Liquid level controller for water tank and ice maker

Abstract

The invention provides a liquid level controller for a water tank and an ice maker. The liquid level controller comprises a first conductor, a second conductor, a first audion and a controller; one end of the first conductor is connected with a voltage source; the first and second conductors are spaced at preset distance in the direction vertical to the liquid surface; the collector electrode of the first audion is connected with the voltage source and the base electrode of the first audion is connected with the second conductor; and the controller is connected with the collector electrode of the first audion through a first diode and is connected with the voltage source through a first resistor. When the first and second conductors both contact with liquid, the first conductor is conducted with the second conductor to control the first audion to be conducted so as to control a liquid level signal inputted to the controller, and then the controller adjusts the liquid level in the water tank according to the liquid level signal. According to the embodiment of the invention, when the first conductor and the second conductor of the liquid level controller are conducted, the audion is conducted and the liquid level signal is a high level signal; and otherwise, the liquid level signal is a low level signal. Thereby, the liquid level controller can realize precise automatic control of the water level according to different liquid level signals, thus avoiding spill of the water.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a liquid level controller and an ice making device for a water tank. Background technique [0002] At present, in the ice making device of the refrigerator, the water storage container of the ice making device can be divided into two types: a completely closed type and an open type. Closed water storage containers generally need to discharge the water in the container before use, and then control the water flow through valves. Open water storage containers generally control the water level by controlling the valve opening and closing time. However, due to changes in the water pressure market, controlling the amount of discharge through time may cause dissatisfaction or overflow of the water in the water storage container. Insufficient or full of water overflow and so on. [0003] However, since the ice making device is used in the refrigerator, if the water over...

AI Technical Summary

Problems solved by technology

However, due to changes in the water pressure market, controlling the amount of discharge through time may cause dissatisfaction or overflow of the water in the water storage container. Insufficient or full of water, etc.

[0003] However, since the ice making device is used in the refrigerator, if the water overflows, it will cause damage to the performance of the whole machine and have an unpredictable impact on the use of the user

Therefore, the method of controlling the amount of water discharged into the water storage container through the discharge time obviously cannot accurately control the water level of the water tank, nor can it judge the water level, which may seriously affect the refrigerator.

Images