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US 11,380,479 B2Granted
High voltage ignition coil with improved insulating characteristics
OwnerThomas C. Marrs, Donald Recupidoinventors
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Abstract
An ignition coil has a ferromagnetic core with a primary coil surrounding a first portion of the ferromagnetic core and a secondary coil surrounding the second portion of the ferromagnetic core. The secondary coil is wrapped around a bobbin. The bobbin has an interior receiving the second portion of the ferromagnetic core. A form is interposed between the secondary coil and the second portion of the ferromagnetic core. The form extends longitudinally along the second portion of the ferromagnetic core. The form is of a non-ferrous metal material.
Claims14
An ignition coil comprising:
- a ferromagnetic core;
- a primary coil surrounding a first portion of said ferromagnetic core:
- a secondary coil surrounding a second portion of said ferromagnetic core, said secondary coil being wrapped around a bobbin, said bobbin having an interior that receives the second portion of said ferromagnetic core therein;
- and
- a form interposed between said secondary coil and the second portion of said ferromagnetic core, said form extending longitudinally along the second portion of said ferromagnetic core, said form being of a non-ferrous metal, said form being of a generally tubular shape, said tubular shape having a split extending longitudinally therealong so as to interrupt a circularity of said tubular shape.
2 more elements
An ignition coil comprising;
- a ferromagnetic core;
- a primary coil surrounding a first portion of said ferromagnetic core;
- a secondary coil surrounding a second portion of said ferromagnetic core, said secondary coil being wrapped around a bobbin, said bobbin having an interior that receives the second portion of said ferromagnetic core therein;
- a form interposed between said secondary coil and the second portion of said ferromagnetic core, said form extending longitudinally along the second portion of said ferromagnetic core, said form being of a non-ferrous metal;
- and
- a frame affixed to an exterior of the second portion of said ferromagnetic core, said frame being of a non-metallic material.
3 more elements
An ignition coil comprising;
- a ferromagnetic core having a generally rectangular configuration;
- a primary coil extending over one side of said ferromagnetic core;
- a bobbin positioned over an opposite side of said ferromagnetic core, said bobbin having a plurality of bays therein, said bobbin having inner wall adjacent to the opposite side of said ferromagnetic core;
- a second coil received in said plurality of bays of said bobbin;
- and
- a form interposed between said secondary coil and the opposite side of said ferromagnetic core, said form being of a non-ferrous metallic material, said form being of a generally tubular shape, said tubular shape having a split extending longitudinally therealong so as to interrupt a circularity of said tubular shape.
3 more elements
Dependencies are inferred from the claim text.