Ignition coil, in particular for an internal combustion engine of a motor vehicle
OwnerAlwin Stegmaierinventor
Life of this patent
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Abstract
An ignition coil, in particular for an internal combustion engine of a motor vehicle, has an inner magnet core, which is concentrically surrounded by a primary coil and a secondary coil. The inner magnet core acts together with an outer C-shaped magnet core. To minimize the size of the ignition coil, a provision is made in particular to adapt the height of the outer magnet core to the height of the secondary coil. It is furthermore provided to develop the outer magnet core from multiple sheet metal elements, which may be manufactured by a punching/bending process. This makes it possible to achieve a particularly cost-effective manufacture.
Claims10
1-8. (canceled)
An ignition coil for an internal combustion engine of a motor vehicle, comprising:
- a primary coil;
- a secondary coil;
- an inner magnet core, which is concentrically surrounded by the primary coil and the secondary coil;
- an outer C-shaped magnet core, end regions of shanks of which, which shanks stick out from a base segment, are situated in magnetic operative connection with ends of the inner magnet core;
- and
- a housing for accommodating components, which is filled with an insulating compound that fills interstices between the components,
- wherein a cross-sectional area of the outer magnet core corresponds at least substantially to a cross-sectional area of the inner magnet core and an extension of the outer magnet core with respect to a longitudinal axis of the ignition coil is greater than an extension of the inner magnet core.
Dependencies are inferred from the claim text.