What is a vacuum cleaner?

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What is a vacuum cleaner?
The vacuum cleaner can be divided into vertical, horizontal and portable according to the structure. The working principle of the vacuum cleaner is to use the motor to drive the blade to rotate at high speed, and to generate negative pressure in the sealed shell to absorb dust. In September 2012, my country's household vacuum cleaner production was 7.405 million units. The vacuum cleaner is mainly composed of three parts: dust, vacuum, and dust filtration. Generally, it includes string -stit -stricular electric motors, centrifugal fans, dust collectors (bags) and vacuum attachments. The power of general vacuum cleaners is 400-1000W or higher, and the power of portable vacuum cleaners is generally 250W and below. The vacuum cleaner's dust removal is that its "head" is equipped with an electric fan. There is a windheur wheel on the fans of the fan. After power is powered on, the opportunity to pump up at a speed of 500 circles per second generates high suction and pressure. Under the action of suction and pressure The air in the ground supplement fans causes instantaneous vacuum inside the vacuum cleaner and forms a negative pressure difference with the external atmospheric pressure. Under the influence of the pressure difference, inhale the dust containing dust.