Water level detection unit for air conditioner drainage device

By designing a water level detection unit containing swing arm and Hall elements, the water level detection problem in the air conditioning drainage device is solved, and a simpler and more reliable magnetic sensing effect in this field is achieved.

CN120140877APending Publication Date: 2025-06-13DONGGUAN DONGKENG HELIMEI ELECTRONIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202311831068.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-12-11
Filing Date
2023-12-28
Publication Date
2025-06-13

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Abstract

The invention discloses a water level detection unit used for an air conditioner drainage device. The water level detection unit comprises a mounting plate; the fixed seat is provided with a low-water-level Hall element and a high-water-level Hall element; the swing arm is pivoted on the fixed seat through a shaft rod in a freely rotating and swinging manner, a floating block is arranged at the bottom of the swing arm, and the floating block floats on the water, ascends and descends along with the water level and drives the swing arm to rotate and swing between a low water level position and a high water level position; wherein the swing arm is provided with at least one magnet, and when the swing arm rotates and swings, the at least one magnet is close to the low-water-level Hall element or the high-water-level Hall element, so that the at least one magnet senses the magnetic force.
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Citation Information

Patent Citations

  • Protecting device for water pump of hanging ironing machine

    CN201802603U

  • The composition of the fretting structure of the drainage device

    TWI616624B