Wet curtain and humidifier

By wrapping and edge-binding the cut surface of the evaporative cooling pad substrate and using a detachable connection structure, the problems of impurities entering and time-consuming operation are solved, achieving the effects of preventing impurities from entering and facilitating installation.

CN224151092UActive Publication Date: 2026-04-21NINGBO DEYE DAILY APPLIANCE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DEYE DAILY APPLIANCE TECH CO LTD
Filing Date
2025-04-22
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing evaporative cooling pads are prone to impurities entering after the substrate is cut, which reduces the humidification effect. Furthermore, the operation of installing the cylindrical evaporative cooling pads on the frame is time-consuming and labor-intensive, resulting in low assembly efficiency.

Method used

A rectangular substrate is folded in half to form an exposed cutting plane and then covered with a first edge to prevent impurities from entering. The two ends of the filter element are connected by a detachable connection structure such as Velcro, zipper, buckle or magnetic attraction to form a cylinder and stably cover the skeleton.

Benefits of technology

It effectively prevents impurities from entering the substrate, reduces the frequency of wet curtain replacement, lowers installation difficulty, and improves production efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224151092U_ABST
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Abstract

The utility model provides a wet curtain and a humidifier, the wet curtain comprises a filter element, the filter element comprises a rectangular base material and a first covered edge, two short edges are formed after two long edges of the base material are folded, an exposed first cutting plane is formed at the top end after the base material is folded, and the first covered edge covers the first cutting plane of the filter element; two ends of the first covered edge in the width direction respectively extend to two opposite sides of the filter element and are fixedly connected with the filter element; the detachable connecting structures are arranged on the two short edges of the folded base material, the two ends of the filter elements are detachably connected through the detachable connecting structures, and the filter elements can form a barrel after being connected through the detachable connecting structures. According to the wet curtain, the two short edges of the filter element are provided with the detachable connecting structures used in cooperation, the wet curtain can be unfolded and folded through the detachable connecting structures, the framework can be stably wrapped with the wet curtain through the detachable connecting structures, operation is convenient and fast, the difficulty that the wet curtain is installed on the framework is greatly lowered, and the wet curtain is convenient to use. And the production efficiency is improved.
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Description

Technical Field

[0001] This application belongs to the field of air humidification technology, and more specifically, relates to a wet curtain and a humidifier. Background Technology

[0002] A wet curtain is an important component of a humidifier. It distributes moisture evenly and ensures sufficient contact with the air through capillary action, thus achieving a humidifying effect. Current wet curtains are generally made by cutting a substrate of a certain thickness, rolling it into a tube, and then sewing the ends together to form a cylinder. However, impurities can easily get into the ends of the substrate after cutting, which will reduce the humidifying effect with long-term use, requiring replacement of the wet curtain. Although the cylindrical wet curtain has a certain degree of elasticity, fitting the wet curtain onto the frame is time-consuming and laborious, resulting in low assembly efficiency. Utility Model Content

[0003] The purpose of this application is to provide a wet curtain and humidifier that are easy to assemble and can effectively prevent impurities from entering the interior of the substrate.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a wet curtain, comprising:

[0005] A filter element for supplying humidified water includes a rectangular substrate and a first edging. The two long sides of the substrate are folded in half to form two short sides. The substrate is folded in half to form a first cut surface exposed at the top. The first edging covers the first cut surface of the filter element to prevent impurities from entering the substrate from the first cut surface. The two ends of the first edging extend to opposite sides of the filter element in the width direction and are connected and fixed to the filter element.

[0006] A detachable connection structure is provided on the two short sides, and the two ends of the filter element are detachably connected through the detachable connection structure. After the filter element is connected through the detachable connection structure, it can form a cylindrical body.

[0007] In one embodiment, the detachable connection structure includes hook-and-loop fasteners and loop fasteners.

[0008] In one embodiment, the detachable connection structure includes a first zipper strap and a second zipper strap that work together.

[0009] In one embodiment, the detachable connection structure includes a snap-fit ​​connector and a retainer, the retainer having a slot for the snap-fit ​​connector to engage.

[0010] In one embodiment, the detachable connection structure includes mating male and female buckles.

[0011] In one embodiment, the detachable connection structure includes a first magnet and a second magnet, wherein the magnetic poles of the opposing surfaces of the first magnet and the second magnet are different.

[0012] In one embodiment, after the substrate is folded in half, a second cutting plane is formed on the end faces of the two short sides. The second cutting plane is covered with a second edging. The detachable connection structure and the second edging are sewn onto the corresponding short side of the filter element.

[0013] In one embodiment, one end of the second edging extends to the top of the filter element.

[0014] A humidifier includes a frame and a wet curtain sleeved on the outer periphery of the frame, wherein the wet curtain is the aforementioned wet curtain, and a water distribution tray is detachably installed at the top of the frame, and the bottom surface of the water distribution tray is provided with an annular groove for receiving the top of the cylinder.

[0015] In one embodiment, the frame is fastened to the water distribution tray.

[0016] The beneficial effects of the evaporative cooling pad provided in this application are as follows: Compared with the prior art, the first edge of the evaporative cooling pad in this application can effectively prevent impurities from entering the interior of the substrate, reducing the replacement frequency of the evaporative cooling pad; a detachable connection structure is provided on the two short sides of the filter element for cooperation, which allows the evaporative cooling pad to be unfolded and retracted. When retracted, it can form a cylinder. The detachable connection structure can stably cover the evaporative cooling pad on the frame, making operation convenient, greatly reducing the difficulty of installing the evaporative cooling pad on the frame, and improving production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, 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.

[0018] Figure 1 A perspective view of the evaporative cooling pad provided in an embodiment of this application;

[0019] Figure 2 This is a cross-sectional view of the substrate after it has been folded in half and the first edge has been wrapped around it.

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram illustrating the process of making a wet curtain using a substrate.

[0022] Figure 5 for Figure 1 The side view of the evaporative cooling pad shown;

[0023] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0024] Figure 7 This is a structural diagram of the evaporative cooling pad installed on the frame.

[0025] Figure 8 This is a cross-sectional view of the evaporative cooling pad installed on the frame.

[0026] The following are the labeling elements in the figure:

[0027] 1-Wet curtain; 2-Frame; 3-Water distribution tray; 4-Detachable connection structure; 101-First seam; 102-Second seam; 10-Filter element; 11-Base material; 12-First cutting plane; 13-First edging; 14-Second cutting plane; 15-Second edging; 110-Surface layer; 111-Core layer; 112-Long side; 113-Short side; 130-Skirt; 30-Annular groove; 31-Water channel; 41-Hook and loop fastener; 42-Rough fastener. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "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.

[0031] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Please refer to the following: Figures 1 to 4 The evaporative cooling pad 1 provided in this application embodiment will now be described. The evaporative cooling pad 1 includes a filter element 10 for supplying humidifying water and a detachable connection structure 4. The filter element 10 includes a rectangular substrate 11 and a first edging 13. The substrate 11 has a certain thickness. After folding its two long sides 112, two short sides 113 are formed on both sides. After folding, a first cut surface 12 is exposed at the top of the substrate 11. The first edging 13 covers the first cut surface 12 to prevent impurities from entering the substrate 11 from the first cut surface 12. The two ends of the first edging 13 extend to opposite sides of the filter element 10 in the width direction and are connected and fixed to the filter element 10. The first edging 13 and the filter element 10 can be connected by, but is not limited to, sewing, bonding, or a connector. In one embodiment, the first edging 13 completely covers the first cut surface 12, and the first edging 13 is fixed to the filter element 10 by sewing. The two ends of the first edge band 13 in the width direction extend to the opposite sides of the substrate 11 and form a skirt 130. The skirts 130 on both sides are sewn onto the filter element 10 by the first seam 101, which can be one or more turns.

[0033] By setting the first edge 13, it is possible to prevent dust, hair and other impurities mixed in the humidification water from entering the interior of the substrate 11 from the top of the wet curtain 1, thus avoiding the accumulation of impurities inside the substrate 11 and affecting the performance of the wet curtain 1, and reducing the frequency of cleaning and replacement of the wet curtain 1.

[0034] The detachable connection structure 4 is provided on the two short sides 113 of the substrate 11 after it is folded in half. The two ends of the filter element 10 are detachably connected through the detachable connection structure 4, that is, the wet curtain 1 can switch between an unfolded state and a retracted state through the detachable connection structure 4. When the filter element 10 is retracted through the detachable connection structure 4, it can form a cylinder, which can then be used to cover the frame. Compared with the installation of the cylindrical wet curtain 1, the installation difficulty of the wet curtain 1 provided in this embodiment is greatly reduced, the production efficiency is improved, and the replacement operation of the wet curtain is also facilitated.

[0035] Specifically, the detachable connection structure 4 can be one or more of the following combinations: Velcro, snap fasteners, zippers, buckles, or magnetic connection structures.

[0036] The substrate 11 includes a core layer 111 and surface layers 110 disposed on both sides of the core layer 111. The core layer 111 has a porous structure, and the surface layer 110 is a stretched mesh. The core layer 111 can be made of composite fibers, and the surface layer 110 can also have a porous structure. The first edging 13 can be made of stretched mesh, which has good breathability and flexibility, and can provide effective protection for the first cutting plane 12. The first edging 13 can also be made of a breathable fabric.

[0037] Compared with the prior art, the wet curtain 1 provided in this application has a first edge 13 that can effectively prevent impurities from entering the interior of the substrate 11, reducing the replacement frequency of the wet curtain 1; a detachable connection structure 4 is provided on the two short sides 113 of the filter element 10, which allows the wet curtain 1 to be unfolded and retracted. When retracted, it can form a cylinder. The detachable connection structure 4 can stably cover the wet curtain 1 on the frame, making operation convenient, greatly reducing the difficulty of installing the wet curtain 1 on the frame, and improving production efficiency.

[0038] In one embodiment, see Figures 4 to 6 The detachable connection structure 4 uses Velcro. Specifically, the detachable connection structure 4 includes hook-and-loop Velcro 41 and loop Velcro 42. Hook-and-loop Velcro 41 is sewn onto the short side 113 on one side of the filter element 10, and loop Velcro 42 is sewn onto the short side 113 on the other side of the filter element 10. Hook-and-loop Velcro 41 is located on the inside of the short side 113, and loop Velcro 42 is located on the outside of the short side 113. That is, hook-and-loop Velcro 41 and loop Velcro 42 are located on the opposite sides of the two short sides 113. After they are glued together, they form a tubular wet curtain 1.

[0039] After the substrate 11 is folded in half, a second cutting plane 14 is formed on the end faces of the two short sides 113, and the second cutting plane 14 is covered with a second edge band 15. The detachable connection structure 4 and the second edge band 15 are sewn onto the corresponding short sides 113 of the filter element 10. The two ends of the second edge band 15 are sewn onto the short sides 113 by a second seam 102, which can be one or more turns.

[0040] In other words, the short sides 113 on both sides of the filter element 10 are covered by the second edging 15, so that no cut surfaces are exposed on any side of the filter element 10, and impurities in the water are less likely to enter the interior of the substrate 11. The detachable connecting structure 4 and the second edging 15 can be sewn separately onto the short sides 113. Alternatively, the detachable connecting structure 4 and the second edging 15 can be sewn together onto the filter element 10, that is, the detachable connecting structure 4 and the second edging 15 are sewn onto the filter element 10 in one go through the second seam 102, without the need for separate sewing, which can improve manufacturing efficiency.

[0041] See Figure 1One end of the second edge band 15 extends to the top of the filter element 10, so that the second edge band 15 and the first edge band 13 meet at the corner of the top of the filter element 10, that is, the second edge band 15 and the first edge band 13 have an overlapping area. After the second edge band 15 and the first edge band 13 are sewn together, there will be no exposed cut surfaces at the top and side of the filter element 10, which can prevent impurities from entering the interior of the substrate 11.

[0042] See Figures 3 to 6 Taking the detachable connection structure 4 using Velcro as an example, the specific manufacturing process of the wet curtain 1 is as follows: First, fold the rectangular base material 11 along the central axis P so that the two long sides 112 overlap, and the two shorter ends of the base material 11 are the short sides 113; sew the first binding 13 at the top of the folded base material 11 through the first seam 101; sew the second binding 15, hook Velcro 41 and loose Velcro 42 on the two short sides 113 through the second seam 102 respectively, thus forming the wet curtain in the unfolded state, and completing the manufacturing of the wet curtain.

[0043] In one embodiment, the detachable connection structure 4 is a zipper. Specifically, the detachable connection structure 4 includes a first zipper strap and a second zipper strap that work together. The first zipper strap is disposed on the short side 113 on one side of the filter element 10, and the second zipper strap is disposed on the short side 113 on the other side of the filter element 10.

[0044] In one embodiment, the detachable connection structure 4 employs a snap-fit ​​mechanism. Specifically, the detachable connection structure 4 includes a snap-fit ​​member and a snap-fit ​​seat respectively disposed on the two short sides 113 of the filter element 10. The snap-fit ​​seat has a snap-fit ​​groove corresponding to the position of the snap-fit ​​member for snap-fit ​​engagement, so that the two short sides 113 of the wet curtain 1 are detachably connected by snap-fit ​​engagement. Multiple snap-fit ​​members and snap-fit ​​seats can be provided in pairs.

[0045] In one embodiment, the detachable connection structure 4 uses a snap fastener. Specifically, the detachable connection structure 4 includes a male and female snap fastener that work together. The male snap fastener is sewn onto the short side 113 on one side of the filter element 10, and the female snap fastener is sewn onto the short side 113 on the other side of the filter element 10. Multiple male and female snap fasteners can be provided in pairs.

[0046] In one embodiment, the detachable connection structure 4 employs a magnetic assembly, with the two short sides 113 of the filter element 10 connected together using a magnetic attraction method. Specifically, the detachable connection structure 4 includes a first magnetic attractor and a second magnetic attractor. Both the first and second magnetic attractors can be magnets. A first magnet is disposed on one side of the short side 113 of the filter element 10, and a second magnet is disposed on the other side of the short side 113 of the filter element 10. The magnetic poles of the opposing surfaces of the first and second magnets are different, so that the two short sides 113 can be attracted and fixed to each other by magnetic force when they are close together. Understandably, the first and second magnetic attractors can also be a combination of magnets and stainless steel blocks, with a magnet disposed on one side of the short side 113 of the filter element 10 and a stainless steel block disposed on the other side of the short side 113 of the filter element 10. Multiple first and second magnetic attractors can be provided in pairs.

[0047] See Figure 7 , Figure 8 The humidifier provided in this embodiment includes a frame 2 and a wet curtain 1 as described in the above embodiment, which is sleeved on the outer periphery of the frame 2. A water distribution tray 3 is circumferentially and evenly provided with multiple inclined water channels 31. Water flowing from the outlet at the center of the water distribution tray 3 can flow along each water channel 31 to the surrounding sides and through each drain hole to the wet curtain 1. The wet curtain 1 is both breathable and allows water to pass through; most of the scale will remain on the wet curtain 1, preventing scale from drying and becoming white powder that disperses indoors. The water distribution tray 3 is detachably installed at the top of the frame 2. The bottom surface of the water distribution tray 3 has an annular groove 30 to accommodate the top of the cylinder body; that is, after the wet curtain 1 is rolled up and wrapped around the frame 2, its top end is inserted into the annular groove 30. The frame 2 and the water distribution tray 3 can be installed together by a snap-fit ​​connection.

[0048] During assembly, the unfolded wet curtain 1 is wrapped around the outer periphery of the frame 2 and then fastened together with Velcro at both ends of the wet curtain 1. In this way, the wet curtain 1 is installed on the frame 2. Then, the water distribution tray 3 is fastened to the top of the frame 2. This completes the assembly of the water distribution device, which is easy to operate.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wet screen, characterized by: include: A filter element for supplying humidified water includes a rectangular substrate and a first edging. The two long sides of the substrate are folded in half to form two short sides. The substrate is folded in half to form a first cut surface exposed at the top. The first edging covers the first cut surface of the filter element to prevent impurities from entering the substrate from the first cut surface. The two ends of the first edging extend to opposite sides of the filter element in the width direction and are connected and fixed to the filter element. A detachable connection structure is provided on the two short sides, and the two ends of the filter element are detachably connected through the detachable connection structure. After the filter element is connected through the detachable connection structure, it can form a cylindrical body.

2. The wet screen of claim 1, wherein: The detachable connection structure includes hook-and-loop fasteners and loop fasteners.

3. The wet screen of claim 1, wherein: The detachable connection structure includes a first zipper strap and a second zipper strap that work together.

4. The wet screen of claim 1, wherein: The detachable connection structure includes a snap-fit ​​component and a snap-fit ​​base, wherein the snap-fit ​​base is provided with a slot for the snap-fit ​​component to engage.

5. The wetted screen of claim 1 wherein: The detachable connection structure includes a female buckle and a female buckle that work together.

6. The wetted screen of claim 1 wherein: The detachable connection structure includes a first magnet and a second magnet, wherein the magnetic poles of the opposing surfaces of the first magnet and the second magnet are different.

7. The wetted screen of claim 1 wherein: After the substrate is folded in half, a second cutting plane is formed on the end face of the two short sides. The second cutting plane is covered with a second edge. The detachable connection structure and the second edge are sewn onto the corresponding short side of the filter element.

8. The wet screen of claim 7, wherein: One end of the second edging extends to the top of the filter element.

9. A humidifier comprising a skeleton, a wet curtain which is sleeved on the peripheral side of the skeleton, characterized in that: The wet curtain is the wet curtain according to any one of claims 1 to 8, and a water distribution tray is detachably installed at the top of the frame, and the bottom surface of the water distribution tray is provided with an annular groove to accommodate the top of the cylinder.

10. The humidifier of claim 9, wherein: The frame is fastened to the water distribution plate.