摘要:
Wirings on the low-tension side which are comprised of a terminal connected to a primary winding, terminals of an electronic component, and terminals of connectors electrically connected to external devices are formed as a unit by means of a molding and formed as an insert assembly 13, and electrical connections of the respective terminals are established by welding. An arrangement is provided such that the primary winding and the insert assembly are electrically connected by fusing, are then bent and accommodated in a case.
摘要:
An internal combustion engine ignition device comprises an ignition coil, a preliminary assembly, and a casing for accommodating and covering the ignition coil and the preliminary assembly with resin. The preliminary assembly comprises a heat sink, a control unit, and a cushion cover for covering the heat sink and control unit and having at least one first protrusion. The control unit comprises a control circuit for controlling the flow of primary current in the ignition coil, and at least one first recess for engaging with the first protrusion of the cushion cover.
摘要:
An electrical connector connecting a spark plug to an ignition coil comprising electrically insulating caps each having a cylindrical engaging surface adapted to be attached to the spark plug and the ignition coil. An electrically insulating sheath is attached and engaged with the engaging surfaces of the insulating caps at the engaging surfaces at its opposite ends so that at least one cylindrical engaging interface is defined therebetween. An electrical conductor is supported by and extended through the insulating sheath for electrically connecting the ignition coil and the high voltage terminal of the spark plug to each other. The electrical connector also comprises an electrically insulating structure, disposed in the engaging interface between the engaging surfaces of the caps and the sheath, for providing additional electrical insulation in the engaging interface. The insulating structure may be a circumferential annular ridge and groove in the engaging interface, an electrically insulating bonding agent disposed in the engaging interface, an axially extending annular wall and groove, or a circumferential annular space defined in the engaging interface between the engaging surfaces and a volume of electrically insulating bonding agent filled within the annular space.
摘要:
An ignition apparatus for an internal combustion engine can increase the degree of freedom of wiring paths of electroconductive wires as well as simplifying and miniaturizing a wiring module. Transformers (5A, 5B, 5C) are built into a casing (4) and each includes a core (6), a primary coil (8) and a secondary coil (10) arranged to surround the core for generating a high voltage in the secondary coil (10). A wiring module (20) built into the casing electrically connects the transformers and the switching module with one another. An insulating resin portion (11) fixedly attaches the transformers, the switching module and the wiring module to the casing. The wiring module (20) includes a module main body (22), which is formed by integrating a plurality of conductors (13, 14, 15) with one another through a resin, and flexible electroconductive wires (21) disposed along a surface of the module main body (22).
摘要:
An ignition coil device for an internal-combustion engine reduces the deterioration in reliability caused by heat stress. The ignition coil device is provided with: a case (5); a core (6) provided in the case (5); a primary coil (8) which is provided so that it surrounds the core (6) and which has a primary winding (13) trough which a primary current flows composed of a conductor wound around a bottomed cylindrical primary bobbin (12); a secondary coil (9) which is provided so that it surrounds the primary coil (8) and in which high voltage is generated by the interruption of the primary current; a stopper (21) which is provided at an opening (12a) of the primary bobbin (12) to close the opening (12a) of the primary bobbin (12); and an insulator (11) composed of a thermosetting resin which is provided in the case (5) to secure the primary coil (8) and the secondary coil (9) in the case (5). The stopper (21) prevents the insulator (11), which has not yet been thermally cured, from flowing between the core (6) and the primary bobbin (12) when it is charged into the case (5).
摘要:
The ignition coil includes an exciting core having a substantially I-shape, and a closed magnetic path forming core having a substantially C-shape. The ignition coil is constructed in such a manner that first contact faces are formed by a first face of the exciting core and a first face of the closed magnetic path forming core, and a permanent magnet is arranged between these first contact faces, while second contact faces are formed by a second face of the exciting core which is directed to a different direction from the aforesaid first face and a second face of the closed magnetic path forming core which is directed to a different direction from the aforesaid first face.
摘要:
An ignition coil is so constructed that a transformer which includes a center core wound with a primary coil and a secondary coil, and a side core is fixed to a case by an insulating resin, and a core cover formed of material adherable to the insulating resin and a core cover formed of material releasable from the insulating resin are provided between the side core and the secondary coil.
摘要:
An ignition coil is so constructed that a transformer which includes a center core wound with a primary coil and a secondary coil, and a side core is fixed to a case by an insulating resin, and a core cover formed of material adherable to the insulating resin and a core cover formed of material releasable from the insulating resin are provided between the side core and the secondary coil.
摘要:
The ignition coil includes an exciting core having a substantially I-shape, and a closed magnetic path forming core having a substantially C-shape. The ignition coil is constructed in such a manner that first contact faces are formed by a first face of the exciting core and a first face of the closed magnetic path forming core, and a permanent magnet is arranged between these first contact faces, while second contact faces are formed by a second face of the exciting core which is directed to a different direction from the aforesaid first face and a second face of the closed magnetic path forming core which is directed to a different direction from the aforesaid first face.
摘要:
An ignition apparatus for an internal combustion engine includes a central core, a primary coil and a secondary coil arranged outside of the central core, a magnet arranged in abutment with one end face of the central core and magnetized in a direction opposite to the direction of a magnetic flux generated by energization of the primary coil, a side core arranged outside of the first and second primary coils so as to cooperate with the central core and the magnet to form a closed magnetic circuit, and a flexible core cover arranged to cover the side core. The side core includes a first side core section and a second side core section which have their one end faces arranged in abutment with each other. The first and second side core sections have their other ends in abutment against the magnet and the other end face of the central core, respectively.