Temperature-sensitive waterproof ventilation valve top cover structure, battery and electronic equipment

By designing a temperature-sensitive, waterproof, and breathable valve top cover structure, the problem of decreased battery sealing under high-temperature environments was solved, achieving durability and safety in complex environments and ensuring reliable operation of the battery system.

CN223858257UActive Publication Date: 2026-01-30HUIZHOU KEDALI PRECISION IND CO LTD
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Patent Information

Application Number
CN202423116248.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-01-30
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing temperature-sensitive valve covers lose their sealing performance in high-temperature environments, leading to leakage of internal battery liquid or intrusion of external harmful substances, affecting the normal operation and lifespan of the battery.

Method used

Design a temperature-sensitive waterproof and breathable valve top cover structure, including a cover plate, a temperature-sensitive component, a waterproof and breathable valve, and a rubber ring. It is installed by welding, using waterproof and breathable materials to build a robust barrier, monitor temperature changes and activate a safety mechanism to prevent overheating, while maintaining gas flow and internal and external air pressure balance.

Benefits of technology

It effectively prevents the intrusion of external moisture and liquids, maintains unobstructed gas flow, enhances sealing performance, extends service life, reduces losses caused by mechanical friction and vibration, and ensures the reliable operation of the battery system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a temperature-sensitive waterproof ventilation valve top cover structure, a battery and electronic equipment, the temperature-sensitive waterproof ventilation valve top cover structure comprises a cover plate, a temperature-sensitive piece and a waterproof ventilation valve, the cover plate is connected with one side, provided with a pole, of the battery, and the cover plate is provided with an air outlet; the temperature-sensitive part is made of a temperature-sensitive material and connected with the cover plate, and the temperature-sensitive part is arranged at the air outlet; the waterproof ventilation valve is arranged at the air outlet, covers the temperature-sensitive part and comprises a ventilation valve base body welded to the air outlet, a waterproof ventilation part arranged on the ventilation valve base body and a rubber ring for fixing the waterproof ventilation part to the ventilation valve base body, and the waterproof ventilation part is made of waterproof ventilation materials. The utility model provides a temperature-sensitive waterproof ventilation valve top cover structure, a battery and electronic equipment, which are designed for improving the durability and the safety of the battery in a complex environment and ensuring the reliable operation of a battery system.
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Description

Technical Field

[0001] This utility model relates to the field of batteries, and more specifically, to a temperature-sensitive waterproof and breathable valve top cover structure, a battery, and electronic equipment. Background Technology

[0002] Existing temperature-sensitive valve cover plates have indeed revealed some significant problems when facing the challenges of high-temperature environments. High temperatures can accelerate the aging of sealing materials, especially under sustained high temperatures. Conventional sealing structures may experience a decrease in sealing performance due to material softening or deformation, leading to leakage of internal battery fluids or intrusion of harmful external substances. This can severely affect the normal operation of the battery and even shorten its lifespan. This issue highlights the severe challenges faced by existing temperature-sensitive valve cover plate designs under high-temperature conditions, urgently requiring innovative technologies to overcome these limitations and ensure the safe and reliable operation of battery systems under harsh conditions. Utility Model Content

[0003] In view of this, the present invention provides a temperature-sensitive waterproof and breathable valve top cover structure, which is designed to improve the durability and safety of the battery in complex environments and ensure the reliable operation of the battery system.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A temperature-sensitive waterproof and breathable valve top cover structure includes a cover plate, a temperature-sensitive element, and a waterproof and breathable valve. The cover plate is connected to the side of the battery with the terminal post, and the cover plate has an air outlet. The temperature-sensitive element is made of a temperature-sensitive material and is connected to the cover plate, and the temperature-sensitive element is located at the air outlet. The waterproof and breathable valve is located at the air outlet and covers the temperature-sensitive element, including a breathable valve base welded to the air outlet, a waterproof and breathable element disposed on the breathable valve base, and a rubber ring fixing the waterproof and breathable element to the breathable valve base. The waterproof and breathable element is made of a waterproof and breathable material.

[0006] The novel temperature-sensitive waterproof and breathable valve top cover structure is a groundbreaking technological innovation, specifically designed to enhance the durability and safety of batteries in complex environments, aiming to ensure the reliable operation of the battery system. A temperature-sensitive element monitors changes in the battery's ambient temperature; upon detecting an abnormal temperature rise, it responds rapidly, activating a preset safety mechanism to prevent safety hazards caused by overheating. The specially designed waterproof and breathable valve, located at the vent and tightly attached to the temperature-sensitive element, not only maintains unobstructed gas flow but also utilizes waterproof and breathable materials to construct a robust barrier, effectively preventing the intrusion of external moisture and liquids. Simultaneously, it regulates the internal and external air pressure balance, ensuring stable operation of the temperature-sensitive element and improving its durability under complex operating conditions. This effectively prevents internal moisture or liquid leakage during long-term use. Furthermore, the waterproof and breathable valve is securely installed via welding, further enhancing its sealing performance.

[0007] Preferably, the vent valve base is provided with a through-hole, and the waterproof and ventilated component blocks the through-hole to prevent liquid from passing through the through-hole.

[0008] The through-hole is used to guide the smooth flow of gas, while the waterproof and breathable parts effectively isolate liquid intrusion, maintaining the balance of internal and external air pressure without losing its sealing properties, and protecting the core components from corrosion or short circuit threats.

[0009] Preferably, a first stepped groove is provided at the lower part of the through-hole, the waterproof and breathable component is placed in the first stepped groove, a second stepped groove is provided at the lower part of the first stepped groove, and the rubber ring is placed in the second stepped groove.

[0010] The first and second stepped grooves added below the through-hole form a multi-layered protection system. The first stepped groove supports the waterproof and breathable component, while the second stepped groove houses the rubber ring, together creating a more airtight seal. By placing the rubber ring in layers within the second stepped groove, an additional sealing layer is added, significantly improving the overall sealing performance of the waterproof and breathable valve. The dual protection of the rubber ring and the waterproof and breathable component, combined with welding technology, not only strengthens the adhesion between components but also extends the service life of the waterproof and breathable valve. Even under harsh operating conditions, it maintains a good sealing condition, reducing the impact of aging or wear and ensuring long-term equipment safety.

[0011] Preferably, the rubber ring is located between the vent valve base and the temperature-sensitive element.

[0012] The rubber ring positioned between the vent valve base and the temperature-sensitive element plays a crucial connecting role. It not only provides an additional sealing barrier but also forms a buffer zone between them, helping to absorb vibration and stress and increasing the compatibility and stability between components. By embedding the rubber ring at key points, the sealing effect of the entire system is significantly enhanced, especially at the contact surface between the temperature-sensitive element and the vent valve base, ensuring a tight bond between the two, preventing any form of air leakage or seepage, maintaining isolation between the internal and external environments, and providing ultimate protection for internal components. The presence of the rubber ring makes the interaction between the temperature-sensitive element and the vent valve base smoother, reducing wear caused by mechanical friction, helping to extend the service life of the device, and also reducing the risk of structural loosening due to vibration, maintaining the continuity and reliability of system operation.

[0013] Preferably, the temperature-sensitive element is bonded to the metal sheet, and the metal sheet is connected to the through-hole by a sealing ring.

[0014] The metal sheet closely adheres to the temperature-sensitive element, serving as an important intermediary for its contact with the through hole. It not only facilitates the effective transfer of heat but also provides good support for the temperature-sensitive element. The metal sheet, with its excellent heat-conducting properties, quickly responds to changes in environmental temperature, ensuring that the temperature-sensitive element reacts quickly and accurately and adjusts the heat dissipation strategy in a timely manner to avoid overheating and improve the overall working efficiency and safety of the battery. The metal sheet is closely connected to the through hole through the sealing ring, forming a continuous protection chain that not only enhances the positioning accuracy of the temperature-sensitive element but also effectively disperses external force impacts, reducing the probability of local damage and ensuring stability throughout the entire operating cycle.

[0015] Preferably, the upper part of the air outlet is provided with an air outlet stepped groove, and the temperature-sensitive element, the metal sheet, and the sealing ring are arranged in the air outlet stepped groove.

[0016] The introduction of the stepped groove achieves the orderly arrangement and close cooperation of the temperature-sensitive element, the metal sheet, and the sealing ring, saving valuable space and ensuring the independent execution of each function, such as the sealing ring providing additional sealing without occupying additional volume and improving the overall structural integrity.

[0017] Preferably, the cover plate is provided with a cavity, the through hole is located above the cavity, and a communication hole communicating with the inside of the battery is arranged below the cavity.

[0018] The cavity is arranged inside the cover plate, directly below the through hole, and is closely connected to the inside of the battery through the communication hole, ensuring that the internal gas can smoothly enter and exit the communication hole, and providing a direct channel for the cavity to interact with the inside of the battery. The existence of the cavity enhances the flowability of the internal gas, allowing the generated gas (such as hydrogen and oxygen) during the charging and discharging process of the battery to collect in the cavity through the communication hole and then be discharged to the outside through the through hole. This not only speeds up the exhaust speed of the internal waste gas but also avoids the risk of gas pressure accumulation, ensuring that the battery system is always in an ideal working state. With the assistance of the cavity, the heat generated inside the battery can be exchanged with the flowing air in the cavity through the communication hole, accelerating heat dissipation, effectively reducing the temperature of the battery core, preventing overheating, and prolonging the service life of the battery. As an additional buffer zone, the cavity can alleviate the sudden increase in internal pressure of the battery to some extent, especially in the event of a severe impact or unexpected situation. The cavity can serve as a temporary pressure relief chamber to slow down the speed of high-pressure gas rushing out and reduce the possibility of explosion, providing users with an additional layer of safety protection.

[0019] A battery comprising the temperature-sensitive waterproof and breathable valve top cover structure as described above.

[0020] An electronic device comprising the battery as described above.

[0021] The utility model discloses a beneficial effect compared with prior art is:

[0022] The utility model discloses a temperature -sensitive waterproof breather valve top cap structure is a breakthrough technical innovation, specially designed for the improvement battery in complex environment's durability and safety, and it aims at ensuring the reliable operation of battery system. When detecting abnormal heating, the temperature change of battery environment is monitored through temperature -sensitive piece, and the preset safety mechanism is started in rapid response, and the security hidden danger of overheating is prevented. The waterproof breather valve of special design is located at the air outlet and is close to temperature -sensitive piece, not only keep gas flow unobstructed, but also utilize waterproof breather material to build solid barrier, effectively prevent outside moisture and liquid invasion, adjust internal and external air pressure balance simultaneously, guarantee temperature -sensitive piece stable operation, improve temperature -sensitive piece's durability under complex working condition, can effectively avoid the occurrence of internal moisture or liquid leakage phenomenon of temperature -sensitive piece in the long -term use. In addition, waterproof breather valve is stably installed through the welding mode, and further enhances the sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0024] Figure 1 It is the cross-sectional view of the temperature -sensitive waterproof breather valve top cap structure of the utility model one embodiment.

[0025] Figure 2 It is the top view of the temperature -sensitive waterproof breather valve top cap structure of the utility model one embodiment. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantage of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application, and the technical scheme in the embodiments of the present application is clearly and completely described, obviously, the described embodiments are the part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled person in the art without making creative labor are within the scope of the present application.

[0028] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] The technical solutions in the present application will be described below with reference to the drawings.

[0031] The present embodiment provides a temperature-sensitive waterproof and breathable valve top cover structure, which comprises a cover plate 100, a temperature-sensitive part 200 and a waterproof and breathable valve 300. The cover plate 100 is connected to one side of the battery provided with a pole 001, and the cover plate 100 is provided with an air outlet 110. The temperature-sensitive part 200 is made of temperature-sensitive material and is connected to the cover plate 100, and the temperature-sensitive part 200 is arranged at the air outlet 110. The waterproof and breathable valve 300 is arranged at the air outlet 110 and covers the temperature-sensitive part 200, and comprises a breathable valve base body 310 welded with the air outlet 110, a waterproof and breathable part 320 arranged on the breathable valve base body 310, and a rubber ring 330 for fixing the waterproof and breathable part 320 to the breathable valve base body 310. The waterproof and breathable part 320 is made of waterproof and breathable material.

[0032] The novel temperature-sensitive waterproof and breathable valve 300 top cover structure is a breakthrough technical innovation designed to improve the durability and safety of the battery in complex environments, aiming to ensure the reliable operation of the battery system. The temperature-sensitive part 200 monitors the temperature changes of the battery environment, and when an abnormal temperature rise is detected, it quickly responds and starts the preset safety mechanism to prevent safety hazards caused by overheating. The specially designed waterproof and breathable valve 300 is located at the air outlet 110 and closely adheres to the temperature-sensitive part 200, not only maintaining smooth gas flow, but also using waterproof and breathable materials to build a strong barrier to effectively prevent external moisture and liquid intrusion, while adjusting the internal and external air pressure balance to ensure the stable operation of the temperature-sensitive part 200, improving the durability of the temperature-sensitive part 200 in complex working conditions, and effectively preventing the occurrence of internal moisture or liquid leakage of the temperature-sensitive part 200 during long-term use. In addition, the waterproof and breathable valve 300 is stably installed by welding, further enhancing the sealing performance.

[0033] In this embodiment, the air vent valve base 310 is provided with a through hole 311, and the waterproof air vent 320 is blocked in the through hole 311 to prevent liquid from passing through the through hole 311.

[0034] The through hole 311 is used to guide the smooth flow of gas, and the liquid intrusion is effectively isolated by the waterproof air vent 320, maintaining the balance of internal and external air pressure without losing its sealing properties, protecting the core components from corrosion or short circuit threats.

[0035] In this embodiment, the lower part of the through hole 311 is provided with a first stepped groove 312, and the waterproof air vent 320 is placed in the first stepped groove 312. The lower part of the first stepped groove 312 is provided with a second stepped groove 313, and the rubber ring 330 is placed in the second stepped groove 313.

[0036] The first stepped groove 312 and the second stepped groove 313 added below the through hole 311 constitute a multi-protection system, in which the first stepped groove 312 supports the waterproof air vent 320, and the second stepped groove 313 places the rubber ring 330, which together build a more closed space. By placing the rubber ring 330 in the second stepped groove 313 in layers, an additional sealing layer is added, greatly improving the overall sealing performance of the waterproof air vent valve 300. The double protection of the rubber ring 330 and the waterproof air vent 320, combined with the application of welding technology, not only strengthens the adhesion between components, but also prolongs the service life of the waterproof air vent valve 300. Even under harsh working conditions, it can still maintain good sealing state, reduce the influence of aging or wear and tear, and protect the safety of the equipment for a long time.

[0037] In this embodiment, the rubber ring 330 is located between the air vent valve base 310 and the temperature-sensitive element 200.

[0038] The rubber ring 330 between the air vent valve base 310 and the temperature-sensitive element 200 plays an important role in connection, not only providing an additional sealing barrier, but also forming a buffer area between the two, which helps to absorb shocks and stresses, increasing the compatibility and stability between components. By implanting the rubber ring 330 at the key node, the sealing effect of the entire system is significantly enhanced, especially at the contact surface of the temperature-sensitive element 200 and the air vent valve base 310, ensuring their close combination and preventing any form of air leakage or liquid seepage, maintaining the isolation of the internal and external environment and providing extreme protection for the internal components. The existence of the rubber ring 330 makes the interaction between the temperature-sensitive element 200 and the air vent valve base 310 smoother, reducing the wear and tear caused by mechanical friction, helping to prolong the service life of the device, while also reducing the risk of structural loosening caused by vibration, maintaining the continuity and reliability of the system operation.

[0039] In this embodiment, the temperature-sensitive element 200 is attached to the metal sheet 210, and the metal sheet 210 is connected to the through hole 311 through the sealing ring 220.

[0040] The metal sheet 210 closely adheres to the temperature-sensitive piece 200, becoming an important intermediary for its indirect contact with the through hole 311, not only promoting the effective transfer of heat, but also playing a good supporting role for the temperature-sensitive piece 200. The metal sheet 210, with its excellent heat conduction performance, quickly senses changes in the ambient temperature, ensuring that the temperature-sensitive piece 200 reacts quickly and accurately, timely adjusts the heat dissipation strategy, avoids overheating, and improves the overall working efficiency and safety of the battery.

[0041] In this embodiment, the upper part of the air outlet 110 is provided with an air outlet stepped groove 111, and the temperature-sensitive piece 200, the metal sheet 210, and the sealing ring 220 are arranged in the air outlet stepped groove 111.

[0042] Through the introduction of the stepped groove, the temperature-sensitive piece 200, the metal sheet 210, and the sealing ring 220 are arranged in order and closely matched, not only saving valuable space, but also ensuring the independent execution of each function, such as the sealing ring 220 providing additional sealing without occupying additional volume, improving the overall structural integrity.

[0043] In this embodiment, the cover plate 100 is provided with a cavity 120, and the through hole 311 is located above the cavity 120. The lower part of the cavity 120 is provided with a communication hole 121 communicating with the inside of the battery.

[0044] The cavity 120 is arranged inside the cover plate 100, directly below the through hole 311, and is closely associated with the inside of the battery through the communication hole 121, ensuring that the internal gas can smoothly enter and exit the communication hole 121, and providing a direct channel for the cavity 120 to interact with the inside of the battery. The existence of the cavity 120 enhances the flowability of the internal gas, allowing the gas generated during the charging and discharging process of the battery (such as hydrogen and oxygen) to flow into the cavity 120 through the communication hole 121, and then be discharged to the outside through the through hole 311. This not only speeds up the exhaust speed of the internal exhaust gas, but also avoids the risk of gas pressure accumulation, ensuring that the battery system is always in an ideal working state. With the assistance of the cavity 120, the heat generated inside the battery can be exchanged with the flowing air in the cavity 120 through the communication hole 121, accelerating heat dissipation, especially during the charging stage or high-load operation, effectively reducing the temperature of the battery core, preventing overheating, and prolonging the service life of the battery. As an additional buffer zone, the cavity 120 can alleviate the sudden increase in internal pressure of the battery to a certain extent, especially in the event of a severe impact or unexpected situation, the cavity 120 can serve as a temporary pressure relief chamber to slow down the speed of high-pressure gas rushing out, reducing the possibility of explosion, and providing users with an additional layer of safety protection.

[0045] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A temperature-sensitive waterproof and air-permeable valve top cover structure, characterized in that, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

2. The temperature-sensitive, waterproof, and breathable valve cap structure of claim 1, wherein, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

3. The temperature-sensitive, waterproof, and breathable valve cap structure of claim 2, wherein, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

4. The temperature-sensitive waterproof and breathable valve cap structure of claim 3, wherein, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

5. The temperature sensitive waterproof and breathable valve cap structure of claim 1, wherein, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

6. The temperature-sensitive waterproof and breathable valve cap structure of claim 5, wherein, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

7. The temperature-sensitive, waterproof, and breathable valve cap structure of claim 6, wherein, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

8. The temperature-sensitive, waterproof, and breathable valve cap structure of claim 2, wherein, The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

9. A battery, characterized by The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery.

10. An electronic device, comprising: The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top cover structure of a battery. The application relates to a temperature-sensitive waterproof and air-permeable valve top