Patent ID: 6984798

Claim:
A safety switch comprising: a hollow body having an opening at an upper end thereof and a lower end of the hollow body having three slots which are spaced arranged; a button pivotally installed upon the opening of the hollow body; a press-block downwards extending from a pivotal point of the button; a first power terminal installed at one of the three slots; a second power terminal installed at another of the three slots; a load terminal installed at the other slot of the three slots which is located between the first power terminal and the second power terminal; the load terminal being electrically connected to the second power terminal; an upper side of the load terminal being installed with an electric silver sheet; an elastomer being a U shape metal piece; one end of the elastomer being buckled to an upper end of the load terminal and another end thereof being buckled to the press block of the button; and a metal sheet being installed at a lower side of the button; the metal sheet being made of a compound metal having materials of different expansion coefficients; one end of the metal sheet being connected to an upper end of a power terminal; another end thereof being installed with a conductive silver sheet corresponding to the electric silver sheet of the load terminal.