Energy storage cabinet stack secure connection structure

Abstract

The utility model relates to the technical field of energy storage, disclose a energy storage cabinet stacking firm connection structure, including the cabinet body and the positioning mechanism fixed in the cabinet body. The positioning mechanism is by the round plate fixed in the upper cabinet bottom, the connecting column and the restriction block, and the shell fixed in the lower cabinet top, the movable column that can move horizontally in the inside, the restriction groove and the fixed assembly composition. The bolt of fixed assembly passes through the thread groove and screws into the movable column, drives the movable column to tighten, makes the restriction groove clamping restriction block, realizes the firm connection of upper and lower energy storage cabinet. Preferably, the cabinet body inside still is provided with energy storage block and damping mechanism. The damping mechanism passes through fixed block no. One, fixed block no. Two. The utility model solves the problem that the existing energy storage cabinet stacks when positioning is not accurate, the connection reliability is poor, is easy to loosen, realizes the accurate positioning and firm connection of energy storage cabinet, provides effective shock protection to the inside energy storage block simultaneously, improves the stability and use safety of overall structure.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a stable connection structure for stacking energy storage cabinets. Background Technology

[0002] With the transformation of the global energy structure and the rapid development of renewable energy, energy storage systems, especially large-scale energy storage cabinets, are being used more and more widely in power infrastructure. To meet the capacity requirements and space constraints in different scenarios, modular and stacked installation of energy storage cabinets has become a common and efficient deployment method. Vertically stacking multiple energy storage cabinets can effectively save floor space and improve space utilization.

[0003] However, existing energy storage cabinets are generally connected and fixed using traditional bolts or screws when stacked in multiple layers. This connection method has revealed significant shortcomings in practical applications. First, bolted connections require operators to precisely align the upper and lower cabinets for successful tightening, which is often time-consuming and labor-intensive at large energy storage cabinet installation sites, and the precision of manual operation is difficult to guarantee. If the alignment is inaccurate, the bolts may not be fully tightened, or the connection points may experience uneven stress. Second, due to the large weight of the energy storage cabinets and the fact that they often contain precision components, the bolted connections are prone to gradually loosening due to repeated stress during long-term operation, especially under the influence of external vibrations, wind, or foundation settlement. This loosening not only reduces the overall stability of the stacked energy storage cabinets but may also cause swaying, tilting, or even collapse in extreme cases, seriously threatening the safe operation of the equipment and the safety of personnel and property. Therefore, this utility model proposes a stable connection structure for stacked energy storage cabinets to solve the shortcomings of inaccurate connections, insufficient connection reliability, and poor stability in the existing technology for stacked energy storage cabinet installation. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a stable connection structure for stacking energy storage cabinets, aiming to improve the problems of inaccurate positioning and insufficient connection reliability of some energy storage cabinets during stacking installation in the prior art.

[0005] This utility model provides a stable connection structure for stacking energy storage cabinets, including: a cabinet body; and a positioning mechanism fixed to the cabinet body.

[0006] The positioning mechanism includes a circular plate fixed to the upper cabinet, a connecting column fixedly connected to the circular plate, and a limiting block fixed to the end of the connecting column; the positioning mechanism also includes a shell fixed to the lower cabinet, a movable column that can be moved laterally inside the shell, and a limiting groove for engaging the limiting block on the movable column.

[0007] Furthermore, the positioning mechanism also includes a fixing component, which includes a bolt and a threaded groove. The bolt drives the moving column to tighten by passing laterally through the threaded groove and screwing the thread into the moving column, thereby causing the limiting groove to clamp the limiting block, thus forming a stable inter-cabinet connection.

[0008] Preferably, the circular plate is fixed to the bottom of the cabinet, and the outer shell is fixed to the top of the other cabinet. This top-to-bottom arrangement allows the cabinets to be easily aligned vertically when stacked, providing a convenient basis for subsequent locking operations.

[0009] Preferably, the cabinet also includes an energy storage block and a shock-absorbing mechanism for buffering and protecting the energy storage block. The shock-absorbing mechanism includes a first fixed block fixedly connected to the inside of the cabinet and a second fixed block connected to the energy storage block. The first fixed block and the second fixed block serve as the fixed reference point and the moving reference point of the shock-absorbing system, respectively, forming the basic framework of the entire shock-absorbing system.

[0010] Preferably, as a specific connection method, the second fixing block is engaged with the outside of the energy storage block via a locking mechanism. This locking method not only ensures a secure connection but also facilitates the installation, maintenance, and replacement of the energy storage block.

[0011] Preferably, the fixing blocks are connected by a connecting rod. The connecting rod enhances the structural rigidity between the fixing blocks and provides a stable support platform for the subsequent installation of the spring system.

[0012] Preferably, a spring is sleeved on the outside of the connecting rod, and each end of the spring is connected to a sliding ring that can slide on the connecting rod. This structure forms a first-stage horizontal damping system, which absorbs and dissipates energy through the reciprocating motion of the spring.

[0013] Preferably, the movable ring and the fixed block two are connected by a movable rod. The movable rod, as a force transmission component, can accurately transmit the swaying displacement of the energy storage block to the movable ring, thereby driving the spring one to perform shock absorption.

[0014] Preferably, a second spring is also connected between the first fixed block and the second fixed block. The second spring forms a second-stage direct-acting shock absorption system, which works in conjunction with the system composed of the first spring to form a dual buffer system, capable of more comprehensively absorbing impact forces from different directions.

[0015] This utility model has the following beneficial effects: 1. This utility model, by setting a positioning mechanism, uses a connecting column extending from the upper cabinet to insert into the outer shell of the lower cabinet when the upper and lower cabinets are stacked. Then, the bolt drives the moving column to clamp the limiting block on the connecting column. This solves the problems of inaccurate positioning, poor connection reliability, and easy loosening after long-term use in the prior art when energy storage cabinets are stacked. It achieves the effect of precise positioning and stable connection, and greatly improves the stability and safety of the overall structure.

[0016] 2. This utility model, by setting a shock-absorbing mechanism inside the cabinet, utilizes the synergistic effect of fixed blocks, connecting rods, movable rods, and a double spring system to elastically fix the energy storage block inside the cabinet, solving the problem in the prior art that the energy storage block is easily damaged by bumps and collisions during transportation and handling, achieving the effect of effective shock absorption and protection for the energy storage block, and improving the reliability and service life of the product.

[0017] 3. This utility model has an ingenious overall structural design. The positioning mechanism makes the installation and disassembly of the cabinets more convenient and quick, replacing the tedious screw alignment and fixing process. At the same time, the internal shock absorption mechanism provides comprehensive protection for the core energy storage components, making the entire device highly reliable and practical throughout the entire installation, transportation and use cycle. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the energy storage cabinet stacking and stable connection structure proposed in this utility model; Figure 2 This is a schematic diagram of the cabinet body of the energy storage cabinet stacking and stable connection structure proposed in this utility model; Figure 3 This is a schematic diagram of the energy storage block of the energy storage cabinet stacking and stable connection structure proposed in this utility model; Figure 4 This is a schematic diagram of the circular plate of the energy storage cabinet stacking and stable connection structure proposed in this utility model; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0019] Legend: 1. Cabinet; 2. Positioning mechanism; 21. Circular plate; 22. Connecting column; 23. Limiting block; 24. Outer shell; 25. Moving column; 26. Limiting groove; 27. Fixing component; 271. Bolt; 272. Threaded groove; 3. Shock absorption mechanism; 31. Fixed block one; 32. Connecting rod; 33. Spring one; 34. Moving ring; 35. Movable rod; 36. Fixed block two; 37. Spring two; 38. Locking block; 4. Energy storage blocks. Detailed Implementation

[0020] 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.

[0021] Example 1, referring to Figures 1 to 5 This utility model provides a stable connection structure for stacking energy storage cabinets, which aims to solve the problems of inaccurate positioning and insufficient connection reliability in the existing technology, which lead to unstable structure.

[0022] like Figure 1 and Figure 2 As shown, it includes a cabinet 1 and a positioning mechanism 2 fixed to the cabinet 1; the positioning mechanism 2 is used to achieve precise positioning and stable locking between the upper and lower cabinets 1. like Figure 1 , Figure 3 and Figure 4 As shown, the core structure of the positioning mechanism 2 consists of components fixed to different cabinets 1. Specifically, a circular plate 21 is fixed to the bottom of the upper cabinet 1, and a connecting post 22 is fixedly connected to the circular plate 21. A limiting block 23 is fixed to the end of the connecting post 22 away from the circular plate 21. The positioning mechanism 2 also includes a housing 24 fixed to the top of the lower cabinet 1. The housing 24 is used to accommodate and lock the limiting block 23 from the upper cabinet 1. A movable post 25 is movably arranged inside the housing 24, and a limiting groove 26 for engaging the limiting block 23 is provided on the movable post 25. When the upper and lower cabinets are aligned, the positioning mechanism 2 can be positioned as follows: When the cabinets 1 are stacked, the limiting block 23 extends into the outer shell 24 and falls into the limiting groove 26 to achieve initial positioning. In order to clamp the limiting block 23, a fixing component 27 is provided inside the moving column 25. The fixing component 27 includes a bolt 271 and a threaded groove 272. The bolt 271 passes through the threaded groove 272 laterally and is screwed into the moving column 25. By tightening the bolt 271, the two moving columns 25 can be driven to move closer and tighten each other, thereby making the limiting groove 26 on the moving column 25 firmly clamp the limiting block 23, completing the stable connection between the upper and lower cabinets 1.

[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5The overall structure of the shock absorption mechanism 3 forms multiple elastic connections between the inner wall of the cabinet 1 and the outer wall of the energy storage block 4 to buffer and absorb impacts. The shock absorption mechanism 3 includes a fixed block 31 fixedly connected inside the cabinet 1, and a fixed block 36 movable and latched to the outside of the energy storage block 4 via a latch 38. The fixed block 31 serves as the fixed reference of the shock absorption system, while the fixed block 36 serves as the motion reference that moves with the energy storage block 4. A spring 37 is connected between the fixed block 31 and the fixed block 36. The spring 37 is mainly used to absorb and disperse impact forces from the side or vertical direction. To further enhance the shock absorption effect, the two fixed blocks 31 are also connected by a... A connecting rod 32 is connected, and a spring 33 is sleeved on the outside of the connecting rod 32. The two ends of the spring 33 are respectively connected to a movable ring 34. The outside of the movable ring 34 is connected to the fixed block 36 through a movable rod 35. This structure forms a second set of spring damping system. When the energy storage block 4 shakes, the fixed block 36 will drive the movable ring 34 to slide on the connecting rod 32 through the movable rod 35, thereby compressing or stretching the spring 33 and converting the impact energy into the elastic potential energy of the spring. This dual damping system composed of spring 33 and spring 37 can ensure that the force energy of the energy storage block 4 is fully dispersed when it is subjected to multi-directional impact, thus improving the protection effect of the energy storage block 4.

[0024] The circular plate 21 is fixed to the bottom of the upper cabinet 1, and the outer shell 24 is fixed to the top of the lower cabinet 1. This positional relationship allows the upper cabinet 1 to naturally insert the connecting column 22 and the limiting block 23 into the outer shell 24 of the lower cabinet 1 by gravity, simplifying the installation process and improving the stability of the connection. The cabinet 1 contains an energy storage block 4 and a shock-absorbing mechanism 3 for buffering the energy storage block 4. The shock-absorbing mechanism 3 includes a first fixing block 31 fixedly connected inside the cabinet 1 and a second fixing block 36 connected to the energy storage block 4. The first fixing block 31 is firmly installed on the structural components of the cabinet 1, serving as a fixed reference point for the shock-absorbing system. The second fixing block 36 is directly connected to the energy storage block 4, ensuring that the shock absorption effect is directly applied to the energy storage block 4, while facilitating installation and disassembly. The second fixing block 36 is movably engaged with the outside of the energy storage block 4 via a locking block 38. The locking block 38 can be designed with a flexible or adjustable structure, allowing the second fixing block 36 to flexibly engage with energy storage blocks 4 of different sizes or shapes.

[0025] Two fixed blocks 31 are connected by a connecting rod 32. The connecting rod 32 provides structural stability for the shock absorption system and serves as a mounting base for spring 33 and moving ring 34. Spring 33 is sleeved on the outside of the connecting rod 32, and moving ring 34 is connected to both ends of spring 33. When subjected to horizontal impact force, spring 33 absorbs energy through its own compression and elongation. Moving ring 34 slides on the connecting rod 32, ensuring the free deformation of spring 33. Moving ring 34 is connected to fixed block 36 by a movable rod 35. Movable rod 35 can convert the displacement of fixed block 36 into a pushing and pulling force on moving ring 34, thereby deforming spring 33 and achieving shock absorption. Spring 37 is connected between fixed block 31 and fixed block 36. Spring 37 can directly provide elastic support between cabinet 1 and energy storage block 4, working in conjunction with spring 33 to absorb and disperse the impact force on energy storage block 4.

[0026] The implementation principle of this application embodiment is as follows: If the positioning of the upper and lower cabinets 1 is inaccurate during the installation process, it may lead to uneven force on the connection parts, affecting the overall stability. During long-term use, the uneven force may cause the connection parts to loosen, or even cause the cabinet 1 to tilt or collapse. The positioning mechanism 2 replaces the screw fixation to solve these problems. A connecting column 22 is fixedly connected to the circular plate 21 fixed at the bottom of the upper cabinet 1. A limiting block 23 is fixed to the other end of the connecting column 22. The limiting block 23 is inserted into the shell 24 fixed on the lower cabinet 1. The limiting block 23 is stuck in the limiting groove 26 of the two horizontally movable columns 25. At this time, the bolt 271 of the fixing component 27 inside the movable column 25 is screwed into the movable column 25 horizontally through the thread groove 272, tightening the two movable columns 25, so that the limiting groove 26 on the movable column 25 clamps and fixes the limiting block 23.

[0027] During transportation or handling, when the cabinet 1 is subjected to external impact or vibration, the energy storage block 4 inside will undergo relative displacement due to inertia. The shaking of the energy storage block 4 will cause the fixing block 36 connected by the locking block 38 to move.

[0028] The movement of the second fixed block 36 will directly compress or stretch the second spring 37 connected to the first fixed block 31, and absorb and disperse the impact force through the elastic deformation of the second spring 37.

[0029] On the other hand, the movement of the fixed block 36 transmits force to the movable ring 34 connected to the connecting rod 32 via the movable rod 35. The movable ring 34 slides on the connecting rod 32, thereby compressing or stretching the spring 33 sleeved on the outside of the connecting rod 32, and further absorbing and dispersing the impact force through the elastic deformation of the spring 33.

[0030] Through the two synergistic elastic systems of spring 33 and spring 37, the impact force on the energy storage block 4 is effectively buffered and dissipated, avoiding direct impact on the energy storage block 4, effectively preventing damage to the energy storage block 4 caused by impact during transportation and handling, and improving the overall reliability of the energy storage cabinet.

Claims

1. A robust stacking and connection structure for energy storage cabinets, including: Cabinet (1); Positioning mechanism (2) is fixed to the cabinet (1); Its features are, The positioning mechanism (2) includes a circular plate (21) fixed to the upper cabinet (1), a connecting column (22) fixedly connected to the circular plate (21), and a limiting block (23) fixed to the end of the connecting column (22). The positioning mechanism (2) also includes a shell (24) fixed to the lower cabinet (1). A movable column (25) is provided inside the shell (24) and can be moved laterally. A limiting groove (26) for engaging the limiting block (23) is provided on the movable column (25). A fixing component (27) is provided inside the movable column (25). The fixing component (27) includes a bolt (271) and a threaded groove (272). The bolt (271) passes laterally through the threaded groove (272) and is screwed into the movable column (25) to drive the movable column (25) to tighten, so that the limiting groove (26) clamps the limiting block (23).

2. The energy storage cabinet stacking and stable connection structure according to claim 1, characterized in that, The circular plate (21) is fixed to the bottom of the cabinet (1), and the outer shell (24) is fixed to the top of the other cabinet (1).

3. The energy storage cabinet stacking and stable connection structure according to claim 1, characterized in that, The cabinet (1) is also equipped with an energy storage block (4) and a shock-absorbing mechanism (3) for buffering the energy storage block (4).

4. The energy storage cabinet stacking and stable connection structure according to claim 3, characterized in that, The shock absorption mechanism (3) includes a fixing block (31) fixedly connected inside the cabinet (1), and the fixing blocks (31) are connected to each other by a connecting rod (32).

5. The energy storage cabinet stacking and stable connection structure according to claim 4, characterized in that, A spring (33) is sleeved on the outside of the connecting rod (32), and a movable ring (34) is connected to both ends of the spring (33).

6. The energy storage cabinet stacking and stable connection structure according to claim 5, characterized in that, The shock absorption mechanism (3) also includes a second fixed block (36), which is connected to the moving ring (34) via a movable rod (35).

7. The energy storage cabinet stacking and stable connection structure according to claim 6, characterized in that, A spring (37) is connected between the first fixing block (31) and the second fixing block (36).

8. The energy storage cabinet stacking and stable connection structure according to claim 6, characterized in that, The shock absorption mechanism (3) also includes a locking block (38), and the second fixing block (36) is moved and locked to the outside of the energy storage block (4) through the locking block (38).

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