A filter cleaning device for an air purifier
By incorporating a filter cleaning mechanism and a dust collection mechanism within the air purifier, and employing ultrasonic vibration and negative pressure dust collection technology, automated filter cleaning is achieved. This solves the problem of low efficiency in manual filter cleaning in existing technologies, improving cleaning efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN CITY COOLTURE ELECTRICAL APPLIANCE IND
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-16
AI Technical Summary
Cleaning existing air purifier filters requires manual disassembly and washing, which is labor-intensive and inefficient, and cannot meet actual needs.
The purifier is equipped with a filter cleaning mechanism and a dust collection mechanism, including a reciprocating movement mechanism, a cleaning head assembly, and a dust collection mechanism. It achieves automated dust removal through ultrasonic vibration cleaning and negative pressure suction, and the dust collection box can be quickly replaced.
It achieves automated dust removal from the filter element, improves cleaning efficiency, reduces manual operation, extends the service life of the cleaning head assembly, and is convenient and quick to operate.
Smart Images

Figure CN224358179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purifier technology, and in particular to a filter cleaning device for an air purifier. Background Technology
[0002] After prolonged use, the filter of an air purifier accumulates a large amount of dust. Current technology typically involves disassembling the purifier casing to remove the filter for manual cleaning. However, manual cleaning of the filter is labor-intensive, inefficient, and impractical, failing to meet the needs of actual use.
[0003] Therefore, in order to solve the above problems, it is necessary to develop a filter cleaning device for air purifiers. By setting a filter cleaning mechanism and a dust collection mechanism on the air intake side of the filter in the purifier, the dust on the filter can be removed and collected. The process does not require manual operation, is practical and has high cleaning efficiency. Utility Model Content
[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0005] An air purifier filter cleaning device includes a housing, a filter cleaning mechanism, and a dust collection mechanism, characterized in that:
[0006] The housing is divided into a filtration chamber and a cleaning chamber from front to back by a filter element, and a removable air inlet grille is provided at the air inlet on the back of the housing.
[0007] Below the filter chamber is an installation cavity that communicates with the cleaning chamber;
[0008] The filter element cleaning mechanism is disposed inside the filter chamber and includes a reciprocating moving mechanism, a moving plate, a connecting seat, and a cleaning head assembly.
[0009] The reciprocating moving mechanism is located on the left and right sides of the filter element and is used to drive the moving plate to move up and down;
[0010] The movable plate is provided with a connecting seat and multiple cleaning head assemblies in sequence towards the filter element;
[0011] The connecting seat and the movable plate can be detachably connected without tools;
[0012] The cleaning head assembly includes a vibrating plate and a brush plate. The brush plate is connected to the connecting seat through the vibrating plate, and the cleaning end of the brush plate is in close contact with the air inlet side of the filter element.
[0013] The dust collection mechanism is located inside the installation cavity and is used to collect dust generated during cleaning.
[0014] Preferably, the vibrating plate is a piezoelectric ceramic vibrating plate.
[0015] Preferably, the dust collection mechanism includes a drawer, a dust hood, an exhaust fan, and a dust collection box;
[0016] The drawer is located inside the mounting cavity, and the drawer is equipped with an exhaust fan and a dust collection box;
[0017] The dust collection box is detachably connected to the drawer via Velcro. The air inlet of the dust collection box is connected to the dust collection hood via a pipe, and the air outlet is connected to the exhaust fan via a pipe.
[0018] The dust collection box is equipped with a filter screen at the air outlet to prevent dust from entering the exhaust fan.
[0019] The dust hood is connected to the connector, and the hood opening faces the filter element.
[0020] Preferably, the left and right sides of the movable plate are provided with mounting grooves facing each other, and the surface of the mounting grooves is provided with toothed segments.
[0021] The two ends of the connector are provided with racks facing each other, and the end of the rack away from the connector is a free end;
[0022] When the movable plate is connected to the connecting seat, the rack is located in the assembly groove and the rack is engaged with the tooth segment.
[0023] Preferably, the dust collection mechanism further includes at least one auxiliary dust collection component disposed on the outside of the filter element;
[0024] The auxiliary dust collection component is a hollow structure with a dust collection port on the side and the rest of the surface continuously closed. The auxiliary dust collection component extends from the top end to the bottom end of the filter element.
[0025] The auxiliary dust collection device is connected to the air inlet of the dust collection box via a pipe.
[0026] Preferably, the cleaning chamber is equipped with an infrared sensor for detecting the amount of dust in the filter element;
[0027] The infrared sensor is electrically connected to the filter cleaning mechanism and the dust collection mechanism.
[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0029] 1. By setting up a filter cleaning mechanism and a dust collection mechanism on the air inlet side of the filter in the purifier, the dust in the filter can be removed and collected. The process does not require manual operation, is practical and has high cleaning efficiency.
[0030] 2. The ultrasonic vibration cleaning method improves cleaning efficiency while reducing brush bristle wear and extending the service life of the cleaning head assembly.
[0031] 3. Enables tool-free quick assembly and disassembly of the cleaning head assembly, improving practicality.
[0032] 4. By placing the dust collection box and exhaust fan inside a pull-out drawer, when the dust collection box is too full, first remove the air inlet grille with external force, then pull out the drawer with external force to remove the dust collection box and clean the dust inside. The process is convenient and quick. Attached Figure Description
[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0034] Figure 2 This is an exploded view of the present invention;
[0035] Figure 3 This is the front view of the present invention;
[0036] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle AA section;
[0037] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB section;
[0038] Figure 6 for Figure 5 Enlarged view of a portion of point D;
[0039] The components include: outer shell 1, filter cleaning mechanism 2, dust collection mechanism 3, air inlet grille 4, reciprocating moving mechanism 21, moving plate 22, connecting seat 23, cleaning head assembly 24, drawer 31, dust hood 32, exhaust fan 33, dust collection box 34, auxiliary dust collection parts 35, assembly slot 221, rack 231, vibrating plate 241, brush plate 242, filter element 10, filter chamber 20, cleaning chamber 30, mounting chamber 40, and toothed section 221a. Detailed Implementation
[0040] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0041] It should be noted that when a component is said to be "fixed" to another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and similar expressions used in this document are for illustrative purposes only.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0043] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:
[0044] like Figures 1-6 As shown, an air purifier filter cleaning device includes a housing 1, a filter cleaning mechanism 2 and a dust collection mechanism 3. The housing 1 is divided into a filtration chamber 20 and a cleaning chamber 30 from front to back by a filter element 10. A detachable air inlet grille 4 is provided at the air inlet on the back of the housing 1.
[0045] Below the filter chamber 20, there is an installation cavity 40 that communicates with the cleaning cavity 30;
[0046] The filter element cleaning mechanism 2 is disposed in the filter chamber 20. The filter element cleaning mechanism 2 includes a reciprocating moving mechanism 21, a moving plate 22, a connecting seat 23, and a cleaning head assembly 24.
[0047] The reciprocating moving mechanism 21 is located on the left and right sides of the filter element 10 and is used to drive the moving plate 22 to move up and down.
[0048] The movable plate 22 is provided with a connecting seat 23 and a plurality of cleaning head assemblies 24 in sequence toward the filter element 10;
[0049] The connecting seat 23 and the movable plate 22 can be detachably connected without tools;
[0050] The cleaning head assembly 24 includes a vibrating plate 241 and a brush plate 242. The brush plate 242 is connected to the connecting seat 23 through the vibrating plate 241, and the cleaning end of the brush plate 242 is in close contact with the air inlet side of the filter element 10.
[0051] The dust collection mechanism 3 is located inside the mounting cavity 40 and is used to collect dust generated during cleaning.
[0052] In this embodiment, the filter cleaning mechanism 2 and the dust collection mechanism 3 are built into the structure, which improves the aesthetics of the purifier and avoids damage to the filter cleaning mechanism 2 and the dust collection mechanism 3. Moreover, the filter cleaning mechanism 2 and the dust collection mechanism 3 can be quickly and easily disassembled and repaired through the detachable air inlet grille 4.
[0053] In this embodiment, the filter element 10 is cleaned by using a vibrating brush head composed of multiple vibrating plates 241 and bristle discs 242. Compared with the existing rotating brush head structure, the ultrasonic vibration cleaning method improves cleaning efficiency while reducing bristle wear and extending the service life of the cleaning head assembly 24.
[0054] In this embodiment, the tool-free detachable connection between the connector 23 and the movable plate 22 improves the ease of assembly and disassembly of the cleaning head assembly 24.
[0055] Furthermore, in order to improve the reliability and stability of vibration cleaning, the vibrating plate 241 is a piezoelectric ceramic vibrating plate.
[0056] Furthermore, such as Figure 4 , 5 As shown, the dust collection mechanism 3 includes a drawer 31, a dust collection hood 32, an exhaust fan 33, and a dust collection box 34;
[0057] The drawer 31 is disposed in the mounting cavity 40, and the drawer 31 is provided with an exhaust fan 33 and a dust collection box 34.
[0058] The dust collection box 34 is detachably connected to the drawer 31 via Velcro. The air inlet of the dust collection box 34 is connected to the dust collection hood 32 via a pipe, and the air outlet is connected to the exhaust fan 33 via a pipe.
[0059] The dust collection box 34 is equipped with a filter screen (not shown in the figure) at the air outlet to prevent dust from entering the exhaust fan 33;
[0060] The dust cover 32 is connected to the connecting seat 23, and the opening of the cover faces the filter element 10.
[0061] In this embodiment, when cleaning the filter element 10, the vibrating plate 241 is energized and vibrates at a frequency of 20-40kHz (ultrasonic range), loosening the dust through vibration; the reciprocating moving mechanism 21 drives the moving plate 22 to move the cleaning head assembly 24; at the same time, the exhaust fan 33 is energized and started, creating a negative pressure at the opening of the dust suction hood 32, thereby concentrating the suction of the loosened dust on the filter element 10 and storing the dust in the dust collection box 34, thus achieving dust removal and collection of the filter element 10.
[0062] In this embodiment, by placing the dust collection box 34 and the exhaust fan 33 inside the pull-out drawer 31, when the dust collection box 34 is too full, the air inlet grille 4 is first removed by external force, and then the drawer 31 is pulled out by external force to remove the dust collection box 34 and clean the dust inside. The process is convenient and quick.
[0063] In this embodiment, the air inlet and outlet of the dust collection box 34 are provided with quick-connect couplings that can be connected to the pipeline without tools, so that the dust collection box 34 can be quickly separated from the pipeline when it is taken out; the working principle and structure of the quick-connect couplings are conventional technologies in the field and will not be described in detail here.
[0064] Furthermore, such as Figure 5 , 6 As shown, the left and right sides of the movable plate 22 are provided with mounting grooves 221 facing each other, and the surface of the mounting grooves 221 is provided with tooth segments 221a.
[0065] The two ends of the connecting seat 23 are provided with racks 231 facing each other, and the end of the rack 231 away from the connecting seat 23 is a free end;
[0066] When the movable plate 22 is connected to the connecting seat 23, the rack 231 is located in the assembly groove 221, and the rack 231 is engaged with the tooth segment 221a.
[0067] In this embodiment, when the connecting seat 23 is connected to the moving plate 22, the connecting seat 23 is placed between the moving plate 22 and the filter element 10, and the rack 231 corresponds to the assembly groove 221; then the external force drives the connecting seat 23 to move closer to the moving plate 22; at this time, the rack 231 is stretched outward under the influence of the external force, and after the connecting seat 23 is in place, the rack 231 is stressed and meshes with the tooth segment 221a, thereby achieving a fixed connection;
[0068] When it is necessary to disassemble the connecting seat 23, the free end of the rack 231 is driven by external force to disengage the rack 231 from the tooth section 221a, and then the connecting seat 23 is driven away from the moving plate 22; thus, the connecting plate and the connecting seat 23 can be quickly disassembled and assembled without tools.
[0069] Furthermore, such as Figure 4 , 5 As shown, in order to improve the dust collection effect generated during cleaning, the dust collection mechanism 3 also includes at least one auxiliary dust collection component 35 disposed on the outside of the filter element 10;
[0070] The auxiliary dust collection component 35 is a hollow structure with a dust collection port on the side and the rest of the surface continuously closed. The auxiliary dust collection component 35 extends from the upper end to the lower end of the filter element 10.
[0071] The auxiliary dust collection component 35 is connected to the air inlet of the dust collection box 34 via a pipe.
[0072] Furthermore, to enhance intelligence and enable automatic cleaning of the filter element 10, an infrared sensor (not shown in the figure) for detecting the amount of dust in the filter element 10 is installed in the cleaning chamber 30; the infrared sensor is electrically connected to the filter element cleaning mechanism 2 and the dust collection mechanism 3.
[0073] In this embodiment, the purifier automatically stops working when cleaning filter 10.
[0074] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.
Claims
1. A filter cleaning device for an air purifier, comprising a housing, a filter cleaning mechanism, and a dust collection mechanism, characterized in that: The housing is divided into a filtration chamber and a cleaning chamber from front to back by a filter element, and a removable air inlet grille is provided at the air inlet on the back of the housing. Below the filter chamber is an installation cavity that communicates with the cleaning chamber; The filter element cleaning mechanism is disposed inside the filter chamber and includes a reciprocating moving mechanism, a moving plate, a connecting seat, and a cleaning head assembly. The reciprocating moving mechanism is located on the left and right sides of the filter element and is used to drive the moving plate to move up and down; The movable plate is provided with a connecting seat and multiple cleaning head assemblies in sequence towards the filter element; The connecting seat and the movable plate can be detachably connected without tools; The cleaning head assembly includes a vibrating plate and a brush plate. The brush plate is connected to the connecting seat through the vibrating plate, and the cleaning end of the brush plate is in close contact with the air inlet side of the filter element. The dust collection mechanism is located inside the installation cavity and is used to collect dust generated during cleaning.
2. The filter cleaning device for an air purifier according to claim 1, characterized in that, The vibrating plate is a piezoelectric ceramic vibrating plate.
3. The filter cleaning device for an air purifier according to claim 1, characterized in that, The dust collection mechanism includes a drawer, a dust hood, an exhaust fan, and a dust collection box; The drawer is located inside the mounting cavity, and the drawer is equipped with an exhaust fan and a dust collection box; The dust collection box is detachably connected to the drawer via Velcro. The air inlet of the dust collection box is connected to the dust collection hood via a pipe, and the air outlet is connected to the exhaust fan via a pipe. The dust collection box is equipped with a filter screen at the air outlet to prevent dust from entering the exhaust fan. The dust hood is connected to the connector, and the hood opening faces the filter element.
4. The filter cleaning device for an air purifier according to claim 1, characterized in that, The left and right sides of the movable plate are provided with assembly grooves, and the surface of the assembly grooves is provided with toothed segments. The two ends of the connector are provided with racks facing each other, and the end of the rack away from the connector is a free end; When the movable plate is connected to the connecting seat, the rack is located in the assembly groove and the rack is engaged with the tooth segment.
5. The filter cleaning device for an air purifier according to claim 3, characterized in that, The dust collection mechanism also includes at least one auxiliary dust collection component disposed on the outside of the filter element; The auxiliary dust collection component is a hollow structure with a dust collection port on the side and the rest of the surface continuously closed. The auxiliary dust collection component extends from the top end to the bottom end of the filter element. The auxiliary dust collection device is connected to the air inlet of the dust collection box via a pipe.
6. The filter cleaning device for an air purifier according to claim 1, characterized in that, An infrared sensor for detecting the amount of dust in the filter element is installed inside the cleaning chamber. The infrared sensor is electrically connected to the filter cleaning mechanism and the dust collection mechanism.