Water feed control method of humidifier and humidifier

Abstract

The invention discloses a water feed control method of a humidifier and the humidifier. The method comprises the steps of periodically recalling a water feed control procedure, and performing executing: detecting the working state of an atomizing piece, and performing switching on and switching off control on the atomizing piece; detecting the state of an electromagnetic valve, performing single opening duration control on the electromagnetic valve; and detecting a water tank, the water level of an atomizing groove and the state of the electromagnetic valve, according to state combination, performing full water control and water shortage control and performing timing water feed control according to the opening duration of the electromagnetic valve to effectively guarantee effective water replenishing before the atomizing groove is lack of water, or when a water shortage situation or a full water situation occurs, closing the electromagnetic valve timely, to prevent the condition that the atomizing piece is electrified without water in the atomizing groove or the water level of the atomizing groove exceeds the limit, and guarantee the using safety and the suing effect of a humidifier.

Description

technical field [0001] The invention relates to the field of humidifiers, in particular to a humidifier water control method and the humidifier. Background technique [0002] The existing humidifier is provided with an atomizing tank, and an atomizing sheet is arranged at the bottom of the atomizing tank, and the water in the atomizing tank is atomized through the atomizing sheet. During the atomization process, the water level of the atomization tank will gradually decrease. When the atomization tank is short of water, there will be a risk of dry burning of the atomization sheet. Therefore, it is necessary to detect the water level and replenish water in time. [0003] The existing water level control technology of the atomization tank can adopt the capacitive detection method, such as figure 1 As shown, the high water level sensor and the second water level sensor are set to detect the capacitance value of the high water level and the low water level of the atomization ta...

AI Technical Summary

Problems solved by technology

However, this technical solution has the following disadvantages: Since the water temperature will increase during the atomization process, when the water level decreases, the temperature will gradually increase, which will increase the capacitance value and the detected capacitance value will be inaccurate

For example, the preset value of the capacitance of the low water level is 10 units. If the water temperature does not increase, when the water level is at the low water level, the detected capacitance value is 10 units. The humidifier adds water, but due to the atomization process, the water temperature is rising. When the water level is at a low level, the detected capacitance value is greater than the preset 10 units. The judgment result is that there is water and there is no need to add water. Risk of dry burn damage

[0004] There are also technical solutions to improve the low water level detection point to solve the above-mentioned defects of low water level detection, but because raising the low water level detection point will cause the high and low water level points to be too close to each other, the interval between adding water and stopping adding water is too short, and the switch is kept on and off. Closed, will affect the service life of the circuit

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