CN109330483B - Dust-air separation assembly of dust collector and dust collector - Google Patents

Abstract

The invention discloses a dust-air separation assembly of a dust collector and the dust collector. The dirt-gas separation assembly includes a dirt cup assembly, a cyclone separator, a first baffle, a second baffle, and a filter assembly. The dirt cup assembly is provided with an air inlet and an air outlet. The cyclone separator is arranged in the dust cup component. The first baffle is arranged on the inner peripheral wall of the dust cup assembly and is provided with a first through hole. The second baffle is arranged on the peripheral wall of the cyclone separator and is provided with a second through hole. The filter assembly is arranged at the lower reaches of the cyclone separator and comprises a filter piece and a support, the filter piece is sleeved in the support, the filter piece is provided with a first air outlet channel, the first air outlet channel is communicated with the cyclone separator, and the support is provided with a second air outlet channel communicated with the first air outlet channel. According to the dust-gas separation assembly provided by the invention, the first baffle and the second baffle are arranged, so that the deposition stability of dust can be improved, and the dust-gas separation efficiency of the dust-gas separation assembly can be improved.

Description

Dust-air separation assembly of dust collector and dust collector

Technical Field

The invention relates to the field of domestic electric appliances, in particular to a dust-air separation assembly of a dust collector and the dust collector.

Background

Due to the pneumatic design of the dust cup of the dust collector, airflow enters from the inlet on the side wall of the dust cup, rotates for a circle in the dust cavity and then enters from the filter screen. However, the cyclone airflow formed inside the dust cup has a high rotation speed, so that dust cannot be stably accumulated at the bottom of the dust cup, the dust can flow back to the position of the filter screen, the dust escapes from the mesh holes, and the mesh holes can be even blocked under the condition of large dust amount. In the related art, the bottom flow is restricted by providing a plurality of ribs on the inner bottom wall of the dirt cup, but the effect is not obvious and dust pouring is difficult.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a dust-air separating assembly of a vacuum cleaner with good dust-air separating effect.

The invention also provides a dust collector with the dust-air separation assembly.

The invention also provides a dust-air separation component of the dust collector with good dust-air separation effect.

The dust-air separation assembly of the dust collector comprises: a dirt cup assembly having an air inlet and an air outlet; the cyclone separator is arranged in the dust cup assembly, and the inner space of the cyclone separator is communicated with the air inlet; the first baffle is arranged on the inner peripheral wall of the dust cup assembly and is provided with a first through hole; the second baffle is arranged on the outer peripheral wall of the cyclone separator and provided with a second through hole; the filter assembly is arranged at the downstream of the cyclone separator and comprises a filter piece and a support, one end of the support is open, the other end of the support is closed, the support is sleeved with the filter piece, the filter piece is provided with a first air outlet channel, the first air outlet channel is communicated with the inner space of the cyclone separator, and the support is provided with a second air outlet channel communicated with the first air outlet channel.

According to the dust-air separation assembly of the dust collector, the first baffle and the second baffle are arranged, when airflow with dust in the dust cup assembly flows through the first baffle or the second baffle, the airflow can continuously flow through the first through hole or the second through hole, and the dust can fall to the bottom of the dust cup assembly under the action of gravity after slapping the first baffle or the second baffle, so that the stability of dust deposition can be improved, and the dust-air separation efficiency of the dust-air separation assembly can be improved. In addition, the filter assembly is arranged to further filter the airflow passing through the cyclone separator, so that the dust-air separation efficiency of the dust-air separation assembly can be further improved.

According to some embodiments of the present invention, the first baffle is provided in plurality, and the plurality of first baffles are arranged at intervals along a circumferential direction of the dirt cup assembly, and each of the first baffles is provided with a plurality of first through holes.

According to some embodiments of the invention, the first baffle is disposed at an axially lower end of the dirt cup assembly.

According to some embodiments of the invention, the second baffle comprises: the first section is annular, the first section is sleeved on the cyclone separator, and the first section is provided with the second through hole; and the second section is cylindrical, and one end of the second section in the axial direction is connected with the radial outer end of the first section.

According to some embodiments of the invention, the second penetration hole is plural, and the plural second penetration holes are arranged at intervals in a circumferential direction of the cyclone.

According to some embodiments of the invention, a filter screen is provided in the second through hole.

According to some embodiments of the invention, the cyclone separator comprises: the primary cyclone separation assembly is positioned in the dust cup assembly, a first cyclone channel is defined by the primary cyclone separation assembly and the dust cup assembly, and the first cyclone channel is communicated with the air inlet; the secondary cyclone separation assembly is at least partially positioned in the primary cyclone separation assembly, a second cyclone channel is limited by the secondary cyclone separation assembly and the primary cyclone separation assembly, the first cyclone channel is communicated with the second cyclone channel, an air flow channel is arranged in the secondary cyclone separation assembly, and air flow in the second cyclone channel flows to the first air outlet channel through the air flow channel.

In some embodiments of the invention, the primary cyclonic separating assembly comprises: the dust-gas separation part is sleeved outside part of the secondary cyclone separation component, one end of the dust-gas separation part is connected with the secondary cyclone separation component, the other end of the dust-gas separation part is abutted against the inner bottom wall of the dust cup component, and the second baffle is arranged on the outer peripheral wall of the dust-gas separation part; the conical cylinder is arranged in the dust-gas separation part, part of the conical cylinder is sleeved outside part of the secondary cyclone separation assembly, the aperture of the conical cylinder is gradually reduced in the direction from the open end to the closed end of the dust cup assembly, and the conical cylinder and the secondary cyclone separation assembly define the second cyclone channel; the filter cartridge is sleeved outside the dust-gas separation part, the upper end face of the filter cartridge is connected with the secondary cyclone separation component, the lower end face of the filter cartridge is connected with the second baffle, the first cyclone channel is limited by the outer peripheral wall of the filter cartridge and the inner peripheral wall of the dust cup component, the filter cartridge is provided with a third through hole, and the first cyclone channel is communicated with the second cyclone channel through the third through hole.

In some embodiments of the invention, the secondary cyclonic separating assembly comprises: the supporting part is annular and is connected with the dust cup assembly; the cyclone cylinder is in a cylindrical shape with one open end and the other closed end, the airflow channel is constructed in the cyclone cylinder, the open end of the cyclone cylinder is connected with the supporting part, and the peripheral wall of the cyclone cylinder is provided with a third baffle.

In some embodiments of the present invention, the third baffle is provided in plurality, and the third baffles are arranged at intervals along the circumferential direction of the cyclone.

According to some embodiments of the invention, at least a portion of the filter assembly is located within the dirt cup assembly, the outer peripheral wall of the bracket is spaced apart from the inner peripheral wall of the dirt cup assembly to form a third outlet channel, the third outlet channel is in communication with the second outlet channel, and the third outlet channel is located downstream of the second outlet channel in the flow direction of the airflow.

According to some embodiments of the invention, the peripheral wall of the bracket is provided with a plurality of spaced fourth through holes, and each fourth through hole defines one of the second air outlet channels.

In some embodiments of the present invention, an extending direction of the first outlet channel is perpendicular to an extending direction of the second outlet channel.

The dust collector comprises the dust-air separation assembly of the dust collector.

According to the dust collector provided by the embodiment of the invention, the first baffle and the second baffle are arranged, when the airflow with dust in the dust cup assembly flows through the first baffle or the second baffle, the airflow can continuously flow through the first through hole or the second through hole, and the dust can fall to the bottom of the dust cup assembly under the action of gravity after slapping the first baffle or the second baffle, so that the stability of dust deposition can be improved, and the dust-air separation efficiency of the dust-air separation assembly can be improved. In addition, the filter assembly is arranged to further filter the airflow passing through the cyclone separator, so that the dust-air separation efficiency of the dust-air separation assembly can be further improved.

The dust-air separation assembly of the dust collector comprises: the dust cup assembly is provided with an air inlet and an air outlet; the cyclone separator is arranged in the dust cup assembly, and the inner space of the cyclone separator is communicated with the air inlet; the first baffle is arranged on the inner peripheral wall of the dust cup assembly and is provided with a first through hole; and the second baffle is arranged on the peripheral wall of the cyclone separator and provided with a second through hole.

According to the dust-air separation assembly of the dust collector, the first baffle and the second baffle are arranged, when airflow with dust in the dust cup assembly flows through the first baffle or the second baffle, the airflow can continuously flow through the first through hole or the second through hole, and the dust can fall to the bottom of the dust cup assembly under the action of gravity after slapping the first baffle, so that the stability of dust deposition can be improved, and the dust-air separation efficiency of the dust-air separation assembly can be improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional structural cut-away view of a dust and gas separation assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a dust and gas separation assembly according to an embodiment of the present invention;

FIG. 3 is an exploded view of a dust and gas separation assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a first baffle of a dust and gas separation assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a first baffle of a dust and gas separation assembly according to an embodiment of the present invention;

FIG. 6 is a schematic partial structure view of a dust and gas separation assembly according to an embodiment of the present invention;

FIG. 7 is a schematic view of a portion of a dirt cup assembly of the dirt-gas separation assembly in accordance with an embodiment of the present invention;

FIG. 8 is a schematic structural view of a secondary cyclonic separating assembly of the dirt and gas separating assembly in accordance with an embodiment of the present invention;

FIG. 9 is a schematic diagram of a secondary cyclonic separating assembly of the dirt and gas separating assembly according to an embodiment of the present invention.

Reference numerals:

the dust-gas separation assembly (1),

a dirt cup assembly 10, an air inlet 11, an air outlet 12, a dirt cup housing 100, a dirt cup bottom cover 110, a first baffle 120, a first through hole 121, a cyclone 20,

the primary cyclone assembly 21, the first cyclone passage 210,

a dust-gas separating part 211, a cone-shaped cylinder 212, a second cyclone passage 213, a filter cylinder 214, a third through hole 215, an air flow inlet 216,

the secondary cyclonic separating assembly 22 is provided in the form of a cyclone,

a support part 220, a cyclone 221, an airflow path 222, a third baffle 223, a hollow structure 224, a sealing part 225,

a second baffle 30, a second through hole 300, a filter screen 301, a first section 31, a second section 32, a filter assembly 40, a filter element 400, a first air outlet channel 401, a bracket 410, a second air outlet channel 411, a third air outlet channel 412,

a first seal ring 50, a second seal ring 60, and a third seal ring 70.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 to 3, the dirt-air separating assembly 1 of the vacuum cleaner according to the embodiment of the present invention includes a dirt cup assembly 10, a cyclone 20, a first baffle 120, a second baffle 30, and a filter assembly 40.

Specifically, as shown in FIGS. 1-3 and 7, the dirt cup assembly 10 is provided with an air inlet 11 and an air outlet 12. The airflow outside the dirt cup assembly 10 can flow into the dirt cup assembly 10 through the air inlet 11, and the airflow inside the dirt cup assembly 10 can flow out of the dirt cup assembly 10 through the air outlet 12. The cyclonic separator 20 is disposed within the dirt cup assembly 10. It will be appreciated that the cyclonic separator 20 is located within the dirt cup assembly 10 and is connected to the dirt cup assembly 10. The inner space of the cyclone 20 communicates with the gas inlet 11.

As shown in fig. 1 to 3 and 7, the first baffle 120 is disposed on the inner peripheral wall of the dirt cup assembly 10, and the first baffle 120 has a first through hole 121. It will be appreciated that one side of the first baffle 120 is connected to the inner peripheral wall of the dirt cup assembly 10 and the other side of the first baffle 120 extends toward the center of the dirt cup assembly 10. The second baffle 30 is provided on the outer peripheral wall of the cyclone 20, and has a second through hole 300. It will be appreciated that one side of the second baffle 30 is connected to the outer peripheral wall of the cyclone 20 and the other side of the second baffle 30 is remote from the cyclone 20. Here, the hole diameters of the first through hole 121 and the second through hole 300 are not particularly limited, and the second through hole 300 is suitable for passing the air flow, but not suitable for passing the dust particles. The filter assembly 40 is disposed downstream of the cyclone separator 20 in the direction of flow of the airflow. In other words, the airflow first flows through the cyclonic separator 20 and then through the filter assembly 40. The filter assembly 40 includes a filter 400 and a bracket 410, the bracket 410 forms a cylinder member with one end open and the other end closed, the support 410 is sleeved in the filter 400, the filter 400 has a first air outlet channel 401, the first air outlet channel 401 is communicated with the inner space of the cyclone separator 20, and the bracket 410 has a second air outlet channel 411 communicated with the first air outlet channel 401. It will be appreciated that the airflow from the cyclone separator 20 may flow from the open end of the support 410 to the first outlet channel 401 of the filter 400, and the second outlet channel 401 may flow to the second outlet channel 411 after passing through the filter 400.

According to the dust-air separating assembly 1 of the dust collector of the embodiment of the invention, by arranging the first baffle 120 and the second baffle 30, when the airflow with dust in the dust cup assembly 10 flows through the first baffle 120 or the second baffle 30, the airflow can continuously flow through the first through hole 121 or the second through hole 300, and after the dust is flapped on the first baffle 120 or the second baffle 30, the first baffle 120 or the second baffle 30 can prevent the dust from continuously flowing along with the airflow, and the dust can fall to the bottom of the dust cup assembly 10 under the action of gravity, so that the stability of dust deposition can be improved, and the dust-air separating efficiency of the dust-air separating assembly 1 can be improved. In addition, the filter assembly 40 is provided to further filter the airflow passing through the cyclone separator 20, so that the dust-air separation efficiency of the dust-air separation assembly 1 can be further improved.

As shown in fig. 1 and 7, according to some embodiments of the present invention, the first baffle 120 may be a plurality of baffles, a plurality of first baffles 120 may be arranged at intervals along the circumferential direction of the dirt cup assembly 10, and each first baffle 120 is provided with a plurality of first through holes 121. Since the flow path of the airflow in the dirt cup assembly 10 is a spiral, by providing the plurality of first baffles 120 in the circumferential direction of the dirt cup assembly 10, the plurality of first baffles 120 have a wider range of action and a more effective action.

In some embodiments of the present invention, as shown in fig. 1 and 7, the first baffle 120 extends at an angle of less than 90 degrees to the axial direction of the dirt cup assembly 10. Further, the first baffle 120 can extend in the axial direction of the dirt cup assembly 10. Thereby, the air flow may flap on the first baffle 120, so that the effect of the first baffle 120 may be enhanced.

As shown in fig. 1, 4 and 5, according to some embodiments of the present invention, the second barrier 30 may include a first section 31 and a second section 32, one end of the first section 31 is connected to the outer circumferential wall of the cyclone 20, the other end of the first section 31 extends toward the dirt cup assembly 10, and the first section 31 is provided with a second through hole 300. It will be appreciated that the second baffle 30 on the cyclonic separator 20 comprises a first section 31 and a second section 32. The second stage 32 is cylindrical, and one end of the second stage 32 in the axial direction is connected to the first stage 31. For example, in some embodiments of the present invention, the second section 32 can be formed in a cylindrical shape with the central axis of the second section 32 being collinear with the central axis of the dirt cup assembly 10.

From this, the installation of second baffle 30 can be convenient for, and the periphery wall of second section 32 and the internal perisporium of dirt cup subassembly 10 can inject a narrow space, so that most air current tends to pass from second perforating hole 300 on second baffle 30, and only very little air current passes from the narrow and small space between the periphery wall of second section 32 and the internal perisporium of dirt cup subassembly 10, thereby can improve the effect of blockking the dust by second baffle 30, and then can improve the dirt gas separation effect of dirt gas separator 1.

As shown in fig. 1, 4 and 5, in some embodiments of the present invention, the second baffle 30 may include a first section 31 and a second section 32, the first section 31 is annular, and the first section 31 is sleeved on the cyclone separator 20. The first segment 31 is provided with a second through hole 300. The second segment 32 is cylindrical, and one end of the second segment 32 in the axial direction is connected to the radially outer end of the first segment 31. For example, the second section 32 can be formed in a cylindrical shape with the central axis of the second section 32 being collinear with the central axis of the dirt cup assembly 10.

From this, the installation of second baffle 30 can be convenient for, and the periphery wall of second section 32 and the internal perisporium of dirt cup subassembly 10 can inject a narrow space, so that most air current tends to pass from second perforating hole 300 on second baffle 30, and only very little air current passes from the narrow and small space between the periphery wall of second section 32 and the internal perisporium of dirt cup subassembly 10, thereby can improve the effect of blockking the dust by second baffle 30, and then can improve the dirt gas separation effect of dirt gas separator 1. In addition, the connection between the second baffle 30 and the cyclone separator 20 is facilitated, and the airflow has a flowing direction parallel to the inner wall surface of the dirt cup assembly 10 after passing through the first section 31, so that the condition that the flow velocity of the airflow is reduced due to the collision between the airflow and the inner wall surface of the dirt cup assembly 10 can be avoided.

As shown in fig. 1 and 7, according to some embodiments of the present invention, the first baffle 120 is disposed at the lower axial end of the dirt cup assembly 10. It is to be appreciated that the first baffle 120, which is disposed on the inner peripheral wall of the dirt cup assembly 10, can be located near the bottom of the dirt cup assembly 10. Therefore, in the process that the airflow with dust passes through the first baffle 120 on the dust cup assembly 10, the dust can be attached to the first baffle 120 and accumulated, and when the dust at the bottom of the dust cup assembly 10 is gathered to a certain extent, the dust can be stabilized and accumulated at the first baffle 120, so that the problems of difficult dust pouring and incomplete dust pouring caused by the arrangement of ribs on the inner bottom wall of the dust cup assembly 10 in the related art can be avoided.

As shown in fig. 1, 4, 5 and 7, in some embodiments of the present invention, the second through hole 300 may be multiple, and the multiple second through holes 300 are arranged at intervals. Accordingly, the airflow can pass through the second baffle 30 through the plurality of second through holes 300, so that the airflow passing through the second baffle 30 can be increased, and the influence of the second baffle 30 on the flow velocity of the airflow can be avoided.

It should be noted that the terms "plurality" and "a" as used herein mean two or more. Here, the plurality of second through holes 300 is provided only as an example, and the configuration of the second shutter 30 is not particularly limited. In some embodiments of the present invention, there may be one second through hole 300. For example, the second shutter 30 is provided with one second through hole 300, and the second through hole 300 may be formed in a ring shape and extend in the circumferential direction of the cyclone 20.

As shown in fig. 4, a filter screen 301 may be disposed in the second penetration hole 300 according to some embodiments of the present invention. The air flow needs to pass through the filter mesh 301 to pass through the second penetration hole 300. The filter screen 301 is arranged to better separate the airflow from the dust to improve the purity of the airflow before it enters the cyclone separator 20. Further, the filter screen 301 may be a gauze, a metal mesh, or a filter cotton with micro pores.

As shown in fig. 1, according to some embodiments of the invention, the cyclonic separator 20 includes a primary cyclonic separating assembly 21 and a secondary cyclonic separating assembly 22. The primary cyclonic separation assembly 21 is located within the dirt cup assembly 10, the primary cyclonic separation assembly 21 and the dirt cup assembly 10 defining a first cyclonic path 210, the first cyclonic path 210 being in communication with the air inlet 11. At least part of the secondary cyclone separation assembly 22 is positioned in the primary cyclone separation assembly 21, the secondary cyclone separation assembly 22 and the primary cyclone separation assembly 21 define a second cyclone passage 213, the first cyclone passage 210 is communicated with the second cyclone passage 213, an airflow passage 222 is arranged in the secondary cyclone separation assembly 22, and airflow in the second cyclone passage 213 flows to the first air outlet passage 401 through the airflow passage 222. Therefore, the dust-gas separation efficiency of the dust-gas separation assembly 1 can be improved by arranging the primary cyclone separation assembly 21 and the secondary cyclone separation assembly 22.

For example, as shown in FIG. 1, the primary and secondary cyclonic separating assemblies 21 and 22 are each formed as a pass-through, i.e. both the primary and secondary cyclonic separating assemblies 21 and 22 have a pass-through passage. The outer peripheral wall of the primary cyclonic separating assembly 21 is spaced from the inner peripheral wall of the dirt cup assembly 10 and the space between the outer peripheral wall of the primary cyclonic separating assembly 21 and the inner peripheral wall of the dirt cup assembly 10 may be configured to form the first cyclonic channel 210. A portion of the secondary cyclone assembly 22 extends into the through passage of the primary cyclone assembly 21, the outer peripheral wall of the secondary cyclone assembly 22 is spaced apart from the inner peripheral wall of the primary cyclone assembly 21, a space between the outer peripheral wall of the secondary cyclone assembly 22 and the inner peripheral wall of the primary cyclone assembly 21 may be configured to form a second cyclone passage 213, and the first cyclone passage 210 communicates with the second cyclone passage 213. The through passage of the secondary cyclonic separating assembly 22 may be configured to form an airflow passage 222. The airflow channel 222 is communicated with the first air outlet channel 401. The airflow may flow through the first cyclone channel 210, the second cyclone channel 213, and the airflow channel 222 in sequence through the air inlet 11 of the dirt cup assembly 10, and then flow to the first air outlet channel 401 of the filter assembly 40.

As shown in fig. 1-3, in some embodiments of the invention, the primary cyclonic separating assembly 21 may include a dirt-gas separation section 211, a cone 212 and a filter cartridge 214. The dust-gas separating portion 211 is sleeved on part of the secondary cyclone separating assembly 22, one end of the dust-gas separating portion 211 is connected with the secondary cyclone separating assembly 22, and the other end of the dust-gas separating portion 211 abuts against the inner bottom wall of the dust cup assembly 10. The second baffle 30 may be provided at the outer circumferential wall of the dust-gas separating portion 211. Thus, the second baffle 30 may act on the dust air flow in the first cyclone passage 210 to stably deposit dust on the bottom of the dust cup assembly 10, so that the dust can be prevented from entering the second cyclone passage 213.

As shown in FIG. 1, the cone 212 is disposed within the dirt and gas separating portion 211, the cone 212 partially surrounds a portion of the secondary cyclone separation assembly 22, and the cone 212 and the secondary cyclone separation assembly 22 define a second cyclone passage 213, the diameter of the cone 212 decreasing in a direction from the open end to the closed end of the dirt cup assembly 10. The filter cartridge 214 is sleeved on the dust and gas separating part 211, the upper end surface of the filter cartridge 214 is connected with the secondary cyclone separation assembly 22, the lower end surface of the filter cartridge 214 is connected with the second baffle 30, the outer peripheral wall of the filter cartridge 214 and the inner peripheral wall of the dirt cup assembly 10 define a first cyclone channel 210, the filter cartridge 214 is provided with a third through hole 215, and the first cyclone channel 210 is communicated with a second cyclone channel 213 through the third through hole 215.

For example, as shown in fig. 1 to 3, the dust-gas separating part 211, the cone-shaped cylinder 212, and the filter cartridge 214 are each formed as a penetrating member, i.e., the dust-gas separating part 211, the cone-shaped cylinder 212, and the filter cartridge 214 each have a through passage therethrough. The secondary cyclone assembly 22 is connected to an inner wall surface of the dirt cup assembly 10, the dirt and gas separating portion 211 is sleeved on a portion of the secondary cyclone assembly 22, and an outer peripheral wall of the portion of the secondary cyclone assembly 22 is spaced apart from an inner peripheral wall of the dirt and gas separating portion 211. The lower end surface of the dust-gas separating portion 211 abuts against the inner bottom wall of the dust cup assembly 10.

The cone 212 is located in the dust and air separating portion 211, and one end of the cone 212 is connected to an inner circumferential wall of the dust and air separating portion 211 and the other end of the cone 212 extends toward a bottom wall of the dirt cup assembly 10. A portion of the cone 212 is fitted over the secondary cyclone assembly 22, and the circumference of the contour line of the cross-section of the cone 212 is gradually reduced in a direction from the open end to the closed end of the dirt cup assembly 10, and the space between the outer circumferential wall of the cone 212 and the inner circumferential wall of the dirt-gas separating portion 211 defines a second cyclone passage 213.

The filter cartridge 214 is externally fitted to the dust and gas separating portion 211, an upper end surface of the filter cartridge 214 is connected to the secondary cyclone assembly 22, a lower end surface of the filter cartridge 214 is connected to the second baffle 30, an outer peripheral wall of the filter cartridge 214 is spaced apart from an inner peripheral wall of the dirt cup assembly 10, a space between the outer peripheral wall of the filter cartridge 214 and the inner peripheral wall of the dirt cup assembly 10 may be configured to form the first cyclone passage 210, the filter cartridge 214 has a third through hole 215, and the first cyclone passage 210 communicates with the second cyclone passage 213 through the third through hole 215.

Thus, by providing the filter cartridge 214 with the third penetration holes 215, one-stage separation of dirt and air flow can be achieved, the air flow can pass through the third penetration holes 215, and the dirt and dust cannot pass through the third penetration holes 215 to flow from the first cyclone passage 210 to the bottom wall of the dirt cup assembly 10. By providing the cone 212, a two-stage separation of dirt and air can be achieved, the air can flow out of the air flow passage 222 of the secondary cyclonic separating assembly 22, and the dirt and air can flow along the inner wall surface of the cone 212 towards the bottom wall of the dirt cup assembly 10, thereby achieving a two-stage separation of dirt and air.

As shown in fig. 1, 8 and 9, in some embodiments of the present invention, the secondary cyclonic separating assembly 22 includes a support portion 220 and a cyclone 221, the support portion 220 is annular, and the support portion 220 is connected to the dirt cup assembly 10. The outer peripheral wall of the cyclone 221 and the primary cyclone separation assembly 21 define a second cyclone passage 213, the cyclone 221 forms a cylinder shape with one open end and the other closed end, an airflow passage 222 is formed in the cyclone 221, the open end of the cyclone 221 is connected with the support part 220, and a third baffle 223 is arranged on the outer peripheral wall of the cyclone 221. For example, an outer circumferential end surface of the support 220 may be connected to an inner circumferential wall of the dirt cup assembly 10, and an open end of the cyclone 221 may be connected to an inner circumferential end surface of the support 220. The outer circumferential wall of the cyclone 221 is spaced apart from the inner circumferential wall of the primary cyclone assembly 21 to configure the second cyclone passage 213.

Therefore, the structure arrangement of the secondary cyclone separation assembly 22 can be simplified, and the arrangement of the third baffle 223 can form a blocking effect on dust separated from dust in the second cyclone passage 213, so as to effectively improve the condition that the dust is lifted from the inside of the dust cup assembly 10 to enter the airflow passage 222, and thus the separation efficiency of the dust-gas separation assembly 1 can be improved.

As shown in fig. 1-2, 8 and 9, in some embodiments of the present invention, the peripheral wall of the cyclone cylinder 221 is provided with a plurality of hollow structures 224 arranged at intervals, and the second cyclone passage 213 can communicate with the airflow passage 222 through the hollow structures 224. The third baffle 223 is disposed on the outer peripheral wall of the cyclone 221 and below the hollow structure 224. Accordingly, the airflow with dust enters the airflow path 222 after passing through the third baffle 223, so that the purity of the airflow entering the airflow path 222 can be improved. Further, the hollow structures 224 may be multiple, and the multiple hollow structures 224 may be arranged at intervals along the circumferential direction of the cyclone barrel 221. Thereby, the efficiency of the air flow entering the air flow path 222 from the second cyclone path 213 can be improved.

As shown in fig. 8 and 9, in some embodiments of the present invention, the third baffle 223 may be multiple, and the multiple third baffles 223 are arranged at intervals along the circumferential direction of the cyclone 221. This can enlarge the range of action of the third baffle 223. In some embodiments of the present invention, the third baffle 223 is located directly below the hollowed-out structure 224. This can improve the effect of the third baffle 223.

As shown in fig. 8 and 9, in some embodiments of the present invention, the cyclone 221 has a necking portion, the circumference of the outer contour line of the cross section of the necking portion is gradually reduced from the open end to the closed end of the cyclone 221, and the hollow structure 224 is disposed at the necking portion. Further, the shape of the throat is similar to the shape of the tapered barrel 212. Thus, the cyclonic airflow can enter the hollowed-out structure 224 in its direction of motion.

In some embodiments of the invention, the end face of the closed end is a tapered face. Thus, the cyclonic airflow may be directed in a swirling motion towards the bottom wall of the dirt cup assembly 10 by the tapered surface.

As shown in fig. 1, according to some embodiments of the present invention, at least a portion of the filter assembly 40 is located in the dust cup assembly 10, the outer peripheral wall of the bracket 410 is spaced apart from the inner peripheral wall of the dust cup assembly 10 to form a third outlet channel 412, the third outlet channel 412 is communicated with the second outlet channel 411, and the third outlet channel 412 is located downstream of the second outlet channel 411 in the flow direction of the airflow. In other words, the airflow first flows through the second outlet channel 411 and then flows into the third outlet channel 412. Thus, installation of the filter assembly 40 may be facilitated.

As shown in fig. 2 and 3, according to some embodiments of the present invention, the peripheral wall of the bracket 410 is provided with a plurality of spaced fourth through holes, and each fourth through hole defines a second air outlet channel 411. Therefore, the structure of the second air outlet channel 411 can be facilitated, and the air flow of the filter assembly 40 can be increased by arranging a plurality of second air outlet channels 411.

As shown in fig. 1 to fig. 3, in some embodiments of the present invention, the extending direction of the first wind outlet channel 401 is perpendicular to the extending direction of the second wind outlet channel 411. For example, the second air outlet passage 401 may penetrate the filter 400 in the axial direction of the filter 400, and the second air outlet passage 411 may penetrate the circumferential wall of the bracket 410 in the radial direction of the bracket 410. Therefore, when the airflow flows from the first air outlet channel 401 to the second air outlet channel 411, the rotation of 90 ° is required, so that the inertia of the airflow can be reduced, the dust carried in the airflow due to large mass and inertia can slap on the wall surface of the closed end of the bracket 410 and then flow back to the cyclone separator 20 in a free falling manner, and the airflow can pass through the filter element 400 and flow to the second air outlet channel 411 of the bracket 410, so that the filtering effect of the filter assembly 40 can be improved, and the separation efficiency of the dust-air separation assembly 1 can be improved.

The dust collector comprises the dust-air separation assembly 1 of the dust collector.

According to the vacuum cleaner of the embodiment of the invention, by providing the first baffle 120 and the second baffle 30, when the airflow with dust in the dust cup assembly 10 flows through the first baffle 120 or the second baffle 30, the airflow can continue to flow through the first through hole 121 or the second through hole 300, and after the dust is flapped on the first baffle 120 or the second baffle 30, the first baffle 120 or the second baffle 30 can prevent the dust from continuing to flow along with the airflow, and the dust can fall to the bottom of the dust cup assembly 10 under the action of gravity, so that the stability of dust deposition can be improved, and further the dust-air separation efficiency of the dust-air separation assembly 1 can be improved. In addition, the filter assembly 40 is provided to further filter the airflow passing through the cyclone separator 20, so that the dust-air separation efficiency of the dust-air separation assembly 1 can be further improved.

As shown in fig. 1 to 3, a dirt-air separating assembly 1 of a vacuum cleaner according to an embodiment of the present invention includes a dirt cup assembly 10, a cyclone 20, a first barrier 120, and a second barrier 30.

Specifically, as shown in FIGS. 1-3 and 7, the dirt cup assembly 10 is provided with an air inlet 11 and an air outlet 12. The airflow outside the dirt cup assembly 10 can flow into the dirt cup assembly 10 through the air inlet 11, and the airflow inside the dirt cup assembly 10 can flow out of the dirt cup assembly 10 through the air outlet 12. The cyclonic separator 20 is disposed within the dirt cup assembly 10. It will be appreciated that the cyclonic separator 20 is located within the dirt cup assembly 10 and is connected to the dirt cup assembly 10. The inner space of the cyclone 20 communicates with the gas inlet 11.

As shown in fig. 1 to 3 and 7, the first baffle 120 is disposed on the inner peripheral wall of the dirt cup assembly 10, and the first baffle 120 has a first through hole 121. It will be appreciated that one side of the first baffle 120 is connected to the inner peripheral wall of the dirt cup assembly 10 and the other side of the first baffle 120 extends toward the center of the dirt cup assembly 10. The second baffle 30 is provided on the outer peripheral wall of the cyclone 20, and has a second through hole 300. It will be appreciated that one side of the second baffle 30 is connected to the outer peripheral wall of the cyclone 20 and the other side of the second baffle 30 is remote from the cyclone 20. Here, the hole diameters of the first through hole 121 and the second through hole 300 are not particularly limited, and both the first through hole 121 and the second through hole 300 are suitable for passing the air flow and are not suitable for passing the dust particles.

According to the dust-air separating assembly 1 of the dust collector of the embodiment of the invention, by arranging the first baffle 120 and the second baffle 30, when the airflow with dust in the dust cup assembly 10 flows through the first baffle 120 or the second baffle 30, the airflow can continuously flow through the first through hole 121 or the second through hole 300, and after the dust is flapped on the first baffle 120 or the second baffle 30, the first baffle 120 or the second baffle 30 can prevent the dust from continuously flowing along with the airflow, and the dust can fall to the bottom of the dust cup assembly 10 under the action of gravity, so that the stability of dust deposition can be improved, and the dust-air separating efficiency of the dust-air separating assembly 1 can be improved.

The dust and air separating assembly 1 of the vacuum cleaner according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 9. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.

As shown in fig. 1 to 3, the dirt-air separating assembly 1 of the vacuum cleaner according to the embodiment of the present invention includes a dirt cup assembly 10, a cyclone 20, a first baffle 120, a second baffle 30, and a filter assembly 40.

Specifically, as shown in FIGS. 1-3, the dirt cup assembly 10 includes a dirt cup housing 100 and a dirt cup bottom cover 110. The dust cup housing 100 is formed in a cylindrical shape with both ends open, and the dust cup bottom cover 110 is detachably coupled to the dust cup housing 100. The dirt cup bottom cover 110 is adapted to open or close the open opening at the lower end of the dirt cup housing 100. The open upper end of the dirt cup housing 100 can be configured to form the air outlet 12. The dirt cup housing 100 is provided with an air inlet 11, the air inlet 11 communicating between the interior and exterior of the dirt cup assembly 10. The airflow outside the dirt cup assembly 10 can flow into the dirt cup assembly 10 through the air inlet 11, and the airflow inside the dirt cup assembly 10 can flow out of the dirt cup assembly 10 through the air outlet 12. To improve the sealing of the connection between the dirt cup housing 100 and the dirt cup bottom 110, an annular first sealing ring 50 is provided between the dirt cup housing 100 and the dirt cup bottom 110.

As shown in fig. 1 and 7, the inner peripheral wall of the dust cup housing 100 near one end of the dust cup bottom cover 110 is provided with a plurality of first baffles 30, and the plurality of first baffles 120 are arranged at intervals along the circumferential direction of the dust cup housing 100. The dirt cup housing 100 is provided with each first baffle 120 extending along the axial direction of the dirt cup housing 100. Each first baffle 120 is provided with a plurality of first through holes 121.

As shown in FIG. 1, the cyclonic separator 20 is disposed within the dirt cup assembly 10. The cyclonic separator 20 comprises a primary cyclonic separating assembly 21 and a secondary cyclonic separating assembly 22. The primary cyclonic separating assembly 21 may include a dirt and gas separating section 211, a conical drum 212 and a filter cartridge 214. The secondary cyclonic separating assembly 22 comprises a support portion 220, a cyclone 221 and a sealing portion 225.

As shown in fig. 1 to 3, 8 and 9, the support 220 is annular, the sealing part 225 is formed in a cylindrical shape with two open ends, the cyclone 221 is formed in a cylindrical shape with one open end and one closed end, one open end of the sealing part 225 is connected with the outer annular end face of the support 220, and the open end of the cyclone 221 is connected with the inner annular end face of the support 220. An airflow path 222 is formed in the cyclone 221. at least one of the sealing portion 225 and the supporting portion 220 is connected to an inner circumferential wall of the dirt cup housing 100. A second seal ring 60 is disposed between the sealing portion 225 and the inner peripheral wall of the dirt cup housing 100, the second seal ring 60 is cylindrical, and the second seal ring 60 is sleeved outside the sealing portion 225 and sleeved inside the dirt cup housing 100.

As shown in fig. 1 to 3, 8 and 9, the end surface of the closed end of the cyclone 221 is formed as a tapered surface protruding toward the cyclone 221. The cyclone 221 has a necking portion, the circumference of the outer contour line of the cross section of the necking portion is gradually reduced from the open end to the closed end of the cyclone 221, the necking portion is provided with a plurality of hollow structures 224, and the hollow structures 224 can be arranged at intervals along the circumferential direction of the cyclone 221. The outer peripheral wall of the cyclone 221 is provided with a plurality of third baffles 223, the plurality of third baffles 223 correspond to the plurality of hollow structures 224 one by one, each third baffle 223 is located below the corresponding hollow structure 224, and each third baffle 223 extends along the circumferential direction of the cyclone 221.

As shown in fig. 1 to 3, the dust-gas separating part 211, the cone-shaped cylinder 212, and the filter cartridge 214 are each formed as a penetrating member, i.e., the dust-gas separating part 211, the cone-shaped cylinder 212, and the filter cartridge 214 each have a through passage therethrough. An air inlet 216 is provided at an upper end of the dust-gas separating portion 211, and the air inlet 216 communicates with a space inside the dust-gas separating portion 211. The dust-air separating part 211 is externally sleeved on the cyclone 221, one end of the dust-air separating part 211 is connected with the supporting part 220, and the other end of the dust-air separating part 211 is abutted against the dust cup bottom cover 110. The dust-air separating portion 211 and the dust cup bottom cover 110 have an annular third packing 70.

As shown in fig. 1 to 3, the cone 212 is disposed in the dust-air separating portion 211, and a portion of the cone 212 is sleeved on the throat portion of the cyclone 221. The spatial configuration between the cone 212 and the cyclone 221 forms a second cyclone passage 213. The radius of the passageway of the cone 212 decreases in the direction from the dirt cup housing 100 to the dirt cup bottom cover 110. The cone 212 is spaced from the dirt cup bottom cover 110. The airflow inlet 216 is located above the tapered barrel 212.

As shown in fig. 1 to 5, the dust-gas separating portion 211 is provided with a second baffle 30, the second baffle 30 includes a first segment 31 and a second segment 32, the first segment 31 is annular, the first segment 31 is sleeved on the dust-gas separating portion 211, and the first segment 31 is provided with a second through hole 300. The second through holes 300 may be four and arranged at intervals along the circumferential direction of the first segment 31, and each of the second through holes 300 is formed as an arc-shaped hole and extends along the circumferential direction of the first segment 31. A filter screen 301 is provided in each second through hole 300. The filter screen 301 may be gauze, metal mesh, or filter cotton with micropores.

As shown in fig. 1 to 5, the second section 32 has a cylindrical shape, one end of the second section 32 in the axial direction is connected to the first section 31, and the other end of the second section 32 in the axial direction extends toward the dust cup bottom cover 110. The central axis of the second section 32 is collinear with the central axis of the dirt cup assembly 10.

As shown in fig. 1 to 3, the filter cartridge 214 is externally fitted to the dust-air separating portion 211, and the filter cartridge 214 is interposed between the support portion 220 and the first segment 31. The outer peripheral wall of the filter cartridge 214 and the inner peripheral wall of the dirt cup assembly 10 define a first cyclone passage 210, and the filter cartridge 214 has a plurality of third through-holes 215.

As shown in figures 1-3 and 6,

the filter assembly 40 is disposed downstream of the cyclone separator 20 in the direction of flow of the airflow. In other words, the airflow first flows through the cyclonic separator 20 and then through the filter assembly 40. The filter assembly 40 includes a filter 400 and a bracket 410, the bracket 410 forms a cylinder member with one end open and the other end closed, the support 410 is sleeved in the filter 400, the filter 400 has a first air outlet channel 401, the first air outlet channel 401 is communicated with the inner space of the cyclone separator 20, and the bracket 410 has a second air outlet channel 411 communicated with the first air outlet channel 401. It will be appreciated that the airflow from the cyclone separator 20 may flow from the open end of the support 410 to the first outlet channel 401 of the filter 400, and the second outlet channel 401 may flow to the second outlet channel 411 after passing through the filter 400.

As shown in fig. 1, at least a portion of the filter assembly 40 is located in the dust cup assembly 10, the outer peripheral wall of the bracket 410 is spaced apart from the inner peripheral wall of the dust cup assembly 10 to form a third outlet channel 412, the third outlet channel 412 is communicated with the second outlet channel 411, and the third outlet channel 412 is located downstream of the second outlet channel 411 in the flow direction of the airflow. In other words, the airflow first flows through the second outlet channel 411 and then flows into the third outlet channel 412. As shown in fig. 2 and 3, the circumferential wall of the bracket 410 is provided with a plurality of spaced fourth through holes, and each fourth through hole defines a second air outlet channel 411. As shown in fig. 1 to 3, the second air outlet passage 401 may penetrate the filter 400 in the axial direction of the filter 400, and the second air outlet passage 411 may penetrate the circumferential wall of the bracket 410 in the radial direction of the bracket 410. The arrows in fig. 1 are directed to a schematic view of the airflow through the filter assembly 40. When the airflow flows from the first air outlet channel 401 to the second air outlet channel 411, the airflow needs to turn 90 degrees, so that the inertia of the airflow can be reduced, dust carried in the airflow due to large mass and large inertia can flap the wall surface at the closed end of the support 410 and then flow back to the cyclone separator 20 in a free falling mode, and the airflow can pass through the filter element 400 and flow to the second air outlet channel 411 of the support 410, so that the filtering effect of the filter assembly 40 can be improved, and the separation efficiency of the dust-air separation assembly 1 can be improved. The structure and arrangement of the sealing assembly 40 increase the windward area, reduce the resistance loss in the flow channel, and simultaneously, the residual dust is uniformly distributed in the sealing assembly 40, so that the suction force of the whole machine is reduced slowly.

In addition, it should be noted that in the description of the present invention, the terms "length", "upper", "lower", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Further, "a plurality" means two or more.

The dust-gas separation assembly 1 of the embodiment of the invention can achieve the following beneficial effects: the dust is stably deposited in the dust cup assembly 10, and the dust escaping into the primary cyclone separation assembly 21 is reduced, so that the separation efficiency is improved; the dust is uniformly deposited at the bottom of the dust cup assembly 10, and a certain compression effect is attached, so that the purpose of increasing the capacity is achieved; the requirement that a rib position is arranged at the bottom of the dust cup component in the related technology is avoided, and dust can be poured out smoothly; the windward area of the sealing component 40 at the air outlet is increased, the resistance loss of a runner is reduced, the ash is uniformly distributed on the sealing component 40, and the suction force of the whole machine is more durable in the working process.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A dust and air separating assembly for a vacuum cleaner, comprising:

a dirt cup assembly having an air inlet and an air outlet;

the cyclone separator is arranged in the dust cup component, the inner space of the cyclone separator is communicated with the air inlet, the cyclone separator comprises a primary cyclone separation component and a secondary cyclone separation component, the primary cyclone separation component is positioned in the dust cup component, a first cyclone channel is defined by the primary cyclone separation component and the dust cup component and is communicated with the air inlet, at least part of the secondary cyclone separation component is positioned in the primary cyclone separation component, a second cyclone channel is defined by the secondary cyclone separation component and the primary cyclone separation component, the first cyclone channel is communicated with the second cyclone channel, and an air flow channel is arranged in the secondary cyclone separation component;

the first baffle is arranged on the inner peripheral wall of the dust cup assembly and is provided with a first through hole;

the second baffle is arranged on the outer peripheral wall of the cyclone separator and provided with a second through hole;

the filter assembly is arranged at the downstream of the cyclone separator in the flowing direction of the airflow and comprises a filter element and a support, the support forms a barrel piece with one open end and the other closed end, the filter element is sleeved in the support, the filter element is provided with a first air outlet channel, the first air outlet channel is communicated with the inner space of the cyclone separator, the support is provided with a second air outlet channel communicated with the first air outlet channel, the airflow in the second cyclone channel flows to the first air outlet channel through the airflow channel,

wherein, the first-stage cyclone separation component comprises a dust-gas separation part, a conical cylinder and a filter cylinder, the dust-gas separation part is sleeved outside part of the second-stage cyclone separation component, one end of the dust-gas separation part is connected with the second-stage cyclone separation component, the other end of the dust-gas separation part is opposite to the inner bottom wall of the dust cup component, the second baffle plate is arranged on the outer peripheral wall of the dust-gas separation part, the conical cylinder is arranged in the dust-gas separation part, part of the conical cylinder is sleeved outside part of the second-stage cyclone separation component, the aperture of the conical cylinder is gradually reduced from the open end to the closed end of the dust cup component, the conical cylinder and the second-stage cyclone separation component define the second cyclone channel, the filter cylinder is sleeved outside the dust-gas separation part, and the upper end surface of the filter cylinder is connected with the second-stage cyclone separation component, the lower end face of the filter cartridge is connected with the second baffle, the outer peripheral wall of the filter cartridge and the inner peripheral wall of the dust cup assembly limit the first cyclone channel, the filter cartridge is provided with a third through hole, and the first cyclone channel is communicated with the second cyclone channel through the third through hole.

2. The dust-air separating assembly of a vacuum cleaner as claimed in claim 1, wherein the first baffle is provided in plurality, the first baffles are arranged at intervals along a circumferential direction of the dust cup assembly, and each of the first baffles is provided with a plurality of the first through holes.

3. The dirt-air separating assembly of claim 1 wherein said first baffle is disposed at a lower axial end of said dirt cup assembly.

4. The dust-air separating assembly of a vacuum cleaner according to claim 1, wherein the second shutter includes:

the first section is annular, the first section is sleeved on the cyclone separator, and the first section is provided with the second through hole;

and the second section is cylindrical, and one end of the second section in the axial direction is connected with the radial outer end of the first section.

5. The dust-air separating assembly of a vacuum cleaner as claimed in claim 1, wherein the second through-holes are plural and are arranged at intervals in a circumferential direction of the cyclone separator.

6. The dust-air separating assembly of a vacuum cleaner as claimed in claim 1, wherein a filter screen is provided in the second through hole.

7. The dirt-air separation assembly of a vacuum cleaner according to claim 1, wherein said secondary cyclonic separation assembly includes:

the supporting part is annular and is connected with the dust cup assembly;

the cyclone cylinder is in a cylindrical shape with one open end and the other closed end, the airflow channel is constructed in the cyclone cylinder, the open end of the cyclone cylinder is connected with the supporting part, and the peripheral wall of the cyclone cylinder is provided with a third baffle.

8. The dust-air separating assembly of claim 7, wherein the third baffle is provided in plurality, and the third baffles are arranged at intervals along the circumferential direction of the cyclone.

9. The dust-air separating assembly of claim 1, wherein at least a portion of the filter assembly is located in the dust cup assembly, the outer peripheral wall of the bracket is spaced apart from the inner peripheral wall of the dust cup assembly to form a third outlet channel, the third outlet channel is in communication with the second outlet channel, and the third outlet channel is located downstream of the second outlet channel in the flow direction of the airflow.

10. The dust-air separating assembly of a vacuum cleaner as claimed in claim 1, wherein the peripheral wall of the bracket is provided with a plurality of spaced fourth through holes, each of the fourth through holes defining one of the second outlet channels.

11. The dust-air separating assembly of the vacuum cleaner as claimed in claim 1, wherein the first outlet channel extends in a direction perpendicular to the second outlet channel.

12. A vacuum cleaner, characterized by comprising a dust-air separating assembly of a vacuum cleaner according to any one of claims 1-11.

13. A dust and air separating assembly for a vacuum cleaner, comprising:

the dust cup assembly is provided with an air inlet and an air outlet;

the cyclone separator is arranged in the dust cup assembly, the inner space of the cyclone separator is communicated with the air inlet, the cyclone separator comprises a primary cyclone separation component and a secondary cyclone separation component, the primary cyclone separation component is positioned in the dust cup component, the primary cyclone separation component and the dust cup component define a first cyclone channel, the first cyclone channel is communicated with the air inlet, at least part of the secondary cyclone separation component is positioned in the primary cyclone separation component, and the secondary cyclone separating assembly and the primary cyclone separating assembly define a second cyclone passage, the first cyclone channel is communicated with the second cyclone channel, and an airflow channel is arranged in the secondary cyclone separation assembly and is positioned at the downstream of the second cyclone channel in the airflow direction;

the first baffle is arranged on the inner peripheral wall of the dust cup assembly and is provided with a first through hole;

a second baffle plate arranged on the outer peripheral wall of the cyclone separator and provided with a second through hole,

wherein, the first-stage cyclone separation component comprises a dust-gas separation part, a conical cylinder and a filter cylinder, the dust-gas separation part is sleeved outside part of the second-stage cyclone separation component, one end of the dust-gas separation part is connected with the second-stage cyclone separation component, the other end of the dust-gas separation part is opposite to the inner bottom wall of the dust cup component, the second baffle plate is arranged on the outer peripheral wall of the dust-gas separation part, the conical cylinder is arranged in the dust-gas separation part, part of the conical cylinder is sleeved outside part of the second-stage cyclone separation component, the aperture of the conical cylinder is gradually reduced from the open end to the closed end of the dust cup component, the conical cylinder and the second-stage cyclone separation component define the second cyclone channel, the filter cylinder is sleeved outside the dust-gas separation part, and the upper end surface of the filter cylinder is connected with the second-stage cyclone separation component, the lower end face of the filter cartridge is connected with the second baffle, the outer peripheral wall of the filter cartridge and the inner peripheral wall of the dust cup assembly limit the first cyclone channel, the filter cartridge is provided with a third through hole, and the first cyclone channel is communicated with the second cyclone channel through the third through hole.

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