Dust collection devices, cleaning equipment and control methods

Abstract

This disclosure provides a dust collection device, cleaning equipment, and control method, belonging to the field of cleaning equipment. The dust collection device includes a dust cup, a cleaning assembly, and a drive assembly. The cleaning assembly can move between an initial position away from the bottom of the dust cup and a cleaning position near the bottom of the dust cup. Before or when the dust cup enters the cleaning state, the drive assembly drives the cleaning assembly to the cleaning position and holds it there. After the dust cup returns to the dust collection state, the drive assembly drives the cleaning assembly back to the initial position. The dust collection device, cleaning equipment, and control method provided by this disclosure can reduce the disturbance of the bottom dust caused by the reverse movement of the cleaning assembly, reducing the possibility of dust re-loosening, being stirred up, or escaping from the dust discharge area.

Description

Technical Field

[0001] This disclosure belongs to the field of cleaning equipment technology, specifically relating to a dust collection device, cleaning equipment, and control method. Background Technology

[0002] Cleaning equipment typically includes a dust collection device for separating and collecting dust. This device consists of a dust cup and a filter structure within the cup. When dust-laden airflow enters the dust cup, dust, hair, lint, and particulate matter are intercepted and stored within the filter structure. After a period of use, dust easily accumulates on the surface of the filter structure, and lint and particulate matter in the dust cup tend to form a loose buildup. Some dust collection devices incorporate scraping or pressing components within the dust cup. The scraping component moves to remove deposits from the filter structure surface, while the pressing component moves towards the bottom of the dust cup to compress the dust. Summary of the Invention

[0003] Existing dust removal mechanisms typically return to their initial position immediately after scraping or pressing dust, resulting in a lack of coordination between the mechanism's return and the dust cup cleaning process. When a significant amount of dust accumulates in the dust cup, the pressing component has already pushed the dust towards the bottom. If this component moves away from the bottom of the dust cup when the cover is open, the dust cup is removed, or the dust has not been completely discharged, the compacted dust is easily agitated by the reverse movement of the pressing component, causing it to loosen again. Some fine dust particles may also be stirred up by the airflow disturbance caused by the return of the dust removal mechanism and escape through the open dust outlet, increasing secondary pollution during dust cup cleaning.

[0004] When the cleaning structure returns to its initial position from the bottom of the dust cup, it needs to pass through the area where residual dust remains inside the dust cup. Dust, hair, or lint may enter the gaps between the cleaning structure and the inner wall of the dust cup, the filter structure, or the transmission structure, causing increased movement resistance, component jamming, or dust residue. Returning to its original position before the dust cup is fully cleaned will also cause the cleaning structure to obstruct the dust discharge path, affecting the smooth discharge of residual dust. Existing dust collection devices still need improvement in the driving timing of the cleaning structure so that its movement, dwell, and return actions match the process of the dust cup entering the cleaning state, completing dust discharge, and resuming the dust collection state.

[0005] In view of the aforementioned technical problems, the purpose of this disclosure is to provide a dust collection device, cleaning equipment and control method, which can reduce the disturbance of bottom dust caused by the premature return of the dust cleaning component, and reduce the possibility of dust being re-raised, escaping from the dust cup or entering the moving fit gap.

[0006] To achieve the above objectives, the technical solution provided in this disclosure is as follows:

[0007] In a first aspect, this disclosure provides a dust collection device, comprising a dust cup, a dust removal assembly, and a drive assembly; the dust cup has a dust collection state for collecting dust and a cleaning state for discharging dust; the dust removal assembly is movably disposed within the dust cup, the dust removal assembly comprising at least one of a dust scraper and a dust pressing component, the dust removal assembly having an initial position away from the bottom of the dust cup and a cleaning position near the bottom of the dust cup; the drive assembly is used to drive the dust removal assembly; wherein, the drive assembly is used to drive the dust removal assembly from the initial position to the cleaning position before or when the dust cup enters the cleaning state, and to maintain the dust removal assembly in the cleaning position or a preset holding range of the cleaning position during the dust cup being in the cleaning state, and to drive the dust removal assembly back from the cleaning position to the initial position after detecting that the dust cup has returned to the dust collection state. By moving the dust removal component to a cleaning position near the bottom of the dust cup before or during the cleaning process, and maintaining it in the cleaning position during the dust cup cleaning, and then returning it to its initial position after the dust cup has finished cleaning and returned to the dust collection state, the movement sequence of the dust removal component is matched with the dust discharge process.

[0008] In one or more embodiments, the dust cup contains a filter assembly, and the dust cleaning assembly includes a dust scraper and a dust pressing component. The dust scraper can move along the filter assembly to scrape off dust adhering to the filter assembly, and the dust pressing component can move towards the bottom of the dust cup to compress the dust inside the dust cup. By setting up the dust scraper and dust pressing component, the dust scraper removes the adhering substances from the surface of the filter assembly, and the dust pressing component presses the scraped-off substances and the original dust inside the dust cup towards the bottom of the dust cup. This simultaneously cleans the filter assembly and compresses the dust inside the dust cup, reducing filter pore blockage and minimizing the space occupied by loose dust.

[0009] In one or more embodiments, the drive assembly drives the scraper to perform a scraping action first, and then drives the pressing component to move towards the bottom of the dust cup to perform a pressing action. After the pressing component reaches the cleaning position, it is held in the bottom area of ​​the dust cup. By having the drive assembly first drive the scraper to perform the scraping action and then drive the pressing component to perform the pressing action, the dust on the filter assembly first detaches and enters the dust collection area, where it is then compressed together with the dust in the dust cup. The pressing component is held in the bottom area after reaching the cleaning position, which reduces the likelihood of compacted dust re-loosening or being stirred up during dust discharge.

[0010] In one or more embodiments, the filter assembly includes a filter screen and a cylindrical portion disposed adjacent to each other along the axial direction of the dust cup. The scraper is movable from the outer periphery of the filter screen to the outer periphery of the cylindrical portion. At least a portion of the pressing member is located on the axial movement path of the scraper on the outer periphery of the cylindrical portion, such that after the scraper moves to the outer periphery of the cylindrical portion, it forms an interference relationship with the pressing member along the axial direction of the dust cup. By allowing the scraper to continue moving from the outer periphery of the filter screen to the outer periphery of the cylindrical portion, and by positioning the pressing member partially on the axial movement path of the scraper, the scraper can push the pressing member to move after scraping is completed.

[0011] In one or more embodiments, the drive assembly includes a drive member and a transmission member. The drive member includes a drive motor, and the transmission member includes a transmission shaft, which is drively connected to the dust removal assembly and the output shaft of the drive motor. Power is transmitted to the dust removal assembly via the drive motor and transmission shaft, allowing control of the dust removal assembly's direction of movement, travel distance, and stop position, and providing a driving basis for maintaining the cleaning position.

[0012] In one or more embodiments, when the dust cup is not in the docked state with the main unit of the cleaning equipment, the dust removal assembly is in the cleaning position, and the drive shaft does not protrude from the outer contour of the dust cup. Maintaining the cleaning position when the dust cup is not docked with the main unit, and ensuring the drive shaft does not protrude from the outer contour of the dust cup, reduces the risk of the drive shaft being impacted during dust cup disassembly, cleaning, placement, and reinstallation, and avoids protruding structures obstructing user operation.

[0013] In one or more embodiments, the drive motor maintains the rotation angle of the output shaft during the dust cup being in the cleaning state to restrict the dust removal assembly from leaving the cleaning position via the drive shaft. Maintaining the rotation angle of the output shaft during dust cup cleaning, and restricting the dust removal assembly from leaving the cleaning position via the drive shaft, reduces the need for independent locking mechanisms.

[0014] In one or more embodiments, the dust cup includes a cup body and a cover. The cup body forms a dust collection space and a dust discharge port communicating with the dust collection space. The cover is closable and disposed at the dust discharge port. The cleaning state of the dust cup includes a state where the cover is open and the dust discharge port is open. The driving component is used to hold the cleaning component in the cleaning position during the opening of the cover and drive the cleaning component back to the initial position after the cover is closed. By corresponding the movement and return sequence of the cleaning component to the opening and closing state of the cover, holding the cleaning component in the cleaning position during the opening of the cover and driving it back to the position after the cover is closed, it is possible to reduce dust raising and dust escape caused by the reverse movement of the cleaning component when the dust discharge port is open, and to ensure that the return action is completed after the dust cup is resealed.

[0015] In one or more embodiments, the dust cup is equipped with a cyclone separation mechanism, and the dust cup and the cyclone separation mechanism can be removed from the main unit of the cleaning equipment as a whole. The cleaning state of the dust cup includes the state in which the dust cup and the cyclone separation mechanism are removed from the main unit. The drive component is used to hold the dust cleaning component in the cleaning position when the dust cup and the cyclone separation mechanism are not reinstalled to the main unit. When the dust cup and the cyclone separation mechanism are removed from the main unit as a whole, the dust cleaning component remains in the cleaning position until they are reinstalled to the main unit, which can prevent the dust cleaning component from moving on its own during the user's dust emptying or cleaning.

[0016] In one or more embodiments, the dust cup enters the cleaning state before a cleaning preparation event is detected. The cleaning preparation event includes at least one of the following: the cleaning device receives a dust removal command, the dust cup cover switches from a locked state to an unlocked state, a dust cup disassembly switch for triggering dust cup disassembly is triggered, and a negative pressure source located on the main unit of the cleaning device stops operating. The drive component is used to drive the dust removal component to move from the initial position to the cleaning position after the cleaning preparation event is detected.

[0017] Secondly, this disclosure provides a cleaning device, which includes a main unit, a negative pressure source, and the aforementioned dust collection device, wherein the dust collection device is detachably installed on the main unit, and the negative pressure source is used to drive a dust-laden airflow into the dust collection device.

[0018] Thirdly, this disclosure provides a control method for a dust collection device. The dust collection device includes a dust cup, a cleaning component movably disposed within the dust cup, and a drive component for moving the cleaning component. The cleaning component includes at least one of a scraper and a pressing component. The control method includes: before or when the dust cup enters a dust discharge state, driving the cleaning component from an initial position away from the bottom of the dust cup to a cleaning position near the bottom of the dust cup or within a preset holding range of the cleaning position via the drive component; during the cleaning state, holding the cleaning component at the cleaning position via the drive component; and after the dust cup returns to the dust collection state, driving the cleaning component back from the cleaning position to the initial position via the drive component. By moving the cleaning component to the cleaning position before or when the dust cup enters the cleaning state, maintaining its position during cleaning, and returning it to its original position after the dust cup returns to the dust collection state, the movement, holding, and returning of the cleaning component are performed sequentially according to the dust cup state, reducing dust disturbance caused by premature return of the cleaning component.

[0019] In one or more embodiments, the dust removal assembly includes a scraper and a pressing component. Driving the dust removal assembly to move to the cleaning position or a preset holding range of the cleaning position includes: driving the scraper to move along the filter assembly of the dust collection device to scrape off dust adhering to the filter assembly; after the scraper completes scraping, driving the pressing component towards the bottom of the dust cup to compress the dust in the dust cup; and holding the pressing component in the bottom area of ​​the dust cup after it has moved to that area. By sequentially performing scraping, pressing, and bottom holding, the adhering material on the filter assembly is first scraped off, then compressed together with the dust in the dust cup, and the pressing component is held in position during dust discharge.

[0020] In one or more embodiments, the dust cup includes a cover that is openable and closable at the dust discharge port of the dust cup. The control method includes: moving the cleaning component to the cleaning position before or when the cover is opened; maintaining the cleaning component at the cleaning position or within a preset range of the cleaning position during the opening of the cover; and driving the cleaning component back to the initial position after the cover is closed again. By controlling the position of the cleaning component according to the opening and closing state of the cover, so that the cleaning component reaches the cleaning position before or when the cover is opened, remains there during the opening of the cover, and returns to its original position after the cover is closed again, the cleaning action can be coordinated with the dust cup emptying action, reducing dust and dust leakage during the opening of the dust discharge port.

[0021] In one or more embodiments, the dust cup is detachably mounted to the main unit of the cleaning device, and the control method includes: moving the cleaning assembly to the cleaning position before or during the removal of the dust cup from the main unit; maintaining the cleaning assembly at the cleaning position or within a preset holding range of the cleaning position while the dust cup is removed from the main unit and not reinstalled to the main unit; and driving the cleaning assembly back to the initial position after detecting that the dust cup has been reinstalled to the main unit.

[0022] The dust collection device, cleaning equipment, and control method disclosed herein match the dust cup discharge process by moving the cleaning component from its initial position to a cleaning position near the bottom of the dust cup before or during the cleaning process, and maintaining it in that position throughout the cleaning process until the dust cup is cleaned and returns to its initial position. This control relationship prevents the cleaning component from returning to its original position prematurely before the dust is completely discharged or the dust cup is still open, reducing the disturbance of the bottom dust caused by the reverse movement of the cleaning component, and reducing the possibility of dust re-loosening, being stirred up, or escaping from the dust discharge area. The cleaning component does not need to repeatedly pass through the residual dust area, and it also reduces the entry of dust, hair, and lint into the mating gap between the cleaning component and the dust cup, filter component, or transmission component, reducing movement resistance and the risk of jamming. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments recorded in this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0024] Figure 1 This is a cross-sectional view of the dust collection device when the dust removal component is in the initial position according to an embodiment of this disclosure;

[0025] Figure 2 This is a cross-sectional view of the dust collection device when the dust removal component is in the cleaning position according to an embodiment of this disclosure;

[0026] Figure 3 This is a partial cross-sectional view of the dust collection device when the dust removal component is in the initial position according to an embodiment of the present disclosure.

[0027] Explanation of key figure labels:

[0028] 1-Dust cup, 11-Cup body, 12-Cover body, 13-Dust collection space, 14-Dust outlet, 2-Dust cleaning assembly, 21-Dust scraper, 211-Connecting ring, 212-Pushing part, 22-Dust pressing part, 221-Sleeve part, 222-Abutting part, 3-Drive assembly, 31-Driver, 311-Drive motor, 312-Output shaft, 32-Transmission part, 321-Transmission shaft, 4-Filter assembly, 41-Filter screen, 42-Cylinder, 5-Cyclone separation mechanism. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0030] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0031] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. In the embodiments shown in this disclosure, directions such as up, down, left, right, front, and back are relative and used to explain the relative positional and movement relationships between different components in this disclosure. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, then these representations are considered to change accordingly.

[0032] Existing dust collection devices typically treat the cleaning and return actions as a continuous reciprocating process. After completing scraping, pressing, or other cleaning actions, the cleaning structure often immediately returns to its normal dust collection position without adjusting the return timing based on whether dust has been discharged from the dust cup, whether the dust cup is still open, or whether the dust cup has been repositioned. When a large amount of dust accumulates in the dust cup, moving the cleaning structure towards the bottom of the dust cup can concentrate or compress the dust. However, if the cleaning structure then moves in the opposite direction, it can easily re-disturb the dust already concentrated at the bottom, causing the dust to become loose again or generating dust. When the cleaning structure moves in the opposite direction through the area where residual dust remains, dust, hair, and lint may also enter the gaps between the cleaning structure and surrounding components, increasing subsequent movement resistance and leaving some dust inside the dust collection device.

[0033] Based on the above analysis, the present disclosure establishes a corresponding relationship between the movement process of the dust cleaning component and the state change of the dust cup. When the dust cup is ready to discharge dust or starts to discharge dust, the dust cleaning component is first moved from the position during normal dust collection to a position close to the bottom of the dust cup. During this movement process, the dust cleaning component can complete surface cleaning of the filter, dust compression, or other dust cleaning actions. After the dust cleaning component reaches the position close to the bottom of the dust cup, it does not immediately move in the reverse direction, but continues to stay during the period when the dust cup remains in a state where dust can be discharged, so that the return movement of the dust cleaning component is separated from the dust discharge process in time. After the dust in the dust cup is completely discharged and the dust cup returns to a state where it can collect dust again, the dust cleaning component is then returned to the position during normal dust collection.

[0034] This implementation idea uses the state of the dust cup as the timing basis for the movement and return of the dust cleaning component, so that the dust cleaning component remains close to the dust discharge end during dust discharge. The dust cleaning component does not need to move reversely through the residual dust when the dust cup is open or the dust has not been completely discharged, which can reduce the re-disturbance of the bottom dust and reduce the possibility of dust entering the moving mating area. When the dust cleaning component completes its return, the dust cup has returned to a relatively closed or stably positioned state. Even if a small amount of dust movement is caused during the return process, it is not easy to directly spread to the outside.

[0035] Refer Figure 1 and Figure 2 As shown, the dust collection device in an embodiment of the present disclosure includes a dust cup 1, a dust cleaning component 2, and a driving component 3. The dust cup 1 can be used to receive particulate matters such as dust, hair, and lint. The dust cup 1 has a dust collection state and a cleaning state. When the dust cup 1 is in the dust collection state, the dust cup 1 forms a dust collection space 13 that can allow the dust-containing airflow to enter and store the separated dust, and the dust discharge structure of the dust cup 1 remains closed, or the dust cup 1 is stably installed on the main body of the cleaning device. When the dust cup 1 is in the cleaning state, the dust discharge structure of the dust cup 1 is opened, or the dust cup 1 is at least partially separated from the main body, so that the dust in the dust cup 1 can be discharged. The dust collection state and the cleaning state are used to represent the structural states of the dust cup 1 at different working stages of the dust collection device, and are not limited to whether the cleaning device is powered on or whether the negative pressure source is operating.

[0036] The dust cleaning component 2 is movably arranged in the dust cup 1, and the dust cleaning component 2 includes at least one of a dust scraping member 21 and a dust pressing member 22. When the dust cleaning component 2 only includes the dust scraping member 21, the dust scraping member 21 can move and remove the dust attached to the filter structure, the inner wall of the dust cup 1, or other surfaces to be cleaned. When the dust cleaning component 2 only includes the dust pressing member 22, the dust pressing member 22 can move towards the bottom of the dust cup 1 and compress the dust in the dust cup 1. When the dust cleaning component 2 includes both the dust scraping member 21 and the dust pressing member 22, the dust scraping member 21 and the dust pressing member 22 can be independently arranged or form a direct or indirect linkage relationship.

[0037] The dust cup 1 includes a cup body 11 and a cover 12. The cup body 11 forms a dust collection space 13 for storing dust and a dust discharge port 14 communicating with the dust collection space 13. The cover 12 is closable and can be opened and closed at the dust discharge port 14. When the dust cup 1 is in the dust collection state, the dust discharge port 14 is in the closed state, and / or the dust cup 1 is installed on the main unit of the cleaning equipment and forms a working connection that allows dust-laden airflow to enter. When the dust cup 1 is in the cleaning state, the cover 12 is opened to open the dust discharge port 14, and / or the dust cup 1 and the cyclone separator 5 provided in the dust cup 1 are removed from the main unit to allow the dust in the dust collection space 13 to be discharged.

[0038] The dust removal component 2 has an initial position and a cleaning position. The initial position is far from the bottom of the dust cup 1 and corresponds to the position of the dust removal component 2 when the dust cup 1 is collecting dust normally. When the dust removal component 2 is in the initial position, it can reduce the occupation of the dust collection space 13 and the dust deposition path, and reserve the movement stroke for subsequent dust scraping or pressing. The cleaning position is close to the bottom of the dust cup 1 and corresponds to the position where the dust removal component 2 stops after completing at least part of the dust removal action. When the dust removal component 2 is in the cleaning position, it can be close to the dust discharge port 14, the cover 12, or the bottom area of ​​the dust cup 1, but it is not required that the dust removal component 2 directly contact the bottom of the dust cup 1. The initial position and the cleaning position are two different positions of the dust removal component 2 along a preset movement path, and there is a movement stroke between them that allows the dust removal component 2 to perform the dust removal action.

[0039] The drive assembly 3 includes a drive component 31 and a transmission component 32. The transmission component 32 can be connected between the output end of the drive component 31 and the dust removal assembly 2, and is used to transmit the power output by the drive component 31 to the dust removal assembly 2. The drive component 31 can output rotary motion or linear motion, and the transmission component 32 can convert the driving force into movement of the dust removal assembly 2 along the axial direction of the dust cup 1 or other preset directions, depending on the output form of the drive component 31. The transmission component 32 can be fixedly connected, detachably connected, or in a transmission engagement with the dust removal assembly 2, as long as it enables the drive component 31 to control the movement of the dust removal assembly 2 between the initial position and the cleaning position.

[0040] When dust cup 1 needs cleaning, the drive assembly 3 drives the cleaning assembly 2 from its initial position to the cleaning position, either before or during the cleaning process. Before dust cup 1 enters the cleaning state, it refers to the stage where the cover 12 is not fully open or dust cup 1 is not fully removed from the main unit, but the dust cup 1 cleaning preparation action has already begun. When dust cup 1 enters the cleaning state, it means that the cover 12 is open, dust cup 1 has been removed from the main unit or other structures that allow dust to be discharged. The drive assembly 3 can trigger the movement of the cleaning assembly 2 at either of these points.

[0041] In one exemplary embodiment, the process before the dust cup 1 enters the cleaning state includes a stage where a cleaning preparation event is detected. This cleaning preparation event indicates that the dust cup 1 is about to perform dust discharge, disassembly, or other cleaning operations, but the dust cup 1 has not yet fully reached a cleaning state ready for dust discharge. The cleaning preparation event may include at least one of the following: the cleaning equipment receiving a dust removal command, the cover 12 switching from a locked state to an unlocked state, the dust cup disassembly switch for triggering the disassembly of the dust cup 1 being triggered, and the negative pressure source located on the main unit of the cleaning equipment ceasing operation.

[0042] The cleaning equipment receives a dust removal command, which can be input by the user via buttons, touch screen, or control terminal, or automatically generated by the cleaning equipment based on the amount of dust in the dust cup 1, the degree of clogging of the filter component 4, or the cumulative working time. The cover 12 switches from the locked state to the unlocked state, meaning the locking relationship between the cover 12 and the cup 11 is released, but the cover 12 is not fully open, and the dust outlet 14 is not fully open. The dust cup disassembly switch is triggered, meaning the operating or detection component used to release the installation relationship between the dust cup 1 and the main unit generates a trigger signal. The negative pressure source stops working, meaning the main unit stops creating negative pressure within the dust cup 1 for drawing in dust-laden airflow, and the dust cup 1 transitions from the normal dust collection process to the cleaning preparation process.

[0043] Upon detecting any cleaning preparation event, the drive component 3 drives the dust removal component 2 to move from the initial position to the cleaning position. By activating the dust removal component 2 before the dust cup 1 actually enters the cleaning state, the dust scraping and pressing actions can be completed or at least begin before the cover 12 is fully opened or the dust cup 1 is completely removed from the main unit, thus preparing for subsequent dust discharge.

[0044] After the dust removal component 2 reaches the cleaning position, the drive component 3 holds the dust removal component 2 in the cleaning position or within a preset holding range of the cleaning position while the dust cup 1 is in the cleaning state. The cleaning position can be the position where the dust removal component 2 is when it completes a predetermined dust scraping action, dust pressing action, or other dust removal action. The preset holding range is an allowable position interval set along the movement direction of the dust removal component 2 with the cleaning position as the reference. When the dust removal component 2 is within the preset holding range, the dust removal component 2 does not substantially return to its initial position relative to the dust cup 1. The dust removal component 2 may also produce a small displacement within the allowable assembly gap or control error range, or it may actively move a preset distance towards the initial position by the drive component 3 after completing dust pressing. This preset distance is less than the complete return distance required for the dust removal component 2 to return to the initial position. The dust removal component 2 will not return to its position prematurely before the dust is discharged or the dust cup 1 is repositioned, which can reduce the disturbance of the dust at the bottom of the dust cup 1 caused by the reverse movement of the dust removal component 2, and reduce the possibility of dust being re-raised or entering the movement gap of the dust removal component 2.

[0045] After the dust cup 1 returns to the dust collection state, the drive component 3 drives the dust removal component 2 to return from the cleaning position to the initial position. The dust cup 1 returning to the dust collection state can be manifested as the cover 12 closing again and / or the dust cup 1 being reinstalled on the main unit of the cleaning equipment and reaching the preset installation position, or the dust discharge channel of the dust cup 1 being resealed. Closing the cover 12 means that the cover 12 moves from the open position to the closed position and closes the dust discharge port 14; the cover 12 can simultaneously re-establish a locking connection with the cup body 11. Reinstalling the dust cup 1 on the main unit means that the dust cup 1 moves to the preset installation position on the main unit and completes the necessary positioning, locking, air path connection, or transmission connection.

[0046] The closed state of the cover 12 can be detected by the operation of a mechanical switch, magnetic detector, Hall effect sensor, photoelectric detector, or cover locking structure. Whether the dust cup 1 has been reinstalled to the main unit can be detected by an installation detection switch, docking detection device, magnetic detector, or a mechanical structure triggered by the dust cup 1. The status signals output by the above detection structures can serve as the trigger for the drive component 3 to drive the dust cleaning component 2 back to its original position.

[0047] After the dust cup 1 is resealed or repositioned, the dust removal component 2 returns to its original position, separating the return process from the dust discharge process in time. This prevents the dust removal component 2 from moving in the opposite direction within the open dust cup 1, which could cause secondary dust generation. It also reduces the amount of dust trapped in the gaps between the dust removal component 2 and the dust cup 1, the filter component 4, or the transmission component 32.

[0048] In one exemplary embodiment, the reference Figure 1 and Figure 3 As shown, a filter assembly 4 is provided inside the dust cup 1. The filter assembly 4 is used to separate the dust-laden airflow entering the dust cup 1. The filter assembly 4 may include a filter screen 41, a cyclone separator, a filter cartridge, or other structures capable of intercepting dust. A space for dust collection and for the movement of the cleaning assembly 2 can be formed between the filter assembly 4 and the inner wall of the dust cup 1.

[0049] The dust removal assembly 2 includes a scraper 21 and a pressing component 22. The scraper 21 can move along the filter assembly 4, causing relative movement between the scraper 21 and the surface of the filter assembly 4 to be cleaned. The scraper 21 can be arranged around the filter assembly 4 or on one side of the filter assembly 4. When the scraper 21 moves, it contacts or approaches the filter assembly 4, scraping off dust, lint, and fibers adhering to the surface of the filter assembly 4. The scraper 21 can reduce the obstruction of filter pores by deposits and allow deposits to enter the dust collection area of ​​the dust cup 1.

[0050] The dust-pressing component 22 is disposed within the dust cup 1 and is movable toward the bottom of the dust cup 1. The dust-pressing component 22 can be disposed around the filter assembly 4 or between the filter assembly 4 and the inner wall of the dust cup 1. The dust-pressing component 22 has a pressing surface for contacting dust. As the dust-pressing component 22 moves toward the bottom of the dust cup 1, the pressing surface contacts the loose dust, hair, and lint inside the dust cup 1, pressing them toward the bottom of the dust cup 1. The dust-pressing component 22 reduces the volume occupied by loose dust and concentrates the dust scraped off from the filter assembly 4 by the dust scraper 21 and the existing dust in the dust cup 1 in the bottom area.

[0051] The dust scraper 21 and the dust pressing component 22 are responsible for cleaning the filter assembly 4 and compressing the dust inside the dust cup 1, respectively. They can be driven by the same drive component 3 or they can operate sequentially in the same transmission path. The dust scraper 21 first removes the attached material from the filter assembly 4, and the dust pressing component 22 then presses the scraped material and the dust in the dust cup 1 to the bottom, so that the dust cleaning component 2 can complete the dust collection before the dust cup 1 enters the cleaning state, which facilitates the subsequent discharge of dust.

[0052] Specifically, refer to Figure 1 and Figure 2 As shown, the drive assembly 3 drives the scraper 21 to perform the scraping action first, and then drives the pressing ash 22 to perform the pressing action. The actions of the scraper 21 and the pressing ash 22 occur sequentially. When the scraper 21 performs the scraping action, it moves along the filter assembly 4 and removes the adhering substances from the surface of the filter assembly 4. During this stage, the pressing ash 22 can remain stationary or only undergo a slight displacement that does not affect the pressing sequence.

[0053] After the scraper 21 completes its predetermined scraping stroke, the drive assembly 3 moves the pressing component 22 toward the bottom of the dust cup 1. The drive assembly 3 can drive the scraper 21 and the pressing component 22 sequentially via the same transmission component 32, or it can change the target of the driving force through a transmission switching structure. The scraper 21 can also directly push against the pressing component 22 after reaching the predetermined position, so that the subsequent movement of the scraper 21 is converted into the downward movement of the pressing component 22.

[0054] As the dust-pressing component 22 moves towards the bottom of the dust cup 1, it presses the dust scraped off from the filter assembly 4 by the dust scraper 21, along with the existing dust in the dust cup 1, together towards the bottom. The sequence of scraping dust before pressing dust ensures that the deposits on the filter assembly 4 can enter the dust collection area before pressing dust, reducing the likelihood that a significant amount of dust will remain in the filter assembly 4 after the dust-pressing component 22 has finished moving downwards.

[0055] After the ash-pressing component 22 reaches the cleaning position, the drive assembly 3 holds the ash-pressing component 22 in the bottom area of ​​the dust cup 1. This holding method can be achieved by the drive assembly 31 continuously providing holding force, or by the self-locking action of the transmission component 32, the position holding of the output shaft 312 of the drive assembly 31, or a mechanical limiting structure. During ash discharge from the dust cup 1, the ash-pressing component 22 does not immediately return to its initial position. Holding the ash-pressing component 22 in the bottom area reduces the disturbance of the compacted dust caused by its upward movement and reduces the possibility of the ash-pressing component 22 bringing dust into the movement gap when it reverses through loose dust.

[0056] The position of the ash-pressing component 22 can be the final position when the ash-pressing action is completed, or it can be adjusted by the drive component 3 to a position more suitable for ash discharge from the dust cup 1 after the ash-pressing action is completed. As long as the ash-pressing component 22 remains close to the bottom of the dust cup 1 during the cleaning of the dust cup 1 and returns to its original position after the dust cup 1 resumes the dust collection state, the above-mentioned action relationship can be formed.

[0057] In one exemplary embodiment, the reference Figures 1 to 3 As shown, the filter assembly 4 includes a filter screen 41 and a cylindrical portion 42 arranged adjacent to each other along the axial direction of the dust cup 1. The filter screen 41 constitutes the filtration area of ​​the filter assembly 4, used to intercept dust, hair, and particulate matter in the dust-laden airflow. The cylindrical portion 42 is located on one side of the filter screen 41 along the axial direction of the dust cup 1 and is close to the bottom of the dust cup 1. The scraper 21 can move from the outer periphery of the filter screen 41 to the outer periphery of the cylindrical portion 42, so that the movement path of the scraper 21 crosses the corresponding area of ​​the filter screen 41 and the corresponding area of ​​the cylindrical portion 42.

[0058] When the dust scraper 21 is located on the outer periphery of the filter screen 41, it moves along the filter screen 41 and scrapes off the dust adhering to its surface. After passing the end of the filter screen 41, the dust scraper 21 continues to move and enters the outer periphery of the cylinder 42. The outer periphery of the cylinder 42 thus forms a linkage area after the dust scraping action is completed. The dust pressing member 22 is at least partially located between the inner wall of the dust cup 1 and the outer wall of the cylinder 42, and is capable of moving along the outer periphery of the cylinder 42.

[0059] At least a portion of the ash-pressing component 22 is located on the axial movement path of the ash-scraping component 21 on the outer periphery of the cylinder 42. Before the ash-scraping component 21 enters the outer periphery of the cylinder 42, the ash-scraping component 21 and the ash-pressing component 22 can maintain an axial distance. After the ash-scraping component 21 moves to the outer periphery of the cylinder 42, the ash-scraping component 21 and the ash-pressing component 22 come into axial contact, so that when the ash-scraping component 21 continues to move, it can transmit a force toward the bottom of the dust cup 1 to the ash-pressing component 22.

[0060] Specifically, refer to Figures 1 to 3As shown, the dust scraper 21 includes a connecting ring 211, and the dust pressing component 22 includes a sleeve portion 221. The connecting ring 211 is sleeved on the outer periphery of the filter assembly 4, and the connecting ring 211 has a pushing portion 212 protruding radially inward. The sleeve portion 221 is sleeved on the outer periphery of the cylindrical portion 42, and the sleeve portion 221 has an abutting portion 222 corresponding to the pushing portion 212. The abutting portion 222 is located on the path along which the pushing portion 212 moves axially along the dust cup 1. After the connecting ring 211 moves to the outer periphery of the cylindrical portion 42, the pushing portion 212 abuts against the abutting portion 222, and the pushing portion 212 pushes the sleeve portion 221 to move through the abutting portion 222. Multiple pushing portions 212 and abutting portions 222 can be distributed circumferentially along the dust cup 1, so that the dust pressing component 22 is subjected to a more uniform axial force.

[0061] This structure uses the latter part of the stroke of the scraper 21 to drive the pressing component 22. The scraper 21 completes the scraping of ash through the first part of the stroke of the filter screen 41, and the scraper 21 pushes the pressing component 22 to complete the pressing of ash through the latter part of the outer periphery of the cylinder 42. The filter assembly 4, the scraper 21, and the pressing component 22 are arranged along the same axial direction, which can reduce the transmission structure required to drive the pressing component 22 separately, and make the action sequence of scraping ash followed by pressing ash triggered by the positional relationship between the components.

[0062] In one exemplary embodiment, the reference Figure 1 and Figure 2 As shown, the driving component 31 includes a drive motor 311, and the transmission component 32 includes a transmission shaft 321. The drive motor 311 is used to output rotational power, and the transmission shaft 321 is connected to the dust removal assembly 2 and the output shaft 312 of the drive motor 311. When the output shaft 312 of the drive motor 311 rotates, it drives the dust removal assembly 2 to move between the initial position and the cleaning position through the transmission shaft 321.

[0063] The drive shaft 321 can be directly connected to the output shaft 312 of the drive motor 311, or it can be connected through gears, couplings, threaded transmission structures, or other conversion structures. When the drive motor 311 outputs rotary motion, the drive shaft 321 can convert the rotary motion into linear movement of the dust removal assembly 2 through threaded pairs, helical grooves, or gear rack structures.

[0064] The part of the drive shaft 321 that connects to the dust removal assembly 2 can be fixed to the scraper 21 or to an intermediate component for connecting the scraper 21. When the dust removal assembly 2 includes the scraper 21 and the pressing component 22, the drive shaft 321 can drive the scraper 21, which in turn drives the pressing component 22; the drive shaft 321 can also act on the scraper 21 and the pressing component 22 sequentially through different force transmission parts.

[0065] The drive motor 311 facilitates controlling the moving direction, moving stroke, and stopping position of the dust cleaning component 2. When the drive motor 311 operates forward, it can drive the dust cleaning component 2 to move from the initial position to the cleaning position. When the drive motor 311 stops or maintains the rotation angle of the output shaft 312, it can hold the dust cleaning component 2 at the cleaning position. After the dust cup 1 resumes the dust collection state, the drive motor 311 operates in reverse to make the dust cleaning component 2 return to the initial position. By controlling the rotation timing of the drive motor 311, the moving and holding actions of the dust cleaning component 2 can be matched with the state of the dust cup 1.

[0066] In an exemplary embodiment, the dust cup 1 can be docked with the main body of the cleaning device. When the dust cup 1 is in the docking state, the dust cup 1 is installed at the preset installation position of the main body and forms a connection relationship that can support normal dust collection work with the main body. When the dust cup 1 is not in the docking state, it includes the states where the dust cup 1 has been removed from the main body, the dust cup 1 is being loaded or unloaded but has not reached the preset position, and the dust cup 1 is located near the main body but has not completed positioning or locking.

[0067] See Figure 2 As shown, when the dust cup 1 is not in the docking state, the dust cleaning component 2 is at the cleaning position. The dust cleaning component 2 may have moved to the cleaning position before the dust cup 1 is removed from the main body, or may move to the cleaning position during the action of the dust cup 1 detaching from the main body. After the dust cup 1 detaches from the main body, the dust cleaning component 2 continues to stay close to the bottom of the dust cup 1 until the dust cup 1 is re-docked with the main body.

[0068] The transmission shaft 321 does not protrude beyond the outer contour of the dust cup 1 when the dust cup 1 is not in the docking state. The outer contour of the dust cup 1 is the envelope boundary formed by the normal assembly structure of the dust cup 1 in the external space. The transmission shaft 321 not protruding beyond the outer contour of the dust cup 1 means that the end of the transmission shaft 321 close to the main body is located within this envelope boundary or is basically flush with this envelope boundary, without forming an obvious protruding structure that hinders the removal and placement of the dust cup 1.

[0069] When the dust cleaning component 2 moves to the cleaning position, the transmission shaft 321 can move with the dust cleaning component 2 towards the inside or the bottom of the dust cup 1, causing the outer end of the transmission shaft 321 to retract into the dust cup 1. The transmission shaft 321 not protruding beyond the outer contour of the dust cup 1 can reduce the possibility of the transmission shaft 321 colliding with external objects during the disassembly and cleaning of the dust cup 1, and can also prevent users from directly touching the protruding transmission components.

[0070] Specifically, see Figure 2As shown, the drive motor 311 maintains the rotation angle of the output shaft 312 during the cleaning state of the dust cup 1. The rotation angle of the output shaft 312 corresponds to the stop position of the drive motor 311 when the dust removal assembly 2 is in the cleaning position. The drive motor 311 can continuously output a holding torque to make the output shaft 312 resist the reverse torque applied by the transmission shaft 321. The drive motor 311 can also be combined with a reduction mechanism, a worm gear structure, or a transmission structure with self-locking characteristics to make it difficult for the output shaft 312 to rotate in the opposite direction after it stops.

[0071] When the drive motor 311 maintains the rotation angle of the output shaft 312, the position of the transmission shaft 321 is maintained accordingly. The transmission shaft 321 is connected to the dust removal assembly 2, and maintaining the position of the transmission shaft 321 can limit the movement of the dust removal assembly 2 towards its initial position. When the dust pressing component 22 has pressed the dust to the bottom of the dust cup 1, the drive motor 311 maintains the position of the dust pressing component 22 through the transmission shaft 321, so that the dust pressing component 22 will not return to its original position prematurely due to the reaction force of the dust or changes in the posture of the equipment.

[0072] After the dust cup 1 completes cleaning and returns to the dust collection state, the drive motor 311 releases its hold on the current rotation angle and drives the output shaft 312 in the reverse direction. The output shaft 312 drives the dust removal assembly 2 from the cleaning position back to the initial position via the transmission shaft 321. This control method uses the drive motor 311 and the transmission shaft 321 to hold the dust removal assembly 2, eliminating the need for a separate locking device.

[0073] In one exemplary embodiment, the reference Figure 1 and Figure 2 As shown, the dust cup 1 includes a cup body 11 and a cover 12. The cup body 11 forms a dust collection space 13 and a dust discharge port 14 communicating with the dust collection space 13. The dust collection space 13 is used to hold the filter assembly 4, the dust removal assembly 2, and the separated dust. The dust discharge port 14 can be located at the bottom of the cup body 11, allowing the dust to be discharged under gravity. The cover 12 is closable at the dust discharge port 14 and can move between a closed position and an open position.

[0074] When the cover 12 is in the closed position, it seals the dust outlet 14, allowing the dust cup 1 to form a closed structure for normal dust collection. When the cover 12 is in the open position, the dust outlet 14 is open, and the dust cup 1 enters the cleaning state. Dust in the dust cup 1 can be discharged through the dust outlet 14.

[0075] The drive assembly 3 can drive the dust removal assembly 2 from its initial position to the cleaning position before the cover 12 is opened. This movement before the cover 12 is opened allows the dust removal assembly 2 to first scrape or press down the dust, concentrating it near the dust outlet 14. The drive assembly 3 can also drive the dust removal assembly 2 when the cover 12 begins to open or opens to a predetermined angle.

[0076] While the cover 12 is open, the drive assembly 3 keeps the dust cleaning assembly 2 in the cleaning position. The dust cleaning assembly 2 does not immediately return to its initial position when the dust outlet 14 is open. When the user shakes the dust cup 1, pours out the dust, or taps the cup body 11, the dust cleaning assembly 2 remains in a position near the bottom, which reduces the disturbance of residual dust by the return motion.

[0077] After the cover 12 is closed again, the dust cup 1 returns to the dust collection state. Upon detecting or receiving a signal that the cover 12 is closed, the drive assembly 3 drives the cleaning assembly 2 to return from the cleaning position to its initial position. Whether the cover 12 is closed can be determined by a mechanical linkage switch, magnetic detection element, micro switch, or other position detection structure. Arranging the return action of the cleaning assembly 2 after the cover 12 is closed ensures that the return action occurs inside the relatively enclosed dust cup 1, preventing dust from easily escaping directly from the dust cup 1 even if a small amount of dust is emitted.

[0078] In one exemplary embodiment, the reference Figure 1 and Figure 2 As shown, the dust cup 1 is equipped with a cyclone separation mechanism 5, which rotates the dust-laden airflow and separates the dust in the airflow using centrifugal force. The cyclone separation mechanism 5 can be fixedly installed in the dust cup 1 or can be detachably combined with the dust cup 1. The dust cup 1 and the cyclone separation mechanism 5 can be removed from the main unit of the cleaning equipment as a whole, allowing the user to remove the dust collection structure and the separation structure at the same time.

[0079] When the dust cup 1 and cyclone separator 5 are installed on the main unit, the dust cup 1 is in a suitable installation position for normal dust collection, and the airflow channel of the cyclone separator 5 is connected to the negative pressure channel inside the main unit. After the dust cup 1 and cyclone separator 5 are removed from the main unit, the dust cup 1 enters the cleaning state. Users can open the dust cup 1, empty the dust, and also clean the dust cup 1 and cyclone separator 5.

[0080] Before or during the removal of the dust cup 1 and cyclone separation mechanism 5 from the main unit, the drive assembly 3 can drive the cleaning assembly 2 to the cleaning position. While the dust cup 1 and cyclone separation mechanism 5 are not reinstalled into the main unit, the drive assembly 3 will keep the cleaning assembly 2 in the cleaning position, and the cleaning assembly 2 will not automatically return to its initial position when the dust cup 1 is separated from the main unit.

[0081] The dust removal assembly 2 remains in the bottom area, preventing it from moving back and forth along the dust cup 1 when the user cleans it. The dust removal assembly 2 does not have a return motion, reducing the amount of dust entering the gaps between the dust removal assembly 2 and the filter assembly 4, the inner wall of the dust cup 1, or the drive shaft 321.

[0082] After the dust cup 1 and cyclone separation mechanism 5 are reinstalled onto the main unit and reach the preset position, the dust cup 1 returns to the dust collection state. The main unit can confirm that the dust cup 1 is in place through a mechanical detection structure, an electrical detection structure, or a magnetic detection structure. The drive assembly 3 then drives the dust removal assembly 2 back to the initial position. This sequence of actions can prevent the drive shaft 321 or the dust removal assembly 2 from returning to its original position before the dust cup 1 is stably installed.

[0083] This disclosure also provides a cleaning device including a main unit, a negative pressure source, and the aforementioned dust collection device. The main unit is used to mount the negative pressure source, the dust collection device, and a control unit of the cleaning device. The dust collection device is detachably mounted to the main unit, allowing the user to remove the dust collection device from the main unit and empty the dust cup. The cleaning device can be a handheld vacuum cleaner, a stick vacuum cleaner, a canister vacuum cleaner, an upright vacuum cleaner, or other devices that utilize negative pressure to collect dust.

[0084] The negative pressure source may include a motor and a fan driven by the motor. When the negative pressure source is working, it creates negative pressure in the suction channel of the dust collection device and cleaning equipment, causing the external dust-laden airflow to enter the dust collection device. The filter assembly or cyclone separator separates the dust from the dust-laden airflow, and the separated dust is stored in a dust cup. The filtered airflow flows to the negative pressure source.

[0085] This disclosure also provides a control method for the aforementioned dust collection device, which includes a dust cup, a dust cleaning assembly, and a drive assembly. The dust cleaning assembly is movably disposed within the dust cup and includes at least one of a scraper and a pressing component. The drive assembly controls the movement of the dust cleaning assembly between an initial position and a cleaning position.

[0086] Before or during the cleaning process, the drive component moves the dust removal component from its initial position to the cleaning position. Before the dust cup enters the cleaning state, this may include receiving a dust emptying command, unlocking the cover, triggering the dust cup disassembly switch, or the main unit stopping negative pressure operation. When the dust cup enters the cleaning state, this may include the cover starting to open, the dust outlet opening, or the dust cup starting to detach from the main unit.

[0087] When the dust removal component moves from the initial position to the cleaning position, it can perform a dust scraping action, a dust pressing action, or both. After the dust removal component reaches the cleaning position, the drive component stops driving the dust removal component to move towards the bottom of the dust cup and keeps the dust removal component in the cleaning position.

[0088] During the dust cup cleaning process, the drive assembly restricts the movement of the cleaning assembly towards its initial position. This restriction can be achieved through a continuous application of holding force by the drive component, self-locking of the transmission structure, locking by the brake component, or position control. Dust within the dust cup is discharged through the exhaust port during this phase.

[0089] After the dust cup is cleaned and returns to the dust collection state, the drive component then drives the dust removal component back to its initial position. The return to the dust collection state can be determined based on a cover closing signal, a dust cup installation signal, or a dust discharge structure reset signal. Once the dust removal component returns to its initial position, the dust collection device can resume dust collection operations.

[0090] This control method maps the downward movement, cleaning position holding movement, and return movement of the dust cleaning component to the dust cup state, thereby preventing the dust cleaning component from returning to its original position prematurely when the dust cup is open or detached from the host.

[0091] In one exemplary embodiment, the dust removal component includes a dust scraper and a dust pressing component, and the process of driving the dust removal component to the cleaning position includes a dust scraping stage, a dust pressing stage, and a position holding stage.

[0092] During the dust removal phase, the drive assembly moves the dust removal component along the filter assembly. The dust removal component contacts the surface of the filter assembly and scrapes off the dust, lint, and fibers adhering to it. The scraped-off dust enters the dust collection area of ​​the dust cup. The dust removal phase ends after the dust removal component completes its predetermined stroke.

[0093] During the dust compaction stage, the drive assembly moves the dust compactor towards the bottom of the dust cup. The drive assembly can directly drive the dust compactor or push it through the scraper. The dust compactor contacts the loose dust inside the dust cup and presses the scraped material and existing dust towards the bottom. The dust compaction stage ends once the dust compactor reaches the bottom area of ​​the dust cup.

[0094] During the position holding phase, the drive assembly holds the dust suppressor in the bottom area of ​​the dust cup. The dust suppressor does not return to its initial position during dust cup cleaning. As dust is discharged from the dust cup, the dust suppressor remains close to the bottom to minimize disturbance to the dust caused by reverse movement.

[0095] After the dust cup returns to the dust collection state, the drive component drives the ash-pressing component away from the bottom area and returns the dust-cleaning component to its initial position. The control sequence of first scraping ash, then pressing ash, holding during cleaning, and returning to the original position after cleaning ensures that the dust on the filter component first enters the dust collection area, is then compressed together with the dust in the dust cup, and separates the return action from the ash discharge action.

[0096] In one exemplary embodiment, the dust cup includes a cover that is openable and closable at the dust discharge port of the dust cup, and the control method can control the movement of the dust removal component according to the open and closed state of the cover.

[0097] Before or during the opening of the cover, the drive assembly moves the dust removal assembly to the cleaning position. Before the cover opens, this may include a stage where the cover locking mechanism is unlocked but the cover has not yet rotated. During the opening of the cover, this may include a stage where the cover moves from the closed position to the open position. The dust removal assembly can complete scraping and pressing of dust before the dust outlet is fully open.

[0098] During the opening of the dust cup, the drive assembly holds the dust removal assembly in the cleaning position. This includes both the fully open position and the intermediate position where dust can be discharged. When the user emptys the dust cup, the dust removal assembly does not move towards its initial position.

[0099] After the cover closes again, the drive assembly drives the dust removal assembly back to its initial position. The cover can be determined by the cover abutting against the dust cup, the locking structure re-locking, or the cover position detector outputting a closing signal. After the cover closes, a closed space is re-formed inside the dust cup. The dust removal assembly returning to its original position during this stage reduces the amount of dust that escapes directly from the dust outlet during the return process.

[0100] The cover status can be determined by the operation of a mechanical switch, Hall element, photoelectric sensor, or cover locking mechanism. The drive assembly switches the movement, holding, and return actions of the dust removal assembly according to the cover status.

[0101] In one exemplary embodiment, the dust cup is detachably mounted to the main unit of the cleaning equipment. When the dust cup is mounted to the main unit, at least one of the following relationships exists between the dust cup and the main unit: a positioning relationship, a locking relationship, and an air passage connection relationship, enabling the dust cup to cooperate with the main unit to complete normal dust collection. After the dust cup is removed from the main unit, the user can move the dust cup to a trash can or other dust discharge location and discharge the internal dust through the dust discharge structure, open end, or detachable structure of the dust cup itself. This embodiment does not require the dust cup to have an openable and closable cover, nor does it require dust discharge to be completed by opening the cover.

[0102] Before or during the removal of the dust cup from the main unit, move the cleaning assembly from its initial position to the cleaning position. Before removal, this could be when the dust cup removal switch has been triggered, the locking relationship between the dust cup and the main unit has been released, the main unit has stopped operating under negative pressure, or the controller has received a dust cup removal command. During removal, the dust cup can move outward from its installation position on the main unit, the positioning structure between the dust cup and the main unit gradually separates, or the transmission connection begins to disengage. During this stage, the cleaning assembly moves to the cleaning position, completing scraping, pressing, or other cleaning actions before the dust cup is completely detached from the main unit, thus pre-concentrating attached and loose dust in the area near the dust cup's discharge end.

[0103] While the dust cup is removed from the main unit and not yet reinstalled, the cleaning assembly is held in the cleaning position or within a preset holding range of that position. This period includes the handling, emptying, cleaning, drying, and reassembly preparation stages after the dust cup is completely detached from the main unit. The cleaning assembly does not perform a complete return-to-initial-position movement, which reduces dust re-entrainment and dust trapping caused by the cleaning assembly reversing through the residual dust area. The cleaning assembly can be precisely positioned in the cleaning position, or it can be held within a preset holding range near the cleaning position, provided that the transmission components do not protrude from the outer contour of the dust cup, the cleaning assembly remains close to the bottom of the dust cup, and the complete return-to-initial-position movement is not completed.

[0104] After the dust cup is reinstalled into the main unit, the cleaning assembly returns to its initial position. Reinstallation means the dust cup reaches its preset installation position and completes the positioning, locking, airflow connection, or transmission connection required for normal dust collection. If the dust cup is only partially inserted into the main unit but the necessary connections are not yet complete, it is not considered reinstalled. Whether the dust cup has been reinstalled can be determined by the status of the installation detection switch, mechanical trigger structure, magnetic detection element, or locking structure. Once the dust cup is detected as reinstalled, the cleaning assembly is released from its holding position or preset holding range and returns to its initial position. This ensures the cleaning assembly returns to its original position after the dust cup has re-established a stable installation relationship, preventing the cleaning assembly from moving independently during dust cup disassembly and emptying.

[0105] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0106] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dust collection device, characterized in that, include: The dust cup has a dust collection state for collecting dust and a cleaning state for discharging dust. A dust removal assembly is movably disposed within the dust cup. The dust removal assembly includes at least one of a dust scraper and a dust pressing component. The dust removal assembly has an initial position away from the bottom of the dust cup and a cleaning position close to the bottom of the dust cup. A driving component for driving the dust removal component; The driving component is configured to drive the dust removal component from the initial position to the cleaning position before or when the dust cup enters the cleaning state, maintain the dust removal component at the cleaning position or within a preset range of the cleaning position during the cleaning state, and drive the dust removal component back from the cleaning position to the initial position after detecting that the dust cup has returned to the dust collection state.

2. The dust collection device according to claim 1, characterized in that, The dust cup is equipped with a filter assembly, and the dust removal assembly includes a dust scraper and a dust pressing component. The dust scraper can move along the filter assembly to scrape off the dust adhering to the filter assembly, and the dust pressing component can move toward the bottom of the dust cup to compress the dust in the dust cup.

3. The dust collection device according to claim 2, characterized in that, The drive component is used to drive the scraper to perform a scraping action first, and then drive the pressing component to move toward the bottom of the dust cup to perform a pressing action, and after the pressing component reaches the cleaning position, it keeps the pressing component in the bottom area of ​​the dust cup.

4. The dust collection device according to claim 3, characterized in that, The filter assembly includes a filter screen and a cylinder arranged adjacent to each other along the axial direction of the dust cup. The dust scraper can move from the outer periphery of the filter screen to the outer periphery of the cylinder. At least a portion of the dust pressing member is located on the axial movement path of the dust scraper on the outer periphery of the cylinder, so that after the dust scraper moves to the outer periphery of the cylinder, it forms an interference relationship with the dust pressing member along the axial direction of the dust cup.

5. The dust collection device according to claim 1, characterized in that, The drive assembly includes a drive component and a transmission component. The drive component includes a drive motor, and the transmission component includes a transmission shaft. The transmission shaft is connected to the output shaft of the dust removal assembly and the drive motor.

6. The dust collection device according to claim 5, characterized in that, When the dust cup is not in the docking state with the main unit of the cleaning equipment, the dust removal component is in the cleaning position, and the drive shaft does not protrude from the outer contour of the dust cup.

7. The dust collection device according to claim 5, characterized in that, The drive motor maintains the rotation angle of the output shaft during the cleaning state of the dust cup, so as to restrict the dust removal assembly from leaving the cleaning position via the drive shaft.

8. The dust collection device according to claim 1, characterized in that, The dust cup includes a cup body and a cover. The cup body forms a dust collection space and a dust discharge port communicating with the dust collection space. The cover is closable and disposed at the dust discharge port. The cleaning state of the dust cup includes a state in which the cover is open and the dust discharge port is open. The drive component is used to hold the dust cleaning component in the cleaning position during the opening of the cover and drive the dust cleaning component back to the initial position after the cover is closed.

9. The dust collection device according to claim 1, characterized in that, The dust cup is equipped with a cyclone separation mechanism, and the dust cup and the cyclone separation mechanism can be removed from the main unit of the cleaning equipment as a whole; the cleaning state of the dust cup includes the state in which the dust cup and the cyclone separation mechanism are removed from the main unit, and the drive component is used to keep the dust removal component in the cleaning position when the dust cup and the cyclone separation mechanism are not reinstalled to the main unit.

10. The dust collection device according to claim 1, characterized in that, Before the dust cup enters the cleaning state, there is a stage where a cleaning preparation event is detected. The cleaning preparation event includes at least one of the following: the cleaning equipment receives a dust removal command, the dust cup cover switches from a locked state to an unlocked state, the dust cup disassembly switch for triggering the disassembly of the dust cup is triggered, and the negative pressure source of the main unit of the cleaning equipment stops working. The drive component is used to drive the dust removal component to move from the initial position to the cleaning position after the cleaning preparation event is detected.

11. A cleaning device, characterized in that, The device includes a main unit, a negative pressure source, and a dust collection device according to any one of claims 1 to 10, wherein the dust collection device is detachably installed on the main unit, and the negative pressure source is used to drive the dust-laden airflow into the dust collection device.

12. A control method for a dust collection device, the dust collection device comprising a dust cup, a dust cleaning assembly movably disposed within the dust cup, and a driving assembly for driving the dust cleaning assembly to move, the dust cleaning assembly comprising at least one of a scraper and a pressing component, characterized in that, The control method includes: Before or during the dust cup's dust discharge state, the dust removal component is driven by the drive component to move from an initial position away from the bottom of the dust cup to a cleaning position close to the bottom of the dust cup. During the cleaning state of the dust cup, the dust removal component is held in the cleaning position or within a preset holding range of the cleaning position by the drive component; After the dust cup returns to the dust collection state, the driving component drives the dust removal component to return from the cleaning position to the initial position.

13. The control method according to claim 12, characterized in that, The dust removal assembly includes a dust scraper and a dust pressing component. Driving the dust removal assembly to move to the cleaning position or within a preset holding range of the cleaning position includes: The dust scraper is driven to move along the filter assembly of the dust collection device to scrape off the dust adhering to the filter assembly; After the dust scraper completes the dust scraping, the dust pressing component is driven to move toward the bottom of the dust cup to compress the dust in the dust cup; After the ash-pressing component moves to the bottom area of ​​the dust cup, the ash-pressing component is held in the bottom area of ​​the dust cup.

14. The control method according to claim 12, characterized in that, The dust cup includes a cover that can be opened and closed at the dust discharge port of the dust cup, and the control method includes: Before or while the cover is being opened, the dust removal assembly is moved to the cleaning position; During the opening of the cover, the dust removal assembly is held in the cleaning position or within a preset holding range of the cleaning position; After the cover is closed again, the dust removal assembly is driven back to the initial position.

15. The control method according to claim 12, characterized in that, The dust cup is detachably mounted to the main unit of the cleaning equipment, and the control method includes: Before or during the removal of the dust cup from the main unit, the dust removal assembly is moved to the cleaning position; While the dust cup is removed from the main unit and not reinstalled to the main unit, the dust removal assembly is held in the cleaning position or within a preset holding range of the cleaning position; After detecting that the dust cup has been reinstalled into the host, the cleaning assembly is driven back to its initial position.

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