Water heater and method for controlling ultraviolet sterilization of water heater

Abstract

The invention discloses a water heater which comprises a water inlet pipeline and a water outlet pipeline. The water inlet pipeline and / or the water outlet pipeline are / is provided with a first ultraviolet sterilization device and the water inlet pipeline or the water outlet pipeline is further provided with a water quality detection device used for detecting outflow water quality. The water heater further comprises an ultraviolet sterilization control circuit respectively and electrically connected with the first ultraviolet sterilization device and the water quality detection device. The ultraviolet sterilization control circuit is used for receiving water quality information fed back by the water quality detection device in real time or in a regular mode and according to the received water quality information, the first ultraviolet sterilization device is correspondingly controlled to generate ultraviolet rays. The invention further discloses a method for controlling ultraviolet sterilization of the water heater. Thus, the ultraviolet rays can be selectively generated according to the water quality conditions, poor-quality water for a bath is sterilized through the ultraviolet rays, damage caused by unclean water to health of the human body is avoided, in addition, the water quality is guaranteed, the service life of the ultraviolet sterilization device is prolonged, and energy is saved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a water heater and an ultraviolet ray sterilization control method for the water heater. Background technique [0002] With the improvement of living standards, people pay more and more attention to health issues. Whether household appliances have antibacterial and antibacterial functions has gradually become a standard for users to choose. At the same time, GB / T21551 household and A series of standards for antibacterial, sterilizing, and purification functions of electrical appliances for similar purposes, and whether household appliances have antibacterial and antibacterial functions have become a national standard. Therefore, home appliances with antibacterial and antibacterial functions will be chosen by more and more consumers, and will become a trend in the development of home appliances in the future. [0003] Ultraviolet light belongs to a kind of physical optics a...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing water heaters (for example, gas water heaters, instant electric water heaters, and water storage electric water heaters, etc.) are not equipped with relevant sterilization devices and do not have sterilization functions. Practice has proved that only the heating device of the water heater cannot effectively prevent Bacteria and viruses breed inside the water heater, especially when the water heater is re-used after being idle for a long time. Due to the large number of bacteria growing inside the water heater, it will cause harm to the health of the user

For very few water heaters equipped with ultraviolet sterilizing devices, since these ultraviolet sterilizing devices can only generate ultraviolet rays of a specific intensity, the irradiation intensity and time of ultraviolet rays cannot be adjusted according to the current water quality conditions, and the control method is single, so it is difficult to meet the requirements of smart homes.

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