Dust collector

Abstract

The utility model belongs to the technical field of cleaning tools, and particularly relates to a dust collector, which comprises a dust cup, an air inlet, an air outlet, an air inlet and an air outlet, the filter element is arranged in the dust cup, the filter element is annularly arranged, and dust gas enters the dust cup through the air inlet, flows through the filter element and is discharged from the air outlet; the cleaning unit is arranged in the filter element, and the cleaning unit moves in the circumferential direction of the inner surface of the filter element and scrapes the filter element. And the driving unit is used for driving the cleaning unit to move. According to the dust collector provided by the utility model, the cleaning unit is arranged near the surface of the filter element and can impact the filter element, so that the filter element is induced to vibrate, dust attached to the surface of the filter element is shaken off, an airflow channel of the dust collector is ensured to be unblocked, and the working efficiency of the dust collector is improved; the cleaning operation of the cleaning unit on the filter element is completed under the condition that the machine is not disassembled, so that the pollution to the external environment can be avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning tools, and in particular relates to a vacuum cleaner. Background Art

[0002] The dust cup of a vacuum cleaner is usually equipped with a filter. When the airflow passes through the dust cup, the filter can intercept solid waste in the dust cup, thereby collecting solid waste. After using the vacuum cleaner for a long time, a lot of dust will be absorbed on the surface of the filter, which will weaken the suction power of the machine, so users are required to clean the filter regularly. When cleaning the filter, it is necessary to remove the dust cup from the vacuum cleaner host, and then remove the filter from the dust cup. After cleaning, the filter and dust cup are put back into the vacuum cleaner host. This operation process is extremely cumbersome, and the user's hands and the surrounding environment will be polluted when cleaning the filter, affecting the user experience. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a vacuum cleaner capable of automatically cleaning a filter.

[0004] In order to achieve the above-mentioned object and other related objects, the utility model provides a vacuum cleaner, comprising:

[0005] A dust cup having an air inlet thereon, and the vacuum cleaner having an air outlet thereon;

[0006] A filter element is placed in the dust cup, the filter element is arranged in a ring shape, dust gas enters the dust cup through the air inlet, flows through the filter element, and is discharged from the air outlet;

[0007] A cleaning unit is placed in the filter element. The cleaning unit moves circumferentially along the inner surface of the filter element and scrapes against the filter element.

[0008] The driving unit is used to drive the cleaning unit to move.

[0009] In an optional embodiment of the present invention, the cleaning unit includes at least one blade, and the blade extends along the longitudinal direction or circumferential direction of the filter element.

[0010] In an optional embodiment of the present invention, the filter element includes a filter material, and the surface of the filter material has wavy folds. The cleaning unit is configured to scrape the surface of the filter material and impact the raised parts of the wavy folds when the inner surface of the filter element moves circumferentially.

[0011] In an optional embodiment of the present invention, the cleaning unit is rotatably arranged relative to the filter element, and an end of the cleaning unit forms an interference fit with a raised portion of the wavy folds.

[0012] In an optional embodiment of the present invention, at least the portion of the blade that contacts the filter material is made of elastic material.

[0013] In an optional embodiment of the present invention, at least the portion of the cleaning unit that contacts the filter material is made of TPU, TPE, PVC, rubber or synthetic cloth.

[0014] In an optional embodiment of the present invention, a host is further included, the dust cup is detachably connected to the host, and the host includes a fan assembly.

[0015] In an optional embodiment of the present invention, a cleaning bracket is further included, wherein the cleaning bracket is connected to the main unit, the cleaning bracket protrudes into the dust cup, and the cleaning unit and the driving unit are installed on the cleaning bracket.

[0016] In an optional embodiment of the utility model, the cleaning bracket is installed at the air suction port of the fan assembly, the filter element is a cylindrical structure, and the cleaning bracket is inserted into the center hole of the filter element; the cleaning bracket is provided with a hollow portion for connecting the air suction port and the center hole of the filter element.

[0017] In an optional embodiment of the present invention, a controller and a control signal input element are further included, the drive unit and the control signal input element are electrically connected to the controller, and the controller is configured to control the working state of the drive unit according to the signal input by the control signal input element.

[0018] The technical effect of the utility model is that the vacuum cleaner provided by the utility model is provided with a cleaning unit near the surface of the filter element. The cleaning unit can impact the filter element, thereby inducing the filter element to vibrate, so as to shake off the dust attached to the surface of the filter element, ensure the smooth flow channel of the vacuum cleaner, and improve the working efficiency of the vacuum cleaner. The cleaning operation of the filter element by the cleaning unit is completed without disassembling the machine, which can avoid pollution to the external environment and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an exploded view of a vacuum cleaner provided by an embodiment of the utility model;

[0020] Figure 2 is an exploded view of the vacuum cleaner provided by an embodiment of the utility model from another perspective;

[0021] Figure 3 is a cross-sectional view of a vacuum cleaner provided by an embodiment of the utility model;

[0022] Figure 4 yes Figure 3 AA section view;

[0023] Figure 5 It is an exploded view of the cleaning unit, the driving unit and the cleaning bracket provided in the embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of a first alternative structure of a cleaning unit provided by an embodiment of the utility model;

[0025] Figure 7 is a schematic diagram of a second alternative structure of a cleaning unit provided in an embodiment of the utility model;

[0026] Figure 8 is a schematic diagram of a third alternative structure of a cleaning unit provided by an embodiment of the utility model;

[0027] Fig. 9 is a schematic diagram of a fourth alternative structure of a cleaning unit provided by an embodiment of the utility model;

[0028] Explanation of the reference numerals: 10, main unit; 11, fan assembly; 111, air inlet; 12, air duct; 13, handle; 20, dust cup; 21, air inlet; 22, air outlet; 30, filter element; 31, filter material; 40, cleaning unit; 41, driving unit; 42, cleaning bracket; 421, hollow part. DETAILED DESCRIPTION

[0029] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the illustrations provided in the following embodiments are only used to schematically illustrate the basic concept of the present invention, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0031] A vacuum cleaner is a commonly used cleaning tool. The main structure of a vacuum cleaner includes a fan, a dust cup, an air duct and other components. The dust cup is connected in series between the air duct and the fan, and a filter is installed in the dust cup. When the air flow passes through the dust cup, the filter can intercept the solid waste carried in the air flow in the dust cup, thereby realizing the collection of the garbage.

[0032] After the vacuum cleaner has been used for a long time, a large amount of dust will adhere to the surface of the filter (especially the windward side), and the dust will block the airflow channel, thereby weakening the suction force of the vacuum cleaner and affecting the cleaning effect. In the prior art, when the user cleans the filter, it is necessary to remove the dust cup from the vacuum cleaner main unit, and then take the filter out of the dust cup. After cleaning, the filter and the dust cup are installed back into the vacuum cleaner main unit. This operation process is extremely cumbersome, and the user will pollute his hands and the surrounding environment when cleaning the filter. For this reason, the vacuum cleaner provided by the utility model is provided with a cleaning unit near the surface of the filter element. The cleaning unit can impact the filter element, thereby inducing the filter element to vibrate, so as to shake off the dust attached to the surface of the filter element, ensure the smooth flow channel of the vacuum cleaner, and improve the working efficiency of the vacuum cleaner. The cleaning operation of the filter element by the cleaning unit is completed without disassembling the machine, which can avoid pollution to the external environment and improve the user's experience.

[0033] See also Figure 1-9 As shown, the technical solution of the utility model is described in detail below in conjunction with specific embodiments:

[0034] See also Figure 1-4 As shown, in order to more intuitively introduce the technical solution and beneficial effects of the utility model, an embodiment of the utility model provides a handheld vacuum cleaner, but it should be noted that the main improvement of the utility model is to add a self-cleaning function to the filter element, and the filter element is a necessary structure of almost all types of vacuum cleaners. Therefore, the application scenario of the utility model is not limited to handheld vacuum cleaners, but can be applied to all types of vacuum cleaners, such as floor-standing vacuum cleaners, vehicle-mounted vacuum cleaners, sweepers, etc.

[0035] See also Figure 1-4 As shown, the vacuum cleaner provided in the embodiment of the utility model mainly includes a dust cup 20, a filter element 30, a cleaning unit 40 and a driving unit 41. In addition, the vacuum cleaner should also include necessary structures such as a main unit 10 and an air duct 12, wherein the main unit 10 includes a fan assembly 11.

[0036] In a specific embodiment, the dust cup 20 is provided with an air inlet, and the vacuum cleaner is provided with an air outlet; the filter element 30 is placed in the dust cup 20, and the filter element 30 is arranged in a ring shape, and the dust enters the dust cup 20 through the air inlet, flows through the filter element 30, and is discharged from the air outlet. The fan assembly 11 can be installed in a housing, and the housing can be designed into any shape according to the function and appearance requirements, such as in Figure 1 , 2In the handheld vacuum cleaner shown in FIG. 3 , a handle portion 13 may be provided on the housing for easy holding by hand. In addition, in the handheld vacuum cleaner, the rigid air duct 12 is more convenient for the user to perform cleaning operations, so the air duct 12 may also be integrated into the housing, or part of the air duct 12 may be integrated into the housing. In the illustrated embodiment, the air duct 12 is integrated on the side of the air suction port of the fan assembly 11. When the dust cup 20 is connected to the main unit 10, the air inlet 21 and the air outlet 22 of the dust cup 20 are connected to the air duct 12 and the air suction port 111 of the fan assembly 11, respectively.

[0037] It should be understood that in a non-handheld vacuum cleaner, the handle portion 13 is not necessary, and the air duct 12 can also be realized by an external hose.

[0038] See also Figure 1 , 3 As shown, the filter element 30 is accommodated in the dust cup 20. In a specific embodiment, the filter element 30 may include, for example, a filter material 31 and a bracket for supporting and fixing the filter material 31. The material of the filter material 31 is not particularly limited. In a specific embodiment, the filter material 31 may be made of, for example, glass fiber, polypropylene, and other materials. These materials have a fine fiber structure and can effectively capture particles in the air, such as dust, pollen, bacteria, etc., to improve the air purification effect.

[0039] The cleaning unit 40 is movably arranged along a preset track relative to the filter element 30, and the cleaning unit 40 is configured to scrape the filter element 30 when it moves along the preset track. The driving unit 41 is used to drive the cleaning unit 40 to move along the preset track. It should be understood that the specific shape of the cleaning unit 40 is not unique. For example, in some specific embodiments, the cleaning unit 40 can be configured to be sheet-shaped, columnar, or block-shaped.

[0040] The utility model utilizes the movement of the cleaning unit 40 to scrape the filter element 30, and this scraping causes the filter element 30 to vibrate, thereby causing the dust attached to the surface of the filter element 30 to fall off. The cleaning unit 40 is driven by a driving unit 41, which is an electric component, such as a motor. The user can complete the self-cleaning operation of the filter element 30 by controlling the start and stop of the driving unit 41. The entire process does not require the filter element 30 to be disassembled, thereby improving the user experience.

[0041] See also Figure 4As shown, in an optional embodiment of the utility model, the surface of the filter material 31 has wavy folds, and the cleaning unit 40 is equipped to scrape the surface of the filter material 31 and impact the raised portion of the wavy folds when it moves along the preset trajectory. It should be understood that in this embodiment, since the surface of the filter material 31 has wavy folds, the cleaning unit 40 only needs to scrape the surface of the filter material 31 along a smooth path to produce a pulsating impact with the raised portion of the wavy folds, without the need for a complex transmission design. In some other embodiments, when there are no wavy folds on the surface of the filter material 31, the pulsating impact on the filter material 31 can also be achieved by planning the movement trajectory of the cleaning unit 40, for example, the cleaning unit 40 can be set to a linear reciprocating motion structure.

[0042] See also Figure 4 As shown, in an optional embodiment of the present invention, the filter material 31 is annular, and the cleaning unit 40 is located in the central hole of the filter material 31. The cleaning unit 40 moves circumferentially along the inner surface of the filter element 30 and scrapes the filter element 30. Specifically, the cleaning unit 40 is rotatably arranged relative to the filter element 30, and the end of the cleaning unit 40 forms an interference fit with the raised portion of the wavy pleats.

[0043] See also Figure 4 As shown, in a specific embodiment, the rotation center of the cleaning unit 40 can be located on the axis of the filter element 30, so that the cleaning unit 40 can continuously scrape along the inner side of the filter element 30, ensuring that the entire circumference of the filter element 30 can be effectively cleaned. In some other embodiments, the rotation center of the cleaning unit 40 may not be set on the axis of the filter element 30, for example, the rotation center of the cleaning unit 40 is set eccentrically relative to the axis of the filter element 30, in which case the cleaning unit 40 can still scrape a part of the filter element 30, and in order to increase the scraping area, multiple such cleaning units 40 can be provided, and each cleaning unit 40 can scrape different areas of the filter element 30 respectively.

[0044] In a further embodiment, when the axial dimension of the filter element 30 is large, the cleaning ability of a single cleaning unit 40 is not sufficient to cover the entire circumference of the filter element 30. In this case, a plurality of such cleaning units 40 may be arranged along the axial direction of the filter element 30, or a displacement action may be added to the cleaning unit 40 so that a single cleaning unit 40 can cover a larger cleaning area.

[0045] like Figure 8As shown, for example, a displacement action along the axial direction of the filter element 30 can be added to the cleaning unit 40, and the cleaning unit 40 reciprocates along the axial direction of the filter element 30 while rotating, so that the cleaning unit 40 can clean the entire circumference of the filter element 30. It should be understood that there are various ways to achieve the axial movement of the cleaning unit 40, for example, the cleaning unit 40 and the driving unit 41 can be driven to move axially at the same time by a linear driving element, or the cleaning unit 40 is movably connected to the driving unit 41 along the axial direction of the filter element 30, and then the cleaning unit 40 is driven to move axially by the linear driving element alone.

[0046] like Fig. 9 As shown, a conical pendulum motion can also be added to the cleaning unit 40. Specifically, a rotating bracket can be set on the inner wall of the filter element 30, and the rotating axis of the rotating bracket is colinear with the axis of the filter element 30. The cleaning unit 40 is rotatably set on the rotating bracket, and the rotating axis of the cleaning unit 40 is set at a certain angle to the axis of the filter element 30. The cleaning unit 40 can perform a conical pendulum motion along the axis of the filter element 30 while rotating, thereby increasing the scraping area of ​​the cleaning unit 40.

[0047] In addition to the above embodiments, other methods that can increase the scraping area of ​​the cleaning unit 40 can be used to set the structure or movement trajectory of the cleaning unit 40. For example, the cleaning unit 40 may include at least one blade, which extends along the longitudinal or circumferential direction of the filter element 30. The longitudinal direction here refers to the direction parallel to the axis of the filter element, and the circumferential direction refers to the direction perpendicular to the axis of the filter element.

[0048] It should be understood that the windward side of the annular filter material 31 is located on the outside, so most of the dust adheres to the outside of the filter material 31. Although this embodiment scrapes the inside of the filter material 31, the dust on the outside of the filter material 31 can still be fully shaken off through pulsating impact.

[0049] In some other alternative embodiments of the present invention, the filter element 30 may also be set in other shapes, for example, the filter element 30 may be set in a flat shape, and accordingly, the movement mode of the cleaning unit 40 also needs to be adaptively adjusted according to the shape of the filter element 30. It should be noted that the flat shape mentioned in this embodiment means that the filter element is flat as a whole, not just the filter material 31 is flat, in other words, the filter material 31 can still be provided with wavy folds.

[0050] like Figure 6 As shown, when the filter element 30 is flat, the cleaning unit 40 can be arranged to rotate in a direction perpendicular to the filter element 30, and a folded edge protruding in the direction of the filter element 30 is provided on the cleaning unit 40, and the folded edge forms an interference fit with the pleats of the filter element 30. When the cleaning unit 40 rotates, the end of the folded edge can scrape the surface of the filter element 30 and impact the top of the pleats.

[0051] like Figure 7 As shown, when the filter element 30 is flat, the cleaning unit 40 can also be arranged to rotate in a direction parallel to the filter element 30, and the rotation axis of the cleaning unit 40 is parallel to or at an angle to the ridgeline of the pleats. In this way, the cleaning unit 40 can also impact the filter element 30 during rotation. However, in this embodiment, the contact area between the cleaning unit 40 and the filter element 30 is small. Therefore, when using this embodiment, the number of cleaning units 40 can be appropriately increased.

[0052] In addition to the above embodiments, when the filter element 30 is in a flat plate shape, a linear drive element may be directly used to drive the cleaning unit 40 to perform reciprocating linear motion along the surface of the filter element 30 .

[0053] In an optional embodiment of the present invention, at least the portion of the blade that contacts the filter material 31 is made of an elastic material. It should be understood that in order to prevent the cleaning unit 40 from scratching the filter material 31, the material of the cleaning unit 40 cannot be too hard, and at the same time, in order to ensure that the cleaning unit 40 can effectively impact the filter material 31, the material of the cleaning unit 40 cannot be too soft. Taking the above factors into consideration, the portion of the cleaning unit 40 that contacts the filter material 31 can be made of an elastic material with a certain rigidity.

[0054] In a specific embodiment, at least the portion of the cleaning unit 40 that contacts the filter material 31 may be made of, for example, TPU (thermoplastic polyurethane elastomer), TPE (thermoplastic elastomer), PVC (polyvinyl chloride), rubber or synthetic cloth.

[0055] It should be understood that the above-mentioned limitation on the material of the cleaning unit 40 is mainly to adapt to the cooperation between it and the filter material 31. Therefore, the cleaning unit 40 can only set the part in contact with the filter material 31 to the above-mentioned elastic material. For example, the main body of the cleaning unit 40 is set to a rigid material such as plastic, metal, etc., and the part of the cleaning unit 40 in contact with the filter material 31 is set to the above-mentioned elastic material. The connection between the elastic material and the rigid material can be achieved through a connector, or through processes such as viscose and two-color injection molding.

[0056] See also Figure 1 , 2As shown, in an optional embodiment of the present invention, the dust cup 20 is connected to the host 10 in a detachable manner, and the dust cup 20 is provided with an air inlet 21 and an air outlet 22, and the air outlet 22 is communicated with the air inlet 111 of the fan assembly 11, and the filter element 30 is installed in the dust cup 20, and the filter element 30 is located between the air inlet 21 and the air outlet 22. Specifically, a quick-release buckle can be provided between the dust cup 20 and the host 10, for example, to achieve quick connection and disassembly between the dust cup 20 and the host 10. The specific structure of the quick-release buckle can refer to the connection scheme between the dust cup 20 and the host 10 in the prior art, and will not be repeated here.

[0057] In a specific embodiment, there are multiple options for assembling the main unit 10, the filter element 30, and the dust cup 20. For example, in one embodiment, the filter element 30 can be first installed in the dust cup 20, and then the dust cup 20 can be installed on the main unit 10; for example, in another embodiment, the filter element 30 can be first installed on the main unit 10, and then the dust cup 20 can be put on the filter element 30, and the dust cup 20 can be connected to the main unit 10.

[0058] See also Figure 1 , 2 As shown in Figures 3 and 4, in an optional embodiment of the utility model, a cleaning bracket 42 is further included, the cleaning bracket 42 is connected to the host 10, the cleaning bracket 42 protrudes into the dust cup 20, and the cleaning unit 40 and the driving unit 41 are installed on the cleaning bracket 42. In this embodiment, the cleaning unit 40 and the driving unit 41 are connected to the host 10 as a whole through the cleaning bracket 42, and the driving unit 41 can directly draw power from the power module of the host 10, simplifying the circuit structure.

[0059] See also Figure 3As shown, in an optional embodiment of the utility model, the cleaning bracket 42 is installed at the air suction port 111 of the fan assembly 11, the filter element 30 is a cylindrical structure, the filter element 30 is installed at the air outlet 22, and the cleaning bracket 42 is inserted into the center hole of the filter element 30; the cleaning bracket 42 is provided with a hollow portion 421 for connecting the air suction port 111 and the center hole of the filter element 30. In this embodiment, since the cleaning unit 40 and the driving unit 41 are arranged at the air intake port 111 of the fan assembly 11 through the cleaning bracket 42, when the dust cup 20 is connected to the main unit 10, the cleaning unit 40 can naturally protrude into the dust cup 20 and contact the filter element 30. When the dust cup 20 is separated from the main unit 10, the cleaning unit 40 can be separated from the dust cup 20 by itself. When it is necessary to dump garbage, the user only needs to disassemble and assemble the dust bucket like using a traditional vacuum cleaner. This layout will not destroy the user's inherent usage habits, nor will it incur any additional learning costs. While realizing the self-cleaning function of the filter element 30, it ensures the user's usage experience.

[0060] In an optional embodiment of the present invention, a controller and a control signal input element are further included, the drive unit 41 and the control signal input element are electrically connected to the controller, and the controller is configured to control the working state of the drive unit 41 according to the signal input by the control signal input element. In a specific embodiment, the control signal input element can be, for example, a switch provided on the host 10, and the user can turn on or off the cleaning function of the filter element 30 by triggering the switch.

[0061] In a further embodiment, in order to better clean the filter element 30, the cleaning unit 40 can be limited to start only when the fan assembly 11 is stopped. This function can be implemented by a computer program pre-stored in the controller or by a logic circuit. Of course, this function is not necessary and can be removed in some other embodiments.

[0062] In some other extended embodiments, the vacuum cleaner may further include a wireless communication module, and the controller may be connected to the mobile terminal for communication via the wireless communication module, and the user may issue a self-cleaning instruction to the vacuum cleaner via the mobile terminal.

[0063] In summary, the vacuum cleaner provided by the utility model is provided with a cleaning unit 40 near the surface of the filter element 30. The cleaning unit 40 can impact the filter element 30, thereby inducing the vibration of the filter element 30, so as to shake off the dust attached to the surface of the filter element 30, ensure the smooth flow channel of the vacuum cleaner, and improve the working efficiency of the vacuum cleaner. The cleaning unit 40 is driven by a driving unit 41, and the driving unit 41 is an electrically driven power source. The user can complete the self-cleaning operation of the filter element 30 by controlling the start and stop of the driving unit 41. The cleaning operation of the filter element 30 by the cleaning unit 40 is completed without disassembling the machine, which can avoid pollution to the external environment and greatly improve the user's experience. The cleaning unit 40 is made of elastic material and can effectively impact the filter element 30 while avoiding scratching the filter element 30. The cleaning unit 40 and the driving unit 41 are connected to the host 10 through the cleaning bracket 42. The driving unit 41 can directly draw power from the power module of the host 10, simplifying the circuit structure. When the dust cup 20 is connected to the host 10, the cleaning unit 40 can naturally protrude into the dust cup 20 and contact the filter element 30. When the dust cup 20 is separated from the host 10, the cleaning unit 40 can naturally separate from the dust cup 20 by itself. When it is necessary to dump garbage, the user only needs to disassemble and assemble the dust bucket like using a traditional vacuum cleaner. This layout will not disrupt the user's inherent usage habits, nor will it incur any learning costs. While realizing the self-cleaning function of the filter element 30, it ensures the user's usage experience.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

[0065] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of the embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more specific details or by other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the present invention.

Claims

1. A vacuum cleaner, characterized in that: include: A dust cup having an air inlet thereon, and the vacuum cleaner having an air outlet thereon; A filter element is placed in the dust cup, the filter element is arranged in a ring shape, dust gas enters the dust cup through the air inlet, flows through the filter element, and is discharged from the air outlet; A cleaning unit is placed in the filter element, and the cleaning unit moves circumferentially along the inner surface of the filter element and scrapes against the filter element; The driving unit is used to drive the cleaning unit to move.

2. The vacuum cleaner according to claim 1, characterized in that: The cleaning unit includes at least one blade extending in a longitudinal direction or a circumferential direction of the filter element.

3. The vacuum cleaner according to claim 1, characterized in that: The filter element comprises a filter material, the surface of which has wavy folds. The cleaning unit is configured to scrape the surface of the filter material and impact the raised parts of the wavy folds when the inner surface of the filter element moves circumferentially.

4. The vacuum cleaner according to claim 3, characterized in that: The cleaning unit is rotatably arranged relative to the filter element, and an end of the cleaning unit forms an interference fit with a raised portion of the wavy folds.

5. The vacuum cleaner according to claim 2, characterized in that: At least the portion of the blade that contacts the filter element is made of elastic material.

6. The vacuum cleaner according to claim 5, characterized in that: At least the portion of the cleaning unit that contacts the filter element is made of TPU, TPE, PVC, rubber or synthetic cloth.

7. The vacuum cleaner according to claim 1, characterized in that: It also includes a host, the dust cup is detachably connected to the host, and the host includes a fan assembly.

8. The vacuum cleaner according to claim 7, characterized in that: It also includes a cleaning bracket, which is connected to the main unit and protrudes into the dust cup. The cleaning unit and the driving unit are installed on the cleaning bracket.

9. The vacuum cleaner according to claim 8, characterized in that: The cleaning bracket is installed at the air suction port of the fan assembly, the filter element is a cylindrical structure, and the cleaning bracket is inserted into the center hole of the filter element; the cleaning bracket is provided with a hollow portion for connecting the air suction port and the center hole of the filter element.

10. The vacuum cleaner according to claim 1, characterized in that: It also includes a controller and a control signal input element. The drive unit and the control signal input element are electrically connected to the controller. The controller is configured to control the working state of the drive unit according to the signal input by the control signal input element.

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