a dust collection device

Abstract

The invention discloses a dust collection device, which solves the problems of poor suction effect and high power consumption of the dust collection device in the prior art. The dust collection device adopts the following steps to control the work of the suction motor. Step 1: Data Initialization; Step 2: When the garbage sensor perceives garbage, it starts to calculate the number of pulses M, the pulse width value R and the pulse width change value ΔR; Step 3: When the timing reaches the preset time T, record the number of pulses M at this moment, and control the circuit The first pulse threshold M1, the second pulse threshold M2 and the pulse width change threshold S are preset, where M1 <m2，若脉冲个数值m≤m1，且脉宽变化值δr≤s时，返回步骤一；若m1<m≤m2，脉宽变化值δr>S and the pulse width value R becomes smaller, return to step 1; if the number of pulses M≤M1, the pulse width change value ΔR>S and the pulse width value R becomes smaller, the PWM value output by the control circuit becomes smaller, and the speed of the suction motor decreases ; Otherwise, the PWM value output by the control circuit becomes larger, and the speed of the suction motor increases.< / m2，若脉冲个数值m≤m1，且脉宽变化值δr≤s时，返回步骤一；若m1<m≤m2，脉宽变化值δr>

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a dust collection device. Background technique [0002] The dust collection device mainly uses the motor to drive the blades to rotate, and generates air negative pressure in the airtight casing to absorb dust. Due to the difference in the type and size of the garbage, the larger garbage is often judged as a single body, no matter what kind of garbage it absorbs. The rotation speed of the motor and the rolling brush is constant, and the larger garbage cannot be normally sucked in due to the constant suction force, and at the same time, when the smaller and dense dust is sucked, it is easy to cause a waste of electric energy. [0003] In order to solve the above problems, the prior art provides a vacuum cleaner using infrared, including a motor control circuit for controlling the normal operation of the motor, a microcontroller as a control center, a display module fo...

AI Technical Summary

Problems solved by technology

However, the specific intelligent processing in the above scheme is mainly for the display module to remind the user, and the user then operates the buttons to adjust the suction of the vacuum cleaner, and manually adjusts the power and suction of the vacuum cleaner. Matching will also cause garbage to be unable to be sucked in quickly or waste of electric energy

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