Dust collection device with double-layer filter structure

Abstract

The invention discloses a dust collecting device with a double-layer filter structure. The dust collecting device comprises a dust collecting barrel, a cyclone separator arranged above the dust collecting barrel and communicated with the dust collecting barrel, and a cyclone and a fan-motor assembly which are horizontally arranged in the cyclone separator; the dust collecting device also comprises a filter device; the filter device comprises an accelerating cavity communicated with the cyclone separator, a cyclone generating device arranged at the upper end of the accelerating cavity, and a tiny dust chamber and an exhaust chamber which are communicated with the accelerating cavity and partitioned by a partition plate; and the exhaust chamber is communicated with the fan-motor assembly. The dust collecting device is provided with the tiny dust chamber and the exhaust chamber, the air exhausted by the cyclone separator and carrying tiny dust forms high-speed cyclone under the action of the cyclone generating device, the tiny dust enters the tiny dust chamber under the action of centrifugal force, and the clean air enters the exhaust chamber and flows into a motor. The tiny dust which is not filtered by the cyclone separator is collected to the tiny dust chamber, so that the tiny dust removing effect of the dust collecting device is improved, the fan and the motor are effectively protected, and the service lives of the fan and the motor are prolonged.

Description

technical field [0001] The invention belongs to the field of vacuum cleaners, and specifically relates to a dust collecting device with a double-layer filtering structure provided with a filter device for filtering fine dust and fine dust, which improves the dust removal effect of the dust collecting device and prolongs the service life of a fan and a motor. Background technique [0002] Vacuum cleaner is a kind of household appliance for indoor cleaning and sanitation, which is used to remove dust from floors, carpets, walls, furniture, clothing and various gaps. Generally speaking, a vacuum cleaner mainly includes a suction device and a suction pipeline. The suction device mainly formed by a motor and a fan is arranged in the body. The suction pipeline includes a suction head and a suction pipe. The air port communicates with the air inlet of the fan inside the body through the telescopic pipe and flexible pipe of the suction pipe. [0003] When the vacuum cleaner is runn...

AI Technical Summary

Problems solved by technology

[0008] But, there is following problem in the vacuum cleaner of the prior art as mentioned above: the cyclone separator can only separate the dust of bigger particle, then can not remove for smaller dust or fine dust, even if fine dust falls into the collector thereupon In the dust bucket, it is also easy to enter the cyclone separator again from the dust outlet with the flow of air.

However, the filter box cannot filter out all the fine dust, especially when the vacuum cleaner works continuously for a long time, the sponge in the filter box itself is covered with dust, and can no longer filter out the fine dust discharged from the cyclone separator, reducing the cyclone. Separation Efficiency of Separator

The dust will enter the fan-motor assembly unit, affecting the normal operation of the motor and fan, and even damage the motor

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