Humidification Assembly

Abstract

This application discloses a dehumidification assembly, a support assembly comprising a frame structure and a first lid and a second lid installed on opposing sides of the frame structure, the first lid comprising a wet inlet and a wet outlet, the second lid comprising a dry inlet and a dry outlet, the support assembly having a housing cavity in the center of the frame structure, and a folding membrane provided within the housing cavity and having a plurality of continuous folding structures, a first chamber formed between the folding membrane and the first lid, a second chamber formed between the folding membrane and the second lid, the first cavity and the second cavity being separated by the folding membrane, wherein the first lid and / or the second lid are provided with a slowing structure for reducing the airflow velocity in the cavity, the slowing structure facing the folding membrane. The embodiments of this application can effectively improve the efficiency of moisture transfer between the air inside the dehumidifying assembly and the folded membrane, thereby effectively reducing the volume of the dehumidifying assembly while maintaining the same dehumidifying performance.

Description

Technical Field

[0001] This application relates to the technical field of humidification assemblies, and particularly to humidification assemblies.

Background Art

[0002] In conventional fuel cell systems, it is generally necessary to install a humidification assembly to ensure that the air inside the fuel cell stack can be maintained within a certain humidity range, thereby improving the stability and performance of the fuel cell system. Currently, the conventional humidification assemblies and system humidification means of fuel cell systems generally use a proton exchange membrane to achieve humidification treatment. The specific principle is to introduce the moist air passing through the fuel cell stack into the humidification assembly, absorb and store the introduced moisture using the proton exchange membrane, and transfer it to the dry air immediately before entering the fuel cell stack, thereby realizing the effect of humidifying the air entering the fuel cell stack.

[0003] Currently commonly used proton exchange membranes include two types: hollow fiber membrane tubes and flat membranes. Here, when using a hollow fiber membrane tube for humidification, its manufacturing process is relatively complex, has high technical requirements, high manufacturing costs of products, and is difficult to mass-produce. At the same time, the relatively complex structure also causes the volume to increase. However, when adopting a flat membrane as the proton exchange membrane, generally, it is necessary to stack multiple flat membranes to ensure the moisture transfer effect. After stacking multiple flat membranes, its main drawback is that the flow resistance of moisture is relatively large, the moisture transfer of each part of the flat membrane becomes non-uniform, affecting the humidification effect. At the same time, multi-layer stacking also increases the volume of the entire humidification assembly to a certain extent.

[0004] Therefore, the above problems not only increase the manufacturing cost of conventional humidification assemblies, but also make it difficult to improve the moisture transfer efficiency of materials whether applying a hollow fiber membrane tube or a flat membrane, so it is difficult to miniaturize the product volume on the premise of ensuring its humidification performance.

Summary of the Invention

[0005] To solve the problems described above in the prior art, this application provides a humidity-enhancing assembly that can minimize its volume while ensuring humidity-enhancing performance.

[0006] This application provides the following technical solution: a dehumidification assembly, the dehumidification assembly is A support assembly comprising a frame structure and a first cover and a second cover installed on opposing sides of the frame structure, wherein the first cover includes a wet inlet and a wet outlet, and the second cover includes a dry inlet and a dry outlet, and a housing cavity is formed in the central part of the frame structure. A folding membrane provided within the housing cavity and having a plurality of continuous folding structures, wherein a first chamber is formed between the folding membrane and a first lid, a second chamber is formed between the folding membrane and a second lid, and the first cavity and the second cavity are separated by a folding membrane that faces each other via the folding membrane. Here, the first lid and / or the second lid are provided with a flow-slowing structure to reduce the airflow velocity in the cavity, and the flow-slowing structure faces the folded membrane.

[0007] In one embodiment, the slow-flow structure includes a slow-flow ridge, which is located between the wet inlet and wet outlet of the first cover and / or between the dry inlet and dry outlet of the second cover. The distance between the slow-flow ridge and the folded membrane is smaller than the distance between the first or second cover on either side of the slow-flow ridge and the folded membrane.

[0008] In one embodiment, the slow-flow structure further includes a raised portion installed on the first cover and / or the second cover, and a gentle slope located on at least one side of the raised portion. The aforementioned protruding portion is provided at an entrance adjacent to the first lid and / or the second lid, The distance between the gently sloping surface and the folded film gradually decreases in the direction from the side closer to the raised portion to the side further away from the raised portion.

[0009] In one embodiment, at least one of the gentle slopes is installed between the entrances of the first and / or second covers and the slow-flow ridge, or At least one of the gentle slopes is installed on one side of the first cover and / or second cover that is directly facing the entrance and away from the entrance.

[0010] In one embodiment, the folding structure includes a folded portion, and the width formed after the folding film is folded is greater than the width between two adjacent folded portions.

[0011] In one embodiment, the frame structure and the first lid, and the frame structure and the second lid are both detachably connected.

[0012] In one embodiment, the frame structure has position-regulating edge strips extending from the periphery on both sides of the connection point between the first lid and the second lid, and the folding membrane is installed within the position-regulating edge strips on both sides.

[0013] In one embodiment, the support assembly further includes a first position-restricting structure and a second position-restricting structure for restricting the position of the folded membrane. The first position regulating structure is provided between the folded membrane and the first lid, and the second position regulating structure is provided between the folded membrane and the second lid. The first position-restricting structure and the second position-restricting structure have a mesh structure for air circulation.

[0014] In one embodiment, the first position regulating structure and the second position regulating structure together constitute a frame structure.

[0015] In one embodiment, the frame structure and the first and second lids are sealed together.

[0016] As can be seen from the above, the dehumidification assembly according to this application utilizes the structural characteristics of the folded membrane to increase the contact area between the air inside the dehumidification assembly and the folded membrane, and then introduces air into the structural gaps of the folded membrane using a slow-flow structure, and increases the contact time by slowing the flow velocity of the air flowing through the folded membrane, thereby making the contact between the air and the folded membrane more sufficient and effectively improving the efficiency of moisture transfer between the air inside the dehumidification assembly and the folded membrane, thereby effectively reducing the volume of the dehumidification assembly while ensuring the same dehumidification performance. [Brief explanation of the drawing]

[0017] [Figure 1] This is a schematic diagram of the exploded structure of a humidity-enhancing assembly according to an embodiment of this application. [Figure 2] This is a schematic cross-sectional diagram of the humidity-enhancing assembly according to an embodiment of this application. [Figure 3] This is a schematic diagram of the internal airflow path of the dehumidifying assembly according to an embodiment of this application. [Figure 4] This is a schematic diagram of another exploded structure of the humidity-enhancing assembly according to an embodiment of this application. [Figure 5] This is a schematic diagram of the external structure of a humidity-enhancing assembly according to an embodiment of this application. [Figure 6] This is a schematic diagram of another internal air passage of the dehumidification assembly according to an embodiment of this application. [Figure 7] This is a schematic diagram of another external structure of the humidity-enhancing assembly according to an embodiment of this application. [Modes for carrying out the invention]

[0018] To facilitate the understanding of the present application, the following will more comprehensively describe the present application while combining the drawings with specific embodiments. The preferred embodiments of the present application are shown in the drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present application more thorough and complete.

[0019] Referring to FIG. 1, the figure shows the exploded structure of the humidification assembly.

[0020] As shown in FIG. 1, this humidification assembly includes a support assembly 1 and a folding film 2. This support assembly 1 includes a frame structure 11, a first lid 13 and a second lid 12 installed on both opposite sides of the frame structure 11. This first lid 13 includes a wet inlet 131 and a wet outlet 132. This second lid 12 includes a dry inlet 121 and a dry outlet 122. A receiving cavity is formed in the central part of the frame structure 11.

[0021] This support assembly 1 is used to form a frame or a case structure and can be manufactured using materials commonly used in cases such as metal materials and polymer materials. The forms of the frame structure 11, the first lid 13 and the second lid 12 may be determined according to the actual situation. For example, this frame may adopt an aluminum frame. This aluminum frame may include four integrally formed side plates to form a frame, and thereby a receiving cavity for placing a folding film 2 is provided around the central part of this frame. This frame may be composed of two or more structures together to form the frame structure 11, so as to adapt to different installation requirements. Similarly, the forms of the first lid 13 and the second lid 12 may be various, and the present application does not limit the specific structural forms of the frame structure 11, the first lid 13 and the second lid 12.

[0022] In one embodiment, the frame structure 11 may be an aluminum frame including side plates around the perimeter, and a seal ring 4 may be installed between the aluminum frame and the first lid 13 and the second lid 12 to provide a seal. Alternatively, a method of injecting adhesive or using adhesive paper may be employed between the aluminum frame and the first lid 13 and the second lid 12 to ensure a seal between them.

[0023] In another embodiment, the frame structure 11 has position-retaining edge strips 111 extending from the periphery on both sides of the connection point with the first lid 13 and the second lid 12, and the folding membrane 2 is placed within the position-retaining edge strips 111 on both sides. These position-retaining edge strips 111 provide relative positioning between the folding membrane 2 and the frame structure 11, thereby fixing the position of the folding membrane 2 within this humidity-enhancing assembly and improving product reliability.

[0024] More specifically, the first lid 13 and the second lid 12 may be fixed together by screws through mounting holes 5 provided on the upper surface. These mounting holes 5 may be spaced apart around the periphery of the first lid 13 and the second lid 12, thereby ensuring the formation of a relatively sealed space between the first lid 13, the second lid 12 and the frame structure 11. Of course, in addition to the mounting holes 5, the first lid 13 and the second lid 12 may also be attached by methods such as locking or adhesive, and as can be understood, in the application process, a common attachment method in this field may be installed between the first lid 13 and the second lid 12 depending on the actual situation.

[0025] Referring to Figure 2, the figure shows a cross-sectional structure of a dehumidification assembly according to an embodiment of the present application. As shown in Figure 2, the folding membrane 2 is provided within the containment cavity and has a plurality of continuous folding structures 21. A first chamber is formed between the folding membrane 2 and the first lid 13, and a second chamber is formed between the folding membrane 2 and the second lid 12, with the first cavity 133 and the second cavity 123 separated from each other via the folding membrane 2. Specifically, the first chamber and the second chamber can be separated using the folding membrane 2 to form a relatively independent space, thereby ensuring relative separation of air between the two chambers.

[0026] Some conventional dehumidification assemblies employ multilayer flat membranes, stacking the flat membranes vertically to form a relatively thick membrane structure, and utilizing the water storage and moisture transfer effects of the multilayer flat membranes to achieve dehumidification relative to dry air on one side. In one embodiment of this application, the folded membrane 2 employs a flat membrane as the material for the folded membrane 2, and this flat membrane may be a hydrophilic membrane composed of PVDF (polyvinylidene fluoride) and PET nonwoven fabric, which can capture and store moisture in the air. Of course, the folded membrane 2 may also be manufactured using a membrane material made of other hydrophilic materials. Specifically, this folded membrane 2 is formed by folding a flat membrane to create a folded membrane 2 having a continuous, multiple folded structure 21. The folded structure 21 may be a structure formed by folding a membrane, and by having multiple continuous folded structures 21, the folded membrane 2 can have a larger contact area with air than the same length or width, which not only improves the moisture transfer effect of the single-layer membrane but also eliminates the problem of uneven moisture distribution that occurs in conventional multilayer laminated flat membranes, thus improving the moisture transfer efficiency for the same volume. At the same time, the manufacturing method of the folded membrane 2 is relatively simple, the materials are cheaper and more reliable, and the manufacturing cost of the product can be effectively reduced. In addition, this folded structure 21 may be formed by joining multiple flat membranes after folding them, or it may be manufactured using the same flat membrane, and the specific manufacturing method may be determined according to the actual situation.

[0027] To obtain better moisture transfer efficiency, the folded structure 21 includes a folded portion, and the width formed after the folded film 2 is folded is greater than the width between two adjacent folded portions. For example, in Figure 2, the width of the folded film 2 after folding is d1, and the width between two folded structures 21 is d2. In this case, d1 is set to be greater than d2, and this method not only improves the contact area between the folded film 2 and the air per unit volume, but also appropriately reduces the flow velocity of the air flowing through the gap between the folded structures 21, thereby further improving moisture transfer efficiency. More specifically, the ratio of d1 to d2 may be greater than 1, or it may be 5:1, 10:1, or even reach a ratio of 20:1 or more. Of course, this ratio may be determined according to the actual application requirements, as long as it is ensured that air can flow between different folded structures 21. Furthermore, the cross-section of the folded portion of this folding structure 21 may be V-shaped or U-shaped, and the specific form is not limited.

[0028] The first lid 13 and / or the second lid 12 are provided with a flow-slowing structure 3 to reduce the airflow velocity within the cavity, and this flow-slowing structure 3 faces the folded membrane 2. Specifically, by installing the flow-slowing structure 3 in either the first lid 13 and the second lid 12, or the first lid 13 and the second lid 12, the air flowing into the first lid 13 and the second lid 12 from the outside has its flow velocity reduced internally, improving the degree of contact between the air and the surface of the folded membrane 2, thereby improving the efficiency of moisture transfer per unit area.

[0029] In one embodiment, the slow-flow structure 3 includes a slow-flow ridge, which is located between the wet inlet 131 and the wet outlet 132 of the first cover 13 and / or between the dry inlet 121 and the dry outlet 122 of the second cover 12, and the distance between this slow-flow ridge and the folded membrane 2 is smaller than the distance between the first cover 13 or the second cover 12 and the folded membrane 2 on either side of the slow-flow ridge. By reducing the distance between the folded membrane 2 and the cover, this slow-flow ridge slows down the air between the slow-flow ridge and the folded membrane 2, thereby reducing the airflow velocity between the inlet and outlet of the first cover 13 or the second cover 12, and can guide some of the air to flow into the gap between the folded structures 21, thereby allowing this portion of the air to come into better contact with the surface of the folded membrane 2 and improving the dehumidifying effect. To ensure understanding, the slow-flow ridges in this dehumidification assembly may consist of one or more, may be ridge-like structures installed inside the lid, or may be formed by changing the external shape of the lid, and the specific form is not limited.

[0030] In the specific operation of this dehumidification assembly, the support assembly 1 is used to support the folded membrane 2 and form the case of the dehumidification assembly, thereby introducing water vapor-laden air from the battery stack into the first lid 13 and transferring the water vapor to one side of the folded membrane 2 installed inside the containment cavity, thereby utilizing the hydrophilicity of the folded membrane 2 to store moisture. At the same time, dry air for entering the battery stack is introduced into the second lid 12, and this dry air is dehumidified and then discharged by flowing the dry air over one side of the moisture-stored folded membrane 2. The above process dehumidifies the dry air using water vapor from the battery stack, eliminating the need to drive it with additional energy and reducing the energy consumption of the device.

[0031] Specifically, referring to Figure 3, the figure shows the internal airflow structure of a dehumidifying assembly according to an embodiment of the present application. Referring to Figure 3, in this embodiment, the figure includes a slow-flow structure 3, a first cavity 133, and a folded membrane 2. Here, the slow-flow structure 3 may also be a slow-flow ridge, and the airflow (corresponding to the arrows) flows from right to left in the figure, and after some of the airflow flows into the slow-flow ridge, the flow velocity of the airflow decreases after being blocked by the slow-flow ridge, and the airflow flows from this side of the first cavity 133 to the other side of the slow-flow ridge, and some of the airflow changes direction due to the blocking of the slow-flow ridge, and is guided to the structural surface of the slow-flow ridge and flows into the gaps between adjacent folded structures 21 of the folded membrane 2, and at this time the airflow enters more of the gaps of the folded membrane 2 under the influence of the slow-flow ridge, thereby enabling moisture transfer between the folded membrane 2 and the slow-flow structure 3.

[0032] If the slow-flow structure 3 is not installed, the folded membrane 2 improves the contact area, but the gaps within the folded membrane 2 have relatively small spaces, resulting in relatively slow airflow velocity, which easily affects the overall humidity increase efficiency of the air. The cooperation between the slow-flow structure 3 and the folded membrane 2 can improve the airflow velocity in the gaps within the folded membrane 2, thereby improving the efficiency of moisture transfer between the air and the folded membrane 2 compared to the system without the slow-flow structure 3.

[0033] Furthermore, the airflow direction formed by the dry inlet 121 and dry outlet 122 may be the same as or opposite to the airflow direction formed by the wet inlet 131 and wet outlet 132, and may be determined specifically according to the mounting method required for the dehumidification assembly or other conditions, and this application is not limited thereto.

[0034] The humidity-enhancing assembly of this application can be applied to a battery assembly having a fuel cell, providing humidity control to the air flowing into and out of the battery assembly of the fuel cell, thereby ensuring the operational reliability and efficiency of the fuel cell. In addition, this humidity-enhancing assembly may be applied to other products that require humidity enhancement.

[0035] As can be seen from the above, the dehumidification assembly according to this application utilizes the structural characteristics of the folded membrane to increase the contact area between the air inside the dehumidification assembly and the folded membrane, and then introduces air into the structural gaps of the folded membrane using a slow-flow structure, and increases the contact time by slowing the flow velocity of the air flowing through the folded membrane, thereby making the contact between the air and the folded membrane more sufficient and effectively improving the efficiency of moisture transfer between the air inside the dehumidification assembly and the folded membrane, thereby effectively reducing the volume of the dehumidification assembly while ensuring the same dehumidification performance.

[0036] Referring to Figure 4, the figure shows another disassembled structure of a dehumidification assembly according to an embodiment of the present application. As shown in Figure 4, this dehumidification assembly includes a support assembly 1 and a folding membrane, the difference from Figure 1 being that the support assembly 1 includes a first position-restricting structure 112 and a second position-restricting structure 113 for restricting the position of the folding membrane. The first position-restricting structure 112 is provided between the folding membrane and a first cover 13, and the second position-restricting structure 113 is provided between the folding membrane and a second cover 12. Here, the first position-restricting structure 112 and the second position-restricting structure 113 are used to restrict the position of the folding membrane and prevent the folding membrane from becoming invalid due to physical impact.

[0037] Here, the first position regulating structure 112 and the second position regulating structure 113 may be attached to each other by mounting holes 5, or the mounting holes 5 may be installed on the periphery of the first position regulating structure 112 and the second position regulating structure 113, thereby fitting and fixing them with screws to ensure mounting reliability. Furthermore, these mounting holes 5 may also be installed on the periphery of the first cover 13 and the second cover 12, thereby fixing the cover and the position regulating structure simultaneously with screws. In addition, a seal ring 4 may be installed to seal between the first position regulating structure 112 and the first cover 13, and between the second position regulating structure 113 and the second cover 12. Alternatively, adhesive injection or adhesive paper may be used to ensure sealing performance between the first position regulating structure 112 and the first cover 13, and between the second position regulating structure 113 and the second cover 12.

[0038] In some embodiments, the first position-restricting structure 112 and the second position-restricting structure 113 have a mesh structure for air circulation, which restricts the position of the folded membrane, positioning it between the first position-restricting structure 112 and the second position-restricting structure 113. This not only improves the structural reliability of the product but also avoids affecting the airflow effect within the cavity and ensures the efficiency of moisture transfer inside the dehumidifying assembly.

[0039] In some other embodiments, in addition to arranging the first position-regulating structure 112 and the second position-regulating structure 113 to have a mesh structure, one or more beam-like structures or baffle structures may be installed to regulate the position of the folding membrane, and the specific method of arranging and implementing these beam-like structures or baffle structures may be determined according to the actual situation.

[0040] Furthermore, the first position-restricting structure 112 and the second position-restricting structure 113 can together constitute a frame structure, thereby providing a certain level of support and protection for the folding membrane. They can be installed as removable connections, allowing the user to remove or insert the folding membrane by removing the first position-restricting structure 112 and the second position-restricting structure 113, facilitating the user to remove and replace the folding membrane and reducing maintenance costs. Of course, the first position-restricting structure 112 and the second position-restricting structure 113 may be integrally molded, and the specific method is not limited.

[0041] In one embodiment, the first slow-flow structure further includes a raised portion 32 installed on the first cover 13 and / or the second cover 12, and a gently sloping surface 33 located on at least one side of the raised portion 32. The raised portion 32 is provided at an entrance adjacent to the first cover 13 and / or the second cover 12, and the distance between the gently sloping surface 33 and the folded membrane gradually decreases in the direction from the side adjacent to the raised portion 32 to the side away from the raised portion 32.

[0042] Here, one side of the cavity corresponding to the raised portion 32 communicates with the inlet / outlet, and the distance between the top of the raised portion 32 and the folded membrane may be greater than or equal to the distance from the top of the inlet / outlet tube to the folded membrane, thereby ensuring that the cavity corresponding to the raised portion 32 has a certain amount of space, allowing the interior to accommodate a certain amount of air. The gently sloping surface 33 extends inward from the side of the raised portion 32 closer to the inlet / outlet to the side further away from the inlet / outlet, and the distance between the gently sloping surface 33 and the folded membrane on different sides is varied, allowing for further control of the internal airflow velocity by utilizing the structural characteristics of the gently sloping surface 33, thereby improving the efficiency of moisture transfer between the air and the folded membrane, and further effectively reducing the volume of the dehumidification assembly while ensuring the same dehumidification performance.

[0043] Referring to Figure 5, the figure shows a schematic diagram of the external structure of a dehumidification assembly according to an embodiment of this application.

[0044] As shown in Figure 5, the second lid 12 is included, and a dry inlet 131 and a dry outlet 132 are installed on this second lid 12. A raised portion 32 is installed at the connection point between the dry inlet 131, the dry outlet 132 and the second lid 12, and the distance between the top of this raised portion 32 and the folded membrane corresponds to the vertical distance from the top of the dry inlet 131 and the dry outlet 132 to the folded membrane. Furthermore, a gentle slope 33 is installed around this raised portion 32, and this gentle slope 33 is inclined from one side connected to the raised portion 32 to one side moving away from the raised portion 32, and the distance between this gentle slope 33 and the folded membrane gradually decreases in the direction from one side approaching the raised portion 32 to one side moving away from the raised portion 32.

[0045] Specifically, a slow-flow ridge 31 is further installed on the second cover 12, positioned between the dry outlet 132 and the dry inlet 131, dividing the second cavity formed by the second cover 12 into two substantially two parts, and communicating with each other through a gap between the slow-flow ridge 31 and the folded membrane. Furthermore, the dry inlet 131 and dry outlet 132 may be installed on opposing sides of the second cover 12 and in opposite directions. By installing the dry inlet 131 and dry outlet 132 in opposite directions, the airflow path can be optimized, thereby facilitating the installation and application of the dehumidification assembly and further improving the airflow effect between the airflow and the folded membrane. As can be understood, the installation direction of the dry inlet 131 and dry outlet 132 may be determined according to the actual situation, for example, they may be installed in the same direction or at other angles, and this application is not limited thereto.

[0046] Referring to Figure 6, the figure shows another internal air passage structure according to an embodiment of this application.

[0047] Referring to Figure 6, the airflow from the dry inlet 131 enters the chamber corresponding to the raised section 32, and is then decelerated by the gentle slope 33 and slow-flow ridge 31, thereby increasing the time this airflow remains inside the dehumidifying assembly. Furthermore, this airflow is guided by the structural features of the gentle slope 33 and slow-flow ridge 31, and as the airflow touches the gentle slope 33 and slow-flow ridge 31, it moves toward the folded membrane, making it easier to enter the gaps between the different folded structures of the folded membrane. This allows for more sufficient contact between the air and the folded membrane surface in the gaps between the folded structures, further improving the efficiency of moisture transfer between the folded membrane and the air.

[0048] To make it easier to understand, the above structural method may be applied not only to the second lid 12 but also to the first lid 13, thereby ensuring that the water vapor-laden airflow can come into sufficient contact with the folded membrane, further increasing the efficiency of moisture transfer between the folded membrane and the water vapor-laden air, and improving the water storage effect of the folded membrane.

[0049] Referring to Figure 7, the figure shows another external structure of the dehumidification assembly according to an embodiment of the present application.

[0050] The external structure of this dehumidifying assembly may also be applied to a first lid 13. This first lid 13 may include a wet inlet 131 and a wet outlet 132, and a slow-flow ridge 31 for reducing the airflow velocity is installed in the center of the first lid 13 or between the wet inlet 131 and the wet outlet 132. The width of this slow-flow ridge 31 along the airflow direction may be set to be relatively large, for example, greater than one-quarter of the width of the lid in the airflow direction, thereby better ensuring that the airflow entering from the wet inlet 131 can flow sufficiently through the gaps between the different folding structures of the folded membrane, and further improving the moisture transfer effect between the folded membrane and the air.

[0051] Furthermore, the gentle slope 33 of the first cover 13 is installed on the other side facing the entrance / exit of the raised section 32, and is positioned opposite the direction of the entrance / exit. By installing it in this manner, the gentle slope 33 can correspondingly mitigate the airflow velocity when airflow flows in or out, thereby ensuring that the airflow can make sufficient contact with the folded membrane.

[0052] Furthermore, at least one of the gentle slopes 33 is installed between the entrance / exit of the first cover 13 and / or the second cover 12 and the slow-flow ridge, or at least one of the gentle slopes 33 is installed on one side facing the entrance / exit of the first cover 13 and / or the second cover 12 and away from the entrance / exit. This installation allows the gentle slope 33 to effectively improve its slow-flow function.

[0053] As can be understood, the above structure may be applied to the second cover 12 in addition to being applied to the first cover 13, and furthermore, regarding the design methods of the different slow-flow structures of the raised portion 32, the gentle slope 33 and the slow-flow ridge 31, the first cover 13 and the second cover 12 may adopt the methods in Figures 5 and 7 simultaneously, or adopt the method in Figure 5 or Figure 7 individually, and all of the above designs can be adjusted according to the actual situation. Clearly, the above design can improve the efficiency of moisture transfer between air and the folded membrane, and furthermore, it can effectively reduce the volume of the dehumidification assembly while ensuring the same dehumidification performance.

[0054] It should be explained that when an element is said to be "attached" to another element, it may be directly located to the other element or there may be an intervening element. When one element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intervening element at the same time.

[0055] It should be understood that the directions or positional relationships indicated by terms such as "length," "width," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are directions or positional relationships shown based on the drawings and are merely for the convenience and simplification of the description in this application. They do not indicate or imply that the mentioned device or element has a specific direction or must be configured and operated in a specific direction, and therefore should not be understood as limitations on this application.

[0056] Furthermore, the terms "first" and "second" are merely descriptive and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features being referred to. Thus, features designated as "first" or "second" may explicitly or implicitly include one or more of these features. In the description of this application, unless otherwise clearly and specifically defined, "multiple" means two or more.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used herein are for the sole purpose of describing specific embodiments and are not intended to limit this application.

[0058] The above is merely an example and description of the structure of this application, and while there are more specific and detailed descriptions, they should not be understood as limiting the scope of this application's patent. It should be noted that, for those skilled in the art, several further modifications and improvements can be made without departing from the concept of this application, and these obvious alternative forms all fall within the scope of protection of this application.

Claims

1. A dehumidifying assembly, wherein the dehumidifying assembly is A support assembly comprising a frame structure and a first cover and a second cover installed on opposing sides of the frame structure, wherein the first cover includes a wet inlet and a wet outlet, and the second cover includes a dry inlet and a dry outlet, and a housing cavity is formed in the central part of the frame structure. A folding membrane provided within the housing cavity and having a plurality of continuous folding structures, wherein a first chamber is formed between the folding membrane and a first lid, a second chamber is formed between the folding membrane and a second lid, and the first cavity and the second cavity are separated by a folding membrane that faces each other via the folding membrane. A dehumidifying assembly characterized in that the first lid and / or the second lid are provided with a flow-slowing structure for reducing the airflow velocity in the cavity, and the flow-slowing structure faces the folded membrane.

2. The slow-flow structure includes a slow-flow ridge, which is located between the wet inlet and wet outlet of the first cover and / or between the dry inlet and dry outlet of the second cover. The dehumidification assembly according to claim 1, characterized in that the distance between the slow-flow ridge and the folded membrane is smaller than the distance between the first or second cover on either side of the slow-flow ridge and the folded membrane.

3. The slow-flow structure further includes a raised portion installed on the first cover and / or the second cover, and a gentle slope located on at least one side of the raised portion. The aforementioned protrusion is provided at an entrance adjacent to the first lid and / or the second lid, The humidity-boosting assembly according to claim 2, characterized in that the distance between the gently sloping surface and the folded film gradually decreases in the direction from the side closer to the raised portion to the side further away from the raised portion.

4. At least one of the aforementioned gentle slopes is installed between the entrances of the first and / or second covers and the slow-flow ridge, or The dehumidifying assembly according to claim 3, characterized in that at least one of the gentle slopes is installed on one side of the first cover and / or second cover that is directly facing the entrance and away from the entrance.

5. The dehumidifying assembly according to claim 1, characterized in that the folding structure includes a folded portion, and the width formed after the folding membrane is folded is greater than the width between two adjacent folded portions.

6. The dehumidifying assembly according to claim 1, characterized in that the frame structure and the first lid, and the frame structure and the second lid, are both detachably connected.

7. The humidity-boosting assembly according to claim 1, characterized in that the frame structure has position-regulating edge strips extending from the periphery on both sides of the connection point between the first lid and the second lid, and the folded membrane is installed within the position-regulating edge strips on both sides.

8. The support assembly further includes a first position-restricting structure and a second position-restricting structure for restricting the position of the folded membrane. The first position regulating structure is provided between the folded membrane and the first lid, and the second position regulating structure is provided between the folded membrane and the second lid. The humidity-enhancing assembly according to claim 1, characterized in that the first position-restricting structure and the second position-restricting structure have a mesh structure for air circulation.

9. The humidity-enhancing assembly according to claim 8, characterized in that the first position-restricting structure and the second position-restricting structure both constitute a frame structure.

10. The humidity-enhancing assembly according to claim 1, characterized in that the frame structure and the first lid and the second lid are sealed together.

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