Humidifying device and method

Abstract

The present application is applicable to the field of household appliances, and provides a humidifying device and method. The humidifying device comprises: a body, a liquid injection port being formed in the top of the body; a fan assembly, located in the body, the fan assembly having a cavity communicated with the liquid injection port, and liquid injected through the liquid injection port being able to flow through the cavity and out of the fan assembly; a liquid storage tank, used for receiving the liquid, the liquid flowing out of the fan assembly being able to flow into the liquid storage tank; a humidifying assembly, located between the fan assembly and the liquid storage tank, during operation of the fan assembly, airflow disturbed by the fan assembly running through the humidifying assembly; and a water pump assembly, at least partially communicated with the liquid storage tank, the water pump assembly being used for drawing the liquid in the liquid storage tank and conveying same to the humidifying assembly.

Description

Humidifying apparatus and method

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202520345404.8, filed on February 28, 2025, entitled “Water Absorption Assembly and Humidifying Device”, the content of which is incorporated herein by reference in its entirety.

[0003] This application claims priority to the Chinese Patent Application No. 202522017472.4, filed on September 18, 2025, entitled “Humidifying Apparatus”, the content of which is incorporated herein by reference in its entirety.

[0004] This application claims priority to the Chinese Patent Application No. 202511418105.3, filed on September 29, 2025, entitled “Preparation Method of Antibacterial Colored Mesh Cloth and Humidifier”, the content of which is incorporated herein by reference in its entirety.

[0005] This application claims priority to the Chinese Patent Application No. 202522325338.0, filed on October 31, 2025, entitled “Humidifying Apparatus”, the content of which is incorporated herein by reference in its entirety.

[0006] This application claims priority to the Chinese Patent Application No. 202522313797.7, filed on October 31, 2025, entitled “Humidifying Apparatus”, the content of which is incorporated herein by reference in its entirety.

[0007] This application claims priority to the Chinese Patent Application No. 202522388229.3, filed on November 10, 2025, entitled “Humidifying Apparatus”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0008] The present application relates to the technical field of household appliances, and in particular to a humidifying apparatus and method. BACKGROUND

[0009] The humidifying apparatus is configured with a fan assembly, a humidifying assembly, a water pump assembly, and a liquid storage tank. The liquid in the liquid storage tank is usually delivered to the humidifying assembly by the water pump assembly. The airflow disturbed by the fan passes through the humidifying assembly to complete humidification, and is then discharged from the humidifying apparatus, thereby increasing the air humidity of the use environment.

[0010] In the case that the humidifying liquid in the liquid storage tank is insufficient, the user needs to disassemble the liquid storage tank and move the liquid storage tank to the water source to add water, which is inconvenient and reduces the convenience of the humidifying device.

[0011] SUMMARY

[0012] The first aspect of the embodiments of the present application provides a humidifying device, which comprises: a body, a liquid injection port being arranged on the top of the body; a fan assembly arranged in the body, the fan assembly being formed with a cavity which is communicated with the liquid injection port, liquid injected through the liquid injection port being capable of being discharged from the fan assembly through the cavity; a liquid storage tank for receiving liquid discharged from the fan assembly; a humidifying assembly arranged between the fan assembly and the liquid storage tank, air flow disturbed by the fan assembly being capable of flowing through the humidifying assembly; and a water pump assembly at least partially communicated with the liquid storage tank, the water pump assembly being used to extract liquid in the liquid storage tank and deliver the liquid to the humidifying assembly.

[0013] The second aspect of the embodiments of the present application provides a humidifying device, which comprises: a liquid storage tank, the liquid storage tank having a liquid storage cavity, a bottom wall of the liquid storage tank comprising a limiting recess, a top of the liquid storage tank comprising a first limiting portion, the first limiting portion extending to the inside of the liquid storage cavity along the radial direction of the humidifying device; and a water pump assembly being detachably arranged in the liquid storage cavity, at least a part of the water pump assembly being capable of extending into the limiting recess to limit the water pump assembly in the limiting recess, the limiting recess limiting the water pump assembly in the circumferential direction of the liquid storage tank, the water pump assembly comprising a second limiting portion which is limited by the first limiting portion, the second limiting portion being limited by the first limiting portion to limit the water pump assembly in the height direction of the liquid storage tank.

[0014] The third aspect of the embodiments of the present application provides a humidifying device, which comprises: an upper cover assembly, the upper cover assembly being provided with a liquid injection port; a fan assembly, the fan assembly comprising a guide bracket and a motor and a fan wheel arranged in the guide bracket, the guide bracket comprising a passage port communicated with the liquid injection port, the guide bracket comprising a guide ring surrounding the outside of the fan wheel and a bottom shell connected to the guide ring, the bottom shell comprising a liquid discharge hole and an annular flow guide portion, the flow guide portion being used to receive liquid flowing from the passage port and guide the liquid to the liquid discharge hole; and a liquid storage tank arranged on the side of the fan assembly away from the upper cover assembly, the liquid storage tank being used to receive liquid flowing from the liquid discharge hole; wherein the flow guide portion comprises a first flow guide section connected to the guide ring, the first flow guide section being inclinedly extended relative to the central axis of the motor, the first flow guide section being inclinedly extended from the guide ring to the central axis, and an included angle θ1 between the first flow guide section and the horizontal plane satisfies: 40°< θ1 < 65°.

[0015] A fourth aspect of the embodiments of the present application provides a humidifying device, comprising: an upper cover assembly, wherein a liquid injection port is arranged on the upper cover assembly; a fan assembly, comprising a guide bracket and an impeller rotatably arranged in the guide bracket, the impeller comprising a blade disc, the guide bracket comprising a guide portion, a liquid discharge channel being formed between the blade disc and the guide portion, the guide bracket being provided with a liquid discharge hole, the liquid discharge channel being in communication with the liquid injection port and the liquid discharge hole respectively, in a certain cross section of the fan assembly, a diameter ratio of the blade disc to the guide portion is W, and W satisfies: 0.78 < W < 0.88; and a liquid storage tank, located on a side of the fan assembly away from the upper cover, the liquid storage tank being used for receiving liquid flowing out of the liquid discharge channel.

[0016] A fifth aspect of the embodiments of the present application provides a humidifying device, comprising: an upper cover assembly, wherein a display panel, a drainage portion and an air outlet grille portion are arranged in sequence from the center to the periphery of the upper cover assembly, the air outlet grille portion being provided with a plurality of liquid injection ports which can be used for liquid injection; a fan assembly, comprising a cavity in communication with the liquid injection ports; and a liquid storage tank, located on a side of the fan assembly away from the upper cover assembly, the liquid storage tank being capable of receiving liquid discharged from the cavity; wherein the drainage portion and the air outlet grille portion form a drainage groove which is recessed towards the fan assembly, and the drainage groove is used for gathering liquid falling on the upper cover assembly.

[0017] A sixth aspect of the embodiments of the present application provides a humidifying device, comprising a humidifying assembly having a wettable substrate, the humidifying assembly comprising: a three-dimensional fabric for absorbing liquid; and an edge sealing fabric connected to an end portion of the three-dimensional fabric and covering at least part of the three-dimensional fabric in a first direction, the first direction being a thickness direction of the three-dimensional fabric.

[0018] A seventh aspect of the embodiments of the present application provides a method, comprising: mixing a synthetic fiber wet curtain white cloth, an antibacterial agent and a dye in water, adjusting a pH value of an aqueous solution formed by the mixing to 3-8, and performing heat preservation treatment at a high temperature of 125-145 ℃ to obtain an antibacterial colored wet curtain; the antibacterial agent is combined with the synthetic fiber wet curtain white cloth fiber through covalent bond reaction to obtain a wettable substrate.

[0019] The eighth aspect of the embodiment of the present application provides a method, comprising: mixing a three-dimensional white base cloth, an antibacterial agent and a dye in water, adjusting the pH value of the water solution formed by the mixing to 3-8, and performing a high-temperature holding treatment at 125-145 DEG C to obtain an antibacterial colored three-dimensional mesh cloth for making a wettable base material; the fiber material of the three-dimensional white base cloth is one or more of polyester, polyvinyl alcohol, polyamide and polyacrylonitrile; and the antibacterial agent is combined with the three-dimensional white base cloth fiber through a covalent bond reaction.

[0020] The ninth aspect of the embodiment of the present application provides a humidifying device, which comprises a wettable base material made of the antibacterial colored three-dimensional mesh cloth obtained by the method of the eighth aspect of the embodiment of the present application and sewn after being superimposed by 2-8 layers.

[0021] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and to be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating laborious work.

[0023] Fig. 1 is a perspective structural schematic view of a humidifying device according to an embodiment of the present application;

[0024] Fig. 2 is a structural schematic view of the humidifying device according to an embodiment of the present application after the machine body is lifted;

[0025] Fig. 3A is a sectional view of the humidifying device according to an embodiment of the present application;

[0026] Fig. 3B is a sectional view of the humidifying device according to an embodiment of the present application and shows a liquid flow path;

[0027] Fig. 4 is a side view of the humidifying device according to an embodiment of the present application after removing the ventilation shell of the machine body;

[0028] Fig. 5 is a perspective structural schematic view of the humidifying device according to an embodiment of the present application after removing the ventilation shell;

[0029] Fig. 6 is an exploded structural schematic view of the humidifying assembly, the water pan and the box of the humidifying device according to an embodiment of the present application;

[0030] Figure 7 is an exploded view of the humidification components and the liquid storage tank in a humidification device according to an embodiment of this application;

[0031] Figure 8 is a side view of the water receiving tray in a humidification device according to an embodiment of this application;

[0032] Figure 9 is a three-dimensional structural diagram of a humidification component in a humidification device according to an embodiment of this application;

[0033] Figure 10 is an exploded structural diagram of the casing of a humidification device according to an embodiment of this application;

[0034] Figure 11 is a cross-sectional view of a humidification device according to an embodiment of this application;

[0035] Figure 12 is a schematic diagram of the air guide bracket of the fan assembly in a humidification device according to an embodiment of this application;

[0036] Figure 13 is a schematic diagram of the structure of the liquid storage tank in a humidification device according to an embodiment of this application;

[0037] Figure 14 is a schematic diagram of the assembly of the water pump assembly and the housing in a humidification device according to an embodiment of this application;

[0038] Figure 15 is an assembly cross-sectional view of the water pump assembly and the housing in a humidification device according to an embodiment of this application;

[0039] Figure 16 is a three-dimensional structural diagram of a water pump assembly in a humidification device according to an embodiment of this application;

[0040] Figure 17 is a three-dimensional structural diagram of a water pump assembly in a humidification device according to an embodiment of this application;

[0041] Figure 18 is a three-dimensional structural diagram of the housing in a humidification device according to an embodiment of this application;

[0042] Figure 19 is a three-dimensional structural diagram of the water receiving tray in a humidification device according to an embodiment of this application;

[0043] Figure 20 is a three-dimensional structural diagram of the water receiving tray in a humidification device according to an embodiment of this application;

[0044] Figure 21 is a cross-sectional view of a humidification device according to an embodiment of this application;

[0045] Figure 22 is an exploded structural diagram of the fan assembly in a humidification device according to an embodiment of this application;

[0046] Figure 23 is a cross-sectional view of the fan assembly in a humidification device according to an embodiment of this application;

[0047] Figure 24 is an enlarged view of point A in Figure 21;

[0048] Fig. 25 is an enlarged view of B in Fig. 21;

[0049] Fig. 26 is a perspective view of a bottom shell of a fan assembly in a humidifying device according to an embodiment of the present application;

[0050] Fig. 27 is a perspective view of a bottom shell of a fan assembly in a humidifying device according to an embodiment of the present application;

[0051] Fig. 28 is a structural view of a fan wheel of a fan assembly in a humidifying device according to an embodiment of the present application;

[0052] Fig. 29 is an assembly view of a fan assembly and an upper cover assembly in a humidifying device according to an embodiment of the present application;

[0053] Fig. 30 is an exploded view of a fan assembly and an upper cover assembly in a humidifying device according to an embodiment of the present application;

[0054] Fig. 31 is a sectional view of an upper cover assembly in a humidifying device according to an embodiment of the present application;

[0055] Fig. 32 is a perspective view of an upper cover assembly in a humidifying device according to an embodiment of the present application;

[0056] Fig. 33 is a perspective view of an upper cover assembly in a humidifying device according to an embodiment of the present application;

[0057] Fig. 34 is a perspective sectional view of an upper cover assembly in a humidifying device according to an embodiment of the present application;

[0058] Fig. 35 is a perspective sectional view of a fan wheel according to an embodiment of the present application;

[0059] Fig. 36 is a sectional view of a fan wheel according to an embodiment of the present application;

[0060] Fig. 37 is a structural view of a wettable substrate according to an embodiment of the present application;

[0061] Fig. 38 is a structural view of a wettable substrate according to an embodiment of the present application;

[0062] Fig. 39 is a partial structural view of a wettable substrate according to an embodiment of the present application;

[0063] Fig. 40 is a front view of the wettable substrate of Fig. 39;

[0064] Fig. 41 is a side view of the wettable substrate of Fig. 39;

[0065] Fig. 42 is a partial structural view of a three-dimensional fabric according to an embodiment of the present application;

[0066] Fig. 43 is a front view of the three-dimensional fabric of Fig. 42;

[0067] Figure 44 is a partial enlarged view of the structure of the three-dimensional fabric of Figure 42;

[0068] Figure 45 is a schematic view of the structure of an edge fabric according to an embodiment of the present application;

[0069] Figure 46 is a cross-sectional view of an edge fabric according to an embodiment of the present application;

[0070] Figure 47 is a schematic view of the structure of a humidifying device according to an embodiment of the present application;

[0071] Figure 48 is a front view of a wet curtain support according to an embodiment of the present application;

[0072] Figure 49 is a top view of a wet curtain support according to an embodiment of the present application;

[0073] Figure 50 shows a cross-sectional view taken along A-A in Figure 49;

[0074] Figure 51 shows a cross-sectional view taken along B-B in Figure 49;

[0075] Figure 52 is a schematic view of the structure of a wet curtain support according to an embodiment of the present application;

[0076] Figure 53 is a schematic view of the structure of a wet curtain support according to an embodiment of the present application;

[0077] Figure 54 is a schematic view of the structure of a wet curtain support according to an embodiment of the present application;

[0078] Figure 55 is a schematic view of the structure of a humidifying assembly according to an embodiment of the present application;

[0079] Figure 56 is a schematic view of the knitting structure of a three-dimensional mesh white fabric according to some embodiments of the present application;

[0080] Figure 57 is a schematic view of the mesh shape of a three-dimensional mesh white fabric according to some embodiments of the present application;

[0081] Figure 58 is a schematic view of a wettable substrate according to some embodiments of the present application.

[0082] Explanation of reference numerals: 1-humidifying device; 10-liquid storage tank; 101-water receiving tray; 1011-receiving portion; 10111-converging groove; 10112-permeable slit; 1012-flow guide surface; 10121-first peripheral edge; 10122-second peripheral edge; 1013-lifting portion; 10131-first through hole; 1014-avoiding limiting portion; 1015-second through hole; 102-tank body; 1021-limiting recess; 10211-limiting side wall; 1022-first limiting portion; 1023-fitting portion; 103-liquid storage cavity; 104-opening; 1041-avoiding notch; 105-elastic buckle; 106-third limiting portion; 20-water pump assembly; 201-power supply interface; 202-flow guide wall; 203-second limiting portion; 204-pushing portion; 2041-engaging portion; 205-mating gap; 206-sliding fitting portion; 207-water inlet portion; 2071-water inlet through hole; 208-water pump housing; 2081-water pump cavity; 209-water level detection assembly; 30-fan assembly; 301-cavity; 303-air guide support; 3031-motor cavity; 3032-first pipeline passage; 3033-second pipeline passage; 3034-motor compartment cover; 3035-passage opening; 3036-air guide ring; 3037-motor support; 3038-bottom shell; 30381-drainage hole; 30382-flow guide portion; 30382a-first flow guide section; 30382b-second flow guide section; 30382c-connection section; 30383-air inlet grille portion; 30384-drainage portion; 30385-barrier portion; 30386-bending angle; 304-motor; 306-fan wheel; 3061-hub; 30611-drainage hole; 30612-flow blocking portion; 30613-converging area; 3062-fan blade; 3063-leaf disc; 30631-wind blocking end; 307-drainage passage; 3071-liquid inlet end; 3072-liquid outlet end; 308-flow guide passage; 40-humidifying assembly; 401-wet curtain support; 402-immersible base material; 403-water equalizing tray; 4031-water equalizing flow channel; 4032-water overflow hole; 4033-water overflow portion; 4034-bottom plate; 4035-water guide surface; 40351-first inclined surface; 40352-second inclined surface; 4036-first baffle; 4037-second baffle; 4039-water equalizing hole; 404-water delivery pipe; 4041-water outlet; 100-stereoscopic fabric; 110-first base material; 111-first air vent; 112-windward surface; 120-second base material; 121-second air vent; 122-leeward surface; 130-second connecting fiber; 200-edge sealing fabric; 210-liquid guide hole; 220-first edge sealing portion; 230-second edge sealing portion; 240-first fabric; 241-first through hole; 250-second fabric; 251-second through hole; 260-first connecting fiber; 405-supporting frame; 4051-wind blocking plate; 4052-supporting bracket;4053-Base; 40531-Third inclined surface; 40532-Base limiting part; 406-Water guide rib; 400-Three-dimensional mesh white fabric; 440-First surface layer; 441-Edge of the first opening; 442-First mesh; 450-Intermediate filament layer; 460-Second surface layer; 461-Edge of the second opening; 462-Second mesh; 400'-Colored three-dimensional mesh fabric; 50-Body; 501-Upper cover assembly; 5011-Air outlet grille; 50111-Inner perimeter; 50112-Outer perimeter; 5012-Display panel; 5013-Upper cover of the body; 5015-Button module; 5016-Drainage part; 50161-Drainage rib; 5017-Drainage groove; 502-Air inlet housing; 5021-Air inlet hole; 503-Liquid injection port; 60 - Power supply module; 70 - Heating module; 80 - Power supply module; 801 - First conductive wire; 802 - Second conductive wire. Detailed Implementation

[0083] This application provides a humidification device 1, which improves the utilization of structural space, simplifies the air and liquid paths, reduces maintenance steps, and enhances the cleanliness and accessibility of the internal structure by adopting a compact modular design of the fan assembly 30, humidification assembly 40, liquid storage tank 10 and water pump assembly 20.

[0084] As shown in Figures 1 to 3A, the humidification device 1 includes a body 50, a fan assembly 30, a liquid storage tank 10, a humidification assembly 40, and a water pump assembly 20.

[0085] As shown in Figure 1, the main body 50 can be the external frame and shell of the humidifier 1. A liquid inlet 503 is provided on the top of the main body 50, through which the user can add humidifying water or purification liquid to the liquid storage tank 10 inside the main body 50. The liquid inlet 503, located on the top of the main body 50, shortens the liquid filling channel length, reduces splashing during liquid filling, simplifies filling alignment, and improves the smoothness of the liquid filling channel. Furthermore, the liquid inlet 503 can be reused as the air outlet of the fan assembly 30, simplifying the structure of the humidifier 1.

[0086] In some embodiments, as shown in FIG2, the body 50 of this application can be integrated with the fan assembly 30. When the user lifts the body 50, the fan assembly 30 can be lifted together with the body 50. The stacked humidification assembly 40 and the liquid storage tank 10 are exposed and visible to the user. The user can directly disassemble the humidification assembly 40, the liquid storage tank 10 and the water pump assembly 20 inside the liquid storage tank 10 for cleaning.

[0087] As shown in FIG. 3A and FIG. 3B, the fan assembly 30 is located in the housing 50. The fan assembly 30 is formed with a cavity 301 that is in communication with the liquid injection port 503. This design allows the liquid injected through the liquid injection port 503 to flow through the cavity 301 and then be discharged from the fan assembly 30. The cavity 301 can be the inner cavity of the fan assembly 30, and the liquid discharged from the fan assembly 30 is guided to the downstream liquid storage tank 10.

[0088] The liquid storage tank 10 is used to receive the liquid discharged from the fan assembly 30. The liquid storage tank 10 can be arranged below the fan assembly 30, so that part of the liquid injected through the liquid injection port 503 can directly fall into the liquid storage tank 10 based on gravity, and the liquid flow path is shown by the dashed arrow on the left side of FIG. 3B.

[0089] The fan assembly 30 further includes a liquid discharge passage 307, and the liquid discharge passage 307 is in fluid communication with the humidifying assembly 40. Another part of the liquid injected through the liquid injection port 503 is guided to the humidifying assembly 40 located directly below the fan assembly 30 through the liquid discharge passage 307, and the liquid flow path is shown by the solid arrow on the right side of FIG. 3B. The liquid first wets the wettable substrate 402 in the humidifying assembly 40 to replenish the water content of the wettable substrate 402, and then the excess or overflow liquid overflows to the liquid storage tank 10 under the action of gravity.

[0090] The humidifying assembly 40 is located between the fan assembly 30 and the liquid storage tank 10. The humidifying assembly 40 can be detachable relative to the liquid storage tank 10. The fan assembly 30 generates airflow when it is in operation, and the airflow flows through the humidifying assembly 40 through the air inlet hole 5021 on the housing 50. The humidifying assembly 40 includes a wet curtain support 401 and a wettable substrate 402 arranged on the wet curtain support 401. When the airflow flows through the wettable substrate 402, the humidity of the airflow is improved, and the function of humidifying the environment is improved.

[0091] The wettable substrate 402 can be a filter material composed of a hydrophilic polymer composite material or a natural / synthetic fiber woven fabric. The surface of the wettable substrate 402 can be treated with a nano coating or a gradient porosity to optimize the capillary water absorption performance. The wettable substrate 402 can form a high specific surface area air-water contact interface through multi-layer compounding or a three-dimensional honeycomb structure.

[0092] As shown in Figure 3A, the water pump assembly 20 is at least partially connected to the liquid storage tank 10. The water pump assembly 20 is used to draw liquid from the liquid storage tank 10 and transport the liquid through a pipeline to the humidification assembly 40 located upstream of the liquid storage tank 10 to replenish water to the wettable substrate 402, maintaining the wettable state of the wettable substrate 402. The water overflowing from the wettable substrate 402 flows back to the liquid storage tank 10, thereby completing the recycling of the liquid. The water pump assembly 20 improves the active transport of liquid from the liquid storage tank 10 to the humidification assembly 40, overcoming the problem of uneven or insufficient water replenishment caused by relying solely on capillary or gravity effects. Furthermore, the wettable substrate 402 does not need to be immersed in the tank 102 of the liquid storage tank 10. When the humidification device 1 is in standby mode, the wettable substrate 402 can remain dry, reducing bacterial growth.

[0093] Thus, this embodiment of the application arranges the liquid injection unit, fan assembly 30, liquid storage tank 10, humidification assembly 40, and water pump assembly 20 in an orderly spatial arrangement, forming a compact and efficient integrated humidification device 1. The user only needs to add liquid through the top injection port 503. The liquid flows sequentially through the fan assembly 30 and collects in the liquid storage tank 10, and is then pumped by the water pump assembly 20 to the humidification assembly 40 to participate in the humidification cycle. This simplifies the user's operation steps and improves the structural optimization and ease of use of the humidification device 1.

[0094] As shown in Figures 3A and 4, in some embodiments, the humidification device 1 further includes a power supply module 60 and a heating module 70.

[0095] The power module 60 is located inside the body 50 and provides electrical energy to the fan assembly 30, water pump assembly 20, heating module 70, etc. of the humidification device 1. The power module 60 can be a low-voltage DC power supply converted by an adapter or a built-in battery; this embodiment does not limit the choice.

[0096] The heating module 70 is fixedly mounted on a mounting bracket (not shown in the figure) between the humidification component 40 and the main body 50. The mounting bracket is made of high-temperature resistant and flame-retardant material (such as PA66 + 30% glass fiber) and is connected to the inner wall of the main body 50 by a combination of clips and screws. The heating module 70 and the power module 60 have improved electrical connection through high-temperature resistant silicone wires. The connection part is encapsulated with waterproof terminals to prevent moisture generated during humidification from entering and causing short circuits.

[0097] The heating module 70 is located between the humidifying component 40 and the main body 50, and is electrically connected to the power module 60. The heating module 70 can extend along the height direction of the humidifying device 1 and is correspondingly positioned to the humidifying component 40 in the height direction, that is, the heating module 70 can be located to the side of the humidifying component 40. The heating module 70 extends along the height direction of the humidifying device 1 and has a height projection surface corresponding to more than 60% of the height of the humidifying component 40 in the height direction. Specifically, it is installed to the side of the humidifying component 40 (single-sided or double-sided installation is possible, and symmetrical distribution is possible when double-sided installation is used). This installation position ensures that the heat generated by the heating module 70 can be evenly applied to the side wall of the humidifying component 40 and the airflow, avoiding heat concentration or excessive heat loss, and improving heat utilization efficiency.

[0098] The core heating element of the heating module 70 is a PTC heating element. The rated voltage of the PTC heating element matches the output voltage of the power module 60. An insulating layer is installed on the non-heating surface to reduce heat conduction to the inner wall of the unit 50, thereby lowering the outer shell temperature of the unit 50 and preventing heat loss. The PTC heating element features stable heating and high safety. Once its temperature reaches the Curie temperature, it automatically enters a constant temperature state, eliminating the need for an additional temperature control switch. This prevents overheating damage to the humidification component 40 and the internal components of the unit 50, while also reducing energy consumption.

[0099] Furthermore, the heating module 70 also includes a heat dissipation structure, which is an aluminum heat sink attached to the heating surface of the PTC heating element. The surface of the heat sink has evenly distributed heat dissipation fins. Thermal grease is applied between the heat sink and the PTC heating element to enhance the heat transfer efficiency between them, allowing heat to dissipate quickly and ensuring uniform temperature throughout the heating module 70. This also increases the contact area with the airflow and humidification component 40, improving heating and drying efficiency. In one scenario, the heating module 70 can be activated in humidification mode. The heating module 70 is located between the humidification component 40 and the multiple air inlets 5021 of the main body 50, forming an air intake area. After being heated, outside air enters the humidification component 40. The heated air increases the liquid evaporation efficiency within the humidification component 40, thereby improving the humidification efficiency of the humidification device 1 compared to the unheated state. In humidification mode, the control module can automatically control the start / stop and power adjustment of the heating module 70 based on the ambient temperature signal detected by the temperature sensor. Alternatively, the user can manually trigger the heating button to activate the heating module 70 (manual mode has higher priority than automatic mode). The temperature sensor is installed in the air inlet area of ​​the unit 50 to detect the temperature of the airflow entering the humidifier 1 in real time. When the ambient temperature detected by the temperature sensor is low, the control module automatically starts the heating module 70, with the initial power set to an appropriate proportion of the rated power. After the airflow is heated by the heating module 70, the airflow temperature at the outlet is controlled within an appropriate range (this temperature range can be adjusted by the program parameters of the control module), and the heating power is adjusted in real time according to the outlet temperature. When the ambient temperature does not need to be raised, the control module automatically turns off the heating module 70 to avoid energy waste when no heating is required. By precisely heating the airflow participating in humidification through the heating module 70, the temperature difference between the outlet airflow and the ambient air can be reduced, the probability of water vapor condensation in the airflow can be reduced, and water vapor adhesion caused by the cold and humid airflow can be avoided. At the same time, the moisture-carrying capacity of the airflow can be improved, thereby significantly improving the humidification efficiency of the humidifier 1 compared to the unheated state.

[0100] In cold seasons or when the ambient temperature is low, directly humidifying the indoor environment may result in cold, damp air, causing discomfort. The heating module 70 appropriately heats the airflow involved in humidification. This module regulates the temperature of the airflow, reducing the temperature difference between the outlet airflow and the ambient air, minimizing fluctuations in airflow temperature and humidity, and improving the uniformity of outlet air temperature and humidity.

[0101] In another scenario, the heating module 70 can be activated after the humidification mode ends or when the user actively starts the drying function. At this time, the water pump assembly 20 stops working, while the fan assembly 30 continues to run to promote air circulation. The heat generated by the heating module 70 can accelerate the evaporation of residual moisture in the humidification assembly 40, facilitating rapid and thorough drying, preventing mold growth or odors due to residual moisture, and maintaining the internal hygiene of the humidification device 1.

[0102] Specifically, after humidification is complete, the user can trigger the drying mode button to start the drying function, and the fan assembly 30 will operate at the set speed. At the same time, the drying mode can be adjusted with multiple fan speeds, and the user can select the corresponding fan speed according to actual needs to help accelerate the evaporation of residual moisture in the humidification assembly 40, improve rapid drying, and prevent the growth of bacteria or the generation of odors.

[0103] Operating parameters of heating module 70 in air-drying mode: Initially, it operates at rated power, and after a period of time, it reduces to a suitable power for continuous operation. When the humidity sensor detects that the surface humidity of the humidifying component 40 reaches a preset value, heating module 70 shuts down prematurely, and fan assembly 30 continues to run for a period of time before stopping (ensuring that residual heat is completely dissipated to avoid overheating of the humidifying component 40). If no humidity sensor signal is detected, air-drying mode operates for the default duration. The heat generated by heating module 70 can raise the ambient temperature around the humidifying component 40, accelerate the evaporation rate of residual moisture on the surface of the humidifying component 40 (especially the wettable substrate 402), significantly shorten the evaporation time of residual moisture, improve rapid and thorough drying, effectively control the amount of residual moisture in the humidifying component 40, inhibit mold growth, reduce the release of odor substances, and reduce the probability of microbial contamination inside the humidifying device 1.

[0104] In other scenarios, the humidifier 1 can integrate humidity and temperature sensor data and user habits to automatically decide on the start / stop and power adjustment of the heating module 70, thereby improving the intelligent and comfortable humidification operation and the air-drying operation of the humidification component 40.

[0105] In some embodiments, the humidifier 1 also has a self-cleaning mode. In self-cleaning mode, the water pump assembly 20 of the humidifier 1 operates, while the fan assembly 30 stops. The operator can add descaling substances such as citric acid, white vinegar / rice vinegar, malic acid, or lactic acid to the storage tank to dissolve impurities within the humidifier assembly 40. After the self-cleaning mode ends, the user triggers or the humidifier 1 automatically starts the drying function to dry the cleaned humidifier assembly 40, preventing bacterial growth and ensuring that the humidifier assembly 40 remains clean for the next humidification operation.

[0106] As shown in Figure 5, in some embodiments, the water pump assembly 20 is at least partially exposed outside the liquid storage tank 10, and the water pump assembly 20 includes a power supply interface 201. A power supply module 80 is located between the humidification assembly 40 and the main body 50. One end of the power supply module 80 is electrically connected to the power supply module 60 of the humidification device 1, and the other end of the power supply module 80 is detachably electrically connected to the power supply interface 201 of the water pump assembly 20.

[0107] The water pump assembly 20 is partially exposed outside the liquid storage tank 10, and its power supply interface 201 is used to receive power. One end of the power supply module 80 is connected to the power supply module 60 located inside the body 50, and the other end is designed as a detachable connector for docking with the power supply interface 201 of the water pump assembly 20.

[0108] By placing the power supply module 80 between the humidification component 40 and the main body 50, the wiring path of the power supply module 80 becomes relatively direct, avoiding long-distance wiring. Furthermore, since the power supply module 80 is located on the periphery of the humidification component 40, the airflow passing through it has not yet come into contact with the humidification component 40. This reduces the probability of contact between the connection point between the power supply module 80 and the water pump assembly 20 and the humidified airflow, further improving electrical safety.

[0109] As shown in Figures 6 and 7, in some embodiments, the liquid storage tank 10 includes a drip tray 101 and a tank body 102. The top of the tank body 102 is open to accommodate the drip tray 101 and form a liquid storage cavity 103. The drip tray 101 is used to collect liquid flowing out from the upper fan assembly 30. The drip tray 101 is detachably disposed at the top opening of the tank body 102. The detachable design allows the drip tray 101 to be easily removed for cleaning to remove any accumulated scale or impurities.

[0110] As shown in Figures 6 and 7, the humidifying component 40 is detachably mounted on the drip tray 101. That is, the humidifying component 40 is placed on or snapped onto the drip tray 101, rather than being directly fixed to the housing 102 or the main body 50. This detachable mounting allows the humidifying component 40 to be removed together with the drip tray 101, or separately from the drip tray 101, facilitating cleaning, replacement, or maintenance of the humidifying component 40 (especially the wettable substrate 402). The detachable mounting of the humidifying component 40 and the drip tray 101 reduces structural obstruction during cleaning, simplifies disassembly and assembly, reduces structural interference during maintenance, minimizes residual liquid inside the component, and improves cleaning coverage. The drip tray 101 not only serves to collect liquid but also acts as a mounting base for the humidifying component 40, improving functional integration.

[0111] As shown in Figures 7 and 8, in some embodiments, the water receiving tray 101 further includes a receiving portion 1011 extending toward the bottom wall of the housing 102. The receiving portion 1011 is formed with a confluence channel 10111 and a seepage slit 10112.

[0112] The manifold 10111 of the receiving section 1011 is used to collect liquid overflowing from the humidification component 40 or received by the drip tray 101. The seepage slit 10112 communicates with both the manifold 10111 and the liquid storage chamber 103 of the housing 102. The seepage slit 10112 can be a narrow slit, thereby controlling the flow rate of liquid from the manifold 10111 to the liquid storage chamber 103, improving slow, continuous seepage, and preventing excessive noise caused by liquid rushing into the liquid storage chamber 103.

[0113] As shown in Figure 8, the water receiving tray 101 includes a guide surface 1012. The guide surface 1012 includes a first periphery 10121 and a second periphery 10122 with a height difference. The first periphery 10121 is along the circumferential edge connected to the confluence channel 10111, and the second periphery 10122 is closer to the fan assembly 30 than the first periphery 10121, that is, the second periphery 10122 is at a higher position (relative to the height direction). The height difference between the first periphery 10121 and the second periphery 10122 causes the guide surface 1012 to form a slope or curved surface with a downward trend.

[0114] When liquid drips from the fan assembly 30 or overflows from the humidification assembly 40 onto the water collection tray 101, it first contacts the area near the higher second periphery 10122 of the guide surface 1012. Then, under the influence of gravity, the liquid flows along the inclined guide surface 1012 towards the lower first periphery 10121 and the collection channel 10111. The guide surface 1012 guides the liquid flow, ensuring that the liquid is collected in the collection channel 10111 instead of spreading or accumulating on the surface of the water collection tray 101. This improves the efficiency and reliability of liquid collection in the water collection tray 101 and keeps other areas of the water collection tray 101 relatively dry.

[0115] As shown in Figure 3A, in some embodiments, the water pump assembly 20 includes a guide wall 202. The top of the guide wall 202 has a first distance from the central axis of the humidification device 1, and the bottom of the guide wall 202 has a second distance from the central axis of the humidification device 1, and the second distance is smaller than the first distance.

[0116] The water pump assembly 20 is offset from the central axis of the humidification device 1 and is located closer to the edge of the housing 102. The profile of the guide wall 202 is inclined or curved, with its upper part farther from the central axis and its lower part closer to the central axis, so that the surface of the guide wall 202 forms a guide slope or curved surface.

[0117] As shown in Figure 3A, the seepage slit 10112 is positioned towards the guide wall 202 and maintains a set distance from it. Liquid slowly flowing from the seepage slit 10112 drips or flows onto the surface of the guide wall 202. Because the guide wall 202 is inclined, the liquid flows downwards along its surface under the influence of gravity and surface tension. This allows the liquid to flow more smoothly to the bottom of the storage tank 10, avoiding noise or splashing that might occur if the liquid drips directly down the vertical wall. Maintaining the set distance prevents the seepage slit 10112 from contacting the guide wall 202, allowing the liquid to drip smoothly.

[0118] As shown in Figures 7 and 8, in some embodiments, the water receiving tray 101 is further provided with a lifting part 1013. The lifting part 1013 extends toward the fan assembly 30, that is, it extends upward. The top of the lifting part 1013 is provided with a first opening 10131, which connects to the liquid storage chamber 103 of the housing 102.

[0119] The water tray 101 is provided with a lifting section 1013 extending towards the fan assembly 30. This increases the contact area for force application during assembly and disassembly, reduces the probability of slippage during lifting, increases the torque required for assembly and disassembly, and reduces the force required for lifting. The lifting section 1013 facilitates the user's grip and allows the water tray 101 (or the humidification assembly 40 along with it) to be lifted from the housing 102. The first opening 10131 at the top of the lifting section 1013 is used to prevent overflow. It can be understood that when water is added to the humidification device 1, if the water flow is too large, some liquid can overflow through the first opening 10131 and flow back to the liquid storage tank 10, thus preventing water overflow.

[0120] Furthermore, the top of the lifting part 1013 can be higher than the second periphery 10122 of the guide surface 1012, so that when the water level in the water receiving tray 101 is high, the liquid can overflow from the first port 10131 without affecting the flow-gathering effect of the confluence channel 10111.

[0121] As shown in Figures 7 and 9, in some embodiments, the humidification assembly 40 includes a wet curtain support 401 and a wettable substrate 402 disposed on the wet curtain support 401.

[0122] The evaporative cooling pad support 401 is used to support and fix the wettable substrate 402, maintaining the shape of the wettable substrate 402. The evaporative cooling pad support 401 includes a water distribution tray 403 located on top of the wettable substrate 402 and a support frame 405 supporting the wettable substrate 402. The water distribution tray 403 is used to evenly distribute the liquid delivered by the water pump assembly 20 to the entire top area of ​​the wettable substrate 402, so as to uniformly wet the wettable substrate 402.

[0123] As shown in Figure 8, the water distribution pan 403 has a water distribution channel 4031 for injecting water into the wettable substrate 402 and a water outlet 4041 connected to the water distribution channel 4031. The water outlet 4041 is connected to the water outlet of the water pump assembly 20 through a water supply pipe 404. The liquid pumped by the water pump assembly 20 first enters the water outlet 4041 of the water distribution pan 403, and then flows into the water distribution channel 4031.

[0124] The water distribution plate 403 is also provided with a plurality of water distribution holes 4039. The water distribution holes 4039 are located on the bottom wall of the water distribution plate 403 and are located in the water distribution channel 4031. The liquid in the water distribution channel 4031 can smoothly and evenly pass through the plurality of water distribution holes 4039 to wet the wettable substrate 402 below, thereby improving the uniformity of wetting of the humidification component 40 and improving the humidification efficiency and consistency of the effect.

[0125] As shown in Figure 9, in some embodiments, the water distribution plate 403 also includes an overflow hole and an overflow section 4033 located in the water distribution channel 4031.

[0126] The overflow hole is connected to the water receiving pan 101 below. When the liquid in the water distribution pan 403 temporarily accumulates due to excessive water pump flow, the excess liquid can overflow through the overflow hole and flow back to the water receiving pan 101, preventing the liquid level in the water distribution pan 403 from being too high and overflowing into an unintended area.

[0127] An overflow section 4033 surrounds the overflow hole. The overflow section 4033 can also abut against the fan assembly 30. Thus, the overflow section 4033 serves a dual purpose: firstly, it provides structural support for the fan assembly 30, enhancing the overall stability of the humidification device 1; secondly, by surrounding the overflow hole, the overflow section 4033 effectively raises the height of the overflow hole's opening. Only when the liquid accumulates in the water distribution channel 4031 and the liquid level rises above the top of the overflow section 4033 can the liquid flow over the edge of the overflow section 4033 into the overflow hole. This ensures that the water distribution tray 403 maintains sufficient water storage during normal operation to improve uniform water distribution.

[0128] As shown in Figures 6 and 7, in some embodiments, the water receiving tray 101 is also provided with an avoidance limit part 1014.

[0129] The water pump assembly 20 extends at least partially from the water tray 101 through the clearance and limiting portion 1014. The clearance and limiting portion 1014 may be a groove or notch on the water tray 101, the shape of which is adapted to the exposed portion of the water pump assembly 20. This allows the water pump assembly 20 to be securely snapped into the water tray 101. Specifically, the clearance and limiting portion 1014 may be located at the edge of the water tray 101, thereby improving the connection between the water pump assembly 20 and the power supply module 80 located at the periphery of the humidification assembly 40.

[0130] As shown in Figure 6, the water pump assembly 20 includes a power supply interface 201, which is at least partially exposed outside the clearance limiting part 1014. Thus, when the water receiving tray 101 is installed in place, the power supply interface 201 of the water pump assembly 20 is in a readily accessible position, facilitating connection with the power supply module 80 above. The clearance limiting part 1014 provides circumferential restraint to the water pump assembly 20, preventing it from moving or rotating on the water receiving tray 101, thereby making it easy to align the power supply interface 201 with the power supply module 80.

[0131] As shown in Figure 6, in some embodiments, the water receiving tray 101 is also provided with a second port 1015.

[0132] The outlet of the water pump assembly 20 is connected to the outlet 4041 of the water distribution pan 403 via the second port 1015. The second port 1015 is the channel through which the outlet of the water pump assembly 20 passes through the water receiving pan 101 to reach the upper humidification assembly 40. The position of the second port 1015 corresponds to the inlet of the water distribution pan 403.

[0133] The avoidance limiting part 1014 is further away from the central axis of the humidifier 1 than the second port 1015. In this way, the power supply interface 201 and the water outlet of the water pump assembly 20 are arranged at different radial positions on the water receiving tray 101, avoiding pipeline congestion and mutual interference, and facilitating assembly.

[0134] As shown in Figure 10, in some embodiments, the body 50 further includes a top cover assembly 501. The top cover assembly includes an air vent grille 5011, a display panel 5012, and a body top cover 5013.

[0135] The display panel 5012 is located on the top of the unit 50. The display panel 5012 is used to display the working status of the humidifier 1, such as humidity setting, current humidity, fan speed, timer and other information, to provide interactive feedback to the user.

[0136] The air outlet grille 5011 is located at the top of the unit 50 and serves as the channel for the exhaust of humidified air. The liquid inlet 503 is formed on the air outlet grille 5011. Integrating the liquid inlet 503 into the air outlet grille 5011 and reusing the air outlet grille 5011 makes the structure of the humidifier 1 more compact. The air outlet grille 5011 is located on the outer periphery of the display panel 5012.

[0137] The upper cover 5013 is connected to the outer periphery 50112 of the air outlet grille 5011. A button module 5015 is provided on the upper cover 5013, allowing users to power on / off, adjust modes, set parameters, or enter air-drying or drying modes. Placing the button module 5015 on the upper cover 5013 shortens the operating stroke, reduces the difficulty of operation and positioning, decreases the probability of accidental triggering, and improves the accuracy of operation and positioning.

[0138] As shown in Figure 10, in some embodiments, the body 50 further includes an air inlet housing 502. The air inlet housing 502 is connected to the outer periphery of the upper cover 5013 and extends along the height direction of the humidification device 1. The air inlet housing 502 is provided with a plurality of air inlet holes 5021, which can be arranged in an array to form an air inlet area. This air inlet area corresponds to the humidification component 40, so that outside air can enter through these holes and flow to the area where the humidification component 40 is located.

[0139] The air inlet housing 502 is detachably disposed in the liquid storage tank 10, so that when the humidification component 40 and the liquid storage tank 10 need to be cleaned, the body 50 can be lifted to separate the air inlet housing 502 from the liquid storage tank 10, thereby improving the maintainability of the humidification device 1.

[0140] As shown in Figures 3A and 11, in some embodiments, the fan assembly 30 includes an air guide bracket 303 and a motor 304.

[0141] The air guide bracket 303 is the housing of the fan assembly 30, and it forms a motor cavity 3031 for accommodating and protecting the motor 304. The motor 304 and the power module 60 are disposed within the motor cavity 3031. The power module 60 is used to supply power to the motor 304, and the power module 60 may include local power conversion and control modules that the fan assembly 30 itself may need, as well as the main power supply for the entire humidification device 1.

[0142] In some embodiments, as shown in Figures 3A and 11, the air guide bracket 303 also forms a first conduit channel 3032 communicating with the motor cavity 3031. A first conductive wire 801 connected to the power module 60 extends out of the fan assembly 30 through this first conduit channel 3032. The first conductive wire 801 is used to supply power to the button module 5015 on the body 50 and transmit control signals. By providing a dedicated first conduit channel 3032, the power inside the fan assembly 30 is extracted to support the power supply for the buttons, displays, and other functions of the body cover 5013, reducing external wiring and making the wiring inside the humidifier 1 neat and reliable.

[0143] As shown in Figures 3A and 5, in some embodiments, the air guide bracket 303 also forms a second pipeline channel 3033.

[0144] A second conductive wire 802, connected to the power module 60, extends out of the fan assembly 30 through the second conduit channel 3033. This second conductive wire 802 is used to supply power to the water pump assembly 20. Similar to the first conduit channel 3032, the second conduit channel 3033 provides a dedicated path for the power supply line of the water pump assembly 20, reducing the risk of cable wear or interference.

[0145] As shown in Figures 3A and 12, in some embodiments, the air guide bracket 303 further includes a motor compartment cover 3034 covering the motor cavity 3031. The display panel 5012 is covered by the motor compartment cover 3034.

[0146] The motor compartment cover 3034 is used to enclose the motor cavity 3031, protecting the internal motor 304 and power module 60 from dust, moisture, or external forces. The display panel 5012 is mounted on the outside of the motor compartment cover 3034. The motor compartment cover 3034 serves both as a protective cover for the motor cavity 3031 and as a mounting base for the display panel 5012, eliminating the need for a separate support structure for the display panel 5012, thus reducing the number of parts and assembly complexity.

[0147] To help users better maintain the hygiene of the humidifier and improve its ease of use and cleanliness, as shown in Figures 1, 3A, and 11, the water pump assembly 20 is detachably installed inside the liquid storage tank 10 to draw liquid from the tank 10 and transport it to the humidification component 40 of the humidifier. As shown in Figure 13, the bottom wall of the tank body 102 of the liquid storage tank 10 includes a limiting recess 1021, which is a region recessed downward from the surface of the bottom wall. That is, along the height direction or vertical direction of the humidifier 1, the bottom surface of the limiting recess 1021 is lower than the bottom wall of the liquid storage tank 10. The shape of the limiting recess 1021 can be adapted to the lower contour of the water pump assembly 20.

[0148] To improve the stable positioning of the water pump assembly 20, at least a portion of the water pump assembly 20, namely the lower part of the water pump assembly 20, can be inserted into and accommodated within the limiting recess 1021. This limiting fit allows the inner wall of the limiting recess 1021 to circumferentially limit the lower part of the water pump assembly 20, preventing the water pump assembly 20 from rotating or shifting horizontally within the liquid storage chamber 103, thus maintaining the water pump assembly 20 in the predetermined installation orientation.

[0149] As shown in Figures 13, 14, and 15, the top of the housing 102 of the liquid storage tank 10 has a first limiting part 1022. The first limiting part 1022 is a protrusion or flange extending from the inner wall of the liquid storage tank 10, radially towards the central axis of the liquid storage tank 10, into the interior of the liquid storage tank 10. "Radial" can be understood as a direction perpendicular to the central axis of the humidifying device 1, pointing outwards or inwards.

[0150] As shown in Figures 15, 16, and 17, the water pump assembly 20 includes a second limiting portion 203. The second limiting portion 203 corresponds to the first limiting portion 1022. When the water pump assembly 20 is installed into the storage tank 10, the lower part of the water pump assembly 20 enters the limiting recess 1021 on the bottom wall of the storage tank 10, and the second limiting portion 203 of the water pump assembly 20 engages or contacts the first limiting portion 1022 at the top of the storage tank 10. The limiting cooperation of the first limiting portion 1022 and the second limiting portion 203 constrains the water pump assembly 20 along the height direction (i.e., the vertical direction) of the storage tank 10, preventing the water pump assembly 20 from shifting vertically. The second limiting portion 203 can be constructed as a protrusion or a flange.

[0151] As shown in Figure 15, the first limiting part 1022 extends radially into the interior of the liquid storage chamber 103, forming a limiting structure extending horizontally. The second limiting part 203 can also be constructed as a protrusion. When it is necessary to disassemble the water pump assembly 20, the user applies a horizontal thrust toward the center of the liquid storage tank 10 to the water pump assembly 20, which causes a radial misalignment between the second limiting part 203 and the first limiting part 1022, thereby releasing the vertical locking constraint between the two.

[0152] No tools are needed to disassemble the water pump assembly 20; the user can remove it from the reservoir 10 with one hand. The user should gently push the water pump assembly 20 inwards to release the engagement of the first limiting part 1022 with the second limiting part 203, and then pull the water pump assembly 20 upwards to separate it from the limiting recess 1021 on the bottom wall of the reservoir 10. This allows for quick and easy disassembly of the water pump assembly 20. For assembly, the process is reversed. The lower part of the water pump assembly 20 is aligned with and placed into the limiting recess 1021, and then the water pump assembly 20 is pushed outwards to engage the second limiting part 203 with the first limiting part 1022. This can also be done with one hand.

[0153] Thus, the humidifier 1 provided in this embodiment forms multiple positioning and stable constraints on the water pump assembly 20 through the limiting recess 1021 on the bottom wall of the liquid storage tank 10 and the limiting cooperation between the lower part of the water pump assembly 20, and the engagement between the first limiting part 1022 and the second limiting part 203 on the top of the liquid storage tank 10. This multiple limiting method not only improves the stability of the relative position of the water pump assembly 20 and the liquid storage tank 10 during operation, but also allows for quick disassembly and assembly of the water pump assembly 20 without tools, with the user able to do so with one hand by simply pushing and lifting it, thus improving the usability and maintenance convenience of the humidifier 1. At the same time, the convenient disassembly method encourages users to perform regular cleaning, reducing the risk of scale buildup and microbial growth inside the liquid storage tank 10, thereby improving the long-term hygiene and air cleanliness of the humidifier 1.

[0154] As shown in Figures 13 and 15, in some embodiments, the liquid storage tank 10 includes an opening 104 communicating with the liquid storage cavity 103, and a first limiting portion 1022 is formed at the opening 104 and extends circumferentially along the liquid storage tank 10 to form a retaining edge.

[0155] In addition to providing vertical restriction for the water pump assembly 20, the first limiting part 1022 can also be reused as a waterproof guard for the liquid storage tank 10. When the liquid storage tank 10 needs to be moved, the first limiting part 1022, which surrounds the circumference of the liquid storage tank 10, can prevent the humidifying liquid from flowing out through the opening 104 of the liquid storage tank 10.

[0156] Thus, without the need to add any additional parts, the first limiting part 1022 can not only maintain the structure of the water pump assembly 20, but also improve the protective performance of the liquid storage tank 10, further enhancing the practicality and reliability of the humidification device 1.

[0157] As shown in Figures 16 and 17, in some embodiments, the pump assembly 20 includes a pusher 204 that protrudes from the reservoir 10. Vertically, the pusher 204 may extend above the top edge of the reservoir 10 and the first limiting portion 1022.

[0158] When disassembling the water pump, the user can access and apply force to the pusher 204. The user can easily push the pusher 204 inward and lift it upward without having to insert their fingers into the reservoir 10 or touch other parts.

[0159] When the water pump assembly 20 is in the working position, the first limiting part 1022 is farther away from the bottom wall of the liquid storage tank 10 than the second limiting part 203, so as to limit the water pump assembly 20 in the height direction.

[0160] As shown in Figure 15, the first limiting part 1022 can form a structural constraint on the water pump assembly 20 from above, thereby improving the reliability of limiting the water pump assembly 20 along the height direction and preventing the water pump assembly 20 from moving upward due to vibration or movement during use. The first limiting part 1022 is positioned above the second limiting part 203, meaning that the first limiting part 1022 uses its spatial position to block the second limiting part 203 to longitudinally limit the water pump assembly 20. Compared to the snap-fit ​​limiting method that relies on elastic deformation, the cooperation between the first limiting part 1022 and the second limiting part 203 eliminates the risk of engagement failure caused by fatigue, creep, or stress relaxation of the elastic material. Even under long-term use and frequent disassembly / reassembly conditions, a consistent limiting effect can be maintained, improving the durability of the humidification device 1.

[0161] When the pushing part 204 is subjected to a radial pushing force, the second limiting part 203 separates from the first limiting part 1022, and when the water pump assembly 20 is subjected to a lifting force in the height direction, the water pump assembly 20 moves out of the limiting recess 1021 and becomes detachable relative to the liquid storage tank 10.

[0162] Thus, the disassembly of the water pump assembly 20 can be completed in two consecutive steps: First, when the pushing part 204 is subjected to a radial pushing force along the reservoir 10, the pushing part 204 undergoes a small horizontal displacement, causing the second limiting part 203 to disengage or contact the first limiting part 1022. Then, when the water pump assembly 20 is subjected to a lifting force along the height direction, the lower part of the water pump assembly 20 can be disengaged from the limiting recess 1021, thereby completing the disassembly from the reservoir 10.

[0163] As shown in Figures 16 and 17, in some embodiments, a mating gap 205 is formed between the pushing part 204 and the second limiting part 203 along the height direction.

[0164] With the water pump assembly 20 in the working position, the first limiting part 1022 extends into the mating gap 205. Along the height direction, the thickness of the mating gap 205 can be slightly greater than the thickness of the first limiting part 1022, thereby improving the limiting function of the first limiting part 1022 while providing space for slight tilting of the water pump assembly 20 during disassembly. When the user applies a radial thrust to the pushing part 204, the water pump assembly 20 can undergo a slight angular deflection, allowing the user to easily release the limiting state between the first limiting part 1022 and the second limiting part 203.

[0165] As shown in Figures 13 and 15, in some embodiments, the limiting recess 1021 includes a limiting sidewall 10211. The limiting sidewall 10211 is opposite to the sidewall of the liquid storage tank 10.

[0166] When the pusher 204 is subjected to a pushing force but not a lifting force, the limiting sidewall 10211 abuts against the water pump assembly 20 to return the water pump assembly 20 to the working position.

[0167] When the user applies a radial pushing force to the pushing part 204 but has not yet applied an upward pulling force, the water pump assembly 20 will rotate slightly. At this time, the limiting sidewall 10211 of the limiting recess 1021 will abut against the outer surface of the water pump assembly 20. The abutment between the limiting sidewall 10211 and the water pump assembly 20 will generate a reverse force on the water pump assembly 20, pushing the water pump assembly 20 back to its initial, stable working position.

[0168] Thus, when a user accidentally applies a radial thrust to the pushing part 204, causing the first limiting part 1022 to release its restriction on the second limiting part 203, as long as the user does not continue to pull the water pump assembly 20, the water pump assembly 20 will not remain stuck in the wrong position or tip over due to the thrust. Instead, it will automatically reset to its initial position under the abutment of the limiting sidewall 10211. The limiting recess 1021 is provided with the limiting sidewall 10211, which can constrain the deflection angle of the water pump assembly 20 under the action of unexpected radial thrust, automatically correct the assembly position deviation, reduce the secondary adjustment steps in the reset process, and improve the stability of assembly reset.

[0169] As shown in Figures 15, 16, and 17, in some embodiments, the pump assembly 20 includes a sliding fit portion 206. The sliding fit portion 206 is connected to the side wall and bottom wall of the pump assembly 20 facing the reservoir 10 via an arc transition. That is, the sliding fit portion 206 connects the side wall surface and the bottom wall surface of the pump assembly 20 continuously through its own smooth arc-shaped surface.

[0170] When the pusher 204 is subjected to a pushing force, or during the process of the water pump assembly 20 resetting to the working position, the sliding mating part 206 can slide along the side wall of the liquid storage tank 10.

[0171] When the user applies a radial pushing force to the pushing part 204, the water pump assembly 20 will deflect to a certain extent. At this time, the sliding fit part 206 contacts the surface of the side wall of the liquid storage tank 10 and can slide smoothly upward along its surface. The arc-shaped sliding fit part 206 reduces the frictional resistance and motion interference during the sliding process of the water pump assembly 20, reduces the friction coefficient of sliding along the side wall of the liquid storage tank 10, reduces the probability of motion jamming, and makes the resistance distribution uniform during the sliding process.

[0172] Furthermore, during the process of the water pump assembly 20 automatically resetting to the working position due to the aforementioned reset function, the sliding engagement portion 206 also slides downward along the inner surface of the side wall of the liquid storage tank 10. The arc-shaped contour of the sliding engagement portion 206 can guide the water pump assembly 20 to accurately return to the initial working position and adaptively correct for possible minor positional deviations, so that the bottom of the water pump assembly 20 falls into the limiting recess 1021, and the second limiting portion 203 at the top resumes its engagement with the first limiting portion 1022, thereby enabling the water pump assembly 20 to reset consistently.

[0173] Thus, by providing a sliding fit part 206, the water pump assembly 20 optimizes the user's operating feel when pushing the water pump assembly 20, reduces the possibility of the water pump assembly 20 getting stuck on the side wall of the liquid storage tank 10, and further improves the accuracy of the water pump assembly 20's reset process.

[0174] As shown in Figures 16 and 17, in some embodiments, the number of second limiting portions 203 is at least two, and the at least two second limiting portions 203 are arranged at intervals along the circumferential direction.

[0175] By arranging at least two second limiting parts 203 circumferentially along the humidification device 1, multiple limiting points can be formed in the circumferential direction of the water pump assembly 20, so as to form a more balanced and stable cooperation relationship with the first limiting part 1022 on the top of the liquid storage tank 10.

[0176] During disassembly, when the user applies radial thrust to the pushing part 204, the multiple spaced second limiting parts 203 can simultaneously disengage from the first limiting part 1022, reducing the possible skewing or jamming caused by unilateral disengagement.

[0177] In some embodiments, as shown in FIG18, the liquid storage tank 10 includes an elastic buckle 105. The elastic buckle 105 has a certain elastic deformation capability, and can undergo temporary displacement or shape change under the action of external force, and return to its initial state after the external force is removed.

[0178] In some embodiments, as shown in Figures 16 and 17, the pusher 204 includes an engaging portion 2041 capable of engaging with the resilient latch 105. The engaging portion 2041 may be a groove structure formed on the sidewall of the pusher 204.

[0179] In some embodiments, the liquid storage tank 10 includes an assembly portion 1023 disposed on the first limiting portion 1022, the assembly portion 1023 extending in the height direction, and the assembly portion 1023 being used for assembly with the water receiving tray 101.

[0180] The assembly part 1023 forms clearance notches 1041 at both ends along the circumferential direction and extends into the interior of the liquid storage tank 10 at the clearance notches 1041. The elastic buckle 105 is formed on the part of the assembly part 1023 that extends into the liquid storage tank 10, so that the engaging part 2041 on the side wall of the water pump assembly 20 can face the elastic buckle 105 and be mutually limited by the elastic buckle 105.

[0181] As shown in Figure 18, the elastic buckle 105 can be a cantilever structure formed by partially hollowing out the assembly part 1023. The elastic buckle 105 may be provided with protrusions to adapt to the engaging part 2041 and form a limiting fit. The assembly part 1023 can be made of plastic material, so that the elastic buckle 105 has deformation properties.

[0182] The clearance notch 1041 provides the necessary space for the deformation of the elastic buckle 105 and the limiting engagement of the engaging part 2041, thereby ensuring smooth engagement and disengagement between the elastic buckle 105 and the engaging part 2041. Along the circumference of the liquid storage tank 10, the clearance notch 1041 corresponds to the opening 104 of the tank body 102.

[0183] Thus, the elastic buckle 105 can be positioned opposite the engaging portion 2041 on the side wall of the water pump assembly 20 via the mounting portion 1023. When the water pump assembly 20 is in the working position, the elastic buckle 105 can engage and lock with the engaging portion 2041, providing auxiliary fixation for the water pump assembly 20. When disassembling the water pump assembly 20, simply applying a radial thrust to the pushing portion 204 will cause the engaging portion 2041 to compress and deform the elastic buckle 105, thereby releasing the engagement.

[0184] As shown in Figures 15, 16 and 18, in some embodiments, the water pump assembly 20 includes a water inlet 207.

[0185] The water inlet 207 is in fluid communication with the liquid storage chamber 103 and is used to introduce liquid into the interior of the water pump assembly 20, thereby improving the water intake function. At least a portion of the water inlet 207 is exposed along the height direction through the limiting recess 1021. Since the limiting recess 1021 is a recessed area on the bottom wall of the liquid storage tank 10, when the liquid level in the liquid storage tank 10 drops, the humidifying liquid will collect and remain in the limiting recess 1021. By being exposed through the limiting recess 1021, the water inlet 207 can continuously allow the liquid collected in the recessed area to enter the water pump assembly 20.

[0186] In this way, the water pump assembly 20 can still draw water when the liquid level in the storage tank 10 is low, reducing the risk of air intake in the water pump assembly 20 and improving the working efficiency and reliability of the water pump assembly 20.

[0187] In some embodiments, the water inlet 207 includes a plurality of water inlet ports 2071. The lower edge of at least some of the water inlet ports 2071 is higher than or flush with the bottom wall of the liquid storage tank 10, and the lower edge of at least one water inlet port 2071 is lower than the bottom wall of the liquid storage tank 10.

[0188] Multiple water inlets 2071 are located at different water level heights, so that the water inlet 2071 located at the lower water level can preferentially draw in the liquid that gathers at the bottom of the limiting recess 1021. Even under extremely low liquid level conditions, the water pump assembly 20 can still improve the water suction function and reduce air intake.

[0189] The higher-positioned water inlet 2071 (the water inlet 2071 above the bottom wall of the storage tank 10) allows for water intake when the storage tank 10 is at the normal liquid level, ensuring sufficient liquid intake for the pump assembly 20. Simultaneously, the higher-positioned water inlet 2071 avoids scale buildup at the bottom of the storage tank 10, drawing in the cleaner middle layer of liquid, thus reducing the risk of wear or blockage of the pump assembly 20 due to the intake of sediment.

[0190] Thus, the combination of multi-stage water inlets 2071 not only improves the working reliability of the water pump assembly 20 at low liquid levels, but also enhances the water inlet efficiency of the water pump assembly 20 when it is at a normal water level in the storage tank 10, while also taking into account the anti-clogging function.

[0191] In some embodiments, as shown in FIG6, the humidifying device 1 further includes a water receiving tray 101 and a humidifying component 40. The humidifying component 40 is detachably disposed on the water receiving tray 101 and includes a water supply pipe 404, which passes through a pre-set second port 1015 or interface structure on the water receiving tray 101 and communicates with the water pump assembly 20.

[0192] To maintain the morphological stability of the wettable substrate in a wet state, the wettable substrate can be placed on the outside of the wet curtain support. The wet curtain support can be made of water-resistant plastic or metal materials to resist the deformation that may occur to the wettable substrate under hydration softening and airflow impact.

[0193] In addition, the humidification component 40 can also adopt a modular assembly structure composed of standard wettable substrate units, which not only facilitates manufacturing and user replacement, but also flexibly adapts to humidification devices 1 with different capacities and air duct requirements.

[0194] As shown in Figure 9, the humidification assembly also includes a water supply pipe 404. One end of the water supply pipe 404 can be detachably connected to the water outlet of the water pump assembly 20 via a quick connector, and the water outlet 4041 at the other end extends into the interior of the humidification assembly 40 and communicates with the liquid distribution plate 403 formed on the top of the wet curtain bracket, so as to evenly distribute the humidifying liquid pressurized and delivered by the water pump assembly 20 to the wettable substrate.

[0195] The water supply pipe 404 can be made of flexible or rigid pipe. A sealing ring or waterproof structure can be provided at the second opening 1015 of the water receiving tray 101 to prevent liquid from leaking from the connection of the water supply pipe 404 and thus reducing the water supply efficiency of the pump assembly 20.

[0196] The water tray 101 can be detachably attached to the top of the housing 102 of the liquid storage tank 10 to support the humidification component 40 and collect the liquid overflowing from the humidification component 40. The bottom of the water tray 101 may be provided with a flow guiding structure to guide the collected liquid back into the liquid storage chamber 103 of the liquid storage tank 10, so that the humidification liquid can be recycled.

[0197] In some embodiments, as shown in Figures 6, 19, and 20, the water receiving tray 101 includes a clearance limiting portion 1014. At least a portion of the water pump assembly 20 extends into the interior of the clearance limiting portion 1014 in the height direction, and the clearance limiting portion 1014 limits the water pump assembly 20 in the circumferential direction.

[0198] The pushing part 204 of the water pump assembly 20 extends into the interior of the avoidance and limiting part 1014. Through the cooperation between the inner wall of the avoidance and limiting part 1014 and the outer surface of the pushing part 204, the water receiving tray 101 can limit the rotation of the water pump assembly 20 in the circumferential direction, thereby improving the connection alignment and sealing reliability between the water outlet end of the water pump assembly 20 and the water supply pipe 404.

[0199] Thus, the avoidance limiting part 1014 and the limiting recess 1021 together constitute a coordinated limiting of the water pump assembly 20 in the circumferential direction, further enhancing the installation stability and vibration resistance of the water pump assembly 20 in the liquid storage tank 10.

[0200] In some embodiments, as shown in Figures 16, 17 and 6, the pump assembly 20 includes a power supply interface 201 extending out of the avoidance limit portion 1014.

[0201] With the water pump assembly 20 installed in the working position, the power supply interface 201 extends upward along the height direction to avoid the top of the limiting part 1014, thereby exposing the space above the water receiving tray 101 to connect with the power supply module 80 of the humidification device 1 located above the water receiving tray 101.

[0202] The power supply interface 201 is designed to be easily plugged into the power supply module 80 to improve the assembly efficiency of the water pump assembly 20. At the same time, the position of the power supply interface 201 above the water tray 101 can also reduce the risk of immersion of the power supply interface when liquid accumulates in the water tray 101, thereby improving the electrical safety of the humidification device 1.

[0203] As shown in FIG14, in some embodiments, the free end of the first limiting part 1022 extends along the height direction to form an assembly part 1023, and the water receiving tray 101 overlaps the assembly part 1023.

[0204] The assembly part 1023 allows the water tray 101 to be stably mounted above the liquid storage tank 10, and its weight is transferred to the tank body 102 of the liquid storage tank 10 through the assembly part 1023. The assembly part 1023 can also constrain the movement of the water tray 101 in the horizontal plane, thereby improving the structural stability of the humidification device 1.

[0205] In some embodiments, as shown in Figures 6, 19, and 20, the water receiving tray 101 includes a manifold 10111. The manifold 10111 is used to contain scale inhibitors.

[0206] Scale inhibitors can be in the form of solid particles, solid blocks, or gels. They can be chemical scale inhibitors with scale-removing properties, such as silica phosphate crystals, food-grade citric acid, and composite phosphate gels.

[0207] The humidifying liquid overflowing from the humidifying component 40 can converge into the manifold 10111 and interact with the scale inhibitor in the manifold 10111, at least part of the scale inhibitor is dissolved to form a solution with scale inhibition function.

[0208] The seepage slit 10112 allows the solution containing scale inhibitors to slowly flow out of the manifold 10111 and flow along the surface of the guide wall 202 under the action of gravity. The scale inhibitor liquid is guided back to the storage chamber 103 of the storage tank 10, and then enters the liquid circulation path of the humidification device 1.

[0209] Through this cycle, the scale inhibitor can continuously act on the entire liquid circuit, improving the scale protection of the water pump assembly 20, humidification assembly 40 and liquid storage tank 10, inhibiting the formation and accumulation of scale, maintaining the operating efficiency of the humidification device 1 and extending its service life.

[0210] As shown in Figures 3A and 6, in some embodiments, the guide wall 202 is inclined relative to the height direction. The inclined structure of the guide wall 202 can guide and buffer the liquid flowing along its surface, reduce the noise generated by the impact during the liquid flow, and thus improve the quiet operation of the humidification device 1.

[0211] In addition, the inclined design of the guide wall 202 allows the liquid to flow out of the surface of the guide wall 202 under the action of gravity, reducing the residual dripping liquid and scale deposition on the surface of the water pump assembly 20, which helps to keep the surface of the water pump assembly 20 clean.

[0212] As shown in Figures 3A, 19 and 20, in some embodiments, the manifold 10111 includes a sidewall opposite to the guide wall 202, and a seepage slit 10112 is disposed on the sidewall and extends to the bottom wall of the manifold 10111.

[0213] Since the seepage slot 10112 is located on the side wall facing the pump assembly 20 and extends to the bottom wall, the outflowing liquid can be guided to the surface of the guide wall 202 and flow along the inclined surface of the guide wall 202, further improving the guidance of the liquid flowing out of the seepage slot 10112.

[0214] The seepage slit 10112 extends to the bottom wall of the manifold 10111, allowing it to be located at the lowest point of the liquid within the manifold 10111. Under gravity, the liquid in the manifold 10111 can be drained as much as possible through the seepage slit 10112, thereby reducing liquid residue in the manifold 10111. This reduces the probability of stagnant water accumulating in the manifold 10111 and forming scale after evaporation, and also improves the efficiency of scale inhibitors.

[0215] As shown in Figures 3A and 8, in some embodiments, the bottom wall of the manifold 10111 is inclined relative to the horizontal plane, and the seepage slit 10112 is connected to the end of the bottom wall of the manifold 10111 near the liquid storage tank 10.

[0216] The inclined bottom wall of the manifold 10111 allows the liquid inside to flow naturally to the seepage joint 10112 under gravity and be discharged in a concentrated manner. This further reduces the amount of liquid residue in the manifold 10111, lowering the risk of evaporation and scale buildup caused by stagnant water.

[0217] In some embodiments, as shown in FIG9, the water receiving tray 101 is also provided with an anti-overflow baffle.

[0218] The overflow baffle extends along the height direction, with its upper edge higher than the opening of the manifold 10111, so that liquid overflowing from the humidification assembly 40 gathers into the manifold 10111. In another embodiment, as shown in FIG7, the overflow baffle can be the sidewall of the lifting part 1013.

[0219] The overflow baffle can be located around the periphery of the manifold 10111. The upper edge of the overflow baffle is higher than the opening of the manifold 10111, which can prevent the liquid overflowing from the humidification component 40 from spreading to areas outside the manifold 10111, so that the liquid gathers and is guided to the opening area of ​​the manifold 10111, thereby allowing the overflow liquid to be collected and fully contacted with the scale inhibitor in the manifold 10111.

[0220] In some embodiments, as shown in FIG15, the water pump assembly 20 includes a water pump housing 208 and a water level detection assembly 209 disposed within the water pump housing 208.

[0221] The water pump housing 208 includes a water pump chamber 2081, in which a water pump can be installed. A second limiting part 203 is provided on the water pump housing 208, and the water pump housing 208 is detachable from the liquid storage chamber 103.

[0222] The water level detection component 209 is integrated inside the water pump chamber 2081 of the water pump housing 208. The sensor of the water level detection component 209 can be connected to the liquid storage chamber 103 and the water inlet 207 to detect the water level status in the liquid storage tank 10, thereby improving the functions of water shortage protection and liquid level monitoring.

[0223] In order to improve the drainage performance of the fan assembly while taking into account the working efficiency of the humidification device, as shown in Figures 1 to 5, the humidification device 1 of the present application includes a body 10, and the body 10 includes an upper cover assembly 501.

[0224] The top cover assembly 501 may include the air outlet grille 5011, display panel 5012, and upper cover 5013 described in the aforementioned embodiments. The top cover assembly 501 includes a liquid inlet 503 (which can be used for exhaust) for the user to add liquid into the humidifier 1, and also serves as an air outlet. The top cover assembly 501 is located on top of the humidifier 1 and may include a display panel 5012 for user operation and an upper cover 5013 with a button module 5015. The top cover assembly 501 covers the area above the fan assembly 30, thus isolating the internal components of the humidifier 1 from the external environment.

[0225] The liquid inlet 503 can be disposed through the air outlet grille 501. There are multiple liquid inlets 503, which are arranged at intervals along the circumference of the fan assembly 30. The multiple liquid inlets 503 are arranged in a ring, so that the liquid inlets 503 form a ring layout in the air outlet grille 501. Users can access at least one liquid inlet 503 from different directions to add liquid, which improves the convenience of adding liquid to the humidifier 1.

[0226] As shown in Figures 3A, 11, and 12, the fan assembly 30 includes an air guide bracket 303 and a motor 304 and a fan wheel 306 disposed within the air guide bracket 303. The air guide bracket 303 is connected to a liquid injection port 503, allowing liquid injected from the liquid injection port 503 to enter the cavity 301 of the air guide bracket 303.

[0227] The output shaft of motor 304 is fixedly connected to the hub 3061 of impeller 306, and is used to provide power for the rotation of impeller 306. Motor 304 can be a DC brushless motor, and its speed is adjustable to adapt to different humidification air volume requirements.

[0228] As shown in Figure 22, the impeller 306 can be a centrifugal impeller, including a hub 3061 located at the center and multiple fan blades 3062 distributed circumferentially along the hub. The fan blades 3062 have a curved arc-shaped structure, which is beneficial for providing the wind pressure required to drive the airflow of the humidification device 1 with lower operating noise.

[0229] As shown in Figure 2, the air guide bracket 303 is provided with a channel opening 3035 communicating with the liquid injection port 503, so that the liquid injected from the liquid injection port 503 can enter the interior of the air guide bracket 303 through the channel opening 3035. The outline shape of the channel opening 3035 can be annular to correspond to the annular arrangement of the liquid injection ports 503 on the upper cover assembly 501.

[0230] As shown in Figure 23, the air guide bracket 303 includes an air guide ring 3036 and a motor bracket 3037 for mounting the motor 304. An annular channel opening 3035 is defined between the motor bracket 3037 and the air guide ring 3036. The air guide ring 3036 can be an annular cylindrical structure. The air guide ring 3036 guides the airflow generated when the impeller 306 rotates, causing it to flow in a predetermined direction and reducing the generation of eddies. The height of the air guide ring 3036 is greater than the height of the fan blades 3062 of the impeller 306, and its diameter is greater than the diameter of the impeller 306, so that it can completely surround the impeller 306.

[0231] As shown in Figure 23, the motor bracket 3037 is used to mount the motor 304, and the motor bracket 3037 is located in the central area of ​​the air guide ring 3036. An annular channel opening 3035 is located between the inner wall of the air guide ring 3036 and the outer edge of the motor bracket 3037. The annular channel opening 3035 allows liquid injected from the injection port 503 to flow into the inner cavity 301 of the fan assembly 30 through this channel opening 3035, and at least partially adhere to the wall forming the inner cavity 301 before flowing to the bottom of the air guide bracket 303, reducing concentrated liquid injection and improving water filling efficiency.

[0232] As shown in Figures 22 and 23, the air guide bracket 303 also includes a bottom shell 3038. The bottom shell 3038 is disposed below the air guide ring 3036 and connected to the lower edge of the air guide ring 3036, together forming a cavity 301 for accommodating the impeller 306. The bottom shell 3038 includes a drain hole 30381 and an annular guide portion 30382. The guide portion 30382 is used to receive liquid flowing in from the channel opening 3035 and guide it to the drain hole 30381.

[0233] A flow guide 30382 is formed on the inner bottom surface of the bottom shell 3038, and is an annular structure with a downward trend from the edge of the bottom shell 3038 towards the center. The first end of the flow guide 30382 is connected to the connection between the bottom shell 3038 and the air guide ring 3036, and the second end extends to the edge of the drain hole 30381. The diameter of the end of the flow guide 30382 near the air guide ring 3036 is approximately equal to the inner diameter of the air guide ring 3036, while the diameter of this end is larger than the diameter of the end near the drain hole 30381. This creates a structure where the flow guide 30382 converges from the periphery towards the center, allowing liquid from the annular channel opening 3035 to converge towards the drain hole 30381 in the center of the bottom shell 3038, reducing liquid residue within the bottom shell 3038.

[0234] The liquid storage tank 10 is located on the side of the fan assembly 30 away from the upper cover assembly 501, and is used to receive the liquid discharged from the drain hole 30381 and provide water source for the humidifier 1 when the humidifier 1 is working.

[0235] As shown in Figure 23, the flow guide 30382 includes a first flow guide section 30382a connected to the air guide ring 3036. The first flow guide section 30382a is an annular inclined surface surrounding the outside of the impeller 306. The first flow guide section 30382a extends obliquely relative to the central axis of the motor 304, and the end of the first flow guide section 30382a away from the air guide ring 3036 is closer to the central axis than the end connected to the air guide ring 3036. Since the end of the first flow guide section 30382a away from the air guide ring 3036 is closer to the central axis, it indicates that the first flow guide section 30382a has a radially converging shape. When the liquid flows along the surface of the first flow guide section 30382a, its flow path is naturally guided to the drain hole 30381 located in the central region, reducing the amount of liquid residue remaining in the bottom shell 3038.

[0236] The inclination angle of the first guide section 30382a relative to the horizontal plane allows the liquid to gain greater gravitational acceleration during flow, increasing its flow velocity. Furthermore, when the impeller 306 generates an upward airflow force, the downward gravitational component of the liquid along the incline overcomes this airflow force, allowing the liquid to be discharged smoothly. Simultaneously, the larger inclination angle reduces the influence of surface tension on liquid flow. The inclined extension of the first guide section 30382a also causes the guide portion 30382 to form a radially converging shape. This converging shape helps guide the liquid towards the drain hole 30381, reducing liquid diffusion and stagnation on the surface of the guide portion 30382.

[0237] The angle θ1 formed between the first guide section 30382a and the horizontal plane satisfies: 40°<θ1<65°.

[0238] When the included angle θ1 ≤ 40°, the inclination of the first guide section 30382a is relatively gentle. Although this provides a larger air intake area for the duct, the component of gravity along the slope is small when the liquid flows on the gentle slope, resulting in insufficient flow momentum. When the impeller 306 generates an upward airflow, this component of gravity is insufficient to overcome the upward thrust of the airflow on the liquid, causing the liquid to easily stagnate on the surface of the guide section 30382 or form a reciprocating flow, thus producing abnormal noise. At the same time, the gentle slope increases the contact area between the liquid and the surface of the guide section 30382, making the surface tension resistance effect more obvious and further slowing down the drainage speed.

[0239] When the included angle θ1 ≥ 65°, the first guide section 30382a tends to be steep. Although it can provide strong liquid discharge power, it will excessively encroach on the air intake space below the impeller 306, resulting in a reduction in the air duct area. Insufficient air intake area will increase air intake resistance, forcing the fan assembly 30 to operate under higher back pressure. This not only increases energy consumption and operating noise, but also affects the humidification efficiency of the humidification device 1 due to insufficient air volume.

[0240] The angular range of 40° < θ1 < 65° allows the fan assembly 30 to achieve a good balance between drainage performance and air intake requirements. Within this angular range, the inclined surface of the first guide section 30382a provides an appropriate gravitational component for the liquid flow. This component can overcome the interference of the upward airflow generated by the impeller 306 during operation and the surface tension of the liquid, allowing the liquid to flow stably and quickly towards the drain hole 30381 along the inclined surface even when the fan is running. At the same time, the fan assembly 30 also retains sufficient air intake channel area, reducing abnormal noise caused by liquid stagnation or vibration, and maintaining the normal operating performance of the humidification device 1.

[0241] Specifically, θ1 can be 47°, 48°, 50°, 53°, 55°, 57°, 60°, 63°, or 64°, etc.

[0242] Thus, the humidifying device 1 provided in this embodiment sets the angle θ1 between the first guide section 30382a of the guide section 30382 and the horizontal plane to 40° to 65°, providing a gravitational component sufficient to overcome the interference of the upward airflow of the impeller 306 and the surface tension of the liquid, allowing the liquid to flow stably and quickly along the inclined surface to the drain hole 30381. The inclined structure of the first guide section 30382a reduces the retention and oscillation of liquid on the surface of the guide section 30382, thereby helping to reduce the abnormal noise generated by the gas-liquid interaction during the operation of the impeller 306 and suppressing the risk of liquid splashing when the humidifying device 1 is started. At the same time, this angle range also meets the air inlet area requirements of the fan assembly 30, reducing the risk of increased air inlet resistance and energy consumption caused by the excessive steepness of the guide section 30382, and maintaining the working efficiency and operational reliability of the humidifying device 1 while simultaneously satisfying the drainage efficiency.

[0243] In some implementations, the angle θ1 formed between the first guide section 30382a and the horizontal plane satisfies: 45° < θ1 < 55°.

[0244] This angle range further improves the balance between the drainage performance and structural compactness of the fan assembly 30. When the included angle θ1 is in the range of 45° to 55°, the first guide section 30382a can provide a gravitational component force greater than the horizontal component force for the liquid flow, while reducing the probability of excessive increase in the axial dimension of the fan assembly 30 due to excessive tilt angle.

[0245] Specifically, θ1 can be 47°, 48°, 50°, 52°, 54°, etc.

[0246] As shown in Figures 23, 26, and 27, in some embodiments, the bottom shell 3038 is located at the bottom of the fan assembly 30. The bottom shell 3038 includes an air inlet grille 30383 located in its central region and a drain section 30384 disposed around the air inlet grille 30383. The drain section 30384 is connected to one end of the guide section 30382 opposite to the air guide ring 3036.

[0247] The air inlet grille 30383 includes multiple intersecting ribs forming a mesh structure. The air inlet grille 30383 communicates with the cavity 301 of the air guide bracket 303 to allow airflow, enabling the fan assembly 30 to draw air from inside the humidifier 1 while preventing larger foreign objects from entering.

[0248] The drain section 30384 is an annular structure surrounding the air inlet grille section 30383. The vertical projection of the drain section 30384 is located within the inner cavity of the humidification assembly 5, corresponding to the water receiving tray 31 area of ​​the lower liquid storage tank 10. The drain section 30384 is provided with multiple drain holes 30381, which are arranged at intervals along the circumference of the fan assembly 30, thereby improving the rapid drainage performance of the fan assembly 30. The number of drain holes 30381 can be 6 to 12, evenly distributed along the circumference of the drain section 30384, and the shape of each drain hole 30381 can be circular or elliptical.

[0249] Liquid flowing in from the channel opening 3035 flows into the drain channel 307 through the guide section 30382 and then into the drain section 30384. It flows out of the fan assembly 30 through the drain hole 30381. Multiple drain holes 30381 arranged circumferentially can collect liquid from all directions. The liquid then flows out through the multiple drain holes 30381 distributed circumferentially and drips into the water receiving tray 31 of the liquid storage tank 10 located directly below it, so that the liquid is stored.

[0250] In some embodiments, as shown in Figures 24 and 25, the flow guide 30382 further includes at least one second flow guide section 30382b. When there is only one second flow guide section 30382b, a stepped structure exists between the second flow guide section 30382b and the first flow guide section 30382a. When there are multiple second flow guide sections 30382b, a stepped structure exists between adjacent second flow guide sections 30382b.

[0251] Along the liquid flow direction, the downstream second guide section 30382b is connected to the drain section 30384. The guide section 30382 also includes a connecting section 30382c. The stepped structure is formed by connecting the connecting section 30382c, which extends along the height direction, to the second guide section 30382b or the first guide section 30382a. The stepped structure can be formed by connecting the connecting section 30382c and the first guide section 30382a, or by connecting the second guide section 30382b and the connecting section 30382c, so that a height difference is formed between two adjacent guide sections.

[0252] The second guide section 30382b is an annular inclined structure, and the angle θ2 formed between it and the horizontal plane can be the same as or different from the angle θ1 formed between it and the first guide section 30382a. When multiple second guide sections 30382b are provided, the inclination angles between the multiple second guide sections 30382b and the horizontal plane can be consistent or increase along the liquid flow direction.

[0253] By providing at least one second guide section 30382b, the guide section 30382 forms a multi-level stepped structure. The guide section 30382 is "stepped" in the following way: the outline of the guide section 30382 includes a first guide section 30382a and at least one second guide section 30382b arranged sequentially along the liquid flow direction (i.e., from the channel opening 3035 toward the drain hole 30381), and adjacent guide sections are connected in the vertical direction by a connecting section 30382c to form a height difference, so that the overall shape of the guide section 30382 presents a multi-level stepped structure.

[0254] In this way, the guide section 30382 divides the formed continuous large-area liquid film into multiple parts, which are distributed on the first guide section 30382a and each of the second guide sections 30382b, thereby reducing the adhesion area of ​​the liquid on any single guide section 2022. Furthermore, when the liquid flows from the first guide section 30382a to the second guide section 30382b, or flows between multiple second guide sections 30382b, each time it crosses the connecting section 30382c, it is accompanied by a conversion of gravitational potential energy into kinetic energy, resulting in accelerated flow. This segmented accelerated flow method helps the liquid continuously overcome surface tension, reducing the overall residence time and amount of liquid on the entire surface of the guide section 30382.

[0255] The user adds liquid to the humidifier 1 through the liquid inlet 503 of the top cover assembly 501. The liquid enters the housing through the channel 3035 of the air guide bracket 303, first falling onto the annular first guide section 30382a. Guided by the first guide section 30382a, the liquid flows to the first stepped structure, passes over the structure, and enters the second guide section 30382b. When multiple second guide sections 30382b are provided, the liquid will flow through each second guide section 30382b in sequence, and finally be discharged into the liquid storage tank 10 from the drain hole 30381 near the downstream second guide section 30382b.

[0256] Thus, the humidification device 1 provided in this application, by constructing the guide section 30382 as a multi-stage stepped structure including a first guide section 30382a with a specific tilt angle (40° to 65°) and at least one second guide section 30382b, not only enables the liquid to obtain sufficient gravity drive in the initial stage to overcome airflow interference, but also accelerates the liquid discharge through multi-stage potential energy conversion, thereby reducing liquid retention, suppressing aerodynamic noise and start-up splashing, and improving the operational reliability and service life of the humidification device 1.

[0257] The first guide section 30382a, the connecting section 30382c, and the second guide section 30382b are connected sequentially, such that in a cross-section along the central axis of the motor 304, the outline of the guide section 30382 exhibits at least one stepped structure. The stepped structure may include an adjacent guide section (the first guide section 30382a or the second guide section 30382b) and a connecting section 30382c. When the guide section 30382 includes multiple stepped structures, these stepped structures are arranged sequentially along the direction from the channel opening 3035 to the drain hole 30381.

[0258] Connecting section 30382c is used to connect two adjacent guide sections and creates a height difference between them. When liquid flows from the previous guide section to the connecting section 30382c, its flow direction changes upon encountering the connecting section 30382c. When the liquid crosses the connecting section 30382c and enters the next guide section, the flow velocity and shape of the liquid change under the influence of gravity due to the height difference between the two guide sections.

[0259] The flow guide 30382 includes at least one stepped structure, which divides the continuous liquid flow path into multiple segments, reducing the adhesion area of ​​the liquid on a single continuous surface. As the liquid flows through each stepped structure, it undergoes a change in flow state, which helps to locally disrupt the surface tension of the liquid, weaken the liquid's adhesion, and reduce its residue on the surface of the flow guide 30382. The continuous action of multiple stepped structures reduces the overall amount of liquid retained on the surface of the flow guide 30382 and promotes faster movement of the liquid towards the drain hole 30381.

[0260] In some embodiments, the height of the flow guide 30382 in the vertical direction is H, the radial width of the drain section 30384 in the horizontal direction is L1, and the radius of the air guide ring 3036 is L2.

[0261] The air intake radius of the air intake grille section 30383 is L3, where L3 = L2 - L1 - H × cosθ1, and 15mm ≤ H ≤ 45mm.

[0262] The dimensional relationships between L3, L2, L1, and θ1 establish a quantitative correlation between the flow guide section 30382 and the air inlet area. The range of values ​​for the height H of the flow guide section 30382 provides the necessary flow guide length for the flow guide section 30382, enabling the liquid to obtain a stable flow path, while reducing the excessive occupation of the internal space of the humidification device 1 by the fan assembly 30.

[0263] With the dimensions of the fan assembly 30 fixed, changes in the height H of the guide section 30382 and the inclination angle θ1 of the first guide section 30382a will affect the size of the inlet radius L3. Increasing the inclination angle θ1 can reduce the space occupied by the guide section 30382, which helps maintain the inlet area when the height H of the guide section 30382 is large. Under the premise of meeting drainage requirements, adjusting the height H of the guide section 30382 can change the size of the inlet radius L3.

[0264] In order to coordinate the drainage performance and air intake efficiency of the fan assembly 30, when it is necessary to improve the drainage effect, a larger tilt angle θ1 and a moderate height H can be used; when a larger air intake area is required, a smaller guide section 30382 height H can be selected on the premise of meeting the tilt angle requirements.

[0265] In this way, by adjusting the dimensional relationship between L3, L2, L1 and θ1, the drainage and air intake requirements of the fan assembly 30 are balanced in the structural design.

[0266] In some embodiments, the connecting segment 30382c is an annular structure extending axially along the fan assembly 30. The annular connecting segment 30382c is arranged around the central axis of the motor 304, and its extension direction is substantially parallel to the central axis.

[0267] Connecting section 30382c connects two adjacent guide sections, serving to link them. Because connecting section 30382c extends axially, it creates a height difference between adjacent guide sections. When liquid flows from the upstream guide section to connecting section 30382c, its flow direction changes.

[0268] The connecting section 30382c extends axially, which forms a drop boundary at its connection with the upstream guide section, allowing the liquid to fall smoothly into the downstream guide section, reducing the accumulation of liquid in the transition area, and enabling the liquid to smoothly and quickly enter the next stage guide section.

[0269] The height of the connecting section 30382c can be determined based on the height difference between adjacent guide sections, and its value can range from 2mm to 5mm. This height range allows the liquid to flow in a diversion manner without excessively increasing the axial dimension of the air guide bracket 303.

[0270] Thus, a stepped structure is formed by the guide section and the connecting section 30382c, and the guide section 30382 is provided with at least one stepped structure. Compared with a smooth and continuous guide surface, it can change the flow characteristics of the liquid, thereby reducing liquid residue and promoting rapid discharge, which in turn reduces aerodynamic noise during the operation of the impeller 306 and suppresses liquid splashing during equipment startup.

[0271] In some embodiments, at least two guide sections have a height difference along the central axis; along the direction of liquid flow, the downstream guide section is farther from the central axis than the upstream guide section. That is, the second guide section 30382b is farther from the central axis than the first guide section 30382a.

[0272] Adjacent annular guide sections (first guide section 30382a and second guide section 30382b, or two second guide sections 30382b) are connected by a connecting section 30382c. The connecting section 30382c is a roughly vertical annular surface that creates a height difference between two adjacent guide sections. When the liquid flows along the upstream guide section to its edge, its flow is interrupted by the obstruction of the connecting section 30382c, causing it to detach from the upstream guide section and fall downwards.

[0273] Because the downstream guide section convexes more radially than the upstream guide section, it provides the structural basis for the liquid to flow from the upstream guide section to the downstream guide section. The stepped structure extending radially outward causes the liquid to continuously change its flow state through multiple cascading processes. Each cascade imparts downward acceleration to the liquid, and the resulting momentum change when the liquid impacts the downstream guide section helps overcome the adhesion between the liquid and the upstream guide section.

[0274] In this way, by setting multiple guide sections that extend radially outward, the distribution of liquid on the surface of the guide section 30382 is more dispersed, which causes the liquid to flow to the drain hole 30381 at a faster speed, reducing the overall amount of liquid retained in the air guide bracket 303, thereby reducing the possibility of abnormal noise and liquid splashing during the operation of the impeller 306.

[0275] In some implementations, the guide sections extend radially from the inside out along the central axis at an angle. Different guide sections may have the same slope. Alternatively, the upstream guide section may have a smaller slope, while the downstream guide section may have a larger slope, allowing the liquid to achieve a faster flow velocity as it flows through the downstream guide section.

[0276] In some implementations, the guide sections can be arc-shaped surfaces radially from the inside to the outside along the central axis. The curvature of different guide sections can be kept consistent, or the upstream guide section can have a larger curvature while the downstream guide section has a smaller curvature, so that the liquid obtains a faster flow velocity when flowing through the downstream guide section.

[0277] In some embodiments, the guide section and the connecting section 30382c form an angle at the connection point. That is, the connection point between the connecting section 30382c and the guide section may not be a smooth transition, but rather maintain an angular shape.

[0278] When liquid flows through this angled junction, the direction of liquid flow changes abruptly. This abrupt change in the flow path can disrupt the surface tension of the liquid, weaken the adhesion of the liquid in the guide section, and prevent the continuous spread of the liquid film along the guide section.

[0279] Thus, compared to a smooth transition, the angled connection between the guide section and the connecting section 30382c causes a more drastic change in the liquid flow state and has a more obvious effect on disrupting the surface tension of the liquid, resulting in rapid drainage and further reducing the liquid residue on the guide section 30382.

[0280] In some embodiments, the impeller 306 includes an impeller 3063 disposed opposite to the airflow guide 30382. The impeller 3063 is connected to the side of the fan blade 3062 away from the upper cover assembly 501. The impeller 3063 includes a windward side and a leeward side, wherein the windward side faces the fan blade 3062 and the leeward side faces the airflow guide 30382.

[0281] The drain channel 307 is connected to the channel opening 3035 and the drain hole 30381, forming a path for liquid to be discharged from the air guide bracket 303. Part of the liquid entering from the injection port 503 can fall directly onto the windward surface of the impeller 3063 and be thrown to the air guide ring 3036 under centrifugal force, then flow downwards along the air guide ring 3036 to the guide section 30382. The other part of the liquid flows directly to the guide section 30382 through the drain channel 307.

[0282] By setting the impeller 3063, the liquid can be guided to flow along a predetermined path. The drainage channel 307 formed between the impeller 3063 and the guide section 30382 provides a more direct discharge path for the liquid, reducing the residence time of the liquid in the air guide bracket 303. It is particularly suitable for applications with high-speed impeller 306, and can improve the drainage performance of the humidification device 1 when the impeller 306 is running.

[0283] As shown in Figure 25, specifically, the second distance D2 between the downstream second guide section 30382b and the leeward side of the bladed disk 3063 is larger than the first distance D1 between the upstream first guide section 30382a and the leeward side of the bladed disk 3063. This dimensional relationship between the second distance D2 and the first distance D1 reduces the shear strength of the air from the rotating bladed disk 3063 to the second guide section 30382b, thereby reducing eddy noise generated by airflow disturbance. Simultaneously, because the second distance D2 is larger than the first distance D1, the discharge channel 307 forms a gradually widening channel along the liquid flow direction, which helps reduce the flow resistance of the liquid within the discharge channel 307, allowing the liquid to pass through the discharge channel 307 more smoothly.

[0284] It is understandable that when the liquid enters the relatively narrow drainage channel 307 area formed between the first guide section 30382a and the leeward side of the impeller 3063 from the relatively narrow drainage channel 307 area formed between the second guide section 30382b and the leeward side of the impeller 3063, the air trapped in the liquid is more likely to escape, and the possibility of bubbles being discharged with the liquid is reduced, thereby reducing the aerodynamic noise during the drainage process.

[0285] Thus, the aforementioned spacing variation structure causes the drainage channel 307 to form an expanding flow channel. This expanding flow channel can slow down and diffuse the liquid flow, causing the liquid to quickly leave the first guide section 30382a and be concentrated and guided to the second guide section 30382b. The flow channel expansion trend generated by the second guide section 30382b further buffers the liquid flow rate, thereby reducing liquid splashing and discharge noise while draining water quickly.

[0286] In some embodiments, the second gap D2 between the second guide section 30382b and the impeller 3063 satisfies: 7mm < D2 ≤ 10mm.

[0287] D2>7mm, meaning the minimum vertical distance between the second guide section 30382b and the impeller 3063 is greater than 7mm, ensuring that the drainage channel 307 formed by the second guide section 30382b and the impeller 3063 has sufficient flow area. This dimension reduces frictional resistance and wall adsorption effects during liquid flow, minimizing the risk of poor flow or blockage by impurities due to an overly narrow drainage channel 307, allowing the liquid to flow smoothly to the injection port 503.

[0288] If D2≤10mm, the maximum value of the drainage channel 307 formed by the second guide section 30382b is limited. Such a spacing can alleviate the problem of excessive liquid diffusion and loss of guiding concentration caused by excessive spacing between the second guide section 30382b and the impeller 3063.

[0289] In some embodiments, the first gap D1 between the first guide section 30382a and the impeller 3063 satisfies: 4mm≤D1≤7mm.

[0290] D1≥4mm, that is, the minimum vertical distance between the first guide section 30382a and the impeller 3063 is not less than 4mm. In this way, the drainage channel 307 formed by the first guide section 30382a has the necessary initial flow area, so that the liquid can enter smoothly and be constrained by the drainage channel 307, reducing the flow restriction of the liquid caused by the small size of the inlet end of the drainage channel 307.

[0291] If D1≤7mm, the initial distance between the first guide section 30382a and the impeller 3063 in the drainage channel 307 is limited, so that it forms an expansion relationship with the distance D2 of the second guide section 30382b, where D2>D1. This helps the liquid to diffuse smoothly during the flow in the drainage channel 307, providing a structural basis for the subsequent centralized discharge to the drainage hole 30381.

[0292] In some embodiments, the impeller 3063 extends at an angle relative to the central axis of the motor 304, such that the surface of the impeller 3063 forms a certain angle with the central axis.

[0293] In some embodiments, the connection point between the guide vane 30382 and the guide ring 3036 is higher than the free end of the impeller 3063. Because the connection point between the guide vane 30382 and the guide ring 3036 is relatively high, the edge of the guide vane 30382 extends above the end of the impeller 3063.

[0294] Specifically, the guide section 30382 is designed to be longer, allowing it to preferentially contact the liquid injected from the injection port 503. This guides the liquid into the drainage channel 307 formed by the cooperation of the impeller 3063 and the guide section 30382, reducing the risk of liquid splashing or deviating from its flow path and flowing towards the high-speed rotating fan blades 3062. Furthermore, when liquid is ejected from the outer edge of the impeller 3063, it first impacts the higher-positioned guide section 30382, and then flows downwards along its surface. This improves the drainage efficiency of the fan assembly 30.

[0295] As shown in Figures 28 and 25, in some embodiments, a baffle portion 30385 protruding toward the impeller 306 is provided between the air inlet grille portion 30383 and the drain portion 30384. The baffle portion 30385 has an annular structure and is arranged around the air inlet grille portion 30383.

[0296] The impeller 3063 has a windproof end 30631 facing the air inlet grille 30383, and the top of the baffle 30385 is closer to the upper cover assembly 501 than the windproof end 30631 of the impeller 3063.

[0297] The top of the baffle 30385 is higher than the bottom of the windshield end 30631 of the impeller 3063, and the baffle 30385 is closer to the central axis radially than the windshield end 30631. This creates a narrow, tortuous airflow path between the air inlet grille 30383 and the rotating impeller 3063. When the impeller 306 rotates, the baffle 30385 and the windshield end 30631 of the impeller 3063 work together to prevent the high-speed airflow inside the air guide bracket 303 from escaping upwards and entering the drain channel 307. The top of the baffle 30385 is higher than the bottom of the windshield end 30631 of the impeller 3063, forming an "air seal" barrier that reduces the impact and interference of the upward airflow on the downward liquid, allowing the liquid to fall smoothly under gravity and further reducing noise and liquid splashing caused by gas-liquid mixing.

[0298] The air inlet grille 30383 includes multiple vents communicating with the inner cavity of the air guide bracket 303. A baffle 30385 is located between the vents and the drain hole 30381. Thus, the baffle 30385 can prevent liquid falling from the guide section 30382 from splashing into or flowing towards the vents, preventing liquid from flowing back into the air guide bracket 303 through the vents, thereby reducing the risk of liquid erosion or operational interference to the impeller 306 and motor 304.

[0299] Thus, the partition 30385 simultaneously fulfills the dual functions of waterproofing and air sealing, simplifies the structure of the air guide bracket 303, and enables the fan assembly 30 to be miniaturized.

[0300] As shown in Figures 1 to 5 and Figure 21, this application provides a humidification device 1. The humidification device 1 includes a body 50, a liquid storage tank 10, a fan assembly 30, a humidification assembly 40, and a water pump assembly 20. As shown in Figure 22, the impeller 306 includes an impeller disk 3063, which can be a structure on the outer periphery of the impeller 306, used to connect multiple blades within the impeller 306. The impeller disk 3063 guides the movement of liquid and airflow.

[0301] As shown in Figures 23 and 26, the fan assembly 30 includes an air guide bracket 303. The air guide bracket 303 includes a flow guide portion 30382. An impeller 3063 cooperates with the flow guide portion 30382, forming an annular drainage channel 307 between them. This drainage channel 307 guides liquid from the injection port 503 downwards. The air guide bracket 303 also has a drainage hole 30381, located at the bottom of the air guide bracket 303 or on the side facing the liquid storage tank 10. The drainage channel 307 communicates with both the annular injection port 503 and the drainage hole 30381, thereby forming a liquid transport path from the injection port 503 to the liquid storage tank 10.

[0302] The windward side of the impeller 3063 guides the airflow to the channel opening 3035 of the windward support 303, while the leeward side, in conjunction with the guide section 30382, forms the liquid discharge channel 307. Thus, the impeller 3063 physically isolates the high-speed airflow area inside the windward support 303 from the liquid transport path, reducing the probability of gas-liquid interference. On one hand, the impeller 3063 guides the airflow to the channel opening 3035; on the other hand, the impeller 3063, together with the guide section 30382, forms a flow channel for the liquid, improving the structural utilization rate of the windward support 303.

[0303] In the actual operation of the humidifier 1, the drain channel 307 needs to meet two requirements: First, the drain channel 307 can isolate the strong airflow generated by the fan assembly 30 to prevent the airflow from interfering with or even hindering the downward flow of the liquid. Second, the drain channel 307 needs to provide a sufficiently unobstructed path for the liquid, allowing it to quickly pass through the air guide bracket 303 by gravity, reducing the accumulation of liquid in the fan assembly 30. As shown in Figure 24, in a vertical section passing through the axis of the fan assembly 30, the diameter ratio of the impeller 3063 to the guide section 30382 is W. This diameter ratio W satisfies: 0.78 < W < 0.88. This set section perpendicular to the axis of the fan assembly 30 passes through the guide section 221 and the impeller 3063 radially along the fan assembly 30.

[0304] For example, in a cross section passing through the axis of the fan assembly 30, the diameter D3 of the impeller 3063 is 134 mm, the diameter D4 of the guide section 30382 is 160 mm, and the diameter ratio W between the impeller 3063 and the guide section 30382 is 0.83.

[0305] For example, in a cross section along the axis of the wind turbine assembly 30, the diameter D3 of the impeller 3063 is 138 mm, the diameter D4 of the guide section 30382 is 162 mm, and the diameter ratio W between the impeller 3063 and the guide section 30382 is 0.85.

[0306] When W > 0.78, meaning the diameter ratio between the impeller 3063 and the guide section 30382 is greater than 0.78, the drainage channel 307 formed between the impeller 3063 and the guide section 30382 has a relatively small radial clearance. This increases the flow resistance to radial backflow of airflow to a certain extent, thereby preventing the high-pressure airflow generated by the high-speed rotation of the impeller 306 from escaping upwards from the inner cavity of the air guide bracket 303. Thus, the impact of the airflow on the downward-flowing liquid is weakened, reducing the risk of splashing, atomization, or deviation in flow direction due to aerodynamic interference. Consequently, the liquid flows downwards smoothly and centrally mainly due to gravity, which not only improves drainage efficiency but also eliminates abnormal noise caused by gas-liquid mixing and the risk of "spraying" droplets carried to the outlet by the airflow.

[0307] A W < 0.88, meaning the diameter ratio between the impeller 3063 and the guide section 30382 is less than 0.88, prevents the impeller 3063 and the guide section 30382 from being too close, thus reducing the risk of excessively small radial clearance in the drain channel 307. Sufficient clearance ensures the flow area of ​​the drain channel 307 is not too small, thereby reducing the probability of adsorption effects (capillary action) between the liquid and the wall surface when the liquid flows within the drain channel 307. This allows the liquid to maintain a high flow velocity under gravity, quickly flowing through the air guide bracket 303 and smoothly towards the drain hole 30381. Simultaneously, W < 0.88 relaxes the requirements for machining accuracy and assembly tolerances of the air guide bracket 303, improving production feasibility and the reliability of the humidification device 1.

[0308] Thus, in the humidifier 1 provided in this embodiment, the user adds liquid through the liquid inlet 503 of the upper cover assembly 501. The liquid flows sequentially through the drain channel 307 and the drain hole 30381 on the air guide bracket 303, and flows into the liquid storage tank 10, thereby improving the humidification function of the humidifier 1. The diameter ratio W of the impeller 3063 forming the drain channel 307 and the guide part 30382 is controlled between 0.78 and 0.88, which can reduce the airflow interference encountered by the liquid when passing through the air guide bracket 303. The liquid can be quickly and stably transported to the liquid storage tank 10 by gravity, reducing the risk of water accumulation in the air guide bracket 303, so that the humidifier 1 can still perform water filling operation when performing humidification operation.

[0309] In some embodiments, as shown in FIG24, the outlet area of ​​the outlet end 3072 of the drainage channel 307 is larger than the inlet area of ​​the inlet end 3071 of the drainage channel 307. The inlet end 3071 refers to the starting part of the drainage channel 307 that connects with the injection port 503, and the outlet end 3072 refers to the ending part of the drainage channel 307 that connects with the drainage hole 30381. The outlet area and the inlet area refer to the cross-sectional area perpendicular to the direction of liquid flow.

[0310] The drainage channel 307 can converge and guide the potentially dispersed liquid flowing in from the injection port 503. The drainage channel 307 has an expanding flow channel structure, with its flow area increasing from top to bottom. Thus, as the liquid flows through the drainage channel 307, the flow pattern stabilizes with the increased flow area, allowing for a more concentrated and stable flow. This controls the liquid's discharge trajectory, guiding it into the drainage hole 30381.

[0311] In some embodiments, as shown in Figures 21 and 22, the air guide bracket 303 includes an air guide ring 3036. The air guide ring 3036 has a cavity 301 and is connected to the side of the upper cover assembly 501 away from the central axis of the humidifier 1.

[0312] The air guide ring 3036 is disposed on the outside of the liquid injection port 503. The air guide ring 3036 helps to guide the liquid from the liquid injection port 503 into the liquid injection port 503 and transport it towards the liquid discharge channel 307, so as to guide the liquid flowing from the liquid injection port 503 downward. In addition, the air guide ring 3036 is arranged around the central axis of the humidification device 1, which improves the isolation between the water circuit and the electrical components outside the fan assembly 30, and reduces the risk of short circuit caused by liquid contact with electrical components.

[0313] In some embodiments, as shown in Figures 20, 26, and 27, the air guide bracket 303 further includes a bottom shell 3038. The bottom shell 3038 is connected to the air guide ring 3036, and the bottom shell 3038 includes a guide portion 30382 that is inclined relative to the central axis and extends toward the upper cover assembly 501. A drainage channel 307 is formed between the guide portion 30382 and the impeller 3063.

[0314] The guide section 30382, which extends at an angle relative to the central axis, cooperates with the blade disk 3063 of the impeller 306 to form an annular drainage channel 307 between the two guide sections. The angled extension structure can guide and converge the downward liquid. By utilizing the liquid's own gravity and the shape of the angled guide surface of the second guide surface, the liquid flows smoothly and centrally to the drainage hole 30381, further improving the liquid conveying efficiency and the controllability of the flow trajectory, and reducing splashing and stagnation during the flow process.

[0315] In some embodiments, the impeller 306 includes a plurality of blades 3062, and an impeller disk 3063 is connected to the outside of the plurality of blades 3062, the impeller disk 3063 being inclined relative to the central axis and extending toward the upper cover assembly 501.

[0316] The bladed disk 3063, extending at an incline relative to the central axis, cooperates with the guide section 30382 to form an annular drainage channel 307 between the bladed disk 3063 and the guide section 30382. When the bladed disk 3063 rotates with the impeller 306, the inclined structure of the bladed disk 3063 can guide the liquid entering the drainage channel 307, guiding the liquid to flow downward along the incline, so that the liquid flows more concentratedly towards the drainage hole 30381.

[0317] In some embodiments, as shown in FIG21, the connection between the air guide 30382 and the air guide ring 3036 is higher than the free end of the impeller 3063. The free end of the impeller 3063 is its end edge extending toward the air guide bracket 303 and away from the blade connection.

[0318] Because the connection point between the guide section 30382 and the guide ring 3036 is relatively high, the edge of the guide section 30382 extends above the free end of the impeller 3063. Specifically, the guide section 30382 is designed to be longer, allowing it to preferentially contact the liquid injected from the injection port 503. This guides the liquid into the drainage channel 307 formed by the impeller 3063 and the guide section 30382, reducing the risk of liquid splashing or deviating from its flow path and flowing towards the high-speed rotating blades. This not only reduces the noise generated by the liquid hitting the impeller but also reduces the probability of rotational imbalance caused by water on the impeller.

[0319] In some embodiments, as shown in Figures 22, 24, and 26, the flow guide 30382 includes a second flow guide section 30382b and a first flow guide section 30382a connected to each other. The connection between the first flow guide section 30382a and the second flow guide section 30382b forms a bend angle 3038, i.e., a stepped structure.

[0320] The first guide section 30382a is closer to the upper cover assembly 501 than the second guide section 30382b, and the second guide section 30382b is closer to the central axis than the first guide section 30382a.

[0321] The bend angle 30386 between the second guide section 30382b and the first guide section 30382a causes the guide section 30382 to form a "steep slope". This bend angle 30386 increases the constraint on the liquid flow path and the liquid discharge speed by changing the direction of liquid flow.

[0322] Specifically, the bend angle 30386 between the second guide section 30382b and the first guide section 30382a disrupts the adhesion tendency of the liquid on the inner wall of the guide section 30382, causing the liquid to quickly detach from the surface of the first guide section 30382a and converge towards the area of ​​the second guide section 30382b, thereby reducing the adhesion and retention of liquid in the internal area of ​​the air guide bracket 303. It is understood that on a smooth surface, liquid is easily affected by surface tension and adheres to the wall, forming a slowly moving liquid film. This causes liquid to accumulate in the low-lying areas of the drain channel 307, preventing the liquid from quickly draining to the drain hole 30381. However, in this embodiment, the bend angle 30386 on the guide section 30382, through its abrupt geometric shape, breaks the aforementioned adhesion tendency of the liquid, making it easier for the liquid to detach from the wall of the guide section 30382 under its own kinetic energy and gravity, producing an "accelerated falling" effect.

[0323] This "accelerated descent" effect makes the liquid flow direction more defined and concentrated, inhibiting the liquid from spreading in all directions, thereby increasing the overall flow rate of the liquid discharged from the drainage channel 307. Actual measurements show that the liquid can pass through the air guide bracket 303 and reach the liquid storage tank 10 in 3 to 5 seconds, reducing the risk of liquid accumulating in the air guide bracket 303 and being splashed by the high-speed rotating impeller 306, thereby reducing operating noise, preventing liquid splashing, and improving drainage reliability.

[0324] In some embodiments, the second guide section 30382b is inclined relative to the central axis and extends toward the upper cover assembly 501, and the first guide section 30382a is inclined relative to the central axis and extends toward the upper cover assembly 501.

[0325] As shown in Figure 25, along the radial direction of the drainage channel 307, there is a second distance D2 between the second guide section 30382b and the impeller 3063, and a first distance D1 between the first guide section 30382a and the impeller 3063, where D1 < D2.

[0326] The radial direction of the drainage channel 307 can be understood as the width direction of the drainage channel 307. The second spacing D2 can be understood as the minimum vertical distance between the second guide section 30382b and the impeller 3063. The first spacing D1 can be understood as the minimum vertical distance between the first guide section 30382a and the impeller 3063.

[0327] The aforementioned spacing variation structure creates an expanding flow channel in the radial direction for the drainage channel 307. Specifically, the flow area of ​​the drainage channel 307 increases from the first guide section 30382a to the second guide section 30382b. This expanding flow channel can decelerate and diffuse the liquid flow: when the liquid flows from the region of the first guide section 30382a with a smaller spacing to the region of the second guide section 30382b with a larger spacing, the increased flow area reduces the liquid velocity, helping to stabilize the flow. This deceleration effect, combined with the "accelerated descent" effect generated by the aforementioned bending angle 30386, causes the liquid to quickly detach from the first guide section 30382a and be concentrated and guided to the second guide section 30382b. The expansion trend of the flow channel generated by the second guide section 30382b further buffers the liquid velocity, improving rapid drainage while further reducing liquid splashing and discharge noise, enhancing the overall controllability and reliability of the drainage process.

[0328] To enable the humidifier to collect and guide the liquid dripping during top water addition, reducing liquid splashing and improving the reliability of the humidifier, as shown in Figures 1 to 5, the humidifier 1 of this embodiment includes a top cover assembly 501, a fan assembly 30, and a liquid storage tank 10. The top cover assembly 501 is provided with a liquid inlet 503 that also serves as an air outlet. The liquid inlet 503 serves both as an air outlet and for allowing the user to add liquid into the humidifier 1. The top cover assembly 501 is located on top of the humidifier 1 and covers the area above the fan assembly 30, thus isolating the internal components of the humidifier 1 from the external environment.

[0329] As shown in Figures 29 and 30, the fan assembly 30 includes an air guide bracket 303 and a motor 304 and a fan wheel 306 disposed within the air guide bracket 303. The air guide bracket 303 has a cavity 301 that communicates with the liquid injection port 503, so that liquid injected from the liquid injection port 503 can enter the interior of the air guide bracket 303 through the cavity 301.

[0330] Motor 304 can be a drive motor, whose output shaft is fixedly connected to the hub 3061 of the impeller 306, and is used to provide power for the rotation of the impeller 306. Motor 304 can be a DC brushless motor, whose speed is adjustable to adapt to different humidification air volume requirements.

[0331] The motor 304 has an output shaft, the direction of which is the axial direction of the fan assembly 30. The fan assembly 30 also has radial and circumferential directions relative to the central axis. The axial, radial, and circumferential directions of the fan assembly 30 can also be the axial, radial, and circumferential directions of the humidification device 1.

[0332] The impeller 306 can be a centrifugal impeller, including a hub 3061 located at the center and multiple fan blades 3062 distributed circumferentially along the hub 3061. The fan blades 3062 have a curved arc-shaped structure, which is beneficial to provide the wind pressure required to drive the airflow of the humidification device 1 with lower operating noise.

[0333] The top cover assembly 501 can be part of the body 50 of the humidifier 1 and is located on top of the body 50. As shown in Figures 5 to 7, the top cover assembly 501 includes a display panel 5012, an air intake portion 5016, and an air outlet grille portion 5011 arranged sequentially from its center to its outer periphery. The display panel 5012 is usually located in the central area of ​​the top of the humidifier 1.

[0334] The drainage section 5016 is connected to the outer periphery of the display panel 5012. The air outlet grille section 5011 is connected to the outer periphery of the drainage section 5016, and the air outlet grille section 5011 is provided with multiple liquid injection ports 503.

[0335] As shown in Figures 31 to 34, an annular drainage groove 5017 is formed at the connection between the drainage section 5016 and the air outlet grille section 5011, which is recessed into the fan assembly 30. This groove collects liquid falling onto the display panel 5012 and the drainage section 5016, and guides the liquid into the cavity 301 through the injection port 503. The drainage groove 5017 is located at the lowest point of the upper cover assembly 501 and has a continuous annular recessed structure.

[0336] In one embodiment, as shown in FIG12, the airflow guide 5016 extends obliquely from one end connected to the display panel 5012 toward the side closer to the fan assembly 30. Simultaneously, the air outlet grille 5011 extends obliquely from one end connected to the airflow guide 5016 in a direction away from the axis of the fan assembly 30. The oblique directions of both form a bent structure at the connection point, thereby constituting an airflow channel 5017.

[0337] In another embodiment, the airflow guide 5016 extends in a curved manner from one end connected to the display panel 5012 toward the end closer to the fan assembly 30. The air outlet grille 5011 extends in a curved manner from one end connected to the airflow guide 5016 toward a direction away from the axis of the fan assembly 30. The curved end of the airflow guide 5016 connects with the starting end of the air outlet grille 5011, forming an arc-shaped airflow groove 5017 that is recessed toward the fan assembly 30.

[0338] When liquid falls onto the display panel 5012 or the drainage section 5016, it will flow downwards along their surfaces under the influence of gravity. The slope or curved surface of the drainage section 5016 guides the liquid to its connection with the air outlet grille section 5011. Since the drainage groove 5017 formed at this connection is the lowest area of ​​the upper cover assembly 501 in the vertical direction, the liquid from the display panel 5012 and the drainage section 5016 collects here, thereby reducing the irregular diffusion and splashing of liquid on the top of the upper cover assembly 501.

[0339] Thus, the humidifier 1 provided in this application provides a flow guiding structure consisting of a display panel 5012, a flow guiding part 5016, and an air outlet grille part 5011 on the upper cover assembly 501. The annular flow guiding groove 5017 formed at the connection between the flow guiding part 5016 and the air outlet grille part 5011 provides a collection and flow guiding path for the liquid dripping when water is added from the top. This reduces the irregular diffusion and splashing of liquid on the upper cover assembly 501 during the water filling process of the humidifier 1, thereby improving the working reliability of the humidifier 1.

[0340] In some embodiments, the air intake portion 5016 extends from one end where it is connected to the display panel 5012 toward the side closer to the fan assembly 30. The air outlet grille portion 5011 extends from one end where it is connected to the air intake portion 5016 in a direction away from the axis of the fan assembly 30 (extending vertically).

[0341] The air intake section 5016 and the air outlet grille section 5011 are connected in different directions, so that the connection between the two forms a bent structure that is recessed towards the fan assembly 30, and the bent structure forms an annular air intake groove 5017.

[0342] Specifically, the air intake section 5016 and the air outlet grille section 5011 can extend along an inclined surface or along a curved surface. When both the air intake section 5016 and the air outlet grille section 5011 extend along an inclined line, the bending structure presents a V-shaped groove. When at least one of the air intake section 5016 and the air outlet grille section 5011 extends along a curve, the bending structure presents a U-shaped or arc-shaped groove.

[0343] As shown in Figure 11, the inner periphery 1021 of the air outlet grille 5011 is connected to the inner wall of the cavity 301 of the fan assembly 30. This connection structure makes the air outlet grille 5011, the flow channel 5017 and the inner wall of the cavity 301 form a continuous flow path (as indicated by the black indicator line in Figure 11).

[0344] Specifically, the drainage section 5016 receives liquid from the display panel 5012 and initially collects it into the annular drainage channel 5017. Since the air outlet grille section 5011 forms both the aforementioned drainage channel 5017 and is connected to the inner wall of the cavity 301, after the liquid is collected in the drainage channel 5017, it flows out along the liquid inlet 503 of the air outlet grille section 5011 and can then adhere to the inner wall surface of the cavity 301.

[0345] In this way, from the moment the liquid detaches from the display panel 5012, it flows out through the guide of the drainage section 5016, the collection of the drainage channel 5017, and the liquid inlet 503 of the air outlet grille section 5011, eventually adhering to the inner wall of the cavity 301 and flowing downwards until it collects at the bottom of the fan assembly 30 and flows out through the drain hole 30381 of the fan assembly 30. This guiding method reduces the possibility of the liquid scattering or atomizing under the action of airflow after entering the cavity 301.

[0346] It is understandable that if liquid enters the center of cavity 301, it is likely to collide with the high-speed rotating impeller 306. The collision between the droplet and the fan blades 3062 of the impeller 306 will not only generate aerodynamic noise and impact sound, but also disrupt the dynamic balance of the impeller 306, causing vibration and increasing additional operating noise.

[0347] Thus, the humidification device 1 provided in this application form a flow channel 5017 through the extension structure of the flow channel 5016 and the air outlet grille 5011 to initially collect liquid. Then, the connection between the air outlet grille 5011 and the inner wall of the cavity 301 makes the flow path transition silently, so that the liquid is moved away from the fan blades 3062 of the impeller 306 in a controlled manner as much as possible, thereby ensuring the stable and low-noise operation of the fan assembly 30.

[0348] In some embodiments, as shown in Figures 32 and 33, the display panel 5012 protrudes outward in a direction away from the fan assembly 30. This convex design causes the surface of the display panel 5012 to form a curved or inclined surface that gradually rises from the outer periphery to the center.

[0349] In this way, the liquid dripping onto the display panel 5012 will naturally flow from the higher center to the lower outer perimeter under its own gravity. This reduces the accumulation of liquid in the central area of ​​the display panel 5012 or the formation of irregular puddles. The liquid is guided to the outer perimeter of the display panel 5012, that is, to the drainage section 5016.

[0350] In this way, the protruding display panel 5012 serves as the initial guide surface, guiding the liquid falling on the display panel 5012 to the next-level drainage section 5016, thereby initially guiding the liquid at the beginning stage of the liquid flow and further reducing the risk of liquid stagnation on the upper cover assembly 501 of the humidification device 1.

[0351] In some embodiments, as shown in Figures 31 to 33, an injection port 503 is formed between the outer periphery 50112 and the inner periphery 50111 of the air outlet grille portion 5011. The inner periphery 50111 of the air outlet grille portion 5011 is connected to the drainage portion 5016, and the height of the outer periphery 50112 of the air outlet grille portion 5011 and the height of the vertex of the display panel 5012 are both higher than the height of the inner periphery 50111 of the air outlet grille portion 5011.

[0352] The liquid inlet 503 is formed between the outer periphery 50112 and the inner periphery 50111 of the air outlet grille portion 5011. That is, the liquid inlet 503 extends radially along the humidification device 1 to both radial ends of the air outlet grille portion 5011. The inner periphery 50111 of the air outlet grille portion 5011 is also the lowest point or bend of the drainage channel 5017. The apex of the display panel 5012 can be the highest point of the central area of ​​the upper cover assembly 501, and a downward slope is formed between it and the inner periphery 50111 of the air outlet grille portion 5011, which is the lowest point of the upper cover assembly 501. This slope causes the liquid to tend to flow from the display panel 5012 to the drainage channel 5017 under the drive of gravity.

[0353] Furthermore, the outer periphery 50112 of the air outlet grille 5011 is higher than its inner periphery 50111, meaning that the air outlet grille 5011 itself also presents a slope or curved surface that slopes downwards from the outside to the inside towards the bottom of the drainage channel 5017. In this way, even if a small amount of liquid drips onto the outer periphery of the air outlet grille 5011, it will flow towards the inner periphery 50111 under the action of gravity, rather than splashing outwards, and then flow into the fan assembly 30 through the liquid injection port 503 located at the lowest point.

[0354] In this way, by controlling the relative height difference between the top of the display panel 5012, the outer periphery 50112 and the inner periphery 50111 of the air outlet grille 5011, a flow gradient is created from the top of the cover assembly 501 toward the inner periphery 50111 of the air outlet grille 5011. This allows the liquid on the cover assembly to be collected as much as possible and guided into the drainage channel 5017, reducing and suppressing the splashing and disorderly diffusion of the liquid.

[0355] In some embodiments, the drainage portion 5016 is sealed to the display panel 5012. This sealing connection method includes, but is not limited to, bonding with sealant, ultrasonic welding, or pressing with a sealing ring. This sealed connection prevents liquid from seeping into the humidifier 1 from the gap between the drainage portion 5016 and the display panel 5012, thus preventing liquid from contacting the electrical components inside the display panel 5012.

[0356] In other embodiments, the drainage portion 5016 and the display panel 5012 are integrally molded. Integral molding means that the drainage portion 5016 and the display panel 5012 are manufactured as a continuous, seamless, single component, for example, through injection molding. The integral molding structure eliminates the assembly gap between the drainage portion 5016 and the display panel 5012, fundamentally reducing the possibility of liquid leakage from the joint, while also enhancing the overall structural strength and reliability of the cover assembly 501.

[0357] In some embodiments, the air intake portion 5016 is connected to the inner periphery 50111 of the air outlet grille portion 5011. This connection can be a fixed connection, and this split connection provides flexibility for using different materials or manufacturing processes for different parts (such as the slope of the air intake portion 5016 and the grille of the air outlet grille portion 5011).

[0358] In other embodiments, the flow guide 5016 and the air outlet grille 5011 are integrally formed. This integral forming creates a smooth, continuous surface in the transition area from the flow guide 5016 to the air outlet grille 5011, facilitating a smooth transition of liquid from the flow guide 5016 to the flow channel 5017 of the air outlet grille 5011, reducing liquid stagnation or flow resistance at the connection gaps, and improving the smoothness of the flow path.

[0359] In some embodiments, as shown in FIG31, the height difference between the inner periphery 50111 of the air outlet grille portion 5011 and the apex of the upper cover assembly 501 is H1, where H1 > 25 mm.

[0360] The apex of the top cover assembly 501 can be the highest point of the display panel 5012, the highest point of the outer periphery 50112 of the air vent grille 5011, or any highest point on the surface of the top cover assembly 501 in the vertical direction.

[0361] There is a height difference H1 between the apex of the upper cover assembly 501 and the inner periphery 50111 of the air outlet grille 5011, forming a liquid flow path with a predetermined slope from the apex of the upper cover assembly 501 to the inner periphery 50111 of the air outlet grille 5011. When liquid falls into the area near the apex of the upper cover assembly 501, it will flow along this path to the lower inner periphery 50111 of the air outlet grille 5011 under the action of gravity.

[0362] H1 > 25mm provides sufficient gravitational potential energy for the liquid, enabling the liquid dripping onto the display panel 5012 to overcome surface tension and flow resistance, be guided to the inner periphery 50111 of the air outlet grille 5011, and then discharged from the top cover assembly 501 through the liquid injection port 503 located at the inner periphery 50111.

[0363] If H1 ≤ 25 mm, the slope of the flow path formed from the apex of the upper cover assembly 501 to the inner periphery 50111 of the air outlet grille 5011 is relatively small. A small slope may result in insufficient driving force for liquid flow, increasing the risk that liquid will easily form a liquid film on the surface of the upper cover assembly 501 due to surface tension and become stagnant.

[0364] In some embodiments, the outer surface of the drainage portion 5016 is provided with a guide rib 50161. The guide rib 50161 extends radially along the upper cover assembly 501.

[0365] The guide rib 50161 protrudes from the surface of the drainage portion 5016. When liquid drips onto the display panel 5012 and flows towards the drainage portion 5016, the guide rib 50161 constrains the flow path of the liquid. The liquid will flow radially under the guidance of the guide rib 50161, and its flow path can be restricted between adjacent guide ribs 50161.

[0366] By providing radially extending guide ribs 50161, the liquid is directed to the injection port 503 of the air outlet grille 5011. This reduces the probability of lateral flow of liquid on the surface of the guide section 5016, allowing the liquid to enter the cavity 301 more concentratedly through the injection port 503.

[0367] In some embodiments, as shown in Figures 29 and 30, the fan assembly 30 includes a motor 304 and a motor bracket 3037 for mounting the motor 304. The fan assembly 30 also includes an air guide ring 3036 that serves as a sidewall of a cavity 301, with the motor bracket 3037 and the air guide ring 3036 defining a portion of the cavity 301.

[0368] The motor bracket 3037 includes a motor cavity 3031 recessed along the axial direction of the fan assembly 30 to accommodate the motor 304. The motor bracket 3037 is connected to the inner periphery 50111 of the air outlet grille portion 5011. On one hand, the motor cavity 3031 of the motor bracket 3037 provides support and positioning for the motor 304. On the other hand, the motor bracket 3037 defines a portion of the cavity 301. Since the upper edge of the motor bracket 3037 is connected to the inner periphery 50111 of the air outlet grille portion 5011, liquid flowing down from the inner periphery 50111 of the air outlet grille portion 5011 can smoothly transition to the inner wall surface of the cavity 301 defined by the motor bracket 3037.

[0369] Thus, the inner periphery 50111 of the air outlet grille 5011 is connected to the motor bracket 3037, which reduces the dripping or path interruption of liquid when it transitions from the air outlet grille 5011 to the inner wall of the cavity 301, and ensures the continuity of the flow path.

[0370] In some embodiments, the impeller 306 includes a hub 3061 and a plurality of fan blades 3062 connected to the hub 3061. An annular flow channel 308 is formed between the motor bracket 3037 and the leeward side of the hub 3061, and the hub 3061 is provided with a drain hole 30611 communicating with the flow channel 308.

[0371] The motor bracket 3037 has a motor cavity 3031 recessed along the axial direction of the fan assembly 30, and the motor 304 is housed within the motor cavity 3031. A hub 3061 of the impeller 306 is arranged around the lower part of the motor bracket 3037. Correspondingly, the hub 3061 is also constructed with an axially recessed structure, and an annular gap is maintained between the inner peripheral wall of the motor bracket 3037 and the leeward side of the hub 3061 (i.e., the side facing away from the air intake direction of the fan blades 3062), thereby forming a guide channel 308.

[0372] At least one vent hole 30611 is provided on the top or side wall of the hub 3061. This vent hole 30611 is connected to the guide channel 308 formed between the motor bracket 3037 and the leeward side of the hub 3061.

[0373] As liquid flows down the outer wall of the motor bracket 3037, it can enter the guide channel 308 and accumulate in the central depression area above the hub 3061. Under the action of gravity, the liquid will flow out through the drain hole 30611 opened on the hub 3061, and finally be discharged to the air inlet grille 30383 at the bottom of the air guide bracket 303 under the action of gravity, thereby being discharged from the fan assembly 30.

[0374] It is understandable that if the hub 3061 is a closed, recessed structure, liquid flowing in from the air outlet grille 5011 will accumulate in the recessed structure. When the fan assembly 30 is stationary, the accumulated liquid will be in contact with the hub 3061 and the output shaft area of ​​the motor 304 for a long time, causing oxidation of the metal parts and affecting the service life of the fan assembly 30. When the fan assembly 30 is running, the centrifugal force generated by the high-speed rotating impeller 306 will throw the liquid accumulated in the recess outward. The thrown liquid will hit the air guide ring 3036 (inner wall of cavity 301) and produce impact noise.

[0375] Thus, by setting up a flow channel 308 formed by the motor bracket 3037 and the leeward side of the hub 3061, and opening a drain hole 30611 communicating with it on the hub 3061, a discharge path is provided for the liquid flowing into the top of the hub 3061, allowing the liquid to be discharged from the impeller 306 in a timely manner, reducing the accumulation of liquid on the hub 3061. This eliminates the noise and liquid splashing problems caused by the centrifugal ejection of stored water, thereby improving the operational reliability and durability of the humidification device 1.

[0376] In some embodiments, as shown in FIG29, the housing of the fan assembly 30 includes an air guide ring 3036 and a bottom shell 3038. The bottom shell 3038 includes an air inlet grille 30383, which is located on the side of the impeller 306 opposite to the motor 304.

[0377] The vertical projection of the drain hole 30611 is located within the air inlet grille 30383. This arrangement allows the liquid flowing out of the drain hole 30611 to fall into the area corresponding to the air inlet grille 30383 and flow out of the fan assembly 30 through the air inlet grille 30383.

[0378] In some embodiments, the air inlet grille 30383 corresponds vertically to the water receiving tray 101, so that liquid falling from the area of ​​the air inlet grille 30383 can be received by the water receiving tray 101 and then collected into the interior of the tank 102 of the liquid storage tank 10 through the guide structure of the water receiving tray 101.

[0379] In some embodiments, the projection of the drain hole 30611 in the vertical direction avoids the fan blade 3062.

[0380] It is understandable that if the projection of the drain hole 30611 overlaps with the fan blade 3062 in some areas, the liquid flowing out of the drain hole 30611 may collide with the high-speed rotating fan blade 3062. The liquid is broken up and splashed by the high-speed rotating fan blade 3062, and some droplets will be thrown onto the inner wall of the cavity 301, producing an impact noise. The other part is brought back to the surface of the hub 3061, forming a secondary convergence of liquid in the hub 3061.

[0381] Thus, by setting the projection position of the drain hole 30611 outside the area where the fan blade 3062 is located, that is, the vertical projection of the drain hole 30611 is located in the hollow area of ​​multiple fan blades 3062, the liquid discharged from the drain hole 30611 can form a continuous liquid column under the action of gravity and be discharged from the air inlet grille 30383 of the fan assembly 30.

[0382] In some embodiments, the housing of the fan assembly 30 includes an air inlet grille 30383 and a drain section 30384. The air inlet grille 30383 is used for ventilation, and the drain section 30384 is disposed around the outer periphery of the air inlet grille 30383. The drain section 30384 has a plurality of drain holes 30381, which are in communication with the drain channel 307.

[0383] As shown in Figure 29, the bottom shell 3038 includes an air inlet grille 30383 located in its central region and a drain section 30384 surrounding the air inlet grille 30383. The drain section 30384 is connected to one end of the guide section 30382 that is away from the air guide ring 3036.

[0384] The air inlet grille 30383 is composed of a mesh structure formed by multiple intersecting ribs. The air inlet grille 30383 is internally connected to the air guide bracket 303 to allow airflow, enabling the fan assembly 30 to draw air from inside the humidifier 1 while preventing larger foreign objects from entering.

[0385] The drain section 30384 is an annular structure surrounding the air inlet grille section 30383. The vertical projection of the drain section 30384 is located in the inner cavity of the humidification assembly 40 and corresponds to the area of ​​the water receiving tray 101 below.

[0386] The drainage section 30384 is provided with a plurality of drainage holes 30381, which are arranged at intervals along the circumference of the blower assembly 30, thereby enabling rapid drainage. The number of drainage holes 30381 can be 6 to 12, evenly distributed along the circumference of the drainage section 30384, and the shape of each drainage hole 30381 can be circular or elliptical.

[0387] Liquid flowing in from the air duct flows into the drain channel 307 through the guide section 30382 and then into the drain section 30384. It flows out of the fan assembly 30 through the drain hole 30381. Multiple drain holes 30381 arranged circumferentially can collect liquid from all directions. The liquid then flows out through the multiple drain holes 30381 distributed circumferentially and drips into the water receiving tray 101 of the liquid storage tank 10 located directly below it, thereby improving the storage of liquid.

[0388] During the injection process, the liquid injected from the injection port 503 mainly falls onto the guide section 30382, collects along the slope, and is discharged to the drainage section 30384 through the drainage channel 307. The liquid finally flows out of the blower assembly 30 from the multiple drainage holes 30381 of the drainage section 30384 and enters the water receiving tray 101 below for liquid collection and storage.

[0389] In this way, the air inlet grille 30383 ensures unobstructed airflow, while the drain section 30384, located on the outer periphery of the air inlet grille 30383, significantly reduces interference between gas and liquid. This ensures both the aerodynamic performance of the fan assembly 30 and improves drain efficiency, reducing liquid accumulation inside the fan assembly 30.

[0390] In some embodiments, the humidification assembly 40 is located between the fan assembly 30 and the liquid storage tank 10, and the vertical projections of the drain hole 30611 and the drain hole 30381 are located within the cavity of the humidification assembly 40. In this way, the liquid discharged from the guide channel 308 and the drain channel 307 can fall through this cavity and be finally collected by the water receiving tray 101.

[0391] In this way, by converging the outlets of the guide channel 308 and the drain channel 307 into the cavity of the humidification component 40, it is convenient to collect the liquid discharged from inside the fan component 30.

[0392] In some embodiments, as shown in Figures 35 and 28, the impeller 306 includes a central hub 3061 and a plurality of fan blades 3062 distributed circumferentially along the hub 3061. The fan blades 3062 have a curved arc shape, which is beneficial for providing the wind pressure required to drive the airflow of the humidification device 1 with lower operating noise. The hub 3061 is connected to the output shaft of the motor 304. The plurality of fan blades 3062 are evenly distributed circumferentially along the hub 3061 and connected to the hub 3061.

[0393] The hub 3061 is connected to the output shaft of the motor 304. Multiple fan blades 3062 are distributed circumferentially along the hub 3061 and connected to the hub 3061. The central region of the hub 3061 protrudes away from its edge relative to the upper cover assembly 501, forming a recessed region in the hub 3061.

[0394] The hub 3061 is provided with multiple drain holes 30611. Because the hub 3061 has a recessed structure, during the process of injecting liquid through the injection port 503 of the upper cover assembly 501, some liquid adhering to the wall of the cavity 301 of the fan assembly 30 easily accumulates within the recessed structure of the hub 3061 under the influence of gravity. The drain holes 30611 on the hub 3061 provide a discharge channel for the accumulated liquid. The liquid accumulated in the hub 3061 falls through the drain holes 30611 into the lower liquid storage tank 10 under the influence of gravity, reducing the long-term accumulation of liquid in the hub 3061 and also reducing the probability of liquid impacting the wall of the cavity 301 under the influence of airflow.

[0395] Thus, the humidifier 1 provided in this embodiment provides a discharge channel for liquid collected in the recessed structure of the hub 3061 by providing a drain hole 30611 in the hub 3061. Whether the impeller 306 is stationary or running, the liquid can be quickly discharged through the drain hole 30611, reducing the risk of liquid stagnation in the hub 3061. Furthermore, the downward discharge of liquid through the drain hole 30611 shortens its disordered movement within the cavity 301, reduces abnormal noise caused by the liquid impacting the inner wall of the cavity 301 due to centrifugal force, and also reduces the possibility of liquid splashing upwards due to the negative pressure in the cavity 301, thereby improving the operational reliability and user experience of the humidifier 1.

[0396] In some embodiments, as shown in FIG35, there are multiple bleed holes 30611, which are spaced apart circumferentially along the fan assembly 30.

[0397] Specifically, the drain holes 30611 are arranged in a ring array around the rotation center axis of the motor 304. The circumferentially spaced arrangement of multiple drain holes 30611 ensures that liquid can be discharged from the hub 3061 regardless of where it falls into the hub 3061.

[0398] In particular, when the user adds water to the humidifier 1 while it is running, the dripping liquid will fall into various circumferential directions of the hub 3061 under the action of centrifugal force. The circumferentially spaced drain holes 30611 can drain the liquid from the hub 3061 in various directions, reducing the accumulation of liquid in the hub 3061.

[0399] In some embodiments, the center point of the plurality of vent holes 30611 is located on the same circumference on the hub 3061.

[0400] The center point of the multiple bleed holes 30611 is located on the same circumference on the hub 3061, that is, all the bleed holes 30611 are in the same radial position.

[0401] In this way, the liquid level at each drain hole 30611 is basically the same, thereby ensuring that the drainage rate of each drain hole 30611 is relatively balanced, which is conducive to maintaining the dynamic balance of the impeller 306 during rotation and reducing the uneven drainage volume caused by the asymmetrical position of the drain holes 30611.

[0402] In some embodiments, a plurality of drain holes 30611 are evenly distributed circumferentially, and the number M of the plurality of drain holes 30611 satisfies: 6≤M≤12.

[0403] When M < 6, the spacing between adjacent drain holes 30611 is relatively large, which may prevent liquid in some areas of the hub 3061 from being discharged in time. When M > 12, although the drainage paths increase, it weakens the structural rigidity of the hub 3061 and also increases the complexity in processing and manufacturing. When M satisfies 6 ≤ M ≤ 12, the liquid inside the hub 3061 can be quickly thrown into the nearest drain hole 30611 for discharge when the hub 3061 rotates.

[0404] In some embodiments, the included angle between adjacent drain holes 30611 can also be kept consistent, and the included angle θ3 between adjacent drain holes 30611 satisfies: 30°≤θ3≤60°. This allows liquid to be discharged through the adjacent drain hole 30611 in a short time, regardless of where the liquid accumulates in the hub 3061, reducing the risk of liquid forming local eddies or stagnation in the groove.

[0405] In this way, the circumferentially uniform arrangement of the vent holes 30611 by the above method helps to maintain the dynamic balance performance of the hub 3061 during rotation, thereby ensuring the stable operation of the fan assembly 30.

[0406] As shown in Figure 36, in some embodiments, the radius of the edge portion of the hub 3061 is R1, and the distance from the center point of the vent hole 30611 to the axis of the fan assembly 30 is R2, where R2 / R1 satisfies: 0.3≤R2 / R1≤0.6. The edge portion of the hub 3061 refers to the outer edge of the main structure of the hub 3061.

[0407] When R2 / R1 < 0.3, the position of the drain hole 30611 is too close to the recessed area at the center of the hub 3061, meaning the position of the drain hole 30611 is too low. Especially when the impeller 306 is rotating, the linear velocity of the central area of ​​the hub 3061 during rotation is relatively low, resulting in insufficient centrifugal force, making it difficult for liquid to be thrown towards the drain hole 30611, thus reducing drainage efficiency.

[0408] When R2 / R1 > 0.6, the drain hole 30611 is too close to the edge of the hub 3061. At this location, the centrifugal force on the liquid is relatively large, causing the liquid to be thrown out of the top edge of the hub 3061 before reaching the drain hole 30611, splashing onto the inner wall of the cavity 301. This not only renders the drain hole 30611 ineffective in its intended drainage function, but also exacerbates the disorderly impact and splashing of the liquid within the cavity 301, failing to meet the original purpose of setting up the drain hole 30611.

[0409] Therefore, 0.3≤R2 / R1≤0.6 ensures that while the liquid obtains sufficient centrifugal force to guide the drain hole 30611, the liquid's movement path is also constrained within a reasonable range. Before being thrown out of the edge of the hub 3061, the liquid can be discharged from the hub 3061 through the drain hole 30611, reducing the possibility of splashing and abnormal noise in the cavity 301.

[0410] In some embodiments, the hub 3061 also includes a plurality of flow-blocking portions 30612 protruding from its water-contacting surface, the flow-blocking portions 30612 extending radially from the central region of the hub 3061 to the outer edge of the hub 3061.

[0411] An independent confluence zone 30613 is formed between adjacent flow-blocking parts 30612, and each flow-draining hole 30611 is located in a corresponding confluence zone 30613.

[0412] When the impeller 306 rotates, when liquid drips onto the surface of the rotating hub 3061, the radially arranged baffles 30612 can intercept and disperse the liquid flow that tends to be thrown out of the hub 3061 circumferentially under the action of centrifugal force. When the liquid moves outward under the action of centrifugal force, it is confined within the confluence area 30613 formed by adjacent baffles 30612. The flow path of the liquid with the tendency to be thrown out of the hub 3061 is changed to flow along the baffles 30612, and thus it is concentrated and guided to the drain hole 30611 located in the confluence area 30613.

[0413] In addition, the baffle 30612 also acts as a reinforcing rib, enhancing the radial structural rigidity of the hub 3061. Especially when multiple vent holes 30611 are opened, it can compensate for the strength loss caused by the opening.

[0414] The geometry of each confluence zone 30613 can be set according to actual drainage requirements. For example, it can be designed as a wedge shape that gradually narrows radially to accelerate the convergence of liquid as it flows toward the drain hole 30611.

[0415] This application also provides a humidification device 1, which includes a humidification component 40 and a wettable substrate 402. As shown in Figures 37 to 41, the wettable substrate 402 includes a three-dimensional fabric 100 and a sealing fabric 200. The three-dimensional fabric 100 is used to absorb liquid, and the sealing fabric 200 is connected to the end of the three-dimensional fabric 100 and covers at least a portion of the three-dimensional fabric 100 along a first direction, which is the thickness direction of the three-dimensional fabric 100.

[0416] In this embodiment, the three-dimensional fabric 100 has good water absorption properties, and moisture can be adsorbed on the surface or inside of the three-dimensional fabric 100. Airflow passes through the three-dimensional fabric 100 and carries away the moisture in the three-dimensional fabric 100 to increase the humidity in the air.

[0417] The edge-sealing fabric 200 is located outside the three-dimensional fabric 100 and connected to its ends. The three-dimensional fabric 100 has a windward side 112, a leeward side 122, and end faces. The windward side 112 is located on the side of the three-dimensional fabric 100 facing the airflow, and the windward side 112 is opposite to the leeward side 122. The two ends of the end faces are respectively connected to the windward side 112 and the leeward side 122. The distance between the windward side 112 and the leeward side 122 is the thickness of the three-dimensional fabric 100, and the first direction is the thickness direction of the three-dimensional fabric 100, as shown in Figure 41, where the arrow at X points to the first direction. The edge-sealing fabric 200 covers at least a portion of the outer end of the three-dimensional fabric 100 along the first direction, so that the edge-sealing fabric 200 covers at least a portion of the end faces of the three-dimensional fabric 100.

[0418] The edge-sealing fabric 200 covers the end face of the three-dimensional fabric 100, thereby fixing at least a portion of the edge of the three-dimensional fabric 100 to complete the edge sealing. The edge-sealing fabric 200 provides structural support to the end of the three-dimensional fabric 100, improving the stability of its shape, reducing deformation or collapse, and ensuring sufficient contact area between the three-dimensional fabric 100 and airflow / water flow. This results in uniform localized water absorption and ventilation, thus improving the moisture retention and evaporation effects of the three-dimensional fabric 100. Furthermore, the structural shape of the three-dimensional fabric 100 easily creates gaps at the edges; the edge-sealing fabric 200 can wrap around these edges, making the edges of the wettable substrate 402 smoother, increasing the contact area between the wettable substrate 402 and the drain outlet cross-section, and improving the water-guiding effect of the wettable substrate 402. In addition, the edge sealing fabric 200 has good air permeability and permeability. The liquid first contacts the edge sealing fabric 200 and then enters the three-dimensional fabric 100. When the liquid flows through the edge sealing fabric 200, it undergoes permeation and diffusion, which improves the uniformity of liquid distribution. This allows the edge sealing fabric 200 to play a role in evenly distributing water to the three-dimensional fabric 100 below, thus optimizing the water absorption effect of the three-dimensional fabric 100.

[0419] Both the three-dimensional fabric 100 and the edge-sealing fabric 200 are fabrics, also known as textiles or textiles. For example, the fabric can be a single-layer porous substrate formed from synthetic fibers (such as polyester or nylon) or natural fibers (cotton yarn) through a weaving process, with regularly distributed geometric openings (such as regular hexagons or squares, with a diagonal of 2-12 mm) on its surface and a mesh density of 5-30 meshes / cm². 2 This fabric, serving as the core layer of the wettable substrate 402, is connected to another fabric layer intermittently via vertically or curved connecting fibers (4-50 fibers per bundle), forming a continuous three-dimensional air channel. The fiber surface can be treated with hydrophilic or hydrophobic agents to regulate moisture retention (1.2-2.8 g / g), and the adhesion of the water film is enhanced through micron-level roughness (Ra≤50μm). Its low-resistance design (pressure loss ≤20Pa at a face velocity of 1 m / s) and anti-scaling properties make it compatible with rotary, immersion, and drip humidifiers, improving efficient and stable humidification and achieving a humidity increase rate >0.8 g / (m²). 3 ·min).

[0420] For example, the fabric can be a three-dimensional filter substrate, consisting of two layers of woven substrate with regular openings (e.g., regular hexagons, diagonal > 3 mm) connected vertically or curvedly by multiple connecting fiber bundles (4-50 fibers / bundle, single fiber outer perimeter 45-450 μm). This fabric utilizes inter-fiber capillary action and a micron-level surface texture to retain water (1.45-2.55 g / g), while simultaneously reducing air resistance as it passes through the openings. The fiber material can be polyester, nylon, or cotton yarn, and can be treated with hydrophilic / hydrophobic agents or have antibacterial agents added. Adaptation to rotating cylinders or ribbon structures improves uniform wetting. Compared to traditional honeycomb structures, its three-dimensional fiber network increases the gas-liquid contact area by three times, effectively inhibiting scale buildup and clogging. It combines high humidification efficiency (humidity > 60% RH at a face velocity of 1 m / s) with low energy consumption, making it suitable for long-term, stable humidification applications such as air purifiers.

[0421] For example, the material hardness of the edge-sealing fabric 200 is greater than or equal to the material hardness of the three-dimensional fabric 100. The material of the edge-sealing fabric 200 can be thermoplastic polyester or saturated polyester, such as polyester resin.

[0422] In some embodiments, as shown in Figures 39 and 41, the edge-sealing fabric 200 covers at least a portion of the three-dimensional fabric 100 along a second direction, which is the direction from the outer end of the three-dimensional fabric 100 toward the center.

[0423] In this embodiment, the second direction is the direction from the outer end of the three-dimensional fabric 100 to the center of the three-dimensional fabric 100, as shown in FIG41. The arrow at point Y points to the second direction, and the first direction intersects with the second direction. Exemplarily, the first direction and the second direction can be perpendicular to each other.

[0424] In another embodiment, the edge sealing fabric 200 can be a right-angled structure, with the two right-angled sides of the right-angled structure extending along a first direction and a second direction respectively, so that the edge sealing fabric 200 covers at least a portion of the end face of the three-dimensional fabric 100 along the first direction.

[0425] The edge-sealing fabric 200 covers the three-dimensional fabric 100 in two directions, increasing the support strength of the edge-sealing fabric 200 for the three-dimensional fabric 100 and further improving the stability of the three-dimensional fabric 100's shape, thereby enhancing the moisture retention and evaporation effects of the three-dimensional fabric 100. Furthermore, the edge-sealing fabric 200 is bent and covers the ends of the three-dimensional fabric 100, facilitating the fixing of the edge-sealing fabric 200 to the three-dimensional fabric 100 and making it easier for workers to perform edge-sewing operations on the three-dimensional fabric 100.

[0426] In some embodiments, as shown in FIG37, the three-dimensional fabric 100 has a tubular structure, and the edge-sealing fabric 200 wraps the top and / or bottom of the three-dimensional fabric 100.

[0427] In some other embodiments, as shown in FIG38, the three-dimensional fabric 100 is a plate-shaped structure, the outline of which can be polygonal or circular, and the edge sealing fabric 200 wraps around the edge of the three-dimensional fabric 100.

[0428] In some embodiments provided in this application, as shown in FIG39, the edge sealing fabric 200 is provided with a liquid guiding hole 210, which is through in a first direction or a second direction. The liquid guiding hole 210 is used to guide liquid outside the edge sealing fabric 200 to the three-dimensional fabric 100.

[0429] In this embodiment, the liquid guiding hole 210 penetrates both the inner and outer sides of the sealing fabric 200. When the liquid guiding hole 210 is connected along the first direction, it faces the windward side 112 or the leeward side 122 of the three-dimensional fabric 100. When the liquid guiding hole 210 is connected along the second direction, it faces the end face of the three-dimensional fabric 100. After contacting the sealing fabric 200, the liquid can flow through the liquid guiding hole 210 to the end of the three-dimensional fabric 100. The liquid guiding hole 210 improves the guiding function of the liquid, increases the liquid conduction efficiency of the sealing fabric 200, and thus improves the water absorption effect of the three-dimensional fabric 100.

[0430] In some embodiments provided in this application, as shown in Figures 39, 41, and 45, the edge-sealing fabric 200 includes a first edge-sealing portion 220 and a second edge-sealing portion 230, wherein the first edge-sealing portion 220 extends along a first direction and the second edge-sealing portion 230 extends along a second direction. The number of liquid-guiding holes 210 is plurality of, and the plurality of liquid-guiding holes 210 are respectively located in the first edge-sealing portion 220 and the second edge-sealing portion 230.

[0431] In this embodiment, the positions of the liquid guiding holes 210 are defined. A first sealing portion 220 extending along a first direction covers at least a portion of the end face of the three-dimensional fabric 100, and a second sealing portion 230 extending along a second direction covers at least a portion of the windward side 112 or leeward side 122 of the three-dimensional fabric 100. Both the first sealing portion 220 and the second sealing portion 230 are provided with multiple liquid guiding holes 210, located on different end faces of the sealing fabric 200. Liquid can enter the three-dimensional fabric 100 through multiple end faces, improving the uniformity and efficiency of liquid conduction in the sealing fabric 200. Furthermore, airflow can flow to the three-dimensional fabric 100 through the liquid guiding holes 210 on the second sealing portion 230, preventing the sealing portion from affecting the contact between the three-dimensional fabric 100 and the airflow, thus improving the ventilation effect of the wettable substrate 402.

[0432] In some embodiments provided in this application, as shown in Figures 39, 41 and 45, the number of second edge sealing portions 230 is at least two, and the two second edge sealing portions 230 are respectively disposed on both sides of the three-dimensional fabric 100.

[0433] In this embodiment, two second edge-sealing portions 230 are respectively disposed on both sides of the three-dimensional fabric 100, so that the edge-sealing fabric 200 can simultaneously cover the windward side 112 and the leeward side 122 of the three-dimensional fabric 100, thereby expanding the wrapping range of the edge-sealing fabric 200 on the outer end of the three-dimensional fabric 100 and enabling the edge-sealing fabric 200 to simultaneously support both sides of the three-dimensional fabric 100, thus improving the support strength and support effect of the edge-sealing fabric 200 on the three-dimensional fabric 100.

[0434] In some embodiments provided in this application, as shown in FIG45, the shape of the liquid guide hole 210 includes a circle or a polygon, wherein the diameter of the circle or the longest diagonal of the polygon is less than or equal to 5 mm.

[0435] In this embodiment, the liquid guiding hole 210 can be a circular through hole or a polygonal through hole. When the liquid guiding hole 210 is a circular through hole, the diameter of the circle is less than or equal to 5 mm. When the liquid guiding hole 210 is a polygonal through hole, the longest diagonal of the polygon is less than or equal to 5 mm, and the diagonal of the polygon is the distance between the two endpoints. When the polygon is a triangle, the longest diagonal of the polygon is the maximum side length of the triangle.

[0436] By limiting the size of the liquid guiding hole 210, the opening of the liquid guiding hole 210 is made smaller. It can be understood that the smaller the opening, the more pronounced the surface tension of the liquid within the liquid guiding hole 210, making it easier for the liquid to form a convex liquid surface within the liquid guiding hole 210. This increases the surface energy of the liquid, making it easier for the liquid to penetrate the edge-sealing fabric 200. This improves the efficiency of liquid penetration into the edge-sealing fabric 200, thereby improving the efficiency of the edge-sealing fabric 200 in guiding liquid flow to the three-dimensional fabric 100, and further improving the humidification performance of the wettable substrate 402.

[0437] In some embodiments provided in this application, as shown in FIG41, the edge-sealing fabric 200 covers the three-dimensional fabric 100 in the second direction for a length of 1 cm to 3 cm.

[0438] In this embodiment, F in Figure 41 represents the coverage length of the edge-sealing fabric 200 in the second direction. By limiting the length of the edge-sealing fabric 200 in the second direction, the coverage range of the edge-sealing fabric 200 on the outer edge of the three-dimensional fabric 100 is limited. This allows the edge-sealing fabric 200 to extend to a position 1cm to 3cm away from the end face on the windward side 112 or leeward side 122 of the three-dimensional fabric 100. This ensures that the wrapping range of the edge-sealing fabric 200 is within a reasonable range, preventing the coverage range of the edge-sealing fabric 200 from being too small, resulting in weak support strength, and also preventing the coverage range of the edge-sealing fabric 200 from being too large, resulting in the edge-sealing fabric 200 affecting the contact between the three-dimensional fabric 100 and the airflow and water flow.

[0439] In some embodiments provided in this application, as shown in FIG41, the distance between the two end faces of the three-dimensional fabric 100 along the first direction is H2, and the thickness of the first edge sealing portion 220 and the second edge sealing portion 230 is H3, where H3≤0.2H2 and / or H3≤2mm.

[0440] In this embodiment, the distance between the windward side 112 and the leeward side 122 of the three-dimensional fabric 100 is H2, and the thickness of the first edge sealing portion 220 and the second edge sealing portion 230 is the same, both being H3. By limiting the thickness of the edge sealing fabric 200, the edge sealing fabric 200 is made relatively thin, which improves the breathability and permeability of the edge sealing fabric 200, thereby improving the humidification effect of the wettable substrate 402.

[0441] In some embodiments provided in this application, as shown in 46, the edge sealing fabric 200 has a multi-layer structure, including a first fabric 240 and a second fabric 250 stacked together, with the first fabric 240 covering the outside of the second fabric 250.

[0442] In this embodiment, the first fabric 240 and the second fabric 250 are stacked, with the first fabric 240 covering the outside of the second fabric 250, so that the edge sealing fabric 200 forms a multi-layer structure. The first fabric 240 and the second fabric 250 together wrap the outer end of the three-dimensional fabric 100, which improves the overall structural strength of the edge sealing fabric 200, thereby improving the support effect of the edge sealing fabric 200 on the three-dimensional fabric 100 and improving the stability of the wettable substrate 402.

[0443] In some embodiments provided in this application, as shown in FIG46, the edge-sealing fabric 200 further includes: a first connecting fiber 260, the two ends of which are respectively connected to the first fabric 240 and the second fabric 250.

[0444] In this embodiment, the multi-layered feature of the edge-sealing fabric 200 is further defined, and the number of first connecting fibers 260 can be multiple. The first connecting fibers 260 are located between the first fabric 240 and the second fabric 250, and the first fabric 240 and the second fabric 250 are connected by the first connecting fibers 260, further improving the structural strength of the edge-sealing fabric 200, thereby improving the supporting effect of the edge-sealing fabric 200 on the three-dimensional fabric 100 and improving the stability of the wettable substrate 402. Furthermore, the first connecting fibers 260 can store and guide liquid flowing through the first fabric 240, improving the liquid guiding efficiency and permeation uniformity of the edge-sealing fabric 200.

[0445] In some embodiments provided in this application, as shown in FIG46, the first fabric 240 is provided with a first through hole 241, and the second fabric 250 is provided with a second through hole 251. The shapes of the first through hole 241 and the second through hole 251 include circles or polygons. The diameter or the longest diagonal length of the first through hole 241 is D3, and the diameter or the longest diagonal length of the second through hole 251 is D4, where D3 ≥ D4.

[0446] In this embodiment, the multi-layered features of the edge-sealing fabric 200 are further defined. The liquid guiding hole 210 of the first fabric 240 is a first through hole 241, and the liquid guiding hole 210 of the second fabric 250 is a second through hole 251. The first through hole 241 and the second through hole 251 can be circular or polygonal through holes. The diameter or longest diagonal length of the first through hole 241 is D3, and the diameter or longest diagonal length of the second through hole 251 is D4, where D3 ≥ D4. This makes the opening size of the first through hole 241 greater than or equal to the opening size of the second through hole 251, so that the liquid permeation effect of the inner fabric is greater than that of the outer fabric. This allows the fluid to quickly penetrate into the inner fabric after flowing through the outer fabric, further improving the liquid permeation efficiency of the edge-sealing fabric 200 and preventing liquid from accumulating inside the edge-sealing fabric 200.

[0447] In some embodiments provided in this application, D3 is 8 to 12 times that of D4.

[0448] In this embodiment, the opening size of the sealing fabric 200 is further defined. For example, D3 can be 8, 10, or 12 times that of D4. By limiting the size of the liquid guiding holes 210 of each layer of the multilayer sealing fabric 200 within a reasonable range, the opening size of the first through hole 241 is much larger than the opening size of the second through hole 251, making the liquid permeation effect of the inner layer fabric much greater than that of the outer layer fabric, thereby improving the liquid permeation efficiency of the multilayer sealing fabric 200.

[0449] In some embodiments provided in this application, there are multiple three-dimensional fabrics 100, which are stacked and the edge-sealing fabric 200 covers the ends of the multiple three-dimensional fabrics 100.

[0450] In this embodiment, multiple three-dimensional fabrics 100 are stacked, forming a multi-layered structure that improves the water absorption and evaporation of the wettable substrate 402. The edge-sealing fabric 200, by wrapping the ends of the multiple three-dimensional fabrics 100, effectively seals the edges, reducing the number of edge-sealing fabrics 200 required. Furthermore, the multiple three-dimensional fabrics 100 are connected by the edge-sealing fabric 200, improving the overall structural strength and morphological stability of the multiple three-dimensional fabrics 100. Simultaneously, the edge-sealing fabric 200 guides liquid to the ends of the multiple three-dimensional fabrics 100, improving the uniformity of liquid permeation.

[0451] For example, the number of three-dimensional fabrics 100 can be 4 to 6.

[0452] In some embodiments provided in this application, as shown in Figures 42, 43 and 44, the three-dimensional fabric 100 includes: a first substrate 110, a second substrate 120 and a second connecting fiber 130. The first substrate 110 is provided with a first vent 111. The second substrate 120 is spaced apart from the first substrate 110 along a first direction and is provided with a second vent 121. The second connecting fiber 130 connects the first substrate 110 and the second substrate 120 respectively.

[0453] In this embodiment, the structure of the three-dimensional fabric 100 is defined. A first substrate 110 and a second substrate 120 are disposed opposite to each other, with a windward side 112 and a leeward side 122 respectively disposed on the first substrate 110 and the second substrate 120. A first vent 111 and a second vent 121 are connected to form an airflow passage, allowing airflow to enter through the first vent 111 and exit through the second vent 121. A second connecting fiber 130 is located between the first substrate 110 and the second substrate 120, connecting them to form a three-dimensional structure.

[0454] In one embodiment, there are multiple second connecting fibers 130, and any one of the second connecting fibers 130 is connected to the first substrate 110 and the second substrate 120 respectively.

[0455] In another embodiment, the number of second connecting fibers 130 is one, and the second connecting fiber 130 continuously passes through the plurality of first vent holes 111 and the plurality of second vent holes 121.

[0456] The second connecting fiber 130 can absorb liquid or allow liquid to adhere to its surface, increasing the surface area of ​​the three-dimensional fabric 100. This improves the liquid adsorption efficiency of the three-dimensional fabric 100, thereby enhancing its water absorption and evaporation effects. Furthermore, during the evaporation process, scale easily precipitates on the three-dimensional fabric 100. This three-dimensional structure improves the water retention and air permeability of the three-dimensional fabric 100, thus preventing scale from reducing its humidification capacity.

[0457] For example, the materials of the first substrate 110 and the second substrate 120 can be at least one of natural fibers, metal fibers or resin fibers, and the material of the second connecting fiber 130 can be a resin material.

[0458] In some embodiments provided in this application, as shown in Figures 42 and 44, the shapes of the first vent 111 and the second vent 121 include circles or polygons, wherein the diameter of the circle or the longest diagonal of the polygon is greater than or equal to 2 mm.

[0459] In this embodiment, when the first vent 111 and the second vent 121 are circular through holes, the diameter of the circle is less than or equal to 2 mm. When the first vent 111 and the second vent 121 are polygonal through holes, the longest diagonal of the polygon is less than or equal to 2 mm, and the diagonal of the polygon is the distance between its two endpoints. When the polygon is a triangle, the longest diagonal of the polygon is the longest side length of the triangle. By limiting the minimum threshold of the vents on the three-dimensional fabric 100, the opening size is limited to a reasonable range to prevent the opening from being too small, which would cause the liquid to form a film and block the opening. This suppresses the increase in pressure loss during liquid supply, improves the flow state of the first vent 111 and the second vent 121, improves the air permeability of the three-dimensional fabric 100, and thus improves the humidification effect of the three-dimensional fabric 100.

[0460] In some embodiments provided in this application, as shown in FIG44, a plurality of second connecting fibers 130 form a connecting fiber group around the first vent 111, and the number of second connecting fibers 130 in the connecting fiber group is 4 to 50.

[0461] In this embodiment, the number of second connecting fibers 130 surrounding the first vent is limited, allowing liquid to adhere not only to the second connecting fibers 130 but also to the gaps between adjacent second connecting fibers 130 through capillary action. This increases the amount of liquid adhering to the second connecting fibers 130, improving the moisturizing effect of the three-dimensional fabric 100. Furthermore, it prevents an excessive number of second connecting fibers 130 from hindering airflow within the three-dimensional fabric 100.

[0462] In one embodiment, the fan assembly 30 and the wettable substrate 402 are disposed opposite each other along the height direction.

[0463] In this embodiment, the airflow drawn by the fan assembly 30 can pass through the wettable substrate 402 and introduce the moisture on the wettable substrate 402 into the airflow, thereby increasing the moisture content in the air and humidifying the air.

[0464] This application also provides a humidification device 1, which includes a humidification component 40. The humidification component 40 includes a wet curtain support 401 and a wettable substrate 402. The wet curtain support 401 is used to support the wettable substrate 402. As shown in Figures 48 to 54, the wet curtain support 401 includes a water distribution tray 403. The bottom plate 4034 of the water distribution tray 403 is provided with water distribution holes 4039. The water distribution holes 4039 are used to guide the liquid in the water distribution tray 403 to the wettable substrate 402. At least one side wall of the water distribution tray 403 is provided with a water guiding surface 4035, which is inclined from the side wall toward the water distribution hole 4039.

[0465] In this embodiment, the water distribution plate 403 can contain liquid, the wettable substrate 402 is located below the water distribution plate 403, and the water distribution hole 4039 penetrates the bottom plate 4034 of the water distribution plate 403, so that the liquid in the water distribution plate 403 can flow to the top of the wettable substrate 402, thereby wetting the wettable substrate 402.

[0466] At least one sidewall of the water distribution plate 403 has an inclined water guiding surface 4035 at its bottom. The water guiding surface 4035 can be a plane or a curved surface. The water guiding surface 4035 is inclined toward the direction of the water distribution hole 4039, so that the bottom of the water guiding surface 4035 is close to the water distribution hole 4039. The liquid in the water distribution plate 403 flows into the water distribution hole 4039 along the inclined direction of the water guiding surface 4035, so that the water guiding surface 4035 can guide the liquid.

[0467] For example, the water distribution hole 4039 can be a round hole or an elongated hole, and the maximum opening size of the water distribution hole 4039 is 2 mm to 5 mm. The water holding depth of the water distribution tray 403 is 10 mm to 12 mm. The number of water distribution holes 4039 is 16 to 22, and the multiple water distribution holes 4039 are distributed circumferentially at intervals on the bottom plate 4034 of the water distribution tray 403, so that the liquid can flow evenly to the wettable substrate 402, thereby improving the water guiding efficiency and water guiding uniformity of the water distribution tray 403.

[0468] The water guide surface 4035 guides the liquid within the water distribution tray 403, making its surface smoother and flatter, reducing cleaning dead zones, and facilitating cleaning by the user. This allows the water distribution tray 403 to be placed in a dishwasher for automatic cleaning, improving the convenience of cleaning and maintenance. Furthermore, the water guide surface 4035 simplifies the flow guidance structure of the water distribution tray 403, thereby reducing manufacturing difficulty and cost, and minimizing potential malfunctions. Additionally, the water guide surface 4035 is inclined towards the water distribution hole 4039, causing the cross-section of the water distribution tray 403 to gradually narrow, reducing the bottom wall area and increasing the depth of liquid retention within the tray. This ensures that even when the tray is slightly tilted, the liquid still covers the bottom of the tray 403 and flows into the water distribution hole 4039, improving the stability of the flow guidance.

[0469] In some embodiments provided in this application, as shown in Figures 49, 50 and 54, the water distribution plate 403 includes: a first baffle 4036 and a second baffle 4037 extending along the height direction from both sides of the edge of the base plate 4034, the second baffle 4037 being arranged radially outward around the first baffle 4036; and a water guiding surface 4035 being disposed on the first baffle 4036 and / or the second baffle 4037.

[0470] In this embodiment, the structure of the water distribution plate 403 is defined. The first baffle 4036 and the second baffle 4037 are connected to both sides of the base plate 4034 and extend along the height direction. In Figure 50, the arrow at position X points to the height direction. The base plate 4034, the first baffle 4036, and the second baffle 4037 enclose a liquid-containing space. A water-guiding surface 4035 is provided on the first baffle 4036 and / or the second baffle 4037, allowing the liquid between the first baffle 4036 and the second baffle 4037 to flow out through the water distribution hole 4039 of the base plate 4034. The first baffle 4036 encloses an installation space, and the second baffle 4037 surrounds the outer periphery of the first baffle 4036, making the water distribution plate 403 a hollow structure.

[0471] For example, the first baffle 4036 can be formed into a circle or a polygon.

[0472] In one embodiment, as shown in FIG50, a water guiding surface 4035 is disposed on the first baffle 4036 and the second baffle 4037. Water guiding surfaces 4035 are provided on both sides of the water distribution hole 4039, enabling the water guiding surfaces 4035 to simultaneously guide the liquid on both sides of the water distribution hole 4039, thereby expanding the guiding range of the water guiding surfaces 4035 and improving the guiding efficiency of the water distribution plate 403. Furthermore, the water guiding surfaces 4035 on both sides improve the contraction efficiency of the bottom of the water distribution plate 403, further reducing the bottom wall area of ​​the water distribution plate 403, making it easier for the liquid to cover the bottom of the water distribution plate 403, and further improving the stability of the guiding flow of the water distribution plate 403.

[0473] In another embodiment, as shown in FIG54, the water guiding surface 4035 is provided on the first baffle 4036, which expands the accommodating space of the water distribution plate 403, enabling the water distribution plate 403 to accommodate more liquid.

[0474] In some embodiments provided in this application, as shown in FIG50, the height of the first baffle 4036 is less than or equal to the height of the second baffle 4037.

[0475] In this embodiment, the bottom surface of the base plate 4034 is used as the height reference. In Figure 50, H4 represents the height of the first baffle 4036, and H5 represents the height of the second baffle 4037. H4 is less than or equal to H5. The second baffle 4037 is located on the outer periphery of the first baffle 4036, and the first baffle 4036 is closer to the center of the humidifier 1 relative to the second baffle 4037. It can be understood that the components inside the humidifier 1 are relatively concentrated near the center. The height difference between the first baffle 4036 and the second baffle 4037 reduces the space occupied by the water distribution plate 403 near the center, improves the compactness of the structure at the center of the humidifier 1, optimizes the internal layout of the humidifier 1, and enhances the support effect of the water distribution plate 403 on the peripheral components. Furthermore, the installation space is used to accommodate the fan assembly 30, which is connected to the top of the first baffle 4036. The height of the first baffle 4036 is relatively low, which reduces the height of the fan assembly 30, thereby reducing the distance between the fan assembly 30 and the wettable substrate 402 assembly, shortening the airflow path, reducing the airflow resistance, improving the airflow stability, and improving the humidification efficiency of the humidification device 1.

[0476] In some embodiments, the water guiding surface 4035 includes a first inclined surface 40351 and a second inclined surface 40352 respectively disposed on the first baffle 4036 and the second baffle 4037. In the cross-section of the water distribution plate 403 along the height direction, the angle between the first inclined surface 40351 and the first baffle 4036 is less than or equal to the angle between the second inclined surface 40352 and the second baffle 4037. In Figure 50, A is the angle between the first inclined surface 40351 and the first baffle 4036, and B is the angle between the second inclined surface 40352 and the second baffle 4037, where A is less than or equal to B. Since the height of the first baffle 4036 is relatively low, the tilt angle of the first inclined surface 40351 relative to the first baffle 4036 is relatively large, thereby increasing the height of the first baffle 4036 extending beyond the first inclined surface 40351, improving the water-blocking capacity of the inner side of the water distribution plate 403, and reducing the overflow generated when the water distribution plate 403 is tilted.

[0477] In some embodiments provided in this application, as shown in FIG49, the second baffle 4037 or the first baffle 4036 is provided with an overflow hole 4032, which passes through the water distribution plate 403.

[0478] In this embodiment, the overflow hole 4032 extends through the inner and outer sides of the water distribution plate 403, and a preset distance is provided between the inlet of the overflow hole 4032 and the bottom wall of the water distribution plate 403. When there is too much liquid in the water distribution plate 403, the liquid overflows the inlet of the overflow hole 4032 and flows out of the water distribution plate 403 through the overflow hole 4032 to flow into the liquid storage tank 10.

[0479] In some embodiments, the overflow hole 4032 is provided on the first baffle 4036, so that the overflow hole 4032 is located on the side of the water distribution plate 403 near the center, so that when the liquid overflows, it can flow out close to the inner side of the water distribution plate 403, so as to prevent the liquid from leaking out from the joint of the body 10 when it overflows along the outer side, and so that the liquid can overflow into the storage tank more safely and smoothly.

[0480] In other embodiments, since the area of ​​the second baffle 4037 is larger than the area of ​​the first baffle 4036, the overflow hole 4032 is located on the second baffle 4037, which makes the space for the overflow hole 4032 more sufficient, the setting position more convenient and flexible, and the number of holes more numerous, which is conducive to improving the overflow effect of the overflow hole 4032.

[0481] For example, there can be multiple overflow holes 4032, which are spaced apart circumferentially along the water distribution plate 403. The overflow holes 4032 can be strip-shaped holes extending circumferentially along the water distribution plate 403. The overflow holes 4032 can be located on the first baffle 4036.

[0482] In some embodiments provided in this application, as shown in Figures 49, 51 and 52, the wet curtain support 401 further includes an overflow portion 4033. The overflow portion 4033 is disposed on the base plate 4034 and extends in a direction away from the base plate 4034. The height of the overflow portion 4033 is less than the height of the first baffle 4036. An overflow hole 4032 is disposed on the overflow portion 4033 and extends through the overflow portion 4033 in the height direction.

[0483] In this embodiment, the bottom plate 4034 of the water distribution pan 403 is provided with an overflow portion 4033. The overflow portion 4033 extends in a direction away from the bottom plate 4034. For example, the overflow portion 4033 can extend upward in the height direction. The distance between the top surface of the overflow portion 4033 and the bottom surface of the bottom plate 4034 is the height of the overflow portion 4033. In Figure 51, H6 is the height of the overflow portion 4033. The height of the overflow portion 4033 is less than the height of the first baffle 4036, that is, H6 is less than H4, so that when there is excess liquid, it can flow out through the overflow hole 4032. The overflow hole 4032 is provided in the space enclosed by the overflow portion 4033. When the liquid level in the water distribution pan 403 is higher than the top surface of the overflow portion 4033, the liquid flows downward out of the water distribution pan 403 through the overflow hole 4032. It is understandable that, due to the relatively small height of the first baffle 4036, extending the overflow hole 4032 laterally into the first baffle 4036 would result in a small opening area for the overflow hole 4032, affecting the structural strength of the first baffle 4036. By providing the overflow section 4033, the overflow hole 4032 extends longitudinally into the overflow section 4033, increasing the opening area of ​​the overflow hole 4032 and its drainage capacity, allowing excess liquid in the water distribution pan 403 to be discharged promptly and effectively.

[0484] For example, the overflow portion 4033 is connected to the first baffle 4036, and the first baffle 4036 and the overflow portion 4033 together form an overflow hole 4032, which simplifies the structural shape inside the water distribution plate 403, reduces the cleaning dead corners inside the water distribution plate 403, and makes the water distribution plate 403 easier to clean. Furthermore, it improves the structural strength of the first baffle 4036 and the overflow portion 4033.

[0485] In some embodiments provided in this application, as shown in Figures 48, 50, 51 and 53, the wet curtain support 401 further includes: a water guide rib 406, which is connected to the base plate 4034 and extends vertically downward from the base plate 4034. The end of the water guide rib 406 is used to abut against the top wall of the wettable substrate 402.

[0486] In this embodiment, a water-guiding rib 406 is disposed on the base plate 4034 of the water distribution tray 403 and surrounds the circumference of the water distribution tray 403. The water-guiding rib 406 extends downward in a direction away from the base plate 4034, such that the bottom end of the water-guiding rib 406 abuts against the top wall of the wettable substrate 402. When liquid overflows along the side wall of the water distribution tray 403, the water-guiding rib 406 can guide the flow of liquid, allowing the liquid to flow downward along the water-guiding rib 406 to the wettable substrate 402. Furthermore, the water-guiding rib 406 abutting against the top wall of the wettable substrate 402 reduces the movement of the wettable substrate 402 and improves the stability of the wettable substrate 402 after installation.

[0487] For example, the water guide rib 406 is located on the side of the water distribution hole 4039 near the second baffle 4037.

[0488] In some embodiments provided in this application, as shown in FIG48, the wet curtain bracket 401 further includes a support frame 405, which is connected to the bottom wall of the water distribution pan 403, and the support frame 405 is used to support the wettable substrate 402.

[0489] In this embodiment, the support frame 405 is located below the water distribution plate 403. When installing the wettable substrate 402, the wettable substrate 402 is fitted onto the outer periphery of the support frame 405, so that the support frame 405 supports the inner side of the wettable substrate 402. The support frame 405 provides structural support for the wettable substrate 402, keeping the wettable substrate 402 in an unfolded state, reducing deformation and collapse of the wettable substrate 402 in a wet state, thereby improving the moisturizing and evaporation effects of the wettable substrate 402.

[0490] In some embodiments provided in this application, as shown in Figures 50, 51 and 53, the support frame 405 includes a wind deflector 4051, which is connected to the water distribution plate 403 and extends along the height direction.

[0491] In this embodiment, the baffle plate 4051 is located on the leeward side of the wettable substrate 402 to prevent it from affecting the contact between the wettable substrate 402 and the airflow. The baffle plate 4051 surrounds the bottom plate 4034 of the water distribution tray 403 and extends downward in the height direction to abut against the side wall of the wettable substrate 402. It should be noted that after the wettable substrate 402 is installed, a gap will be formed between its top and the bottom of the water distribution tray 403. The baffle plate 4051 covers the gap at the top of the wettable substrate 402 to prevent airflow from flowing directly into the fan assembly 30 from the top gap, thus preventing the airflow from bypassing the wettable substrate 402. The baffle plate 4051 allows more airflow to pass through the wettable substrate 402, increasing the airflow rate through the wettable substrate 402, thereby improving the evaporation and humidification effects of the wettable substrate 402.

[0492] In some embodiments provided in this application, as shown in Figures 54 and 55, a water supply pipe 404 connected to the water distribution plate 403 is provided on the support frame 405.

[0493] In this embodiment, the support frame 405 is provided with a water supply pipe 404 extending along the height direction. A water channel is formed inside the water supply pipe 404. The two ends of the water supply pipe 404 are respectively connected to the water pump assembly 20 and the water distribution plate 403, so that the liquid output from the water pump assembly 20 can enter the water distribution plate 403 through the water channel, thereby allowing the liquid in the liquid storage tank to smoothly enter the water distribution plate 403, making the liquid circuit in the humidification device 1 more complete.

[0494] For example, the water pipe 404 is connected to the inner first baffle 4036 to reduce the space occupied by the support frame 405 and improve the compactness of the structure.

[0495] In some embodiments provided in this application, as shown in Figures 50, 51, 53 and 55, the support frame 405 further includes a support frame 4052, which is detachably connected to or integrally formed with the wind deflector 4051. The support frame 4052 has a hollowed-out portion, which allows the substrate 402 to be wetted and fitted onto the outside of the support frame 4052.

[0496] In this embodiment, the support frame 4052 is located below the baffle plate 4051, and the wettable substrate 402 is sleeved on the support frame 4052. The support frame 4052 provides structural support for the wettable substrate 402, keeping it in an unfolded state and reducing deformation and collapse of the wettable substrate 402 in a wet state. After flowing through the wettable substrate 402 assembly, the airflow exits through the perforated portion. The perforated portion, while providing support, allows for smooth airflow, thereby improving the evaporation and humidification effects of the wettable substrate 402.

[0497] In some embodiments, as shown in FIG55, the support frame 4052 and the wind deflector 4051 are respectively provided with mutually cooperating slots and buckles. The snap-fit ​​connection improves the detachable connection between the support frame 4052 and the wind deflector 4051, improves the convenience of assembling the wet curtain bracket 401, facilitates the installation and cleaning of the support frame 405, and reduces cleaning dead corners.

[0498] In other embodiments, as shown in Figure 51, the support frame 4052 and the wind deflector 4051 are integrally formed, thereby optimizing the manufacturing process of the support frame 405 and improving production efficiency. Furthermore, the integral forming process eliminates the need for a positioning connection structure between the two, simplifying the product structure of the support frame 405 and reducing its structural complexity.

[0499] For example, the hollowed-out portion can be composed of intersecting transverse ribs and longitudinal ribs, with multiple transverse ribs and multiple longitudinal ribs distributed at intervals around the transverse ribs.

[0500] In some embodiments provided in this application, as shown in Figures 50, 51 and 53, the support frame 405 further includes: a base 4053, which is connected to the bottom of the support frame 4052. The base 4053 extends radially along the support frame 4052. The base 4053 is provided with a third inclined surface 40531, which is inclined in a direction away from the support frame 4052.

[0501] In this embodiment, the base 4053 is located below the support frame 4052 and extends radially along the support frame 4052. The base 4053 can prevent the wettable substrate 402 from sliding downward in a wet state.

[0502] For example, the base 4053 is provided with a base limiting part 40532, which limits the wettable substrate 402 by abutting against the bottom of the wettable substrate 402, further improving the stability of the wettable substrate 402 after installation. The base limiting part 40532 can be a limiting rib, or it can be a bend forming a corner or step, so that the wettable substrate 402 accumulates on the base limiting part 40532, increasing the friction between the base 4053 and the wettable substrate 402, thereby limiting the wettable substrate 402.

[0503] The third inclined surface 40531 is located on the top surface of the base 4053. As the third inclined surface 40531 extends radially outward, it slopes downward away from the support frame 4052. The third inclined surface 40531 can guide the flow of liquid, allowing the liquid flowing out of the wettable substrate 402 to flow downward along the third inclined surface 40531 out of the support frame 405, preventing liquid accumulation at the bottom of the support frame 405. Furthermore, the downward slope of the third inclined surface 40531 increases the openness of the outer periphery of the support frame 405, facilitating the fitting of the wettable substrate 402 onto the outside of the support frame 4052 and improving the ease of installation of the wettable substrate 402.

[0504] An embodiment of this application also provides a humidification device 1, which includes a humidification assembly 40, as shown in FIG55. The humidification assembly 40 includes a wettable substrate 402 and a wet curtain support 401 provided in any of the above embodiments. The wettable substrate 402 is placed on the outside of the wet curtain support 401.

[0505] In this embodiment, the wettable substrate 402 is disposed in the water distribution pan 403, which contains water within a specified depth range to meet the required water supply for wetting the wettable substrate 402, thereby keeping the wettable substrate 402 in a moist state.

[0506] In one embodiment, the wettable substrate 402 is made of fiber. The wettable substrate 402 and the antibacterial agent are synergistically combined at a high temperature of 130°C (mainly in the form of a co-bath), chemically bonding the antibacterial agent to the polyester molecular chain. The active groups in the antibacterial agent (including but not limited to amino and carboxyl groups) combine with the ester groups of the polyester to form new covalent bonds, or the hydroxyl or carboxyl groups at the end of the polyester molecular chain combine with the active functional groups of the antibacterial agent (including but not limited to epoxy groups) at high temperature to form new covalent bonds. These chemical bonds with high bond energy can ensure that the antibacterial agent can still be firmly attached to the fiber when the wettable substrate 402 is washed with water, which can improve the longer-lasting antibacterial and antifungal effect. At temperatures of 125-145℃, such as 130℃, polyester may be in a highly elastic state, and the movement of polyester molecular chains increases. Antibacterial agents can penetrate into the micropores on the surface of the fiber or even into the fiber through diffusion, forming a physical graft. This can improve the antibacterial effect and make the antibacterial agent more firmly bonded to the polyester fiber, as well as the antibacterial and antifungal (such as Aspergillus niger and Serratia marcescens) effect and withstand multiple washes.

[0507] In one embodiment, the wettable substrate 402, antibacterial agent, and colorant (pigment, dye) are added together to the dyeing vat. The vat is kept sealed at a temperature of 125-145°C, for example, 130°C, to prevent the antibacterial agent from oxidizing, decomposing, or volatilizing. This method improves the bonding efficiency between the antibacterial agent and the polyester fiber, and combines the dyeing and antibacterial agent addition processes into one, improving process efficiency and reducing production costs.

[0508] In one embodiment, the wettable substrate 402 is made of fiber. The polyester fiber is selected with an irregular cross-section (cross-shaped, triangular, trefoil, X-shaped, etc.) to increase the specific surface area of ​​the fiber, increase the area for the antibacterial agent to bond with the surface of the polyester fiber, increase the possibility of the antibacterial agent bonding with the polyester molecular chain, and enhance the adhesion of the antibacterial agent. The fiber is a synthetic fiber made of PET (range: PET, PP, PA, PAN, PVA, etc.). In one embodiment, the upper and lower layers of this wettable substrate 402 (woven fabric, mesh fabric, grey fabric) are made of yarn twisted from PET antibacterial fibers with irregular cross-sections (range: cross-shaped, triangular, trefoil, X-shaped, etc.), and the yarn specification is 150D / 144F (range 50D-300D, 36F-288F).

[0509] In one embodiment, a white wettable substrate 402 (woven fabric, mesh fabric, grey fabric) is added to a dyeing vat along with 0.5% (range: 0.1%-3.0%) of a zinc-based antibacterial agent and 5.0% (range: 2.0-8.0%) of a polyester disperse dye. The pH value of the water in the dyeing vat is adjusted to 4.5-5.5 (range: pH value 3-8), and the dyeing and antibacterial agent addition process is started. In another embodiment, the vat is kept at a high temperature of 130°C (range: 125-145°C) for 30 minutes (range: 20-60 minutes) to ensure that the antibacterial agent is fully and well bonded to the polyester fiber molecular chains of the wettable substrate 402.

[0510] In one embodiment, four layers (range: 2-8 layers) of dyed and antibacterial-added wettable substrate 402 are stacked and sewn together to form an antibacterial wettable substrate 402. This antibacterial wettable substrate 402 is soaked in a 39% concentration citric acid solution for 2 hours, and then washed clean in a washing machine. This citric acid soaking and washing machine cycle is repeated 125 times. The bactericidal rate of the wettable substrate 402 against Aspergillus niger is still above 90%.

[0511] This application provides a method for preparing an antibacterial, colored, wettable substrate, comprising the following steps:

[0512] The synthetic fiber wet curtain white fabric, antibacterial agent, and dye are mixed in water, and the pH value of the resulting aqueous solution is adjusted to 3-8. The solution is then kept at a high temperature of 125-145℃ to obtain an antibacterial colored wet curtain. The antibacterial agent is covalently bonded to the synthetic fiber wet curtain white fabric fibers.

[0513] In some of the technical solutions provided in this application, dyes (colorants) and antibacterial agents are mixed at a temperature of 125-145℃ to form a mixture, and the wet curtain is immersed in the mixture.

[0514] Some technical solutions of this application provide a humidification component, which includes: a wettable substrate and a wettable support. The wettable substrate is placed on the outside of the wettable support and contains a colorant and an antibacterial agent. The wettable substrate is the antibacterial colored wettable substrate obtained by the above preparation method.

[0515] The white fabric of the wet curtain is made of fiber. The white fabric and antibacterial agent can be synergistically combined at a high temperature of 130°C (mainly in the form of co-bath). The antibacterial agent is chemically bonded to the polyester molecular chain. The active groups in the antibacterial agent (including but not limited to amino and carboxyl groups) combine with the ester groups of polyester to form new covalent bonds. Alternatively, the hydroxyl or carboxyl groups at the end of the polyester molecular chain combine with the active functional groups of the antibacterial agent (including but not limited to epoxy groups) at high temperature to form new covalent bonds. These chemical bonds with high bond energy can ensure that the antibacterial agent can still be firmly attached to the fiber when the wettable substrate 402 is washed with water, which can improve the longer-lasting antibacterial and anti-mildew effect. At temperatures of 125-145℃, such as 130℃, polyester may be in a highly elastic state, and the movement of polyester molecular chains increases. Antibacterial agents can penetrate into the micropores on the surface of the fiber or even into the fiber through diffusion, forming a physical graft. This can improve the antibacterial effect and make the antibacterial agent more firmly bonded to the polyester fiber, as well as the antibacterial and antifungal (such as Aspergillus niger and Serratia marcescens) effect and withstand multiple washes.

[0516] In one embodiment, the wet-screen white fabric, antibacterial agent, and colorant (pigment, dye) are placed together in a dyeing vat. The vat is kept sealed at a temperature of 125-145°C, for example, 130°C, to prevent the antibacterial agent from oxidizing, decomposing, or volatilizing. This method improves the binding efficiency of the antibacterial agent to the polyester fiber and combines the dyeing and antibacterial agent addition processes into one, improving process efficiency and reducing production costs.

[0517] This application also provides a method for preparing an antibacterial colored three-dimensional mesh fabric, which can be used to fabricate a wettable substrate. The method includes the following steps:

[0518] A three-dimensional mesh white fabric, an antibacterial agent, and a dye are mixed in water. The pH of the resulting aqueous solution is adjusted to 3-8, and the mixture is then kept at a high temperature of 125-145℃ to obtain an antibacterial colored three-dimensional mesh fabric. The fiber material of the three-dimensional mesh white fabric is one or more of polyester, polyvinyl alcohol, polyamide, and polyacrylonitrile. The antibacterial agent is covalently bonded to the fibers of the three-dimensional mesh white fabric.

[0519] The method of this application employs a three-dimensional mesh fabric with antibacterial components fixed by covalent bonds, which can improve the number of times the antibacterial components can withstand water washing, reduce the content of microorganisms in the airflow after long-term use, reduce the amount of odor substances released, and extend the effective duration of antibacterial action, thus facilitating its good application in the humidification device 1.

[0520] The method of this application first provides a three-dimensional mesh white fabric, which is manufactured from synthetic fibers through three-dimensional knitting. The synthetic fibers used are one or more of polyester fibers, polyvinyl alcohol fibers, polyamide fibers, and polyacrylonitrile fibers, with polyester fibers being a suitable choice. Polyester fibers are mainly represented by polyethylene terephthalate (PET fiber, commonly known as polyester), which has high strength; other types include polybutylene terephthalate (PBT) and polypropylene terephthalate (PTT). Polyamide fibers include polyamide 6 and polyamide 66 fibers, which can be called PA fibers, nylon fibers, etc., and have good mechanical properties, are wear-resistant, and corrosion-resistant. Polyacrylonitrile fiber, abbreviated as PAN fiber, is usually traded as acrylic fiber, and its main monomer is acrylonitrile, exhibiting good chemical stability. Polyvinyl alcohol fiber, abbreviated as PVA fiber, is mostly made from highly polymerized polyvinyl alcohol (PVA) as raw material.

[0521] In one embodiment, the synthetic fiber has an irregular cross-section, including but not limited to: flat, C-shaped, triangular, tri-elliptical, Y-shaped, rhomboid, cross-shaped, X-shaped, pentagonal, or various hollow cross-sections, such as triangular, tri-elliptical, Y-shaped, cross-shaped, or X-shaped cross-sections. Compared to circular cross-section fibers, the specific surface area is increased, which can increase the area for antibacterial components to bond with the fiber surface, increase the possibility of bonding, and help improve the antibacterial effect while ensuring the water absorption of the mesh fabric. The synthetic fiber can be a monofilament (a single filament) with a specification of 0.8D-150D, or 40D-120D; or it can be a fiber composite yarn (i.e., yarn) with a specification of 20D-150D, or 4F-144F. Denier (D) refers to the weight in grams of 9000 meters of yarn or fiber at a standard moisture regain. It is a unit of length, and the higher the weight, the coarser the yarn or fiber. It is often used to indicate the specifications of chemical fiber filaments. F number is the number of holes.

[0522] In the embodiments of this application, the three-dimensional mesh white fabric has a three-dimensional knitted structure, including a first surface layer, a second surface layer, and an intermediate yarn layer that passes through and connects the two respectively; both the first surface layer and the second surface layer have openings; the overall appearance is white.

[0523] Figure 56 is a schematic diagram of the knitted structure of a three-dimensional mesh white fabric according to some embodiments of this application. In the diagram, 400 is the three-dimensional mesh white fabric, 440 is the first surface layer, 441 is the edge of the first opening, 442 is the first mesh, 450 is the intermediate filament layer, 460 is the second surface layer, 461 is the edge of the second opening, and 462 is the second mesh. In this embodiment, the first surface layer 440, the intermediate filament layer 450, and the second surface layer 460 are sequentially arranged. The intermediate filament layer 450 connects the first surface layer 440 and the second surface layer 460 respectively. This arrangement ensures the stability and reliability of the connection of the three-dimensional mesh white fabric 400. The first surface layer 440 and the second surface layer 460 are open surface layers made of chemical fibers, and the intermediate filament layer 450 is composed of the same chemical fibers, ensuring the water absorption and breathability of the three-dimensional mesh white fabric 400. In addition, the intermediate filament layer is mostly a single fiber with a diameter of 20D-300D; in some embodiments, the upper and lower surface layer fibers and part of the intermediate filament layer fibers are multiple microfibers combined into a bundle of composite filaments (yarns), and the total diameter of such composite filaments can range from 20D to 300D, of which single microfibers of 0.8-1.0D can also be used.

[0524] In one embodiment, a plurality of first openings are formed on the first surface layer 440, and a plurality of second openings corresponding to the first openings are formed on the second surface layer 460. The edges 441 of the first openings and the edges 461 of the second openings are connected by an intermediate filament layer 450, which improves the integrated fixed connection and ensures the reliability when used as a wettable substrate 402. The plurality of first openings and the plurality of second openings form a passage for air and water vapor. Such a three-dimensional mesh white fabric 400 has good air permeability and water absorption. When applied to the humidification device 1, it helps to deliver the water vapor formed in the humidification device 1 to the space to be humidified, and can also improve the humidification efficiency of the humidification device 1.

[0525] In this design, the edge portion 441 of the first opening and the edge portion 461 of the second opening are connected by an intermediate filament layer 450, which reduces ventilation resistance. Furthermore, the edge portion 441 of the first opening has multiple first mesh openings 442, and the edge portion 461 of the second opening has multiple second mesh openings 462. The intermediate filament layer 450 penetrates through the first mesh openings 442 and the second mesh openings 462, improving the connection between the first surface layer 440 and the second surface layer 460. The mesh structure of the three-dimensional mesh fabric is shown in Figure 57, approximating an elliptical mesh, with a long diagonal length of 2-7 mm and a short diagonal length of 1-5 mm. In some embodiments of this application, the thickness of the three-dimensional mesh white fabric can be 2-10 mm, and can be 3-7 mm; the fabric weight can be 100-900 g / m². 2 300-600g / m 2Furthermore, the water absorption ratio of the three-dimensional mesh white fabric can be 1.8-2.8, indicating good water absorption; its single-layer ventilation resistance at a face wind speed of 0.7 m / s is 0.5-3.0 Pa, showing low wind resistance. The water absorption ratio is calculated as: weight after water absorption / dry weight.

[0526] In this embodiment, the obtained three-dimensional mesh white fabric, together with antibacterial agent and dye, is put into water and subjected to high-temperature heat fixation treatment. That is, the pH value of the aqueous solution formed by mixing the materials is adjusted to 3-8, and the solution is kept at a high temperature of 125-145°C to obtain antibacterial colored three-dimensional mesh fabric.

[0527] The antibacterial agent possesses active groups or functional groups that can react and bind with some synthetic fiber molecules. It can be a zinc-based antibacterial agent (liquid) certified by the US EPA, offering high safety and antibacterial properties. Its weight percentage relative to the three-dimensional mesh white fabric can be 0.1-3%, further 0.5-2.5%. The antibacterial agent can be an organic zinc-based antibacterial agent, with the main component being zinc pyrithione (CAS13463-41-7); concentration: 30-50% (main active ingredient, by mass percentage); other components: ≤60%. Furthermore, the weight percentage of the dye relative to the three-dimensional mesh white fabric can be 2-8%, further 3-7%, for example 3%, 5%, or 6%.

[0528] Some embodiments of this application involve a three-dimensional mesh white fabric made of polyester, primarily using disperse dyes, with improved dyeing achieved through a high-temperature, high-pressure dyeing method (pressure 0.14-0.22 MPa). For the coloring of a three-dimensional mesh white fabric made of nylon, disperse dyes or acid dyes can be used. Specifically, embodiments of this application utilize a co-bath method to simultaneously perform the bonding reaction of the antibacterial agent and the dyeing process.

[0529] Through the above-mentioned high-temperature heat-setting process, the embodiments of this application can combine the zinc-based antibacterial agent certified by the US EPA to the surface of the three-dimensional mesh white fabric fiber, thereby improving the covalently bonded antibacterial components on the fiber surface, and thus improving the excellent antibacterial (Serratia marcescens) effect of the wettable substrate 402 of the humidifier 1 after multiple rubbing or washing in a washing machine for more than two years; at the same time, the combined high-temperature dyeing process can make the wettable substrate 402 retain the color uniformity, good color fastness, and color differentiation that is not easy to show dirt.

[0530] In the embodiments of this application, a three-dimensional mesh white fabric is bathed with an antibacterial agent and a dye (such as a disperse dye) and kept at a high temperature. The antibacterial components undergo a bonding reaction and are covalently fixed, while the dye is applied to the fiber. The bonding reaction and dyeing temperature can be 125-145°C, specifically 125-140°C, for example, 125°C, 130°C, or 135°C. The heat treatment is carried out in a closed system, such as a closed dyeing vat, for 20-60 minutes, or more specifically 30-50 minutes, to ensure sufficient fixation of the antibacterial components. This embodiment of the application does not require the use of hydrophilic silicone oil or other auxiliaries, is odorless, and has good safety and environmental friendliness.

[0531] Taking polyester three-dimensional mesh white fabric as an example, in a specific embodiment of this application, the three-dimensional mesh white fabric, together with EPA-certified zinc-based antibacterial agent and polyester disperse dye, can be put into a closed dyeing vat. The pH value of the water in the dyeing vat is adjusted to 3-8, and further to 4.5-5.5, and the dyeing and antibacterial agent addition process is started. Under the above-mentioned high temperature conditions, the antibacterial components are well bonded to the polyester fiber molecular chains of the three-dimensional mesh white fabric, which improves the binding efficiency of the antibacterial components and improves the uniform dyeing, which is conducive to improving the appearance quality of the product.

[0532] At high temperatures such as 130℃, polyester may be in a highly elastic state, increasing the mobility of the polyester molecular chains. The antibacterial agent can then penetrate the micropores on the fiber surface and even into the fiber interior through diffusion, forming a graft bond. This helps the antibacterial components bind more firmly to the polyester fibers, and the antibacterial and antifungal effects can withstand multiple washes. This embodiment combines the heat-setting process of the antibacterial agent with the dyeing process of the three-dimensional mesh white fabric, improving efficiency, reducing production costs, and simultaneously improving both color fastness and the bonding strength of the antibacterial components. Afterwards, this embodiment undergoes conventional washing and drying to obtain the finished antibacterial colored three-dimensional mesh fabric.

[0533] One embodiment of this application provides a humidification device 1, including a wettable substrate 402, which is made of an antibacterial colored three-dimensional mesh fabric obtained by the method described above. In some embodiments, the antibacterial colored three-dimensional mesh fabric is stacked in 2-8 layers and then sewn together to form the wettable substrate 402. As shown in FIG58 (400' is a colored three-dimensional mesh fabric), the aforementioned colored three-dimensional mesh fabric can be made into a wettable substrate 402 and placed in the humidification device 1, thereby improving the filtration and purification of incoming water vapor. Typically, two to eight layers of colored three-dimensional mesh fabric 400' can be selected to form the wettable substrate 402, and the multiple layers can be sequentially laminated and sewn together.

[0534] When the colored three-dimensional mesh substrate 400' of this application is used to make a wettable substrate 402 for use in a humidifier 1, the humidifier 1 is equipped with a liquid storage tank, and part of the wettable substrate 402 is placed in the liquid storage tank. A heater is installed in front of the wettable substrate 402 or in the liquid storage tank. By heating the air or water in the humidifier 1 and cooperating with the wettable substrate 402, the antibacterial effect of the humidifier 1 can be further improved. Typically, the water in the liquid storage tank can be heated to 60℃~70℃ and run for 25min to 30min, while cooperating with the wettable substrate 402. After long-term use (such as more than two years), the humidifier 1 achieves a sterilization rate of more than 99% against Aspergillus niger and Serratia marcescens, which can effectively improve the user's safety and health. The embodiments of this application are based on the excellent antibacterial and antifungal effects of the colored three-dimensional mesh 400'. The wettable substrate 402 and the humidifier 1 have improved antibacterial properties, safety, water resistance, and a long service life.

[0535] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "link" can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0536] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0537] In this specification, the terms "one embodiment," "some embodiments," "specific embodiments," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0538] The above are merely some embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A humidifying device, wherein, include: The body has a liquid injection port on its top. A fan assembly is located inside the machine body. The fan assembly forms a cavity that communicates with the liquid injection port. Liquid injected through the liquid injection port can flow out of the fan assembly through the cavity. A liquid storage tank is used to hold liquid, and the liquid flowing out of the fan assembly can flow into the liquid storage tank; The humidification component is located between the fan assembly and the liquid storage tank. When the fan assembly is running, the airflow disturbed by the fan assembly passes through the humidification component. A water pump assembly, at least partially connected to the liquid storage tank, is used to draw liquid from the liquid storage tank and deliver it to the humidification assembly.

2. The humidification device according to claim 1, wherein, The humidification device also includes: The power module is located inside the machine body; A heating module is located between the humidification component and the main body, and the heating module is electrically connected to the power module.

3. The humidification device according to claim 2, wherein, The water pump assembly is at least partially exposed outside the liquid storage tank, and the water pump assembly includes a power supply interface; The power supply module is located between the humidification component and the body. One end of the power supply module is electrically connected to the power module of the humidifier, and the other end of the power supply module is detachably electrically connected to the power supply interface.

4. The humidification device according to claim 1, wherein, The liquid storage tank includes: A drip tray for receiving liquid flowing out of the fan assembly; The enclosure has an open top, a detachable water tray is attached to the enclosure, and the humidification assembly is detachably attached to the water tray.

5. The humidification device according to claim 4, wherein, The water receiving tray also includes a receiving portion extending toward the bottom wall of the tank, the receiving portion forming a confluence channel and a seepage slit, the seepage slit communicating with the confluence channel and the liquid storage chamber of the tank; The water receiving tray includes a guide surface, which includes a first periphery and a second periphery with a height difference. The first periphery is along the circumferential edge connected to the confluence channel, and the second periphery is closer to the fan assembly than the first periphery.

6. The humidification device according to claim 5, wherein, The water pump assembly includes a guide wall, the top of which has a first distance from the central axis of the humidification device, and the bottom of which has a second distance from the central axis of the humidification device, the second distance being smaller than the first distance. The seepage slit is positioned toward the guide wall and maintains a set distance from the guide wall.

7. The humidification device according to claim 4, wherein, The water receiving tray is also provided with a lifting part, which extends toward the fan assembly. The top of the lifting part is provided with a first opening, which is connected to the liquid storage chamber of the box.

8. The humidification device according to claim 4, wherein, The humidification assembly includes a support frame and a wettable substrate disposed on the support frame, the support frame including a water distribution tray located on top of the wettable substrate; The water distribution pan has a water distribution channel for injecting water into the wettable substrate and a water outlet communicating with the water distribution channel. The water outlet is connected to the water outlet end of the water pump assembly.

9. The humidification device according to claim 8, wherein, The water distribution pan also includes an overflow hole and an overflow section located within the water distribution channel. The overflow section surrounds the overflow hole, and the overflow hole is connected to the water receiving pan.

10. The humidification device according to claim 8, wherein, The water receiving tray is provided with a clearance limiting part, and the water pump assembly extends at least partially through the clearance limiting part of the water receiving tray. The water pump assembly includes a power supply interface, and the power supply interface is at least partially exposed outside the clearance limiting part.

11. The humidification device according to claim 10, wherein, The water receiving tray is also provided with a second port, and the water outlet of the water pump assembly is connected to the water outlet through the second port. The avoidance and limiting part is farther away from the central axis of the humidification device relative to the second port.

12. The humidifying device according to any one of claims 1 to 11, wherein, The body also includes: Display panel; An air outlet grille is provided, and the liquid injection port is formed in the air outlet grille, which is located on the outer periphery of the display panel. The upper cover of the unit is connected to the outer periphery of the air outlet grille, and a button module is provided on the upper cover of the unit.

13. The humidification device according to claim 12, wherein, The body also includes: An air inlet housing is connected to the outer periphery of the upper cover of the unit. The air inlet housing is provided with multiple air inlets, which are provided corresponding to the humidification component. The air inlet housing is detachably disposed in the liquid storage tank.

14. The humidification device according to claim 12, wherein, The wind turbine assembly includes: An air guide bracket, wherein the air guide bracket has a motor cavity; A motor and a power module are disposed inside the motor cavity. The power module supplies power to the motor. The air guide bracket also forms a first pipeline channel communicating with the motor cavity. A first conductive wire connected to the power module extends out of the fan assembly through the first pipeline channel. The first conductive wire is used to supply power to the button module.

15. The humidification device according to claim 14, wherein, The air guide bracket also forms a second pipeline channel, through which a second conductive wire connected to the power module extends out of the fan assembly. The second conductive wire is used to supply power to the water pump assembly.

16. The humidification device according to claim 14, wherein, The air guide bracket also includes a motor compartment cover that covers the motor cavity, and the display panel is covered by the motor compartment cover.

17. A humidifying device, wherein, include: The liquid storage tank has a liquid storage cavity, the bottom wall of the liquid storage tank includes a limiting recess, and the top of the liquid storage tank includes a first limiting part, which extends radially into the liquid storage cavity along the humidification device. A water pump assembly is detachably disposed within the liquid storage chamber. At least a portion of the water pump assembly extends into the limiting recess to engage with the limiting recess. The limiting recess limits the water pump assembly along the circumferential direction of the liquid storage tank. The water pump assembly includes a second limiting portion that engages with the first limiting portion to limit the water pump assembly along the height direction of the liquid storage tank.

18. The humidification device according to claim 17, wherein, The water pump assembly includes a driving part, which is exposed outside the liquid storage tank; When the water pump assembly is in the working position, the first limiting part is farther away from the bottom wall of the liquid storage tank than the second limiting part, so as to limit the water pump assembly along the height direction; When the pushing part is subjected to a pushing force along the radial direction, the second limiting part separates from the first limiting part, and when the water pump assembly is subjected to a lifting force along the height direction, the water pump assembly moves out of the limiting recess to become detachable relative to the storage tank.

19. The humidification device according to claim 18, wherein, Along the height direction, a fitting gap is formed between the pushing part and the second limiting part, and when the water pump assembly is in the working position, the first limiting part extends into the fitting gap.

20. The humidification device according to claim 18, wherein, The limiting recess includes a limiting sidewall, which is opposite to the sidewall of the liquid storage tank; When the pushing part is subjected to the pushing force but not the lifting force, the limiting sidewall abuts against the water pump assembly to return the water pump assembly to the working position.

21. The humidification device according to claim 18, wherein, The water pump assembly includes a sliding fit part, which is connected to the side wall and bottom wall of the water pump assembly facing the liquid storage tank by an arc transition. When the pushing part is subjected to the pushing force, or during the process of the water pump assembly resetting to the working position, the sliding mating part slides along the side wall of the liquid storage tank.

22. The humidification device according to claim 18, wherein, The liquid storage tank includes an elastic buckle, and the pushing part includes a locking part for engaging with the elastic buckle for limiting; The liquid storage tank includes an assembly part, which is disposed on the first limiting part and extends along the height direction to be assembled with the water receiving tray of the humidification device. The assembly portion forms clearance notches at both ends along the circumferential direction and extends into the liquid storage tank at the clearance notches, and the elastic buckle is formed on the portion of the assembly portion extending into the liquid storage tank.

23. The humidifying device according to any one of claims 17 to 22, wherein, The water pump assembly includes a water inlet for communicating with the liquid storage chamber, at least a portion of which is exposed outside the limiting recess.

24. The humidification device according to claim 23, wherein, The water inlet includes multiple water inlets, at least some of which have their lower edges higher than or flush with the bottom wall of the liquid storage tank, and at least one of the water inlets has its lower edge lower than the bottom wall of the liquid storage tank.

25. The humidifying device according to any one of claims 17 to 22, wherein, The humidification device also includes: A water receiving tray, wherein the water receiving tray is detachably connected to the body of the liquid storage tank; A humidifying component is detachably mounted on the water receiving tray. The humidifying component includes a water supply pipe that passes through the water receiving tray and communicates with the water pump assembly.

26. The humidification device according to claim 25, wherein, The water receiving tray includes a manifold for accommodating scale inhibitors. The manifold is provided with a seepage slit facing the guide wall of the water pump assembly, and there is a preset distance between the seepage slit and the guide wall. The guide wall is inclined relative to the height direction.

27. The humidification device according to claim 26, wherein, The confluence channel includes a first sidewall opposite to the guide wall, and the seepage slit is disposed on the first sidewall and extends to the bottom wall of the confluence channel.

28. The humidifying device according to any one of claims 17 to 22, wherein, The water pump assembly includes: A water pump housing, the water pump housing including a receiving cavity, the second limiting part being disposed on the water pump housing, and the water pump housing being detachable relative to the liquid storage cavity; A water level detection component is disposed in the water pump housing and located within the receiving cavity.

29. A humidifying device, wherein, The humidification device includes: The top cover assembly is provided with a liquid injection port; A fan assembly, comprising an air guide bracket and a motor and a fan wheel located within the air guide bracket, the air guide bracket including a channel opening communicating with the liquid injection port, the air guide bracket including an air guide ring surrounding the outside of the fan wheel and a bottom shell connected to the air guide ring, the bottom shell including a drain hole and an annular guide portion, the guide portion being used to receive liquid flowing in from the channel opening and guide the liquid to the drain hole; A liquid storage tank is located on the side of the blower assembly opposite to the upper cover assembly, and the liquid storage tank is used to receive liquid flowing out from the drain hole; The guide section includes a first guide section connected to the air guide ring. The first guide section extends obliquely relative to the central axis of the motor. The first guide section extends obliquely from the air guide ring toward the central axis. The angle θ1 formed between the first guide section and the horizontal plane satisfies: 40°<θ1<65°.

30. The humidification device according to claim 29, wherein, The angle θ1 formed between the first guide section and the horizontal plane satisfies: 45°<θ1<55°.

31. The humidification device according to claim 29, wherein, The bottom shell includes an air inlet grille and a drain section surrounding the air inlet grille, and the drain section is provided with a plurality of drain holes; The end of the flow guide that is away from the air guide ring is connected to the drain section.

32. The humidification device according to claim 29, wherein, The bottom shell includes an air inlet grille connected to the channel opening and a drain section surrounding the air inlet grille, the drain section being provided with a plurality of drain holes; The flow guiding section further includes at least one second flow guiding section, wherein the second flow guiding section has a stepped structure with the adjacent first flow guiding section, and when there are multiple second flow guiding sections, the adjacent second flow guiding sections also have a stepped structure. Along the direction of liquid flow, the second guide section located downstream is connected to the discharge section.

33. The humidification device according to claim 31 or 32, wherein, The vertical height of the guide section is H, the radial width of the drain section in the horizontal direction is L1, and the radius of the air guide ring is L2. The air intake radius of the air intake grille is L3, where L3 = L2 - L1 - H × cosθ1, and 15mm ≤ H ≤ 45mm.

34. The humidification device according to claim 32, wherein, The first guide section and the second guide section are connected by a connecting section to form a stepped structure between the first guide section and the second guide section; and / or adjacent second guide sections are connected by a connecting section to form a stepped structure between adjacent second guide sections.

35. The humidification device according to claim 34, wherein, The connecting segment extends along the axis of the central axis; and / or The slope of the second guide section is the same as the slope of the first guide section.

36. The humidification device according to claim 32, wherein, Along the direction of liquid flow, the downstream second guide section is farther from the central axis than the upstream second guide section or the first guide section; and / or The first guide section and the second guide section form an angle at their respective connections with the connecting section.

37. The humidifying device according to any one of claims 29 to 32, wherein, The wind turbine includes an impeller disposed opposite to the guide section. The impeller has a windward side and a leeward side. A drainage channel is formed between the leeward side of the impeller and the guide section of the guide section. The drainage channel is connected to the channel opening.

38. The humidifying device according to any one of claims 29 to 32, wherein, include: The humidification component is located below the fan component; A water pump assembly is used to transport water from the storage tank to the humidification assembly to keep the humidification assembly in a humidified state. The airflow driven by the fan assembly passes through the humidified humidification assembly and is discharged from the channel port of the fan assembly and the liquid injection port.

39. A humidifying device, wherein, include: The top cover assembly is provided with a liquid injection port; A fan assembly includes an air guide bracket and an impeller rotatably disposed within the air guide bracket. The impeller includes an impeller disk, and the air guide bracket includes a flow guide portion. A drain channel is formed between the impeller disk and the flow guide portion. The air guide bracket is provided with a drain hole. The drain channel communicates with the injection port and the drain hole respectively. In a predetermined cross-section along the fan assembly, the diameter ratio of the impeller disk to the flow guide portion is W, where W satisfies: 0.78 < W < 0.

88. A liquid storage tank is located on the side of the blower assembly opposite to the top cover, and the liquid storage tank is used to receive liquid flowing out from the drain channel.

40. The humidification device according to claim 39, wherein, The air guide bracket includes: An air guide ring is formed to accommodate space. The air guide ring is connected to the upper cover and located on the side of the liquid injection port away from the central axis of the humidifier. The bottom shell is connected to the air guide ring. The bottom shell includes a flow guide portion that is inclined relative to the central axis and extends toward the upper cover. The flow guide portion and the impeller form the drainage channel.

41. The humidification device according to claim 40, wherein, The impeller includes multiple blades, and the blade disk is connected to the outside of the multiple blades. The blade disk is inclined relative to the central axis and extends towards the upper cover. The connection point between the air guide section and the air guide ring is higher than the free end of the impeller.

42. The humidification device according to claim 40, wherein, The flow guide includes a first flow guide section and a second flow guide section connected to each other. The first flow guide section is closer to the upper cover than the second flow guide section, and the second flow guide section is closer to the central axis than the first flow guide section. A bend angle is formed at the connection between the first guide section and the second guide section.

43. The humidification device according to claim 42, wherein, The second guide section is inclined relative to the central axis and extends toward the upper cover, and the first guide section is inclined relative to the central axis and extends toward the upper cover; Along the radial direction of the drainage channel, there is a second distance D2 between the second guide section and the impeller, and a first distance D1 between the first guide section and the impeller, where D1 < D2.

44. The humidification device according to claim 43, wherein, The second distance D2 between the second guide section and the impeller disk satisfies: 7mm < D2 ≤ 10mm; The first distance D1 between the first guide section and the impeller satisfies: 4mm≤D1≤7mm.

45. The humidifying device according to any one of claims 39 to 44, wherein, The air guide bracket also includes an air inlet grille connected to the air guide section, and there are multiple drain holes, which are spaced apart along the circumference of the humidification device on the air inlet grille.

46. ​​The humidifying device according to claim 45, wherein, The wind turbine assembly also includes: A baffle is provided on the air inlet grille, the impeller has a windproof end facing the air inlet grille, and the top end of the baffle is closer to the top cover than the bottom end of the impeller.

47. The humidifying device according to claim 46, wherein, The air inlet grille includes multiple vents communicating with the inner cavity of the air guide bracket. Along the radial direction of the fan assembly, the baffle is located between the vents and the drain hole.

48. The humidifying device according to any one of claims 39 to 44, wherein, The outlet area of ​​the drain channel is larger than the inlet area of ​​the drain channel.

49. A humidifying device, wherein, include: The top cover assembly includes a display panel, a drainage section, and an air outlet grille section arranged sequentially from the center to the outer periphery. The air outlet grille section is provided with multiple injection ports for liquid injection. A blower assembly, including a cavity communicating with the injection port; A liquid storage tank is located on the side of the blower assembly opposite to the upper cover assembly, and the liquid storage tank is used to receive the liquid discharged from the cavity; The drainage section and the air outlet grille section form a drainage groove that is recessed toward the fan assembly, and the drainage groove is used to collect liquid falling onto the upper cover assembly.

50. The humidifying device according to claim 49, wherein, The flow guide extends from one end of the display panel toward the side closer to the fan assembly, and the air outlet grille extends from one end connected to the flow guide toward the side away from the fan assembly to form the flow guide groove. The inner periphery of the air outlet grille is connected to the inner wall of the fan assembly.

51. The humidification device according to claim 50, wherein, The display panel protrudes outward in a direction away from the fan assembly; The injection port is formed between the outer and inner peripheries of the air outlet grille. The inner periphery of the air outlet grille is connected to the drainage portion. The height of the outer periphery of the air outlet grille and the height of the top of the display panel are both higher than the height of the inner periphery of the air outlet grille.

52. The humidification device according to claim 51, wherein, The height difference between the inner periphery of the air outlet grille and the apex of the upper cover assembly is H1, where H1 > 25 mm.

53. The humidification device according to claim 49, wherein, The drainage portion is sealed to the display panel, or the drainage portion is integrally formed with the display panel; and / or The air intake portion is connected to the inner periphery of the air outlet grille portion, or the air intake portion is integrally formed with the air outlet grille portion; and / or The display panel is a touch panel.

54. The humidification device according to claim 49, wherein, The outer surface of the drainage part is provided with guide ribs, which are used to guide the liquid dripping onto the display panel and the drainage part to the injection port.

55. The humidifying device according to any one of claims 49 to 54, wherein, The fan assembly includes a motor and a motor bracket for mounting the motor. The motor bracket includes a motor cavity recessed along the axial direction of the fan assembly to receive the motor. The motor bracket defines at least a portion of the cavity and is connected to the inner periphery of the air outlet grille. The fan assembly also includes an impeller connected to the motor. The impeller includes a hub and multiple blades connected to the hub. A flow guide channel is formed between the motor bracket and the leeward side of the hub. A drain hole communicating with the flow guide channel is provided on the hub.

56. The humidification device according to claim 55, wherein, The fan assembly also includes an air inlet grille, which is located on the side of the impeller away from the motor, and the projection of the drain hole in the vertical direction is located inside the air inlet grille. The liquid storage tank includes a water receiving tray, and the air inlet grille corresponds to the water receiving tray along the vertical direction.

57. The humidification device according to claim 55, wherein, The vertical projection of the drain hole avoids the blade.

58. The humidification device according to claim 55, wherein, The base of the fan assembly includes a flow guide section for receiving a portion of the liquid flowing out from the injection port, and the flow guide section has an inclined tendency relative to the axial direction of the fan assembly. The impeller also includes an impeller disk that is tilted relative to the axial direction. The impeller disk is connected to a plurality of blades and is located on the side of the blades away from the hub. A drainage channel is formed between the leeward side of the impeller disk and the guide portion. The drainage channel is used to discharge liquid from the fan assembly.

59. The humidification device according to claim 58, wherein, The housing of the fan assembly includes an air inlet grille for ventilation and a drain section surrounding the air inlet grille. The drain section is provided with a plurality of drain holes, which are connected to the drain channel.

60. The humidification device according to claim 59, wherein, The humidification device also includes: A humidification component is located between the fan assembly and the liquid storage tank, and the vertical projections of the drain hole and the liquid outlet hole are located within the cavity of the humidification component; A water pump assembly, at least partially disposed in the liquid storage tank, delivers the liquid stored in the liquid storage tank to the humidification assembly.

61. A humidifying device, wherein, include: Wettable substrate, said wettable substrate comprising: Three-dimensional fabric, used to absorb liquids; The edge-sealing fabric is connected to the end of the three-dimensional fabric and covers at least a portion of the three-dimensional fabric along a first direction, the first direction being the thickness direction of the three-dimensional fabric.

62. The humidification device according to claim 61, wherein, The edge-sealing fabric covers at least a portion of the three-dimensional fabric along a second direction, which is the direction from the outer end of the three-dimensional fabric toward the center.

63. The humidification device according to claim 62, wherein, The edge-sealing fabric is provided with liquid guiding holes, which are connected along the first direction or the second direction. The liquid guiding holes are used to guide liquid outside the edge-sealing fabric to the three-dimensional fabric.

64. The humidification device according to claim 63, wherein, The edge-sealing fabric includes: The first edge sealing portion extends along the first direction; The second edge sealing portion extends along the second direction; The liquid guiding holes are multiple, and the multiple liquid guiding holes are respectively located in the first sealing part and the second sealing part.

65. The humidification device according to claim 63, wherein, The shape of the liquid guiding hole includes a circle or a polygon, wherein the diameter of the circle or the longest diagonal of the polygon is less than or equal to 5 mm.

66. The humidification device according to claim 62, wherein, The edge-sealing fabric covers the three-dimensional fabric by a length of 1 cm to 3 cm in the second direction.

67. The humidifying device according to claim 64, wherein, The distance between the two end faces of the three-dimensional fabric along the first direction is H2, and the thickness of the first edge sealing portion and the second edge sealing portion is H3, where H3≤0.2H2 and / or H3≤2mm.

68. The humidification device according to claim 61, wherein, The edge-sealing fabric has a multi-layer structure, comprising a first fabric and a second fabric stacked together, with the first fabric covering the outside of the second fabric.

69. The humidification device according to claim 68, wherein, The edge-sealing fabric also includes: A first connecting fiber, the two ends of which are respectively connected to the first fabric and the second fabric.

70. The humidifying device according to claim 68, wherein, The first fabric has a first through hole, and the second fabric has a second through hole. The shapes of the first through hole and the second through hole include circles or polygons. The diameter or longest diagonal length of the first through hole is D3, and the diameter or longest diagonal length of the second through hole is D4, where D3 ≥ D4.

71. The humidifying device according to claim 61, wherein, The number of three-dimensional fabrics is multiple, and the multiple three-dimensional fabrics are stacked on top of each other, with the edge sealing fabric covering the ends of the multiple three-dimensional fabrics.

72. The humidifying device according to any one of claims 61 to 71, wherein, The three-dimensional fabric includes: A first substrate, wherein the first substrate is provided with a first vent hole; The second substrate is disposed at a distance from the first substrate along the first direction, and the second substrate is provided with a second vent hole; The second connecting fiber connects the first substrate and the second substrate respectively.

73. The humidification device according to claim 61, wherein, The humidification device also includes: A fan assembly, wherein the fan assembly is disposed opposite to the wettable substrate.

74. A method in which, include: A synthetic fiber wet curtain white fabric, an antibacterial agent, and a dye are mixed in water. The pH of the resulting aqueous solution is adjusted to 3-8, and the solution is kept at a high temperature of 125-145℃ to obtain an antibacterial colored wet curtain. The antibacterial agent is covalently bonded to the synthetic fiber wet curtain white fabric fibers to obtain a wettable substrate.

75. A method in which, include: Three-dimensional mesh white fabric, antibacterial agent and dye are mixed in water, the pH value of the aqueous solution is adjusted to 3-8, and the mixture is kept at a high temperature of 125-145℃ to obtain an antibacterial colored three-dimensional mesh fabric for making a substrate that can be wetted. The three-dimensional mesh white fabric fiber is made of one or more of polyester, polyvinyl alcohol, polyamide, and polyacrylonitrile; the antibacterial agent is covalently bonded to the three-dimensional mesh white fabric fiber.

76. The method according to claim 75, wherein, The three-dimensional mesh white fabric is made of synthetic fibers through three-dimensional knitting; the thickness of the three-dimensional mesh white fabric is 2-10mm, and the weight is 100-900g / m². 2 The water absorption ratio is 1.8-2.

8.

77. The method according to claim 76, wherein, The three-dimensional mesh white fabric structure includes: a first surface layer, a second surface layer, and an intermediate filament layer that passes through and connects the two respectively; both the first surface layer and the second surface layer have openings.

78. The method according to claim 76, wherein, The synthetic fibers of the three-dimensional mesh white fabric have irregular cross-sections and fiber specifications ranging from 0.8D to 300D.

79. The method according to claim 75, wherein, The antibacterial agent is an organozinc-based antibacterial agent, and it is in liquid form.

80. The method according to claim 79, wherein, The antibacterial agent accounts for 0.1-3% of the weight of the three-dimensional mesh white fabric.

81. The method according to any one of claims 75-80, wherein, The dye is a disperse dye or an acid dye; the weight ratio of the dye to the three-dimensional mesh white fabric is 2-8%.

82. The method according to claim 81, wherein, The heat preservation treatment is carried out in a closed device at a temperature of 130-140℃ for 20-60 minutes; after washing and drying, an antibacterial colored three-dimensional mesh fabric is obtained.

83. A humidifying device, wherein, The humidification device includes a wettable substrate, which is made of an antibacterial colored three-dimensional mesh fabric obtained by any one of claims 75-82, which is then sewn together after being stacked in 2 to 8 layers.

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