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US 7,009,483 B2Granted
Ignition coil device and method of manufacturing the same
AssigneeDenso Corporation
InventorsShouichi Takeyama, Kazuhide Kawai, Masahiko Aoyama, Hideyuki Kato
Life of this patent
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Abstract
An ignition coil device has a secondary spool, a secondary coil wound around the secondary spool, an insulating resin material that is filled into spaces between the secondary windings, a primary spool, a primary coil wound around the primary spool, a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil, and a resin insulting material for connector that is filled into the connector. The base material of the coil insulating resin material is the same as or different from the base material of the connector insulating resin material.
Claims26
An ignition coil device comprising:
- a cylindrical secondary spool;
- a secondary coil wound around an outer peripheral surface of the secondary spool;
- a coil insulating resin material that is filled into spaces between secondary windings of the secondary coil;
- a primary spool arranged on an outer peripheral side of secondary coil;
- a primary coil wound around an outer peripheral surface of the primary spool;
- a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil;
- and
- a resin insulting material for connector that is filled into the connector,
- wherein the coil insulating resin material has a base material which is the same as or different from a base material of the connector insulating resin material, and
- wherein the coil insulating resin material is separately arranged from the connector insulating resin material.
7 more elements
An ignition coil device comprising:
- a cylindrical secondary spool;
- a secondary coil wound around an outer peripheral surface of the secondary spool;
- a coil insulating resin material that is filled into spaces between secondary windings of the secondary coil;
- a primary spool arranged on an outer peripheral side of secondary coil;
- a primary coil wound around an outer peripheral surface of the primary spool;
- a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil;
- and
- a resin insulting material for connector that is filled into the connector,
- wherein the coil insulating resin material has a base material which is the same as or different from a base material of the connector insulating resin material, and
- wherein the connector insulating resin material has the percentage of content of voids higher than the percentage of content of voids of the coil insulating resin material.
7 more elements
An ignition coil device comprising:
- a cylindrical secondary spool;
- a secondary coil wound around an outer peripheral surface of the secondary spool;
- a coil insulating resin material that is filled into spaces between secondary windings of the secondary coil;
- a primary spool arranged on an outer peripheral side of secondary coil;
- a primary coil wound around an outer peripheral surface of the primary spool;
- a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil;
- and
- a resin insulting material for connector that is filled into the connector,
- wherein the coil insulating resin material has a base material which is the same as or different from a base material of the connector insulating resin material, and
- wherein a coefficient of linear expansion of the connector insulating resin material is smaller than a coefficient of linear expansion of the coil insulating resin material.
7 more elements
An ignition coil device comprising:
- a cylindrical secondary spool;
- a secondary coil wound around an outer peripheral surface of the secondary spool;
- a coil insulating resin material that is filled into spaces between secondary windings of the secondary coil;
- a primary spool arranged on an outer peripheral side of secondary coil;
- a primary coil wound around an outer peripheral surface of the primary spool;
- a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil;
- and
- a resin insulting material for connector that is filled into the connector,
- wherein the coil insulating resin material has a base material which is the same as or different from a base material of the connector insulating resin material, and
- wherein a coefficient of linear expansion of the connector insulating resin material is not less than 11 ppm/° C. and less than 40 ppm/° C.
7 more elements
An ignition coil device comprising:
- a cylindrical secondary spool;
- a secondary coil wound around an outer peripheral surface of the secondary spool;
- a coil insulating resin material that is filled into spaces between secondary windings of the secondary coil;
- a primary spool arranged on an outer peripheral side of secondary coil;
- a primary coil wound around an outer peripheral surface of the primary spool;
- a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil;
- and
- a resin insulting material for connector that is filled into the connector,
- wherein the coil insulating resin material has a base material which is the same as or different from a base material of the connector insulating resin material, and
- wherein Young's modulus of the connector insulating resin material is smaller than Young's modulus of the coil insulating resin material.
7 more elements
An ignition coil device comprising:
- a cylindrical secondary spool;
- a secondary coil wound around an outer peripheral surface of the secondary spool;
- a coil insulating resin material that is filled into spaces between secondary windings of the secondary coil;
- a primary spool arranged on an outer peripheral side of secondary coil;
- a primary coil wound around an outer peripheral surface of the primary spool;
- a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil;
- and
- a resin insulting material for connector that is filled into the connector,
- wherein the coil insulating resin material has a base material which is the same as or different from a base material of the connector insulating resin material, and
- wherein Young's modulus of the connector insulating resin material is less than 8200 MPa.
7 more elements
An ignition coil device comprising:
- a cylindrical secondary spool;
- a secondary coil wound around an outer peripheral surface of the secondary spool;
- a coil insulating resin material that is filled into spaces between secondary windings of the secondary coil;
- a primary spool arranged on an outer peripheral side of secondary coil;
- a primary coil wound around an outer peripheral surface of the primary spool;
- a connector that is arranged on one end side in an axial direction of these parts and has a connector terminal electrically connected to the primary coil and the secondary coil;
- and
- a resin insulting material for connector that is filled into the connector,
- wherein the coil insulating resin material has a base material which is different from a base material of the connector insulating resin material.
6 more elements
Dependencies are inferred from the claim text.