Device and method for fault diagnosis of pressure detection device in pressure cooking appliance

Abstract

The invention discloses a fault diagnosis device and a fault diagnosis method for a pressure detection device in a pressure cooking utensil. The pressure detection device comprises a pressure switch,wherein the pressure switch is switched on or switched off according to the pressure in the pressure cooking utensil; the pressure detection device detects the state of the pressure switch for outputting a voltage value; the fault diagnosis device comprises a temperature acquiring module and a judging module, wherein the temperature acquiring module is used for acquiring the current temperature value in the pressure cooking utensil; the judging module is used for judging that whether the pressure detection device has faults or not according to the current temperature value and voltage value. Therefore, the effective detection is carried out on that whether the pressure detection device has faults or not, the risk caused by the fact that when the pressure detection device has faults, a heating device in the pressure cooking utensil still works is avoided, and thus the safety of the pressure cooking utensil is effectively improved.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a fault diagnosis device for a pressure detection device in a pressure cooking appliance and a fault diagnosis method for a pressure detection device in a pressure cooking appliance. Background technique [0002] For pressure cooking appliances, the control of its pressure occupies a very important position in the whole cooking process. [0003] Take the pressure cooker as an example. After the pressure cooker is powered on, the pressure switch is usually used to control the pressure in the pot. The current pressure switch is usually a mechanical structure. When it is working, the pressure in the pot rises. When the pressure reaches the working voltage , the pressure switch will be triggered, so that the power supply circuit of the heating device is disconnected; when the pressure in the pot is lower than the working pressure, the pressure switch will be turned on ag...

AI Technical Summary

Problems solved by technology

[0004] Since the existing pressure switch is a mechanical structure, it is impossible to detect whether it has a fault. If the pressure switch is faulty and the heating device continues to work, it is easy to cause the frying pan phenomenon, which poses a safety hazard

Images