Electric leakageproof socket

Electric leakageproof socket

  • CN 2,419,704 Y
  • Filed: 05/19/2000
  • Issued: 02/14/2001
  • Est. Priority Date: 05/19/2000
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of earth leakage protective socket comprises top cover, middle supporting plate and bottom three parts, and top cover is provided with power output socket, leakage tests button and reset key button, it is characterized in that:

  • One metal mounting panel is installed between described top cover and middle supporting plate, and the metal mounting panel is provided with grounding contact, and corresponding with the earth jack of described top cover power output socket;

    Also be provided with an earthing screw on the described metal mounting panel;

    Both sides are placed with the pair of metal conductor in the supporting plate in the middle of described, and an electrical contact is all arranged on each metallic conductor;

    Between described middle supporting plate and described bottom, put a circuit board is arranged;

    Described circuit board is provided with differential differentiating transformer, coil and parcel iron core, reset key guidance set in coil;

    There is a central perforation upper end of described reset key guidance set, and there is an opening bottom;

    A pair of movably elastic sheet metal is arranged on bottom end opening, an electrical contact is all arranged on each elastic sheet metal, and corresponding with the electrical contact of described metallic conductor;

    Vertically run through described metal mounting panel, central perforation and bottom opening in described reset key guidance set inside one guiding lock is arranged;

    The bottom of guiding lock is a cone, near the bottom one lock slots is arranged, and top is with a spring, and embeds in the described reset key button;

    Also have a lock buckling part on described reset key guidance set bottom end opening, described lock buckling part be " " type, and there is a medium pore centre of lock buckling part, and storing has a spring between the sidewall of described reset key guidance set and lock buckling part.

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