A spring-loaded explosion-proof valve device integrating humidity control, balance, explosion-proof, and smoke-blocking functions.

Abstract

This invention discloses a spring-loaded explosion-proof valve device integrating humidity control, balance, explosion prevention, and smoke blocking functions, comprising a protective cover, a valve body assembly, a double-layer waterproof and breathable membrane, a one-way air pressure assembly, and an explosion relief assembly. The valve body assembly has multiple axially connected guide channels, including an inlet guide channel, an outlet guide channel, and an explosion relief guide channel. The inlet guide channel contains a one-way inlet assembly and a double-layer waterproof and breathable membrane; the outlet guide channel contains a one-way outlet assembly and a waterproof and breathable membrane; and the explosion relief guide channel contains an explosion relief assembly. The protective cover is located on top of the valve body assembly, and a vent is provided between the protective cover and the valve body assembly. When a pressure difference occurs between the inside and outside of the housing, it ensures the flow of gas, achieving bidirectional pressure balance and preventing excessive pressure difference from damaging the battery casing's seal.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle battery system technology, specifically referring to a spring-type explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions. Background Technology

[0002] High-performance, high-voltage batteries are at the heart of electric mobility technology. To protect these batteries, it is essential to prevent water and dust from entering the battery system while maintaining internal and external pressure equilibrium. Significant pressure fluctuations can severely compromise the battery casing's seal, negatively impacting battery performance or even completely destroying it.

[0003] Battery packs require cooling, and condensation occurs when the coolant or refrigerant piping and battery cooler surface temperature drop below the ambient dew point. Condensation issues in the battery thermal management system can lead to electrical short-circuit risks, corrosion of metal components, and decreased insulation performance, requiring immediate attention. Furthermore, in the event of a sudden pressure surge, such as due to thermal runaway, a specific venting device is needed to reduce pressure through controlled opening.

[0004] Therefore, the valve body of the battery system of new energy vehicles must simultaneously meet the following requirements: pressure balance and humidity control function inside the cavity during system operation, waterproof and dustproof function, and explosion relief function for rapid pressure relief in case of sudden thermal runaway, so as to ensure safety and normal operation of the system.

[0005] Currently available vent valves in China either only have simple explosion-proof functions and cannot control humidity and block smoke, or they can achieve simple humidity control balance but cannot achieve explosion-proof and smoke-blocking performance. They cannot guarantee the performance of new energy battery systems throughout their entire life cycle, nor can they meet the new explosion-proof smoke filtering effect required by the new national standard GB38031-2025 for power batteries for electric vehicles. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the purpose of this invention is to provide a valve body for a battery system in new energy vehicles, which solves the problem of humidity and pressure balance in the internal cavity of the battery system during operation, and also has the functions of waterproofing and dustproofing, explosion-proofing and smoke blocking in the event of thermal runaway, ensuring the performance of the battery system throughout its entire life cycle, extending product life, and protecting personnel safety.

[0007] The technical solution of the present invention is as follows: a spring-type explosion-proof valve device integrating humidity control, balance, explosion-proof and smoke-blocking functions, including a protective cover, a valve body assembly, a double-layer waterproof and breathable membrane, a one-way air pressure assembly and an explosion relief assembly; The valve body assembly has multiple axially continuous guide channels, including an air inlet guide channel, an air outlet guide channel, and an explosion venting guide channel. The air inlet guide channel is equipped with a one-way air inlet component and a double-layer waterproof and breathable membrane. The air outlet guide channel is equipped with a one-way air outlet component and a waterproof and breathable membrane. The explosion venting guide channel is equipped with an explosion venting component. The protective cover is located on the top of the valve body assembly, and a vent hole is provided between the protective cover and the valve body assembly.

[0008] Preferably, the protective cover is provided with vent holes evenly distributed around its circumference, and the protective cover is connected to the first valve body in the valve body assembly.

[0009] Preferably, the double-layer waterproof and breathable membrane includes a first waterproof and breathable membrane and a second waterproof and breathable membrane, both of which are made of polymer fiber materials; the membrane paper pore size of the second waterproof and breathable membrane is smaller than that of the first waterproof and breathable membrane, resulting in a higher moisture permeability interception rate; both membranes are attached to the first valve body by adhesive bonding or sealing with gaskets.

[0010] Preferably, the valve body assembly includes a first valve body and a second valve body; the first valve body has a hollow structure and is uniformly provided with vent holes; the first valve body, the inlet pressure plate assembly, and the outlet pressure plate assembly are all fitted with small clearance to provide motion guidance; the first valve body and the explosion relief pressure plate assembly are connected as one unit by threads.

[0011] Preferably, the one-way air intake assembly includes an air intake pressure plate assembly, an air intake spring, and a second sealing ring; the second sealing ring is provided between the air intake pressure plate assembly and the first valve body, and when the air intake channel is closed, the pressure of the air intake spring causes the second sealing ring to seal the vent hole of the air intake guide channel.

[0012] Preferably, the one-way air outlet assembly includes an air outlet pressure plate assembly, an air outlet spring, and a third sealing ring; the third sealing ring is provided between the air outlet pressure plate assembly and the second valve body, and when the air outlet channel is closed, the pressure of the air outlet spring causes the third sealing ring to seal the vent hole of the air outlet guide channel.

[0013] Preferably, the second valve body is fixed to the battery pack housing by bolts, and a fourth sealing ring is provided between the second valve body and the housing to achieve sealing; a first sealing ring is provided between the second valve body and the first valve body, and when the explosion relief opening pressure is not reached, the explosion relief spring pressure compresses the first sealing ring to achieve sealing between the first valve body and the second valve body.

[0014] Preferably, the explosion venting assembly includes an explosion venting pressure plate assembly and an explosion venting spring; the explosion venting pressure plate assembly is connected to the second valve body, and the second valve body and the explosion venting pressure plate assembly are fitted with a small clearance to provide motion guidance.

[0015] Preferably, the device also includes a hot gas particulate filter, which is tightly connected to the second valve body by means of interference fit, thread, snap-fit, bonding or welding, and uses a composite high-temperature resistant adsorption filter material.

[0016] Preferably, the device can achieve bidirectional gas balance under the pressure difference between the inside and outside of the shell, and achieve humidity control through the filtration gradient of the double-layer waterproof and breathable membrane; in the event of thermal runaway, it can control the high-temperature particles in the outwardly ejected gas within five minutes, reducing the risk of the gas being ignited by metal sparks.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows: 1. Two-way pressure balance: When a pressure difference occurs between the inside and outside of the casing, it can ensure the flow of gas between the inside and outside, achieve two-way pressure balance, and avoid damage to the sealing of the battery casing due to excessive pressure difference.

[0018] 2. Precise humidity control: During airflow exchange, the air must pass through the first waterproof and breathable membrane and the second waterproof and breathable membrane in sequence. By utilizing the combined filtration gradient of the two membranes to filter the moisture permeability, a two-way balance is achieved while maintaining constant humidity control, avoiding problems such as electrical short circuits and metal corrosion caused by condensation.

[0019] 3. Explosion-proof and smoke-blocking: In the event of thermal runaway, the high-temperature particles in the outward-spraying gas can be controlled within five minutes, reducing the risk of the outward-spraying gas being ignited by metal sparks and effectively protecting personnel safety.

[0020] 4. Waterproof and dustproof: The protective cover, multi-layer seals and waterproof and breathable membrane work together to effectively prevent water and dust from entering the battery system, ensuring a stable battery operating environment. Attached Figure Description

[0021] Figure 1 This is an exploded view of the spring-loaded explosion-proof valve device integrating humidity control, balance, explosion-proof, and smoke-blocking functions of the present invention.

[0022] Figure 2 This is a cross-sectional view of the spring-loaded explosion-proof valve device integrating humidity control, balance, explosion-proof, and smoke-blocking functions of the present invention.

[0023] Figure 3 This is a cross-sectional view of the air intake channel in the open state of the present invention.

[0024] Figure 4 This is a cross-sectional view of the air outlet channel of the present invention in the open state.

[0025] Figure 5 This is a cross-sectional view of the explosion venting channel of the present invention in the open state.

[0026] In the diagram: 1-protective cover, 2-first waterproof and breathable membrane, 3-second waterproof and breathable membrane, 4-first valve body, 5-first sealing ring, 6-second sealing ring, 7-inlet pressure plate assembly, 8-inlet spring, 9-outlet spring, 10-outlet pressure plate assembly, 11-third sealing ring, 12-second valve body, 13-fourth sealing ring, 14-explosion relief spring, 15-explosion relief pressure plate assembly, 16-hot gas particulate filter.

[0027] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 the embodiments of the present invention 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 the present invention.

[0030] This invention provides a spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions, including a protective cover, a first waterproof and breathable membrane, a second waterproof and breathable membrane, a first valve body, a first sealing ring, a second sealing ring, an inlet pressure plate assembly, an inlet spring, an outlet spring, an outlet pressure plate assembly, a third sealing ring, a second valve body, a fourth sealing ring, a venting spring, a venting pressure plate assembly, and a hot gas particulate filter.

[0031] The valve body has multiple channels running axially, including an inlet guide channel, an outlet guide channel, and a venting guide channel. The inlet guide channel is the first guide channel, housing an inlet pressure plate assembly, an inlet spring, a second sealing ring, a first waterproof and breathable membrane, and a second waterproof and breathable membrane; the inlet assembly is located on the inner side of the axial channel. The outlet guide channel is the second guide channel, housing an outlet pressure plate assembly, an outlet spring, a third sealing ring, and a first waterproof and breathable membrane; the inlet assembly is located on the outer side of the axial channel. The venting guide channel is the third guide channel, housing a venting pressure plate assembly, a venting spring, a first valve body, a first sealing ring, and a hot gas particulate filter. A protective cover is provided on the top of the valve body, with a vent hole between the cover and the valve body.

[0032] The protective cover is provided with vent holes evenly distributed around its circumference. The protective cover is tightly connected to the first valve body by interference fit or snap fastening. In this embodiment, interference fit is used.

[0033] The first waterproof and breathable membrane is made of polymer fiber material, possessing excellent oleophobic, hydrophobic, and breathable properties. Liquid water cannot pass through, while water vapor and air molecules can pass freely. The second waterproof and breathable membrane is made of polymer fiber material, with a smaller pore size than the first membrane, resulting in higher filtration precision and superior filtration performance. It has a higher moisture rejection rate compared to the first membrane. Both the first and second waterproof and breathable membranes are attached to the first valve body using adhesive bonding or sealing gaskets.

[0034] The first valve body has a hollow structure with evenly distributed vent holes. An air outlet spring is connected between the first valve body and the air outlet pressure plate assembly. The two are fitted with a small clearance to guide the movement of the air outlet pressure plate assembly. The first valve body and the explosion relief pressure plate assembly are connected as one unit by threads. An air intake spring is connected between the first valve body and the air intake pressure plate assembly. The two are fitted with a small clearance to guide the movement of the air intake pressure plate assembly.

[0035] A second sealing ring is provided between the air intake pressure plate assembly and the first valve body. When the air intake channel is closed, the air vent is sealed under the pressure of the air intake spring. A third sealing ring is provided between the air outlet pressure plate assembly and the second valve body. When the air outlet channel is closed, the air vent is sealed under the pressure of the air outlet spring.

[0036] A venting spring connects the venting pressure plate assembly and the second valve body. The second valve body and the venting pressure plate assembly are fitted with a small clearance to guide the movement of the venting pressure plate assembly. The second valve body is fixed to the battery pack housing by bolts and is sealed to the housing by a fourth sealing ring. A first sealing ring is provided between the second valve body and the first valve body. When the pressure inside the cavity does not reach the venting opening pressure, the first valve body compresses the first sealing ring under the pressure of the venting spring to achieve a seal between the second valve body and the first valve body structure.

[0037] The hot gas particulate filter is tightly connected to the second valve body by interference fit, thread, snap-fit, bonding or welding. It adopts composite high temperature resistant adsorption filter material, which can filter particles generated instantly in thermal runaway events in a short time. It should be noted that the hot gas particulate filter is modular and can be customized according to needs.

[0038] When the air intake guide channel is working, the external airflow enters the valve body through the vent holes around the protective cover, flows through the first waterproof and breathable membrane, and at this time the air outlet pressure plate assembly blocks the vent holes. The airflow must pass through the second waterproof and breathable membrane, and after the humidity is adjusted and controlled by the double-layer membrane paper gradient filtration, it pushes the air intake pressure plate assembly to compress the air intake spring to open the channel, and enters the interior of the housing through the hot gas particle filter.

[0039] When the air outlet guide channel is working, the internal airflow passes through the hot gas particle filter. At this time, the air inlet pressure plate assembly blocks the air vent, and the airflow pushes the air outlet pressure plate assembly to compress the air outlet spring to open the channel. The airflow passes through the air vent of the first valve body, the first waterproof and breathable membrane for filtration, and then through the air vent around the protective cover to the outside.

[0040] The explosion relief guide channel is normally closed. When the gas pressure inside the battery pack housing changes drastically to a level greater than the explosion relief opening pressure, the gas inside the housing passes through the hot gas particle filter and pushes the gas outlet pressure plate assembly and the upper part of the first valve body to open as a whole, achieving large-area rapid smoke filtration and pressure relief.

[0041] like Figure 1-5 As shown, the valve body of this embodiment of the invention has multiple channels running through it along the axial direction, which are divided into: a first guide channel (air inlet guide channel), a second guide channel (air outlet guide channel), and a third guide channel (explosion relief guide channel).

[0042] It should be noted that: I. Structure and assembly relationship of each component: Protective cover 1: It has vent holes evenly distributed around its circumference; the protective cover 1 is tightly connected to the first valve body 4, and the connection method can be interference fit or snap fastener. In this embodiment, interference fit is used; vent holes are left between the protective cover 1 and the valve body to ensure gas flow.

[0043] The first waterproof and breathable membrane 2 is bonded to the first valve body 4 by adhesive bonding or sealing gasket. The first waterproof and breathable membrane 2 is made of high molecular fiber material and has excellent oleophobic, hydrophobic and breathable properties. Liquid water cannot pass through, but water vapor and air molecules can pass through freely.

[0044] The second waterproof and breathable membrane 3 is bonded to the first valve body 4 by adhesive bonding or sealing with a gasket. The second waterproof and breathable membrane 3 is made of high molecular fiber material with smaller membrane paper pore size, higher filtration accuracy, and better filtration performance. It has a higher moisture permeation interception rate than the first waterproof and breathable membrane 2.

[0045] First valve body 4: has a hollow structure and is evenly provided with vent holes; an air outlet spring 9 is connected between the first valve body 4 and the air outlet pressure plate assembly 10; the first valve body 4 and the air outlet pressure plate assembly 10 are fitted with a small clearance to guide the movement of the air outlet pressure plate assembly 10; the first valve body 4 and the explosion relief pressure plate assembly 15 are connected as one unit by threads; an air intake spring 8 is connected between the first valve body 4 and the air intake pressure plate assembly 7; the first valve body 4 and the air intake pressure plate assembly 7 are fitted with a small clearance to guide the movement of the air intake pressure plate assembly 7.

[0046] Second sealing ring 6: A second sealing ring 6 is provided between the air intake pressure plate assembly 7 and the first valve body 4; when the air intake channel is closed, the second sealing ring 6 achieves sealing of the corresponding air vent under the pressure of the air intake spring 8.

[0047] Third sealing ring 11: A third sealing ring 11 is provided between the air outlet pressure plate assembly 10 and the second valve body 12; when the air outlet channel is closed, the third sealing ring 11 achieves sealing of the corresponding air vent under the pressure of the air outlet spring 9.

[0048] Explosion relief spring 14: Explosion relief spring 14 is connected between explosion relief pressure plate assembly 15 and second valve body 12; the second valve body 12 is in close clearance with explosion relief pressure plate assembly 15 to provide guidance for the movement of explosion relief pressure plate assembly 15.

[0049] The second valve body 12 is fixed to the battery pack housing by bolts; the second valve body 12 achieves a seal with the housing through the fourth sealing ring 13; a first sealing ring 5 is provided between the second valve body 12 and the first valve body 4; when the pressure in the cavity does not reach the explosion relief opening pressure, the first valve body 4 compresses the first sealing ring 5 under the pressure of the explosion relief spring 14, thereby achieving a seal between the second valve body 12 and the first valve body 4.

[0050] Hot gas particulate filter 16: It is tightly connected to the second valve body 12. The connection method includes, but is not limited to, interference fit, thread, snap-fit, bonding or welding. The hot gas particulate filter adopts composite high temperature resistant adsorption filter material, which can filter the particles generated instantly in a thermal runaway event in a short time and reduce the risk of externally injected gas being ignited by metal sparks.

[0051] II. Structural Description of Each Guide Channel: The air intake guide channel (first guide channel) runs through the inner side of the axial direction and is internally equipped with: air intake pressure plate assembly 7, air intake spring 8, second sealing ring 6, first waterproof and breathable membrane 2, and second waterproof and breathable membrane 3.

[0052] The air outlet guide channel (second guide channel) runs through the outer channel along the axial direction and is internally equipped with: air outlet pressure plate assembly 10, air outlet spring 9, third sealing ring 11, and first waterproof and breathable membrane 2.

[0053] The explosion relief guide channel (third guide channel) is internally equipped with: explosion relief pressure plate assembly 15, explosion relief spring 14, first valve body 4, first sealing ring 5, and hot gas particulate filter 16.

[0054] III. Operating process of the device.

[0055] 1. Working process of the intake guide channel: External airflow enters the valve body through the vents around the protective cover 1 and flows through the first waterproof and breathable membrane 2. At this time, the air outlet pressure plate assembly 10 blocks the corresponding vent, and the airflow must flow through the second waterproof and breathable membrane 3. After the external airflow passes through the double-layer membrane paper gradient filter to regulate humidity and control moisture, it enters the interior and pushes the air inlet pressure plate assembly 7 to compress the air inlet spring 8, opening the corresponding vent in the channel, and enters the interior of the housing through the hot gas particle filter 16.

[0056] 2. Working process of the exhaust guide channel: The internal airflow passes through the hot gas particle filter 16; at this time, the air inlet pressure plate assembly 7 blocks the corresponding vent hole, and the airflow pushes the air outlet pressure plate assembly 10 to compress the air outlet spring 9, opening the channel corresponding to the vent hole; the airflow passes through the corresponding vent hole and the first waterproof and breathable membrane 2 for filtration, and then passes through the vent holes around the protective cover 1 to the outside.

[0057] 3. Working process of the explosion relief guide channel: The explosion relief guide channel is normally closed. In the event of thermal runaway or a sudden change in internal gas pressure of the battery pack housing that exceeds the explosion relief opening pressure, the gas inside the housing passes through the hot gas particulate filter 16, which pushes the outlet pressure plate assembly 10 and the upper part of the first valve body 4 to open as a whole, achieving large-area rapid smoke filtration and pressure relief.

[0058] This embodiment can ensure the flow of gas inside and outside the shell when there is a pressure difference between the inside and outside of the shell, and achieve bidirectional balance. When the airflow is exchanged, it passes through the first waterproof and breathable membrane and the second waterproof and breathable membrane. The combination of the two membranes and the filtration gradient of the moisture permeability achieves the function of bidirectional balance but always controlling the humidity. At the same time, it can achieve the function of explosion-proof and smoke blocking. It can control the high-temperature particles in the outwardly ejected gas within five minutes of thermal runaway, reduce the risk of the gas being ignited by metal sparks, and protect personnel safety.

[0059] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A spring-loaded explosion-proof valve device integrating humidity control, balance, explosion-proof, and smoke-blocking functions, characterized in that, Includes a protective cover, valve body assembly, double-layer waterproof and breathable membrane, one-way air pressure assembly, and explosion relief assembly; The valve body assembly has multiple axially continuous guide channels, including an air inlet guide channel, an air outlet guide channel, and an explosion venting guide channel. The air inlet guide channel is equipped with a one-way air inlet component and a double-layer waterproof and breathable membrane. The air outlet guide channel is equipped with a one-way air outlet component and a waterproof and breathable membrane. The explosion venting guide channel is equipped with an explosion venting component. The protective cover is located on the top of the valve body assembly, and a vent hole is provided between the protective cover and the valve body assembly.

2. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 1, characterized in that, The protective cover is provided with vent holes evenly distributed around its circumference, and the protective cover is connected to the first valve body in the valve body assembly.

3. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 1, characterized in that, The double-layer waterproof and breathable membrane includes a first waterproof and breathable membrane and a second waterproof and breathable membrane, both of which are made of polymer fiber materials; the membrane paper pore size of the second waterproof and breathable membrane is smaller than that of the first waterproof and breathable membrane, resulting in a higher moisture permeability interception rate; both membranes are attached to the first valve body by adhesive bonding or sealing with gaskets.

4. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 1, characterized in that, The valve body assembly includes a first valve body and a second valve body; the first valve body is a hollow structure and is uniformly provided with vent holes. The first valve body, the inlet pressure plate assembly, and the outlet pressure plate assembly are all fitted with small clearance to provide motion guidance. The first valve body and the explosion relief pressure plate assembly are connected as one unit by threads.

5. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 1, characterized in that, The one-way air intake assembly includes an air intake pressure plate assembly, an air intake spring, and a second sealing ring; a second sealing ring is provided between the air intake pressure plate assembly and the first valve body. When the air intake channel is closed, the pressure of the air intake spring causes the second sealing ring to seal the vent hole of the air intake guide channel.

6. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 1, characterized in that, The one-way air outlet assembly includes an air outlet pressure plate assembly, an air outlet spring, and a third sealing ring; a third sealing ring is provided between the air outlet pressure plate assembly and the second valve body. When the air outlet channel is closed, the pressure of the air outlet spring causes the third sealing ring to seal the vent hole of the air outlet guide channel.

7. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 4, characterized in that, The second valve body is fixed to the battery pack housing by bolts. A fourth sealing ring is provided between the second valve body and the housing to achieve a seal. A first sealing ring is provided between the second valve body and the first valve body. When the explosion relief opening pressure is not reached, the explosion relief spring pressure compresses the first sealing ring to achieve a seal between the first valve body and the second valve body.

8. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 1, characterized in that, The explosion relief assembly includes an explosion relief pressure plate assembly and an explosion relief spring; the explosion relief spring is connected between the explosion relief pressure plate assembly and the second valve body, and the second valve body and the explosion relief pressure plate assembly are fitted with a small clearance to provide motion guidance.

9. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 4, characterized in that, It also includes the aforementioned hot gas particulate filter, which is tightly connected to the second valve body by means of interference fit, thread, snap, bonding or welding, and adopts composite high temperature resistant adsorption filter material.

10. The spring-loaded explosion-proof valve device with integrated humidity control, balance, explosion-proof, and smoke-blocking functions according to claim 1, characterized in that, The device can achieve bidirectional gas balance under the pressure difference between the inside and outside of the shell, and achieve humidity control through the filtration gradient of the double-layer waterproof and breathable membrane; in the event of thermal runaway, it can control the high-temperature particles in the outward ejected gas within five minutes, reducing the risk of the gas being ignited by metal sparks.

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