Energy storage battery box

Abstract

The utility model discloses an energy storage battery box, and relates to the technical field of battery heat dissipation, the problem of battery heat dissipation is improved, the energy storage battery box comprises a box shell and a plurality of battery packs mounted in the box shell, each battery pack comprises a fixed frame and a plurality of battery units arranged and mounted in the fixed frame, the fixed frame comprises a holder, a plurality of fixing plates and a plurality of fixing plates, the battery case is used for accommodating a plurality of battery units and comprises a bottom plate and long side plates fixed on two sides of the bottom plate; the anti-falling part is arranged at the upper end of the holder and is used for preventing the plurality of battery units from being separated from the holder; the heat dissipation partition plates are arranged between the adjacent battery power supplies and are perpendicular to the bottom plate, and heat dissipation holes penetrating through the two ends of the ventilation partition plates are formed in the heat dissipation partition plates in the vertical direction; first through holes corresponding to the heat dissipation holes are formed in the bottom plate. According to the battery pack, the overall heat dissipation performance can be improved, and heat generated by the battery units can be dissipated more quickly.

Description

Technical Field

[0001] This application relates to the field of battery heat dissipation technology, and in particular to an energy storage battery box. Background Technology

[0002] Current energy storage battery systems generally adopt a modular integrated design. Their basic structure consists of several battery packs connected in series and parallel to form a battery housing assembly, thereby improving energy density at the system level. Specifically, the structure of a single battery pack is characterized by multiple battery cells arranged linearly laterally under the constraint of a fixed support, forming a power output unit with a regular geometric shape.

[0003] However, during actual operation of energy storage battery boxes, battery cells generate a significant amount of heat due to charging and discharging operations. Because existing assembly and fixing methods have shortcomings in heat dissipation design, the heat generated by the battery cells cannot be dissipated effectively and promptly. Prolonged exposure to high temperatures gradually degrades the performance of the battery cells, thus affecting the overall lifespan of the energy storage battery box and increasing its operating costs and safety risks. Utility Model Content

[0004] To improve the heat dissipation of the battery, this application provides an energy storage battery box.

[0005] This application provides an energy storage battery box, which adopts the following technical solution:

[0006] An energy storage battery box includes a box shell and several battery packs installed inside the box shell. Each battery pack includes a fixed frame and multiple battery cells arranged within the fixed frame. The fixed frame includes: a retainer for accommodating multiple battery cells, comprising a base plate and long side plates fixed to both sides of the base plate; an anti-detachment component installed at the upper end of the retainer to prevent multiple battery cells from detaching from the retainer; and a heat dissipation partition disposed between adjacent battery cells and perpendicular to the base plate, the partition having heat dissipation holes penetrating both ends vertically. A first through hole corresponding to the heat dissipation hole is provided on the base plate. The box shell includes a base plate, a top plate, and four side plates. A main air inlet corresponding to the first through hole is provided on the base plate, and an air outlet is provided on a side plate parallel to the heat dissipation partition. An exhaust fan is installed on the box shell at the air outlet.

[0007] By adopting the above technical solution, a complete heat dissipation air duct is formed. Air enters from the main air inlet, passes through the first through hole and the heat dissipation hole in sequence, and is finally drawn out from the air outlet by the exhaust fan. This can effectively remove the heat generated by the battery unit, improve heat dissipation efficiency, prevent the battery unit from degrading due to long-term exposure to high temperature environment, extend the service life of the energy storage battery box, and reduce the cost of use and safety risks.

[0008] Optionally, a frame is installed on the base of the box. The frame includes two parallel horizontal frame bars and several vertical frame bars. The several vertical frame bars are vertically connected between the two horizontal frame bars, and the vertical frame bars are located between two adjacent battery packs so as to form a heat dissipation channel between adjacent battery packs.

[0009] By adopting the above technical solution, the space for air circulation is further increased, which facilitates the flow of air between battery packs, removes more heat, and further improves the heat dissipation effect.

[0010] Optionally, the housing is also provided with a reinforcing plate, which is fixedly connected to the end of several battery packs away from the air outlet by bolts.

[0011] By adopting the above technical solutions, the stability of the battery pack within the casing is enhanced, preventing the battery pack from shaking or shifting during transportation and use, and ensuring the reliability of the internal structure of the energy storage battery box.

[0012] Optionally, the reinforcing plate has vertical holes corresponding to the heat dissipation channel, and a first secondary air inlet is provided on a side plate of the box away from the air outlet, the first secondary air inlet corresponding to the vertical holes.

[0013] By adopting the above technical solution, air can enter from the first secondary air inlet and enter the heat dissipation channel through the vertical holes, which increases the air intake volume, reduces the residence time of hot air farthest from the air outlet, further optimizes the heat dissipation effect, and ensures that the battery unit can operate at a suitable temperature.

[0014] Optionally, a number of ventilation holes are provided between adjacent vertical holes, a gap is left between the reinforcing plate and the box side plate, and a second auxiliary air inlet corresponding to the ventilation holes is provided on a box side plate away from the air outlet.

[0015] By adopting the above technical solution, the air intake path is further widened, allowing air to enter from multiple directions and be more evenly distributed around the battery pack, thereby improving the uniformity and efficiency of heat dissipation.

[0016] Optionally, a third air inlet is provided on the two side panels of the box that are perpendicular to the heat dissipation partition.

[0017] By adopting the above technical solution, the number of air inlets entering the casing is increased, the airflow path is further enriched, the heat residence time is reduced, and the overall heat dissipation performance is improved, so that the heat generated by the battery unit can be dissipated more quickly.

[0018] Optionally, two air outlets are symmetrically provided on the side panel of the box.

[0019] By adopting the above technical solution, compared with a single air outlet, an additional air exhaust channel is added, improving the air exhaust efficiency, which helps to form a smoother air circulation and further enhances the heat dissipation effect.

[0020] In summary, this application includes at least one of the following beneficial effects:

[0021] 1. By designing a complete heat dissipation duct that includes heat dissipation baffles, heat dissipation holes, main air inlet, air outlet and exhaust fan, as well as forming heat dissipation channels between adjacent battery packs, setting multiple air inlets (including the first secondary air inlet, the second secondary air inlet and the third secondary air inlet) and symmetrical air outlets, the space and path for air circulation are increased, and the air flow efficiency is improved. This effectively removes the heat generated by the battery cells, extends the service life of the energy storage battery box, and reduces the cost of use and safety risks.

[0022] 2. By installing a reinforcing plate inside the casing and fixing it to the battery pack with bolts, the stability of the battery pack inside the casing is enhanced. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0024] Figure 2 This is an explosion diagram from an embodiment of this application;

[0025] Figure 3 This is a schematic diagram illustrating the structure of the air inlet in the embodiments of this application;

[0026] Figure 4 This is a schematic diagram illustrating the structure of the battery pack in the embodiments of this application;

[0027] Figure 5 This is an exploded schematic diagram of the battery pack in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram illustrating the structure of the heat dissipation partition in the embodiments of this application;

[0029] Figure 7 This is a schematic diagram of the frame structure in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Case shell; 2. Battery pack; 3. Case base; 4. Case top plate; 5. Case side plate; 6. Fixing frame; 7. Retainer; 8. Battery unit; 9. Bottom plate; 10. Long side plate; 11. Anti-detachment component; 12. Anti-detachment rod; 13. Connecting plate; 14. Connecting piece; 15. Heat dissipation partition; 16. Heat dissipation hole; 17. First through hole; 18. Main air inlet; 19. Air outlet; 20. Exhaust fan; 21. Frame; 22. Horizontal frame strip; 23. Vertical frame strip; 24. Heat dissipation channel; 25. Reinforcing plate; 26. Vertical hole; 27. Ventilation hole; 28. First secondary air inlet; 29. ​​Second secondary air inlet; 30. Third secondary air inlet; 32. Protective plate; 33. Upper protective plate; 34. Lower protective plate; 35. Second through hole; 36. Support base; 37. Mounting slot. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses an energy storage battery box. (Refer to...) Figure 1 , 2 The energy storage battery box includes a casing 1 and several battery packs 2 installed inside the casing 1. The casing 1 serves as the outer shell of the entire energy storage battery box, protecting the internal battery packs 2 and providing a mounting base. The casing 1 includes a base 3, a top plate 4, and four side plates 5. The battery packs 2 are installed on the base 3 and are covered by the top plate 4 and the four rectangularly distributed side plates 5.

[0033] Reference Figure 4 , 5 The battery pack 2 includes a fixed frame 6 and multiple battery cells 8 arranged and installed in the fixed frame 6. The frame includes a retainer 7, an anti-detachment component 11, and a heat dissipation partition 15. The retainer 7 is the basic component of the fixed frame 6, used to accommodate multiple battery cells 8. The retainer 7 includes a base plate 9 and long side plates 10 fixed to both sides of the base plate 9. The base plate 9 and the long side plates 10 are integrally formed, forming an open box-shaped structure. The base plate 9 provides a stable support platform for the battery cells 8, while the four long side plates 10 provide lateral restraint and protection for the battery cells 8.

[0034] The size and shape of the retainer 7 are designed according to the specifications and quantity of the battery cells 8 to ensure that the battery cells 8 can be arranged neatly and orderly. In the actual manufacturing process, the retainer 7 can be made of high-strength, corrosion-resistant metal materials, such as aluminum alloy, and processed by stamping, welding and other processes to ensure the strength and stability of its structure.

[0035] Reference Figure 4 , 5The anti-detachment component 11 is installed at the upper end of the retainer 7. Its main function is to prevent multiple battery cells 8 from detaching from the retainer 7 at the upper end, thus ensuring the stability of the battery pack 2 structure.

[0036] Specifically, refer to Figure 5 The anti-detachment component 11 specifically includes an anti-detachment rod 12 and connecting plates 13. Two connecting plates 13 are provided, and these two connecting plates 13 are fixedly connected to both ends of the long side plate 10 by bolts. Connecting pieces 14 extend vertically from both ends of the anti-detachment rod 12, and the two connecting pieces 14 are then fixedly connected to the two connecting plates 13 by bolts. When it is necessary to disassemble the battery unit 8 for maintenance or replacement, the anti-detachment component 11 can be easily removed simply by loosening the bolts, making the operation convenient.

[0037] Reference Figure 5 , 6 A heat dissipation partition 15 is disposed between adjacent battery cells 8 and is perpendicular to the base plate 9. The heat dissipation partition 15 has heat dissipation holes 16 extending through both ends vertically. These holes 16 can be circular, square, or other suitable shapes, and their size and number are optimized according to the heat dissipation requirements of the battery pack 2. Simultaneously, the base plate 9 has a first through hole 17 corresponding to the heat dissipation holes 16. When the battery cells 8 generate heat during operation, the heat is dissipated through the channel formed by the heat dissipation holes 16 on the heat dissipation partition 15 and the first through hole 17 on the base plate 9, accelerating heat dissipation. The heat dissipation partition 15 can be made of a material with good thermal conductivity, such as copper alloy or aluminum alloy, to improve heat conduction efficiency.

[0038] Reference Figure 5 The fixing frame 6 also includes a protective plate 32 disposed within the retainer 7, enclosing multiple battery units 8; an upper protective plate 33 for mounting the upper part of the battery units 8; and a lower protective plate 34 mounted on the base plate 9. The protective plate 32 protects the battery units 8 from direct impact by external objects, preventing physical damage. The upper protective plate 33 protects the upper part of the battery units 8, and the lower protective plate 34 protects the lower part, improving the overall protection performance of the battery pack 2. The lower protective plate 34 has second through holes 35 corresponding to the first through holes 17, ensuring communication between the heat dissipation holes 16 and external air. The anti-detachment rod 12, by pressing the upper protective plate 33, limits the battery units 8 within the retainer 7. The protective plate 32, upper protective plate 33, and lower protective plate 34 can be made of plastic or metal materials with certain strength and toughness.

[0039] Reference Figure 5 , 6The fixed frame 6 also includes multiple support bases 36, each with a mounting slot 37 for inserting a battery unit 8. The support bases 36 are placed on the lower guard plate 34, with one end of the battery unit 8 positioned in the mounting slot 37. The support bases 36 provide stable support for the battery unit 8, ensuring accurate installation and preventing it from shaking during operation. The size and shape of the mounting slots 37 in the support bases 36 are designed according to the specifications of the battery unit 8 to ensure that the battery unit 8 can be securely installed on the support bases 36. In practical applications, the number and position of the support bases 36 are rationally arranged according to the arrangement of the battery units 8 to ensure that each battery unit 8 receives stable support.

[0040] Reference Figure 6 One end of the heat dissipation partition 15 is supported on two adjacent support seats 36, forming a ventilation space between it and the base plate 9, which further increases the airflow channel at the bottom of the battery unit 8 and improves the heat dissipation efficiency.

[0041] In addition, an appropriate gap is left between the heat dissipation baffle 15 and the anti-detachment rod 12 to ensure that air can flow smoothly inside the battery pack 2, which is conducive to heat dissipation.

[0042] Reference Figure 1 , 2 The base 3 of the enclosure has a main air inlet 18 corresponding to the first through hole 17, and an air outlet 19 is provided on one of the side plates 5 parallel to the heat dissipation partition 15. An exhaust fan 20 is installed on the enclosure 1 at the air outlet 19. Air enters from the main air inlet 18 at the bottom, passes through the first through hole 17 and the heat dissipation hole 16 in sequence, and is finally drawn out from the air outlet 19 by the exhaust fan 20, forming a complete heat dissipation air duct. This effectively removes the heat generated by the battery unit 8, improves heat dissipation efficiency, avoids performance degradation of the battery unit 8, extends the service life of the energy storage battery box, and reduces operating costs and safety risks.

[0043] Preferably, two air outlets 19 are symmetrically provided on the side panel 5 of the housing. Compared with a single air outlet 19, this increases the air exhaust channel, improves air exhaust efficiency, helps to form a smoother air circulation, and further enhances the heat dissipation effect. The exhaust fan 20 is a key component for forming air circulation. It creates a negative pressure inside the housing 1 through suction, thereby prompting external air to enter the housing 1 from the various air inlets and carry away the heat generated by the battery unit 8. In this embodiment, the exhaust fan 20 is preferably a centrifugal fan.

[0044] Reference Figure 4 , 7A frame 21 is installed on the base 3 of the enclosure. The frame 21 consists of two parallel horizontal frame strips 22 and several vertical frame strips 23. The vertical frame strips 23 are vertically connected between the two horizontal frame strips 22 and are located between two adjacent battery packs 2. The frame 21 separates adjacent battery packs 2, forming a heat dissipation channel 24 between them, providing additional space for air circulation and helping to improve heat dissipation efficiency.

[0045] Reference Figure 2 A reinforcing plate 25 is also provided inside the housing 1. The reinforcing plate 25 is fixedly connected to the end of several battery packs 2 away from the air outlet 19 by bolts. The reinforcing plate 25 connects several battery packs 2 to form a whole, which enhances the stability of the battery packs 2 inside the housing 1, prevents the battery packs 2 from shaking or shifting during transportation and use, and ensures the reliability of the internal structure of the energy storage battery box.

[0046] Reference Figure 2 The reinforcing plate 25 has vertical holes 26 corresponding to the heat dissipation channel 24, and several vent holes 27 are formed between adjacent vertical holes 26. On the side panel 5 away from the air outlet 19, a first secondary air inlet 28 and a second secondary air inlet 29 are also provided. The first secondary air inlet 28 corresponds to the vertical holes 26 on the reinforcing plate 25. The second secondary air inlet 29 corresponds to the vent holes 27 between adjacent vertical holes 26 on the reinforcing plate 25. A gap is left between the reinforcing plate 25 and the side panel 5, allowing air to enter through the first secondary air inlet 28 and the second secondary air inlet 29, and then through the vertical holes 26 into the heat dissipation channel 24, carrying away the heat remaining at the farthest end of the air outlet 19 and reducing the heat's residence time there.

[0047] Reference Figure 2 Two side panels 5 perpendicular to the heat dissipation baffle 15 are provided with a third air inlet 30 to reduce the time that heat stays on the side panel 5.

[0048] The implementation principle of an energy storage battery box according to an embodiment of this application is as follows:

[0049] When the energy storage battery box is operating, the battery unit 8 generates a large amount of heat. At this time, the exhaust fan 20 starts, creating a negative pressure inside the casing 1. External air enters the casing 1 through the main air inlet 18, the first secondary air inlet 28, the second secondary air inlet 29, and the third secondary air inlet 30. Most of the incoming air flows through the main air inlet 18, the first through hole 17, and the heat dissipation hole 16, carrying away the main heat generated by the battery unit 8; a small portion enters the heat dissipation channel 24 through the first secondary air inlet 28 and the vertical hole 26, and enters the casing 1 through the second secondary air inlet 29 and the vent 27, increasing airflow and reducing the time heat stays away from the air outlet 19. Finally, the hot air is drawn out by the exhaust fan 20 from the two symmetrically opened air outlets 19, forming a complete air circulation, achieving efficient heat dissipation and ensuring that the battery unit 8 operates at a suitable temperature.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy storage battery box, comprising a box shell (1) and a plurality of battery packs (2) installed within the box shell (1), wherein the battery packs (2) include a fixed frame (6) and a plurality of battery cells (8) arranged and installed in the fixed frame (6), characterized in that: The fixed frame (6) includes: The retainer (7) is used to accommodate multiple battery cells (8), including a base plate (9) and long side plates (10) fixed to both sides of the base plate (9). An anti-detachment component (11) is installed at the upper end of the retainer (7) to prevent multiple battery cells (8) from detaching from the retainer (7). A heat dissipation partition (15) is disposed between adjacent battery cells (8) and is perpendicular to the base plate (9). The heat dissipation partition (15) has heat dissipation holes (16) that penetrate both ends of the heat dissipation partition (15) in the vertical direction. The bottom plate (9) has a first through hole (17) corresponding to the heat dissipation hole (16); the box shell (1) includes a box base (3), a box top plate (4) and four box side plates (5); the box base (3) has a main air inlet (18) corresponding to the first through hole (17), and a box side plate (5) parallel to the heat dissipation partition (15) has an air outlet (19); and an exhaust fan (20) is installed on the box shell (1) at the air outlet (19).

2. The energy storage battery box according to claim 1, characterized in that: A frame (21) is installed on the base (3) of the box. The frame (21) includes two parallel horizontal frame strips (22) and several vertical frame strips (23). Several vertical frame strips (23) are vertically connected between the two horizontal frame strips (22), and the vertical frame strips (23) are located between two adjacent battery packs (2) so that a heat dissipation channel (24) is formed between the adjacent battery packs (2).

3. The energy storage battery box according to claim 2, characterized in that: The casing (1) is also provided with a reinforcing plate (25), which is fixedly connected to one end of several battery packs (2) away from the air outlet (19) by bolts.

4. The energy storage battery box according to claim 3, characterized in that: The reinforcing plate (25) has a vertical hole (26) corresponding to the heat dissipation channel (24), and a first secondary air inlet (28) is provided on a side plate (5) away from the air outlet (19), which corresponds to the vertical hole (26).

5. The energy storage battery box according to claim 4, characterized in that: A number of ventilation holes (27) are provided between adjacent vertical holes (26), and a gap is left between the reinforcing plate (25) and the box side plate (5). A second auxiliary air inlet (29) corresponding to the ventilation hole (27) is provided on a box side plate (5) that is far away from the air outlet (19).

6. The energy storage battery box according to claim 1, characterized in that: Two side panels (5) perpendicular to the heat dissipation partition (15) are provided with a third air inlet (30).

7. The energy storage battery box according to claim 1, characterized in that: Two air outlets (19) are symmetrically opened on the side panel (5) of the box.

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