Household vacuum cleaners use the fan impeller driven by a motor at a high speed. The blades in the impeller continuously do work on the air, so that the air in the impeller gets energy and discharges the fan at a very high speed.
At the same time, the air in the dust suction part at the front end of the fan constantly replenishes the air in the impeller, resulting in the formation of an instantaneous vacuum in the dust suction part, that is, a relatively high negative pressure difference between the dust suction part and the outside atmospheric pressure. Under the action of this negative pressure difference, the suction Garbage and dust near the mouth enter the vacuum cleaner along with the airflow, and pass through the filter inside the vacuum cleaner. Garbage and dust remain in the ash storage box, and the air is filtered and then discharged from the vacuum cleaner into the room. This completes the entire vacuuming process.
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