Cyclone separator, cyclone separation device and vacuum cleaner having cyclone separation device

Abstract

The invention discloses a cyclone separator, which comprises an inner cylinder body (300) and an outer cylinder body (301), wherein an annular gap (302) is preserved between the outer wall of the inner cylinder and the inner wall of the outer cylinder; the lower end of the inner cylinder is an open end; the lower end of the outer cylinder is a closed end; the wall of the outer cylinder is provided with an air inlet (303); the upper end of the outer cylinder is provided air outlets (304); a return part is arranged between the upper end of the inner cylinder and the air outlet; an air flow enters the cyclone separator from the air inlet on the lower end of the outer cylinder along a tangential direction; one part of an air flow obtained after separation is discharged from the air outlet and the other part of the air flow obtained after separation passes through the annular gap from the return part to be separated again; and the returning air flow obtained after separation enters the inner cylinder to be mixed with a fresh incoming air flow for another time of separation. The invention also relates to a cyclone separation device consisting of the cyclone separator and a vacuum cleaner having the cyclone separation device. The vacuum cleaner of the invention is simple in structure and short in flow path of a single-separation air flow, realizes backflow and circulation and greatly improves separation efficiency while saving energy and protecting environment.

Description

technical field [0001] The invention relates to a cyclone separator, a cyclone separation device equipped with the cyclone separator and a vacuum cleaner thereof. Background technique [0002] The vacuum cleaner uses its built-in motor to drive the fan to generate negative pressure for dust removal. It will not fly dust during operation and use, and can absorb dust that is generally difficult to remove in the gaps and on the carpet. It is easy to use and easy to operate. It is widely used For home and public places. [0003] With the improvement of people's living standards, the awareness of environmental protection is gradually increasing. People's requirements for vacuum cleaners not only meet the function of effective dust collection, but also consider comprehensive factors such as service life, noise, and dust collection efficiency. Thus, the vacuum cleaner with the cyclone separation device came into being and has been generally recognized by people. [0004] The pate...

AI Technical Summary

Problems solved by technology

There is a problem here: when the gas-solid separation of the airflow in the first cyclone unit is insufficient, the airflow entrained with dust particles directly enters the second cyclone unit, and the airflow is entrained in the case of incomplete gas-solid separation in the second cyclone unit. The fine particles of impurities will leave the cyclone and be released into the atmosphere by the electric fan

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