Temperature-dependent switch

Temperature-dependent switch for opening and closing an electric circuit, comprising;

• an electrically conductive housing member having an underside;
• an electrically conductive cover member for closing said housing member;
• an insulating disk disposed between said housing member and said cover member for electrically isolating the housing member from the cover member;
• a switching device comprising an electrically conductive spring washer and a bimetallic part disposed in the housing member, the electrically conductive spring washer acting against the bimetallic part depending on the temperature of the bimetallic part, whereby the spring washer rests on the housing member and has a contact part welded to the spring washer for making contact with the cover member depending on the temperature of the bimetallic part, thus creating an electrical contact between the housing member and cover member,
• whereby said electric circuit is to be connected on the one hand to the cover member and on the other hand to the housing member.

Temperature-dependent switch for opening and closing an electric circuit, comprising:

• an electrically conductive housing member having an underside and being provided with an external collar means inset from said underside;
• a terminal lug welded with its first end to the collar means;
• an electrically conductive cover member for closing said housing member;
• an insulating disk disposed between said housing member and said cover member for electrically isolating the housing member from the cover member;
• a switching device comprising a bimetallic part and being provided in the housing member, which switching device makes or breaks an electrical contact between said housing member and said cover member in dependence of the temperature of said bimetallic part,
• whereby said electric circuit is to be connected on the one hand to the cover member and on the other hand to a second end of said terminal lug.