Electric water heater capable of automatically measuring, controlling and preventing dry burning

Abstract

The invention provides an electric water heater capable of automatically measuring, controlling and preventing dry burning. The electric water heater comprises a water heater inner container and electric heaters, wherein the water heater inner container comprises four side walls and a bottom wall, the number of the electric heaters on the bottom wall and the number of the electric heaters on each side wall are respectively four, and the electric water heater further comprises an electric heater dry burning prevention device. If the electric heaters are not soaked in water, the electric heaters automatically stop heating so as to prevent the dry burning of the electric heaters, when the water level rises to submerge the electric heaters, the electric heaters conduct heating again, the electric water heater can control the electric heaters to conduct heating according to the water level, and the dry burning of the electric heaters is prevented.

Description

technical field [0001] The invention belongs to the field of water heaters, in particular to an electric water heater with automatic measurement and control to prevent dry heating. Background technique [0002] The heating power of the electric water heater commonly used in the family is relatively single at present, generally only has one kind of heating power, and the heating power will not change as the temperature of the water increases. Therefore, in this case, for a water heater with a relatively large heating power, once the heating is started, the temperature of the water will increase rapidly. It leads to rapid expansion of the inner tank, and multiple rapid expansions will easily lead to loosening of the combination between the inner tank and other shell materials, and will also reduce the frequency of use of the inner tank; some water heaters have low heating power, although they will heat up the water The speed is slow, thereby reducing the rapid thermal expansi...

AI Technical Summary

Problems solved by technology

[0002] At present, the heating power of electric water heaters commonly used in households is relatively single. Generally, there is only one heating power, and the heating power will not change with the increase of water temperature.

Therefore, in this case, for a water heater with a relatively large heating power, once the heating is started, the temperature of the water will increase rapidly. It leads to rapid expansion of the inner tank, and multiple rapid expansions will easily lead to loosening of the combination between the inner tank and other shell materials, and will also reduce the frequency of use of the inner tank; some water heaters have low heating power, although they will heat up the water The speed is slow, thereby reducing the rapid thermal expansion of the inner tank, but the heating speed of the overall water is slow, thus affecting the timeliness of use

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