Humidification filter element of cold evaporation humidification device and cold evaporation humidification device

Abstract

The utility model provides a humidifying filter element of a cold evaporation humidifying device and the cold evaporation humidifying device, the humidifying filter element comprises a filter element body, the filter element body is formed by connecting radial edges at the two ends of a three-dimensional net structure braided fabric, and the tail end of the weft edge of the three-dimensional net structure braided fabric is sewed or pressed and shaped through hot melting. By shaping the weft edge, the lower end part of the filter element is not elongated and deformed; and the water in the filter element can be guided into the frame, gathers to the bottom of the frame and slowly flows to the lower water tank, so that continuous water dripping sound generated by direct water dripping is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to a humidifying filter element, in particular to a humidifying filter element of a cold evaporation humidifying device and the cold evaporation humidifying device. BACKGROUND

[0002] At present, the mainstream humidifying methods on the market are ultrasonic atomization humidification and cold evaporation humidification. The cold evaporation humidification is widely applied due to the more delicate, uniform water molecules and low energy consumption.

[0003] The polyester material has good water absorption, and is also easily taken away by air in air flow, and thus shows good humidifying performance and is used for the filter element of a humidifier. At present, the filter element using the material cannot well adapt to the frame in the manufacturing process due to the stretchability of the material, and the fixed size is not easy to control, and thus the use range is limited. SUMMARY

[0004] The application provides a humidifying filter element of a cold evaporation humidifying device and the cold evaporation humidifying device to solve the problems in the related art, and the technical scheme is as follows.

[0005] In a first aspect, the application provides a humidifying filter element of a cold evaporation humidifying device, which comprises a filter element body, the filter element body comprises a three-dimensional net structure woven fabric, the radial edges at both ends of the three-dimensional net structure woven fabric are connected, and the ends of the weft edges of the three-dimensional net structure woven fabric are stitched or hot melt pressure bonded and shaped.

[0006] In an embodiment, the three-dimensional net structure woven fabric is folded to form a double-layer structure, the two weft edges are overlapped after being folded and are fixed to each other.

[0007] In an embodiment, the three-dimensional net structure woven fabric has a surface layer, a three-dimensional layer and a bottom layer which are sequentially and layerwisely arranged along the thickness direction; the surface layer and the bottom layer are provided with uniformly arranged air permeable holes, the three-dimensional layer is composed of a plurality of silk threads which are uniformly arranged and perpendicular to the surface layer and the bottom layer, and the three-dimensional layer has a through hole along the thickness direction.

[0008] In an embodiment, the radial edges at both ends of the three-dimensional net structure woven fabric are connected to form a stitching line, and the radial edges are outwardly opened along the stitching line; the opening is hidden inside the filter element body after being folded.

[0009] In an embodiment, the total thickness between the surface layer and the bottom layer of the three-dimensional net structure woven fabric is 2-30 mm; and the grammage of the three-dimensional net structure woven fabric is 50-1000 g / m2.

[0010] In an embodiment, the material of the three-dimensional net structure woven fabric is polyester, nylon, polypropylene, or a combination of two or more of the above.

[0011] In an embodiment, the humidifying filter element further comprises a plastic frame, and the filter element body is wrapped on the plastic frame.

[0012] In an embodiment, the plastic frame comprises a circular ring-shaped upper end face, a circular ring-shaped lower end face, and a plurality of support rods; the inner edges of the circular upper end face and the circular lower end face are connected by the plurality of support rods; and the filter element body is wrapped on the support rods between the circular ring-shaped upper end face and the circular ring-shaped lower end face.

[0013] In an embodiment, the circular ring-shaped upper end face is provided with a plurality of small holes.

[0014] The second aspect provides a humidifying filter element of a cold evaporation humidifying device, which comprises the humidifying filter element of the cold evaporation humidifying device.

[0015] The humidifying filter element of the cold evaporation humidifying device comprises a filter element body and a plastic frame, wherein the filter element body is made of a three-dimensional net structure woven fabric, the weft edge of the three-dimensional net structure woven fabric is stitched or hot-melt pressed and shaped at the end thereof, and the filter element body has a shaped end portion and a length-invariant end face circumference.

[0016] The above summary is intended to illustrate the present application and is not intended to be limiting thereof. Further aspects, embodiments and features of the present application will be readily apparent from the following detailed description, taken in conjunction with the accompanying drawings and claims. BRIEF DESCRIPTION OF DRAWINGS

[0017] In the drawings, like reference numerals refer to same or similar components throughout the several views. These drawings are not necessarily to scale. It should be understood that these drawings are merely schematic representations, which are intended to provide a generalized illustration of the structures, components and elements, according to the present application, and should not be construed as limiting the scope of the application.

[0018] Figure 1 A perspective view of a humidifying filter element with a filter element body combined with a frame;

[0019] Figure 2 A perspective view of a humidifying filter element with a filter element body combined with a frame according to an embodiment of the present application;

[0020] Figure 3 This is a cross-sectional view of a humidifying filter element comprising a filter element body and a frame, according to another embodiment of this application.

[0021] Figure 4 This is a structural diagram of the three-dimensional mesh woven fabric used in this application;

[0022] Figure 5 This is a perspective view of the filter element body according to an embodiment of this application;

[0023] Figure 6 This is a perspective view of the filter element body according to another embodiment of this application;

[0024] Figure 7 This is a three-dimensional view of the framework of this application. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0026] In existing cold evaporation humidification devices, the humidification filter element is generally made of polyester material, which has good water absorption and is easily carried away by airflow, thus exhibiting good humidification performance. However, polyester material has elasticity in the weft direction. After shaping the polyester material, the weft direction will lengthen due to the material's elasticity, making it impossible to control a fixed size. Therefore, it cannot fit well with the frame. Figure 1 As shown, this causes the water inside the filter cartridge to flow downwards. When it reaches the weft edge, due to the mismatch between the weft edge and the frame, the water does not collect on the frame but drips directly, producing a loud dripping sound. To overcome this problem,

[0027] like Figures 2-4 As shown, this application embodiment provides a humidifying filter element for a cold evaporation humidification device, including a filter element body 1. The filter element body 1 includes a three-dimensional mesh structure woven fabric 101. The radial edges 102 at both ends of the three-dimensional mesh structure woven fabric 101 are connected to form a structure. The ends of the weft edges 103 of the three-dimensional mesh structure woven fabric 101 are shaped by sewing or hot-melt pressing.

[0028] The radial edge 102 and the weft edge 103 are based on the longitudinal and transverse directions of the three-dimensional mesh structure woven fabric 101. For example... Figure 4As shown, the three-dimensional net structure fabric 101 is a three-layer structure, including a surface layer, a three-dimensional layer, and a bottom layer; a cubic is formed, in which two radial edges 102 are edges on two faces in the radial direction at both ends of the cubic weft direction, and the weft direction edge 103 is an edge on two faces in the weft direction at both ends of the cubic radial direction. The surface layer and the bottom layer are uniformly arranged with air permeable holes, and the three-dimensional layer in the middle is composed of a plurality of silk lines perpendicular to the surface layer and the bottom layer and uniformly arranged to form a hole structure, which is a through hole in the thickness direction. The hole structure and the air permeable holes on the surface layer and the bottom layer are the same or different in shape, for example, but not limited to, the surface layer is a rhombus and the bottom layer is a circle / triangle. The size of the hole structure and the air permeable hole can be the same or different. For example, but not limited to, the air permeable hole spacing in the surface layer is 3mm, and the air permeable hole spacing in the bottom layer is 5mm. The surface layer, the three-dimensional layer, and the bottom layer form a three-dimensional structure with air permeability.

[0029] When the two radial edges 102 are connected, the three-dimensional net structure fabric forms a circular cylindrical body, and the weft direction edge 103 forms two circular faces of the circular cylindrical body. In this application, the ends of the weft direction edge 103 of the three-dimensional net structure fabric are fixed by sewing or hot melt pressing. Therefore, during the connection of the radial edges 102, the weft direction edge 103 will not be stretched and deformed because it has been fixed, so the length of the weft direction edge 103 will be fixed and will not change. After selecting the appropriate size of the three-dimensional net structure fabric 101 according to the size of the filter core, the length of the weft direction edge 103 of the filter core body 1, i.e. the diameter of the circular cylindrical body, will be the same as the designed diameter and will not change, and it can also be adapted to the frame 2.

[0030] The total thickness of the surface layer and the bottom layer of the three-dimensional net structure fabric 101, i.e. the thickness of the middle three-dimensional layer, is 2-30mm; under this thickness, it can be ensured that the filter core body 1 will not be severely deformed under a given wind speed, and there is enough moisture flow to wet, and the wind blowing through the filter core body 1 produces sufficient water vapor. The material of the three-dimensional net structure fabric 101 is one or a combination of two or more of polyester, nylon, polypropylene, and cotton fiber. The grammage of the three-dimensional net structure fabric 101 is 50-1000g / m2; the materials of polyester, nylon, polypropylene, and cotton fiber have good water absorption, and at the same time, they are also easy to be carried away by air in air flow, thus showing good humidifying performance.

[0031] In an embodiment of the present application, the filter core body 1 is a double-layer structure folded in half. It has a first folding part 104 and a second folding part 105 formed by folding and fixing the two weft direction edges 103. Further, the filter core body 1 is a multi-layer structure folded in half.

[0032] The stereoscopic net structure woven fabric 101 is connected by the radial edge 102 to form a circular column, the circular column is folded outward from one end, the circular column is folded in half from the middle, the first folded part 104 formed by the folding is one end of the filter core body 1, the weft edges 103 at both ends of the folded circular column are overlapped and fixed to form the second folded part 105 as the other end of the filter core body 1, and thus the filter core body 1 has a double-layer structure.

[0033] As shown in Figure 2 and Figure 5 , when the radial edges 102 at both ends of the stereoscopic net structure woven fabric 101 are connected, the two radial edges 102 are connected by sewing, and the sewing forms a sewing line. In this application, the two radial edges forming the inner circle of the circular ring are sewn, and the sewing line exists inside the filter core body 1, the two radial edges 102 on the outer circle form an outward opening along the sewing line, and the ends of the sewing line are the connecting heads 107; when the circular column is folded outward from one end and the circular column is folded in half from the middle, the two radial edges 102 and the outward opening formed thereby are completely hidden inside the filter core body 1, and the outer surface of the filter core body 1 is more regular.

[0034] As shown in Figure 6 , the weft edges 103 are fixed by the lock stitch machine to form the lock line 106, and the structure of the two connecting heads 107 fixed by the lock line 106 is shown in the local enlarged view. When the filter core body 1 is used, one end of the lock line 106 faces downward, and because the weft edges 103 are fixed by sewing or hot melting and pressing, they are also fixed by the lock line 106, so the length of the weft edges 103 does not elongate and is consistent with the initial design length, so it can still be adapted to the frame 2, and the water gathered downward can flow along the filter core body 1 to the edge of the weft edges 103 and contact the frame 2, and then flow into the water tank in the frame 2, thereby avoiding the water droplet sound defect of the machine.

[0035] The filter core further comprises a plastic frame 2, and the filter core body 1 is wrapped on the plastic frame 2. The plastic frame 2 belongs to a part of the humidifier and is a detachable component of the humidifier or a plastic part fixed inside the humidifier.

[0036] As shown in Figure 7 , the plastic frame 2 comprises a circular ring-shaped upper end face 201, a circular ring-shaped lower end face 202 and a plurality of support rods 203; the inner edges of the upper end face 201 and the lower end face 202 are connected by the plurality of support rods 203; and the filter core body 1 is wrapped on the support rods 203 between the upper end face 201 and the lower end face 202. The support rods 203 are arranged at intervals, and air flows through the space to carry away the moisture of the humidified filter core body 1, thereby increasing the humidity in the air. The plastic frame 2 serves to fix the filter core body 1.

[0037] The upper end face 201 of the plastic frame 1 is provided with small holes 204. Water can fall along the upper end face 201 to the filter core body 1 through the small holes 204 to wet the filter core body 1.

[0038] The plastic frame 2 can be detachable or integrally formed.

[0039] The hot melt bonding method of the application refers to one of ultrasonic process or electric heating bonding process; the sewing is sewing using a sewing process.

[0040] In an embodiment of the application, the humidifying filter core is prepared by hot melt bonding or sewing method, comprising the following steps:

[0041] S1, cutting the three-dimensional net-like warp-knitted fabric 101 into a sheet, the machine-weaving transverse direction is the weft edge 103, and the machine-weaving radial direction is the radial edge 102;

[0042] S2, using hot melt bonding or sewing method to shape the weft edge 103 of the fabric;

[0043] S3, aligning and overlapping the two radial edges 102 of the fabric, and then using hot melt bonding or sewing method to connect, forming a connecting head 107;

[0044] S4, turning one weft edge 103 of the fabric outward, so that the connecting head 107 formed in step S3 is inside the fabric;

[0045] S5, using hot melt bonding method to connect the two aligned weft edges 103, or using sewing method to connect; obtaining the filter core body 1.

[0046] Specific examples are not limited to: selecting a three-dimensional net-like warp-knitted fabric 101, the material is polyester, warp-knitted, the air holes are evenly distributed on the surface layer and the bottom layer, the thickness is 7mm, and the grammage is 500g / m 2 ; cutting the fabric into a mesh, the weft edge is 600mm, and the radial edge is 250mm; using ultrasonic process to bond and shape the weft edge 103, the size after shaping is 600mm; aligning and sewing the radial edges 102, then turning the material outward, and covering the opening formed by the radial edges 102 inside; sewing and connecting the aligned weft edges 103, the actual measured inner circumference length of the connection is 580-600mm; assembling into the plastic frame 2, the bottom of the filter core body 1 is well attached to the plastic frame 2; loading into the corresponding humidifier, turning on the humidifier, according to the standard test, the humidification amount is 700mL / h, and there is no water dripping sound in the humidification process.

[0047] Therefore, the weft direction edge 102 of the filter core body 1 is shaped, and the size of the edge of the lock wire 6 of the filter core body 1 is not elongated after the manufacturing process, so that the filter core body 1 can be tightly attached to the inner frame 2 of the humidifier, water flow is left from the upper part, and can be concentrated and gathered at the bottom of the frame, slowly flows to the lower water tank, and the water drop sound is avoided.

[0048] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0049] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0050] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A humidification cartridge for a cold-evaporative humidification device, characterized by, The filter core body comprises a three-dimensional net structure braid, and the radial edges at both ends of the three-dimensional net structure braid are connected, and the ends of the weft edges of the three-dimensional net structure braid are stitched or hot-melt pressed and shaped.

2. The humidifying filter core of the cold evaporation humidifying device according to claim 1, characterized in that, the three-dimensional net structure braid is folded to form a double-layer structure, and the two weft edges are overlapped after being folded and are fixed to each other.

3. The humidifying filter core of the cold evaporation humidifying device according to claim 1 or 2, characterized in that, the three-dimensional net structure braid has a surface layer, a three-dimensional layer and a bottom layer which are sequentially stacked along the thickness direction; the surface layer and the bottom layer are provided with uniformly arranged air permeable holes, the three-dimensional layer is composed of a plurality of wires which are uniformly arranged and perpendicular to the surface layer and the bottom layer, and the three-dimensional layer has a through hole along the thickness direction.

4. The humidifying filter core of the cold evaporation humidifying device according to claim 3, characterized in that, the radial edges at both ends of the three-dimensional net structure braid are connected to form a stitching line, and the radial edges are outwardly opened along the stitching line; the opening is hidden inside the filter core body after being folded.

5. The humidifying filter core of the cold evaporation humidifying device according to claim 3, characterized in that, the total thickness of the three-dimensional net structure braid is 2-30 mm; and the grammage of the three-dimensional net structure braid is 50-1000 g / m2.

6. The humidifying filter core of the cold evaporation humidifying device according to claim 3, characterized in that, the material of the three-dimensional net structure braid is one of polyester, polyamide, polypropylene and cotton fiber or a combination of two or more thereof.

7. The humidifying filter core of the cold evaporation humidifying device according to claim 1 or 2, characterized in that, the humidifying filter core further comprises a plastic frame, and the filter core body is wrapped on the plastic frame.

8. The humidifying filter core of the cold evaporation humidifying device according to claim 7, characterized in that, the plastic frame comprises a circular ring-shaped upper end face, a circular ring-shaped lower end face and a plurality of support rods; the inner edges of the circular ring-shaped upper end face and the circular ring-shaped lower end face are connected by the plurality of support rods; and the filter core body is wrapped on the support rods between the circular ring-shaped upper end face and the circular ring-shaped lower end face.

9. The humidifying filter core of the cold evaporation humidifying device according to claim 8, characterized in that, the circular ring-shaped upper end face is provided with a plurality of small holes.

10. A cold evaporation humidification device, characterized by, The humidifying filter core of the cold evaporation humidifying device comprises the humidifying filter core according to any one of claims 1-9.

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