A cleaning apparatus and self-cleaning filter device thereof

Abstract

The application discloses a cleaning device and a self-cleaning filtering device thereof. The self-cleaning filtering device comprises a hepa assembly and a filter screen assembly sleeved outside the hepa assembly. The self-cleaning filtering device further comprises a rotating member arranged at least partially between the hepa assembly and the filter screen assembly, and the rotating member is provided with a beating member and a dust scraping member. A driving member is configured to drive the rotating member to rotate and synchronously drive the beating member and the dust scraping member to rotate, so as to clean the hepa assembly and the filter screen assembly respectively. The cleaning device comprises the self-cleaning filtering device. The cleaning device and the self-cleaning filtering device thereof provided by the application can clean the hepa assembly and the filter screen assembly without disassembly, are convenient to use and have high cleaning degree.

Description

Technical Field

[0001] This invention relates to the field of cleaning technology, and in particular to a cleaning device and its self-cleaning filter. Background Technology

[0002] Currently, cleaning equipment such as vacuum cleaners are typically equipped with a dust cup, which usually contains a filter device. This filter device typically includes a HEPA filter assembly and a mesh filter assembly to filter dust. During operation, the dust cup draws in dust, debris, and other impurities through the suction port. Larger dust and debris particles are filtered by the HEPA filter assembly and the mesh filter assembly and remain inside the dust cup.

[0003] The main component of the HEPA filter assembly is the HEPA paper, a high-efficiency filter that can block extremely fine dust with an efficiency of 99.97%. Due to its low air permeability, it is usually made in a wavy shape to increase the air permeability area, creating multiple slits around its circumference. Over time, dust accumulates on the HEPA paper, especially in the slits, affecting its suction performance. The main component of the filter assembly is the metal mesh. While the outer wall of the metal mesh is easy to wipe clean, its inner wall also attracts dust due to static electricity, requiring regular cleaning of both the HEPA paper and the inner wall of the metal mesh. Currently, cleaning methods for the HEPA paper and the inner wall of the metal mesh are mostly manual, requiring disassembly and manual washing. This process is not only tedious and time-consuming but also easily causes secondary environmental pollution. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a cleaning device and its self-cleaning filter, which can clean the HEPA filter assembly and filter screen assembly without disassembly, making it convenient to use and achieving a high degree of cleanliness.

[0005] This invention is achieved through the following technical solution:

[0006] A self-cleaning filtration device includes a HEPA filter assembly and a filter screen assembly sleeved outside the HEPA filter assembly. The self-cleaning filtration device further includes:

[0007] A rotating component, at least partially disposed between the HEPA assembly and the filter assembly, and the rotating component is provided with a tapping component and a scraping component;

[0008] A driving component is configured to drive the rotating component to rotate and simultaneously drive the tapping component and the scraping component to rotate, so as to clean the HEPA assembly and the filter assembly respectively.

[0009] Furthermore, the rotating component includes a fixed wall disposed between the HEPA assembly and the filter assembly, the side of the fixed wall facing the HEPA assembly being fixedly connected to the beater, and the side of the fixed wall facing the filter assembly being fixedly connected to the scraper.

[0010] Furthermore, the fixed wall has a plurality of first clearance holes for airflow in a circumferential direction, and a support strip is formed between adjacent first clearance holes. The tapping component and the scraping component are both fixedly connected to the support strip.

[0011] Furthermore, the striking element is integrally formed with the support strip, and the striking element extends at least partially into the gap of the HEPA assembly.

[0012] Furthermore, the scraper includes a snap-fit ​​part and a scraper part that are connected to each other. A groove is formed on the support strip. The snap-fit ​​part snaps into the groove, and the scraper part abuts against the metal filter screen of the filter assembly.

[0013] Furthermore, the rotating component includes a transmission shaft fixedly connected to the fixed wall, the transmission shaft being disposed on the central axis of the fixed wall, and the output shaft of the driving component being coaxially disposed with and connected to the transmission shaft.

[0014] Furthermore, a first end face gear is fixed to the end of the output shaft, and a second end face gear is provided on the transmission shaft, with the first end face gear and the second end face gear meshing with each other.

[0015] Furthermore, the filter assembly includes a filter frame with a filtration space formed on the filter frame. A fixed post is disposed in the filtration space, the rotating component is disposed in the filtration space, and a positioning groove is formed on the drive shaft, with the fixed post passing through the positioning groove.

[0016] Furthermore, the driving component is disposed above the transmission shaft, and the upper end face of the transmission shaft opposite to the positioning groove is recessed to form the second end face gear.

[0017] Furthermore, a receiving groove is formed on the fixed column, the driving member is fixed in the receiving groove, the output shaft of the driving member passes through the top wall of the receiving groove and is fixedly connected to the first end face gear, and the upper wall of the positioning groove is recessed to form the second end face gear.

[0018] Furthermore, a through hole is formed on the HEPA assembly, and the drive shaft is at least partially disposed within the through hole.

[0019] Furthermore, the self-cleaning filter device also includes a bearing, the inner ring of which is fitted onto the fixed post, and the outer ring of which abuts against the inner peripheral wall forming the positioning groove.

[0020] Furthermore, the self-cleaning filter device also includes a plurality of rollers rotatably connected to the fixed wall, the plurality of rollers being evenly spaced around the circumference of the fixed wall, and the rollers abutting against the inner peripheral wall constituting the filter space.

[0021] Furthermore, the filter frame is provided with a dust collection channel, which is located at the bottom of the filtration space and communicates with the filtration space.

[0022] Furthermore, the driving component is selected as a motor.

[0023] The present invention also provides a cleaning device, including the self-cleaning filter device described in any of the preceding claims.

[0024] Furthermore, the cleaning device includes a vacuum cleaner main unit and a base station that can be connected to each other. The vacuum cleaner main unit is equipped with the self-cleaning filter device and a first conductive plate that is electrically connected to the drive component. The base station is equipped with a power supply and a second conductive plate that is electrically connected to the power supply. When the vacuum cleaner main unit is connected to the base station, the first conductive plate and the second conductive plate contact and conduct electricity.

[0025] Compared with the prior art, the advantages of this invention are:

[0026] By installing a rotatable component between the HEPA filter assembly and the filter assembly, the tapping component on the rotating component can repeatedly tap and vibrate the HEPA paper of the HEPA filter assembly, shaking off the dust and debris. The scraping component can scrape the inner wall of the metal filter screen of the filter assembly, enabling the cleaning of the HEPA filter assembly and the filter assembly without manual disassembly. This completely eliminates the tedious operation of traditional manual disassembly and cleaning, greatly saving manpower and maintenance time, and effectively preventing secondary dust pollution caused by manual disassembly and cleaning. Attached Figure Description

[0027] Figure 1 This is a partial perspective sectional view of the cleaning equipment according to Embodiment 1 of the present invention;

[0028] Figure 2 This is a partial perspective sectional view of the cleaning equipment according to Embodiment 1 of the present invention under another state;

[0029] Figure 3 This is an exploded view of the self-cleaning filter device according to Embodiment 1 of the present invention;

[0030] Figure 4This is a schematic diagram of the rotating component according to Embodiment 1 of the present invention;

[0031] Figure 5 This is a structural schematic diagram of the rotating component according to another perspective of Embodiment 1 of the present invention;

[0032] Figure 6 This is a cross-sectional view of the self-cleaning filter device according to Embodiment 1 of the present invention;

[0033] Figure 7 for Figure 1 Enlarged view of section A in the middle;

[0034] Figure 8 This is a cross-sectional view of the cleaning equipment according to Embodiment 1 of the present invention from another perspective;

[0035] Figure 9 This is a cross-sectional view of the cleaning equipment according to Embodiment 2 of the present invention.

[0036] Explanation of reference numerals in the attached drawings: 1. Dust cup; 100. Cup lid; 101. Sealing gasket; 300. HEPA assembly; 301. HEPA paper; 302. Gap; 303. Through hole; 400. Rotating component; 401. Fixed wall; 402. First clearance hole; 403. Support bar; 4031. Slot; 404. Drive shaft; 404a. Second end face gear; 404b. Upper end face; 405. Positioning groove; 406. Connecting wall; 407. Second clearance hole; 450. Beating component; 460. Roller; 461. Rotating shaft; 462. Support ring; 463. Mounting groove; 464. Mounting hole; 470. Scraper component; 47 01. Snap-fit ​​part; 4702. Dust scraping part; 501. Drive component; 502. First conductive sheet; 503. Output shaft; 503a. First end face gear; 60. Filter assembly; 600. Filter frame; 601. Filter space; 602. Fixing column; 602a. Receiving groove; 603. Bearing; 604. Dust collection channel; 605. Metal filter; 606. Support rib; 606a. Gap; 607. Opening groove; 7. Vacuum cleaner main unit; 700. Vacuum cleaner motor; 701. Housing; 702. Mounting plate; 702a. Cable guide groove; 703. Mounting block; 704. Fixing groove; 705. Supporting column. Detailed Implementation

[0037] The following detailed, non-limiting description of the invention's technical solutions, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0038] Example 1

[0039] like Figures 1 to 8 As shown, Embodiment 1 of the present invention provides a self-cleaning filter device, which includes a HEPA filter assembly 300 and a filter assembly 60 sleeved outside the HEPA filter assembly 300. The HEPA filter assembly 300 includes HEPA paper 301 with multiple circumferential slits 302 formed on the HEPA paper 301. The filter assembly 60 includes a metal filter 605. After prolonged use, fine dust can become trapped in the slits 302 of the HEPA paper 301, affecting the dust collection effect; simultaneously, the metal filter 605 can also attract some dust due to static electricity, thus requiring regular cleaning of the HEPA paper 301 and the metal filter 605. In the prior art, the HEPA paper 301 and the metal filter 605 generally need to be disassembled and manually cleaned, which is not only cumbersome and time-consuming but also easily leads to secondary dust pollution. Based on this, the self-cleaning filter device in this embodiment also includes a rotating component 400, on which a tapping component 450 and a dust scraping component 470 are provided. It can clean the HEPA paper 301 and the metal filter screen 605 without disassembling the self-cleaning filter device. It is convenient and quick to use and the equipment is highly clean, eliminating the problem of secondary pollution caused by manual disassembly and cleaning.

[0040] Specifically, refer to Figures 1 to 8The self-cleaning filter device also includes a drive unit 501, and a rotating member 400 is at least partially disposed between the HEPA filter assembly 300 and the filter screen assembly 60. The rotating member 400 is equipped with a tapping member 450 and a scraping member 470. The drive unit 501 can drive the rotating member 400 to rotate, thereby enabling the tapping member 450 and the scraping member 470 on the rotating member 400 to clean the HEPA filter paper 301 of the HEPA filter assembly 300 and the metal filter screen 605 of the filter screen assembly 600, respectively. The entire process does not require disassembling the self-cleaning filter device, greatly simplifying equipment maintenance and improving user convenience. In this embodiment, the drive unit 501 is preferably a motor.

[0041] Furthermore, referring to Figures 3 to 7 The filter assembly 60 also includes a filter frame 600 for fixing the metal filter 605. A filtration space 601 is formed on the filter frame 600, and the aforementioned rotating component 400 and HEPA assembly 300 are at least partially disposed within the filtration space 601. Furthermore, a dust collection channel 604 is formed on the filter frame 600, located at the bottom of and communicating with the filtration space 601. Dust cleaned from the HEPA paper 301 and the metal filter 605 can be promptly discharged through the dust collection channel 604, effectively preventing secondary dust adsorption on the HEPA paper 301 or the metal filter 605 and ensuring cleaning effectiveness. The HEPA assembly 300 and the filter frame 600 are detachably connected by a rotating snap-fit ​​mechanism, which is existing mature technology and will not be elaborated further in this application.

[0042] Continue to refer to Figures 3 to 8 The rotating component 400 includes a fixed wall 401 disposed between the HEPA assembly 300 and the filter assembly 60. The aforementioned tapping component 450 and scraping component 470 are both disposed on the fixed wall 401. Specifically, the side of the fixed wall 401 facing the HEPA assembly 300 is fixedly connected to the tapping component 450, and the side of the fixed wall 401 facing the filter assembly 60 is fixedly connected to the scraping component 470. The tapping component 450 is at least partially inserted into the gap 302 of the HEPA paper 301, and the scraping component 470 abuts against the metal filter 605. Thus, as the rotating component 400 synchronously drives the tapping component 450 and the scraping component 470 to rotate, the tapping component 450 repeatedly taps and vibrates the HEPA paper 301, shaking off the dust on the HEPA paper 301 to complete the cleaning of the HEPA paper 301; the scraping component 470 scrapes the inner wall of the metal filter 605 to complete the cleaning of the inner wall of the metal filter 605.

[0043] Preferably, the number of tapping components 450 and scraping components 470 is set to multiple, and the multiple tapping components 450 are evenly spaced around the circumference of the HEPA filter assembly 300, and the multiple scraping components 470 are also evenly spaced around the circumference of the HEPA filter assembly 300. This structural arrangement allows the multiple tapping components 450 to tap the HEPA filter paper 301 multiple times simultaneously as the rotating component 400 rotates once; the multiple scraping components 470 simultaneously scrape the inner wall of the metal filter screen 605, which greatly improves the cleaning efficiency, while ensuring that the rotating component 400 is subjected to uniform and stable force, effectively reducing equipment vibration and abnormal noise problems, and improving the overall operating stability of the equipment.

[0044] To prevent the fixed wall 401 of the rotating component 400 from obstructing airflow and thus affecting the filtration effect of the self-cleaning filter, in this embodiment, the fixed wall 401 is provided with multiple first clearance holes 402 around the circumference to allow airflow. This effectively prevents the rotating component 400 from obstructing the suction airflow while ensuring the normal functioning of the rotating component 400 in installing and fixing the beater 450 and the dust scraper 470. Furthermore, a support strip 403 is formed between adjacent first clearance holes 402. The beater 450 is integrally formed on the support strip 403 and is triangular in shape, with its protruding tip extending and inserting into the gap 302 of the HEPA assembly 300. Preferably, the protruding tip of the beater 450 is rounded to avoid scratching the HEPA paper 301. The triangular structure has high strength and good stability. In other alternative embodiments, the beater 450 can also be configured as, for example, a long strip or a cylinder. In addition, the one-piece molded fixed structure has high strength and good stability, which can prevent the 450 striking part from falling off after long-term vibration, ensuring the reliability of long-term high-frequency striking operation. It also has a high degree of structural integration and is easy to assemble.

[0045] Furthermore, the metal filter 605 is typically integrally formed and fixed with the filter frame 600 as an insert, and is disposed on the outer peripheral surface of the filter frame 600. The filter frame 600 has a hollow structure to facilitate the filtering function of the metal filter 605. To avoid interference between the scraper 470 and the part of the filter frame 600 that protrudes from the metal filter 605, the scraper 470 is preferably made of silicone. This avoids damage to the metal filter 605 and allows the scraper 470 to deform and bypass the structure when it comes into contact with the filter frame 600.

[0046] Furthermore, referring to Figure 5In this embodiment, the scraper 470 is integrally formed and includes a snap-fit ​​portion 4701 and a scraper portion 4702 connected to each other. A groove 4031 is formed on the side of the support strip 403 opposite to the tapping member 450. The snap-fit ​​portion 4701 snaps into the groove 4031, and the scraper portion 4702 abuts against the metal filter screen 605 of the filter assembly 60. It is worth noting that both the snap-fit ​​portion 4701 and the groove 4031 have T-shaped cross-sections, which prevents the scraper 470 from being thrown out during the rotation of the rotating member 400. In another alternative embodiment, other methods can be used, such as adhesive bonding, to fix the scraper 470 to the support strip 403. In yet another alternative embodiment, the scraper portion 4702 can be configured as a brush composed of several soft bristles, and the brush can be integrally injection molded and fixed to the snap-fit ​​portion 4701 as an insert, or directly integrally injection molded and fixed to the support strip 403.

[0047] Continue to refer to Figures 3 to 7 The rotating component 400 also includes a drive shaft 404 fixedly connected to the fixed wall 401, and the drive shaft 404 is disposed on the central axis of the fixed wall 401. The driving component 501 is disposed above the drive shaft 404, and the output shaft 503 of the driving component 501 is coaxially disposed and connected to the drive shaft 404. This coaxial arrangement of the output shaft 503 of the driving component 501 and the drive shaft 404 results in high transmission accuracy and low power loss, ensuring stable transmission of driving power to the rotating component 400, guaranteeing uniform and smooth rotation of the rotating component 400, and ensuring the uniformity of the tapping cleaning.

[0048] Preferably, refer to Figure 4 and Figure 5 The rotating component 400 is integrally formed and also includes a connecting wall 406. The outer edge of the connecting wall 406 is connected to the fixed wall 401. The center of the connecting wall 406 protrudes upward to form the aforementioned drive shaft 404, serving to connect the fixed wall 401 and the drive shaft 404. Simultaneously, multiple second clearance holes 407 are formed on the connecting wall 406, allowing dust shaken off the HEPA paper 301 to fall through the second clearance holes 407 to the outside of the rotating component 400, preventing dust accumulation and ensuring effective cleaning.

[0049] Key reference Figure 4 , Figure 6 and Figure 7In this embodiment, a positioning groove 405 is formed on the transmission shaft 404, and a first end face gear 503a is fixed on the output shaft 503 of the drive member 501. A second end face gear 404a is formed by a recess on the upper end face 404b of the transmission shaft 404 away from the positioning groove 405. The first end face gear 503a and the second end face gear 404a mesh with each other. The transmission method of end face gear meshing has a compact structure, large transmission torque, and can be adapted to cleaning operation scenarios with high frequency start and stop. It has strong transmission stability, is not prone to slippage or tooth disengagement, and ensures continuous and reliable operation of the self-cleaning action.

[0050] Continue to refer to Figure 6 and Figure 7 A fixing post 602 is provided within the filtration space 601 of the filter frame 600, and the fixing post 602 passes through the positioning groove 405. Preferably, multiple bearings 603 are sleeved on the fixing post 602, with the inner ring of the bearing 603 sleeved on the fixing post 602 and the outer ring abutting against the inner peripheral wall forming the positioning groove 405. The cooperation of the fixing post 602, bearings 603, and positioning groove 405 achieves the positioning support of the drive shaft 404, effectively reducing the radial sway of the rotating part 400 during rotation and ensuring the stability and accuracy of the rotation of the rotating part 400.

[0051] Reference Figure 1 , Figure 2 and Figure 6 The aforementioned fixed column 602 is formed directly above the dust collection channel 604. In detail, a plurality of support ribs 606 are formed on the inner wall constituting the filter space 601 to connect and support the fixed column 602, and there is a gap 606a between adjacent support ribs 606 to avoid affecting the dust falling into the dust collection channel 604.

[0052] In addition, combined Figure 5 and Figure 6 The self-cleaning filter device also includes multiple rollers 460 rotatably connected to the fixed wall 401. The rollers 460 are evenly spaced around the circumference of the fixed wall 401, and abut against the inner peripheral wall constituting the filter space 601. Specifically, a support ring 462 is formed on the side of the fixed wall 401 opposite to the HEPA assembly 300. The support ring 462 has multiple mounting grooves 463 corresponding one-to-one with the rollers 460. Through mounting holes 464 are formed on the upper and lower walls constituting the mounting grooves 463. A rotatable shaft 461 is provided at the center of the roller 460. The two ends of the shaft 461 are interference-fitted into the mounting holes 464, so that the roller 460 is rotatably mounted in the mounting groove 463 and partially protrudes from the support ring 462. The protruding part abuts against the inner peripheral wall of the filter space 601, thereby enabling the multiple rollers 460 to provide auxiliary support for the rotating component 400, further reducing the radial runout of the rotating component 400 during rotation and improving the smoothness and stability of the rotating component 400 during rotation.

[0053] Preferably, combined with Figure 3 and Figure 6 The HEPA module 300 has a through hole 303, and the drive shaft 404 and the fixing column 602 are both set in the through hole 303. The central space of the HEPA module 300 is fully utilized to accommodate and install the drive shaft 404 and the fixing column 602. The overall structure has a high degree of integration and a regular layout, which effectively reduces the overall size of the equipment and realizes the miniaturization design of the equipment.

[0054] Furthermore, referring to Figure 1 , Figure 2 and Figure 7 Embodiment 1 of the present invention also provides a cleaning device, which includes the aforementioned self-cleaning filter. Specifically, the cleaning device is a vacuum cleaner, which includes a vacuum cleaner main unit 7, on which the aforementioned self-cleaning filter is disposed. The vacuum cleaner main unit 7 includes a housing 701 and a dust cup 1, which is fixed to and communicates with the housing 701. The aforementioned self-cleaning filter is disposed inside the dust cup 1, and a vacuum motor 700 is disposed inside the housing 701, with the vacuum motor 700 positioned directly opposite the self-cleaning filter inside the dust cup 1. The fixing method of the vacuum motor 700 is a well-established existing technology and will not be described in detail. In this embodiment, in order to fix the aforementioned drive component 501, a mounting plate 702 is fixedly disposed on the housing 701. The mounting plate 702 is fixedly connected to the housing 701, preferably by bolts, but it can also be snap-fitted or integrally formed. Mounting plate 702 is disposed between vacuum motor 700 and HEPA assembly 300, and mounting block 703 protrudes from the side of mounting plate 702 facing HEPA assembly 300. Mounting block 703 has a fixing groove 704 formed on it. Drive member 501 is interference-fitted into fixing groove 704 for installation. At the same time, the upper end of drive member 501 abuts against vacuum motor 700 to prevent drive member 501 from dislodging from fixing groove 704 due to vibration or other reasons. The output shaft 503 of drive member 501 passes through the bottom wall of fixing groove 704 and is fixed to first end face gear 503a.

[0055] Preferably, the mounting block 703 and the drive component 501 extend at least partially into the through hole 303 in the axial direction of the HEPA assembly 300, further improving the overall compactness of the machine. Meanwhile, it is understood that the mounting plate 702 is preferably perforated to avoid obstructing airflow between the HEPA assembly 300 and the vacuum motor 700, thus preventing any impact on suction performance. Alternatively, it could be a long strip or other shape that does not completely obstruct the flow between the HEPA assembly 300 and the vacuum motor 700. The mounting plate 702 also has a cable channel 702a for threading the cable of the drive component 501, facilitating cable routing.

[0056] Combination Figure 1 and Figure 2The dust cup 1 has an openable and closable cup lid 100, and a sealing gasket 101 is provided on the cup lid 100 at the position corresponding to the dust collection channel 604. When the vacuum cleaner main unit 7 is used independently, the cup lid 100 is in the closed state, and the sealing gasket 101 abuts against the end of the dust collection channel 604 and blocks the dust collection channel 604 to avoid affecting the dust collection effect.

[0057] Combination Figure 2 When the vacuum cleaner main unit 7 needs to be cleaned, the cup lid 100 is in the open state. At this time, both the dust cup 1 and the dust collection channel 604 are open, and the dust in the dust cup 1 can be cleaned out. At the same time, the dust shaken off from the HEPA paper 301 can pass through the gap between the second clearance hole 407 and the adjacent support rib 606 and enter the dust collection channel 604. The dust scraped off from the metal filter 605 will also enter the dust collection channel 604 and finally be discharged from the dust collection channel 604.

[0058] It is worth noting that the vacuum cleaner device provided in this embodiment also includes a base station (not shown in the figure) that can be used with the vacuum cleaner main unit 7. See attached reference. Figure 7 The housing 701 is also provided with a first conductive plate 502 that is electrically connected to the drive unit 501 via a wire. The base station is provided with a power supply (not shown) and a second conductive plate (not shown) that is electrically connected to the power supply. When the vacuum cleaner main unit 7 is placed on the base station, the first conductive plate 502 contacts and conducts electricity with the second conductive plate. At this time, the drive unit 501 can be started and drive the rotating part 400 to rotate, thereby cleaning the HEPA assembly 300 and the filter assembly 60.

[0059] Specifically, the cleaning process of the cleaning equipment and its self-cleaning filter device provided in this embodiment to clean the HEPA module 300 and the filter screen module 60 is as follows:

[0060] When the vacuum cleaner main unit 7 is connected to the base station, the lid 100 of the dust cup 1 rotates to the open state under the action of the trigger on the base station. At the same time, the first conductive plate 502 contacts and conducts electricity with the second conductive plate, and the power supply in the base station supplies power to the drive unit 501. The vacuum cleaner main unit 7 is equipped with a self-cleaning start button and a controller electrically connected to the drive unit 501, the vacuum motor 700, and the self-cleaning start button. When the user presses the self-cleaning start button, the controller instructs the vacuum motor 700 to reverse, generating airflow to blow the dust in the dust cup 1 into the dust collection bag of the base station, realizing the automatic cleaning of the dust cup 1.

[0061] Simultaneously, the controller instructs the drive unit 501 to start and drive the rotating unit 400 to rotate, which in turn drives the tapping unit 450 and the dust scraping unit 470 on the rotating unit 400 to rotate. During the rotation of the rotating unit 400, the tapping unit 450 repeatedly taps and vibrates the HEPA paper 301, shaking off the dust on the HEPA paper 301; the dust scraping unit 470 scrapes the inner wall of the metal filter 605 to remove the dust from the inner wall of the metal filter 605, thus cleaning the HEPA assembly 300 and the filter assembly 60. At the same time, the fallen dust can be quickly discharged from the dust collection channel 604 to the dust collection bag of the base station under the propulsion of the airflow, so that the dust cleaned from the self-cleaning filter device can be collected by the base station together, further improving the cleaning effect. The controller has a preset cleaning time. After the actual cleaning time reaches the preset cleaning time, the controller instructs the vacuum cleaner motor 700 and the drive unit 501 to stop working. At this time, the user can remove the vacuum cleaner main unit 7 from the base station for reuse.

[0062] It is understood that the vacuum cleaner main unit 7 also has a power supply, and in other alternative embodiments, the drive unit 501 can also be electrically connected to the power supply on the vacuum cleaner main unit 7. In this embodiment, placing the power supply on the base station can prevent the drive unit 501 from being accidentally activated when the vacuum cleaner main unit 7 is not placed on the base station; at the same time, this setting means that the power supply on the vacuum cleaner main unit 7 does not need to supply power to the drive unit 501, thereby improving the battery life of the vacuum cleaner main unit 7.

[0063] Example 2

[0064] This embodiment provides a self-cleaning filter device and a cleaning device having the self-cleaning filter device. Compared to Embodiment 1, the installation position of the drive component 501 is adaptively adjusted in this embodiment, allowing the user to set it according to actual needs. See details for further information. Figure 9 In this embodiment, a receiving groove 602a is formed on the fixing post 602 on the filter frame 600. The driving member 501 is snapped and fixed in the receiving groove 602a. The output shaft 503 of the driving member 501 passes through the top wall of the receiving groove 602a and is fixedly connected to the first end face gear 503a. The upper wall of the positioning groove 405 is recessed to form the second end face gear 404a.

[0065] Furthermore, a support column 705 protrudes from the side of the mounting plate 702 facing the drive shaft 404, and a bearing 603 is also fitted at the end of the support column 705. An opening groove 607 is formed on the upper end surface of the drive shaft 404, and the outer ring of the bearing 603 fitted at the end of the support column 705 is engaged with the opening groove 607, so that the support column 705 can provide positioning support for the rotating part 400, reduce the radial runout of the rotating part 400 during rotation, and improve the operational stability of the equipment.

[0066] The cleaning equipment and self-cleaning filter device provided in this application have a rotatable rotating component 400 between the HEPA assembly 300 and the filter assembly 60. The striking component 450 on the rotating component 400 can repeatedly strike and vibrate the HEPA paper 301 of the HEPA assembly 300, shaking off the dust on the HEPA paper 301. The scraping component 470 can scrape the inner wall of the metal filter screen 605 of the filter assembly 60. This allows the cleaning of the HEPA assembly 300 and the filter assembly 60 to be completed without manual disassembly. It completely eliminates the tedious operation of traditional manual disassembly and cleaning, greatly saves manpower and maintenance time, and effectively prevents secondary dust pollution caused by manual disassembly and cleaning.

[0067] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A self-cleaning filtration device, comprising a HEPA filter assembly (300) and a filter screen assembly (60) sleeved outside the HEPA filter assembly (300), characterized in that, The self-cleaning filter device also includes: A rotating component (400) is at least partially disposed between the HEPA assembly (300) and the filter assembly (60), and the rotating component (400) is provided with a beater (450) and a scraper (470). A drive unit (501) is configured to drive the rotating member (400) to rotate and simultaneously drive the tapping member (450) and the scraping member (470) to rotate, so as to clean the HEPA assembly (300) and the filter assembly (60) respectively.

2. The self-cleaning filter device according to claim 1, characterized in that, The rotating component (400) includes a fixed wall (401) disposed between the HEPA assembly (300) and the filter assembly (60), the fixed wall (401) being fixedly connected to the beater (450) on the side facing the HEPA assembly (300), and the fixed wall (401) being fixedly connected to the scraper (470) on the side facing the filter assembly (60).

3. The self-cleaning filter device according to claim 2, characterized in that, The fixed wall (401) has a plurality of first clearance holes (402) for airflow in a circumferential direction. A support strip (403) is formed between adjacent first clearance holes (402). The patting member (450) and the scraping member (470) are both fixedly connected to the support strip (403).

4. The self-cleaning filter device according to claim 3, characterized in that, The striking element (450) is integrally formed with the support strip (403), and the striking element (450) extends at least partially into the gap (302) of the HEPA assembly (300).

5. The self-cleaning filter device according to claim 3, characterized in that, The scraper (470) includes a snap-fit ​​part (4701) and a scraper part (4702) connected to each other. A groove (4031) is formed on the support strip (403). The snap-fit ​​part (4701) snaps into the groove (4031). The scraper part (4702) abuts against the metal filter screen (605) of the filter assembly (60).

6. The self-cleaning filter device according to claim 2, characterized in that, The rotating component (400) includes a transmission shaft (404) fixedly connected to the fixed wall (401). The transmission shaft (404) is arranged on the central axis of the fixed wall (401). The output shaft (503) of the driving component (501) is coaxially arranged with the transmission shaft (404) and is connected in transmission. Preferably, a first end face gear (503a) is fixed to the end of the output shaft (503), and a second end face gear (404a) is provided on the transmission shaft (404), wherein the first end face gear (503a) and the second end face gear (404a) mesh with each other. Preferably, the filter assembly (60) includes a filter frame (600), a filter space (601) is formed on the filter frame (600), a fixed post (602) is provided in the filter space (601), the rotating part (400) is provided in the filter space (601), and a positioning groove (405) is formed on the drive shaft (404), and the fixed post (602) passes through the positioning groove (405). Preferably, the HEPA assembly (300) has a through hole (303) formed therethrough, and the drive shaft (404) is at least partially disposed within the through hole (303). Preferably, the self-cleaning filter device further includes a plurality of rollers (460) rotatably connected to the fixed wall (401), the plurality of rollers (460) being evenly spaced around the fixed wall (401) in the circumference, and the rollers (460) abutting against the inner peripheral wall constituting the filter space (601). Preferably, the filter frame (600) is provided with a dust collection channel (604), which is located at the bottom of the filter space (601) and communicates with the filter space (601). Preferably, the driving component (501) is a motor.

7. The self-cleaning filter device according to claim 6, characterized in that, The drive member (501) is disposed above the transmission shaft (404), and the upper end face (404b) of the transmission shaft (404) opposite to the positioning groove (405) is recessed to form the second end face gear (404a).

8. The self-cleaning filter device according to claim 6, characterized in that, A receiving groove (602a) is formed on the fixed column (602). The driving member (501) is fixed in the receiving groove (602a). The output shaft (503) of the driving member (501) passes through the top wall of the receiving groove (602a) and is fixedly connected to the first end face gear (503a). The upper wall of the positioning groove (405) is recessed to form the second end face gear (404a).

9. The self-cleaning filter device according to claim 6, characterized in that, The self-cleaning filter device also includes a bearing (603), the inner ring of which is fitted on the fixed column (602), and the outer ring of which abuts against the inner peripheral wall that forms the positioning groove (405).

10. A cleaning device, characterized in that, Includes the self-cleaning filter device as described in any one of claims 1-9. Preferably, the cleaning device includes a vacuum cleaner main unit (7) and a base station that can be connected to each other. The vacuum cleaner main unit (7) is provided with the self-cleaning filter device. The vacuum cleaner main unit (7) is also provided with a first conductive plate (502) that is electrically connected to the drive unit (501). The base station is provided with a power supply and a second conductive plate that is electrically connected to the power supply. When the vacuum cleaner main unit (7) is connected to the base station, the first conductive plate (502) and the second conductive plate are in contact and connected.

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