| 摘要 |
<p>PURPOSE:To reduce the number of parts and to simplify a structure by providing both of the power supply function from a battery and function of a shielding electrode to a leaf spring for a negative battery. CONSTITUTION:A leaf spring 9 for a positive battery is connected to the positive pole of a printed wiring board 2 at the lower end thereof and holds the electrical contact with the positive pole of a battery 3 by its upward energizing force. The connection of the negative pole of the battery 3 and the negative pole of a printed wiring board 2 is achieved by an upwardly curved leaf spring 10 for a negative battery and the curved part 10b thereof is arranged so as to raise shielding metal plate 4 from below by the back thereof and the electrical contact with the shielding metal plate 4 is held by the energizing force thereof. The continuity between the shielding metal plate 4 and a shielding metal plate 5 is achieved by the leaf spring 11 curved into an almost S-shape for the negative battery. This leaf spring 11 for the negative battery is fixed to the negative pole of the printed wiring board 2 at the upper end thereof and holds the electric contact with the shielding metal plate 5 by its downward energizing force.</p> |
