A kind of anti-dry dishwasher

Abstract

The invention provides an anti-dry dishwasher, which includes a heating device, a thermostat, a main control chip and peripheral hardware circuits, wherein the peripheral circuit includes a detection circuit for detecting the on-off of the thermostat and It is used to disconnect the protection circuit of the main circuit of the heating equipment; the main control chip is connected with the detection circuit and the protection circuit, so that after the detection circuit detects that the thermostat is disconnected, the main circuit is disconnected through the protection circuit. By detecting the on-off of the thermostat, it is possible to respond to dry heating more quickly. Once the thermostat is disconnected, the power supply of the heating equipment is disconnected, and the main control chip controls the protection circuit to disconnect the main circuit. After the device is restored, since the main circuit is still disconnected by the protection circuit, the heating equipment cannot be powered on, which effectively prevents dry heating, and the detection accuracy is high, and the reliability of preventing dry heating is also more ideal.

Description

technical field [0001] The invention relates to a dishwasher, in particular to a dishwasher that prevents dry burning. Background technique [0002] Dishwashers are an essential piece of equipment in the home kitchen. Dishwashers currently on the market are roughly divided into desktop dishwashers, built-in dishwashers, and sink dishwashers. Small and other advantages, widely favored by consumers. [0003] During the cleaning process, the dishwasher needs high-power heating equipment to heat water to achieve the best cleaning effect. On the one hand, because the dishwasher uses special dishwashing powder, etc., it needs to work at a higher temperature; on the other hand, bacteria can be eliminated in a high-temperature environment for a long time to achieve the effect of sterilization. However, once the dishwasher has less water or water leaks, there will be a problem of dry burning. Once the machine is running dry, it is likely to damage the dishwasher. In order to avoi...

AI Technical Summary

Problems solved by technology

However, these anti-dry-burning solutions all prevent dry-burning by measuring the amount of water, and the anti-dry-burning solution cannot be implemented when the sensor fails or the water amount is at a zero threshold.

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