A temperature controller for an electric iron

Abstract

A thermostat for an electric iron, comprising an upper safety plate, a lower safety plate, a moving contact piece, a static contact piece, a bimetallic piece, and an over-temperature protection ejector rod; The lower end of the rod is supported and fixed in the accommodating groove by an integrally formed inverted hat-shaped receiving part with a fixed melting point. The inverted hat-shaped receiving part includes a recessed hole in the center for the insertion of the over-temperature protection ejector rod, and is connected to the groove. The upper outer edge of the hole and the brim part extending to the outer periphery, the height of the slot hole is less than the depth of the accommodating groove, the brim of the brim is mounted on the upper end surface of the top edge of the accommodating groove on the heating base plate, and the slot hole is inserted into the accommodating groove. The invention avoids the restrictions on the height of the over-temperature protection ejector rod and many other restrictions imposed by the accommodating groove of the heating soleplate of the electric iron, and is more in line with the actual situation that the heating soleplate of the electric iron is produced separately from the thermostat parts.

Description

technical field [0001] The invention relates to a thermosensitive switch device, in particular to an electric iron thermostat with a safety device. Background technique [0002] At present, general thermostats, especially thermostats used in household electrical appliances such as electric irons, all have safety devices for safety considerations. The most common one is the thermostat shown in US Patent No. US4899124, which includes an insulation system, a Z-shaped heat transfer sheet, a contact switch, a safety switch and a spiral thermostat. The insulating system includes a connecting column, an insulating seat and several ceramic rings, the ceramic rings are connected to the insulating column, and the insulating seat is provided with through holes. One side of the heat transfer sheet is connected to the connecting column, and the other side is connected to the insulating seat, wherein the accommodating through hole is arranged on the other side of the heat transfer sheet ...

AI Technical Summary

Problems solved by technology

In the above technical solution, during assembly, the meltable body needs to be knocked into the accommodating cavity with a tool, and then supported above it by the control rod, the middle meltable body will experience unavoidable wear, and the accuracy and stability of the product cannot be guaranteed. , and there are also disadvantages of complex process and high cost

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