Mechanical locking connection for electric terminals

Details Mechanical locking connection for electric terminals Mechanical locking connection for electric terminals

1999-09-08

2000-07-25

Gellner, Michael L.

Inductor devices

With outer casing or housing

Potted type

336 90, 439848, H01F 2729, H01F 2702, H01R 1122

Patent

active

060941227

ABSTRACT:
An ignition coil assembly module (40) that can be connected to and disconnected from an engine spark plug. The module elements are arranged as a succession of cylindrical layers about a central ferromagnetic core (46). From innermost to outermost, the succession is: a) a secondary bobbin (48), b) a secondary coil (58), c) a secondary encapsulant (194) encapsulating the secondary coil, d) a primary bobbin (50), e) a primary coil (56), f) an inner wall (181) of an environmental shield (42) encapsulating the primary coil, g) a ferromagnetic shell (52), and h) an outer wall (180) of the environmental shield encapsulating the shell. The primary bobbin forms a liquid container for holding secondary coil encapsulant. A terminal (100) extends through a transverse wall (71) of the primary bobbin for carrying secondary current from the secondary coil to another terminal (118) on the other side of the transverse wall that connects to a spark plug (80). The two terminals are connected together by a mechanical locking connection that keeps them together when the module is disconnected from the spark plug.

REFERENCES:
patent: 4514712 (1985-04-01), McDougal
patent: 4662706 (1987-05-01), Foley
patent: 5128646 (1992-07-01), Suzuki et al.
patent: 5507089 (1996-04-01), Dickmeyer
patent: 5590637 (1997-01-01), Motodate
patent: 5764124 (1998-09-01), Nakamichi et al.
patent: 5870012 (1999-02-01), Sakamaki et al.

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