Water heater having anode bar loss detection prompting function and control method thereof

Abstract

Provided are a water heater having an anode bar loss detection prompting function and a control method thereof. The water heater comprises an inner container arranged inside a housing, an anode bar, an electric heating tube and a control mainboard responsible for water heater control, wherein the anode bar and the electric heating tube are installed inside the inner container. The water heater further comprises a current detection circuit, wherein the current detection circuit is connected with an alarm prompting circuit and is installed outside the inner container. The control method of the water heater comprises the steps of 1S starting the control mainboard of the water heater, supplying water and electricity for the water heater and starting a water heater heating circuit, 2S detecting the loss situation of the anode bar, and 3S enabling the water heater heating circuit and the current detection circuit to be automatically powered off when the temperature of the water heater is up to predetermined temperature. The water heater can automatically detect protective current according to the actual using environments of different uses and self factors and judge the loss situation of the anode bar, and it is ensured that the anode bar conducts comprehensive protection on the electric heater and the inner container.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a water heater with an anode rod loss detection and prompt function and a control method thereof. Background technique [0002] At present, most of the inner pots of domestic water heaters on the market are enamel inner pots made of carbon steel materials. Gallbladder for further protection. [0003] Since the anode rod is installed inside the water heater, it is difficult for the user to understand the consumption of the anode rod. In addition, the water quality in the water heater installation area, the temperature set by the user, and the quality of the inner tank enamel are different, and the service life of the anode rod is also different. For areas with good water quality, the service life of the anode rod can reach 3-4 years, while for areas with poor water quality, the anode rod will be exhausted after 1-2 years of use. If the user does not replace the anode rod in t...

AI Technical Summary

Problems solved by technology

Due to the differences in the performance of the water heater itself, the way users use it, the local water quality, and the quality of the inner tank enamel, etc., the actual protection current may be higher or lower than the standard protection current value, so it will be reminded too early or too late, resulting in improper replacement timing If it is dismantled too early, it will not be used up, and replacement will cause waste. If it is dismantled too late, the inner tank will already start to corrode, and it will not be able to provide continuous protection.

In addition, the current value between the anode rod and the inner tank is very small, the current obtained by sampling and detection by the detection module is not accurate, and the error is relatively large, which is difficult to realize in actual production

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