A low-disturbance food processing machine control method

Abstract

The invention provides a low-interference food processor control method. According to the method, a control circuit is adopted; the control circuit comprises a load used for performing food processing, a load circuit used for driving operation of the load, and a control chip; the load circuit comprises a switch; the switch is a relay. The control circuit is characterized in that the control chip is used for detecting the delay time of a relay switch and regulating the trigger control over the on-off time of a relay according to the corresponding on-off delay time. A relay delay detection circuit is arranged, so that the on-off delay time of a relay contact can be automatically recognized by use of the theory that the on-off waveforms of the relay are different; during a function program operation process, the trigger control time of the relay switch is regulated according to the recognized delay time so as to ensure that the relay is triggered at a zero-crossing point of a power supply, so that the service life of the relay is prolonged to a certain extent, and electromagnetic interference brought by on-off action is also reduced.

Description

technical field [0001] The invention relates to a food processor, in particular to a control method for a low-interference food processor. Background technique [0002] Food processors have been used by more and more home users due to their quickness and convenience. The existing commonly used household food processors basically include the following types: electric heating appliance food processors, electric appliance food processors, and food processors combining electric heating and electric heating to achieve crushing or heating and cooking of materials. The crushing of materials is generally carried out by motors, and the heating of materials is carried out by heating devices. In the prior art, motors are inductive components, and the heating devices generally also use resistive heating loads. In the control of food processing machines, in order to realize intelligent pulping, semiconductor electronic switching devices such as thyristors are generally used for the cont...

AI Technical Summary

Problems solved by technology

The other is to directly use anti-electromagnetic interference circuits to solve all of them. Although both methods can be solved, the first method sacrifices the control of product functions and reduces the intelligence of the product. Defects such as longevity issues

The other leads to complex circuits of the product, especially under high-power loads, the parameters of circuit devices are too large, resulting in higher costs

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