A high strength, easily maintained energy storage battery pack device

Abstract

The utility model discloses a kind of high-strength, easily maintained energy storage battery pack devices, including front panel, box body assembly, insulating protective layer and box cover, the box body assembly is equipped with multiple module combinations, module combination top is fixed by compression beam component, the compression beam component is composed of nut, long screw rod, limit post, compression beam, compression beam is located in the length direction of module, compression beam head end is fixed by long screw rod;The utility model passes through the steel locking module Z direction displacement of compression beam component, long screw rod penetrates compression beam and the upper and lower fixed beam of box, is constrained X direction, Y direction expansion by the mechanical engagement of end plate and box recess, realize high-strength energy storage device efficient, fast assembly, ensure energy storage capacity, simplify production technology, improve production efficiency, simultaneously provide convenience for subsequent module combination maintenance and replacement, save after-sales maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of energy equipment and power storage technology, specifically a high-strength, easy-to-maintain energy storage battery pack device. Background Technology

[0002] With increasing societal demands for green energy development, various energy storage devices are widely used in communication base stations, data center backup power supplies, UPS systems, residential energy storage, industrial and commercial energy storage, and large-scale energy storage projects. Among these, lithium batteries, with their high energy density and other advantages, are gradually replacing traditional lead-acid batteries as the mainstream choice, driving energy storage technology towards higher efficiency and greater efficiency. Under this trend, customers are placing higher demands on the core performance of energy storage devices, paying particular attention to key indicators such as footprint, energy density, and maintainability.

[0003] To meet the demands for small size and high energy density, existing energy storage devices typically enhance structural strength to ensure overall stability. The mainstream approach involves using structural adhesive to connect and fix the bottom of the battery module to the bottom of the chassis, forming a single integrated structure. While this approach improves structural strength to some extent, it has significant drawbacks:

[0004] On the one hand, the use of structural adhesive requires specialized adhesive application equipment, and the curing of the adhesive layer takes extra time, which directly increases the investment in production equipment and the production cycle, resulting in increased production costs and reduced production efficiency. On the other hand, the curing connection of structural adhesive makes the battery module and the chassis rigidly fixed, which makes the subsequent disassembly, inspection and replacement of the module extremely difficult, significantly increasing the workload and cost of the maintenance process, and making it difficult to meet the actual needs of energy storage devices for convenient maintenance.

[0005] Therefore, how to simplify the production process, improve production efficiency and reduce maintenance costs while ensuring the structural strength of energy storage devices has become a key issue that urgently needs to be addressed in the current energy storage technology field. Summary of the Invention

[0006] The purpose of this utility model is to provide a high-strength, easy-to-maintain energy storage battery pack device to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: A high-strength, easy-to-maintain energy storage battery pack device, including a front panel, a housing assembly, an insulating protective layer, and a housing cover. The housing assembly contains multiple module combinations, which are fixed above each other by a pressure beam assembly. The pressure beam assembly consists of a nut, a long screw, a limiting post, and a pressure beam. The pressure beam is located along the length of the module, and its ends are fixed by the long screw. The long screw passes through the pressure beam and the upper and lower fixing beams, and its ends are fixed by nuts. A limiting post is also provided at the top of the long screw, and the limiting post is located between the pressure beam and the upper fixing beam.

[0007] Preferably, the insulating protective layer is placed between the box cover and the module assembly.

[0008] Preferably, the housing assembly includes a housing, the two side walls of the housing are provided with grooves that match the length and width of the module, the grooves are provided with side insulating buffer sheets, and the bottom of the housing is provided with a bottom insulating buffer sheet.

[0009] Preferably, the box body is also provided with an upper fixed beam and a lower fixed beam, and handles are provided on the outside of the box body and at the connection between the box body and the front panel.

[0010] Preferably, the module assembly consists of multiple battery cells, with a buffer layer between the battery cells. High-strength end plates are provided at both ends of the module, and a buffer layer is provided at the contact point between the high-strength end plates and the battery cells. The module assembly is fixed by a binding strap, and a limit block is provided on the high-strength end plate.

[0011] Preferably, multiple module assemblies are connected by electrical connection components, and the module assemblies are separated by a buffer insulation layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves efficient and quick assembly of high-strength energy storage device by rigidly locking the Z-axis displacement of the module through the pressure beam assembly, the long screw passing through the pressure beam and the upper and lower fixed beams of the box body, constraining the X and Y-axis expansion through the mechanical engagement of the end plate and the groove of the box body, and the quick disassembly and assembly design of the modular connectors, ensuring energy storage capacity, simplifying the production process, improving production efficiency, and providing convenience for the maintenance and replacement of subsequent module combinations, thus saving after-sales maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is an exploded view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the module assembly structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the module assembly and the connection structure of the housing in this utility model;

[0017] Figure 5 This is a schematic diagram of the box assembly structure;

[0018] In the diagram, the components are: front panel-1, enclosure assembly-2, enclosure-21, side insulating buffer sheet-22, bottom insulating buffer sheet-23, handle-24, upper fixing beam-25, lower fixing beam-26, insulating protective layer-3, enclosure cover-4, module assembly-5, battery cell-51, inter-cell buffer layer-52, high-strength end plate-53, end plate buffer layer-54, restraint strap-55, limit block-56, pressure beam assembly-6, nut-61, long screw-62, limit post-63, pressure beam-64, electrical connection assembly-71, and buffer insulating layer-72. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 This utility model provides a technical solution: a high-strength, easy-to-maintain energy storage battery pack device, including a front panel 1, a housing assembly 2, an insulating protective layer 3 and a housing cover 4. The front panel 1 is pre-installed with electrical components such as a battery management system, circuit breakers / fuses, and power output terminals to ensure the safe and stable operation of the lithium battery product.

[0021] The housing assembly 2 contains multiple module combinations 5. An insulating protective layer 3 is placed between the housing cover 4 and the module combinations 5. The housing assembly 2 includes a housing 21. The two side walls of the housing 21 are provided with grooves that match the length and width of the modules. The grooves and the module assembly and contact areas are provided with side insulating buffer sheets 22. The bottom of the housing 21 is provided with a bottom insulating buffer sheet 23. After the module reaches the design size, it can be directly assembled into the preset groove. In addition to pre-limiting the module combination 5, the groove can also resist the expansion force generated by the module combination 5 during repeated use, effectively ensuring the structural strength of the module. The housing 21 is also provided with an upper fixing beam 25 and a lower fixing beam 26. Handles 24 are provided on the outside of the housing 21 and at the connection between the housing 21 and the front panel 1, which can facilitate the handling and installation of the device.

[0022] The module assembly 5 is composed of multiple battery cells 51 connected in series and parallel according to preset requirements. A buffer layer 52 is provided between the battery cells 51. High-strength end plates 53 are provided at both ends of the module. A buffer layer 54 is provided at the contact point between the high-strength end plate 53 and the battery cell. The module assembly 5 is fixed by a restraining strap 55. The restraining force of the restraining strap 55 compresses the module to a preset size. A limit block 56 is preset on the high-strength end plate 53 to facilitate the limiting of the restraining strap 55.

[0023] The module assembly 5 is fixed above by a pressure beam assembly 6, which consists of a nut 61, a long screw 62, a limiting post 63, and a pressure beam 64. The pressure beam 64 is located along the length of the module, and its ends are fixed by the long screw 62. The long screw 62 passes through the pressure beam 64 and the upper fixing beam 25 and lower fixing beam 26, and its ends are fixed by the nut 61. The top of the long screw 62 is also provided with a limiting post 63, which is located between the pressure beam 64 and the upper fixing beam 25. After the module assembly 5 is assembled into the groove of the housing 21, the pressure beam assembly 6 fixes the module assembly 5 to the housing 21, thereby limiting the Z-axis displacement of the module. The nut 61 can prevent the long screw from being too torqued and causing deformation of the bottom of the housing, and the limiting post 63 can effectively prevent the pressure beam 64 from bending and squeezing the battery cell 51.

[0024] Multiple module assemblies 5 are connected by electrical connection components 71, thereby connecting multiple module assemblies 5 into a whole, and further connecting module assemblies 5 and housing assembly 2 into a whole. Module assemblies 5 are separated by buffer insulation layers 72, which effectively prevents the connectors from directly squeezing the module assemblies 5 and improves the electrical safety of the energy storage device.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength, easy-to-maintain energy storage battery pack device, comprising a front panel (1), a housing assembly (2), an insulating protective layer (3), and a housing cover (4), characterized in that: The box assembly (2) is provided with multiple module combinations (5). The module combination (5) is fixed above by a pressure beam assembly (6). The pressure beam assembly (6) consists of a nut (61), a long screw (62), a limiting post (63), and a pressure beam (64). The pressure beam (64) is located in the length direction of the module. The beginning and end of the pressure beam (64) are fixed by the long screw (62). The long screw (62) passes through the pressure beam (64) and the upper fixed beam (25) and the lower fixed beam (26). The beginning and end are fixed by the nut (61). The top of the long screw (62) is also provided with a limiting post (63). The limiting post (63) is located between the pressure beam (64) and the upper fixed beam (25).

2. The high-strength, easy-to-maintain energy storage battery pack device according to claim 1, characterized in that: An insulating protective layer (3) is placed between the box cover (4) and the module assembly (5).

3. The high-strength, easy-to-maintain energy storage battery pack device according to claim 2, characterized in that: The housing assembly (2) includes a housing (21). The two side walls of the housing (21) are provided with grooves that match the length and width of the module. Side insulating buffer sheets (22) are provided in the grooves. Bottom insulating buffer sheets (23) are provided at the bottom of the housing (21).

4. The high-strength, easy-to-maintain energy storage battery pack device according to claim 3, characterized in that: The box (21) is also equipped with an upper fixed beam (25) and a lower fixed beam (26). Handles (24) are provided on the outside of the box (21) and at the connection between the box (21) and the front panel (1).

5. The high-strength, easy-to-maintain energy storage battery pack device according to claim 1, characterized in that: The module assembly (5) is composed of multiple battery cells (51). A buffer layer (52) is provided between the battery cells (51). High-strength end plates (53) are provided at both ends of the module. An end plate buffer layer (54) is provided at the contact point between the high-strength end plate (53) and the battery cell. The module assembly (5) is fixed by a binding strap (55). A limit block (56) is provided on the high-strength end plate (53).

6. The high-strength, easy-to-maintain energy storage battery pack device according to claim 5, characterized in that: Multiple module assemblies (5) are connected by electrical connection components (71), and the module assemblies (5) are separated by buffer insulation layers (72).

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