Cyclone separating device and vacuum cleaning equipment

Abstract

The invention relates to a cyclone separating device and vacuum cleaning equipment. The cyclone separating device comprises an upstream cyclone separating unit and a downstream cyclone separating unit, wherein the upstream cyclone separating unit and the downstream cyclone separating unit are communicated through an air channel; the downstream cyclone separating unit comprises a plurality of downstream cyclone separators which are arranged in parallel; each of the downstream cyclone separators is provided with a longitudinal axis; the upstream cyclone separating unit is provided with a longitudinal axis; each of the downstream cyclone separators is provided with an air inlet and a dust falling opening; at least two longitudinal axles of the downstream cyclone separators and the longitudinal axle of the upstream cyclone separating unit are skew lines; the longitudinal axles of the downstream cyclone separators are approximately distributed on a gear top of an oblique tooth cone gear; and the distribution direction of the downstream cyclone separators and the air flow rotation direction of the upstream cyclone separating unit are both a clockwise direction or both a counter-clockwise direction.

Description

technical field [0001] The invention relates to a cyclone separation device, in particular to a cyclone separation device for a vacuum cleaner for separating particles such as dust from air fluid. Background technique [0002] The cyclone separation device is a device that generates centrifugal force to separate gas, dust and dirt through the high-speed rotating airflow in the cyclone barrel. The cyclone vacuum cleaner popular in the market is very popular among consumers because of its novel appearance, no dust bag and easy cleaning. With the improvement of people's living standards, new requirements are constantly put forward for the technical performance of vacuum cleaners. In the prior art, two-stage cyclone separation devices are usually connected in series, so that the dust-containing air passes through the upstream cyclone separation device to initially filter out large particles of dust, and then through the downstream cyclone separation to further filter out dust p...

AI Technical Summary

Problems solved by technology

Although the volume of the cyclone separation device is reduced to a certain extent, so that the cyclone separation device has a more compact structure, and because the axis line of the downstream cyclone separator roughly intersects with the center line of the upstream cyclone separator, the downstream cyclone separation The axis line of the device extends upwards and outwards along the radial direction of the upstream cyclone separator, that is to say, the setting direction of the downstream cyclone separator is inconsistent with the flow direction of the airflow, and the airflow in the upstream cyclone separator spirals upwards, while the downstream cyclone separator The outer wall of the cyclone separator forms a barrier in the spiral direction of the airflow, resulting in power loss, so that the working efficiency of the cyclone separation device cannot be further improved, and the separation effect cannot be optimized.

[0004] In addition, since the axis line of the downstream cyclone separator in the prior art extends upward and outward along the radial direction of the upstream cyclone separator, from the upstream The airflow of the cyclone separation device entering the downstream cyclone separator enters the downstream cyclone separator tangentially in a direction approximately perpendicular to the axis of the downstream cyclone separator and gradually whirls downwards. The resistance encountered is relatively large, and turbulent flow is likely to occur or therefore The airflow is not easy to swirl in the downstream cyclone separator, resulting in power loss

[0005] Finally, since the lower part of the downstream cyclone separator in the prior art gradually moves closer, or, as disclosed in the patent 200610139423.7, the axis of each second cyclone barrel The lower ends of the center lines roughly intersect at one point, so the ash outlets of each downstream cyclone separator are gathered at the center of the upstream cyclone separation unit, causing the secondary fine ash to accumulate in the center of the dust collection tube, and the dust is roughly in the middle and high on both sides Low hill-shaped distribution, and the detector on the vacuum cleaner reports that the dust collection cylinder is full when the highest point of dust reaches the designated position, and the dust needs to be dumped, but in fact there is still a lot of space in the dust collection cylinder to collect dust

Therefore, the lower end of the downstream cyclone separator gathers towards the center, and the inevitable defect is the loss of dust collection space.

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