Clothes humidity detection device for clothes dryer

Abstract

The invention discloses a clothes humidity detection device for a clothes dryer. The device comprises an isolated power supply conversion module, a detection ring module, a signal conversion module, a signal isolation module and a signal processing module, wherein the isolated power supply conversion module is electrically connected with and supplies power to the signal conversion module, the signal isolation module, the detection ring module and the signal processing module; the detected high-voltage signal is processed into a low-voltage signal and is transmitted to a central processing unit (CPU); therefore, the operating accuracy is improved, the high-voltage signal is isolated, the product safety is improved, and the control circuit is simple and is easy to implement; meanwhile, the signal and a main processor are isolated, a leakage shock event is absent, a signal conversion module circuit is convenient to debug and replace and the signal can be processed customarily by only changing reference circuit parameters; and the invention is easier and more direct to implement.

Description

technical field [0001] The invention relates to a device for collecting and processing sensor signals, in particular to a device for detecting the humidity of clothes in a clothes dryer. After the detected high-voltage signal is processed into a low-voltage signal, it is transmitted to a CPU, Thereby, the accuracy of operation can be improved, and the isolation processing of high-voltage signals can also be realized, and the safety of products can be improved. [0002] Background technique [0003] For the popular automatic washing machines on the market, the function of drying clothes has gradually become popular, and for the water remaining on the clothes, as long as the temperature is suitable and the ventilation is good, the clothes to be dried can be dried immediately. Instant dry effect. [0004] At present, the drying function of the clothes dryer mainly uses the detector head to detect the humidity on the clothes. When the wet clothes touch the detector head, the d...

AI Technical Summary

Problems solved by technology

For the probe head, the short life is one of its disadvantages, and it will age after being used for many times. Moreover, with the passage of time, the probe head is soaked in water and soap, and it is easy to deposit dirt on the surface. In addition, the probe Since the head works with electricity, leakage is more likely to occur, which is very dangerous for household applications.

[0005] In addition, for all-round detection, too many detection heads will cause problems of cost and difficulty in distributing circuits, while too small number of detection heads will not be able to detect the humidity of the clothes and achieve a complete detection state. At the same time, the value detected by the probe head fluctuates greatly, which brings difficulties to the control

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