Overload protector for motor

Overload protector for motor

CN
  • CN 2,862,462 Y
  • Filed: 09/15/2005
  • Issued: 01/24/2007
  • Est. Priority Date: 10/12/2004
  • Status: Active Grant
First Claim
Patent Images

1. a motor overload protector has housing, and this housing is made of pedestal and cover cap, is formed with one and is the depression of elongated shape substantially in pedestal, and this depression is limited by the sidewall of pedestal, and depression has the first relative end and second end,First terminals are installed in a relative place, end, and first terminals have flat contact part mounting portion basically, and it is disposed in the depression, and first terminals extend through an opening in the housing wall;

  • Fixing contact, be installed on the mounting portion of first terminals, elongated movable contact arm has first end and second end, second terminals are installed on the pedestal, arranged a movable contact arm mounting platform of conduction at the second end place of depression, described platform keeps being electrically connected with second terminals, second end of movable contact arm is electrically connected with described platform, on first end of movable contact arm a movable contact has been installed, described movable contact is configured to removable and engages with fixed contact therefor or throw off with fixed contact therefor;

    The thermostat metal element is disposed in the depression, and is configured to and can movable contact arm is moved, and throws off thereby movable contact is moved with fixed contact therefor;

    Pedestal is formed with terminals at the first end place near depression and admits flange, and a current-carrying part is received in these terminals and admits on the flange, and current-carrying part keeps being electrically connected with second terminals;

    Cover cap is received within on the pedestal, it is characterized in that;

    the sidewall on the cover cap has isolated wall part, these wall parts are received within on first terminals, tightly near fixed contact therefor and movable contact, constituted the screen of wall more than first retaining, propagate from contact with restriction electric arc, the sidewall of cover cap also has some other isolated wall parts, these wall parts extend along the periphery of pedestal, and be positioned at the first end place of depression, admit flange near terminals, these wall parts have formed the screen of wall more than second retaining, outwards propagate from contact with restriction electric arc.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×