Filter cleaning assembly and purifier

Abstract

The present application relates to the technical field of air purification apparatuses. Disclosed are a filter cleaning assembly and a purifier. The filter cleaning assembly comprises a drive module and a cleaning module, wherein the cleaning module is in transmission connection with the drive module and is configured to be arranged on the outer peripheral side or inner peripheral side of a filter, so as to come into contact with a dust collection surface of the filter; and the drive module drives the cleaning module to move back and forth along the outer peripheral side or inner peripheral side of the filter, thereby scraping the dust collection surface.

Description

Filter cleaning components and air purifier

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202423211310.6, filed on December 24, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of air purification equipment technology, and in particular to a filter cleaning component and purifier. Background Technology

[0004] An air purifier is a product that can adsorb, decompose, or transform various air pollutants, effectively improving air cleanliness. The filter is the component in the purifier used to adsorb air pollutants and needs to be replaced regularly to ensure effective air purification. However, frequent filter replacements increase the user's workload. Summary of the Invention

[0005] The main purpose of this application is to provide a filter cleaning component and purifier, which aims to reduce the frequency of filter replacement and thus reduce the workload of users.

[0006] To achieve the above objectives, this application proposes a filter cleaning assembly, comprising:

[0007] Driver module;

[0008] A cleaning module is connected to the drive module and is disposed on the outer or inner circumference of the filter screen to contact the dust collection surface of the filter screen. The drive module drives the cleaning module to reciprocate on the outer or inner circumference of the filter screen to scrape the dust collection surface.

[0009] In one embodiment, the driving module includes:

[0010] support;

[0011] The motor is mounted on the bracket;

[0012] The transmission structure is connected to the motor, and the cleaning module is connected to the transmission structure. The motor drives the cleaning module to reciprocate up and down through the transmission structure.

[0013] In one embodiment, the drive module is configured to be disposed on the outside or inside of the filter.

[0014] In one embodiment, the transmission structure includes:

[0015] A lead screw, one end of which is connected to the motor, extends vertically, and the motor drives the lead screw to rotate;

[0016] A sliding component is sleeved on the lead screw and threadedly engaged with the lead screw; when the lead screw rotates, it drives the sliding component to reciprocate up and down; the cleaning module is connected to the sliding component so as to move up and down with the sliding component.

[0017] In one embodiment, the bracket is provided with a vertically extending guide rail, and the sliding member slides in cooperation with the guide rail.

[0018] In one embodiment, the slider includes:

[0019] The slider slides in conjunction with the guide rail.

[0020] An adapter is fitted onto the lead screw and connected to the slider; the cleaning module is connected to the adapter.

[0021] In one embodiment, the transmission structure includes:

[0022] The drive wheel is connected to the motor, and the motor drives the drive wheel to rotate;

[0023] The driven wheel is rotatably mounted on the bracket and located above or below the driving wheel;

[0024] A conveyor belt is fitted onto the driving wheel and the driven wheel; the cleaning module is connected to the conveyor belt, and the conveyor belt drives the cleaning module to reciprocate up and down.

[0025] In one embodiment, the cleaning module further includes a pressure plate, and a connecting portion is provided on the outer side of the cleaning module. The pressure plate and the connecting portion are used to clamp the conveyor belt.

[0026] In one embodiment, the transmission structure includes:

[0027] The gear is connected to the motor, and the motor drives the gear to rotate;

[0028] A rack meshes with the gear and extends vertically; when the gear rotates, it drives the motor to reciprocate up and down along the rack; the cleaning module is connected to the motor so as to move up and down with the motor.

[0029] In one embodiment, the cleaning module has a connecting part on its outer side, and the cleaning module is connected to the motor through the connecting part.

[0030] In one embodiment, there are two motors and two transmission structures, with each transmission structure connected to one of the two sides of the cleaning module.

[0031] In one embodiment, the cleaning module includes:

[0032] A cleaning bracket is connected to the transmission structure;

[0033] A cleaning brush is attached to the cleaning bracket and extends circumferentially along the filter.

[0034] In one embodiment, the drive module is configured to be disposed inside the filter screen.

[0035] In one embodiment, the filter screen is provided with an obstacle avoidance track; the transmission structure includes:

[0036] A lead screw, one end of which is connected to the motor, extends vertically, and the motor drives the lead screw to rotate;

[0037] A crossbeam is fitted onto the lead screw and threadedly engages with it. The end of the crossbeam passes through the clearance rail to connect with the cleaning module. The rotation of the lead screw drives the cleaning module to reciprocate up and down via the crossbeam.

[0038] In one embodiment, the filter screen is provided with at least two of the avoidance tracks; the beam has at least two ends, each end of the beam passing through one of the avoidance tracks.

[0039] In one embodiment, the cleaning module includes:

[0040] A cleaning bracket is connected to the crossbeam;

[0041] At least two cleaning brushes are connected to the cleaning bracket, and one cleaning brush is provided between two adjacent clearance tracks.

[0042] In one embodiment, the cleaning bracket includes a first bracket and a second bracket, with the end of the crossbeam and the cleaning brush both sandwiched between the first bracket and the second bracket.

[0043] In one embodiment, the filter cleaning assembly further includes a dust collection box located below the cleaning module for collecting contaminants scraped off by the cleaning module.

[0044] To achieve the above objectives, this application also proposes an air purifier, comprising:

[0045] The casing is equipped with an air inlet;

[0046] The purification body is located inside the housing and includes a filter screen, with the dust collection surface on the outer periphery of the filter screen corresponding to the air inlet.

[0047] The filter cleaning assembly described above is located inside the housing.

[0048] In one embodiment, the housing is provided with a discharge port; the purification body further includes an ion generator, which releases ions into the air through the discharge port to charge pollutants in the air; the filter generates an electric field when energized, and adsorbs charged pollutants in the air through the electric field; the energizing voltages of the filter and the ion generator are opposite.

[0049] The technical solution of this application uses a drive module to drive a cleaning module to reciprocate on the outer or inner periphery of the filter screen, which can periodically scrape the dust collection surface on the outer or inner periphery of the filter screen, thus automatically cleaning the filter screen periodically. This allows the filter screen to be reused, thereby reducing the frequency of filter screen replacement and reducing the workload of users. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0051] Figure 1 is a cross-sectional view of the first embodiment of the air purifier provided in this application;

[0052] Figure 2 is a partial exploded view of the first embodiment of the air purifier provided in this application;

[0053] Figure 3 is a schematic diagram of the drive module and cleaning module in the first embodiment of the purifier provided in this application;

[0054] Figure 4 is an exploded view of the drive module and the cleaning module in the first embodiment of the purifier provided in this application;

[0055] Figure 5 is a schematic diagram of the drive module and cleaning module in the second embodiment of the purifier provided in this application;

[0056] Figure 6 is an exploded view of the drive module and cleaning module in the second embodiment of the purifier provided in this application;

[0057] Figure 7 is a cross-sectional view of the third embodiment of the air purifier provided in this application;

[0058] Figure 8 is a partial exploded view of the third embodiment of the air purifier provided in this application;

[0059] Figure 9 is a schematic diagram of the drive module and cleaning module in the third embodiment of the purifier provided in this application;

[0060] Figure 10 is an exploded view of the drive module and cleaning module in the third embodiment of the purifier provided in this application;

[0061] Figure 11 is a partial exploded view of the fourth embodiment of the air purifier provided in this application;

[0062] Figure 12 is an exploded view of the drive module and cleaning module in the fourth embodiment of the purifier provided in this application;

[0063] Figure 13 is a front view of the fifth embodiment of the air purifier provided in this application;

[0064] Figure 14 is a cross-sectional view of the fifth embodiment of the air purifier provided in this application;

[0065] Figure 15 is a magnified view of a portion A in Figure 14;

[0066] Figure 16 is an exploded view of the fifth embodiment of the air purifier provided in this application;

[0067] Figure 17 is a schematic diagram of the drive module and cleaning module in the fifth embodiment of the purifier provided in this application;

[0068] Figure 18 is a partial exploded view of the sixth embodiment of the air purifier provided in this application.

[0069] Explanation of icon numbers:

[0070] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0071] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0072] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0073] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0074] An air purifier is a product that can adsorb, decompose, or transform various air pollutants, effectively improving air cleanliness. The filter is the component in the purifier used to adsorb air pollutants and needs to be replaced regularly to ensure effective air purification. However, frequent filter replacements increase the user's workload.

[0075] Based on the above problems, this application proposes a filter cleaning assembly 100, applied in an air purifier 1000, aiming to reduce the replacement frequency of the filter 310 and thus reduce the user's workload. In one embodiment, the air purifier 1000 includes a housing 200, a purification body 300, and the filter cleaning assembly 100. The housing 200 is provided with an air inlet 20a and a discharge port. The purification body 300 includes a filter 310 and an ion generator. The ions generated by the ion generator can be released into the air through the discharge port of the housing 200. The ions attach to pollutants in the air, making the pollutants charged. Since the voltage applied to the filter 310 is opposite to that of the ion generator, the pollutants can be charged with the opposite charge to the filter 310, thereby accelerating the movement of pollutants towards the dust collection surface of the filter 310. This achieves the technical effect of improving the adsorption capacity of the filter 310 and enhancing the air purification capacity and efficiency. The structure of the filter cleaning assembly 100 will be described below by way of embodiments.

[0076] Please refer to Figures 1 to 4. In one embodiment of this application, the filter cleaning assembly 100 includes a drive module 10 and a cleaning module 20. The cleaning module 20 is connected to the drive module 10 and is disposed on the outer or inner circumferential side of the filter 310 to contact the dust collection surface of the filter 310. The drive module 10 drives the cleaning module 20 to reciprocate on the outer or inner circumferential side of the filter 310 to scrape the dust collection surface.

[0077] The cleaning module 20 repeatedly scrapes the dust collection surface of the filter screen 310 during its reciprocating motion, thereby scraping off the contaminants on the filter screen 310 to achieve a self-cleaning function.

[0078] In one embodiment, the filter 310 can collect dust on its outer surface or its inner surface. When the filter 310 uses the outer surface for dust collection, the cleaning module 20 is disposed on the outer periphery of the filter 310 to contact the dust collection surface on the outer periphery of the filter 310, and the drive module 10 drives the cleaning module 20 to reciprocate on the outer periphery of the filter 310. When the filter 310 uses the inner surface for dust collection, the cleaning module is disposed on the inner periphery of the filter 310 to contact the dust collection surface on the inner periphery of the filter 310, and the drive module 10 drives the cleaning module 20 to reciprocate on the inner periphery of the filter 310.

[0079] In one embodiment, the drive module 10 can drive the cleaning module 20 to perform reciprocating lifting and lowering motion on the outer or inner periphery of the filter 310, or it can drive the cleaning module 20 to perform reciprocating circumferential motion on the outer or inner periphery of the filter 310, or it can drive the cleaning module 20 to perform reciprocating horizontal motion on the outer or inner periphery of the filter 310. As long as the contaminants on the filter 310 can be scraped off during the reciprocating motion, it is acceptable.

[0080] Furthermore, the drive module 10 can be a structure in which the motor 12 and the lead screw 131 and nut work together, or a structure in which the motor 12 and the gear 136 and rack 137 work together, or a structure in which the motor 12 and the belt work together, or a linear motor 12, as long as it can drive the cleaning structure to perform reciprocating motion.

[0081] In one embodiment, the cleaning module 20 can be in the shape of a ring, a semi-ring, a strip, a wave, etc., which can be determined according to the shape of the dust collection surface of the filter screen 310. As long as the cleaning module 20 matches the dust collection surface of the filter screen 310, the contaminants on the filter screen 310 can be scraped off completely.

[0082] Furthermore, the structure of the cleaning module 20 that comes into contact with the dust collection surface of the filter 310 can be a hanging strip, scraper, brush, towel, or other structural components, as long as they can smoothly scrape off the contaminants on the filter 310 during the reciprocating motion.

[0083] In summary, the technical solution of this application uses the drive module 10 to drive the cleaning module 20 to reciprocate on the outer or inner periphery of the filter screen 310, which can periodically scrape the dust collection surface on the outer or inner periphery of the filter screen 310, thus periodically and automatically cleaning the filter screen 310. This allows the filter screen 310 to be reused, thereby reducing the replacement frequency of the filter screen 310 and reducing the workload of the user.

[0084] Please refer to Figures 1 to 4. In one embodiment of this application, the drive module 10 drives the cleaning module 20 to reciprocate up and down.

[0085] With this configuration, the cleaning module 20 is driven by the drive module 10 to repeatedly scrape the dust collection surface of the filter 310 by reciprocating lifting and lowering. This not only makes the movement stability of the cleaning module 20 more reliable, but also scrapes the pollutants down to the dust collection box 30 below for collection.

[0086] In one embodiment, the drive module 10 can be located on the outside of the filter 310 or on the inside of the filter 310, as long as the drive module 10 can drive the cleaning module 20 to move up and down on the outer periphery of the filter 310.

[0087] Please refer to Figures 3 and 4. In one embodiment of this application, the drive module 10 includes a bracket 11, a motor 12, and a transmission structure 13. The motor 12 is mounted on the bracket 11. The transmission structure 13 is connected to the motor 12. The cleaning module 20 is connected to the transmission structure 13. The motor 12 drives the cleaning module 20 to reciprocate up and down through the transmission structure 13.

[0088] With this setup, the motor 12 is first mounted on the bracket 11 to support the motor 12, and then the transmission structure 13 is connected to the motor 12. When the motor 12 is working, it can drive the cleaning module 20 to move up and down repeatedly through the transmission structure 13, thereby improving the stability of the cleaning module 20 in moving up and down.

[0089] In one embodiment, the cleaning module 20 can be connected to the transmission structure 13 by means of screw connection, crimping, snap-fit, etc., to ensure the reliability of the connection between the transmission structure 13 and the cleaning module 20, thereby smoothly driving the cleaning module 20 to reciprocate up and down.

[0090] Please refer to Figure 2. In one embodiment of this application, the drive module 10 is used to be disposed on the outside or inside of the filter 310.

[0091] With this configuration, since the cleaning module 20 is located on the outer or inner periphery of the filter 310, by also placing the drive module 10 on the outer or inner side of the filter 310, the drive module 10 can be positioned closer to the cleaning module 20 to smoothly drive the cleaning module 20 to move. Furthermore, when the cleaning module 20 is located on the outer periphery of the filter 310, there is no need to provide a structure on the filter 310 to avoid the drive module 10, thus eliminating the need to change the structure of the filter 310 and simplifying the structural design.

[0092] Please refer to Figures 1 to 4. In the first embodiment of this application, the transmission structure 13 includes a lead screw 131 and a slider 132. One end of the lead screw 131 is connected to the motor 12. The lead screw 131 extends vertically, and the motor 12 drives the lead screw 131 to rotate. The slider 132 is sleeved on the lead screw 131 and is threadedly engaged with the lead screw 131. When the lead screw 131 rotates, it drives the slider 132 to reciprocate up and down. The cleaning module 20 is connected to the slider 132 so as to move up and down with the slider 132.

[0093] With this configuration, the cleaning module 20 is fixedly mounted on the sliding member 132, which is sleeved on the lead screw 131 and threadedly engaged with it. One end of the lead screw 131 is connected to the output shaft of the motor 12. Thus, when the motor 12 is operating, it can drive the lead screw 131 to rotate via its output shaft. Because of the threaded engagement between the sliding member 132 and the lead screw 131, the rotation of the lead screw 131 causes the sliding member 132 to move up and down along the length of the lead screw 131, thereby causing the cleaning module 20 to reciprocate. This method of using the lead screw 131 and sliding member 132 to drive the cleaning module 20 up and down offers higher precision and more reliable stability.

[0094] In this embodiment, a fixing plate is provided on the bracket 11, and the motor 12 is mounted on the fixing plate to support the motor 12. One end of the lead screw 131 passes through the fixing plate to connect with the output shaft of the motor 12.

[0095] In one embodiment, in order to improve the stability of the lead screw 131 during rotation, a lead screw support seat 112 can be provided on the bracket 11 so that the end of the lead screw 131 away from the motor 12 is rotatably mounted on the lead screw support seat 112 so as to effectively support the lead screw 131 through the lead screw support seat 112.

[0096] In one embodiment, the transmission structure 13 may be provided with one or at least two. When there is one transmission structure 13, it is a single drive scheme for the motor 12; when there are at least two transmission structures 13, it is a dual drive or multi drive scheme for the motor 12. The specific configuration can be determined according to the actual application and is not specifically limited here.

[0097] Please refer to Figure 4. In the first embodiment of this application, the bracket 11 is provided with a guide rail 111 extending vertically, and the slider 132 is slidably engaged with the guide rail 111.

[0098] With this configuration, as the lead screw 131 rotates and drives the slider 132 to rise and fall, the slider 132 can also slide and cooperate with the guide rail 111 to guide the slider 132. This improves the stability of the slider 132 during the rising and falling process through the cooperation between the slider 132 and the guide rail 111.

[0099] In this embodiment, the guide rail 111 can be located on one side of the lead screw 131 and arranged parallel to the lead screw 131, so as to ensure that the sliding member 132 can be sleeved on the lead screw 131 and can also slide in cooperation with the guide rail 111.

[0100] Please refer to Figure 4. In the first embodiment of this application, the slider 132 includes a slider 1321 and an adapter 1322; the slider 1321 is slidably engaged with the guide rail 111; the adapter 1322 is sleeved on the lead screw 131 and connected to the slider 1321; the cleaning module 20 is connected to the adapter 1322.

[0101] This configuration, by dividing the slider 132 into two structural components, slider 1321 and adapter 1322, allows slider 1321 and adapter 1322 to cooperate with guide rail 111 and lead screw 131 respectively, making it easier to achieve simultaneous cooperation between slider 132 and guide rail 111 and lead screw 131.

[0102] In this embodiment, the adapter 1322 can be L-shaped, including a first connecting plate and a second connecting plate arranged at an angle. The first connecting plate is sleeved on the lead screw 131, and the second connecting plate is installed on one side of the slider 1321 and fixedly connected to the slider 1321. The cleaning module 20 can be installed on the side of the second connecting plate away from the slider 1321 and fixedly connected to the second connecting plate.

[0103] In one embodiment, the cleaning module 20 can be fixedly connected to the adapter 1322 by means of screw connection, snap-fit, plug-in, etc., and the adapter 1322 can also be fixedly connected to the slider 1321 by means of screw connection, snap-fit, plug-in, etc.

[0104] Please refer to Figures 5 and 6. In the second embodiment of this application, most of the structure is the same as that of the first embodiment, except that the slider 132 in the second embodiment may only include the slider 1321, without the use of the adapter 1322. In this way, the slider 1321 can be directly sleeved on the lead screw 131 and threadedly engaged with the lead screw 131. The slider 1321 also slides with the guide rail 111, so that the motor 12 and the lead screw 131 directly form a whole with the slider 1321 and the guide rail 111. This makes the width space occupied by the motor 12 and the lead screw 131 the same as the width space occupied by the slider 1321 and the guide rail 111, thus reducing the width dimension of the entire assembly by the width occupied by the motor 12 and the lead screw 131, and making the overall structure more compact and precise.

[0105] In this embodiment, the guide rail 111 and the cleaning module 20 can be respectively located on opposite sides of the slider 1321, and the motor 12 is located above the slider 1321, making the overall structure more compact.

[0106] Please refer to Figures 7 to 10. In the third embodiment of this application, the transmission structure 13 is different from that in the second embodiment. The transmission structure 13 in this embodiment includes a drive wheel 133, a transmission wheel, and a conveyor belt 135. The drive wheel 133 is connected to the motor 12, and the motor 12 drives the drive wheel 133 to rotate. The driven wheel 134 is rotatably mounted on the bracket 11 and is located above or below the drive wheel 133. The conveyor belt 135 is sleeved on the drive wheel 133 and the driven wheel 134. The cleaning module 20 is connected to the conveyor belt 135, and the conveyor belt 135 drives the cleaning module 20 to reciprocate up and down.

[0107] With this configuration, the cleaning module 20 is fixedly mounted on the conveyor belt 135, which is fitted onto the drive wheel 133 and the driven wheel 134. The drive wheel 133 is fitted onto the output shaft of the motor 12. When the motor 12 is operating, its output shaft drives the drive wheel 133 to rotate, which in turn drives the conveyor belt 135 and the driven wheel 134 to rotate, thus causing the cleaning module 20 to reciprocate up and down. Using the drive wheel 133 and the driven wheel 134 in conjunction with the transmission belt to drive the cleaning module 20 up and down also achieves higher precision and more reliable stability.

[0108] In this embodiment, the motor 12 can be fixed to the housing 200 of the purifier 1000 by the bracket 11, or it can be directly fixed to the housing 200 of the purifier 1000.

[0109] Furthermore, the driven wheel 134 can be mounted on the fixing member and can rotate relative to the fixing member. The fixing member can be fixed to the housing 200 of the purifier 1000 by the bracket 11, or it can be directly fixed to the housing 200 of the purifier 1000.

[0110] In one embodiment, both the driving wheel 133 and the driven wheel 134 are provided with external teeth, and the conveyor belt 135 is provided with internal teeth. When the conveyor belt 135 is fitted onto the driving wheel 133 and the driven wheel 134, it can mesh with the driving wheel 133 and the driven wheel 134, which can improve the motion accuracy and reliability of the conveyor belt 135.

[0111] In one embodiment, the conveyor belt 135 can be a belt, chain, or other structural component, as long as the rotation of the drive wheel 133 can drive the conveyor belt 135 to rotate, thereby driving the cleaning module 20 to reciprocate up and down.

[0112] Furthermore, the cleaning module 20 can be fixedly connected to the conveyor belt 135 by means of crimping, screw connection, snap-fit, etc., to ensure the reliability of the connection between the cleaning module 20 and the conveyor belt 135.

[0113] In one embodiment, the transmission structure 13 may be provided with one or at least two. When there is one transmission structure 13, it is a single drive scheme for the motor 12; when there are at least two transmission structures 13, it is a dual drive or multi drive scheme for the motor 12. The specific scheme can be determined according to the actual use, and no specific limitation is made here.

[0114] Please refer to Figures 9 and 10. In the third embodiment of this application, the cleaning module 20 further includes a pressure plate 21a. A connecting part 21b is provided on the outer side of the cleaning module 20. The pressure plate 21a and the connecting part 21b fix and clamp the conveyor belt 135.

[0115] With this configuration, during installation, the pressure plate 21a and the connecting part 21b can be used to clamp the conveyor belt 135. This not only ensures the reliability of the connection between the cleaning module 20 and the conveyor belt 135, allowing the cleaning module 20 and the conveyor belt 135 to move up and down synchronously, but also facilitates the disassembly and assembly of the cleaning module 20 and the conveyor belt 135, thereby facilitating the replacement and maintenance of the cleaning module 20.

[0116] In one embodiment, the connection between the pressure plate 21a and the cleaning module 20 can be achieved by means of snap-fit, screw connection or other methods, and no specific limitation is made here.

[0117] Please refer to Figures 11 and 12. In the fourth embodiment of this application, the transmission structure 13 is different from that in the third embodiment. In this embodiment, the transmission structure 13 includes a gear 136 and a rack 137. The gear 136 is connected to the motor 12, and the motor 12 drives the gear 136 to rotate. The rack 137 meshes with the gear 136 and extends vertically. When the gear 136 rotates, it drives the motor 12 to reciprocate up and down along the rack 137. The cleaning module 20 is connected to the motor 12 so as to move up and down with the motor 12.

[0118] With this configuration, the cleaning module 20 is fixedly mounted on the motor 12. The motor 12 meshes with the rack 137 via a gear 136. When the motor 12 is operating, its output shaft drives the gear 136 to rotate. As the gear 136 rotates, it reciprocates along the length of the rack 137, thereby causing the motor 12 and the cleaning module 20 to reciprocate. Using the gear 136 and rack 137 to move the cleaning module 20 up and down also improves accuracy and stability.

[0119] In this embodiment, the rack 137 can be fixed to the housing 200 of the purifier 1000 by the bracket 11, or it can be directly fixed to the housing 200 of the purifier 1000.

[0120] Furthermore, the cleaning module 20 is fixedly connected to the fixing part of the motor 12, for example, fixedly connected to the housing of the motor 12.

[0121] In one embodiment, the transmission structure 13 may be provided with one or at least two. When there is one transmission structure 13, it is a single drive scheme for the motor 12; when there are at least two transmission structures 13, it is a dual drive or multi drive scheme for the motor 12. The specific scheme can be determined according to the actual use, and no specific limitation is made here.

[0122] Please refer to Figure 12. In the fourth embodiment of this application, the cleaning module 20 is provided with a connecting part 21b on its outer side, and the cleaning module 20 is connected to the motor 12 through the connecting part 21b.

[0123] With this configuration, the cleaning module 20 can be connected to the fixing part of the motor 12 via the connecting part 21b, so as to realize the connection between the cleaning module 20 and the motor 12, and then smoothly drive the cleaning module 20 to reciprocate up and down by the lifting and lowering of the motor 12.

[0124] In this embodiment, the connecting part 21b can be integrated with the cleaning module 20 to ensure the reliability of the connection between the connecting part 21b and the cleaning module 20.

[0125] Furthermore, the connecting portion 21b of the cleaning module 20 can serve as a mounting plate for mounting the motor 12, so that the motor 12 and the gear 136 are respectively mounted on opposite sides of the connecting portion 21b, wherein the output shaft of the motor 12 can pass through the connecting portion 21b to connect with the gear 136.

[0126] In one embodiment, the connecting part 21b may include a connecting rod and a connecting plate. The connecting plate is connected to the outside of the cleaning module 20 via the connecting rod, and the motor 12 and the gear 136 are respectively mounted on opposite sides of the connecting plate.

[0127] Please refer to Figures 7 to 12. In one embodiment of this application, there are two motors 12 and two transmission structures 13. The two transmission structures 13 are respectively connected to the two sides of the cleaning module 20, and each transmission structure 13 is connected to a motor 12.

[0128] With this setup, the cleaning module 20 can be driven to move up and down in a dual-drive manner, which can improve the stability of the cleaning module 20 during the up and down process, thereby improving the cleaning effect of the cleaning module 20 on the filter 310.

[0129] In one embodiment, the two transmission structures 13 may have the same or different structures, as long as they move synchronously. For example, both transmission structures 13 may be a lead screw 131 and a slider 132; or one of the two transmission structures 13 may be a lead screw 131 and a slider 132, and the other may be a driving wheel 133, a driven wheel 134, and a conveyor belt 135; or one of the two transmission structures 13 may be a driving wheel 133, a driven wheel 134, and a conveyor belt 135, and the other may be a gear 136 and a rack 137.

[0130] Furthermore, the two transmission structures 13 can be driven by using only one motor 12, or they can be driven by their respective corresponding motors 12.

[0131] Please refer to Figures 1 to 12. In one embodiment of this application, the cleaning module 20 includes a cleaning bracket 21 and a cleaning brush 22; the cleaning bracket 21 is connected to the transmission structure 13; the cleaning brush 22 is connected to the cleaning bracket 21 and extends circumferentially along the filter screen 310.

[0132] This configuration, by mounting the cleaning brush 22 on the cleaning bracket 21 and supporting the cleaning brush 22 through the cleaning bracket 21, not only improves the installation reliability of the cleaning brush 22, but also prevents the cleaning brush 22 from deforming when scraping the filter screen 310, thus affecting the cleaning effect on the filter screen 310.

[0133] In one embodiment, the cross-section of the dust collection surface on the outer periphery of the filter screen 310 can be circular, rectangular, or other shapes. Correspondingly, the cross-section of the cleaning brush 22 can also be circular, rectangular, or other shapes, as long as the shape of the cleaning brush 22 matches the shape of the filter screen 310.

[0134] Please refer to Figures 13 to 18. In one embodiment of this application, the drive module 10 is used to be disposed inside the filter 310.

[0135] With this configuration, by installing the drive module 10 inside the filter 310, the unused space inside the filter 310 can be effectively utilized. The drive module 10 does not need to occupy additional space, making the overall structure more compact and reducing the overall size of the machine.

[0136] Please refer to Figures 13 to 17. In the fifth embodiment of this application, the filter screen 310 is provided with a clearance track 31a; the transmission structure 13 includes a lead screw 131 and a crossbeam 138; one end of the lead screw 131 is connected to the motor 12, the lead screw 131 extends vertically, and the motor 12 drives the lead screw 131 to rotate; the crossbeam 138 is sleeved on the lead screw 131 and threadedly engaged with the lead screw 131, and the end of the crossbeam 138 passes through the clearance track 31a to connect with the cleaning module 20; the rotation of the lead screw 131 drives the cleaning module 20 to reciprocate up and down through the crossbeam 138.

[0137] In this configuration, the cleaning module 20 is connected to the end of the crossbeam 138 that passes through the clearance rail 31a, providing support and fixation for the cleaning module 20. The crossbeam 138 is sleeved on the lead screw 131 and threadedly engaged with it. One end of the lead screw 131 is connected to the output shaft of the motor 12. Thus, when the motor 12 is working, it can drive the lead screw 131 to rotate via its output shaft. Due to the threaded engagement between the crossbeam 138 and the lead screw 131, the rotation of the lead screw 131 can drive the crossbeam 138 to rise and fall along the length of the lead screw 131, thereby causing the cleaning module 20 to reciprocate up and down. Using the engagement of the lead screw 131 and the crossbeam 138 to drive the cleaning module 20 up and down also achieves higher precision and more reliable stability.

[0138] In one embodiment, the filter 310 may have one or at least two clearance tracks 31a, and one or at least two ends of the crossbeam 138 pass through the corresponding clearance track 31a to connect with the cleaning module 20. The crossbeam 138 may be a single long crossbar or at least two intersecting crossbars.

[0139] Please refer to Figure 17. In the fifth embodiment of this application, the filter screen 310 is provided with at least two clearance tracks 31a; the crossbeam 138 has at least two ends, and each end of the crossbeam 138 passes through one clearance track 31a of the filter screen 310.

[0140] With this configuration, at least two ends of the crossbeam 138 can pass through the corresponding clearance rails 31a, so that at least two ends of the crossbeam 138 are connected to the cleaning module 20. This can improve the stability of the cleaning module 20 during the reciprocating lifting process, thereby improving the cleaning effect of the cleaning module 20 on the filter 310.

[0141] Please refer to Figure 17. In the fifth embodiment of this application, the cleaning module 20 includes a cleaning bracket 21 and at least two cleaning brushes 22. The cleaning bracket 21 is connected to the crossbeam 138. At least two cleaning brushes 22 are connected to the cleaning bracket 21, and a cleaning brush 22 is provided between two adjacent clearance rails 31a.

[0142] With this configuration, the design of the avoidance track 31a divides the filter screen 310 into at least two parts. By installing at least two cleaning brushes 22 on the cleaning bracket 21, at least two parts of the filter screen 310 can be cleaned by the at least two cleaning brushes 22 respectively, so that all parts of the filter screen 310 can be cleaned, thereby improving the cleaning effect of the filter screen 310.

[0143] Please refer to Figure 16. In the fifth embodiment of this application, the cleaning bracket 21 includes a first bracket 211 and a second bracket 212. The end of the crossbeam 138 and the cleaning brush 22 are both sandwiched between the first bracket 211 and the second bracket 212.

[0144] With this configuration, by clamping the end of the crossbeam 138 and the cleaning brush 22 between the first bracket 211 and the second bracket 212, the cleaning brush 22 can be fixed to the cleaning bracket 21, and the cleaning bracket 21 can be connected to the crossbeam 138.

[0145] In one embodiment, the cross-section of the dust collection surface on the outer periphery of the filter 310 can be circular, rectangular, or other shapes.

[0146] In the fifth embodiment, the dust collection surface cross-section of the outer periphery of the filter screen 310 is circular. Two clearance channels can be provided on the filter screen 310. The filter screen 310 includes a membrane skeleton and an adsorption membrane. The adsorption membrane can be supported by the membrane skeleton. The membrane skeleton includes a membrane skeleton base 311, a membrane skeleton top cover 312, a membrane skeleton left 313, and a membrane skeleton right 314. The adsorption membrane includes an adsorption membrane left 315 and an adsorption membrane right 316. The upper ends of the membrane skeleton left 313 and the membrane skeleton right 314 are connected to the membrane skeleton top cover 312, and the lower ends are connected to the membrane skeleton base 311. The mating part of the membrane skeleton left 313 and the membrane skeleton right 314 forms two clearance tracks 31a, which are used to guide the up and down movement of the crossbeam 138 and prevent the crossbeam 138 from rotating. The crossbeam 138 is a long strip of horizontal bar with two ends. The two ends of the crossbeam 138 pass through the two clearance tracks 31a respectively. The adsorption membrane 315 on the left is attached to the surface of the membrane skeleton 313 on the left, and the adsorption membrane 316 on the right is attached to the surface of the membrane skeleton 314 on the right. The motor 12 is mounted on the membrane skeleton base 311, one end of the lead screw 131 is connected to the motor 12, and the other end of the lead screw 131 is connected to the membrane skeleton top cover 312.

[0147] Please refer to Figure 18. In the sixth embodiment of this application, most of the structures are the same as those in the fifth embodiment, except that the cleaning module 20 in the sixth embodiment has a different shape. In this embodiment, the dust collection surface of the outer periphery of the filter screen 310 has a rectangular cross-section. Four clearance channels can be provided on the filter screen 310. The filter screen 310 includes a membrane skeleton and an adsorption membrane. The adsorption membrane can be supported by the membrane skeleton. The membrane skeleton includes a membrane skeleton base 311, a membrane skeleton top cover 312, a membrane skeleton left 313, a membrane skeleton right 314, a membrane skeleton front, and a membrane skeleton rear. The adsorption membrane includes an adsorption membrane left 315, an adsorption membrane right 316, an adsorption membrane front, and an adsorption membrane rear. The upper ends of the membrane skeleton left 313, membrane skeleton right 314, membrane skeleton front, and membrane skeleton rear are connected to the membrane skeleton top cover 312, and the lower ends are connected to the membrane skeleton base 311. The mating parts of the membrane skeleton left 313, membrane skeleton right 314, membrane skeleton front, and membrane skeleton rear form four clearance channels, which are used to guide the up and down movement of the crossbeam 138 and prevent the crossbeam 138 from rotating. The crossbeam 138 is two crossbars with four ends. The four ends of the crossbeam 138 pass through four clearance tracks 31a respectively. The left adsorption membrane 315 is attached to the surface of the left membrane skeleton 313, the right adsorption membrane 316 is attached to the surface of the right membrane skeleton 314, the front adsorption membrane is attached to the front surface of the membrane skeleton, and the rear adsorption membrane is attached to the rear surface of the membrane skeleton. The motor 12 is mounted on the membrane skeleton base 311, one end of the lead screw 131 is connected to the motor 12, and the other end of the lead screw 131 is connected to the membrane skeleton top cover 312.

[0148] Please refer to Figure 1. In one embodiment of this application, the filter cleaning assembly 100 further includes a dust collection box 30, which is located below the cleaning module 20 and is used to collect contaminants scraped off by the cleaning module 20.

[0149] With this configuration, after the drive module 10 drives the cleaning module 20 to reciprocate to scrape off the contaminants, the contaminants can fall into the dust collection box 30 below, so that the contaminants can be collected by the dust collection box 30, thus realizing the automatic collection of contaminants.

[0150] In one embodiment, there may be one dust collection box 30 or at least two dust collection boxes 30. Furthermore, the dust collection box 30 may be in the shape of a disc, a semi-disc, a square, etc., specifically matching the shape of the filter screen 310 to fully collect the scraped contaminants.

[0151] Furthermore, the dust collection box 30 can be assembled in a drawer-like manner onto the membrane frame base 311 of the filter screen 310, and the membrane frame base 311 is provided with an air-proof structure so that after pollutants fall off the dust collection surface of the filter screen 310, they fall onto the dust collection box 30 through the air-proof structure.

[0152] Please refer to Figures 1 to 18. This application also proposes an air purifier 1000, which includes a housing 200, a purification body 300, and a filter cleaning assembly 100. The specific structure of the filter cleaning assembly 100 is as described in the above embodiments. Since this air purifier 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The housing 200 is provided with an air inlet 20a; the purification body 300 is disposed inside the housing 200 and includes a filter 310, with the dust collection surface on the outer periphery of the filter 310 corresponding to the air inlet 20a; the filter cleaning assembly 100 is disposed inside the housing 200.

[0153] After the filter 310 purifies the air for a period of time, the cleaning module 20 is driven by the drive module 10 to reciprocate on the outer periphery of the filter 310, which can periodically scrape the dust collection surface on the outer periphery of the filter 310, thus periodically and automatically cleaning the filter 310. This allows the filter 310 to be reused, thereby reducing the frequency of filter replacement and reducing the workload of the user.

[0154] When energized, filter 310 generates an electric field, forming an electric field region in front of the dust collection surface. Pollutants within this region are polarized and move towards the dust collection surface under the influence of Coulomb force until they are adsorbed onto the surface. Alternatively, pollutants in the electric field region become charged and adsorb onto the surface. This adsorption reduces the concentration of pollutants in the electric field region. The concentration difference causes pollutants outside the electric field region to migrate towards the lower concentration area. Wind can also cause pollutants to migrate from outside the electric field region to the lower concentration area, thereby reducing the overall concentration of pollutants in the environment and achieving air purification.

[0155] The purifier 1000 collects pollutants using an electric field. The collected pollutants are adsorbed onto the dust collection surface of the filter 310. After use, the pollutants can be removed by washing or wiping the dust collection surface, eliminating the need for frequent filter replacements and reducing the operating cost of the purifier 1000. Since there is no filter 310, there are no consumables, and it can be cleaned and reused repeatedly, thus solving the pain points of existing purifiers 1000 that require frequent filter 310 replacements and are difficult to clean. At the same time, the noise generated by the filter 310 when powered on is relatively low, improving the user experience.

[0156] In this embodiment, the housing 200 may include an upper housing 210 and a lower housing 220, which cover each other to form a cavity for installing the purification body 300 and the filter cleaning assembly 100.

[0157] The pollutants mentioned in this application are mainly particulate pollutants, including dust, smoke, particulate matter, bacteria, and viruses in the air. They vary in diameter and can generally be classified into the following categories according to their diameter:

[0158] Visible particulate matter: Particulate matter with a diameter of 10 micrometers or less can be seen, such as dust, pollen, and human skin flakes.

[0159] Fine particulate matter: Particulate matter with a diameter of 2.5 micrometers or less, which cannot be seen with the naked eye, but has a significant impact on human health, such as automobile exhaust and factory exhaust.

[0160] Ultrafine particles: Particles with a diameter of 0.1 micrometers or less, which cannot be seen with the naked eye, but can penetrate deep into the human respiratory tract and have a greater impact on human health, such as viruses and bacteria.

[0161] Please refer to Figure 1. In one embodiment of this application, the housing 200 is provided with a discharge port; the purification body 300 also includes an ion generator, which releases ions into the air through the discharge port to charge pollutants in the air; the filter 310 generates an electric field when energized, and adsorbs charged pollutants in the air through the electric field; the energizing voltage of the filter 310 and the ion generator are opposite.

[0162] With this setup, the ions generated by the ion generator are released into the air through the discharge port. The ions attach to pollutants in the air, making the pollutants charged. Since the voltage of the filter 310 is opposite to that of the ion generator, the pollutants can be charged with the opposite charge to the filter 310, thereby accelerating the movement of the pollutants toward the dust collection surface of the filter 310. This achieves the technical effect of improving the adsorption capacity of the filter 310 and enhancing the air purification capacity and efficiency.

[0163] At the same time, the ions released by the ion generator can also sterilize and reduce the content of toxic substances in the air to protect the health of users.

[0164] When the ion generator emits negative ions, the filter 310 is supplied with positive DC high voltage; when the ion generator emits positive ions, the filter 310 is supplied with negative DC high voltage.

[0165] In this embodiment, one of the positive and negative terminals on the power supply component can be connected to the filter 310, and the other can be electrically connected to the ion generator, so that the polarity of the ions accumulated on the filter 310 and the ions released by the ion generator are opposite.

[0166] In one embodiment, the ion generator may include a high-voltage transformer and an emitter head; the emitter head is electrically connected to the high-voltage transformer, and the high-voltage transformer supplies power to the emitter head so that the emitter head generates ions corresponding to the electrodes and sprays the ions into the air through the discharge port. This allows the ions to be sprayed into the air in a larger area near the purifier 1000, thereby improving the air purification effect.

[0167] In one embodiment, a fan may also be provided inside the housing 200. When the fan is working, it can generate a directional airflow, which can drive the ions generated by the ion generator to diffuse into the air, so that more pollutants in the air can be attached by the ions. It can also drive the charged pollutants in the air to move towards the filter 310, thereby accelerating the airflow around the purifier 1000. Thus, together with the filter 310 and the ion generator, the air purification capacity can be improved. At the same time, the directional flow of ions can sterilize the pollutants in the airflow, thereby reducing the content of toxic substances in the air and protecting the health of users.

[0168] The fan may include a motor 12, a fan wheel, and an air duct. The motor 12 is used to drive the fan wheel to rotate in the air duct to generate negative pressure. Under the action of negative pressure, the air outside the purifier 1000 enters the air duct from the air inlet 20a and then flows out of the air from the discharge port to form an air circulation effect.

[0169] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A filter cleaning assembly, wherein, The filter cleaning assembly includes: Driver module; A cleaning module is connected to the drive module and is disposed on the outer or inner circumference of the filter screen to contact the dust collection surface of the filter screen. The drive module drives the cleaning module to reciprocate on the outer or inner circumference of the filter screen to scrape the dust collection surface.

2. The filter cleaning assembly as claimed in claim 1, wherein, The driving module includes: support; The motor is mounted on the bracket; The transmission structure is connected to the motor, and the cleaning module is connected to the transmission structure. The motor drives the cleaning module to reciprocate up and down through the transmission structure.

3. The filter cleaning assembly as described in claim 2, wherein, The drive module is used to be installed on the outside or inside of the filter.

4. The filter cleaning assembly as described in claim 3, wherein, The transmission structure includes: A lead screw, one end of which is connected to the motor, extends vertically, and the motor drives the lead screw to rotate; A sliding component is sleeved on the lead screw and threadedly engaged with the lead screw; when the lead screw rotates, it drives the sliding component to reciprocate up and down; the cleaning module is connected to the sliding component so as to move up and down with the sliding component.

5. The filter cleaning assembly as claimed in claim 4, wherein, The bracket is provided with a guide rail extending vertically, and the sliding member slides in cooperation with the guide rail.

6. The filter cleaning assembly as claimed in claim 5, wherein, The slider includes: The slider slides in conjunction with the guide rail. An adapter is fitted onto the lead screw and connected to the slider; the cleaning module is connected to the adapter.

7. The filter cleaning assembly as claimed in claim 3, wherein, The transmission structure includes: The drive wheel is connected to the motor, and the motor drives the drive wheel to rotate; The driven wheel is rotatably mounted on the bracket and located above or below the driving wheel; A conveyor belt is fitted onto the driving wheel and the driven wheel; the cleaning module is connected to the conveyor belt, and the conveyor belt drives the cleaning module to reciprocate up and down.

8. The filter cleaning assembly as claimed in claim 7, wherein, The cleaning module also includes a pressure plate, and a connecting part is provided on the outside of the cleaning module. The pressure plate and the connecting part are used to clamp the conveyor belt.

9. The filter cleaning assembly as claimed in claim 3, wherein, The transmission structure includes: The gear is connected to the motor, and the motor drives the gear to rotate; A rack meshes with the gear and extends vertically; when the gear rotates, it drives the motor to reciprocate up and down along the rack; the cleaning module is connected to the motor so as to move up and down with the motor.

10. The filter cleaning assembly as claimed in claim 9, wherein, The cleaning module has a connecting part on its outer side, and the cleaning module is connected to the motor through the connecting part.

11. The filter cleaning assembly as claimed in claim 2, wherein, Both the motor and the transmission structure are provided in twos, and the two transmission structures are respectively connected to both sides of the cleaning module. Each transmission structure is connected to one of the motors.

12. The filter cleaning assembly as claimed in claim 2, wherein, The cleaning module includes: A cleaning bracket is connected to the transmission structure; A cleaning brush is attached to the cleaning bracket and extends circumferentially along the filter.

13. The filter cleaning assembly as claimed in claim 2, wherein, The drive module is used to be disposed on the inside of the filter screen.

14. The filter cleaning assembly of claim 13, wherein, The filter screen is equipped with a clearance track; the transmission structure includes: A lead screw, one end of which is connected to the motor, extends vertically, and the motor drives the lead screw to rotate; A crossbeam is fitted onto the lead screw and threadedly engages with it. The end of the crossbeam passes through the clearance rail to connect with the cleaning module. The rotation of the lead screw drives the cleaning module to reciprocate up and down via the crossbeam.

15. The filter cleaning assembly of claim 14, wherein, The filter screen is provided with at least two of the avoidance tracks; the crossbeam has at least two ends, each end of the crossbeam passing through one of the avoidance tracks.

16. The filter cleaning assembly of claim 14, wherein, The cleaning module includes: A cleaning bracket is connected to the crossbeam; At least two cleaning brushes are connected to the cleaning bracket, and one cleaning brush is provided between two adjacent clearance tracks.

17. The filter cleaning assembly of claim 16, wherein, The cleaning support includes a first support and a second support, with the end of the crossbeam and the cleaning brush both sandwiched between the first support and the second support.

18. The filter cleaning assembly as claimed in any one of claims 1 to 17, wherein, The filter cleaning assembly also includes a dust collection box located below the cleaning module, which is used to collect contaminants scraped off by the cleaning module.

19. A purifier, wherein, The purifier includes: The casing is equipped with an air inlet; The purification body is located inside the housing and includes a filter screen, with the dust collection surface on the outer periphery of the filter screen corresponding to the air inlet. The filter cleaning assembly as described in any one of claims 1 to 18 is disposed within the housing.

20. The air purifier as claimed in claim 19, wherein, The casing is provided with a discharge port; the purification body also includes an ion generator, which releases ions into the air through the discharge port to charge pollutants in the air; the filter generates an electric field when energized, and adsorbs charged pollutants in the air through the electric field; the energizing voltages of the filter and the ion generator are opposite.

Images