Handheld dust collector

Abstract

A handheld dust collector comprises a shell and a motor arranged in the shell, a handheld handle is arranged on the outer side of the shell, an air duct is arranged in the shell, a lateral air inlet is formed in the front end of the air duct, an exhaust port is formed in the rear end of the air duct, and the motor accelerates air in the air duct. The dust collector is characterized in that the air duct sequentially comprises a first-stage centrifugal area, a second-stage filter screen, a third-stage accelerated centrifugal area and a fourth-stage HEPA, and the motor is arranged at the air outlet end of the fourth-stage HEPA and is close to an air outlet of the air duct. The blocking risk of a second-stage filter screen is reduced through the arrangement of graded filtering, the total sectional area of an air duct is reduced, the air speed can be increased by multiple times, and the effect of separating smaller dust is achieved through the combination of the rotary centrifugation principle and the parabolic principle.

Description

technical field [0001] The invention relates to a vacuum cleaner, in particular to a vacuum cleaner. Background technique [0002] At present, vacuum cleaners are mostly divided into two types. One is the older type of vacuum cleaner with a power cord connection. This type of vacuum cleaner has the advantages of high power and suction, and unlimited battery life. But it also has its corresponding disadvantages. Because it has a power cord, it is convenient to use from time to time, and is limited by the length and flexibility of the power cord. The other is a hand-held vacuum cleaner with a battery that has been popular in recent years. It is small in size and has a built-in battery. It does not need to be connected to a wire during use, which is particularly convenient and flexible. The disadvantage is that due to the weight of the whole machine (overweight affects the use experience) and the number of batteries is limited, so the battery life will be limited to a certain ...

AI Technical Summary

Problems solved by technology

The dust separation effect is not enough, resulting in the accumulation of more dust on the surface of the hypa after filtering, resulting in the blockage of the hypa

This results in the need for frequent machine cleaning and more filter hypa

It can be seen that the existing hand-held vacuum cleaners only have a simple one-stage separation for separating the dust passing through the filter screen, and the effect is poor, resulting in the rear Hypa (filter element) is often easily blocked, needs to be cleaned and is easily damaged

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