Battery top cover, battery cell, and battery module

Abstract

The present application relates to the technical field of battery production, and in particular to a battery top cover, a battery cell, and a battery module. The battery top cover of the present application comprises a top cover body and a monitoring module. A first connector is provided on the side wall of the monitoring module, the first connector is located on the outer side of the top cover body, and the first connector extends toward a corner position of the top cover body. In the present application, by arranging the positions of the monitoring module and the first connector, the first connector can be conveniently connected to an external connector such as a junction box of a battery module. Because the first connector extends toward the corner position of the top cover body, the first connector can be arranged at an edge of the battery top cover, so that the external connector can be conveniently connected to the first connector from the edge of the battery top cover. In addition, the first connector is prevented from being connected to a pole on the battery top cover, thereby ensuring circuit safety of the battery cell.

Description

Battery top cover, individual cells and battery modules

[0001] This application is based on and claims priority to Chinese Patent Application No. 202423315279.0, filed on December 31, 2024, entitled “Battery Top Cover, Single Cell and Battery Module”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of battery manufacturing technology, and in particular to a battery top cover, a single cell, and a battery module. Background Technology

[0003] In monitoring the air pressure or temperature of individual battery cells, the monitoring module is typically placed in the middle of the battery top cover to avoid connecting it directly to the battery terminals. However, this design makes wiring difficult when connecting the monitoring module to the battery management system of the battery module. Existing solutions involve embedding a wireless module within the individual battery cell's monitoring module to transmit the acquired monitoring data to the battery management system of the battery module. However, wireless transmission suffers from latency, and wireless signals are easily interfered with in the complex environment of battery modules, leading to inaccurate transmission of monitoring signals and potentially compromising the safety of the battery module. Summary of the Invention

[0004] To address the shortcomings of the prior art, this application provides a battery top cover, a single battery cell, and a battery module, which avoids the difficulties in wiring when connecting the monitoring module to the battery management system of the battery module, and the problem that the monitoring module's wireless module has difficulty in accurately transmitting monitoring signals.

[0005] The technical effects to be achieved in this application are realized through the following aspects:

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

[0007] The top cover body has a first mounting hole, which is located at a corner of the top cover body; and

[0008] A monitoring module is installed in the first mounting hole, and the monitoring module is used to monitor the internal status information of a single battery cell.

[0009] The monitoring module has a first connector on its side wall. The first connector is located on the outside of the top cover body and extends toward the corner of the top cover body.

[0010] In some implementations, the outer side of the top cover body is provided with a first slot, the first slot is connected to the first mounting hole, and the first connector of the monitoring module extends and is disposed in the first slot.

[0011] In some implementations, the monitoring module is further provided with a protective plate on its sidewall, which is located on both sides or around the first connector.

[0012] In some implementations, the top cover body includes a first insulating plate, a cover plate, and a second insulating plate. The cover plate is disposed at the upper end of the first insulating plate, and the second insulating plate is disposed at the upper end of the cover plate. The first mounting hole is disposed through the first insulating plate, the cover plate, and the second insulating plate.

[0013] In some implementations, the sidewall of the second insulating plate is provided with a clearance opening to avoid the first connector.

[0014] In some implementations, the top cover body is further provided with a second mounting hole, in which a pole post is installed, and the second mounting hole is provided through the first insulating plate, the cover plate and the second insulating plate.

[0015] In this implementation, the positioning of the monitoring module and the first connector within the battery top cover facilitates connection between the first connector and external connectors such as the battery module's junction box. Because the first connector extends towards the corner of the top cover body, it is positioned at the edge of the battery top cover, allowing external connectors to establish a connection with it from the edge. Simultaneously, it avoids connection between the first connector and the terminals on the battery top cover, ensuring the circuit safety of the individual battery cells.

[0016] Secondly, this application provides a single-cell battery, comprising:

[0017] The housing includes a receiving cavity with an opening;

[0018] Electrode assemblies are installed within the accommodating cavity; and

[0019] The aforementioned battery top cover closes to the opening.

[0020] In this implementation, a monitoring module monitors the internal status information of a single battery cell. The monitoring module is equipped with a first connector located on the outside of the single battery cell. This facilitates the connection between the external connector and the first connector from the edge of the battery top cover. At the same time, it prevents the first connector from connecting to the terminals on the battery top cover, thus ensuring the circuit safety of the single battery cell.

[0021] Thirdly, this application provides a battery module, including:

[0022] At least one of the aforementioned single-cell batteries; and

[0023] The junction box has at least one second connector, which is electrically connected to the first connector of the single battery cell, and the signal line of the second connector being electrically connected to the battery management system is housed in the junction box.

[0024] In some implementations, the junction box includes a battery docking layer and a signal transmission layer. The battery docking layer has at least one connector mounting portion and a first through hole communicating with the connector mounting portion. The signal transmission layer has a second through hole communicating with the first through hole. The second connector is mounted on the connector mounting portion, and the signal line electrically connected to the second connector passes through the first through hole and is housed in the second through hole.

[0025] In some implementations, the connector mounting portion is provided with at least one second slot, the second connector is located in the second slot, and the first through hole communicates with the second slot.

[0026] In some implementations, the connector mounting portion protrudes from the lower end of the battery mating layer and abuts against the first slot in the battery top cover to facilitate electrical connection between the second connector and the first connector.

[0027] In some implementations, the battery docking layer is detachably connected to the signal transmission layer, and the signal transmission layer has a groove at the connection between the second through hole and the first through hole.

[0028] In some implementations, when there are multiple signal lines electrically connected to the second connector, there are multiple first through holes and multiple second through holes. The multiple first through holes are arranged obliquely offset, and the multiple second through holes are arranged at intervals in the same direction.

[0029] In some implementations, when there are multiple individual batteries, the junction box is provided with multiple second connectors along the length direction of the junction box, the multiple individual batteries are arranged along the length direction of the junction box, the first connector of each individual battery is electrically connected to the corresponding second connector, and the signal line is laid along the length direction of the junction box.

[0030] In some implementations, the battery module uses a hub to collect the signal lines of multiple individual batteries. This allows the first connector of the monitoring module for each individual battery to be connected to the hub, which then connects to the battery management system. This design provides a reasonable wiring solution, avoiding the messy wiring caused by individual battery leads connected to the battery management system, and also preventing the inaccurate transmission of monitoring signals due to the use of wireless modules, thus improving the safety of the battery module.

[0031] In summary, this application has at least the following advantages:

[0032] 1. The battery top cover provided in this application, through the positioning of the monitoring module and the first connector, facilitates the connection of the first connector to external connectors such as the junction box of the battery module. Since the first connector extends towards the corner of the top cover body, it can be positioned at the edge of the battery top cover, making it easy for external connectors to establish a connection with the first connector from the edge of the battery top cover; at the same time, it avoids the first connector from connecting to the terminals on the battery top cover, ensuring the circuit safety of the individual battery cells.

[0033] 2. The single-cell battery provided in this application monitors the internal status information of the single-cell battery through a monitoring module. The monitoring module is equipped with a first connector, which is located on the outside of the single-cell battery. This facilitates the external connector to establish a connection with the first connector from the edge of the battery top cover. At the same time, it avoids the first connector from connecting to the terminal post on the battery top cover, thus ensuring the circuit safety of the single-cell battery.

[0034] 3. The battery module provided in this application can lead out the signal lines of the first connector of the monitoring module in one or more individual batteries according to the wiring of the hub box by setting up a hub box; thereby avoiding the circuit disorder caused by individual battery leads being connected to the battery management system, and avoiding the situation where the monitoring signal is difficult to transmit accurately due to the use of wireless modules, thus improving the safety of battery module use. Attached Figure Description

[0035] Figure 1 is a schematic diagram of the structure of the battery top cover in some embodiments;

[0036] Figure 2 is a schematic diagram of the explosion of the battery top cover shown in Figure 1;

[0037] Figure 3 is an explosion diagram of the monitoring module shown in Figure 2;

[0038] Figure 4 is an explosion diagram of the top cover body shown in Figure 2;

[0039] Figure 5 is a partial structural schematic diagram of the battery module in some embodiments;

[0040] Figure 6 is an exploded view of the junction box in the battery module shown in Figure 5;

[0041] Figure 7 is a partial structural diagram of the hub box in the battery module shown in Figure 5.

[0042] Marked in the image:

[0043] 10. Battery top cover;

[0044] 110. Top cover body; 111. First mounting hole; 112. First slot; 113. First insulating plate; 114. Cover plate; 115. Second insulating plate; 116. Clearance opening; 117. Terminal post;

[0045] 120. Monitoring module; 121. First connector; 122. Sensor module; 123. Mounting bracket; 124. Protection board; 125. First boss; 126. Second boss;

[0046] 20. Junction box;

[0047] 210. Battery mating layer; 211. Connector mounting part; 212. First through hole; 213. Second slot;

[0048] 220, Signal transmission layer; 221, Cable tray; 222, Second through hole;

[0049] 230. Second connector;

[0050] 240. Signal line. Embodiments of the present invention

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments.

[0052] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0053] Example 1:

[0054] Please refer to Figures 1 to 4. A battery top cover 10 of this application includes a top cover body 110 and a monitoring module 120.

[0055] Referring to Figures 1-4, Figures 1-2 illustrate the structural relationship between the top cover body 110 and the monitoring module 120 in the embodiments of this application, and Figures 3-4 illustrate the specific structure of the top cover body 110 and the monitoring module 120 in the embodiments of this application.

[0056] Specifically, the top cover body 110 is provided with a first mounting hole 111, which is located at the corner of the top cover body 110; in this embodiment, the corner of the top cover body 110 includes the edge or corner of the top cover body 110.

[0057] The monitoring module 120 is disposed in the first mounting hole 111. The monitoring module 120 is used to monitor the internal status information of the single cell. In this embodiment, the monitoring module 120 is installed in the first mounting hole 111. The lower end of the monitoring module 120 is connected to the inside of the single cell to monitor the internal status information of the single cell. The status information may be the gas pressure value or temperature value inside the single cell.

[0058] It should be noted that a first connector 121 is provided on the side wall of the monitoring module 120. The first connector 121 is located on the outer side of the top cover body 110 and extends towards the corner of the top cover body 110. In this embodiment, the first connector 121 is used to transmit the status information of the individual battery cells monitored and acquired by the monitoring module 120 to the battery management system of the battery module for processing. Furthermore, the positional arrangement of the monitoring module 120 and the first connector 121 facilitates the connection of the first connector 121 to external connectors such as the junction box of the battery module. In particular, since the first connector 121 extends towards the corner of the top cover body 110, it can be positioned at the edge of the battery top cover 10, making it easy for external connectors to establish a connection with the first connector 121 from the edge of the battery top cover 10; at the same time, it avoids the first connector 121 from connecting to the terminal post 117 on the battery top cover 10, ensuring the circuit safety of the individual battery cells.

[0059] In some implementations, the outer surface of the top cover body 110 is provided with a first slot 112, which communicates with the first mounting hole 111, and the first connector 121 of the monitoring module 120 extends and is disposed within the first slot 112. In this embodiment, the first connector 121 can be embedded in the first slot 112, which not only facilitates the connection of the first connector 121 with an external connector, but also provides protection for the first connector 121 through the first slot 112.

[0060] In some implementations, the monitoring module 120 is further provided with a protective plate 124 on its sidewall, which is located on both sides or around the first connector 121. In this embodiment, the protective plate 124 can extend outward from the sidewall of the monitoring module 120 and be parallel to the first connector 121. The protective plate 124 can be disposed on both sides or around the first connector 121, thereby better protecting the first connector 121. At the same time, the protective plate 124 can be enclosed with the first slot 112 of the top cover body 110 to form a slot space for the first connector 121, so that when the external connector is connected to the first connector 121 along the first slot 112, it can be inserted into the slot space to ensure the connection stability between the first connector 121 and the external connector.

[0061] Furthermore, it should be noted that the monitoring module 120 includes a mounting bracket 123 and a sensor module 122. The sensor module 122 is disposed inside the mounting bracket 123, and the free end of the first connector 121 protrudes from the outside of the mounting bracket 123 and is electrically connected to the sensor module 122. The sensor module 122 can be a barometric pressure sensor or a temperature sensor.

[0062] The side wall of the mounting bracket 123 of the monitoring module 120 of this application may also be provided with a first protrusion 125 and a second protrusion 126. The first protrusion 125 is provided at the upper end of the side wall of the mounting bracket 123, and the second protrusion 126 is provided at the lower end of the side wall of the mounting bracket 123. The mounting bracket 123 is engaged with the first mounting hole 111 through the first protrusion 125 and the second protrusion 126.

[0063] In some implementations, the top cover body 110 includes a first insulating plate 113, a cover plate 114, and a second insulating plate 115. The cover plate 114 is disposed at the upper end of the first insulating plate 113, and the second insulating plate 115 is disposed at the upper end of the cover plate 114. A first mounting hole 111 is provided through the first insulating plate 113, the cover plate 114, and the second insulating plate 115. In this embodiment, the first insulating plate 113 and the second insulating plate 115 can be insulating plastic parts or insulating rubber parts; the first insulating plate 113 and the cover plate 114, and the second insulating plate 115 and the cover plate 114 are sealed and fixedly connected. The first mounting hole 111 is provided through the first insulating plate 113, the cover plate 114, and the second insulating plate 115, so that when the monitoring module 120 is installed in the first mounting hole 111, the lower end of the monitoring module 120 extends out of the first insulating plate 113 and communicates with the inside of the single cell to monitor the status information such as the gas pressure or temperature value inside the single cell; the upper end of the monitoring module 120 passing through the second insulating plate 115 can also separate the monitoring module 120 from other structural components of the battery top cover 10 to avoid the risk of short circuit between the monitoring module 120 and other structural components.

[0064] Specifically, the monitoring module 120 can be installed in the first mounting hole 111 of the first insulating plate 113 and the cover plate 114, and then the second insulating plate 115 is injection molded. That is, the monitoring module 120 is snapped into the first mounting hole 111 by the first boss 125 and the second boss 126.

[0065] In some implementations, the sidewall of the second insulating plate 115 is provided with a clearance opening 116 to avoid the first connector 121. In this embodiment, by providing a clearance opening 116 on the second insulating plate 115, the first connector 121 can be led out from the clearance opening 116 and extended into the first slot 112, which facilitates the connection of the first connector 121 with an external connector.

[0066] In some implementations, the top cover body 110 is further provided with a second mounting hole, in which a terminal post 117 is installed. The second mounting hole penetrates the first insulating plate 113, the cover plate 114, and the second insulating plate 115. In this embodiment, the first mounting hole 111 and the second mounting hole can be provided on the same second insulating plate 115, and the first mounting hole 111 and the second mounting hole are spaced apart. In this embodiment, by having the first mounting hole 111 and the second mounting hole penetrate the first insulating plate 113, the cover plate 114, and the second insulating plate 115, not only can the electrical safety between the monitoring module 120 and the terminal post 117 be protected, but the overall structure of the battery top cover 10 is also made more robust.

[0067] Example 2:

[0068] This application provides a single battery cell, including a housing, an electrode assembly, and a battery top cover 10 as described in Embodiment 1; wherein the housing includes a receiving cavity with an opening; the electrode assembly is installed in the receiving cavity; and the battery top cover 10 closes to the opening.

[0069] It should be noted that in this application, the lower end of the monitoring module 120 can be connected to the interior of the individual battery to monitor the internal status information of the individual battery. Furthermore, the first connector 121 of the monitoring module 120 is located on the outside of the battery top cover 10, which means that the first connector 121 is also located on the outside of the individual battery. In this application, by extending the first connector 121 towards the corner of the top cover body 110, the first connector 121 is positioned at the edge of the battery top cover 10, facilitating the connection between the external connector and the first connector 121 from the edge of the battery top cover 10; simultaneously, it avoids the first connector 121 from connecting to the terminal post 117 on the battery top cover 10, ensuring the circuit safety of the individual battery.

[0070] Example 3:

[0071] Please refer to Figures 5-7. A battery module of this application includes at least one single battery cell of Embodiment 2 and a junction box 20. Figure 5 is a schematic diagram of the connection between the junction box 20 and the battery top cover 10 of the single battery cell; Figures 6-7 are schematic diagrams of the specific structure of the junction box 20.

[0072] Specifically, the junction box 20 has at least one second connector 230, which is electrically connected to the first connector 121 of the individual battery cell. The signal line 240, which is electrically connected to the battery management system, is housed within the junction box 20. In this embodiment, the individual battery cell is equipped with a monitoring module 120, and the first connector 121 of the monitoring module 120 can be connected to the second connector 230, transmitting data to the battery management system via the signal line 240. By providing the junction box 20, the first connectors 121 of one or more individual batteries can be used to route the signal lines according to the junction box 20's wiring. This avoids wiring chaos caused by individual battery cell leads being connected to the battery management system, and also avoids situations where monitoring signals are difficult to transmit accurately due to the use of wireless modules, thereby improving the safety of the battery module.

[0073] In some implementations, the junction box 20 includes a battery docking layer 210 and a signal transmission layer 220. The battery docking layer 210 has at least one connector mounting portion 211 and a first through hole 212 communicating with the connector mounting portion 211. The signal transmission layer 220 has a second through hole 222 communicating with the first through hole 212. A second connector 230 is mounted on the connector mounting portion 211, and a signal line 240 electrically connected to the second connector 230 passes through the first through hole 212 and is housed in the second through hole 222. In this embodiment, the junction box 20 is connected to at least one individual battery through the battery docking layer 210, and transmits the status information collected by the monitoring module 120 in the individual battery to the battery management system through the signal transmission layer 220.

[0074] More specifically, the battery mating layer 210 is provided with at least one connector mounting portion 211, and the second connector 230 is mounted on the connector mounting portion 211. The battery mating layer 210 can mate with the first slot 112 on the battery top cover 10 of the individual battery through the connector mounting portion 211 to realize the electrical connection between the first connector 121 and the second connector 230. Each connector mounting portion 211 can correspond to one individual battery. The battery mating layer 210 is provided with a first through hole 212 communicating with the connector mounting portion 211, and the signal transmission layer 220 is provided with a second through hole 222 communicating with the first through hole 212. The signal line 240 electrically connected to the second connector 230 passes through the first through hole 212 and is housed in the second through hole 222, so that the status information acquired by the monitoring module 120 can be transmitted to the battery management system through the first connector 121, the second connector 230, and the signal line 240. Each signal line 240 is housed in its corresponding second through hole 222 to avoid circuit malfunction. In addition, the battery docking layer 210 and the signal transmission layer 220 can be connected by an adhesive layer, and the adhesive layer is provided with a through hole that can connect the first through hole 212 and the second through hole 222.

[0075] In some implementations, the connector mounting portion 211 has at least one second slot 213, the second connector 230 is located within the second slot 213, and the first through hole 212 communicates with the second slot 213. In this embodiment, by providing the second slot 213, the second connector 230 is inserted into the second slot 213, thereby fixing the second connector 230 through the second slot 213, thus ensuring that the second connector 230 is correspondingly connected to the first connector 121. Furthermore, the first through hole 212 of the battery mating layer 210 can be configured to communicate with the second slot 213, so that the signal line 240 can be electrically connected to the second connector 230 through the first through hole 212 and the second slot 213.

[0076] In some implementations, the connector mounting portion 211 protrudes from the lower end of the battery mating layer 210 and abuts against the first slot 112 of the battery top cover 10 to facilitate electrical connection between the second connector 230 and the first connector 121. In this embodiment, the shape of the connector mounting portion 211 can match the first slot 112 on the battery top cover 10 of the individual battery, so that the connector mounting portion 211 can extend into the first slot 112, and the second connector 230 and the first connector 121 are electrically connected when the connector mounting portion 211 is fully extended and abuts against the first slot 112 of the battery top cover 10. By cooperating with the first slot 112, the connection reliability between the second connector 230 and the first connector 121 can be improved.

[0077] In addition, a snap-fit ​​structure can be provided between the first slot 112 and the connector mounting part 211 so that when the first slot 112 and the connector mounting part 211 are snap-fitted and fixed, the first connector 121 is electrically connected to the second connector 230.

[0078] In some implementations, the battery docking layer 210 and the signal transmission layer 220 are detachably connected, and the signal transmission layer 220 has a wire groove 221 at the connection between the second through hole 222 and the first through hole 212. In this embodiment, the battery docking layer 210 and the signal transmission layer 220 can be fixed by snap-fit ​​or screw-fit, so that the battery docking layer 210 and the signal transmission layer 220 form a detachable connection structure, so that the signal line 240 can be installed in the first through hole 212 and the second through hole 222. Further, the signal transmission layer 220 has a wire groove 221 at the connection between the second through hole 222 and the first through hole 212, and the first through hole 212 and the second through hole 222 can be connected through the wire groove 221. When the battery docking layer 210 and the signal transmission layer 220 are detached, the signal line 240 coming out of the first through hole 212 can be easily transferred into the second through hole 222 within the space provided by the wire groove 221, thereby improving the convenience of wiring the signal line 240.

[0079] In some implementations, when there are multiple signal lines 240 electrically connected to the second connector 230, there are also multiple first through holes 212 and multiple second through holes 222. The multiple first through holes 212 are arranged diagonally offset, and the multiple second through holes 222 are spaced apart in the same direction. In this embodiment, the monitoring module 120 can have one or more first connectors 121 to transmit different types of monitoring signals. When there are multiple first connectors 121, multiple second connectors 230 and signal lines 240 need to be provided. In this embodiment, by arranging the multiple first through holes 212 diagonally offset and the multiple second through holes 222 spaced apart in the same direction, the signal lines 240 are spaced apart at the connection points between the second through hole 222 and the first through hole 212 during wiring installation, thus avoiding line disorder.

[0080] In some implementations, when there are multiple individual batteries, the junction box 20 is provided with multiple second connectors 230 along its length. The multiple individual batteries are arranged along the length of the junction box 20, and the first connector 121 of each individual battery is electrically connected to the corresponding second connector 230. The signal line 240 is also laid out along the length of the junction box 20. In this embodiment, when there are multiple individual batteries, they are arranged along the length of the junction box 20. The first connector 121 of each individual battery is connected to the second connector 230 in different connector mounting portions 211 of the junction box 20, and the signal line 240 is laid out along the length of the junction box 20 and electrically connected to the battery management system. This design makes the arrangement of the individual batteries and the signal line 240 more reasonable and facilitates the installation of the junction box 20, thereby improving the production efficiency of the battery module.

[0081] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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 application according to the specific circumstances.

[0082] In the description of this application, 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 application is in use. They are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. 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.

[0083] 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.

[0084] In this application, unless otherwise expressly specified and limited, "above or below" a 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" a 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" a 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.

[0085] Although the description of this application has been made in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A battery top cover, characterized in that, include: The top cover body (110) is provided with a first mounting hole (111), the first mounting hole (111) being located at a corner of the top cover body (110); and A monitoring module (120) is disposed in the first mounting hole (111), and the monitoring module (120) is used to monitor the internal status information of a single cell. The monitoring module (120) has a first connector (121) on its side wall. The first connector (121) is located on the outside of the top cover body (110) and extends toward the corner of the top cover body (110).

2. The battery top cover according to claim 1, characterized in that, The outer side of the top cover body (110) is provided with a first slot (112), the first slot (112) is connected to the first mounting hole (111), and the first connector (121) of the monitoring module (120) extends into the first slot (112).

3. The battery top cover according to claim 1, characterized in that, The monitoring module (120) is also provided with a protective plate (124) on its side wall, and the protective plate (124) is located on both sides or around the first connector (121).

4. The battery top cover according to claim 1, characterized in that, The top cover body (110) includes a first insulating plate (113), a cover plate (114), and a second insulating plate (115). The cover plate (114) is disposed at the upper end of the first insulating plate (113), and the second insulating plate (115) is disposed at the upper end of the cover plate (114). The first mounting hole (111) is disposed through the first insulating plate (113), the cover plate (114), and the second insulating plate (115).

5. The battery top cover according to claim 4, characterized in that, The sidewall of the second insulating plate (115) is provided with a clearance opening (116) to avoid the first connector (121).

6. The battery top cover according to claim 4, characterized in that, The top cover body (110) is also provided with a second mounting hole, in which a pole post (117) is installed. The second mounting hole is provided through the first insulating plate (113), the cover plate (114), and the second insulating plate (115).

7. A single-cell battery, characterized in that, include: The housing includes a receiving cavity with an opening; Electrode assemblies are installed within the accommodating cavity; as well as The battery top cover according to any one of claims 1 to 6, wherein the battery top cover closes to the opening.

8. A battery module, characterized in that, include: At least one single cell as described in claim 7; as well as The junction box (20) has at least one second connector (230) electrically connected to the first connector (121) of the single cell, and the signal line (240) electrically connected to the battery management system of the second connector (230) is housed in the junction box (20).

9. The battery module according to claim 8, characterized in that, The junction box (20) includes a battery docking layer (210) and a signal transmission layer (220). The battery docking layer (210) is provided with at least one connector mounting part (211). The battery docking layer (210) is provided with a first through hole (212) communicating with the connector mounting part (211). The signal transmission layer (220) is provided with a second through hole (222) communicating with the first through hole (212). The second connector (230) is mounted on the connector mounting part (211). The signal line (240) electrically connected to the second connector (230) passes through the first through hole (212) and is housed in the second through hole (222).

10. The battery module according to claim 9, characterized in that, The connector mounting part (211) is provided with at least one second slot (213), the second connector (230) is located in the second slot (213), and the first through hole (212) communicates with the second slot (213).

11. The battery module according to claim 9, characterized in that, The connector mounting part (211) protrudes from the lower end of the battery mating layer (210) and abuts against the first slot (112) of the battery top cover so that the second connector (230) can be electrically connected to the first connector (121).

12. The battery module according to claim 9, characterized in that, The battery docking layer (210) is detachably connected to the signal transmission layer (220), and the signal transmission layer (220) has a wire groove (221) at the connection between the second through hole (222) and the first through hole (212).

13. The battery module according to claim 9, characterized in that, When there are multiple signal lines (240) electrically connected to the second connector (230), there are multiple first through holes (212) and multiple second through holes (222). The multiple first through holes (212) are arranged obliquely offset, and the multiple second through holes (222) are arranged at intervals in the same direction.

14. The battery module according to any one of claims 8-13, characterized in that, When there are multiple individual batteries, the junction box (20) is provided with multiple second connectors (230) along the length direction of the junction box (20), the multiple individual batteries are arranged along the length direction of the junction box (20), the first connector (121) of each individual battery is electrically connected to the corresponding second connector (230), and the signal line (240) is laid along the length direction of the junction box (20).

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