Water heater and control method thereof

Abstract

The invention discloses a water heater and a control method thereof and relates to the technical field of hot water engineering. The water heater comprises an inner container, an electric heating element arranged in the inner container, anode devices arranged in the inner container in the mode of insulation relative to the inner container, and a control unit. The anode devices at least comprise the first anode device and the second anode device. The control unit can control the electric heating element to work and comprises a sampling module and an MCU module, wherein the sampling module is electrically connected with the first anode device and the second anode device and used for collecting electric signals between the first anode device and the second anode device, the MCU module is electrically connected with the sampling module and used for receiving the electric signals for judgment, the control unit controls the electric heating element to stop working and / or gives alarm when the electric signals meet preset conditions, and thus it can be effectively avoided that the water heater is in a dry burning state.

Description

technical field [0001] The invention relates to the technical field of hot water engineering, in particular to a water heater and a control method thereof. Background technique [0002] In the water heater, in order to prevent the electric heating element in the water heater from being damaged due to dry heating, a device is usually installed to detect the water level in the inner tank of the water heater, so that the water heater can judge the water level in the inner tank Whether it meets the requirements, and then controls whether to continue heating the water in the inner tank. [0003] Chinese patent CN201401928Y discloses a water heater, which includes an inner tank, a heating tube, and a flange for fixing the heating tube on the inner tank, and also includes: a water level electrode and a reference electrode fixed on the water heater; used to control the heating tube The processing unit is energized or de-energized, and the water level electrode and the reference ele...

AI Technical Summary

Problems solved by technology

In the above-mentioned water heater, two parts, the water level electrode and the reference electrode, which are specially used to detect the water level, need to be installed to realize the function of water level detection, which increases the number of parts in the entire water heater. In the case of realizing the above functions, the structure of the water heater is not simple enough.

Images