High overload brushless DC motor drive system and method for kitchen garbage disposer

Abstract

The invention provides a kitchen waste processor high overload brushless DC motor driving system, which comprises a first subtractor, a PI regulator module, a time division switching control module, asecond subtractor, a PI regulator module, a PWM commutation control module, an electronic flywheel-based energy storage device module, a high overload coefficient BLDC module, a pulverization systemmodule, a Hall sensor module, a phase current calculation module and a speed calculation module. The invention also provides a driving method for the kitchen waste processor high overload brushless DCmotor which is realized by the electronic flywheel-based energy storage device module and the high overload coefficient BLDC module. The short-time maximum load torque is adopted to design the maximum torque of the motor, a high overload coefficient is selected to design the rated torque of the motor, a specially-designed capacitor capacity group, short-time heavy-duty pulverization drive is realized, and the short-time high overload coefficient load characteristic is achieved; and compared with the existing kitchen waste processor motor driving system, the motor driving system provided in the invention has the advantages of small size and low cost.

Description

technical field [0001] The invention relates to a special motor drive system for a kitchen waste disposer, in particular to a high overload coefficient brushless DC motor drive system and method for a kitchen waste disposer. Background technique [0002] The kitchen garbage disposer is a kind of cleaning appliance that drives the grinding parts to grind and crush food residues into powder or small particles by a high-speed motor, and is naturally discharged with the water into the sewer. Eliminate kitchen odors, reduce pest infestation, and promote family health. After consulting, the existing relevant patents for kitchen waste disposal mainly protect the mechanical structure of the kitchen waste disposer, such as patent document 1 (CN 105113591 A), which is characterized in that the base has a closed side wall and a downward The open cavity, the motor switch is installed in the cavity, and the base is fixed in the lower casing, wherein, the side wall of the base abuts agai...

AI Technical Summary

Problems solved by technology

Patent Document 2 (CN 207419620 U), which is provided with a suction port, an air exhaust port, a deodorizing box, an exhaust fan, a purification box, a pre-filter, an ion deodorizing device, an active carbon filter, a power supply, a fan, a single-chip microcomputer and The combined use of the deodorizing button solves the problem that the traditional kitchen garbage disposer cannot deal with the internal odor and needs to be manually disassembled and dried.

[0003] At present, there is no patent related to the motor drive system of the kitchen waste disposer, and the motor drive system, as a key component of the kitchen waste disposer, has a short-term high overload factor ( 4 times or more) load characteristics

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