Lithium iron phosphate battery energy storage integrated battery pack

Abstract

The utility model relates to the field of integrated battery pack discloses a kind of lithium iron phosphate battery energy storage integrated battery pack, including several partition plates, several The partition plate is fixed in the inside bottom surface of battery box, the inside of battery box is provided with several lithium battery bodies, the lithium battery body sliding fit between battery box and partition plate, the top surface of the partition plate is equipped with rotating groove, the inside of rotating groove is provided with bearing, the inside of bearing inner ring is fixed with rotating column, the top of rotating column is fixed with rotating plate, the top surface of rotating plate is fixed with knob, the both sides of lithium battery body are respectively fixed with limit slot. The cooperation of clamping strip and clamping groove realizes the accurate positioning of lithium battery body horizontal position, and the rotating plate of rotating into limit slot is used to limit longitudinal displacement, and the double limiting mechanism effectively prevents any shaking of lithium battery body in battery box, significantly improves the structural stability after installation.

Description

Technical Field

[0001] This utility model relates to the technical field of integrated battery packs, specifically to an integrated battery pack for energy storage using lithium iron phosphate batteries. Background Technology

[0002] The lithium iron phosphate (LFP) battery energy storage integrated battery pack is a highly efficient and safe energy storage solution. It utilizes highly stable LFP cells, featuring long cycle life, high energy density, and excellent thermal stability. The battery pack employs a modular design and integrates an intelligent battery management system that monitors parameters such as voltage, current, and temperature in real time, ensuring safe and reliable charging and discharging.

[0003] According to Chinese Patent No. CN220628001U, a lithium iron phosphate battery energy storage integrated battery pack includes a lower housing with at least one opening for placing lithium iron phosphate battery cells and an upper housing cover for closing and opening the lower housing opening. The lower housing has heat dissipation vents on both sides, and each of the two heat dissipation vents has a dust filter inside. Each of the two dust filters is covered with a folded rubber cover. Multiple heat dissipation holes are equidistantly spaced at the folds of each of the two folded rubber covers. A waterproof plate is connected to the end of each of the two folded rubber covers away from the dust filter. An aluminum heat dissipation partition is provided at the bottom of the lower housing.

[0004] In the above solution, the lithium iron phosphate battery cell pack is placed inside the lower casing, which still has the following disadvantages: after the lithium iron phosphate battery cell pack is placed inside the lower casing, there is no movement restriction on the lithium iron phosphate battery cell pack. It may shake inside the lower casing due to external force. Utility Model Content

[0005] The purpose of this invention is to provide an integrated battery pack for lithium iron phosphate battery energy storage, in order to solve the problem that the lithium iron phosphate battery cells may shake inside the lower casing due to external forces.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a lithium iron phosphate battery energy storage integrated battery pack, comprising several partition plates, all of which are fixed to the inner bottom surface of a battery box. Several lithium battery bodies are disposed inside the battery box, and the lithium battery bodies are slidably fitted between the battery box and the partition plates. A rotating groove is formed on the top surface of the partition plate, and a bearing is disposed inside the rotating groove. A rotating column is fixed inside the inner ring of the bearing, and a rotating plate is fixed to the top of the rotating column. A knob is fixed to the top surface of the rotating plate. Limiting grooves are fixed on both sides of the lithium battery bodies, and the rotating plate is slidably fitted with the limiting grooves.

[0007] Preferably, two snap-fit ​​strips are fixed on both sides of the lithium battery body, and two snap-fit ​​slots are opened on both sides of the partition plate and both sides of the inside of the battery box, with the snap-fit ​​strips slidingly engaging with the snap-fit ​​slots.

[0008] Preferably, the top surface of the lithium battery body is fixed with two limiting folding plates, and the top surface of the lithium battery body is slidably provided with a lifting belt. The limiting folding plates and the lifting belt are slidably engaged. Limiting plates are fixed at both ends of the lifting belt, and the top surface of the lifting belt is fixed with two limiting posts, both of which are located between the two limiting folding plates.

[0009] Preferably, a cover is provided on the top of the battery box, and fixing holes are respectively provided at the four corners of the top surface of the cover. Positioning holes are respectively provided at the four corners of the top surface of the battery box. Fixing bolts are rotatably inserted into the fixing holes, and the bottom end of the fixing bolts passes through the positioning holes and is threaded with nuts.

[0010] Preferably, the bottom surface of the battery box has several ventilation holes, and the top surface of the partition plate has two connecting holes, with the central axes of the ventilation holes and the connecting holes aligned on the same straight line.

[0011] Preferably, the bottom surface of the battery box is fixed with two raised bases.

[0012] Compared with existing technologies, a lithium iron phosphate battery energy storage integrated battery pack adopting the above technical solution has the following beneficial effects:

[0013] 1. The precise lateral positioning of the lithium battery body is achieved through the cooperation of the snap-fit ​​strip and the snap-fit ​​groove. At the same time, the longitudinal displacement is restricted by the rotating plate that is turned into the limiting groove. This dual limiting mechanism effectively prevents any shaking of the lithium battery body in the battery box and significantly improves the structural stability after installation.

[0014] 2. When installing the lithium battery body, the operator lifts the lifting strap upwards, allowing it to slide along the inside of the limiting plate. The limiting plate design effectively prevents the lifting strap from accidentally coming out of the limiting plate. When the lifting strap is laid flat on top of the lithium battery body, the limiting post will abut against the inside of the limiting plate, ensuring that the lifting strap always remains above the lithium battery body. This facilitates handling and avoids interfering with subsequent battery wiring work.

[0015] 3. After the lithium battery body is installed, the staff will align the cover with the top of the battery box and fasten it. Then, the fixing bolts will pass through the fixing holes of the cover and the positioning holes of the battery box in sequence, and be locked with nuts to make the cover firmly pressed on the battery box, effectively improving the overall sealing and structural strength of the battery box.

[0016] Fourth, the raised base at the bottom of the battery box maintains a certain distance between the battery box and the ground. This design, together with the convection channel formed by the connection holes and ventilation holes, can effectively promote heat dissipation. When the lithium battery body is working, the heat generated heats the internal air. The hot air will naturally rise and be discharged through the top of the connection hole. At the same time, cooler external air will enter through the ventilation holes, forming a continuous airflow circulation. This passive heat dissipation structure can achieve efficient heat exchange without additional energy, ensuring that the lithium battery body is always kept within a suitable operating temperature range. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0018] Figure 2 This is a breakdown diagram of an embodiment.

[0019] Figure 3 This is a schematic diagram showing the disassembly of the partition plate and snap-fit ​​strip in an embodiment.

[0020] Figure 4 This is a schematic diagram showing the disassembly of the lifting strap and limiting fold plate in an embodiment.

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point A in the middle.

[0022] In the diagram: 1. Battery box; 2. Divider plate; 3. Lithium battery body; 4. Rotating groove; 5. Bearing; 6. Rotating column; 7. Rotating plate; 8. Knob; 9. Limiting groove; 10. Snap-fit ​​strip; 11. Snap-fit ​​groove; 12. Limiting folding plate; 13. Lifting strap; 14. Limiting plate; 15. Limiting column; 16. Ventilation hole; 17. Connecting hole; 18. Box cover; 19. Fixing hole; 20. Positioning hole; 21. Fixing bolt; 22. Nut; 23. Lifting base. Detailed Implementation

[0023] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, a lithium iron phosphate battery energy storage integrated battery pack includes several partition plates 2, all of which are fixed to the bottom surface of the battery box 1. Several lithium battery bodies 3 are arranged inside the battery box 1, and the lithium battery bodies 3 are slidably fitted between the battery box 1 and the partition plates 2. A rotating groove 4 is opened on the top surface of the partition plate 2, and a bearing 5 is arranged inside the rotating groove 4. A rotating column 6 is fixed inside the inner ring of the bearing 5. A rotating plate 7 is fixed at the top of the rotating column 6, and a knob 8 is fixed on the top surface of the rotating plate 7. Limiting grooves 9 are fixed on both sides of the lithium battery bodies 3, and the rotating plate 7 is slidably fitted with the limiting grooves 9. Two snap-fit ​​strips 10 are fixed on both sides of the lithium battery bodies 3. Two snap-fit ​​grooves 11 are opened on both sides of the partition plate 2 and both sides of the inside of the battery box 1, and the snap-fit ​​strips 10 are slidably fitted with the snap-fit ​​grooves 11.

[0025] In use, the staff arranges multiple lithium battery bodies 3 in an orderly manner on both sides of the partition plate 2 inside the battery box 1. When the lithium battery body 3 slides down along the gap between the partition plates 2, the snap-fit ​​strip 10 on its side will be precisely embedded in the corresponding snap-fit ​​groove 11, thereby effectively restraining the lateral movement of the lithium battery body 3. After the bottom of the lithium battery body 3 is completely attached to the bottom surface of the battery box 1, the staff rotates the knob 8 to drive the rotating plate 7 and the rotating column 6 to rotate synchronously, so that the rotating plate 7 can slide smoothly into the limiting groove 9, and complete the final fixation of the lithium battery body 3.

[0026] The precise lateral positioning of the lithium battery body 3 is achieved through the cooperation of the snap-fit ​​strip 10 and the snap-fit ​​groove 11. At the same time, the longitudinal displacement is limited by the rotating plate 7 that is inserted into the limiting groove 9. This dual limiting mechanism effectively prevents any shaking of the lithium battery body 3 in the battery box 1 and significantly improves the structural stability after installation.

[0027] like Figure 4 As shown, two limiting baffles 12 are fixed on the top surface of the lithium battery body 3, and a lifting belt 13 is slidably arranged on the top surface of the lithium battery body 3. The limiting baffles 12 and the lifting belt 13 are slidably engaged. Limiting plates 14 are fixed at both ends of the lifting belt 13, and two limiting posts 15 are fixed on the top surface of the lifting belt 13. Both limiting posts 15 are located between the two limiting baffles 12.

[0028] During use, when installing the lithium battery body 3, the operator lifts the lifting strap 13 upwards, allowing it to slide along the inside of the limiting plate 12. The design of the limiting plate 14 effectively prevents the lifting strap 13 from accidentally coming out of the limiting plate 12. When the lifting strap 13 is laid flat on top of the lithium battery body 3, the limiting post 15 will abut against the inside of the limiting plate 12, ensuring that the lifting strap 13 always remains above the lithium battery body 3, which facilitates handling and avoids interfering with subsequent battery wiring.

[0029] like Figure 2As shown, a cover 18 is provided on the top of the battery box 1. Fixing holes 19 are provided at the four corners of the top surface of the cover 18. Positioning holes 20 are provided at the four corners of the top surface of the battery box 1. Fixing bolts 21 are inserted into the fixing holes 19. The bottom end of the fixing bolts 21 passes through the positioning holes 20 and is threaded with nuts 22.

[0030] During use, after the lithium battery body 3 is installed, the staff will align the cover 18 with the top of the battery box 1 and fasten it. Then, the fixing bolts 21 will pass through the fixing holes 19 of the cover 18 and the positioning holes 20 of the battery box 1 in sequence, and be locked by the nuts 22, so that the cover 18 is firmly pressed on the battery box 1, which effectively improves the overall sealing and structural strength of the battery box 1.

[0031] like Figure 2 and Figure 4 As shown, the bottom surface of the battery box 1 has several ventilation holes 16, the top surface of the partition plate 2 has two connecting holes 17, the central axis of the ventilation holes 16 and the connecting holes 17 are on the same straight line, and the bottom surface of the battery box 1 has two raised bases 23 fixed.

[0032] During use, the raised base 23 at the bottom of the battery box 1 keeps the battery box 1 at a certain distance from the ground. This design, together with the convection channel formed by the connection hole 17 and the ventilation hole 16, can effectively promote heat dissipation. When the lithium battery body 3 is working, the heat generated heats the internal air. The hot air will rise naturally and be discharged through the top of the connection hole 17. At the same time, the cooler external air is replenished from the ventilation hole 16, forming a continuous airflow circulation. This passive heat dissipation structure can achieve efficient heat exchange without additional energy, ensuring that the lithium battery body 3 is always kept within a suitable operating temperature range.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lithium iron phosphate battery energy storage integrated battery pack, comprising a plurality of partition plates (2), wherein the plurality of partition plates (2) are all fixed to the inner bottom surface of a battery box (1), characterized in that, The battery box (1) is provided with a number of lithium battery bodies (3). The lithium battery bodies (3) are slidably fitted between the battery box (1) and the partition plate (2). The top surface of the partition plate (2) is provided with a rotating groove (4). The rotating groove (4) is provided with a bearing (5). The inner ring of the bearing (5) is fixed with a rotating column (6). The top of the rotating column (6) is fixed with a rotating plate (7). The top surface of the rotating plate (7) is fixed with a knob (8). The two sides of the lithium battery body (3) are respectively fixed with limiting grooves (9). The rotating plate (7) and the limiting groove (9) are slidably fitted.

2. The lithium iron phosphate battery energy storage integrated battery pack according to claim 1, characterized in that: Two snap-fit ​​strips (10) are fixed on both sides of the lithium battery body (3). Two snap-fit ​​grooves (11) are opened on both sides of the partition plate (2) and the inside sides of the battery box (1). The snap-fit ​​strips (10) and the snap-fit ​​grooves (11) are slidably engaged.

3. The lithium iron phosphate battery energy storage integrated battery pack according to claim 1, characterized in that: The top surface of the lithium battery body (3) is fixed with two limiting baffles (12), and the top surface of the lithium battery body (3) is slidably provided with a lifting belt (13). The limiting baffles (12) and the lifting belt (13) are slidably engaged. The two ends of the lifting belt (13) are respectively fixed with limiting plates (14), and the top surface of the lifting belt (13) is fixed with two limiting posts (15). The two limiting posts (15) are both located between the two limiting baffles (12).

4. The lithium iron phosphate battery energy storage integrated battery pack according to claim 1, characterized in that: The battery box (1) is provided with a cover (18) on top. The four corners of the top surface of the cover (18) are provided with fixing holes (19) and the four corners of the top surface of the battery box (1) are provided with positioning holes (20). A fixing bolt (21) is inserted into the fixing hole (19) and the bottom end of the fixing bolt (21) passes through the positioning hole (20) and is threaded with a nut (22).

5. The lithium iron phosphate battery energy storage integrated battery pack according to claim 1, characterized in that: The battery box (1) has several ventilation holes (16) on its inner bottom surface, and the partition plate (2) has two connecting holes (17) on its top surface. The central axes of the ventilation holes (16) and the connecting holes (17) are on the same straight line.

6. The lithium iron phosphate battery energy storage integrated battery pack according to claim 1, characterized in that: The bottom surface of the battery box (1) is fixed with two raised bases (23).

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