Safety protector for electric heating container

Abstract

The invention relates to a safe protective device of electric heating container, which comprises a electric heating element formed by a electric heating ring and a heat conductive plate; a heat power device formed by a dual metallic plate and a top rod; and a electric switch formed by a movable contact point, a movable contact plate, a stable contact point and a stable contact plate. Wherein, the dual metallic plate are movably connected to one end of top rod; another end of top rod is supported to the movable contact plate; the central section of independent heat conductive device is insulated from the heat conductive plate which has at least one dual metallic plate; the independent heat conductive device has a thermal sensitive feeler heat connected to the heat conductive plate of electric heating container. The dual metallic actuator can feel the temperature via the feeler of heat conductive device; and the independent heat conductive device has tight heat contact with the heat conductive plate of heater to solve the problem of slow response speed. The invention has simple structure, fewer elements, and improved reliability and safety.

Description

Technical field [0001] The invention relates to an automatic switch device for an electric heating container, in particular to a safety protection device for electric heating containers such as an electric heating cup, an electric kettle, and a coffee pot. Background technique [0002] Existing electric heating containers with bottom heating such as electric cups, electric kettles and coffee pots generally have a safety protection device at the bottom position, whose function is to automatically cut off the electric heating when the temperature of the electric heating container increases abnormally locally or as a whole The energized circuit of the container to prevent burning of the appliance and endangering safety. Currently, there are two representative controllers. One is "Thermal Controller for Boiling Water Vessels" with the announcement number CN1143595C. Its technical solution is to install two bimetallic actuators with basically the same temperature on each other. In a p...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the technical problems existing in the above two electric heating capacitors, and proposes a new technical solution, which not only needs to solve the defect that the two pairs of metal sheets cannot compensate for each other to ensure safe use, but also solves the problem caused by the two pairs of metal sheets. The metal sheets are close to each other, because of the slow response speed in the weak heat zone of the container when local overheating occurs

Images