An easily-maintained energy storage battery cabinet

Abstract

The application discloses an easy-to-overhaul energy storage battery cabinet and relates to the technical field of energy storage battery cabinets. The easy-to-overhaul energy storage battery cabinet comprises a cabinet shell body, a maintenance door rotatably connected to the rear side of the cabinet shell body, a partition plate fixedly connected to the inside of the cabinet shell body and used for placing battery assemblies, and an auxiliary box fixedly connected to the side of the cabinet shell body. The position of the first magnetic block gradually moves to the corresponding position of the second magnetic block. Since the second magnetic block and the first magnetic block have the same magnetism, the second magnetic block slides along the limiting rod and presses the reset spring under the magnetic repulsion of the same polarity, simultaneously driving the fixedly connected spoiler on the lower side to move synchronously, disturbing the inert gas deposited in the auxiliary box, accelerating the gas flow, ensuring that the inert gas can be smoothly and sufficiently discharged into the inside of the cabinet shell body, avoiding low discharge efficiency caused by gas deposition, and ensuring the effect of inert gas dilution and fire retardation.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery cabinet technology, specifically to an easy-to-maintain energy storage battery cabinet. Background Technology

[0002] A battery storage cabinet is a specialized cabinet that houses multiple batteries, providing users with convenient centralized management of these batteries.

[0003] Existing technology 1 (Chinese patent with announcement number CN111883712B and announcement date of 2024-10-25) discloses an energy storage battery cabinet, which has a battery cabinet frame as a layered frame structure, with the layers separated by a base plate; a bottom tray fixed on the bottom, on which multiple spaced-apart battery cells are fixedly placed, and ventilation holes are provided at intervals in the grooves on the bottom tray for placing the battery cells; and a battery cabinet shell for sealing the battery cabinet frame, including a rear end shell, on which ventilation holes are provided in the area corresponding to each layer of the battery cabinet frame, which significantly reduces manufacturing and maintenance costs while improving heat dissipation efficiency and temperature uniformity.

[0004] There is also a prior art (Chinese patent CN112366391B, published on August 16, 2022) describing an energy storage battery cabinet, comprising a cabinet body and a cooling system. The cooling system is used to cool the batteries inside the cabinet body. The cooling system includes an air conditioner, a first air duct, and a second air duct. The first air duct is located at the top of the cabinet body and the air conditioner, and the second air duct is located at the back of the cabinet body, with the air outlet at the top of the air conditioner connected to the first air duct. Multiple exhaust vents are opened on the side of the first air duct facing the second air duct. Multiple vents are opened on the back of the cabinet body, connecting to the second air duct and the interior of the cabinet body. The cold airflow generated by the air conditioner passes sequentially through the top air outlet, the first air duct, the exhaust vents, the second air duct, and the vents, finally entering the cabinet body to cool the batteries, eliminating the need for a fan at the top of the air duct. Therefore, the energy storage battery cabinet provided by this invention solves the technical problem that a high-speed, high-volume fan at the top of the air duct easily resonates with the air duct, causing significant noise.

[0005] Existing energy storage battery cabinets still have certain shortcomings during use. For example, when maintenance personnel open the cabinet door to inspect the batteries inside, the batteries still retain a high residual temperature due to prolonged operation. Some aging batteries may also pose risks of leakage, gas overflow, or even spontaneous combustion, threatening the personal safety of maintenance personnel. At the same time, most energy storage battery cabinets currently have the inspection door located on the front of the cabinet. During maintenance, batteries in adjacent areas continue to operate, which can interfere with the current maintenance area. Furthermore, it is impossible to perform separate safety pre-treatment on the target maintenance area. The overall safety and convenience of maintenance need to be improved.

[0006] Therefore, we propose an easy-to-maintain energy storage battery cabinet to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide an easy-to-maintain energy storage battery cabinet to solve the problem mentioned in the background art: when maintenance personnel open the cabinet door to perform maintenance operations on the batteries inside, the batteries inside the cabinet still retain a high residual temperature due to long-term operation, and some aging batteries may also have the risk of leakage, gas overflow, or even spontaneous combustion, threatening the personal safety of maintenance personnel.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an easy-to-maintain energy storage battery cabinet, comprising a cabinet body, an inspection door rotatably connected to the rear side of the cabinet body, and a partition for placing battery components fixedly connected inside the cabinet body, with the partition corresponding one-to-one with the inspection door. An auxiliary box is fixedly connected to the side of the cabinet body, and the auxiliary box is filled with inert gas. An activation mechanism is provided on the side of the cabinet body, which operates synchronously with the opening and closing of the inspection door. When the inspection door is opened, the inert gas inside the cabinet body is filled. A turbulence mechanism is provided inside the auxiliary box to turbulentize the stored gas.

[0009] Preferably, the starting mechanism includes a fixing box, which is fixedly connected to the side of the cabinet body and located below the partition. An electric telescopic rod is fixedly connected inside the fixing box, and the output end of the electric telescopic rod faces the inside of the cabinet body.

[0010] Preferably, the output end of the electric telescopic rod is fixedly connected to a connecting plate, and the outer end of the connecting plate extends to the outside of the fixed box. A connecting rod is fixedly connected to the other side of the connecting plate. The connecting rod is located on the side of the fixed box, and a limit block is provided on the side of the fixed box. The connecting rod slides stably through the limit block.

[0011] Preferably, a first magnetic block is fixedly connected to the lower part of the connecting plate, and a connecting frame is fixedly connected to the lower side of the first magnetic block. Both the connecting frame and the first magnetic block are arranged in an "L" shape, and a sliding plate is fixedly connected to one side of the connecting frame.

[0012] Preferably, one side of the sliding plate is tightly fitted to the inner wall of the cabinet body, and two sets of limiting strips are fixedly connected to the inner wall of the cabinet body. The sliding plate and the limiting strips are slidably connected, and the limiting strips limit the sliding plate. The side of the cabinet body is provided with an exhaust groove, and the auxiliary box is connected to the inside of the cabinet body through the exhaust groove. The sliding plate is provided with a ventilation groove. When the maintenance door is not opened, the ventilation groove does not correspond to the position of the exhaust groove.

[0013] Preferably, the inner edge of the inspection door is fixedly connected to a mounting base, the end of the connecting rod is fixedly connected to a connecting base, and an auxiliary rod is slidably connected between the connecting base and the mounting base. The connecting base is configured with a turning structure, and the rotation of the inspection door is triggered by the cooperation between the connecting base and the mounting base.

[0014] Preferably, the turbulence mechanism includes a limiting rod, which is fixedly connected inside the auxiliary box and is arranged at equal intervals along the lateral movement trajectory of the first magnetic block. A second magnetic block is slidably connected to the limiting rod.

[0015] Preferably, the second magnetic block and the first magnetic block have the same magnetic force. When the first magnetic block moves laterally, the second magnetic block moves along the limiting rod under the drive of the magnetic force.

[0016] Preferably, a return spring is sleeved on the outer side of the limiting rod. The two ends of the return spring are fixedly connected to the second magnetic block and the inner wall of the auxiliary box, respectively. A baffle is fixedly connected to the lower side of the second magnetic block, and an opening is provided on the lower side of the baffle. The baffle moves synchronously under the drive of the second magnetic block to disturb the inert gas inside the auxiliary box and avoid the deposition of inert gas affecting the exhaust filling efficiency.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) The inspection door is located on the rear side of the cabinet body. At the same time, the inspection door corresponds to the built-in battery components. When a single battery component needs to be repaired, the corresponding electric telescopic rod is activated. Through the retraction of the electric telescopic rod, the output end of the electric telescopic rod drives the connecting rod to move synchronously to the side of the inspection door. The connecting seat at the end of the connecting rod pushes the mounting seat on the inside of the inspection door, so that the inspection door at the corresponding position automatically opens outward at a certain angle. There is no need for maintenance personnel to manually open and close the cabinet door one by one. The target battery component to be repaired can be directly exposed, which is convenient for direct maintenance work.

[0018] (2) When the connecting plate moves with the electric telescopic rod, the first magnetic block and the connecting frame move laterally in sync through the connecting plate, so that the ventilation groove on the slide plate moves to the state corresponding to the exhaust groove. At this time, the inert gas filled in the auxiliary box can be introduced into the corresponding partition of the cabinet body through the exhaust groove and the ventilation groove to dilute the flammable electrolyte vapor leaked in the cabinet, reduce the risk of combustion and explosion during maintenance, and improve the safety of maintenance operations.

[0019] (3) During the lateral movement of the first magnetic block, the position of the first magnetic block gradually moves to the position corresponding to the second magnetic block. Since the second magnetic block and the first magnetic block have the same magnetism, under the action of magnetic repulsion, the second magnetic block will slide along the limit rod and squeeze the reset spring. At the same time, it will drive the baffle plate fixedly connected to the lower side to move synchronously, disturb the inert gas deposited inside the auxiliary box, accelerate the gas flow, ensure that the inert gas can be smoothly and sufficiently discharged into the cabinet body, avoid gas deposition leading to low discharge efficiency, and ensure the effect of inert gas dilution and flame retardancy.

[0020] (4) When the maintenance is completed and the maintenance door is closed, the electric telescopic rod is reset and extended, which drives the first magnetic block to reset. At this time, the first magnetic block is far away from the second magnetic block, and the magnetic repulsion disappears. The second magnetic block is reset under the elastic force of the reset spring, which drives the baffle to move back. At the same time, the ventilation groove and exhaust groove of the slide plate are misaligned, and the inert gas is stopped from being transported, waiting for the next maintenance to be triggered. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a three-dimensional cross-sectional view of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of B; Figure 5 This is a three-dimensional structural diagram of the auxiliary box of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the skateboard of the present invention; Figure 7 This is a three-dimensional structural diagram of the connecting rod of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the first magnetic block of the present invention; Figure 9 This is a three-dimensional structural diagram of the electric telescopic pole of the present invention.

[0022] In the diagram: 1. Cabinet body; 2. Inspection door; 3. Partition; 4. Auxiliary box; 5. Mounting base; 6. Connecting base; 7. Limiting strip; 8. Slide plate; 9. Ventilation slot; 10. Exhaust slot; 11. Fixing box; 12. Connecting rod; 13. Electric telescopic rod; 14. Connecting plate; 15. First magnetic block; 16. Second magnetic block; 17. Limiting rod; 18. Return spring; 19. Baffle; 20. Connecting frame; 21. Auxiliary rod. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: To avoid the need to completely open the energy storage battery cabinet when inspecting the battery components inside the cabinet body 1, which would unnecessarily expose other normal battery components and increase safety hazards, this device uses multiple independent zones and corresponding independent maintenance doors 2, along with an automatic opening and closing trigger mechanism for the maintenance doors 2, to achieve individual opening and maintenance of a single zone. Figure 1 - Figure 3 The present invention provides the following technical solution: an easily maintainable energy storage battery cabinet, wherein a maintenance door 2 is rotatably connected to the rear side of the cabinet body 1, and a partition 3 for placing battery components is fixedly connected inside the cabinet body 1, and the partition 3 and the maintenance door 2 are positioned one-to-one. The starting mechanism includes a fixing box 11, which is fixedly connected to the side of the cabinet body 1 and is located below the partition 3. An electric telescopic rod 13 is fixedly connected inside the fixing box 11, and the output end of the electric telescopic rod 13 is set towards the inside of the cabinet body 1. A mounting seat 5 is fixedly connected to the inner edge of the maintenance door 2, and a connecting seat 6 is fixedly connected to the end of the connecting rod 12. An auxiliary rod 21 is slidably connected between the connecting seat 6 and the mounting seat 5. The connecting seat 6 is set in a turning structure. The rotation trigger of the maintenance door 2 is realized by the cooperation between the connecting seat 6 and the mounting seat 5.

[0025] The battery modules are separated by partition 3, so that each battery module corresponds to an individual inspection door 2. When a single battery module malfunctions and needs repair, simply activate the electric telescopic rod 13 in the corresponding fixed box 11. The electric telescopic rod 13 will retract, and the output end of the electric telescopic rod 13 will drive the connecting plate 14 and the connecting rod 12 to move laterally along the direction of the inspection door 2. When the connecting seat 6 at the end of the connecting rod 12 moves synchronously, it will push the mounting seat 5. Using the sliding cooperation of the auxiliary rod 21 between the mounting seat 5 and the connecting seat 6, the inspection door 2 will rotate around the rear hinge axis, automatically opening the inspection door 2 at the corresponding position to directly expose the battery module that needs repair. This eliminates the need for maintenance personnel to open and close each cabinet door one by one to find the faulty battery, improving the convenience of maintenance.

[0026] Example 2: To prevent flammable electrolyte vapor leaking from inside the cabinet body 1 from igniting and exploding upon contact with an external open flame when the equipment maintenance door 2 is opened during maintenance, this device simultaneously introduces inert gas into the corresponding area inside the cabinet to dilute the flammable vapor when the corresponding maintenance door 2 is triggered to open. Figure 3 - Figure 7 and Figure 9 As shown in Figures 1 and 2, the present invention provides the following technical solution: an easily maintainable energy storage battery cabinet, wherein an auxiliary box 4 is fixedly connected to the side of the cabinet body 1, and the auxiliary box 4 is filled with inert gas. A starting mechanism is provided on the side of the cabinet body 1, which operates synchronously with the opening and closing of the maintenance door 2. When the maintenance door 2 is opened, the inert gas inside the cabinet body 1 is filled. A connecting plate 14 is fixedly connected to the output end of an electric telescopic rod 13, and the outer end of the connecting plate 14 extends to the outside of the fixed box 11. A connecting rod 12 is fixedly connected to the other side of the connecting plate 14, and the connecting rod 12 is located on the side of the fixed box 11. A limit block is provided on the side of the fixed box 11, and the connecting rod 12 passes through the limit block. For stable sliding, a first magnetic block 15 is fixedly connected to the lower part of the connecting plate 14, and a connecting frame 20 is fixedly connected to the lower side of the first magnetic block 15. Both the connecting frame 20 and the first magnetic block 15 are arranged in an "L" shape. At the same time, a sliding plate 8 is fixedly connected to one side of the connecting frame 20. One side of the sliding plate 8 is tightly fitted to the inner wall of the cabinet body 1. Two sets of limiting strips 7 are fixedly connected to the inner wall of the cabinet body 1. The sliding plate 8 is slidably connected to the limiting strips 7. The limiting strips 7 limit the sliding plate 8. An exhaust groove 10 is opened on the side of the cabinet body 1, and the auxiliary box 4 is connected to the inside of the cabinet body 1 through the exhaust groove 10. A ventilation groove 9 is opened on the sliding plate 8. When the inspection door 2 is not opened, the ventilation groove 9 does not correspond to the position of the exhaust groove 10.

[0027] When the electric telescopic rod 13 retracts and moves the connecting plate 14, the connecting plate 14 will simultaneously move the first magnetic block 15 and the connecting frame 20 laterally, thereby causing the slide plate 8 to slide along the trajectory defined by the limit strip 7. This allows the ventilation slot 9 on the slide plate 8 to gradually move to the position corresponding to the exhaust slot 10. At this time, the inert gas pre-stored inside the auxiliary box 4 can be directly discharged into the cabinet body 1 of the corresponding maintenance zone through the exhaust slot 10 and the ventilation slot 9, diluting any flammable electrolyte vapor that may have leaked in the zone. After opening the maintenance door 2, the concentration of flammable gas can be directly reduced, preventing the ignition of flammable gas by electric sparks or static electricity generated during maintenance, thus preventing combustion and explosion accidents and effectively improving the safety of maintenance operations. When maintenance is completed and the maintenance door 2 is closed, the electric telescopic rod 13 returns to its original position and extends, causing the slide plate 8 to return to its original position, allowing the ventilation slot 9 and the exhaust slot 10 to re-close in a staggered manner, stopping the delivery of inert gas, and waiting for the next maintenance trigger.

[0028] Example 3: To further ensure the exhaust efficiency of the inert gas and prevent it from accumulating and depositing inside the auxiliary box 4 for a long time, affecting the smoothness of exhaust and the filling volume, this device uses magnetic linkage to drive the turbulence mechanism to operate synchronously, such as... Figure 6 - Figure 8 The present invention provides the following technical solution: an easily maintainable energy storage battery cabinet, wherein an auxiliary box 4 is provided with a turbulence-inducing mechanism to turbulentize the stored gas. The turbulence-inducing mechanism includes a limit rod 17, which is fixedly connected inside the auxiliary box 4 and is arranged at equal intervals along the lateral movement trajectory of the first magnetic block 15. A second magnetic block 16 is slidably connected to the limit rod 17, and the second magnetic block 16 has the same magnetic force as the first magnetic block 15. When the second magnetic block 16 moves laterally, it moves along the limiting rod 17 under the magnetic drive. A return spring 18 is sleeved on the outside of the limiting rod 17. The two ends of the return spring 18 are fixedly connected to the second magnetic block 16 and the inner wall of the auxiliary box 4, respectively. A baffle 19 is fixedly connected to the lower side of the second magnetic block 16. An opening is provided on the lower side of the baffle 19. The baffle 19 moves synchronously under the drive of the second magnetic block 16 to disturb the inert gas inside the auxiliary box 4 and prevent the inert gas from depositing and affecting the exhaust filling efficiency.

[0029] As the first magnetic block 15 moves laterally with the connecting plate 14, it gradually approaches the second magnetic blocks 16 at various positions. Utilizing the principle of magnetic repulsion, the second magnetic blocks 16 at different positions are pushed to slide along the corresponding limit rods 17. During the sliding process, the second magnetic block 16 compresses the reset spring 18, simultaneously driving the baffle plate 19 fixedly connected to its lower side to move synchronously. When the baffle plate 19 moves, it agitates the inert gas inside the auxiliary box 4, breaking the static deposition of the inert gas, accelerating gas flow, and allowing the inert gas to be discharged more smoothly through the exhaust slot 10. This ensures that a sufficient amount of inert gas can be discharged into the corresponding partition of the cabinet body 1 during a single maintenance process, maintaining a good combustible gas dilution effect, and avoiding insufficient discharge due to gas deposition, which would affect the flame-retardant and explosion-proof function. When the first magnetic block 15 is reset, the magnetic repulsion disappears, and the second magnetic block 16, under the elastic force of the reset spring 18, drives the baffle plate 19 to reset synchronously, waiting for the next magnetic trigger to complete the next baffle operation.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easily maintainable energy storage battery cabinet, comprising a cabinet body (1), wherein a maintenance door (2) is rotatably connected to the rear side of the cabinet body (1), and a partition (3) for placing battery components is fixedly connected inside the cabinet body (1), wherein the partition (3) and the maintenance door (2) are positioned in a one-to-one correspondence, characterized in that, An auxiliary box (4) is fixedly connected to the side of the cabinet body (1), and the inside of the auxiliary box (4) is filled with inert gas. A starting mechanism is provided on the side of the cabinet body (1). The starting mechanism operates synchronously through the opening and closing of the inspection door (2). When the inspection door (2) is opened, the inert gas inside the cabinet body (1) is filled. A turbulence mechanism is provided inside the auxiliary box (4) to turbulent the stored gas.

2. The easily maintainable energy storage battery cabinet according to claim 1, characterized in that: The starting mechanism includes a fixed box (11), which is fixedly connected to the side of the cabinet body (1) and located below the partition (3). An electric telescopic rod (13) is fixedly connected inside the fixed box (11), and the output end of the electric telescopic rod (13) is set towards the inside of the cabinet body (1).

3. The easily maintainable energy storage battery cabinet according to claim 2, characterized in that: The output end of the electric telescopic rod (13) is fixedly connected to a connecting plate (14), and the outer end of the connecting plate (14) extends to the outside of the fixed box (11). A connecting rod (12) is fixedly connected to the other side of the connecting plate (14). The connecting rod (12) is located on the side of the fixed box (11), and a limit block is provided on the side of the fixed box (11). The connecting rod (12) slides stably through the limit block.

4. The easily maintainable energy storage battery cabinet according to claim 3, characterized in that: A first magnetic block (15) is fixedly connected to the bottom of the connecting plate (14), and a connecting frame (20) is fixedly connected to the lower side of the first magnetic block (15). Both the connecting frame (20) and the first magnetic block (15) are arranged in an "L" shape. Meanwhile, a sliding plate (8) is fixedly connected to one side of the connecting frame (20).

5. The easily maintainable energy storage battery cabinet according to claim 4, characterized in that: The slide plate (8) is tightly fitted to the inner wall of the cabinet body (1) on one side, and two sets of limiting strips (7) are fixedly connected to the inner wall of the cabinet body (1). The slide plate (8) and the limiting strips (7) are slidably connected. The limiting strips (7) limit the slide plate (8). The side of the cabinet body (1) is provided with an exhaust groove (10), and the auxiliary box (4) is connected to the inside of the cabinet body (1) through the exhaust groove (10). The slide plate (8) is provided with a ventilation groove (9). When the inspection door (2) is not open, the ventilation groove (9) does not correspond to the position of the exhaust groove (10).

6. The easily maintainable energy storage battery cabinet according to claim 5, characterized in that: The inner edge of the inspection door (2) is fixedly connected to a mounting base (5), and the end of the connecting rod (12) is fixedly connected to a connecting base (6). An auxiliary rod (21) is slidably connected between the connecting base (6) and the mounting base (5). The connecting base (6) is set in a turning structure. The rotation trigger of the inspection door (2) is realized by the cooperation between the connecting base (6) and the mounting base (5).

7. The easily maintainable energy storage battery cabinet according to claim 6, characterized in that: The turbulence mechanism includes a limiting rod (17), which is fixedly connected inside the auxiliary box (4). The limiting rod (17) is arranged at equal intervals along the lateral movement trajectory of the first magnetic block (15), and a second magnetic block (16) is slidably connected to the limiting rod (17).

8. The easily maintainable energy storage battery cabinet according to claim 8, characterized in that: The second magnetic block (16) and the first magnetic block (15) have the same magnetic force. When the first magnetic block (15) moves laterally, the second magnetic block (16) moves along the limiting rod (17) under the drive of the magnetic force.

9. The easily maintainable energy storage battery cabinet according to claim 1, characterized in that: A reset spring (18) is sleeved on the outside of the limiting rod (17). The two ends of the reset spring (18) are fixedly connected to the inner wall of the second magnetic block (16) and the auxiliary box (4), respectively. A baffle plate (19) is fixedly connected to the lower side of the second magnetic block (16), and an opening is provided on the lower side of the baffle plate (19). The baffle plate (19) moves synchronously under the drive of the second magnetic block (16) to disturb the inert gas inside the auxiliary box (4) and avoid the deposition of inert gas affecting the exhaust filling efficiency.

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