Dish washer and heating wash protection and control method and device thereof

Abstract

The invention belongs to the technical field of dish washer control, and provides a dish washer, and a heating wash protection and control method and a heating wash protection and control device thereof. The heating wash protection and control method of the dish washer includes: when the dish washer is in a heating wash state, connecting a washing pump with a power source so as to power on the washing pump and enable the washing pump to work, and then detecting whether a pressure switch is closed, if yes, connecting the pressure switch with the power source so as to power on a heating device and enable the heating device to work, or if no, counting the number of detection times, and judging whether count data reaches a preset number of the direction times, if no, continuing to connect the washing pump with the power source so as to power on the washing pump and enable the washing pump to work, and detecting whether the pressure switch is closed, or if yes, disconnecting a circuit between the washing pump and the power source so as to enable the washing pump to stop work, disconnecting a circuit between the pressure switch and the power source, and controlling the dish washer to send out an alarm prompt. Accordingly, power-off protection is achieved for the heating device and the washing pump when the dish washer is short of water or does not contain water and / or the washing pump can not run due to abnormity, and maintenance frequency and maintenance cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of dishwasher control, and in particular relates to a dishwasher and its heating and washing protection control method and device. Background technique [0002] At present, the dishwasher is widely used as a tableware washing device in restaurants, restaurants, families and other places that need to use various tableware, so as to wash the tableware in batches and improve the tableware washing efficiency. Dishwashers are usually equipped with a heating device for heating water and a washing pump for rinsing tableware. When the dishwasher performs washing operations on tableware, the heating device and the washing pump work at the same time, and the heating device is used to improve 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 operat...

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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