PURPOSE: To enable a shield plate to easily and sufficiently exert its shielding effect without destroying electric parts by making the shield plate to have a spring property and a press-contact structure in which the electric parts can be connected when the electric parts are put in the structure with a pressure.

CONSTITUTION: A press-contact system is adopted to this shield plate 1. Namely, the plate 1 is provided with a press-contact section 2 which is formed of a material, such as phosphor bronze, etc., having a spring property to a diameter smaller than the external shape of the electric parts fitted to the plate 1. Therefore, when, for example, a through capacitor is fitted to the plate 1, the capacitor can be fitted to the plate 1 by simply putting the capacitor in the press-contact structure of the plate 1 with a pressure. Therefore, the possibility of the destruction of the electric parts caused by the heating or tightening of the parts can be eliminated and the parts can be surely connected to the plate 1 by utilizing the spring property. As a result, the shielding effect of this shield plate 1 can be improved.