EP 1589546 A1 20051026 - Ignition coil having improved thermal stress resistance
Title (en)
Ignition coil having improved thermal stress resistance
Title (de)
Zündspule mit verbessertem Widerstand gegen thermische Spannungen
Title (fr)
Bobine d'allumage avec résistance accrue à la fatigue thermique
Publication
Application
Priority
EP 04009540 A 20040422
Abstract (en)
The present invention relates to an ignition coil apparatus housing several ignition coils and ignition coils provided with a coating with electrical conductive, resilient material properties. An ignition coil in question includes a magnetic core of a magnetically permeable material, a high-voltage winding and a low-voltage winding in order to allow generation of a high-voltage signal for being supplied to a spark plug of an internal combustion engine. The magnetic core has at least one axis (B', C', D', D"), coaxially to which each the high-voltage winding and the low-voltage winding are arranged. The low-voltage winding is in particular arranged outwardly to the high-voltage winding .The ignition coil is provided outwardly with the aforementioned coating to avoid or at least minimize mechanical stress resulting from thermal-mechanical elongation effects and to protect against potential internal discharges. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 27/36 (2006.01); H01F 38/12 (2006.01); H01F 27/02 (2006.01)
CPC (source: EP US)
H01F 27/36 (2013.01 - EP); H01F 27/366 (2020.08 - EP US); H01F 38/12 (2013.01 - EP); H01F 27/022 (2013.01 - EP)
Citation (search report)
- [Y] US 5109209 A 19920428 - IDA YASUHIKO [JP], et al
- [Y] GB 1145450 A 19690312 - GEN ELECTRIC
- [A] US 6198373 B1 20010306 - OGAWA HIDEKI [JP], et al
- [A] US 6107790 A 20000822 - SAWAZAKI NOBUYUKI [JP], et al
- [A] JP S60192313 A 19850930 - NIPPON DENSO CO
- [A] US 2004069288 A1 20040415 - SHIMADA JUNICHI [JP], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04009540 A 20040422