High-safety liquid-cooled energy storage equipment and energy storage system

Abstract

The utility model relates to the technical field of energy storage devices, in particular to high-safety liquid-cooled energy storage equipment and an energy storage system, and the high-safety liquid-cooled energy storage equipment comprises a cabinet body which is internally provided with a plurality of installation cavities used for installing battery modules from top to bottom; the temperature control assembly is arranged in the cabinet body, the temperature control assembly is provided with a plurality of groups of connecting pipes which are arranged along the vertical direction, and the connecting pipes are connected with the battery modules; and the fire extinguishing assembly is installed in the cabinet body, and the fire extinguishing assembly can execute a spraying fire extinguishing action on the on-fire battery module when one or more battery modules are on fire, so that the operation stability of the battery modules is improved, and the situation that the whole energy storage equipment is burnt out due to the fact that a single battery module is out of control and on fire is avoided.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, specifically a highly safe liquid-cooled energy storage device and energy storage system. Background Technology

[0002] With the rapid development of technology, battery energy storage systems have become an indispensable part of our daily lives and work. From mobile phones and electric vehicles to large-scale grid energy storage, the application of battery energy storage systems is becoming increasingly widespread.

[0003] Given the limited energy density of batteries, in order to improve the energy storage efficiency, most existing battery energy storage systems are composed of multiple battery modules connected in series or in parallel, and controlled by a professional thermal management system to avoid overheating of a single battery module, which would cause the entire battery energy storage system to malfunction, and to make the entire battery energy storage system work more consistently.

[0004] In practical applications, it has been found that when the thermal management system fails, the battery modules are at risk of catching fire. To address this, existing battery energy storage systems are generally equipped with fire suppression systems. However, these systems only target the entire battery energy storage system and have limited fire suppression capabilities. This means that when one battery module catches fire due to thermal runaway, the other normally functioning battery modules are at risk of being ignited. This phenomenon is highly likely to occur, leading to increased destructive power and property damage caused by a single battery module fire. Utility Model Content

[0005] The purpose of this invention is to provide a highly safe liquid-cooled energy storage device and energy storage system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A highly secure liquid-cooled energy storage device, comprising:

[0008] The cabinet has multiple mounting chambers for installing battery modules arranged from top to bottom.

[0009] A temperature control component is installed inside the cabinet. The temperature control component is provided with multiple sets of connecting pipes arranged in a vertical direction, and the connecting pipes are connected to the battery module.

[0010] A fire extinguishing component is installed inside the cabinet. The fire extinguishing component is capable of spraying fire extinguishing action on the burning battery modules when one or more of the battery modules catch fire.

[0011] As a further embodiment of this utility model: the cabinet includes an outer shell and an inner frame. The outer shell is assembled from a base, side panels, a top panel and a front door panel. The side panels, top panel and front door panel are detachably connected to the inner frame.

[0012] The base is perpendicular to the side panel and parallel to the top panel, and the front door panel is rotatably mounted on the side panel.

[0013] As a further improvement of this utility model: the inner frame is provided with multiple sets of detachable horizontal and vertical frames, and the ends of the horizontal frames are provided with lifting lugs.

[0014] As a further improvement of this utility model: the inner frame is provided with a plurality of support seats arranged in the vertical direction, and the support seats are detachably connected to the battery module;

[0015] The inner frame also contains a first mounting plate, which is connected to the temperature control component.

[0016] As a further embodiment of this utility model: the temperature control component includes a liquid cooling integrated machine that is detachably connected to the first mounting plate. The liquid cooling integrated machine is provided with a liquid coolant input pipe and a liquid coolant return pipe. The liquid coolant input pipe and the liquid coolant return pipe are provided with multiple sets of connecting pipes at equal intervals along the length direction.

[0017] After the coolant is pumped out by the integrated coolant cooling machine, it can flow into the battery module through the coolant inlet pipe and connecting pipe, and then flow back into the integrated coolant cooling machine through the connecting pipe and coolant return pipe.

[0018] As a further improvement of this utility model: a second mounting plate is also provided inside the inner frame, and the second mounting plate is connected to the fire extinguishing component;

[0019] The fire extinguishing assembly includes a fire extinguishing device detachably connected to the second mounting plate. The fire extinguishing device is connected to a fire-fighting pipeline, and the fire-fighting pipeline is provided with fire-fighting sprinkler heads and connecting lines at equal intervals along its length.

[0020] As a further improvement of this utility model: the connecting line is connected to a smoke sensor, which is used to control the opening and closing of the fire extinguishing sprinkler head.

[0021] An energy storage system, including the aforementioned high-safety liquid-cooled energy storage device, further includes:

[0022] The third, fourth, and fifth mounting plates are installed within the inner frame. A control box is mounted on the third mounting plate, an energy storage converter is mounted on the fourth mounting plate, and a UPS power supply is mounted on the fifth mounting plate.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] The cabinet design enhances the protection of the inner frame and improves its structural stability when subjected to minor impacts. The removable outer shell allows for easy replacement, preventing the need to replace the entire cabinet due to shell damage and reducing operating costs. Furthermore, the inner frame is constrained by multiple sets of horizontal and vertical frames, resulting in stronger lateral and longitudinal stability and improved structural strength. When the battery module is connected to the support base, it provides enhanced shock resistance, improving the stability of the battery module's operating environment.

[0025] The temperature control and fire extinguishing components effectively cool the battery modules, maintaining them at a suitable operating temperature. This prevents thermal runaway caused by high temperatures, which could lead to fires, explosions, or other accidents. In the event of a fire in a single or multiple battery modules simultaneously, the system can promptly extinguish the fire to prevent it from spreading and igniting other battery modules under normal operating conditions, thus reducing the destructive power and property damage from the fire. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of one embodiment of a highly safe liquid-cooled energy storage device.

[0027] Figure 2 This is a structural schematic diagram from another angle of one embodiment of a highly safe liquid-cooled energy storage device.

[0028] Figure 3 This is a schematic diagram of the internal frame in one embodiment of a highly safe liquid-cooled energy storage device.

[0029] Figure 4 This is a schematic diagram of the temperature control component in one embodiment of a highly safe liquid-cooled energy storage device.

[0030] Figure 5 This is a schematic diagram of the fire extinguishing component in one embodiment of a highly safe liquid-cooled energy storage device.

[0031] Figure 6 This is a schematic diagram of the control box in one embodiment of a highly secure liquid-cooled energy storage device.

[0032] Figure 7 This is a schematic diagram of the energy storage converter in one embodiment of a highly safe liquid-cooled energy storage device.

[0033] In the diagram: 1. Base; 2. Side panel; 3. Top panel; 4. Indicator light; 5. Emergency stop switch; 6. Door handle; 7. Horizontal frame; 8. Vertical frame; 9. Fixing seat; 10. Lifting lug connector; 11. Front door panel; 12. Support seat; 13. First mounting plate; 14. Liquid-cooled integrated unit; 15. Liquid coolant inlet pipe; 16. Connecting pipe; 17. Liquid coolant return pipe; 18. Fire extinguishing device; 19. Fire piping; 20. Fire sprinkler head; 21. Connecting wire; 22. Sub-control box; 23. Energy storage converter; 24. UPS power supply; 25. Second mounting plate; 26. Third mounting plate; 27. Fourth mounting plate; 28. Fifth mounting plate; 29. ​​Battery module; 30. Inner frame. Detailed Implementation

[0034] 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.

[0035] Furthermore, the elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Please see Figures 1-5 In this embodiment of the present invention, a highly safe liquid-cooled energy storage device includes: a cabinet, a temperature control component, and a fire extinguishing component.

[0037] The cabinet is provided with multiple mounting chambers for installing battery modules 29 from top to bottom;

[0038] The cabinet includes an outer shell and an inner frame 30. The outer shell is assembled from a base 1, a side panel 2, a top panel 3 and a front door panel 11. A door handle 6 is provided on the side panel 2. The side panel 2, the top panel 3 and the front door panel 11 are detachably connected to the inner frame 30. For example, the detachable connection includes the use of bolts and nuts or buckles.

[0039] Furthermore, the housing is also equipped with an indicator light 4 and an emergency stop switch 5. The indicator light 4 allows technicians to accurately determine the non-working state of the battery module 29, and the emergency stop switch 5 can stop the battery module 29 from working in an emergency to prevent the emergency from worsening.

[0040] The base 1 is perpendicular to the side panel 2 and parallel to the top panel 3. The front door panel 11 is rotatably mounted on the side panel 2. The base 1 is also provided with a fixing seat 9. The fixing seat 9 can establish a connection between the base 1 and the ground, thereby improving the overall stability of the cabinet, avoiding the risk of the cabinet structure overturning, and enabling the entire cabinet to adapt to different installation environments.

[0041] The inner frame 30 is provided with multiple sets of detachable horizontal frames 7 and vertical frames 8. The horizontal frames 7 and vertical frames 8 can improve the lateral and longitudinal stability of the inner frame 30, giving the inner frame 30 better strength and seismic resistance. The ends of the horizontal frames 7 are provided with lifting lug connecting seats 10. By connecting the lifting lugs with the lifting lug connecting seats 10, the cabinet can be hoisted more conveniently, making transportation and installation more convenient.

[0042] The temperature control component is installed inside the cabinet. The temperature control component is provided with multiple sets of connecting pipes 16 arranged in the vertical direction. The connecting pipes 16 are connected to the battery module 29.

[0043] The inner frame 30 is provided with multiple sets of support seats 12 arranged in the vertical direction, and the support seats 12 are detachably connected to the battery module 29.

[0044] In this embodiment, by providing an outer shell outside the inner frame 30, the protective effect of the inner frame 30 can be improved, the structural stability of the inner frame 30 when subjected to minor collisions can be enhanced, and the outer shell adopts a detachable installation method, making it easier to replace the outer shell and avoiding the phenomenon that the entire cabinet needs to be replaced due to damage to the outer shell, thus reducing the cost of use. At the same time, the inner frame 30 is constrained by multiple sets of horizontal frames 7 and vertical frames 8, which makes the lateral and longitudinal stability of the inner frame 30 stronger, improves the structural strength of the inner frame 30, and when the battery module 29 is connected to the support base 12, the battery module 29 can have a stronger shock resistance effect, improving the stability of the operating environment of the battery module 29.

[0045] Please see Figure 1 , Figure 4The inner frame 30 is also provided with a first mounting plate 13, which is connected to the temperature control component. The temperature control component includes a liquid cooling integrated machine 14 that is detachably connected to the first mounting plate 13. The liquid cooling integrated machine 14 is provided with a liquid coolant inlet pipe 15 and a liquid coolant return pipe 17. The liquid coolant inlet pipe 15 and the liquid coolant return pipe 17 are provided with multiple sets of connecting pipes 16 at equal intervals along the length direction.

[0046] When the coolant is pumped out by the integrated coolant cooler 14, it can flow into the battery module 29 through the coolant inlet pipe 15 and the connecting pipe 16, and then flow back into the integrated coolant cooler 14 through the connecting pipe 16 and the coolant return pipe 17.

[0047] During use, the liquid cooling unit 14 can pump out the coolant inside, which can then enter the battery module 29 through the liquid coolant inlet pipe 15 and connecting pipe 16. The coolant exchanges heat with the high temperature generated inside the battery module 29, which will reduce the temperature inside the battery module 29, improve the stability of the battery module 29 operation, and prevent the battery module 29 from catching fire or exploding due to thermal runaway.

[0048] After the coolant enters the battery module 29 and completes heat exchange, the coolant can flow back to the liquid cooling unit 14 through the connecting pipe 16 and the liquid coolant return pipe 17 on the other side of the battery module 29 to realize the recovery of the coolant. Under the continuous pumping of the liquid cooling unit 14, the coolant can be circulated and pumped, so that the coolant can flow into the battery module 29 continuously, and then flow back into the liquid cooling unit 14 after completing heat exchange, so that the coolant can be recycled.

[0049] It should be noted that after the coolant enters the battery module 29, it flows along the cooling pipes that are attached to the battery module 29.

[0050] The above settings can effectively cool down the battery module 29, enabling it to maintain a suitable operating temperature and preventing thermal runaway caused by high temperature, which could lead to accidents such as fire or explosion.

[0051] Please see Figure 1 , Figure 5 The fire extinguishing component is installed inside the cabinet. When one or more of the battery modules 29 catch fire, the fire extinguishing component can perform a spray fire extinguishing action on the burning battery modules 29.

[0052] The inner frame 30 is also provided with a second mounting plate 25, which is connected to the fire extinguishing assembly.

[0053] The fire extinguishing assembly includes a fire extinguishing device 18 detachably connected to the second mounting plate 25. The fire extinguishing device 18 is connected to a fire-fighting pipeline 19. The fire-fighting pipeline 19 is provided with fire-fighting sprinkler heads 20 and connecting lines 21 at equal intervals along its length. The connecting lines 21 are connected to a smoke sensor, which can control the opening and closing of the fire-fighting sprinkler heads 20.

[0054] During use, a smoke sensor is connected to the end of the connecting line 21 away from the fire sprinkler head 20. The smoke sensor can detect whether there is smoke generated by the combustion of the battery module 29 in the installation chamber at the corresponding height, and control the opening and closing of the fire sprinkler head 20 according to the detection structure. Specifically, when the battery module 29 in a certain installation chamber burns and generates smoke, the smoke sensor controls the fire sprinkler head 20 at the corresponding height to open through the connecting line 21. At this time, the fire sprinkler head 20 can pump fire extinguishing agent towards the installation chamber at the corresponding height, thereby controlling the fire and preventing a fire in one installation chamber from affecting the normal operation of the battery modules 29 in other installation chambers. This can ensure the stable operation of the battery modules 29 under normal working conditions, and can also prevent the combustion of one group of battery modules 29 from causing the other battery modules 29 to catch fire. This reduces the damage caused by the combustion of one group of battery modules 29 and the resulting fire of the other battery modules 29, effectively reducing the property damage caused by the fire of a single battery module 29.

[0055] The above settings enable timely extinguishing of fires in single or multiple battery modules 29, preventing the fire from spreading and causing fires in battery modules 29 under normal operating conditions, thereby reducing the destructive power and property damage caused by fires in battery modules 29.

[0056] Please see Figures 6-7 As one embodiment of this utility model, an energy storage system is also proposed, including the aforementioned high-safety liquid-cooled energy storage device, and further comprising:

[0057] The third mounting plate 26, the fourth mounting plate 27, and the fifth mounting plate 28 are arranged within the inner frame 30. The third mounting plate 26 is equipped with a control box 22, the fourth mounting plate 27 is equipped with an energy storage converter 23, and the fifth mounting plate 28 is equipped with a UPS power supply 24.

[0058] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A highly safe liquid-cooled energy storage device, characterized in that, include: The cabinet has multiple mounting chambers for installing battery modules (29) arranged from top to bottom. A temperature control component is installed inside the cabinet. The temperature control component has multiple sets of vertically arranged connecting pipes (16), which are connected to the battery module (29). A fire extinguishing component is installed inside the cabinet. The fire extinguishing component is capable of spraying fire extinguishing action on the burning battery module (29) when one or more of the battery modules (29) catch fire.

2. The high-safety liquid-cooled energy storage device according to claim 1, characterized in that, The cabinet includes an outer shell and an inner frame (30); the outer shell is assembled from a base (1), side panels (2), a top panel (3) and a front door panel (11), and the side panels (2), top panel (3) and front door panel (11) are detachably connected to the inner frame (30); The base (1) is perpendicular to the side plate (2) and parallel to the top plate (3), and the front door panel (11) is rotatably mounted on the side plate (2).

3. The high-safety liquid-cooled energy storage device according to claim 2, characterized in that, The inner frame (30) is provided with multiple sets of detachable horizontal frames (7) and vertical frames (8), and the ends of the horizontal frames (7) are provided with lifting lugs (10).

4. A high-safety liquid-cooled energy storage device according to claim 2, characterized in that, The inner frame (30) is provided with multiple sets of support seats (12) arranged in the vertical direction, and the support seats (12) are detachably connected to the battery module (29); The inner frame (30) is also provided with a first mounting plate (13), which is connected to the temperature control component.

5. A highly secure liquid-cooled energy storage device according to claim 4, characterized in that, The temperature control component includes a liquid cooling unit (14) detachably connected to the first mounting plate (13). The liquid cooling unit (14) is provided with a liquid coolant inlet pipe (15) and a liquid coolant return pipe (17). The liquid coolant inlet pipe (15) and the liquid coolant return pipe (17) are provided with multiple sets of connecting pipes (16) at equal intervals along the length direction. When the coolant is pumped out by the integrated cooler (14), it can flow into the battery module (29) through the coolant inlet pipe (15) and the connecting pipe (16), and then flow back into the integrated cooler (14) through the connecting pipe (16) and the coolant return pipe (17).

6. A high-safety liquid-cooled energy storage device according to claim 2, characterized in that, The inner frame (30) is also provided with a second mounting plate (25), which is connected to the fire extinguishing assembly; The fire extinguishing assembly includes a fire extinguishing device (18) detachably connected to the second mounting plate (25). The fire extinguishing device (18) is connected to a fire-fighting pipeline (19). The fire-fighting pipeline (19) is provided with fire-fighting sprinkler heads (20) and connecting lines (21) at equal intervals along its length.

7. A high-safety liquid-cooled energy storage device according to claim 6, characterized in that, The connecting line (21) is connected to a smoke sensor, which is used to control the opening and closing of the fire extinguishing sprinkler head (20).

8. An energy storage system, characterized in that, Including the highly secure liquid-cooled energy storage device as described in any one of claims 1-7, further comprising: The third mounting plate (26), the fourth mounting plate (27) and the fifth mounting plate (28) are installed in the inner frame (30). The third mounting plate (26) is equipped with a control box (22), the fourth mounting plate (27) is equipped with an energy storage converter (23), and the fifth mounting plate (28) is equipped with a UPS power supply (24).

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