CN215507286U - Dust separation module and cleaning machine - Google Patents

Abstract

The utility model relates to a dust separation module and a cleaning machine, wherein a flow guide piece is arranged in a containing cavity, an electrostatic component is arranged in the containing cavity and is arranged at the downstream of the flow guide piece along the flowing direction of a fluid, the fluid can sequentially flow through a first flow passage and a second flow passage in a shell through the flow guide piece arranged in the containing cavity, the first flow passage extends along the axial direction of the shell, and the second flow passage is arranged at the periphery of the first flow passage; in addition, through arranging two polar plates in the static subassembly of water conservancy diversion spare low reaches, can carry out secondary filter to the fluid that flows out from the water conservancy diversion spare, finally make the separation of fluid furthest, and then ensure that the top fan can not inhale dust debris, ensure its life.

Description

Dust separation module and cleaning machine

Technical Field

The utility model belongs to the field of household washing and cleaning, and particularly relates to a dust separation module and a cleaning machine.

Background

Dust collectors and floor sweepers are common floor cleaning equipment, and dust and sundries on the floor are sucked into a dust collecting box through negative pressure formed by a fan, so that the floor is cleaned.

Taking an existing dust collector as an example, a separate dust separation module is arranged at the upstream of a fan to filter sundry and dust, for example, a novel Chinese patent with the patent number of CN202020098772.4 discloses a dust cup assembly of the dust collector and a dust collector with the dust cup assembly, wherein an ash pressing piece is arranged around the outer part of a coarse ash separator of the dust collector, and the dust collector can guide the flow of air flow. Like this air current and dust can flow towards thick grey separator along pressing grey spare, and during thick grey separator of flowing through, flexible material such as hair, fibre can twine the surface at thick grey separator, and the axial reciprocating motion that presses grey spare to follow thick grey separator this moment cleans thick grey separator with the axial to the dust removal ware to can be convenient for the user clearance operation, improve the operating efficiency and the life of dust catcher.

Although the similar separation structure can realize the separation of the impurities, in the use scene, the impurities are often mixed in the liquid, the existing separation and filtration structure can only deal with the dry environment, the separation and filtration of the treated air and the dry dirt cannot deal with the wet environment, and when the separated dirt carries water, the water can not only permeate the filter screen to hurt the motor and the circuit at the rear end, but also pollute the filter screen, so that the filtration capacity of the water is greatly reduced. For this reason, chinese utility model application with patent number CN202010556062.6 discloses a "dust catcher", this dust catcher has increased whirlwind formula aqueous vapor separation structure in inside, through the circuitous a plurality of cavities that set up, has improved the effect of steam separation, but still with the regional intercommunication of rear motor of a plurality of cavities, this will lead to under the too much condition of water, do not seal partial water and still can enter into the rear, lead to foretell problem.

In addition, after the filter screen used repeatedly many times, have a large amount of filths attached to and block up the filtration pore on the filter screen, lead to the filter capacity of filter screen and the suction greatly reduced of host computer, shortened the life of filter screen, reduced the efficiency of dust catcher, in order to keep the filter capacity and the suction of dust catcher to last the dynamics, need change the filter screen or pull down the filter screen and wash, cause the cost higher.

Accordingly, there is a need for improvements to existing dust separation modules.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a dust separation module capable of performing secondary separation of dust and impurities, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a dust separation module with a polar plate of an electrostatic component charged when a fan is in operation and uncharged when the fan is turned off, aiming at the current situation of the prior art.

A third technical problem to be solved by the present invention is to provide a dust separation module that forms a vortex in a cyclone to effectively separate dust from fluid, in view of the current state of the prior art.

A fourth technical problem to be solved by the present invention is to provide a dust separation module that effectively prevents liquid from leaking, in view of the current situation of the prior art.

A fifth technical problem to be solved by the present invention is to provide a cleaning machine using the above dust separating module in view of the current state of the art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the dust separation module comprises:

the shell is cylindrical, a cavity is formed in the shell, the shell is provided with an inlet and an outlet, and the inlet and the outlet are communicated with the cavity;

also includes:

the flow guide piece is arranged in the containing cavity and is used for guiding the fluid from the inlet of the shell to the outlet; and

the electrostatic assembly is arranged in the containing cavity and arranged at the downstream of the flow guide piece along the flowing direction of the fluid, and comprises a first polar plate and a second polar plate which are respectively provided with different polarities and are arranged at intervals, and an ionization region is formed between the first polar plate and the second polar plate.

In order to further ensure the conduction of the airflow, preferably, the inlet end of the flow guide member has a first flow passage communicated with the inlet and extending along the axial direction of the housing, a space is left between the outer wall of the flow guide member and the inner wall of the cavity, a second flow passage is further formed at the periphery of the first flow passage, the second flow passage is communicated with the first flow passage through a first flow guide port formed in the outer wall of the flow guide member, and the outlet end of the flow guide member has an exhaust port communicated with the outlet.

In order to further solve the second technical problem, the utility model adopts the following technical scheme: the static component can adopt an independent power supply and can also adopt a static charging mode, but preferably, an installation interval is formed between the flow guide piece and the outlet of the shell, the static component is arranged in the installation interval and is opposite to the air outlet, and the first polar plate and the second polar plate are both electrically connected with the power supply of the fan; conventional electrostatic absorption needs etc. dust to build up and collect up the unified clearance of certain degree, because the time is very long for, make the dust be difficult to clear away, and need detach static earlier, could handle the dust on the corresponding filter screen, and still need charge to the filter screen after removing dust, it is very loaded down with trivial details, and two polar plates and fan power electric connection's design form in the static subassembly, make the filter screen along with the start-up and the shut-down of fan, switch between electrified and uncharged at any time, when two polar plates are uncharged, dust on it will drop automatically, need not to clean the polar plate alone, it is very convenient.

The flow guide piece can be different structures, preferably, the flow guide piece comprises an installation seat and a partition plate which is arranged on a bottom plate of the installation seat and extends towards the inlet, the cross section of the partition plate is basically in a U-shaped structure with two ends bent towards the same side, and a lateral notch of the partition plate forms the first flow guide opening.

As an improvement, the partition plate is contracted at the U-shaped notch, the end part of the partition plate is provided with a flanging extending outwards, and the flanging and the partition plate are in arc transition, so that the closing-in design of the partition plate enables fluid to achieve an accelerating effect when passing through the first flow guide port, on one hand, the loss of power of the fluid during flow channel switching is compensated, on the other hand, the fluid and impurities in the fluid generate speed difference, and separation is facilitated.

In order to further ensure the separation of dust in the fluid, preferably, the flow guide element further comprises a cyclone cover and at least two cyclone elements, and each cyclone element is arranged on the mounting seat in a penetrating way and extends in the same direction with the partition plate; the cyclone cover is installed on the installation seat, at least two air outlets are distributed in the circumferential direction of the cyclone cover and correspond to the cyclone pieces, each cyclone piece is hollow inside, a separation cavity is formed at a position adjacent to the air outlets, a wall plate of the cyclone cover forms a top wall corresponding to the separation cavity, the inlet end of the separation cavity is communicated with the second flow channel, and the outlet end of the separation cavity is communicated with the air outlets.

In order to further solve the third technical problem, the utility model adopts the following technical scheme: the cyclone pieces are basically in a conical structure, the caliber of each cyclone piece is gradually increased from the inlet to the outlet, each cyclone piece is arranged on the periphery of the partition board in a surrounding mode along the circumferential direction, gaps are reserved at the ends, adjacent to the outlets, of the two adjacent cyclone pieces to form a second flow guide port, the inlet end of the separation cavity is communicated with the second flow channel through the second flow guide port, and therefore due to the design of the cyclone pieces, fluid can spirally rise along the conical inner cavity of the cyclone pieces when passing through the cyclone pieces and can be exhausted from the air outlet in an accelerating mode.

In order to further enhance the primary separation effect, preferably, the dust separation module further includes a filter element for intercepting impurities flowing along with the fluid to the second diversion port, and the filter element is in a net shape, is arranged on the flow path of the fluid in the cavity and is arranged on the periphery of the cyclone element.

In order to facilitate the connection between the first polar plate and the fan power supply, preferably, the electrostatic assembly further includes an electrical contact pin and an electrical contact piece electrically connected to the dust collector power supply, the electrical contact pin is connected to the electrical contact piece, and the upper surface and the lower surface of the electrical contact pin are respectively in contact with the first polar plate and the second polar plate.

Preferably, the first polar plate is made of electrostatic cotton, and the second polar plate is made of metal conductive cotton.

In order to further solve the fourth technical problem, the technical scheme adopted by the utility model is as follows: the dust separation module further comprises a leakage prevention structure for preventing liquid from leaking out of the outlet, the leakage prevention structure is arranged in the installation section and is arranged at the downstream of the electrostatic component in the flowing direction of the fluid.

The leakage prevention can be realized by adopting different structures, preferably, the leakage prevention structure comprises a sealing ring, a PTFE filter screen with a leakage prevention coating and an end cover for sealing the PTFE filter screen at the outlet, the caliber of the end cover is smaller than that of the outlet, the sealing ring is sleeved on the peripheral wall of the end cover and is positioned between the end cover and the inner wall of the shell.

In order to achieve the assembly of the deflector, preferably, the dust separation module further includes a connection structure for sealing the inlet, the connection structure including:

the cover plate is covered at the inlet, and the center part of the cover plate is provided with a through hole;

the first connecting seat is arranged in the containing cavity and supported between the flow guide piece and the cover plate, and the connecting end of the first connecting seat penetrates through the through hole;

and the second connecting seat is arranged on the outer side of the cover plate and is connected with the first connecting seat in a buckling manner.

Specifically, the connecting end of the first connecting seat is provided with a clamping part which is arranged in the through hole in a penetrating manner and at least partially leaks out of the through hole, and the second connecting seat is provided with a clamping ring matched with the clamping part at a corresponding position.

In order to facilitate cleaning of dust and impurities in the housing, preferably, the connecting structure further includes a sealing cover, one side of the sealing cover is rotatably connected to the cover plate through a rotating shaft, so that the other side of the sealing cover swings up and down relative to the cover plate, and the through hole is opened or closed.

In order to further facilitate the opening of the sealing cover, preferably, the housing is further provided with a pressing lock catch for locking or loosening the second end of the sealing cover, the pressing lock catch extends along the length direction of the housing, laterally extending connecting shafts are arranged at two sides of the pressing lock catch, which are adjacent to the middle part of the housing, a positioning seat is arranged on the outer wall of the housing, the pressing lock catch is mounted on the positioning seat, the connecting shafts at two sides of the pressing lock catch are respectively and correspondingly and rotatably connected in shaft holes in the side walls of the positioning seat, and the end part of the pressing lock catch, which is adjacent to the inlet, can be close to or far away from the corresponding position of the sealing cover so as to correspondingly lock or loosen the sealing cover.

Specifically, the positioning seat is further provided with an elastic piece, the elastic piece acts on the end part of the pressing lock catch, which is adjacent to the outlet, and the end part of the pressing lock catch, which is adjacent to the inlet, always has a tendency of being close to the sealing cover.

In order to further solve the fifth technical problem, the technical scheme adopted by the utility model is as follows: a cleaning machine using the dust separation module further comprises a fan and a brush head module, the dust separation module is located between the brush head module and the fan along an airflow flow path, an inlet end of the dust separation module is an inlet of the shell, an outlet end of the dust separation module is an outlet of the shell, the inlet is in fluid communication with an outlet end of the brush head module, and the outlet is in fluid communication with an inlet of the fan.

Preferably, the cleaning machine is a vacuum cleaner or a sweeping robot.

Compared with the prior art, the utility model has the advantages that: the dust separation module can enable fluid to sequentially flow through the first flow channel and the second flow channel in the shell through the flow guide piece arranged in the containing cavity, the first flow channel axially extends along the shell, and the second flow channel is arranged on the periphery of the first flow channel, so that the flow of the fluid has a sufficiently complex flow form due to the position design of the two flow channels, and when the fluid flows from the first flow channel to the second flow channel, sundries and dust carried by the fluid can impact the wall surface of the flow guide piece in the flow channel switching process, so that primary separation of the sundries and the dust is formed; in addition, through arranging first polar plate and second polar plate in the static subassembly of water conservancy diversion spare low reaches, can carry out secondary filter to the fluid that flows out from the water conservancy diversion spare, finally make the separation of fluid furthest, and then guarantee that the fan above can not inhale dust debris, guarantee its life.

Drawings

FIG. 1 is a schematic view of the overall structure of a dust separation module according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a schematic view of a first angle of the housing according to an embodiment of the present invention;

FIG. 4 is a schematic view of a second angle of the housing in an embodiment of the present invention;

FIG. 5 is an overall cross-sectional view of a dust separation module in an embodiment of the present invention;

FIG. 6 is an exploded view of the dust separation module according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of a baffle member in an embodiment of the present invention;

FIG. 8 is a schematic view of the structure of FIG. 7 at another angle;

FIG. 9 is a schematic view of the engagement of the cyclone cover with the cyclone piece;

FIG. 10 is a schematic structural view of an electrostatic assembly;

fig. 11 is a schematic view of the overall structure of the cleaning machine.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 11, which are one preferred embodiment of the present invention, in this embodiment, the dust separation module includes a housing 4, a deflector 2, and an electrostatic assembly 3. The dust separating module in this embodiment is not limited to be used in a vacuum cleaner, but may also be applied to a cleaning device such as a sweeper, and for convenience of explanation, the vacuum cleaner is taken as an example below.

The cleaning machine with the dust separation module further comprises a fan 02 and a brush head module 01, the dust separation module 03 is located between the brush head module 01 and the fan 02 along an airflow flow path, an inlet end of the dust separation module 03 is the inlet 400 of the housing 4, an outlet end of the dust separation module 03 is the outlet 401 of the housing 4, the inlet 400 is in fluid communication with an outlet end of the brush head module 01, and the outlet 401 is in fluid communication with an inlet of the fan 02.

In this embodiment, the flow guide member 2 is disposed in the cavity 41, the inlet end of the flow guide member 2 has a first flow channel 2a communicated with the inlet 400 and extending axially along the housing 4, a gap is left between an outer wall of the flow guide member 2 and an inner wall of the cavity 41, a second flow channel 2b is further formed at a periphery of the first flow channel 2a, the second flow channel 2b is communicated with the first flow channel 2a through a first flow guide opening 2c formed in the outer wall of the flow guide member 2, and an outlet end of the flow guide member 2 has an exhaust opening 20 communicated with the outlet 401.

The electrostatic assembly 3 may be disposed at the upstream or downstream of the flow guiding element 2, in this embodiment, an installation section 42 is formed between the flow guiding element 2 and the outlet 401 of the casing 4, the electrostatic assembly 3 is disposed in the installation section 42 and is disposed opposite to the air outlet 20, and the first pole plate 31 and the second pole plate 32 are both electrically connected to the fan power supply, and the dust is collected to a certain extent for uniform cleaning, and the dust is difficult to be removed due to long time, and the dust on the corresponding filter screen can be processed by first removing the static electricity, and the filter screen needs to be charged after dust removal, which is cumbersome, and the design form of electrically connecting the two pole plates in the electrostatic assembly 3 to the fan power supply makes the filter screen stop and start along with the fan, and switch between charged and discharged at any time, and when the two pole plates are not charged, the dust on the two pole plates will automatically fall off, the pole plate does not need to be cleaned independently, and the cleaning is very convenient.

The flow guide part 2 comprises an installation seat 21 and a partition plate 22 which is arranged on a bottom plate of the installation seat 21 and extends towards the inlet 400, the cross section of the partition plate 22 is basically in a U-shaped structure with two ends bent towards the same side, a first flow guide opening 2c is formed by a lateral notch of the partition plate, the partition plate 22 shrinks at the U-shaped notch, a flanging 23 extending outwards is arranged at the end part of the partition plate 22, and an arc transition is formed between the flanging 23 and the partition plate 22. In addition, the flow guide member 2 further comprises a cyclone cover 25 and at least two cyclone members 24, and each cyclone member 24 is arranged on the mounting base 21 in a penetrating manner and extends in the same direction with the partition plate 22; the cyclone cover 25 is installed on the installation seat 21, at least two air outlets 20 are distributed on the circumference of the cyclone cover 25 corresponding to the cyclone pieces 24, each cyclone piece 24 is hollow and forms a separation cavity 2d at a position adjacent to the air outlet 20, the wall plate of the cyclone cover 25 forms a top wall corresponding to the separation cavity 2d, the inlet end of the separation cavity 2d is communicated with the second flow passage 2b, the outlet end of the separation cavity is communicated with the air outlets 20, the cyclone pieces 24 are basically in a conical structure, the caliber of the cyclone pieces gradually increases from the inlet 400 to the outlet 401, each cyclone piece 24 is circumferentially arranged around the periphery of the partition plate 22, a gap is left at the end adjacent to the outlet 401 of two adjacent cyclone pieces 24 to form a second flow guide port 2e, and the inlet end of the separation cavity 2d is communicated with the second flow passage 2b through the second flow guide port 2 e.

In order to further enhance the primary separation effect, the dust separation module further includes a filtering member 4a for intercepting the impurities flowing along the fluid toward the second flow guiding port 2e, wherein the filtering member 4a is net-shaped, is arranged on the flow path of the fluid in the cavity 41 and is arranged at the periphery of the cyclone 24.

In this embodiment, the electrostatic component 3 further includes an electrical contact pin 33 and an electrical contact piece 34 electrically connected to the power source of the vacuum cleaner, the electrical contact pin 33 is connected to the electrical contact piece 34, and the upper and lower surfaces thereof are respectively in contact with the first pole plate 31 and the second pole plate 32. The two electrode plates can be selected to have different structures according to actual needs, and in this embodiment, the first electrode plate 31 is made of electrostatic cotton, and the second electrode plate 32 is made of metal conductive cotton.

Furthermore, in order to further ensure that the dirty water or other liquid drawn by the cleaner does not flow with the airflow to the fan and cause a short circuit to the fan, the dust separation module further comprises a leakage preventing structure 5 for preventing dirty water from seeping out of the outlet 401, the leakage preventing structure 5 being provided in the mounting section 42 and being arranged downstream of the electrostatic assembly 3 in the fluid flow direction. The leakproof structure 5 comprises a sealing ring 51, a PTFE filter screen 52 with a leakproof coating and an end cover 53 for sealing the PTFE filter screen 52 at the outlet, wherein the caliber of the end cover 53 is smaller than that of the outlet, and the sealing ring 51 is sleeved on the peripheral wall of the end cover 53 and is positioned between the end cover 53 and the inner wall of the shell 4.

In order to conveniently process and separate the remaining impurities and dust, the dust separation module further comprises a connecting structure 6 for sealing the inlet, the connecting structure 6 comprises a cover plate 61, a first connecting seat 63 and a second connecting seat 64, wherein the cover plate 61 covers the inlet 400, a through hole 61a is formed in the center of the cover plate, the first connecting seat 63 is arranged in the accommodating cavity and supported between the flow guide piece 2 and the cover plate 61, the connecting end of the first connecting seat 63 penetrates through the through hole 61a, and the second connecting seat 64 is arranged on the outer side of the cover plate 61 and is connected with the first connecting seat 63 in a buckling mode. The connecting end of the first connecting seat 63 has a fastening portion penetrating through the through hole 61a and at least partially leaking out of the through hole 61a, and the second connecting seat 64 has a snap ring at a corresponding position and matching with the fastening portion. In addition, the connecting structure 6 in this embodiment further includes a sealing cover 62, one side of the sealing cover 62 is rotatably connected to the cover 61 through a rotating shaft 68, so that the other side of the sealing cover 62 swings up and down relative to the cover 61, thereby opening or closing the through hole 61 a. The shell 4 is further provided with a pressing lock catch 67 for locking or unlocking the second end of the sealing cover 62, the pressing lock catch 67 extends along the length direction of the shell, the two sides of the pressing lock catch 67 are respectively provided with a connecting shaft extending laterally at a position close to the middle part, the outer wall of the shell 4 is provided with a positioning seat 65, the pressing lock catch 67 is installed on the positioning seat 65, the connecting shafts at the two sides of the pressing lock catch 67 are respectively and correspondingly and rotatably connected in shaft holes in the side wall of the positioning seat 65, the end part of the pressing lock catch 67 close to the inlet 400 can be close to or far away from the corresponding position of the sealing cover 62 so as to correspondingly lock or unlock the sealing cover 62, the positioning seat 65 is further provided with an elastic piece 66, the elastic piece 66 acts on the end part of the pressing lock catch 67 close to the outlet 401, and the end part of the pressing lock catch 67 close to the inlet 400 always has a tendency close to the sealing cover 62.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Also, directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like, may be used in the description and claims to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are determined based on the example orientations shown in the figures. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims (19)

1. A dust separation module, which comprises

The shell (4) is cylindrical, a cavity (41) is formed in the shell, the shell (4) is provided with an inlet (400) and an outlet (401), and the inlet (400) and the outlet (401) are communicated with the cavity (41);

it is characterized by also comprising:

the flow guide piece (2) is arranged in the cavity (41) and is used for guiding the fluid from an inlet (400) to an outlet (401) of the shell (4); and

the electrostatic component (3) is arranged in the accommodating cavity (41) and is arranged at the downstream of the flow guide part (2) along the flowing direction of the fluid, the electrostatic component comprises a first polar plate (31) and a second polar plate (32) which have different polarities and are arranged at intervals, and an ionization region is formed between the first polar plate (31) and the second polar plate (32).

2. The dust separation module of claim 1, wherein: the inlet end of the flow guide piece (2) is provided with a first flow channel (2a) which is communicated with the inlet (400) and axially extends along the shell (4), an interval is reserved between the outer wall of the flow guide piece (2) and the inner wall of the accommodating cavity (41), a second flow channel (2b) is formed on the periphery of the first flow channel (2a), the second flow channel (2b) is communicated with the first flow channel (2a) through a first flow guide opening (2c) formed in the outer wall of the flow guide piece (2), and the outlet end of the flow guide piece (2) is provided with an air outlet (20) communicated with the outlet (401).

3. The dust separation module of claim 2, wherein: an installation section (42) is formed between the flow guide piece (2) and an outlet (401) of the shell (4), the static component (3) is arranged in the installation section (42) and is opposite to the air outlet (20), and the first polar plate (31) and the second polar plate (32) are electrically connected with a fan power supply.

4. The dust separation module of claim 3, wherein: the flow guide piece (2) comprises an installation seat (21) and a partition plate (22) which is arranged on a bottom plate of the installation seat (21) and extends towards the inlet (400), the cross section of the partition plate (22) is basically in a U-shaped structure with two ends bent towards the same side, and a lateral gap of the partition plate forms the first flow guide port (2 c).

5. The dust separation module of claim 4, wherein: the baffle plate (22) is contracted at the U-shaped gap, the end part of the baffle plate (22) is provided with a flanging (23) extending outwards, and the flanging (23) and the baffle plate (22) are in arc transition.

6. The dust separation module of claim 5, wherein: the flow guide piece (2) further comprises a cyclone cover (25) and at least two cyclone pieces (24), and each cyclone piece (24) penetrates through the mounting base (21) and extends in the same direction with the partition plate (22); the cyclone cover (25) is installed on the installation seat (21), the air outlet (20) is provided with at least two cyclone pieces (24) which are distributed in the circumferential direction of the cyclone cover (25) correspondingly, each cyclone piece (24) is hollow inside, a separation cavity (2d) is formed at the position adjacent to the air outlet (20), the wall plate of the cyclone cover (25) forms the top wall of the corresponding separation cavity (2d), the inlet end of the separation cavity (2d) is communicated with the second flow channel (2b), and the outlet end of the separation cavity is communicated with the air outlet (20).

7. The dust separation module of claim 6, wherein: the cyclone pieces (24) are basically in a conical structure, the caliber of each cyclone piece (24) is gradually increased from an inlet (400) to an outlet (401), each cyclone piece (24) is arranged on the periphery of the partition board (22) in a surrounding mode along the circumferential direction, a gap is reserved at the end, close to the outlet (401), of each two adjacent cyclone pieces (24) to form a second flow guide port (2e), and the inlet end of the separation cavity (2d) is communicated with the second flow channel (2b) through the second flow guide port (2 e).

8. The dust separation module of claim 6, wherein: the filter element is characterized by further comprising a filter element (4a) used for intercepting sundries flowing to the second diversion port (2e) along with the fluid, wherein the filter element (4a) is in a net shape, is arranged on the flow path of the fluid in the containing cavity (41), and is arranged on the periphery of the cyclone element (24).

9. The dust separation module of claim 1, wherein: the electrostatic component (3) further comprises an electric contact pin (33) and an electric contact piece (34) electrically connected with a power supply of the dust collector, wherein the electric contact pin (33) is connected to the electric contact piece (34), and the upper surface and the lower surface of the electric contact pin are respectively contacted with the first polar plate (31) and the second polar plate (32).

10. The dust separation module of claim 9, wherein: the first polar plate (31) is made of electrostatic cotton, and the second polar plate (32) is made of metal conductive cotton.

11. The dust separation module according to any one of claims 1 to 10, wherein: and a leakage-preventing structure (5) for preventing the leakage of the contaminated water from the outlet (401), the leakage-preventing structure (5) being arranged in the mounting region (42) and downstream of the electrostatic module (3) in the direction of fluid flow.

12. The dust separation module of claim 11, wherein: leak protection structure (5) include sealing washer (51), have PTFE filter screen (52) of leak protection coating and be used for sealing up end cover (53) in the exit with PTFE filter screen (52), the bore of end cover (53) is less than the bore of exit, sealing washer (51) cover is established on the periphery wall of end cover (53), and be located end cover (53) with between casing (4) inner wall.

13. A dust separation module according to any one of claims 1-10, further comprising a connection structure (6) for sealing the inlet (400), said connection structure (6) comprising:

the cover plate (61) is covered on the inlet (400), and the center part of the cover plate is provided with a through hole (61 a);

the first connecting seat (63) is arranged in the containing cavity and supported between the flow guide piece (2) and the cover plate (61), and the connecting end of the first connecting seat (63) penetrates through the through hole (61 a);

and the second connecting seat (64) is arranged on the outer side of the cover plate (61) and is in snap connection with the first connecting seat (63).

14. The dust separation module of claim 13, wherein: the connecting end of the first connecting seat (63) is provided with a clamping part which is arranged in the through hole (61a) in a penetrating way and at least partially leaks out of the through hole (61a), and the second connecting seat (64) is provided with a clamping ring matched with the clamping part at a corresponding position.

15. The dust separation module of claim 14, wherein: the connecting structure (6) further comprises a sealing cover (62), one side of the sealing cover (62) is rotatably connected to the cover plate (61) through a rotating shaft (68), so that the other side of the sealing cover swings up and down relative to the cover plate (61), and the through hole (61a) is opened or closed.

16. The dust separation module of claim 15, wherein: the improved sealing cover is characterized in that a pressing lock catch (67) used for locking or loosening a second end of the sealing cover (62) is further arranged on the shell (4), the pressing lock catch (67) extends along the length direction of the shell, laterally extending connecting shafts are arranged on two sides of the pressing lock catch (67) at positions close to the middle of the shell, a positioning seat (65) is arranged on the outer wall of the shell (4), the pressing lock catch (67) is installed on the positioning seat (65), the connecting shafts on the two sides of the pressing lock catch are respectively and correspondingly and rotatably connected in shaft holes in the side wall of the positioning seat (65), and the end portion, close to the inlet (400), of the pressing lock catch (67) can be close to or far away from the corresponding position of the sealing cover (62) so as to correspondingly lock or loosen the sealing cover (62).

17. The dust separation module of claim 16, wherein: an elastic piece (66) is further arranged on the positioning seat (65), the elastic piece (66) acts on the end part of the pressing lock catch (67) adjacent to the outlet (401), and the end part of the pressing lock catch (67) adjacent to the inlet (400) always has the tendency of being close to the sealing cover (62).

18. A cleaning machine having the dust separation module of any one of claims 1 to 17, characterized in that: the toothbrush further comprises a fan (02) and a brush head module (01), the dust separation module (03) is located between the brush head module (01) and the fan (02) along an airflow flow path, an inlet end of the dust separation module (03) is an inlet (400) of the shell (4), an outlet end of the dust separation module (03) is an outlet (401) of the shell (4), the inlet (400) is in fluid communication with an outlet end of the brush head module (01), and the outlet (401) is in fluid communication with an inlet of the fan (02).

19. The cleaning machine of claim 18, wherein: the cleaning machine is a dust collector or a sweeping robot.

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