Dishwasher and its heating and washing protection control method and device

Abstract

The invention belongs to the technical field of dishwasher control, and provides a dishwasher and a heating and washing protection control method and device thereof. In the present invention, when the dishwasher is in the heating and washing state, the washing pump is connected to the power supply to make the washing pump energized and then detects whether the pressure switch is closed. If yes, the pressure switch is connected to the power supply to make the heating device work; Count the number of detection times, and judge whether the count data reaches the preset number of detection times, if not, continue to connect the washing pump and the power supply to make the washing pump work, and check whether the pressure switch is closed; if so, disconnect the washing pump and power supply The passage between the washing machine stops the washing pump, disconnects the passage between the pressure switch and the power supply, and controls the dishwasher to send out an alarm prompt, so that the dishwasher can be used when the amount of water in the dishwasher is insufficient (including no water) and / or when washing When the pump fails to operate due to abnormality, it realizes power-off protection for the heating device and the washing pump, and reduces the maintenance frequency and cost.

Description

technical field [0001] The invention belongs to the technical field of dishwasher control, and in particular relates to a dishwasher and a heating and washing protection control method and device thereof. Background technique [0002] At present, as a tableware washing device, dishwashers are widely used in restaurants, restaurants, households and other places where various tableware needs to be used, so as to wash tableware in batches and improve tableware washing efficiency. A heating device for heating water and a washing pump for rinsing dishes are usually configured in a dishwasher. When the dishwasher performs washing operations on dishes, the heating device and the washing pump work simultaneously, and the heating device is used to improve the Spray the water temperature of the tableware to improve the cleanliness and drying effect of the tableware. [0003] In the prior art, the heating device in the dishwasher is protected by a fuse or a thermostat. During the oper...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a heating and washing protection control method for dishwashers, which aims to solve the problem that the existing dishwashers cannot heat when the water volume is insufficient (including no water) and / or the washing pump cannot operate due to abnormalities. Devices and washing pumps realize effective protection and send out alarm prompts, which lead to low safety, high maintenance frequency and high maintenance cost of dishwashers

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