Dust cup assembly, vacuum cleaner and cleaning system

Abstract

This utility model discloses a dust cup assembly, a vacuum cleaner, and a cleaning system. The dust cup assembly is detachably installed in the vacuum cleaner and includes a cup body and a filter assembly. The cup body defines a first space, and the filter assembly is at least partially disposed within the first space. The filter assembly includes a first filter for filtering dust and a second filter located downstream of the first filter. Airflow entering the cup body flows sequentially through the first filter and the second filter along the airflow direction. A second dust scraping device is disposed on the filter assembly and is used to scrape off at least a portion of the dust adhering to the second filter. The second dust scraping device is detachably installed in the cup body along with the filter assembly. By providing the second dust scraping device to scrape the second filter, the service life of the second filter is extended. Furthermore, by detachably installing the second dust scraping device in the cup body along with the filter assembly, the entire structure becomes easier to assemble and disassemble, and easier to clean.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a dust cup assembly, a vacuum cleaner and a cleaning system. Background Technology

[0002] Vacuum cleaners generally consist of a suction motor that generates suction airflow and a dust cup assembly for collecting dust. The dust cup assembly contains a first filter (which can be a filter screen and / or a cyclone separator), which separates most of the dirt into the dust cup. To protect the suction motor, a second filter is usually installed upstream of the motor. This second filter prevents smaller dirt particles (dust, powder, etc.) from entering the suction motor. However, over time, dust tends to accumulate on the air intake surface of the second filter, affecting airflow and thus cleaning efficiency. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides a dust cup assembly with a second dust scraping device to clean the second filter and improve cleaning efficiency.

[0004] On the one hand, this utility model provides a dust cup assembly that is detachably installed in a vacuum cleaner, comprising:

[0005] The cup body defines a first space, the first space including a first dust storage chamber;

[0006] A filter assembly, at least partially disposed within the first space, includes a first filter for filtering dust and a second filter located downstream of the first filter, wherein airflow entering the cup flows sequentially through the first filter and the second filter along the airflow direction;

[0007] A second dust scraping device is disposed on the filter assembly for scraping off at least a portion of the dust adhering to the second filter;

[0008] The second dust scraping device is detachably installed on the cup body together with the filter assembly.

[0009] Optionally, the filter assembly defines a second space, the second space including a second mounting cavity for mounting the second filter and a third dust collection chamber for storing at least a portion of the dirt scraped from the second filter, the second filter being detachably mounted in the second mounting cavity.

[0010] Optionally, the second filter has a cylindrical structure, including a bottom surface and a second air inlet surface that is substantially perpendicular to the bottom surface. The second dust scraping device includes an annular second scraper, which is disposed on the outer periphery of the second air inlet surface and is used to scrape off at least part of the dust adhering to the second air inlet surface.

[0011] Optionally, the second filter includes a second air inlet surface, and the second dust scraping device includes a second scraper for scraping off at least a portion of the dust adhering to the second air inlet surface.

[0012] Optionally, the filter assembly defines a third dust storage chamber, into which at least a portion of the dirt scraped off by the second scraping device is stored.

[0013] Optionally, the third dust storage chamber is in fluid communication with the first dust storage chamber through a third ash discharge port, and a third cover is provided at the third ash discharge port.

[0014] Optionally, the filter assembly defines a second space, and the filter assembly further includes a secondary filter disposed in the second space, wherein the secondary filter is disposed downstream of the first filter and upstream of the second filter along the flow direction of the suction airflow.

[0015] Optionally, the filter assembly further defines a second dust storage chamber for storing dust filtered by the secondary filter, and the third dust storage chamber is in fluid communication with the second dust storage chamber.

[0016] On the other hand, this utility model also provides a dust cup assembly, including...

[0017] The main body includes a suction motor that can generate a suction airflow;

[0018] The aforementioned dust cup assembly;

[0019] A drive unit is used to drive the second scraping device to work.

[0020] Optionally, it includes a first dust scraping device for scraping off at least a portion of the dust adhering to the first filter; the driving device simultaneously drives the first dust scraping device and the second dust scraping device.

[0021] On the other hand, this utility model also provides a cleaning system, including

[0022] The aforementioned vacuum cleaner;

[0023] Base station used for docking with the vacuum cleaner.

[0024] This invention provides a dust cup assembly, a vacuum cleaner, and a cleaning system. The dust cup assembly is detachably installed in the vacuum cleaner and includes a cup body and a filter assembly. The cup body defines a first space, which includes a first dust collection chamber. The filter assembly is at least partially disposed within the first space and includes a first filter for filtering dust and a second filter located downstream of the first filter. Airflow entering the cup body flows sequentially through the first and second filters along the airflow direction. A second dust scraping device is disposed on the filter assembly for scraping off at least a portion of the dust adhering to the second filter. The second dust scraping device is detachably installed in the cup body along with the filter assembly. By providing the second dust scraping device to scrape the second filter, the service life of the second filter is extended. Furthermore, by detachably installing the second dust scraping device in the cup body along with the filter assembly, the entire structure becomes easier to assemble and disassemble, and easier to clean. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the cleaning system in one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a sweeping robot in one embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of an upright vacuum cleaner in one embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of a handheld vacuum cleaner in one embodiment of the present invention;

[0029] Figure 5 for Figure 4 The diagram shows the hidden main body of the vacuum cleaner and the structure behind the suction motor (the drive unit can be observed).

[0030] Figure 6 For along Figure 4 Cross-sectional view along the AA direction;

[0031] Figure 7 for Figure 6 Enlarged view of the structure of region B in the middle;

[0032] Figure 8 for Figure 4 The diagram shows the structure of the vacuum cleaner with the main body hidden.

[0033] Figure 9 This is a schematic diagram of the dust cup assembly in one embodiment;

[0034] Figure 10 This is a schematic diagram of a structure in one embodiment where the filter component is separated from the cup body;

[0035] Figure 11 This is a schematic diagram of a vertically placed dust cup assembly in one embodiment;

[0036] Figure 12 For along Figure 11 Cross-sectional view in the CC direction;

[0037] Figure 13 This is a schematic diagram of the structure of a filter component in one embodiment;

[0038] Figure 14 for Figure 13 Cross-sectional view along the DD direction;

[0039] Figure 15 for Figure 13 The diagram shows an exploded view of the filter component.

[0040] Figure 16 This is a cross-sectional schematic diagram of the dust cup assembly in one embodiment (only the first and second filters are included);

[0041] Figure 17 This is a cross-sectional schematic diagram of a filter assembly in one embodiment (including a first filter, a secondary filter, and a second filter).

[0042] Figure 18 This is a cross-sectional schematic diagram of a dust cup assembly in one embodiment (including a first filter, a secondary filter, and a second filter);

[0043] Figure 19 This is a cross-sectional schematic diagram of a dust cup assembly in one embodiment (including a first filter, a secondary filter, and a second filter);

[0044] Figure 20 This is a cross-sectional schematic diagram of the dust cup assembly in one embodiment (the scraper is located at the starting position);

[0045] Figure 21 This is a cross-sectional schematic diagram of the dust cup assembly in one embodiment (the scraper is located at the end position);

[0046] Figure 22 This is an exploded view of the dust cup assembly in one embodiment;

[0047] Figure 23 This is an exploded view of the dust cup assembly from another angle in one embodiment;

[0048] Figure 24 A cross-sectional schematic diagram illustrating a first embodiment of the second filter in the dust cup assembly;

[0049] Figure 25 This is a cross-sectional schematic diagram illustrating a second embodiment of the second filter in the dust cup assembly;

[0050] Figure 26 A cross-sectional schematic diagram illustrating a third embodiment of the second filter in the dust cup assembly;

[0051] Figure 27 This is a cross-sectional schematic diagram illustrating a fourth embodiment of the second filter in the dust cup assembly;

[0052] Figure 28 This is a schematic diagram of the structure of the ash scraping device located at the ash scraping starting point in one embodiment;

[0053] Figure 29 This is a schematic diagram of the structure of the scraping device located at the end point of scraping in one embodiment;

[0054] Figure 30 This is a schematic diagram of the dust cup assembly in one embodiment, showing the positional relationship between the transmission component and the reset component. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0056] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0057] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0058] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] refer to Figure 1 This application discloses a cleaning system 100, which includes a vacuum cleaner 101 and a base station 102 for docking the vacuum cleaner 101. The vacuum cleaner 101 can be a handheld vacuum cleaner 101 or an upright vacuum cleaner 101 (see reference). Figure 3 ), robot vacuum cleaners (reference) Figure 2 (or a type of canister vacuum cleaner, etc.) Multiple vacuum cleaners can share one base station 102.

[0060] After the vacuum cleaner 101 is connected to the base station 102, the cleaning system 100 can generate an exhaust airflow. The exhaust airflow is used to transfer at least part of the dirt stored in the dust cup assembly 10 to the base station 102. The exhaust airflow can be the suction airflow generated by the exhaust motor located in the base station 102, or it can be the airflow generated by the suction motor 201 of the vacuum cleaner 101 after switching through the air duct, or it can be the airflow generated by the suction motor 201 rotating in reverse. These details will not be elaborated here, as the specific structure and working principle can be found in the applicant's previous patent applications and are technologies well known to those skilled in the art.

[0061] The following section uses a handheld vacuum cleaner as an example to describe its structure in detail, including different implementation methods for each component. Without violating the technical principles, the components (including one or more implementation methods) can be combined with each other.

[0062] refer to Figure 4-10 Vacuum cleaner 101 generally includes a main body 20 and a dust cup assembly 10 mounted on the main body 20. The main body 20 generally includes a suction motor 201 capable of generating a suction airflow. The suction airflow generated by the suction motor 201 can collect dirt into the dust cup assembly 10. The main body 20 generally also includes a power device for providing power to the suction motor 201. The power device may be a battery pack mounted on the main body 20, or it may be connected to a municipal power supply via a power cord. The dust cup assembly 10 is used to separate the suction airflow carrying dirt and store at least a portion of the separated dirt. The dust cup assembly 10 includes a cup body 1 defining a first space 11 and a filter assembly 2 at least partially disposed within the first space 11, the filter assembly 2 including a first filter 3 and a second filter 5.

[0063] refer to Figure 4-15 The cup body 1 defines a first space 11 and an air inlet 12 in fluid communication with the first space 11. An airflow guide 6 is provided at the air inlet 12 (see reference). Figure 11 and 12 The first space 11 includes a first dust storage chamber 111. The cup body 1 is generally a columnar hollow structure, and an opening 13 is generally provided at the upper end of the cup body 1 along its axial direction (the direction perpendicular to the plane after the cup body 1 is upright is the axial direction). The side wall 249 or bottom wall 248 of the cup body 1 may be provided with a first dust discharge port 112. Of course, in other embodiments, the shape of the cup body 1 can also be other shapes, which are generally also limited to the opening 13 and the first dust discharge port 112. The filter assembly 2 is at least partially disposed in the first space 11. The filter assembly 2 includes a first filter 3 for filtering dust and a second filter 5 located downstream of the first filter 3. The airflow entering the cup body 1 flows sequentially through the first filter 3 and the second filter 5 along the airflow direction. Figure 14 (See arrow direction shown). At least a portion of the first dust collection chamber 111 is located below the first filter 3 along the axial direction X of the cup body 1 (see reference). Figure 12 The second filter 5 is generally positioned near the opening 13 of the cup body 1. Of course, in other embodiments, the relative positions of the first filter 3 and the second filter 5 can be arranged according to different structures. The structure of a dust cup assembly 10 in one embodiment will be described in detail below with reference to the accompanying drawings. The dust cup assembly 10 includes a cup body 1 and a filter assembly 2 at least partially disposed within the cup body 1. The filter assembly 2 generally includes a base 24, which defines a second space 21 that can accommodate a portion of the second filter 5 (see reference). Figure 16 and 17 ).

[0064] refer to Figure 15-17 The figure shows a specific embodiment. The base 24 includes a cylindrical body 241 and a boss 242 disposed on the outer periphery of the cylindrical body 241. An airflow guide 6 is disposed on the side of the boss 242 near the first filter 3 along the axial direction of the cup body 1. At least one sealing ring 245 is provided on the outer periphery of the boss 242, and the sealing ring 245 is interference-fitted with the inner wall of the cup body 1. The base 24 includes an upper support 243 and a lower support 244. The upper support 243 defines a second mounting cavity 247. The first filter 3 is mounted on the lower support 244, and the second mounting cavity 247 is used to mount the second filter 5. The second filter 5 is located downstream of the first filter 3. The arrows in the figure indicate the direction of airflow within the dust cup assembly 10. To facilitate the disassembly or replacement of the second filter 5, a first cup cover 25 is also included above the base 24. The first cup cover 25 defines a mounting hole 251, and the second filter 5 is detachably mounted in the mounting hole 251.

[0065] After vacuum cleaner 101 cleans up the dust, some dust will adhere to the surfaces of the first filter 3 and the second filter 5. If the accumulated dust increases, it will affect the suction power of vacuum cleaner 101, thus impacting cleaning efficiency. (Reference) Figure 16-23 To address the aforementioned issues, the dust cup assembly 10 includes a dust scraping assembly 30, which comprises a second dust scraping device 302 for scraping off at least a portion of the dust adhering to the second filter 5. The second dust scraping device 302 is disposed on the filter assembly 2 and is used to scrape off at least a portion of the dust adhering to the second filter 5. The second filter 5 is located in a second space 21 defined by the filter assembly 2. The second space 21 includes a second mounting cavity 247 for mounting the second filter 5 and a third dust storage chamber 23 for storing at least a portion of the dirt scraped off from the second filter 5. The second filter 5 is detachably mounted in the second mounting cavity 247. Alternatively, the second filter 5 can also be detachably mounted to the main body 20, remaining on the main body 20 when the dust cup assembly 10 is removed, and not being detachable from the dust cup assembly 10.

[0066] refer to Figure 24-27 The second filter 5 can be implemented in various ways, including by means of a HEPA filter, filter cotton, or other air-filtering materials. Figure 24 and 25 As shown in the figure, the arrows indicate the direction of movement of the second scraper 321. In one embodiment, the second filter 5 has a cylindrical structure, including a bottom surface 51 and a second air inlet surface 52 that is substantially perpendicular to the bottom surface 51. The surface opposite to the second air inlet surface 52 is the second air outlet surface. The second dust removal device 302 includes a second scraper 321, which is provided with bristles or scraper strips, etc. The second scraper 321 is disposed on the outer periphery of the second air inlet surface 52 and is used to scrape off at least a portion of the dust adhering to the second air inlet surface 52. The bottom surface 51 may or may not have an air inlet hole. When the second filter 5 has a cylindrical structure, different scrapers can be used to remove dust. In one embodiment, the second scraper 321 is an annular structure and is disposed at a position corresponding to the second air inlet surface 52 (when the outer peripheral surface is the second air inlet surface 52, the second scraper 321 is disposed on the outer periphery; when the inner peripheral surface is the second air inlet surface 52, the second scraper 321 is disposed on the inner periphery), scraping the second air inlet surface 52. The driving device 202 drives the second scraper 321 to reciprocate along the axial direction of the cylindrical structure (see reference). Figure 24 This allows for the scraping action. In another embodiment, the second scraper 321 is elongated and extends substantially parallel to the axial direction along the cylindrical structure. The second scraper 321 can rotate around the second air inlet surface 52 (see reference). Figure 25The second scraping element 321 can also be a sleeve structure, which is set at a position corresponding to the second air inlet surface 52 (when the outer peripheral surface is the second air inlet surface 52, the second scraping element 321 is set on the outer peripheral surface; when the inner peripheral surface is the second air inlet surface 52, the second scraping element 321 is set on the inner peripheral surface). When performing the scraping action, it is only necessary to rotate the second scraping element 321 by a certain angle to achieve the scraping action. The structure that realizes the above scraping action may include a crank-slider mechanism (realizing the conversion between reciprocating linear motion and rotary motion), a planetary gear system (composed of a sun gear, planet gears and a gear ring, which realizes rotary motion through multi-gear meshing), a worm gear transmission (transmitting rotary motion through gear meshing), a slewing bearing structure (turntable bearing realizes rotary motion), etc., which will not be described in detail here.

[0067] like Figure 26 and 27 As shown in the figure, the arrow indicates the direction of movement of the second scraper 321. In other embodiments, the second filter 5 is generally flat and includes a second air inlet surface 52. The second dust removal device 302 includes a second scraper for scraping off at least a portion of the dust adhering to the second air inlet surface 52. The second air inlet surface 52 is essentially a plane (the wavy HEPA structure is also essentially a plane overall). The second scraper 321 only needs to move along this plane to achieve the dust removal action. The second air inlet surface 52 can be positioned relative to the axial direction X of the cup body 1. Figure 12 The X direction shown is perpendicular to the axial direction X of the cup body 1, and can also be at a certain angle. The movement of the second scraper 321 can be achieved by the following structures: a gear and rack mechanism (the horizontally moving rack drives the meshing gear to rotate), a wedge block mechanism (an inclined plane mechanism, in which the horizontally moving wedge block pushes the longitudinal slider through the inclined plane contact, and the direction is changed by using the inclined plane angle); a cross guide rail mechanism (orthogonal slider, in which the horizontal slider and the longitudinal slider are in contact through the inclined plane or roller, and the motion is directly transmitted), a cam mechanism (the horizontally moving cam profile pushes the follower to move along the longitudinal direction, and the motion trajectory is controlled by the cam shape), and other related mechanisms, which will not be described in detail here.

[0068] In one implementation, such as Figure 10As shown, to facilitate the assembly and disassembly of the dust cup assembly 10, the second dust scraping device 302 is detachably installed on the cup body 1 along with the filter assembly 2. This allows the user to easily remove the entire filter assembly 2 from the opening 13 of the cup body 1 when cleaning the first filter 3. Alternatively, in other embodiments, the filter assembly 2 can be configured to be fixed and not removable from the cup body 1; the user can then simply remove the first filter 3 and the second filter 5 from the dust cup assembly 10. Or, the user can clean the first filter 3 from the first dust discharge port 112 and only need to replace the second filter 5.

[0069] Continue to refer to Figure 22 and 23 In order to achieve automatic cleaning of the first filter 3, the dust removal assembly 30 also includes a first dust removal device 301 for scraping off at least part of the dust adhering to the first filter 3.

[0070] The first filter 3 can be implemented in different ways. In one implementation, the first filter 3 is cylindrical. Taking a cylindrical structure as an example, the structure of the first filter 3 and the first dust-scraping device 301 will be described in detail. Generally, the first filter 3 is a mesh structure made of metal material. The first filter 3 is provided with multiple air inlets, which together form a first air inlet surface, which is generally an annular curved surface. The first filter 3 can also be molded from plastic material. Airflow enters the interior of the first filter 3 from the first air inlet surface. The first dust-scraping device 301 includes a first scraper 311. The structure of the first scraper 311 can be basically similar to the structure of the second scraper 321 (when the second filter 5 is a cylindrical structure), and will not be described in detail here. The movement of the first dust-scraping device 301 can be achieved through the transmission structure described above.

[0071] refer to Figure 9-15 As shown in the embodiment, the filter assembly 2 includes an annular first filter 3. A first scraper 311 is disposed on the filter assembly 2 for scraping off at least a portion of the dust adhering to the first filter 3. The scraper is provided with bristles or scraper strips, etc. The first dust removal device also includes an airflow guide 6 (see reference). Figure 12 The airflow guide 6 is used to guide the airflow entering the first space 11 from the air inlet 12. The first scraper 311 moves together with the airflow guide 6, and is located below the air inlet 12 along the axial direction of the cup body 1. The first scraper 311 is a scraper made of rubber material, which can be installed below the airflow guide 6 by rubber coating. The two can also be fixed in other ways, as long as the gap between them is very small or non-existent. The first scraper 311 is positioned below the air inlet 12, and moves together with the airflow guide 6. Further, refer to Figure 20 and21 The upper edge 61 of the airflow guide 6 is generally higher than the highest point of the air inlet 12, effectively increasing the area of ​​the airflow guide. When the vacuum cleaner 101 is working, the airflow flows directly along the guiding direction of the airflow guide 6. Dust is less likely to accumulate between the airflow guide 6 and the base 24, making it easier for users to clean. The upper edge 61 of the airflow guide 6 is configured to protrude outward (along the radial direction of the cup body). The upper edge can be press-fitted with the inner wall of the cup body 1, or there can be a certain distance between the upper edge and the cup body 1. The upper edge mainly prevents dust from entering the space between the airflow guide 6 and the base 24 through the gap.

[0072] In another embodiment, the first filter 3 can also be a flat, porous structure (not shown in the figures). In this case, the first air inlet surface is a plane. The first dust scraping device 301 can be a strip-shaped scraper that can reciprocate on the first air inlet surface to achieve the dust scraping action. The movement of the first dust scraping device 301 can be achieved through the transmission structure described above. In other embodiments, the first filter 3 can also be a trapezoidal or conical filter. The first scraping member 311 can scrape its surface.

[0073] refer to Figure 8 , 28 -30, to drive the first scraping device 301 and the second scraping device 302, the vacuum cleaner 101 is also equipped with a drive device 202, which is used to drive the first scraping device 301 and / or the second scraping device 302 to work. In one embodiment, the drive device 202 is used to drive the first scraping device 301 and / or the second scraping device 302 to work simultaneously. The drive device 202 can be a manual drive device or an automatic drive device. The manual drive device 202 requires the user to manually operate the push rod to complete the scraping operation. The automatic drive device 202 includes a driver 203, which is controlled by a controller in the vacuum cleaner 101. The controller has a corresponding program set in it, and the controller controls the first scraping device 301 and the second scraping device 302 to perform the scraping action according to the program. The scraping devices are generally located at the starting position of the scraping (e.g., Figure 20 and 28 (as shown) and the end position of the putty scraping (as shown) Figure 21 and 29 The device moves between the points shown in the diagram to complete the scraping action. Of course, the controller can also control the scraping device to perform multiple scraping actions continuously to improve the cleanliness of the filter.

[0074] In other embodiments, the drive device 202 can also drive the first scraping device 301 and the second scraping device 302 respectively according to the control program. The drive device 202 can be equipped with two drivers 203, which drive the first scraping device 301 and the second scraping device 302 respectively. Of course, the drive device 202 can also include two manual drive components, allowing the user to manually drive the first scraping device 301 and the second scraping device 302 using different drive components. The drive device 202 includes drivers 203 and a transmission mechanism 204. The drivers 203 drive the scraping devices to complete the scraping action through the transmission mechanism 204.

[0075] Continue to refer to Figures 28-30 The figure illustrates the structure and working principle of the transmission mechanism 204 and its related mechanisms in a specific embodiment. The transmission mechanism 204 includes a screw 206 and a transmission rod 205, with the screw 206 connected to the driver 203. The components in the transmission mechanism 204 can be made of metal or plastic, which will not be detailed here. The transmission rod 205 moves axially along the screw 206 as the screw 206 rotates. The direction of movement of the transmission rod 205 differs depending on the rotation direction of the screw 206. The first dust-scraping device 301 includes a first scraping element 311 and a first transmission element 312 connected to the first scraping element 311. The second dust-scraping device 302 includes a second scraping element 321 and a second transmission element 322 connected to the second scraping element 321. Both the first transmission element 312 and the second transmission element 322 are located on the inner side of the cup body 1 (see reference). Figure 30 ).

[0076] The transmission mechanism 204 also includes a pusher 303 for pushing the first transmission member 312 and the second transmission member 322. The pusher 303 can simultaneously push the first transmission member 312 and the second transmission member 322. The pusher 303 is fixedly connected to one of the first transmission member 312 and the second transmission member 322. When the filter assembly 2 is separated from the cup body 1, the pusher 303 is separated from the other of the first transmission member 312 and the second transmission member 322. This facilitates the disassembly of the dust cup assembly 10.

[0077] refer to Figures 28-30In one specific embodiment, the first scraping device 301 includes a first scraping member 311 and a first transmission member 312 connected to the first scraping member 311. The second scraping device 302 includes a second scraping member 321 and a second transmission member 322 connected to the second scraping member 321. The first transmission member 312 has a rod-like structure and is substantially parallel to the axial direction X of the cup body 1. The second transmission member 322 also has a rod-like structure and is substantially parallel to the axial direction X of the cup body 1. Thus, when the first transmission member 312 and the second transmission member 322 move, the first scraping member 311 and the second scraping member 321 move in the same direction and along the axial direction of the cup body 1.

[0078] refer to Figure 26 and 27 In another embodiment, the first scraping device 301 includes a first scraper 311 and a first transmission member 312 connected to the first scraper 311; the second scraping device 302 includes a second scraper 321 and a second transmission member 322 connected to the second scraper 321. The first scraper 311 can move along the axial direction X of the cup body 1, and the movement direction of the second scraper 321 is at a certain angle to the axial direction of the cup body 1. For example, the second scraper 321 moves in a direction substantially perpendicular to the axial direction of the cup body 1. In this case, the second filter 5 is a flat filter such as a HEPA filter or a sponge structure. The structure of the second filter 5 has been described above and will not be detailed here.

[0079] In another embodiment, the vacuum cleaner 101 comprises a main body 20, a dust cup assembly 10, and a drive unit 202. The main body 20 includes a suction motor 201 for generating a suction airflow. The dust cup assembly 10 is detachably mounted to the cup body 1. The drive unit 202 drives a first dust scraper 301 and a second dust scraper 302, and the drive unit 202 simultaneously drives a first transmission member 312 and a second transmission member 322 via a pusher 303. The pusher 303 is connected to the drive unit 202. When the dust cup assembly 10 is separated from the main body 20 of the vacuum cleaner 101, the first transmission member 312 separates from the pusher 303, and simultaneously the second transmission member 322 separates from the pusher 303.

[0080] Since the dust cup assembly 10 can be separated from the main body 20, and the transmission component and the driver 203 (or part of the transmission mechanism 204) are not fixedly connected, when the drive shaft of the driver 203 or the transmission mechanism 204 connected to it moves back, the transmission component will separate from the driver 203 (or part of the transmission mechanism 204). At this time, in order to reset the scraping component, a reset device is required. (Reference) Figures 28-30In one specific embodiment, the dust cup assembly 10 includes a first reset member 313 and a second reset member 323. The first reset member 313 is disposed on the outer side of the first space 11. The first reset member 313 is configured to drive the first scraping member 311 from the scraping end position to the scraping start position. Alternatively, the first reset device is configured to simultaneously drive the first scraping member 311 and the second scraping member 321 from their corresponding scraping end positions to their corresponding scraping start positions. The second reset member 323 is disposed on the inner side of the cup body 1. The second reset member 323 is configured to drive the second scraping member 321 from the scraping end position to the scraping start position; the second reset device is configured to simultaneously drive the first scraping member 311 and the second scraping member 321 from their corresponding scraping end positions to their corresponding scraping start positions.

[0081] Continue to refer to Figure 23 , 28 -30. The reset component generally includes a rod-shaped structure and a spring that cooperates with the rod-shaped structure. The rod-shaped structure is generally made of metal, but it can also be made of other materials with relatively high hardness. The spring can extend and retract along the rod-shaped structure. The force generated by the spring can drive the scraper component to reset through a structure (push member 303 or other structure fixed to the transmission member). The distance from the second reset member 323 to the central axis of the cup body 1 in the radial direction of the cup body 1 is less than the distance from the first transmission member 312 to the central axis of the cup body 1. The distance from the first reset member 313 to the central axis of the cup body 1 in the radial direction of the cup body 1 is greater than the distance from the second transmission member 322 to the central axis of the cup body 1. This structural arrangement can effectively utilize the space within the dust cup assembly 10. The reset component can also be other forms of structures that can realize the reset of the scraper component.

[0082] In another embodiment, the dust cup assembly 10 may include only the first reset member 313, which is configured to simultaneously drive the first scraper 311 and the second scraper 321 from their corresponding scraping end positions to their corresponding scraping start positions.

[0083] In another embodiment, the dust cup assembly 10 may include only the second reset member 323, which is disposed on the inner or outer side of the cup body 1. The second reset device is configured to simultaneously drive the first scraper 311 and the second scraper 321 from their corresponding scraping end positions to their corresponding scraping start positions.

[0084] The filter assembly 2 includes a first cup lid 25 and a base 24, which together define a receiving space for accommodating at least a portion of the second transmission member 322. This allows for better installation of the second transmission member 322, saving space.

[0085] refer to Figure 15-21 To improve filtration efficiency, the filter assembly 2 further includes a secondary filter 4. The filter assembly 2 defines a second space 21, and the secondary filter 4 is disposed in the second space 21. The secondary filter 4 is disposed downstream of the first filter 3 and upstream of the second filter 5 along the flow direction of the suction airflow. The secondary filter 4 includes at least one cyclone cone 41, which is in fluid communication with the third dust collection chamber 23 and the second dust collection chamber 22. To improve cyclone separation efficiency, the secondary filter 4 includes multiple cyclone cones 41, the outlet 42 of which is in fluid communication with the third dust collection chamber 23 (e.g., ...). Figure 17 (As shown). The structure of the secondary filter 4 is conventional to those skilled in the art and will not be described in detail here. This application mainly focuses on the positional relationship of the secondary filter 4 in the dust cup assembly 10.

[0086] Continue to refer to Figure 15 , 17 -21, the first filter 3 and the lower bracket 244 together define a first mounting cavity 246 for mounting a secondary filter 4, which is located downstream of the first filter 3 and upstream of the second filter 5. A third dust storage chamber 23 is defined between the second filter 5 and the secondary filter 4, and at least a portion of the dirt scraped off by the second dust scraping device 302 is stored in the third dust storage chamber 23.

[0087] refer to Figure 14 and 17 The projection of the second filter 5 onto the secondary filter 4 in the direction thereof at least partially coincides with the air outlet 42. The upper support 243 includes a bottom wall 248 and a side wall 249 located on the outer periphery of the bottom wall 248. The upper surface of the bottom wall 248 is curved, and the center of the curved surface is lower than the outer periphery of the curved surface along the axial direction of the cup body 1. With this configuration, dust in the third dust chamber 23 can be quickly concentrated at the air outlet 42 and then guided into the second dust chamber 22 or the first dust chamber 111.

[0088] refer to Figure 16-21 The following details the process of emptying the dust from the dust cup assembly 10. The dust in the dust cup assembly 10 can be manually emptied by the user, who simply opens the cover of the dust cup assembly 10 and empties each dust chamber.

[0089] In some embodiments, when the dust cup assembly 10 includes only the first filter 3 and the second filter 5 (e.g.) Figure 16(As shown). The first space 11 includes a first dust storage chamber 111, where at least a portion of the dirt scraped by the first dust scraper 301 is stored. The filter assembly 2 defines a third dust storage chamber 23, where at least a portion of the dirt scraped by the second dust scraper 302 is stored. The third dust storage chamber 23 and the first dust storage chamber 111 are fluidly connected via a third dust discharge port 231, where a third cover 232 is provided. When there is an exhaust airflow, the third cover 232 can be opened by the exhaust airflow. Dust in the third dust storage chamber 23 is guided to the first dust storage chamber 111. Of course, in other embodiments, the third dust storage chamber 23 can be relatively independent of the first dust storage chamber 111. In this case, the first cover 113 can simultaneously open the first dust discharge port 112 and the third dust discharge port 231.

[0090] In other embodiments, when the dust cup assembly 10 includes a first filter 3, a secondary filter 4, and a second filter 5, the airflow sequentially flows through the first filter 3, the secondary filter 4, and the second filter 5 (e.g., ...). Figure 14 (As indicated by the middle arrow). Reference Figure 17-19 The dust cup assembly 10 includes a first dust collection chamber 111, a second dust collection chamber 22, and a third dust collection chamber 23. Specifically, the first dust collection chamber 111 may be defined by the cup body 1. The second dust collection chamber 22 and the third dust collection chamber 23 are defined by the filter assembly 2. The filter assembly 2 also defines a second dust collection chamber 22 for storing dust separated by the secondary filter 4.

[0091] In one embodiment, the third dust storage chamber 23 is in fluid communication with the second dust storage chamber 22. The communication methods between the third dust storage chamber 23 and the second dust storage chamber 22 can be different. The third dust storage chamber 23 can be in fluid communication with the second dust storage chamber 22 via a cyclone cone 41 (see reference). Figure 17 The third dust chamber 23 and the second dust chamber 22 may not be connected to each other through the cyclone cone 41, but through other channels (not shown in the figure). Specifically, the filter assembly 2 includes a first channel for connecting the third dust chamber 23 and the second dust chamber 22.

[0092] In other embodiments, the third dust storage chamber 23 is not in fluid communication with the second dust storage chamber 22, and the third dust storage chamber 23 is directly connected to the first dust storage chamber 111 (see reference). Figure 18The third dust storage chamber 23 is fluidly connected to the first dust storage chamber 111 via a third ash discharge port 231, which is equipped with a third cover 232. When the third cover 232 is opened, the dust in the third dust storage chamber 23 can be directly discharged into the first dust storage chamber 111. Simultaneously, the second dust storage chamber 22 is connected to the first dust storage chamber 111. The second dust storage chamber 22 is fluidly connected to the first dust storage chamber 111 via a second ash discharge port 221, which is equipped with a second cover 222. At this time, the second cover 222 and the third cover 232 can be integrated into a single cover plate. When the cover plate is opened, dust from both the third dust storage chamber 23 and the second dust storage chamber 22 can simultaneously enter the first dust storage chamber 111.

[0093] In another implementation, refer to Figure 19 The first ash storage chamber 111, the second ash storage chamber 22, and the third ash storage chamber 11 can operate independently. When evacuation is required, the corresponding covers can be opened. Furthermore, to simplify the structure, one cover can open three ash discharge ports simultaneously.

[0094] In some embodiments, after the vacuum cleaner 101 or dust cup assembly 10 is connected to the base station 102, it can be emptied by the exhaust airflow. At this time, the first cover 113, the second cover 222, and the third cover 232 can all be forcibly opened by the exhaust airflow. The covers can also be passively opened after being connected to the base station 102, and then the exhaust airflow transfers the dust in the dust cup assembly 10 to the base station 102. During the emptying process, the controller controls the drive device to drive the movement of the dust scraping device to scrape off the dust on the filter. After the dust is scraped off, it is directly emptied into the base station 102. The control process has also been described in the applicant's previous patents and will not be detailed here.

[0095] Although the embodiments of this application have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this application is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A dust cup assembly removably mountable to a vacuum cleaner, characterized by, include: The cup body defines a first space, the first space including a first dust storage chamber; A filter assembly, at least partially disposed within the first space, includes a first filter for filtering dust and a second filter located downstream of the first filter, wherein airflow entering the cup flows sequentially through the first filter and the second filter along the airflow direction; A second dust scraping device is disposed on the filter assembly for scraping off at least a portion of the dust adhering to the second filter; The second dust scraping device is detachably installed on the cup body together with the filter assembly.

2. The dust cup assembly as described in claim 1, characterized in that, The filter assembly defines a second space, the second space including a second mounting cavity for mounting the second filter and a third dust storage chamber for storing at least a portion of the dirt scraped from the second filter, the second filter being detachably mounted in the second mounting cavity.

3. The dust cup assembly as described in claim 1 or 2, characterized in that, The second filter has a cylindrical structure and includes a bottom surface and a second air inlet surface that is substantially perpendicular to the bottom surface. The second dust scraping device includes an annular second scraper, which is disposed on the outer periphery of the second air inlet surface and is used to scrape off at least a portion of the dust adhering to the second air inlet surface.

4. The dust cup assembly as described in claim 1 or 2, characterized in that, The second filter includes a second air inlet surface, and the second dust scraping device includes a second scraper for scraping off at least a portion of the dust adhering to the second air inlet surface.

5. The dust cup assembly as described in claim 1, characterized in that, The filter assembly defines a third dust storage chamber, into which at least a portion of the dirt scraped off by the second dust scraper is stored.

6. The dust cup assembly as described in claim 2 or 5, characterized in that, The third dust storage chamber is in fluid communication with the first dust storage chamber through a third ash outlet, and a third cover is provided at the third ash outlet.

7. The dust cup assembly as described in claim 5, characterized in that, The filter assembly defines a second space, and the filter assembly further includes a secondary filter disposed in the second space, wherein the secondary filter is disposed downstream of the first filter and upstream of the second filter along the flow direction of the suction airflow.

8. The dust cup assembly as described in claim 7, characterized in that, The filter assembly further defines a second dust storage chamber for storing dust filtered by the secondary filter, and the third dust storage chamber is in fluid communication with the second dust storage chamber.

9. A vacuum cleaner comprising: include The main body includes a suction motor that can generate a suction airflow; Dust cup assembly as described in any one of claims 1-8; A drive unit is used to drive the second scraping device to work.

10. The vacuum cleaner as described in claim 9, characterized in that, It includes a first dust scraping device for scraping off at least a portion of the dust adhering to the first filter; the driving device simultaneously drives the first dust scraping device and the second dust scraping device.

11. A cleaning system characterized by, include The vacuum cleaner as described in claim 9 or 10; Base station used for docking with the vacuum cleaner.

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