Device and method for detecting and reminding about maintenance for filter screen of air conditioner

Abstract

The present invention relates to an air conditioner filter screen detection and maintenance prompting device and method. Said device includes reflective sensor mounted in the glass cover and in the inside of filter screen, sensor circuit mounted on the circuit board for inputting sensor detection signal into microcomputer, microcomputer mounted on the circuit board for receiving sensor signal and giving out control signal, buzzer drive circuit for receiving microcomputer control signal. LED display circuit and LED. Said invention also provides the concrete several stages of said prompting method.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and more specifically relates to an air conditioner filter detection reminder maintenance device and method which are installed on the air conditioner filter to automatically detect its cleanliness and can issue sound and light alarms and display inspection results. Background technique [0002] Existing air conditioners are generally composed of an air suction grill installed on the casing panel, an air filter installed in the suction grill, an indoor and outdoor heat exchanger installed in the filter to evaporate or condense the refrigerant, and a compressor for compressing the refrigerant. Composed of compressor, expansion valve, gas-liquid separator, suction and discharge fans and discharge grille. Its working principle is: under the action of the fan, the indoor air that needs temperature regulation enters the air conditioner through the suction grille and the air filter, exchanges ...

AI Technical Summary

Problems solved by technology

Its working principle is: under the action of the fan, the indoor air that needs temperature regulation enters the air conditioner through the suction grille and the air filter, exchanges heat with the heat exchanger (heat absorption, heat release), and then discharges from the grille. It is discharged into the room, and this reciprocating cycle makes the room achieve cooling or heating, but because the air reciprocates in the air conditioner, the dust, fluff fibers and other debris in the air continue to accumulate and precipitate on the filter screen, thereby increasing the circulation resistance. Large, high power consumption rate, low energy utilization rate, low air conditioner efficiency

The traditional way to solve this problem is to remove and clean the air conditioner regularly regardless of the frequency and time of use and the cleaning condition of the filter, which consumes manpower and material resources or does not clean the filter after long-term use, which will not only increase power consumption and reduce the efficiency of the air conditioner It will also damage the air conditioner

[0003] In 1995, the Japanese patent number No. 7-151173 disclosed an air conditioner. It installed a light-emitting part on one side of the filter, and a light-receiving part on the other side of the filter to detect the amount of light transmitted by the change of light passing through the filter. The final detection result shows whether maintenance is required, but the installation of the sensor for this kind of transmission detection of the filter is very inconvenient and there is a problem that it is easy to get dirty or damaged

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