
IPC 8 full level
H01F 7/08 (2006.01)
CPC (source: EP US)
H01F 7/081 (2013.01 - EP US)
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 102010021175 A1 20111124; EP 2572362 A1 20130327; EP 2572362 B1 20140226; JP 2013526780 A 20130624; JP 5792803 B2 20151014; US 2013069745 A1 20130321; US 8653921 B2 20140218; WO 2011144272 A1 20111124
DOCDB simple family (application)
DE 102010021175 A 20100521; EP 11711456 A 20110323; EP 2011001428 W 20110323; JP 2013510510 A 20110323; US 201113261484 A 20110323