Anti-overflow device, anti-overflow control method and system, cooking utensil

Abstract

The invention provides an anti-overflow device, including: a piezoelectric sensor, the piezoelectric sensor includes: a piezoelectric element, an excitation circuit and a vibration pickup circuit, and the excitation circuit is electrically connected to the piezoelectric element to excite the piezoelectric element to vibrate , the piezoelectric element is set on the cooking utensil, and the piezoelectric element changes the previous vibration frequency according to the change of the pressure of the cooking utensil on it, and the vibration pickup circuit is electrically connected with the piezoelectric element to detect the vibration frequency of the piezoelectric element The change; the control device, including: a data processing module, electrically connected with the vibration pickup circuit, for processing the vibration frequency, and generating a corresponding control signal; a communication module, electrically connected with the data processing module, for sending the control signal to In the controller of the heating device of the cooking appliance, the communication module is a wireless communication module. When the cooking utensil boils and overflows, a strong impact on the piezoelectric element will change the vibration frequency of the piezoelectric element, and then by detecting the vibration frequency of the piezoelectric element, it can be accurately judged whether the cooking utensil is overflowing.

Description

technical field [0001] The invention belongs to the technical field of kitchen appliances, and in particular relates to an anti-overflow device, an anti-overflow control method, an anti-overflow control system, a computer device, a computer-readable storage medium and a cooking utensil . Background technique [0002] The induction cooker has the problem of boiling and overflowing during the use of soup and porridge, which greatly reduces product quality and user experience. [0003] The general practice is to design a passive anti-overflow structure. For example, a water guide rib with a flow channel function is set around the heat dissipation hole of the induction cooker, and a drain hole is provided at the end. When the overflow of the induction cooker is relatively large, the water passes through the water guide rib and Drain quickly to the outside of the induction cooker through the drain hole. However, the passive anti-overflow structural design cannot realize overflo...

AI Technical Summary

Problems solved by technology

However, the passive anti-overflow structure design cannot realize overflow warning and intelligent control. When the water volume is too large or the heating is too fast, there is a potential risk of anti-overflow failure.

There is also a method of setting a columnar anti-overflow probe in the pot, but it needs to touch the food to realize the overflow detection, and the installation and cleaning of the electrodes are inconvenient

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