Dust cup assembly for vacuum cleaner

Abstract

The invention relates to a dust cup assembly for a dust collector. The dust cup assembly comprises a dust cup, a dust cup top cover arranged at the upper end of the dust cup, a dust cup bottom cover at the lower end of the dust cup, an outer filter arranged in the dust cup, a cyclone separator arranged in the outer filter, and an inner filter arranged in the cyclone separator. A first air inlet isformed in the side wall of the dust cup, an air outlet is formed in the dust cup top cover, and a conical dust pressing cover is arranged at the lower end of the inner filter. The bottom surface of adust collecting umbrella is an inclined surface, and the included angle between the inclined plane and the horizontal plane is 5-30 degrees so as to change the swirl direction of airflow to improve dust pressing and improve the dust pressing efficiency; the dust pressing cover of an umbrella-shaped structure is arranged in the inner filter, dust is effectively prevented from escaping, and the fine dust collecting efficiency of a dust collecting tube is improved; the inner filter is provided with the inclined surface to achieve the dust pressing function and improve the dust separation efficiency of the inner filter, so that the separation efficiency of cyclone separation of the whole dust cup is improved and the separation efficiency is high, wherein the included angle between the inclined surface and the horizontal plane is 3-5 degrees.

Description

Technical field [0001] The invention relates to a vacuum cleaner, in particular to a dust cup assembly for a vacuum cleaner. Background technique [0002] A vacuum cleaner is a commonly used cleaning tool. The motor rotates to generate negative pressure in a closed shell to absorb dust and dust. After the wind is filtered, it is discharged into the atmosphere through the air duct structure. Theoretically, after dust enters the dust cup, due to the centrifugal force and the isolation of the outer filter screen, the dust whose diameter is larger than the outer filter mesh diameter is screwed into the bottom of the dust cup and finally falls on the bottom cover of the dust cup. The holes on the outer filter enter the next level for further filtration. However, due to the limited space of the dust cup, the dust at the bottom of the dust cup cannot stay quietly at the bottom of the dust cup. It will rotate continuously and then rise to the top of the integrated umbrella of the outer ...

AI Technical Summary

Problems solved by technology

However, often limited by the space of the dust cup, the dust at the bottom of the dust cup cannot stay quietly at the bottom of the dust cup, it will rotate continuously and rise to the top of the integrated umbrella of the outer filter, which affects the cyclone separation efficiency; in addition, fine dust Entering the inner filter for filtration, it is easy for dust to escape, resulting in low collection efficiency of fine ash and reduced cyclone separation efficiency

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