Sumitomo Wiring Systems, Limited

The Furukawa Electric Co., Ltd.

Toyota Boshoku Kabushiki Kaisha

Furukawa Automotive Systems Inc.

Masanobu Sato

Tatsuya Sumida

Kazuhiro Aoki

Noritsugu Enomoto

Takenobu Yabu

Naobumi Kuboki

Shigeki Motomura

Takehide Ikeda

Yoshisada Sano

Kenichi Shibata

The present invention has an object of providing a connection structure capable of easily connecting an LED component to a flat cable. An LED unitincludes an upper casea pierce terminala lower caseand an intermediate terminalAn LED chipis pressed to the pierce terminalby a convexed springto electrically connect the LED chipto the flat cableConductorsincluded in the flat cableare formed of phosphor bronze formed of tin (Sn), phosphorus (P), copper (Cu) and unavoidable impurities and having a tensile strength of 480 to 550 MPa, whereas a pierce plateof the pierce terminalpiercing through the conductoris formed of a copper alloy, which is a high strength conductive member having a higher strength than that of the conductorand having conductivity.

Connection structure connecting an LED component

A circuit board assembly containing two pluralities of busbars or wires arranged in a lattice configuration, there being electrical continuity at each of the intersecting points. Slits are provided on each of the busbars which engage each other to complete the lattice. In the case of wires, they are bonded to each other. The conductive member thus formed may be sandwiched between two insulative films and is placed on an insulative plate which, in turn, is enclosed by an electrical connection box. The configuration provides substantial advantages in economy of production, simplified equipment required, and ease of altering the circuitry.

Lattice-shaped circuit board

Growing community of inventors

Toyota, Japan

Masanobu Sato