Claims
- 1. An ignition transformer and spark plug cover assembly adapted for mounting on an internal combustion engine for application of ignition signals from an ignition circuit to a respective engine spark plug, comprising:
- connector means adapted to be electrically connected to said ignition circuit by means of low tension conductors and fixedly fastened to said engine in close proximity to said respective spark plug;
- a transformer assembly, including an ignition transformer, mechanically connected to and supported by the connector means; and
- a cover member adapted for making electrical connection with a respective spark plug, comprising a high tension conductor connected to the ignition transformer.
- 2. An ignition transformer and spark plug assembly according to claim 1, wherein said connector means comprises:
- a base member adapted to be fixedly fastened to the engine, including connector receptacles for making electrical connection thereto, and
- a connector member mounted on said base member and having respective connectors contacts mating with the base member connector receptacles.
- 3. An ignition transformer and spark plug cover assembly according to claim 2, wherein said transformer assembly comprises:
- contact means for making electrical connection between said ignition transformer and said connector contacts of said connector member.
- 4. An ignition transformer and cover assembly according to claim 3, wherein said transformer assembly comprises:
- a first bobbin having a secondary winding wound thereon and having a central bore in which a core member is disposed;
- a second bobbin molded onto said first bobbin and said secondary winding, said second bobbin having a primary winding wound thereon;
- connector pins integrally molded in said first and second bobbins for making electrical connection to said secondary and primary windings; and
- an insulating casing molded in surrounding relation to said first and second bobbins.
- 5. An ignition transformer and cover assembly according to claim 4, wherein said connector member comprises:
- a housing having upper and lower hollow cavities separated by a central section;
- plural contacts embedded in said central section and extending into said upper and lower hollow cavities;
- wherein the extensions of said contacts into said upper hollow cavity are connected to the primary and secondary windings in said transformer assembly.
- 6. An ignition transformer and cover assembly according to claim 5, wherein said base member comprises:
- an insulating housing having embedded therein plural connector receptacles, one for each of said contacts of said connector member,
- wherein one of said receptacles is adapted to be grounded to the engine.
- 7. An ignition transformer and cover assembly according to claim 1, wherein said transformer assembly comprises:
- an insulating casing surrounding said ignition transformer.
- 8. An ignition transformer and cover assembly according to claim 1, wherein said transformer assembly comprises:
- a first bobbin having a secondary winding wound thereon and having a central bore in which a core member is disposed; and
- a second bobbin surrounding said first bobbin and said secondary winding, said second bobbin having a primary winding wound thereon.
- 9. An ignition transformer and cover assembly according to claim 8, wherein said first bobbin comprises:
- plural series connected sections in which said secondary winding is wound.
- 10. A method of fabricating an ignition transformer and spark plug cover assembly adapted for mounting on an internal combustion engine for application of ignition signals from an ignition circuit to a respective engine spark plug, wherein the ignition transformer and spark plug cover assembly is formed at least of connector means adapted to be electrically connected to the ignition circuit by means of low tension conductors and fixedly fastened to said engine in close proximity to said respective spark plug, a transformer assembly mechanically connected to an supported by the connector means and including an ignition transformer and an insulating casing surrounding the ignition transformer, and a cover member adapted for making electrically connection with said respective spark plug, including a high tension conductor connected to the ignition transformer, and wherein the transformer assembly further includes a first bobbin having a secondary winding wound thereon and having a central bore in which a core member is disposed, and a second bobbin surrounding said first bobbin and said secondary winding, said second bobbin having a primary winding wound thereon, comprising the following steps:
- molding of said first bobbin;
- winding of said secondary winding onto said first bobbin;
- inserting said core into said bore;
- molding of said second bobbin onto said first bobbin;
- winding of said primary winding onto said second bobbin; and
- molding of said insulating casing in surrounding relation to said first and second bobbins.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 489,188, filed Apr. 27, 1983, now abandoned, which is a continuation-in-part of U.S. application Ser. No. 268,889 filed June 1, 1981 now U.S. Pat. No. 4,382,430, and pending U.S. application Ser. No. 383,607 filed June 1, 1982, the disclosures of which are incorporated by reference herein.
US Referenced Citations (4)
Related Publications (1)
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Date |
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383607 |
Jun 1982 |
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Continuations (1)
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Number |
Date |
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489188 |
Apr 1983 |
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Continuation in Parts (1)
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268889 |
Jun 1981 |
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