A combined modular mobile energy storage device

Abstract

The present application relates to the technical field of energy storage battery, in particular to a combined modular mobile energy storage device, comprising: a modular mobile box, a front end plate and a rear end plate, which are connected by an assembly to form a basic unit; a corner connecting box is arranged between adjacent mobile boxes to realize multidirectional expansion; a water-cooled battery rack is arranged in the mobile box, which comprises a water pipe type bottom support with a cooling flow channel, and a battery cavity is formed between the bottom supports; a modular top pipe is arranged at the top of the mobile box, and a modular bottom pipe is arranged at the bottom of the mobile box; a liquid inlet pipe in the box is connected to one end of the top pipe and the bottom support, and a liquid outlet pipe in the box is connected to the other end of the bottom pipe and the bottom support; the front end plate is provided with a pump box containing an industrial pump and a circulating water tank, the circulating water tank is connected to the top pipe of the first mobile box through a liquid supply pipe and connected to the bottom pipe of the first mobile box through a liquid return pipe to form a circulating path; the connecting box comprises: a partition plate arranged on the side of the front mobile box to block heat transfer; and a fan group and an assembled cooling mechanism. The present application can improve the application flexibility of the energy storage device.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery technology, specifically a combined modular mobile energy storage device. Background Technology

[0002] With the rapid development of renewable energy and the increasing demand for flexible energy storage in power systems, mobile energy storage devices are playing a vital role in peak shaving, emergency power supply, and off-grid applications. Containerized energy storage devices, due to their standardized characteristics, have been widely used in the power energy storage field in recent years. This design, which integrates battery systems, thermal management systems, and control systems within a standard container, facilitates transportation and rapid deployment, making it particularly suitable for temporary power backup, power supply in remote areas, and industrial and commercial energy storage scenarios.

[0003] However, existing containerized energy storage devices still face many problems in practical applications. First, although the standard container structure facilitates transportation, it is difficult to make flexible adjustments in sites with limited space or requiring special orientation due to its fixed size and rigid layout. Second, when multiple containers are connected in series for expansion, traditional heat dissipation solutions are difficult to control the temperature distribution of the entire system evenly. The far-end containers often experience local overheating due to decreased cooling efficiency, which affects system safety and battery life. Summary of the Invention

[0004] The purpose of this invention is to provide a combined modular mobile energy storage device to improve the application flexibility of energy storage devices and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a combined modular mobile energy storage device, comprising:

[0006] The modular mobile box, front panel, and rear panel are connected by assembly components to form a basic unit;

[0007] The connecting box for corners is placed between adjacent movable boxes to enable multi-directional expansion;

[0008] The mobile box is equipped with a water-cooled battery rack, including a water pipe-type base with cooling channels, and the base forms a battery cavity.

[0009] The mobile box is equipped with a modular top tube at the top and a modular bottom tube at the bottom. The liquid inlet pipe inside the box connects the top tube to one end of the bottom support, and the liquid outlet pipe inside the box connects the bottom tube to the other end of the bottom support.

[0010] The front end plate is equipped with a pump box, which contains an industrial pump and a circulating water tank. The circulating water tank is connected to the top pipe of the first moving tank through a liquid supply pipe and to the bottom pipe of the first moving tank through a liquid return pipe, forming a circulation path.

[0011] The connector box includes:

[0012] A partition is installed on the front side of the movable box to block heat transfer;

[0013] The fan unit and the prefabricated cooling mechanism include a serpentine cooling pipe with heat sinks, and the cooling pipe is equipped with a combination joint at both ends;

[0014] The upper and lower connecting pipes are respectively connected to the top and bottom pipes of the adjacent mobile boxes; the upper connecting pipe is connected to the reserved inlet pipe, and the lower connecting pipe is connected to the reserved outlet pipe, with reserved joints at both ends;

[0015] The combination joint and the reserved joint are fixed by threaded fittings, and the internal elastic conical plug sealing structure achieves double leakage prevention.

[0016] Preferably, the cooling mechanism includes a bracket, which is fixed by a mounting base inside the connecting box;

[0017] The mounting base is equipped with a slot, and a slide is movably mounted on both sides of the slot via spring guides. A baffle and a side support plate are fixed on the slide. The baffle is used to limit the bottom of the bracket, and the side support plate is used to support the two sides of the bracket.

[0018] Preferably, the cooling pipe is installed inside the bracket, and the heat sink is set on the outer wall of the cooling pipe to enhance the heat dissipation efficiency, and the cooling pipe is located on the air outlet duct of the fan unit.

[0019] Preferably, the elastic conical plug sealing structure includes a support, an elastic element, a conical plug, and a ring sleeve;

[0020] The support is installed in the combination joint and the reserved joint. The conical plug is connected to the support through the elastic element, and the conical plug is set through the ring sleeve.

[0021] When mated, the conical plugs abut against each other and retract to form a flow gap; when not mated, the elastic element pushes the conical plug sealing ring.

[0022] Preferably, both ends of the upper and lower connecting pipes of the connecting box are equipped with control valves to control the flow of coolant.

[0023] Preferably, the assembly is a bolted assembly, and the modular mobile box, front plate, rear plate and connecting box are detachably connected by bolted assemblies.

[0024] Preferably, control valves are installed at both ends of the top and bottom pipes of the mobile box to control the flow of coolant and prevent coolant leakage during disassembly.

[0025] Preferably, the pump box on the front end plate is provided with a replenishment port, which is connected to the circulating water tank for replenishing coolant.

[0026] Preferably, the rear panel is provided with a heat dissipation slot, which is a reserved air outlet for the fan unit.

[0027] Preferably, the connecting box is provided with an air inlet slot for introducing external air into the fan unit.

[0028] Preferably, the connecting box can be modularly angled and customized to guide the rear moving box to connect with the front moving box in a 0-90 degree direction.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. Through the modular design of the mobile box and the multi-angle connection box, the energy storage device can be flexibly combined and expanded under space-constrained conditions. When necessary, the capacity of the energy storage device can be freely increased to meet the usage requirements. At the same time, its layout can be freely adjusted according to the actual site requirements.

[0031] 2. This invention employs a hybrid heat dissipation system combining water cooling and air cooling. The water cooling component forms a complete circulating cooling network through modularly designed inlet pipes, outlet pipes, top pipes, and bottom pipes, ensuring that the battery packs in each mobile box receive uniform and effective cooling. Simultaneously, it connects to the fan unit and serpentine cooling pipes installed inside the box to form an auxiliary air cooling system, specifically providing supplementary heat dissipation for the remote mobile boxes far from the circulating pump, effectively solving the problem of reduced heat dissipation efficiency at the remote end in traditional series cooling systems.

[0032] 3. The cooling pipe connection system adopts a double sealing design. Through the combination of external threaded fittings and internal conical plug elastic sealing structure, the pipe connection is guaranteed to be firm and reliable leak-proof performance is achieved. The connecting box partition design effectively blocks heat transfer between the front and rear moving boxes, realizing independent temperature control of battery packs in different areas.

[0033] 4. The present invention enables the cooling mechanism to be quickly installed and fixed through the design of the mounting base structure's slots, baffles, and side support plates, which greatly improves the maintainability of the system. The overall design of the energy storage device fully considers various working conditions in actual applications, and while ensuring the reliability of the system, it significantly improves the adaptability, heat dissipation efficiency, and maintenance convenience of the energy storage device. Attached Figure Description

[0034] Figure 1 This is a first schematic diagram of the additional state of the energy storage device of the present invention.

[0035] Figure 2 This is a second schematic diagram of the energy storage device of the present invention in an additional state.

[0036] Figure 3 This is a schematic diagram of the bottom of the energy storage device of the present invention.

[0037] Figure 4 This is a schematic diagram of the basic state of the energy storage device of the present invention.

[0038] Figure 5 This is a schematic diagram of the movable box structure of the present invention.

[0039] Figure 6 This is a schematic diagram of the battery rack structure of the present invention.

[0040] Figure 7 This is a first schematic diagram of the connecting box structure of the present invention.

[0041] Figure 8 This is a second schematic diagram of the connecting box structure of the present invention.

[0042] Figure 9 This is a schematic diagram of the installation of the cooling pipe structure of the present invention.

[0043] Figure 10 This is a schematic diagram of the assembly base structure of the present invention.

[0044] Figure 11 This is a schematic diagram of the connector connection state of the present invention.

[0045] In the diagram: 1. Moving box; 2. Front end plate; 3. Rear end plate; 4. Connecting box; 5. Assembly component; 6. Battery rack; 7. Inlet pipe; 8. Outlet pipe; 9. Top pipe; 10. Bottom pipe; 11. Control valve; 12. Pump box; 13. Supply pipe; 14. Return pipe; 15. Replenishment port; 16. Heat dissipation slot; 17. Air inlet slot; 18. Partition plate; 19. Fan unit; 20. Upper pipe; 21. Lower pipe; 22. Reserved inlet pipe; 23. Reserved outlet pipe; 24. Reserved connector; 25. Assembly base; 26. Slot; 27. Spring guide seat; 28. Slide seat; 29. ​​Baffle; 30. Side support plate; 31. Bracket; 32. Cooling pipe; 33. Heat sink; 34. Combination connector; 35. Threaded fitting; 36. Support piece; 37. Elastic element; 38. Conical plug; 39. Ring sleeve. Detailed Implementation

[0046] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1 to 11 The present invention provides a technical solution: a combined modular mobile energy storage device, which has a container structure, wherein energy storage battery packs can be loaded, and the energy storage device can be moved according to the actual application location.

[0048] The energy storage device adopts a modular structure, typically consisting of a mobile box 1, a front-end plate 2, and a rear-end plate 3. The mobile box 1 houses the energy storage batteries, while the rear-end plate 3 is configured according to energy storage requirements. Figure 4 As shown, multiple mobile boxes 1 can be interconnected to accommodate sufficient energy storage batteries, especially when space is limited for the energy storage device. Figures 1-3 As shown, a connecting box 4 can be set between two mobile boxes 1. The connecting box 4 can be designed with different corners to supplement the mobile boxes 1 in different directions, thereby increasing the overall capacity of the energy storage device. The front plate 2 and the rear plate 3 can be combined to encapsulate the front and rear sides of the mobile boxes 1. Assembly parts 5 are provided on the mobile boxes 1, the front plate 2, the rear plate 3 and the connecting box 4. The assembly parts 5 can be connected by bolts to achieve the effect of fixing the entire energy storage device.

[0049] like Figure 5 , Figure 6 As shown, the mobile box 1 is equipped with a battery rack 6, which is a water-cooled support frame consisting of uprights and water pipe-type base supports. The water pipe-type base supports are arranged in a manner that forms a battery cavity between adjacent base supports for loading the energy storage batteries. Coolant can flow within the base supports to absorb heat from the batteries, thereby controlling the temperature inside the energy storage device and ensuring the normal operation of the energy storage batteries. An inlet pipe 7 and an outlet pipe 8 are vertically installed in the mobile box 1. The two ends of the water pipe-type base supports are connected to the inlet pipe 7 and the outlet pipe 8 respectively, allowing coolant to circulate within them. The top of the mobile box 1 is equipped with a modular top pipe 9, and the bottom is equipped with a modular bottom pipe 10. The liquid inlet pipe 7 is connected to the top pipe 9, and the liquid outlet pipe 8 is connected to the bottom pipe 10. When adjacent mobile boxes 1 are combined, their top pipes 9 can be connected to each other, and their bottom pipes 10 can also be connected to each other, thus forming a liquid supply and recovery channel. Furthermore, control valves 11 are installed at both ends of the top pipe 9 and the bottom pipe 10 to ensure that the coolant remaining in the pipes will not flow out uncontrollably after the mobile box 1 is disassembled, thus controlling the flow of coolant.

[0050] like Figures 1-6As shown, a pump box 12 is fixedly connected to the front end plate 2. The pump box 12 is equipped with an industrial pump and a matching circulating water tank. The circulating water tank is connected to a supply pipe 13 and a return pipe 14. The supply pipe 13 can be connected to the top pipe 9 on the movable box 1 near the front end plate 2, and the return pipe 14 can be connected to the bottom pipe 10 on the movable box 1 near the front end plate 2. This makes the circulating water tank, top pipe 9, inlet pipe 7, water pipe base, outlet pipe 8, and bottom pipe 10 form a circulation path. The industrial pump pressurizes and delivers the coolant to circulate and absorb and discharge heat. At the same time, the pump box 12 is also equipped with a replenishment port 15 for the circulating water tank. After the movable box 1 is replenished according to the energy storage needs, the coolant can be replenished through the replenishment port 15 to ensure sufficient circulation of coolant. In addition, when the pressurization capacity of the industrial pump is insufficient, it can be replaced to meet the circulation requirements.

[0051] like Figures 3-8 As shown, the rear plate 3 of the present invention is provided with a heat dissipation groove 16, which can reserve an air outlet for the air-cooled structure. In addition to serving as a turning connection, the connecting box 4 can also serve as a separator and air-cooling function. Considering that the water cooling effect in the rear movable box 1 decreases with the increase of distance, the air-cooling component in the connecting box 4 can assist in heat dissipation. The connecting box 4 usually has various models, which guide the movable box 1 at the rear of the connecting box 4 to the movable box 1 at the front to make a 0-90 degree connection.

[0052] The connecting box 4 is provided with an air inlet slot 17, and a partition 18 is provided on the side of the connecting box 4 facing the front moving box 1. The partition 18 serves to prevent the heat of the front moving box 1 from entering the rear through the connecting box 4. A cooling mechanism is provided on the side of the connecting box 4 facing the rear moving box 1 for auxiliary heat dissipation of the rear moving box 1.

[0053] like Figures 6-9 As shown, a fan unit 19 is installed in the connecting box 4. The top of the connecting box 4 is provided with an upper pipe 20 and the bottom with a lower pipe 21. The upper pipe 20 can be connected between two top pipes 9, and the lower pipe 21 can be connected between two bottom pipes 10, thus connecting to the water cooling passage. Both ends of the upper pipe 20 and the lower pipe 21 are also provided with control valves 11 for control. At the same time, a reserved inlet pipe 22 is connected to the upper pipe 20, and a reserved outlet pipe 23 is connected to the lower pipe 21. The reserved inlet pipe 22 and the reserved outlet pipe 23 are inserted into the connecting box 4, and the ends of the reserved inlet pipe 22 and the reserved outlet pipe 23 are provided with reserved connectors 24 for the assembly and connection of the cooling mechanism, further improving the auxiliary heat dissipation effect of the fan unit 19.

[0054] like Figures 8-11As shown, the cooling mechanism includes a bracket 31, in which a serpentine cooling pipe 32 is fixedly installed. Heat sinks 33 are provided on the outer wall of the cooling pipe 32. Both ends of the cooling pipe 32 are equipped with combination joints 34. The cooling pipe 32 is connected to the circulation path through the connection of the combination joints 34 and the reserved joints 24, so that the cooling pipe 32 containing coolant is located at the air outlet of the fan unit 19, so that the airflow generated by the fan unit 19 can more effectively dissipate heat from the energy storage battery. External threads are provided on the outer walls of the combination joints 34 and the reserved joints 24. Threaded fittings 35 are used to connect the combination joints 34 and the reserved joints 24. The combination of threads achieves the effect of fixing and external leakage prevention.

[0055] like Figures 7-11 As shown, the cooling mechanism is fixed by the mounting base 25 in the connecting box 4. The mounting base 25 is provided with a slot 26, and slides 28 are movably installed on both sides of the slot 26 through spring guide seats 27. A baffle 29 is fixedly installed on the slide 28. The baffle 29 can cover the slot 26. After the bottom of the bracket 31 is inserted into the slot 26, the bracket 31 can be limited and fixed by the baffle 29. At the same time, a side support plate 30 is also installed on the slide 28. The side support plate 30 can act on both sides of the bracket 31 to provide lateral support for the bracket 31, further improving the installation stability of the cooling pipe 32.

[0056] To prevent accidental leakage of coolant in the cooling pipe 32, in addition to external leak prevention via the threaded fitting 35, the combination joint 34 and the reserved joint 24 are also equipped with an openable and closable inner plug structure. This inner plug structure can automatically open when the combination joint 34 and the reserved joint 24 are mated together. The inner plug structure includes a support member 36 installed in the combination joint 34 and the reserved joint 24. A conical plug 38 is installed on the support member 36 via an elastic member 37. Both the combination joint 34 and the reserved joint 24 are equipped with a ring sleeve 39. The conical plug 38 is installed through the ring sleeve 39. When the elastic member 37 presses the conical plug 38 tightly onto the ring sleeve 39, it can prevent coolant from flowing out. When the combination joint 34 and the reserved joint 24 are mated, the ends of the two conical plugs 38 abut against each other, which can overcome the elastic force of the elastic member 37 and move back, thereby forming a gap so that coolant can flow.

[0057] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular mobile energy storage device, characterized in that: include: The modular mobile box, front panel, and rear panel are connected by assembly components to form a basic unit; A connecting box for corners is placed between adjacent movable boxes to enable multi-directional expansion; The mobile box is equipped with a water-cooled battery rack, including a water pipe-type base with cooling channels, and a battery cavity is formed between the bases; The mobile box is equipped with a modular top tube at the top and a modular bottom tube at the bottom. The liquid inlet pipe inside the box connects the top tube to one end of the bottom support, and the liquid outlet pipe inside the box connects the bottom tube to the other end of the bottom support. The front end plate is equipped with a pump box, which contains an industrial pump and a circulating water tank. The circulating water tank is connected to the top pipe of the mobile box at the front end through a liquid supply pipe and to the bottom pipe of the mobile box at the front end through a liquid return pipe, forming a circulation path. The connecting box includes: A partition is provided on the front side of the movable box to block heat transfer; The fan unit and the assembled cooling mechanism, the cooling mechanism includes a serpentine cooling pipe with heat sink, and the cooling pipe is equipped with a combination joint at both ends; The upper and lower connecting pipes are respectively connected to the top and bottom pipes of the adjacent mobile boxes; the upper connecting pipe is connected to the reserved inlet pipe, and the lower connecting pipe is connected to the reserved outlet pipe, with reserved joints at both ends; The combination joint and the reserved joint are fixed by threaded fittings, and the internal elastic conical plug sealing structure achieves double leakage prevention.

2. The modular mobile energy storage device according to claim 1, characterized in that: The cooling mechanism includes a bracket, which is fixed by an assembly seat inside the connecting box; The mounting base is provided with a slot, and a slide is movably mounted on both sides of the slot via spring guides. A baffle and a side support plate are fixed on the slide. The baffle is used to limit the bottom of the bracket, and the side support plate is used to support both sides of the bracket.

3. The modular mobile energy storage device according to claim 2, characterized in that: The cooling pipe is installed inside the bracket, and the heat sink is set on the outer wall of the cooling pipe to enhance heat dissipation efficiency. The cooling pipe is located on the air outlet channel of the fan unit.

4. The modular mobile energy storage device according to claim 1, characterized in that: The elastic conical plug sealing structure includes a support, an elastic element, a conical plug, and a ring sleeve; The support is installed in the combination joint and the reserved joint. The conical plug is connected to the support through an elastic element, and the conical plug is set through the ring sleeve. When mated, the conical plugs abut against each other and retract to form a flow gap; when not mated, the elastic element pushes the conical plug sealing ring.

5. A modular mobile energy storage device according to claim 1, characterized in that: The upper and lower connecting pipes of the connecting box are equipped with control valves at both ends to control the flow of coolant.

6. A combined modular mobile energy storage device according to claim 1, characterized in that: The assembly is a bolt assembly, and the modular mobile box, front plate, rear plate and connecting box are detachably connected by the bolt assembly.

7. A modular mobile energy storage device according to claim 1, characterized in that: The top and bottom pipes of the mobile box are equipped with control valves to control the flow of coolant and prevent coolant leakage during disassembly.

8. A combined modular mobile energy storage device according to claim 1, characterized in that: The pump box on the front end plate is provided with a replenishment port, which is connected to the circulating water tank for replenishing coolant.

9. A combined modular mobile energy storage device according to claim 1, characterized in that: The rear end plate is provided with heat dissipation slots, which are reserved air outlets for the fan unit.

10. A combined modular mobile energy storage device according to claim 1, characterized in that: The connecting box is equipped with an air inlet slot for introducing external air into the fan unit.

11. A combined modular mobile energy storage device according to claim 1, characterized in that: The connecting box can be modularly angled and customized to guide the rear moving box to connect with the front moving box in a 0-90 degree direction.

Images