Air purifier

Abstract

The invention provides an air purifier. The air purifier comprises a shell body, an air inducing device, a filtering device and a control device, wherein the shell body is provided with a suction inlet and a blowing outlet of air, the air inducing device sucks the air into the shell body from the suction inlet and blows the air out from the blowing outlet, the filtering device filters and purifiesthe air sucked into the shell body from the suction inlet, the filtering device comprises an inner filtering assembly and an outer filtering assembly, the inner filtering assembly is arranged on theshell body and completely covers the suction inlet, the outer filtering assembly is arranged on the shell body and located on the outer side of the inner filtering assembly, the outer filtering assembly comprises a movable filter screen capable of conducting collecting and winding, the control device controls the air inducing device and the filtering device at the same time, and when the dust accumulation amount of the filtering device is changed, the air inducing device is used for keeping the air amount of the blowing outlet stable. The air purifier has the advantages of being large in air outlet amount and stable in air outlet amount.

Description

technical field [0001] The invention relates to an air purifier, in particular, to an air purifier with a large and stable air output; especially, it is especially suitable for use in a wide space environment. Background technique [0002] Air purifiers are also known as "air cleaners", air fresheners or purifiers. Air purifiers are those that can absorb, decompose or transform various air pollutants (for example, generally include PM2.5, dust, pollen, odor, formaldehyde, etc.) Such as decoration pollution, bacteria, allergens and other aerosol particles), products that can effectively improve air cleanliness are mainly divided into household air purifiers, commercial air purifiers, industrial air purifiers and building air purifiers. [0003] The air purifier mainly uses the filter element device to absorb or remove pollutants. The filter element usually includes a filter screen, and the efficiency of the filter element to absorb pollutants mainly depends on the power of th...

AI Technical Summary

Problems solved by technology

[0007] 1. The clean air has a small air volume and is suitable for a single environment, which cannot meet the occasions that require a large air volume, especially the main occasion where the purifier is used: industrial workshops;

[0008] 2. To increase the filtration capacity simply by increasing the unit area of ​​the filter, on the one hand, it will increase the cost, and multiple devices can be placed in the same area at the same time to meet the purification standard. On the other hand, it will cause difficult maintenance problems. The filter replacement time and cycle of each product are different, and frequent operations are required;

[0009] 3. The noise of the product is high, blindly increasing the power of the fan to increase the air volume, on the one hand, the filtering effect will not meet the standard, on the other hand, it will also cause excessive noise during the working process of the purifier;

[0010] 4. The air output during the working process of the purifier is unstable, especially after the filter has been used for a period of time, the air output decreases significantly, and it is difficult to ensure the filtration and purification effect

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