EP 2165070 A1 20100324 - IGNITION COIL
Title (en)
IGNITION COIL
Title (de)
HOCHSPANNUNGSANSCHLUSS FÜR EINE ZÜNDKERZE
Title (fr)
BOBINE D'ALLUMAGE
Publication
Application
Priority
- EP 2008056858 W 20080603
- DE 102007026669 A 20070608
Abstract (en)
[origin: WO2008148765A1] Known ignition coils have a high-voltage connection, a spring for electrically connecting the high-voltage connection to a spark-plug and an elastic protective jacket that surrounds the spring. The windings of the spring lie in a block against one another in a block section that faces the high-voltage connection and are interspaced in a spring section designed to contact the spark-plug. To permit the ignition coil with the elastic protective jacket to be pushed easily onto the spark-plug, said protective jacket is reinforced by the integration of two metal sleeves. However, the disadvantage of these sleeves is that they involve higher production costs and increase the diameter of the protective jacket. In addition, the sleeves reduce the flexibility of the protective jacket. In the ignition coil according to the invention, the rigidity of the protective jacket is increased without additional components, thus cutting production costs and reducing the diameter of the protective jacket. According to the invention, the end of the block section (15.1) of the spring (15), facing the spring section (15.2), is supported on at least one support shoulder (20) of the protective jacket (16).
IPC 8 full level
H01F 27/04 (2006.01); F02P 3/02 (2006.01); H01F 38/12 (2006.01); H01R 13/24 (2006.01); H01R 13/53 (2006.01); H01T 13/44 (2006.01)
CPC (source: EP)
F02P 3/02 (2013.01); H01F 38/12 (2013.01); H01R 13/2421 (2013.01); H01T 13/44 (2013.01); H01F 27/04 (2013.01); H01R 13/53 (2013.01); H01R 2201/22 (2013.01)
Citation (search report)
See references of WO 2008148765A1
Designated contracting state (EPC)
DE FR IT
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2008148765 A1 20081211; CN 102016290 A 20110413; CN 102016290 B 20130320; DE 102007026669 A1 20090115; EP 2165070 A1 20100324; EP 2165070 B1 20170301
DOCDB simple family (application)
EP 2008056858 W 20080603; CN 200880019006 A 20080603; DE 102007026669 A 20070608; EP 08760442 A 20080603