Modular battery energy storage device

Abstract

This invention provides a modular battery energy storage device. It includes a mounting frame, within which a battery pack is housed. A power connector is located above the mounting frame, and an electrical interface is located below it. A frame plate is mounted on the side of the mounting frame, and a positioning post is mounted above the frame plate. A limiting groove is provided within the frame plate, and a slider is slidably mounted within the limiting groove. In this invention, a quick-release mechanism between the frame plate and the groove plate on the side of the mounting frame enables precise docking and secure locking between modules, preventing positional shifts or loosening after assembly. Simultaneously, the adaptable design of the power connector and electrical interface ensures stable power transmission when the upper and lower modules are docked. Furthermore, module assembly is simple and efficient; during installation, simply inserting the modules automatically locks them, and during disassembly, simultaneously moving a lever releases the lock, allowing one group of modules to be dragged upwards to separate the two groups.

Description

Technical Field

[0001] This utility model relates to energy storage equipment, and in particular to a modular battery energy storage device, belonging to the field of new energy technology. Background Technology

[0002] Modular battery energy storage devices are a new type of energy storage system based on modular design. The core of the system consists of standardized battery modules, a battery management system (BMS), a power conversion system (PCS), and auxiliary control modules. It breaks down the energy storage unit into independent modules that can be combined as needed to form different capacity scales, enabling flexible storage and release of electrical energy.

[0003] Its key advantages lie in its convenient maintenance and flexible expansion capabilities. It can be adapted to the consumption of renewable energy sources such as wind power and photovoltaics, and can also meet the needs of grid peak shaving, emergency power supply and user-side energy storage. It effectively improves energy utilization efficiency and power supply stability, and is an important energy storage carrier for new power systems.

[0004] Traditional battery energy storage devices often lack docking and positioning mechanisms. When multiple sets of energy storage battery modules need to be connected, they often rely on long wires to connect the modules. This can easily lead to messy wiring when multiple battery modules need to be connected. Furthermore, in order to save space, multiple battery modules need to be stacked. However, when multiple battery modules are stacked, their placement angles may be off, and battery modules located at higher positions are prone to falling when they are hit.

[0005] To address this, a modular battery energy storage device is proposed. Utility Model Content

[0006] In view of this, the present invention provides a modular battery energy storage device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is implemented as follows: A modular battery energy storage device includes a mounting frame, a battery pack disposed within the mounting frame, a power transmission connector disposed above the mounting frame, an electrical interface disposed below the mounting frame, a frame plate disposed on the side of the mounting frame, a positioning post disposed above the frame plate, a limit groove disposed within the frame plate, a slider slidably disposed within the limit groove, an inclined locking block disposed above the slider, a lever disposed on the slider, a spring disposed within the limit groove, a slotted plate disposed on the side of the mounting frame, an L-shaped locking groove disposed within the slotted plate, a positioning groove disposed within the slotted plate, a connecting wire disposed above the mounting frame, and heat dissipation holes disposed within the mounting frame.

[0008] More preferably, one end of the spring is mounted on the inner wall of the limiting groove, and the other end of the spring is mounted on the slider, and the spring drives the slider to tend to move closer to the positioning post.

[0009] More preferably, the positioning post is adapted to the positioning groove, and the power supply connector is adapted to the electrical interface.

[0010] More preferably, the battery pack is electrically connected to the power transmission connector and the electrical interface, respectively.

[0011] More preferably, the L-shaped slot is adapted to the inclined card block.

[0012] More preferably, the groove plate is located below the frame plate, and the positioning groove and the positioning post are located on the same central axis.

[0013] More preferably, heat dissipation fins are connected above the mounting frame, and a heat dissipation fan is provided on the mounting frame.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] I. In this utility model, the quick-release mechanism between the side frame plate and the groove plate of the mounting frame can achieve precise docking and stable locking between modules, preventing positional shift or loosening after splicing; at the same time, the matching design of the power supply connector and the electrical interface ensures stable power transmission when the upper and lower modules are docked, and the module assembly operation is simple and efficient. During installation, it can be automatically locked by simply inserting the modules together, and during disassembly, it can be unlocked by simply moving the lever at the same time, thereby dragging one set of modules upward to separate the two sets of modules.

[0016] Second, in this utility model, by setting a combination structure of heat dissipation fins and heat dissipation fan above the mounting frame, the heat dissipation of the connection part of the two modules can be ensured after the two modules are connected, effectively avoiding the performance degradation of the battery pack caused by the accumulation of heat that cannot be dissipated, and ensuring the overall energy efficiency of the energy storage device.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 3 In this utility model Figure 2 Partial structural diagram;

[0022] Figure 4 This is an exploded view of the battery pack structure in this utility model;

[0023] Figure 5 In this utility model Figure 4 Enlarged view of point A.

[0024] Reference numerals: 1. Mounting frame; 2. Battery pack; 3. Power connector; 4. Electrical interface; 5. Frame plate; 6. Positioning post; 7. Limiting groove; 8. Slider; 9. Angled locking block; 10. Pulling block; 11. Spring; 12. Slot plate; 13. L-shaped slot; 14. Positioning groove; 15. Connecting wire; 16. Heat dissipation hole; 17. Heat dissipation fins; 18. Cooling fan. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, this utility model embodiment provides a modular battery energy storage device, including a mounting frame 1, a battery pack 2 disposed within the mounting frame 1, a power supply connector 3 disposed above the mounting frame 1, an electrical interface 4 disposed below the mounting frame 1, a frame plate 5 disposed on the side of the mounting frame 1, a positioning post 6 disposed above the frame plate 5, a limiting groove 7 disposed within the frame plate 5, a slider 8 slidably mounted within the limiting groove 7, an inclined locking block 9 disposed above the slider 8, a lever 10 disposed on the slider 8, a spring 11 disposed within the limiting groove 7, a slotted plate 12 disposed on the side of the mounting frame 1, an L-shaped locking groove 13 disposed within the slotted plate 12, a positioning groove 14 disposed within the slotted plate 12, a connecting wire 15 disposed above the mounting frame 1, and heat dissipation holes 16 disposed within the mounting frame 1.

[0028] In one embodiment, one end of the spring 11 is mounted on the inner wall of the limiting groove 7, and the other end of the spring 11 is mounted on the slider 8. The spring 11 drives the slider 8 to tend to approach the positioning post 6. When the two sets of modules are fully docked, the inclined locking block 9 slides to the bend of the L-shaped slot 13, the elastic potential energy of the spring 11 is released, and the inclined locking block 9 is pushed into the locking section of the L-shaped slot 13.

[0029] In one embodiment, the positioning post 6 is adapted to the positioning groove 14, and the power connector 3 is adapted to the electrical interface 4. During installation, the positioning post 6 is first inserted into the positioning groove 14 to achieve initial positioning of the two sets of modules and avoid positional misalignment during docking.

[0030] In one embodiment, the battery pack 2 is electrically connected to the power connector 3 and the electrical interface 4, respectively. The power connector 3 of the lower module is precisely connected to the electrical interface 4 of the upper module. At this time, the battery packs 2 of the two modules establish a power transmission path through the cooperation of the power connector 3 and the electrical interface 4, ensuring stable power transmission.

[0031] In one embodiment, the L-shaped slot 13 is adapted to the inclined block 9. After the inclined block 9 is engaged with the locking section of the L-shaped slot 13, the two sets of modules can be securely locked to prevent loosening after splicing.

[0032] In one embodiment, the groove plate 12 is located below the frame plate 5, and the positioning groove 14 and the positioning post 6 are located on the same central axis. This facilitates pre-positioning work, thereby improving stability during installation.

[0033] In one embodiment, a heat dissipation fin 17 is connected above the mounting frame 1, and a cooling fan 18 is provided on the mounting frame 1. Heat is transferred to the heat dissipation fin 17 above the mounting frame 1. After the heat dissipation fin 17 absorbs the heat, the cooling fan 18 starts and accelerates the surrounding airflow, quickly removing the heat from the surface of the heat dissipation fin 17, especially for the connection between the power connector 3 and the electrical interface 4, which can provide efficient heat dissipation.

[0034] In operation, when assembling two sets of batteries, the upper module's slot plate 12 is aligned with the lower module's frame plate 5, ensuring the positioning post 6 and positioning groove 14 are on the same axis. The upper module is then pushed downwards, gradually inserting the positioning post 6 into the positioning groove 14, achieving initial positioning of the two modules and preventing positional shifts during docking. Simultaneously with the positioning post 6's insertion into the positioning groove 14, the L-shaped slot 13 within the slot plate 12 contacts the inclined block 9 on the lower module's frame plate 5. As the module continues to press down, the inclined block 9 is subjected to the squeezing force of the inner wall of the L-shaped slot 13, causing the slider 8 to slide away from the positioning post 6 along the limiting groove 7. At this time, the spring 11 within the limiting groove 7 is compressed and stores elastic potential energy. When the two modules are fully connected, the inclined locking block 9 slides to the bend of the L-shaped slot 13, the elastic potential energy of the spring 11 is released, and the slider 8 is pushed to reset along the limiting groove 7 towards the positioning post 6. The inclined locking block 9 is locked into the locking section of the L-shaped slot 13, realizing a stable lock between the two modules and preventing loosening after splicing. At the same time, the power supply connector 3 of the lower module is precisely connected to the electrical interface 4 of the upper module. At this time, the battery pack 2 of the two modules establishes a power transmission path through the cooperation of the power supply connector 3 and the electrical interface 4, ensuring stable power transmission.

[0035] When it is necessary to separate the two modules, first simultaneously move the levers 10 on both sides of the slider 8 away from the positioning post 6. The levers 10 drive the slider 8 to slide along the limiting groove 7. During the sliding of the slider 8, the spring 11 is compressed, and the inclined locking block 9 moves synchronously with the slider 8 and gradually disengages from the locking section of the L-shaped locking groove 13, releasing the locking state of the two modules. Then, drag the upper module upward, and the positioning groove 14 of the upper module disengages from the positioning post 6 of the lower module. At the same time, the electrical interface 4 of the upper module separates from the power supply connector 3 of the lower module, cutting off the power transmission path, until the two modules are separated, completing the disassembly operation. During battery operation, battery pack 2 generates heat. Part of the heat is dissipated directly through the heat dissipation holes 16 in the mounting frame 1, while the other part is transferred to the heat dissipation fins 17 on the top of the mounting frame 1. After the heat dissipation fins 17 absorb the heat, the cooling fan 18 starts and accelerates the surrounding airflow, quickly removing the heat from the surface of the heat dissipation fins 17. In particular, it can efficiently dissipate heat at the connection between the power connector 3 and the electrical interface 4, preventing heat from accumulating at the connection and inside the battery pack 2, ensuring the stable performance of the battery pack 2, and preventing performance degradation due to high temperature.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A modular battery energy storage device, characterized in that: The system includes a mounting frame (1), a battery pack (2) is installed inside the mounting frame (1), a power connector (3) is installed above the mounting frame (1), an electrical interface (4) is installed below the mounting frame (1), a frame plate (5) is installed on the side of the mounting frame (1), a positioning post (6) is installed above the frame plate (5), a limit groove (7) is provided inside the frame plate (5), a slider (8) is slidably installed inside the limit groove (7), an inclined block (9) is installed above the slider (8), a lever (10) is installed on the slider (8), a spring (11) is provided inside the limit groove (7), a slot plate (12) is installed on the side of the mounting frame (1), an L-shaped slot (13) is provided inside the slot plate (12), a positioning groove (14) is provided inside the slot plate (12), a connecting line (15) is provided above the mounting frame (1), and a heat dissipation hole (16) is provided inside the mounting frame (1).

2. The modular battery energy storage device according to claim 1, characterized in that: One end of the spring (11) is mounted on the inner wall of the limiting groove (7), and the other end of the spring (11) is mounted on the slider (8). The spring (11) drives the slider (8) to tend to move closer to the positioning post (6).

3. The modular battery energy storage device according to claim 1, characterized in that: The positioning post (6) is adapted to the positioning groove (14), and the power supply connector (3) is adapted to the power interface (4).

4. A modular battery energy storage device according to claim 1, characterized in that: The battery pack (2) is electrically connected to the power supply connector (3) and the electrical interface (4) respectively.

5. The modular battery energy storage device of claim 1, wherein: The L-shaped slot (13) is adapted to the inclined block (9).

6. The modular battery energy storage device of claim 1, wherein: The groove plate (12) is located below the frame plate (5), and the positioning groove (14) and the positioning column (6) are located on the same central axis.

7. The modular battery energy storage device of claim 1, wherein: A heat dissipation fin (17) is connected above the mounting frame (1), and a heat dissipation fan (18) is provided on the mounting frame (1).

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