Combined modular mobile energy storage device

Abstract

The invention relates to the technical field of energy storage batteries, in particular to a combined modular mobile energy storage device which comprises a modular mobile box, a front end plate and a rear end plate which are connected through assembly parts to form a basic unit. The connecting boxes are arranged between the adjacent moving boxes so as to realize multidirectional expansion; a water-cooled battery rack and water pipe type bottom supports with cooling runners are arranged in the moving box, and a battery cavity is formed between the bottom supports; a modularized top pipe is arranged at the top of the movable box, a modularized bottom pipe is arranged at the bottom, an in-box liquid inlet pipe communicates with the top pipe and one end of the bottom support, and an in-box liquid outlet pipe communicates with the bottom pipe and the other end of the bottom support; a pump box is arranged on the front end plate and internally provided with an industrial pump and a circulating water tank, and the circulating water tank is connected with a top pipe of the head-end moving box through a liquid supply pipe and connected with a bottom pipe of the head-end moving box through a liquid return pipe to form a circulating passage; the connecting box comprises a partition plate arranged on the front moving box side to block heat transfer; the invention discloses a fan set and an assembled cooling mechanism. The purpose of improving the application flexibility of the energy storage device can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage batteries, and in particular to a combined modular mobile energy storage device. Background Art

[0002] With the rapid development of renewable energy and the growing demand for flexible energy storage in power systems, mobile energy storage devices are playing a vital role in peak load regulation, emergency power supply, and off-grid applications. Containerized energy storage devices, due to their standardization, have gained widespread adoption in the power storage sector in recent years. This design, which integrates the battery system, thermal management system, and control system within a standard container, facilitates transportation and rapid deployment, making it particularly suitable for scenarios such as temporary power supply, remote area power supply, and industrial and commercial energy storage.

[0003] However, existing containerized energy storage devices still face numerous challenges in practical applications. First, while the standard container structure facilitates transportation, it is limited by its fixed size and rigid layout, making it difficult to flexibly adjust in sites with limited space or requiring special orientations. Second, when multiple boxes are connected in series for expansion, traditional cooling solutions struggle to evenly control the temperature distribution of the entire system. Remote boxes often experience local overheating due to reduced cooling efficiency, impacting system safety and battery life. Summary of the Invention

[0004] The object of the present invention is to provide a combined modular mobile energy storage device to improve the application flexibility of the energy storage device and to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a combined modular mobile energy storage device, comprising: The modular mobile box, front panel and rear panel are connected by assembly parts to form the basic unit; The junction box for corners is installed between adjacent moving boxes to achieve multi-directional expansion; The mobile box is equipped with a water-cooled battery rack, which includes a water-tube bottom bracket with cooling channels, and a battery cavity is formed between the bottom brackets; The top of the mobile box is equipped with a modular top pipe, and the bottom is equipped with a modular bottom pipe. The liquid inlet pipe in the box is connected to the top pipe and one end of the bottom support, and the liquid outlet pipe in the box is connected to the bottom pipe and the other end of the bottom support. The front end panel is equipped 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 mobile box at the head end through a liquid supply pipe and to the bottom pipe of the mobile box at the head end through a liquid return pipe to form a circulation path. The adapter box contains: A partition is provided on the side of the front moving box to block heat transfer; The fan unit and assembled cooling mechanism include a serpentine cooling pipe with heat sinks and modular joints at both ends of the cooling pipe; The upper pipe and the lower pipe are connected to the top pipe and the bottom pipe of the adjacent mobile box respectively; the upper pipe is connected to the reserved inlet pipe, and the lower pipe is connected to the reserved outlet pipe, and the ends of the two are provided with reserved joints; The combined joint and the reserved joint are fixed by a threaded kit, and an elastic conical plug sealing structure is provided inside to achieve double leakage prevention.

[0006] Preferably, the cooling mechanism includes a bracket, and the bracket is fixed by an assembly seat in the connection box; The assembly seat is provided with a card slot, and the slide is movably installed on both sides of the card slot through a spring guide seat. 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.

[0007] Preferably, the cooling pipe is installed in the bracket, and the heat sink is arranged on the outer wall of the cooling pipe to enhance the heat dissipation efficiency, and the cooling pipe is located on the air outlet channel of the fan unit.

[0008] Preferably, the elastic conical plug sealing structure comprises a support, an elastic member, a conical plug and a ring sleeve; The support is installed in the combined joint and the reserved joint, the tapered plug is connected to the support through the elastic member, and the tapered plug passes through the ring sleeve; When docked, the conical plugs abut against each other and retract to form a flow gap; when not docked, the elastic member pushes the conical plug sealing ring.

[0009] Preferably, control valves are provided at both ends of the upper and lower connecting pipes of the connection box for controlling the circulation of the coolant.

[0010] Preferably, the assembly is a bolt assembly, and the modular moving box, the front end plate, the rear end plate and the connecting box are detachably connected by the bolt assembly.

[0011] Preferably, control valves are installed at both ends of the top pipe and the bottom pipe of the mobile box to control the circulation of the coolant and prevent the coolant from leaking during disassembly.

[0012] Preferably, a supplementary port is provided on the pump box of the front end plate, and the supplementary port is connected to the circulating water tank for replenishing the coolant.

[0013] Preferably, a heat dissipation slot is provided on the rear end panel, and the heat dissipation slot is reserved for an air outlet of the fan unit.

[0014] Preferably, an air inlet slot is provided on the connection box for introducing external air into the fan unit.

[0015] Preferably, the connection box can be customized in modular angles to guide the rear moving box and the front moving box to achieve a connection in a 0-90 degree direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The modular design of the mobile box and the connection box that can be connected at multiple angles enable the flexible combination and expansion of the energy storage device under space-constrained conditions. When necessary, the capacity of the energy storage device can be freely increased to meet usage needs. At the same time, the layout can be freely adjusted according to actual site requirements.

[0017] 2. The present invention adopts a hybrid heat dissipation system that combines water cooling and air cooling. The water cooling part forms a complete circulating cooling network through a modularly designed liquid inlet pipe, liquid outlet pipe, top pipe and bottom pipe, ensuring that the battery pack in each mobile box can obtain uniform and effective cooling. At the same time, the fan unit and serpentine cooling pipes installed in the connecting box form an auxiliary air cooling system, which specifically provides supplementary heat dissipation for remote mobile boxes away from the circulation pump, effectively solving the problem of reduced remote heat dissipation efficiency in traditional series cooling systems.

[0018] 3. The cooling pipe connection system adopts a double-seal design. Through the combination of external threaded kit fixation and internal tapered plug elastic sealing structure, it not only ensures the firmness of the pipe connection but also achieves reliable leakage prevention performance. 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.

[0019] 4. The present invention utilizes the slots, baffles, and side support plates of the assembly seat structure to enable quick installation and fixation of the cooling mechanism, significantly improving the system's maintainability. The overall design of the energy storage device fully considers various operating conditions in actual applications, significantly improving the adaptability, heat dissipation efficiency, and maintenance ease of the energy storage device while ensuring system reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first schematic diagram of the additional state of the energy storage device of the present invention.

[0021] Figure 2 This is a second schematic diagram of the additional state of the energy storage device of the present invention.

[0022] Figure 3 Schematic diagram of the bottom of the energy storage device of the present invention.

[0023] Figure 4 Schematic diagram of the basic state of the energy storage device of the present invention.

[0024] Figure 5 It is a schematic diagram of the mobile box structure of the present invention.

[0025] Figure 6 Schematic diagram of the battery rack structure of the present invention.

[0026] Figure 7 This is a first schematic diagram of the adapter box structure of the present invention.

[0027] Figure 8 This is a second schematic diagram of the adapter box structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the installation of the cooling pipe structure of the present invention.

[0029] Figure 10 Schematic diagram of the assembly seat structure of the present invention.

[0030] Figure 11 Schematic diagram of the connector connection state of the present invention.

[0031] In the figure: 1. Moving box; 2. Front end plate; 3. Rear end plate; 4. Connecting box; 5. Assembly part; 6. Battery rack; 7. Liquid inlet pipe; 8. Liquid outlet pipe; 9. Top pipe; 10. Bottom pipe; 11. Control valve; 12. Pump box; 13. Liquid supply pipe; 14. Liquid return pipe; 15. Supplementary port; 16. Heat sink; 17. Air inlet slot; 18. Partition; 19. Fan unit; 20. Upper connecting pipe; 21. Lower connecting pipe; 22. Reserved inlet pipe; 23. Reserved outlet pipe; 24. Reserved joint; 25. Assembly seat; 26. Card slot; 27. Spring guide seat; 28. Slide seat; 29. Baffle; 30. Side support plate; 31. Bracket; 32. Cooling pipe; 33. Heat sink; 34. Combined joint; 35. Threaded kit; 36. Support; 37. Elastic member; 38. Conical plug; 39. Ring sleeve. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with 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 noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 11 The present invention provides a technical solution: a combined modular mobile energy storage device, which has a container-type structure, in which energy storage battery packs can be loaded, and the energy storage device can be transported and moved according to the actual application location.

[0034] The energy storage device adopts a modular structure, and is generally composed of a mobile box 1, a front end plate 2, and a rear end plate 3. The mobile box 1 is used to load the energy storage battery, and according to the energy storage needs, such as Figure 4 As shown, multiple mobile boxes 1 can be connected to each other to load enough energy storage batteries. When the space for placing the energy storage device is limited, as shown in FIG. Figure 1-Figure 3As shown, a connecting box 4 can be set between two moving boxes 1. The connecting box 4 can be designed with different angles to supplement the moving boxes 1 in different directions and increase the overall capacity of the energy storage device. The front end plate 2 and the rear end plate 3 can be combined to package the front and rear sides of the moving box 1. The moving box 1, the front end plate 2, the rear end plate 3 and the connecting box 4 are all provided with assembly parts 5. The assembly parts 5 can be connected by bolts, thereby achieving the effect of combining and fixing the entire energy storage device.

[0035] 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 columns and water-tube bottom brackets. The water-tube bottom brackets are arranged in an arranged manner, and battery cavities are formed between adjacent bottom brackets to load energy storage batteries. The bottom brackets can flow coolant to absorb the heat of the batteries, thereby controlling the temperature in the energy storage device and ensuring the normal operation of the energy storage batteries. The mobile box 1 is vertically installed with a liquid inlet pipe 7 and a liquid outlet pipe 8. The two ends of the water-tube bottom bracket are respectively connected to the liquid inlet pipe 7 and the liquid outlet pipe 8, so that the coolant can circulate therein. At the same time, The top of the mobile box 1 is provided with a modular top pipe 9, and the bottom is provided 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, the top pipes 9 thereon can be connected to each other, and the bottom pipes 10 can also be connected to each other, thereby forming a liquid supply and recovery passage. Furthermore, control valves 11 are installed at both ends of the top pipe 9 and the bottom pipe 10 to ensure that after the mobile box 1 is disassembled, the coolant remaining in the pipeline will not flow out uncontrolled, which can control the circulation of the coolant.

[0036] like Figures 1-6 As shown, a pump box 12 is fixedly connected to the front end plate 2, and an industrial pump and a matching circulating water tank are provided in the pump box 12. The circulating water tank is connected to a liquid supply pipe 13 and a liquid return pipe 14. The liquid supply pipe 13 can be connected to the top pipe 9 on the mobile box 1 close to the front end plate 2, and the liquid return pipe 14 can be connected to the bottom pipe 10 on the mobile box 1 close to the front end plate 2, so that the circulating water tank, the top pipe 9, the liquid inlet pipe 7, the water pipe bottom support, the liquid outlet pipe 8, and the bottom pipe 10 form a circulation passage, and the coolant is pressurized and transported by the industrial pump to circulate and absorb and discharge heat. At the same time, a supplementary port 15 is also provided on the pump box 12 for the circulating water tank. After the mobile box 1 is supplemented according to the power storage needs, the coolant can be supplemented accordingly through the supplementary port 15 to ensure that the coolant is sufficiently circulated. At the same time, when the boosting capacity of the industrial pump is insufficient, it can be replaced to meet the circulation needs.

[0037] like Figure 3-Figure 8As shown, the rear end plate 3 of the present invention is provided with a heat dissipation groove 16, which can reserve an air outlet for the air-cooling structure. In addition to the steering connection, the connecting box 4 can also play the role of separation and air cooling. Considering that the water cooling effect in the mobile box 1 at the rear 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 a variety of models, which guide the mobile box 1 at the rear of the connecting box 4 to connect with the mobile box 1 in the front at 0-90 degrees.

[0038] An air inlet groove 17 is provided on the connecting box 4, and a partition 18 is provided on the side of the connecting box 4 facing the front moving box 1. The partition 18 prevents the heat of the front moving box 1 from entering the rear through the connecting box 4, and 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.

[0039] like Figure 6-Figure 9 As shown, a fan unit 19 is installed in the connecting box 4, and an upper connecting pipe 20 is provided on the top of the connecting box 4 and a lower connecting pipe 21 is provided on the bottom. The upper connecting pipe 20 can be connected between the two top pipes 9, and the lower connecting pipe 21 can be connected between the two bottom pipes 10, thereby connecting to the water cooling passage, and both ends of the upper connecting pipe 20 and the lower connecting 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 connecting pipe 20, and a reserved outlet pipe 23 is connected to the lower connecting 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 joints 24 for assembly connection of the cooling mechanism, thereby further improving the auxiliary heat dissipation effect of the fan unit 19.

[0040] like Figures 8-11 As shown, the cooling mechanism includes a bracket 31, in which a serpentine cooling pipe 32 is fixedly installed, and a heat sink 33 is set on the outer wall of the cooling pipe 32. Combination joints 34 are installed at both ends of the cooling pipe 32. The cooling pipe 32 is connected to the circulation path through the connection between the combination joint 34 and the reserved joint 24, so that the cooling pipe 32 filled with coolant is located at the air outlet of the fan group 19, so that the airflow generated by the fan group 19 can more effectively dissipate heat for the energy storage battery. External threads are provided on the outer walls of the combination joint 34 and the reserved joint 24, and a threaded sleeve 35 is connected between the combination joint 34 and the reserved joint 24. The combination of threads achieves the effect of fixing and external leakage prevention.

[0041] like Figure 7-11As shown, the cooling mechanism is fixed by an assembly seat 25 in the connection box 4, a card slot 26 is provided in the assembly seat 25, and slides 28 are movably installed on both sides of the card slot 26 through spring guide seats 27, and a baffle 29 is fixedly installed on the slide 28, and the baffle 29 can cover the card slot 26. After the bottom of the bracket 31 is inserted into the card slot 26, the bracket 31 can be limited and fixed by the baffle 29. At the same time, side support plates 30 are also installed on the slide 28, and the side support plates 30 can act on both sides of the bracket 31 to provide side support to the bracket 31, thereby further improving the installation stability of the cooling pipe 32.

[0042] In order to prevent accidental leakage of coolant in the cooling pipe 32, in addition to external leakage prevention through the threaded sleeve 35, an openable and closable inner plug structure is also provided in the combination joint 34 and the reserved joint 24, which can automatically open when the combination joint 34 and the reserved joint 24 are docked with each other. The inner plug structure includes a support 36 installed in the combination joint 34 and the reserved joint 24, and a conical plug 38 is installed on the support 36 through an elastic member 37, and a ring sleeve 39 is provided in the combination joint 34 and the reserved joint 24. The conical plug 38 is arranged through the ring sleeve 39. When the elastic member 37 presses the conical plug 38 tightly against the ring sleeve 39, the coolant can be prevented from flowing out. When the combination joint 34 and the reserved joint 24 are docked, 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 the coolant can flow.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A modular mobile energy storage device, characterized by: include: The modular mobile box, front panel and rear panel are connected by assembly parts to form the basic unit; The junction box for corners is installed between adjacent moving boxes to achieve multi-directional expansion; The mobile box is equipped with a water-cooled battery rack, which includes a water-tube bottom bracket with cooling channels, and a battery cavity is formed between the bottom brackets; The top of the mobile box is equipped with a modular top pipe, and the bottom is equipped with a modular bottom pipe. The liquid inlet pipe in the box is connected to the top pipe and one end of the bottom support, and the liquid outlet pipe in the box is connected to the bottom pipe and the other end of the bottom support. The front end panel is equipped 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 mobile box at the head end through a liquid supply pipe and to the bottom pipe of the mobile box at the head end through a liquid return pipe to form a circulation path. The adapter box contains: A partition is provided on the side of the front moving box to block heat transfer; The fan unit and the assembled cooling mechanism include a serpentine cooling pipe with heat sinks and modular joints at both ends of the cooling pipe; The upper pipe and the lower pipe are connected to the top pipe and the bottom pipe of the adjacent mobile box respectively; the upper pipe is connected to the reserved inlet pipe, and the lower pipe is connected to the reserved outlet pipe, and the ends of the two are provided with reserved joints; The combined joint and the reserved joint are fixed by a threaded kit, and an elastic conical plug sealing structure is provided inside to achieve double leakage prevention.

2. A combined 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 in the connection box; The assembly seat is provided with a card slot, and a slide is movably installed on both sides of the card slot through a spring guide seat. 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 combined modular mobile energy storage device according to claim 1, characterized in that: The cooling pipe is installed in the bracket, and the heat sink is arranged on the outer wall of the cooling pipe to enhance the heat dissipation efficiency, and the cooling pipe is located on the air outlet channel of the fan unit.

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

5. The combined modular mobile energy storage device according to claim 1, characterized in that: Both ends of the upper connecting pipe and the lower connecting pipe of the connection box are provided with control valves for controlling the circulation of the cooling liquid.

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

7. The combined modular mobile energy storage device according to claim 1, characterized in that: Control valves are installed at both ends of the top pipe and the bottom pipe of the mobile box to control the circulation of the coolant and prevent the coolant from leaking during disassembly.

8. The combined modular mobile energy storage device according to claim 1, characterized in that: A supplementary port is provided on the pump box of the front end plate, and the supplementary port is communicated with the circulating water tank for supplementing the coolant.

9. The combined modular mobile energy storage device according to claim 1, characterized in that: The rear end plate is provided with a heat dissipation slot, and the heat dissipation slot is reserved for an air outlet of the fan unit.

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

11. The combined modular mobile energy storage device according to claim 1, characterized in that: The connection box can be customized in modular angles to guide the rear moving box and the front moving box to achieve a connection in a 0-90 degree direction.

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