Intelligent feedback temperature-adjusting drinking water system

Abstract

The invention discloses an intelligent feedback temperature-adjusting drinking water system which is a temperature control system combining frequency modulation and phase modulation. Four temperature-adjusting interruption control buttons are arranged, lower limit temperature values of 20 DEG C, 40 DEG C, 60 DEG C and 80 DEG C at corresponding gears are displayed when the buttons are pressed down; if a rotating coder is not used to tune to needed temperature values within five seconds, the lower limit temperature values at current gears are considered as target temperature values in a default manner; if the rotating coder is used for tuning within five seconds, temperature to which the rotating coder is tuned is considered as target temperature; when the target temperature is higher than actual water temperature by 5 DEG C, phase-modulating heating control which is efficient is performed, and when the target temperature is lower than the actual water temperature by 5 DEG C, PWM frequency-modulating heating control is performed to realize control of stepless temperature adjusting. The intelligent feedback temperature-adjusting drinking water system has the advantages of being higher in safety and reliability, more energy-saving and more convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of daily necessities, and specifically relates to an intelligent feedback temperature-regulating drinking water system suitable for direct drinking water supply in families, enterprises, institutions, service industries, hospitals, sanatoriums and other places. Background technique [0002] The water dispensers or water purifiers that currently exist in the Chinese market are divided into the following types: boiling pots, bucket water dispensers, and instant water dispensers. Among them, boiling kettles and bucket-type water dispensers have a long heating time and limited water storage capacity. If tap water is repeatedly heated, nitrite will be produced in the water, polluting the blood, causing difficulty in blood oxygen delivery and hypoxia. Long-term drinking This kind of water can easily form kidney stones in the human body. Although these two water dispensers are cheap, they have problems such as bulk...

AI Technical Summary

Problems solved by technology

Mainly to overcome the disadvantages of traditional thyristor voltage regulation and single heating

Because the electric heating tube is a linear element, although the thyristor can control the voltage level (phase modulation and temperature control), continuous heating will always cause the temperature to be too high for a water heater with a large power, so that the final temperature is out of control

However, only using the PWM pulse regulation technology (frequency modulation and temperature control) of the induction cooker IGBT for heating will make the efficiency of the instant electric water dispenser too low, and it will not be possible to add water to the expected temperature.

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