Patent ID: 6097274
Filing Date: 2000-08-01
Classification: H01H

Abstract:
A switch for conducting an electrical current, comprisinga first and at least a second external terminal; anda temperature-dependent switching mechanism for making an electrically conductive connection between said two external terminals as a function of the temperature of said switching mechanism,said switching mechanism including a switching member and a spring element permanently connected electrically and mechanically in series with said switching member, said switching member changing its geometrical shape between a closed position and an open position as a function of temperature;in said closed position of said switching member said current flowing from said first external terminal via said spring element and said switching element to said second external terminal,said spring element having a largely temperature-independent elastic or displacing force, andsaid switching member having a temperature-dependent elastic or displacing force which in said switching mechanism's creeping phase is greater than said elastic or displacing force of said spring element, such that deformation of the switching member during its creeping phase is compensated for by deformation of the spring element.