A new type of dehumidifying, moisture-blocking and breathable valve

Abstract

This utility model discloses a novel dehumidification and moisture-blocking breathable valve, characterized by comprising: a valve body, a top cover, a waterproof and breathable membrane, a dustproof and breathable cover, and a moisture-blocking component. This novel dehumidification and moisture-blocking breathable valve, through the design of through holes within the valve body, can effectively achieve a balance of internal and external air pressure. Under the coverage of the waterproof and breathable membrane, even in high-humidity or moisture-containing environments, moisture is difficult to penetrate into the interior, thus preventing internal components from becoming damp and damaged. Simultaneously, the moisture-absorbing factors filled in the moisture-absorbing area, combined with the breathable holes, can adsorb and regulate moisture within the system, helping to maintain the dryness and stability of the equipment's interior and improve operational reliability. Furthermore, this breathable valve adopts a modular design, with a clear overall structure and simplified components, fully considering the convenience of production, assembly, and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of breathable valve technology, specifically a novel dehumidifying and moisture-blocking breathable valve. Background Technology

[0002] In fields such as power equipment, communication base stations, and new energy vehicle battery packs, sealed enclosures are widely used to protect internal precision electronic components from external environmental damage. However, temperature changes inside and outside the enclosure can easily lead to pressure fluctuations, which, if not balanced, may pose a risk of the enclosure bursting or collapsing. Waterproof and breathable valves are therefore widely used. They maintain the enclosure's airtightness while balancing internal and external pressure, effectively preventing the ingress of liquid water and dust. However, existing waterproof and breathable valves have the following common shortcomings:

[0003] Limited moisture barrier capacity: Traditional waterproof and breathable membranes can effectively block liquid water, but they cannot prevent gaseous water molecules in the air from slowly permeating into the sealed enclosure. When the ambient temperature changes significantly, the infiltrated moisture can easily condense on the inner wall of the enclosure or the surface of components, leading to the risk of short circuits, corrosion, or even fires in electronic components.

[0004] Limited functionality: Most breathable valves only focus on "waterproofing" and "breathability," lacking active or efficient "moisture-blocking" mechanisms, let alone "dehumidification" functions. Once moisture enters the enclosure, it cannot be effectively removed.

[0005] Passive protection: Some improved valve bodies employ moisture-blocking structures such as diaphragms, but they typically only open when the internal and external pressure difference reaches a specific condition, which is a passive response. Under normal pressure or with little pressure difference change, their effectiveness in preventing continuously intruding moisture is limited, and they cannot handle moisture that has already seeped in.

[0006] Therefore, there is an urgent need for a multi-functional vent valve that can not only balance air pressure, prevent water and dust, but also effectively prevent moisture intrusion and actively reduce humidity inside the sealed box.

[0007] A search revealed a Chinese patent document that discloses a moisture-barrier and breathable balancing valve [Application No.: 202323667076.3, Publication No.: CN221943311U], which includes a valve body and a waterproof and breathable membrane covering the vent holes on the valve body. Although this patent uses a double-spring structure to achieve a good passive moisture-barrier sealing effect, this utility model, through its unique annular moisture-absorbing area and lateral vent hole design, adds an active dehumidification function on the basis of having the same moisture-barrier capacity. It also allows for observation and replacement of the moisture-absorbing factor through a viewing window, achieving more comprehensive, active, and maintainable integrated control of the humidity of the sealed cavity. Utility Model Content

[0008] In view of the problems existing in the prior art, the purpose of this utility model is to provide a new type of dehumidification, moisture-blocking and breathable valve.

[0009] A novel dehumidifying and moisture-blocking breathable valve, characterized in that it comprises: a valve body, a top cover, a waterproof and breathable membrane, a dustproof and breathable cover, and a moisture-blocking component;

[0010] The valve body is T-shaped with a through hole in the middle. The through hole is I-shaped and consists of an upper section, a middle section, and a lower section from top to bottom.

[0011] The top cover is located on the top of the valve body, forming a sealed annular moisture-absorbing area with the valve body. The moisture-absorbing area surrounds the upper section of the through hole.

[0012] The waterproof and breathable membrane is provided at the top of the central perforated section;

[0013] The dustproof and breathable cover is located on the top of the valve body; its size is adapted to the upper orifice section.

[0014] The moisture-blocking component is disposed in the lower section of the through hole;

[0015] The valve body is also provided with a vent hole, one end of which is connected to the moisture absorption area and the other end is connected to the lower hole section.

[0016] Preferably, the moisture-blocking component includes a bottom plug, a spring, a sealing plate, and a sealing gasket; the bottom plug, spring, sealing plate, and sealing gasket are housed in the lower hole section from bottom to top; the bottom plug is provided with a vent hole.

[0017] The above technical solution enables automatic balance of internal and external air pressure. When the internal and external air pressures are close, the spring will cause the sealing plate and sealing gasket to fit tightly against the lower hole section, blocking air from entering the equipment and effectively preventing moisture intrusion. When the internal pressure of the equipment is lower than the external pressure, the higher external air pressure will overcome the spring force and push the sealing plate open, allowing air to enter the equipment cavity through the vent hole opened in the bottom plug, thus achieving rapid compensation and balance of air pressure.

[0018] Specifically, the spring in the moisture-barrier component not only ensures sealing performance but also allows for adjustments to the valve's opening and closing pressure threshold by changing its elasticity. This flexibly adapts to the pressure balance and waterproof sealing requirements of different equipment or application scenarios. This design enables the entire structure to automatically switch operating states based on pressure without manual intervention, ensuring good air permeability while maintaining a tight seal.

[0019] Preferably, the dimensions of the sealing plate and the sealing gasket are adapted to the central hole section.

[0020] The above technical solution enables efficient assembly of the moisture-blocking components and the valve body, as well as excellent sealing performance. The dimensions of the sealing plate and gasket are matched with the central bore section, effectively reducing material waste, preventing leakage due to size mismatch, and improving the fit between components, thereby ensuring moisture-blocking effect and sealing performance.

[0021] Specifically, precise dimensional matching makes the assembly of components more convenient and efficient, reducing the possibility of assembly errors and optimizing the production process. At the same time, accurate fitting also reduces maintenance costs and usage risks caused by poor sealing, improving product consistency and reliability.

[0022] Preferably, the top of the cover may have a viewing window made of transparent material.

[0023] The above technical solution enables direct observation of the moisture-absorbing factor's condition. A viewing window made of transparent material is provided on the top of the cover, allowing users to directly check the moisture-absorbing factor's usage without disassembling the device.

[0024] Specifically, the transparent window allows users to immediately monitor the saturation level of the desiccant, enabling them to determine when replacement is necessary and preventing internal moisture buildup due to desiccant failure. Simultaneously, it eliminates the need for frequent opening of the cover, effectively reducing the risk of compromised sealing performance and improving maintenance convenience and equipment safety.

[0025] Preferably, the outer peripheral wall at the bottom of the valve body is provided with mounting threads and a sealing ring is provided.

[0026] The above technical solution achieves a robust connection and reliable seal between the valve body bottom and the mounting interface. The valve body bottom outer peripheral wall is provided with mounting threads, facilitating quick and stable installation of the valve body to the corresponding position on the equipment, enabling efficient assembly. Simultaneously, the included sealing ring effectively prevents leakage or moisture ingress at the installation location, improving the airtightness and sealing performance of the connection.

[0027] Specifically, the application of mounting threads not only improves assembly efficiency and reduces assembly difficulty, but also enhances the stability of the valve body. The use of sealing rings further reduces the risk of leakage due to gaps at the interface, ensuring a dry environment inside the equipment and contributing to improved overall operational safety and reliability.

[0028] Preferably, the bottom plug and the inner wall of the lower hole section are interference fit.

[0029] The above technical solution enables a tight fit between the bottom plug and the lower bore section. An interference fit is used between the bottom plug and the inner wall of the lower bore section, ensuring the bottom plug is firmly positioned during installation and preventing it from loosening or falling off due to vibration or pressure changes.

[0030] Specifically, the interference fit increases the friction between the bottom plug and the bore wall, improving the reliability and sealing performance of the connection, effectively preventing gas or liquid leakage from the joint, and ensuring the safe operation of the equipment. At the same time, it avoids structural damage caused by bottom plug movement, improving the overall stability and service life of the equipment.

[0031] Preferably, the moisture-absorbing area is filled with moisture-absorbing factors.

[0032] The above technical solution enables effective absorption of moisture inside the equipment. The moisture-absorbing area is filled with hygroscopic agents, allowing air entering the area to fully contact the agents, thereby quickly absorbing and removing moisture from the air.

[0033] Specifically, the addition of desiccant ensures that the internal environment of the equipment remains dry during operation, preventing moisture from adversely affecting equipment performance and components, and extending the equipment's lifespan. At the same time, the status of the desiccant can be monitored through corresponding observation devices, allowing users to replace it as needed to ensure continuous moisture absorption.

[0034] Compared with the prior art, the present invention has the following advantages:

[0035] 1. This novel dehumidifying and moisture-blocking breathable valve, through its perforated design, effectively balances the internal and external air pressure of the equipment. Under the cover of the waterproof and breathable membrane, even in high-humidity or moisture-containing environments, moisture is difficult to penetrate, thus preventing internal components from becoming damp and damaged. Simultaneously, the moisture-absorbing factors filling the moisture-absorbing area, combined with the breathable holes, can adsorb and regulate moisture within the system, helping to maintain the dryness and stability of the equipment's interior and improving its reliability.

[0036] 2. This vent valve adopts a modular design with a clear overall structure and simplified components, fully considering the convenience of production assembly and maintenance. The moisture barrier component pre-assembles the sealing gasket, sealing plate, spring and bottom plug into an independent module that can be installed and removed as a whole, which greatly simplifies the final assembly process with the valve body, reduces the possibility of incorrect installation or omission of parts, and helps to improve production efficiency and product consistency. The design of the top cover not only makes it easy to observe the moisture absorption factor, but also makes it easy to replace. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0038] Figure 2 This is an exploded view of the structure of this utility model;

[0039] Figure 3 This is a three-dimensional structural diagram of the moisture-blocking component of this utility model;

[0040] Figure 4 This is a schematic top view of the valve body of this utility model;

[0041] Figure 5 This is a cross-sectional schematic diagram of the valve body at point AA of this utility model.

[0042] In the diagram: 1. Valve body; 2. Top cover; 3. Waterproof and breathable membrane; 4. Dustproof and breathable cover; 5. Moisture-blocking component; 6. Moisture-absorbing agent; 51. Bottom plug; 52. Spring; 53. Sealing plate; 54. Sealing gasket. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Please see Figures 1 to 5 This utility model provides a technical solution:

[0045] A novel dehumidifying and moisture-blocking breathable valve is characterized by comprising: a valve body 1, an upper cover 2, a waterproof and breathable membrane 3, a dustproof and breathable cover 4, and a moisture-blocking component 5.

[0046] The valve body 1 is T-shaped with a through hole in the middle. The through hole is I-shaped and consists of an upper section, a middle section, and a lower section from top to bottom.

[0047] The upper cover 2 is disposed on the top of the valve body 1, forming a sealed annular moisture absorption area with the valve body 1, and the moisture absorption area surrounds the upper hole section of the through hole.

[0048] The waterproof and breathable membrane 3 is provided to cover the top of the middle perforated section;

[0049] The dustproof and breathable cover 4 is located on the top of the valve body 1; its size is adapted to the upper hole section.

[0050] The moisture-blocking component 5 is disposed in the lower section of the through hole;

[0051] The valve body 1 is also provided with a vent hole inside, one end of which is connected to the moisture absorption area and the other end is connected to the lower hole section.

[0052] Specifically, the moisture-blocking component 5 includes a bottom plug 51, a spring 52, a sealing plate 53, and a sealing gasket 54. The bottom plug 51, spring 52, sealing plate 53, and sealing gasket 54 are housed in the lower section from bottom to top. The bottom plug 51 is provided with a vent hole, which can realize the automatic balance of the internal and external air pressure of the equipment. When the internal and external air pressures are close, the spring 52 will cause the sealing plate 53 and sealing gasket 54 to fit tightly against the lower section, blocking air from entering the equipment and effectively preventing moisture intrusion. When the internal pressure of the equipment is lower than the external pressure, the higher external air pressure will overcome the elasticity of the spring 52 and push the sealing plate 53 open, so that air enters the internal cavity of the equipment through the vent hole of the bottom plug 51, realizing rapid compensation and balance of air pressure.

[0053] Specifically, the spring 52 of the moisture-barrier component 5 not only ensures sealing performance but also allows for adjustment of the valve body 1's opening and closing pressure threshold by changing its elasticity, flexibly adapting to the pressure balance and waterproof sealing requirements of different equipment or application scenarios. This design enables the entire structure to automatically switch operating states based on pressure without manual intervention, ensuring that the equipment maintains a seal while possessing good air permeability.

[0054] In practical applications, this technical solution provides an effective dehumidification and moisture-blocking solution for various electronic, instrumental, or electrical equipment with high requirements for sealing and air pressure management, reducing the risk of moisture damage and improving the stability and safety of equipment operation. The adjustable elasticity of spring 52 also facilitates quick optimization and maintenance by users according to actual environments, enhancing the applicability and reliability of the device.

[0055] Specifically, the dimensions of the sealing plate 53 and the sealing gasket 54 are adapted to the central orifice section, enabling efficient assembly of the moisture-blocking component 5 and the valve body 1, as well as excellent sealing performance. The adaptation of the dimensions of the sealing plate 53 and the sealing gasket 54 to the central orifice section effectively reduces material waste, avoids leakage due to size mismatch, and improves the fit between components, thereby ensuring moisture-blocking effect and sealing performance.

[0056] Specifically, precise dimensional matching makes the assembly of components more convenient and efficient, reducing the possibility of assembly errors and optimizing the production process. At the same time, accurate fitting also reduces maintenance costs and usage risks caused by poor sealing, improving product consistency and reliability.

[0057] In practical applications, this size-adaptive design helps to achieve mass production and standardization, ensuring that each moisture-blocking component 5 has a stable sealing effect, thereby improving the operational safety and service life of the equipment, which is of great significance for equipment that requires high-reliability sealing.

[0058] Specifically, the top of the top cover 2 may have a viewing window made of transparent material, allowing for direct observation of the moisture-absorbing factor 6's status. This transparent viewing window on the top of the top cover 2 facilitates users' direct inspection of the moisture-absorbing factor 6's usage without disassembling the device.

[0059] Specifically, the transparent window allows users to immediately monitor the saturation level of the moisture-absorbing factor 6 (MEF 6), enabling them to determine if replacement is necessary and preventing internal moisture buildup due to MEF 6 deterioration. Simultaneously, it eliminates the need for frequent opening of the cover for inspection, effectively reducing the risk of compromised sealing performance and improving maintenance convenience and equipment safety.

[0060] In practical applications, the transparent window design improves the management efficiency of the moisture absorption factor 6, extends the service life of the equipment, reduces maintenance costs, and improves the user experience. It is of great significance for occasions that require regular monitoring of moisture absorption performance.

[0061] Specifically, the outer peripheral wall at the bottom of valve body 1 is provided with mounting threads and a matching sealing ring, which enables a firm connection and reliable seal between the bottom of valve body 1 and the mounting interface. The mounting threads on the outer peripheral wall at the bottom of valve body 1 facilitate quick and stable installation of valve body 1 to the corresponding position on the equipment, achieving efficient assembly. At the same time, the matching sealing ring effectively prevents leakage or moisture ingress at the installation location, improving the airtightness and sealing performance of the connection.

[0062] Specifically, the application of mounting threads not only improves assembly efficiency and reduces assembly difficulty, but also enhances the stability of valve body 1. The use of sealing rings further reduces the risk of leakage caused by gaps at the interface, ensures a dry environment inside the equipment, and helps improve the overall safety and reliability of the equipment operation.

[0063] In practical applications, this structural design enables modular and standardized installation of the valve body 1, facilitating maintenance and replacement, significantly improving the service life and ease of operation and maintenance of the equipment, and is of great significance for related equipment with high sealing requirements.

[0064] Specifically, the bottom plug 51 and the inner wall of the lower hole section are interference-fitted, which ensures a tight connection between the bottom plug 51 and the lower hole section. The interference fit between the bottom plug 51 and the inner wall of the lower hole section ensures that the bottom plug 51 can be firmly positioned during installation, preventing the bottom plug 51 from loosening or falling off due to vibration or pressure changes.

[0065] Specifically, the interference fit increases the friction between the bottom plug 51 and the bore wall, improving the reliability and sealing performance of the connection, effectively preventing gas or liquid leakage from the joint, and ensuring the safe operation of the equipment. At the same time, it avoids structural damage caused by the movement of the bottom plug 51, improving the overall stability and service life of the equipment.

[0066] In practical applications, the use of interference fit not only simplifies the assembly process but also reduces maintenance costs, making the installation and replacement of the bottom plug 51 more convenient and quick, which is of great significance for equipment that requires high-reliability sealing.

[0067] Specifically, the moisture-absorbing zone is filled with hygroscopic factor 6, which enables effective absorption of moisture inside the equipment. The presence of hygroscopic factor 6 in the zone allows air entering the area to come into full contact with it, thus quickly absorbing and removing moisture from the air.

[0068] Specifically, the addition of a moisture absorber factor of 6 ensures that the internal environment of the equipment remains dry during operation, preventing moisture from adversely affecting equipment performance and components, and extending the equipment's lifespan. At the same time, the status of the moisture absorber factor 6 can be monitored through a corresponding observation device, allowing users to replace it as needed to ensure continuous moisture absorption.

[0069] In practical applications, this structural design improves the moisture resistance and reliability of the equipment, reduces maintenance and repair costs caused by moisture, and has significant application value for equipment that requires moisture protection.

[0070] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0071] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0072] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new dehumidifying moisture barrier air permeable valve characterized in that, include: Valve body (1), top cover (2), waterproof and breathable membrane (3), dustproof and breathable cover (4), and moisture barrier component (5); The valve body (1) is T-shaped and has a through hole in the middle. The through hole is I-shaped and consists of an upper section, a middle section and a lower section from top to bottom. The upper cover (2) is located on the top of the valve body (1) and forms a closed annular moisture absorption area with the valve body (1). The moisture absorption area surrounds the upper hole section of the through hole. The waterproof and breathable membrane (3) is provided on the top of the middle hole section; The dustproof and breathable cover (4) is located on the top of the valve body (1); its size is adapted to the upper hole section; The moisture-blocking component (5) is disposed in the lower section of the through hole; The valve body (1) is also provided with a vent hole (12), one end of which is connected to the moisture absorption area and the other end is connected to the lower hole section.

2. A novel dehumidifying and moisture-proof breathable valve according to claim 1, characterized in that: The moisture barrier component (5) includes a bottom plug (51), a spring (52), a sealing plate (53), and a sealing gasket (54); the bottom plug (51), spring (52), sealing plate (53), and sealing gasket (54) are housed in the lower hole section from bottom to top; the bottom plug (51) is provided with a vent hole.

3. A novel dehumidifying and moisture blocking and air permeating valve according to claim 2, characterized in that: The dimensions of the sealing plate (53) and the sealing gasket (54) are adapted to the central hole section.

4. A novel dehumidifying and moisture blocking and air permeating valve according to claim 1, characterized in that: The top of the cover (2) may have a window made of transparent material.

5. A novel dehumidifying and moisture blocking and air permeating valve according to claim 1, characterized in that: The valve body (1) has an installation thread on the outer peripheral wall at the bottom and is equipped with a sealing ring.

6. A novel dehumidifying and moisture blocking and air permeating valve according to claim 2, characterized in that: The bottom plug (51) and the inner wall of the lower hole section are interference fit.

7. A novel dehumidifying and moisture blocking and air permeating valve according to claim 1, characterized in that: The moisture-absorbing area is filled with moisture-absorbing factor (6).

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