Battery assembly, battery pack, energy storage device and power utilization device

Abstract

The utility model relates to the technical field of energy storage equipment, and provides a battery assembly, a battery pack, an energy storage device and a power utilization device. The sealing cover body covers the battery body, and a first buckle structure and a second buckle structure are arranged on the peripheral side of the end part of the sealing cover body; the data acquisition assembly is connected to the sealing cover body, a first groove structure and a second groove structure are arranged on the peripheral edge of the bottom of the data acquisition assembly connected with the sealing cover body, the first groove structure is arranged corresponding to the first buckle structure, and the second groove structure is arranged corresponding to the second buckle structure; the data acquisition assembly comprises a boss structure, and the boss structure is arranged on one side of the first groove structure and is adjacent to the first groove structure; wherein the data acquisition assembly is detachably connected with the sealing cover body; through detachable connection between the data acquisition assembly and the sealing cover body, rapid installation and disassembly are realized.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment technology, and more specifically, to a battery module, a battery pack, an energy storage device, and an electrical device. Background Technology

[0002] Currently, in related technologies, the data acquisition module of the battery pack is prone to damage and needs frequent replacement. Due to the large size and weight of energy storage battery packs, disassembling and repairing the data acquisition module is quite troublesome. Usually, a maintenance port is reserved in the design to facilitate disassembly and maintenance. However, the current maintenance port design has a cumbersome disassembly process, requiring the use of tools to remove multiple fasteners before maintenance can be performed. This results in low maintenance efficiency and an easy risk of losing or omitting disassembled parts. Utility Model Content

[0003] This application aims to at least solve the technical problems in the related art, such as the data acquisition module of the battery pack being easily damaged, requiring frequent replacement and installation, and the disassembly and installation process being cumbersome and the maintenance efficiency being low.

[0004] Therefore, the first aspect of this application provides a battery assembly.

[0005] The second aspect of this application proposes a battery pack.

[0006] The third aspect of this application proposes an energy storage device.

[0007] The fourth aspect of this application proposes an electrical device.

[0008] In view of this, this application provides a battery assembly, including: a battery body; a sealing cover covering the battery body, wherein a first snap-fit ​​structure and a second snap-fit ​​structure are provided on the periphery of the end of the sealing cover; a data acquisition assembly connected to the sealing cover, wherein a first groove structure and a second groove structure are provided on the bottom periphery of the data acquisition assembly connected to the sealing cover, and the first groove structure and the first snap-fit ​​structure are correspondingly provided, and the second groove structure and the second snap-fit ​​structure are correspondingly provided; the data acquisition assembly includes a boss structure, which is disposed on one side of the first groove structure and adjacent to the first groove structure; wherein the data acquisition assembly and the sealing cover are detachably connected, wherein when the data acquisition assembly is in a first position, the first snap-fit ​​structure is located in the first groove structure and the second snap-fit ​​structure is located outside the second groove structure to facilitate the disassembly of the data acquisition assembly, and when the data acquisition assembly is in a second position, the first snap-fit ​​structure is engaged with the boss structure to press the sealing cover and the data acquisition assembly together, and the second snap-fit ​​structure is engaged with the second groove structure to fix the sealing cover and the data acquisition assembly together to facilitate the installation and fixation of the data acquisition assembly.

[0009] The battery assembly provided in this application includes a battery body, a sealing cover, and a data acquisition component. The sealing cover is abutted over the battery body, and its periphery at one end has a first and a second snap-fit ​​structure. These structures are distributed around the periphery of the sealing cover's end and are used to connect and secure the data acquisition component. The data acquisition component is connected to the sealing cover, and its bottom periphery edge on the side connected to the sealing cover has a first and a second groove structure. The first groove structure corresponds to the first snap-fit ​​structure, and the second groove structure corresponds to the second snap-fit ​​structure. Thus, during installation, the data acquisition component can be secured by the engagement of the first snap-fit ​​structure and the second snap-fit ​​structure.

[0010] The data acquisition component is also provided with a boss structure, which is located on one side of the first groove structure and adjacent to the first groove structure. That is, the boss structure is located on one side of the first groove structure and is connected to the edge of the first groove structure. It can also be understood that the boss structure is transitionally connected to the edge of the first groove structure.

[0011] The data acquisition component and the sealing cover are detachably connected, meaning they are detachably connected by sliding. When the data acquisition component slides along the length of the sealing cover to the first position, the first snap-fit ​​structure can be accommodated within the first groove because its width is greater than the width of the first snap-fit ​​structure. At this point, the second snap-fit ​​structure is located outside the second groove, allowing the data acquisition component to be easily detached from the sealing cover. When the data acquisition component continues to slide along the length of the sealing cover to the second position, the first snap-fit ​​structure engages with the boss structure. The boss structure then presses the first snap-fit ​​structure firmly against the sealing cover and the data acquisition component, ensuring a tight connection. The second snap-fit ​​structure then engages within the second groove structure to secure the sealing cover and the data acquisition component, preventing lateral movement of the data acquisition component relative to the sealing cover. This facilitates the installation and fixation of the data acquisition component, ensuring a stable connection to the sealing cover and enabling quick installation and removal of the data acquisition component.

[0012] The battery assembly according to the above-described technical solution of this application may also have the following additional technical features:

[0013] In some technical solutions, optionally, there are multiple first snap-fit ​​structures and multiple second snap-fit ​​structures, with the multiple first snap-fit ​​structures evenly distributed along the length direction of the sealing cover and the multiple second snap-fit ​​structures evenly distributed along the width direction of the sealing cover.

[0014] In this technical solution, there are multiple first and second snap-fit ​​structures, with the multiple first snap-fit ​​structures evenly distributed along the length of the sealing cover and the multiple second snap-fit ​​structures evenly distributed along the width of the sealing cover. By evenly distributing multiple first and second snap-fit ​​structures along the length and width of the sealing cover, the connection stability between the data acquisition component and the sealing cover is further enhanced, while making the disassembly and installation process smoother and more reliable.

[0015] In some technical solutions, optionally, there are multiple first groove structures and multiple boss structures, which are evenly distributed along the length direction of the data acquisition component, and the multiple first groove structures are set in one-to-one correspondence with multiple first buckle structures. There are multiple second groove structures, which are evenly distributed along the width direction of the data acquisition component, and the multiple second groove structures are set in one-to-one correspondence with multiple second buckle structures.

[0016] In this technical solution, by evenly distributing multiple first groove structures, boss structures and second groove structures along the length and width directions of the data acquisition component, and setting them one-to-one with the first and second snap-fit ​​structures on the sealing cover, the connection accuracy and stability between the data acquisition component and the sealing cover are further improved.

[0017] In some technical solutions, the boss structure may optionally include: a guide portion, disposed on the side close to the first groove structure, for guiding the first snap-fit ​​structure when the data acquisition component is installed on the sealing cover; and a support portion, connected to the guide portion and located on the side away from the first groove structure, for tightening and fixing the first snap-fit ​​structure when the data acquisition component is installed on the sealing cover.

[0018] In this technical solution, the boss structure includes a guide portion and a support portion. The guide portion is located on the side closest to the first groove structure, while the support portion is connected to the guide portion and located on the side furthest from the first groove structure. By designing the guide portion and support portion for the boss structure, the connection structure between the data acquisition component and the sealing cover is further optimized, improving the convenience and stability of the connection.

[0019] In some technical solutions, optionally, along the length direction of the data acquisition component, the guide portion extends from one edge of the first groove structure to the support portion, and along the thickness direction of the data acquisition component, the height of the guide portion gradually increases.

[0020] In this technical solution, by designing a guide portion that extends from one edge of the first groove structure to the support portion along the length direction of the data acquisition component and gradually increases in height along the thickness direction of the data acquisition component, the installation efficiency and connection stability between the data acquisition component and the sealing cover are further improved.

[0021] In some technical solutions, the data acquisition component may optionally include: a mounting base, the peripheral edge of which is provided with a first groove structure, a boss structure, and a second groove structure, and the mounting base is detachably connected to the sealing cover through the first groove structure, the boss structure, and the second groove structure; a data acquisition module, disposed within the mounting base, for acquiring data from the battery assembly; a seal, connected to the mounting base and located between the mounting base and the sealing cover, for sealing the data acquisition module when the mounting base is installed on the sealing cover; and a fastener, connected to the mounting base and the data acquisition module, for fixing the data acquisition module to the mounting base.

[0022] In this technical solution, the data acquisition component also includes a mounting base, a data acquisition module, a seal, and fasteners. The mounting base structure enables a secure and detachable connection between the data acquisition component and the sealing cover, while ensuring effective sealing and fixation of the data acquisition module, thereby improving the reliability of data acquisition and the overall stability of the system.

[0023] Specifically, the peripheral edge of the mounting base is provided with a first groove structure, a boss structure, and a second groove structure. These structures together form the end face that connects to the sealing cover. The first groove structure is used to accommodate the first snap-fit ​​structure, providing initial positioning and ensuring that the data acquisition component can be accurately aligned with the sealing cover during installation. The boss structure serves as the main guiding and load-bearing part. Through the optimization of its shape and size, it ensures both the strength of the connection and facilitates operation during installation and disassembly.

[0024] In some technical solutions, optionally, the sealing cover is provided with a clearance groove, which is disposed opposite to the data acquisition component, and is used to accommodate the data acquisition component when the data acquisition component is installed in the sealing cover.

[0025] In this technical solution, the sealing cover is provided with a clearance groove, which is positioned opposite to the data acquisition component. When the data acquisition component is installed in the sealing cover, it is accommodated within the clearance groove. By providing a clearance groove on the sealing cover, not only is the space occupation problem of the data acquisition component during installation solved, but the compactness and integration of the entire system are also further improved.

[0026] In some technical solutions, the battery assembly may optionally include a liquid-cooled base plate, which is connected to a sealing cover, forming a sealed cavity between the liquid-cooled base plate and the sealing cover, and the battery body is installed in the sealed cavity.

[0027] In this technical solution, a liquid-cooled base plate is connected to a sealed cover to form a closed cavity, providing the battery with a sealed and temperature-controlled working environment. This design not only enhances the heat dissipation performance of the battery assembly but also helps extend the battery's lifespan and improve its performance stability.

[0028] In some technical solutions, the liquid-cooled base plate may optionally include cooling pipes, which are bent within the liquid-cooled base plate. When the battery assembly is in operation, the coolant in the cooling pipes exchanges heat with the battery body to cool the battery body.

[0029] In this technical solution, the liquid-cooled base plate achieves efficient heat dissipation from the battery body through built-in curved cooling pipes, improving the heat dissipation performance of the battery module. This design not only ensures the temperature stability of the battery module during operation but also helps extend the battery module's lifespan and improves the overall system's reliability and safety.

[0030] In some technical solutions, the battery assembly may optionally include: a maintenance switch, located at the end of the sealed cover, near the data acquisition component, for powering on or off the battery assembly; a high-voltage connector, located at the end of the sealed cover, near the maintenance switch, for outputting the battery assembly's electrical energy to the outside; and an explosion-proof valve, located at the end of the sealed cover, between the maintenance switch and the high-voltage connector, for balancing the internal and external air pressure of the battery assembly.

[0031] In this technical solution, the battery module integrates components such as a maintenance switch, high-voltage connector, and explosion-proof valve, which not only improves the system's safety and maintainability but also enhances the battery module's connectivity with external devices. The rational layout and design of these components make the battery module more complete in terms of performance and functionality, meeting the needs of complex application scenarios.

[0032] According to a second aspect of this application, a battery pack is also proposed, comprising: a battery assembly as described in any of the above embodiments.

[0033] The battery pack provided in this application includes the battery components of any of the above-mentioned technical solutions, and therefore has all the beneficial effects of the battery components, which will not be repeated here.

[0034] According to a third aspect of this application, an energy storage device is also proposed, comprising: a plurality of battery packs as described above, wherein the plurality of battery packs are connected in series and / or in parallel to form an energy storage device.

[0035] The energy storage device provided in this application includes the battery pack of the above-mentioned technical solution, and therefore has all the beneficial effects of the battery pack, which will not be repeated here.

[0036] According to a fourth aspect of this application, an electrical device is also proposed, comprising: an energy storage device as described above.

[0037] The electrical device provided in this application includes the energy storage device of the above-mentioned technical solution, and therefore has all the beneficial effects of the energy storage device, which will not be repeated here.

[0038] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0039] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0040] Figure 1 This is one of the exploded views of a battery pack according to an embodiment of this application;

[0041] Figure 2 This is a second exploded view of a battery pack according to an embodiment of this application;

[0042] Figure 3 for Figure 1 One of the schematic diagrams of the data acquisition component in the battery pack of the illustrated embodiment;

[0043] Figure 4 for Figure 1 A second schematic diagram of the data acquisition component in the battery pack of the embodiment shown;

[0044] Figure 5 This is a schematic diagram of the data acquisition component in a disassembled state according to an embodiment of this application;

[0045] Figure 6 This is a schematic diagram of the data acquisition component in the installed state according to an embodiment of this application;

[0046] Figure 7 for Figure 4 An enlarged schematic diagram of part A of the boss structure in the data acquisition component of the illustrated embodiment;

[0047] Figure 8 This is a schematic diagram of the structure of an electrical device according to an embodiment of this application.

[0048] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0049] 100 Battery assembly, 110 Battery body, 120 Sealing cover, 122 First snap-fit ​​structure, 124 Second snap-fit ​​structure, 130 Data acquisition assembly, 132 First groove structure, 134 Second groove structure, 140 Boss structure, 142 Guide part, 144 Support part, 150 Mounting base, 152 Data acquisition module, 154 Seal, 156 Fastener, 158 Mounting post, 160 Clearance groove, 170 Liquid cooling base plate, 172 Cooling pipe, 180 Maintenance switch, 182 High voltage connector, 184 Explosion-proof valve, 200 Battery pack, 300 Energy storage device, 400 Electrical device. Detailed Implementation

[0050] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0051] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0052] The following reference Figures 1 to 8 This application describes a battery assembly 100, a battery pack 200, an energy storage device 300, and an electrical device 400 provided according to some embodiments of the present application.

[0053] like Figures 1 to 8 As shown, Figure 1 This is one of the exploded views of a battery pack 200 according to an embodiment of this application; Figure 2 This is a second exploded view of a battery pack 200 according to an embodiment of this application; Figure 3 for Figure 1 One of the schematic diagrams of the data acquisition component 130 in the battery pack 200 of the embodiment shown; Figure 4 for Figure 1 A second schematic diagram of the structure of the data acquisition component 130 in the battery pack 200 of the embodiment shown; Figure 5 This is a schematic diagram of the data acquisition component 130 in a disassembled state according to an embodiment of this application; Figure 6 This is a schematic diagram of the data acquisition component 130 in the installed state according to an embodiment of this application; Figure 7 for Figure 4 An enlarged structural diagram of part A of the boss structure 140 in the data acquisition component 130 of the embodiment shown. Figure 8 This is a schematic diagram of the structure of an electrical device 400 according to an embodiment of this application.

[0054] An embodiment of this application provides a battery assembly 100, comprising: a battery body 110; a sealing cover 120 covering the battery body 110, wherein a first snap-fit ​​structure 122 and a second snap-fit ​​structure 124 are provided on the periphery of the end of the sealing cover 120; and a data acquisition assembly 130 connected to the sealing cover 120, wherein a first groove structure 132 and a second groove structure 134 are provided on the bottom periphery of the data acquisition assembly 130 connected to the sealing cover 120, wherein the first groove structure 132 is correspondingly provided with the first snap-fit ​​structure 122, and the second groove structure 134 is correspondingly provided with the second snap-fit ​​structure 124; the data acquisition assembly 130 includes a boss structure 140, which is disposed on one side of the first groove structure 132 and is connected with the first snap-fit ​​structure 124. The first groove structure 132 is arranged adjacent to each other; wherein, the data acquisition component 130 and the sealing cover 120 are detachably connected. When the data acquisition component 130 is in the first position, the first snap-fit ​​structure 122 is located in the first groove structure 132, and the second snap-fit ​​structure 124 is located outside the second groove structure 134 to facilitate the disassembly of the data acquisition component 130. When the data acquisition component 130 is in the second position, the first snap-fit ​​structure 122 is engaged on the boss structure 140 to press the sealing cover 120 and the data acquisition component 130 together, and the second snap-fit ​​structure 124 is engaged in the second groove structure 134 to fix the sealing cover 120 and the data acquisition component 130 together, so as to facilitate the installation and fixation of the data acquisition component 130.

[0055] Specifically, such as Figure 1 and Figure 2As shown, the battery assembly 100 includes a battery body 110, a sealing cover 120, and a data acquisition assembly 130. The sealing cover 120 covers the battery body 110, meaning it encloses the battery body 110. A first latching structure 122 and a second latching structure 124 are provided on the periphery of one end of the sealing cover 120, and these structures are distributed around the periphery of the end of the sealing cover 120 for connecting and securing the data acquisition assembly 130. The data acquisition component 130 is connected to the sealing cover 120. On the side of the data acquisition component 130 connected to the sealing cover 120, a first groove structure 132 and a second groove structure 134 are provided on the bottom peripheral edge. Specifically, the first groove structure 132 and the second groove structure 134 are provided on the peripheral edge of the data acquisition component 130 near the sealing cover 120. The first groove structure 132 corresponds to the first snap-fit ​​structure 122, and the second groove structure 134 corresponds to the second snap-fit ​​structure 124. Thus, when installing the data acquisition component 130, the first snap-fit ​​structure 122 and the first groove structure 132, as well as the second snap-fit ​​structure 124 and the second groove structure 134, can be used to install and fix the data acquisition component 130.

[0056] like Figure 3 and Figure 4 As shown, the data acquisition component 130 is also provided with a boss structure 140. The boss structure 140 is located on one side of the first groove structure 132 and is adjacent to the first groove structure 132. That is, the boss structure 140 is located on one side of the first groove structure 132 and is connected to the edge of the first groove structure 132. It can also be understood that the boss structure 140 is transitionally connected to the edge of the first groove structure 132.

[0057] The data acquisition component 130 is detachably connected to the sealing cover 120, meaning that the data acquisition component 130 and the sealing cover 120 are detachably connected in a sliding manner. When the data acquisition component 130 slides to the first position along the length direction of the sealing cover 120, since the width of the first groove is greater than the width of the first snap-fit ​​structure 122, the first snap-fit ​​structure 122 can be accommodated in the first groove structure 132. At this time, the second snap-fit ​​structure 124 is located outside the second groove structure 134, so the data acquisition component 130 can be easily detached from the sealing cover 120 for easy disassembly. As the data acquisition component 130 continues to slide along the length of the sealing cover 120 to the second position, the first snap-fit ​​structure 122 is engaged with the boss structure 140. At this time, the first snap-fit ​​structure 122 and the boss structure 140 cooperate, and the boss structure 140 can press the first snap-fit ​​structure 122 tightly to press the sealing cover 120 and the data acquisition component 130 together, so that the data acquisition component 130 and the sealing cover 120 are tightly connected together. At this time, the second snap-fit ​​structure 124 is engaged in the second groove structure 134 to fix the sealing cover 120 and the data acquisition component 130, and prevent the data acquisition component 130 from moving left and right relative to the sealing cover 120, so as to facilitate the installation and fixation of the data acquisition component 130, so that the data acquisition component 130 is stably installed and connected to the sealing cover 120, realizing the quick installation and disassembly of the data acquisition component 130.

[0058] Specifically, the battery assembly 100 provided in this application, through the setting of a snap-fit ​​structure, enables quick, easy, and stable connection or disassembly between the data acquisition assembly 130 and the sealing cover 120. This not only solves the problems of easy damage and cumbersome replacement of data acquisition modules in traditional battery packs, but also significantly improves maintenance efficiency and convenience.

[0059] Specifically, such as Figure 1 and Figure 2 As shown, in the structure of the battery assembly 100, the sealing cover 120 serves as a protective shell for the battery body 110. It not only provides a seal but also provides a reliable connection point for the data acquisition assembly 130 via the first snap-fit ​​structure 122 and the second snap-fit ​​structure 124 on the periphery of the end of the sealing cover 120. The data acquisition assembly 130, through the first groove structure 132 and the second groove structure 134 at its bottom, cooperates with the first snap-fit ​​structure 122 and the second snap-fit ​​structure 124 of the sealing cover 120, enabling the positioning, connection, and disassembly of the data acquisition assembly 130 relative to the sealing cover 120.

[0060] Specifically, such as Figure 5 and Figure 6As shown, the data acquisition component 130 is provided with a boss structure 140. The boss structure 140 is located on one side of the first groove structure 132 and adjacent to the first groove structure 132. This allows the first latching structure 122 to engage with the boss structure 140 when the data acquisition component 130 slides to the second position. Through the support and tightening action of the boss structure 140, the sealing cover 120 and the data acquisition component 130 are pressed together, achieving a connection between the sealing cover 120 and the data acquisition component 130 and enhancing the stability of the connection. At the same time, the second latching structure 124 is also engaged within the second groove structure 134, thereby preventing the data acquisition component 130 from moving in the left-right direction and ensuring the stability of the data acquisition component 130 during use.

[0061] Furthermore, this snap-fit ​​connection design also brings convenience to maintenance. When it is necessary to disassemble the data acquisition component 130, simply slide the data acquisition component 130 along the length of the sealing cover 120 to the first position. The first position can be understood as the disassembly position of the data acquisition component 130, that is, the initial state of the data acquisition component 130 before installation. At this time, the first snap-fit ​​structure 122 will be accommodated in the first groove structure 132, and the second snap-fit ​​structure 124 will be located outside the second groove structure 134. Thus, the data acquisition component 130 can be easily removed from the sealing cover 120 without the need to use tools to disassemble multiple fastening parts, which greatly simplifies the disassembly process and improves maintenance efficiency. When it is necessary to install and fix the data acquisition component 130, simply slide the data acquisition component 130 along the length of the sealing cover 120 to the second position. The second position can be understood as the installation and fixing position of the data acquisition component 130, that is, the completed state after the data acquisition component 130 is installed. At this time, the first snap-fit ​​structure 122 is engaged on the boss structure 140, and the second snap-fit ​​structure 124 is engaged in the second groove structure 134, so that the data acquisition component 130 can be firmly connected to the sealing cover 120, realizing the quick installation and fixing of the data acquisition component 130.

[0062] Specifically, in related technologies, the data acquisition module of the battery pack is prone to damage and needs frequent replacement. Due to the large size and weight of the energy storage battery pack, disassembling and repairing the data acquisition module is quite troublesome. Usually, a maintenance port is reserved in the design to facilitate disassembly and maintenance. However, the current maintenance port design has a cumbersome disassembly process, requiring the use of tools to remove multiple fasteners before maintenance can be performed. This results in low maintenance efficiency and an easy risk of losing or omitting disassembled parts.

[0063] In response to this issue, such as Figure 1 and Figure 2As shown, this application designs a snap-fit ​​connection structure, specifically including a first snap-fit ​​structure 122 and a second snap-fit ​​structure 124 on the sealing cover 120, and a first groove structure 132 and a second groove structure 134 on the data acquisition component 130, as well as a boss structure 140 on one side of the data acquisition component 130. This snap-fit ​​connection structure utilizes the sliding of the data acquisition component 130 along the length direction of the sealing cover 120 to achieve quick connection and disassembly with the sealing cover 120. During disassembly, there is no need to use tools to disassemble multiple fastening parts; simply slide the data acquisition component 130 to the first position, so that the first snap-fit ​​structure 122 is accommodated in the first groove structure 132, and the second snap-fit ​​structure 124 is located outside the second groove structure 134, and the data acquisition component 130 can be easily disassembled. During installation, the data acquisition component 130 is slid to the second position, causing the first snap-fit ​​structure 122 to engage with the boss structure 140, and the second snap-fit ​​structure 124 to engage with the second groove structure 134, thus achieving a secure connection between the data acquisition component 130 and the sealing cover 120. This design not only simplifies the disassembly and maintenance process of the data acquisition component 130 and improves maintenance efficiency, but also avoids the problem of lost or omitted parts. Furthermore, this snap-fit ​​connection structure has advantages such as simple structure, ease of manufacturing, and ease of installation.

[0064] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, there are multiple first snap-fit ​​structures 122 and multiple second snap-fit ​​structures 124. The multiple first snap-fit ​​structures 122 are evenly distributed along the length direction of the sealing cover 120, and the multiple second snap-fit ​​structures 124 are evenly distributed along the width direction of the sealing cover 120.

[0065] Specifically, such as Figure 2 As shown, there are multiple first snap-fit ​​structures 122 and second snap-fit ​​structures 124. The multiple first snap-fit ​​structures 122 are evenly distributed along the length of the sealing cover 120, and the multiple second snap-fit ​​structures 124 are evenly distributed along the width of the sealing cover 120. By evenly distributing multiple first snap-fit ​​structures 122 and second snap-fit ​​structures 124 along the length and width of the sealing cover 120, the connection stability between the data acquisition component 130 and the sealing cover 120 is further enhanced, while making the disassembly and installation process smoother and more reliable.

[0066] Specifically, such as Figure 2As shown, multiple first snap-fit ​​structures 122 are evenly distributed along the length direction J of the sealing cover 120, enabling them to engage the data acquisition component 130 from different positions along the length direction when the data acquisition component 130 slides to the second position, ensuring that the data acquisition component 130 will not easily slide or fall off due to external force in the length direction. Similarly, multiple second snap-fit ​​structures 124 are evenly distributed along the width direction K of the sealing cover 120, enabling them to further fix the data acquisition component 130 in the width direction after it is installed in place, enhancing the stability and reliability of the connection.

[0067] Furthermore, the evenly distributed design of the first and second snap-fit ​​structures 122 and 124 can also disperse the pressure of the data acquisition component 130 on the sealing cover 120, avoiding deformation or damage to the sealing cover 120 due to excessive force at a single point. Simultaneously, during disassembly, the even distribution of the first and second snap-fit ​​structures 122 and 124 makes the disassembly process smoother, avoiding uneven force or snap-fit ​​damage caused by disassembly at a single point.

[0068] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, there are multiple first groove structures 132 and multiple boss structures 140, which are evenly distributed along the length direction of the data acquisition component 130, and the multiple first groove structures 132 are corresponding to multiple first buckle structures 122. There are multiple second groove structures 134, which are evenly distributed along the width direction of the data acquisition component 130, and the multiple second groove structures 134 are corresponding to multiple second buckle structures 124.

[0069] Specifically, such as Figure 3 and Figure 4 As shown, by evenly distributing multiple first groove structures 132, boss structures 140 and second groove structures 134 along the length direction M and width direction N of the data acquisition component 130, and setting them one-to-one with the first snap structure 122 and the second snap structure 124 on the sealing cover 120, the connection accuracy and stability between the data acquisition component 130 and the sealing cover 120 are further improved.

[0070] Specifically, such as Figure 2As shown, multiple first groove structures 132 are arranged in a one-to-one correspondence with multiple first snap-fit ​​structures 122. This ensures that when the data acquisition component 130 slides to the second position, each first snap-fit ​​structure 122 can accurately snap onto its corresponding boss structure 140, thereby avoiding connection instability or damage caused by misalignment. Simultaneously, this one-to-one correspondence design also allows for more uniform force distribution along the length of the data acquisition component 130, improving connection stability and reliability. Furthermore, the multiple boss structures 140 provide additional support and fixation for the first snap-fit ​​structures 122 after the data acquisition component 130 is installed, enhancing connection stability. The boss structures 140 can cooperate with the first snap-fit ​​structures 122 to form a tighter connection structure, effectively preventing the data acquisition component 130 from falling off or loosening.

[0071] Similarly, the multiple second groove structures 134 are configured in a one-to-one correspondence with the multiple second snap-fit ​​structures 124. This ensures that after the data acquisition component 130 is installed, each second snap-fit ​​structure 124 can be accurately engaged in the corresponding second groove structure 134, thereby achieving a stable connection of the data acquisition component 130 in the width direction. This one-to-one correspondence design also makes the disassembly process smoother, avoiding disassembly difficulties or damage caused by snap-fit ​​misalignment.

[0072] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, the boss structure 140 includes: a guide portion 142, disposed on the side near the first groove structure 132, which guides the first snap-fit ​​structure 122 when the data acquisition component 130 is installed on the sealing cover 120; and a support portion 144, connected to the guide portion 142 and located on the side away from the first groove structure 132, which tightens and fixes the first snap-fit ​​structure 122 when the data acquisition component 130 is installed on the sealing cover 120.

[0073] Specifically, such as Figure 7 As shown, the boss structure 140 includes a guide portion 142 and a support portion 144. The guide portion 142 is located on the side closest to the first groove structure 132, and the support portion 144 is connected to the guide portion 142 and located on the side furthest from the first groove structure 132. By designing the guide portion 142 and the support portion 144 for the boss structure 140, the connection structure between the data acquisition component 130 and the sealing cover 120 is further optimized, improving the convenience and stability of the connection.

[0074] Specifically, the guide portion 142 is located on one side near the first groove structure 132, and its shape and size match the movement trajectory of the first snap-fit ​​structure 122. During the installation of the data acquisition assembly 130 onto the sealing cover 120, the guide portion 142 guides the first snap-fit ​​structure 122 to slide along a predetermined path from the first groove structure 132 onto the support portion 144, thereby avoiding installation difficulties or damage caused by sliding misalignment. This guide design not only improves the ease of installation but also ensures the accurate alignment and connection buffer of the first snap-fit ​​structure 122, providing a guarantee for subsequent stable connection.

[0075] Furthermore, the support portion 144 is connected to the guide portion 142 and is located on the side away from the first groove structure 132. After the data acquisition component 130 is installed in place, the support portion 144 can press against the first snap-fit ​​structure 122 to prevent it from loosening or falling off due to external force. This pressing and fixing effect further enhances the stability of the connection, making the installation of the data acquisition component 130 on the sealing cover 120 more reliable.

[0076] Furthermore, the synergistic effect of the guide portion 142 and the support portion 144 can effectively distribute the pressure of the data acquisition component 130 on the sealing cover 120, avoiding deformation or damage to the sealing cover 120 due to excessive force at a single point. This force-distributing design not only improves the durability of the connection but also extends the service life of the data acquisition component 130 and the sealing cover 120.

[0077] In some embodiments, optionally, such as Figure 7 As shown, along the length of the data acquisition component 130, the guide portion 142 extends from one side edge of the first groove structure 132 toward the support portion 144, and along the thickness of the data acquisition component 130, the height of the guide portion 142 gradually increases.

[0078] Specifically, such as Figure 7 As shown, by designing the guide portion 142 to extend from one side edge of the first groove structure 132 to the support portion 144 along the length direction M of the data acquisition component 130, and the height of the guide portion 142 gradually increases along the thickness direction P of the data acquisition component 130, the installation efficiency and connection stability between the data acquisition component 130 and the sealing cover 120 are further improved.

[0079] Specifically, such as Figure 5 and Figure 6As shown, before the data acquisition component 130 is installed, the lower part of the guide portion 142 corresponds to the position of the first snap-fit ​​structure 122 on the sealing cover 120. This design ensures that, in the initial state, the first groove structure 132 of the data acquisition component 130 coincides with the first snap-fit ​​structure 122 of the sealing cover 120, meaning the first snap-fit ​​structure 122 is accommodated within the first groove structure 132, facilitating the initial positioning and installation of the data acquisition component 130. As the data acquisition component 130 begins to move along the installation direction, the height of the guide portion 142 gradually increases. This gradual height design guides the first snap-fit ​​structure 122 on the sealing cover 120 to smoothly slide along the inclined surface of the guide portion 142 until the first snap-fit ​​structure 122 reaches and snaps onto the corresponding support portion 144 on the data acquisition component 130.

[0080] After the first snap-fit ​​structure 122 is fully embedded in the support portion 144, the guide portion 142 reaches its highest point, and the support portion 144 presses firmly against the first snap-fit ​​structure 122, ensuring a stable connection between the data acquisition component 130 and the sealing cover 120. This design not only makes the installation process smoother and avoids installation difficulties caused by misalignment of the first snap-fit ​​structure 122, but also improves the stability and reliability of the connection.

[0081] In addition, the height-gradient extension design of the guide section 142 can effectively disperse the impact force generated during installation, protect the integrity of the first snap-fit ​​structure 122 and the data acquisition component 130, and extend the service life of the product.

[0082] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, the data acquisition component 130 further includes: a mounting base 150, the peripheral edge of which is provided with a first groove structure 132, a boss structure 140, and a second groove structure 134, and the mounting base 150 is detachably connected to the sealing cover 120 through the first groove structure 132, the boss structure 140, and the second groove structure 134; a data acquisition module 152, disposed within the mounting base 150, for acquiring data from the battery assembly 100; a sealing element 154, connected to the mounting base 150 and located between the mounting base 150 and the sealing cover 120, for sealing the data acquisition module 152 when the mounting base 150 is installed on the sealing cover 120; and a fastener 156, connected to the mounting base 150 and the data acquisition module 152, for fixing the data acquisition module 152 to the mounting base 150.

[0083] Specifically, such as Figure 3As shown, the data acquisition component 130 also includes a mounting base 150, a data acquisition module 152, a seal 154, and a fastener 156. The mounting base 150 structure enables a stable and detachable connection between the data acquisition component 130 and the sealing cover 120, while ensuring effective sealing and fixation of the data acquisition module 152, thereby improving the reliability of data acquisition and the overall stability of the system.

[0084] Specifically, the peripheral edge of the mounting base 150 is provided with a first groove structure 132, a boss structure 140, and a second groove structure 134. These structures together form the end face that connects to the sealing cover 120. The first groove structure 132 is used to accommodate the first snap-fit ​​structure 122, providing initial positioning and ensuring that the data acquisition component 130 can be accurately aligned with the sealing cover 120 during installation. The boss structure 140 serves as the main guiding and load-bearing part. Through the optimization of its shape and size, it ensures the strength of the connection while facilitating operation during installation and disassembly.

[0085] Specifically, the seal 154 is connected to the mounting base 150. The seal 154 can be sealing foam, attached to the mounting base 150 by adhesive, or it can be an O-ring or sealing strip to achieve a tight seal between the mounting base 150 and the sealing cover 120, preventing the intrusion of external moisture, dust, and other harmful substances, and protecting the data acquisition module 152 from damage. Because the seal 154 is connected to the mounting base 150 and located between the mounting base 150 and the sealing cover 120, it forms an effective sealing barrier. After the mounting base 150 is installed on the sealing cover 120, the seal 154 can be fully compressed and deformed to fill the tiny gaps between them, ensuring that the data acquisition module 152 can operate normally even in harsh environments.

[0086] Specifically, the data acquisition module 152 is installed inside the mounting base 150. Utilizing sensor and signal processing technology, it can collect various data of the battery assembly 100 in real time and accurately, such as voltage, current, and temperature, providing key information for the battery management system.

[0087] Specifically, such as Figure 3 As shown, the mounting base 150 is also provided with mounting posts 158. Fasteners 156 are connected via mounting posts 158 to connect the data acquisition module 152 to the mounting base 150, thus fixing the data acquisition module 152. Fasteners 156 can use threaded connections, snap-fit ​​connections, or other reliable connection methods to ensure that the data acquisition module 152 will not loosen or fall off on the mounting base 150 due to vibration or impact, thereby ensuring the stability and accuracy of data acquisition.

[0088] In some embodiments, optionally, such as Figure 2As shown, the sealing cover 120 is provided with a relief groove 160, which is disposed opposite to the data acquisition component 130. When the data acquisition component 130 is installed in the sealing cover 120, the relief groove 160 is used to accommodate the data acquisition component 130.

[0089] Specifically, such as Figure 2 As shown, the sealing cover 120 is provided with a clearance groove 160, which is disposed opposite to the data acquisition component 130. When the data acquisition component 130 is installed in the sealing cover 120, the data acquisition component 130 is installed and accommodated in the clearance groove 160. By providing the clearance groove 160 on the sealing cover 120, not only is the space occupation problem of the data acquisition component 130 during installation solved, but the compactness and integration of the entire system are also further improved.

[0090] Specifically, such as Figure 2 As shown, the clearance groove 160 is designed to match the shape and size of the data acquisition component 130 to ensure that the data acquisition component 130 can be fully embedded in the clearance groove 160 when it is installed on the sealing cover 120. In this way, the installation space that might have been increased due to the protrusion of the data acquisition component 130 is effectively saved, making the layout of the entire system more compact and reasonable.

[0091] Furthermore, the design of the clearance slot 160 also takes into account the heat that the data acquisition component 130 may generate during operation. By providing a relatively open installation environment for the data acquisition component 130, the clearance slot 160 helps dissipate heat, thereby improving the working efficiency and stability of the data acquisition component 130 to a certain extent.

[0092] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the battery assembly 100 also includes a liquid-cooled base plate 170, which is connected to the sealing cover 120. A sealed cavity is formed between the liquid-cooled base plate 170 and the sealing cover 120, and the battery body 110 is installed in the sealed cavity.

[0093] Specifically, such as Figure 1 As shown, by connecting the liquid-cooled base plate 170 to the sealing cover 120, a sealed cavity is formed, providing a sealed and temperature-controlled working environment for the battery body 110. This design not only enhances the heat dissipation performance of the battery assembly 100, but also helps to extend the battery's lifespan and improve its performance stability.

[0094] Specifically, the liquid-cooled base plate 170 is internally designed with cooling channels. These channels absorb and remove the heat generated by the battery body 110 during operation through circulating coolant. Simultaneously, the sealed cavity formed between the liquid-cooled base plate 170 and the sealing cover 120 provides a protective layer that isolates the battery body 110 from the external environment, effectively preventing the intrusion of harmful substances such as dust and moisture, thereby further ensuring the safety and reliability of the battery assembly 100.

[0095] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the liquid-cooled base plate 170 includes a cooling pipe 172, which is bent within the liquid-cooled base plate 170. When the battery assembly 100 is in operation, the coolant in the cooling pipe 172 exchanges heat with the battery body 110 to cool the battery body 110.

[0096] Specifically, such as Figure 1 As shown, the liquid-cooled base plate 170 achieves efficient heat dissipation for the battery body 110 through the built-in curved cooling pipes 172, thereby improving the heat dissipation performance of the battery assembly 100. This design not only ensures the temperature stability of the battery assembly 100 during operation but also helps to extend the service life of the battery assembly 100 and improve the reliability and safety of the overall system.

[0097] Specifically, the cooling pipe 172 is arranged in a specific curved path inside the liquid-cooled base plate 170 to maximize contact with the battery body 110, increasing the contact area and thus more effectively absorbing the heat generated by the battery body 110. The coolant circulates within the cooling pipe 172. When the battery assembly 100 is operating, the heat generated by the battery body 110 is transferred to the cooling pipe 172 through heat conduction, where it is absorbed and carried away by the coolant. The coolant then releases the heat to the external environment through a heat exchange system, completing the entire heat dissipation cycle.

[0098] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the battery assembly 100 also includes: a maintenance switch 180, disposed at the end of the sealed cover 120, located on the side near the data acquisition component 130, for energizing or de-energizing the battery assembly 100; a high-voltage connector 182, disposed at the end of the sealed cover 120, located on the side near the maintenance switch 180, for outputting the electrical energy of the battery assembly 100 to the outside; and an explosion-proof valve 184, disposed at the end of the sealed cover 120, located between the maintenance switch 180 and the high-voltage connector 182, for balancing the internal and external air pressure of the battery assembly 100.

[0099] Specifically, such as Figure 1As shown, the battery module 100, by integrating components such as the maintenance switch 180, the high-voltage connector 182, and the explosion-proof valve 184, not only improves the safety and maintainability of the system but also enhances the connectivity of the battery module 100 with external devices. The rational layout and design of these components make the battery module 100 more complete in terms of performance and function, meeting the needs of complex application scenarios.

[0100] Specifically, the maintenance switch 180 is located at the end of the sealed cover 120, near the data acquisition component 130, facilitating easy power-on or power-off operation of the battery assembly 100 by operators when needed. This simplifies the maintenance process, reduces operational difficulty, and helps to quickly cut off power in emergencies. The high-voltage connector 182 is located on one side of the maintenance switch 180, used to safely and reliably output the electrical energy of the battery assembly 100 to external devices. The explosion-proof valve 184 is located between the maintenance switch 180 and the high-voltage connector 182, used to balance the pressure difference between the inside and outside of the battery assembly 100. When excessive pressure occurs inside the battery assembly 100 due to various reasons, the explosion-proof valve 184 can automatically open to release the internal pressure, preventing safety accidents caused by excessive pressure, improving the safety of the battery assembly 100, and also helping to extend its service life.

[0101] Specifically, in the implementation, the maintenance switch 180 can be specifically configured as an MSD (Maintenance Switch Disconnector) manual maintenance switch 180, and the clearance slot 160 can be specifically configured as a BMU (Battery Monitoring Unit). The battery detection unit (BMU) avoids gaps. The data acquisition module 152 can be specifically a BMU module. The battery body 110 can be specifically a battery cell. The sealing cover 120 can be specifically a plastic sealing cover. The first snap-fit ​​structure 122 can be specifically a compression limiting snap-fit. The second snap-fit ​​structure 124 can be specifically a displacement limiting snap-fit. The sealing element 154 is sealing foam. The compression limiting snap-fit ​​ensures that the compression rate of the sealing foam reaches the design value. After installation to the design stroke, a reliable seal can be formed. The displacement limiting snap-fit ​​ensures that the installed data acquisition component 130 is reliably fixed on the sealing cover and will not be displaced due to vibration or impact during transportation, thus avoiding the risk of falling off. During installation, the data acquisition component 130 only needs to be moved horizontally a certain distance and pushed into the design stroke to complete the installation. It is easy to install and disassemble, improves production and after-sales work efficiency, reduces design costs, and has no extra parts, so there will be no problem of missing or omitted parts.

[0102] Specifically, such as Figure 7As shown, when the data acquisition component 130 is in the initial installation position, that is, when the data acquisition component 130 is in the first position, the first groove structure 132 corresponds to the first snap-fit ​​structure 122. The width of the first groove structure 132 is greater than the width of the first snap-fit ​​structure 122. The mounting base 150 is designed with a gradually changing boss structure 140. When the data acquisition component 130 moves towards the boss structure 140, the boss structure 140 is restricted by the compression limit snap-fit ​​and moves in the direction of compressing the thickness of the sealing foam. When the highest point of the gradually changing boss structure 140 is reached, the sealing foam reaches the maximum compression. The thickness of the sealing foam is set to T, the designed compression is 50%, the flange edge height of the mounting base 150 is D1, the height of the mounting base 150 and the boss structure 140 is D2, and the height of the compression limit snap-fit ​​is designed to be H. Therefore, the design satisfies H = D2 + 50% × T, and H > D1 + T. The sealing cover is designed with a displacement limiting buckle. When the data acquisition component 130 moves horizontally to the designed stroke, the displacement limiting buckle engages in the second groove structure 134 of the mounting base 150. That is, when the data acquisition component 130 is in the second position, the data acquisition component 130 cannot move horizontally unless manually intervened and the displacement limiting buckle is lifted.

[0103] like Figure 5 and Figure 6 The diagram illustrates the states of the data acquisition component 130 before and after installation. Before installation, in the initial state (i.e., when the data acquisition component 130 is in the first position), the first groove structure 132 of the data acquisition component 130 coincides with the compression limiting buckle of the sealing cover. After installation, i.e., when the data acquisition component 130 is in the second position, the displacement limiting buckle of the sealing cover is embedded in the second groove structure 134 of the data acquisition component 130, and at this time, the compression displacement buckle of the sealing cover is at the highest point of the boss structure 140.

[0104] According to the second aspect of this application, such as Figure 1 and Figure 8 As shown, a battery pack 200 is also proposed, including a battery assembly 100 as described in any of the above embodiments.

[0105] The battery pack 200 provided in this application includes the battery component 100 of any of the above embodiments, and therefore has all the beneficial effects of the battery component 100, which will not be repeated here.

[0106] According to the third aspect of this application, such as Figure 8 As shown, an energy storage device 300 is also proposed, comprising: a plurality of battery packs 200 as described in the above embodiments, wherein the plurality of battery packs 200 are connected in series and / or in parallel to form the energy storage device 300.

[0107] The energy storage device 300 provided in this application includes the battery pack 200 of the above embodiment, and therefore has all the beneficial effects of the battery pack 200, which will not be repeated here.

[0108] According to the fourth aspect of this application, such as Figure 8 As shown, an electrical device 400 is also proposed, including: an energy storage device 300 as described in the above embodiments.

[0109] The electrical device 400 provided in this application includes the energy storage device 300 of the above embodiments, and therefore has all the beneficial effects of the energy storage device 300, which will not be repeated here.

[0110] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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 of this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0111] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0112] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery assembly, characterized in that, include: Battery body; A sealing cover is provided on the battery body, and the periphery of the end of the sealing cover is provided with a first buckle structure and a second buckle structure; A data acquisition component is connected to the sealing cover. The bottom peripheral edge of the data acquisition component connected to the sealing cover is provided with a first groove structure and a second groove structure. The first groove structure is corresponding to the first buckle structure, and the second groove structure is corresponding to the second buckle structure. The data acquisition component includes a boss structure, which is disposed on one side of the first groove structure and adjacent to the first groove structure. The data acquisition component is detachably connected to the sealing cover. When the data acquisition component is in the first position, the first snap-fit ​​structure is located in the first groove structure, and the second snap-fit ​​structure is located outside the second groove structure to facilitate the disassembly of the data acquisition component. When the data acquisition component is in the second position, the first snap-fit ​​structure is engaged with the boss structure to press the sealing cover and the data acquisition component together, and the second snap-fit ​​structure is engaged with the second groove structure to fix the sealing cover and the data acquisition component together, so as to facilitate the installation and fixation of the data acquisition component.

2. The battery assembly according to claim 1, characterized in that, The number of the first snap-fit ​​structure and the second snap-fit ​​structure is multiple, with the multiple first snap-fit ​​structures evenly distributed along the length direction of the sealing cover and the multiple second snap-fit ​​structures evenly distributed along the width direction of the sealing cover.

3. The battery assembly according to claim 1, characterized in that, The number of the first groove structure and the number of the protrusion structure are multiple. The multiple first groove structures and the multiple protrusion structures are evenly distributed along the length direction of the data acquisition component, and the multiple first groove structures are corresponding to the multiple first buckle structures one by one. The number of the second groove structure is multiple. The multiple second groove structures are evenly distributed along the width direction of the data acquisition component, and the multiple second groove structures are corresponding to the multiple second buckle structures one by one.

4. The battery assembly according to claim 1, characterized in that, The boss structure includes: A guide portion, located on one side near the first groove structure, is used to guide the first snap-fit ​​structure when the data acquisition component is installed on the sealing cover. The support portion, connected to the guide portion and located on the side away from the first groove structure, is used to tighten and fix the first snap-fit ​​structure when the data acquisition component is installed on the sealing cover.

5. The battery assembly according to claim 4, characterized in that, Along the length of the data acquisition component, the guide portion extends from one edge of the first groove structure toward the support portion, and along the thickness of the data acquisition component, the height of the guide portion gradually increases.

6. The battery assembly according to claim 1, characterized in that, The data acquisition component also includes: The mounting base has a first groove structure, a boss structure and a second groove structure on its peripheral edge. The mounting base is detachably connected to the sealing cover through the first groove structure, the boss structure and the second groove structure. A data acquisition module, disposed within the mounting base, is used to acquire data from the battery assembly; A sealing element, connected to the mounting base and located between the mounting base and the sealing cover, is used to seal the data acquisition module when the mounting base is installed on the sealing cover. Fasteners, connected to the mounting base and the data acquisition module, are used to fix the data acquisition module to the mounting base.

7. The battery assembly according to claim 1, characterized in that, The sealing cover is provided with a clearance groove, which is disposed opposite to the data acquisition component and is used to accommodate the data acquisition component when the data acquisition component is installed in the sealing cover.

8. The battery assembly according to claim 1, characterized in that, The battery assembly also includes a liquid-cooled base plate, which is connected to the sealing cover, forming a sealed cavity between the liquid-cooled base plate and the sealing cover, and the battery body is installed in the sealed cavity.

9. The battery assembly according to claim 8, characterized in that, The liquid-cooled base plate includes a cooling pipe, which is bent within the liquid-cooled base plate. When the battery assembly is in operation, the coolant in the cooling pipe exchanges heat with the battery body to cool the battery body.

10. The battery assembly according to any one of claims 1 to 9, characterized in that, The battery assembly also includes: A maintenance switch is located at the end of the sealed cover, near the data acquisition component, and is used to power on or off the battery assembly. A high-voltage connector is located at the end of the sealing cover, near the maintenance switch, and is used to output the electrical energy of the battery assembly to the outside. An explosion-proof valve is located at the end of the sealing cover, between the maintenance switch and the high-voltage connector, and is used to balance the internal and external air pressure of the battery assembly.

11. A battery pack, characterized in that, Includes the battery assembly as described in any one of claims 1 to 10.

12. An energy storage device, characterized in that, It includes multiple battery packs as described in claim 11, wherein the multiple battery packs are connected in series and / or in parallel to form the energy storage device.

13. An electrical appliance, characterized in that, The electrical device includes an energy storage device as described in claim 12 for providing electrical energy.

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