Battery box integrated panel, battery pack and charging circuit structure

Abstract

The utility model relates to a battery box integrated panel, a battery pack and a charging circuit structure, and relates to the technical field of power batteries. And the battery box integrated panel is arranged on the box body of the battery pack. The integrated panel of the battery box comprises a panel body, a plugging port and an access cover plate, the plate body is arranged at the position of a panel window formed in the box body. And the plugging port is arranged on the board body and is connected with a battery cell in the battery pack. The plate body is provided with an overhaul window, and the overhaul cover plate is arranged on the overhaul window. Wherein the overhaul cover plate is detachably connected with the plate body, the battery cell is connected with an overhaul plug connector, and the overhaul plug connector extends to the overhaul window. According to the battery box integrated panel provided by the invention, the overall maintenance process of the battery box can be simplified, and meanwhile, the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of power battery technology, specifically to a battery box integrated panel, battery pack and charging circuit structure. Background Technology

[0002] With the gradual development of new energy technologies, more and more vehicles are using lithium batteries as their power source. In practical applications, as the battery's usage time gradually increases, the consistency of the cells inside the battery box may become problematic, leading to a gradual increase in the voltage difference between individual cells and affecting the battery's performance. In this case, the battery box needs to be inspected and repaired.

[0003] In existing technologies, battery box maintenance typically requires disassembling the entire battery box and then performing charge equalization on the internal cells. This necessitates first disassembling the entire battery pack and then opening the battery box, making the maintenance process cumbersome. Furthermore, the work environment is often harsh, and direct disassembly may damage the internal cells and other structures. Returning the battery box to the factory for repair further complicates the process and increases costs.

[0004] Therefore, there is an urgent need to provide a battery box structure that can simplify the overall maintenance process of the battery box and reduce maintenance costs. Utility Model Content

[0005] The purpose of this application is to provide a battery box integrated panel, battery pack and power replenishment circuit structure, which can simplify the overall maintenance process of the battery box and reduce maintenance costs.

[0006] To achieve the above objectives, in a first aspect, this application provides a battery box integrated panel, which is disposed on the casing of a battery pack. The battery box integrated panel includes a panel body, a connector, and a maintenance cover. The panel body is located at a panel window position on the casing. The connector is disposed on the panel body and connects to the battery cells inside the battery pack. A maintenance window is provided on the panel body, and the maintenance cover is disposed on the maintenance window. The maintenance cover is detachably connected to the panel body, and maintenance connectors are connected to the battery cells, extending to the maintenance window.

[0007] Based on the embodiments described above, when the battery pack is in use, the battery box integrated panel is installed on the battery pack housing, and all the connectors connecting the battery pack to the outside are centrally located on the battery box integrated panel. This not only improves the overall integration of the battery pack but also reduces production, processing, and maintenance costs. When it is necessary to increase, decrease, or adjust the number and position of connectors, only the corresponding structure of the battery box integrated panel needs to be adjusted, without changing the housing structure or adjusting the housing mold, thereby achieving modular design and reducing the overall production and processing costs of the battery pack. Furthermore, by setting up an inspection window and an inspection cover, with the inspection cover detachably connected to the inspection window, the inspection cover can be quickly and easily opened when the battery pack needs to be inspected and maintained. Then, the working status of the battery cells inside the battery pack can be inspected and maintained through the inspection connectors connected to the cells. This eliminates the need to disassemble the entire housing, simplifying the inspection and maintenance process, reducing inspection and maintenance costs, and also avoiding damage to the cells during the inspection and maintenance process to a certain extent.

[0008] In some embodiments, the interface includes a negative connector and a positive connector, and multiple battery cells are connected to form a battery module. The negative terminal of the battery module is connected to the negative connector, and the positive terminal of the battery module is connected to the positive connector.

[0009] Based on the above embodiments of this application, multiple battery cells are connected to form a battery module. Subsequently, the battery module is connected to the positive and negative connectors on the battery box integrated panel through connecting structures such as aluminum busbars. This enables the battery pack to connect to the outside world while concentrating the connection interfaces on the battery box integrated panel, improving the overall integration of the battery pack and facilitating subsequent inspection and maintenance.

[0010] In some embodiments, a manual maintenance switch is also provided on the board body. The manual maintenance switch is connected between the negative terminal and the negative terminal connector of the battery module, or the manual maintenance switch is connected between the positive terminal and the positive terminal connector of the battery module.

[0011] Based on the above embodiments of this application, by connecting a manual maintenance switch between the battery module and the negative connector or between the battery module and the positive connector, the manual maintenance switch can be turned off first when the battery pack is inspected and maintained in the later stage, so that the circuit loop composed of the positive connector and the negative connector is in an open state, thereby avoiding live maintenance, reducing the risk of electric shock during maintenance, and improving the safety of the maintenance process.

[0012] In some embodiments, a fixing bracket is provided on the side of the inspection cover facing the battery cell for inserting and fixing the inspection connector.

[0013] Based on the embodiments described above, a fixed bracket is provided to facilitate the storage of maintenance connectors. Furthermore, when the battery pack is used in an automotive environment, it is subject to significant vibration. By using a fixed bracket to insert and fix the maintenance connectors, not only is it easier to secure and remove them, but the contact area between the connectors is also increased, improving the reliability of the fixation.

[0014] In some embodiments, a support base is further provided at the end of the plate, and the support base is fixed to the box. The plate can be plugged into the support base, and the plugging direction is parallel to the plane of the plate.

[0015] Based on the embodiments described above, by setting a support base, during the installation of the battery box integrated panel, the panel is first inserted and fixed to the support base to achieve pre-positioning of the battery box integrated panel. Then, the panel is fixed to the box body by bolts or riveting to complete the installation. This not only simplifies the installation process but also improves installation accuracy.

[0016] According to a second aspect of this application, a battery pack is provided, comprising a housing, a plurality of battery cells, and the aforementioned integrated battery housing panel. The housing includes a lower housing plate and a upper cover, which together form a receiving cavity. The plurality of battery cells are arranged sequentially and fixed within the receiving cavity. A panel window is opened on the upper cover, and the integrated battery housing panel is disposed within the panel window.

[0017] Based on the above embodiments of this application, the battery pack provided by this application includes the aforementioned battery box integrated panel. Through this arrangement, the interfaces connecting the battery pack to the outside world are centrally located on the battery box integrated panel, improving the degree of integration while reducing the cost of later adjustments and adjustments to the number of interfaces. Furthermore, by providing a maintenance window on the battery box integrated panel, the maintenance window is closed by a maintenance cover when the battery pack is in normal use. When maintenance is required, the maintenance cover is opened, and maintenance connectors can be connected to inspect the battery pack's operation. This eliminates the need to disassemble the entire enclosure, simplifying the maintenance process and reducing maintenance costs.

[0018] In some embodiments, any two adjacent cells are connected by a switch plate, and the switch plate is provided with a sampling terminal. The maintenance connector includes a first maintenance component and a second maintenance component, and any one of the sampling terminals is connected to the first maintenance component and the second maintenance component respectively through a sampling wire harness.

[0019] Based on the embodiments described above, adjacent battery cells are connected via terminals during assembly to form a battery module. By setting sampling terminals on the terminals, multiple data points, such as temperature and input / output current, can be monitored during cell operation. Furthermore, by connecting each sampling terminal to two maintenance connectors via sampling harnesses, even if a single maintenance connector or its corresponding sampling harness is damaged, affecting the sampling results, another maintenance connector, separately connected to the sampling terminal, serves as a backup to ensure the accuracy of the test results. This improves the accuracy of the test results and ensures reliability under harsh operating conditions.

[0020] In some embodiments, the first access component is connected to the slave control board, and the second access component is inserted and fixed to the fixed bracket.

[0021] Based on the embodiments described above, during normal operation of the battery pack, the sampling terminals are connected to the slave control board via a sampling harness and a first maintenance component. The slave control board receives the sampling data and performs feedback control, etc. At this time, the second maintenance component is mounted on a fixed bracket as a spare. When maintenance of the battery pack is required, the second maintenance component can be directly connected to the testing equipment, allowing maintenance to be performed without affecting the operation of the slave control board and quickly diagnosing data acquisition problems. Furthermore, when a problem is detected with the slave control board or other control components, a new slave control board can be directly connected externally to the second maintenance component without disassembling the enclosure to replace the slave control board, thus temporarily and quickly resolving the fault and preventing the vehicle from being idle for extended periods.

[0022] According to a third aspect of this application, an embodiment of this application provides a power replenishment circuit structure applied to the aforementioned battery pack. The power replenishment circuit structure includes a power replenishment connector, and two maintenance connectors are connected in parallel to the power replenishment connector.

[0023] Based on the above embodiments of this application, the power replenishment circuit structure provided in this application is applicable to the aforementioned battery pack. After prolonged use, inconsistencies may arise between the battery cells, leading to increased voltage differences between individual cells. Power replenishment is then used to balance the cells. With the aforementioned configuration of this application, when replenishing the cells, the first and second inspection components, along with their corresponding data acquisition harnesses, are connected in parallel, allowing both lines to perform power replenishment. In one scenario, power replenishment can be performed using only a single line, for example, while maintaining normal connection and operation of the control board, power replenishment can be performed only through the second inspection component and its corresponding data acquisition harness. In another scenario, both the first and second inspection components can be connected simultaneously for power replenishment, which improves the overall current-carrying capacity of the harness and significantly shortens the power replenishment cycle.

[0024] In some embodiments, the power replenishment circuit structure further includes two adapters, with adapters connected between the two maintenance connectors and the power replenishment connector.

[0025] Based on the above embodiments of this application, by connecting the adapter, it is possible to ensure that electrical energy is transmitted to the battery cell efficiently and stably during the charging process. At the same time, it is also possible to transmit control signals and data during the charging process to ensure precise control and monitoring of the charging process.

[0026] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the following detailed description to explain the present application, but do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the structure of the battery box integrated panel provided in the embodiment of this application.

[0029] Figure 2 This is another structural schematic diagram of the battery box integrated panel provided in the embodiments of this application.

[0030] Figure 3 This is a schematic diagram of the internal structure of the battery box integrated panel provided in the embodiments of this application.

[0031] Figure 4 This is a schematic diagram of the structure of the maintenance cover in the battery box integrated panel provided in the embodiment of this application.

[0032] Figure 5 This is a schematic diagram of the structure of the battery cell, sampling terminal and maintenance connector in the battery pack provided in the embodiments of this application.

[0033] Figure 6 This is a schematic diagram of the power replenishment circuit structure provided in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures

[0035] 1. Board body; 12. Negative connector; 13. Positive connector; 14. Manual maintenance switch; 15. Low-voltage communication plug-in; 16. Negative output copper busbar; 17. Positive output copper busbar; 18. Adapter copper busbar; 2. Housing; 3. Inspection cover plate; 31. Fixing bracket; 32. Wiring harness buckle; 4. Inspection plug-in; 41. First inspection component; 42. Second inspection component; 5. Support base; 6. Battery cell; 61. Battery plate; 62. Slave control board; 7. Sampling terminal; 71. Sampling wire harness; 8. Power supply plug-in; 81. Adapter. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] 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. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] 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 of this application without inventive effort are within the scope of protection of this application.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this application, it should be noted that, unless otherwise stated, the terms "inner," "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used 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," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In existing technologies, battery box maintenance typically requires disassembling the entire battery box and then performing charge equalization on the internal cells. This necessitates first disassembling the entire battery pack and then opening the battery box, making the maintenance process cumbersome. Furthermore, the work environment is often harsh, and direct disassembly may damage the internal cells and other structures. Returning the battery box to the factory for repair further complicates the process and increases costs.

[0043] Specifically, in existing technologies, battery packs are disassembled as a whole for maintenance. This process can damage the battery cells, affecting their usability and even causing safety issues such as explosions. Furthermore, the overall maintenance time is excessively long, leading to prolonged equipment downtime and impacting work efficiency.

[0044] To address the aforementioned problems in the prior art, according to a first aspect of this application, embodiments of this application provide a battery box integrated panel, which is disposed on the casing 2 of the battery pack. (See reference...) Figures 1 to 3 As shown, the integrated panel of the battery box includes a panel 1, a connector, and a maintenance cover 3. The panel 1 is located at the panel window position on the box 2. The connector is located on the panel 1 and connects to the battery cells 6 inside the battery pack. A maintenance window is provided on the panel 1, and the maintenance cover 3 is located on the maintenance window. The maintenance cover 3 is detachably connected to the panel 1, and a maintenance connector 4 is connected to the battery cell 6, extending to the maintenance window.

[0045] Based on the embodiments described above, when the battery pack is in use, the battery box integrated panel is mounted on the battery pack housing 2, and all the connectors for connecting the battery pack to the outside are centrally located on the battery box integrated panel. This not only improves the overall integration level of the battery pack but also reduces production, processing, and maintenance costs. When it is necessary to increase, decrease, or adjust the number and position of connectors, only the corresponding structure of the battery box integrated panel needs to be adjusted, without changing the structure of the housing 2 or adjusting the mold of the housing 2, thereby achieving modular design and reducing the overall production and processing costs of the battery pack.

[0046] Furthermore, by setting up an inspection window and an inspection cover 3, with the inspection cover 3 detachably connected to the inspection window, the battery pack can be quickly and easily opened for maintenance. The inspection cover 3 can then be used to inspect and maintain the operation of the battery cells 6 inside the battery pack via the inspection connector 4 connected to the cells 6. This eliminates the need to completely disassemble the casing 2, simplifying the maintenance process, reducing maintenance costs, and also minimizing the risk of damage to the cells 6 during maintenance.

[0047] Specifically, in some embodiments of this application, the inspection cover 3 and the plate 1 can be fixed together by means of bolts or other methods. A flange structure overlapping the plate 1 is provided on the edge of the inspection cover 3, and then the flange structure is connected to the plate 1 by bolts. At this time, not only is the connection stable and strong, but it also makes it easy to disassemble the inspection cover 3 to inspect and maintain the battery pack.

[0048] Alternatively, in some other embodiments of this application, the inspection cover 3 and the plate 1 can be fixed together by means of snap-fit ​​or other methods. The specific configuration can be adjusted according to actual circumstances, and this application does not impose any specific limitations on this.

[0049] Furthermore, in this application, the specific location of the panel window can be set according to the actual situation. Since the bottom of the enclosure 2 usually needs to be connected to a structure such as a liquid cooling plate or a bottom protective plate, while the top is usually in contact with electrical equipment, the plug-in interface is usually set on the side wall of the enclosure 2. Therefore, the panel window and the battery box integrated panel can also be set on the side wall of the enclosure 2 to facilitate the connection and arrangement of the wiring.

[0050] In this application, any suitable connector can be provided on the battery box integrated panel.

[0051] refer to Figures 1 to 3 As shown in some embodiments of this application, the interface may include a negative connector 12 and a positive connector 13. Multiple battery cells 6 are connected to form a battery module. The negative terminal of the battery module is connected to the negative connector 12, and the positive terminal of the battery module is connected to the positive connector 13.

[0052] Based on the above embodiments of this application, multiple battery cells 6 are connected to form a battery module. Subsequently, the battery module is connected to the positive connector 13 and negative connector 12 on the battery box integrated panel through connecting structures such as aluminum busbars. This enables the battery pack to connect with the outside world while concentrating the connection interfaces on the battery box integrated panel, improving the overall integration of the battery pack and facilitating subsequent inspection and maintenance.

[0053] Alternatively, in other embodiments of this application, the interface may also include a low-voltage communication plug-in 15, etc. For example, when the battery pack is used in a new energy vehicle, the battery pack can be connected to components such as the vehicle control system through the low-voltage communication plug-in 15 to monitor data such as the current, cell voltage, temperature, state of charge and health of the battery pack in real time, and control the working state of the battery pack according to instructions.

[0054] refer to Figure 3As shown in some embodiments of this application, a manual maintenance switch 14 may also be provided on the board 1. The manual maintenance switch 14 is connected between the negative terminal of the battery module and the negative terminal connector 12, or the manual maintenance switch 14 is connected between the positive terminal of the battery module and the positive terminal connector 13.

[0055] Based on the above embodiments of this application, by connecting a manual maintenance switch 14 between the battery module and the negative connector 12 or between the battery module and the positive connector 13, the manual maintenance switch 14 can be turned off first when the battery pack is inspected and maintained in the later stage, so that the circuit loop formed by the positive connector 13 and the negative connector 12 is in a disconnected state, thereby avoiding live maintenance, reducing the risk of electric shock during maintenance, and improving the safety of the maintenance process.

[0056] In practical connection, the battery module end plate 61 is connected to the connector on the battery box integrated panel via a copper or aluminum busbar structure. (See reference) Figure 3 As shown in the exemplary embodiment provided in this application, the negative terminal of the battery module is directly connected to the negative connector 12 via the negative output copper busbar 16, while the positive terminal of the battery module is first connected to the manual service disconnect (MSD) switch 14 via the positive output copper busbar 17. The MSD switch 14 is then connected to the positive connector 13 via the adapter copper busbar 18, thus connecting the MSD switch 14 into the circuit. When maintenance is required, the MSD switch 14 can be manually turned off, thereby disconnecting the circuit and avoiding safety issues associated with live maintenance, thus improving safety during maintenance.

[0057] In other connection methods of this application, the manual maintenance switch 14 can also be connected between the negative output copper busbar 16 and the negative connector 12. The specific connection method can be set with reference to the above, and this application does not impose any specific restrictions on it.

[0058] refer to Figure 3 and Figure 4 As shown in some embodiments of this application, a fixing bracket 31 is provided on the side of the inspection cover 3 facing the battery cell 6 for inserting and fixing the inspection connector 4.

[0059] Based on the above embodiments of this application, the fixed bracket 31 facilitates the storage of the maintenance connector 4. Furthermore, when the battery pack is used in a vehicle-mounted environment, it is subject to significant vibration. By using the fixed bracket 31 to insert and fix the maintenance connector 4, it is not only easier to fix and remove the connector, but also increases the contact area between them, improving the reliability of the fixation.

[0060] Specifically, the structure of the fixing bracket 31 can be adapted to the structure of the inspection connector 4. Furthermore, the specific insertion and fixing method between the two can be any suitable method. Further, in some other embodiments of this application, the inspection cover 3 can also be provided with a pre-grooving device for storing the sampling harness 71, to further improve the stability when fixing the inspection connector 4.

[0061] refer to Figure 3 As shown in some embodiments of this application, a support base 5 may also be provided at the end of the plate 1, and the support base 5 is fixed to the box 2. The plate 1 can be plugged into the support base 5, and the plugging direction is parallel to the plane of the plate 1.

[0062] Based on the embodiments described above, by setting a support base 5, when installing the battery box integrated panel, the panel 1 is first inserted and fixed to the support base 5 to achieve pre-positioning of the battery box integrated panel. Then, the panel 1 is fixed to the box 2 by bolt connection or riveting to complete the installation. This not only simplifies the installation process but also improves the installation accuracy.

[0063] Specifically, further reference Figure 3 As shown, during the installation of the battery box integrated panel, the support base 5 is fixed to the box body 2 by riveting or bolting. Then, the plate 1 is inserted downward into the support base 5, thereby limiting the horizontal movement of the plate 1 and achieving pre-positioning of the plate 1. Subsequently, the plate 1 and the box body 2 are stably fixed by bolting, which ensures both the accuracy of the connection and the ability to quickly position the plate.

[0064] Based on the aforementioned basic solution, and according to a second aspect of this application, a battery pack is provided. (Reference) Figure 5 As shown, the battery pack includes a housing 2, multiple battery cells 6, and the aforementioned integrated battery housing panel. The housing 2 includes a lower panel and a top cover, which together form a receiving cavity. The multiple battery cells 6 are arranged sequentially and fixed within the receiving cavity. A panel window is opened on the top cover, and the integrated battery housing panel is disposed within the panel window.

[0065] Based on the embodiments described above, the battery pack provided in this application includes the aforementioned battery box integrated panel. Through this arrangement, the interfaces connecting the battery pack to the outside world are centrally located on the battery box integrated panel, improving the level of integration while reducing the cost of later adjustments and adjustments to the number of interfaces.

[0066] Furthermore, by setting an inspection window on the integrated panel of the battery box, the inspection window is closed by the inspection cover 3 when the battery pack is in normal use. When maintenance is required, the inspection cover 3 is opened, and the maintenance connector 4 can be connected to inspect the battery pack's operation. This eliminates the need to disassemble the entire box 2, simplifying the maintenance process and reducing maintenance costs.

[0067] refer to Figure 5 As shown, in some embodiments of this application, any two adjacent cells 6 are connected by a plate 61, and the plate 61 is provided with a sampling terminal 7. The maintenance connector 4 includes a first maintenance component 41 and a second maintenance component 42, and any one of the sampling terminals 7 is connected to the first maintenance component 41 and the second maintenance component 42 respectively through a sampling wire harness 71.

[0068] Based on the embodiments described above, adjacent battery cells 6 are connected via a connector 61 during installation to form a battery module. By providing sampling terminals 7 on the connector 61, multiple data points, such as temperature and input / output current, can be monitored during the operation of the battery cells 6. Furthermore, by connecting each sampling terminal 7 to two maintenance connectors 4 via sampling harnesses 71, even if a single maintenance connector 4 or its corresponding sampling harness 71 is damaged, affecting the sampling results, another maintenance connector 4, separately connected to the sampling terminal 7, serves as a backup to ensure the testing results. This improves the accuracy of the testing results and ensures reliability under harsh operating conditions.

[0069] Specifically, by setting two inspection connectors 4 to be connected to the sampling terminals 7 via sampling harnesses 71, the probability of sampling failure is reduced. In the prior art, the probability of sampling failure is sometimes reduced by setting two sampling terminals 7 on a single plate 61. In contrast, the above solution in this application does not require increasing the number of sampling terminals 7, and only requires one positioning weld to fix the sampling terminals 7, thus improving production efficiency and reducing costs.

[0070] In some embodiments of this application, the first inspection component 41 can be connected to the slave control board 62, and the second inspection component 42 can be inserted and fixed to the fixed bracket 31.

[0071] Based on the above embodiments of this application, during normal operation of the battery pack, the sampling terminal 7 is connected to the slave control board 62 via the sampling harness 71 and the first maintenance component 41. The slave control board 62 receives the sampling data and performs feedback control, etc. At this time, the second maintenance component 42 is set on the fixed bracket 31 as a spare part. When the battery pack needs to be inspected and maintained, the second maintenance component 42 can be directly connected to the testing equipment, so that maintenance can be carried out without affecting the connection and operation of the slave control board 62, and the sampling problem can be quickly diagnosed.

[0072] Meanwhile, when a problem is detected with the slave control board 62 or other control components, a new slave control board 62 can be directly connected to the second repair component 42 without disassembling the housing 2 to replace the slave control board 62, thus temporarily and quickly resolving the fault and avoiding the impact of the vehicle being left idle for a long time.

[0073] Specifically, the second maintenance component 42 in this application is not limited to being connected to the external slave control board 62. When other components need to be connected, they can also be connected through the maintenance window via the second maintenance component 42 if the circuit structure allows, making the overall maintenance process simple and convenient.

[0074] Furthermore, in this application, when inspecting the battery pack, any suitable testing equipment from the prior art can be selected, and different testing equipment can determine the specific problems of the battery pack based on different parameters. Since this application does not involve improvements to the above structure, no specific limitations are made here.

[0075] Based on the above technical solutions, and according to a third aspect of this application, an embodiment of this application provides a power-compensating circuit structure. (See reference...) Figure 6 As shown, this power replenishment circuit structure is applied to the aforementioned battery pack. The power replenishment circuit structure includes a power replenishment connector 8, and two maintenance connectors 4 are connected in parallel to the power replenishment connector 8.

[0076] Based on the above embodiments of this application, the power replenishment circuit structure provided in this application is applicable to the aforementioned battery pack. After prolonged use, inconsistencies may arise between the battery cells 6, leading to an increase in the voltage difference between individual cells 6. In this case, power replenishment is used to balance the battery cells 6. With the aforementioned configuration of this application, when replenishing the battery cells 6, the first inspection component 41 and the second inspection component 42, along with their corresponding data acquisition harnesses, are connected in parallel, allowing both lines to perform power replenishment.

[0077] In some embodiments of this application, in one case, power replenishment can be performed using only a single line, for example, while maintaining normal connection and operation of the control board 62, power replenishment can be performed only through the second maintenance component 42 and its corresponding acquisition harness. In another case, power replenishment can be performed by simultaneously connecting the first maintenance component 41 and the second maintenance component 42, which can improve the overall current carrying capacity of the harness and significantly shorten the power replenishment cycle.

[0078] Specifically, the appropriate charging connection method can be selected based on the actual situation. For example, when real-time monitoring of the battery pack's operating status is required and the charging speed requirement is not high, a single line can be used for charging. However, when higher charging efficiency is required and rapid charging is needed, two lines can be connected in parallel for simultaneous charging.

[0079] refer to Figure 6 As shown in some embodiments of this application, the power replenishment circuit structure further includes two adapters 81, and the two maintenance connectors 4 are respectively connected to the power replenishment connector 8 via adapters 81.

[0080] Based on the above embodiments of this application, by connecting the adapter 81, it is possible to ensure that electrical energy is transmitted to the battery cell 6 efficiently and stably during the power replenishment process. At the same time, it is also possible to transmit control signals and data during the power replenishment process to ensure precise control and monitoring of the power replenishment process.

[0081] Furthermore, it should be noted that the power supply connector 8 and adapter 81 in this application can be any suitable structure from the prior art. Since this application does not involve improvements to the specific structures of the aforementioned components, further details will not be provided.

[0082] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0083] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0084] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed in this application.

Claims

1. A battery box integrated panel, disposed on the battery pack housing, characterized in that, The battery box integrated panel includes: The panel body is positioned at the location of the panel window opened on the housing; An interface is provided on the board and connects to the battery cells inside the battery pack; and, An inspection cover plate, wherein an inspection window is provided on the plate body, and the inspection cover plate is disposed at the inspection window; The inspection cover is detachably connected to the plate body, and an inspection connector is connected to the battery cell, extending to the inspection window.

2. The battery box integrated panel according to claim 1, characterized in that, The interface includes a negative connector and a positive connector. Multiple battery cells are connected to form a battery module. The negative terminal of the battery module is connected to the negative connector, and the positive terminal of the battery module is connected to the positive connector.

3. The battery box integrated panel according to claim 2, characterized in that, The plate is also provided with a manual maintenance switch, which is connected between the negative terminal of the battery module and the negative terminal connector, or the manual maintenance switch is connected between the positive terminal of the battery module and the positive terminal connector.

4. The battery box integrated panel according to any one of claims 1-3, characterized in that, The inspection cover is provided with a fixing bracket on the side facing the battery cell for inserting and fixing the inspection connector.

5. The battery box integrated panel according to any one of claims 1-3, characterized in that, The plate body is also provided with a support base at its end, and the support base is fixed to the box body; The plate can be plugged into the support base, and the plugging direction is parallel to the plane of the plate.

6. A battery pack, characterized in that, The battery pack includes: The box body includes a lower box panel and an upper cover, wherein the lower box panel and the upper cover enclose a receiving cavity; Multiple battery cells, wherein the multiple battery cells are arranged sequentially and fixed within the receiving cavity; and, The battery box integrated panel as described in any one of claims 1-5, wherein the panel window is opened on the upper cover, and the battery box integrated panel is disposed on the panel window.

7. The battery pack according to claim 6, characterized in that, Any two adjacent cells are connected by a circuit board, and the circuit board is provided with a sampling terminal. The maintenance connector includes a first maintenance component and a second maintenance component, and any one of the sampling terminals is connected to the first maintenance component and the second maintenance component respectively through a sampling wire harness.

8. The battery pack according to claim 7, characterized in that, The battery pack also includes a slave control board, the first maintenance component is connected to the slave control board, and the second maintenance component is inserted and fixed to the fixed bracket.

9. A power replenishment circuit structure, applied to a battery pack as described in any one of claims 6-8, characterized in that, The power replenishment circuit structure includes a power replenishment connector, and a first inspection component and a second inspection component are connected in parallel to the power replenishment connector.

10. The power supply circuit structure according to claim 9, characterized in that, The power replenishment circuit structure also includes two adapters, with the adapters respectively connected between the first maintenance component and the power replenishment connector, and between the second maintenance component and the power replenishment connector.

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