A 625Ah battery cell module housing

Abstract

This utility model discloses a 625Ah battery cell module housing, relating to the technical field of battery cell module housings, including a housing structure and a heat dissipation mechanism; the heat dissipation mechanism includes a liquid cooling plate structure and a reinforcement structure disposed on the upper end of the liquid cooling plate structure and reinforcing the liquid cooling plate structure; the liquid cooling plate structure is provided with a liquid cooling cavity; the liquid cooling cavity is provided with three sets of water inlets and one set of water outlets respectively connected to the three sets of water inlets; the crossbeam reinforcement, longitudinal beam reinforcement, reinforcement points, reinforced longitudinal beam support structure and support structure work together to effectively reduce the deformation caused by the bottom under stress, distribute the self-weight of the product battery cell, absorb part of the deformation force, and reduce the possibility of deformation of the bottom frame structure. By using the liquid cooling plate structure, water inlets and water outlets in combination, the heat dissipation effect on the battery cell structure can be improved, the heat exchange efficiency can be greatly improved, the risk of thermal runaway can be reduced, and the safety and fast charging performance can be improved at the same time.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery cell module box, specifically a 625ah battery cell module box. Background Technology

[0002] With the continuous rise in global energy demand, the application of energy storage technology is receiving increasing attention. Containerized energy storage equipment, as a new technology, boasts advantages such as high flexibility, convenient installation, and strong mobility. It is widely used in various fields, leading to rapid development in the energy storage industry. It is projected that by 2028, the global newly installed energy storage capacity will reach the TWh level. Entering the TWh era, the large-scale application of energy storage technology can support the storage and release of even larger amounts of electricity. In the critical stages of energy transformation and power transition, the development of energy storage technology is crucial. The use of large-capacity battery cells is an inevitable trend, offering safety, stability, and effective reduction in energy storage operation and maintenance costs. The battery cell is the core energy storage unit of a battery, storing and releasing electrical energy through electrochemical reactions. The battery cell module housing is the core structural component of the battery pack, used to integrate and protect individual battery cells or modules, while also providing mechanical support, thermal management, electrical insulation, and safety protection functions.

[0003] Existing cell module enclosures have certain drawbacks. When in use, they typically employ the mainstream solution of liquid cooling for energy storage / power, placing the liquid cooling plate at the bottom of the cell. Since the cell is upright and has a relatively high overall height, the heat dissipation to the top will generate a large temperature difference, which can easily cause temperature fluctuations between the cells, increasing the risk of thermal runaway and reducing the lifespan of the cell module enclosure, thus failing to meet people's needs. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a 625ah battery cell module housing.

[0005] A 625Ah battery cell module housing includes: a housing structure and a heat dissipation mechanism disposed on the housing structure; the heat dissipation mechanism includes a liquid cooling plate structure disposed inside the housing structure and a reinforcement structure disposed on the upper end of the liquid cooling plate structure and reinforcing the liquid cooling plate structure; the liquid cooling plate structure is provided with a liquid cooling cavity; the liquid cooling cavity is provided with three sets of water inlets and one set of water outlets respectively connected to the three sets of water inlets, the three sets of water inlets and one set of water outlets are used in conjunction to allow water to enter and cool the three large surfaces simultaneously, and then the water flows continuously into one outlet. The outlet temperature is reduced to ensure the temperature difference between the inlet and outlet. The product has pre-drilled mounting holes for integration with other components to enhance overall rigidity. The liquid cooling cavity contains several sets of cylindrical structures to turbulent the flow, reducing flow resistance and increasing localized heat dissipation. The liquid cooling plate structure uses a three-inlet, one-outlet design, reducing the overall temperature difference by 2-3 degrees Celsius. The housing structure is made of roll-formed material, resulting in a finished product with high output. The liquid cooling plate structure is formed by stamping, and its inner surface is treated with powder coating for insulation.

[0006] As a further embodiment of this utility model: the reinforcement structure includes a crossbeam reinforcement component that is detachably connected to the liquid cooling plate structure and a longitudinal beam reinforcement component that is matched with the crossbeam reinforcement component; the liquid cooling plate structure is provided with a number of reinforcement points that are respectively connected to the crossbeam reinforcement component and the longitudinal beam reinforcement component, and the crossbeam reinforcement component and the longitudinal beam reinforcement component can effectively prevent the middle area from being stressed, thereby increasing the overall stress limit.

[0007] As a further embodiment of this utility model: a reinforcing longitudinal beam support structure is provided at the bottom middle position of the liquid cooling plate structure; the reinforcing longitudinal beam support structure is aligned with the longitudinal beam reinforcement component, and the liquid cooling plate structure is divided into blocks to ensure the flatness of the liquid cooling plate structure and to improve the heat conduction between the liquid cooling plate structure and the battery cell structure.

[0008] As a further embodiment of this utility model: the internal structure of the box is provided with several sets of battery cell structures, the water outlet is located in the battery cell electrode area of ​​the battery cell structure, the battery cell structure is installed on its side, the battery cell structure is in a 90-degree vertical side-lying state, the heat is transferred to the top quickly and the heat dissipation is also good, the heat dissipation area of ​​the liquid cooling plate structure corresponds to the positive and negative electrodes of the battery cell, and the heat dissipation is specifically carried out.

[0009] As a further embodiment of this utility model: the lower end of the liquid cooling plate structure is provided with several sets of support structures for bottom packaging; the height dimension of the support structure is greater than the height dimension of the reinforcing longitudinal beam support structure.

[0010] As a further embodiment of this utility model: the box structure is provided with a bottom frame structure, and the bottom frame structure is provided with several sets of intermediate bottom reinforcing plates; intermediate reinforcing longitudinal beams are installed on the bottom frame structure; the bottom frame structure is aligned and connected with the liquid cooling plate structure; the bottom frame structure is made of resistance welding, which is simple in structure, high in strength, and has little deformation; the longitudinal beam reinforcement can distribute the force on the bottom frame structure and reduce the weight of the bottom frame structure.

[0011] As a further embodiment of this utility model: the bottom frame structure includes a left frame and a right frame aligned with the left frame; the two ends of several sets of intermediate bottom reinforcing plates are detachably fixed to the left frame and the right frame, respectively.

[0012] As a further embodiment of this utility model: the two ends of the left frame and the right frame are respectively detachably equipped with a front bottom reinforcing plate and a rear bottom reinforcing plate disposed on one side of the front bottom reinforcing plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) The present invention, through the set box structure and heat dissipation mechanism, the crossbeam reinforcement, longitudinal beam reinforcement, reinforcement point, reinforced longitudinal beam support structure and support structure can effectively reduce the deformation caused by the bottom after being subjected to force, distribute the self-weight of the product cell, absorb part of the deformation force, and reduce the possibility of deformation of the bottom frame structure. Through the set liquid cooling plate structure, water inlet and water outlet, the heat dissipation effect of the cell structure can be improved, the heat exchange efficiency is greatly improved, the risk of thermal runaway is reduced, and the safety and fast charging performance are improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0015] Figure 2 This is a partial structural diagram of the battery cell structure in this utility model.

[0016] Figure 3 This is a partial structural diagram of the bottom frame structure in this utility model.

[0017] Figure 4 This is a partial structural diagram of the liquid cooling plate structure in this utility model.

[0018] Figure 5 This is a partial structural diagram of the liquid cooling plate structure and the reinforcement structure in this utility model.

[0019] Figure 6 This is a partial structural diagram of the liquid cooling plate structure and the reinforced longitudinal beam support structure in this utility model.

[0020] In the diagram: 1. Box structure; 2. Liquid cooling plate structure; 3. Reinforcement structure; 4. Liquid cooling cavity; 5. Water inlet; 6. Water outlet; 7. Crossbeam reinforcement; 8. Longitudinal beam reinforcement; 9. Reinforcement point; 10. Reinforced longitudinal beam support structure; 11. Battery cell structure; 12. Support structure; 13. Bottom frame structure; 14. Middle bottom reinforcement plate; 15. Left frame; 16. Right frame; 17. Front bottom reinforcement plate; 18. Rear bottom reinforcement plate; 19. Middle reinforcement longitudinal beam. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1 Please see Figure 1 - Figure 6 This application provides a 625Ah battery cell module housing, including: a housing structure 1 and a heat dissipation mechanism disposed on the housing structure 1; the heat dissipation mechanism includes a liquid cooling plate structure 2 disposed inside the housing structure 1 and a reinforcement structure 3 disposed on the upper end of the liquid cooling plate structure 2 and reinforcing the liquid cooling plate structure 2; a liquid cooling cavity 4 is disposed on the liquid cooling plate structure 2, the liquid cooling cavity 4 uses a 50% ethylene glycol aqueous solution as coolant, the inlet temperature is 18℃, and the inlet flow rate is 12.5L / min; the improved liquid cooling plate structure 2 can reduce the PACK temperature difference of the 625 battery cell product to 2.3℃ and the voltage drop to 21Kpa, realizing the span from small battery cell to large battery cell, and on this basis, reducing the temperature difference and improving performance; the liquid cooling cavity 4 is provided with three sets The system includes an inlet 5 and an outlet 6 connected to three inlets 5. The three inlets 5 and the outlet 6 work together to allow water to enter and cool the three large surfaces simultaneously. The water then flows continuously to an outlet, reducing the outlet temperature and ensuring the temperature difference between the inlet and outlet. The system also features pre-drilled mounting holes to enhance the overall rigidity when used with other components. The liquid cooling chamber 4 contains several cylindrical structures that create turbulence, reducing flow resistance and increasing local heat dissipation. The liquid cooling plate structure 2 uses a three-inlet, one-outlet design, which can reduce the overall temperature difference by 2-3 degrees Celsius. The housing structure 1 is made of roll-formed material, resulting in a finished product with high output. The liquid cooling plate structure 2 is formed by stamping, and the inner surface is treated with powder coating for insulation.

[0023] The reinforcement structure 3 includes a crossbeam reinforcement 7 that is detachably connected to the liquid cooling plate structure 2 and a longitudinal beam reinforcement 8 that is matched with the crossbeam reinforcement 7; the liquid cooling plate structure 2 is provided with several sets of reinforcement points 9 that are respectively connected to the crossbeam reinforcement 7 and the longitudinal beam reinforcement 8. The crossbeam reinforcement 7 and the longitudinal beam reinforcement 8 can effectively prevent the middle area from being stressed and increase the overall stress limit.

[0024] A reinforcing longitudinal beam support structure 10 is provided at the bottom center of the liquid cooling plate structure 2; the reinforcing longitudinal beam support structure 10 is aligned with the longitudinal beam reinforcement component 8, and the liquid cooling plate structure 2 is divided into blocks to ensure the flatness of the liquid cooling plate structure 2 and to improve the heat conduction between the liquid cooling plate structure 2 and the battery cell structure 11.

[0025] The interior of the housing structure 1 contains several sets of battery cell structures 11. The water outlet 6 is located in the battery cell terminal area of ​​the battery cell structure 11. The battery cell structure 11 is installed on its side, with the battery cell structure 11 lying vertically at 90 degrees. Heat is transferred to the top quickly, and heat dissipation is also good. The heat dissipation area of ​​the liquid cooling plate structure 2 corresponds to the positive and negative terminals of the battery cell, and heat dissipation is carried out in a targeted manner.

[0026] The lower end of the liquid cooling plate structure 2 is provided with several sets of support structures 12 for bottom packaging; the height dimension of the support structure 12 is greater than the height dimension of the reinforcing longitudinal beam support structure 10.

[0027] The box structure 1 is provided with a bottom frame structure 13, and several sets of intermediate bottom reinforcing plates 14 are provided on the bottom frame structure 13; intermediate reinforcing longitudinal beams 19 are installed on the bottom frame structure 13; the bottom frame structure 13 is aligned and connected with the liquid cooling plate structure 2; the bottom frame structure 13 is made of resistance welding, which is simple in structure, high in strength, and has little deformation. The longitudinal beam reinforcement 8 can distribute the force on the bottom frame structure 13 and reduce the stress on the bottom frame structure 13.

[0028] The bottom frame structure 13 includes a left frame 15 and a right frame 16 aligned with the left frame 15; the two ends of several sets of intermediate bottom reinforcing plates 14 are detachably fixed to the left frame 15 and the right frame 16 respectively.

[0029] The left frame 15 and the right frame 16 are respectively equipped with a front bottom reinforcing plate 17 and a rear bottom reinforcing plate 18 located on one side of the front bottom reinforcing plate 17.

[0030] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A 625Ah battery cell module housing, characterized in that, include: The enclosure structure (1) and the heat dissipation mechanism provided on the enclosure structure (1); The heat dissipation mechanism includes a liquid cooling plate structure (2) disposed inside the box structure (1) and a reinforcement structure (3) disposed on the upper end of the liquid cooling plate structure (2) and reinforces the liquid cooling plate structure (2). The liquid cooling plate structure (2) is provided with a liquid cooling cavity (4). The liquid cooling chamber (4) is provided with three sets of water inlets (5) and one set of water outlets (6) respectively connected to the three sets of water inlets (5).

2. The 625 Ah cell module box of claim 1, wherein, The reinforcement structure (3) includes a crossbeam reinforcement member (7) that is detachably connected to the liquid cooling plate structure (2) and a longitudinal beam reinforcement member (8) that is matched with the crossbeam reinforcement member (7). The liquid cooling plate structure (2) is provided with several sets of reinforcement points (9) that are respectively connected to the crossbeam reinforcement member (7) and the longitudinal beam reinforcement member (8).

3. The 625 Ah cell module box of claim 2, wherein, A reinforcing longitudinal beam support structure (10) is provided at the bottom middle position of the liquid cooling plate structure (2). The reinforced longitudinal beam support structure (10) is aligned with the longitudinal beam reinforcement component (8).

4. The 625 Ah cell module box of claim 3, wherein, The box structure (1) is provided with several sets of battery cell structures (11), and the water outlet (6) is located in the battery cell pole area of ​​the battery cell structure (11).

5. The 625 Ah cell module box of claim 3, wherein, The lower end of the liquid cooling plate structure (2) is provided with several sets of support structures (12) for bottom packaging. The height dimension of the support structure (12) is greater than the height dimension of the reinforcing longitudinal beam support structure (10).

6. The 625 Ah cell module box of claim 5, wherein, The box structure (1) is provided with a bottom frame structure (13), and the bottom frame structure (13) is provided with several sets of intermediate bottom reinforcing plates (14). The bottom frame structure (13) is equipped with a middle reinforcing longitudinal beam (19). The bottom frame structure (13) is aligned and connected with the liquid cooling plate structure (2).

7. The 625 Ah cell module box of claim 6, wherein, The bottom frame structure (13) includes a left border (15) and a right border (16) aligned with the left border (15). The two ends of several sets of middle bottom reinforcing plates (14) are detachably fixed to the left frame (15) and the right frame (16), respectively.

8. The 625 Ah cell module box of claim 7, wherein, The left frame (15) and the right frame (16) are respectively detachably equipped with a front bottom reinforcing plate (17) and a rear bottom reinforcing plate (18) located on one side of the front bottom reinforcing plate (17).

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