Why can't the water inlet of humidifier be on it?

There are many ways to add water to humidifier. There used to be a water level control principle similar to a toilet. The water level is controlled by separating the water tank from the atomization cavity through the floating ball and connecting rod. When the water level of the atomization chamber reaches a certain height, the floating ball seals the water outlet through the connecting rod, and when it is lower than a certain height, the floating ball descends to open the water outlet, thus realizing automatic control of constant water level. This method has the lowest cost, but the disadvantage is that there are a few impurities in the outlet seal after long use. For example, the toilet leaks, and the water basically flows out with the sewer, which is tolerable. However, humidifiers are often used indoors, which has a great influence on water leakage and even on the safety of use. This method has been eliminated by the market.

Some humidifiers add water to design the atomizing cavity and water tank of the humidifier as a whole. The bottom of the water tank is an atomizer, and the water tank is integrated with the machine body. It can be said that there is no water tank. This design has no water level control function, which completely requires the user to control the water level when adding water. If the water is too deep, the atomization amount is small or even not atomized. If the water is too shallow and atomized, it will be used quickly and at the lowest cost, but it is inconvenient to use, and the amount of water added should not be too large.

In addition, some humidifiers with water adopt another design idea. The water pump is used for pumping water from the bottom of the water tank, pumping the water to the atomization cavity for atomization, and the excess water flows down from the atomization cavity. This way can realize the unification of water level control and water addition. The disadvantage is that the water flow is loud, the pump needs to work continuously, and it consumes a lot of energy and electricity. In addition, the water tank and the machine body are also integrated, which is quite troublesome to clean, and it is impossible to separate the water tank from the machine body, and the cost is high.

To truly realize the design of split water humidifier, it is necessary to comprehensively consider the connection and sealing of water tank, the reliability of control switch when adding water, and the intelligent control of water level in atomization chamber, so as to facilitate adding water, prevent water leakage and realize uniform atomization.

In modern automation control, a large number of electromagnetic valves are used to control the opening and closing of fluid (for example, the infrared automatic induction flusher used in urinals uses electromagnetic valves). The service life of the solenoid valve is more than 50,000 times, and the water tightness is far greater than that of the floating ball and connecting rod control. Obviously, in order to control the opening and closing of the solenoid valve, an intelligent water level control circuit must be added to the atomization cavity to keep the opening and closing of the solenoid valve and the water level in the atomization cavity constant. Therefore, in general, in order to add water, it is necessary to increase the intelligent water level monitoring, which will inevitably increase the cost and whether it can be accepted by ordinary consumers. This is a big problem, and the technical difficulty is not the most critical.