Cover plate and battery

Abstract

The utility model relates to a cover plate and a battery, the cover plate is used for the battery, the cover plate comprises a plate body and an adapter, the plate body is provided with an inner side and an outer side which are oppositely arranged, and the plate body is provided with a mounting hole penetrating through the outer side and the inner side; the adapter seat comprises a seat body and an adapter part, the seat body is fixedly mounted in the mounting hole, the seat body is provided with a through hole, the adapter part is fixedly mounted in the through hole so as to have a first side on the same side as the inner side and a second side on the same side as the outer side, the first side is used for being connected with a detection piece in the battery, and the second side is used for being connected with a detection device outside the battery. The adapter is integrated on the cover plate, and the adapter part is arranged on the adapter, so that a stable interface is provided for the connection of the battery internal detection piece and the battery external detection device, the mode that the cover plate is provided with a hole for leading a wire and then sealed by AB glue is replaced, and the sealing performance and the safety of the battery are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a cover plate and a battery. BACKGROUND

[0002] In related technologies, when manufacturing a temperature sensing battery or a three-electrode battery, a method of opening a shell or an explosion-proof valve is generally adopted to lead a temperature sensing wire or a copper wire connected with a reference electrode out of the opening, and then AB glue is used to seal the opening position. Opening the shell or the explosion-proof valve will damage the integrity of the battery shell, and it is difficult to achieve complete sealing by sealing the opening with AB glue, which will greatly reduce the sealing performance and safety of the battery. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide a cover plate and a battery to improve the sealing performance and safety of the battery, so as to at least partially solve the above technical problems.

[0004] In order to achieve the above purpose, according to a first aspect of the present application, a cover plate is provided for a battery, the cover plate comprising:

[0005] a plate body having an inner side and an outer side arranged oppositely, the plate body being provided with a mounting hole penetrating through the outer side and the inner side; and

[0006] an adapter seat comprising a seat body and an adapter part, the seat body being fixedly installed in the mounting hole, the seat body being provided with a through hole, and the adapter part being fixedly installed in the through hole to have a first side on the same side as the inner side and a second side on the same side as the outer side, the first side being used to connect a detection member in the battery, and the second side being used to connect a detection device outside the battery.

[0007] Optionally, the adapter seat is arranged to protrude from the outer side.

[0008] Optionally, the cover plate further comprises an electrode terminal arranged on the plate body, the electrode terminal being arranged spaced apart from the adapter seat.

[0009] The height of the adapter seat protruding from the outer side is less than the height of the electrode terminal protruding from the outer side.

[0010] Optionally, the spacing between the electrode terminal and the adapter seat is greater than or equal to 1.5 mm; and / or,

[0011] The height difference between the height of the adapter seat protruding from the outer side and the height of the electrode terminal protruding from the outer side is less than or equal to 5 mm.

[0012] Optionally, the second side and the inner wall of the through hole define a plug-in slot, and the plug-in slot is used to connect a plug-in plug connected with the detection device.

[0013] Optionally, the second side protrudes from the through hole to have an exposed part offset from the seat body, and the exposed part is used to wind a connecting line connected with the detection device.

[0014] Optionally, the exposed part is concavely provided with a groove for accommodating the connecting line connected with the detection device.

[0015] Optionally, the first side protrudes from the inner side, and the height of the first side protruding from the inner side is greater than or equal to 2 mm.

[0016] Optionally, a plurality of through holes are provided, the plurality of through holes are arranged at intervals, and a plurality of adapter parts corresponding to the plurality of through holes are provided, and the plurality of adapter parts are used to connect different detection members.

[0017] Optionally, the seat body is made of an insulating material, and the seat body is connected to the plate body in an interference fit.

[0018] Optionally, the seat body comprises an outer connecting part and an inner connecting part connected to each other, the outer connecting part is connected to the plate body, the inner connecting part is connected between the outer connecting part and the adapter part, the outer connecting part is made of a metal material, the outer connecting part is welded to the plate body, and the inner connecting part is made of an insulating material.

[0019] According to a second aspect of the present application, a battery is provided, comprising:

[0020] a shell having an opening;

[0021] a detection member arranged in the shell; and

[0022] a cover plate as described in any one of the above, the cover plate being arranged on the opening.

[0023] Optionally, the detection member is a temperature sensing wire, and a plurality of temperature sensing wires are provided.

[0024] The opening is provided with two openings, and the two openings are respectively arranged at two ends of the shell, and the cover plate is correspondingly provided with two adapter seats, and the adapter parts of the two adapter seats are respectively connected to part of the temperature sensing wires.

[0025] Optionally, the detection member is a temperature sensing wire, and the adapter part is integrally formed with the temperature sensing wire.

[0026] Optionally, the detection member is a reference electrode, and the reference electrode is welded to the adapter part.

[0027] Optionally, the detection member is a reference electrode, and the cross section of the adapter part is circular, and the diameter of the cross section of the adapter part is between 1 mm and 5 mm.

[0028] In the cover plate of the embodiment of the present application, the cover plate comprises a plate body, a mounting hole is arranged on the plate body, and an adapter seat is mounted. The seat body of the adapter seat is fixedly connected with the plate body, and the structure of the adapter seat can be accurately designed according to the shape and requirements of the mounting hole, so as to better fill the mounting hole, avoid the gap that may occur when the AB glue is sealed, improve the sealing performance, effectively prevent the battery from leaking liquid and gas, and make the internal environment of the battery more stable and safer. That is, in the cover plate of the embodiment of the present application, the adapter seat is integrated on the cover plate, and the adapter part is arranged on the adapter seat, so as to provide a stable interface for the connection between the internal detection part of the battery and the external detection device of the battery, replace the mode of opening a hole on the cover plate, passing a temperature sensing wire or copper wire, and then sealing the hole with AB glue, and improve the sealing performance and safety of the battery.

[0029] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0031] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0032] Figure 1 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure;

[0033] Figure 2 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure; Figure 1 is an enlarged view of part A in

[0034] Figure 3 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure; Figure 1 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure;

[0035] Figure 4 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure;

[0036] Figure 5 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure; Figure 4 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure;

[0037] Figure 6 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure; Figure 4 is a first structure perspective view of the cover plate provided in the exemplary embodiment of the present disclosure;

[0038] Figure 7is a second structure schematic view of the cover plate provided in the exemplary embodiment of the present disclosure;

[0039] Figure 8 is Figure 7 is a structure side view schematic diagram of the cover plate in

[0040] Figure 9 is a second structure schematic view of the battery provided in the exemplary embodiment of the present disclosure;

[0041] Figure 10 is a third structure schematic view of the battery provided in the exemplary embodiment of the present disclosure;

[0042] Figure 11 is Figure 10 is a partial B enlarged schematic view in

[0043] Explanation of reference signs:

[0044] 1000, battery; 100, cover plate; 1, plate body; 11, inner side; 12, outer side; 2, adapter seat; 21, seat body; 211, through hole; 212, plug-in slot; 22, adapter part; 221, first side; 222, second side; 223, exposed part; 2231, groove; 3, electrode terminal; 200, shell. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0046] The present application provides a cover plate and a battery, please refer to the drawings, Figures 1 to 3 is a first structure schematic view of the cover plate provided in the embodiments of the present application, Figure 7 and Figure 8 is a second structure schematic view of the cover plate provided in the embodiments of the present application.

[0047] See Figure 1 , Figure 2 and Figure 3 , the cover plate 100 is used for the battery 1000, and the cover plate 100 comprises a plate body 1 and an adapter seat 2.

[0048] The plate body 1 has an inner side 11 and an outer side 12 arranged oppositely, and the plate body 1 is provided with a mounting hole (not shown in the figure, understood by referring to the mounting position of the adapter seat 2) penetrating the outer side 12 and the inner side 11, so that the adapter seat 2 can be conveniently fixed on the plate body 1 through the mounting hole.

[0049] The adapter seat 2 includes a seat body 21 and an adapter part 22. The seat body 21 is fixedly installed in the mounting hole, and is provided with a through hole 211. The adapter part 22 is fixedly installed in the through hole 211, and has a first side 221 on the same side as the inner side 11, and a second side 222 on the same side as the outer side 12. The first side 221 is used to connect the detection member (temperature sensing wire or reference electrode) inside the battery 1000, and the second side 222 is used to connect the detection device outside the battery 1000. The seat body 21 is designed to be accurately installed in the mounting hole of the plate body 1, and can be tightly connected with the plate body 1. The adapter part 22 fixedly installed in the through hole 211 provides a stable interface, simplifies the process of leading out the temperature sensing wire or copper wire, and ensures that the temperature sensing wire or reference electrode can be safely and reliably connected to the external detection device.

[0050] In the technical solution of the present application, the cover plate 100 includes a plate body 1, a mounting hole is provided in the plate body 1, and an adapter seat 2 is installed in the mounting hole. The seat body 21 of the adapter seat 2 is fixedly connected with the plate body 1. The structure of the adapter seat 2 can be accurately designed according to the shape and requirements of the mounting hole, so as to better fill the mounting hole and avoid the gap that may occur when the AB glue is sealed, thereby improving the sealing performance and effectively preventing the battery 1000 from leaking liquid and gas. The internal environment of the battery 1000 is more stable and safer. That is, in the cover plate 100 of the embodiment of the present application, the adapter seat 2 is integrated on the cover plate 100, and the adapter part 22 is provided on the adapter seat 2, thereby providing a stable interface for the connection between the detection member inside the battery 1000 and the detection device outside the battery 1000. This replaces the method of opening a hole in the cover plate 100, leading out the temperature sensing wire or copper wire, and sealing the hole with AB glue, thereby improving the sealing performance and safety of the battery 1000.

[0051] In some embodiments, as shown in Figure 1 , the adapter seat 2 protrudes from the outer side 12 of the plate body 1. In these embodiments, the adapter seat 2 protrudes from the outer side 12 of the plate body 1. This design can provide additional space for connecting the detection device or performing other operations, making the connection and disassembly more convenient. In addition, the protruding adapter seat 2 is more easily visually recognized, which helps technicians quickly locate the correct interface position, reduces the possibility of misoperation, and increases user friendliness.

[0052] In some embodiments, as shown in Figure 1In these embodiments, the electrode terminal 3 is a positive electrode terminal or a negative electrode terminal, which is usually required to be connected to an external circuit, while the adapter seat 2 is used to connect the detection member in the battery 1000 and the auxiliary function of the detection device outside the battery 1000, and the distance between the two can reduce the risk of electrical short circuit, especially in the case of moisture or foreign matter invasion. Since the electrode terminal 3 is higher than the adapter seat 2 by a part, it makes it more convenient to connect the electrode, and the operator can more easily find and contact the electrode terminal 3. At the same time, it also reduces the possibility of mistakenly touching the adapter 22. While meeting the functional requirements of the adapter seat 2, the adapter seat 2 saves space with a smaller protruding height, avoids space interference with the electrode terminal 3 or other external equipment, and helps to optimize the space layout and improve the compactness and practicality of the entire battery 1000 structure in the limited external space.

[0053] In some embodiments, the distance between the electrode terminal 3 and the adapter seat 2 is greater than or equal to 1.5 mm. In these embodiments, the distance between the electrode terminal 3 and the adapter seat 2 is greater than or equal to 1.5 mm, which can further ensure that there is enough safety distance between the electrode terminal 3 and the adapter seat 2, and can effectively prevent electrical short circuit when dealing with some conditions that may occur in the battery 1000 (such as slight deformation, slight external extrusion, etc.). In the actual production process, such a distance requirement provides a certain fault tolerance space for the production link, and even if there is a certain error in the assembly process, it can still meet the requirement of reducing the risk of electrical short circuit.

[0054] In some embodiments, the height difference between the height of the adapter seat 2 protruding the outer side 12 and the height of the electrode terminal 3 protruding the outer side 12 is less than or equal to 5 mm. In these embodiments, the height difference of less than or equal to 5 mm helps to maintain a relatively coordinated relationship between the electrode terminal 3 and the adapter seat 2 while ensuring the functions of the electrode terminal 3 (such as convenient connection of external circuits) and the adapter seat 2 (such as connection of detection members and detection devices). Due to the limitation of the height difference, it avoids the case that the electrode terminal 3 is too high and occupies too much space, and also prevents the adapter seat 2 from being too low to affect its function implementation. This helps to make more reasonable space planning in the limited external space of the battery 1000, improves the space utilization, and makes the battery 1000 structure more compact.

[0055] The present application does not limit the specific connection mode of the adapter 22 and the external detection device, for example, the connection line of the external detection device is provided with a suction head or a clamping head, which is sucked or clamped on the adapter 22 to realize the connection of the adapter 22 and the external detection device.

[0056] In some embodiments, seeFigure 2 The second side 222 of the adapter 22 and the inner wall of the through hole 211 define a plug-in slot 212, which is used for connecting a plug-in connector of the detection device. In these embodiments, the second side 222 of the adapter 22 and the inner wall of the through hole 211 define a plug-in slot 212, which is provided with a specific shape and size, and can achieve good cooperation with the plug-in connector, provide stable mechanical support for the plug-in connector, prevent loosening or falling off due to vibration or movement, and reduce the risk of poor contact, ensuring the stability and accuracy of signal transmission. The plug-in connection mode greatly simplifies the installation and disassembly process of the detection device, without the need for complex tools or operation steps.

[0057] In some embodiments, see Figure 10 and Figure 11 The second side 222 of the adapter 22 protrudes from the through hole 211 to have an exposed part 223 offset from the seat body 21, and the exposed part 223 is used for winding a connecting line connected to the detection device. In these embodiments, the presence of the exposed part 223 provides a special winding area for the connecting line. When connecting the battery 1000 to the detection device, the operator can conveniently wind the connecting line on the exposed part 223, which can complete the connection operation more quickly and accurately compared to the case without such special design, thereby improving the detection efficiency.

[0058] In some embodiments, see Figure 11 The exposed part 223 is recessed with a groove 2231, and the groove 2231 is used for accommodating the connecting line connected to the detection device. In these embodiments, the groove 2231 provides a specific accommodation space for the connecting line. When the connecting line is wound on the exposed part 223 with the groove 2231, the side wall of the groove 2231 can limit the connecting line. Compared to the case without the groove 2231, the connecting line is less likely to fall off or loosen from the exposed part 223 when subjected to external forces (such as vibration, pulling, etc.), thereby greatly improving the stability of the connection between the adapter 22 and the detection device. Since the connecting line is stably wound, there is no intermittent poor contact phenomenon caused by loosening, which helps the detection device to accurately obtain the relevant parameters of the battery 1000, improves the reliability of the detection data, and thus better monitors and evaluates the state of the battery 1000. In addition, the connecting line is firmly accommodated in the groove 2231, avoiding the short circuit risk that may be caused by loosening or falling off, thereby improving the safety.

[0059] In some embodiments, see Figure 8In some embodiments, the first side 221 of the plate body 1 is provided with a protruding inner side 11, and the height of the first side 221 protruding inner side 11 is greater than or equal to 2mm. In these embodiments, the first side 221 protruding a certain height is more convenient for connecting with the detection member (temperature sensing wire or reference electrode), providing sufficient space and easy-to-operate positions for connection, and the sufficient protruding height helps to enhance the stability of the adapter 22 when connected with the detection member, reducing the problems of loose connection caused by improper connection or external force, and improving the safety and reliability of the battery 1000.

[0060] In some embodiments, see Figure 3 In some embodiments, the through hole 211 is provided with a plurality of through holes 211, and the plurality of through holes 211 are arranged at intervals. The adapter 22 is correspondingly provided with a plurality of adapters 22, and the plurality of adapters 22 are used to connect different detection members (such as temperature sensing wires). In these embodiments, by providing a plurality of adapters 22, the connection of a plurality of detection members (such as temperature sensing wires) is realized, which can realize independent monitoring of information at different positions inside the battery 1000, help to fully understand the situation of the battery 1000, and facilitate large-scale battery 1000 or precise control (such as temperature control) applications. Each adapter 22 connects different detection members (such as temperature sensing wires), which can avoid signal interference or measurement errors caused by sharing the same adapter 22, and this relative independence ensures that the data of each detection member (such as temperature sensing wire) is accurate and reliable, thereby improving the accuracy of the entire monitoring system. Since each adapter 22 has a clear position and function, this makes the arrangement process of the detection member (such as temperature sensing wire) more clear and orderly, reducing the possibility of line crossing and confusion. When a specific detection member needs to be replaced or maintained, the corresponding adapter 22 can be quickly located, simplifying the maintenance work. In some examples, each adapter 22 is used to connect a temperature sensing wire, and the adapter 22 and the temperature sensing wire are one-to-one, realizing more fine temperature monitoring, and improving the reliability and maintainability of the system.

[0061] In some embodiments, the seat body 21 is made of an insulating material, and is connected to the plate body 1 in an interference fit. In these embodiments, since the seat body 21 is made of an insulating material, it can effectively isolate the adapter 22 from the plate body 1, preventing any possible short circuit or leakage phenomenon, ensuring the safe operation of the battery 1000. The interference fit is a tight mechanical connection method that can provide very high tensile and torsional strength, ensuring that the seat body 21 is firmly fixed to the plate body 1. This connection method can withstand vibration, impact and other mechanical stresses, ensuring the long-term stable working performance of the adapter seat 2. The interference fit makes the seat body 21 and the plate body 1 form a tight contact surface, which helps to improve the overall sealing of the cover plate 100, preventing external substances such as water and dust from entering the inside of the battery 1000. Good sealing improves the safety of the battery 1000, prolongs the life of the battery 1000 and reduces the failure rate. Once the seat body 21 is pressed into the mounting hole, it will be automatically positioned and fixed due to the interference fit, without the need for additional fasteners (such as screws) or other complex assembly steps, which simplifies the production process, improves assembly efficiency, and also reduces manufacturing costs. In some examples, the seat body 21 is made of polyamide (PA, nylon), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), etc.

[0062] In some embodiments, the seat body 21 includes an outer part and an inner part connected to each other, the outer part is connected to the plate body 1, and the inner part is connected between the outer part and the adapter 22. The outer part is made of a metal material and is welded to the plate body 1, and the inner part is made of an insulating material. In these embodiments, the outer part is made of a metal material and is firmly connected to the plate body 1 by welding, which provides very high mechanical strength and durability, ensuring reliable fixation between the seat body 21 and the plate body 1. The inner part is made of an insulating material and can effectively isolate the adapter 22 from the outer part, preventing any possible short circuit or leakage phenomenon, ensuring the safe operation of the battery 1000. By combining the outer part made of a metal material with the inner part made of an insulating material, both high strength and stability of the structure are ensured, and necessary electrical isolation is achieved. This composite structure of the seat body 21 improves the safety and reliability of the battery 1000. In some examples, during the manufacturing process, the outer part and the adapter 22 can be placed as inserts into the mold, and then injection molding is performed to directly injection mold the inner part made of an insulating material between the outer part and the adapter 22. This method can ensure seamless connection between the three and has very high bonding strength.

[0063] According to a second aspect of the present application, see Figure 4 , Figure 5 and Figure 6The battery 1000 comprises a cover plate 100, a shell 200 and a detection element, the shell 200 has an opening, the detection element is located in the shell 200, and the cover plate 100 is arranged on the opening of the shell 200. The structure of the cover plate 100 is as described above. Since the battery 1000 adopts all the technical solutions of the above-mentioned embodiments, it at least has the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0064] In some embodiments, see Figure 4 , Figure 5 and Figure 6 , both ends of the shell 200 are provided with openings; the detection element is a temperature sensing wire, a plurality of temperature sensing wires are arranged in the shell 200, two cover plates 100 are arranged on both ends of the shell 200 respectively, and the adapter parts 22 of the two adapter sockets 2 are connected with part of the temperature sensing wires. In these embodiments, two cover plates 100 are provided, and the adapter sockets 2 on each cover plate 100 can be connected with part of the temperature sensing wires nearby. Such a layout helps to simplify the wiring mode of the temperature sensing wires. Compared with the mode in which all the temperature sensing wires are connected to one adapter socket 2, this scattered connection mode can reduce the entanglement and interference between the temperature sensing wires, and improve the stability and reliability of the connection of the temperature sensing wires. The mode in which the two adapter sockets 2 are connected with part of the temperature sensing wires respectively helps to more accurately obtain the temperature data of different regions. Since each adapter socket 2 can work independently, they can more targetedly collect data from the temperature sensing wires in different parts of the shell 200, which is beneficial to obtain more comprehensive and accurate battery 1000 temperature data, so as to better understand the temperature distribution inside the battery 1000, and provide more effective data support for the performance evaluation, safety evaluation and thermal management of the battery 1000. Since each adapter socket 2 is connected with part of the temperature sensing wires nearby, the length of each temperature sensing wire can be shorter. Shorter temperature sensing wires can reduce signal attenuation, improve temperature detection accuracy, and are less likely to be accidentally pulled or damaged due to excessive length, thereby improving the service life of the temperature sensing wires and the safety of the entire battery 1000.

[0065] In some embodiments, the detection element is a temperature sensing wire, and the adapter part 22 is integrally formed with the temperature sensing wire. In these embodiments, the adapter part 22 is integrally formed with the temperature sensing wire, that is, one end of the temperature sensing wire is embedded in the seat body 21, and the part of the temperature sensing wire embedded in the seat body 21 forms the adapter part 22, avoiding the connection loosening problem between the separate adapter part 22 and the temperature sensing wire caused by factors such as vibration and thermal expansion and contraction. During the use of the battery 1000, whether it is the bumps during transportation or the temperature change environment during the work of the battery 1000, such a structure can maintain good stability and reduce the risk of connection loosening between the temperature sensing wire and the adapter part 22, thereby improving the overall reliability of the battery 1000.

[0066] In some embodiments, the detection member is a reference electrode, and the adapter 22 is welded to the reference electrode. In these embodiments, the reference electrode is welded to the adapter 22, and the connection between the reference electrode and the adapter 22 is stable and not prone to loosening or breaking under various external factors; the reference electrode and the adapter 22 have good conductivity, which helps to accurately transmit electrical signals and improve the accuracy of obtaining the state information of the battery 1000, the welded connection has long-term reliability, avoids the influence of connection aging on performance, and can prolong the service life of the battery 1000 and reduce maintenance costs. Since the welded connection does not require additional connecting components, it also efficiently utilizes the space within the battery 1000, making the battery 1000 more compact.

[0067] In some embodiments, the detection member is a reference electrode, and the cross-section of the adapter 22 is circular, and the diameter of the cross-section of the adapter 22 is between 1 mm and 5 mm. In these embodiments, the circular adapter 22 has uniform electric field distribution, which can improve the stability and reliability of the electrical connection, and the diameter of 1 mm to 5 mm can ensure sufficient current carrying capacity, while avoiding the problems of space and cost caused by excessive size. The circular adapter 22 has uniform stress distribution, and the diameter of 1 mm to 5 mm can make it withstand certain stress without being easily damaged, which is suitable for various application scenarios. The circular adapter 22 is easy to manufacture and process, and the manufacturing process is feasible and cost-effective. In some examples, the material of the adapter 22 is copper, nickel, or the like.

[0068] In the description of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0069] In the above embodiments, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0070] The embodiments, implementation manners and related technical features of the present application can be combined, replaced or modified without conflict.

[0071] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present application, without departing from the technical solution of the present application, still falls within the scope of the technical solution of the present application.

Claims

1. A cover plate for a battery, characterized by The cover plate comprises: a plate body having an inner side and an outer side arranged oppositely, the plate body being provided with a mounting hole penetrating through the outer side and the inner side; and an adapter seat comprising a seat body and an adapter part, the seat body being fixedly mounted on the mounting hole, the seat body being provided with a through hole, the adapter part being fixedly mounted on the through hole to have a first side on the same side as the inner side and a second side on the same side as the outer side, the first side being used for connecting a detection element inside a battery, and the second side being used for connecting a detection device outside the battery.

2. The cover plate of claim 1, wherein The adapter seat protrudes from the outer side.

3. The cover plate of claim 2, wherein, The cover plate further comprises an electrode terminal provided on the plate body, the electrode terminal being arranged spaced apart from the adapter seat. The height of the adapter seat protruding from the outer side is less than the height of the electrode terminal protruding from the outer side.

4. The cover plate of claim 3, wherein, The distance between the electrode terminal and the adapter seat is greater than or equal to 1.5 mm; and / or The height difference between the height of the adapter seat protruding from the outer side and the height of the electrode terminal protruding from the outer side is less than or equal to 5 mm.

5. The cover plate of claim 1, wherein The second side and the inner wall of the through hole define a plug-in slot for connecting a plug-in connector of the detection device.

6. The cover plate of claim 1, wherein The second side protrudes from the through hole to have an exposed part staggered with the seat body, the exposed part being used for winding a connecting line connected with the detection device.

7. The cover plate of claim 6, wherein, The exposed part is recessed with a groove for accommodating the connecting line connected with the detection device.

8. The cover plate of claim 1, wherein, The first side protrudes from the inner side, and the height of the first side protruding from the inner side is greater than or equal to 2 mm.

9. The cover sheet according to any one of claims 1 to 8, wherein The through hole is provided with a plurality of through holes arranged spaced apart, and the adapter part is correspondingly provided with a plurality of adapter parts for connecting different detection elements.

10. The cover sheet according to any one of claims 1 to 8, wherein The seat body is made of insulating material and is connected to the plate body in an interference fit.

11. The cover sheet according to any one of claims 1 to 8, wherein The seat body comprises an outer connecting part and an inner connecting part connected to each other, the outer connecting part being connected to the plate body, the inner connecting part being connected between the outer connecting part and the adapter part, the outer connecting part being made of metal material and being welded to the plate body, and the inner connecting part being made of insulating material.

12. A battery, characterized by The cover plate comprises: a housing having an opening; a detection element provided in the housing; and the cover plate as claimed in any one of claims 1-11, the cover plate being provided on the opening.

13. The battery as claimed in claim 12, wherein the detection element is a temperature sensing wire, and the temperature sensing wire is provided with a plurality of temperature sensing wires; the opening is provided with two openings respectively provided at two ends of the housing, and the cover plate is correspondingly provided with two cover plates, and the adapter parts of the two adapter seats are respectively connected to part of the temperature sensing wires.

14. The battery of claim 12, wherein the battery is a lithium ion battery. The detection element is a temperature sensing wire, and the adapter part is integrally formed with the temperature sensing wire.

15. The battery of claim 12, wherein the battery is a lithium ion battery. The detection element is a reference electrode, and the reference electrode is welded to the adapter part.

16. The battery of claim 12, wherein the cathode comprises a lithium metal oxide. The detection element is a reference electrode, and the adapter part has a circular cross section with a diameter of 1-5 mm. The detection element is a reference electrode, and the adapter part has a circular cross section with a diameter of 1-5 mm.

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