Valve, battery and electric equipment

Abstract

The utility model discloses a valve, a battery and electric equipment. The valve comprises a valve body, a valve bonnet and a blocking piece. The valve body is provided with a through hole and a mounting part surrounding the through hole. The valve cap is arranged on the mounting part and covers the through hole; the blocking piece is at least partially arranged between the valve body and the valve bonnet. The blocking piece can seal the gap between the valve body and the valve bonnet, the gap between the valve body and the valve bonnet is located on the outer side of the installation part, and the direction of an opening of the gap is the direction from the inner wall of the installation part to the outer wall of the installation part and is not parallel to the moving direction of the valve bonnet or even perpendicular to the moving direction of the valve bonnet. Thus, the blocking piece can prevent external impurities from entering the gap, the valve can reduce the possibility that the external impurities enter the gap through the blocking piece, even if the external impurities enter the gap, the impurities cannot prevent the valve bonnet from moving in the moving direction, and under the condition that the internal air pressure of the battery is larger than a specified value, the valve bonnet can move smoothly all the time; therefore, the valve can exhaust normally all the time.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and more specifically, to a valve, a battery and an electrical device. Background Art

[0002] At present, batteries are usually equipped with explosion-proof and ventilated valves. The valves include a valve body and a valve bonnet. There is a gap between the valve body and the valve bonnet. When the battery is in a high temperature and high pressure state, the valve bonnet separates from the valve body to connect the internal space of the valve with the outside world, thereby completing the exhaust. During use, there are many impurities in the external environment. If impurities enter the gap, it may affect the movement of the valve bonnet, thereby affecting the exhaust of the valve. Therefore, how to design the valve so that the valve can still be exhausted smoothly when it comes into contact with impurities in the external environment has become an urgent problem to be solved. Utility Model Content

[0003] Embodiments of the present application provide a valve, a battery, and an electrical device.

[0004] The valve provided in the embodiment of the present application comprises a valve body, a valve bonnet and a blocking member, wherein the valve body is provided with a through hole and a mounting portion surrounding the through hole. The valve bonnet is arranged on the mounting portion and covers the through hole. The blocking member is at least partially arranged between the valve body and the valve bonnet.

[0005] In some embodiments, the valve bonnet includes a main body and an extension portion, the extension portion is sleeved on the outer wall of the mounting portion, a surface of the main body and a surface of the extension portion are arranged at an angle, and the blocking member is at least partially arranged between the extension portion and the mounting portion.

[0006] In some embodiments, the extension portion includes a first extension portion and a second extension portion, the first extension portion is located between the second extension portion and the main body portion, the second extension portion is sleeved on the outer wall of the mounting portion, and the blocking member is at least partially disposed between the second extension portion and the mounting portion.

[0007] In some embodiments, the mounting portion is annular, and a radius of the mounting portion gradually decreases in a direction away from the through hole.

[0008] In some embodiments, the blocking member is annular and is sleeved on the outer wall of the mounting portion.

[0009] In certain embodiments, the barrier comprises a gas permeable portion through which gas passes through the barrier.

[0010] In some embodiments, the valve body includes a seat body and a connecting portion that are connected to each other, the mounting portion is arranged on the seat body, the mounting portion forms a mounting groove, the through hole passes through the bottom wall of the mounting groove and the connecting portion, and the valve also includes a movable component, the movable component is arranged in the through hole and supported on the bottom wall of the mounting groove.

[0011] In some embodiments, the seat body includes a connecting platform, the connecting platform is provided with a first through hole and a second through hole, the first through hole and the second through hole are both connected to the through hole; the movable component includes a pressure cover, a breathable membrane, a guide rod and an elastic member, the pressure cover is carried on the bottom wall of the mounting groove and covers the through hole and the first through hole, the breathable membrane is installed on the pressure cover, the guide rod passes through the second through hole and is connected to the pressure cover, the elastic member surrounds the guide rod, and the opposite ends of the elastic member are respectively abutted against the guide rod and the connecting platform, the guide rod also includes a through hole, and the end of the through hole facing the valve cap is connected to the through hole.

[0012] In some embodiments, the valve bonnet is connected to the gland so that the valve bonnet is driven to separate from the mounting portion when the gland opens the valve.

[0013] In some embodiments, the valve cap further includes a third extension portion, the third extension portion is arranged around the outer edge of the gland and forms an air permeable space, and the third extension portion is provided with an air permeable hole to connect the air permeable space with the outside.

[0014] In some embodiments, the valve also includes a flow control member, which is accommodated in the through hole. The flow control member is provided with a flow control portion, and the flow control portion includes a first opening and a second opening relative to each other, and the second opening is located between the first opening and an end of the through hole facing away from the valve cap, and in a plane perpendicular to the axial direction of the valve body, the projected area of ​​the first opening and the projected area of ​​the second opening are not equal.

[0015] In some embodiments, the bottom wall of the mounting groove is further provided with a receiving groove, the receiving groove surrounds the through hole, and the valve further includes a first sealing member, the first sealing member is provided in the receiving groove and abuts against the side wall of the shell and the pressure cover.

[0016] In some embodiments, the valve further includes a protective member, and the protective member is covered on the outer periphery of the seat body.

[0017] The battery provided in the embodiment of the present application comprises a housing, a battery cell and the valve described in any of the above embodiments, wherein the housing is provided with a receiving cavity, the battery cell is received in the receiving cavity, the valve is installed in the housing, and the through hole communicates with the receiving cavity.

[0018] In some embodiments, the side wall of the shell includes a receiving hole, the valve body includes a seat body and a connecting portion, and the connecting portion is connected to the receiving hole; the seat body is provided with a receiving groove arranged around the receiving hole at one end facing the shell, and the valve also includes a second sealing member, which is installed in the receiving groove and abuts between the seat body and the receiving groove.

[0019] The present application also provides an electric device, the electric device comprising an electric device and a battery as described in any one of the above embodiments. The electric device is electrically connected to the battery.

[0020] In the valve, battery and electrical equipment of the present application, the valve cap is arranged on the mounting portion and covers the through hole, and the blocking member is at least partially arranged in the gap between the valve body and the valve cap, so that the blocking member can prevent foreign impurities from entering the gap, thereby reducing the possibility of foreign impurities entering the valve body. At the same time, the gap between the valve body and the valve cap is located outside the mounting portion, and the direction of the opening of the gap is along the inner wall of the mounting portion toward the outer wall of the mounting portion, which is not parallel to the moving direction of the valve cap, and is even perpendicular to the moving direction of the valve cap. In this way, the valve can use the blocking member to reduce the possibility of foreign impurities entering the gap. Even if foreign impurities enter the gap, the impurities will not hinder the valve cap from moving along the moving direction. When the internal air pressure of the battery is greater than the specified value, the valve cap can always move smoothly, thereby ensuring that the valve can always be exhausted normally. At the same time, the valve of the present application has a simple structure and is easy to install, which is conducive to production and installation.

[0021] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a three-dimensional schematic diagram of a battery according to certain embodiments of the present application;

[0024] Figure 2 yes Figure 1 A schematic cross-sectional view of a partial structure of a battery shown;

[0025] Figure 3 is a three-dimensional schematic diagram of a valve according to certain embodiments of the present application;

[0026] Figure 4 yes Figure 3 A schematic cross-sectional view of the valve shown;

[0027] Figure 5 yes Figure 3 An exploded schematic diagram of the valve shown;

[0028] Figure 6 is a three-dimensional schematic diagram of valves in other embodiments of the present application;

[0029] Figure 7 yes Figure 6 A schematic top view of a valve body and a valve bonnet of the valve shown;

[0030] Figure 8 It is a schematic diagram of the structure of electrical equipment in certain embodiments of the present application.

[0031] Description of main component symbols:

[0032] 1000. Electrical equipment;

[0033] 100. Battery; 300. Electrical device;

[0034] 10. Shell; 11. Receiving chamber; 13. Side wall; 131. Receiving hole; 20. Battery cell; 30. Valve;

[0035] 31, valve body; 311, through hole; 312, mounting portion; 313, seat body; 3131, connecting platform; 31311, first through hole; 31312, second through hole; 314, connecting portion; 315, mounting groove; 316, receiving groove; 317, receiving groove;

[0036] 32, valve cap; 321, body; 322, extension; 3221, first extension; 3222, second extension; 323, third extension; 3230, air permeable space; 3231, air hole;

[0037] 33. Blocking member; 34. Movable assembly; 341. Pressure cover; 342. Breathable membrane; 343. Guide rod; 3431. Through hole; 3432. First end of guide rod 343; 3433. Second end of guide rod 343; 344. Elastic member; 3441. First end of elastic member 344; 3442. Second end of elastic member 344; 345. First pressure ring; 35. Flow control member; 351. Flow control portion; 3511. First opening; 3512. Second opening; 36. Second pressure ring; 37. First sealing member; 38. Protective member; 39. Second sealing member. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0039] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In an example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection, or they can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0041] In the embodiments of the present application, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] See also Figure 1 The battery 100 provided in the embodiment of the present application includes a housing 10 , a battery cell 20 and a valve 30 . The housing 10 is provided with a receiving cavity 11 , and the battery cell 20 is received in the receiving cavity 11 . The valve 30 is installed on the housing 10 .

[0043] Specifically, the housing 10 is a structure having a cavity (ie, a receiving cavity 11 ) for receiving other components, and the battery cell 20 is received in the receiving cavity 11 .

[0044] The battery cell 20 is a device for energy conversion and storage, which can convert chemical energy or physical energy into electrical energy. In the battery 100, there can be multiple battery cells 20, and the multiple battery cells 20 can be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the shell 10; of course, the battery 100 can also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in mixed connection, and the multiple battery modules are then connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the shell 10. The battery 100 may also include other structures. For example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0045] When the battery cell 20 is working, high temperature may be generated, which may cause the pressure of the gas in the receiving chamber 11 to increase.

[0046] Please combine Figure 3 and Figure 4 The valve 30 includes a valve body 31, a valve bonnet 32 ​​and a blocking member 33. The valve body 31 is provided with a through hole 311 and a mounting portion 312 surrounding the through hole 311, and the valve bonnet 32 ​​is disposed on the mounting portion 312 and covers the through hole 311. The blocking member 33 is at least partially disposed between the valve body 31 and the valve bonnet 32.

[0047] Specifically, the valve 30 is a safety valve with explosion-proof and ventilating functions. When the internal air pressure of the battery 100 is too high, the valve 30 can activate the active and passive discharge functions, and open the valve 30 to exhaust air, thereby ensuring the safety of the battery 100 and providing guarantee for the stable and reliable operation of the battery 100 system. The valve 30 is installed on the housing 10, and the through hole 311 can connect the receiving cavity 11 and the external space.

[0048] The valve body 31 is provided with a through hole 311, which is connected to the receiving chamber 11 of the battery 100, so that the gas in the receiving chamber 11 can flow to the outside of the valve 30 through the through hole 311, and then flow to the outside of the battery 100. Correspondingly, the gas outside the battery 100 can flow to the valve 30 through the through hole 311, and then flow to the inside of the receiving chamber 11, so as to facilitate the balance of the internal and external air pressures of the battery 100. The valve body 31 is also provided with a mounting portion 312 surrounding the through hole 311. The mounting portion 312 can have a variety of shapes. In one embodiment, there is one mounting portion 312, and the mounting portion 312 is annular to surround the through hole 311; in another embodiment, there are multiple mounting portions 312, and the multiple mounting portions 312 are spaced and distributed around the through hole 311.

[0049] The mounting portion 312 includes an inner wall and an outer wall facing each other, and the inner wall is located on the side where the through hole 311 is located. The valve bonnet 32 ​​is disposed on the mounting portion 312 and covers the outer wall of the mounting portion 312, so that the valve bonnet 32 ​​can cover the through hole 311. In other embodiments, the valve bonnet 32 ​​can also cover the mounting portion 312. For example, a clamping block can be provided in the area of ​​the valve 30 located outside the mounting portion 312, and the valve bonnet 32 ​​can be located between the clamping block and the mounting portion 312 to clamp the valve 30 and the valve bonnet 32, so as to ensure that the valve bonnet 32 ​​can cover the through hole 311 and the mounting portion 312 at the same time when the valve 30 and the valve bonnet 32 ​​are installed. The valve bonnet 32 ​​is a movable element. In the initial state, the valve bonnet 32 ​​can cover the through hole 311 to prevent foreign impurities from entering the through hole 311 and affecting the exhaust. In the moving state, the valve cap 32 can move in a direction away from the valve body 31 to separate from the valve body 31 , thereby increasing the size of the gap between the valve cap 32 and the valve body 31 to increase the exhaust rate.

[0050] The blocking member 33 is at least partially disposed between the valve body 31 and the valve bonnet 32 ​​to close the gap between the valve body 31 and the valve bonnet 32, thereby reducing the possibility of foreign matter entering the valve body 31 from the gap, ensuring the airtightness of the valve 30 is safe and reliable, and improving the function of preventing mud and foreign matter from entering the valve 30. At this time, the size of the gap between the valve body 31 and the valve bonnet 32 ​​also needs to be determined according to the size of the blocking member 33 to meet the sealing requirements of the airtight tooling and ensure the sealing effect after the blocking member 33 is installed in the gap between the valve body 31 and the valve bonnet 32.

[0051] It should be noted that the blocking member 33 includes a breathable portion, through which the gas passes through the blocking member 33, and the structure other than the breathable portion in the blocking member 33 can be used to prevent external impurities from entering and exiting the valve 30. The blocking member 33 can be made of a breathable material, such as foamed silicone foam. In this way, on the one hand, external impurities, such as mud or dust, can be blocked outside the valve 30 by the blocking member 33, and on the other hand, the gas can pass through the blocking member 33, thereby ensuring that when the valve cap 32 covers the through hole 311, the gas can still enter and exit the valve 30 and the receiving chamber 11, thereby ensuring that the battery 100 can maintain internal and external air pressure balance.

[0052] In addition, when installing the blocking member 33, the blocking member 33 contacts the valve bonnet 32 ​​and the valve body 31 respectively. After the installation is completed, the blocking member 33 needs to maintain a certain amount of compression to ensure that there is no gap between the blocking member 33 and the valve bonnet 32, and between the blocking member 33 and the valve body 31, thereby ensuring the sealing effect of the blocking member 33 and improving the airtight safety of the valve 30.

[0053] In this way, when the temperature of the battery cell 20 is high, the air pressure in the receiving chamber 11 rises rapidly, and the air pressure exceeds the specified value, the gas in the receiving chamber 11 can enter the through hole 311 and push the valve cap 32 to move in the direction away from the receiving chamber 11, so as to increase the size of the gap between the valve cap 32 and the valve body 31, so that the gas in the battery 100 can quickly pass through the gap between the valve cap 32 and the valve body 31, thereby quickly reducing the air pressure in the receiving chamber 11. When the air pressure in the battery 100 does not exceed the specified value, the battery 100 does not need to be vented, the valve cap 32 still covers the through hole 311, and the gas enters and exits the valve body 31 through the gap between the valve cap 32 and the valve body 31 and the blocking member 33, and the gas can flow smoothly between the receiving chamber 11 and the valve body 31, so that the gas can flow smoothly inside and outside the battery 100.

[0054] The blocking member 33 is at least partially disposed in the gap between the valve body 31 and the valve bonnet 32, so that the blocking member 33 can prevent foreign impurities from entering the gap, thereby reducing the possibility of foreign impurities entering the valve body 31. At the same time, the gap between the valve body 31 and the valve bonnet 32 ​​is located outside the mounting portion 312, and the direction of the opening of the gap between the valve bonnet 32 ​​and the valve body 31 is along the inner wall of the mounting portion 312 toward the outer wall of the mounting portion 312, so that the direction of the opening of the gap is not parallel to the moving direction of the valve bonnet 32, and is even perpendicular to the moving direction of the valve bonnet 32, so that even if foreign impurities enter the gap, the impurities will not hinder the valve bonnet 32 ​​from moving along the moving direction, and the valve bonnet 32 ​​can always move smoothly.

[0055] In addition, when the valve 30 is arranged on the windward side of the battery 100, impurities usually move toward the valve cap 32 and contact the valve cap 32. At this time, the gap is located outside the mounting portion 312, and there is a certain angle between the direction of the opening of the gap and the impact direction of the impurities, so that the valve 30 can prevent external impurities from directly impacting the gap, thereby reducing the possibility of external impurities entering the gap. At the same time, the gap being located outside the mounting portion 312 is also conducive to impurities entering the gap or impurities approaching the gap being carried away by the external water flow or blown away by the flowing air, thereby ensuring that there are not too many impurities in the gap.

[0056] Current valves usually use a built-in bonnet solution, where the bonnet is embedded in the top of the valve body, and there is a gap between the bonnet and the valve body. In some cases, such as when the valve is used as an explosion-proof valve for electric vehicle batteries, if the valve is placed on the windward side of the battery, a lot of mud and dust are likely to accumulate in the gap. It can be understood that the bonnet is located inside the valve body at this time, and the opening direction of the gap is parallel to the movement direction of the bonnet. If there are too many impurities in the gap, it will affect the movement of the bonnet. For example, as mud and dust continue to accumulate, the impurities will exert force on the bonnet, which may cause the bonnet to be lifted up by the impurities under some extreme conditions, causing the bonnet to open abnormally. Alternatively, smaller sand and gravel enter the gap, and the sand and gravel are stuck between the valve body and the bonnet, making the bonnet unable to move, which may cause the valve to lose its function.

[0057] In the valve 30 of the embodiment of the present application, the valve cap 32 is arranged on the mounting portion 312 and covers the through hole 311, and the blocking member 33 is at least partially arranged in the gap between the valve body 31 and the valve cap 32, so that the blocking member 33 can prevent foreign impurities from entering the gap, thereby reducing the possibility of foreign impurities entering the valve body 31. At the same time, the gap between the valve body 31 and the valve cap 32 is located outside the mounting portion 312, and the direction of the opening of the gap is along the inner wall of the mounting portion 312 toward the outer wall of the mounting portion 312, which is not parallel to the moving direction of the valve cap 32, and is even perpendicular to the moving direction of the valve cap 32. In this way, the valve 30 can use the blocking member 33 to reduce the possibility of foreign impurities entering the gap. Even if foreign impurities enter the gap, the impurities will not hinder the valve cap 32 from moving along the moving direction. When the internal air pressure of the battery 100 is greater than the specified value, the valve cap 32 can always move smoothly, thereby ensuring that the valve 30 can always be normally exhausted. At the same time, the valve 30 of the present application has a simple structure and is easy to install, which is conducive to production and installation.

[0058] See also Figure 4 In some embodiments, the valve body 31 includes a seat body 313, and the mounting portion 312 is arranged on the seat body 313. The gap between the valve bonnet 32 ​​and the valve body 31 includes the gap between the valve bonnet 32 ​​and the mounting portion 312, and the gap between the valve bonnet 32 ​​and the contact surface of the seat body 313 that contacts the valve bonnet 32. The blocking member 33 can be at least partially arranged in the gap between the contact surface of the valve bonnet 32 ​​and the seat body 313 that contacts the valve bonnet 32, or in the gap between the valve bonnet 32 ​​and the mounting portion 312, or in the gap between the valve bonnet 32 ​​and the seat body 313 that contacts the valve bonnet 32 ​​and the gap between the valve bonnet 32 ​​and the mounting portion 312, or in both the gap between the contact surface of the valve bonnet 32 ​​and the seat body 313 that contacts the valve bonnet 32 ​​and the gap between the valve bonnet 32 ​​and the mounting portion 312.

[0059] When the mounting portion 312 is arranged on the seat body 313, the axial distance between the valve bonnet 32 ​​and the seat body 313 of the valve body 31 is smaller than the distance between the valve bonnet 32 ​​and the mounting portion 312 in the direction perpendicular to the axial direction of the valve body 31, so as to avoid impurities entering the gap between the valve bonnet 32 ​​and the seat body 313 from being stuck in the gap between the valve bonnet 32 ​​and the mounting portion 312, thereby ensuring that the gas can flow normally in the gap between the valve bonnet 32 ​​and the mounting portion 312.

[0060] In addition, when the pressure of the battery 100 exceeds the specified value, in the axial direction of the valve body 31, the distance between the end of the valve bonnet 32 ​​that has moved toward the valve body 31 and the seat body 313 is greater than the distance between the end of the blocking member 33 that faces the valve bonnet 32 ​​and the seat body 313, that is, along the axial direction of the valve body 31, the height of the blocking member 33 is less than the opening height of the valve bonnet 32, so as to ensure that after the valve bonnet 32 ​​is opened, the blocking member 33 will not affect the exhaust rate of the gas, and there is a large gap between the valve bonnet 32 ​​and the blocking member 33, thereby accelerating the exhaust rate of the gas and improving the safety of the valve 30.

[0061] See also Figure 4 In some embodiments, the valve bonnet 32 ​​includes a body portion 321 and an extension portion 322. The extension portion 322 is sleeved on the outer wall of the mounting portion 312, so that the valve bonnet 32 ​​can cover the through hole 311 and the mounting portion 312, thereby ensuring that the gap between the valve body 31 and the valve bonnet 32 ​​is located outside the mounting portion 312, so that the opening direction of the gap is not parallel to the moving direction of the valve bonnet 32, thereby ensuring that impurities entering the gap will not affect the movement of the valve bonnet 32.

[0062] The surface of the body 321 and the surface of the extension 322 are arranged at an angle. In one embodiment, the angle may be an obtuse angle, so that the extension 322 can also play a guiding role, and the impurities contacting the body 321 can move along the extension 322 in a direction away from the center of the valve cap 32, so as to reduce the impurities that are retained in the valve 30 or even enter the gap. In another embodiment, the angle may be an acute angle to reduce the impurities that flow from the body 321 to the extension 322 and thus flow into the gap between the valve body 31 and the valve cap 32.

[0063] The blocking member 33 is at least partially disposed between the extension portion 322 and the mounting portion 312 , so that the blocking member 33 can be used to block foreign matter from entering the gap between the extension portion 322 and the mounting portion 312 , thereby reducing the possibility of foreign matter entering the valve body 31 .

[0064] For further information, see Figure 4In some embodiments, the extension portion 322 includes a first extension portion 3221 and a second extension portion 3222, the first extension portion 3221 is located between the second extension portion 3222 and the main body portion 321, and the second extension portion 3222 is sleeved on the outer wall of the mounting portion 312. The angle between the surface of the second extension portion 3222 and the surface of the first extension portion 3221 can be an obtuse angle, so that the second extension portion 3222 can fit the outer wall of the mounting portion 312 as much as possible, so as to reduce the distance between the second extension portion 3222 and the mounting portion 312, thereby reducing the possibility of impurities entering the gap between the second extension portion 3222 and the mounting portion 312.

[0065] At this time, the blocking member 33 is at least partially disposed between the second extension portion 3222 and the mounting portion 312 , so that the blocking member 33 can be used to prevent foreign matter from entering the gap between the second extension portion 3222 and the mounting portion 312 , thereby reducing the possibility of foreign matter entering the valve body 31 .

[0066] The second extension portion 3222 may extend in a variety of directions. The extension direction of the second extension portion 3222 is perpendicular to the contact surface between the seat body 313 and the second extension portion 3222, so as to reduce the size of the opening of the gap between the second extension portion 3222 and the seat body 313, thereby reducing the possibility of impurities entering the gap. The extension direction of the mounting portion 312 is not necessarily perpendicular to the surface of the seat body 313. Therefore, the extension direction of the second extension portion 3222 may also be parallel to the extension direction of the mounting portion 312, so as to ensure that the second extension portion 3222 fits the outer wall of the mounting portion 312, thereby ensuring that the distance between the second extension portion 3222 and the mounting portion 312 is small.

[0067] See also Figure 4 and Figure 5 In some embodiments, the mounting portion 312 is annular, and the radius of the mounting portion 312 gradually decreases in the direction away from the through hole 311, so that the distance between the mounting portion 312 and the valve bonnet 32 ​​gradually increases in the direction away from the through hole 311. In this way, impurities with a size larger than the size of the gap between the valve bonnet 32 ​​and the seat body 313 will be directly blocked outside the valve bonnet 32, while impurities with a size smaller than the size of the gap between the valve bonnet 32 ​​and the seat body 313 will enter the gap. However, since the distance between the mounting portion 312 and the valve bonnet 32 ​​gradually increases in the direction away from the through hole 311, the activity space of the impurities gradually becomes larger, so that the impurities entering the gap will move in the direction away from the through hole 311, and will not be retained in the gap between the valve bonnet 32 ​​and the seat body 313. In this way, the valve 30 can prevent larger particles from entering the gap between the valve bonnet 32 ​​and the seat body 313 and getting stuck, thereby improving the safety of the valve 30.

[0068] Of course, when there are multiple mounting parts 312, and multiple annular mounting parts 312 surround the through hole 311, the cross-sectional size of the mounting part 312 can be gradually reduced along the direction away from the through hole 311, so that along the direction away from the through hole 311, the distance between the mounting part 312 and the valve cap 32 will gradually increase.

[0069] Correspondingly, see Figure 4 and Figure 5 In some embodiments, the blocking member 33 is annular and is sleeved on the outer wall of the mounting portion 312, so that when the blocking member 33 is set in the gap between the valve body 31 and the valve cap 32, the blocking member 33 can prevent external impurities from all directions from entering the gap between the valve body 31 and the valve cap 32, thereby ensuring the blocking effect of the blocking member 33.

[0070] See also Figure 4 and Figure 5 In some embodiments, the valve body 31 also includes a seat body 313 and a connecting portion 314 that are connected to each other. The mounting portion 312 is arranged on the seat body 313. The mounting portion 312 surrounds a mounting groove 315. The through hole 311 passes through the bottom wall of the mounting groove 315 and the connecting portion 314. The valve 30 also includes a movable component 34. The movable component 34 is arranged in the through hole 311 and supported on the bottom wall of the mounting groove 315.

[0071] Specifically, one end corresponding to the seat body 313 can be understood as a plug-in end, and other components of the valve 30 can be connected to the valve body 31 through the seat body 313 and accommodated in the through hole 311 to complete the assembly of various components of the valve 30. One end corresponding to the connecting portion 314 is a connecting end, and the outer surface of the connecting portion 314 can be provided with a thread, so that the connecting end can be connected to the housing 10 of the battery 100 through the thread. At the same time, the through hole 311 runs through the bottom wall of the seat body 313 and the connecting portion 314, and also facilitates gas circulation.

[0072] The mounting portion 312 is disposed on the seat body 313, and the mounting portion 312 surrounds the mounting groove 315, so that when the movable component 34 is supported on the bottom wall of the mounting groove 315, the movable component 34 can be accommodated in the through hole 311, thereby completing the installation of the movable component 34. The movable component 34 is a movable element capable of generating traction, and at least a part of the movable component 34 is connected to the valve cap 32, so that the movable component 34 can be used to pull the valve cap 32. For example, the movable component 34 can always apply traction to the valve cap 32 toward the valve body 31. When the pressure in the battery 100 does not exceed the specified value, the movable component 34 can make the bottom end of the valve cap 32 fit the surface of the valve body 31, ensure that the gap between the valve cap 32 and the valve body 31 is small, and reduce the possibility of external impurities entering the valve 30. When the pressure of the battery 100 exceeds the specified value, the driving force generated by the high-pressure gas is greater than the traction force generated by the movable assembly 34, and the high-pressure gas causes the valve cap 32 to move in a direction away from the valve body 31. At this time, the valve cap 32 drives the movable assembly 34 to move in a direction away from the valve body 31. When the pressure of the battery 100 drops below the specified value, the traction force applied by the movable assembly 34 to the valve cap 32 is greater than the driving force applied by the high-pressure gas to the valve cap 32, so that the movable assembly 34 can drive the valve cap 32 to move in a direction close to the valve body 31, so that the bottom end of the valve cap 32 is again attached to the surface of the valve body 31. In this way, the valve 30 can ensure that the exhaust is completed smoothly when the pressure of the battery 100 is greater than the specified value. When the pressure of the battery 100 is less than the specified value, the valve 30 can reduce the external impurities entering the through hole 311 through the valve cap 32, and ensure that the gas can normally enter and exit the valve 30 and the receiving cavity 11 through the gap between the valve cap 32 and the valve body 31.

[0073] See also Figure 4 and Figure 5 In some embodiments, the base body 313 includes a connecting platform 3131, and the connecting platform 3131 is provided with a first through hole 31311 and a second through hole 31312. The first through hole 31311 and the second through hole 31312 are both connected to the through hole 311, so that the gas or the active component 34 can pass through the first through hole 31311 or the second through hole 31312 to facilitate the circulation of gas and the installation of the active component 34.

[0074] The movable component 34 includes a breathable membrane 342, a pressure cover 341, a guide rod 343 and an elastic member 344. The pressure cover 341 is supported on the bottom wall of the mounting groove 315 and covers the through hole 311 and the first through hole 31311. The breathable membrane 342 is installed on the pressure cover 341. The guide rod 343 passes through the second through hole 31312 and is connected to the pressure cover 341. The elastic member 344 surrounds the guide rod 343, and the two opposite ends of the elastic member 344 are respectively abutted against the guide rod 343 and the connecting platform 3131. The guide rod 343 also includes a through hole 3431. The end of the through hole 3431 facing the valve cap 32 is connected to the through hole 311.

[0075] Specifically, the breathable membrane 342 can be made of a breathable and hydrophobic material, such as polytetrafluoroethylene (PTFE). The PTFE membrane has micropores, allowing gas to enter and exit the valve 30 and the receiving cavity 11 through the membrane. The diameter of the micropores is smaller than the smallest form of liquid water droplets, and the membrane has a certain degree of hydrophobicity, so it has a certain waterproof function.

[0076] The pressure cap 341 is supported on the bottom wall of the installation groove 315 and can be used to support the breathable membrane 342. For example, the pressure cap 341 is provided with a groove, the opening of the groove faces the valve cap 32, and the breathable membrane 342 can be installed in the groove. At this time, in order to ensure the installation stability of the breathable membrane 342, the movable component 34 can also include a first pressure ring 345, and the first pressure ring 345 can also be installed in the groove. The breathable membrane 342 is located between the first pressure ring 345 and the bottom wall of the groove to compact and fix the breathable membrane 342.

[0077] The guide rod 343 passes through the second through hole 31312 and is connected to the gland 341. The elastic member 344 is disposed around the guide rod 343, and the elastic member 344 includes a first end 3441 and a second end 3442 opposite to each other. The first end 3441 of the elastic member 344 abuts against the connecting platform 3131, and the second end 3442 of the elastic member 344 abuts against the guide rod 343. In this way, the elastic member 344 can apply a traction force in a direction away from the gland 341 to the guide rod 343, so that the elastic member 344 can use the guide rod 343 to apply a traction force in a direction close to the bottom wall of the installation groove 315 to the gland 341, so that the gland 341 can be pressed against the bottom wall of the installation groove 315. When the pressure cover 341 is separated from the bottom wall of the installation groove 315 , the traction force applied by the elastic member 344 can also make the pressure cover 341 move toward the bottom wall of the installation groove 315 so that the pressure cover 341 can move to the bottom wall of the installation groove 315 .

[0078] In one embodiment, the guide rod 343 includes a first end 3432 and a second end 3433 facing each other, the outer surface of the first end 3432 of the guide rod 343 is provided with a thread, the second end 3433 of the guide rod 343 is provided with a flange surface, the first end 3432 of the guide rod 343 can be threadedly connected with the gland 341, and the thread is reinforced and fixed with anaerobic glue, the elastic member 344 is arranged around the guide rod 343, and the second end 3442 of the elastic member 344 is installed on the flange surface. Of course, the first end 3432 of the guide rod 343 can also be provided with a clamping portion, and the first end 3432 of the guide rod 343 is clamped and connected with the gland 341, which is not limited here.

[0079] The guide rod 343 also includes a through hole 3431, which passes through the first end 3432 and the second end 3433 of the guide rod 343, and the end of the through hole 3431 facing the valve cap 32 is connected to the through hole 311, and the end of the through hole 3431 facing away from the valve cap 32 can be directly connected to the receiving chamber 11, so that the gas can flow smoothly between the receiving chamber 11 and the breathable membrane 342 through the through hole 3431.

[0080] The pressure cap 341 covers the through hole 311 and the first through hole 31311, so that the pressure cap 341 can limit the gas or liquid from entering and exiting the through hole 311 and the first through hole 31311. When the pressure of the battery 100 does not exceed the specified value, that is, when the valve 30 is in the closed state, after the external gas or liquid enters the valve 30 from the gap between the valve cap 32 and the valve body 31, only the gas passing through the air-permeable membrane 342 can enter the through hole 3431, and then enter the receiving chamber 11. Correspondingly, the gas in the receiving chamber 11 needs to flow into the through hole 3431, and then pass through the air-permeable membrane 342, and only the gas passing through the air-permeable membrane 342 can flow to the outside of the valve 30 through the gap between the valve body 31 and the valve cap 32. In this way, the valve 30 can use the pressure cap 341 and the air-permeable membrane 342 to ensure that when the valve 30 is in the closed state, only the gas flows between the receiving chamber 11 and the through hole 311, thereby achieving the functions of waterproofing and ventilation.

[0081] When the pressure of the battery 100 exceeds the specified value, the high-pressure gas in the receiving chamber 11 can pass through the through hole 311 and the first perforation 31311, and contact the gland 341, applying a driving force to the gland 341 away from the bottom wall of the mounting portion 312, so as to drive the valve cap 32 to move in the direction away from the bottom wall of the mounting portion 312, thereby completing the valve opening and realizing the function of exhaust and pressure relief. It should be noted that the number of the first perforation 31311 can be one, two or more, as long as it can ensure that when the pressure of the battery 100 exceeds the specified value, the high-pressure gas in the receiving chamber 11 can contact the gland and complete the valve opening.

[0082] See also Figure 4 and Figure 5In some embodiments, the gland 341 is connected to the valve cap 32 so that the gland 341 drives the valve cap 32 to separate from the mounting portion 312 when the valve is opened.

[0083] For example, in some embodiments, the valve cap 32 further includes a third extension portion 323, which is arranged around the outer edge of the gland 341 and forms a ventilated space 3230, so that the elastic member 344 can use the gland 341 to drive the valve cap 32 to move, and the through hole 311 can be connected with the ventilated space 3230, so that gas can flow between the through hole 311 and the ventilated space 3230. The third extension portion 323 is provided with a ventilated hole 3231 to connect the ventilated space 3230 and the outside, so that external gas can pass through the gland 341 through the ventilated hole 3231 and enter the ventilated space 3230, and then enter the through hole 311. Correspondingly, the air in the receiving chamber 11 can flow into the ventilated space 3230 through the through hole 311, and then flow to the outside through the ventilated space 3230. In this way, it can be ensured that the gas can always flow in the valve 30. In other embodiments, the valve cap 32 is provided with a snap-fit ​​piece, and the gland 341 is provided with a receiving piece, and the gland 341 and the valve cap 32 can be connected by snapping the receiving piece and the snap-fit ​​piece.

[0084] When the pressure of the battery 100 exceeds the specified value, the high-pressure gas in the receiving chamber 11 will pass through the through hole 311 and the first through hole 31311 in sequence. At this time, the high-pressure gas will resist the gland 341 and apply a driving force to the gland 341 away from the bottom wall of the mounting portion 312, and the driving force is greater than the traction force exerted on the gland 341 toward the bottom wall of the mounting portion 312. At this time, the gland 341 will open the valve, that is, the gland 341 will move in the direction away from the bottom wall of the mounting portion 312, and drive the valve cap 32 to move in the direction away from the bottom wall of the mounting portion 312, so as to increase the size of the gap between the valve cap 32 and the valve body 31, speed up the exhaust speed, and ensure that the air pressure in the receiving chamber 11 can be quickly reduced. When the pressure in the battery 100 does not exceed the specified value, the elastic member 344 applies a traction force toward the valve body 31 to the guide rod 343 and the pressure cover 341, so that the pressure cover 341 applies a traction force toward the valve body 31 to the valve cap 32, so that the bottom end of the valve cap 32 fits the surface of the valve body 31 as much as possible, thereby reducing the size of the gap between the valve cap 32 and the valve body 31, completing the valve closing, and further reducing the possibility of external impurities entering the valve 30.

[0085] In some embodiments, the edge of the gland 341 may be provided with a chamfer, and the gland 341 and the valve bonnet 32 ​​are assembled by interference fit, so as to utilize the chamfer to ensure the coaxiality of the gland 341 and the valve bonnet 32, so as to improve the assembly accuracy of the gland 341 and the valve bonnet 32, so that the relative position between the valve bonnet 32 ​​and the mounting portion 312 is fixed after the gland 341 and the valve bonnet 32 ​​are installed. In this way, the valve 30 can ensure that after the gland 341 and the valve bonnet 32 ​​are connected, the gap between the valve bonnet 32 ​​and the seat body 313 is small, and the blocking member 33 can seal the gap between the valve bonnet 32 ​​and the seat body 313, thereby meeting the airtight tooling assembly requirements.

[0086] See also Figure 4 In some embodiments, the valve 30 further includes a flow control member 35, which is received in the through hole 3431, and the flow control member 35 is provided with a flow control portion 351. The flow control portion 351 includes a first opening 3511 and a second opening 3512 opposite to each other, and the second opening 3512 is located between the first opening 3511 and the end of the through hole 3431 away from the valve cap 32. In a plane perpendicular to the axial direction of the valve body 31, the projected area of ​​the first opening 3511 and the projected area of ​​the second opening 3512 are not equal. For example, in a plane perpendicular to the axial direction of the valve body 31, the projected area of ​​the first opening 3511 is greater than the projected area of ​​the second opening 3512, or the projected area of ​​the first opening 3511 is smaller than the projected area of ​​the second opening 3512. For example, the flow control portion 351 is in a duckbill shape, a nipple shape, a cone shape, or the like.

[0087] In this way, after the outside air flows into the through hole 3431, it needs to pass through the flow control part 351 of the flow control member 35 before it can flow into the receiving cavity 11. The gas needs to flow through the opening with a smaller projected area in the flow control part 351 before it can flow into the receiving cavity 11, so that the flow control part 351 can reduce the flow area in the through hole 3431 to reduce unnecessary gas exchange, thereby reducing the outside humid air entering the receiving hole 131, thereby avoiding the accumulation of excessive water vapor in the receiving cavity 11 and condensation to cause insulation abnormality of the battery 100, and improving the electrical safety of the equipment.

[0088] The movable component 34 may also include a second pressure ring 36 at this time, which is located between the flow control member 35 and the opening of the connecting portion 314 facing the receiving chamber 11 to compact and fix the flow control member 35 and prevent the flow control member 35 from falling from the connecting portion 314 into the receiving chamber 11, thereby ensuring that the flow control member 35 can work normally.

[0089] See also Figure 4In some embodiments, the bottom wall of the mounting groove 315 is further provided with a receiving groove 316, and the receiving groove 316 surrounds the through hole 311. The valve 30 further includes a first sealing member 37, which is provided in the receiving groove 316 and abuts against the gland 341 and the receiving groove 316. In this way, the first sealing member 37 can seal the gap between the mounting groove 315 and the gland 341, thereby ensuring that the gas entering the through hole 311 will not enter the valve 30 and the receiving cavity 11 from the mounting groove 315 and the gland 341, and the gas entering the through hole 311 can only enter the receiving cavity 11 through the gas permeable membrane 342 and the through hole 3431.

[0090] See also Figure 6 In some embodiments, the valve 30 further includes a protective member 38, which is covered on the outer periphery of the seat body 313, so that the protective member 38 can cover most of the seat body 313 and the valve cap 32, so as to isolate foreign matter from contacting most of the seat body 313 and the valve cap 32, thereby further reducing the possibility of foreign matter entering the gap between the valve 30 and the valve body 31. The protective member 38 can be made of materials such as a film or a plastic cover.

[0091] The specific shape of the protective member 38 and the specific installation position of the protective member 38 need to be determined according to the shape of the seat body 313 to ensure that there is a certain gap between the protective member 38 and the seat body 313 for gas circulation. Figure 7 The outer edge of the cross section of the seat body 313 can be a hexagon, and the outer edge of the cross section of the protective member 38 can be a circle, and the protective member 38 is connected to the side wall of the seat body 313, so that after the protective member 38 is installed on the seat body 313, there is still a gap between the protective member 38 and the seat body 313 for gas circulation. At the same time, when the valve body 31 is arranged on the windward side of the electrical equipment 1000, external impurities usually flow in the direction toward the valve cap 32 and contact the valve body 31. At this time, the opening of the gap between the protective member 38 and the seat body 313 is away from the valve cap 32, so that the possibility of external impurities entering the gap between the valve cap 32 and the valve body 31 can be further reduced.

[0092] See also Figure 2 and Figure 4 In some embodiments, the side wall of the housing 10 includes a receiving hole 131, and the connecting portion 314 of the valve body 31 is connected to the receiving hole 131. The seat body 313 is provided with a receiving groove 317 arranged around the receiving hole 131 at one end facing the housing 10. The valve 30 also includes a second sealing member 39, which is installed in the receiving groove 317 and abuts between the side wall of the housing 10 and the receiving groove 317.

[0093] Specifically, the receiving hole 131 passes through the side wall of the shell 10, so that after the connection part 314 and the receiving hole 131 are connected, the valve 30 can communicate the receiving chamber 11 and the external space of the shell 10. The connection part 314 and the receiving hole 131 can be connected by threaded connection or snap connection. After the connection part 314 and the receiving hole 131 are connected, the seat body 313 contacts the outer surface of the side wall of the shell 10, and there is a gap between the two. Therefore, at this time, a receiving groove 317 can be set around the receiving hole 131 at one end of the seat body 313 facing the shell 10, and a second sealing member 39 can be set in the receiving groove 317 to seal the gap between the seat body 313 and the outer surface of the side wall of the shell 10, thereby ensuring that impurities outside the receiving chamber 11 will not enter the receiving chamber 11 from the gap between the seat body 313 and the outer surface of the side wall of the shell 10.

[0094] In the valve 30 of the battery 100 of the embodiment of the present application, the valve cap 32 is arranged on the mounting portion 312 and covers the through hole 311, and the blocking member 33 is at least partially arranged in the gap between the valve body 31 and the valve cap 32, so that the blocking member 33 can prevent foreign impurities from entering the gap, thereby reducing the possibility of foreign impurities entering the valve body 31. At the same time, the gap between the valve body 31 and the valve cap 32 is located outside the mounting portion 312, and the opening of the gap is oriented in the direction along the inner wall of the mounting portion 312 toward the outer wall of the mounting portion 312, which is not parallel to the moving direction of the valve cap 32, and is even perpendicular to the moving direction of the valve cap 32. In this way, the valve 30 can use the blocking member 33 to reduce the possibility of foreign impurities entering the gap. Even if foreign impurities enter the gap, the impurities will not hinder the valve cap 32 from moving along the moving direction. When the internal air pressure of the battery 100 is greater than the specified value, the valve cap 32 can always move smoothly, thereby ensuring that the valve 30 can always be normally exhausted. At the same time, the valve 30 of the present application has a simple structure and is easy to install, which is conducive to production and installation.

[0095] See also Figure 1 , Figure 4 and Figure 8 The electric device 1000 provided in the embodiment of the present application includes the battery 100 and the electric device 300 of any of the above embodiments, and the electric device 300 is electrically connected to the battery 100.

[0096] Specifically, the electrical device 300 refers to equipment and devices that use electrical energy to work or provide necessary functions. The electrical device 300 is electrically connected to the battery 100, and the electrical device 300 can use the electrical energy delivered by the battery 100 to work.

[0097] The battery 100 disclosed in the present application can be used in an electric device 1000 using the battery 100 as a power source or various energy storage systems using the battery 100 as an energy storage element. The electric device 1000 can be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship or a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft can include an airplane (including a drone), a rocket, a space shuttle, and a spacecraft, etc.

[0098] This application is only described by taking the electric device 1000 as a vehicle as an example. The electric device 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is arranged inside the electric device 1000. The battery 100 can be arranged at the bottom, head or tail of the electric device 1000, but is not limited to this. For example, the battery 100 can also be arranged in the area below the seat of the electric device 1000. The battery 100 can be used to power the electric device 1000. For example, the battery 100 can be used as an operating power source for the electric device 1000. The power-consuming device 300 is any device that uses electric energy to achieve specific functions. When the power-consuming device 1000 is a vehicle, the power-consuming device 300 may include a controller and a motor. The controller is used to control the energy storage device to power the motor, for example, to meet the power requirements for starting, navigating and driving the vehicle. The power-consuming device 300 may also include a dashboard and a car audio system. After obtaining electric energy, the dashboard can be used to display various parameters and abnormal conditions, and the car audio system can be used to play music after obtaining electric energy.

[0099] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the electrical device 1000, but also serve as a driving power source for the electrical device 1000, replacing or partially replacing fuel or natural gas to provide driving power for the electrical device 1000.

[0100] In the electric device 1000 of the embodiment of the present application, in the valve 30 of the battery 100, the valve cap 32 is arranged on the mounting portion 312 and covers the through hole 311, and the blocking member 33 is at least partially arranged in the gap between the valve body 31 and the valve cap 32, so that the blocking member 33 can prevent foreign impurities from entering the gap, thereby reducing the possibility of foreign impurities entering the valve body 31. At the same time, the gap between the valve body 31 and the valve cap 32 is located outside the mounting portion 312, and the opening of the gap is oriented along the inner wall of the mounting portion 312 toward the outer wall of the mounting portion 312, which is not parallel to the moving direction of the valve cap 32, and is even perpendicular to the moving direction of the valve cap 32. In this way, the valve 30 can use the blocking member 33 to reduce the possibility of foreign impurities entering the gap. Even if foreign impurities enter the gap, the impurities will not hinder the valve cap 32 from moving along the moving direction. When the internal air pressure of the battery 100 is greater than the specified value, the valve cap 32 can always move smoothly, thereby ensuring that the valve 30 can always be exhausted normally. At the same time, the valve 30 of the present application has a simple structure and is easy to install, which is beneficial to production, installation and use.

[0101] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0102] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, unless otherwise clearly and specifically defined.

[0103] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A valve, characterized in that: include: A valve body, wherein the valve body is provided with a through hole and a mounting portion surrounding the through hole; a valve bonnet, the valve bonnet being arranged on the mounting portion and covering the through hole; A blocking member is at least partially disposed between the valve body and the valve cap.

2. The valve according to claim 1, characterized in that: The valve cap includes a main body and an extension portion, wherein the extension portion is sleeved on the outer wall of the mounting portion, a surface of the main body and a surface of the extension portion are arranged at an angle, and the blocking member is at least partially arranged between the extension portion and the mounting portion.

3. The valve according to claim 2, characterized in that: The extension portion includes a first extension portion and a second extension portion, the first extension portion is located between the second extension portion and the main body portion, the second extension portion is sleeved on the outer wall of the mounting portion, and the blocking member is at least partially disposed between the second extension portion and the mounting portion.

4. The valve according to claim 1, characterized in that: The mounting portion is annular, and a radius of the mounting portion gradually decreases in a direction away from the through hole.

5. The valve according to claim 1, characterized in that: The blocking member is annular and sleeved on the outer wall of the mounting portion.

6. The valve according to claim 1, characterized in that The blocking member includes a gas permeable portion through which gas passes through the blocking member.

7. The valve according to any one of claims 1 to 6, characterized in that: The valve body includes a seat body and a connecting portion that are connected to each other, the mounting portion is arranged on the seat body, the mounting portion forms a mounting groove, the through hole passes through the bottom wall of the mounting groove and the connecting portion, and the valve also includes a movable component, the movable component is arranged in the through hole and supported on the bottom wall of the mounting groove.

8. The valve according to claim 7, characterized in that The seat body comprises a connecting platform, the connecting platform is provided with a first through hole and a second through hole, and the first through hole and the second through hole are both connected to the through hole; The movable component includes a pressure cover, a breathable membrane, a guide rod and an elastic member. The pressure cover is carried on the bottom wall of the installation groove and covers the through hole and the first through hole. The breathable membrane is installed on the pressure cover. The guide rod passes through the second through hole and is connected to the pressure cover. The elastic member surrounds the guide rod, and the two opposite ends of the elastic member are respectively abutted against the guide rod and the connecting platform. The guide rod also includes a through hole, and one end of the through hole facing the valve cap is connected to the through hole.

9. The valve according to claim 8, characterized in that The valve cap is connected to the gland so that the valve cap is driven to separate from the mounting portion when the gland opens the valve.

10. The valve according to claim 9, characterized in that The valve cap further comprises a third extension portion, which is arranged around the outer edge of the gland and forms a breathable space. The third extension portion is provided with a breathable hole to connect the breathable space with the outside.

11. The valve according to claim 8, characterized in that The valve also includes a flow control member, which is accommodated in the through hole. The flow control member is provided with a flow control portion, and the flow control portion includes a first opening and a second opening relative to each other. The second opening is located between the first opening and an end of the through hole facing away from the valve cap. In a plane perpendicular to the axial direction of the valve body, the projected area of ​​the first opening and the projected area of ​​the second opening are not equal.

12. The valve according to claim 8, characterized in that The bottom wall of the installation groove is also provided with a receiving groove, and the receiving groove surrounds the through hole. The valve also includes a first sealing member, which is arranged in the receiving groove and abuts against the receiving groove and the pressure cover.

13. The valve according to claim 8, characterized in that The valve further comprises a protective member, and the protective member is covered on the outer periphery of the seat body.

14. A battery, characterized in that: include: A housing, wherein the housing is provided with a receiving cavity; A battery cell, the battery cell being received in the receiving cavity; The valve according to any one of claims 1 to 13, wherein the valve is mounted on the housing, and the through hole is connected to the receiving cavity.

15. The battery according to claim 14, characterized in that The side wall of the housing includes a receiving hole, and the valve body includes a seat body and a connecting portion, and the connecting portion is connected to the receiving hole; The seat body is provided with a receiving groove surrounding the receiving hole at one end thereof facing the shell. The valve further comprises a second sealing member installed in the receiving groove and abutting between the side wall of the shell and the receiving groove.

16. An electrical equipment, characterized in that: include: The battery according to claim 14 or 15, and An electrical device is electrically connected to the battery.

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