Motor protection control circuit and method of clothes airing machine

Abstract

The invention discloses a motor protection control circuit and method of a clothes airing machine. The circuit comprises a current detection module which is connected with a direct current motor and used for detecting an output current of the direct current motor in real time and feeding back the detection result to an MCU controller, the MCU controller which is used for starting a timing module according to the obtained output current of the direct-current motor fed back by the current detection module, calculating the remaining service life of the direct current motor according to the timingresult of the timing module, obtaining an output current threshold value according to the remaining service life when the DC motor is hung on the maximum load under the remaining service life, comparing the output current detected by the current detection module with the output current threshold value, and processing according to the comparison result, the timing module which is used for timing under the control of the MCU controller, and a power supply module which is used for supplying the power to the MCU controller, the current detection module and the direct current motor.

Description

technical field [0001] The invention relates to the technical field of daily necessities, in particular to a motor protection control circuit and method for a laundry machine. Background technique [0002] In recent years, along with the high-rise buildings in the city, the elevating clothes dryer installed in the balcony has been widely accepted by people for its advantages of convenience and practicability. Existing lifting clothes dryers can generally be divided into manual and electric types. Due to the continuous improvement of people's living standards, electric clothes dryers have entered thousands of households by virtue of their intelligent, healthy and safe drying methods. [0003] The existing electric lifting clothes dryer is generally composed of a motor system, a transmission device, a lifting wire rope and a pulley. The motor system is very important, and its function is to drive the clothes dryer to complete the functions of rising, falling and stopping. Gene...

AI Technical Summary

Problems solved by technology

[0004] The life of the motor is affected by many factors. Among them, the life of the motor is inversely proportional to the size of the load. Generally, when the load of the motor is larger, the life of the motor is shorter; on the other hand, the longer the service life of the motor , the weaker its load capacity is

[0005] At present, most of the smart clothes dryer products on the market only realize the function of rising or falling of the clothes drying machine. During the process of rising or falling, they do not detect the hanging heavy load to realize the function of protecting the motor. Therefore, , in the use of heavy hanging clothes dryers, the service life of the motor is often shortened due to the overweight hanging weight, which in turn shortens the service life of the clothes dryer, resulting in a bad user experience for users and reducing the reputation of quality. Conducive to the promotion of intelligent clothes dryer

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