Air purifier

Abstract

The application relates to the air purification technical field and discloses an air purifier. The air purifier comprises a shell, an upper panel, an air outlet and a water injection port, a fan box, a wind guide cylinder, a flow guide part, a water tank, a water curtain generating unit, a water flow path and an air flow path. The fan box is located in the shell and comprises the wind guide cylinder and the flow guide part. The wind guide cylinder contains a fan. The flow guide part is used for guiding water flow. The water tank is located below the fan box and comprises an air inlet and an air outlet. The water curtain generating unit is located in the water tank and is used for forming a water curtain above the water tank. The water flow path and the air flow path of the air purifier are independent and the flow directions are opposite. Water flow in the water flow path is injected from the water injection port, flows downwards through the flow guide part and the water tank, and then forms a water curtain through the water curtain generating unit. Air flow in the air flow path enters the air inlet of the water tank, flows upwards after passing through the water curtain, and is discharged upwards from the air outlet of the water tank through the wind guide cylinder. The water flow path and the air flow path of the application do not affect each other, the operation is simple, and the purification efficiency is high.

Description

[0001] This application claims priority to Chinese Patent Application No. 202220922004.5, filed on April 20, 2022, entitled "Water Washing and Purification Device, Air Conditioner", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of air conditioner technology, for example, to an air purifier. Background Technology

[0003] As people become increasingly health-conscious, they are paying more and more attention to air quality in their indoor environments, beyond basic cooling and heating needs. To improve air quality, the common practice is to install filters in air circulation systems to remove airborne particles. However, harmful gas molecules in the air are difficult to remove, and cleaning or replacing filters can easily cause secondary pollution. Therefore, people have begun to try using circulating water for "water-washing purification" of the air.

[0004] In related technologies, a water-washing air purification device and an air conditioner are disclosed, including a water tank, a barrel body with an opening at the top and a lid covering the opening, the side wall of the barrel body being provided with a dirty air inlet and a purified air outlet; a water curtain assembly, disposed in the water tank and used to form a water curtain in the water tank, the water curtain being used to wash and purify the air flowing from the dirty air inlet to the purified air outlet; the purified air outlet being located between the water curtain and the lid, and the purified air outlet being disposed close to the water curtain.

[0005] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0006] In related technologies, water-washing air purification devices have both dirty air and purified air outlets located on the side wall, which can easily lead to airflow turbulence and affect the purification effect. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides an air purifier, which includes a housing, a fan box, a water tank, and a water curtain generating unit. The housing includes a top panel with an air outlet and a water inlet. The fan box is located inside the housing and includes an air guide tube and a flow guide section. The air guide tube houses a fan, and the flow guide section is used to guide water flow. The water tank is located below the fan box and includes an air inlet and an air outlet. The water curtain generating unit is located inside the water tank and is used to form a water curtain above the interior of the water tank. The water flow path and air flow path of the air purifier are independent and flow in opposite directions. The water flow in the water flow path is injected through the water inlet, flows downward through the flow guide section and the water tank, and then forms a water curtain through the water curtain generating unit. The air flow in the air flow path enters through the air inlet of the water tank, passes upward through the water curtain, flows upward through the air outlet of the water tank, and is discharged upward from the top panel through the air guide tube. This application breaks with conventional thinking about how to add water to air purifiers by injecting water downwards through the water inlet on the top panel, making the water filling operation simpler and faster. The airflow path and water flow path are independent of each other. The airflow passes through the water curtain from bottom to top, and the purified airflow is discharged upwards from the air outlet on the top panel. In this way, the airflow of the air purifier can avoid mutual interference between the air intake and air exhaust, improve the purification effect, and solve the problem of low purification efficiency of air purifiers.

[0009] In some embodiments, the air purifier includes a housing, a fan box, a water tank, and a water curtain generating unit. The housing includes a top panel with an air outlet and a water inlet. The fan box is located inside the housing and includes an air guide tube and a flow guide section. The air guide tube houses a fan, and the flow guide section is used to guide water flow. The water tank is located below the fan box and includes an air inlet and an air outlet. The water curtain generating unit is located inside the water tank and is used to form a water curtain above the interior of the water tank. The water flow path and airflow path of the air purifier are independent and flow in opposite directions. The water flow path is injected through the water inlet, flows downward through the flow guide section and the water tank, and then forms a water curtain through the water curtain generating unit. The airflow path enters through the air inlet of the water tank, passes through the water curtain, flows upward through the air outlet of the water tank, and is discharged upward from the top panel through the air guide tube.

[0010] In some alternative embodiments, the air purifier further includes a fan bracket. The fan bracket is fixed inside the housing and located above the fan box. The fan bracket includes a tray and a first air guide hole communicating with the tray. The tray is located below the water inlet, and an air outlet channel for airflow is formed between the tray and the inner side wall of the housing. The first air guide hole communicates with the air guide portion. The water tank is located below the air guide tube. Water can be injected into the tray through the water inlet and flow into the water tank through the first air guide hole and the air guide portion. Airflow can flow upward from the water tank through the air guide tube and the air outlet channel, and then be discharged from the air outlet on the upper panel.

[0011] In some optional embodiments, an air inlet window is provided on the side wall of the housing, an air inlet is provided on the side wall of the water tank, and an air outlet is provided on the top of the water tank. The air inlet of the water tank is connected to the air inlet window on the side wall of the housing. Airflow enters through the air inlet window of the housing, enters the water tank through the air inlet of the water tank, and after being purified in the water tank, the airflow flows upward from the air outlet of the water tank, passes through the air guide tube and the air outlet channel, and then flows out from the air outlet of the housing.

[0012] In some alternative embodiments, the air purifier also includes a water tank base, which is fixed inside the housing, and the water tank is detachably mounted on the water tank base.

[0013] In some alternative embodiments, the water tank base includes a support plate and a support platform. The support plate is vertically disposed in the lower part of the housing and is vertically connected to the fan box; the support platform is fixed to the support plate, and the support platform and the support plate together enclose a first accommodating space for accommodating the water tank.

[0014] In some optional embodiments, the support plate includes a support plate body, a transfer chamber, and an air guide. The bottom of the support plate body is fixed to the bottom wall of the housing, and an air inlet space is left between the support plate body and the side wall of the housing, which communicates with the air inlet window; the transfer chamber is located at the top of the support plate body, and includes a water inlet and a drain outlet. The water inlet communicates with the air guide, and the drain outlet communicates with the water tank, so that the water flows from the air guide, through the transfer chamber, and then into the water tank; the air guide corresponds to the air inlet of the water tank, so that the air inlet space and the water tank are connected through the air guide and the air inlet of the water tank.

[0015] In some alternative embodiments, the water tank also includes a flow guide, through which the drain outlet of the transfer chamber passes and extends into the water tank.

[0016] In some alternative embodiments, the air purifier further includes a water-blocking mechanism, corresponding to the air inlet and / or guide port of the water tank, disposed inside the water tank to prevent water in the water tank from splashing out from the air inlet and / or guide port of the water tank.

[0017] In some alternative embodiments, the water-blocking mechanism includes a first water-blocking plate and a second water-blocking plate. The outer ring of the first water-blocking plate is linearly connected to the side wall of the water tank and extends upward beyond the air inlet and guide port of the water tank, and the inner ring of the first water-blocking plate forms an air outlet; the second water-blocking plate extends downward from the inner edge of the first water-blocking plate and extends beyond the air outlet.

[0018] In some alternative embodiments, the air purifier further includes a water curtain generating unit located inside the water tank, which is used to form a water curtain above the inside of the water tank. The water curtain is higher than the air inlet of the water tank, and the water jet from the water curtain generating unit sprays onto the second baffle.

[0019] The air purifier provided in this embodiment can achieve the following technical effects:

[0020] The air purifier includes a housing, a fan box, a water tank, and a water curtain generating unit. The housing includes a top panel with an air outlet and a water inlet. The fan box is located inside the housing and includes an air guide tube and a flow guide section. The air guide tube houses the fan, and the flow guide section directs water flow. The water tank is located below the fan box and includes an air inlet and an air outlet. The water curtain generating unit is located inside the water tank and forms a water curtain above the interior of the tank. The water flow path and airflow path of the air purifier are independent and flow in opposite directions. Water in the water flow path is injected through the water inlet, flows downwards through the flow guide section and the water tank, and then forms a water curtain through the water curtain generating unit. Airflow in the airflow path enters through the air inlet of the water tank, passes upwards through the water curtain, flows upwards through the air outlet of the water tank, and is discharged upwards from the top panel via the air guide tube. This application breaks with conventional thinking about how to add water to air purifiers by injecting water downwards through the water inlet on the top panel, making the water filling operation simpler and faster. The airflow path and water flow path are independent of each other. The airflow passes through the water curtain from bottom to top, and the purified airflow is discharged upwards from the air outlet on the top panel. In this way, the airflow between the intake and exhaust of the air purifier can be avoided, which improves the purification efficiency and solves the problem of poor purification effect of air purifiers.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of an air purifier provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of another air purifier provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of an air purifier after part of its housing has been removed, according to an embodiment of this disclosure.

[0026] Figure 4 This is a schematic diagram of the structure of the fan bracket of the air purifier provided in the embodiments of this disclosure;

[0027] Figure 5 This is a schematic diagram of the structure of a fan in an air purifier provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of the structure of an air purifier fan bracket and fan box provided in an embodiment of the present disclosure;

[0029] Figure 7 This is a schematic diagram of the structure of the side panel and fan box of the air purifier provided in the embodiments of this disclosure;

[0030] Figure 8 This is a schematic diagram of the structure of the water tank base of the air purifier provided in the embodiments of this disclosure;

[0031] Figure 9 This is a partially enlarged schematic diagram of the water tank base of an air purifier provided in an embodiment of this disclosure;

[0032] Figure 10 This is a schematic diagram of the structure of the air purifier removal fan box provided in the embodiments of this disclosure;

[0033] Figure 11 This is a schematic diagram of the structure of the air purifier removal fan box and purification module provided in the embodiments of this disclosure;

[0034] Figure 12 This is a schematic diagram of the water-blocking structure and purification module provided in the embodiments of this disclosure;

[0035] Figure 13 This is a schematic diagram of the airflow path of an air purifier provided in an embodiment of this disclosure;

[0036] Figure 14 This is a schematic diagram of the water flow path of the air purifier provided in the embodiments of this disclosure.

[0037] Figure label:

[0038] 100: Housing; 110: Side plate; 111: Air inlet; 112: Fixing part; 130: Top panel; 200: Water tank; 210: Water curtain generating unit; 220: Water blocking mechanism; 300: Fan box; 311: Motor; 312: Connecting plate; 313: Blade; 314: Air guide ring; 320: Fan bracket; 321: Tray; 322: Support leg; 324: Guide pipe; 325: Panel bracket; 326: Display panel; 330: Air guide tube; 331: Support column; 332: Snap-fit ​​edge; 400: Water tank base; 410: Support plate; 420: Support platform; 421: Drain hole; 422: Guide strip; 500: Purification module; 700: Negative ion generator; 800: Filter assembly. Detailed Implementation

[0039] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0040] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0041] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0042] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0043] Unless otherwise stated, the term "multiple" means two or more.

[0044] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0045] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0047] Combination Figure 1-13 As shown, this disclosure provides an air purifier.

[0048] The air purifier provided in this embodiment includes a housing 100, a fan box 300, a water tank 200, and a water curtain generating unit 210. The housing 100 includes a top panel 130, which has an air outlet and a water inlet. A fan box 300 is located inside the housing 100. The fan box 300 includes an air guide 330 and a flow guide section. The air guide 330 houses the fan, and the flow guide section is used to guide water flow. A water tank 200 is located below the fan box 300. The water tank 200 includes an air inlet and an air outlet. A water curtain generating unit 210 is located inside the water tank 200 and is used to form a water curtain above the interior of the water tank 200. The water flow path and air flow path of the air purifier are independent and flow in opposite directions. The water flow path is injected through the water inlet, flows downward through the flow guide section and the water tank 200, and then forms a water curtain through the water curtain generating unit 210. The air flow path enters through the air inlet of the water tank, passes through the water curtain, and flows upward through the air outlet of the water tank 200. It is then discharged upward from the top panel 130 through the air guide 330.

[0049] When the water tank 200 inside the air purifier is low on water, water is added through the water inlet on the top panel 130, allowing the water to flow downwards through the guide section into the water tank 200. When the user needs air purification, the fan and water curtain generating unit 210 are activated, and the airflow enters the water tank 200 through the housing side of the air purifier. The airflow passes through the water curtain above the water tank 200 for purification, and the purified airflow flows upwards, passes through the air guide duct, and is discharged from the air outlet on the top panel 130 to purify the surrounding environment. This layout not only saves space and simplifies operation, but also avoids turbulence in the intake and exhaust airflow, improving purification efficiency.

[0050] Understandably, the fan box 300 is used to power the airflow in the water tank 200. The air inlet of the fan box 300 is connected to the air outlet of the water tank 200. The fan drives the air to flow from the air inlet of the fan box 300 to the air outlet of the fan box 300, thereby generating negative pressure at the air outlet of the water tank 200, which further drives the air in the water tank 200 to flow from the air inlet of the water tank 200 to the air outlet of the water tank 200.

[0051] The fan housing 300 is positioned above the water tank 200, near the water tank 200's air outlet. This simplifies the air purifier's structure and reduces its cost. The air outlet of the fan housing 300 is located at the top of the fan housing 300, through which water can be added to the water tank 200. This design allows the fan housing 300's air outlet to function as both an air outlet and a water inlet, simplifying the air purifier's structure and making it easier to use.

[0052] The upper panel 130 has a through hole, and the display panel 326 is located in the through hole. A gap is left between the display panel 326 and the upper panel 130 to serve as a water inlet, allowing water to flow into the housing 100 through the water inlet. The upper panel 130 is inclined, with the inclination direction from the upper panel 130 towards the water inlet and downwards. The gap between the display panel 326 and the upper panel 130 of this application, which serves as a water inlet, allows water to flow into the housing 100 through the water inlet, realizing a top-filling water method that is easy to operate. At the same time, the inclined upper panel 130 can avoid the problem of water accumulating at the water inlet.

[0053] Specifically, when adding water to the air purifier, water is poured onto the display panel 326, flows along the display panel 326 into the housing 100, and then enters the water tank along the flow path within the housing 100. This design allows the panel to be rinsed while adding water, and the method of adding water along the panel differs from conventional water filling methods. It is easy to operate, prevents water accumulation, and dispels the misconception that the panel cannot be immersed in water, making the air purifier more technologically advanced and futuristic.

[0054] Optionally, the upper panel 130 includes a panel body and a grille frame. The outer edge of the panel body is detachably connected to the housing 100, and a through hole is formed in the inner edge of the panel body; the grille frame is located between the outer edge and the inner edge so that the panel forms a plurality of ventilation grilles.

[0055] Specifically, the display panel 326 is located on the through-hole side, forming an annular water inlet between the display panel 326 and the grille frame. The grille frame area is the air outlet area. The humidified and purified air inside the housing 100 is blown out through multiple ventilation grilles of the grille frame. In this way, the upward water inlet and upward air outlet can be carried out simultaneously without interference.

[0056] Optionally, the display panel 326 is lower than the inner edge of the upper panel 130. When water is poured in, the water first hits the display panel 326. When the water flow rate is high, water rebound is likely to occur. By positioning the display panel 326 below the upper panel 130, water can be prevented from splashing onto the outside of the air purifier.

[0057] Optionally, the display panel 326 includes a display surface and a drainage surface. The display surface provides a visual display; the drainage surface is located on the outer periphery of the display surface and is inclined downwards. The display screen of a typical air purifier is mounted on the side wall of the housing 100 or on the top side of the housing 100. The display panel 326 of this application not only provides a visual display through the display surface but also guides water flow through the arrangement of the display surface and the drainage surface, enhancing the technological appeal and practicality of the air purifier.

[0058] Optionally, the upper surface of the grille frame is curved, forming an arc-shaped notch in the upper panel 130. This allows some of the water splashing outwards when the water flow to the display screen is too strong to be collected within the housing 100 by the curved surface of the grille frame. When the water flow velocity is high, some of the water splashing onto the curved surface can flow along its curvature into the water inlet, preventing water from splashing outwards due to excessive water flow from the user.

[0059] Optionally, the grille frame includes multiple first grille strips, with the two ends of each strip connected to an inner edge and an outer edge, respectively. Each first grille strip is an arc-shaped convex strip with its opening facing downwards. In this way, the multiple first grille strips can guide water splashing onto the grille frame, while also providing an air outlet for the purified air, and are more aesthetically pleasing.

[0060] Optionally, the grid frame also includes multiple second grid strips, which are fixedly connected to the multiple first grid strips. The multiple second grid strips provide support and fixation for the grid frame, improving its stability.

[0061] Optionally, the multiple first grille strips are arranged radially from the center outwards relative to the display panel 326. Understandably, the spacing between adjacent first grille strips closer to the display panel 326 is narrower, while the spacing between adjacent first grille strips farther from the display panel 326 is wider. This prevents water splashed from the display screen onto the far end of the upper panel 130 (the side away from the display panel 326) from falling into the housing, thus preventing secondary splashing on the upper panel 130. When water splashes from the display screen onto the near end of the upper panel 130 (the side closer to the display panel 326), the water is guided back into the water inlet by the densely distributed first grille strips.

[0062] Optionally, the air purifier also includes a fan bracket 320. The fan bracket 320 is fixed inside the housing 100 and located above the fan box 300. The fan bracket 320 includes a tray 321 and a first guide hole 324 communicating with the tray 321. The tray 321 is located below the water inlet. An air outlet channel for airflow is formed between the tray 321 and the inner side wall of the housing 100. The first guide hole 324 communicates with the guide section. The water tank 200 is located below the air duct 330. Water can be injected into the tray 321 through the water inlet and flow into the water tank 200 through the first guide hole 324 and the guide section. Airflow can flow upward from the water tank 200 through the air duct 330 and the air outlet channel, and then be discharged from the air outlet of the upper panel 130.

[0063] Specifically, the fan bracket 320 includes a tray 321, legs 322, and a first guide hole 324. The top of the tray 321 has a water storage space, and the fan is fixed to the bottom of the tray 321. The legs 322 are used to fix the fan bracket. One end of the first guide hole 324 communicates with the tray 321, and the other end of the first guide hole 324 communicates with the guide section of the water tank through a guide pipe. Multiple legs 322 are used to fix the tray above the air inlet of the fan housing 300. In this way, an air outlet channel for airflow is formed through the space between the multiple legs 322, ensuring that the water flow path and the air flow path do not interfere with each other, thus improving space utilization.

[0064] Optionally, the housing 100 has an air inlet window on its side wall, the water tank 200 has an air inlet on its side wall, and the water tank 200 has an air outlet on its top. The air inlet of the water tank 200 communicates with the air inlet window on the side wall of the housing 100. Airflow enters through the air inlet window of the housing 100, then enters the water tank 200 through the air inlet. After purification in the water tank 200, the airflow flows upward through the air outlet of the water tank 200, passes through the air guide duct 330 and the air outlet channel, and then flows out through the air outlet of the housing 100. In this way, the airflow entering and exiting the air purifier can be completely separated, avoiding cross-flow of dirty air and purified air, which would affect the purification effect.

[0065] Optionally, the air purifier also includes a water tank base 400, which is fixed inside the housing 100, and the water tank 200 is detachably mounted on the water tank base 400. Specifically, the bottom of the water tank 200 is provided with a slider, the water tank base 400 is provided with a slide rail, and the water tank 200 is a drawer-shaped water tank, which can be installed and removed by pushing and pulling.

[0066] Optionally, the housing 100 is provided with a water tank 200 mounting window, and the water tank base 400 is constructed with a notch corresponding to the water tank 200 mounting window, so that the water tank 200 can be pulled out and installed in the receiving space through the water tank 200 mounting window. When it is necessary to clean or change the water in the water tank 200, the water tank 200 can be pulled out, and after cleaning, the water tank 200 can be pushed back into the receiving space through the water tank 200 mounting window. This configuration facilitates user operation.

[0067] Optionally, the water curtain air purifier also includes a negative ion generator 700, located in the fan housing 300. Negative ions are generated through the pulse oscillation circuit of the negative ion generator 700, which boosts low voltage to a DC negative high voltage via a high-voltage module. This voltage is then continuously generated by a negative DC high corona discharge at the tip of the carbon fiber, resulting in a large number of electrons emitted at high speed. These electrons cannot remain in the air for long and are immediately captured by oxygen molecules, forming negative ions. These ions can neutralize positively charged smoke and dust particles floating in the air, causing them to settle naturally. The working principle of the negative ion generator 700 is consistent with the phenomenon of negative ions being generated during thunderstorms. Negative ions are ubiquitous in nature. Thunderstorms, plant photosynthesis, and the impact of waterfalls all generate large amounts of negative ions, which explains why people feel the air is fresh during thunderstorms, in forests, and near waterfalls. The negative ion generator 700 is used to generate negative ions, and its inclusion enhances the air purification effect of the water curtain air purifier, improves air quality, and enhances the user experience.

[0068] Optionally, the water tank base 400 includes a support plate 410 and a support platform 420. The support plate 410 is vertically disposed in the lower part of the housing 100, and the support plate 410 is vertically connected to the fan box 300; the support platform 420 is fixed to the support plate 410, and the support platform 420 and the support plate 410 together enclose a first accommodating space for accommodating the water tank 200. Optionally, a drain hole 421 is opened on the support platform 420 and close to the support plate 410, and a guide strip 422 extends inward from the support plate 410 and is located below the drain hole 421.

[0069] The support plate 410 is vertically positioned so that the support platform 420 is a certain distance from the bottom of the housing 100, thereby also placing the water tank 200 a certain distance from the bottom of the housing 100. This allows the water tank 200 to be positioned at a convenient operating height. The support platform 420 is connected to the water tank 200, contacting and supporting it. The support platform 420 includes at least one horizontally positioned plane to catch water splashed from the water tank 200. A drain hole 421 is provided on the support platform 420 to drain water accumulated thereon. This arrangement allows the water tank 200 to be positioned at a suitable height, facilitating user operation and use, and also helps to drain water accumulated in the water tank base 400. A guide strip 422 is positioned below the support platform 420 corresponding to the drain hole 421. When water falls from the drain hole 421, the support plate 410 extends horizontally below the drain hole 421 to ensure contact between the water and the support plate. This allows the water discharged through the drain hole 421 to flow in an orderly manner, thereby improving the drainage effect of the water tank base 400 of the water curtain air purifier. The guide strip 422 extends inward along the support plate 410, structurally serving as a reinforcing rib of the support plate 410, thus improving the structural strength of the water tank base 400; functionally, it also provides a flow guiding function, enhancing the drainage effect of the water tank base 400. This design facilitates the processing of the water tank base 400 and improves its structural strength.

[0070] Optionally, the drain hole 421 is located near the support plate 410, and the guide strip 422 extends inward from the support plate 410 and is positioned below the drain hole 421. The guide strip 422 is positioned below the support platform 420 corresponding to the drain hole 421. When water falls from the drain hole 421, the support plate 410 extends horizontally below the drain hole 421 to ensure that the water can contact the support plate 410. This allows the water discharged through the drain hole 421 to flow in an orderly manner, thereby improving the drainage effect of the water tank base 400 of the water curtain air purifier.

[0071] Optionally, multiple guide strips 422 are provided, arranged in parallel. The drain hole 421 is relatively large while the guide strips 422 are relatively thin. Multiple guide strips 422 can cover multiple locations directly below the drain hole 421, meaning that water flowing from any location of the drain hole 421 can contact at least one support plate 410. The presence of multiple guide strips 422 allows for better drainage from the water tank 200 base. A water collection tray is used to collect water falling along the guide strips 422. The water collection tray prevents water discharged from the water tank 200 base from flowing into the environment where the water curtain air purifier is located.

[0072] Optionally, the water collection tray is removable from the housing. Since the amount of water discharged from the water tank 200 base is relatively small, the water curtain air purifier is not always operational, while the water in the collection tray continuously evaporates. The natural evaporation rate of the water in the collection tray can balance the rate of water collection, eliminating the need for manual operation. The removable design allows the collection tray to be removed and the water emptied when the natural evaporation rate is insufficient to meet the drainage requirements of the water tank 400, preventing overflow. This design enhances user convenience.

[0073] Optionally, the support plate 410 includes a support plate body, a transfer chamber, and an air guide section. The bottom of the support plate body is fixed to the bottom wall of the housing 100, and an air inlet space is left between the support plate body and the side wall of the housing 100, which communicates with the air inlet window. The transfer chamber is located at the top of the support plate body and includes a water inlet and a drain outlet. The water inlet communicates with the air guide section, and the drain outlet communicates with the water tank, so that water flows from the air guide section, through the transfer chamber, and then into the water tank 200. The air guide section corresponds to the air inlet of the water tank 200, so that the air inlet space and the water tank 200 are connected through the air guide section and the air inlet of the water tank 200. In this way, compared with opening an air inlet in the middle of the side of the housing 100, setting an air inlet at the bottom of the side of the housing 100 can increase the distance between the air inlet and the air outlet, and at the same time extend the airflow channel. Thus, by adding a filter purification component in the air inlet space, the purification effect can be improved, and the different air purification needs of different users can be met. Understandably, the flow guide can be a flow guide pipe or a flow guide hole, as long as it can transport and guide the water flow.

[0074] Optionally, the water tank 200 also includes a guide port, through which the drain outlet of the transfer chamber passes and extends into the water tank 200. In this way, water can be guided from the transfer chamber into the water tank 200, and can be kept below the water curtain position to prevent the water curtain from colliding with the water flow and splashing outside the water tank 200.

[0075] Optionally, the air purifier also includes a water-blocking mechanism 220, corresponding to the air inlet and / or guide port of the water tank 200. The water-blocking mechanism 220 is disposed inside the water tank 200 to prevent water in the water tank 200 from splashing out from the air inlet and / or guide port of the water tank 200. The water-blocking mechanism 220 is a certain distance away from the air inlet of the water tank 200. On the one hand, the water baffle and the side wall where the air inlet of the water tank 200 is located form an air duct, and air enters the water tank 200 from the gap between the water baffle and the side wall where the air inlet of the water tank 200 is located, so that the air flows in a controlled and orderly manner; on the other hand, the water baffle blocks the water in the water tank 200, especially the water sprayed by the water curtain generating device, thereby preventing water in the water tank 200 from being sprayed out from the air inlet of the water tank 200. Using the air purifier provided in this embodiment, the air entering the water tank 200 is allowed to flow in an orderly manner by setting a baffle plate, and water in the water tank 200 is prevented from splashing out of the water tank from the air inlet of the water tank 200, thereby improving the water tank 200's water tightness and the air purifier's air purification effect.

[0076] Optionally, the water-blocking mechanism includes a first water-blocking plate and a second water-blocking plate. The outer ring of the first water-blocking plate is linearly connected to the side wall of the water tank 200 and extends upward beyond the air inlet and guide port of the water tank 200, and the inner ring of the first water-blocking plate forms an air outlet; the second water-blocking plate extends downward from the inner edge of the first water-blocking plate and extends beyond the air outlet.

[0077] The water-blocking structure includes a first water-blocking plate and a second water-blocking plate. The second water-blocking plate forms an air duct with the side wall where the air inlet of the water tank 200 is located. The first water-blocking plate blocks the top of the air duct, allowing air entering the water tank 200 from the air inlet to move from the bottom of the water-blocking structure towards the air outlet of the water tank 200. Water sprayed from the water curtain generating unit 210 is sprayed onto the second water-blocking plate, forming a water curtain in two parts: the first part is the water level from the water curtain generating unit 210 to the second water-blocking plate, and the second part is the water curtain falling from the second water-blocking plate to the bottom of the water tank 200. Air moves from the bottom of the water-blocking structure towards the air outlet of the water tank 200, first passing through the second part of the water curtain, entering the inner ring of the water curtain, and then passing through the first part of the water curtain before moving towards the air outlet. Equipped with a water-blocking ring, the air entering the water tank 200 passes through the water curtain twice. This allows for the effective adsorption or dissolution of airborne impurities such as lint, dust, and hair, as well as harmful gases like formaldehyde, further enhancing the air purifier's purification efficiency. Furthermore, the water-blocking ring prevents water from the water curtain or water falling into the water tank 200 from splashing out of the air inlet, improving the safety and stability of the air purifier's operation.

[0078] Optionally, the bottom of the second baffle plate is constructed with a baffle facing the water curtain generating device. This baffle serves two purposes: firstly, it guides the air entering the water tank 200, allowing for orderly airflow; secondly, as the boundary between the first and second water curtain sections, the baffle slows the downward movement of the water, causing it to temporarily accumulate at the baffle before flowing downwards evenly, thus better forming the second water curtain. This arrangement improves the water curtain generation effect of the water curtain generating unit 210, thereby enhancing the air purification effect of the air purifier.

[0079] Optionally, the air purifier also includes a water curtain generating unit 210, located inside the water tank 200, for forming a water curtain above the interior of the water tank 200. The water curtain is higher than the air inlet of the water tank 200, and the water jet from the water curtain generating unit 210 sprays onto the second baffle. In this way, when the fan is running, the airflow is drawn in through the air inlet window 111 on the side panel of the casing, enters the water tank 200 through the air inlet, passes through the water curtain for purification, and then passes through the air outlet of the water tank 200, and is then discharged from the air outlet of the upper panel 130.

[0080] Specifically, the water tank 200 has an air inlet at the bottom and an air outlet at the top of its side panel. Air enters the water tank 200 through the air inlet and exits through the air outlet. A water curtain generating unit 210 is installed inside the water tank 200 to generate a water curtain. The water curtain is a waterfall-like flow composed of multiple water streams. When the distance between the multiple water streams is relatively close, they connect with each other under the action of liquid surface tension, forming a seamless water flow. In this case, the water flow is not easily visually separated into multiple streams. The water curtain generating unit 210 pumps water from the water tank 200 to a high position and sprays it out through a single narrow spray hole or multiple spray holes spaced apart, thereby forming a water curtain. The water curtain generated by the water curtain generating unit 210 is located between the air inlet and the air outlet of the water tank 200, that is, in the airflow channel of the water tank 200. Air passing through the airflow channel and then through the water curtain is purified by adsorbing impurities such as lint, dust, and hair, while harmful gases like formaldehyde dissolve in the water. Simultaneously, the large contact area between air and water increases humidity as some water evaporates. The air purification flow path in this application involves air intake at the bottom of the air purifier, purification through the water curtain, and exhaust from the top vent. Firstly, the intake and exhaust airflows are perpendicular and far apart, avoiding turbulence and improving purification efficiency and airflow volume. Secondly, the purified air has a humidifying function; water mist in the exhaust airflow is blown upwards from the vent on the top panel 130, expanding the humidification space and enhancing the user experience.

[0081] In related technologies, the water tank 200 used to provide water flow is located in the bottom space inside the housing 100, while in this application it is located in the middle space inside the housing 100. This allows for the installation of filters or multi-functional purification components in the air intake space, enabling the airflow to undergo preliminary filtration and purification in the air intake space before entering the water tank 200 for secondary purification and humidification. This improves purification efficiency, reduces the degree of dirtiness in the water flow inside the water tank 200, and increases the utilization rate of the water stored in the water tank 200.

[0082] Optionally, the water curtain generating unit 210 includes a water-spraying component and a driving device. The upper part of the water-spraying component is provided with multiple spray holes, and the water-spraying component is rotatably arranged in the water tank; the driving device drives the water-spraying component to rotate at high speed to generate pressure, so as to cause the water inside the water-spraying component to become a vortex motion rotating around the inside, and then sprayed out from the spray holes to form a water curtain.

[0083] Understandably, in the Bernoulli effect, the greater the fluid velocity, the lower the pressure; conversely, the lower the fluid velocity, the higher the pressure. Based on the principle of Bernoulli's effect in fluid mechanics, where higher velocity results in lower pressure, a high-speed motor drives the internal water-throwing component to rotate at high speed, generating pressure changes. This causes the water inside the component to swirl around its interior, eventually being ejected from the spray nozzles.

[0084] Optionally, the water-spraying assembly includes a sleeve and a rotating shaft. The upper part of the sleeve has multiple spray holes arranged in a layered pattern. The rotating shaft is fixed in a chamber inside the sleeve, and a drive unit is electrically connected to the rotating shaft. A water tank communicates with the chamber through an opening at the bottom of the sleeve. The drive unit drives the rotating shaft to rotate, causing the sleeve to rotate at high speed, so that the water in the chamber is sprayed out from the spray holes through a vortex motion, thus forming a multi-layered water curtain. Air is filtered through these multiple layers of water curtain, completing the humidification and purification process.

[0085] Optionally, the water curtain generating unit 210 also includes a water pump. The first end of the water-spraying assembly is located at the bottom of the water tank 200, and the second end extends to the top of the water tank 200. The water pump is used to provide spray pressure for the water-spraying assembly. The water pump sends the water accumulated at the bottom of the water tank 200 to the top of the water tank 200 through the water-spraying assembly, and the water falls from the top of the water tank 200 to form a water curtain.

[0086] Optionally, the sleeve has multiple spray holes arranged at intervals. The distance between adjacent spray holes is 1-3mm. The small distance between adjacent spray holes allows the water streams sprayed from multiple holes to connect with each other under the action of liquid surface tension, forming a seamless water curtain. This arrangement can improve the air purifier's air purification effect.

[0087] Optionally, the sleeve rotates about the axis of the air outlet of the water tank 200. The water sprayed from the spray holes has a uniform horizontal motion along the tangent of the circular motion, and a uniformly accelerated vertical motion under the influence of gravity. As the spray holes undergo circular motion, the tangent of the spray holes constantly changes, resulting in a spiral line with a gradually increasing diameter from top to bottom. Water sprayed from multiple spray holes is more easily interconnected under liquid surface tension, forming a seamless water curtain. Furthermore, the water has an initial horizontal outward velocity, and the diameter of the water curtain is larger than the diameter of the circle formed by the circular motion of the water outlet. This design simplifies the structure of the water curtain generating unit 210, reduces its volume, improves the uniformity of the water curtain, and increases its range. Furthermore, it enhances the air purification effect of the air purifier.

[0088] Optionally, the water pump includes a motor 311, which drives a rotating shaft to pump and pressurize the water. The sleeve guides the water upward and sprays it out through the spray nozzles.

[0089] Optionally, the air duct 330 is vertically provided with a support column 331, and the top of the support column 331 is provided with a fixing groove. The side plate 110 of the fan box 300 extends inward and is provided with a fixing part 112, which is engaged with the fixing groove of the support column 331. The fan bracket 320 includes a tray 321 and a support leg 322. One end of the support leg 322 is fixed to the top of the support column 331 and covers the fixing groove, and the other end is fixed to the tray 321.

[0090] In this embodiment, the air purifier is used to purify the air. A vertically arranged support column 331 is provided in the air duct 330, and a fixing groove is formed at the top of the support column 331. A fixing part 112 extends inward from the side plate 110 and engages with the fixing groove at the top of the support body, thereby fixing the side plate 110. The fan bracket 320 is fixed to the support column 331 by a support leg 322, thereby fixing the fan bracket 320. Using the air purifier provided in this embodiment, the air duct is equipped with a support column 331, and the fixing groove at the top of the support column 331 simultaneously fixes both the side plate 110 and the fan bracket 320, resulting in a reasonable stress distribution and a stable structure.

[0091] Optionally, the bottom of the fan housing 300 extends upward with a snap-fit ​​edge 332, and the bottom end of the side plate 110 abuts against the inner surface of the snap-fit ​​edge 332. The side plate 110 extends inward with a fixing part 112, and the force on the side plate 110 is concentrated only through this fixing part 112. The bottom of the air duct 330 extends outward beyond the duct body and also extends upward with a snap-fit ​​edge 332. The bottom end of the side plate 110 snaps against the snap-fit ​​edge 332, which provides vertical support for the side plate 110. Simultaneously, the bottom end of the side plate 110 abuts against the inner surface of the snap-fit ​​edge 332, and a baffle provides lateral restraint to the bottom end of the side plate 110. In this case, the bottom end of the side plate 110 and the location where the fixing part 112 is provided are simultaneously fixed by the fixing of the extension of the side plate 110, restricting the displacement of the side plate 110 in both the horizontal and vertical directions. This more rational stress-bearing structure allows for better fixation of the side plate 110, further improving the structural stability of the air purifier.

[0092] Optionally, the support leg 322 is connected to the fixed column by screws. One end of the support leg 322 fits into the fixing groove on the top of the support column 331, and the screws fix one end of the support leg 322 in place, resulting in a simple structure and good fixing effect. The bolts can be removed and installed through the opening on the top of the fan box 300 for easy operation. While fixing the support leg 322 and the bolts, the side plate 110 is also fixed. This design facilitates the assembly and disassembly of the air purifier and reduces the manufacturing cost of the air purifier.

[0093] Optionally, the screws pass through the support leg 322, the fixing part 112 of the side plate 110, and the support column 331 in sequence.

[0094] One end of the support leg 322 is fitted into the fixing groove at the top of the support column 331. Although fixing the support leg 322 can fix the side plate 110, the fact that the screws also penetrate the extension of the side plate 110 provides a double guarantee mechanism for fixing the side plate 110, which can better fix the side plate 110.

[0095] Optionally, there are multiple support columns 331, which are spaced apart along the circumference of the ventilation. There are multiple side plates 110, each of which extends inward and is provided with a fixing part 112. The air duct 330 is located within the space defined by the multiple side plates 110.

[0096] The fan bracket 320 suspends and fixes the fan in the middle of the fan housing 300. Multiple support columns 331 allow the multiple legs 322 of the fan bracket 320 to fix the tray 321 to the middle of the fan housing 300 in a spoke-like manner, further securing the fan below the tray 321. Multiple side panels 110 are assembled together. This design further facilitates the assembly and disassembly of the air purifier, making it more convenient for users.

[0097] Optionally, the side plate 110 extends and is provided with multiple fixing parts 112, which are correspondingly engaged with the fixing grooves of multiple support columns 331. With this arrangement, the upper part of the side plate 110 is fixed by multiple fixing parts 112, which can make the fixing of the side plate 110 more stable.

[0098] Optionally, the air purifier also includes a fan, fixed to a fan bracket 320, used to drive air to flow from the air inlet to the air outlet of the fan housing 300. The fan is vertically positioned; when it rotates, it throws the air in the center outwards, creating a low-pressure zone in the center and a high-pressure zone around the edges. Air moves from the low-pressure zone to the high-pressure zone of the fan housing 300. The air inlet of the fan housing 300 is connected to the air outlet of the water tank 200. Water droplets entering the fan housing 300 from the water tank 200 with the air are thrown from the center to the high-pressure zones around the edges by the fan. The water droplets have a relatively high specific gravity and inertia, making them easy to adhere to the side walls of the fan housing 300. The air outlet is located at the top of the fan housing 300, and the air from the high-pressure zones around the edges flows out of the air outlet of the fan housing 300 under the influence of the pressure difference. Water droplets are adsorbed by the side walls, accumulate, increase in volume, and slide to the bottom of the fan housing 300. The fan housing 300 is located on top of the water tank 200. The air in the fan housing 300 moves from bottom to top, making it difficult for water droplets in the fan housing 300 to enter the air purifier's environment through the air outlet of the fan housing 300. The fan is vertically positioned, throwing the air in all directions, which helps the water droplets in the fan housing 300 to be adsorbed by the side walls of the fan housing 300, thus preventing the water droplets from being thrown out of the air outlet of the housing.

[0099] Optionally, the fan includes a motor 311, a connecting plate 312, multiple blades 313, and an air-guiding ring 314. The motor 311 is located above the air inlet of the fan box 300, and its output shaft is vertically oriented. The connecting plate 312 is fixed to the output shaft of the motor 311. The multiple blades 313 are connected to the connecting plate 312 and distributed circumferentially along the motor 311. When the motor 311 rotates, the multiple blades 313 drive the air to move radially outward along the motor 311. The air-guiding ring 314 is connected to the bottom of the multiple blades 313.

[0100] Motor 311 provides power for the rotation of blades 313. When motor 311 rotates, blades 313 drive air to rotate, causing air to move from the fan location to the surrounding areas under the action of centrifugal force, thus forming a central low-pressure zone and a surrounding high-pressure zone within the fan housing 300. The induced draft ring 314 facilitates the fixing of multiple blades 313. Furthermore, the induced draft ring 314 defines the air inlet in the central low-pressure zone, thereby making the airflow more orderly.

[0101] Optionally, the air-drawing ring 314 extends downward from the bottom of the multiple blades 313. When the motor 311 rotates, the air-drawing ring 314 rotates together with the blades 313. Because the air-drawing ring 314 extends downward and its bottom is a certain distance from the blades 313, the air at the bottom of the air-drawing ring 314 is less affected by the airflow near the blades 313, thus allowing it to be better drawn into the fan blades 313 under the negative pressure of the air-drawing ring 314. This arrangement not only improves the structural strength of the fan but also enhances the air-drawing effect of the air-drawing ring 314.

[0102] Optionally, the air duct 330 extends upward from the bottom of the fan housing 300, with the bottom opening serving as the air inlet of the fan housing 300 and the top opening corresponding to the air intake ring 314. When the fan rotates, it throws the airflow at the fan location to the surrounding areas. The fan location is a low-pressure zone, and the surrounding area is a high-pressure zone. The upper panel 130 has an air outlet near the side wall, which connects to the surrounding high-pressure zones. The external environment of the air outlet is at normal pressure, thus creating a pressure difference at the air outlet. Driven by this pressure difference, the air inside the fan housing 300 flows from the high-pressure zone of the fan housing 300 to the outside of the fan housing 300. The air inlet of the fan housing 300 is located on the bottom plate in the middle, in the low-pressure zone. The air inside the water tank 200 is at normal pressure, and there is a pressure difference at the air inlet of the fan housing 300. Driven by the pressure difference, air in the water tank 200 passes through the water curtain generated by the water curtain generating unit 210 and enters the fan box 300. In this way, air continuously enters the fan box 300 from the air inlet at the bottom and exits from the air outlet, driving airflow within the air purifier. This design allows water droplets in the air entering the fan box 300 to be separated, thus preventing water from the air purifier's exhaust from affecting the cleanliness of the surrounding environment.

[0103] The air guide duct 330 is a cylindrical structure, vertically arranged. The diameter of the air guide duct 330 gradually decreases from bottom to top. The opening at the bottom of the air guide duct 330 is used to introduce air from the water tank 200 into the fan housing 300. The opening at the top of the air guide duct 330 serves as the air inlet of the fan housing 300 and / or the air outlet of the water tank 200. The inner wall of the air guide duct 330 acts as a guide, directing air from the water tank 200 into the fan housing 300. The outer wall of the air guide duct 330 forms a water-collecting groove with the bottom plate and side wall of the fan housing 300, which is used to collect water falling along the side wall of the fan housing 300. The opening at the top of the air guide ring corresponds to the air intake ring 314, that is, it is located below the air intake ring 314, in the central negative pressure zone of the fan housing 300. In this way, the air in the water tank 200 can enter the fan box 300 along the air guide duct 330 under the negative pressure of the fan box 300.

[0104] Optionally, the upward extension of the air guide duct 330 is inserted into the air intake ring 314. The air guide duct 330 and the air intake ring 314 partially overlap in the vertical direction. This acts as a backflow preventer for the air in the fan housing 300. Specifically, when the fan rotates, the air in the fan housing 300 moves from the fan to the periphery of the fan housing 300. There is a pressure difference between the low-pressure area in the center and the high-pressure areas around the periphery, and some air may return from the high-pressure areas around the periphery to the low-pressure area in the center. The upward extension of the air guide duct 330 into the air intake ring 314 stops the horizontal movement of air, thus providing a backflow preventer to some extent. Furthermore, even if air still enters the multiple blades 313 of the fan through the gap between the air guide ring and the air intake ring 314, this air moves upwards, and under the entrainment effect of this air, the air in the air guide duct 330 can be guided upwards. This configuration allows the air in the water tank 200 to enter the fan box 300 more effectively.

[0105] Optionally, the air purifier also includes a purification module 500, which is located at the air outlet of the water tank 200. The purification module 500, located at the air outlet of the water tank 200, serves two purposes. First, it prevents water in the water tank 200 from rising and entering the fan housing 300. Second, it performs secondary filtration and purification on the air that has passed through the water curtain purification process.

[0106] Using the air purifier provided in this embodiment, a purification module 500 is installed at the air outlet of the water tank 200, which can prevent water in the water tank 200 from entering the fan box 300, and can filter the air purified by the water curtain, thereby improving the air purification effect of the water tank 200 purification device.

[0107] Optionally, the top of the water tank 200 is open, and the purification module 500 covers the opening at the top of the water tank 200. With the top of the water tank 200 open and the purification module 500 covering the opening, the entire top of the water tank 200 serves as its air outlet. The relatively large air outlet of the water tank 200 increases the purification area of ​​the purification module 500, reduces air resistance as air flows through the purification module 500, and improves the air purifier's purification efficiency.

[0108] Optionally, the side wall of the water tank 200 has slots into which the purification module 500 is inserted. The purification module 500 may become wet during use, leading to a decrease in purification capacity, and the purification module 500 itself requires regular cleaning or replacement. The slots in the side wall of the water tank 200 and the pull-out installation of the purification module 500 make installation and removal of the purification module 500 convenient. This design facilitates user operation.

[0109] Optionally, the water-blocking structure has steps, and the purification module 500 is attached to the steps. In this configuration, the purification module 500 is assembled from the top of the water tank 200 downwards, with the purification module 500 attached to the steps. This arrangement provides a more secure fixation for the purification module 500.

[0110] Optionally, the purification module 500 includes a first grid plate and a filter plate, wherein the first grid plate is recessed downward to form an accommodating groove; the filter plate is embedded in the accommodating groove.

[0111] The filter plate itself has poor rigidity, so the first grid plate provides support for it. The first grid plate has a downward-curving groove in the middle, into which the filter plate is embedded. In this way, the first grid plate not only supports the filter plate but also limits its horizontal movement, preventing displacement. The edges of the first grid plate are used to fix the purification module 500, either by inserting it into a slot or by attaching it to a step on the side wall of the water tank 200. This design makes the structure of the purification module 500 more compact and allows for better placement within the water tank 200. Furthermore, with this structure, the first grid plate does not need to be replaced; the filter plate is a consumable. After removing the purification module 500, the filter plate can be removed for cleaning or replacement.

[0112] Optionally, the purification module 500 also includes a second grid plate, which covers the receiving groove, with the filter plate located between the first and second grid plates. The first grid plate is recessed downwards to form the receiving groove, and the filter plate is located within the receiving groove, with the second grid plate covering the receiving groove. The first and second grid plates together fix the filter plate in place. The filter plate cannot be moved in either the vertical or horizontal direction. With this arrangement, the purification module 500 has better overall integrity and is easier for users to disassemble and use.

[0113] Optionally, the second grille plate is interlocked with the first grille plate. This interlocking of the second and first grille plates further improves the overall integrity of the purification module 500. The interlocking design also facilitates the assembly and disassembly of the filter plates.

[0114] Optionally, the air purifier also includes a water collection tray located below the water tank 200 to collect water that overflows from the water tank 200. During operation, water inevitably splashes out of the water tank 200. The water collection tray collects water that falls along the guide strip 422. The water collection tray prevents water discharged from the base of the water tank 200 from flowing into the environment where the air purifier is located, thus improving user convenience.

[0115] Optionally, the housing 100 also includes a side plate 110 and a bottom plate, wherein the side plate 110 has an air inlet window 111, which is connected to the air inlet of the water tank 200; the bottom plate and the side plate 110 enclose an accommodating space; and a water collection tray is disposed on the bottom plate.

[0116] The side plate 110 of the housing 100 has an air inlet window 111. Air entering the accommodating space through the air inlet window 111 enters the water tank 200 through the air inlet. The water collection tray is set on the bottom plate of the water tank 200, and the bottom plate can better fix and support the water collection tray.

[0117] Optionally, the water collection tray and the base plate are integrally formed. The base plate is recessed downwards to form a water collection space, and the base plate also serves as the water collection tray. This design facilitates the processing of the base plate and can reduce the cost of the air purifier.

[0118] Optionally, the air inlet 111 is equipped with a grille. The grille can prevent foreign objects from entering the water tank 200 housing 100 through the air inlet 111.

[0119] Optionally, the water tank base 400 is provided with a drain hole 421, and a water collection tray is located below the drain hole 421. The drain hole 421 in the water tank base 400 allows water accumulated in the water tank base 400 to be drained more effectively.

[0120] Optionally, the air purifier also includes a guide strip 422 extending downward from the drain hole 421 for guiding water from the water tank seat 400 downward from the drain hole 421 to the water collection tray.

[0121] The water tank base 400 has a drain hole 421 for draining water splashed from the water tank 200. Since the amount of water splashed from the water tank 200 is relatively small, it accumulates in the water tank base 400 and slowly flows to the drain hole 421. Due to the good wetting properties of water, there is a possibility of dripping noise, and the water flowing downwards along the drain hole 421 may flow along the lower surface of the water tank base 400 to other places. Therefore, a guide strip 422 is provided at the drain hole 421, extending downwards from the drain hole 421 to guide the water accumulated in the water tank base 400 downwards from the drain hole 421. The water accumulated at the base of the water tank 200 flows to the vicinity of the drain hole 421, wets the guide strip 422, and moves downwards along the guide strip 422. This prevents dripping noise and avoids water flowing to other places. Using the air purifier provided in this embodiment, the water tank base 400 has a drain hole 421, and a guide strip 422 is provided corresponding to the drain hole 421. This not only prevents water from dripping from the drain hole 421 and making a dripping sound, but also prevents water droplets from sliding along the lower surface of the water tank base 400 to other parts of the air purifier. This allows the water accumulated in the water tank base 400 to be discharged more effectively, improving the user experience.

[0122] Optionally, the air purifier also includes a panel bracket 325 extending upward from the tray 321; a display panel 326 is fixed to the panel bracket 325, and the display panel 326 is a waterproof panel, with water flowing down the waterproof panel into the tray 321. Specifically, the tray 321 is fixed to the fan bracket 320. When adding water to the air purifier, water is poured onto the display panel 326, flows down the display panel 326 into the tray 321, and then flows down the guide pipe 323 into the water tank 200. This design allows the panel to be rinsed when adding water, and the method of water pouring along the panel differs from conventional water filling methods, breaking the misconception that the panel cannot be touched, making the air purifier more technologically advanced and futuristic.

[0123] Optionally, the air purifier also includes a housing 100 and a filter assembly 800. The housing 100 has a accommodating space and an air inlet 111 communicating with the accommodating space. A water tank 200 is disposed in the accommodating space. The water tank 200 and the housing 100 form a sandwich air duct. The first end of the sandwich air duct is the air inlet 111, and the second end is the air inlet of the water tank 200. The filter assembly 800 is disposed in the sandwich air duct and is used to filter the air passing through the sandwich air duct.

[0124] The housing 100 encloses the water tank 200, and the housing 100 is at a certain distance from the side wall of the water tank 200 where the air inlet is located, thus forming a sandwich air duct with the side wall of the water tank 200. Air passes through the sandwich air duct and enters the water tank 200 from the air inlet. The filter assembly 800 is disposed within the sandwich air duct to filter the air entering the water tank 200. Using the air purifier provided in this embodiment, the filter assembly 800 works in conjunction with the water curtain to purify the air, thereby improving the air purifier's air purification effect.

[0125] Optionally, the filter assembly 800 is attached to the air inlet window 111. The filter assembly 800 being attached to the air inlet window 111 allows the air entering the water tank 200 through the interlayer air duct to be fully filtered by the filter assembly 800, thereby improving the air purification effect of the air purifier.

[0126] Optionally, the housing 100 includes a side plate 110, a bottom plate, and a snap-fit ​​plate. The side plate 110 has an air inlet window 111. The bottom plate and side plate 110 enclose a receiving space. The snap-fit ​​plate extends inward from the side wall and is located above the air inlet window 111. The snap-fit ​​plate and bottom plate form a retaining space, in which the filter assembly 800 is snapped. The bottom plate and side plate 110 of the housing 100 enclose a receiving space, within which the water tank 200 is located. The snap-fit ​​plate is parallel to the bottom plate, forming a retaining space with it. The filter assembly 800 is embedded within the retaining space. This arrangement facilitates the installation and removal of the filter assembly 800 and makes it convenient for users.

[0127] Optionally, the filter element 800 is interference-fitted with the retaining space. This design, relying on the filter element 800's own elastic retaining space, is simple in structure, easy to implement, and can reduce the cost of air purifiers.

[0128] Optionally, the side panel 110 is provided with a plurality of air inlets 111 spaced apart along the circumference of the water tank 200, and the filter assembly 800 is provided corresponding to the plurality of air inlets 111. The provision of a plurality of air inlets 111 on the side panel 110 can reduce the air resistance of the interlayer air duct and increase the air volume of the air purifier. The filter assembly 800 is provided corresponding to the plurality of air inlets 111, which can better filter the air and further improve the air purification effect of the air purifier.

[0129] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air purifier, characterized in that, include: The housing includes a top panel, which has an air outlet and a water inlet; A fan box is located inside the housing. The fan box includes an air guide duct and a flow guide section. The air guide duct houses the fan, and the flow guide section is used to guide water flow. A water tank, located below the fan box, includes an air inlet and an air outlet; and, A water curtain generating unit, located inside the water tank, is used to form a water curtain above the interior of the water tank. The water curtain is a waterfall-like flow composed of multiple water streams. A fan bracket is fixed inside the housing and located above the fan box. The fan bracket includes a tray and a first guide hole communicating with the tray. The tray is located below the water inlet. An air outlet channel for airflow is formed between the tray and the inner sidewall of the housing. The first guide hole communicates with the guide section. A water tank is located below the air duct. Water can be injected into the tray through the water inlet and flow into the water tank through the first guide hole and the guide section. Airflow can flow upward from the water tank through the air duct and the air outlet channel, and then be discharged from the air outlet of the upper panel. A water tank base is fixed inside the housing; the water tank base includes a support plate, which is vertically disposed in the lower part of the housing, and the support plate is vertically connected to the fan box. In this air purifier, the water flow path and the air flow path are independent and flow in opposite directions. The water in the water flow path is injected from the water inlet on the upper panel, flows downward through the guide section and the water tank, and then forms a water curtain through the water curtain generating unit. The air flow in the air flow path enters the water tank through the air inlet, passes through the water curtain, flows upward through the air outlet of the water tank, passes through the air guide tube, and is discharged upward from the air outlet on the upper panel. The support plate includes a support plate body, a transfer cavity, and an air guide section. The bottom of the support plate body is fixed to the bottom wall of the housing. An air inlet space is left between the support plate body and the side wall of the housing. An air inlet window is opened on the side wall of the housing, and the air inlet space communicates with the air inlet window. The transfer cavity is located at the top of the support plate body. The transfer cavity includes a water inlet and a drain outlet. The water inlet communicates with the air guide section, and the drain outlet communicates with the water tank, so that the water flows from the air guide section, through the transfer cavity, and then into the water tank. The air guide section corresponds to the air inlet of the water tank, so that the air inlet space and the water tank are connected through the air guide section and the air inlet of the water tank.

2. The air purifier according to claim 1, characterized in that, The water tank has an air inlet on its side wall and an air outlet on its top. The air inlet of the water tank is connected to the air inlet window on the side wall of the shell. Airflow enters through the air inlet window of the housing, enters the water tank through the air inlet of the water tank, is purified in the water tank, flows upward through the air outlet of the water tank, passes through the air guide tube and the air outlet channel, and then flows out through the air outlet of the housing.

3. The air purifier according to claim 2, characterized in that, Also includes: The water tank can be detachably installed on the water tank base.

4. The air purifier according to claim 3, characterized in that, The water tank base also includes: A support platform is fixed to the support plate, and the support platform and the support plate together enclose a first accommodating space for accommodating the water tank.

5. The air purifier according to claim 4, characterized in that, The water tank also includes a flow guide, and the drain outlet of the transfer chamber passes through the flow guide and extends into the water tank.

6. The air purifier according to claim 5, characterized in that, Also includes: A water-blocking mechanism, corresponding to the air inlet and / or the flow guide of the water tank, is disposed inside the water tank to prevent water in the water tank from splashing out from the air inlet and / or the flow guide.

7. The air purifier according to claim 6, characterized in that, The water-blocking mechanism includes: The first baffle plate has an outer ring linearly connected to the side wall of the water tank and extends upward beyond the air inlet and the guide port of the water tank, while the inner ring forms an air outlet; and, The second baffle extends downward from the inner edge of the first baffle and beyond the air outlet.

8. The air purifier according to claim 7, characterized in that, Also includes: A water curtain generating unit is located inside the water tank and is used to form a water curtain above the inside of the water tank. The water curtain is higher than the air inlet of the water tank, and the water jet from the water curtain generating unit is sprayed onto the second baffle plate.

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