Electric iron thermostat

Abstract

A temperature controller 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 over-temperature protection ejector rod is a unit with a fixed melting point and integrated A molded insulating and fusible plastic part, which includes an upper abutment part, a cylindrical lower support part, a convex ring located at the middle and lower part of the cylindrical lower support part and integrally formed with the over-temperature protection push rod, and the electric iron heats the bottom plate There is a storage tank, and the over-temperature protection ejector rod is supported on the top edge of the storage tank through a collar. Push it on the free end of the lower safety plate, and the free end of the lower safety plate is supported by the over-temperature protection ejector rod and is electrically contacted and normally closed connected with the free end of the upper safety plate. Its structure is simple, which avoids many problems such as poor cooperation between the bottom end of the over-temperature protection ejector rod and the heating base plate, and there is a large contact temperature-sensing area between the convex ring and the heating base plate, the support is more stable, and the shock resistance better.

Description

technical field [0001] The invention relates to a thermosensitive switch device, in particular to a thermostat for an electric iron. Background technique [0002] At present, general thermostats, especially thermostats used in household electrical appliances such as electric irons, have over-temperature protection devices for safety considerations. The thermostat generally includes a connecting column, a spiral temperature regulating device, a fixed piece of the temperature regulating device, several ceramic rings, an input piece, an upper safety piece, a lower safety piece, a moving contact piece, a static contact piece, an output piece, a bimetallic piece, a porcelain Rice, fusible metal block and over-temperature protection ejector rod, the fixed piece of the temperature adjustment device, several ceramic rings, input piece, upper safety piece, lower safety piece, moving contact piece, static contact piece, output piece and bimetal The plates are all installed on the con...

AI Technical Summary

Problems solved by technology

There will be unavoidable wear and tear on the middle fusible metal block, and it is difficult to guarantee the accuracy and stability of the product. Furthermore, there are also disadvantages of complex process and high cost.

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