Power modulation method for food processor

Abstract

The invention provides a power modulation method for a food processor. The method comprises the steps of: determining the number of chopping points of an AC half-wave according to power modulation precision and the total work of the AC half-wave, and carrying out uniform dividing on the AC half-wave through the plurality of chopping points; acquiring an AC zero crossing point, determining a targetchopping point corresponding to the AC half-wave according to the power requirement of the food processor, and controlling the target chopping point of the AC half-wave to be conducted. According tothe method provided by the technical scheme of the invention, the alternating current half-wave is uniformly divided, and when the power of the food processor is modulated, stepless smooth adjustmentof power can be achieved, namely, equal-power control is carried out, the situation that the power of the food processor is suddenly high and low is avoided, and the user experience degree is improved.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a power modulation method for a food processing machine. Background technique [0002] With the prevalence of the concept of health preservation, food processors such as wall breakers, mixers, mills, meat grinders, and juice machines are playing an increasingly important role in people's lives. Consumers follow the trend to buy food processing machines The machine can meet the processing needs of consumers for different food materials. With the continuous upgrading of products, the performance and functional requirements of consumers for food processors are also constantly improving. [0003] At present, the adjustment and control of the power of the AC power of the food processor is basically controlled by the relay and the thyristor. Specifically, the existing scheme is mainly to compare the actual power and the target power of the food processor, and adjust the conduct...

AI Technical Summary

Problems solved by technology

[0003] At present, the adjustment and control of the power of the AC power of the food processor is basically controlled by the relay and the thyristor. Specifically, the existing scheme is mainly to compare the actual power and the target power of the food processor, and adjust the conduction of the thyristor by comparing the structure. There are two main disadvantages of the existing scheme. One is that the power adjustment accuracy of the food processing machine is not high, because the existing scheme is based on the fuzzy adjustment of the conduction time of the thyristor according to the comparison result of the actual power and the target power. It is also impossible to achieve stepless smooth adjustment of power, that is, equal power control, resulting in sudden high and low power of the food processor. When adjusting the motor, the speed of the motor is high and low, and the speed control is poor. It leads to loud noise and poor consumer experience. When controlling the heating device, the temperature fluctuates up and down, resulting in poor food processing effect; the second is the ambiguity of the conduction time of the thyristor according to the comparison between the actual power and the target power. The adjustment occupies the terminal of the control unit for a long time, which reduces the processing speed of the control unit, affects the real-time operation of the food processor, and further affects the user's operating experience on the food processor

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