Electric water heater and drainage detection method thereof

Abstract

The invention discloses an electric water heater. The electric water heater comprises a liner, a drainage component and a control unit. The liner is used for storing water. The drainage component comprises a drainage tube, a flow detection unit and a water discharge valve. The drainage tube is communicated with the liner, the water discharge valve is used for controlling the connection and disconnection of the drainage tube, the flow detection unit is used for detecting the instantaneous water flow in the drainage tube, the control unit is connected with the flow detection unit and is used for obtaining the total water flow of the flow detection unit according to the instantaneous water flow in the drainage tube, which is detected by the detection unit, and the control units also determines whether the drainage process of the electric water heater is over according to the total water flow and the instantaneous water flow. By means of the electric water heater, users can know whether drainage process of the electric water heater is over timely, and the problems of waiting of users during drainage, forgetting of closing the water discharge valve after drainage and the like are solved. The invention further discloses a drainage detection method of the electric water heater.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to an electric water heater and a sewage discharge detection method of the electric water heater. Background technique [0002] Usually, the user opens the drain valve to allow the electric water heater to start blowing, and closes the drain valve after the blowing process is finished. However, since the user cannot judge when the sewage discharge process ends, there are problems such as the user waiting during the sewage discharge process and the user forgetting to close the drain valve after the sewage discharge process is completed. Contents of the invention [0003] The object of the present invention is to solve at least one of the above-mentioned technical drawbacks. [0004] Therefore, an object of the present invention is to provide an electric water heater, which enables the user to know in time whether the sewage discharge process is over, and solves the pr...

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Problems solved by technology

[0004] Therefore, an object of the present invention is to propose an electric water heater, which can enable the user to know in time whether the sewage discharge process is over, and solve the problems of the user waiting during the sewage discharge process and the user forgetting to close the drain valve after the sewage discharge process is over.

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