Ignition coil unit for an internal combustion engine
First Claim
Patent Images
1. An ignition coil unit comprising:
- an iron core;
an ignition coil including a primary coil disposed around said iron core and a secondary coil disposed around said iron core in an electromagnetically coupling relationship with said primary coil;
a packaged power switch circuit having a plurality of electric and electronic components, including a switching element, first, and a molded resin (G) hermetically sealing and packaging said components into a single unitary piece, said power switch circuit being electrically connected to said ignition coil for controlling an electric current flowing through said primary coil;
a second filler resin (15); and
a unitary, electrically insulating casing, said filler resin and said electrically insulating casing supporting and completely enclosing said ignition coil and said packaged power switch circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
An ignition coil unit comprising within an electrically insulating casing (31) an ignition coil (A) and a packaged power switch circuit (E). The packaged power switch circuit (E), which comprises a plurality of electric and electronic components (F) hermetically sealed within a mold resin (G) to form a single compact unitary piece, is disposed within a power switch cavity (31d) of the casing (31). An aluminum heat dissipating plate (30) may be attached at its first end (30a) to said packaged power switch circuit (E) in a thermally conductive relationship and exposed at its second end (30b) to the exterior of said casing (31).
-
Citations
12 Claims
-
1. An ignition coil unit comprising:
-
an iron core; an ignition coil including a primary coil disposed around said iron core and a secondary coil disposed around said iron core in an electromagnetically coupling relationship with said primary coil; a packaged power switch circuit having a plurality of electric and electronic components, including a switching element, first, and a molded resin (G) hermetically sealing and packaging said components into a single unitary piece, said power switch circuit being electrically connected to said ignition coil for controlling an electric current flowing through said primary coil; a second filler resin (15); and a unitary, electrically insulating casing, said filler resin and said electrically insulating casing supporting and completely enclosing said ignition coil and said packaged power switch circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification