Patent ID: 7704094

Claim:
A connection structure, comprising: a first case for holding an LED component; a connection terminal for electrically connecting the LED component to an electric cable; a second case located opposite the first case with respect to the electric cable and fit with the first case for holding and attaching the electric cable between the second case and the first case; and a terminal member for causing the first case to hold the LED component and connecting the LED component to the connection terminal wherein the terminal member includes at least one pair of convexed springs, one of the convexed springs is engaged with the first case, the other convexed spring presses the LED component to the connection terminal, the electric cable is formed of a flat cable including a plurality of planar conductors located with a predetermined distance provided therebetween in a width direction and a covering member for integrally covering the plurality of planar conductors to provide a planar form, the connection terminal includes a piercing connection part piercing through, and connected to, the planar conductors, and the planar conductors are 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, and the piercing connection part is formed of a high strength conductive member having a higher strength than that of the planar conductors and having conductivity.