Drainage control detection circuit of dishwasher, dishwasher and its drainage and detection method

Abstract

The invention discloses a water draining control and detection circuit of a dish-washing machine. The water draining control and detection circuit of the dish-washing machine comprises a pressure sensor and a micro controller. The pressure sensor is used for detecting a current water pressure value of a current water level, converts the current water pressure value into an analog voltage signal and outputs the analog voltage signal to the micro controller. A detection port of the micro controller is connected with an output port of the pressure sensor. The micro controller comprises an analog-digital conversion unit, a water draining control unit and a stoppage detection unit. The invention further discloses the dish-washing machine and a water draining and detecting method of the dish-washing machine. A water pressure value of a current water level is detected by the pressure sensor and water draining time is adjusted in real time according to variation of water levels so that intelligent water draining of the dish-washing machine is achieved, a washing period of the dish-washing machine is shortened, energy consumption is reduced and noise is reduced.

Description

technical field [0001] The invention relates to the field of kitchen appliances, in particular to a drainage control and detection circuit for a dishwasher, a dishwasher and a drainage and detection method thereof. Background technique [0002] With the intelligent development of dishwashers, the application of various sensors has become a new development highlight of dishwashers. Most of the dishwashers currently on the market detect the water level at a certain point through the pressure switch device. However, this method cannot linearly detect the water level, so it is impossible to adjust the drainage status in real time through the change of the water level. Therefore, The drainage time cannot be adjusted intelligently to shorten the washing cycle. At the same time, during the operation of traditional dishwashers, due to the set fixed maximum drainage time value, usually the water has been drained and the drainage pump is still idling, which will affect the noise perf...

AI Technical Summary

Problems solved by technology

Most of the dishwashers currently on the market detect the water level at a certain point through the pressure switch device. However, this method cannot linearly detect the water level, so it is impossible to adjust the drainage status in real time through the change of the water level. Therefore, Cannot intelligently adjust the drainage time to shorten the washing cycle

At the same time, during the operation of traditional dishwashers, due to the set fixed maximum drainage time value, usually the water has been drained and the drainage pump is still idling, which will affect the noise performance of the whole machine , will also increase energy consumption

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