Battery top cover and battery

Abstract

The utility model relates to the technical field of battery production, and discloses a battery top cover and a battery, the battery top cover comprises a top cover body, a pole assembly and a sensor module, a first through hole and a second through hole are formed in the top cover body, and a first buckle structure is arranged on the side, away from the first through hole, of the second through hole in the top cover body; the pole assembly is mounted in the first through hole, and a first clamping structure is arranged on the upper surface of the pole assembly and / or the top cover body; the sensor module comprises a fixing assembly and a sensor assembly, the fixing assembly comprises a first end and a second end which are oppositely arranged in the length direction, and the sensor assembly is connected between the first end of the fixing assembly and the second end of the fixing assembly. According to the battery top cover disclosed by the utility model, the sensor module is fixed on the top cover body in a clamping manner, the mounting manner is simple and convenient, and later maintenance and replacement are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a battery top cover and a battery. Background Technology

[0002] Currently, with the continuous development of the energy storage industry, lithium-ion batteries have been widely used due to their high capacity and other excellent characteristics. A lithium-ion battery mainly consists of an aluminum casing and a top cover. The aluminum casing has an opening, and the top cover seals the opening in the aluminum casing, thus forming a closed energy storage system. Within this closed system are corresponding energy storage structures and materials.

[0003] During the use of lithium-ion batteries, the charge-discharge cycles generate a large amount of heat and gas, which poses significant challenges to battery performance, safety, and maintenance. In particular, the accumulation of gas can cause the battery to swell, thereby affecting its reliability and lifespan.

[0004] In existing technologies, to effectively monitor key data such as temperature and pressure inside a battery, sensor modules are typically welded onto the battery's top cover. However, this method of fixing sensor modules is not only complex to manufacture but also inconvenient for later maintenance and replacement. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a battery top cover and a battery, which allows the sensor module to be fixed to the top cover body by a snap-fit ​​method. The installation method is simple and convenient, and it is also convenient for later maintenance and replacement.

[0006] The technical effects to be achieved by this utility model are realized through the following aspects:

[0007] In a first aspect, this utility model provides a battery top cover, comprising:

[0008] The top cover body has a first through hole and a second through hole, and a first buckle structure is provided on the side of the second through hole away from the first through hole;

[0009] An electrode assembly is installed in the first through hole, and a first snap-fit ​​structure is provided on the upper surface of the electrode assembly and / or the top cover body; and

[0010] A sensor module includes a fixing component and a sensor component. The fixing component includes a first end and a second end that are arranged opposite each other along the length direction. The sensor component is connected between the first end and the second end of the fixing component. The first end of the fixing component is provided with a second snap-fit ​​structure that snaps into a first snap-fit ​​structure. The second end of the fixing component is provided with a second snap-fit ​​structure that snaps into a first snap-fit ​​structure. The bottom of the sensor component is embedded in a second through hole, and an air inlet is provided at the bottom of the sensor component.

[0011] In some implementations, the first snap-fit ​​structure includes a snap-fit ​​groove formed on the upper surface of the pole assembly and / or the top cover body, and the second snap-fit ​​structure includes a snap-fit ​​portion embedded in the snap-fit ​​groove.

[0012] In this implementation, the snap-fit ​​portion of the first end of the fixing component snaps into the snap-fit ​​groove opened on the upper surface of the pole assembly and / or the top cover body, so that the sensor module is fixedly snapped onto the upper surface of the top cover body.

[0013] In some implementations, when the snap-fit ​​groove is formed on the upper surface of the top cover body, a first limiting recess is formed on the upper surface of the top cover body that communicates with the snap-fit ​​groove, and the first end of the fixing component is embedded in the first limiting recess, with the upper surface of the first end of the fixing component being flush with the upper surface of the top cover body.

[0014] In this implementation, the first limiting platform can prevent the first end of the fixing component from protruding from the upper surface of the top cover body, so as to make it easier to attach the top patch to the upper surface of the top cover body, without increasing the thickness of the battery top cover, so as to make the overall structure more compact.

[0015] In some implementations, a third snap-fit ​​structure is provided on the inner wall of the snap-fit ​​groove, and a fourth snap-fit ​​structure is provided on the snap-fit ​​part to snap-fit ​​with the third snap-fit ​​structure.

[0016] In this implementation, the fourth snap-fit ​​structure snaps into the third snap-fit ​​structure, thereby improving the snap-fit ​​stability between the snap-fit ​​part and the snap-fit ​​groove, and further improving the assembly reliability between the fixing component and the top cover body, and / or between the fixing component and the pole component.

[0017] In some implementations, the third snap-fit ​​structure includes a snap-fit ​​hole formed on the inner wall of the snap-fit ​​groove, and the fourth snap-fit ​​structure includes a snap-fit ​​post disposed on the snap-fit ​​portion and snap-fitted to the snap-fit ​​hole; and / or

[0018] The third snap-fit ​​structure includes a snap-fit ​​post disposed on the inner wall of the snap-fit ​​groove, and the fourth snap-fit ​​structure includes a snap-fit ​​hole formed on the snap-fit ​​part and snap-fitted to the snap-fit ​​post.

[0019] In some implementations, a third through hole is provided on the side of the second through hole away from the first through hole on the top cover body, the first snap-fit ​​structure includes a snap-fit ​​groove formed on the inner wall of the third through hole, and the second snap-fit ​​structure includes a snap-fit ​​part that engages with the snap-fit ​​groove.

[0020] In this implementation, the second end of the fixing component is fastened to the snap-fit ​​groove on the inner wall of the third through hole through the snap-fit ​​part, thereby fixing the second end of the fixing component to the upper surface of the top cover body, and further making the sensor module more stably fastened to the upper surface of the top cover body.

[0021] In some implementations, the battery top cover also includes an explosion-proof component, which includes an explosion-proof valve and an explosion-proof membrane. The explosion-proof valve is disposed in the third through hole, and the explosion-proof membrane is installed on the upper surface of the top cover body and covers the third through hole.

[0022] In some implementations, a second limiting recess is provided on the upper surface of the top cover body, which communicates with the third through hole. The second end of the fixing component is embedded in the second limiting recess, and the upper surface of the second end of the fixing component is flush with the upper surface of the top cover body.

[0023] In some implementations, the explosion-proof film has an avoidance opening to avoid the buckle portion.

[0024] Secondly, this utility model provides a battery, comprising:

[0025] The housing includes a receiving cavity with an opening;

[0026] Electrode assemblies are installed within the accommodating cavity; and

[0027] The aforementioned battery top cover; the battery top cover closes to the opening.

[0028] In summary, this utility model has at least the following advantages:

[0029] The battery top cover provided by this utility model has a sensor assembly connected to a fixing assembly. The bottom of the sensor assembly is embedded in a second through hole and has an air inlet, so that the sensor assembly can obtain information such as the air pressure and / or temperature inside the battery. The first end of the fixing assembly is provided with a second snap-fit ​​structure, which snaps onto the first snap-fit ​​structure on the upper surface of the terminal post assembly and / or the top cover body, so that the first end of the fixing assembly is installed on the top cover body. The second end of the fixing assembly is provided with a second snap-fit ​​structure, which snaps onto the first snap-fit ​​structure on the top cover body, so that the second end of the fixing assembly is fixed to the top cover body. Thus, the sensor module is fixed to the top cover body by snap-fit, which is simple and convenient to install and facilitates later maintenance and replacement. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the battery top cover in Example 1;

[0031] Figure 2 for Figure 1 A partial cross-sectional view of the battery top cover is shown.

[0032] Figure 3 This is a schematic diagram of the structure of the first limiting platform in Example 1;

[0033] Figure 4 for Figure 1 The diagram shows the structure of the snap-fit ​​groove and snap-fit ​​part;

[0034] Figure 5 for Figure 4 Another viewpoint structural diagram of the snap-fit ​​groove and snap-fit ​​part shown;

[0035] Figure 6 This is a schematic diagram of the buckle part and buckle groove in Embodiment 1;

[0036] Figure 7 This is a schematic diagram of the structure of the second limiting platform in Example 2;

[0037] Figure 8 This is a schematic diagram of the battery structure in Example 3.

[0038] Marked in the image:

[0039] 1. Battery top cover;

[0040] 10. Top cover body; 11. First through hole; 12. Second through hole; 13. First snap-fit ​​structure; 131. Snap-fit ​​groove; 14. First limiting countersunk platform; 15. Third through hole; 16. Second limiting countersunk platform;

[0041] 20. Pole post assembly; 21. First snap-fit ​​structure; 211. Snap-fit ​​groove; 212. Third snap-fit ​​structure;

[0042] 30. Sensor module; 31. Fixing component; 311. Second snap-fit ​​structure; 3111. Snap-fit ​​part; 3112. Fourth snap-fit ​​structure; 312. Second snap-fit ​​structure; 3121. Snap-fit ​​part; 32. Sensor assembly; 321. Air inlet;

[0043] 40. Explosion-proof components; 41. Explosion-proof valves; 42. Explosion-proof membranes; 421. Clearance openings;

[0044] 2. Battery;

[0045] 50. Shell; 51. Receiving cavity;

[0046] 60. Electrode assembly. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0049] Example 1:

[0050] Please see the appendix Figure 1 ~Appendix Figure 6 The battery top cover 1 of this utility model includes a top cover body 10, an electrode assembly 20, and a sensor module 30.

[0051] In this regard, please combine Figure 1 and Figure 2 , Figure 1 The diagram illustrates the structural relationship between the top cover body 10, the pole post assembly 20, and the sensor module 30 in this embodiment of the present invention. Figure 2The illustration shows the specific structure of the sensor module 30 in this embodiment of the present invention. Specifically, the top cover body 10 has a first through hole 11 and a second through hole 12. A first snap-fit ​​structure 13 is provided on the side of the second through hole 12 away from the first through hole 11 on the top cover body 10. The pole post assembly 20 is installed in the first through hole 11. A first snap-fit ​​structure 21 is provided on the upper surface of the pole post assembly 20 and / or the top cover body 10. The sensor module 30 includes a fixing component 31 and a sensor component 32. The fixing component 31 includes a first end and a second end arranged opposite to each other along the length direction. The sensor component 32 is connected between the first end and the second end of the fixing component 31. The first end of the fixing component 31 is provided with a second snap-fit ​​structure 311 that snaps into the first snap-fit ​​structure 21. The second end of the fixing component 31 is provided with a second snap-fit ​​structure 312 that snaps into the first snap-fit ​​structure 13. The bottom of the sensor component 32 is embedded in the second through hole 12. An air inlet 321 is provided at the bottom of the sensor component 32.

[0052] In this embodiment, the sensor assembly 32 is connected between the first end of the fixing assembly 31 and the second end of the fixing assembly 31, and the bottom of the sensor assembly 32 is embedded in the second through hole 12 opened on the top cover body 10. The bottom of the sensor assembly 32 is provided with an air inlet 321 communicating with the second through hole 12, so that the sensor assembly 32 can obtain key data such as the air pressure and / or temperature inside the battery through the air inlet 321, thereby realizing active safety monitoring of the air pressure and / or temperature inside the battery. Specifically, a first snap-fit ​​structure 21 is provided on the upper surface of the pole assembly 20 and / or the top cover body 10, and a second snap-fit ​​structure 311 is provided at the first end of the fixing assembly 31 to engage with the first snap-fit ​​structure 21. A first latching structure 13 is provided on the side of the second through hole 12 away from the first through hole 11 on the top cover body 10, and a second latching structure 312 is provided at the second end of the fixing assembly 31 to engage with the first latching structure 13, so that the fixing assembly 31 is snapped and fixed on the top cover body 10, thereby allowing the sensor assembly 32 to be fixedly installed on the top cover body 10 by snap-fit.

[0053] In the actual installation process, firstly, the second snap-fit ​​structure 311 of the first end of the fixing component 31 is snapped onto the first snap-fit ​​structure 21 on the upper surface of the terminal post assembly 20 and / or the top cover body 10, thereby fixing the first end of the fixing component 31; secondly, the bottom of the sensor assembly 32 is embedded into the second through hole 12 on the top cover body 10, so that the sensor assembly 32 can monitor the internal air pressure and / or temperature of the battery through the air inlet 321; finally, the second snap-fit ​​structure 312 of the second end of the fixing component 31 is snapped onto the first snap-fit ​​structure 13 on the top cover body 10, thereby fixing the second end of the fixing component 31 onto the top cover body 10, and further fixing the sensor module 30 onto the top cover body 10.

[0054] In the aforementioned battery top cover 1, the sensor assembly 32 is connected to the fixing assembly 31. The bottom of the sensor assembly 32 is embedded in the second through hole 12 and has an air inlet 321, so that the sensor assembly 32 can obtain information such as the internal air pressure and / or temperature of the battery. The first end of the fixing assembly 31 is provided with a second snap-fit ​​structure 311, which snaps onto the first snap-fit ​​structure 21 on the terminal post assembly 20 and / or the top cover body 10, so that the first end of the fixing assembly 31 is installed on the top cover body 10. The second end of the fixing assembly 31 is provided with a second snap-fit ​​structure 312, which snaps onto the first snap-fit ​​structure 13 on the top cover body 10, so that the second end of the fixing assembly 31 is fixed to the top cover body 10. Thus, the sensor module 30 is fixed to the top cover body 10 by snap-fit. The installation method is simple and convenient, and it is easy to maintain and replace later.

[0055] In some preferred embodiments, please refer to Figure 2 , Figure 2 The diagram illustrates the structural relationship between the snap-fit ​​groove 211 and the snap-fit ​​portion 3111 in this embodiment of the present invention. Specifically, the first snap-fit ​​structure 21 includes a snap-fit ​​groove 211 formed on the upper surface of the pole post assembly 20 and / or the top cover body 10, and the second snap-fit ​​structure 311 includes a snap-fit ​​portion 3111 embedded in the snap-fit ​​groove 211. The snap-fit ​​portion 3111 at the first end of the fixing assembly 31 snaps into the snap-fit ​​groove 211 formed on the upper surface of the pole post assembly 20 and / or the top cover body 10, so that the sensor module 30 is fixedly snapped onto the upper surface of the top cover body 10. Furthermore, the pole assembly 20 includes a pole and an insulating member. The pole is installed in the first through hole 11 of the top cover body 10. The insulating member is sleeved on the outer periphery of the pole, and the bottom surface of the insulating member abuts against the upper surface of the top cover body 10. When the snap-fit ​​groove 211 is opened in the pole assembly 20, the snap-fit ​​groove 211 is opened from the bottom periphery of the insulating member near the second through hole 12. During installation, the inner sidewall of the snap-fit ​​groove 211 abuts against the outer periphery of the snap-fit ​​portion 3111 to fix and press the first end of the fixing component 31 onto the upper surface of the top cover body 10.

[0056] In some preferred embodiments, please refer to Figure 3 , Figure 3The diagram illustrates the structural relationship between the first limiting recess 14 and the fixing component 31 in this embodiment of the present invention. Specifically, when the snap-fit ​​groove 211 is formed on the upper surface of the top cover body 10, the upper surface of the top cover body 10 is provided with a first limiting recess 14 communicating with the snap-fit ​​groove 211. The first end of the fixing component 31 is embedded in the first limiting recess 14, and the upper surface of the first end of the fixing component 31 is flush with the upper surface of the top cover body 10. The first limiting recess 14 can prevent the first end of the fixing component 31 from protruding from the upper surface of the top cover body 10, so as to facilitate the attachment of the top patch on the upper surface of the top cover body 10, without increasing the thickness of the battery top cover, thus making the overall structure more compact. It is understandable that when the snap-fit ​​groove 211 is opened on the upper surface of the top cover body 10, during installation, the first end of the fixing component 31 can be embedded in the first limiting countersunk platform 14, so that the snap-fit ​​part 3111 snaps into the snap-fit ​​groove 211 which is connected to the first limiting countersunk platform 14, thereby fixing the fixing component 31 and the top cover body 10. Then, the insulating component is sleeved on the outer periphery of the pole post. Since the upper surface of the first end of the fixing component 31 is flush with the upper surface of the top cover body 10, the bottom surface of the insulating component can simultaneously abut against the upper surfaces of the top cover body 10 and the fixing component 31, thereby further fixing.

[0057] In some preferred embodiments, please refer to Figure 4 and Figure 5 , Figure 4 and Figure 5 The diagram illustrates the structural relationship between the third snap-fit ​​structure 212 and the fourth snap-fit ​​structure 3112 in this embodiment of the present invention. Specifically, the third snap-fit ​​structure 212 is provided on the inner wall of the snap-fit ​​groove 211, and the fourth snap-fit ​​structure 3112 is provided on the snap-fit ​​part 3111 to snap-fit ​​with the third snap-fit ​​structure 212. The fourth snap-fit ​​structure 3112 snaps into the third snap-fit ​​structure 212, thereby improving the snap-fit ​​stability between the snap-fit ​​part 3111 and the snap-fit ​​groove 211, and further improving the assembly reliability between the fixing component 31 and the top cover body 10, and / or between the fixing component 31 and the pole post assembly 20.

[0058] In some preferred embodiments, the third snap-fit ​​structure 212 includes a snap-fit ​​hole formed on the inner wall of the snap-fit ​​groove 211, and the fourth snap-fit ​​structure 3112 includes a snap-fit ​​post formed on the snap-fit ​​part 3111 and snap-fit ​​connected to the snap-fit ​​hole; and / or the third snap-fit ​​structure 212 includes a snap-fit ​​post formed on the inner wall of the snap-fit ​​groove 211, and the fourth snap-fit ​​structure 3112 includes a snap-fit ​​hole formed on the snap-fit ​​part 3111 and snap-fit ​​connected to the snap-fit ​​post. During installation, the snap-fit ​​part 3111 is first embedded in the snap-fit ​​groove 211, so that the snap-fit ​​post snaps into the snap-fit ​​hole, thereby enhancing the snap-fit ​​stability when the snap-fit ​​part 3111 snaps into the snap-fit ​​groove 211, and thus fixing the first end of the fixing component 31 to the upper surface of the pole post assembly 20 and / or the top cover body 10, improving the connection stability between the sensor module 30 and the top cover body 10, and / or between the sensor module 30 and the pole post assembly 20.

[0059] In some more preferred embodiments, please refer to Figure 6 , Figure 6 The diagram illustrates the structural relationship between the latching groove 131 and the latching part 3121 in this embodiment of the present invention. Specifically, a third through hole 15 is provided on the side of the second through hole 12 away from the first through hole 11 on the top cover body 10. The first latching structure 13 includes a latching groove 131 formed in the inner wall of the third through hole 15, and the second latching structure 312 includes a latching part 3121 that engages with the latching groove 131. The second end of the fixing component 31 is engaged with the latching groove 131 in the inner wall of the third through hole 15 through the latching part 3121, thereby fixing the second end of the fixing component 31 to the upper surface of the top cover body 10, further making the sensor module 30 more stably engaged with the upper surface of the top cover body 10.

[0060] Example 2:

[0061] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the battery top cover 1 of this utility model. Please refer to the appendix. Figure 6 ~Appendix Figure 7 .

[0062] Please see below. Figure 6 , Figure 6 The diagram illustrates the structural relationship between the explosion-proof component 40 and the top cover body 10 in this embodiment of the present invention. Specifically, the battery top cover 1 further includes the explosion-proof component 40, which includes an explosion-proof valve 41 and an explosion-proof membrane 42. The explosion-proof valve 41 is disposed in the third through hole 15, and the explosion-proof membrane 42 is installed on the upper surface of the top cover body 10 and covers the third through hole 15.

[0063] In this embodiment, the explosion-proof valve 41 is disposed in the third through hole 15, and the explosion-proof membrane 42 is installed on the upper surface of the top cover body 10 and covers the third through hole 15. When the internal gas pressure of the battery is too high, the explosion-proof valve 41 will be opened to quickly release the high-pressure gas inside the battery, thereby effectively preventing the battery from exploding due to excessive internal gas pressure or external impact.

[0064] In some preferred embodiments, please refer to Figure 7 , Figure 7 The diagram illustrates the structural relationship between the second limiting recess 16 and the fixing component 31 in this embodiment of the present invention. Specifically, a second limiting recess 16 communicating with a third through hole 15 is provided on the upper surface of the top cover body 10. The second end of the fixing component 31 is embedded in the second limiting recess 16, and the upper surface of the second end of the fixing component 31 is flush with the upper surface of the top cover body 10. The second limiting recess 16 can prevent the second end of the fixing component 31 from protruding from the upper surface of the top cover body 10, so as to facilitate the attachment of the top patch to the upper surface of the top cover body 10, without increasing the thickness of the battery top cover, thus making the overall structure more compact.

[0065] In some more preferred embodiments, please refer to Figure 6 , Figure 6 The diagram illustrates the structural relationship between the clearance opening 421 and the latching part 3121 in this embodiment of the present invention. Specifically, the explosion-proof film 42 has a clearance opening 421 for the clearance latching part 3121. When the second limiting countersunk platform 16 is not provided on the upper surface of the top cover body 10, the second end of the fixing component 31 will protrude from the upper surface of the top cover body 10, and the latching part 3121 of the second end of the fixing component 31 passes through the clearance opening 421 and engages with the latching groove 131 on the inner wall of the third through hole 15, thereby facilitating the installation of the explosion-proof film 42. It can be understood that when the second limiting countersunk platform 16 is provided on the upper surface of the top cover body 10, so that the upper surface of the second end of the fixing component 31 is flush with the upper surface of the top cover body 10, the explosion-proof film 42 can directly cover the third through hole 15 and simultaneously adhere to the upper surface of the top cover body 10 and the upper surface of the second end of the fixing component 31 without being affected by the latching part 3121.

[0066] Example 3:

[0067] This embodiment, based on the above embodiments, provides a battery 2. Please refer to the appendix. Figure 8 .

[0068] A battery 2 includes a housing 50, an electrode assembly 60, and the aforementioned battery top cover 1.

[0069] The housing 50 includes a receiving cavity 51 with an opening; an electrode assembly 60 is installed in the receiving cavity 51; and a battery top cover 1 closes to the opening.

[0070] In this embodiment, the electrode assembly 60 is a cell formed by winding or stacking a separator, a positive electrode, and a negative electrode. The battery 2 described above can be a lithium-ion battery or a sodium-ion battery.

[0071] In this invention, the battery 2 has a sensor assembly 32 connected to a fixing assembly 31. The bottom of the sensor assembly 32 is embedded in a second through hole 12 and has an air inlet 321, so that the sensor assembly 32 can obtain information such as the internal air pressure and / or temperature of the battery. The first end of the fixing assembly 31 is provided with a second snap-fit ​​structure 311, which snaps onto the first snap-fit ​​structure 21 on the upper surface of the terminal post assembly 20 and / or the top cover body 10, so that the first end of the fixing assembly 31 is installed on the top cover body 10. The second end of the fixing assembly 31 is provided with a second snap-fit ​​structure 312, which snaps onto the first snap-fit ​​structure 13 on the top cover body 10, so that the second end of the fixing assembly 31 is fixed to the top cover body 10. Thus, the sensor module 30 is fixed to the top cover body 10 by snap-fit. The installation method is simple and convenient, and it is easy to maintain and replace later.

[0072] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0074] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0075] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0076] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A battery top cover, characterized in that, include: The top cover body (10) has a first through hole (11) and a second through hole (12). A first buckle structure (13) is provided on the side of the second through hole (12) away from the first through hole (11). A pole post assembly (20) is installed in the first through hole (11), and a first snap-fit ​​structure (21) is provided on the upper surface of the pole post assembly (20) and / or the top cover body (10); and The sensor module (30) includes a fixing component (31) and a sensor component (32). The fixing component (31) includes a first end and a second end that are arranged opposite to each other along the length direction. The sensor component (32) is connected between the first end and the second end of the fixing component (31). The first end of the fixing component (31) is provided with a second snap-fit ​​structure (311) that snaps into the first snap-fit ​​structure (21). The second end of the fixing component (31) is provided with a second snap-fit ​​structure (312) that snaps into the first snap-fit ​​structure (13). The bottom of the sensor component (32) is embedded in the second through hole (12). The bottom of the sensor component (32) is provided with an air inlet (321).

2. The battery top cover according to claim 1, characterized in that, The first snap-fit ​​structure (21) includes a snap-fit ​​groove (211) formed on the upper surface of the pole assembly (20) and / or the top cover body (10), and the second snap-fit ​​structure (311) includes a snap-fit ​​portion (3111) embedded in the snap-fit ​​groove (211).

3. The battery top cover according to claim 2, characterized in that, When the snap-fit ​​groove (211) is opened on the upper surface of the top cover body (10), a first limiting recess (14) communicating with the snap-fit ​​groove (211) is opened on the upper surface of the top cover body (10), the first end of the fixing component (31) is embedded in the first limiting recess (14), and the upper surface of the first end of the fixing component (31) is flush with the upper surface of the top cover body (10).

4. The battery top cover according to claim 2 or 3, characterized in that, The inner wall of the snap-fit ​​groove (211) is provided with a third snap-fit ​​structure (212), and the snap-fit ​​part (3111) is provided with a fourth snap-fit ​​structure (3112) that snaps into the third snap-fit ​​structure (212).

5. The battery top cover according to claim 4, characterized in that, The third snap-fit ​​structure (212) includes a snap-fit ​​hole formed on the inner wall of the snap-fit ​​groove (211), and the fourth snap-fit ​​structure (3112) includes a snap-fit ​​post disposed on the snap-fit ​​part (3111) and snap-fit ​​connected to the snap-fit ​​hole (213); and / or The third snap-fit ​​structure (212) includes a snap-fit ​​post disposed on the inner wall of the snap-fit ​​groove (211), and the fourth snap-fit ​​structure (3112) includes a snap-fit ​​hole opened on the snap-fit ​​part (3111) and snap-fit ​​connected to the snap-fit ​​post (3113).

6. The battery top cover according to claim 1, characterized in that, The top cover body (10) has a third through hole (15) on the side of the second through hole (12) away from the first through hole (11). The first buckle structure (13) includes a buckle groove (131) formed on the inner wall of the third through hole (15). The second buckle structure (312) includes a buckle part (3121) that engages with the buckle groove (131).

7. The battery top cover according to claim 6, characterized in that, The battery top cover (1) also includes an explosion-proof component (40), which includes an explosion-proof valve (41) and an explosion-proof membrane (42). The explosion-proof valve (41) is disposed in the third through hole (15), and the explosion-proof membrane (42) is installed on the upper surface of the top cover body (10) and covers the third through hole (15).

8. The battery top cover according to claim 6 or 7, characterized in that, The top cover body (10) has a second limiting platform (16) that communicates with the third through hole (15) on its upper surface. The second end of the fixing component (31) is embedded in the second limiting platform (16), and the upper surface of the second end of the fixing component (31) is flush with the upper surface of the top cover body (10).

9. The battery top cover according to claim 7, characterized in that, The explosion-proof film (42) has an avoidance opening (421) to avoid the buckle part (3121).

10. A battery, characterized in that, include: The housing (50) includes a receiving cavity (51) with an opening; An electrode assembly (60) is installed in the accommodating cavity (51); and The battery top cover (1) according to any one of claims 1 to 9; the battery top cover (1) covers the opening.

Images