Air handling device

Abstract

The utility model discloses an air treatment equipment relates to air treatment technical field, wherein, air treatment equipment includes main part, filter assembly, cleaning assembly and dust absorption subassembly. Main part is equipped with air inlet, air outlet and the filter air duct of intercommunication air inlet and air outlet. Filter assembly includes the first filter part and second filter part who sets up in turn along the airflow direction, and the first filter part is used for intercepting big particle contaminant, and the second filter part is used for filtering fine particulate matter. Cleaning assembly cleans the first filter part to remove the dust, hair and so on big particle dirt accumulated on the surface of the first filter part, and dust absorption subassembly removes the fine particle contaminant on the second filter part through the negative pressure adsorption mode, so that the first filter part and the second filter part of filter assembly can be cleaned, thereby maintaining the filtering efficiency, reducing the wind resistance rising rate, prolonging the filter screen service life.

Description

Technical Field

[0001] This utility model relates to the field of air treatment technology, and in particular to an air treatment device. Background Technology

[0002] In air handling equipment, multi-stage filtration is typically used to effectively remove various pollutants from the air, targeting particles of different sizes. In existing technologies, a pre-filter is usually installed at the air inlet to intercept large particles such as dust and hair; a high-efficiency filter is installed near the air outlet to remove fine particles, thus achieving step-by-step purification and improving filtration efficiency and air quality.

[0003] However, during long-term operation, dust, hair, and other contaminants easily accumulate on the surfaces of the pre-filter and high-efficiency filter, leading to increased filter resistance and reduced airflow. This not only affects the air purification effect and operating efficiency of the equipment but may also accelerate the aging of the filter material and shorten its service life. In addition, excessive dust accumulation may also breed microorganisms, causing secondary pollution and reducing the overall reliability of the equipment. Utility Model Content

[0004] The main purpose of this invention is to propose an air handling device that aims to solve the problem that in existing air handling devices, multi-stage filtration components easily accumulate pollutants after long-term operation, leading to decreased filtration efficiency and increased air resistance.

[0005] To achieve the above objectives, the air handling equipment proposed in this utility model includes:

[0006] The main body has an air inlet, an air outlet, and a filter duct connecting the air inlet and the air outlet;

[0007] The filter assembly includes a plurality of filter sections disposed on the filter duct, wherein the plurality of filter sections include at least a first filter section and a second filter section that are sequentially spaced apart from the air inlet to the air outlet.

[0008] A cleaning component for cleaning dirt from the first filter section; and,

[0009] A vacuuming assembly is used to at least adsorb and clean dirt from the second filter section.

[0010] In one embodiment, the main body is further provided with a cleaning port that communicates with the filter duct;

[0011] The dust collection component is disposed on the main body, and the dust collection component has a dust collection port, which is connected to the filter air duct through the cleaning port.

[0012] In one embodiment, the cleaning component is installed at the cleaning port, and the cleaning component has an air passage gap.

[0013] The suction port is connected to the filter duct through the air gap, and the suction assembly is also used to adsorb the dirt cleaned from the first filter by the cleaning assembly.

[0014] In one embodiment, the width of the air gap is W, wherein:

[0015] 2mm≤W≤20mm; and / or,

[0016] The second filter section includes a plurality of pleated units connected sequentially in the width direction of the air passage gap, and the pleat distance between each two adjacent pleated units is L, where 1 / 2L≤W≤4L.

[0017] In one embodiment, the cleaning component includes:

[0018] A roller brush, rotatably disposed about its axis and at least partially in contact with the first filter section, is used to clean dirt from the surface of the first filter section during its rotational stroke; the roller brush is provided with the air passage gap; and,

[0019] At least one scraper assembly is disposed on one side of the roller brush for scraping off dirt wrapped around the roller brush.

[0020] In one embodiment, a dust collection chamber is defined between the vacuuming assembly and the cleaning assembly. The dust collection chamber is connected to the air gap and the vacuum port and is used to collect the dirt cleaned by the scraper assembly.

[0021] In one embodiment, the air handling device further includes a pressing part movably disposed along the axial direction of the roller brush. The pressing part is disposed in the dust collection chamber and is used to compress the dirt located in the dust collection chamber to the bottom of the dust collection chamber during its stroke toward the bottom wall of the dust collection chamber.

[0022] In one embodiment, the vacuuming assembly includes:

[0023] The housing has a dust inlet, an exhaust outlet, and a dust suction channel that communicates with the dust inlet and the exhaust outlet.

[0024] A suction fan, disposed within the housing, is used to drive airflow from the suction port through the suction channel toward the exhaust port; and...

[0025] A dust collection bag is installed at the air outlet of the suction channel to collect dirt discharged from the air outlet of the suction channel.

[0026] In one embodiment, the housing has a first sidewall facing the cleaning port, and the suction port is provided on the first sidewall;

[0027] The first sidewall at least partially forms an air guide surface, which is inclined in a direction away from the cleaning port in the direction close to the dust inlet.

[0028] In one embodiment, the exhaust fan is positioned adjacent to the air outlet of the dust extraction channel;

[0029] The dust collection assembly also includes an isolation section disposed between the dust collection bag and the suction port of the fan, for isolating the dust collection bag from the suction port of the fan.

[0030] In one embodiment, a one-way valve is provided at the inlet of the dust collection bag, the one-way valve being used to unidirectionally guide the airflow from the air inlet port of the dust collection channel to the air outlet port of the dust collection channel.

[0031] In one embodiment, the suction port of the suction fan is provided with a third filter; and / or,

[0032] The exhaust port of the suction fan is equipped with a fourth filter section.

[0033] In one embodiment, a noise reduction device is provided between the exhaust port of the suction fan and the exhaust outlet.

[0034] In one embodiment, a flow guiding structure is provided between the exhaust port of the suction fan and the exhaust outlet, and the flow guiding structure includes a volute.

[0035] In one embodiment, the vacuuming assembly is disposed on the outside of the main body.

[0036] In one embodiment, the height difference between the body and the vacuuming assembly is configured to form a step between the body and the vacuuming assembly; and / or,

[0037] The vacuuming assembly is also equipped with a feeding device and / or a water feeding device; and / or,

[0038] A support pad is provided on the top of the main body.

[0039] In one embodiment, the air handling equipment further includes a rotary drive mechanism connected to the filter assembly for driving the filter assembly to rotate about its axis.

[0040] In one embodiment, the air handling equipment includes an air purifier.

[0041] The technical solution provided by this utility model has at least the following advantages:

[0042] By setting up a cleaning component, the first filter section can be cleaned, and the dust collection component uses negative pressure adsorption to remove fine particles from the second filter section, so that both the first and second filter sections of the filter assembly can be cleaned, thereby enabling the filter assembly to maintain filtration efficiency and reduce the rate of wind resistance growth.

[0043] Furthermore, by installing the cleaning component at the cleaning port of the main body and setting an air passage gap on the cleaning component, the suction port connects to the filter air duct through the cleaning port and the air passage gap to form a complete negative pressure flow path. When the cleaning component cleans the first filter section, or after the cleaning component has finished cleaning the first filter section, it can also capture and suck up the dirt collected by the cleaning component, so that the suction component has the dual function of cleaning the second filter section and collecting the cleaned material from the first filter section.

[0044] Furthermore, by setting an air gap in the cleaning component and controlling its width W within the range of 2mm to 20mm, and / or satisfying the relationship 1 / 2L≤W≤4L, the suction airflow can effectively cover the pleated area of ​​the second filter section, improving the ability to remove fine pollutants, further balancing the suction strength and pleat spacing, ensuring that the negative pressure airflow penetrates deep into the pleats, and achieving efficient cleaning.

[0045] Furthermore, a rotatable roller brush is used to clean the first filter section, and a scraper assembly is used to remove tangled debris from the roller brush, effectively removing large particulate pollutants. The scraper assembly works in conjunction with the roller brush to prevent dirt accumulation and maintain the roller brush's cleaning ability.

[0046] Furthermore, by setting up a dust collection chamber between the suction component and the cleaning component, dirt cleaned by the scraper component is temporarily stored to prevent it from scattering inside the device. After cleaning is completed, it is centrally sucked out, achieving staged cleaning, improving suction efficiency, and preventing airflow channel blockage.

[0047] Furthermore, by setting up a movable downward pressure section to compress the dirt in the dust collection chamber, the volume occupied is reduced, the utilization rate of the dust collection space is improved, and particles are prevented from flying during suction.

[0048] Furthermore, by setting up a dust collection assembly that includes a housing, a suction fan, and a dust collection bag, it is possible to collect fine pollutants that fall off the filter assembly. The dust collection bag can be disassembled for cleaning, achieving closed storage of waste.

[0049] Furthermore, by setting an inclined air guide surface on the first side wall of the casing, the airflow is guided smoothly into the dust inlet, reducing flow resistance and eddy current generation, and improving air intake efficiency.

[0050] Furthermore, by setting an isolation section between the dust collection bag and the suction port of the fan, the dust collection bag is prevented from deforming and sticking to the fan inlet under negative pressure, thus ensuring unobstructed airflow.

[0051] Furthermore, by installing a one-way valve at the dust bag inlet, one-way airflow is achieved, preventing dirt from backflowing and escaping due to vibration or airflow disturbance after the dust collection component stops.

[0052] Furthermore, by installing a third filter at the suction port of the blower, particulate matter is prevented from entering the blower and causing wear; and by installing a fourth filter at the exhaust port, the exhaust airflow is further purified.

[0053] Furthermore, by installing a noise reduction device between the exhaust port and the exhaust outlet of the suction fan, airflow noise and mechanical noise can be effectively absorbed and attenuated.

[0054] Furthermore, by setting up a flow guide structure including a volute, the exhaust airflow is guided to turn smoothly, reducing turbulence and pressure loss.

[0055] Furthermore, by placing the vacuuming components on the outside of the main body, it is easy to disassemble and maintain, thus improving ease of use.

[0056] Furthermore, the device's versatility is expanded by creating a step between the main body and the vacuuming components, and incorporating a support pad and feeding or watering devices. The step and support pad can also serve as a pet rest area, improving space utilization.

[0057] Furthermore, the filter assembly is driven to rotate by a rotary drive mechanism, which enables uniform utilization of the filter surface. At the same time, it rotates in the opposite direction to the cleaning component's roller brush, increasing the relative linear velocity and improving the removal effect of dirt from the surface of the first filter section. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0059] Figure 1 A schematic diagram of the structure of an embodiment of the air handling equipment provided by this utility model;

[0060] Figure 2 for Figure 1 Cross-sectional view of the air handling unit;

[0061] Figure 3 for Figure 1 Exploded view of the air handling unit;

[0062] Figure 4 for Figure 1 Exploded view of the main body and cleaning components;

[0063] Figure 5 for Figure 4 Schematic diagram of the cleaning component

[0064] Figure 6 for Figure 5 Cross-sectional view of the cleaning component;

[0065] Figure 7 for Figure 1 Schematic diagram of the central vacuum component;

[0066] Figure 8 for Figure 1 A cross-sectional schematic diagram of another embodiment of the vacuuming component;

[0067] Figure 9 for Figure 8 Schematic diagram of the structure of the central suction fan and the volute;

[0068] Figure 10 for Figure 1 A top view of another embodiment of the air handling unit;

[0069] Figure 11 for Figure 1 A schematic diagram of the rotating drive mechanism.

[0070] Explanation of icon numbers:

[0071] 100. Air handling unit; 10. Main body; a1. Air inlet; a2. Air outlet; a. Filter duct; b. Cleaning port; 20. Filter assembly; 21. First filter section; 22. Second filter section; 30. Cleaning assembly; d. Air passage gap; 31. Roller brush; 32. Scraper assembly; 33. Pressing section; 40. Dust suction assembly; c1. Dust suction port; e. Dust collection chamber; 41. Housing; 411. First side wall; 4111. Air guide surface; c2. Exhaust port; c. Dust suction channel; 42. Fan; 43. Dust collection bag; 44. Isolation section; 45. Third filter section; 46. Fourth filter section; 47. Volute; 50. Feeding device; 60. Water feeding device; 70. Support pad; 80. Rotary drive mechanism.

[0072] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0073] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0074] It should be noted that if the embodiments of this utility model 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.

[0075] Furthermore, if the embodiments of this utility model 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 where both A and B are satisfied simultaneously. 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 by this utility model.

[0076] This utility model proposes an air handling device 100, which is suitable for various places requiring air purification, such as homes, offices, hospitals, laboratories, and vehicles. It can be integrated into air purifiers, air conditioners, fresh air systems, fan boxes, etc., to remove particulate pollutants such as dust, hair, pollen, and PM2.5 from the air. The air handling device 100 can also be applied to mobile purification equipment to achieve indoor air circulation and purification. For ease of explanation, the following description uses the application of this device in a vertical air purifier as an example to specifically describe its filtration and cleaning structure. For other applications, such as vehicle-mounted purification modules, portable purifiers, or embedded fresh air units, the structure can be adapted to meet the actual space and airflow requirements; this specification does not limit this.

[0077] Please see Figures 1 to 3In one embodiment of this utility model, the air handling device 100 includes a main body 10, a filter assembly 20, a cleaning assembly 30, and a dust collection assembly 40. The main body 10 has an air inlet a1, an air outlet a2, and a filter duct a connecting the air inlet a1 and the air outlet a2. The filter assembly 20 includes a plurality of filter sections disposed on the filter duct a, and the plurality of filter sections include at least a first filter section 21 and a second filter section 22 arranged sequentially and at intervals from the air inlet a1 to the air outlet a2. The cleaning assembly 30 is used to clean dirt on the first filter section 21. The dust collection assembly 40 is used to at least adsorb and clean dirt on the second filter section 22.

[0078] Specifically, the main body 10 serves as the external frame and other related components of the air handling equipment 100, with an internal airflow channel. The main body 10 is equipped with an air inlet a1, an air outlet a2, and a filter duct a connecting the two. During the use of the air handling equipment, air enters through the air inlet a1, flows through the filter duct a, and is discharged through the air outlet a2.

[0079] A filter assembly 20 is installed within the filter duct a. The filter assembly 20 includes at least two filter sections, namely a first filter section 21 and a second filter section 22, which are arranged sequentially along the airflow direction. That is, the first filter section 21 is close to the air inlet a1, and the second filter section 22 is located downstream of the first filter section 21. The first filter section 21 is used to intercept large particulate pollutants such as dust and hair; the second filter section 22 is used to capture fine particulate matter, achieving deep purification.

[0080] It should be noted that the first filter section 21 can be configured as a filter screen structure, or as an electrostatic module or other form with primary filtration function; the second filter section 22 can be a high-efficiency filter, such as a HEPA filter, or other structure with particulate capture capability.

[0081] The cleaning component 30 can use a scraper, brush, vibration mechanism, or negative pressure adsorption to remove large particulate impurities attached to the first filter section 21 through friction or peeling action. Specifically, in terms of the structural form of the cleaning component 30, the cleaning component 30 includes, but is not limited to, reciprocating scrapers, rotating brushes, or shakeable filter structures to achieve effective cleaning of the first filter section 21.

[0082] It should be noted that the suction assembly 40 is used to generate negative pressure airflow, and its suction power is sufficient to adsorb and remove fine particulate contaminants attached to the surface of the second filter section 22.

[0083] The position of the vacuuming assembly 40 is not limited. It can be placed on the air outlet a2 side to clean only the second filter section 22; or it can be arranged between the first filter section 21 and the second filter section 22, or near the air inlet a1 side, as long as its negative pressure range covers the second filter section 22. When the suction power of the vacuuming assembly 40 is sufficient, it can also provide auxiliary cleaning for the first filter section 21. The second filter section 22 intercepts particles with smaller diameters, making adsorption a more suitable cleaning method to avoid particle penetration or secondary dispersion.

[0084] It should also be noted that the vacuuming component 40 and the cleaning component 30 can be arranged at intervals along the outer periphery of the main body 10, and are respectively located in different areas in the circumferential direction according to the shape of the main body 10. This layout can make full use of the external space of the main body 10 and avoid interference between components. The specific circumferential positions can be flexibly adjusted according to the distribution of the air inlet a1 and the air outlet a2 and the layout of the internal filter component 20, and this embodiment of the specification does not limit this.

[0085] The specific form of the filter assembly 20 is not limited. In one embodiment, it can be configured as a ring structure, with the first filter section 21 surrounding the periphery of the second filter section 22, and the airflow passing through the filter layer from the outside to the inside or from the inside to the outside.

[0086] Furthermore, the shape of the main body 10, the layout of the air inlet a1 and the air outlet a2, and the direction of the filter duct a are not limited and can be designed according to the actual installation space and airflow organization requirements. The shape of the filter section can be flat, cylindrical, V-shaped, or pleated, etc., and the specific shape can be selected according to the filtration efficiency and space arrangement.

[0087] By setting the cleaning component 30, the first filter section 21 can be cleaned, and the dust collection component 40 removes fine particles from the second filter section 22 by using negative pressure adsorption, so that both the first filter section 21 and the second filter section 22 of the filter component 20 can be cleaned, thereby enabling the filter component 20 to maintain filtration efficiency and reduce the rate of wind resistance growth.

[0088] Specifically, to facilitate airflow between the vacuum assembly 40 and the filter duct a, please refer to... Figure 4 In this embodiment, the main body 10 is also provided with a cleaning port b that is connected to the filter air duct a. The dust collection component 40 is provided on the main body 10, and the dust collection component 40 has a dust collection port c1, which is connected to the filter air duct a through the cleaning port b.

[0089] Thus, the cleaning port b serves as the airflow channel interface between the vacuuming assembly 40 and the filter area. By providing the cleaning port b, the vacuuming assembly 40 can be selectively installed inside or outside the main body 10.

[0090] Specifically, when the vacuuming assembly 40 is built into the main body 10, its suction port c1 acts on the filter duct a via the cleaning port b, directly creating negative pressure suction in the area where the second filter section 22 is located. When the vacuuming assembly 40 is external, the suction port c1 can connect to the filter duct a via the cleaning port b, realizing the connection of the external suction structure.

[0091] Understandably, the vacuuming component 40 and the main body 10 can be detachably connected by snap-fit, thread, plug-in, or magnetic means for easy cleaning, maintenance, or replacement; of course, the vacuuming component 40 can also be integrally molded with the main body 10 to form a compact structure. This manual does not limit the fixing method and internal structure of the vacuuming component 40; it can be an independent modular unit or integrated into the main air duct system of the equipment.

[0092] It should be noted that the location of the cleaning port b is determined according to the installation method of the vacuum assembly 40 and the cleaning range. It can be located near the air outlet a2 side, downstream of the filter assembly 20, or between the first filter section 21 and the second filter section 22. The specific location depends on the airflow organization and cleaning requirements. The shape of the cleaning port b can be circular, square, or polygonal, and its size must ensure sufficient flow area so that the negative pressure airflow can effectively cover the surface of the second filter section 22.

[0093] For further information, please refer to [link / reference]. Figures 4 to 6 In this embodiment, the cleaning component 30 is installed at the cleaning port b, and an air passage gap d is provided through the cleaning component 30. The dust suction port c1 is connected to the filter air duct a through the air passage gap d, and the dust suction component 40 is also used to adsorb the dirt cleaned by the cleaning component 30 from the first filter section 21.

[0094] "The cleaning component 30 is installed at the cleaning port b." This means that the cleaning component 30 can be detachably connected by snap-fit, thread, or magnetic means, or it can be fixed in place by fasteners. The detachable structure makes it easy for users to clean or replace the cleaning component 30, improving maintenance convenience.

[0095] Understandably, the air gap d can be a through-hole, mesh, or porous structure, serving as a flow channel for the suction airflow. The specific shape and distribution of the air gap d can be set according to actual airflow requirements, and this specification does not limit this aspect in the embodiments.

[0096] Thus, the suction port c1 connects to the cleaning port b, passes through the air gap d, and connects to the filter duct a, forming a complete negative pressure flow path. When the suction assembly 40 is working, the airflow passes through the second filter section 22 and the air gap d area in sequence, and finally enters the suction port c1.

[0097] By setting the airflow path as described above, the vacuuming assembly 40 can not only adsorb fine particles on the second filter section 22, but also capture and suck up the dirt collected by the cleaning assembly 30 after the cleaning assembly 30 has cleaned the first filter section 21, thus enabling the vacuuming assembly 40 to have the dual functions of cleaning the second filter section 22 and collecting the cleaned material from the first filter section 21.

[0098] In view of the above, please refer to Figure 6 In some embodiments, the width of the air gap d is denoted as W, and its value ranges from 2mm ≤ W ≤ 20mm. This size range ensures sufficient flow area to avoid excessive airflow resistance, while also allowing the airflow to be locally concentrated, enhancing the ability to peel off attached particles.

[0099] If W is less than 2mm, the flow area is insufficient, affecting suction efficiency; if W is greater than 20mm, it may cause airflow dispersion, reducing the cleaning effect on specific areas. Understandably, the width of the air gap d can be selected based on suction power requirements, filter structure, etc., and is not limited here.

[0100] It should be noted that the second filter section 22 is usually used to intercept micron-sized particles and often uses a HEPA filter, which can achieve high-efficiency capture of particles larger than 0.3 microns through multi-layer fiber structure and fine pores.

[0101] To increase the filtration area and reduce the volume, the HEPA filter is designed with multiple continuous pleated units, with the distance between adjacent pleated units being the pleat pitch L. The width W of the airflow gap d is set to satisfy the relationship 1 / 2L≤W≤4L with respect to the pleat pitch L, so that the airflow channel can be adapted to the filter pleat structure.

[0102] By controlling W within the aforementioned proportional range related to L, the suction airflow can better match the geometric features of the second filter section 22. The airflow can extend along the pleat direction, penetrating deep between the pleats and pleat peaks, thereby acting on areas that are difficult to clean and improving the ability to remove dust accumulated in the pleats. In one example, the width W of the air gap d can be made to satisfy the relationship L≤W≤3L to further balance the suction strength and pleat distance, improving the cleaning effect between the filter pleats.

[0103] This manual does not limit the specific tilt angle, height, or cross-sectional shape of the pleated unit; it can be V-shaped, U-shaped, or wavy, etc. The specific shape can be set according to the filtration efficiency and space layout requirements.

[0104] By properly configuring the relative relationship between the width of the air gap d and the pleat of the second filter section 22, the dust collection assembly 40 can achieve deep cleaning without contacting the second filter section 22.

[0105] For details, please continue reading Figure 6 In this embodiment, the cleaning assembly 30 includes a roller brush 31 and at least one scraper assembly 32. The roller brush 31 is rotatably disposed about its axis and is at least partially in contact with the first filter section 21 for cleaning dirt from the surface of the first filter section 21 during its rotational stroke. The roller brush 31 is provided with an air passage gap d. The scraper assembly 32 is disposed on one side of the roller brush 31 for scraping dirt wrapped around the roller brush 31 off the roller brush 31.

[0106] Specifically, a portion of the roller brush 31 contacts or maintains a small gap with the surface of the first filter section 21. When the roller brush 31 rotates, the bristles or protrusions on its surface generate friction or agitation during relative movement with the first filter section 21, thereby removing dust, hair and other dirt adhering to the first filter section 21.

[0107] The roller brush 31 can be configured to rotate clockwise and counterclockwise alternately around its axis, rather than rotating continuously in one direction. By controlling the roller brush 31 to periodically rotate in both directions within a set angle range, the agitation and removal effect on the surface of the first filter section 21 can be enhanced during the reciprocating motion.

[0108] The roller brush 31 is part of the cleaning assembly 30. It has an air passage gap d on its body. The gap extends radially through the roller brush 31 and serves as a channel for the suction airflow, allowing the detached contaminants to enter the suction path through the gap under negative pressure.

[0109] In one embodiment, the scraper assembly 32 includes a scraper and a brush. The scraper is fixedly disposed, with its edge corresponding to the outer peripheral surface of the roller brush 31, forming a limiting and scraping surface. The brush is disposed on the side of the scraper facing the roller brush 31 and is in contact with or slightly attached to the surface of the roller brush 31. When the roller brush 31 rotates past the scraper assembly 32, the brush first makes interlaced contact with the bristles on the roller brush 31, disturbing and loosening embedded fine impurities. Subsequently, the scraper scrapes off the entangled hair, fibers, and other hard debris from the roller brush 31, thereby keeping the roller brush 31 clean.

[0110] The position of the scraper assembly 32 can be selected to be set on the upstream or downstream side of the roller brush 31 depending on the direction of the roller brush 31. The specific installation angle and distance can be adjusted according to the actual cleaning effect.

[0111] This manual does not limit the number or arrangement of the scraper assembly 32; it can be set on one side or configured on both sides. Through the cooperation of the roller brush 31 and the scraper assembly 32, the first filter section 21 is cleaned and the roller brush 31 itself is continuously self-cleaned to prevent clogging.

[0112] Further, please refer to Figures 7 to 8In this embodiment, a dust collection chamber e is defined between the dust collection assembly 40 and the cleaning assembly 30. The dust collection chamber e is connected to the air gap d and the dust collection port c1 and is used to collect the dirt cleaned by the scraper assembly 32.

[0113] Thus, when the cleaning component 30 is working, the roller brush 31 rotates to clean the first filter section 21, and the scraper assembly 32 simultaneously scrapes off the hair, dust and other impurities wrapped around the roller brush 31. The detached dirt falls directly into the dust collection chamber e for temporary storage.

[0114] At this time, while the cleaning component 30 is working, the dust collection component 40 can be temporarily not working or maintain low power operation to avoid reducing adsorption efficiency due to misalignment of the airflow channel caused by the air gap d rotating with the roller brush 31.

[0115] In one example, the cleaning assembly 30 and the vacuuming assembly 40 can operate alternately. Specifically, after the cleaning assembly 30 completes a cleaning cycle and stops rotating, the air gap d on the roller brush 31 is stationary, aligned with the filter duct a and the dust collection chamber e, forming a continuous passage. At this time, the vacuuming assembly 40 is activated, and the negative pressure airflow enters through the suction port c1, passes sequentially through the dust collection chamber e and the aligned air gap d, and extends to the area of ​​the second filter section 22. This allows the vacuuming assembly 40 to suck up the temporarily stored dirt in the dust collection chamber e and transport it to the final dust collection unit of the vacuuming assembly 40, while also cleaning the second filter section 22.

[0116] It is understandable that in other examples, the cleaning component 30 and the vacuuming component 40 may also operate at the same power to improve filter cleaning efficiency, which is not limited here.

[0117] Furthermore, to improve the storage efficiency of dirt in the dust collection chamber e and prevent it from being dispersed during suction, please refer to... Figure 4 In this embodiment, the air handling equipment 100 further includes a pressing part 33 that is movably disposed along the axial direction of the roller brush 31. The pressing part 33 is disposed in the dust collection chamber e and is used to compress the dirt located in the dust collection chamber e to the bottom of the dust collection chamber e during its stroke toward the bottom wall of the dust collection chamber e, so as to compress the dirt such as dust and hair that fall into the chamber into a dense state, reduce the space occupied, and increase the dust collection capacity.

[0118] The driving method of the lower pressure section 33 is not limited; it can use a push rod, cam, or linkage structure to achieve linear motion, or it can achieve automatic reset through an elastic component. Its cross-sectional shape is adapted to the dust collection chamber e to ensure uniform pressure distribution.

[0119] This manual does not limit the specific structure, stroke length and installation position of the pressing part 33, and can be flexibly adjusted according to the size of the dust collection chamber e and the type of dirt.

[0120] In order to achieve dust collection from the second filter section 22, the specific structure of the dust collection assembly 40 will now be described.

[0121] Please see Figure 2 , Figure 7 and Figure 8 In one specific embodiment, the dust collection assembly 40 includes a housing 41, on which a dust collection port c1, an exhaust port c2, and a dust collection channel c connecting the two are provided. The dust collection port c1 is connected to the filter duct a through a cleaning port b on the main body 10, so that negative pressure can be applied to the second filter section 22 and the cleaning area; the exhaust port c2 is used to discharge the purified airflow to the outside of the dust collection assembly 40, which can be directly connected to the outside of the device or connected to the downstream of the main air duct. The dust collection channel c connects the dust collection port c1 and the exhaust port c2 inside the housing 41, forming a complete internal air passage.

[0122] It should be noted that the "cleaning area" refers to the area within the filter duct a that is acted upon by the cleaning component 30, including the space covered by the first filter section 21, the roller brush 31, the scraper assembly 32, and other components when they are working. It is the area where mechanical cleaning and vacuuming work together.

[0123] "Downstream of the main air duct" refers to the airflow path section within the internal filtration duct a of the air handling unit 100, located after the second filter section 22. This is the channel area through which the airflow passes after purification by the second filter section 22, and its end connects to the outlet a2. In one example, the exhaust outlet c2 in the dust collection assembly 40 can directly lead to the outside of the unit. In another example, the exhaust outlet c2 can be connected downstream of the main air duct, allowing the airflow discharged from the dust collection assembly 40 to re-enter the main airflow path of the unit, avoiding direct external discharge that would waste space or cause airflow interference.

[0124] The housing 41 is equipped with a suction fan 42, which can be a centrifugal fan, an axial fan or a cross-flow fan. Its installation position corresponds to the airflow path of the dust collection channel c. It is used to generate negative pressure to drive the external airflow to enter from the dust collection port c1, pass through the dust collection channel c and be discharged from the exhaust port c2.

[0125] This manual does not limit the specific shape and material of the housing 41, and the type, power and installation method of the suction fan 42 can also be selected according to the actual air volume requirements.

[0126] It should be noted that the start and stop of the suction fan 42 can be automatically controlled by the equipment control system according to the cleaning cycle, or it can be operated manually.

[0127] A dust collection bag 43 is installed at the air outlet of the suction channel c. The dust collection bag 43 is detachably installed at the end of the channel to intercept and collect particulate matter such as dust and hair carried by the airflow. The dust collection bag 43 is made of breathable filter material, allowing air to pass through while trapping solid impurities. When the accumulated dust reaches a certain amount, it can be removed for cleaning or replacement. The dust collection bag 43 is fixed to the air outlet using a snap-fit, elastic clamp, or plug-in structure.

[0128] Further, please refer to Figure 7 The housing 41 has a first sidewall 411 facing the cleaning port b, and a suction port c1 is provided on the first sidewall 411. The first sidewall 411 at least partially forms an air guide surface 4111, which is inclined in the direction close to the suction port c1 toward the direction away from the cleaning port b, thereby forming a gradually expanding or deflecting airflow structure.

[0129] By using an inclined air guide surface 4111, the airflow entering from the cleaning port b can be smoothly guided to the suction port c1, allowing the airflow to flow into the suction port c1 more evenly, avoiding eddies and pressure loss, and improving suction efficiency.

[0130] This manual does not limit the specific shape, tilt angle or extension range of the air guide surface 4111, and can be optimized according to the structure of the housing 41 and the internal flow field requirements.

[0131] It should be noted that the air guide surface 4111 can be integrally formed into the housing 41, or it can be achieved by adding an additional air guide plate.

[0132] Furthermore, to prevent the dust collection bag 43 from deforming under negative pressure and clogging the air inlet a1 of the suction fan 42, please refer to... Figure 8 In this embodiment, the exhaust port of the suction fan 42 is located adjacent to the dust suction channel c. The dust suction assembly 40 also includes an isolation part 44, which is disposed between the dust collection bag 43 and the suction port of the suction fan 42 and fixed inside the housing 41 to prevent the dust collection bag 43 from sticking to or blocking the air inlet a1 of the suction fan 42 during the suction process.

[0133] It should be noted that the isolation section 44 can be a permeable structure such as a metal mesh cover, plastic grille, or perforated plate, or it can be a non-permeable baffle or bracket, as long as it can form an effective isolation space and ensure that the airflow at the suction port of the suction fan 42 is not blocked. This specification does not limit the specific shape and structure of the isolation section 44, and it can be selected according to the internal layout and airflow requirements.

[0134] Understandably, the isolation section 44 has a certain rigidity and can be fixed to the housing 41, without changing as the dust collection bag 43 is disassembled or assembled. When the dust collection bag 43 undergoes local deformation due to negative pressure, the isolation section 44 can restrict its range of motion and prevent it from directly contacting the suction fan 42.

[0135] Furthermore, to prevent the dirt accumulated in the dust bag 43 from backflowing or falling off due to gravity or external airflow disturbance when the dust collection component 40 is stopped, in this embodiment, a one-way valve (not shown) is provided at the inlet of the dust bag 43. The one-way valve is used to unidirectionally guide the airflow from the air inlet port of the dust collection channel c to the air outlet port of the dust collection channel c.

[0136] Specifically, when the suction fan 42 is running, the airflow flows from the air inlet port of the dust collection channel c to the air outlet port. This airflow direction pushes the one-way valve to open, allowing the airflow carrying dirt to smoothly enter the dust collection bag 43 for collection. When the suction fan 42 stops working and the airflow disappears, the one-way valve automatically closes under its own gravity, elastic reset structure or reverse pressure difference, blocking the inlet of the dust collection bag 43, thereby preventing dust, hair and other pollutants in the bag from escaping from the inlet due to vibration or external airflow.

[0137] One-way valves can be made of elastic flaps, tongue structures, umbrella diaphragms or ball valve assemblies. This manual does not limit the specific form and driving method of the one-way valve, as long as it can be opened when the airflow is in the forward direction and closed when the airflow is reversed or there is no airflow.

[0138] To protect the internal structure of the suction fan 42 and ensure the cleanliness of the exhaust airflow, please refer to [link / reference needed]. Figure 8 In this embodiment, a third filter 45 is provided at the suction port of the suction fan 42 to intercept fine particles that may still escape after passing through the dust collection bag 43 or the suction channel c, and prevent them from entering the interior of the suction fan 42.

[0139] The third filter section 45 can be a metal mesh, filter cotton, or fine-pore filter screen, and is installed at the front end of the air inlet a1 of the suction fan 42 to prevent dust from entering the motor bearing or impeller area, reduce wear, and extend the service life of the suction fan 42.

[0140] Please see Figure 2 A fourth filter section 46 is provided at the air outlet of the suction fan 42 to perform end-of-line purification of the exhaust airflow, further removing any particles that may be carried, so that the exhaust air is as clean as possible.

[0141] The fourth filtration unit 46 may use an activated carbon filter layer, a pre-filter, or an antibacterial coating material, configured according to the air quality requirements of the usage environment.

[0142] The third filter section 45 and the fourth filter section 46 can be provided independently or simultaneously. Both can be detachable or washable. The material, mesh size, thickness, and number of layers of the filter sections can be adjusted according to actual filtration needs; this specification does not limit this aspect in the embodiments.

[0143] In order to reduce the noise of the dust collection component 40 during operation, in this embodiment, a noise reduction device (not shown) is provided between the exhaust port of the fan 42 and the exhaust outlet c2. The noise reduction device is used to absorb, reflect or block the transmission of noise.

[0144] Noise reduction devices can use porous sound-absorbing materials, such as foam, glass wool, sound-absorbing sponge or fiber felt, which consume sound energy through the micropores inside the material and reduce mid-to-high frequency noise.

[0145] The installation method of the noise reduction device is not limited; it can be glued, snap-fitted, or integrally molded inside the housing 41. This manual does not limit the specific form, material, or arrangement of the noise reduction device, and its configuration can be optimized according to the noise characteristics of the suction fan 42 and the overall spatial layout.

[0146] Please see Figure 9 In some embodiments, a flow guiding structure is provided between the exhaust port of the suction fan 42 and the exhaust outlet c2, and the flow guiding structure includes a volute 47.

[0147] The inner wall of the volute 47 is involute or spiral, which can gradually guide the high-speed airflow discharged by the suction fan 42 to the direction of the exhaust port c2, realize the smooth turning and diffusion of the airflow, reduce eddies and resistance, thereby improving the aerodynamic efficiency of the dust collection component 40, enhancing the suction capacity, and reducing operating noise.

[0148] Furthermore, based on one or more of the above embodiments, the dust collection component 40 may be disposed on the outside of the main body 10.

[0149] This design allows users to directly disassemble and install the filter, facilitating cleaning or replacement without opening the internal structure of the main body 10. Simultaneously, this configuration saves space in the filter duct a, reducing assembly complexity. Specifically, the filter channel, cleaning port b, and suction port c1 are sequentially connected from the inside out, forming a smooth path for clean airflow.

[0150] The external location of the vacuuming assembly 40 can be set on the side, top, or back of the main body 10, depending on actual needs. This specification does not limit its specific installation location or fixing method. In one example, the vacuuming assembly 40 can be installed on the outside of the main body 10 in the form of a base station.

[0151] Furthermore, to expand the versatility and space utilization of the air handling unit 100, based on the above-mentioned solution, please refer to [link / reference needed]. Figure 10 In some embodiments, the height difference between the main body 10 and the vacuuming assembly 40 is configured to form a step between them. The step can serve as a support surface for a pet's activity area, for example, it can be used as a cat playmat after being padded, allowing pets to rest and relax. The planar dimensions of the step are sufficient to accommodate small pets lying down, and its height conforms to the pet's climbing habits.

[0152] The height difference between the main body 10 and the dust collection component 40 can be achieved by adjusting the installation position or structural dimensions, without limiting the specific difference.

[0153] Furthermore, the vacuuming assembly 40 is also equipped with a feeding device 50 and / or a water device 60 for holding pet food or drinking water. The feeding device 50 and water device 60 can be detachable containers for easy cleaning and replenishment. Their installation location is on the outer surface or top of the vacuuming assembly 40, with a stable structure to prevent tipping. By combining pet care functions with air purification equipment, the number of household appliances is reduced, saving space.

[0154] Furthermore, a support pad 70 is provided on the top of the main body 10. The support pad 70 can be made of soft, wear-resistant material and can also be used as a cat crawling mat or pet resting platform. The support pad 70 is removable and washable, and is fixed to the top of the main body 10 by clips, Velcro, or straps to prevent slippage. It can be removed when not needed without affecting the normal operation of the equipment.

[0155] Based on any of the above embodiments, please refer to Figure 11 In this embodiment, the air handling device 100 further includes a rotary drive mechanism 80, which is connected to the filter assembly 20 and is used to drive the filter assembly 20 to rotate around its axis.

[0156] Thus, by configuring the filter assembly 20 to rotate, each area of ​​its surface is sequentially exposed to the incoming airflow during rotation, preventing contaminants from accumulating in a fixed area and extending its overall service life. The rotation can be a continuous, uniform rotation or a periodic, step-like rotation. Furthermore, the rotation of the filter assembly 20 allows the cleaning assembly 30 and the vacuuming assembly 40 to perform comprehensive cleaning of the filter assembly 20, thereby improving the filter's cleaning effectiveness.

[0157] It is understood that in other embodiments, the cleaning component 30 and the vacuuming component 40 may be configured to rotate along the outer periphery of the filter component 20, thereby achieving all-round cleaning of the filter component 20, which is not limited here.

[0158] The rotary drive mechanism 80 can adopt a gear transmission structure, such as a motor driving a small gear that meshes with a large ring gear arranged circumferentially on the filter assembly 20. Power is transmitted through gear meshing to achieve smooth rotation. Of course, other transmission methods such as belt drive, friction wheel drive, or direct drive motor can also be used, and this specification does not limit the embodiments thereto.

[0159] When the cleaning assembly 30 is equipped with the roller brush 31, the rotation direction of the filter assembly 20 can be set to be opposite to the rotation direction of the roller brush 31, and the two form a reverse shearing motion. In this state, the relative linear velocity between the surface of the filter assembly 20 and the bristles of the roller brush 31 increases, which can improve the ability to remove dirt such as dust and hair attached to the first filter section 21.

[0160] The installation position of the rotary drive mechanism 80 is not limited; it can be located on the top, bottom, or periphery of the filter assembly 20, as long as power transmission can be achieved. The rotation axis of the filter assembly 20 can be arranged vertically or horizontally to adapt to different installation postures.

[0161] To clarify the specific application of the air handling equipment 100 described in this specification, one embodiment is an air purifier. This air purifier has an air inlet a1, an air outlet a2, and an internal filtration duct a. A filter assembly 20 is disposed in the duct and includes a first filter section 21 and a second filter section 22 arranged sequentially along the airflow direction for graded filtration of particulate pollutants in the air. A cleaning assembly 30 is used to clean large particles such as dust and hair from the surface of the first filter section 21, and a dust collection assembly 40 is used to adsorb fine particles from the second filter section 22, thereby achieving automatic cleaning of the internal filtration system of the equipment.

[0162] The filter assembly 20 can be fixedly installed or disassembled and replaced. The rotary drive mechanism 80 can drive the filter assembly 20 to rotate, thereby improving the uniformity of filtration and cleaning efficiency.

[0163] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An air handling unit (100), characterized in that, include: The main body (10) has an air inlet (a1), an air outlet (a2), and a filter duct (a) connecting the air inlet (a1) and the air outlet (a2); The filter assembly (20) includes a plurality of filter sections disposed on the filter duct (a), wherein the plurality of filter sections include at least a first filter section (21) and a second filter section (22) disposed sequentially at intervals from the air inlet (a1) to the air outlet (a2); Cleaning component (30) for cleaning dirt from the first filter section (21); and, A vacuuming assembly (40) is used to at least adsorb and clean dirt from the second filter section (22).

2. The air handling equipment (100) as described in claim 1, characterized in that, The main body (10) is also provided with a cleaning port (b) that is connected to the filter duct (a); The dust collection component (40) is disposed on the main body (10), and the dust collection component (40) has a dust collection port (c1), which is connected to the filter air duct (a) through the cleaning port (b).

3. The air handling equipment (100) as described in claim 2, characterized in that, The cleaning component (30) is installed at the cleaning port (b), and the cleaning component (30) is provided with an air passage gap (d); The suction port (c1) is connected to the filter duct (a) through the air gap (d), and the suction assembly (40) is also used to adsorb the dirt cleaned by the cleaning assembly (30) from the first filter (21).

4. The air handling equipment (100) as described in claim 3, characterized in that, The width dimension of the air gap (d) is W, where: 2mm≤W≤20mm; and / or, The second filter section (22) includes a plurality of pleated units connected sequentially in the width direction of the air gap (d), and the pleat distance between each two adjacent pleated units is L, 1 / 2L≤W≤4L.

5. The air handling equipment (100) as described in claim 3, characterized in that, The cleaning component (30) includes: A roller brush (31), rotatably disposed about its axis and at least partially in contact with the first filter section (21), is used to clean dirt from the surface of the first filter section (21) during its rotational stroke. The roller brush (31) is provided with the air passage gap (d); and, At least one scraper assembly (32) is provided on one side of the roller brush (31) for scraping off dirt wrapped around the roller brush (31).

6. The air handling equipment (100) as described in claim 5, characterized in that, A dust collection chamber (e) is defined between the dust collection assembly (40) and the cleaning assembly (30). The dust collection chamber (e) is connected to the air passage gap (d) and the dust suction port (c1) and is used to collect the dirt cleaned by the two scraper assemblies (32).

7. The air handling equipment (100) as claimed in claim 6, characterized in that, The air handling equipment (100) further includes a pressing part (33) movably disposed along the axial direction of the roller brush (31), the pressing part (33) being disposed in the dust collection chamber (e) for compressing the dirt located in the dust collection chamber (e) to the bottom of the dust collection chamber (e) during its stroke toward the bottom wall of the dust collection chamber (e).

8. The air handling equipment (100) as claimed in claim 2, characterized in that, The vacuuming assembly (40) includes: The housing (41) is provided with the dust inlet (c1), the exhaust outlet (c2), and the dust suction channel (c) connected to the dust inlet (c1) and the exhaust outlet (c2); A suction fan (42), disposed within the housing (41), is used to drive airflow from the suction port (c1) through the suction channel (c) toward the exhaust port (c2); and, A dust collection bag (43) is provided at the air outlet of the suction channel (c) for collecting dirt discharged from the air outlet of the suction channel (c).

9. The air handling equipment (100) as claimed in claim 8, characterized in that, The housing (41) has a first sidewall (411) facing the cleaning port (b), and the first sidewall (411) is provided with the suction port (c1); The first sidewall (411) at least partially forms an air guide surface (4111), which is inclined in a direction away from the cleaning port (b) in the direction close to the dust inlet (c1).

10. The air handling apparatus (100) as claimed in claim 8, characterized in that, The suction fan (42) is located near the air outlet of the suction channel (c); The dust collection assembly (40) further includes an isolation section (44), which is disposed between the dust collection bag (43) and the suction port of the fan (42) to isolate the dust collection bag (43) from the suction port of the fan (42).

11. The air handling equipment (100) as claimed in claim 8, characterized in that, A one-way valve is provided at the inlet of the dust collection bag (43), which is used to unidirectionally guide the airflow from the air inlet port of the dust collection channel (c) to the air outlet port of the dust collection channel (c).

12. The air handling equipment (100) as claimed in claim 8, characterized in that, The suction port of the suction fan (42) is provided with a third filter section (45); and / or, The exhaust port of the suction fan (42) is provided with a fourth filter (46).

13. The air handling equipment (100) as claimed in claim 8, characterized in that, A noise reduction device is provided between the exhaust port of the suction fan (42) and the exhaust outlet (c2).

14. The air handling equipment (100) as claimed in claim 8, characterized in that, A flow guiding structure is provided between the exhaust port of the suction fan (42) and the exhaust outlet (c2), and the flow guiding structure includes a volute (47).

15. The air handling equipment (100) as claimed in claim 1, characterized in that, The vacuuming assembly (40) is disposed on the outside of the main body (10).

16. The air handling equipment (100) as claimed in claim 1, characterized in that, The height difference between the main body (10) and the vacuuming assembly (40) is configured to form a step between the main body (10) and the vacuuming assembly (40); and / or, The vacuuming assembly (40) is also provided with a feeding device (50) and / or a water feeding device (60); and / or, The top of the main body (10) is provided with a support pad (70).

17. The air handling equipment (100) as claimed in claim 1, characterized in that, The air handling unit (100) further includes a rotary drive mechanism (80), which is connected to the filter assembly (20) and is used to drive the filter assembly (20) to rotate around its axis.

18. The air handling equipment (100) as claimed in claim 1, characterized in that, The air handling equipment (100) includes an air purifier.

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