EP 2193530 A1 20100609 - ELECTRIC WINDING BODY AND TRANSFORMER HAVING FORCED COOLING
Title (en)
ELECTRIC WINDING BODY AND TRANSFORMER HAVING FORCED COOLING
Title (de)
ELEKTRISCHER WICKLUNGSKÖRPER UND TRANSFORMATOR MIT FORCIERTER KÜHLUNG
Title (fr)
CORPS D'ENROULEMENT ÉLECTRIQUE ET TRANSFORMATEUR À REFROIDISSEMENT FORCÉ
Publication
Application
Priority
EP 2007008631 W 20070928
Abstract (en)
[origin: WO2009046733A1] The invention relates to an electric winding body (1a, 1b, 1c) comprising an electrically conductive winding and an insulation surrounding the winding, wherein the surrounding insulation surrounds the entire winding and forms a mechanically stable winding body, and wherein inside the winding body at least one continuous channel having an opening in the electric winding body is arranged. By arranging an elongation element (2a, 2b, 2c) in the openings of the continuous channels, the channels are elongated beyond the dimensions of the electric winding body, thus providing for improved cooling. By attaching additional lateral elements (8a, 8b, 8c, 8d) on the outer wall of the electric winding body, the intermediate space created in this way forms a new cooling channel, which produces an additional cooling effect due to the air current created by the chimney effect.
IPC 8 full level
H01F 27/08 (2006.01); H01F 27/28 (2006.01); H01F 27/32 (2006.01)
CPC (source: EP US)
H01F 27/085 (2013.01 - EP US); H01F 27/2876 (2013.01 - EP US); H01F 27/322 (2013.01 - EP US); H01F 27/324 (2013.01 - EP US); H01F 27/327 (2013.01 - EP US)
Citation (search report)
See references of WO 2009046733A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2009046733 A1 20090416; BR PI0722111 A2 20140408; BR PI0722111 B1 20181121; CA 2700669 A1 20090416; CA 2700669 C 20160830; CN 101809686 A 20100818; CN 101809686 B 20121114; EP 2193530 A1 20100609; EP 2193530 B1 20160914; MX 2010003420 A 20100421; US 2011175696 A1 20110721; US 8274350 B2 20120925
DOCDB simple family (application)
EP 2007008631 W 20070928; BR PI0722111 A 20070928; CA 2700669 A 20070928; CN 200780100864 A 20070928; EP 07818709 A 20070928; MX 2010003420 A 20070928; US 68033710 A 20100326