Dust cup assembly and vacuum cleaner

Abstract

The present invention discloses a dust cup assembly and a dust collector. The dust cup assembly includes a cyclone separation chamber and a dust collecting chamber. The cyclone separation chamber is arranged on the outside of the dust collecting chamber and is connected to the dust collecting chamber through an ash outlet. The dust cup assembly also includes an air outlet arranged in the cyclone separation chamber and a filter structure arranged at the air outlet. The filter structure can be rotatably arranged at the air outlet to filter the air flow before it is discharged from the air outlet. The dust cup assembly also includes a mounting frame for supporting the filter structure. The filter structure includes a first end close to the air outlet and a second end away from the air outlet. The second end can be rotatably mounted on the mounting frame so that the filter structure can rotate relative to the mounting frame. A fan is arranged in the filter structure. The fan is driven to rotate by the air flow flowing out of the air outlet. The fan can drive the filter structure to rotate. The fan includes a proximal end close to the rotation axis and a distal end away from the rotation axis in the radial direction. The proximal end of the fan is suspended relative to the mounting frame.

Description

[0001] This application is a divisional application of the Chinese patent application with application date of June 7, 2022, application number 202210640568.4, and invention name “Dust cup assembly and vacuum cleaner”. Technical Field

[0002] The present invention relates to the technical field of cleaning equipment, and in particular to a dust cup assembly and a vacuum cleaner. Background Art

[0003] As a popular cleaning device, vacuum cleaners have long attracted significant attention. They typically consist of a dust cup assembly, a blower, and a cleaning head. The blower generates a suction airflow that collects dirt from the surface being cleaned into the dust cup through the cleaning head. To improve separation efficiency, the dust cup assembly is typically equipped with a cyclone separator.

[0004] The cyclonic separation chamber may include a rotating filter structure, which is mounted on the cyclonic separation chamber through the rotating structure to improve separation efficiency. However, when fine hair enters the filter structure, it has a high probability of being entangled in the rotating structure, thereby rendering the rotating structure ineffective. Summary of the Invention

[0005] In response to the deficiencies in the above-mentioned technologies, the present invention provides a dust cup assembly and a vacuum cleaner, wherein the filter structure and the fan are both suspended, effectively solving the problem of hair entanglement in the filter structure.

[0006] In a first aspect, the present invention provides a dust cup assembly comprising a cyclone separation chamber and a dust collection chamber, wherein the cyclone separation chamber is disposed outside the dust collection chamber and is connected to the dust collection chamber via a dust outlet; the dust cup assembly further comprises an air outlet disposed in the cyclone separation chamber and a filter structure disposed at the air outlet, wherein the filter structure is rotatably disposed at the air outlet to filter airflow before it is discharged from the air outlet;

[0007] The dust cup assembly further includes a mounting frame for supporting the filter structure, wherein the filter structure includes a first end close to the air outlet and a second end away from the air outlet, and the second end is rotatably mounted on the mounting frame so that the filter structure can rotate relative to the mounting frame;

[0008] A fan is provided in the filtering structure, and the fan is driven to rotate by the airflow flowing out of the air outlet. The fan can drive the filtering structure to rotate. The fan includes a proximal end close to the rotation axis and a distal end away from the rotation axis in the radial direction. The proximal end of the fan is suspended relative to the mounting frame.

[0009] Optionally, the first end of the filtering structure is suspended relative to the mounting frame.

[0010] Optionally, the filtering structure includes a filter frame, the filter frame is arranged on the receiving groove, at least one bearing is provided in the receiving groove, and the filter frame is rotatably mounted on the mounting frame through the at least one bearing.

[0011] Optionally, the mounting bracket includes a fixed shaft, and the bearing is mounted on an end of the fixed shaft away from the air outlet.

[0012] Optionally, the filtering structure includes a first end close to the air outlet and a second end away from the air outlet, the outer diameter of the first end is larger than the outer diameter of the second end, and the filtering structure defines a truncated cone or prism-shaped internal space.

[0013] Optionally, the filter structure includes a filter screen and guide ribs arranged on the outside of the filter screen, and the guide ribs protrude from the outer surface formed by the filter screen.

[0014] Optionally, a baffle extending into the dust collecting chamber is provided at the dust throwing outlet to prevent part of the dirt in the dust collecting chamber from being drawn back into the cyclone separation chamber.

[0015] Optionally, the baffle is provided with at least one through hole penetrating the baffle along the thickness direction.

[0016] In a second aspect, the present invention provides a vacuum cleaner comprising

[0017] a body including a handle for holding, said body defining a suction conduit;

[0018] The fan assembly is arranged on the body, and the fan assembly is arranged above the handle;

[0019] The dust cup assembly is arranged on the machine body and in front of the fan assembly along the extension direction of the suction pipe;

[0020] a battery pack, disposed at the lower end of the handle, for providing energy to the motor in the blower assembly;

[0021] Wherein, the fan assembly includes a fan and a filter, and the fan and the filter are respectively located on both sides of the handle axis along the width direction of the vacuum cleaner.

[0022] In a third aspect, the present invention provides a dust cup assembly, comprising a cyclone separation chamber and a dust collecting chamber, wherein the cyclone separation chamber is arranged outside the dust collecting chamber and is connected to the dust collecting chamber through an ash outlet; the dust cup assembly further comprises:

[0023] An air outlet and a filter structure disposed at the air outlet, wherein the filter structure is rotatably disposed at the air outlet to filter the air flow before it is discharged from the air outlet;

[0024] The filter structure includes a filter screen and guide ribs arranged on the outside of the filter screen, and the guide ribs protrude from the outer surface formed by the filter screen.

[0025] Optionally, the filtering structure includes a first end close to the air outlet and a second end away from the air outlet, and an outer diameter of the first end is greater than an outer diameter of the second end.

[0026] Optionally, the outer diameter of the filter structure gradually decreases in a direction away from the air outlet.

[0027] Optionally, the guide ribs extend along both the circumferential direction and the longitudinal direction of the filtering structure.

[0028] Optionally, the number of the guide ribs is greater than or equal to 3.

[0029] Optionally, the filter structure includes a filter frame and a filter screen mounted on the filter frame, the filter frame and the guide rib are integrally formed, and the filter screen is arranged on the inner side of the guide rib.

[0030] Optionally, the filtering structure includes a fan mounting bracket and a bearing mounting bracket, and the fan mounting bracket and the bearing mounting bracket are connected via a plurality of guide ribs.

[0031] Optionally, the plurality of guide ribs define a truncated cone-shaped accommodation space.

[0032] Optionally, the dust cup assembly also includes a mounting bracket arranged at the air outlet, and the mounting bracket is used to support the filter structure; the filter structure includes a filter frame, and the filter frame is arranged on the receiving groove, and at least one bearing is provided in the receiving groove, and the filter frame is rotatably mounted on the mounting bracket through the at least one bearing.

[0033] Optionally, a fan is provided in the filtering structure, and the fan is rotated by the air flow flowing out of the air outlet, and the fan can drive the filtering structure to rotate; wherein, the fan includes a plurality of fan blades, and the fan blades include a proximal end close to the rotation axis and a distal end away from the rotation axis in the radial direction, and the proximal ends of the plurality of fan blades are all suspended.

[0034] In a fourth aspect, the present invention provides a dust cup assembly, comprising a cyclone separation chamber and a dust collecting chamber, the dust cup assembly further comprising:

[0035] an air outlet for discharging the separated air flow out of the cyclone separation chamber;

[0036] A filter structure is provided at the air outlet to filter the air flow before it is discharged from the air outlet, and the filter structure is rotatably provided at the air outlet;

[0037] A mounting frame, disposed at the air outlet, for supporting the filtering structure;

[0038] The filter structure includes a first end close to the air outlet and a second end away from the air outlet, and the second end is rotatably mounted on the mounting frame so that the filter structure can rotate relative to the mounting frame.

[0039] Optionally, the filter structure includes a filter frame and a filter net arranged on the filter frame.

[0040] Optionally, the filter frame is provided with a receiving groove, at least one bearing is provided in the receiving groove, and the filter frame is rotatably mounted on the mounting frame via the at least one bearing.

[0041] Optionally, the mounting bracket includes a fixed shaft, and the bearing is mounted on an end of the fixed shaft away from the air outlet.

[0042] Optionally, there are two bearings, which are arranged side by side in the axial direction.

[0043] Optionally, one end of the fixed shaft away from the bearing is detachably mounted on the mounting bracket.

[0044] Optionally, an elastic material is provided on the outer periphery of one end of the fixed shaft away from the bearing, and is interference fit with the mounting bracket.

[0045] Optionally, the first end of the filtering structure is suspended relative to the mounting frame.

[0046] Optionally, a fan is provided in the filtering structure, and the fan includes a proximal end close to the rotation axis and a distal end away from the rotation axis in the radial direction, and the proximal end of the fan is suspended.

[0047] Optionally, the filter structure includes a filter frame and a filter screen mounted on the filter frame, the filter frame is integrally formed with a guide rib, and the filter screen is arranged on the inner side of the guide rib.

[0048] In a fifth aspect, the present invention provides a vacuum cleaner comprising a dust cup assembly and a fan assembly, wherein the fan assembly is configured to generate a suction airflow, and the dust cup assembly is configured to separate dust and air from the airflow carrying dirt; the dust cup assembly comprises a cyclone separation chamber and a dust collection chamber, wherein the cyclone separation chamber is disposed outside the dust collection chamber and is connected to the dust collection chamber via a dust outlet;

[0049] The cyclone separation chamber further comprises an air inlet and an air outlet, wherein the air inlet and the air outlet are respectively located at two ends of the cyclone separation chamber;

[0050] Wherein, the cyclone separation chamber is further provided with a filtering structure located at the air outlet, and the filtering structure is rotatably arranged at the air outlet to filter the air flow before it is discharged from the air outlet.

[0051] Optionally, the filtering structure includes a first end close to the air outlet and a second end away from the air outlet, and a protective plate extending outward in a radial direction is provided on the outer periphery of the first end.

[0052] Optionally, the dust cup assembly further includes a filter bracket, and the protective plate and the filter bracket are clearance-fitted with each other, and a zigzag channel is formed therebetween.

[0053] Optionally, the filter structure includes a filter screen, and at least a portion of the filter screen is projected in a direction perpendicular to the rotation axis of the filter structure and falls into the area where the ash outlet is located.

[0054] Optionally, a baffle extending into the dust collecting chamber is provided at the dust throwing outlet to prevent part of the dirt in the dust collecting chamber from being drawn back into the cyclone separation chamber.

[0055] Optionally, the dust cup assembly also includes a mounting bracket arranged at the air outlet, and the mounting bracket is used to support the filter structure; the filter structure also includes a first end close to the air outlet and a second end away from the air outlet, the first end is suspended relative to the mounting bracket, and the second end is rotatably mounted on the mounting bracket so that the filter structure can rotate relative to the mounting bracket.

[0056] Optionally, a fan is provided in the filtering structure, and the fan is rotated by the air flow flowing out of the air outlet, and the fan can drive the filtering structure to rotate; the fan includes a plurality of fan blades, and the fan blades include a proximal end close to the rotation axis and a distal end away from the rotation axis in the radial direction, and the proximal ends of the plurality of fan blades are suspended.

[0057] Optionally, the filter structure includes a filter screen and guide ribs arranged on the outside of the filter screen, and the guide ribs protrude from the outer surface formed by the filter screen.

[0058] Optionally, the filtering structure includes a first end close to the air outlet and a second end away from the air outlet, the outer diameter of the first end is larger than the outer diameter of the second end, and the filtering structure defines a truncated cone or prism-shaped internal space.

[0059] Optionally, the baffle is provided with at least one protrusion protruding toward the bottom of the dust collecting chamber.

[0060] The dust cup assembly provided by the present invention includes a cyclone separation chamber and a dust collection chamber. The cyclone separation chamber is disposed outside the dust collection chamber and is connected to the dust collection chamber via an ash outlet. The dust cup assembly also includes an air outlet disposed in the cyclone separation chamber and a filter structure disposed at the air outlet. The filter structure is rotatably mounted at the air outlet to filter airflow before it is discharged from the air outlet. The dust cup assembly also includes a mounting bracket for supporting the filter structure. The filter structure includes a first end proximal to the air outlet and a second end distal to the air outlet. The second end is rotatably mounted to the mounting bracket so that the filter structure can rotate relative to the mounting bracket. A fan is disposed within the filter structure. The fan is driven to rotate by airflow flowing out of the air outlet, thereby driving the filter structure to rotate. The fan includes a proximal end proximal to the rotation axis and a distal end distal to the rotation axis in a radial direction. The proximal end of the fan is suspended relative to the mounting bracket. The suspended fan arrangement and the rotatable mounting of the second end of the filter structure to the mounting bracket effectively prevent hair from becoming entangled in the filter structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 Schematic diagram of the structure of a handheld vacuum cleaner in one embodiment of the present invention;

[0062] Figure 2 For the Figure 1 Cross-sectional view in the FF direction;

[0063] Figure 3 For the Figure 1 Cross-sectional view in the EE direction;

[0064] Figure 4 For the Figure 1 Cross-sectional view in the GG direction;

[0065] Figure 5 This is a schematic structural diagram of a dust cup assembly in one embodiment;

[0066] Figure 6 For the Figure 5 Cross-sectional view in the AA direction;

[0067] Figure 7 For the Figure 5 A cross-sectional view from another angle in the AA direction;

[0068] Figure 8 for Figure 6 A partial enlarged view of area A in the middle;

[0069] Figure 9 It is an exploded view of the rotating structure in the dust cup assembly;

[0070] Figure 10 This is a schematic structural diagram of a fan in one embodiment;

[0071] Figure 11 This is a schematic structural diagram of a filter frame in one embodiment;

[0072] Figure 12 is a structural schematic diagram of the filter frame viewed from the second end toward the first end;

[0073] Figure 13 is a cross-sectional view of a dust cup assembly in another embodiment;

[0074] Figure 14 FIG. 4 is a schematic structural diagram of a filtering structure in another embodiment. DETAILED DESCRIPTION

[0075] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0076] It should be noted that if a directional indication is involved in an embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0077] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0078] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0079] Figure 1 Schematic diagram of the structure of a handheld vacuum cleaner in one embodiment of the present invention. Figure 2 For the Figure 1 Cross-sectional view in the FF direction. Figure 3 For the Figure 1 Cross-sectional view along the EE direction. Figure 4 For the Figure 1 Cross-sectional view in the GG direction. Figure 5 Schematic diagram of the structure of the dust cup assembly in one embodiment. Figure 6 For the Figure 2 Cross-sectional view in the AA direction. Figure 7 For the Figure 2 Cross-sectional view from another angle along the AA direction. Figure 8 for Figure 3 A partial enlarged view of area A in the middle. Figure 9 This is an exploded view of the rotating structure in the dust cup assembly. Figure 10 Schematic diagram of the structure of a fan in one embodiment. Figure 11 Schematic diagram of the structure of the filter frame in one embodiment. Figure 12 Schematic diagram of the filter frame viewed from the second end toward the first end. Figure 1-4 , discloses a handheld vacuum cleaner 10, in which the arrow X direction in the figure is the length direction of the handheld vacuum cleaner, the arrow Y direction is the width direction, and the arrow Z direction is the height direction. The handheld vacuum cleaner 10 includes a body 2, a dust cup assembly 1, a fan assembly 3, a battery pack 4 and a filter 33. The dust cup assembly 1, the fan assembly 3, the battery pack 4 and the filter 33 can all be detachably installed on the body 2. The battery pack 4 provides power for the fan assembly 3, and the fan assembly 3 generates a suction airflow, which sucks the dirt on the surface to be cleaned into the dust cup assembly 1 along the suction pipe. The battery pack 4 is arranged at the lower end of the handle 22 and is used to provide energy for the motor in the fan assembly 3.

[0080] Continue to refer Figure 1-4The handheld vacuum cleaner includes a body 2, a fan assembly 3, a dust cup assembly 1 and a battery pack 4. The body 2 includes a handle 22 for holding, and the body is defined by a suction duct. The fan assembly 3 is arranged on 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 body 2 along the extension direction of the suction duct and in front of the fan assembly. The battery pack 4 is arranged at the lower end of the handle 22 for providing energy to the motor in the fan assembly. Among them, the fan assembly includes a fan and a filter, and the fan and the filter are respectively located on both sides of the handle axis O along the width direction of the handheld vacuum cleaner, with reference to FIG. Figure 3 The dust cup assembly includes a cyclone separation chamber 12 and a dust collection chamber 13, which are connected by a dust outlet 14. The cyclone separation chamber 12 and the dust collection chamber 13 are arranged side by side along the width of the handheld vacuum cleaner. The fan assembly and battery pack are respectively arranged at both ends of the handle, and the fan 31 and filter element 33 are respectively arranged on both sides of the handle axis O, so that the battery pack 4, fan 31 and filter element 33 form a triangular position relationship. The use of this structural design can make the layout of the handheld vacuum cleaner more reasonable, and its feel will not change significantly even if the user uses it at different angles.

[0081] refer to Figure 5-12 The dust cup assembly of the vacuum cleaner includes a cyclone separation chamber 12 and a dust collecting chamber 13. The cyclone separation chamber 12 is arranged outside the dust collecting chamber 13 and is connected to the dust collecting chamber 13 through the dust outlet 14. The cyclone separation chamber 12 also includes an air inlet 122 and an air outlet 123. The air inlet 122 and the air outlet 123 are respectively located at the two ends of the cyclone separation chamber 12. The two ends here do not specifically refer to the bottom wall. The end may include the bottom wall of the end wall and a small section of the side wall connected to the bottom wall. The two ends described here include both the air inlet 122 and the air outlet 123 being located at the two opposite bottom walls of the cyclone separation chamber 12, and one of the air inlet 122 and the air outlet 123 may be located at the bottom wall and the other may be located at the side wall. The air inlet 122 and the air outlet 123 are respectively located at both ends of the cyclone separation chamber 12. It can also be understood that the air inlet 122 and the air outlet 123 are not arranged at one end, but are arranged separately, at least relative to the middle position of the cyclone separation chamber 12, the air inlet 122 and the air outlet 123 are respectively arranged on both sides of the middle position and close to the bottom wall or located on the bottom wall. Figure 5-12The dust cup assembly also includes a filter structure 7 arranged at the air outlet 123. The filter structure 7 can be rotatably arranged at the air outlet 123 to filter the air flow before it is discharged from the air outlet 123. The filter structure 7 includes a filter frame 71 and a filter screen 74 arranged on the filter frame 71. The filter screen 74 can be a metal screen. After the metal screen is processed, it can be fixed to the filter frame 71 by gluing or other methods. Of course, the filter screen 74 can also be integrally formed with the filter frame 71. The filter structure 7 also includes at least one guide rib 76 arranged on the outside of the filter screen 74. The guide rib 76 protrudes from the outer surface formed by the filter screen 74. The guide rib 76 extends along the circumferential direction and the length direction of the filter structure 7 at the same time. The guide rib 76 can prevent hair and the like from being close to the filter screen 74, and can guide the hair to move downward to make the hair break away from the filter structure 7. Reference Figure 11-12 , the filter frame 71 includes a fan mounting bracket 78 and a bearing mounting bracket, and the fan mounting bracket 78 and the bearing mounting bracket are connected by a plurality of guide ribs 76. The number of guide ribs 76 is greater than or equal to 3, which not only makes the structure more stable, but also facilitates hair loss. The plurality of guide ribs 76 define a truncated cone-shaped accommodation space or a prism-shaped accommodation space. The filter frame 71 and the guide ribs 76 can be integrally formed, and the filter screen 74 is arranged on the inner side of the guide ribs 76. Referring to the figure, at least part of the projection of the filter screen 74 toward the position of the ash outlet 14 in the direction perpendicular to the rotation axis P of the filter structure 7 falls into the area where the ash outlet 14 is located. The rotating structure is set to the area corresponding to the ash outlet 14, and the rotating filter structure 7 can guide or beat dust and debris to the ash outlet 14 at the same time, speeding up the speed at which dust enters the ash outlet 14 and improving the separation efficiency. At the same time, since the rotation direction of the filter structure 7 is the same as the rotation direction in the cyclone separation chamber 12, the chance of hair entanglement can be effectively reduced. This is because if the rotation direction of the filter structure 7 is the same as the rotation direction of the dust, the speed difference between the two can be effectively reduced. At the same time, due to the centrifugal force of the filter structure 7, the hair can be directly thrown toward the dust outlet 14.

[0082] refer to Figure 11-12The outer diameter of the filter structure 7 gradually decreases as it moves away from the air outlet 123. That is, hair entangled in the filter frame 71 is gradually thrown off during the rotation of the filter structure 7 and then enters the dust removal outlet 14. Specifically, the filter structure 7 includes a first end 711 near the air outlet 123 and a second end 712 away from the air outlet 123. The outer diameter of the first end 711 is larger than the outer diameter of the second end 712. The second end 712 is suspended within the cyclone separation chamber 12, and the outer diameter of the filter structure 7 gradually decreases as it moves away from the air outlet 123. In other words, the outer diameter of the fan mounting bracket 78 is larger than the outer diameter of the bearing mounting bracket. This allows the filter structure 7 to be suspended within the cyclone separation chamber 12 like a frustum, facilitating the shedding of hair from the second end 712. The first end 711 of the filter structure 7 is suspended relative to the mounting bracket 75. The filter structure 7 can be truncated or prism-shaped to facilitate hair shedding. In order to further enhance the probability of hair falling, the guide ribs 76 extend along both the circumferential direction and the longitudinal direction of the filter structure 7 .

[0083] refer to Figure 8 and 9 The dust cup assembly also includes a mounting bracket 75 for supporting the filter structure 7. The mounting bracket 75 is arranged at the air outlet 123 to support the filter structure 7. The mounting bracket 75 is arranged at the air outlet 123. It can be understood that the mounting bracket 75 can be arranged in the air outlet 123 or at a position upstream and downstream of the air outlet 123. The specific position is not limited in detail here. The filter structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123. The first end 711 is suspended relative to the mounting bracket 75, and the second end 712 is rotatably mounted on the mounting bracket 75 so that the filter structure 7 can rotate relative to the mounting bracket 75. Reference Figure 8 and 9The mounting frame 75 includes a support member 751 secured to the air outlet 123. The support member 751 is a cross-shaped support structure. Of course, in other implementations, the support member 751 can be any other support structure. The support structure is used to rotatably mount the filter structure 7 to the air outlet 123. To facilitate assembly and disassembly of the filter structure 7, the filter structure 7 is mounted to one end of a fixed shaft 752 via a bearing 753. The other end of the fixed shaft 752 is fixed to the support structure, keeping the fixed shaft 752 stationary relative to the support structure. This stationary position of the fixed shaft 752 relative to the support structure reduces the chance of hair becoming entangled within the filter structure 7. Furthermore, the fixed shaft 752 is detachably mounted to the support structure, making it easy for the user to remove and clean the filter structure 7. Even if hair or other debris remains within the filter structure 7, the user can simply clean it. In one implementation, an elastic material is provided on the outer periphery of the fixed shaft 752, distal from the bearing 753, to provide an interference fit with the mounting frame 75. In other implementations, the fixed shaft 752 can also be detachably provided on the mounting bracket 75 by means of threaded connection, snap connection, etc.

[0084] refer to Figure 11 and 12 The bearing mounting bracket on the filter frame 71 is arranged in the receiving groove 713. At least one bearing 753 is arranged in the receiving groove 713. The filter frame 71 is rotatably mounted on the mounting bracket 75 through the at least one bearing 753. The receiving groove 713 includes a bottom wall and a peripheral wall extending upward along the periphery of the bottom wall. The bottom wall and the peripheral wall together define the receiving groove 713. The receiving groove 713 includes an opening for installing the bearing 753. The receiving groove 713 is arranged in this way, which can effectively prevent debris from entering the receiving groove 713 to avoid affecting the smooth operation of the bearing 753. There are two bearings 753, which are 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 away from the bearing 753 is detachably mounted on the mounting bracket 75. The length of the bearing mounting bracket can be adjusted according to actual conditions. Specifically, the bearing mounting bracket can extend to the first end 711 of the filter structure 7 or even beyond the first end 711. This can reduce the length of the fixed shaft 752 or accommodate a shorter filter structure 7. Even if the bearing mounting bracket is longer, 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 the two move relative to each other, it can be understood that the filter structure 7 is rotatably mounted via the second end 712.

[0085] Continue to refer Figure 8 、 1112, the filter structure 7 includes a first end 711 near the air outlet 123 and a second end 712 away from the air outlet 123. The outer periphery of the first end 711 is provided with a protective plate 77 extending outward in the radial direction. The dust cup assembly also includes a filter bracket. The protective plate 77 and the filter bracket are clearance-fitted and form a tortuous channel therebetween to prevent dust and hair from entering.

[0086] The filter structure 7 can be driven by a driving member. In some implementations, refer to Figure 6-10 A fan 8 is provided in the filter structure 7. The fan 8 rotates due to the airflow flowing out of the air outlet 123, thereby driving the filter structure 7 to rotate. The fan 8 includes a proximal end 84 close to the rotation axis P and a distal end 83 away from the rotation axis P in the radial direction. The proximal end 84 of the fan 8 is suspended relative to the mounting frame 75. In one embodiment, the fan 8 can be annular, and the center of the fan 8 is a hollow structure to facilitate the passage of objects. The fan 8 includes a plurality of blades 81, both ends of the blades 81 are fixed to corresponding circular rings, and the space defined by the inner circular ring can ensure that objects can pass through freely. Furthermore, 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, the blades 81 can be directly molded onto the filter frame 71. In another embodiment, the fan 8 can be a separately manufactured part. After the fan 8 is manufactured, it can be fixed to the inside or outside of the filter frame 71 by means of snap-on, gluing or ultrasonic welding. The fan blades 81 are suspended, which can increase the air circulation area on the one hand, and effectively prevent hair from being entangled on the fan blades 81 on the other hand.

[0087] Figure 13 A cross-sectional view of a dust cup assembly in another embodiment. Figure 14 FIG. 1 is a schematic diagram of a filter structure in another embodiment. Figure 13 and 14 Except for the installation method of the filter structure 7, the structure of this embodiment is different from that of other embodiments. The other structures can adopt the structure described in the above embodiment. Figure 13-14 In another embodiment, an outer bearing 82 is provided on the periphery of the filter structure 7, and the filter structure 7 is mounted on the air outlet 123 through the outer bearing 82. In this way, the interior of the filter structure 7 is basically empty, and hair will not be entangled, thereby improving the reliability of the filter structure 7.

[0088] refer to Figure 6 and 7, a baffle 9 extending inside the dust collecting chamber 13 is provided at the ash throwing port 14 to prevent part of the dirt in the dust collecting chamber 13 from being drawn back into the cyclone separation chamber 12. Since the filter structure 7 is relatively close to the ash throwing port 14, in order to prevent the dust in the dust collecting chamber 13 from being drawn into the cyclone separation chamber 12, a baffle 9 extending inside the dust collecting chamber 13 is provided at the ash throwing port 14. The baffle 9 can be a straight baffle 9 or a curved baffle 9, and the suspended end of the baffle 9 can be tilted toward the bottom of the dust collecting chamber 13 to achieve a better anti-backdrawing effect. In order to further prevent the hair in the dust collecting chamber 13 from being drawn back into the cyclone separation chamber 12, at least one protrusion 92 protruding toward the direction of the bottom of the dust collecting chamber 13 is provided on the side of the baffle 9 facing the bottom of the dust collecting chamber 13. In this way, when the hair enters the dust collecting chamber 13, due to the disturbance of the airflow, the hair will first go to the bottom of the baffle 9, and some of the hair may return to the dust outlet 14 along the edge of the baffle 9. If a protrusion 92 is provided under the baffle 9, especially multiple protrusions 92 provided separately, the hair and dust can be effectively fixed to the protrusion 92 to prevent them from being drawn back.

[0089] In other implementations, the filter structure 7 can also be driven by a motor. Gear teeth can be provided on the peripheral wall of the filter structure 7. The motor is positioned on one side of the filter structure 7, driving the filter structure 7 to rotate via a transmission structure such as gears. An external bearing 82 is provided on the outer periphery of the filter structure 7. This also ensures that the internal space of the filter structure 7 is free of obstructions, reducing the risk of failure. It is understood that the filter structure 7 can also be driven by a driver using other transmission methods, which will not be detailed here.

[0090] In one embodiment, with other structures remaining unchanged, the filter structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123, with the direction extending along the rotation axis P as the height direction, and 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 outlet 14 and lower than the top of the ash outlet 14. This situation is suitable for dust cups with a relatively short height. This embodiment is not shown in the figure, but can be referred to Figure 6 , Figure 6 As shown, L1 is located below L2, that is, the lowest point L1 of the filter mechanism is lower than the lowest point L2 of the ash outlet 14. In this embodiment, L1 should be located above L2.

[0091] In one embodiment, with other structures remaining unchanged, the filtering structure 7 includes a first end 711 close to the air outlet 123 and a second end 712 away from the air outlet 123, with the direction extending along the rotation axis PP as the height direction, and 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 basically level with the bottom of the ash outlet 14, that is, L1 should be basically level with L2. This situation is suitable for dust cups with relatively high heights.

[0092] In one embodiment, with other structures remaining unchanged, the portion of the filter screen 74 projected toward the ash outlet 14 along a direction perpendicular to the rotation axis P of the filter structure falls into the area where the ash outlet 14 is located.

[0093] The dust cup assembly in any of the above embodiments can be used in surface cleaning equipment such as sweeping robots, horizontal vacuum cleaners, upright vacuum cleaners or mite removers. This is just an example and is not limited to the above cleaning equipment. It can also be other indoor or outdoor cleaning equipment.

[0094] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A dust cup assembly, characterized in that: It includes a cyclone separation chamber and a dust collection chamber, wherein the cyclone separation chamber is arranged outside the dust collection chamber and is connected to the dust collection chamber through an ash throwing port; the dust cup assembly also includes an air outlet arranged in the cyclone separation chamber and a filter structure arranged at the air outlet, wherein the filter structure is rotatably arranged at the air outlet to filter the air flow before it is discharged from the air outlet; An outer bearing is provided on the periphery of the filter structure, and the filter structure is mounted at the air outlet through the outer bearing; The dust cup assembly also includes a fan, which is driven to rotate by the airflow flowing out of the air outlet. The fan can drive the filter structure to rotate. The fan includes a proximal end close to the rotation axis and a distal end away from the rotation axis in the radial direction. The proximal end of the fan is suspended relative to the mounting frame. The fan includes a plurality of fan blades, and the proximal ends of the plurality of fan blades are all suspended.

2. The dust cup assembly according to claim 1, wherein: The fan is detachably arranged inside the filter structure; or the fan and the filter structure are integrally formed.

3. The dust cup assembly according to claim 1, wherein: The filtering structure includes a first end close to the air outlet and a second end away from the air outlet, with the direction extending along the rotation axis as the height direction, and the first end is higher than the second end, and the lowest point of the second end along the height direction is basically level with the bottom of the ash outlet.

4. The dust cup assembly according to claim 1, wherein: The filter structure includes a filter screen, and at least a portion of the filter screen is projected in a direction perpendicular to the rotation axis of the filter structure and falls into the area where the ash outlet is located.

5. The dust cup assembly according to claim 1, wherein: The filter structure includes a filter screen and guide ribs arranged on the outside of the filter screen, and the guide ribs protrude from the outer surface formed by the filter screen.

6. The dust cup assembly according to claim 1, wherein: The dust outlet is provided with a baffle extending into the dust collecting chamber to prevent part of the dirt in the dust collecting chamber from being drawn back into the cyclone separation chamber.

7. The dust cup assembly according to claim 6, characterized in that: The baffle is provided with at least one through hole penetrating the baffle along the thickness direction.

8. The dust cup assembly according to claim 6, wherein: At least one protrusion protruding toward the bottom of the dust collecting chamber is provided on one side of the baffle facing the bottom of the dust collecting chamber.

9. A vacuum cleaner, characterized in that: The vacuum cleaner includes a fan assembly for generating an airflow and a dust cup assembly as described in any one of claims 1 to 7.

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