Nippondenso Co., Ltd.

Denso Corporation

Katsumi Nakazawa

Masami Kojima

Akimitsu Sugiura

Kazutoyo Oosuka

Keisuke Kawano

Yoshitaka Satou

Masato Ichikawa

Mamoru Urushizaki

There is provided a method for connecting an insulator coated wire with a conductive member while keeping the electrical resistance low and enough joint strength at the joint section therebetween without removing the coating film of the insulator coated wire beforehand. The conductive member has upper and lower pieces which pinch the insulator coated wire, and a gap between the upper and lower pieces varies at different locations. The wire and the conductive member have a good electrical connection at a region of the joint section where the gap between the upper and lower pieces is narrow. In addition, the connection strength of the wire and the conductive member can be enhanced at a region of the joint section where the gap between the upper and lower pieces is wide.

Method for connecting insulator coated wire

An electromagnetic coil which may be employed as an ignition coil for an internal combustion engine is disclosed. The electromagnetic coil includes a lower voltage winding portion and a higher voltage winding portion. The lower voltage winding portion is wound around a spool and includes a plurality of winding layers overlapped with each other and inclined at a given angle to the length of the spool. Each of the winding layers includes a collection of turns made up of a leading portion of wire. The higher voltage winding portion is wound around the spool adjacent the lower voltage winding portion and includes a plurality of winding layers overlapped with each other and inclined at a given angle to the length of the spool. Each of the winding layers includes a collection of turns made up of a trailing portion of the wire.

Slant winding electromagnetic coil and ignition coil for internal combustion engine using same

Slant winding electromagnetic coil and ignition coil for internal

Growing community of inventors

Kariya, Japan

Katsumi Nakazawa