Dust collector and control method and device thereof

Abstract

The invention discloses a dust collector and a control method and device thereof. The dust collector comprises a battery, a draught fan and a voltage adjusting module, and the voltage adjusting moduleis used for adjusting the voltage across the battery to supply power to the draught fan. The method comprises the steps that after a starting running instruction of the dust collector is received, aPWM control signal of the first preset duty ratio is adopted for controlling the voltage adjusting module to make the draught fan work, in the working process of the draught fan, according to at leasttwo of the acquired discharge time, work current and temperature, the duty ratio of the PWM control signal is adjusted, and according to the adjusted PWM control signal, the voltage adjusting moduleis controlled. By means of the method, according to the work current of the draught fan and the temperature and discharge time of the battery, the duty ratio of the PWM control signal is adjusted in real time, therefore not only can the work efficiency of the dust collector be improved, but also it can be avoided that the dust collector is burnt due to the excessive temperature of the battery, thework time of the dust collector can be prolonged, and the reliability of the system is improved.

Description

technical field [0001] The invention relates to the technical field of vacuum cleaners, in particular to a vacuum cleaner control method, a vacuum cleaner control device and a vacuum cleaner. Background technique [0002] At present, in order to meet the needs of users for portability, more and more vacuum cleaners are equipped with batteries. Generally, it takes 4-10 hours to charge the battery, and the continuous working time is 20-30 minutes, which is relatively short. [0003] Moreover, during the working process of the vacuum cleaner, the temperature of the battery will gradually rise. In order to avoid damage to the battery due to high temperature, an over-temperature protection is generally set. was lowered. [0004] In addition, during the working process of the vacuum cleaner, as the voltage of the battery decreases, the working current of the fan in the vacuum cleaner will gradually decrease, which will reduce the working efficiency of the vacuum cleaner and reduc...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to meet the needs of users for portability, more and more vacuum cleaners are equipped with batteries. Generally, it takes 4-10 hours to charge the battery, and the continuous working time is 20-30 minutes, which is relatively short.

[0003] Moreover, during the working process of the vacuum cleaner, the temperature of the battery will gradually rise. In order to avoid damage to the battery due to high temperature, an over-temperature protection is generally set. was lowered

[0004] In addition, during the working process of the vacuum cleaner, as the battery voltage decreases, the working current of the fan in the vacuum cleaner will gradually decrease, which will reduce the working efficiency of the vacuum cleaner and reduce the dust collection effect.

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