High-voltage battery structure convenient to assemble

Abstract

The utility model provides a high-voltage battery structure convenient to assemble, and aims to effectively reduce the cost of manual operation, improve the production efficiency and reduce the risks of installation and maintenance. The high-voltage battery structure comprises a box body frame, and a first surrounding cover plate, a second surrounding cover plate and an upper cover which are fixed on the box body frame, hollow structures are arranged on the front, back, left, right and upper parts of the box body frame, and laminate assemblies for dividing the internal space of the box body frame into an upper part and a lower part are arranged on the box body frame; module fixing plates are arranged on the upper portion, the lower portion, the front side and the rear side of the box frame, an electrical integrated board and a plurality of high-voltage battery modules fixed to the module fixing plates are arranged in the box frame, and the high-voltage battery modules are installed in the box frame one by one in all directions and are in electric signal connection with the electrical integrated board. The utility model relates to the technical field of lithium batteries.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a high-voltage battery structure convenient for assembly. Background Art

[0002] At present, the battery structures applied in the market are complex and difficult to assemble. A battery requires multiple battery cells to be connected in series to form a module, and the battery size is limited by the size of the vehicle body. When installing, the weight of the battery module is too large, resulting in increased difficulty in installing it into the vehicle body. In addition, when a high-voltage battery fails, it is often necessary to drive the vehicle body to a specific workshop, lift out the entire battery and replace it, which greatly increases the maintenance cost and operation difficulty.

[0003] At present, some enterprises have also made improvements in this regard. For example, Chinese invention with the publication number CN110660939A discloses a new type of high-voltage lithium-ion battery with high performance and large capacity. Through the design of a heat dissipation fan group and spring connection, the heat dissipation performance and battery group stability are effectively improved. However, to meet the installation requirements of being convenient for assembly and maintenance, especially for the battery installed in the vehicle body, this solution still needs to be further optimized.

[0004] Therefore, it is very necessary to develop a high-voltage battery structure convenient for assembly, which can not only greatly reduce the cost of manual operation, improve efficiency and reduce risks when installing the battery, but also enable the replacement of a failed module in the vehicle body without removing the entire battery during maintenance and replacement, effectively ensuring the maintenance efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-voltage battery structure convenient for assembly. Aiming at the existing technical deficiencies, this high-voltage battery structure can divide the high-voltage battery into multiple lightweight modules, which is convenient for installation or disassembly from any surface. All electrical components are pre-installed in advance and highly integrated, featuring convenient installation and high space utilization rate. Therefore, it can effectively reduce the cost of manual operation, improve the production efficiency, and reduce the risks of installation and maintenance.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a high-voltage battery structure convenient for assembly, which includes a box frame, a first surrounding cover plate, a second surrounding cover plate and an upper cover fixed on the box frame. The front, back, left, right and upper parts of the box frame are set as hollow structures and are provided with a layer plate assembly that divides its internal space into upper and lower parts. Module fixing plates are arranged at the upper and lower parts of the box frame and on the front and back sides. An electrical integration board and a number of high-voltage battery modules fixed on the module fixing plates are arranged inside the box frame. The number of high-voltage battery modules are individually installed in the box frame from the hollow parts and are electrically connected to the electrical integration board.

[0007] Based on the above, the high-voltage battery structure that is convenient for assembly enables the assembly of the battery pack to be more flexible and efficient through modular design. At the same time, the layered layout optimizes the space utilization rate and heat dissipation performance. The application of the electrical integration board simplifies the circuit layout and improves the electrical performance and reliability. The standardized design makes the assembly process simple and fast, reduces the assembly difficulty and cost, and improves the interchangeability and universality of the product. Overall, this structure not only improves the performance, reliability and safety of the battery pack, but also significantly reduces the production cost and maintenance difficulty, providing an efficient and safe solution for the quick installation, maintenance and replacement of high-voltage battery technology.

[0008] Further, the laminated board assembly includes vertical fixing beams, horizontal fixing beams and supporting partitions. The vertical fixing beams are arranged on the left and right sides inside the box frame. The horizontal fixing beams are fixedly connected to the vertical fixing beams on both sides. The supporting partitions are arranged on the horizontal fixing beams.

[0009] Based on the above, the use of a further refined laminated board assembly design, that is, a laminated board assembly including vertical fixing beams, horizontal fixing beams and supporting partitions, further enhances the stability and reliability of the high-voltage battery structure. The vertical fixing beams ensure the stability of the left and right sides of the box frame, while the horizontal fixing beams provide horizontal support by being fixedly connected to the vertical fixing beams. The setting of the supporting partitions not only effectively separates the upper and lower parts of the box frame space, but also increases the isolation degree between the battery modules, improving the safety of the entire battery system. This design enables the high-voltage battery structure to have higher structural strength and safety while maintaining high efficiency, providing a strong guarantee for the stable and safe operation of high-voltage batteries in various application environments.

[0010] Further, the high-voltage battery module is composed of a plurality of battery cells connected in series by laser-welding aluminum sheets. The battery cells are fixed into one body by setting fixed end plates on both sides and being fixed by cable ties. A plurality of the high-voltage battery modules are fixed on the module fixing plate through the fixed end plates.

[0011] Based on the above, adopting this further refined high-voltage battery module design, that is, connecting several battery cells in series to form a high-voltage battery module by laser-welding aluminum sheets, and fixing them with a fixed end plate and cable ties, brings significant beneficial effects to the high-voltage battery structure. First, the use of laser-welding aluminum sheets ensures the stable connection between battery cells, improving the structural strength and reliability of the battery module. Second, the addition of the fixed end plate not only enhances the overall stability of the module, but also makes the connection between the module and the module fixing plate more firm, reducing the displacement risk of the module under vibration or impact. Finally, through the fixation of cable ties, the tightness between the battery cells inside the module is further strengthened, preventing the loosening or displacement of the battery cells during use. This design not only improves the safety and reliability of the high-voltage battery module, but also optimizes the assembly process and improves production efficiency, providing a strong guarantee for the stable and safe operation of high-voltage batteries in various application environments.

[0012] Furthermore, the electrical integration board is located in the upper half of the box frame and fixed on the support partition. A vehicle-end controller is also provided at the position of the upper cover opposite to the electrical integration board. The vehicle-end controller includes a circular meter, an antenna, a switch, a communication port, a circuit breaker, a first discharge interface, a second discharge interface, a third discharge interface, a first charging interface, and a second charging interface. The vehicle-end controller is electrically connected to the electrical integration board.

[0013] Based on the above, the electrical integration board is located in the upper half of the box frame and fixed on the support partition. This layout not only optimizes the spatial configuration of electrical components, but also improves the integration and reliability of the battery system. The setting of the vehicle-end controller further enhances the functionality and intelligent level of the battery system. The circular meter provides an intuitive display of power and status, the antenna ensures stable communication with external devices, the switch and circuit breaker provide safe control functions, and the communication port as well as multiple discharge interfaces and charging interfaces enrich the interface options of the battery system, meeting diverse usage requirements. Overall, this design not only improves the safety and reliability of the battery system, but also enhances its functionality and user-friendliness, providing strong support for the efficient, stable, and safe use of high-voltage batteries in various application scenarios.

[0014] Furthermore, lifting rings passing through the upper cover are also provided around the upper part of the box frame.

[0015] Based on the above, the addition of the lifting rings has greatly facilitated the handling and installation process of the high-voltage battery structure, enabling the entire battery system to be easily operated by lifting equipment, thereby improving work efficiency. At the same time, the design of the lifting rings also ensures stability and safety during handling and installation, reducing the risk of damage caused by improper operation. This innovative design not only optimizes the overall performance of the high-voltage battery structure but also enhances its convenience and reliability in practical applications, providing users with a more efficient and safe usage experience.

[0016] To more clearly elaborate on the above features of the present utility model and the objectives to be achieved, the following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0017] Figure 1 : is a schematic structural diagram of the present utility model;

[0018] Figure 2 : is an exploded schematic diagram of the laminate assembly 8;

[0019] Figure 3 : is a schematic structural diagram of the laminate assembly 8;

[0020] Figure 4 : is a schematic structural diagram of the high-voltage battery module 5;

[0021] Figure 5 : is a schematic structural diagram of the vehicle-end controller 7.

[0022] Explanation of the reference numerals in the drawings: 1 - box frame; 11 - lifting ring; 12 - vertical fixing beam; 13 - horizontal fixing beam; 14 - support partition; 15 - module fixing plate; 2 - first enclosing cover plate; 3 - second enclosing cover plate; 4 - upper cover; 41 - circular meter; 42 - antenna; 43 - switch; 44 - communication port; 45 - circuit breaker; C1 - first charging port; C2 - second charging port; F1 - first discharge port; F2 - second discharge port; F3 - third discharge port; 5 - high-voltage battery module; 51 - battery cell; 52 - fixed end plate; 53 - tie strap; 54 - aluminum sheet; 6 - electrical integration board; 7 - vehicle-end controller; 8 - laminate assembly. Detailed Description of the Embodiments

[0023] As Figures 1 to 5As shown in the figure, a high-voltage battery structure that is convenient for assembly includes a box body frame 1, a first surrounding cover plate 2, a second surrounding cover plate 3, and an upper cover 4 fixed on the box body frame 1. The front, back, left, right, and upper parts of the box body frame 1 are provided with a hollow structure and a laminate assembly 8 that divides its internal space into upper and lower parts. Module fixing plates 15 are provided at the upper and lower parts of the box body frame 1 and on the front and rear sides. An electrical integration board 6 and a number of high-voltage battery modules 5 fixed on the module fixing plates 15 are arranged inside the box body frame 1. The number of high-voltage battery modules 5 is installed one by one in the box body frame 1 from all directions and is electrically connected to the electrical integration board 6. The laminate assembly 8 includes vertical fixing beams 12, horizontal fixing beams 13, and support partitions 14. The vertical fixing beams 12 are arranged on the left and right sides inside the box body frame 1. The horizontal fixing beams 13 are fixedly connected to the vertical fixing beams 12. The support partitions 14 are arranged on the horizontal fixing beams 13. The high-voltage battery module 5 is composed of a number of battery cells 51 connected in series by laser-welding aluminum sheets 54. The battery cells 51 are fixed into one body by adding fixing end plates 52 on both sides and being fixed by cable ties 53. The number of high-voltage battery modules 5 is fixed on the module fixing plates 15 through the fixing end plates 52. The electrical integration board 6 is located in the upper half of the box body frame 1 and is fixed on the support partition 14. A vehicle-end controller 7 is also provided at the position of the upper cover 4 facing the electrical integration board 6. The vehicle-end controller 7 includes a circular meter 41, an antenna 42, a switch 43, a communication port 44, a circuit breaker 45, a first discharge interface F1, a second discharge interface F2, a third discharge interface F3, a first charging interface C1, and a second charging interface C2. Suspension rings 11 passing through the upper cover 4 are also arranged around the upper part of the box body frame 1.

[0024] The specific usage method of the present utility model is as follows:

[0025] First, a number of battery cells 51 are connected in series, and fixing end plates 52 are provided at both ends, and they are bundled into an integrated structure by cable ties 53. A number of aluminum sheets 54 are fixed to the electrodes of the battery cells 51 by laser welding with their heads and tails connected; when installing the laminate assembly 8, use screws to sequentially fix and lock the vertical fixing beams 12, horizontal fixing beams 13, and support partitions 14, and install the module fixing plates 15 according to the positions of the high-voltage battery modules 5; pre-install electrical components on the electrical integration board 6 in advance, and install the electrical integration board 6 on the support partition 14; place the box body frame 1 in the vehicle body or the place where it needs to be installed through the suspension rings 11, then remove the suspension rings 11 and the upper cover 4, and install a number of high-voltage battery modules 5 through the hollow structure of the box body frame 1. In this embodiment, 3 and 4 high-voltage battery modules 5 are installed in the spaces above and below the support partition 14 respectively, and the fixing end plates 52 and the module fixing plates 15 are fixed by screws; finally, install the first surrounding cover plate 2, the second surrounding cover plate 3, and the upper cover 4.

[0026] During maintenance, drive the work vehicle to the maintenance position, remove the first enclosure cover 2, the second enclosure cover 3 and the upper cover 4, use an electric meter or other detection tools to check the failed high-voltage battery module 5, use maintenance tools to remove it and replace it with a new high-voltage battery module 5, reconnect the power cord, and finally reinstall the first enclosure cover 2, the second enclosure cover 3 and the upper cover 4 after detecting that the battery can work properly.

[0027] The above are only the optimal solution embodiments of the present invention, which are not used to limit the present invention. Various modifications or substitutions made by those skilled in the art to the present invention without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A high-voltage battery structure that is easy to assemble, comprising a box frame (1) and a first surrounding cover plate (2), a second surrounding cover plate (3) and an upper cover (4) fixed to the box frame (1), characterized in that: The front, back, left, right and top of the box frame (1) are arranged as a hollow structure and are provided with a layer plate assembly (8) that divides the internal space thereof into upper and lower parts. The upper and lower parts of the box frame (1) and the front and rear sides are provided with module fixing plates (15). The box frame (1) is provided with an electrical integrated board (6) and a plurality of high-voltage battery modules (5) fixed on the module fixing plate (15). The plurality of high-voltage battery modules (5) are installed one by one in the box frame (1) from the hollow parts and are connected to the electrical integrated board (6) by electrical signals.

2. The high-voltage battery structure that is easy to assemble according to claim 1, characterized in that: The layer plate assembly (8) comprises a vertical fixed beam (12), a transverse fixed beam (13) and a supporting partition (14); the vertical fixed beam (12) is arranged on the left and right sides of the box frame (1); the transverse fixed beam (13) is fixedly connected to the vertical fixed beams (12) on both sides; and the supporting partition (14) is arranged on the transverse fixed beam (13).

3. The high-voltage battery structure that is easy to assemble according to claim 1, characterized in that: The high-voltage battery module (5) is composed of a plurality of battery cells (51) connected in series by laser welding aluminum sheets (54); the battery cells (51) are fixed as a whole by fixed end plates (52) arranged on both sides and fixed by tie bands (53); and the plurality of high-voltage battery modules (5) are fixed to the module fixing plate (15) by means of the fixed end plates (52).

4. The high-voltage battery structure that is easy to assemble according to claim 2 is characterized in that: The electrical integrated board (6) is located in the upper part of the box frame (1) and is fixed on the supporting partition (14). A vehicle-end controller (7) is also arranged at a position of the upper cover (4) facing the electrical integrated board (6). The vehicle-end controller (7) comprises a round meter (41), an antenna (42), a switch (43), a communication port (44), a circuit breaker (45), a first discharge interface (F1), a second discharge interface (F2), a third discharge interface (F3), a first charging interface (C1) and a second charging interface (C2). The vehicle-end controller (7) is connected to the electrical integrated board (6) by electrical signals.

5. The high-voltage battery structure that is easy to assemble according to claim 1 is characterized in that: Hanging rings (11) passing through the upper cover (4) are also arranged around the upper side of the box frame (1).

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