An immersion liquid cooling energy storage cabinet convenient to maintain

Abstract

The utility model relates to energy storage equipment technical field especially relates to a submerged liquid cooling energy storage cabinet convenient to maintain, including energy storage cabinet, the energy storage cabinet is arrayed and is equipped with a plurality of baffle, forms independent cavity between adjacent baffle, and the positioning frame is placed in the independent cavity, and the guide sliding block is symmetrically installed positioning frame both sides, and the guide sliding block is slid in the guide sliding groove that is opened in independent cavity both sides, and the electric core is arrayed and placed on the positioning frame, and the handle is installed on the electric core top. The utility model discloses through separating the energy storage cabinet into a plurality of independent chambers, and each independent chamber places the positioning frame, and places a plurality of electric cores on the positioning frame, and each electric core is relatively independent, so when needing to detect and maintain the electric core, only need to pull the handle on the corresponding electric core, can take out the corresponding electric core, does not need to dismantle integrally, and the maintenance is more convenient, and each independent chamber is independently filled with coolant, thereby avoiding the problem that the temperature of the center electric core is too high due to the whole accumulation of the electric core.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an easy-to-maintain immersion liquid-cooled energy storage cabinet. Background Technology

[0002] For example, Chinese patent CN222673200U discloses an easy-to-maintain immersion liquid-cooled energy storage cabinet. The bottom of the inner wall of the one-piece welded cabinet is made into a hollow flow channel structure. The coolant enters from the liquid inlet at the bottom of the inner wall of the cabinet, which ensures that the flow rate of coolant for each battery cell in the cabinet is kept uniform. This ensures that the temperature difference of the battery cells is close to zero degrees, improves heat dissipation efficiency, reduces temperature difference, extends battery cell life, and reduces energy storage costs. The module positioning component can limit and fix the battery cells, preventing damage caused by shaking.

[0003] As described in the application, the battery cells are stacked as a whole inside the enclosure, resulting in a significant temperature difference between the central and peripheral cells. The central area is prone to premature damage due to high temperatures. Furthermore, during maintenance, the entire battery cell must be removed for inspection, making it impossible to remove faulty cells individually. This cumbersome disassembly process significantly extends maintenance time. Additionally, the integrated enclosure structure necessitates the disassembly of numerous connections for replacing liquid cooling system components, further reducing maintenance efficiency and hindering the reliability and economy of the energy storage cabinet. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an easy-to-maintain immersion liquid-cooled energy storage cabinet, which solves the technical problems of existing technologies where the battery cells are stacked inside the cabinet, resulting in a significant temperature difference between the central and peripheral battery cells, making the central area prone to premature damage due to high temperature, and requiring the entire battery cell to be removed and disassembled during maintenance, which is a cumbersome process.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an easy-to-maintain immersion liquid-cooled energy storage cabinet, including an energy storage cabinet, in which multiple partition plates are fixedly arranged in an array, and independent cavities are formed between adjacent partition plates. A positioning frame is placed in the independent cavity, and guide sliders are symmetrically installed on both sides of the positioning frame. The guide sliders slide in guide grooves opened on both sides of the independent cavity. Battery cells are arranged in an array on the positioning frame, and handles are installed on the top of the battery cells. The energy storage cabinet is equipped with a lifting component for easy maintenance of the battery cells. Each independent cavity is equipped with an independently zoned cooling component.

[0006] A further improvement is that the positioning frame includes a base plate, on which a limiting plate is mounted via a connecting rod. The base plate and the limiting plate are respectively provided with a positioning groove and a limiting through hole adapted to the battery cell.

[0007] A further improvement is that the lifting assembly includes a lifting ring mounted on a guide slider, an electric hoist is mounted on the energy storage cabinet, a hook adapted to the lifting ring is mounted at the end of the cable inside the electric hoist, and guide rings perpendicularly corresponding to multiple lifting rings are arrayed on the energy storage cabinet.

[0008] A further improvement is that the cooling component includes an inlet pipe installed in the tube groove of the energy storage cabinet, and multiple inlet pipes are located below the independent chambers respectively. The top of the inlet pipe is provided with an outlet hole, and the bottom wall and bottom plate of the energy storage cabinet are also provided with through holes corresponding to the outlet holes. The top of the back of the energy storage cabinet is arrayed with return pipes corresponding to multiple independent chambers respectively. The inlet pipe is provided with an injection port, and the injection port is provided with an electric sealing valve.

[0009] A further improvement is that the diameter of the liquid outlet at the front end of the liquid inlet pipe is larger than the diameter of the liquid outlet at the rear end.

[0010] A further improvement is that a water level sensor, a temperature sensor, a dielectric constant sensor, and a particle size sensor are installed sequentially from top to bottom on the partition plate. Drainage pipes corresponding to the independent chambers are arrayed on the bottom back of the energy storage cabinet, and electric sealing valves are also installed on the drainage pipes.

[0011] By employing the above technical solution, this utility model provides an easy-to-maintain immersion liquid-cooled energy storage cabinet, which has at least the following beneficial effects:

[0012] 1. This utility model divides the energy storage cabinet into multiple independent chambers. Each independent chamber holds a positioning frame, and multiple battery cells are placed on the positioning frame. Each battery cell is relatively independent. Therefore, when it is necessary to test and maintain the battery cell, you only need to pull the handle on the corresponding battery cell to remove the corresponding battery cell without disassembling the whole cell, making maintenance more convenient.

[0013] 2. This utility model involves passing the hook on the electric hoist through the guide ring and connecting it to the lifting ring. Then, the electric hoist is started to pull the positioning frame up as a whole until all the battery cells on the positioning frame are pulled up for inspection and maintenance. The modular design makes extraction and maintenance more convenient and labor-saving.

[0014] 3. This utility model introduces coolant into each independent cavity, thereby avoiding excessive temperature buildup in the central battery cell due to overall cell accumulation. Furthermore, by setting out outlet holes with different diameters at the front and back, when the coolant rises to the top after heat exchange, it generates a thrust from front to back, causing the coolant to be discharged from front to back through the return pipe. This prevents the coolant from accumulating at the top after absorbing heat, thus avoiding affecting the efficiency of heat exchange and cooling. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top-down schematic diagram of the internal structure of the energy storage cabinet of this utility model;

[0019] Figure 3 This is a rear view of the internal structure of the energy storage cabinet of this utility model;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the energy storage cabinet of this utility model;

[0021] Figure 5 This is a partial internal structural diagram of the energy storage cabinet of this utility model from a side section.

[0022] Figure 6 This is a top-view structural diagram of the liquid inlet pipe of this utility model.

[0023] In the diagram: 1. Energy storage cabinet; 2. Partition plate; 3. Independent cavity;

[0024] 4. Positioning frame; 41. Base plate; 42. Limiting plate;

[0025] 5. Guide slider; 6. Battery cell; 7. Handle;

[0026] 8. Lifting assembly; 81. Lifting ring; 82. Electric hoist; 83. Lifting hook; 84. Guide ring;

[0027] 9. Cooling assembly; 91. Liquid inlet pipe; 92. Liquid outlet; 93. Return pipe; 94. Liquid injection port; 95. Electric sealing valve;

[0028] 101. Water level sensor; 102. Temperature sensor; 103. Dielectric constant sensor; 104. Particle size sensor; 105. Drain pipe. Detailed Implementation

[0029] 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.

[0030] Currently, existing technologies that stack battery cells entirely within a casing lead to significant temperature differences between the central and peripheral cells, making the central area prone to premature damage due to high temperatures. Furthermore, maintenance requires the complete removal of the entire battery cell, resulting in a cumbersome disassembly process. This embodiment provides a maintenance-friendly immersion liquid-cooled energy storage cabinet that divides the cabinet into multiple independent chambers, each with its own coolant supply. This avoids the problem of excessively high temperatures in the central battery cell caused by the stacking of cells. Moreover, maintenance only requires removing the cells from the corresponding chamber, eliminating the need for complete removal and simplifying inspection and maintenance. Please refer to... Figures 1-6 The easy-to-maintain immersion liquid-cooled energy storage cabinet includes an energy storage cabinet 1. Multiple partition plates 2 are fixedly arranged in an array inside the energy storage cabinet 1. Independent cavities 3 are formed between adjacent partition plates 2. A positioning frame 4 is placed in the independent cavity 3. Guide sliders 5 are symmetrically installed on both sides of the positioning frame 4 and slide in the guide grooves opened on both sides of the independent cavity 3. Battery cells 6 are arranged in an array on the positioning frame 4. A handle 7 is installed on the top of the battery cells 6. A lifting assembly 8 is provided on the energy storage cabinet 1 to facilitate the maintenance of the battery cells 6. Each independent cavity 3 is provided with an independently zoned cooling assembly 9.

[0031] The positioning frame 4 includes a base plate 41, on which a limiting plate 42 is mounted via a connecting rod. The base plate 41 and the limiting plate 42 are respectively provided with positioning grooves and limiting through holes adapted to the battery cells 6. By dividing the energy storage cabinet 1 into multiple independent cavities 3, each independent cavity 3 is independently circulated with coolant for cooling, thereby avoiding the problem of significant temperature difference between the central battery cells and the edge battery cells caused by the overall stacking of battery cells. Then, the guide sliders 5 on the front and rear sides of the positioning frame 4 are aligned with the guide grooves and slid into the bottom of the independent cavity 3. Subsequently, the battery cells 6 are inserted into the limiting through holes on the upper limit plate 42 of the positioning frame 4 in sequence until the bottom of the battery cell 6 is embedded in the positioning groove on the base plate 41, thereby completing the limiting and fixing of the battery cell 6 and preventing the battery cell 6 from shaking and colliding and being damaged. When it is necessary to inspect and maintain the battery cell 6, it is only necessary to pull the handle 7 on the corresponding battery cell 6 to remove the corresponding battery cell 6 without disassembling the whole, making maintenance more convenient.

[0032] Because the individual battery cell assembly consisting of multiple battery cells 6 on the same positioning frame 4 is quite heavy, and it is difficult to remove the positioning frame 4 and the battery cells 6 on it manually when inspection and maintenance of the same group of battery cell assemblies is required, the device is also equipped with a lifting assembly 8. The lifting assembly 8 includes a lifting ring 81 installed on the guide slider 5, an electric hoist 82 installed on the energy storage cabinet 1, and a hook 83 adapted to the lifting ring 81 installed at the end of the cable inside the electric hoist 82. Guide rings 84 perpendicularly corresponding to multiple lifting rings 81 are arranged in an array on the energy storage cabinet 1 to lift the electric hoist 82. The hook 83 passes through the guide ring 84 and is connected to the lifting ring 81 on the guide slider 5. Then, the electric hoist 82 is started by the main control equipment to pull the positioning frame 4 up as a whole until all the battery cells 6 on the positioning frame 4 are pulled up for inspection and maintenance. The modular design makes it more convenient and labor-saving to remove and maintain the battery. After the cable connected to the hook 83 is limited by the guide ring 84, the cable between the guide ring 84 and the lifting ring 81 is forced to be straightened into a vertical state, which corrects the original inclined tension into a vertical tension, so that the positioning frame 4 rises more smoothly and avoids collision and scratch.

[0033] To further promote the circulation and cooling of coolant in each independent chamber 3, the device is also equipped with a cooling component 9. The cooling component 9 includes an inlet pipe 91 installed in the pipe groove on the energy storage cabinet 1, and multiple inlet pipes 91 are located below the independent chamber 3. The top of the inlet pipe 91 is provided with an outlet hole 92, and the bottom wall and bottom plate 41 of the energy storage cabinet 1 are also provided with through holes corresponding to the outlet holes 92. The top back of the energy storage cabinet 1 is arrayed with return pipes 93 corresponding to multiple independent chambers 3. The inlet pipe 91 is equipped with a liquid injection port 94, and the liquid injection port 94 is equipped with an electric sealing valve 95.

[0034] The diameter of the front outlet hole 92 on the inlet pipe 91 is larger than the diameter of the rear outlet hole 92. Coolant is introduced through the inlet pipe 91 and flows upward from the bottom through the outlet hole 92, which cooperates with the through holes on the bottom wall and bottom plate 41 of the energy storage cabinet 1. As the coolant absorbs heat, its density decreases and it naturally floats upward. Therefore, after fully covering the surface of the battery cell 6 and absorbing heat, it returns to the external liquid cooling circulation chamber from the top return pipe 93, forming a low-inlet, high-outlet convection circulation, which improves the efficiency of heat exchange and cooling. The diameter of the front outlet hole 92 is larger than the diameter of the rear outlet hole 92, so the front coolant has a faster flow rate and a larger flow rate. When the coolant rises to the top after heat exchange, it generates a thrust from front to back, causing the cooled coolant to be discharged from front to back through the return pipe 93, thereby avoiding the accumulation of cooled coolant after heat absorption at the top, which would affect the efficiency of heat exchange and cooling.

[0035] Furthermore, a water level sensor 101, a temperature sensor 102, a dielectric constant sensor 103, and a particle size sensor 104 are installed sequentially from top to bottom on the partition plate 2. Drain pipes 105, corresponding to the independent chambers 3, are arrayed on the bottom rear of the energy storage cabinet 1. Electric sealing valves 95 are also installed on the drain pipes 105. The water level sensor 101 monitors the remaining coolant level in the independent chambers 3 in real time, facilitating timely replenishment via the injection port 94. The temperature sensor 102 monitors the temperature in each independent chamber 3 in real time, allowing for targeted adjustment of the coolant flow rate in chambers 3 with abnormal temperatures, achieving independent temperature control for each zone. The dielectric constant sensor 103 detects the insulation properties of the coolant, while the particle size sensor 104 monitors the impurity content of the coolant in real time. When the dielectric constant of the coolant decreases or impurities exceed the standard, the electric sealing valve 95 on the drain pipe 105 is opened to replace the coolant promptly, ensuring cooling efficiency and reducing maintenance caused by the high temperature of the battery cells 6.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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 maintenance-friendly immersion liquid-cooled energy storage cabinet, comprising an energy storage cabinet (1), characterized in that: Multiple partition plates (2) are fixedly arranged in an array inside the energy storage cabinet (1). An independent cavity (3) is formed between adjacent partition plates (2). A positioning frame (4) is placed in the independent cavity (3). Guide sliders (5) are symmetrically installed on both sides of the positioning frame (4). The guide sliders (5) slide in the guide grooves opened on both sides of the independent cavity (3). Battery cells (6) are arranged in an array on the positioning frame (4). A handle (7) is installed on the top of the battery cell (6). A lifting assembly (8) is provided on the energy storage cabinet (1) to facilitate the maintenance of the battery cell (6). Each independent cavity (3) is provided with an independently zoned cooling assembly (9).

2. The easy-to-maintain immersion liquid-cooled energy storage cabinet according to claim 1, characterized in that: The positioning frame (4) includes a base plate (41), and a limiting plate (42) is installed on the base plate (41) via a connecting rod. The base plate (41) and the limiting plate (42) are respectively provided with positioning grooves and limiting through holes adapted to the battery cell (6).

3. The easy-to-maintain immersion liquid-cooled energy storage cabinet according to claim 1, characterized in that: The lifting assembly (8) includes a lifting ring (81) mounted on a guide slider (5), an electric hoist (82) mounted on the energy storage cabinet (1), a hook (83) adapted to the lifting ring (81) installed at the end of the cable inside the electric hoist (82), and guide rings (84) vertically corresponding to multiple lifting rings (81) mounted in an array on the energy storage cabinet (1).

4. The easy-to-maintain immersion liquid-cooled energy storage cabinet according to claim 2, characterized in that: The cooling component (9) includes an inlet pipe (91) installed in the pipe groove of the energy storage cabinet (1), and multiple inlet pipes (91) are located below the independent chambers (3). The top of the inlet pipe (91) is provided with an outlet hole (92), and the bottom wall of the energy storage cabinet (1) and the bottom plate (41) are also provided with through holes corresponding to the outlet holes (92). The top back of the energy storage cabinet (1) is equipped with return pipes (93) corresponding to multiple independent chambers (3). The inlet pipe (91) is equipped with an injection port (94), and the injection port (94) is equipped with an electric sealing valve (95).

5. The easy-to-maintain immersion liquid-cooled energy storage cabinet according to claim 4, characterized in that: The diameter of the front outlet hole (92) on the inlet pipe (91) is larger than the diameter of the rear outlet hole (92).

6. The easy-to-maintain immersion liquid-cooled energy storage cabinet according to claim 1, characterized in that: The partition plate (2) is equipped with a water level sensor (101), a temperature sensor (102), a dielectric constant sensor (103), and a particle size sensor (104) in sequence from top to bottom. The bottom array of the back of the energy storage cabinet (1) is equipped with drain pipes (105) corresponding to the independent chambers (3), and an electric sealing valve (95) is also installed on the drain pipes (105).

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