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 sensor module, a limiting piece and a sealing piece, wherein a through hole is formed in the top cover body. An accommodating cavity is formed between the limiting piece and the top cover body, and the limiting piece is provided with a second limiting part and an opening communicated with the accommodating cavity; the sensor module is provided with a sensor base and a first limiting part arranged on the sensor base. The sensor base is embedded into the containing cavity from the opening, so that detachable connection between the sensor module and the top cover body is achieved, and follow-up maintenance and replacement are facilitated. And the first limiting part and the second limiting part are matched to prevent the sensor module and the limiting piece from easily loosening. Meanwhile, the sensor module is provided with an air inlet hole communicated with the through hole so as to collect internal information of the battery. The sealing piece is arranged between the sensor module and the top cover body.

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] During use, batteries generate significant amounts of heat and gas through charge-discharge cycles, posing substantial challenges to battery performance, safety, and maintenance. In particular, the battery expands as gas accumulates, impacting its reliability and lifespan. Current technologies often employ welded sensors to the battery cover to effectively monitor critical data such as internal temperature and pressure. However, this process is not only complex but also hinders subsequent sensor maintenance and replacement, ultimately compromising battery safety monitoring.

[0003] In conclusion, providing a battery cover that is easy to maintain is of great significance for improving battery safety and is a problem that relevant technical personnel urgently need to solve. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model provides a battery top cover. The top cover uses a limiting component to achieve a detachable connection between the sensor module and the top cover body, thereby solving the problem of sensor maintenance and replacement on the battery top cover and improving battery safety. In addition, a battery including this battery top cover can also be provided.

[0005] The technical effects to be achieved by this utility model are realized through the following aspects:

[0006] In a first aspect, this utility model provides a battery top cover, comprising:

[0007] A top cover body, wherein a through hole is provided on the top cover body;

[0008] A sensor module, comprising a sensor and a sensor base, wherein the bottom of the sensor is provided with an air inlet, the sensor base is arranged around the bottom of the sensor, and the sensor base is provided with a first limiting part;

[0009] A limiting member is provided on the top surface of the top cover body and surrounds the through hole. The limiting member and the top cover body enclose a receiving cavity. The limiting member is provided with a second limiting part and an opening opened along a first direction. The opening communicates with the receiving cavity. The sensor base is embedded into the receiving cavity through the opening along the first direction. The inner wall surface of the limiting member cooperates with the top surface of the top cover body to limit the sensor base. The first limiting part and the second limiting part cooperate to prevent the sensor base from coming out of the receiving cavity through the opening. The air inlet communicates with the through hole.

[0010] A sealing element is disposed between the sensor module and the top cover body and surrounds the through hole.

[0011] In some embodiments, the first direction is the length direction or width direction of the sensor base, the limiting member includes a side wall and a top wall, the side wall is connected to the top wall and the top cover body respectively, the opening is opened on the side wall, and the inner wall surface of the side wall and the inner wall surface of the top wall together constitute the inner wall surface of the limiting member.

[0012] In some embodiments, the first limiting portion includes a limiting block disposed on the outer surface of the sensor base and protruding therefrom, and the second limiting portion includes a first limiting hole correspondingly opened on the inner wall surface of the limiting member, and the limiting block is engaged in the first limiting hole to prevent the sensor base from coming out of the accommodating cavity from the opening.

[0013] In some embodiments, the first limiting portion includes the side of the sensor base, and the second limiting portion includes an abutting portion protruding from the top wall of the limiting member toward the top cover body. The opening is formed between the abutting portion and the top cover body, and the abutting portion abuts against the side of the sensor base to prevent the sensor base from dislodging from the accommodating cavity through the opening.

[0014] In some embodiments, the sidewall of the limiting member has a notch near the opening, so that when the sensor base is inserted into the receiving cavity from the opening along the first direction, the top wall of the limiting member near the opening can deform in a direction away from the top cover body.

[0015] In some embodiments, the first limiting portion includes the outer surface of the sensor base, and the second limiting portion includes the inner wall surface of the limiting member. The inner wall surface of the limiting member abuts tightly against the outer surface of the sensor base to prevent the sensor base from dislodging from the accommodating cavity through the opening.

[0016] Preferably, the top wall of the limiting member is provided with a clearance opening to avoid the sensor.

[0017] Preferably, a reinforcing rib is provided between the sensor and the sensor base, and a snap-fit ​​groove is provided on the limiting member facing the opening, and the sensor module is snapped into the snap-fit ​​groove by the reinforcing rib.

[0018] In some embodiments, the lower end of the sensor is provided with a pin portion, the air inlet extends to the lower end face of the pin portion, the bottom periphery of the sensor is provided with threads, the sensor base is provided with a threaded hole adapted to the threads, and the pin portion is inserted into the through hole.

[0019] In some embodiments, a second limiting hole is provided on the sensor base, and a limiting post is provided at the bottom of the sensor, the limiting post being engaged in the second limiting hole.

[0020] In some embodiments, the first direction is the height direction of the sensor base, the limiting member includes a side wall and a top wall, the side wall is connected to the top wall and the top cover body respectively, and the opening is formed on the top wall.

[0021] Preferably, the first limiting part includes a limiting block provided on the side of the sensor base and protruding therefrom, and the second limiting part includes a first limiting hole correspondingly opened on the inner wall surface of the side wall, and the limiting block is engaged in the first limiting hole to prevent the sensor base from coming out of the accommodating cavity from the opening.

[0022] Preferably, a groove is formed on the top surface of the top cover body around the through hole, and the sealing element is embedded in the groove.

[0023] Secondly, the present invention also provides a battery, including a battery body and a battery top cover disposed on the top of the battery body as described above.

[0024] In summary, this utility model has at least the following advantages:

[0025] 1. The battery top cover provided by this utility model achieves a detachable connection between the sensor module and the top cover body through a limiting member, thereby solving the problem of sensor maintenance and replacement on the battery top cover and improving battery safety. Specifically, the top cover body has a through hole for the sensor module to collect information, and the limiting member is used to limit the sensor module at the through hole. Specifically, a receiving cavity is formed between the limiting member and the top cover body. The limiting member has a second limiting part and an opening communicating with the receiving cavity. The sensor module includes a sensor base and a first limiting part disposed on the sensor base. The sensor base is inserted into the receiving cavity from the opening to achieve the limiting and detachable connection of the sensor module by the limiting member and the top cover body, facilitating subsequent maintenance and replacement. The first and second limiting parts cooperate to prevent the sensor module and the limiting member from easily loosening. Simultaneously, the sensor module, limited in the receiving cavity, has an air inlet communicating with the through hole to collect internal battery information. A sealing member is disposed between the sensor module and the top cover body to ensure the sealing of the battery top cover.

[0026] 2. This utility model also provides a battery including the battery top cover. The battery has a sensor module detachably connected to a limiting member on the battery top cover, which facilitates timely maintenance and replacement of the sensor module, thereby ensuring that internal battery information can be obtained promptly and accurately, ultimately achieving high safety. Attached Figure Description

[0027] Figure 1 This is an exploded view of the battery top cover structure of Embodiment 1 of this utility model;

[0028] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle;

[0029] Figure 3 This is a schematic diagram of the structure of the limiting member in Embodiment 1 of this utility model;

[0030] Figure 4 This is a schematic diagram of the sensor structure according to Embodiment 1 of this utility model;

[0031] Figure 5 This is an exploded view of the battery top cover structure of Embodiment 2 of this utility model;

[0032] Figure 6 This is a schematic diagram of the battery top cover of Embodiment 2 of this utility model;

[0033] Figure 7 for Figure 6 Enlarged schematic diagram of part B in the middle;

[0034] Figure 8 This is a schematic diagram of the limiting member in Embodiment 2 of this utility model;

[0035] Figure 9 This is an exploded view of the battery top cover structure of Embodiment 4 of this utility model;

[0036] Figure 10 for Figure 9 An enlarged schematic diagram of section C;

[0037] Figure 11 This is a schematic diagram of the limiting member in Embodiment 4 of this utility model.

[0038] Marked in the image:

[0039] 100. Battery top cover;

[0040] 1. Top cover body; 11. Through hole; 12. Groove;

[0041] 2. Sensor module; 21. Sensor; 211. Limiting post; 22. Sensor base; 221. Threaded hole; 222. Second limiting hole; 23. Air inlet; 24. First limiting part; 241. Limiting block; 25. Reinforcing rib; 26. Pin part; 27. Thread;

[0042] 3. Limiting component; 31. Second limiting part; 311. First limiting hole; 32. Side wall; 321. First side wall; 322. Second side wall; 323. Snap-fit ​​groove; 33. Top wall; 331. Abutting part; 34. Notch; 35. Clearance opening;

[0043] 4. Sealing components;

[0044] 5. Receptacle; 51. Opening. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] Please see the appendix Figure 1 To be continued Figure 11 The battery top cover 100 of this utility model includes a top cover body 1, a limiting member 3, a sensor module 2, and a sealing member 4.

[0048] The top cover body 1 has a through hole 11 to facilitate information collection by the sensor module 2. The sensor module 2 includes a sensor 21 and a sensor base 22 surrounding the bottom of the sensor 21. The sensor base 22 has a first limiting part 24, and the bottom of the sensor 21 has an air inlet 23. When the sensor module 2 is connected to the top cover body 1, the sensor 21 communicates with the through hole 11 through the air inlet 23 to collect information from inside the battery.

[0049] The sensor module 2 is detachably connected to the top cover body 1 via the limiting member 3. The limiting member 3 is disposed on the top surface of the top cover body 1 and surrounds the through hole 11. The limiting member 3 and the top cover body 1 enclose a receiving cavity 5, and the limiting member 3 is provided with a second limiting part 31 and an opening 51 opened along the first direction, the opening 51 communicating with the receiving cavity 5.

[0050] The sensor base 22 is inserted into the receiving cavity 5 through the opening 51 along the first direction. The inner wall surface of the limiting member 3 cooperates with the top surface of the top cover body 1 to limit the sensor base 22, thereby confining the sensor base 22 within the receiving cavity 5. At the same time, the first limiting part 24 and the second limiting part 31 cooperate to prevent the sensor base 22 from falling out of the receiving cavity 5 through the opening 51.

[0051] The sealing element 4 is located between the sensor module 2 and the top cover body 1 and surrounds the through hole 11. The sealing element 4 is used to seal between the sensor module 2 and the top cover body 1 to prevent external factors from affecting the information collection of the sensor module 2.

[0052] By moving the sensor base 22 along the first direction, the sensor module 2 can be inserted into the receiving cavity 5 from the opening 51, which can improve production efficiency. Furthermore, by eliminating the cooperation between the first limiting part 24 and the second limiting part 31, the sensor module 2 can be easily disassembled, which is beneficial for the maintenance and replacement of the sensor module 2, and thus beneficial for monitoring battery safety.

[0053] The structure of the battery top cover 100 will be illustrated below through specific embodiments.

[0054] Example 1:

[0055] Please refer to Figures 1 to 4 This embodiment provides a battery top cover 100, including a top cover body 1, a sensor module 2, a limiting member 3, and a sealing member 4.

[0056] The limiting member 3 includes a side wall 32 and a top wall 33. The two ends of the side wall 32 in the vertical direction are connected to the top wall 33 and the top cover body 1, respectively. The opening 51 is formed on the side wall 32. The inner wall surface of the side wall 32 and the inner wall surface of the top wall 33 together constitute the inner wall surface of the limiting member 3.

[0057] Specifically, the sidewall 32 includes two opposing first sidewalls 321, the first sidewalls 321 being perpendicular to the top surface of the top cover body 1, and the top wall 33 being parallel to the top surface of the top cover body 1. A second sidewall 322 connects the two first sidewalls 321. The first sidewalls 321, the second sidewalls 322, the top wall 33, and the top cover body 1 together form a receiving cavity 5. At the end opposite to the second sidewall 322, an opening 51 is provided between the two first sidewalls 321, and the opening 51 communicates with the receiving cavity 5. A second limiting part 31 for cooperating with the sensor module 2 is provided on the first sidewall 321, the second sidewall 322, or the top wall 33.

[0058] The top cover body 1 has a through hole 11. When the limiting member 3 is fixed on the top cover body 1, the through hole 11 is connected to the accommodating cavity 5.

[0059] The sensor module 2 includes a sensor 21 and a sensor base 22 surrounding the bottom of the sensor 21. The sensor base 22 has a first limiting part 24. During installation, the sensor base 22 moves from the opening 51 towards the receiving cavity 5 until the first limiting part 24 and the second limiting part 31 engage, thus fixing the sensor module 2 to the limiting member 3. At this time, the inner wall surfaces of the first side wall 321, the second side wall 322, and the top wall 33 near the receiving cavity 5 constitute the inner wall surface of the limiting member 3. The sensor base 22 is limited above the through hole 11 by the inner wall surface of the limiting member 3 and the top surface of the top cover body 1. Simultaneously, the sensor 21 has an air inlet 23, which communicates with the through hole 11 for collecting information from inside the battery. Furthermore, to prevent external interference with the information collection of the sensor module 2, a sealing member 4 is placed between the sensor module 2 and the top cover body 1 and surrounds the through hole 11 to achieve a seal between the sensor module 2 and the top cover body 1.

[0060] For ease of explanation, the X-axis is defined by the length of the sensor base 22, the Y-axis by the width of the sensor base 22, and the Z-axis by the direction perpendicular to the XY plane. The X-axis, Y-axis, and Z-axis are all perpendicular to each other.

[0061] In this embodiment, two first sidewalls 321 are distributed in a second direction, and a second sidewall 322 connects the adjacent first sidewalls 321. At the end opposite to the second sidewall 322, an opening 51 is formed between the two first sidewalls 321, the size of which is adapted to the length of the sensor base 22. It should be noted that the first direction is the direction extending along the width of the sensor base 22, i.e., the Y-axis; the second direction is the direction extending along the length of the sensor base 22, i.e., the X-axis.

[0062] The sensor module 2 is positioned at the limiting member 3 by the sensor base 22. Specifically, the sensor base 22 moves from the opening 51 toward the receiving cavity 5 along the length side, that is, along the Y-axis, until the first limiting part 24 and the second limiting part 31 engage.

[0063] Preferably, the first limiting part 24 includes a limiting block 241 protruding from the outer surface of the sensor base 22. The second limiting part 31 includes a first limiting hole 311 provided on the side wall 32 or the top wall 33, and the limiting block 241 is engaged in the first limiting hole 311 to prevent the sensor base 22 from disengaging from the receiving cavity 5 at the opening 51. In this embodiment, the first limiting hole 311 is provided on the top wall 33 of the limiting member 3, and the limiting block 241 is provided on the top surface of the sensor base 22.

[0064] Preferably, the top wall 33 of the limiting member 3 is provided with an avoidance opening 35 for the sensor 21 to ensure that the sensor base 22 can be smoothly embedded into the receiving cavity 5.

[0065] Preferably, in order to facilitate the connection between the sensor module 2 and the limiting member 3 and to connect the air inlet 23 of the sensor 21 with the through hole 11, the sensor 21 and the sensor base 22 are detachably connected.

[0066] In this embodiment, the bottom periphery of the sensor 21 is provided with a thread 27, and the lower end of the sensor 21 is provided with a downwardly extending pin portion 26, with the thread 27 located above the pin portion 26. The sensor base 22 is provided with a threaded hole 221 adapted to the thread 27. The sensor 21 is connected to the sensor base 22 through the cooperation of the thread 27 and the threaded hole 221, and the pin portion 26 passes through the threaded hole 221 and is inserted into the through hole 11 on the top cover body 1. The air inlet 23 extends to the lower end face of the pin portion 26 so that the air inlet 23 communicates with the through hole 11. When installing the sensor module 2, first insert the sensor base 22 into the receiving cavity 5 through the opening 51 along the first direction, then rotate the sensor 21 to make the sensor 21 and the sensor base 22 threadedly connected, and insert the pin part 26 into the through hole 11 on the top cover body 1. This avoids the problem of interference between the pin part 26 and the top cover body 1 when the sensor base 22 is inserted into the receiving cavity 5 through the opening 51 along the first direction in the integrated sensor module 2.

[0067] In some embodiments, a second limiting hole 222 is provided on the sensor base 22, and a limiting post 211 is provided at the bottom of the sensor 21. When the sensor 21 is rotated to the position, the limiting post 211 is engaged in the second limiting hole 222, thereby preventing relative rotation between the sensor 21 and the sensor base 22 after the sensor 21 and the sensor base 22 are threadedly connected, thus ensuring the stability of the threaded connection between the sensor 21 and the sensor base 22.

[0068] Preferably, to prevent interference between the sealing member 4 and the top cover body 1 when the sensor base 22 is inserted into the receiving cavity 5 from the opening 51 along the first direction, a groove 12 is provided on the top surface of the top cover body 1 around the through hole 11, and the sealing member 4 is embedded in the groove 12. In this embodiment, the mutual cooperation between the height of the thread 27 at the bottom of the sensor 21 and the thickness of the sealing member 4 ensures that when the sensor 21 is rotated into place, the pin portion 26 is inserted into the through hole 11, and the sealing member 4 is compressed between the groove 12 and the sensor 21, thereby achieving a sealing effect between the bottom of the sensor 21 and the top cover body 1.

[0069] It is understood that in some embodiments, the first direction may also be the direction in which the length of the sensor base 22 lies.

[0070] Example 2:

[0071] The difference between this embodiment and Embodiment 1 is that this embodiment proposes a different structure for the limiting member 3. For similarities, please refer to Embodiment 1; the differences are explained below.

[0072] Please refer to the attached document. Figure 5 To be continued Figure 8 In this embodiment, the first limiting part 24 includes the side of the sensor base 22, and the second limiting part 31 includes an abutting part 331 that protrudes from the top wall 33 of the limiting member 3 toward the top cover body 1. An opening 51 is formed between the abutting part 331 and the top cover body 1. The abutting part 331 abuts against the side of the sensor base 22 to prevent the sensor base 22 from coming out of the accommodating cavity 5 through the opening 51.

[0073] The limiting member 3 includes a second sidewall 322 extending along the X-axis and a top wall 33 extending from the second sidewall 322 along the Y-axis, with the two top walls 33 connected to the second sidewall 322. At the end away from the second sidewall 322, the top wall 33 protrudes towards the top cover body 1 to form an abutment portion 331, forming an opening 51 between the abutment portion 331 and the top cover body 1. When the sensor base 22 is confined within the receiving cavity 5, the side of the sensor base 22 near the opening 51 abuts against the inner side of the abutment portion 331, and the abutment portion 331 confines the sensor base 22, thereby preventing the sensor base 22 from detaching from the receiving cavity 5.

[0074] In some embodiments, the side wall 32 of the limiting member 3 has a notch 34 near the opening 51, so that when the sensor base 22 is inserted into the accommodating cavity 5 from the opening 51 along the first direction, the top wall 33 of the limiting member 3 near the opening 51 can deform in a direction away from the top cover body 1.

[0075] In this embodiment, the first sidewall 321 is connected between the second sidewall 322 and the top wall 33. Specifically, the first sidewall 321 has a notch 34 communicating with the opening 51 and the receiving cavity 5, so that when the sensor base 22 is inserted into the receiving cavity 5 along the first direction from the opening 51, since the height of the opening 51 is less than the height of the sensor base 22, the position of the top wall 33 of the limiting member 3 near the opening 51 can deform in a direction away from the top cover body 1, so that the abutment part 331 can avoid the sensor base 22, thereby allowing the sensor base 22 to be smoothly inserted into the receiving cavity 5. Then the abutment part 331 is reset and abuts against the side of the sensor base 22 near the opening 51, thereby preventing the sensor base 22 from coming out of the receiving cavity 5.

[0076] In this embodiment, the accommodating cavity 5 is formed by the top wall 33, the first side wall 321, the second side wall 322 and the top cover body 1.

[0077] Specifically, the inner wall surface of the top wall 33 abuts against the top surface of the sensor base 22, and together with the top surface of the top cover body 1, limits the sensor base 22 in the Z-axis direction. The inner wall surface of the first side wall 321 abuts against the side surface of the sensor base 22 in the X-axis direction, thus limiting the sensor base 22 in the X-axis direction. The inner wall surfaces of the second side wall 322 and the abutting part 331 abut against the side surface of the sensor base 22 in the Y-axis direction, thus limiting the sensor base 22 in the Y-axis direction.

[0078] In some embodiments, a reinforcing rib 25 is provided between the sensor 21 and the sensor base 22, and a snap-fit ​​groove 323 is provided on the limiting member 3 facing the opening 51. The sensor module 2 is snapped into the snap-fit ​​groove 323 by the reinforcing rib 25. In this embodiment, the reinforcing rib 25 can increase the structural strength of the sensor module 2, thereby increasing the service life of the sensor module 2. The second sidewall 322 is disposed opposite to the opening 51, and the snap-fit ​​groove 323 is provided on the side of the second sidewall 322 facing the opening 51. The snap-fit ​​groove 323 and the reinforcing rib 25 can limit the sensor base 22 in the X-axis direction.

[0079] Example 3:

[0080] The difference between this embodiment and Embodiment 1 is that this embodiment proposes a different structure for the limiting member 3. For similarities, please refer to Embodiment 1; the differences are explained below.

[0081] In this embodiment, the first limiting part 24 includes the outer surface of the sensor base 22, and the second limiting part 31 includes the inner wall surface of the limiting member 3. The inner wall surface of the limiting member 3 is in close contact with the outer surface of the sensor base 22 to prevent the sensor base 22 from coming out of the accommodating cavity 5 through the opening 51.

[0082] Similar to Embodiment 1, the limiting member 3 includes a first sidewall 321 and a top wall 33 extending along the Y-axis. The two first sidewalls 321 are arranged opposite each other, and the top wall 33 is connected between the two first sidewalls 321. The top wall 33 is positioned near the upper end of the first sidewalls 321, that is, the top wall 33 is suspended relative to the lower end of the first sidewalls 321. The first sidewalls 321 and the top wall 33 form a receiving cavity 5 between themselves and the top surface of the top cover body 1. At the same end of the two first sidewalls 321 along the Y-axis, an opening 51 communicating with the receiving cavity 5 is formed between the two first sidewalls 321. An avoidance opening 35 for the avoidance sensor 21 is formed on the top wall 33.

[0083] When the sensor base 22 is inserted into the receiving cavity 5 through the opening 51 along the first direction, since the height of the receiving cavity 5 is slightly less than the height of the sensor base 22, the top wall 33 can deform slightly in the direction away from the top cover body 1, thereby allowing the sensor base 22 to be inserted into the receiving cavity 5. After the sensor base 22 is inserted into the receiving cavity 5, the inner wall surface of the top wall 33 abuts tightly against the top surface of the sensor base 22, thereby preventing the sensor base 22 from coming out of the receiving cavity 5 through the opening 51.

[0084] Example 4:

[0085] The difference between this embodiment and Embodiment 1 is that this embodiment proposes a different structure for the limiting member 3. For similarities, please refer to Embodiment 1; the differences are explained below.

[0086] For ease of explanation, the X-axis is defined by the length of the sensor base 22, the Y-axis by the width of the sensor base 22, and the Z-axis by the direction perpendicular to the XY plane, wherein the X-axis, Y-axis, and Z-axis are all perpendicular to each other. In this embodiment, the first direction is the direction of the Z-axis.

[0087] Please refer to Figures 9 to 11 The limiting member 3 includes a side wall 32 and a top wall 33, with the side wall 32 connected to both the top wall 33 and the top cover body 1. An opening 51 is located on the top wall 33. The side wall 32 and the top surface of the top cover body 1 form a receiving cavity 5, with the opening 51 located at the upper end of the receiving cavity 5. During installation, the sensor base 22 moves from the opening 51 along the Z-axis towards the receiving cavity 5 until the first limiting part 24 and the second limiting part 31 engage, thus confining the sensor base 22 within the receiving cavity 5.

[0088] In some embodiments, the first limiting part 24 includes a limiting block 241 provided on the side of the sensor base 22 and protruding therefrom, and the second limiting part 31 includes a first limiting hole 311 corresponding to the inner wall surface of the side wall 32. The limiting block 241 is engaged in the first limiting hole 311 to prevent the sensor base 22 from coming out of the accommodating cavity 5 from the opening 51.

[0089] In this embodiment, the sidewall 32 can be further divided into a first sidewall 321 extending along the Y-axis and a second sidewall 322 extending along the X-axis. Two first limiting holes 311 are provided on each of the two second sidewalls 322. The sensor base 22 is provided with a limiting block 241 that matches the first limiting hole 311. The limiting block 241 engages within the first limiting hole 311 to limit the sensor base 22 within the accommodating cavity 5.

[0090] Example 5:

[0091] Based on the above, this embodiment provides a battery.

[0092] The battery includes a battery body and a battery top cover 100 covering the top of the battery body. The battery top cover 100 can be any of the battery top covers 100 provided in Embodiments 1 to 4, or it can be a battery top cover 100 obtained by improving or simply replacing the battery top cover 100 based on Embodiments 1 to 4.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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: Top cover body (1), the top cover body (1) is provided with a through hole (11); The sensor module (2) includes a sensor (21) and a sensor base (22). The bottom of the sensor (21) is provided with an air inlet (23). The sensor base (22) is arranged around the bottom of the sensor (21). The sensor base (22) is provided with a first limiting part (24). A limiting member (3) is provided on the top surface of the top cover body (1) and surrounds the through hole (11). The limiting member (3) and the top cover body (1) enclose a receiving cavity (5). The limiting member (3) is provided with a second limiting part (31) and an opening (51) opened along a first direction. The opening (51) communicates with the receiving cavity (5). The sensor base (22) is embedded into the receiving cavity (5) from the opening (51) along the first direction. The inner wall surface of the limiting member (3) cooperates with the top surface of the top cover body (1) to limit the sensor base (22). The first limiting part (24) cooperates with the second limiting part (31) to prevent the sensor base (22) from coming out of the receiving cavity (5) from the opening (51). The air inlet (23) communicates with the through hole (11). A sealing element (4) is disposed between the sensor module (2) and the top cover body (1) and surrounds the through hole (11).

2. The battery top cover according to claim 1, characterized in that, The first direction is the length or width direction of the sensor base (22). The limiting member (3) includes a side wall (32) and a top wall (33). The side wall (32) is connected to the top wall (33) and the top cover body (1) respectively. The opening (51) is opened on the side wall (32). The inner wall surface of the side wall (32) and the inner wall surface of the top wall (33) together constitute the inner wall surface of the limiting member (3).

3. The battery top cover according to claim 2, characterized in that, The first limiting part (24) includes a limiting block (241) provided on the outer surface of the sensor base (22) and protruding therefrom. The second limiting part (31) includes a first limiting hole (311) corresponding to the inner wall surface of the limiting member (3). The limiting block (241) is engaged in the first limiting hole (311) to prevent the sensor base (22) from coming out of the receiving cavity (5) from the opening (51).

4. The battery top cover according to claim 2, characterized in that, The first limiting part (24) includes the side of the sensor base (22), and the second limiting part (31) includes an abutment part (331) that protrudes from the top wall (33) of the limiting member (3) toward the top cover body (1). The opening (51) is formed between the abutment part (331) and the top cover body (1). The abutment part (331) abuts against the side of the sensor base (22) to prevent the sensor base (22) from coming out of the receiving cavity (5) through the opening (51).

5. The battery top cover according to claim 4, characterized in that, The side wall (32) of the limiting member (3) has a notch (34) near the opening (51) so that when the sensor base (22) is inserted into the accommodating cavity (5) from the opening (51) along the first direction, the top wall (33) of the limiting member (3) near the opening (51) can deform in a direction away from the top cover body (1).

6. The battery top cover according to claim 2, characterized in that, The first limiting part (24) includes the outer surface of the sensor base (22), and the second limiting part (31) includes the inner wall surface of the limiting member (3). The inner wall surface of the limiting member (3) is in close contact with the outer surface of the sensor base (22) to prevent the sensor base (22) from coming out of the accommodating cavity (5) through the opening (51).

7. The battery top cover according to any one of claims 2-6, characterized in that, The top wall (33) of the limiting member (3) is provided with a clearance opening (35) to avoid the sensor (21).

8. The battery top cover according to any one of claims 2-6, characterized in that, A reinforcing rib (25) is provided between the sensor (21) and the sensor base (22). The limiting member (3) has a snap-fit ​​groove (323) in the direction of the opening (51). The sensor module (2) is snapped into the snap-fit ​​groove (323) by the reinforcing rib (25).

9. The battery top cover according to any one of claims 1-6, characterized in that, The lower end of the sensor (21) is provided with a pin part (26), the air inlet (23) extends to the lower end face of the pin part (26), the bottom periphery of the sensor (21) is provided with a thread (27), the sensor base (22) is provided with a threaded hole (221) adapted to the thread (27), and the pin part (26) is inserted into the through hole (11).

10. The battery top cover according to claim 9, characterized in that, The sensor base (22) is provided with a second limiting hole (222), and the bottom of the sensor (21) is provided with a corresponding limiting post (211), which is engaged in the second limiting hole (222).

11. The battery top cover according to claim 1, characterized in that, The first direction is the height direction of the sensor base (22). The limiting member (3) includes a side wall (32) and a top wall (33). The side wall (32) is connected to the top wall (33) and the top cover body (1) respectively. The opening (51) is opened on the top wall (33).

12. The battery top cover according to claim 11, characterized in that, The first limiting part (24) includes a limiting block (241) provided on the side of the sensor base (22) and protruding therefrom. The second limiting part (31) includes a first limiting hole (311) corresponding to the inner wall surface of the side wall (32). The limiting block (241) is engaged in the first limiting hole (311) to prevent the sensor base (22) from coming out of the accommodating cavity (5) from the opening (51).

13. The battery top cover according to any one of claims 1-6 and 11-12, characterized in that, The top surface of the top cover body (1) is provided with a groove (12) surrounding the through hole (11), and the sealing element (4) is embedded in the groove (12).

14. A battery, characterized in that, The battery includes a battery body and a battery top cover (100) as described in any one of claims 1-13, which is disposed on the top of the battery body.

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