CN114794964A

CN114794964A - Surface cleaning apparatus with dirt cup assembly

Info

Publication number: CN114794964A
Application number: CN202210642129.7A
Authority: CN
Inventors: 戴逢焱
Original assignee: Suzhou Simple Youwei Technology Co Ltd
Current assignee: Suzhou Simple Youwei Technology Co Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-07-29
Anticipated expiration: 2042-06-07
Also published as: CN116350118A; CN114794964B

Abstract

The invention discloses surface cleaning equipment with a dust cup assembly, wherein the dust cup assembly comprises a cyclone separation chamber and a dust collection chamber, and the cyclone separation chamber is arranged on the outer side of the dust collection chamber and is communicated with the dust collection chamber through an ash throwing port; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter the air flow before being discharged from the air outlet. A baffle plate extending in the dust collecting chamber is arranged at the dust throwing port to prevent part of dirt in the dust collecting chamber from being pumped back into the cyclone separation chamber; one side of the baffle plate facing the bottom of the dust collecting chamber is provided with at least one bulge protruding towards the direction of the bottom of the dust collecting chamber. Set up the baffle in the department of getting rid of the ash mouth, set up the arch in the below of baffle, can prevent effectively that hair from being pumbacked to whirlwind separating chamber.

Description

Surface cleaning apparatus with dirt cup assembly

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to surface cleaning equipment with a dust cup assembly.

Background

Cyclone separators generally come in two forms, one of which is an integral type, i.e. the cyclone and the collecting chamber are both located in one chamber. The other type is a split type, namely the cyclone separation chamber and the dust collection chamber are separately arranged and are communicated through an ash throwing port, and dirt separated from the cyclone separation chamber enters the dust collection chamber through the ash throwing port.

The advantage of using a split cyclone is that the dust can be collected separately and not sucked into the cyclone chamber repeatedly, but the hair is lighter and can be easily sucked back into the cyclone chamber due to the hair that often appears during routine cleaning.

Disclosure of Invention

Aiming at the defects in the technology, the invention provides the surface cleaning equipment with the dust cup assembly, and the dust throwing port of the dust cup assembly is provided with the bulge, so that the hairs can be effectively prevented from being pumped back into the cyclone separation.

In a first aspect, the present disclosure provides a surface cleaning apparatus having a dirt cup assembly, the dirt cup assembly including a cyclonic separation chamber and a dirt collection chamber, the cyclonic separation chamber being disposed outside of the dirt collection chamber and communicating with the dirt collection chamber through an ash slinger; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter the airflow before the airflow is discharged from the air outlet;

wherein, the dust throwing port is provided with a baffle plate extending in the dust collecting chamber to prevent part of dirt in the dust collecting chamber from being pumped back into the cyclone separation chamber; one side of the baffle plate facing the bottom of the dust collecting chamber is provided with at least one bulge protruding towards the direction of the bottom of the dust collecting chamber.

Optionally, the number of the protrusions is plural.

Optionally, at least one of the protrusions is arranged at one end of the baffle plate far away from the ash throwing port.

Optionally, the dirt cup assembly further comprises a mounting bracket for supporting the filter structure, the filter structure including a first end proximate the air outlet and a second end distal the air outlet, the second end rotatably mounted to the mounting bracket such that the filter structure is rotatable relative to the mounting bracket.

Optionally, the filtering structure includes a filtering frame, the filtering frame is disposed on the receiving groove, at least one bearing is disposed in the receiving groove, and the filtering frame is rotatably mounted on the mounting frame through the at least one bearing.

Optionally, the filter structure includes a filter screen and a guide rib disposed outside the filter screen, and the guide rib protrudes from an outer surface formed by the filter screen.

Optionally, the filter structure comprises a filter screen, and at least part of projection of the filter screen in a direction perpendicular to the rotation axis of the filter structure falls into an area where the ash slinger is located.

Optionally, the baffle is provided with at least one through hole penetrating through the baffle in the thickness direction.

Optionally, a fan is disposed in the filtering structure, the fan rotates by the airflow flowing out of the air outlet, and the fan can drive the filtering structure to rotate.

Optionally, the fan includes a plurality of fan blades, the fan blades include a proximal end close to the rotation axis and a distal end far from the rotation axis in the radial direction, and the proximal ends of the plurality of fan blades are suspended.

In a second aspect, the present invention provides a vacuum cleaner comprising a dirt cup assembly and a fan assembly for generating a suction airstream, the dirt cup assembly for separating dirt-laden airstream from dirt-laden airstream; the dust cup assembly comprises a cyclone separating chamber and a dust collecting chamber, and the cyclone separating chamber is arranged outside the dust collecting chamber and is communicated with the dust collecting chamber through an ash throwing port;

the dust cup assembly further comprises an air outlet and a filter structure disposed at the air outlet, the filter structure being rotatably disposed at the air outlet to filter the airflow before exiting the air outlet;

the filter structure comprises a filter screen, and the filter screen faces to at least part of projection of the position of the ash throwing port and falls into the area of the ash throwing port along the direction perpendicular to the rotation axis of the filter structure.

Optionally, the filter structure includes a first end close to the air outlet and a second end far away from the air outlet, the direction along which the rotation axis extends is a height direction, the first end is higher than the second end, and a lowest point of the second end in the height direction is higher than a bottom of the ash slinger and lower than a top of the ash slinger.

Optionally, the filter structure comprises a first end close to the air outlet and a second end far away from the air outlet, the direction along which the rotation axis extends is a height direction, the first end is higher than the second end, and the lowest point of the second end along the height direction is substantially equal to the bottom of the ash dumping port.

Optionally, a partial projection of the filter screen towards the position of the ash slinger falls into the area of the ash slinger along a direction perpendicular to the rotation axis of the filter structure.

Optionally, a baffle extending within the dirt collection chamber is provided at the ash slinger to block a portion of dirt within the dirt collection chamber from being drawn back into the cyclonic separation chamber.

Optionally, be provided with the fan in the filtration, the fan is through flowing out the air current drive of gas outlet and rotation, the fan can drive the filtration is rotatory, the fan includes a plurality of flabellums, the flabellum includes along radial direction near axle head near the rotation axis and keeps away from the distal end of rotation axis, and is a plurality of near axle head of flabellum for the unsettled setting of mounting bracket.

Optionally, the filtration includes the filter screen and set up in at least one guide muscle in the filter screen outside, guide muscle protrusion in the surface that the filter screen formed, the guide muscle is followed simultaneously filtration's circumferential direction and length direction extend.

Optionally, one side of the baffle plate facing the bottom of the dust collecting chamber is provided with at least one protrusion protruding towards the bottom of the dust collecting chamber.

Optionally, the outer diameter of the filter structure decreases in a direction away from the air outlet.

In a third aspect, the present invention provides a dirt cup assembly comprising a cyclonic separation chamber and a dirt collection chamber, the dirt cup assembly further comprising an air outlet and a filter structure disposed at the air outlet, the filter structure being rotatably disposed within the dirt cup assembly to filter an airflow before exiting the air outlet;

a fan is arranged in the filtering structure and rotates through airflow flowing out of the air outlet, so that the filtering structure is driven to rotate;

wherein the fan comprises a near shaft end close to the rotation axis and a far shaft end far away from the rotation axis in the radial direction, and the near shaft end of the fan is suspended to form a channel.

Optionally, the fan includes a plurality of flabellums, and a plurality of the nearly axle head of flabellum is all unsettled the setting.

Optionally, the air filter further comprises a mounting frame for supporting the filtering structure, the mounting frame is disposed at the air outlet, and at least part of the mounting frame penetrates through the channel.

Optionally, the mounting bracket includes a fixed shaft, and the bearing is mounted at one end of the fixed shaft far away from the air outlet.

Optionally, the periphery of the filtering structure is provided with an outer bearing, and the outer bearing is mounted at the air outlet.

Optionally, the filter structure includes a first end close to the air outlet and a second end far away from the air outlet, and a protection plate extending outward in a radial direction is disposed on an outer periphery of the first end.

Optionally, the fixed shaft is detachably disposed on the mounting frame.

The invention provides surface cleaning equipment with a dust cup assembly, wherein the dust cup assembly comprises a cyclone separation chamber and a dust collection chamber, and the cyclone separation chamber is arranged on the outer side of the dust collection chamber and is communicated with the dust collection chamber through an ash throwing port; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter the air flow before being discharged from the air outlet. A baffle plate extending in the dust collecting chamber is arranged at the dust throwing port to prevent part of dirt in the dust collecting chamber from being pumped back into the cyclone separation chamber; one side of the baffle plate facing the bottom of the dust collecting chamber is provided with at least one bulge protruding towards the direction of the bottom of the dust collecting chamber. Set up the baffle in the department of getting rid of the ash mouth, set up the arch in the below of baffle, can prevent effectively that hair from being pumbacked to whirlwind separating chamber.

Drawings

FIG. 1 is a schematic view of a hand-held vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along the direction F-F in FIG. 1;

FIG. 3 is a cross-sectional view taken along the line E-E in FIG. 1;

FIG. 4 is a cross-sectional view taken along the line G-G in FIG. 1;

FIG. 5 is a schematic diagram of an embodiment of a dirt cup assembly;

FIG. 6 is a cross-sectional view taken along the line A-A in FIG. 5;

FIG. 7 is a cross-sectional view at another angle along the line A-A in FIG. 5;

FIG. 8 is a partial enlarged view of area A in FIG. 6;

figure 9 is an exploded view of a rotating structure in the dirt cup assembly;

fig. 10 is a schematic structural diagram of a fan in an embodiment.

FIG. 11 is a schematic view of a filter rack according to an embodiment;

FIG. 12 is a schematic view of the filter holder viewed from the second end toward the first end;

FIG. 13 is a cross-sectional view of another embodiment of a dirt cup assembly;

fig. 14 is a schematic structural view of a filter structure in another embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Fig. 1 is a schematic structural view of a handheld vacuum cleaner according to an embodiment of the present invention. Fig. 2 is a sectional view taken along the direction F-F in fig. 1. Fig. 3 is a sectional view taken along the direction E-E in fig. 1. Fig. 4 is a sectional view taken along the direction G-G in fig. 1. FIG. 5 is a schematic diagram of an embodiment of a dirt cup assembly. Fig. 6 is a sectional view taken along a-a direction in fig. 2. Fig. 7 is a cross-sectional view at another angle along the direction a-a in fig. 2. Fig. 8 is a partially enlarged view of the area a in fig. 3. Figure 9 is an exploded view of the rotating structure in the dirt cup assembly. Fig. 10 is a schematic structural diagram of a fan in an embodiment. Fig. 11 is a schematic structural view of a filter frame according to an embodiment. Fig. 12 is a schematic structural view of the filter holder viewed from the second end toward the first end. Referring to fig. 1-4, a hand-held cleaner 10 is disclosed, wherein the direction of arrow X is the length direction of the hand-held cleaner, the direction Y is the width direction, and the direction Z is the height direction. The hand-held cleaner 10 includes a body 2, a dirt cup assembly 1, a fan assembly 3, a battery pack 4 and a filter element 33. The dust cup assembly 1, the fan assembly 3, the battery pack 4, the filter member 33, and the like can be detachably mounted on the machine body 2. The battery pack 4 powers the fan assembly 3, and the fan assembly 3 generates a suction airflow which draws dirt from the surface to be cleaned along a suction duct into the dirt cup assembly 1. A battery pack 4 is provided at the lower end of the handle 22 for powering the motor in the fan assembly 3.

With continued reference to fig. 1-4, the hand-held cleaner includes a body 2, a fan assembly 3, a dirt cup assembly 1, and a battery pack 4. The body 2 comprises a handle 22 for gripping, the body defining a suction duct. A fan assembly 3 is provided to the body 2 for generating a suction airflow. The fan assembly 3 is arranged above the handle. The dust cup assembly 1 is arranged on the machine body 2 and arranged in front of the fan assembly along the extension direction of the suction pipeline. A battery pack 4 is provided at the lower end of the handle 22 for powering the motor in the fan assembly. Wherein, the fan subassembly includes fan and filter piece, and the width direction fan along handheld dust catcher with filter the piece and be located handle axis O both sides respectively, refer to fig. 3, dirt cup subassembly includes cyclone 12 and dirt room 13, through getting rid of grey mouth 14 intercommunication between cyclone 12 and the dirt room 13, set up side by side along the width direction cyclone 12 and the dirt room 13 of handheld dust catcher. Set up fan subassembly and battery package respectively in the both ends of handle, set up fan 31 and filter 33 respectively in the both sides of handle axis O simultaneously, make battery package 2, fan 31 and filter 33 form a triangular positional relation, adopt this structural design, can make arranging of handheld dust catcher more reasonable, even the user adopts different use angle, it feels also can not produce great change.

Referring to fig. 5-12, the dirt cup assembly of the cleaner includes a cyclone chamber 12 and a dirt collection chamber 13, the cyclone chamber 12 being disposed outside the dirt collection chamber 13 and communicating with the dirt collection chamber 13 through an ash slinger 14; the cyclone chamber 12 further comprises an air inlet 122 and an air outlet 123, wherein the air inlet 122 and the air outlet 123 are respectively positioned at two ends of the cyclone chamber 12; the ends are not specifically referred to herein as bottom walls and the ends may include the bottom wall of an end wall and the side wall of a short section connected to the bottom wall. Both ends described herein include the inlet 122 and the outlet 123 being located on opposite bottom walls of the cyclonic separating chamber 12, respectively, or one of the inlet 122 and the outlet 123 may be located on the bottom wall and the other on the side wall. The respective positions of the inlet 122 and outlet 123 at the two ends of the cyclonic separating chamber 12 can also be understood as: the gas inlet 122 and the gas outlet 123 are not arranged at one end but are arranged separately, at least with respect to the middle position of the cyclonic separating chamber 12, the gas inlet 122 and the gas outlet 123 are arranged on either side of the middle position and adjacent to the bottom wall or at the bottom wall, respectively. Referring to FIGS. 5-12, also included within the dirt cup assembly is a filter construction 7 disposed at the air outlet 123, the filter construction 7 being rotatably disposed at the air outlet 123 to filter the air flow prior to discharge from the air outlet 123. The filtering structure 7 includes a filtering frame 71 and a filtering net 74 disposed on the filtering frame 71, the filtering net 74 may be a metal net, and the metal net may be fixed to the filtering frame 71 by gluing or other methods after being processed. Of course, the filter screen 74 may also be integrally formed with the filter frame 71. The filter structure 7 further comprises at least one guiding rib 76 arranged outside the filter screen 74, the guiding rib 76 protrudes out of the outer surface formed by the filter screen 74, and the guiding rib 76 extends along the circumferential direction and the length direction of the filter structure 7. The guide ribs 76 prevent hairs or the like from abutting the filter screen 74 and guide the hairs to move downwards so that the hairs are detached from the filter structure 7. Referring to fig. 11-12, the filter carrier 71 includes a fan mounting bracket 78 and a bearing mounting bracket, the fan mounting bracket 78 and the bearing mounting bracket being connected by a plurality of guide ribs 76. The number of the guide ribs 76 is more than or equal to 3, so that the structure is more stable, and hair falling is facilitated. The plurality of guide ribs 76 define a truncated cone-shaped or truncated pyramid-shaped receiving space. The filter frame 71 and the guide rib 76 may be integrally formed, and the filter net 74 is disposed inside the guide rib 76. Referring to the figure, at least a partial projection of the filter screen 74 in a direction perpendicular to the axis of rotation P of the filter structure 7 towards the location of the ash slinger 14 falls into the area of the ash slinger 14. Set up revolution mechanic to and get rid of the area that ash hole 14 corresponds, rotatory filtration 7 simultaneously can be with dust and debris guide or pat to getting rid of ash hole 14 for the dust gets into the speed of getting rid of ash hole 14, improves separation efficiency. Meanwhile, because the rotating direction of the filtering structure 7 is the same as that of the cyclone chamber 12, the probability of hair winding can be effectively reduced, because if the rotating direction of the filtering structure 7 is the same as that of the dust, the speed difference between the filtering structure 7 and the dust can be effectively reduced, and simultaneously, the hair can be directly thrown to the dust throwing port 14 due to the centrifugal force of the filtering structure 7.

Referring to fig. 11-12, the outer diameter of filter construction 7 decreases in a direction away from outlet port 123. I.e. the hairs wound on the filter frame 71 are gradually thrown off during the rotation of the filter structure 7 and then into the dust-throwing port 14. That is, filter structure 7 includes a first end 711 near outlet port 123 and a second end 712 remote from outlet port 123, with first end 711 having an outer diameter greater than that of second end 712. The second end 712 is suspended in the cyclone chamber 12, and the outer diameter of the filter structure 7 gradually decreases in a direction away from the air outlet 123. I.e., the outer diameter of the fan mounting bracket 78 is greater than the outer diameter of the bearing mounting bracket. So that the filter structure 7 hangs like a truncated cone structure within the cyclonic separating chamber 12 to facilitate the shedding of hairs from the second end 712. The first end 711 of the filter structure 7 is suspended relative to the mounting bracket 75. The filtering structure 7 can be of a circular truncated cone shape or a truncated pyramid shape on the whole, so that the hair can fall off conveniently. To further enhance the chance of hair falling, the guide ribs 76 extend both in the circumferential direction and in the length direction of the filter structure 7.

Referring to fig. 8 and 9, the dirt cup assembly further includes a mounting bracket 75 for supporting the filter structure 7, the mounting bracket 75 being disposed at the air outlet 123 for supporting the filter structure 7. Mounting bracket 75 is disposed at outlet port 123, and it should be understood that mounting bracket 75 may be disposed in outlet port 123, or may be disposed at a position near upstream and downstream of outlet port 123, and the specific position is not limited in detail here. Filter structure 7 includes a first end 711 proximate outlet port 123 and a second end 712 distal from outlet port 123, first end 711 being cantilevered with respect to mounting bracket 75, and second end 712 being rotatably mounted to mounting bracket 75 such that filter structure 7 is rotatable with respect to mounting bracket 75. Referring to fig. 8 and 9, mounting bracket 75 includes a support member 751 secured to air outlet 123, with support member 751 being a cross-support structure, although in other implementations, support member 751 may be any support structure for rotatably mounting filter structure 7 to air outlet 123. To facilitate the removal and installation of the filtering structure 7, the filtering structure 7 is mounted to one end of the fixed shaft 752 by means of a bearing 753, the other end of the fixed shaft 752 being fixed to the supporting structure, so that the fixed shaft 752 is stationary with respect to the supporting structure, which has the advantage that the possibility of entanglement of hairs entering the inside of the filtering structure 7 is reduced. Further, the fixing shaft 752 is detachably mounted to the supporting structure, so that the user can easily detach the fixing shaft to clean the filtering structure 7, even if there are impurities such as hairs remaining inside the filtering structure 7, the user can simply clean the impurities. In one implementation, the outer periphery of the end of the fixed shaft 752 remote from the bearing 753 is provided with an elastomeric material, in an interference fit with the mounting bracket 75. In other implementations, the fixing shaft 752 may be detachably disposed on the mounting frame 75 by a screw connection, a snap connection, or the like.

Referring to fig. 11 and 12, the bearing mounting bracket on the filter carrier 71 is disposed in the receiving groove 713, at least one bearing 753 is disposed in the receiving groove 713, and the filter carrier 71 is rotatably mounted to the mounting bracket 75 by the at least one bearing 753. The receiving groove 713 includes a bottom wall and a peripheral wall extending upward along a periphery of the bottom wall, the bottom wall and the peripheral wall collectively defining the receiving groove 713, and the receiving groove 713 includes an opening for mounting the bearing 753. The accommodating groove 713 is arranged in such a way that sundries can be well prevented from entering the accommodating groove 713 so as not to influence the smooth operation of the bearing 753. The bearings 753 are two in number and arranged side by side in the axial direction. The two bearings 753 are arranged side by side, which can effectively increase the stability of the filter structure 7. The end of the fixed shaft 752 remote from the bearing 753 is detachably mounted to the mounting bracket 75. The length of the bearing mounting bracket can be adjusted to suit the actual situation, and in particular the bearing mounting bracket can extend to the first end 711 of the filter structure 7 even beyond the first end 711, so that the length of the fixed shaft 752 can be reduced or the shorter filter structure 7 can be adapted. Even if the bearing mounting bracket is long, it is understood that the filter structure 7 is rotatably mounted via the second end 712 as long as the first end 711 of the filter structure 7 is suspended relative to the mounting bracket 75 or other fixed structure and moves relative to each other.

With continued reference to fig. 8, 11 and 12, filter structure 7 includes a first end 711 proximate to air outlet 123 and a second end 712 distal from air outlet 123, the outer periphery of first end 711 being provided with a shield plate 77 extending outwardly in the radial direction. The dirt cup assembly further includes a filter support, and the guard plate 77 is in clearance fit with the filter support, and a zigzag channel is formed between the guard plate and the filter support to prevent dust and hair from entering.

The filter structure 7 can be driven by a driving member, and in some implementations, referring to fig. 6-10, a fan 8 is disposed in the filter structure 7, and the fan 8 is rotated by the airflow flowing out of the air outlet 123, thereby driving the filter structure 7 to rotate; wherein the fan 8 comprises a proximal shaft end 84 close to the rotation axis P and a distal shaft end 83 remote from the rotation axis P in the radial direction, the proximal shaft end 84 of the fan 8 being arranged in suspension with respect to the mounting bracket 75. In one implementation, the fan 8 may be ring-shaped, and the center of the fan 8 is a hollow structure, so as to facilitate the passing of objects. The fan 8 comprises a plurality of fan blades 81, two ends of each fan blade 81 are fixed on the corresponding circular ring, and the space defined by the inner circular ring can ensure that objects can freely pass through the space. Further, the fan 8 includes a plurality of blades 81, and the proximal ends 84 of the plurality of blades 81 are all suspended. In one embodiment, fan blades 81 may be molded directly to filter frame 71. In another implementation, the fan 8 may be a separately manufactured part, and the fan 8 may be fixed to the inside or outside of the filter frame 71 by clamping, gluing, or ultrasonic welding after the manufacturing is completed. Flabellum 81 adopts unsettled mode, can increase the circulation of air area on the one hand, and on the other hand, can effectively avoid the hair to twine on flabellum 81.

Figure 13 is a cross-sectional view of another embodiment of a dirt cup assembly. Fig. 14 is a schematic structural view of a filter structure in another embodiment. Referring to fig. 13 and 14, the structure of this embodiment can be the structure described in the above embodiment except that the filter structure 7 is installed differently from the other embodiments. Referring to fig. 13-14, in another implementation, the outer periphery of filter structure 77 is provided with an outer bearing 82, mounted at outlet port 123 by outer bearing 82. Thus, the inside of the filter structure 77 is substantially empty, and hair is not substantially entangled, improving the reliability of the filter structure 77.

Referring to fig. 6 and 7, the dust slinger 14 is provided with a baffle 9 extending within the dirt collection chamber 13 to block dirt in the dirt collection chamber 13 from being drawn back into the cyclonic separation chamber 12. Since the filter arrangement 7 is relatively close in the dust extraction opening 14, a baffle 9 extending in the dust collection chamber 13 is arranged at the dust extraction opening 14 in order to prevent dust in the dust collection chamber 13 from being drawn into the cyclone chamber 12. The baffle 9 can be a straight baffle 9 or a bent baffle 9, and the suspended end of the baffle 9 can be inclined towards the bottom of the dust collection chamber 13 to achieve better anti-back-drawing effect. In order to further prevent the hair in the dust collecting chamber 13 from being drawn back into the cyclone chamber 12, the side of the baffle plate 9 facing the bottom of the dust collecting chamber 13 is provided with at least one protrusion 92 protruding towards the bottom of the dust collecting chamber 13. Thus, when the hair enters the dust collecting chamber 13, the hair may first come under the baffle plate 9 due to the disturbance of the airflow, and a part of the hair may return to the dust ejection opening 14 along the edge of the baffle plate 9, and if the protrusion 92, especially the plurality of protrusions 92 separately provided, is provided under the baffle plate 9, the hair, dust and the like can be effectively fixed at the protrusion 92, and can be prevented from being drawn back.

In other implementation manners, the filtering structure 7 can be driven by a motor, gear teeth can be arranged on the peripheral wall of the filtering structure 7, and the motor is arranged on one side of the filtering structure 7 and drives the filtering structure 7 to rotate through transmission structures such as gears. The outer periphery of the filter structure 7 is provided with an outer bearing 82, so that the inner space of the filter structure 7 is free from obstruction, and the failure rate is reduced. It will be appreciated that the filter structure 7 may also be driven by the drive member in other transmission ways, which will not be described in detail here.

In one embodiment, the filter structure 7 comprises a first end 711 close to the air outlet 123 and a second end 712 far from the air outlet 123, taking the direction along which the rotation axis P extends as the height direction, wherein the first end 711 is higher than the second end 712, and the lowest point of the second end 712 along the height direction is higher than the bottom of the ash slinger 14 and lower than the top of the ash slinger 14, which is suitable for a relatively short cup. This embodiment is not shown in the drawings, but with reference to fig. 6, L1 shown in fig. 6 is located below L2, i.e. the lowest point L1 of the filter mechanism is lower than the lowest point L2 of the ash slinger 14. In this embodiment, however, L1 should be located above L2.

In one embodiment, the filter structure 7 comprises a first end 711 close to the air outlet 123 and a second end 712 far from the air outlet 123, the height direction is taken as the direction extending along the rotation axis PP, the first end 711 is higher than the second end 712, and the lowest point of the second end 712 along the height direction is substantially equal to the bottom of the dust-throwing port 14, i.e. L1 should be substantially equal to L2, which is applicable to a dust cup with a relatively high height.

In one embodiment, the partial projection of the filter screen 74 in a direction perpendicular to the axis of rotation P of the filter structure towards the location of the ash slinger 14 falls in the area of the ash slinger 14, with all other structures being unchanged.

The dust cup assembly in any of the above embodiments can be used in surface cleaning apparatuses such as a floor sweeping robot, a horizontal vacuum cleaner, an upright vacuum cleaner, or a mite removing apparatus, and is not limited to the above cleaning apparatuses, and may also be other indoor or outdoor cleaning apparatuses.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A surface cleaning apparatus having a dirt cup assembly, the dirt cup assembly comprising a cyclonic separation chamber and a dirt collection chamber, the cyclonic separation chamber being disposed outside the dirt collection chamber and communicating with the dirt collection chamber through an ash slinger; the dust cup assembly further comprises an air outlet arranged in the cyclone separation chamber and a filtering structure arranged at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter the airflow before the airflow is discharged from the air outlet;

wherein, a baffle plate extending in the dust collecting chamber is arranged at the dust throwing port to prevent part of dirt in the dust collecting chamber from being pumped back to the cyclone separation chamber; one side of the baffle plate facing the bottom of the dust collecting chamber is provided with at least one bulge protruding towards the direction of the bottom of the dust collecting chamber.

2. A surface cleaning apparatus as claimed in claim 1,

the number of the projections is multiple.

3. A surface cleaning apparatus as claimed in claim 1,

at least one the arch set up in the baffle is kept away from the one end of ash throwing mouth.

4. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the dirt cup assembly further includes a mounting bracket for supporting the filter structure, the filter structure including a first end proximate the air outlet and a second end distal the air outlet, the second end rotatably mounted to the mounting bracket such that the filter structure is rotatable relative to the mounting bracket.

5. A surface cleaning apparatus as claimed in claim 4,

the filtering structure comprises a filtering frame, the filtering frame is arranged in a containing groove, at least one bearing is arranged in the containing groove, and the filtering frame is rotatably arranged on the mounting frame through the at least one bearing.

6. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the filter structure comprises a filter screen and a guide rib arranged on the outer side of the filter screen, wherein the guide rib protrudes out of the outer surface formed by the filter screen.

7. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the filter structure comprises a filter screen, and at least part of projection of the filter screen in the direction perpendicular to the rotation axis of the filter structure falls into the area where the ash throwing port is located.

8. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

the baffle is provided with at least one through hole which penetrates through the baffle along the thickness direction.

9. A surface cleaning apparatus as claimed in any one of claims 1 to 3,

a fan is arranged in the filtering structure and rotates through airflow flowing out of the air outlet, and the fan can drive the filtering structure to rotate.

10. A surface cleaning apparatus as claimed in claim 9,

the fan comprises a plurality of fan blades, the fan blades comprise a near shaft end close to the rotation axis and a far shaft end far away from the rotation axis along the radial direction, and the near shaft ends of the fan blades are arranged in a suspension mode.