Liquid level controller for water tank and ice making device comprising same

Abstract

The invention provides a liquid level controller for a water tank and an ice making device comprising the same. The liquid level controller comprises a first conductor, a second conductor, a triode and a controller, wherein one end of the first conductor is connected with a voltage source; the first conductor and the second conductor are spaced at a preset distance in a direction perpendicular to a liquid surface; a collector electrode of the triode is connected with the voltage source; a base electrode of the triode is connected with one end of the second conductor; the controller is connected with an emitting electrode of the triode, so as to receive a liquid level signal emitted from the emitting electrode, and judges a liquid level in the water tank according to the liquid level signal; and when the first conductor and the second conductor are both in contact with liquid, the first conductor and the second conductor are conducted, so as to control the conduction of the triode. By using the liquid level controller according to the embodiment, when the first conductor and the second conductor are conducted, the triode is conducted, the liquid level signal is a high level signal, otherwise, the liquid level signal is a low level signal, so as to achieve the accurate automatic control of a water level according to the difference of the liquid level signal and avoid the overflow of water.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a liquid level controller for a water tank and an ice-making device with the same. 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 ...

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.

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