Modular stacked energy storage all-in-one machine

Abstract

The utility model provides a modularization stacking type energy storage integrated machine relates to energy storage box body technical field, including base, frame, partition board, air conditioner, energy storage converter and outer cover. The modularization stacking type energy storage integrated machine, the heat that energy storage converter works produces, low temperature air enters the inside of energy storage converter, becomes hot air after heat exchange with the heat generating component, is discharged from the rear orifice board equipment outside, the low temperature air required when air conditioner works, through the first air deflector guide enters from the first inspection door, becomes hot air after absorbing the heat inside air conditioner, is discharged from the rear orifice board. Through the double isolation of partition board and baffle, effectively avoid the airflow interference between the heat dissipation area and energy storage area, air conditioner and energy storage converter, prevent high temperature air to stay in the equipment inside, the air intake, air outlet of air conditioner and the air intake, air outlet of energy storage converter are completely independent, do not interfere with each other, completely put an end to the mixed air problem between air conditioner and energy storage converter.

Description

Technical Field

[0001] This utility model relates to the field of energy storage box technology, and in particular to a modular stacked integrated energy storage unit. Background Technology

[0002] In the field of new energy storage, integrated energy storage units, as core equipment for energy storage and conversion, directly determine the reliability and economy of the overall energy storage system through their operational stability, heat dissipation efficiency, and ease of installation and maintenance. Currently, stacked energy storage devices on the market are severely limited in performance and lifespan due to structural design flaws. In existing equipment, air-cooled units (such as heat dissipation modules for energy storage converters) and water-cooled units (such as air conditioning systems) are often placed in the same area, lacking effective airflow guidance and physical isolation structures.

[0003] This design causes the high-temperature air discharged from the energy storage converter to mix directly with the low-temperature intake air required for air conditioning, creating "mixed air interference." On the one hand, after the air conditioner draws in the high-temperature mixed air, the cooling load increases significantly, and the cooling efficiency decreases significantly. It cannot dissipate the heat generated by the batteries in the energy storage area in time, causing the batteries to be in a high-temperature environment for a long time, accelerating the capacity decay rate, and even triggering the risk of thermal runaway. On the other hand, the high-temperature mixed air flows through the energy storage converter again, which will aggravate the heat accumulation of its internal power devices, leading to device performance degradation, frequent overheat protection shutdowns, and seriously affecting the continuous operation capability of the equipment. Utility Model Content

[0004] This invention provides a modular stacked energy storage unit, which solves the problem of disordered heat dissipation in air-cooled and water-cooled units mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular stacked energy storage unit, comprising a base, a frame, a partition plate, an air conditioner, an energy storage converter, and an outer casing. The frame is fixed on the base, and the partition plate is fixed inside the frame. The frame is divided into an independent heat dissipation area and an energy storage area by the partition plate. The air conditioner and the energy storage converter are installed in the heat dissipation area. The outer casing covers the outside of the frame. A partition plate is horizontally fixed inside the frame in the heat dissipation area, dividing the heat dissipation area into two independent sealed areas. The air conditioner and the energy storage converter are located on opposite sides of the partition plate. A first air guide plate is provided at the air inlet of the air conditioner, and a second air guide plate is provided at the air inlet of the energy storage converter. The outer casing has a first inspection door and a rear perforated plate at the location of the heat dissipation area. The first inspection door has multiple ventilation holes. The first inspection door and the rear perforated plate are located on the front and rear sides of the outer casing, respectively. The first air guide plate and the second air guide plate are both in contact with the inner side of the first inspection door.

[0006] Preferably, an independent ventilation channel is formed between the air conditioner and the first air guide plate, and an independent ventilation channel is formed between the second air guide plate and the energy storage converter.

[0007] Preferably, a battery management system is provided in the energy storage area of ​​the frame, and multiple brackets are arranged vertically below the battery management system. An energy storage battery integrated box is fixed on the bracket, and the energy storage battery is placed inside the energy storage battery integrated box and electrically connected to the battery management system.

[0008] Preferably, the air conditioner is connected to an outlet pipe and a return pipe. The outlet pipe is provided with multiple outlet branch pipes, and the return pipe is provided with multiple return branch pipes. The outlet branch pipes and the return branch pipes are matched in pairs. A pipe is coiled inside the bottom plate of the energy storage battery integrated box. The outlet pipe and the return pipe are respectively fixed to the water inlet end and water outlet end of the pipe on the bottom plate of the energy storage battery integrated box. The outlet pipe and the return pipe achieve cooling water circulation through the cooperation of the paired outlet branch pipes and the return branch pipes.

[0009] Preferably, the outflow branch pipes and the return branch pipes, which are arranged in pairs, are connected in parallel.

[0010] Preferably, the upper end of the frame is provided with a connector, and the outer cover is fixedly connected to the connector by bolts.

[0011] Preferably, the outer casing is provided with a second inspection door at the location of the energy storage area, and the second inspection door is located on the same side as the first inspection door.

[0012] Preferably, the first inspection door and the second inspection door are connected to the outer casing via hinges. A first louver is fixed to the inner side of the first inspection door, and a second louver is fixed to the inner side of the rear perforated plate. Both the first louver and the second louver adopt an inclined structure, with the blades inclined towards the outside of the cabinet.

[0013] Preferably, there are two first louvers, which are arranged vertically and correspond to the ventilation channels formed by the first air guide plate and the second air guide plate, respectively.

[0014] Preferably, there are two second louvers, which are arranged vertically and correspond to the ventilation channels formed by the first air guide plate and the second air guide plate, respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are: After the equipment is powered on, the battery management system starts first, detecting initial parameters such as voltage, current, and temperature of all energy storage batteries. Once the battery status is confirmed to be normal, a start signal is sent to the air conditioner and energy storage inverter, which then start synchronously. During the energy storage process, heat is generated and transferred through the battery casing to the energy storage battery integration box. Copper pipes inside the integration box absorb the heat. Cooling water from the air conditioner enters the energy storage battery integration box piping via the outflow pipe and outflow branch pipe, exchanges heat with the water, and then returns to the air conditioner via the return branch pipe and return pipe. The air conditioner cools the water and then returns it to the energy storage battery integration box piping, forming a cooling water circulation that continuously removes heat from the battery. Meanwhile, the heat generated by the energy storage converter during operation is cooled by external low-temperature air guided by the second air guide plate. This low-temperature air enters the energy storage converter, exchanges heat with the heat-generating components, and becomes hot air, which is then exhausted to the outside of the equipment through the second louver of the rear perforated plate. The low-temperature air required for air conditioning operation is guided by the first air guide plate through the first louver of the first inspection door, absorbs heat from the air conditioner, becomes hot air, and is exhausted through the second louver of the rear perforated plate. Through the double isolation of the partition plates and baffles, airflow interference between the heat dissipation area and the energy storage area, and between the air conditioner and the energy storage converter, is effectively avoided, preventing high-temperature air from stagnating inside the equipment. The air intake and exhaust of the air conditioner are completely independent of the air intake and exhaust of the energy storage converter, without interference, thus completely eliminating the problem of mixed airflow between the air conditioner and the energy storage converter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the modular stacked energy storage integrated machine of this utility model; Figure 2 This is a structural schematic diagram of the installation position of the first louver of this utility model; Figure 3 This is a structural schematic diagram of the mounting position of the rear hole plate of this utility model; Figure 4 This is a structural schematic diagram of the installation position of the second louver of this utility model; Figure 5 This is a schematic diagram showing how the partition plate of this utility model divides the interior of the outer casing into two independent parts; Figure 6 This is a structural diagram showing the installation position of the connector of this utility model; Figure 7 This is a schematic diagram showing the connection between the outlet pipe and return pipe of this utility model and the air conditioner; Figure 8 for Figure 7 Enlarged view of point A.

[0017] The following are the labeling elements in the diagram: 1. Base; 2. Frame; 21. Partition plate; 3. Connector; 4. Partition plate; 5. Air conditioner; 51. Outflow pipe; 511. Outflow branch pipe; 52. Return pipe; 521. Return branch pipe; 53. First air guide plate; 6. Energy storage converter; 61. Second air guide plate; 7. Bracket; 71. Energy storage battery integrated box; 8. Outer casing; 81. First inspection door; 811. First louver; 82. Rear perforated plate; 821. Second louver; 83. Second inspection door; 9. Battery management system. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] This utility model provides a modular stacked energy storage unit, such as Figure 1 and Figure 5 As shown, the device includes a base 1, a frame 2, a partition plate 21, an air conditioner 5, an energy storage converter 6, and an outer casing 8. The frame 2 is fixed to the base 1, and the partition plate 21 is fixed inside the frame 2. The frame 2 is divided into an independent heat dissipation area and an energy storage area by the partition plate 21. The air conditioner 5 and the energy storage converter 6 are installed in the heat dissipation area. The outer casing 8 covers the outside of the frame 2. A partition plate 4 is horizontally fixed inside the frame 2 located in the heat dissipation area, dividing the heat dissipation area into two independent and sealed areas. The air conditioner 5 and the energy storage converter 6 are located on opposite sides of the partition plate 4. The partition plate 21 achieves physical isolation between the heat dissipation area and the energy storage area, preventing airflow between the two areas. The partition plate 4 further subdivides the heat dissipation area, placing the air conditioner 5 and the energy storage converter 6 in their own independent spaces. Through the double isolation of the partition plate 21 and the partition plate 4, airflow interference between the heat dissipation area and the energy storage area, and between the air conditioner 5 and the energy storage converter 6, is effectively avoided, preventing high-temperature air from stagnating inside the device.

[0020] A first air guide plate 53 is installed at the air inlet of the air conditioner 5, and a second air guide plate 61 is installed at the air inlet of the energy storage converter 6. For example... Figure 1 and Figure 3As shown, the outer casing 8 has a first inspection door 81 and a rear perforated plate 82 located in the heat dissipation area. The first inspection door 81 has multiple ventilation holes. The first inspection door 81 and the rear perforated plate 82 are located on the front and rear sides of the outer casing 8, respectively. The first air guide plate 53 and the second air guide plate 61 are both attached to the inner side of the first inspection door 81. An independent ventilation channel is formed between the air conditioner 5 and the first air guide plate 53, and an independent ventilation channel is formed between the second air guide plate 61 and the energy storage converter 6. Dedicated airflow paths are constructed for the air conditioner 5 and the energy storage converter 6, ensuring that the air intake and exhaust of the air conditioner 5 are completely independent from those of the energy storage converter 6, without interference. This completely eliminates the problem of air mixing between the air conditioner 5 and the energy storage inverter 6, preventing the high-temperature air discharged by the energy storage inverter 6 from being drawn into the air conditioner 5. This ensures that the air conditioner 5 always uses low-temperature air as its air intake source, maintaining a high-efficiency cooling effect. At the same time, it prevents high-temperature air from flowing through the energy storage inverter 6 again, reducing its performance degradation caused by overheating and extending the service life of core components.

[0021] like Figure 5 and Figure 7 As shown, a battery management system 9 is installed within the energy storage area of ​​frame 2. Multiple brackets 7 are vertically arranged below the battery management system 9, and energy storage battery integration boxes 71 are fixed on the brackets 7. The energy storage batteries are placed inside the energy storage battery integration boxes 71 and electrically connected to the battery management system 9. The battery management system 9 monitors the voltage, current, temperature, and other operating parameters of the energy storage batteries in real time, controlling and protecting the battery's charging and discharging process to prevent abnormal conditions such as overcharging, over-discharging, and overheating.

[0022] Air conditioner 5 is connected to an outlet pipe 51 and a return pipe 52. The outlet pipe 51 has multiple outlet branch pipes 511, and the return pipe 52 has multiple return branch pipes 521. The outlet branch pipes 511 and return branch pipes 521 are paired and matched. The multiple pairs of outlet branch pipes 511 and return branch pipes 521 are connected in parallel. Pipes are coiled inside the bottom plate of the energy storage battery integrated box 71, such as... Figure 8 As shown, the outflow pipe 51 and the return pipe 52 are respectively fixed to the inlet and outlet ends of the pipes on the bottom plate of the energy storage battery integration box 71. The outflow pipe 51 and the return pipe 52 cooperate with the paired outflow branch pipe 511 and return branch pipe 521 to achieve cooling water circulation. The cooling water generated by the air conditioner 5 is distributed to each outflow branch pipe 511 through the outflow pipe 51, and then enters the pipes in the bottom plate of the energy storage battery integration box 71. It exchanges heat with the heat generated by the energy storage battery in the energy storage battery integration box 71. After absorbing heat, the cooling water is collected in the return branch pipe 521 and then returned to the air conditioner 5 for cooling, forming a complete cooling water circulation to continuously cool the energy storage battery.

[0023] Specifically, one end of the outflow pipe 51 is connected to the outlet of the cooling water circulation loop inside the air conditioner 5, which is located downstream of the evaporator. The low-temperature cooling water, after being cooled by the evaporator, flows out from the outlet of the cooling water circulation loop of the air conditioner 5 and enters the outflow pipe 51. The outflow pipe 51 serves as the main pipeline for transporting cooling water, guiding the low-temperature cooling water to the energy storage area. Then, through multiple outflow branch pipes 511 installed on it, the cooling water is distributed to the pipes in each energy storage battery integration box 71 to cool the energy storage batteries.

[0024] One end of the return pipe 52 is connected to the inlet of the cooling water circulation loop inside the air conditioner 5, which is located upstream of the evaporator. The cooling water, which has increased in temperature after exchanging heat with the energy storage battery and absorbing heat in the pipes inside the bottom plate of the energy storage battery integration box 71, will be collected in the return pipe 52 through the return branch pipe 521, and then transported to the inlet of the cooling water circulation loop of the air conditioner 5, and re-enter the air conditioner 5. Subsequently, this heated cooling water will flow through the evaporator again, exchange heat with the refrigerant in the evaporator, release heat and be cooled down again, becoming low-temperature cooling water, and then transported to the energy storage area through the outlet pipe 51, forming a complete cooling water circulation.

[0025] The cooling water circulation system can directly cool the energy storage battery, making the cooling effect more direct and efficient. It effectively controls the temperature of the energy storage area and prevents the battery from experiencing performance degradation due to high temperature. The outflow branch pipe 511 and return branch pipe 521 are matched in pairs to ensure that each energy storage battery integrated box 71 can obtain sufficient cooling water, ensuring uniform cooling of all energy storage batteries and further improving the stability of battery operation.

[0026] like Figure 6 As shown, a connector 3 is provided at the upper end of the frame 2, and the outer shell 8 is fixedly connected to the connector 3 by bolts. The connector 3 serves as the connection medium between the frame 2 and the outer shell 8, providing a fixing point for the outer shell 8. The bolt connection enables the detachable fixing of the outer shell 8 and the frame 2, ensuring that the outer shell 8 is securely installed on the outside of the frame 2. Before installing the outer shell 8, internal assembly can be carried out first, and components such as the air conditioner 5, energy storage converter 6, and energy storage battery can be placed in the frame 2 for easy installation. After installation, the outer shell 8 is placed over the frame 2, and then the connector 3 is fixed to the outer shell 8.

[0027] Existing modular stacked energy storage units mostly adopt a production model of "fabricating the casing first, then assembling the internal components." After the casing is formed, operators can only fix and connect internal components through narrow openings on one or both sides. Due to the narrow operating space, not only is it difficult to guarantee the installation accuracy of components, but it also prolongs the installation cycle. Furthermore, during later equipment maintenance, disassembling and replacing parts is extremely difficult, increasing maintenance costs and downtime.

[0028] like Figure 2 and Figure 4 As shown, the outer casing 8 has a second inspection door 83 located at the energy storage area, and the second inspection door 83 is on the same side as the first inspection door 81. The first inspection door 81 and the second inspection door 83 are connected to the outer casing 8 via hinges. A first louver 811 is fixed to the inside of the first inspection door 81, and a second louver 821 is fixed to the inside of the rear perforated plate 82. Both the first louver 811 and the second louver 821 adopt an inclined structure, with the blades inclined towards the outside of the cabinet. There are two first louvers 811, arranged vertically, and each first louver 811 corresponds to a ventilation channel formed by the first air guide plate 53 and the second air guide plate 61. There are also two second louvers 821, arranged vertically, and each second louver 821 corresponds to a ventilation channel formed by the first air guide plate 53 and the second air guide plate 61.

[0029] The first louver 811 fixed inside the first inspection door 81 and the second louver 821 fixed inside the rear perforated plate 82 both adopt a structure in which the blades are tilted towards the outside of the cabinet. This ensures smooth airflow inside and outside the equipment, meets the air intake and exhaust requirements of the heat dissipation area, and effectively blocks external water intrusion.

[0030] The specific workflow is as follows: After the equipment is powered on, the battery management system 9 starts first, detecting the initial parameters such as voltage, current, and temperature of all energy storage batteries. After confirming that the battery status is normal, it sends a start signal to the air conditioner 5 and the energy storage inverter 6, which then start synchronously. The energy storage process generates heat, which is transferred through the battery casing to the energy storage battery integrated box 71. The copper pipes inside the bottom plate of the energy storage battery integrated box 71 absorb the heat. The cooling water generated by the air conditioner 5 enters the bottom plate pipes of the energy storage battery integrated box 71 through the outflow pipe 51 and outflow branch pipe 511, where it exchanges heat with the water. The cooling water carrying the heat returns to the air conditioner 5 through the return branch pipe 521 and return pipe 52. The air conditioner 5 cools the cooling water and then delivers it back to the bottom plate pipes of the energy storage battery integrated box 71, forming a cooling water circulation that continuously removes heat from the battery. Meanwhile, the heat generated by the energy storage converter 6 during operation is cooled by external low-temperature air guided by the second air guide plate 61. The low-temperature air enters the energy storage converter 6, exchanges heat with the heat-generating components, and becomes hot air, which is then discharged to the outside of the equipment through the second louver 821 of the rear perforated plate 82. The low-temperature air required for the operation of the air conditioner 5 is guided by the first air guide plate 53 and enters through the first louver 811 of the first inspection door 81. After absorbing the heat inside the air conditioner 5, it becomes hot air and is discharged through the second louver 821 of the rear perforated plate 82. Through the double isolation of the partition plate 21 and the partition plate 4, airflow interference between the heat dissipation area and the energy storage area, and between the air conditioner 5 and the energy storage converter 6 is effectively avoided, preventing high-temperature air from lingering inside the equipment. The air intake and exhaust of the air conditioner 5 are completely independent from the air intake and exhaust of the energy storage converter 6, without interference between them, thus completely eliminating the problem of mixed air between the air conditioner 5 and the energy storage converter 6.

[0031] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A modular stacked energy storage unit, characterized in that, The system includes a base (1), a frame (2), a partition plate (21), an air conditioner (5), an energy storage converter (6), and an outer casing (8). The frame (2) is fixed on the base (1), and the partition plate (21) is fixed inside the frame (2). The frame (2) is divided into an independent heat dissipation area and an energy storage area by the partition plate (21). The air conditioner (5) and the energy storage converter (6) are installed in the heat dissipation area. The outer casing (8) covers the outside of the frame (2). A partition plate (4) is horizontally fixed inside the frame (2) located in the heat dissipation area. The partition plate (4) divides the heat dissipation area into two independent sealed areas, upper and lower. (5) The energy storage converter (6) is located on both sides of the partition (4). A first air guide plate (53) is provided at the air inlet of the air conditioner (5). A second air guide plate (61) is provided at the air inlet of the energy storage converter (6). A first inspection door (81) and a rear hole plate (82) are provided at the heat dissipation area of ​​the outer casing (8). Multiple ventilation holes are provided on the first inspection door (81). The first inspection door (81) and the rear hole plate (82) are located on the front and rear sides of the outer casing (8), respectively. The first air guide plate (53) and the second air guide plate (61) are both in contact with the inner side of the first inspection door (81).

2. The modular stacked energy storage unit according to claim 1, characterized in that, An independent ventilation channel is formed between the air conditioner (5) and the first air guide plate (53), and an independent ventilation channel is formed between the second air guide plate (61) and the energy storage converter (6).

3. The modular stacked energy storage unit according to claim 1, characterized in that, A battery management system (9) is provided in the energy storage area of ​​the frame (2). Multiple brackets (7) are arranged vertically below the battery management system (9). An energy storage battery integrated box (71) is fixed on the bracket (7). The energy storage battery is placed inside the energy storage battery integrated box (71) and electrically connected to the battery management system (9).

4. The modular stacked energy storage unit according to claim 3, characterized in that, The air conditioner (5) is connected to an outlet pipe (51) and a return pipe (52). The outlet pipe (51) is provided with multiple outlet branch pipes (511), and the return pipe (52) is provided with multiple return branch pipes (521). The outlet branch pipes (511) and the return branch pipes (521) are matched in pairs. The bottom plate of the energy storage battery integrated box (71) is provided with a pipe. The outlet pipe (51) and the return pipe (52) are respectively fixed on the water inlet end and the water outlet end of the pipe on the bottom plate of the energy storage battery integrated box (71). The outlet pipe (51) and the return pipe (52) achieve cooling water circulation through the matching outlet branch pipes (511) and the return branch pipes (521).

5. The modular stacked energy storage unit according to claim 4, characterized in that, The outflow branch pipe (511) and the return branch pipe (521) are arranged in parallel in multiple pairs.

6. The modular stacked energy storage unit according to claim 1, characterized in that, The upper end of the frame (2) is provided with a connector (3), and the outer shell (8) is fixedly connected to the connector (3) by bolts.

7. The modular stacked energy storage unit according to claim 1, characterized in that, The outer casing (8) is provided with a second inspection door (83) at the location of the energy storage area, and the second inspection door (83) and the first inspection door (81) are located on the same side.

8. The modular stacked energy storage unit according to claim 7, characterized in that, The first inspection door (81) and the second inspection door (83) are connected to the outer casing (8) by hinges. The first inspection door (81) has a first louver (811) fixed inside, and the rear perforated plate (82) has a second louver (821) fixed inside. Both the first louver (811) and the second louver (821) adopt an inclined structure, with the blades inclined towards the outside of the cabinet.

9. The modular stacked energy storage unit according to claim 8, characterized in that, There are two first louvers (811), which are arranged vertically and correspond to the ventilation channels formed by the first air guide plate (53) and the second air guide plate (61), respectively.

10. The modular stacked energy storage unit according to claim 8, characterized in that, There are two second louvers (821), which are arranged vertically and correspond to the ventilation channels formed by the first air guide plate (53) and the second air guide plate (61), respectively.

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