A liquid level switch and an air conditioner

Abstract

The invention aims at providing a liquid level switch, mainly aims at solving the problems that an existing liquid level switch is low in sensitivity, small in application range and poor in reliability. The liquid level switch comprises a floater, a signal transmitting device and a signal receiving device, wherein the signal receiving device is used for receiving a signal transmitted by the signal transmitting device and comprises a received state and an un-received state; the liquid level switch is in different on-off states according to different states; and a signal receiving state of the signal receiving device can be changed according to a position change of the floater. The liquid level switch provided by the invention can change the signal receiving state of the signal receiving device through the position change of the floater, so that the on-off state of the liquid level switch is changed; the detection sensitivity is high; and the stability is good. The invention further provides an air conditioner employing the liquid level switch.

Description

technical field [0001] The invention relates to the technical field of liquid level detection, in particular to a liquid level switch and an air conditioner with the liquid level switch. Background technique [0002] At present, the liquid level switch used in the air-conditioning industry is composed of a limit retaining ring, a float, a support rod, and a wire. When it detects the water level in the water tray, the water level rises to a certain height, and the float moves upward under the action of buoyancy, which affects the potential change in the wire, realizes the opening of the liquid level switch, and generates a high-level signal 1; when the water level The float moves downward along the support rod, which affects the potential change of the wire again, realizes the closing of the liquid level switch, and generates a low-level signal 0. [0003] Although the structure of the above liquid level switch is simple, it has the following problems: [0004] 1. Low sensi...

AI Technical Summary

Problems solved by technology

[0004] 1. Low sensitivity;

[0005] 2. When the open (high level) signal is generated, the water level is required to be high, and it cannot be used for low water level detection, and the scope of use is limited;

[0006] 3. The float is external, it is easy to fail when subjected to external force, and the reliability is low

[0007] In view of the above problems, it is urgent to provide a new liquid level switch to solve the problems of low sensitivity, small application range and poor reliability existing in the existing liquid level switch

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