| 摘要 |
The invention provides a power supply expansion plate being free of short circuit in the case of water seepage. The power supply expansion plate comprises an upper shell body, a lower shell body and jack seats. The upper shell body is provided with at least a set of jack seat unit which is in injection moulding integration with the upper shell body. The lower shell body is provided with a connection seat which is in cooperation with an upper shell body jack seat. A connection base groove is provided with an electrode conducting strip which is electrically connected with an external lead. A jack seat lower end face and a connection seat upper end face clamp an elastic contact piece closely. Space is provided between the elastic contact piece and the electrode conducting strip. A jack seat jack sidewall close to an elastic contact piece upper end face is provided with a scupper. The scupper is led out through a flexible pipe to connect with a scupper of an upper shell sidewall. A jack top sidewall is provided with a projection piece. A junction of the upper shell body and the lower shell body is provided with a seal washer. The invention has the characteristics of simple structure, low manufacture cost, anti-creep, anti-seepage and good safety performance. |
