Battery top cover and battery

Abstract

The present application relates to the technical field of batteries, and in particular, to a battery top cover and a battery. The battery top cover comprises: a top cover plate provided with a mounting hole; a sensor body having an accommodating cavity therein, wherein a sensor is provided in the accommodating cavity, a terminal is provided on the sensor body, and the terminal is electrically connected to the sensor; and a mounting part, one end of which is provided with an elastic snap protruding radially outward, and the other end of which is connected to the sensor body, wherein a through hole in communication with the accommodating cavity is formed inside the mounting portion so as to extend through the mounting portion in an axial direction. The mounting part is inserted into the mounting hole, a bottom surface of the sensor body abuts against a top surface of the top cover plate, and a top surface of the elastic snap abuts against a bottom surface of the top cover plate. The battery top cover and the battery of the present application can reduce production costs and maintenance costs.

Description

A battery top cover and battery

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202423315277.1, filed on December 31, 2024, entitled “A Battery Top Cover and Battery”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of battery technology, and in particular to a battery top cover and a battery. Background Technology

[0004] In recent years, the lithium-ion battery energy storage market has grown rapidly, and safety issues have become increasingly prominent. Existing battery management system (BMS) technology is no longer sufficient to meet the urgent need for accurate identification and early warning of battery safety hazards. The introduction of sensor monitoring systems based on individual battery cells can provide effective auxiliary monitoring for BMS technology.

[0005] In existing technologies, to actively monitor changes in internal battery pressure and temperature, sensors are typically used to collect this information. One specific approach involves welding the sensor to the battery's top cover and connecting it to the battery's interior to collect pressure and temperature data. However, the sensor's housing is usually a single unit, making replacement and repair difficult once welded to the battery top cover, thus increasing production and maintenance costs.

[0006] Utility Model Content

[0007] To address the aforementioned issues, this application proposes a battery top cover and a battery that can reduce the production and maintenance costs of the battery top cover and the battery.

[0008] In a first aspect, this application provides a battery top cover, comprising:

[0009] Top cover plate, with mounting holes;

[0010] A sensor body has an internal cavity containing a sensor. The sensor body has terminals electrically connected to the sensor.

[0011] The mounting part has an elastic buckle that protrudes outward in a radial direction at one end and is connected to the sensor body at the other end. The interior of the mounting part has a through hole that communicates with the receiving cavity in an axial direction.

[0012] The mounting part is inserted into the mounting hole, the bottom surface of the sensor body abuts against the top surface of the top cover plate, and the top surface of the elastic buckle abuts against the bottom surface of the top cover plate.

[0013] In some embodiments, the mounting portion includes an elastic snap-fit ​​member and a support member. One end of the elastic snap-fit ​​member is provided with an elastic buckle that protrudes radially outward. One end of the elastic snap-fit ​​member is inserted into the mounting hole. The interior of the elastic snap-fit ​​member is provided with a first through hole that extends axially.

[0014] One end of the support member passes through the first through hole of the elastic snap-fit ​​member and abuts against the wall of the first through hole. The other end of the support member is connected to the sensor body. The support member has a second through hole that runs through it axially. The second through hole forms the through hole that communicates with the receiving cavity.

[0015] In this embodiment, the elastic snap-fit ​​component has a first through hole inside, and the support component has a second through hole inside. The support component supports the wall of the first through hole. Due to the support of the support component, the elastic snap-fit ​​is difficult to deform inward, thereby preventing the elastic snap-fit ​​from disengaging from the top cover plate and achieving an anti-dislodgement effect. Furthermore, the receiving cavity can communicate with the inside of the battery through the second through hole, so that the sensors inside the receiving cavity can collect internal temperature and pressure data of the battery.

[0016] In some embodiments, a plurality of limiting protrusions are provided on the outer wall of one end of the support member, and the support member abuts tightly against the wall of the first through hole through the limiting protrusions.

[0017] In this embodiment, the limiting protrusion ring can restrict the sliding of the support member within the first through hole, making it less likely for the support member to detach from the elastic snap-fit ​​member, thereby improving the connection stability between the support member and the elastic snap-fit ​​member.

[0018] In some embodiments, the limiting protrusions include at least two, and the at least two limiting protrusions are distributed at intervals along the axial direction of the support.

[0019] In this embodiment, the support member is provided with at least two axially spaced limiting protrusions, which makes the support member less likely to detach from the elastic snap-fit ​​member, thereby further improving the connection reliability between the support member and the elastic snap-fit ​​member.

[0020] In some embodiments, the other end of the elastic snap-fit ​​member away from the elastic buckle is provided with a positioning platform that protrudes radially outward, the bottom surface of the positioning platform abuts against the top surface of the top cover plate, and the bottom surface of the sensor body abuts against the top surface of the positioning platform.

[0021] In this embodiment, a positioning platform is provided at the end of the elastic snap fastener away from the elastic buckle, so that the connection between the elastic snap fastener and the top cover plate can be more stable, thereby improving the connection reliability between the elastic snap fastener and the top cover plate.

[0022] In some embodiments, the sensor body includes a base and a cover, the receiving cavity is disposed inside the base, and the cover is detachably connected to the base;

[0023] The bottom surface of the base abuts against the top surface of the top cover plate. The bottom surface of the base has a third through hole that communicates with the first through hole. One end of the support member passes through the third through hole and the first through hole. The other end of the support member has an abutting part that protrudes radially outward. The abutting part abuts against the inner wall of the base near the third through hole.

[0024] In this embodiment, one end of the support member passes through the third through hole and the first through hole, and abuts against the inner wall of the base through the abutting part provided at the other end of the support member. This allows the support member to simultaneously limit the movement between the sensor body and the elastic snap-fit ​​member, thereby improving the connection reliability between the sensor body and the elastic snap-fit ​​member.

[0025] In some embodiments, the cover abuts against the base, the base is provided with a snap-fit ​​platform that protrudes radially outward, the cover is provided with at least two snap-fit ​​arms that are arranged opposite each other, and one end of each snap-fit ​​arm is provided with a snap-fit ​​part that engages with the snap-fit ​​platform.

[0026] In this embodiment, the snap-fit ​​part of the snap-fit ​​arm engages with the snap-fit ​​platform, which can improve the efficiency of disassembling and assembling the cover and the base, thereby reducing the production and maintenance costs of the battery top cover.

[0027] In some embodiments, the other end of the latching arm, away from the latching portion, extends to form a pressing portion that facilitates disengaging the latching portion from the latching state.

[0028] In this embodiment, a pressing part is provided at the other end of the snap-fit ​​arm away from the snap-fit ​​part, which can disengage the snap-fit ​​part from the snap-fit ​​state, thereby improving the detachability of the cover.

[0029] In some embodiments, a sealing gasket is provided at the abutment between the cover and the base.

[0030] In this embodiment, a sealing gasket is provided between the cover and the base, which can improve the sealing between the cover and the base, prevent leakage of substances inside the base, and also improve the reliability of the snap-fit ​​between the cover and the base.

[0031] In some embodiments, the support member is integrally formed with the sensor body, and the other end of the elastic snap member away from the elastic buckle extends toward the sensor body and is sleeved on the outside of the sensor body.

[0032] In this embodiment, the support member and the sensor body are integrally formed, and by attaching the other end of the elastic snap member away from the elastic buckle to the outside of the sensor body, the structural stability of the support member and the elastic snap member can be improved, thereby improving the connection reliability between the sensor body and the top cover plate.

[0033] Secondly, this application also discloses a battery, comprising:

[0034] The housing includes a receiving cavity with an opening;

[0035] Electrode assemblies are installed within the accommodating cavity; and

[0036] A battery top cover that closes onto the opening;

[0037] Wherein, the battery top cover is any of the battery top covers described above.

[0038] In summary, the battery top cover and battery of this application include a top cover plate, a sensor body, and a mounting part. The sensor body has an internal receiving cavity containing a sensor for collecting internal battery temperature and pressure data, and the data signals collected by the sensor can be transmitted to the battery management system via terminals. The mounting part is equipped with a spring-loaded buckle, which allows the mounting part to be quickly inserted into and engaged with the mounting hole on the top cover plate. Once inserted, the spring-loaded buckle secures the sensor body to the top cover plate, preventing it from falling off. When replacing the sensor body, the spring-loaded buckle's deformation capability allows the mounting part to be pulled out of the mounting hole on the top cover plate using external force, facilitating sensor body repair or replacement and reducing battery top cover maintenance costs.

[0039] Furthermore, the sensor body does not need to be welded to the top cover plate during the installation and production of the battery top cover, eliminating the welding process and making installation and production easier, which helps to reduce the production cost of the battery top cover.

[0040] Attached image description:

[0041] Figure 1 is a schematic diagram of the structure of the battery top cover provided in an embodiment of this application.

[0042] Figure 2 is an exploded view of the sensor body and mounting part in section A of Figure 1.

[0043] Figure 3 is a partial cross-sectional view of the battery top cover in Figure 1.

[0044] Figure 4 is another structural schematic diagram of the battery top cover provided in an embodiment of this application.

[0045] Figure 5 is an exploded view of the sensor body and mounting section in part B of Figure 4.

[0046] Figure 6 is a partial cross-sectional view of the battery top cover in Figure 4.

[0047] Figure 7 is a schematic diagram of the battery structure provided in an embodiment of this application.

[0048] Figure label:

[0049] 1. Top cover plate; 11. Mounting holes;

[0050] 2. Sensor body; 21. Receiving cavity; 22. Sensor; 23. Cover; 231. Snap-fit ​​arm; 232. Snap-fit ​​part; 233. Pressing part; 24. Base; 241. Snap-fit ​​platform; 25. Sealing gasket; 26. Third through hole;

[0051] 3. Mounting part; 31. Elastic snap-fit ​​part; 311. Elastic buckle; 312. Positioning platform; 32. Support part; 321. Limiting protrusion ring; 322. Abutting part; 33. First through hole; 34. Second through hole;

[0052] 4. Terminal;

[0053] 10. Housing; 20. Electrode assembly; 30. Battery top cover.

[0054] Detailed implementation method:

[0055] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0057] Please refer to Figure 1, which is a schematic diagram of the structure of the battery top cover provided in an embodiment of this application.

[0058] As shown in Figure 1, the battery top cover includes a top cover plate 1, a sensor body 2, and a mounting part 3.

[0059] In this application, the top cover plate 1 is used to be mounted on the top of the battery. The top cover plate 1 has a mounting hole 11, through which the sensor body 2 and the mounting part 3 can be mounted and fixed.

[0060] The top cover 1 can be configured as a plate structure and can be made of metal materials, such as aluminum, stainless steel or other metal alloys.

[0061] The sensor body 2 has a receiving cavity 21 inside, and a sensor 22 is housed within the receiving cavity 21. The sensor body 2 has a terminal 4, which is electrically connected to the sensor 22. The sensor 22 collects information such as pressure and temperature inside the battery and transmits it to an external battery management system via the terminal 4, enabling the battery management system to monitor the battery's internal pressure and temperature data. The sensor 22 and the terminal 4 can be electrically connected via a wire or a direct connection. The terminal 4 and the battery management system can transmit signals via wired or wireless means, such as a wireless communication module using wireless transmission protocols including but not limited to Bluetooth. This application does not limit the specific transmission method used between the terminal 4 and the battery management system.

[0062] One end of the mounting part 3 has a radially outwardly protruding elastic buckle 311, and the other end is connected to the sensor body 2. The interior of the mounting part 3 has a through hole communicating with the receiving cavity 21. The mounting part 3 can be made entirely of a rigid material, while the elastic buckle 311 is made of an elastic material such as rubber to ensure stable engagement with the top cover plate 1. The mounting part 3 is inserted into the mounting hole 11, with the bottom surface of the sensor body 2 abutting against the top surface of the top cover plate 1, and the top surface of the elastic buckle 311 abutting against the bottom surface of the top cover plate 1. This structure allows the sensor body 2 to be fixed to the top cover plate 1 via the mounting part 3.

[0063] In some embodiments, the sensor body 2 and the mounting part 3 can be integrally formed. The integral forming of the sensor body 2 and the mounting part 3 can improve the stability of the structure, thereby improving the connection reliability between the sensor body 2 and the top cover plate 1.

[0064] In other embodiments, the sensor body 2 and the mounting part 3 can be installed separately, and the sensor body 2 and the mounting part 3 can be connected by means of plugging, snapping, screwing, etc.

[0065] During assembly, the sensor body 2 can be connected to the mounting part 3, and then the mounting part 3 is pressed into the mounting hole 11 of the top cover plate 1. At this time, the elastic buckle 311 deforms and passes through the mounting hole 11, and returns to its shape after being fully inserted into the mounting hole 11, so that the bottom surface of the sensor body 2 abuts against the top surface of the top cover plate 1, and the top surface of the elastic buckle 311 abuts against the bottom surface of the top cover plate 1. At the same time, the sensor 22 can be installed into the receiving cavity 21 of the sensor body 2 and electrically connected to the terminal 4 on the sensor body 2. The sensor 22 in the receiving cavity 21 can collect the pressure and temperature signals inside the battery and transmit them to the external battery management system through the terminal 4.

[0066] The battery top cover and battery in this application utilize an elastic clip 311 to quickly insert and snap the mounting part 3 into the mounting hole 11 on the top cover plate 1. When the mounting part 3 is inserted into the mounting hole 11 of the top cover plate 1, the elastic clip 311 can fix the sensor body 2 to the top cover plate 1, preventing the sensor body 2 from falling off. When replacing the sensor body 2, because the elastic clip 311 has a certain deformation capability, the mounting part 3 can be pulled out of the mounting hole of the top cover plate 1 by external force, which facilitates the repair or replacement of the sensor body 2 and reduces the maintenance cost of the battery top cover.

[0067] Furthermore, the sensor body 2 does not need to be welded to the top cover plate 1 during the installation and production of the battery top cover, which eliminates the welding process, making installation and production easier and helping to reduce the production cost of the battery top cover.

[0068] Please refer to Figures 2 and 3. Figure 2 is an exploded view of the sensor body and mounting part in section A of Figure 1; Figure 3 is a partial cross-sectional view of the battery top cover in Figure 1.

[0069] As shown in Figures 2 and 3, in some embodiments, the mounting part 3 may include an elastic snap-fit ​​member 31 and a support member 32. One end of the elastic snap-fit ​​member 31 is provided with an elastic buckle 311 that protrudes radially outward. One end of the elastic snap-fit ​​member 31 is inserted into the mounting hole 11, and a first through hole 33 is provided axially through the interior of the elastic snap-fit ​​member 31. One end of the support member 32 passes through the first through hole 33 of the elastic snap-fit ​​member 31 and abuts against the wall of the first through hole 33. The other end of the support member 32 is connected to the sensor body 2, and a second through hole 34 is provided axially through the interior of the support member 32. The second through hole 34 forms a through hole communicating with the receiving cavity 21.

[0070] The elastic snap fastener 31 has a first through hole 33 inside, and the support member 32 has a second through hole 34 inside. The support member 32 supports the wall of the first through hole 33. Due to the support of the support member 32, the elastic snap fastener 311 is difficult to deform inward, thereby preventing the elastic snap fastener 311 from detaching from the snap-fit ​​state between it and the top cover plate 1, thus achieving an anti-detachment effect. In addition, the receiving cavity 21 can communicate with the inside of the battery through the second through hole 34, so that the sensor 22 inside the receiving cavity 21 can collect the internal temperature and pressure data of the battery.

[0071] In some embodiments, a plurality of limiting protrusions 321 are provided on the outer wall of one end of the support member 32, and the support member 32 abuts tightly against the wall of the first through hole 33 through the limiting protrusions 321. The limiting protrusions 321 can restrict the sliding of the support member 32 in the first through hole 33, making it difficult for the support member 32 to fall out of the elastic snap fastener 31, thereby improving the connection stability between the support member 32 and the elastic snap fastener 31.

[0072] Furthermore, the limiting protrusion 321 includes at least two, and the at least two limiting protrusions 321 are distributed at intervals along the axial direction of the support member 32. The support member 32 is provided with at least two limiting protrusions 321 distributed at intervals along the axial direction, which makes it more difficult for the support member 32 to loosen from the elastic snap-fit ​​member 31, and further improves the connection reliability between the support member 32 and the elastic snap-fit ​​member 31.

[0073] In some embodiments, the other end of the elastic snap fastener 31 away from the elastic buckle 311 is provided with a positioning platform 312 that protrudes radially outward. The bottom surface of the positioning platform 312 abuts against the top surface of the top cover plate 1, and the bottom surface of the sensor body 2 abuts against the top surface of the positioning platform 312.

[0074] The positioning platform 312 can increase the contact area with the top cover plate 1 and cooperate with the elastic buckle 311 to limit the elastic snap-fit ​​31 in the mounting hole 11 on the top cover plate 1, so that the top surface and bottom surface of the top cover plate 1 abut against the positioning platform 312 and the elastic buckle 311 respectively, avoiding relative displacement between the elastic snap-fit ​​31 and the top cover plate 1, thereby improving the connection reliability between the elastic snap-fit ​​31 and the top cover plate 1.

[0075] Specifically, the sensor body 2 includes a base 24 and a cover 23. A receiving cavity 21 is located inside the base 24, and the cover 23 is detachably connected to the base 24. The bottom surface of the base 24 abuts against the top surface of the top cover plate 1. The bottom surface of the base 24 has a third through hole 26 communicating with the first through hole 33. One end of the support member 32 passes through the third through hole 26 and the first through hole 33, and the other end of the support member 32 has an abutment portion 322 that protrudes radially outward. The abutment portion 322 abuts against the inner wall of the base 24 near the third through hole 26.

[0076] Terminal 4 is disposed on cover 23, sensor 22 is disposed in receiving cavity 21 of base 24 and communicates with the inside of battery through second through hole 34 of support member 32, thereby collecting temperature and pressure data inside battery.

[0077] During the installation of the battery top cover, the elastic buckle 311 of the elastic snap fastener 31 is first pressed into the mounting hole 11 of the top cover plate 1. Then, the third through hole 26 of the sensor body 2 is aligned with the first through hole 33, and one end of the support member 32 is inserted through the receiving cavity 21 into the third through hole 26 and the first through hole 33 until the abutting part 322 of the support member 32 abuts against the inner wall of the base 24 near the third through hole 26, thereby using the support member 32 to simultaneously limit the position of the sensor body 2 and the elastic snap fastener 31. Finally, the sensor 22 is placed inside the receiving cavity 21 and electrically connected to the terminal 4, and the cover 23 is finally installed on the base 24 to complete the installation of the battery top cover.

[0078] When it is necessary to remove the sensor body 2, the cover 23 and the sensor 22 in the receiving cavity 21 can be removed first, and then the sensor body 2 can be removed. At this time, the elastic snap fastener 31 loses the limit of the support 32, so that the elastic buckle 311 can deform inward under the action of external force, thereby allowing the elastic snap fastener 31 to disengage from the mounting hole 11 of the top cover plate 1.

[0079] The above-described structure facilitates the installation and removal of the sensor body 2, thereby improving the efficiency of assembly and disassembly between the sensor body 2 and the top cover plate 1. Furthermore, one end of the support member 32 passes through the third through hole 26 and the first through hole 33, and abuts against the inner wall of the base 24 via the abutting portion 322 located at the other end of the support member 32. This allows the support member 32 to simultaneously limit the movement between the sensor body 2 and the elastic snap-fit ​​member 31, improving the connection reliability between the sensor body 2 and the elastic snap-fit ​​member 31.

[0080] In some embodiments, the cover 23 abuts against the base 24, the base 24 is provided with a snap-fit ​​platform 241 that protrudes radially outward, and the cover 23 is provided with at least two snap-fit ​​arms 231 arranged opposite to each other, and one end of the snap-fit ​​arm 231 is provided with a snap-fit ​​part 232 that engages with the snap-fit ​​platform 241.

[0081] The latching part 232 of the latching arm 231 engages with the latching platform 241, which improves the efficiency of disassembling and assembling the cover 23 and the base 24. No welding is required between the cover 23 and the base 24, thereby reducing the production and maintenance costs of the battery top cover.

[0082] In a further implementation, the other end of the latching arm 231, away from the latching part 232, extends to form a pressing part 233, which facilitates the disengagement of the latching part 232 from the latching state. When the cover 23 needs to be disassembled, the pressing part 233 can be pressed, and the lever principle causes the latching part 232 of the latching arm 231 to deform outwards, thereby disengaging the latching part 232 from the latching table 241, completing the disassembly of the cover 23, and thus improving the detachability of the cover 23.

[0083] In some embodiments, a sealing gasket 25 is provided at the abutment between the cover 23 and the base 24. Providing a sealing gasket 25 between the cover 23 and the base 24 can improve the sealing performance between the cover 23 and the base 24, prevent leakage of substances inside the base, and also improve the reliability of the snap-fit ​​between the cover 23 and the base 24.

[0084] Please refer to Figures 4-6. Figure 4 is another structural schematic diagram of the battery top cover provided in the embodiment of this application; Figure 5 is an exploded structural schematic diagram of the sensor body and mounting part in part B of Figure 4; Figure 6 is a partial cross-sectional schematic diagram of the battery top cover in Figure 4.

[0085] In one implementation of this application, the battery top cover includes a top cover plate 1, a sensor body 2, and a mounting part 3. Specifically, the top cover plate 1 has a mounting hole 11. The sensor body 2 has a receiving cavity 21 inside, and a sensor 22 is disposed inside the receiving cavity 21. The sensor body 2 has a terminal 4, which is electrically connected to the sensor 22. The mounting part 3 has an elastic buckle 311 that protrudes radially outward at one end, and the other end is connected to the sensor body 2. The mounting part 3 has a through hole that communicates with the receiving cavity 21 through the interior along the axial direction. The mounting part 3 is inserted into the mounting hole 11, and the bottom surface of the sensor body 2 abuts against the top surface of the top cover plate 1, while the top surface of the elastic buckle 311 abuts against the bottom surface of the top cover plate 1.

[0086] Furthermore, the mounting part 3 includes an elastic snap-fit ​​member 31 and a support member 32, and the support member 32 is provided with a second through hole 34 and a limiting protrusion ring 321. The sensor body 2 includes a cover 23 and a base 24, and the receiving cavity 21 is provided inside the base 24. The cover 23 and the base 24 are detachably connected.

[0087] Furthermore, unlike the battery top cover in Figures 1 to 3, in this implementation, the support member 32 is integrally formed with the sensor body 2, and the other end of the elastic snap fastener 31 away from the elastic buckle 311 extends toward the sensor body 2 and is sleeved on the outside of the sensor body 2.

[0088] During installation, the elastic snap-fit ​​member 31 is first installed in the mounting hole 11 on the top cover plate 1. Then, one end of the support member 32 is inserted into the elastic snap-fit ​​member 31 through the first through hole 33. At this time, the other end of the elastic snap-fit ​​member 31 away from the elastic buckle 311 will also simultaneously engage with the sensor body 2 to fix the sensor body 2 to the top cover plate 1. Understandably, while the elastic snap-fit ​​member 31 fixes the sensor body 2, it also improves the structural stability between the support member 32 and the elastic snap-fit ​​member 31. At the same time, when it is necessary to remove the sensor body 2, it is only necessary to pull the sensor body 2 and the support member 32 out of the first through hole 33, which can relatively easily release the snap-fit ​​state of the elastic buckle 311, improving the efficiency of disassembly and assembly between the sensor body 2 and the top cover plate 1.

[0089] Please refer to Figure 7, which shows the structure of the battery provided in an embodiment of this application.

[0090] As shown in Figure 7, the battery includes a housing 10, an electrode assembly 20, and a battery top cover 30. Specifically, the housing 10 includes an accommodating cavity with an opening, and the electrode assembly 20 is installed in the accommodating cavity. The battery top cover 30 closes onto the opening, so that the battery top cover 30, the electrode assembly 20, and the housing 10 together constitute a complete battery.

[0091] The battery top cover 30 is used to install on the top of the battery. The battery top cover 30 may include any of the battery top cover 30 described in the above embodiments; the structural implementation of the battery top cover 30 will not be elaborated further in this application.

[0092] The battery in this application features a mounting portion with a flexible snap-fit. This snap-fit ​​allows the mounting portion to be quickly inserted into and snapped into the mounting holes on the battery's top cover, facilitating the repair or replacement of the sensor body and reducing the maintenance cost of the battery top cover. Furthermore, the sensor body does not need to be welded to the top cover during installation and production, eliminating the welding process and simplifying installation and production, thus further reducing the production cost of the battery top cover.

[0093] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0094] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0095] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0096] In the embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0097] In the embodiments of this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant information in a specific manner.

[0098] The embodiment numbers in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent device or process transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A battery top cover, characterized in that, include: Top cover plate (1) is provided with mounting holes (11); The sensor body (2) has an internal cavity (21) containing a sensor (22). The sensor body (2) has a terminal (4) electrically connected to the sensor (22). The mounting part (3) has an elastic buckle (311) that protrudes outward in a radial direction at one end and is connected to the sensor body (2) at the other end. The interior of the mounting part (3) has a through hole that communicates with the receiving cavity (21) in an axial direction. The mounting part (3) is inserted into the mounting hole (11), the bottom surface of the sensor body (2) abuts against the top surface of the top cover plate (1), and the top surface of the elastic buckle (311) abuts against the bottom surface of the top cover plate (1).

2. The battery top cover as described in claim 1, characterized in that, The mounting part (3) includes an elastic snap fastener (31) and a support member (32). One end of the elastic snap fastener (31) is provided with an elastic buckle (311) that protrudes outward in a radial direction. One end of the elastic snap fastener (31) is inserted into the mounting hole (11). The interior of the elastic snap fastener (31) is provided with a first through hole (33) that penetrates in an axial direction. One end of the support member (32) passes through the first through hole (33) of the elastic snap-fit ​​member (31) and abuts against the hole wall of the first through hole (33). The other end of the support member (32) is connected to the sensor body (2). The support member (32) has a second through hole (34) axially extending inside. The second through hole (34) forms the through hole that communicates with the receiving cavity (21).

3. The battery top cover as described in claim 2, characterized in that, The outer wall of one end of the support member (32) is provided with several limiting protrusions (321), and the support member (32) is in close contact with the wall of the first through hole (33) through the limiting protrusions (321).

4. The battery top cover as described in claim 3, characterized in that, The limiting protrusions (321) include at least two, and the at least two limiting protrusions (321) are distributed at intervals along the axial direction of the support (32).

5. The battery top cover as described in claim 2, characterized in that, The elastic snap fastener (31) has a positioning platform (312) that protrudes radially outward at the other end away from the elastic buckle (311). The bottom surface of the positioning platform (312) abuts against the top surface of the top cover plate (1), and the bottom surface of the sensor body (2) abuts against the top surface of the positioning platform (312).

6. The battery top cover as described in any one of claims 2-5, characterized in that, The sensor body (2) includes a base (24) and a cover (23), the receiving cavity (21) is located inside the base (24), and the cover (23) is detachably connected to the base (24); The bottom surface of the base (24) abuts against the top surface of the top cover plate (1). The bottom surface of the base (24) is provided with a third through hole (26) communicating with the first through hole (33). One end of the support member (32) passes through the third through hole (26) and the first through hole (33). The other end of the support member (32) is provided with an abutment part (322) that protrudes outward in a radial direction. The abutment part (322) abuts against the inner wall of the base (24) near the third through hole (26).

7. The battery top cover as described in claim 6, characterized in that, The cover (23) abuts against the base (24). The base (24) is provided with a snap-fit ​​platform (241) that protrudes outward in a radial direction. The cover (23) is provided with at least two snap-fit ​​arms (231) arranged opposite to each other. One end of the snap-fit ​​arm (231) is provided with a snap-fit ​​part (232) that engages with the snap-fit ​​platform (241).

8. The battery top cover as described in claim 7, characterized in that, The other end of the latching arm (231) away from the latching part (232) extends to form a pressing part (233) that facilitates disengaging the latching part (232) from the latching state.

9. The battery top cover as described in claim 7, characterized in that, A sealing gasket (25) is provided at the abutment between the cover (23) and the base (24).

10. The battery top cover as described in any one of claims 2-5, characterized in that, The support member (32) is integrally formed with the sensor body (2), and the other end of the elastic snap fastener (31) away from the elastic buckle (311) extends toward the sensor body (2) and is sleeved on the outside of the sensor body (2).

11. A battery, characterized in that, include: The housing (10) includes a receiving cavity with an opening; Electrode assembly (20), installed within the accommodating cavity; and A battery top cover (30) that closes to the opening; Wherein, the battery top cover (30) is the battery top cover (30) as described in any one of claims 1-10.

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