A humidifying structure, a humidifying filter element and a humidifier

Abstract

The humidifying structure, the humidifying filter element and the humidifier provided by the embodiments of the present application relate to the technical field of humidifiers, and the humidifying structure comprises: a hydrophilic layer made of a hydrophilic material; a hydrophobic layer arranged on one side of the hydrophilic layer; and a filter layer arranged on the side of the hydrophobic layer away from the hydrophilic layer. In the embodiments of the present application, the filter layer is arranged on the side of the windward surface of the hydrophilic layer. During humidification, the airflow passes through the filter layer and the hydrophobic layer in sequence, and then passes through the hydrophilic layer, and the moisture in the hydrophilic layer is brought into the air to realize humidification. The filter layer can filter dust particles in the airflow, and can reduce the situation that the dust particles in the airflow directly contact the hydrophilic layer, thereby reducing the probability that the dust particles in the airflow pollute the water quality of the humidification. Meanwhile, the filter layer and the humidifying layer are arranged with the hydrophobic layer, the hydrophobic layer can play a role of physical separation, and can reduce the flow of water in the hydrophilic layer to the filter layer, thereby helping to ensure the filtering performance of the filter layer and the passing performance of the airflow.

Description

Technical Field

[0001] This application relates to the field of humidifier technology, and in particular to a humidification structure, a humidification filter element, and a humidifier. Background Technology

[0002] In related technologies, air humidifiers are common household appliances used to regulate indoor air humidity, improve human respiratory health, and enhance the comfort of the living environment. Common humidification methods in household air humidifiers include ultrasonic humidification and cold evaporation humidification. Humidifiers using cold evaporation humidification have a built-in water-absorbing filter. A water pump or natural suction moistens the filter, and then airflow from a fan carries the moisture from the filter's surface into the air, thus humidifying the environment. However, after a period of use, the surface of the humidification filter is usually covered with a large amount of dust, oil, and other particulate matter, leading to a decrease in humidification performance. Furthermore, these particles can contaminate the humidification water and water tank, increasing the frequency of cleaning and reducing the user experience.

[0003] To address this, an all-in-one air purifier and humidifier has emerged on the market. This combines two separate modules—an air purification filter and a humidifier filter—into one device, achieving the effect of first removing dust and purifying the air, and then humidifying it. However, because this method involves stacking separate air purification and humidifier filters together, these all-in-one purifiers suffer from issues such as larger space requirements, higher overall air resistance, and increased motor power consumption. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a humidification structure, a humidification filter element, and a humidifier, which can reduce the contamination of the humidification structure by dust particles and at the same time facilitate the reduction of the volume of the humidification structure.

[0005] An embodiment of the first aspect of this application provides a humidification structure, including:

[0006] A hydrophilic layer, said hydrophilic layer being made of a hydrophilic material;

[0007] A hydrophobic layer is disposed on one side of the hydrophilic layer;

[0008] A filter layer is disposed on the side of the hydrophobic layer away from the hydrophilic layer.

[0009] Furthermore, the hydrophilic layer, the hydrophobic layer, and the filter layer are stacked sequentially.

[0010] Furthermore, the hydrophilic layer, the hydrophobic layer, and the filter layer are an integral structure, which is formed by combining the hydrophilic layer, the hydrophobic layer, and the filter layer through a composite process.

[0011] Furthermore, the integrated structure is formed by combining the hydrophilic layer, the hydrophobic layer, and the filter layer through a hot-pressing composite process, an ultrasonic process, or an adhesive material.

[0012] Furthermore, the hydrophilic layer has multiple mesh-like structures.

[0013] Furthermore, the diameter of the mesh is 1~6mm and / or the area of ​​a single mesh is 0.8~30mm².

[0014] Furthermore, the diameter of the mesh is 2-4 mm and / or the area of ​​a single mesh is 3-10 mm².

[0015] Furthermore, the hydrophilic layer is made of spunlace nonwoven fabric.

[0016] Furthermore, the surface of the spunlace nonwoven fabric is provided with an antibacterial coating.

[0017] Furthermore, the hydrophobic layer is made of PE / PP bicomponent spunbond nonwoven fabric, PP spunbond nonwoven fabric, or PP electrostatic aggregate.

[0018] Furthermore, the fiber diameter of the hydrophobic layer is less than 50 μm.

[0019] Furthermore, the fiber diameter of the hydrophobic layer is 10~30μm.

[0020] Furthermore, the filter layer is made of polypropylene meltblown nonwoven fabric.

[0021] Furthermore, the humidification structure includes a sealing layer that at least covers the joint between the hydrophilic layer and the hydrophobic layer, and at least covers the joint between the hydrophobic layer and the filter layer.

[0022] Furthermore, the sealing layer includes PET nonwoven fabric and an adhesive material, wherein the PET nonwoven fabric is sealed to the hydrophilic layer, the hydrophobic layer and the filter layer through the adhesive material.

[0023] An embodiment of the second aspect of this application provides a humidifying filter element, including the humidifying structure as described above.

[0024] Furthermore, the humidification structure extends in a zigzag shape.

[0025] Furthermore, the humidification structure is connected end to end to form a cylindrical structure.

[0026] An embodiment of the third aspect of this application provides a humidifier including the humidifying filter element as described above.

[0027] Furthermore, the humidifier includes a water distribution component, the water outlet direction of which faces the hydrophilic layer of the humidification structure.

[0028] Furthermore, the water distribution component is a water distribution plate, which includes a drainage structure. The drainage structure is provided with a water guide groove and a water outlet connected to the water guide groove. The water outlet is disposed opposite to the side of the hydrophilic layer away from the hydrophobic layer, and the extension direction of the water outlet is set at an angle to the vertical direction, wherein the angle is greater than zero.

[0029] Furthermore, the water guide channel includes a first bottom wall and a first side wall, the water outlet is disposed on the first side wall, and the distance between the water outlet and the first bottom wall is H, satisfying: H > 0.

[0030] Furthermore, the drainage structure is arranged in a ring, and there are multiple water outlet holes, which are spaced apart along the circumference of the drainage structure.

[0031] Furthermore, the diameter of the water outlet hole is 0.2mm to 4mm.

[0032] Furthermore, the water distribution plate includes a water distribution plate body, which is connected to the upper end of the drainage structure. The water distribution plate body is provided with a water inlet and a water storage cavity. The water inlet is in fluid communication with the water storage cavity, and the water storage cavity is in fluid communication with the water guide channel.

[0033] Furthermore, the bottom wall of the water storage cavity and the first side wall of the water guide channel have a curved transition.

[0034] Furthermore, the water distribution plate includes a baffle plate disposed within the water storage cavity, and the baffle plate is located on the side of the water inlet away from the water guide channel.

[0035] Furthermore, the water distribution plate body is provided with at least one air hole, and the opening of the air hole is located on the bottom wall of the water storage cavity.

[0036] Furthermore, the air vents and the water inlet holes are staggered in the circumferential direction of the drainage structure.

[0037] Furthermore, it also includes a limiting plate located on one side of the drain structure. The limiting plate and the drain structure define an installation cavity for at least partially accommodating the humidifying filter element, wherein the water outlet is located on the side of the drain structure near the installation cavity.

[0038] As can be seen from the above technical solutions, the embodiments of this application have at least the following beneficial effects:

[0039] In the humidification structure, humidification filter element, and humidifier provided in this application embodiment, the filter layer is disposed on the windward side of the hydrophilic layer. During humidification, the airflow passes through the filter layer and the hydrophobic layer successively, and then through the hydrophilic layer, carrying the moisture in the hydrophilic layer into the air to achieve humidification. The filter layer can filter dust particles in the airflow, reducing the direct contact between dust particles and the hydrophilic layer, thus reducing the probability of dust particles contaminating the humidified water and the water tank. Simultaneously, a hydrophobic layer is disposed between the filter layer and the humidification layer. The hydrophobic layer acts as a physical separator between the liquids, reducing the amount of water flowing from the hydrophilic layer to the filter layer, helping to ensure the filtration performance of the filter layer and the airflow permeability, thereby ensuring the humidification effect. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of a humidification structure provided in one embodiment of this application;

[0042] Figure 2 This is another schematic diagram of the humidification structure provided in one embodiment of this application;

[0043] Figure 3 This is a schematic diagram of the water distribution plate in a humidifier provided in one embodiment of this application;

[0044] Figure 4 This is a schematic diagram of the water distribution plate in a humidifier provided in one embodiment of the present application from another perspective;

[0045] Figure 5 This is a top view of the water distribution plate in a humidifier provided in one embodiment of this application;

[0046] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure at position AA in the middle;

[0047] Figure 7 for Figure 6 A partially enlarged structural diagram of section B;

[0048] Figure 8 This is an exploded structural diagram of the water distribution tray, humidification filter element, and water receiving tray in a humidifier provided in one embodiment of this application.

[0049] Figure label:

[0050] 100. Humidifying filter element; 110. Hydrophilic layer; 120. Hydrophobic layer; 130. Filter layer;

[0051] 200. Water distribution plate; 210. Drainage structure; 211. Water outlet; 212. Air vent; 213. Water guide channel; 214. First side wall; 215. First bottom wall; 220. Water distribution plate body; 221. Water inlet; 222. Water storage cavity; 223. Connecting surface; 230. Limiting plate; 240. Mounting cavity; 250. Baffle;

[0052] 300. Water tray. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In cold evaporative humidifiers, a built-in water-absorbing humidifying filter is used. The filter is moistened, and then airflow from a fan carries the moisture from its surface into the air, thus humidifying the environment. However, after a period of use, the filter surface typically becomes covered with a large amount of dust, oil, and other particulate matter, leading to a decrease in humidification performance. Furthermore, these particles can contaminate the humidifying water and the water tank, increasing the frequency of cleaning and reducing the user experience.

[0055] To address this, an all-in-one air purifier and humidifier has emerged on the market. This combines two separate modules—an air purification filter and a humidifier filter—into one device, achieving the effect of first removing dust and purifying the air, and then humidifying it. However, this type of all-in-one unit suffers from issues such as larger space occupation, higher overall air resistance, and increased motor power consumption.

[0056] In view of this, embodiments of this application propose a humidification structure, a humidification filter element 100, and a humidifier to effectively solve the aforementioned problems.

[0057] See Figure 1 As shown, an embodiment of the first aspect of this application discloses a humidification structure. Figure 1This can be understood as a cross-sectional view of the humidification structure in its thickness direction. By sequentially setting a filter layer 130, a hydrophobic layer 120, and a hydrophilic layer 110, and placing the filter layer 130 on the windward side of the hydrophilic layer 110, when the air is humidified, the airflow passes through the filter layer 130 and the hydrophobic layer 120 to achieve air cleaning and filtration, and then passes through the hydrophilic layer 110, carrying the moisture in the hydrophilic layer 110 into the air, thereby achieving humidification.

[0058] The filter layer 130 filters dust particles in the airflow, reducing direct contact between these particles and the hydrophilic layer 110. This helps lower the probability of dust particles contaminating the humidified water and the water tank. Simultaneously, a hydrophobic layer 120 is provided between the filter layer 130 and the humidification layer. The hydrophobic layer 120 acts as a physical separator, reducing the flow of water from the hydrophilic layer 110 into the filter layer 130 and preventing contamination. This reduces the risk of decreased filtration performance or shortened lifespan for the filter layer 130. In other words, it helps maintain the filtration performance of the filter layer 130 and the airflow permeability, thus ensuring the humidification effect of the humidification structure.

[0059] The following will combine Figure 1 and Figure 2 The humidification structure disclosed in the first aspect of this application will be specifically explained and described.

[0060] like Figure 1 and Figure 2 As shown, an embodiment of the first aspect of this application discloses a humidification structure, including a hydrophilic layer 110, a hydrophobic layer 120, and a filter layer 130. The hydrophilic layer 110 is made of a hydrophilic material and has water absorption properties; the hydrophobic layer 120 is disposed on one side of the hydrophilic layer 110 and has hydrophobic properties; the filter layer 130 is disposed on the side of the hydrophobic layer 120 away from the hydrophilic layer 110, and is capable of filtering the airflow passing through the filter layer 130, filtering out particulate matter such as dust and fumes in the airflow.

[0061] It is understood that any two adjacent layers of the hydrophilic layer 110, hydrophobic layer 120, and filter layer 130 can be stacked or spaced apart, and this is not limited here. In some embodiments, the hydrophilic layer 110 and the hydrophobic layer 120 are spaced apart, and the hydrophobic layer 120 and the filter layer 130 are spaced apart. The filter layer 130 can filter dust particles in the airflow. At the same time, since there is a gap between the filter layer 130 and the hydrophobic layer 120, the airflow resistance through the filter layer 130 can be reduced. The gaps between the hydrophobic layer 120 and the filter layer 130, as well as between the hydrophilic layer 110 and the hydrophilic layer 110, can reduce the amount of water in the hydrophilic layer 110 flowing into the hydrophobic layer 120, and can also reduce the airflow resistance.

[0062] In some embodiments, the filter layer 130 and the hydrophobic layer 120 are spaced apart, and the hydrophobic layer 120 and the hydrophilic layer 110 are stacked. That is, there are gaps between the filter layer 130 and both the hydrophobic layer 120 and the hydrophilic layer 110, which can prevent water in the hydrophilic layer 110 from flowing to the filter layer 130, and at the same time reduce the air resistance when the air flows through the filter layer 130.

[0063] In addition, in the above embodiments, the hydrophobic layer 120 is close to the hydrophilic layer 110 and is located on the windward side of the hydrophilic layer 110. Since the hydrophobic layer 120 is hydrophobic, the water in the hydrophilic layer 110 can be concentrated on the leeward side of the hydrophilic layer 110, which is beneficial to improving the humidification efficiency.

[0064] In some embodiments, see Figure 1 and Figure 2 The hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130 are stacked sequentially. That is, at least a portion or the entirety of the hydrophilic layer 110 is in contact with the hydrophobic layer 120; and at least a portion or the entirety of the hydrophobic layer 120 is in contact with the filter layer 130. This helps to effectively reduce the volume of the humidification structure. Because the hydrophobic layer 120 is hydrophobic, when water to be humidified flows to the hydrophilic layer 110 and comes into contact with the hydrophobic layer 120, the hydrophobicity of the hydrophobic layer 120 can cause the water in the hydrophilic layer 110 to concentrate on the leeward side of the hydrophilic layer 110 or to diffuse to other locations, thus improving the humidification effect.

[0065] It is worth mentioning that the hydrophilic layer 110 and the hydrophobic layer 120 can be directly connected, meaning that no other components or materials are provided between the hydrophilic layer 110 and the hydrophobic layer 120; of course, the hydrophilic layer 110 and the hydrophobic layer 120 can also be indirectly connected, meaning that the two are connected by an adhesive material such as glue. Similarly, the hydrophobic layer 120 and the filter layer 130 can be directly or indirectly connected.

[0066] In some embodiments, the hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130 are an integral structure, formed by composite processes. This achieves an integrated appearance by stacking the three structures, facilitating storage and various applications.

[0067] In some possible implementations, the integral structure is formed by combining a hydrophilic layer 110, a hydrophobic layer 120, and a filter layer 130 through a hot-pressing composite process or an ultrasonic process.

[0068] In some possible implementations, the integral structure is formed by bonding a hydrophilic layer 110, a hydrophobic layer 120, and a filter layer 130 together with an adhesive material (such as glue).

[0069] In some embodiments, the hydrophilic layer 110 has multiple pores that allow water molecules to pass through.

[0070] Furthermore, the diameter of the mesh is 1~6mm and / or the area of ​​a single mesh is 0.8~30mm².

[0071] In practical applications, when the mesh is round, the diameter of the mesh can be selected as 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, or other apertures as needed. When the outline of the mesh is irregular, such as elliptical or polygonal, the area of ​​a single mesh can be selected as 0.8mm², 1mm², 5mm², 10mm², 15mm², 20mm², 25mm², 30mm², or other areas.

[0072] In some embodiments, the diameter of the mesh is selected to be 2-4 mm and / or the area of ​​a single mesh is 3-10 mm². While ensuring the wetting effect of the hydrophilic layer 110, it helps to reduce airflow resistance, thereby ensuring the humidification effect.

[0073] In some embodiments, the hydrophilic layer 110 is made of spunlace nonwoven fabric.

[0074] In some embodiments, the surface of the spunlace nonwoven fabric is provided with an antibacterial coating. By providing an antibacterial coating, the antibacterial properties and anti-mildew effects of the spunlace nonwoven fabric can be improved, thereby reducing the probability of the spunlace nonwoven fabric becoming contaminated.

[0075] The antibacterial coating is formed by an antibacterial agent. In practical applications, an antibacterial agent is coated on the outer surface of the spunlace nonwoven fabric to form an antibacterial coating, thereby improving the antibacterial and anti-mildew properties of the spunlace nonwoven fabric and reducing the probability of contamination.

[0076] In some applications, in order for the humidification structure to maintain a relatively fixed shape, it is required that the humidification structure have a certain degree of rigidity and stiffness.

[0077] In one embodiment, the spunlace nonwoven fabric is a hardened spunlace nonwoven fabric. The hardened spunlace nonwoven fabric has a certain degree of hardness and stiffness, which can provide some support for the hydrophobic layer 120 and the filter layer 130, thereby allowing the humidification structure to maintain a relatively fixed shape.

[0078] In one possible implementation, when hardening the spunlace nonwoven fabric, an adhesive is applied to the outer surface of the spunlace nonwoven fabric and dried to obtain a hardened spunlace nonwoven fabric.

[0079] In other embodiments, the hydrophobic layer 120 can also be hardened, or the humidification structure can be fixed by mounting brackets, which can also keep the humidification structure in a relatively fixed shape.

[0080] It is understandable that, compared to the solution of maintaining a fixed shape of the humidification structure by installing brackets, hardening the hydrophilic layer 110 or the hydrophobic layer 120 can improve the overall rigidity of the humidification structure without the need for other supporting structures for stability, effectively reducing the volume of the humidification structure and facilitating the miniaturization of the humidification structure design.

[0081] In the embodiments of this application, the hydrophobic layer 120 is intended to physically separate the liquid and reduce the flow of water in the hydrophilic layer 110 and its contact with the filter layer 130, thereby preventing contamination of the filter layer 130.

[0082] In some embodiments, the hydrophobic layer 120 is made of a PE (polyethylene) / PP (polypropylene) bicomponent spunbond nonwoven fabric.

[0083] In some embodiments, the hydrophobic layer 120 is made of PP spunbond nonwoven fabric.

[0084] In some embodiments, the hydrophobic layer 120 is made of PP electrostatic aggregate.

[0085] Furthermore, the fiber diameter of the hydrophobic layer 120 is less than 50 μm. This ensures the hydrophobic effect of the hydrophobic layer 120.

[0086] In this embodiment, the hydrophobic layer 120 is made of a PE (polyethylene) / PP (polypropylene) bicomponent spunbond nonwoven fabric, and the fiber diameter of the hydrophobic layer 120 is less than 50μm. This ensures the hydrophobic effect of the hydrophobic layer 120.

[0087] It's understandable that the smaller the fiber diameter of nonwoven fabric, the smaller the pores between the fibers, and the greater the resistance to airflow.

[0088] Therefore, in order to balance the hydrophobicity and airflow permeability of the hydrophobic layer 120, in some embodiments, the fiber diameter of the hydrophobic layer 120 is set to 10~30μm.

[0089] In practical applications, the fiber diameter of the hydrophobic layer 120 can be set to 15μm, 20μm, 25μm or other sizes as needed.

[0090] In some embodiments, the filter layer 130 is made of polypropylene meltblown nonwoven fabric.

[0091] In one possible implementation, the filter layer 130 comprises PP (polypropylene) meltblown nonwoven fabric with a basis weight of 15~40 g / m², a filtration efficiency of 50~99.995% for particles with a diameter of 0.3 micrometers, and a resistance of 2~50 Pa.

[0092] In some embodiments, the humidification structure includes a sealing layer that covers at least the joint between the hydrophilic layer 110 and the hydrophobic layer 120, and at least the joint between the hydrophobic layer 120 and the filter layer 130. The sealing layer seals the joint between the hydrophilic layer 110 and the hydrophobic layer 120. Similarly, the sealing layer seals the joint between the filter layer 130 and the hydrophobic layer 120. By providing the sealing layer, the sides of the humidification structure can be effectively sealed, ensuring the overall structural integrity of the humidification structure, preventing air leakage from the sides, and guaranteeing the overall filtration and humidification effect of the humidification structure.

[0093] In one possible implementation, a sealing layer covers the edges of the hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130, with one side of the sealing layer sealingly connected to the surface of the hydrophilic layer 110 away from the hydrophobic layer 120, and the other side sealingly connected to the surface of the filter layer 130 away from the hydrophobic layer 120. In this way, the edges of the hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130 can be completely sealed by the sealing layer.

[0094] In another possible implementation, the sealing layer can be adhered only to the side seam between the hydrophilic layer 110 and the hydrophobic layer 120 to seal the seam between them. Similarly, the sealing layer can be provided only at the side seam between the filter layer 130 and the hydrophobic layer 120 to seal the seam between them. In this way, while achieving a seal, the material of the sealing layer is effectively saved, thus significantly reducing material costs.

[0095] Furthermore, the sealing layer includes a PET nonwoven fabric and an adhesive material, wherein the PET nonwoven fabric is sealed to the hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130 via the adhesive material. The adhesive material is used to connect and fix the PET nonwoven fabric to one or more of the hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130 to achieve a seal.

[0096] In practical applications, the bonding material can be hot melt adhesive or other adhesives.

[0097] Additionally, it should be noted that in the embodiments of this application, the hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130 can each be a layered structure with a certain thickness or a very thin layered structure. Based on different material and performance requirements, the thicknesses of the hydrophilic layer 110, the hydrophobic layer 120, and the filter layer 130 can be modified accordingly, and this application does not impose any limitations on them.

[0098] The humidification structure, humidification filter 100, and humidifier disclosed in this application are described in detail below with reference to a specific embodiment. It is worth understanding that the following embodiment is merely an exemplary description.

[0099] See Figure 1 and Figure 2 The humidification structure includes a filter layer 130, a hydrophobic layer 120, a hydrophilic layer 110, and a sealing layer. The three breathable materials, filter layer 130, hydrophobic layer 120, and hydrophilic layer 110, are stacked in sequence and fused together into a single structure by an ultrasonic composite process. The sealing layer is fixed to the side of the single structure by hot melt adhesive and is used to seal the joints between the sides of filter layer 130, hydrophobic layer 120, and hydrophilic layer 110.

[0100] The humidifying structure is folded to form a zigzag shape. The filter layer 130 is located on the outer side of the integrated structure (i.e., the windward side). Several continuous or discontinuous adhesive lines are arranged on the filter layer 130 to separate the humidifying structure. Specifically, the filter layer 130 is made of PP (polypropylene) meltblown nonwoven fabric with a basis weight of 15~40 g / m², capable of filtering particles as small as 0.3 microns with a filtration efficiency of 50~99.995% and an airflow resistance of 2~50 Pa. The hydrophobic layer 120 is located in the middle of the humidifying structure. The hydrophobic layer 120 is made of PE / PP bicomponent spunbond nonwoven fabric with a basis weight of 20~50 g / m² and an airflow resistance of 0.2~12 Pa. The hydrophilic layer 110 is located in the humidifying... Inside the structure, the hydrophilic layer 110 is a hardened spunlace nonwoven fabric with an antibacterial coating on the fiber surface. The total basis weight of the spunlace nonwoven fabric is 70~130g / ㎡, and the diameter of a single mesh is 1~6mm, or the area of ​​a single mesh is 0.8~30mm². The sealing layer is located at both ends of the humidification structure and is composed of an airtight PET nonwoven fabric coated with hot melt adhesive. The basis weight of the airtight PET nonwoven fabric is 100~240g / ㎡.

[0101] refer to Figure 8 As shown, during assembly, the folded humidifying structure forms a cylindrical structure, with the filter layer 130 located on the outside of the cylindrical structure, i.e., on the windward side of the humidifying structure. During humidification, the hydrophilic layer 110 is moistened with water. External airflow passes through the filter layer 130, the hydrophobic layer 120, and the hydrophilic layer 110 in sequence, carrying the moisture on the hydrophilic layer 110 into the air, thereby achieving humidification.

[0102] This embodiment has at least the following technical effects:

[0103] 1. Significantly saves internal space in the humidifier, making the entire unit smaller and more compact. The cylindrical integrated design of the humidifying filter 100 integrates dust removal, filtration, and humidification functions. The filter layer 110 removes PM2.5, pollen, and dust particles; the hydrophobic layer 120, with its hydrophobic and breathable properties, physically isolates the filter layer 110 from the hydrophilic layer 110, preventing water from the hydrophilic layer 110 from seeping back into the filter layer 130, while ensuring efficient air permeability and maintaining the high-efficiency filtration performance of the filter layer 130; the hydrophilic layer is absorbent, allowing it to contact purified, dry air to achieve isenthalpic evaporative humidification; the sealing layers at both ends effectively seal the sides of the humidifying filter 100, ensuring the overall airtightness of the humidifying filter 100 and preventing any possibility of air leakage from the sides.

[0104] 2. Effectively reduces the total air resistance of the humidifier filter element 100, improving the energy efficiency ratio of the equipment. The cylindrical single filter element design shortens the air duct length, making airflow smoother and avoiding the accumulation of air resistance. The adhesive lines on the filter layer evenly separate and fix the humidification structure, helping to maintain a low and stable air resistance, and overall reducing the fan power requirement and operating noise.

[0105] The second aspect of this application discloses a humidifying filter element 100, which includes the humidifying structure as described above and has all the technical effects of the aforementioned humidifying structure, which will not be repeated here.

[0106] In practical applications, the humidification structure can be arranged in a flat, wavy, sawtooth, or zigzag pattern as needed.

[0107] In some embodiments, the humidification structure extends in a zigzag or sawtooth shape. This increases the area of ​​the humidification structure within a unit space, thereby improving humidification efficiency.

[0108] Furthermore, the humidification structure is connected end to end to form a cylindrical structure. The cylindrical single filter design shortens the air duct length, making airflow smoother and avoiding the accumulation of wind resistance, thus helping to reduce wind resistance.

[0109] In one possible implementation, the filter layer 130 is provided with adhesive lines to evenly separate and fix the serrated humidification structure, which helps to maintain low and stable air resistance and reduce overall fan power requirements and operating noise.

[0110] The above is a detailed description of the humidification structure and the humidification filter element 100.

[0111] The water supply structure and working principle of the humidifier will be explained in detail below.

[0112] The third aspect of this application discloses a humidifier, including the humidifying filter element 100 as described above, which has all the technical effects of the aforementioned humidifying filter element 100, and will not be repeated here.

[0113] Existing humidifiers typically include a water distribution tray and a humidifying filter. The water distribution tray is positioned above the humidifying filter, and a drain hole is located on the tray corresponding to the position of the filter. Water in the tray flows through the drain hole to the top of the filter, and then permeates to other parts of the filter. However, this type of water distribution tray requires the humidifying filter to have a large cross-sectional area; otherwise, the water flowing out of the drain hole may bypass the filter and drip directly into the collection tray, resulting in a decrease in humidification efficiency.

[0114] Based on this, in some embodiments of this application, see [reference] Figures 3 to 7 The humidifier includes a water distribution component, with its outlet facing the hydrophilic layer 130 of the humidification structure. This allows water from the distribution component to flow towards and wet the hydrophilic layer 130. Because the water outlet faces the hydrophilic layer 130, the likelihood of water dripping directly from the distribution component without passing through the humidification structure is reduced, thus improving the humidification effect.

[0115] In some embodiments, the water distribution component is a water distribution plate 200, which includes a drainage structure 210. The drainage structure 210 is provided with a water guide groove 213 and a water outlet 211 connected to the water guide groove 213. The water outlet 211 is disposed opposite to the side of the hydrophilic layer 110 away from the hydrophobic layer 120, and the extension direction of the water outlet 211 is set at an angle to the vertical direction, with the angle being greater than zero.

[0116] in, Figure 3 , Figure 6 and Figure 7 In the diagram, the Z-direction indicates the vertical direction.

[0117] It is worth understanding that the angle between the extension direction of the water outlet 211 and the vertical direction is denoted as θ, which satisfies: 0 < θ < 180°. That is to say, the specific value of the angle θ can be selected as 30°, 45°, 90°, 120°, 150°, etc., as needed.

[0118] In the above embodiment, the drainage structure 210 is provided with a water guide groove 213 and a water outlet 211. The water guide groove 213 contains humidifying water, and the water outlet 211 is set at an angle to the vertical direction. In use, the humidifying filter element 100 is set on the extended side of the water outlet 211, and the water outlet 211 faces and is close to the hydrophilic layer 130 of the humidifying filter element 100. Since the water outlet 211 is set at an angle to the vertical direction, and the angle θ between the extension direction of the water outlet 211 and the vertical direction is greater than zero, the water in the water guide groove 213 flows out of the water outlet 211 and does not flow downward in the vertical direction, but flows out along the extension direction of the water outlet 211 and comes into contact with the humidifying filter element 100 located on one side of the water outlet 211. This reduces the situation where water drips directly without passing through the humidifying filter element 100, and facilitates full contact between the water and the humidifying filter element 100.

[0119] In the embodiments of this application, the water guide channel 213 is filled with humidifying water, so that the water outlet 211 has a certain potential energy. In this way, after the water flows out of the water outlet 211, the water can flow out in the form of a jet, which reduces the situation where the water leaks and drips along the outer wall of the drainage structure 210 after flowing out of the water outlet 211.

[0120] In one embodiment, see Figure 7 The water guide channel 213 includes a first side wall 214, and a water outlet 211 is disposed on the first side wall 214. After the water in the water guide channel 213 flows out from the water outlet 211 on the first side wall 214, it comes into contact with the humidifying filter element 100 disposed on one side of the water outlet 211.

[0121] Furthermore, the water guide channel 213 includes a first bottom wall 215 and a first side wall 214, and a water outlet 211 is disposed on the first side wall 214. The distance between the water outlet 211 and the bottom wall is H, which satisfies: H > 0.

[0122] In one possible application scenario, the first bottom wall 215 is set parallel to the horizontal plane, the first side wall 214 is set parallel to the vertical direction, and the axis of the water outlet 211 is perpendicular to the first side wall 214.

[0123] In one embodiment, see Figures 3 to 5 The drainage structure 210 is arranged in a ring, and there are multiple water outlets 211, which are spaced apart along the circumference of the drainage structure 210. Each water outlet 211 is in liquid communication with the water guide channel 213, and water in the water guide channel 213 can flow out from each water outlet 211.

[0124] It is worth mentioning that, see Figures 3 to 5 The central part of the annular drainage structure 210 is a hollow area, which can be used as an air outlet for humidified air or as an air inlet for humidified air, without limitation.

[0125] It is worth understanding that the specific shape of the drainage structure 210 can be set according to needs. For example, the overall shape of the drainage structure 210 can be a ring, or it can be a ring structure of other shapes.

[0126] In one embodiment, the diameter of the water outlet 211 is 0.2mm to 4mm. In practical applications, the diameter of the water outlet 211 can be set to 0.2mm, 0.5mm, 1mm, 1.5mm, 2mm, 3mm, 4mm or other values ​​as needed.

[0127] In one embodiment, see Figures 4 to 7 The water distribution plate 200 includes a water distribution plate body 220, which is connected to the upper end of the drainage structure 210. The water distribution plate body 220 is provided with a water inlet 221 and a water storage cavity 222. The water inlet 221 is in fluid communication with the water storage cavity 222, and the water storage cavity 222 is in fluid communication with the water guide channel 213.

[0128] Humidifying water can be supplied to the water storage chamber 222 through the water inlet 221. After entering the water storage chamber 222 through the water inlet 221, this water can flow into the water guide trough 213 and then flow out through the water outlet 211 onto the humidifying filter element 100.

[0129] In practical applications, the water storage chamber 222 is located above the water guide channel 213, and the water outlet 211 is located below the water storage chamber 222. That is to say, the water at the water outlet 211 has a certain potential energy, which allows the water to shoot a certain distance after flowing out of the water outlet 211, so as to come into contact with the humidifying filter element 100 located on one side of the water outlet 211. At the same time, it can reduce the situation where water drips down the outer wall of the drainage structure 210 after flowing out of the water outlet 211.

[0130] In one embodiment, see Figure 6 and Figure 7 The bottom wall of the water storage chamber 222 and the first side wall 214 of the water guide channel 213 are smoothly transitioned by a curved surface. Specifically, the bottom wall of the water storage chamber 222 and the first side wall 214 of the water guide channel 213 are connected by a connecting surface 223. The connecting surface 223 is an arc-shaped curved surface. This reduces the generation of air bubbles during the flow of water from the water storage chamber 222 to the water guide channel 213, which helps stabilize the water pressure at the water outlet 211. As a result, the water flowing out of the water outlet 211 can flow stably to the humidifying filter element 100, which helps ensure the stability of the water-humidifying filter element 100.

[0131] In one embodiment, see Figure 6 and Figure 7The water distribution plate 200 includes a baffle 250, which is disposed within the water storage chamber 222 and located on the side of the water inlet 221 away from the water guide channel 213. The baffle 250 can alter the actual volume of the water storage chamber 222, reducing its size. Thus, when the same volume of water flows into the water storage chamber 222, the liquid level within the chamber can be increased, thereby increasing the water pressure at the outlet 211 and facilitating water flow onto the humidifying filter element 100. Simultaneously, by installing the baffle 250 within the water storage chamber 222 and increasing the liquid level, the water pressure at the outlet 211 is stabilized, thereby maintaining stable water storage pressure.

[0132] It is worth mentioning that the water storage cavity 222 refers to the space that is connected to the water inlet 221 and the water guide channel 213. Setting a baffle 250 inside the water storage cavity 222 is equivalent to separating a new water storage cavity 222 from the original water storage cavity 222.

[0133] In one embodiment, see Figure 3 and Figure 4 The water distribution plate body 220 is provided with at least one air hole 212, and the opening of the air hole 212 is located on the bottom wall of the water storage cavity 222. The air hole 212 is connected to the outside, so that the pressure inside the water storage cavity 222 can be kept consistent with the external air pressure, which is conducive to the water in the water storage cavity 222 and the water guide channel 213 flowing out from the water outlet 211.

[0134] In one embodiment, see Figure 4 The air vent 212 and the water inlet 221 are staggered in the circumferential direction of the drainage structure 210. This prevents water from entering the water storage chamber 222 through the water inlet 221 and then flowing directly out through the air vent 212.

[0135] In one embodiment, see Figure 4 , Figure 6 and Figure 7 The water distribution plate 200 also includes a limiting plate 230, which is located on one side of the drain structure 210. The limiting plate 230 and the drain structure 210 define an installation cavity 240, which is used to at least partially accommodate the humidifying filter element 100. The water outlet 211 is located on the side of the drain structure 210 near the installation cavity 240. The limiting plate 230 can limit the humidifying filter element, reducing the possibility of changes in the relative position of the humidifying filter element 100 and the water distribution plate 200, ensuring that the water flowing from the water outlet 111 can flow stably onto the humidifying filter element 100, thereby guaranteeing the humidification effect.

[0136] In one embodiment, see Figure 8The humidifier includes a humidifying filter element 100, a water distribution plate 200, and a water receiving plate 300. The humidifying filter element 100 has a cylindrical structure, with a hydrophilic layer 110 located on the inner side of the cylindrical structure and a filter layer 130 located on the outer side of the cylindrical structure, i.e., the windward side. The upper end of the humidifying filter element 100 is housed within the mounting cavity 240 of the water distribution plate 200. The water outlet 111 faces the hydrophilic layer 110 of the humidifying filter element 100, ensuring that the water flowing from the water outlet 111 can stably flow onto the hydrophilic layer 110 of the humidifying filter element 100, thereby guaranteeing the humidification effect.

[0137] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 element 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.

[0138] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0139] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0140] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0141] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

Claims

1. A humidifying structure, characterized by, include: A hydrophilic layer, said hydrophilic layer being made of a hydrophilic material; A hydrophobic layer is disposed on one side of the hydrophilic layer; A filter layer is disposed on the side of the hydrophobic layer away from the hydrophilic layer.

2. The humidification structure of claim 1, wherein, The hydrophilic layer, the hydrophobic layer, and the filter layer are stacked sequentially.

3. The humidification structure of claim 2, wherein, The hydrophilic layer, the hydrophobic layer, and the filter layer are an integral structure, which is formed by combining the hydrophilic layer, the hydrophobic layer, and the filter layer through a composite process.

4. The humidification structure of claim 3, wherein, The integrated structure is formed by combining the hydrophilic layer, the hydrophobic layer, and the filter layer through a hot-pressing composite process, an ultrasonic process, or an adhesive material.

5. The humidification structure of any one of claims 1 to 4, wherein, The hydrophilic layer has multiple mesh-like openings.

6. The humidification structure of claim 5, wherein, The diameter of the mesh is 1 to 6 mm and / or the area of ​​a single mesh is 0.8 to 30 mm².

7. The humidification structure of claim 6, wherein, The diameter of the mesh is 2-4 mm and / or the area of ​​a single mesh is 3-10 mm².

8. The humidification structure of claim 5, wherein, The hydrophilic layer is made of spunlace nonwoven fabric.

9. The humidification structure of claim 8, wherein, The surface of the spunlace nonwoven fabric is provided with an antibacterial coating.

10. The humidification structure of any one of claims 1 to 4, wherein, The hydrophobic layer is made of PE / PP two-component spunbond nonwoven fabric, PP spunbond nonwoven fabric, or PP electrostatic aggregate.

11. The humidification structure of claim 10, wherein, The fiber diameter of the hydrophobic layer is less than 50 μm.

12. The humidification structure of claim 11, wherein, The hydrophobic layer has a fiber diameter of 10~30μm.

13. The humidification structure of claim 1, wherein, The filter layer is made of polypropylene meltblown nonwoven fabric.

14. The humidification structure of claim 1, wherein, The humidification structure includes a sealing layer that covers at least the joint between the hydrophilic layer and the hydrophobic layer, and at least the joint between the hydrophobic layer and the filter layer.

15. The humidification structure of claim 14, wherein, The sealing layer includes PET nonwoven fabric and adhesive material, and the PET nonwoven fabric is sealed to the hydrophilic layer, the hydrophobic layer and the filter layer through the adhesive material.

16. A humidifying filter element characterized by, Includes the humidification structure as described in any one of claims 1 to 15.

17. The humidification cartridge of claim 16, wherein, The humidification structure extends in a zigzag shape.

18. The humidification cartridge of claim 17, wherein, The humidification structures are connected end to end and form a cylindrical structure.

19. A humidifier comprising: Includes the humidifying filter element as described in any one of claims 16 to 18.

20. The humidifier of claim 19, wherein, The humidifier includes a water distribution component, the water outlet direction of which faces the hydrophilic layer of the humidification structure.

21. The humidifier of claim 20, wherein, The water distribution component is a water distribution plate, which includes a drainage structure. The drainage structure is provided with a water guide groove and a water outlet connected to the water guide groove. The water outlet is positioned opposite to the side of the hydrophilic layer away from the hydrophobic layer, and the extension direction of the water outlet forms an angle with the vertical direction, with the angle being greater than zero.

22. The humidifier of claim 21, wherein, The water guide channel includes a first bottom wall and a first side wall. The water outlet is disposed on the first side wall. The distance between the water outlet and the first bottom wall is H, which satisfies: H > 0.

23. The humidifier of claim 21 or 22, wherein, The drainage structure is arranged in a ring, and there are multiple water outlet holes, which are spaced apart along the circumference of the drainage structure.

24. The humidifier of claim 23, wherein, The diameter of the water outlet hole is 0.2mm to 4mm.

25. The humidifier of claim 21, wherein, The water distribution plate includes a water distribution plate body, which is connected to the upper end of the drainage structure. The water distribution plate body is provided with a water inlet and a water storage cavity. The water inlet is in fluid communication with the water storage cavity, and the water storage cavity is in fluid communication with the water guide channel.

26. The humidifier of claim 25, wherein, The bottom wall of the water storage cavity and the first side wall of the water guide channel have a curved transition.

27. The humidifier of claim 25, wherein, The water distribution plate includes a baffle plate, which is disposed in the water storage cavity and is located on the side of the water inlet away from the water guide channel.

28. The humidifier of claim 25, wherein, The water distribution plate body is provided with at least one air hole, and the opening of the air hole is located on the bottom wall of the water storage cavity.

29. The humidifier of claim 28, wherein, The air vents and the water inlet holes are staggered circumferentially on the drainage structure.

30. The humidifier of claim 21, wherein, It also includes a limiting plate located on one side of the drain structure. The limiting plate and the drain structure define an installation cavity for at least partially accommodating the humidifying filter element. The water outlet is located on the side of the drain structure near the installation cavity.

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