Container type lithium battery energy storage group

Abstract

The application discloses a container type lithium battery energy storage group and relates to the technical field of lithium batteries. The technical key points of the application include a battery box shell, a fixed frame fixed equidistantly in the inside of the battery box shell, lithium battery groups arranged between the fixed frames, a door cover arranged on the front face of the battery box shell, a rain blocking block fixed on the back face of the upper end of the battery box shell, a limiting shaft sleeved in the inside of the rain blocking block, and through hole blocks fixed respectively on the upper and lower ends of the side face of the limiting shaft. The technical effect is that the heat dissipation fan is started to guide the cold air outside into the inside of the battery box shell through the filter screen block, the filter screen block and the drying agent bag filter and dehumidify the gas respectively, the position of the two through hole blocks is adjusted by rotating the limiting shaft, the device can filter and prevent moisture for the lithium battery group, the position of the two through hole blocks is adjusted by rotating the limiting shaft, the drying agent bag is dried, and the air permeable block is back flushed to clean dust.

Description

Technical Field

[0001] This invention relates to the field of lithium battery technology, specifically to a containerized lithium battery energy storage pack. Background Technology

[0002] Energy storage battery systems are an important component and key supporting technology for smart grids, energy systems with a high proportion of renewable energy, and "Internet + smart energy." These systems can provide various services for grid operation, including peak shaving, frequency regulation, backup, black start, and demand response support. They are an important means to improve the flexibility, economy, and security of traditional power systems; significantly improve the absorption of renewable energy sources such as wind and solar power; support distributed power and microgrids; and are a key technology for promoting the shift of the primary energy source from fossil fuels to renewable energy. Furthermore, they can promote open sharing and flexible trading of energy production and consumption, and achieve multi-energy synergy, forming the core foundation for building the energy internet and promoting the development of new energy business models.

[0003] In the prior art, such as the application with application number CN202322685590.3, which discloses a containerized lithium battery energy storage pack, a battery box shell and a top plate are included. The top plate is provided on the top of the battery box shell, and a door cover is connected to one side of the battery box shell by a hinge. A steel frame is provided inside the battery box shell, and the lithium battery pack is arranged inside the steel frame. Cooling fans are provided on both the left and right sides of the battery box shell. This device can fix the lithium battery pack by embedding the round-headed protrusions on the bottom surface of the pressure block into the gaps between the lithium batteries. The pressure block and the locking block cooperate vertically to separate the lithium battery pack, which can prevent the lithium batteries from being tightly attached together, thus reducing the heat dissipation capacity and the risk of short circuit in the lithium battery pack, thereby improving safety performance.

[0004] However, in existing technologies, such as the containerized lithium battery energy storage pack mentioned in application number CN202322685590.3, although it can reduce the risk of short circuit in lithium battery packs during actual use, it cannot prevent moisture from the lithium battery packs. Furthermore, when cleaning the heat dissipation vent filter, it is necessary to manually disassemble the filter before cleaning, which is a rather cumbersome cleaning method. Therefore, it needs to be improved. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a containerized lithium battery energy storage pack.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a containerized lithium battery energy storage pack, comprising a battery box shell, wherein fixed frames are equidistantly fixed inside the battery box shell, and a lithium battery pack is arranged between the fixed frames. A door cover is provided on the front of the battery box shell, and a rain-blocking block is fixed on the back of the upper end of the battery box shell. A limiting shaft is sleeved inside the rain-blocking block, and through-hole blocks are fixed at the upper and lower ends of the side of the limiting shaft. The through-hole blocks are semi-circular, and a vent block is fixed inside the through-hole blocks. A convex rod is sleeved inside the vent block, and a filter screen block sleeved inside the other end of the convex rod is fixed. A desiccant pack is placed between the vent block and the filter screen block, and a cooling fan corresponding to the filter screen block is fixed on the rain-blocking block.

[0009] Preferably, a second fixing block is fixedly connected to the side of the through-hole block, a convex ring is movably sleeved inside the second fixing block, a hollow rod is fixedly connected to the top of the convex ring, and rotating fan blades are fixedly connected to both ends of the outer surface of the hollow rod, with the other end of the rotating fan blades contacting the filter screen block.

[0010] Preferably, the hollow rod has a spiral groove inside, and an iron insert is sleeved inside the hollow rod. A round-headed protrusion is fixed on the side of the iron insert, and the other end of the round-headed protrusion extends into the spiral groove.

[0011] Preferably, the lower end of the iron insert rod passes through the second fixing block and is fixedly sleeved with a movable block. The bottom of the movable block is fixedly connected to a second rigid spring. The lower end of the second rigid spring is fixedly connected to a first fixing block. The side of the first fixing block is fixedly connected to the side of the through hole block.

[0012] Preferably, a locking block is movably sleeved on the upper end of the iron plug, a magnet is fixed on the top of the locking block, and the side of the magnet is fixedly connected to the side of the battery box shell.

[0013] Preferably, the through-hole block has a side groove, and a sloping semi-ring block for placing a desiccant packet is movably sleeved inside the side groove. A movable block is fixed to the bottom of the sloping semi-ring block, and one end of the movable block extends into the side groove and is fixedly connected to the movable block.

[0014] Preferably, a sloping push block is fixedly connected to the middle of the lower end of the filter block, and the other end of the sloping push block is in contact with the sloping surface of the sloping semi-ring block.

[0015] Preferably, a first rigid spring is movably sleeved on the outer surface of the convex rod between the filter block and the air vent block. One end of the first rigid spring is fixedly connected to the air vent block, and the other end of the first rigid spring is fixedly connected to the filter block.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a containerized lithium battery energy storage pack, which has the following features:

[0018] Beneficial effects:

[0019] 1. This invention activates a cooling fan, which draws cool outside air through a filter block into the battery box casing. The filter block and desiccant pack then filter and dehumidify the air. By rotating a limiting shaft to change the position of the two through-hole blocks, the device can not only filter and prevent moisture from the lithium battery pack, but also dry the desiccant pack and backflush the vent blocks to remove dust.

[0020] 2. In this invention, when the desiccant pack inside the through-hole block becomes heavier due to dehumidifying the gas, it causes the desiccant pack to press down on the inclined semi-ring block. This causes the inclined semi-ring block to move the iron rod out of the hole block via the moving block and the movable block. Simultaneously, the iron rod causes the hollow rod and the rotating fan blade to rotate via the round head protrusion and the spiral groove. This allows the cooling fan, which is constantly blowing air onto the filter block, to blow on the rotating fan blade and the hollow rod. Consequently, the two through-hole blocks can rotate and switch due to the force of the cooling fan blowing on the rotating fan blade and the weight of the desiccant pack itself, thus achieving automatic replacement and drying of the desiccant pack.

[0021] 3. When the filter block is clogged by external dust, the cooling fan will push the filter block to move, and the inclined push block will push the inclined semi-ring block to move downward. The inclined semi-ring block will drive the iron rod to move downward and disengage from the hole block through the moving block and the movable block. The iron rod will drive the hollow rod and the rotating fan blade to rotate through the spiral groove and the round head protrusion. This allows the cooling fan to drive the through hole block to rotate and adjust its position through the rotating fan blade, thereby achieving the purpose of automatically replacing the through hole block when the filter block is clogged. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure on the back of the present invention;

[0024] Figure 3 This is a side cross-sectional view of the rain-blocking block of the present invention;

[0025] Figure 4 This is a schematic diagram of the through-hole block of the present invention;

[0026] Figure 5 This is a side cross-sectional view of the through-hole block of the present invention;

[0027] Figure 6 This is a side cross-sectional view of the hollow rod of the present invention;

[0028] Figure 7 This is a partially enlarged structural diagram of the through-hole block of the present invention;

[0029] Figure 8 This is a partially enlarged structural diagram of the iron insert rod and hollow rod of the present invention;

[0030] Figure 9 For the present invention Figure 3 A magnified view of the structure at point A in the middle;

[0031] Figure 10 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0032] In the diagram: 1. Battery box outer shell; 2. Fixing frame; 3. Lithium battery pack; 4. Door cover; 5. Rainproof block; 6. Limiting shaft; 7. Through hole block; 8. Ventilation block; 9. Convex rod; 10. Filter block; 11. First rigid spring; 12. Desiccant pack; 13. Cooling fan; 14. Side slot; 15. Moving block; 16. Inclined semi-ring block; 17. Inclined push block; 18. Movable block; 19. Second rigid spring; 20. First fixing block; 21. Iron insert rod; 22. Second fixing block; 23. Convex ring; 24. Hollow rod; 25. Rotating fan blade; 26. Spiral groove; 27. Round head protrusion; 28. Magnet block; 29. ​​Locking hole block. Detailed Implementation

[0033] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0034] Example 1, as Figures 1-10As shown, a containerized lithium battery energy storage pack includes a battery box shell 1. Inside the battery box shell 1, mounting brackets 2 are fixed at equal intervals. A lithium battery pack 3 is arranged between the mounting brackets 2. A door cover 4 is provided on the front of the battery box shell 1. A rain-blocking block 5 is fixed to the back of the upper end of the battery box shell 1. A limiting shaft 6 is sleeved inside the rain-blocking block 5. Through-hole blocks 7 are fixed to the upper and lower ends of the side of the limiting shaft 6. The through-hole blocks 7 are semi-circular. A vent block 8 is fixed inside the through-hole blocks 7. A convex rod 9 is sleeved inside the vent block 8. A filter screen block 10, sleeved inside the through-hole block 7, is fixed to the other end of the convex rod 9. A desiccant pack 12 is placed between the vent block 8 and the filter screen block 10. A cooling fan 13, corresponding to the filter screen block 10, is fixed on the rain-blocking block 5. By closing the door cover 4 and then starting the cooling fan 13, the cooling fan 13 guides cold air from the outside through the filter screen block 10. The inside of the through-hole block 7 comes into contact with the desiccant pack 12, thereby allowing the filter block 10 to filter dust from the air and the desiccant pack 12 to absorb moisture from the gas. The moisture-absorbing gas enters the battery box shell 1 through the vent block 8. The gas inside the battery box shell 1 is cooled by the fixing frame 2, which causes the gas to heat up. The heated gas then enters the through-hole block 7 through the vent block 8 inside the lower through-hole block 7. At this time, the heated gas can dry the desiccant pack 12 inside the lower through-hole block 7. The gas then exits through the vent block 8 inside the lower through-hole block 7, thereby allowing the gas to backflush and clean the vent block 8. This design allows the device to not only filter and prevent moisture from the lithium battery pack 3, but also rotate the limiting shaft 6 to change the position of the two through-hole blocks 7, dry the desiccant pack 12, and backflush and clean the dust from the vent block 8.

[0035] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with reference to the specific working method described in detail.

[0036] Example 2, as Figures 6-10 As shown, a second fixing block 22 is fixedly connected to the side of the through-hole block 7. A convex ring 23 is movably sleeved inside the second fixing block 22. A hollow rod 24 is fixedly connected to the top of the convex ring 23. Rotating fan blades 25 are fixedly connected to both ends of the outer surface of the hollow rod 24. The other end of the rotating fan blades 25 is in contact with the filter block 10. When the hollow rod 24 rotates, it causes the rotating fan blades 25 to deflect. At this time, since the cooling fan 13 is blowing air onto the filter block 10, the cooling fan 13 will blow the second fixing block 22 and the through-hole block 7 to rotate to one side through the deflected rotating fan blades 25, the hollow rod 24 and the convex ring 23, thereby achieving the purpose of rotating the through-hole block 7.

[0037] The hollow rod 24 has a spiral groove 26 inside, and an iron insert rod 21 is sleeved inside the hollow rod 24. A round-headed protrusion 27 is fixed on the side of the iron insert rod 21, and the other end of the round-headed protrusion 27 extends into the spiral groove 26. Through the design of the spiral groove 26 and the round-headed protrusion 27, when the iron insert rod 21 moves downward, it causes the round-headed protrusion 27 to move downward along the inner wall of the spiral groove 26, thereby causing the round-headed protrusion 27 to drive the hollow rod 24 and the rotating fan blade 25 to deflect through the spiral groove 26.

[0038] The lower end of the iron rod 21 passes through the second fixed block 22 and is fixedly sleeved with the movable block 18. The bottom of the movable block 18 is fixedly connected to the second rigid spring 19. The lower end of the second rigid spring 19 is fixedly connected to the first fixed block 20. The side of the first fixed block 20 is fixedly connected to the side of the through hole block 7. At this time, the second rigid spring 19 is in a stretched state, so that the second rigid spring 19 can pull the iron rod 21 downward through the movable block 18, thereby achieving the purpose of moving the iron rod 21 downward.

[0039] The upper end of the iron plug 21 is movably fitted with a locking block 29, and a magnet block 28 is fixed to the top of the locking block 29. The side of the magnet block 28 is fixedly connected to the side of the battery box shell 1. Through the design of the iron plug 21, the locking block 29 and the magnet block 28, the magnet block 28 can attract the iron plug 21 into the interior of the locking block 29 to fix the second fixing block 22 and the through hole block 7, thereby achieving the purpose of fixing the through hole block 7.

[0040] The through-hole block 7 has a side slot 14 inside, and a sloping semi-annular block 16 for holding a desiccant pack 12 is movably fitted inside the side slot 14. A movable block 15 is fixed to the bottom of the sloping semi-annular block 16, and one end of the movable block 18 extends into the side slot 14 and is fixedly connected to the movable block 15. When the desiccant pack 12 inside the through-hole block 7 becomes heavier due to dehumidifying the gas, it will cause the desiccant pack 12 to squeeze the sloping semi-annular block 16 downward. This causes the sloping semi-annular block 16 to push the movable block 18 downward along the inner wall of the side slot 14 via the movable block 15. This causes the movable block 18 to move the iron insert rod 21 downward. At this time, the second rigid spring 19 can pull the movable block 18 downward, thereby making the movable block 18 move downward. The movable block 18 can more easily pull the iron insert rod 21 out of the inside of the locking block 29, thereby releasing the fixing effect on the through hole block 7. At the same time, the iron insert rod 21 will drive the hollow rod 24 and the rotating fan blade 25 to rotate through the round head protrusion 27 and the spiral groove 26. This will allow the cooling fan 13, which is constantly blowing air on the filter block 10, to blow the rotating fan blade 25 and the hollow rod 24. This will cause the hollow rod 24 to drive the through hole block 7 to rotate to one side through the convex ring 23 and the second fixing block 22. This will allow the two through hole blocks 7 to rotate and switch due to the force of the cooling fan 13 blowing the rotating fan blade 25 and the weight of the desiccant pack 12. This will cause the through hole block 7 to drive the limiting shaft 6 to rotate along the inner wall of the rain blocking block 5.

[0041] Based on Embodiment 2, the solution in Embodiment 2 will be further described in detail below, with reference to the specific working method described in detail.

[0042] Example 3, as Figure 10As shown, a sloping push block 17 is fixedly connected to the middle of the lower end of the filter block 10. The other end of the sloping push block 17 contacts the sloping surface of the sloping semi-ring block 16. When the filter block 10 is blocked by external dust, the cooling fan 13 will push the filter block 10 to move along the inner wall of the through hole block 7. This will cause the filter block 10 to drive the sloping push block 17 to push the sloping semi-ring block 16 downward. This will cause the sloping semi-ring block 16 to drive the iron rod 21 downward through the moving block 15 and the movable block 18. This will cause the iron rod 21 to disengage from the inside of the locking block 29. The iron rod 21 will then drive the hollow rod 24 and the rotating fan blade 25 to rotate through the spiral groove 26 and the round head protrusion 27. This will allow the cooling fan 13 to rotate the through hole block 7 through the rotating fan blade 25. When the iron rod 21 disengages from the magnet block 28, the second rigid spring 19 will pull the iron rod through the movable block 18. 21 moves downward, causing the iron rod 21 to pull the round-headed protrusion 27 to move the lowest end of the spiral groove 26. This causes the iron rod 21 to rotate the rotating fan blade 25 ninety degrees through the round-headed protrusion 27 and the spiral groove 26, so that the rotating fan blade 25 is laterally aligned with the cooling fan 13. This allows the other through-hole block 7 to cut the air blown by the cooling fan 13 to the filter block 10 when the rotating fan blade 25 is rotated. Then, when the other through-hole block 7 rotates the iron rod 21 to the magnet block 28 through the second fixing block 22, the magnet block 28 will attract the iron rod 21 into the inside of the locking block 29 to fix the through-hole block 7. At the same time, the iron rod 21 will drive the hollow rod 24 and the rotating fan blade 25 to rotate through the round-headed protrusion 27 and the spiral groove 26, so that the rotating fan blade 25 is vertically aligned with the cooling fan 13. This achieves the purpose of automatically replacing the through-hole block 7 when the filter block 10 is blocked.

[0043] like Figure 7 As shown, a first rigid spring 11 is movably sleeved on the outer surface of the convex rod 9 between the filter block 10 and the vent block 8. One end of the first rigid spring 11 is fixedly connected to the vent block 8, and the other end of the first rigid spring 11 is fixedly connected to the filter block 10. Through the design of the first rigid spring 11, the first rigid spring 11 can apply pressure to the filter block 10, so that the gas blown by the cooling fan 13 cannot blow the filter block 10 into the through hole block 7 at will.

[0044] In practical use, in a containerized lithium battery energy storage group, when the filter block 10 is clogged by external dust, the cooling fan 13 pushes the filter block 10 into the through-hole block 7. This causes the filter block 10 to push the inclined semi-ring block 16 downward via the inclined push block 17. The inclined semi-ring block 16 then moves the iron insert rod 21 downward through the moving block 15 and the movable block 18, disengaging it from the inside of the locking block 29. The iron insert rod 21 then deflects the hollow rod 24 and the rotating fan blade 25 via the spiral groove 26 and the round head protrusion 27. At this time, the cooling fan 13, which continuously blows air onto the filter block 10, can blow the hollow rod 24 through the rotating fan blade 25. This causes the hollow rod 24 to push the through-hole block 7 to rotate to one side via the convex ring 23 and the second fixed block 22. Thus, the two through-hole blocks 7 can be affected by the force of the cooling fan 13 blowing the rotating fan blade 25. The desiccant pack 12 rotates under its own weight, causing the through-hole block 7 to drive the limiting shaft 6 to rotate along the inner wall of the rain-blocking block 5. When the iron rod 21 disengages from the magnet block 28, the second rigid spring 19 pulls the iron rod 21 downward through the movable block 18. This causes the iron rod 21 to drive the rotating fan blade 25 to align laterally with the cooling fan 13 via the round head protrusion 27 and the spiral groove 26. When the through-hole block 7 drives the iron rod 21 to rotate to the magnet block 28 via the second fixing block 22, the magnet block 28 will attract the iron rod 21 into the inside of the locking block 29 to fix the through-hole block 7. This causes the iron rod 21 to drive the hollow rod 24 to rotate via the round head protrusion 27 and the spiral groove 26, so that the rotating fan blade 25 aligns vertically with the cooling fan 13. This achieves the purpose of automatically replacing the through-hole block 7 when the filter block 10 is blocked.

[0045] When the desiccant pack 12 inside the through-hole block 7 becomes heavier due to dehumidifying the gas, it causes the desiccant pack 12 to press the inclined semi-annular block 16 downwards. This causes the inclined semi-annular block 16 to push the iron rod 21 downwards through the moving block 15 and the movable block 18, disengaging it from the inside of the locking block 29. The iron rod 21 then drives the hollow rod 24 to rotate through the round head protrusion 27 and the spiral groove 26, causing the rotating fan blade 25 to deflect. This causes the cooling fan 13 to blow the through-hole block 7 to rotate to one side through the rotating fan blade 25. This continues until the other through-hole block 7, along with the iron rod 21, is attracted and fixed by the magnet block 28 and the locking block 29, thus achieving the purpose of automatically replacing and drying the desiccant pack 12.

[0046] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A containerized lithium battery energy storage pack, comprising a battery box shell (1), characterized in that: Inside the battery box shell (1), there are fixed brackets (2) at equal intervals. A lithium battery pack (3) is arranged between the fixed brackets (2). A door cover (4) is provided on the front of the battery box shell (1). A rain-blocking block (5) is fixed on the back of the upper end of the battery box shell (1). A limiting shaft (6) is sleeved inside the rain-blocking block (5). Through-hole blocks (7) are fixed at the upper and lower ends of the side of the limiting shaft (6). The through-hole blocks (7) are semi-circular. A vent block (8) is fixed inside the through-hole blocks (7). A convex rod (9) is sleeved inside the vent block (8). A sleeve is fixed at the other end of the convex rod (9). A filter block (10) is attached inside the through-hole block (7). A desiccant pack (12) is placed between the air-permeable block (8) and the filter block (10). A cooling fan (13) corresponding to the filter block (10) is fixed on the rain-blocking block (5). A second fixing block (22) is fixedly connected to the side of the through-hole block (7). A convex ring (23) is movably sleeved inside the second fixing block (22). A hollow rod (24) is fixedly connected to the top of the convex ring (23). Rotating fan blades (25) are fixedly connected to both ends of the outer surface of the hollow rod (24). The other end of the rotating fan blades (25) is connected to the filter block (10). 0) Contact, the hollow rod (24) has a spiral groove (26) inside, and an iron insert rod (21) is sleeved inside the hollow rod (24). A round-headed protrusion (27) is fixed on the side of the iron insert rod (21). The other end of the round-headed protrusion (27) extends into the spiral groove (26). The lower end of the iron insert rod (21) passes through the second fixed block (22) and is fixedly sleeved with a movable block (18). The bottom of the movable block (18) is fixedly connected to a second rigid spring (19). The lower end of the second rigid spring (19) is fixedly connected to a first fixed block (20). The side of the first fixed block (20) The side of the through hole block (7) is fixedly connected to the side of the iron rod (21). The upper end of the through hole block (21) is movably sleeved with a locking block (29). The top of the locking block (29) is fixed with a magnet block (28). The side of the magnet block (28) is fixedly connected to the side of the battery box shell (1). The inside of the through hole block (7) is provided with a side slot (14). The inside of the side slot (14) is movably sleeved with a sloping semi-ring block (16) for placing a desiccant pack (12). The bottom of the sloping semi-ring block (16) is fixed with a moving block (15). One end of the moving block (18) extends into the side slot (14) and is fixedly connected to the moving block (15).

2. The containerized lithium battery energy storage pack according to claim 1, characterized in that: A sloping push block (17) is fixedly connected to the middle of the lower end of the filter block (10), and the other end of the sloping push block (17) is in contact with the sloping surface of the sloping semi-ring block (16).

3. The containerized lithium battery energy storage pack according to claim 1, characterized in that: The outer surface of the convex rod (9) is movably sleeved with a first rigid spring (11) located between the filter block (10) and the air vent block (8). One end of the first rigid spring (11) is fixedly connected to the air vent block (8), and the other end of the first rigid spring (11) is fixedly connected to the filter block (10).

Images