CN203354470U - Dust and air separation device of vacuum cleaner - Google Patents

Abstract

The utility model relates to a dust and air separation device of a vacuum cleaner. The dust and air separation device of the vacuum cleaner comprises an upstream cyclone separation device and a downstream cyclone separation device, wherein the downstream cyclone separation device comprises a plurality of cyclone separators which are arranged in a parallel connection mode. The downstream cyclone separation device is located on the upper portion of the upstream cyclone separation device. Each cyclone separator comprises an air inlet, a cyclone cone, a first dust discharge opening and an air outlet, wherein airflow containing dust flows into the air inlet after being filtered through the upstream cyclone separation device, the cyclone cone is used for further separating the dust from the air, the first dust discharge opening is used for discharging the dust after the dust is separated from the air, clean airflow flows out of the air outlet, and a second dust discharge opening is formed in the cyclone cone between the air inlet of the cyclone separator and the first dust discharge opening of the cyclone separator. Due to the structure of the dust and air separation device of the vacuum cleaner, the problem that flying dust and coarse particle dust in cyclone radial airflow are bounced in the cyclone cones, escape and enter downstream airflow can be well solved, and the separation efficiency of the dust and air separation device is further improved.

Description

A kind of vacuum cleaner dust air separation

Technical field

The utility model relates to a kind of vacuum cleaner dust air separation, is particularly useful for cleaner, the cyclone dust gas separation structure separated for dirt gas in domestic cleaning appliance.

Background technology

As everyone knows, dirt gas separates the general decanter type dirt gas that adopts and separates, and bag type filtering dirt gas separates, with cyclone dust gas, separate, static dust gas separates, and cyclonic separation is low because of use cost, so be convenient to clean dust and suction can continue extensively employing in cleaner and domestic cleaning appliance.

Cyclone dust gas is separated in available technology adopting whirlwind cone, the air inlet that it is entered by dusty gas, and the conical cyclone separator wall, ash discharging hole, gas outlet forms.When dusty gas enters air inlet with certain speed, along the rotation of conical cyclone separator inwall, under the effect of THE HURRICANE FLOW FIELD, dust rotates downwards along up big and down small conical inboard wall, breaks away from the taper wall at ash discharging hole and discharges; Air-flow, under the effect of negative pressure, is discharged along air outlet.

Prior art shows, air-flow is in whole THE HURRICANE FLOW FIELD motion, be divided into three kinds of air-flows, along the taper wall, rotate, the top-down swirling eddy, under the effect of negative pressure from the tapered wall surface current radial air flow to the cyclone separator center, by after swirling eddy rotation, bottom-up central gas stream under the effect of negative pressure.We are called short circuit air flow the part of the close air outlet of radial air flow, do not participate in downward rotatablely moving and easily the dust of whirlwind wall are directly taken to the air outlet effusion; Because ash discharging hole is the smallest end of tapering point, this position dust is concentrated, the concentration of dust is naturally the highest, dust interferes with each other, simultaneously due to up big and down small whirlwind wimble structure, and the effect of negative pressure, swirling eddy under move downward, in the position of ash discharging hole, radial air flow is maximum, and near ash discharging hole, the dust of higher concentration is very easily taken away by radial air flow like this.Research shows to point to from whirlwind separator wall face in THE HURRICANE FLOW FIELD the radial air flow of central gas stream, the phenomenon (we call dust) of dust being taken to central gas stream is the most direct main influence factor that affects cyclonic separation efficiency, the reason that causes the Effiency of whirlwind Separator to improve.

Find under study for action simultaneously, small-sized cyclone separator cone is undesirable to larger dust separation effect, in many conings wind dust catcher, embody apparent in view, especially in the situation that negative pressure flow velocity ratio is larger, when thicker particle sees through first order whirlwind, enter many conings wind structure that separate the second level, oarse-grained motional inertia is larger, the movement locus that breaks away from cyclonic separation, in the cyclonic separation cone, occur launching, under the effect of high negative pressure, from separating, the second level overflows, enter the next stage filter, have a strong impact on the separative efficiency (separative efficiency of especially calculating with weight method) of piece-rate system.

Summary of the invention

The purpose of this utility model is to provide a kind of efficient cyclone separator, well solves the problem of whirlwind radial air flow dust and the ejection escape of coarse granule dust in the whirlwind cone, further improves the separative efficiency of cyclone separator.

For achieving the above object, the technical solution adopted in the utility model is: a kind of vacuum cleaner dust air separation, the downstream cyclone separator of the cyclone separator that there is the upstream cyclone separator and comprise a plurality of settings that are in parallel, described downstream cyclone separator is positioned at the top of described upstream cyclone separator, each described cyclone separator comprises the air inlet that the dust-contained airflow after the upstream cyclone separator filters flows into, the whirlwind cone of separating for dirt gas, the first ash discharging hole that after dirt gas separates, dust is discharged, and the air outlet of clean gas outflow, it is characterized in that offering the second ash discharging hole on the described whirlwind cone between described cyclone separator air inlet and described cyclone separator ash discharging hole.

Further, described vacuum cleaner dust air separation, its described second ash discharging hole is that at least one the opening that arranges around the cavity wall of described whirlwind cone is towards the passage of chamber outer wall, by described passage, in described cyclone separator under the whirlwind effect along the dust of the cavity wall rotation of described whirlwind cone, especially the larger dust of particle, discharge laterally.

Further, described vacuum cleaner dust air separation, it is characterized in that whirlwind the second cavity that described whirlwind cone comprises vertically disposed whirlwind the first cavity and pyramidal structure, described the second ash discharging hole is positioned at the lower end of described the first cavity, the upper end of described the second cavity.

Further, described vacuum cleaner dust air separation, is characterized in that described whirlwind the first cavity has a downward whirlwind the first cavity extension in described the second ash discharging hole position.

Further, described vacuum cleaner dust air separation, is characterized in that described the second ash discharge open height is positioned at the position of 1/2nd to 3/4ths height of described whirlwind cone height.

Described vacuum cleaner dust air separation further, is characterized in that the opening direction of described the first ash discharging hole and whirlwind cone central axis be not on same straight line.

Further described vacuum cleaner dust air separation, is characterized in that the opening direction of described the first ash discharging hole is consistent with the second ash discharging hole opening direction.

Because technique scheme is used, the utility model compared with prior art has following advantage:

By the second ash discharging hole arranged on described whirlwind cone, make under centrifugal action, dust along whirlwind cone wall is discharged by the second ash discharging hole, no longer enter the second cavity of described whirlwind cone, especially after changing the movement locus caused and change, the diameter of having avoided that thicker particle is entered and producing in the second up big and down small cavity motion process launches phenomenon, under larger suction function, from whirlwind cone air outlet, overflow, greatly promoted the separative efficiency of whirlwind cone, the separative efficiency of the dirt air separation especially calculated in heavy method, the opening direction of the first ash discharging hole is consistent with the second ash discharging hole opening direction simultaneously, being convenient to dust collects.

The accompanying drawing explanation

Accompanying drawing 1 is dirt air separation generalized section of the present utility model;

Accompanying drawing 2 is the generalized section of the cyclone separator with the second ash discharging hole of the present utility model;

Accompanying drawing 3 is the cyclone separator generalized section with whirlwind the first cavity extension of the present utility model;

Accompanying drawing 4, for the utility model band extends out the cyclone separator generalized section of formula whirlwind the first cavity extension;

Accompanying drawing 5 is the whirlwind of the formula that extends out with the chamber tongue the first cavity extension cyclone separator generalized section of the present utility model;

Accompanying drawing 6 is the first ash discharging hole opening direction of the present utility model and the consistent generalized section of the second ash discharging hole opening direction;

In above accompanying drawing:

101 dirt air separation air inlets; 102 dirt air separation gas channels; 103 dirt air separation air outlets; Dirt bucket in 200 dirt air separations; The outer dirt bucket of 300 dirt air separations; 400 dirt air separation mesh filter; 500 cyclone separators; 501 cyclone separator air inlets; 502 whirlwind the first cavitys; 503 whirlwind the second cavitys; 504 cyclone separator air outlets; 505 cyclone separator the first ash discharging holes; 506 cyclone separator the second ash discharging holes; 507 whirlwind centrums; 5021 whirlwind the first cavity extensions; 5021 ' extends out formula whirlwind the first cavity extension; 5021 " with the formula that the extends out whirlwind first chamber extension of chamber tongue; 5022 chamber tongues.

The specific embodiment

Below in conjunction with the drawings and the specific embodiments, the utility model is further described:

Dirt air separation as shown in Figure 1, by dirt air separation air inlet 101, dirt air separation gas channel 102, dirt air separation air outlet 103, dirt bucket 200 in the dirt air separation, the outer dirt bucket 300 of dirt air separation, dirt air separation mesh filter 400, with a plurality of cyclone separators that are arranged in parallel 500, form, dirt air separation air inlet 101 wherein, the outer dirt bucket 300 of dirt air separation, dirt air separation mesh filter 400 forms the upstream cyclone separator, a plurality of cyclone separators that are arranged in parallel 500 form the downstream cyclone separator, the downstream cyclone separator is positioned at the top of upstream cyclone separator, upstream cyclone separator and downstream cyclone separator are communicated with by dirt air separation gas channel 102, dust-contained airflow is after the cyclone separator initial gross separation of upstream, through dirt air separation gas channel 102, entering the downstream cyclone separator further separates, air-flow after separation is discharged through dirt air separation air outlet 103.

Cyclone separator 500 as shown in Figure 2 is by cyclone separator air inlet 501; Whirlwind cone 507, whirlwind cone 507 comprises whirlwind the first cavity 502, whirlwind the second cavity 503; Cyclone separator air outlet 504; Cyclone separator the first ash discharge 505; Cyclone separator the second ash discharging hole 506 forms, dust-contained airflow is from cyclone separator air inlet 501 enters, in the interior rotation of whirlwind the first cavity 502, dust is discharged through cyclone separator the second ash discharging hole 506 under centrifugal action, the dust of other particles continues rotation under the effect of negative pressure cyclone, enters whirlwind the second cavity 503, do the speed change cyclonic motion with the cone cavity, discharge through cyclone separator the first ash discharging hole 505 under centrifugal action.

Cyclone separator as shown in Figure 3, the cavity of whirlwind the first cavity 502 continues to downward-extension in cyclone separator the second ash discharging hole 506 positions, form whirlwind the first cavity extension 5021, make the dust of discharging from cyclone separator the second ash discharging hole 506, the dust of discharging with cyclone separator the first ash discharging hole 505 enters dirt bucket 200. in the dirt air separation in the same direction

Cyclone separator as shown in Figure 4, whirlwind the first cavity extension is for the lower end that extends out formula whirlwind first cavity extension 5021 ' its extension expands outwardly, and the dust after making to separate is cyclone separator 500 centers further away from each other.

Cyclone separator as shown in Figure 5, extend out formula whirlwind the first cavity extension 5021 " upper end is with chamber tongue 5022, reduces the impact on cyclonic air flow of cyclone separator the first ash discharging hole 505 between whirlwind the first chamber 502 and whirlwind the second chamber 503.

Cyclone separator as shown in Figure 6, the first ash discharging hole 505 opening directions are consistent with the second ash discharging hole 506 opening directions, thereby through cyclone separator the first ash discharging hole 505, the dust court that the second ash discharging hole 506 is discharged and the same direction motion that whirlwind cone 507 central axis form an angle, be convenient to dust and collect.

Be below embodiment:

Embodiment 1:

As Fig. 1, the dirt air separation shown in Fig. 4, by dirt air separation air inlet 101, dirt air separation gas channel 102, dirt air separation air outlet 103, dirt bucket 200 in the dirt air separation, the outer dirt bucket 300 of dirt air separation, dirt air separation mesh filter 400, with a plurality of cyclone separators that are arranged in parallel 500, form, dirt air separation air inlet 101 wherein, the outer dirt bucket 300 of dirt air separation, dirt air separation mesh filter 400 forms the upstream cyclone separator, a plurality of cyclone separators that are arranged in parallel 500 form the downstream cyclone separator, the downstream cyclone separator is positioned at the top of upstream cyclone separator, upstream cyclone separator and downstream cyclone separator are communicated with by dirt air separation gas channel 102, dust-contained airflow is after the cyclone separator initial gross separation of upstream, through dirt air separation gas channel 102, entering the downstream cyclone separator further separates, air-flow after separation is discharged through dirt air separation air outlet 103.

Cyclone separator 500, by cyclone separator air inlet 501, whirlwind the first cavity 502, whirlwind the second cavity 503, cyclone separator air outlet 504, cyclone separator the first ash discharging hole 505, cyclone separator the second ash discharging hole 506 forms, cyclone separator air inlet 501 is communicated with dirt air separation gas channel 102, dust-contained airflow is from cyclone separator air inlet 501 enters, in the interior rotation of whirlwind the first cavity 502, dust is discharged through cyclone separator the second ash discharging hole 506 under centrifugal action, the dust of other particles, continue rotation under the effect of negative pressure cyclone, enter whirlwind the second cavity 503, do the speed change cyclonic motion with the cone cavity, under centrifugal action, through cyclone separator the first ash discharging hole 505, discharge, whirlwind the first cavity extension expands outwardly for the lower end that extends out formula whirlwind first cavity extension 5021 ' its extension, dust after making to separate is the cyclone separator center further away from each other, as shown in Figure 4.

The present embodiment is provided with cyclone separator the second ash discharging hole 506 in the lower end of whirlwind the first cavity 502, make the dust of preliminary cyclonic separation away from THE HURRICANE FLOW FIELD, and avoid entering the THE HURRICANE FLOW FIELD in up big and down small conical cyclone the second cavity 503, in cyclone separator in the prior art, the radial air flow that points to the whirlwind center from the cavity wall in THE HURRICANE FLOW FIELD in whirlwind the second cavity 503 be easy to by from the cavity wall emaciated face from dust take away, thereby affecting the separative efficiency of cyclone separator. present technique has reduced greatly and has entered the interior dust quantity of whirlwind the second cavity 503, further reduced the dust treating capacity in whirlwind the second cavity 503, be convenient to the separative efficiency of lifting cyclone separator, also avoided the bulky grain dust to enter the phenomenon that rear escape enters downstream airflow of launching of whirlwind the second cavity 503 interior generations simultaneously.

Embodiment 2:

As shown in Figure 2, vacuum cleaner dust air separation with case study on implementation 1, its cyclone separator second ash discharging hole 506 is between whirlwind the first cavity 502 and whirlwind the second cavity 503, its center relative altitude H1 is positioned at the position of 1/4th to 3/4ths height of described whirlwind cone 500 relative altitude H2, be thereby that H1=1/4H2～3/4H2. has ensured the cyclonic separation effect in whirlwind the first cavity 502 and whirlwind second cavity 503 each flow fields, the separative efficiency of comprehensive lifting cyclone separator.

Embodiment 3:

As shown in Figure 6, vacuum cleaner dust air separation with case study on implementation 1, its cyclone separator 500 first ash discharging hole 505 opening directions are consistent with the second ash discharging hole 506 opening directions, thereby through cyclone separator the first ash discharging hole 505, the dust that the second ash discharging hole 506 is discharged towards with the form an angle same direction motion of ∠ α of whirlwind cone central axis, in case study on implementation 1, the downstream cyclone separator is a plurality of cyclone separators that are arranged in parallel, the first ash discharging hole 505 of each described cyclone separator, the second ash discharging hole 506 all points to vacuum cleaner dust air separation center, being convenient to dust collects.

Above-described embodiment is only explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.

Claims (7)

1. a vacuum cleaner dust air separation, the downstream cyclone separator of the cyclone separator that there is the upstream cyclone separator and comprise a plurality of settings that are in parallel, described downstream cyclone separator is positioned at the top of described upstream cyclone separator, each described cyclone separator comprises the air inlet that the dust-contained airflow after the upstream cyclone separator filters flows into, the whirlwind cone of separating for dirt gas, the first ash discharging hole that after dirt gas separates, dust is discharged, and the air outlet of clean gas outflow, it is characterized in that offering the second ash discharging hole on the described whirlwind cone between described cyclone separator air inlet and described cyclone separator the first ash discharging hole.

2. vacuum cleaner dust air separation according to claim 1, is characterized in that described the second ash discharging hole is that at least one the opening that arranges around described whirlwind cone is towards the passage in the whirlwind cone outside.

3. vacuum cleaner dust air separation according to claim 1, it is characterized in that whirlwind the second cavity that described whirlwind cone comprises vertically disposed whirlwind the first cavity and pyramidal structure, described the second ash discharging hole is positioned at the lower end of described the first cavity, and the upper end of described the second cavity.

4. vacuum cleaner dust air separation according to claim 3, is characterized in that described whirlwind the first cavity has a downward whirlwind the first cavity extension in described the second ash discharging hole position.

5. vacuum cleaner dust air separation according to claim 1, is characterized in that described the second ash discharging hole centre-height is positioned at the position of 1/4th to 3/4ths height of described whirlwind cone height.

6. vacuum cleaner dust air separation according to claim 1, is characterized in that the opening direction of described the first ash discharging hole and whirlwind cone central axis be not on same straight line.

7. vacuum cleaner dust air separation according to claim 6, is characterized in that the opening direction of described the first ash discharging hole is consistent with the second ash discharging hole opening direction.

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