Battery device, energy storage system and electric device

Abstract

The embodiment of the application relates to the technical field of energy storage, and provides a battery device, an energy storage system and a power utilization equipment, the battery device comprising: a battery and an end plate, the end plate is arranged at an end of the battery, and a first connecting part is arranged on the end plate; a wire harness socket, a second connecting part is arranged on the wire harness socket, the second connecting part is detachably connected with the first connecting part, and when the first connecting part is connected with the second connecting part, the wire harness socket abuts against the end plate, so that the wire harness socket is supported on the end plate, thereby at least facilitating the fixation of the wire harness socket.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to a battery device, energy storage system and electrical equipment. Background Technology

[0002] Currently, with technological advancements, the application range of power batteries is becoming increasingly wide, encompassing both production and daily life. Power batteries, also known as rechargeable batteries, are widely used. Low-capacity power batteries are used in small electric vehicles, while high-capacity power batteries are used in large electric vehicles, such as hybrid or electric vehicles. In power battery packs, each pack consists of multiple battery modules, and each module contains several individual cells and a structural frame composed of end plates and side plates. The end plates and side plates surround all the individual cells, forming a robust encapsulation system. The combination of end plates and side plates ensures the physical safety of the cells within the battery module, preventing displacement during vehicle operation or external impacts. It also provides necessary support for the thermal management of the cells, creating a stable and enclosed environment that guarantees normal cell operation and extends the lifespan of the battery module.

[0003] However, in existing technologies, end plates generally only serve to fix the battery cells. The end plates have a single function and cannot be effectively connected with other components on the battery device. Summary of the Invention

[0004] This application provides a battery device, an energy storage system, and an electrical appliance, which at least facilitates the fixing of the wiring harness socket.

[0005] According to some embodiments of this application, one aspect of this application provides a battery device, including: a battery and an end plate, the end plate being disposed at the end of the battery and having a first connecting portion; a wire harness socket, the wire harness socket having a second connecting portion, the second connecting portion being detachably connected to the first connecting portion, and when the first connecting portion and the second connecting portion are connected, the wire harness socket abuts against the end plate so that the wire harness socket is supported on the end plate.

[0006] In some embodiments, one of the first connecting portion and the second connecting portion is a snap-fit ​​hole, and the other of the first connecting portion and the second connecting portion is a snap-fit ​​protrusion.

[0007] In some embodiments, the snap-fit ​​protrusion includes a snap-fit ​​body and a first snap-fit ​​arm and a second snap-fit ​​arm spaced apart on the snap-fit ​​body. At least one of the first snap-fit ​​arm and the second snap-fit ​​arm is provided with an abutment portion so that when the first snap-fit ​​arm and the second snap-fit ​​arm are snapped into the snap-fit ​​hole, the abutment portion abuts against the edge of the snap-fit ​​hole.

[0008] In some embodiments, the snap-fit ​​hole is located at the end of the end plate, and at least a portion of the harness socket extends out of the end plate on the side away from the battery.

[0009] In some embodiments, the end plate is provided with a weight-reducing cutout.

[0010] In some embodiments, the end plate is provided with a mounting through hole, which extends through both ends of the end plate in a preset direction. The weight-reducing hollow portion includes a weight-reducing hole, which is located in the middle of the mounting through hole and communicates with it.

[0011] In some embodiments, the battery device further includes a reinforcement member disposed at the weight reduction hole and connected to the weight reduction edge of the weight reduction hole.

[0012] In some embodiments, at least two weight-reducing holes are provided on the mounting through hole, and the at least two weight-reducing holes are spaced apart along the periphery of the mounting through hole. There are at least two reinforcing members, and at least one reinforcing member is provided in each mounting through hole. The reinforcing members at one weight-reducing hole and the reinforcing members at another weight-reducing hole are staggered along a preset direction.

[0013] In some embodiments, the side of the reinforcing member near the mounting through hole is an arc surface adapted to the inner wall of the mounting through hole; and / or, the mounting through hole is located on the side of the end plate; and / or, there are at least two mounting through holes; and / or, the end plate includes a main body and a mounting portion connected to each other, the mounting portion is provided with mounting through holes, the battery device also includes reinforcing ribs, the ends of the reinforcing ribs are connected to the portion of the mounting portion provided with weight reduction holes, and the reinforcing ribs are attached to the main body.

[0014] In some embodiments, a weight-reducing groove is provided on one side of the end plate, and the end plate further includes: a main reinforcing rib, which is installed on the weight-reducing groove and connected to the groove wall of the weight-reducing groove. The main reinforcing rib surrounds the weight-reducing groove to form a first mounting groove and a second mounting groove. The first mounting groove is arranged around the periphery of the second mounting groove; a lifting part is disposed in the first mounting groove; and a first reinforcing rib is disposed in the second mounting groove and connected to the groove wall of the second mounting groove. The first reinforcing rib, the lifting part, and the main reinforcing rib have at least one connection point.

[0015] In some embodiments, there are two lifting parts, which are located on both sides of the second mounting groove; and / or, there are at least two first reinforcing ribs, which are all disposed in the second mounting groove and are connected at a preset angle.

[0016] In some embodiments, the main reinforcing ribs form a grid-like structure, the first mounting groove includes a plurality of weight-reducing grooves connected sequentially from end to end along the periphery of the second mounting groove, the lifting part is a lifting ring, the outer edge of the lifting ring is connected to the main reinforcing rib, a part of the lifting ring is located in a first mounting groove, and the other part of the lifting ring is located in an adjacent first mounting groove; and / or, the battery device further includes a second reinforcing rib, one end of the second reinforcing rib is connected to the outer ring of the lifting part, the other end of the second reinforcing rib is connected to the inner wall of the first mounting groove, and the first reinforcing rib and the second reinforcing rib are set at a preset angle.

[0017] In some embodiments, the end plate is provided with a limiting groove adapted to the fixing strap, so that at least a portion of the fixing strap is fitted into the limiting groove; and / or, the side of the end plate near the battery is a plane.

[0018] According to some embodiments of this application, another aspect of this application provides an energy storage system, including a battery management system and a battery device, wherein the battery device is the aforementioned battery device, and the battery management system is used to monitor and manage the charging, discharging and temperature of the battery device.

[0019] According to some embodiments of this application, another aspect of this application provides an electrical device including a battery device, the battery device being the aforementioned battery device, and a management interface is provided between the electrical device and the battery device, the management interface adjusting the power consumption of the battery device according to the charging state and remaining power of the battery device.

[0020] The technical solution provided in this application has at least the following advantages:

[0021] The introduction of the first and second connecting parts in this application makes the connection between the wire harness socket and the end plate more stable. This connection method not only ensures the wire harness socket is fixed under normal working conditions, but also allows for convenient and quick disassembly and replacement when needed, improving the maintenance efficiency and flexibility of the entire battery device.

[0022] Furthermore, the design of the wiring harness socket abutting against the end plate helps to improve the thermal management of the battery device. When the wiring harness socket is in direct contact with the end plate, the heat generated by the wiring harness socket can be conducted to the end plate more effectively, and then quickly dissipated through the heat dissipation path of the end plate. This avoids the hot spot effect caused by local heat accumulation and protects the battery cells and wiring harness from overheating damage.

[0023] Furthermore, the detachable connection between the first and second connectors simplifies the battery assembly process. On the production line, the wiring harness socket can be quickly and accurately connected to the end plate, reducing assembly time and improving production efficiency. This design also facilitates later maintenance; if the wiring harness socket or end plate malfunctions, it can be quickly replaced, reducing maintenance costs and time. Attached Figure Description

[0024] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Unless otherwise stated, the drawings in the accompanying drawings do not constitute a limitation on scale. In order to more clearly illustrate the technical solutions in the embodiments of this application or in the conventional art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of a battery device;

[0026] Figure 2 for Figure 1 A magnified view of point A shown below;

[0027] Figure 3 This is a schematic diagram of the overall structure of the end plate of the battery device in one embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the overall structure of the second connection part of the wire harness socket in one embodiment of this application.

[0029] 10. Battery; 20. End plate; 30. Wiring harness socket; 40. Reinforcing component;

[0030] 21. First connecting part; 22. Weight-reducing hollow part; 23. Mounting through hole; 24. Main body; 25. Mounting part; 26. Reinforcing rib; 27. Weight-reducing groove; 28. Main reinforcing rib; 29. ​​Lifting part;

[0031] 201. Limiting plate; 202. Clearance space;

[0032] 271. First mounting slot; 272. Second mounting slot;

[0033] 221. Weight reduction hole;

[0034] 210. First reinforcing rib;

[0035] 211. Limiting groove;

[0036] 212. Second reinforcing rib;

[0037] 31. Second connecting part;

[0038] 311. Snap-fit ​​main body; 312. First snap-fit ​​arm; 313. Second snap-fit ​​arm; 314. Abutment part;

[0039] 301. Plug connector; 302. Socket snap-fit ​​connector;

[0040] 3011, First connection port;

[0041] 3021, socket snap-fit ​​hole. Detailed Implementation

[0042] As can be seen from the background technology, the end plate in the prior art generally only serves to fix the battery cell. The end plate has a single function and cannot be effectively connected with other components on the battery device.

[0043] Therefore, the purpose of this application is to provide a battery device, energy storage system and electrical equipment to address the above problems, which at least facilitates the fixing of the wiring harness socket.

[0044] like Figures 1 to 4 As shown, this application provides a battery device, including: a battery 10 and an end plate 20, the end plate 20 being disposed at the end of the battery 10, and a first connecting portion 21 being disposed on the end plate 20; a wiring harness socket 30, the wiring harness socket 30 being disposed on a second connecting portion 31, the second connecting portion 31 being detachably connected to the first connecting portion 21, and when the first connecting portion 21 and the second connecting portion 31 are connected, the wiring harness socket 30 abuts against the end plate 20 so that the wiring harness socket 30 is supported on the end plate 20.

[0045] By applying the technical solution of this embodiment, the battery device of this application, through the introduction of the first connecting part 21 and the second connecting part 31, makes the connection between the wire harness socket 30 and the end plate 20 more stable. This connection method can not only ensure the fixation of the wire harness socket 30 under normal working conditions, but also make it convenient and quick to disassemble and replace when needed, thereby improving the maintenance efficiency and flexibility of the entire battery device.

[0046] The battery device of this application also simplifies assembly and maintenance. The assembly process is simplified through the detachable connection between the first and second connecting parts. On the production line, the wiring harness socket 30 can be quickly and accurately connected to the end plate 20, reducing assembly time and improving production efficiency. Simultaneously, this design facilitates later maintenance; if the wiring harness socket 30 or the end plate 20 malfunctions, it can be quickly replaced, reducing maintenance costs and time.

[0047] Furthermore, by optimizing the connection method between the wiring harness socket 30 and the end plate 20, the wiring harness socket 30 can fit tightly onto the end plate 20, avoiding additional support structures, thereby saving space inside the battery module and improving battery energy density and overall compactness.

[0048] Optionally, one of the first connecting portion 21 and the second connecting portion 31 is a snap-fit ​​hole, and the other of the first connecting portion 21 and the second connecting portion 31 is a snap-fit ​​protrusion.

[0049] This application enables quick connection and disconnection between the wire harness socket 30 and the end plate 20 through the matching of the snap-fit ​​hole and the snap-fit ​​protrusion, without the need for tools, which greatly improves the efficiency and convenience of on-site operation. When the snap-fit ​​protrusion is embedded in the snap-fit ​​hole, the mechanical locking structure between them can ensure a firm connection, and even when the battery device is subjected to vibration or impact, it can maintain a stable electrical connection and physical fixation.

[0050] like Figure 3 and Figure 4 As shown, in one embodiment of this application, the first connecting part 21 is a snap-fit ​​hole, and the second connecting part 31 is a snap-fit ​​protrusion.

[0051] When the wiring harness socket 30 needs to be inspected or replaced, the snap-fit ​​design allows the operator to easily remove and reinstall the wiring harness socket 30 without disassembling the entire battery unit, saving a significant amount of maintenance time and cost and improving the maintenance efficiency of the battery system.

[0052] The end plate 20 of this application further includes: a limiting plate 201 and a clearance space 202. The limiting plate 201 extends in a horizontal direction and is provided with a first connecting part 21. The first connecting part 21 communicates with the clearance space 202, wherein at least a portion of the second connecting part 31 passes through the first connecting part 21 into the clearance space 202.

[0053] The design of the second connecting part 31 and the first connecting part 21 in this application allows the second connecting part 31 to be automatically positioned and fixed through a simple insertion action, without the need for additional fastening tools or complex manual adjustments, which greatly simplifies the assembly process of the battery device and improves production efficiency.

[0054] In a second embodiment not illustrated in this application, the first connecting portion 21 is a snap-fit ​​protrusion, and the second connecting portion 31 is a snap-fit ​​hole.

[0055] The snap-fit ​​structure of this application allows for rapid assembly. The operator only needs to align the snap-fit ​​protrusion with the snap-fit ​​hole and press gently to complete the connection. There is no need for complicated manual alignment or the use of additional tools, such as screwdrivers or welding equipment, which greatly simplifies the assembly process of the battery device and improves production efficiency.

[0056] like Figure 4 As shown, the snap-fit ​​protrusion includes a snap-fit ​​body 311 and a first snap-fit ​​arm 312 and a second snap-fit ​​arm 313 spaced apart on the snap-fit ​​body 311. At least one of the first snap-fit ​​arm 312 and the second snap-fit ​​arm 313 is provided with an abutment portion 314 so that when the first snap-fit ​​arm 312 and the second snap-fit ​​arm 313 are snapped into the snap-fit ​​hole, the abutment portion 314 abuts against the edge of the snap-fit ​​hole.

[0057] This application improves the stability of the connection with the snap-fit ​​hole by spaced out the first snap-fit ​​arm 312 and the second snap-fit ​​arm 313. The double-arm design provides additional support points, effectively dispersing the stress at the connection point and reducing the risk of connection failure or structural damage caused by excessive force at a single point. Furthermore, the abutment part 314 is provided on at least one of the first snap-fit ​​arm 312 and the second snap-fit ​​arm 313. When the snap-fit ​​protrusion is inserted into the snap-fit ​​hole, the abutment part 314 can tightly abut against the edge of the snap-fit ​​hole, thereby forming an additional physical lock and ensuring the stable position of the wire harness socket 30 on the end plate 20, which significantly enhances the stability of the connection.

[0058] In the embodiments of this application, both the first latching arm 312 and the second latching arm 313 are provided with abutting portions 314. The abutting portions 314 protrude relative to the surfaces of the first latching arm 312 and the second latching arm 313. The abutting portions 314 are elastically provided so that when the second connecting portion 31 passes through the first connecting portion 21, the inner wall of the first connecting portion 21 compresses the abutting portion 314. After the second connecting portion 31 passes through the first connecting portion 21 to the clearance space 202, the abutting portion 314 returns to its initial state under the action of elastic restoring force so as to abut against the limiting plate 201.

[0059] In this application, the abutment portion 314 is compressed by the inner wall surface of the first connecting portion 21 when the second connecting portion 31 passes through the first connecting portion 21. Once the abutment portion 314 has completely passed through and is located in the clearance space 202, the abutment portion 314 returns to its initial state under the action of elastic restoring force, thereby tightly abutting against the limiting plate 201 and forming an elastic locking mechanism. This greatly enhances the connection stability between the wire harness socket 30 and the end plate 20. Even when the battery device is subjected to vibration or impact, this elastic locking can effectively prevent the connection from loosening, ensuring the continuity and reliability of the electrical connection.

[0060] Specifically, the first latching arm 312 and the second latching arm 313 extend in a direction away from each other. The first latching arm 312 is provided with a first transition surface, and the second latching arm 313 is provided with a second transition surface. The first transition surface and the second transition surface are fitted to the inner wall surface of the first connecting part 21.

[0061] In this application, the first transition surface and the second transition surface play a positioning and guiding role during the assembly process, helping the operator to accurately and quickly insert the second connecting part 31 into the first connecting part 21, avoiding assembly difficulties or damage to the wire harness socket caused by misalignment, thereby improving assembly efficiency and accuracy.

[0062] like Figure 2 As shown, the snap-fit ​​hole is located at the end of the end plate 20, and at least a portion of the wire harness socket 30 extends out of the end plate 20 on the side away from the battery 10.

[0063] This application places the snap-fit ​​hole at the end of the end plate 20, so that the wire harness socket 30 can naturally extend out of the other side of the end plate 20. This helps to neatly route the wire harness on the wire harness socket 30 outside the battery device, avoids messy wire arrangement, reduces the risk of wire harnesses getting tangled or squeezed, and helps to improve the service life of the wire harness and the overall electrical performance.

[0064] The wiring harness socket 30 in this application includes a plug connection end 301 and a socket snap-fit ​​end 302 arranged sequentially in a vertical direction. The plug connection end 301 has a first connection port 3011, which is disposed toward the battery monitoring component to connect the wiring harness in the wiring harness socket 30 to the battery monitoring component.

[0065] This application shortens the physical distance of signal transmission, reduces signal attenuation and delay, and improves the response speed and monitoring accuracy of the battery monitoring system by setting the first connection port 3011 of the plug connection end 301 toward the battery monitoring component.

[0066] Preferably, the socket snap-fit ​​end 302 in this application snaps into the second connecting part 31, and the second connecting part 31 is provided with a socket snap-fit ​​hole 3021, wherein the socket snap-fit ​​hole 3021 is located on the side of the second connecting part 31 away from the end plate 20, so as to snap into the socket snap-fit ​​end 302.

[0067] The snap-fit ​​connection between the socket snap-fit ​​hole 3021 and the socket snap-fit ​​end 302 in this application provides additional mechanical locking, ensuring stable fixation between the wire harness socket 30 and the second connection part 31. This connection method can effectively prevent the wire harness socket from loosening or dislodging when the vehicle is in motion or subjected to impact or vibration, and maintain the continuity and reliability of the electrical connection.

[0068] Furthermore, the stable snap-fit ​​structure of the wiring harness socket 30 in this application helps reduce contact resistance, ensures efficient transmission of current and signals, thereby optimizing the electrical performance of the battery device and improving the overall efficiency and response speed of the system.

[0069] like Figure 3 As shown, the end plate 20 is provided with a weight-reducing hollow section 22.

[0070] Preferably, a weight-reducing hollow portion 22 is provided in the non-load-bearing or low-stress area of ​​the end plate 20, which can significantly reduce the amount of material used, thereby reducing the weight of the end plate 20. In addition, the design of the weight-reducing hollow portion 22 increases the contact area between the surface of the end plate 20 and the surrounding environment, which is conducive to the air circulation in the weight-reducing hollow portion 22 and improves the heat dissipation performance of the battery module.

[0071] like Figure 3As shown, the end plate 20 is provided with a mounting through hole 23, which extends through both ends of the end plate 20 in a preset direction. The weight reduction hollow part 22 includes a weight reduction hole 221, which is located in the middle of the mounting through hole 23 and communicates with the mounting through hole 23.

[0072] This application achieves more effective weight reduction by providing a weight-reducing hole 221 in the middle of the mounting through hole 23, which further reduces the amount of material used in the end plate 20. This design reduces the overall weight of the end plate 20 by removing material from non-load-bearing areas while ensuring the structural integrity and connection strength of the through hole.

[0073] Specifically, the battery device also includes a reinforcing member 40, which is disposed at the weight reduction hole 221 and connected to the weight reduction edge of the weight reduction hole 221.

[0074] In this application, the reinforcing member 40 is connected to the weight-reducing edge of the weight-reducing hole 221, which locally strengthens the key area around the weight-reducing hole 221, effectively disperses stress concentration, improves the tensile and bending resistance of the end plate 20 in this area, and ensures that the end plate 20 can maintain the integrity and stability of the structure even under extreme working conditions.

[0075] Furthermore, the addition of the reinforcing member 40 helps to optimize the stress distribution of the end plate 20, making it more balanced. When the battery module is subjected to external impact, the reinforcing member 40 can absorb and disperse some of the stress, preventing excessive stress concentration at the edge of the weight reduction hole 221, thereby reducing the risk of end plate 20 breakage and improving the safety of the overall structure.

[0076] Preferably, at least two weight-reducing holes 221 are provided on the mounting through hole 23, and the at least two weight-reducing holes 221 are provided at intervals along the periphery of the mounting through hole 23. There are at least two reinforcing members 40, and at least one reinforcing member 40 is provided in each mounting through hole 23. The reinforcing member 40 at one weight-reducing hole 221 and the reinforcing member 40 at another weight-reducing hole 221 are staggered along a preset direction.

[0077] In this application, the reinforcing members 40 are staggered along a preset direction, which helps to evenly distribute the force applied to the end plate 20, avoid stress concentration at a certain point or area, thereby optimizing the stress distribution of the entire end plate 20 and reducing the risk of damage caused by excessive stress concentration.

[0078] In addition, each weight-reducing hole 221 is provided with a reinforcing member 40. This multi-point distribution of reinforcing members not only locally enhances the structural strength around the weight-reducing hole 221, but also improves the overall deformation resistance of the end plate 20. This layout ensures that the end plate 20 can maintain its shape and functional integrity even when subjected to large loads or impacts.

[0079] Preferably, the side of the reinforcing member 40 near the mounting through hole 23 is an arc surface that matches the inner wall of the mounting through hole 23.

[0080] The arc surface of the reinforcing member 40 near the mounting through hole 23 is adapted to the inner wall of the mounting through hole. This design increases the contact area, improves the structural strength of the connection point, and also helps to distribute stress evenly and reduce stress concentration, thereby increasing the bending and torsional resistance of the end plate 20.

[0081] Preferably, the mounting through hole 23 is located on the side of the end plate 20; and / or, there are at least two mounting through holes 23.

[0082] This application places the mounting through-hole 23 on the side of the end plate 20, which avoids excessive material consumption in the core load-bearing area. At the same time, by setting at least two mounting through-holes 23, the weight distribution is balanced, which helps to achieve the overall lightweight design and compact structure of the battery device.

[0083] like Figure 3 As shown, the end plate 20 includes a main body 24 and a mounting part 25 connected to each other. The mounting part 25 is provided with a mounting through hole 23. The battery device also includes a reinforcing rib 26. The end of the reinforcing rib 26 is connected to the part of the mounting part 25 that is provided with a weight reduction hole 221. The reinforcing rib 26 is attached to the main body 24.

[0084] In this application, the end of the reinforcing rib 26 is connected to the part of the mounting part 25 where the weight reduction hole 221 is provided, which enhances the structural stability of the area. At the same time, the reinforcing rib is attached to the main body 24, forming a three-dimensional reinforcing structure on the entire end plate 20, which further improves the compressive strength and overall rigidity of the end plate 20.

[0085] Furthermore, the reinforcing member 40 and reinforcing rib 26 in this application not only enhance the structure, but may also serve as a heat conduction path, helping to dissipate heat quickly inside the battery device, optimizing the battery's thermal management, maintaining the battery within a suitable operating temperature range, and improving the battery's performance and lifespan.

[0086] Specifically, a weight-reducing groove 27 is provided on one side of the end plate 20. The end plate 20 also includes a main reinforcing rib 28, which is installed on the weight-reducing groove 27 and connected to the groove wall of the weight-reducing groove 27. The main reinforcing rib 28 surrounds the weight-reducing groove 27 to form a first mounting groove 271 and a second mounting groove 272. The first mounting groove 271 is arranged around the periphery of the second mounting groove 272.

[0087] By providing weight-reducing grooves 27 on the end plate 20, the weight of the end plate 20 is significantly reduced, which is crucial for the lightweight design of the battery device. Lightweighting helps improve the energy efficiency ratio and range of electric vehicles, while reducing the burden on the installation structure.

[0088] Specifically, the end plate 20 also includes a lifting part 29, which is disposed in the first mounting groove 271.

[0089] The hoisting part 29 is set in the first mounting slot 271, which not only provides a safe and reliable anchor point for hoisting the battery device, but may also serve as a positioning reference during the assembly process, simplifying the assembly process and improving work efficiency and assembly accuracy.

[0090] Specifically, the end plate 20 also includes a first reinforcing rib 210, which is disposed in the second mounting groove 272 and connected to the groove wall of the second mounting groove 272. The first reinforcing rib 210, the hoisting part 29 and the main reinforcing rib 28 have at least one connection point.

[0091] In this application, the main reinforcing rib 28 not only provides support on the weight-reducing groove 27, but also forms the first mounting groove 271 and the second mounting groove 272, while the first reinforcing rib 210 further reinforces the second mounting groove 272. This multi-layered reinforcing rib design can not only disperse and optimize stress distribution and effectively prevent structural deformation, but also ensure the structural strength and stability of the end plate while reducing weight.

[0092] Preferably, there are two lifting parts 29, which are located on both sides of the second mounting groove 272; and / or, there are at least two first reinforcing ribs 210, which are all disposed in the second mounting groove 272 and are connected at a preset angle.

[0093] By setting two lifting parts 29, which are located on both sides of the second mounting groove 272, this application can provide a more balanced lifting point, enhance the stability during the lifting process, thereby improving the safety of the lifting and reducing the risk of damage to the battery device during the lifting. In addition, the design of the two lifting parts 29 not only provides additional support points during the lifting, but also serves as a positioning reference during the assembly process, simplifying the assembly process and improving assembly efficiency and accuracy.

[0094] In this application, at least two first reinforcing ribs 210 are connected and set at a preset angle in the second mounting groove 272, which can form a three-dimensional stable structure, effectively disperse the force applied to the end plate 20, optimize the stress distribution, avoid stress concentration, and thus enhance the structural stability and deformation resistance of the end plate 20.

[0095] Specifically, the 28 main reinforcing ribs form a grid structure, the first mounting groove 271 includes multiple weight-reducing grooves connected sequentially from end to end along the periphery of the second mounting groove 272, the lifting part 29 is a lifting ring, the outer edge of the lifting ring is connected to the main reinforcing ribs 28, a part of the lifting ring is located in one of the first mounting grooves 271, and the other part of the lifting ring is located in an adjacent first mounting groove 271.

[0096] The grid structure formed by the main reinforcing ribs 28 can provide multi-point support and effectively distribute the load acting on the end plate 20, thereby greatly enhancing the structural strength of the end plate 20. At the same time, by setting the first mounting groove 271 in the non-load-bearing area, the goal of lightweighting is achieved. This balance ensures the stability and safety of the battery device while also improving its energy efficiency and range. The lifting ring, as the lifting part 29, is connected to the main reinforcing ribs 28 at its outer edge, and part of it is located in one first mounting groove 271, while the other part is located in an adjacent first mounting groove 271, ensuring the uniform distribution of force during lifting and improving the safety and efficiency of the lifting operation.

[0097] Specifically, the battery device also includes a second reinforcing rib 212. One end of the second reinforcing rib 212 is connected to the outer ring of the hoisting part 29, and the other end of the second reinforcing rib 212 is connected to the inner wall of the first mounting groove 271. The first reinforcing rib 210 and the second reinforcing rib 212 are set at a preset angle.

[0098] In this application, the first reinforcing rib 210 and the second reinforcing rib 212 are set at a preset angle to form a mutually supporting network, which can more effectively disperse stress and avoid excessive stress concentration at a certain point. This is crucial for improving the durability and impact resistance of the battery device during transportation and installation.

[0099] Specifically, the end plate 20 is provided with a limiting groove 211 adapted to the fixing strap, so that at least part of the fixing strap is fitted into the limiting groove 211; and / or, the side of the end plate 20 near the battery 10 is a plane.

[0100] A limiting groove 211 adapted to the fixing strap is provided on the end plate 20, so that at least part of the fixing strap can be firmly embedded in the limiting groove 211, ensuring the stable position of the fixing strap in the battery module, effectively preventing the strap from shifting under vibration or impact, and improving the structural stability and safety of the battery module.

[0101] The planarization of the end plate 20 in this application, especially the design of its side facing the battery as a flat surface, helps to achieve a tighter and flatter fit between the components of the battery module, optimizes the spatial layout, and improves the compactness of the module.

[0102] Another embodiment of this application provides an energy storage system, including a battery management system and a battery device, wherein the battery device is the aforementioned battery device, and the battery management system is used to monitor and manage the charging, discharging and temperature of the battery device.

[0103] The energy storage system of this application achieves comprehensive monitoring of the battery device by integrating an advanced battery management system (BMS), including real-time tracking of charging and discharging status and temperature changes. Based on this data, the BMS can accurately control the charging and discharging process to avoid overheating or overcooling of the battery, as well as overcharging and over-discharging, thereby significantly extending battery life and improving overall energy storage efficiency.

[0104] Another embodiment of this application provides an electrical device including a battery device, which is the battery device described above. A management interface is provided between the electrical device and the battery device, and the management interface adjusts the power consumption of the battery device according to the charging status and remaining power of the battery device.

[0105] This application dynamically adjusts the power consumption of the battery device through a management interface, and the device can intelligently adjust its energy consumption based on the real-time charging status and remaining power of the battery device. When the battery is fully charged, the device can operate in high-performance mode to make full use of energy; when the battery is low, the device automatically switches to energy-saving mode to extend the usage time, thereby achieving the best balance between device performance and energy efficiency.

[0106] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0107] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0108] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0109] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0110] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0111] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0112] In the accompanying drawings corresponding to the embodiments of this application, the thickness and area of ​​the layers are enlarged for better understanding and ease of description. When describing a component (such as a layer, film, region, or substrate) on or on the surface of another component, the component may be "directly" located on the surface of the other component, or there may be a third component between the two components. Conversely, when describing a component on the surface of another component, or when another component is formed or disposed on the surface of a component, it indicates that there is no third component between the two components. Furthermore, when describing a component as being "generally" formed on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor is it formed on a portion of the edge of the entire surface.

[0113] In the description of the embodiments of this application, when a component "includes" another component, other components are not excluded unless otherwise stated, and other components may be further included. Furthermore, when a component such as a layer, film, region, or plate is referred to as being "on / located" on another component, it can be "directly on" the other component (i.e., located on the surface of the other component with no other components between them), or another component may be present therein. Moreover, when a component such as a layer, film, region, or plate is "directly located" on another component, or when a component such as a layer, film, region, or plate is located on the surface of another component, it indicates that no other components are located therein.

[0114] The terminology used in the description of the various embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various embodiments and the appended claims, the term "part" is also intended to include the plural form unless the context clearly indicates otherwise. Components include layers, films, regions, or plates, etc.

[0115] The embodiments of this application will now be described in detail with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0116] Those skilled in the art will understand that the above embodiments are specific examples of implementing this application, and in practical applications, various changes in form and detail can be made without departing from the spirit and scope of this application. Any person skilled in the art can make various alterations and modifications without departing from the spirit and scope of this application; therefore, the scope of protection of this application should be determined by the scope defined in the claims.

Claims

1. A battery device, characterized in that, include: A battery (10) and an end plate (20), wherein the end plate (20) is disposed at the end of the battery (10) and a first connecting portion (21) is provided on the end plate (20). A wire harness socket (30) is provided with a second connecting part (31). The second connecting part (31) is detachably connected to the first connecting part (21). When the first connecting part (21) is connected to the second connecting part (31), the wire harness socket (30) abuts against the end plate (20) so that the wire harness socket (30) is supported on the end plate (20) so that the heat generated by the wire harness socket (30) is conducted to the end plate (20) and then dissipated through the heat dissipation path of the end plate (20). The end plate (20) is provided with a weight-reducing hollow part (22); The end plate (20) is also provided with a mounting through hole (23), which penetrates both ends of the end plate (20) in a preset direction. The weight-reducing hollow part (22) includes a weight-reducing hole (221), which is located in the middle of the mounting through hole (23) and communicates with the mounting through hole (23). A reinforcing member (40) is provided at the weight reduction hole (221) and is connected to the weight reduction edge of the weight reduction hole (221); At least two weight-reducing holes (221) are provided on the mounting through hole (23). The at least two weight-reducing holes (221) are spaced apart along the periphery of the mounting through hole (23). There are at least two reinforcing members (40). At least one reinforcing member (40) is provided in each mounting through hole (23). The reinforcing member (40) at one weight-reducing hole (221) and the reinforcing member (40) at another weight-reducing hole (221) are staggered along the preset direction. The wiring harness socket (30) includes a plug connection end (301) and a socket snap-fit ​​end (302) arranged sequentially in a vertical direction. The plug connection end (301) has a first connection port (3011) facing the battery monitoring component to connect the wiring harness in the wiring harness socket (30) to the battery monitoring component. The vertical direction is the extension direction perpendicular to the end plate (20). The socket snap-fit ​​end (302) snaps into the second connecting part (31), and the second connecting part (31) is provided with a socket snap-fit ​​hole (3021), wherein the socket snap-fit ​​hole (3021) is located on the side of the second connecting part (31) away from the end plate (20) to snap into the socket snap-fit ​​end (302).

2. The battery device according to claim 1, characterized in that, One of the first connecting part (21) and the second connecting part (31) is a snap-fit ​​hole, and the other of the first connecting part (21) and the second connecting part (31) is a snap-fit ​​protrusion.

3. The battery device according to claim 2, characterized in that, The snap-fit ​​protrusion includes a snap-fit ​​body (311) and a first snap-fit ​​arm (312) and a second snap-fit ​​arm (313) spaced apart on the snap-fit ​​body (311). At least one of the first snap-fit ​​arm (312) and the second snap-fit ​​arm (313) is provided with an abutment portion (314) so ​​that when the first snap-fit ​​arm (312) and the second snap-fit ​​arm (313) are snapped into the snap-fit ​​hole, the abutment portion (314) abuts against the edge of the snap-fit ​​hole.

4. The battery device according to claim 2, characterized in that, The snap-fit ​​hole is located at the end of the end plate (20), and at least a portion of the wire harness socket (30) extends out of the end plate (20) on the side away from the battery (10).

5. The battery device according to claim 1, characterized in that, The side of the reinforcing member (40) near the mounting through hole (23) is an arc surface adapted to the inner wall of the mounting through hole (23); and / or, The mounting through hole (23) is located on the side of the end plate (20); and / or, The mounting through holes (23) are at least two; and / or, The end plate (20) includes a main body (24) and a mounting part (25) connected to each other. The mounting part (25) is provided with the mounting through hole (23). The battery device also includes a reinforcing rib (26). The end of the reinforcing rib (26) is connected to the part of the mounting part (25) provided with the weight reduction hole (221). The reinforcing rib (26) is attached to the main body (24).

6. The battery device according to claim 1, characterized in that, The end plate (20) has a weight-reducing groove (27) on one side, and the end plate (20) also includes: The main reinforcing rib (28) is installed on the weight-reducing groove (27) and connected to the groove wall of the weight-reducing groove (27). The main reinforcing rib (28) surrounds the weight-reducing groove (27) to form a first mounting groove (271) and a second mounting groove (272). The first mounting groove (271) is arranged around the periphery of the second mounting groove (272). The hoisting part (29) is set in the first mounting slot (271); The first reinforcing rib (210) is disposed in the second mounting groove (272) and connected to the groove wall of the second mounting groove (272). The first reinforcing rib (210), the hoisting part (29) and the main reinforcing rib (28) have at least one connection point.

7. The battery device according to claim 6, characterized in that, There are two lifting parts (29), and the two lifting parts (29) are respectively located on both sides of the second mounting groove (272); and / or, There are at least two first reinforcing ribs (210), and at least two first reinforcing ribs (210) are disposed in the second mounting groove (272), and at least two first reinforcing ribs (210) are connected at a preset angle.

8. The battery device according to claim 6, characterized in that, The main reinforcing ribs (28) form a grid structure. The first mounting groove (271) includes multiple weight-reducing grooves connected sequentially from end to end along the periphery of the second mounting groove (272). The lifting part (29) is a lifting ring. The outer edge of the lifting ring is connected to the main reinforcing ribs (28). A portion of the lifting ring is located in one of the first mounting grooves (271), and another portion of the lifting ring is located in an adjacent first mounting groove (271); and / or, The battery device also includes a second reinforcing rib (212), one end of which is connected to the outer ring of the hoisting part (29), and the other end of which is connected to the inner wall of the first mounting groove (271). The first reinforcing rib (210) and the second reinforcing rib (212) are set at a preset angle.

9. The battery device according to any one of claims 1 to 8, characterized in that, The end plate (20) is provided with a limiting groove (211) adapted to the fixing strap, so that at least a portion of the fixing strap is fitted into the limiting groove (211); and / or, The side of the end plate (20) closest to the battery (10) is flat.

10. An energy storage system, characterized in that, The device includes a battery management system and a battery device, wherein the battery device is the battery device according to any one of claims 1 to 9, and the battery management system is used to monitor and manage the charging and discharging status and temperature of the battery device.

11. An electrical appliance, characterized in that, The device includes a battery device, which is the battery device according to any one of claims 1 to 9. A management interface is provided between the electrical device and the battery device, and the management interface adjusts the power consumption of the battery device according to the charging state and remaining power of the battery device.

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