Improved temperature control equipment of electric water heater

Abstract

The invention relates to an improved temperature control device for an electric water heater, which includes a steam temperature controller connected with an electric connector and composed of a touch switch and a heat-sensitive bimetallic sheet. The steam temperature controller is installed on the inner wall of the container mouth, A switch-type magnetic latching relay is also provided between the steam thermostat and the electrical connector, and the coil in the magnetic latching relay is connected in series with the normally open touch switch; the magnetic latching relay includes: a moving contact assembly, a static contact assembly and Magnetic circuit components; moving contact components mainly include suction plates, moving contacts and extension springs; static contact components include static contacts and metal inserts; magnetic circuit components include coils, iron cores and permanent magnets embedded in the inner cores of the iron cores. Compared with the existing technology, it has the advantages of simple structure, low cost, and convenient operation, and when installed on an electric kettle, it can avoid many disadvantages caused by water vapor being introduced into the bottom of the container, ensuring that the temperature control device is sensitive, safe, and reliable. Features such as dripping water.

Description

technical field [0001] The invention relates to a temperature control device for an electric water heater. Background technique [0002] At present, the structure of the temperature control element used to control water heating includes a body, a movable contact, an electrical connector, a temperature-sensitive bimetal, and a push rod. When in use, the temperature-sensitive bimetal sheet is pasted on the heating surface or the bottom of the container. When the water in the container is boiled dry, since the push rod is clamped between the temperature-sensitive bimetal and the movable contact piece, the temperature-sensitive bimetal will be warped and the movable contact piece will be opened to make it connect with the electrical connector. Separate, cut off the power supply and stop heating to achieve the purpose of temperature control. Its disadvantage is that the temperature-sensitive bimetal sheet will automatically restore its action when the tempe...

AI Technical Summary

Problems solved by technology

However, the structure is complex, the assembly is cumbersome, and the cost is high

For the steam temperature control element applied to the kettle, since the steam temperature-sensing bimetal sheet is installed on the side wall of the bottom of the container, the steam is introduced into the temperature-sensing contact through the conduction tube, which is easy to cause water leakage and is unsafe; if If the container cover is not in place, the water vapor cannot be introduced into the temperature-sensing contact in time, which will affect the sensitivity of the temperature-sensing, and in severe cases, the thermostat will fail

[0003] The disadvantage of installing the above-mentioned temperature control element in the electric kettle is that the steam thermostat that controls the disconnection of the heater is often installed at the bottom of the container. If the container is not tightly closed, or the cover is not closed, the steam will leak and the steam will not be released in time. It is sent to the thermostat, which affects the working performance of the thermostat. Even if the water in the container boils, the thermostat cannot cut off the heating part, so the work is unreliable; and there is water formed by steam at the bottom of the container. inconvenient

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