Cleaning system

Abstract

The utility model discloses a cleaning system. The cleaning system comprises a handheld dust collector and a base station. The handheld vacuum cleaner is used for cleaning a surface to be cleaned. The handheld vacuum cleaner includes a suction motor for generating a suction airflow and a dust collection assembly for collecting dirt. The dust collection assembly comprises a dust cup and an annular filter screen arranged in the dust cup. The handheld dust collector further comprises a dust scraping mechanism used for scraping at least part of dirt of the annular filter screen and a driving device used for driving the dust scraping mechanism. The base station is used for butt joint with the handheld dust collector. The handheld vacuum cleaner also includes an airflow converter including a converter housing defining a first inlet, a second inlet, and an air outlet, and a converter mechanism. The converter mechanism is configured to open one of the first inlet and the second inlet when the other is closed. The first inlet is in fluid communication with the interior of the dust cup, and the second inlet is in fluid communication with a dust storage space of the base station; the air outlet is in fluid communication with the suction port of the suction motor.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a cleaning system. Background Art

[0002] The cleaning system includes a handheld vacuum cleaner and a base station for docking the handheld vacuum cleaner. The base station is generally provided with a dust bag or a dust collecting device for collecting the dirt transferred from the dust cup on the handheld vacuum cleaner. In this way, each time the user uses the handheld vacuum cleaner, he only needs to dock the handheld vacuum cleaner with the base station, start the self-cleaning function, and transfer the dirt in the dust cup to the base station. When the user uses the handheld vacuum cleaner next time, he only needs to take off the handheld vacuum cleaner.

[0003] However, although the annular filter can improve the separation efficiency, when cleaning longer hair, some hair will often be entangled on the annular filter, which is difficult to clean. Over time, the cleaning efficiency may be affected. Utility Model Content

[0004] In view of the deficiencies existing in the above-mentioned technologies, the utility model provides a cleaning system, which can remove the dirt entangled on the annular filter net while collecting dust, without the need for manual cleaning by the user.

[0005] On the one hand, the utility model provides a cleaning system, comprising

[0006] A handheld vacuum cleaner for cleaning a surface to be cleaned; the handheld vacuum cleaner comprises a suction motor for generating a suction airflow and a dust collecting assembly for collecting dirt; the dust collecting assembly comprises a dust cup and an annular filter screen arranged in the dust cup; the handheld vacuum cleaner further comprises a scraping mechanism for scraping off at least part of the dirt on the annular filter screen and a driving device for driving the scraping mechanism;

[0007] A base station, used for docking the handheld vacuum cleaner, the base station comprising a dust storage space, the dust storage space comprising a space for accommodating dirt transferred from the dust cup;

[0008] The handheld vacuum cleaner also includes an airflow converter, which includes a converter housing and a converter mechanism, wherein the converter housing defines a first inlet, a second inlet and an air outlet; the converter mechanism is configured to open the other of the first inlet and the second inlet when one of the two is closed; the first inlet is connected to the internal fluid of the dust cup, and the second inlet is connected to the dust storage space fluid of the base station; the air outlet is connected to the suction port fluid of the suction motor.

[0009] Optionally, the handheld vacuum cleaner also includes a connecting channel for connecting the second inlet and the dust storage space of the base station. When the handheld vacuum cleaner is placed horizontally, the connecting channel is located below the converter housing, and the driving device is located above the airflow converter.

[0010] Optionally, when the handheld vacuum cleaner is placed horizontally, the airflow converter is located between the suction motor and the dust cup.

[0011] Optionally, a battery pack is further included, and when the handheld vacuum cleaner is placed horizontally, the connecting channel is at least partially arranged in front of the battery pack.

[0012] Optionally, the driving device includes a motor and a transmission mechanism, and at least a portion of the transmission mechanism is arranged above the suction motor.

[0013] Optionally, the converter mechanism includes a drive rod, a connecting rod transmission-connected to the drive rod, and a closing plate connected to the connecting rod, the drive rod and the connecting rod are located outside the converter housing, and the closing plate is located inside the converter housing.

[0014] Optionally, the driving rod is configured to drive the closing plate to open one of the first inlet and the second inlet through the connecting rod under the action of an external force, while closing the other one.

[0015] Optionally, the driving device includes a motor and a transmission mechanism. When the handheld vacuum cleaner is placed horizontally, the motor is arranged below or behind the suction motor, and the transmission mechanism is arranged below the suction motor.

[0016] Optionally, the handheld vacuum cleaner further includes a handle, and when the handheld vacuum cleaner is placed horizontally, the handle is arranged below the suction motor, and the driving device is arranged between the suction motor and the handle.

[0017] Optionally, the handheld vacuum cleaner also includes a connecting channel for connecting the second inlet and the dust storage space of the base station. When the handheld vacuum cleaner is placed horizontally, the connecting channel is located above the converter housing, and the driving device is located below the airflow converter.

[0018] On the other hand, the present application also discloses a cleaning system, comprising:

[0019] A handheld vacuum cleaner for cleaning a surface to be cleaned; the handheld vacuum cleaner comprises a suction motor for generating a suction airflow and a dust collecting assembly for collecting dirt; the dust collecting assembly comprises a dust cup and an annular filter screen arranged in the dust cup; the handheld vacuum cleaner further comprises a scraping mechanism for scraping off at least part of the dirt on the annular filter screen and a driving device for driving the scraping mechanism;

[0020] A base station, used for docking the handheld vacuum cleaner, the base station comprising a dust storage space, the dust storage space comprising a space for accommodating dirt transferred from the dust cup;

[0021] The cleaning system further includes a first air duct and a second air duct, wherein the first air duct is a part of the air duct through which the suction airflow passes when the handheld vacuum cleaner cleans the surface to be cleaned; the second air duct is a part of the air duct used to empty the dust cup after the handheld vacuum cleaner is docked to the base station; the cleaning system further includes an airflow converter, wherein the airflow converter is configured to close the first air duct and conduct the second air duct after the handheld vacuum cleaner is docked to the base station;

[0022] A controller for controlling a suction motor and a driving device; the controller is configured to, after receiving a self-cleaning instruction, control the suction motor to run for a preset time so as to transfer the dirt in the dust cup to the base station through the second air duct, and after the suction motor runs for a first preset time, control the driving device to drive the scraping mechanism to perform a scraping action.

[0023] The utility model provides a cleaning system, which includes a handheld vacuum cleaner and a base station. The handheld vacuum cleaner is used to clean a surface to be cleaned. The handheld vacuum cleaner includes a suction motor for generating a suction airflow and a dust collecting assembly for collecting dirt. The dust collecting assembly includes a dust cup and an annular filter screen arranged in the dust cup. The handheld vacuum cleaner also includes a scraping mechanism for scraping at least part of the dirt on the annular filter screen and a driving device for driving the scraping mechanism. The base station is used to dock the handheld vacuum cleaner, and the base station includes a dust storage space, and the dust storage space includes a device for accommodating dirt transferred from the dust cup. The handheld vacuum cleaner also includes an airflow converter, and the airflow converter includes a converter housing and a converter mechanism, and the converter housing defines a first inlet, a second inlet and an air outlet. The converter mechanism is configured to open the other one when one of the first inlet and the second inlet is closed. The first inlet is in fluid communication with the internal fluid of the dust cup, and the second inlet is in fluid communication with the dust storage space of the base station; the air outlet is in fluid communication with the suction port of the suction motor. By adopting the above structure, the air duct is switched by the air flow converter, the suction motor can be effectively used for emptying, and the scraping mechanism is used for scraping dust, which can effectively remove the dirt on the filter net while reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a structural schematic diagram of a cleaning system in one embodiment of the utility model;

[0025] Figure 2 is a cross-sectional schematic diagram of a cleaning system in one embodiment;

[0026] Figure 3 for Figure 2 A partial enlarged view of the area shown in middle A;

[0027] Figure 4 is a cross-sectional view of a handheld vacuum cleaner in one embodiment;

[0028] Figure 5 is a schematic structural diagram of a converter mechanism in one embodiment;

[0029] Figure 6 It is a schematic diagram of the structure of an airflow converter in an embodiment of the present invention, which is located in the first air duct;

[0030] Figure 7 A schematic diagram of the structure of an airflow converter in an embodiment of the present invention being located in the second air duct;

[0031] Figure 8 This is a schematic structural diagram of a scraping mechanism in one embodiment;

[0032] Fig. 9 This is a structural schematic diagram of an embodiment in which the scraping mechanism is located at an initial position;

[0033] Fig.10 This is a schematic diagram of the structure when the scraping mechanism is located at the end position in one embodiment;

[0034] Fig.11 is a structural cross-sectional view of a handheld vacuum cleaner in one embodiment when placed horizontally;

[0035] Fig.12 is a schematic structural diagram of a cleaning system in another embodiment;

[0036] Fig.13 It is a schematic diagram of the structure of a handheld vacuum cleaner when it is placed horizontally in one embodiment. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that if a directional indication is involved in the embodiments 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.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. 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 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 utility model.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0041] refer to Figure 1-11 , the figure discloses a cleaning system 100, wherein the cleaning system 100 includes a handheld vacuum cleaner 1 and a base station 2 for docking the handheld vacuum cleaner 1. The handheld vacuum cleaner 1 is used to clean the surface to be cleaned. The base station 2 is used to dock the handheld vacuum cleaner 1. The base station 2 includes a dust storage space 21, and the dust storage space 21 includes a dust storage space 21 for accommodating dirt transferred from a dust cup 121. The handheld vacuum cleaner 1 includes a suction motor 11 for generating a suction airflow and a dust collecting assembly 12 for collecting dirt. The dust collecting assembly 12 includes a dust cup 121 and an annular filter 122 disposed in the dust cup 121. The handheld vacuum cleaner 1 also includes a scraping mechanism 13 for scraping off at least part of the dirt on the annular filter 122 and a driving device 14 for driving the scraping mechanism 13. The driving device 14 is powered by a battery pack 17 of the handheld vacuum cleaner 1, and the driving device 14 can also be powered by a power supply connected to the base station 2. A controller 19 is also provided in the cleaning system 100 . The controller 19 can control the driving device 14 according to the signal to drive the scraping mechanism 13 .

[0042] The handheld vacuum cleaner 1 also includes an airflow converter 15, which includes a converter housing 151 and a converter mechanism 152. The converter housing 151 is defined by a first inlet 156, a second inlet 157 and an air outlet 158. The converter mechanism 152 is configured to open the other when one of the first inlet 156 and the second inlet 157 is closed. The first inlet 156 is in fluid communication with the internal fluid of the dust cup 121. The second inlet 157 is in fluid communication with the dust storage space 21 of the base station 2. The air outlet 158 ​​is in fluid communication with the suction port 145 of the suction motor 11. The airflow converter 15 can be controlled by an electric device by the controller 19 to switch the airway, for example, by a motor, a solenoid valve or other device. The airflow converter 15 can also be automatically controlled by a mechanical structure. The control of the airflow converter 15 can be manually controlled by a user, or automatically controlled by a program, which is not specified in detail here. With the airflow converter 15, when the handheld vacuum cleaner 1 is used alone, the first inlet 156 is in communication with the internal fluid of the dust cup 121 to form a first air duct 171 (refer to Figure 4 , the arrow direction in the figure is the airflow direction), the airflow generated by the suction motor 11 flows through the first air duct 171 to clean the surface to be cleaned. When the handheld vacuum cleaner 1 is docked to the base station 2, the second inlet 157 can be fluidly connected to the dust storage space 21 of the base station 2 to form a second air duct 172 (refer to Figure 3 , the direction of the arrow in the figure is the direction of air flow), at this time the first air duct 171 is cut off. At this time, the suction airflow generated by the suction motor 11 of the handheld vacuum cleaner 1 flows through the second air duct 172 to empty the dust cup 121 of the handheld vacuum cleaner 1, and transfers the dirt in the dust cup 121 to the dust bag or separation device of the base station 2. When the handheld vacuum cleaner 1 is docked to the base station 2, the airflow converter 15 can automatically switch the air duct, or it can switch the air duct after receiving the self-cleaning instruction. In the process of emptying the dust cup 121, the dust scraping process is performed simultaneously, which can effectively clean the annular filter 122 and improve the separation efficiency.

[0043] refer to Figure 4 The driving device 14 includes a motor 141 and a transmission mechanism 142, and at least part of the transmission mechanism 142 is disposed above the suction motor 11. In one embodiment, the transmission mechanism 142 includes a screw 143 and a push rod 144 that cooperates with the screw 143. In other embodiments, the transmission mechanism 142 may adopt one or more transmission mechanisms such as gear transmission, belt transmission, or worm gear, which will not be described in detail here.

[0044] refer to Figure 8-10The scraping mechanism 13 includes an annular bracket 131 and a scraping strip 132 disposed on the annular bracket 131. The transmission mechanism 142 can directly push the annular bracket 131 to move along the axial direction of the annular filter screen 122 to scrape off the dirt on the filter screen. Further, the scraping mechanism 13 can also include an extension rod 133 and a guide portion 134 connected to the annular bracket 131. The dust cup 121 is also provided with a guide rod 135. The guide portion 134 is used to move along the guide rod 135 to guide the movement of the annular bracket 131. The transmission mechanism 142 acts on the extension rod 133, and drives the annular bracket 131 to move axially through the extension rod 133.

[0045] refer to Figure 5-7 The converter mechanism 152 includes a driving rod 153, a connecting rod 154 transmission-connected to the driving rod 153, and a closing plate 155 connected to the connecting rod 154. The driving rod 153 and the connecting rod 154 are located outside the converter housing 151, and the closing plate 155 is located inside the converter housing 151.

[0046] The driving rod 153 is configured to drive the closing plate 155 to open one of the first inlet 156 and the second inlet 157 through the connecting rod 154 under the action of external force, and close the other. The middle position of the driving rod 153 is pivotally installed in the vacuum cleaner body, one end of the driving rod 153 is pushed, and the other end rotates to drive the connecting rod 154 to rotate, and the connecting rod 154 drives the closing plate 155 to move.

[0047] refer to Fig.11 , the position of the handheld vacuum cleaner 1 shown in the figure is a horizontal position. The above, below, front or rear in this embodiment does not specifically refer to directly above, directly below, directly in front of, directly behind, etc. of a structure, but mainly refers to the positional relationship in the height direction or the horizontal direction. The handheld vacuum cleaner 1 also includes a connecting channel 16 for connecting the second inlet 157 and the dust storage space 21 of the base station 2. When the handheld vacuum cleaner 1 is placed horizontally, the connecting channel 16 is located below the converter housing 151, and the drive device 14 is located above the airflow converter 15. This arrangement can effectively disperse the weight of each component and make the volume more convenient to arrange.

[0048] Continue to refer Fig.11 When the handheld vacuum cleaner 1 is placed horizontally, the airflow converter 15 is located between the suction motor 11 and the dust cup 121. This arrangement also simplifies the air duct and reduces energy loss in the air duct. The handheld vacuum cleaner 1 also includes a battery pack 17. When the handheld vacuum cleaner 1 is placed horizontally, the connecting channel 16 is at least partially arranged in front of the battery pack 17. In this way, after the connecting channel 16 is docked to the base station 2, it can be directly connected to the fluid of the base station 2. The handheld vacuum cleaner 1 also includes a handle 173. When the handheld vacuum cleaner 1 is placed horizontally, the handle 173 is arranged behind the suction motor 11.

[0049] refer to Fig.12 and 13 In another embodiment, the handheld vacuum cleaner 1 adopts another different structural arrangement. The top or bottom in this embodiment does not specifically refer to the top or bottom of a structure, but can also be the lower left, upper left, lower right and upper right, etc., mainly referring to the up and down position relationship in the height direction.

[0050] The driving device 14 includes a motor 141 and a transmission mechanism 142. When the handheld vacuum cleaner 1 is placed horizontally, the motor 141 is arranged below or behind the suction motor 11, and the transmission mechanism 142 is arranged below the suction motor 11. The transmission mechanism 142 can adopt the structure described in the above embodiment, which is not described in detail here. The handheld vacuum cleaner 1 also includes a handle 173. When the handheld vacuum cleaner 1 is placed horizontally, the handle 173 is arranged below the suction motor 11, and the driving device 14 is arranged between the suction motor 11 and the handle 173. The handheld vacuum cleaner 1 also includes a connecting channel 16 for connecting the second inlet 157 and the dust storage space 21 of the base station 2. When the handheld vacuum cleaner 1 is placed horizontally, the connecting channel 16 is located above the converter housing 151, and the driving device 14 is located below the airflow converter 15.

[0051] The present application also discloses a method for controlling the cleaning system 100 (see Figure 1-10 ), and the control method is implemented by the controller 19. The cleaning system 100 includes a handheld vacuum cleaner 1 and a base station 2, and the handheld vacuum cleaner 1 is used to clean the surface to be cleaned. The handheld vacuum cleaner 1 includes a suction motor 11 for generating a suction airflow and a dust collecting assembly 12 for collecting dirt; the dust collecting assembly 12 includes a dust cup 121 and an annular filter 122 arranged in the dust cup 121; the handheld vacuum cleaner 1 also includes a scraping mechanism 13 for scraping at least part of the dirt on the annular filter 122 and a driving device 14 for driving the scraping mechanism 13. The base station 2 is used to dock the handheld vacuum cleaner 1, and the base station 2 includes a dust storage space 21, and the dust storage space 21 includes a dust storage space for accommodating dirt transferred from the dust cup 121.

[0052] The cleaning system 100 further includes a first air duct 171 and a second air duct 172. The first air duct 171 is a part of the air duct through which the suction airflow passes when the handheld vacuum cleaner 1 cleans the surface to be cleaned. The second air duct 172 is a part of the air duct used to empty the dust cup 121 after the handheld vacuum cleaner 1 is docked to the base station 2. The cleaning system 100 further includes an airflow converter 15. The airflow converter 15 is configured to close the first air duct 171 and conduct the second air duct 172 after the handheld vacuum cleaner 1 is docked to the base station 2.

[0053] The controller 19 is used to control the suction motor 11 and the driving device 14. The controller 19 is configured to control the suction motor 11 to run for a preset time after receiving the self-cleaning instruction, so as to transfer the dirt in the dust cup 121 to the base station 2 through the second air duct 172, and after the suction motor 11 runs for a first preset time, control the driving device 14 to drive the scraping mechanism 13 to perform the scraping action.

[0054] Before scraping the dust, the dirt in the dust cup 121 is emptied first to prevent the scraping device from getting stuck due to too much dirt in the dust cup 121.

[0055] Furthermore, the bottom cover of the dust cup 121 is provided with a rebound mechanism. When the suction airflow stops, the bottom cover slowly moves from the open state to the closed state under the action of the rebound mechanism. Since it takes a certain amount of time for the bottom cover of the dust cup 121 to close automatically, in order to prevent the user from removing the handheld vacuum cleaner 1 after the suction motor 11 finishes working, causing the bottom cover of the dust cup 121 to be unable to be closed, affecting normal use, the controller 19 is configured to control the end time of the suction motor 11 to be earlier than the end time of the scraping mechanism 13. When the scraping mechanism 13 finishes working, the bottom cover of the dust cup 121 has returned to the position to be closed. When the dust cup 121 leaves the base station 2, the bottom cover at this time can be closed normally.

[0056] In order not to affect normal use, the controller 19 is configured to control the scraping mechanism 13 to return to the scraping end position after the handheld vacuum cleaner 1 leaves the base station 2 during the self-cleaning process. In this way, even if the handheld vacuum cleaner 1 is accidentally removed during the self-cleaning process, the scraping mechanism 13 will automatically reset to avoid affecting the next self-cleaning or normal use.

[0057] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. 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 utility model is not limited to the specific details and the illustrations shown and described here.

Claims

1. A cleaning system, characterized in that: include: A handheld vacuum cleaner for cleaning a surface to be cleaned; the handheld vacuum cleaner comprises a suction motor for generating a suction airflow and a dust collecting assembly for collecting dirt; the dust collecting assembly comprises a dust cup and an annular filter screen arranged in the dust cup; the handheld vacuum cleaner further comprises a scraping mechanism for scraping off at least part of the dirt on the annular filter screen and a driving device for driving the scraping mechanism; A base station, used for docking the handheld vacuum cleaner, the base station comprising a dust storage space, the dust storage space comprising a space for accommodating dirt transferred from the dust cup; The handheld vacuum cleaner also includes an airflow converter, which includes a converter housing and a converter mechanism, wherein the converter housing defines a first inlet, a second inlet and an air outlet; the converter mechanism is configured to open the other of the first inlet and the second inlet when one of the two is closed; the first inlet is connected to the internal fluid of the dust cup, and the second inlet is connected to the dust storage space fluid of the base station; the air outlet is connected to the suction port fluid of the suction motor.

2. The cleaning system according to claim 1, characterized in that The handheld vacuum cleaner also includes a connecting channel for connecting the second inlet and the dust storage space of the base station. When the handheld vacuum cleaner is placed horizontally, the connecting channel is located below the converter housing, and the driving device is located above the airflow converter.

3. The cleaning system according to claim 1, characterized in that When the handheld vacuum cleaner is placed horizontally, the airflow converter is located between the suction motor and the dust cup.

4. The cleaning system according to claim 2, characterized in that A battery pack is also included. When the handheld vacuum cleaner is placed horizontally, the connecting channel is at least partially arranged in front of the battery pack.

5. The cleaning system according to claim 1, characterized in that The driving device comprises a motor and a transmission mechanism, and at least a part of the transmission mechanism is arranged above the suction motor.

6. The cleaning system according to claim 1, characterized in that The converter mechanism comprises a driving rod, a connecting rod transmission-connected to the driving rod and a closing plate connected to the connecting rod. The driving rod and the connecting rod are located outside the converter housing, and the closing plate is located inside the converter housing.

7. The cleaning system according to claim 6, characterized in that The driving rod is configured to drive the closing plate through the connecting rod under the action of an external force to open one of the first inlet and the second inlet and close the other one at the same time.

8. The cleaning system according to claim 1, characterized in that The driving device comprises a motor and a transmission mechanism. When the handheld vacuum cleaner is placed horizontally, the motor is arranged below or behind the suction motor, and the transmission mechanism is arranged below the suction motor.

9. The cleaning system according to claim 1, characterized in that The handheld vacuum cleaner further comprises a handle. When the handheld vacuum cleaner is placed horizontally, the handle is arranged below the suction motor, and the driving device is arranged between the suction motor and the handle.

10. The cleaning system according to claim 1, characterized in that The handheld vacuum cleaner also includes a connecting channel for connecting the second inlet and the dust storage space of the base station. When the handheld vacuum cleaner is placed horizontally, the connecting channel is located above the converter housing, and the driving device is located below the airflow converter.

11. A cleaning system, characterized in that: include: A handheld vacuum cleaner for cleaning a surface to be cleaned; the handheld vacuum cleaner comprises a suction motor for generating a suction airflow and a dust collecting assembly for collecting dirt; the dust collecting assembly comprises a dust cup and an annular filter screen arranged in the dust cup; the handheld vacuum cleaner further comprises a scraping mechanism for scraping off at least part of the dirt on the annular filter screen and a driving device for driving the scraping mechanism; A base station, used for docking the handheld vacuum cleaner, the base station comprising a dust storage space, the dust storage space comprising a space for accommodating dirt transferred from the dust cup; The cleaning system further includes a first air duct and a second air duct, wherein the first air duct is a part of the air duct through which the suction airflow passes when the handheld vacuum cleaner cleans the surface to be cleaned; the second air duct is a part of the air duct used to empty the dust cup after the handheld vacuum cleaner is docked to the base station; the cleaning system further includes an airflow converter, wherein the airflow converter is configured to close the first air duct and conduct the second air duct after the handheld vacuum cleaner is docked to the base station; A controller for controlling a suction motor and a driving device; the controller is configured to, after receiving a self-cleaning instruction, control the suction motor to run for a preset time so as to transfer the dirt in the dust cup to the base station through the second air duct, and after the suction motor runs for a first preset time, control the driving device to drive the scraping mechanism to perform a scraping action.

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