| 摘要 |
An ignition coil, in particular for an internal combustion engine of a motor vehicle, has an inner magnet core which is concentrically enclosed by a primary coil and a secondary coil. The inner magnet coil is made up of sheet-metal strips stacked on top of each other, the sheet-metal strips forming a substantially rectangular or square cross-section surface of the inner magnet core. At least the lower and the upper sheet-metal strips, delimiting the inner magnet core, have, at least in partial areas, a reduced width viewed in the longitudinal direction compared to the other sheet-metal strips of the inner magnet core. This makes a primary bobbin and a secondary bobbin having an enlarged corner radius and a more uniform winding density of the primary coil and the secondary coil possible.
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