Battery cell module energy storage electric box

Abstract

The utility model discloses a battery cell module energy storage electric box which comprises a box body structure formed by detachably installing an upper cover assembly and a water cooling plate assembly, and a battery cell module assembly, a high-voltage connector assembly and a fuse assembly are installed in the box body structure. The battery cell module assembly is formed by connecting a plurality of groups of battery cell modules in series; the high-voltage connector assembly and the fuse assembly are both located on the same side of the battery cell module assembly, and a high-voltage connector mounting hole and a fuse mounting hole are formed in the positions, corresponding to the high-voltage connector assembly and the fuse assembly, of the side face of the upper cover assembly; and a battery pack control module is detachably mounted at the fuse mounting hole. According to the utility model, through the modular design, the battery cell module formed by connecting a plurality of groups of battery cell modules in series, the energy storage of the energy storage electric box and the adaptability thereof are ensured, the structure is simplified, the complexity of parts and the manufacturing cost are reduced, the maintenance and the installation are convenient, and the maintenance convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage system technical field especially relates to a kind of battery module energy storage electric box. BACKGROUND

[0002] With the rapid development of new energy industry, new energy vehicles, lithium battery energy storage are widely used. In the application of energy storage scene, the traditional energy storage battery pack is integrated designed using the battery pack used in vehicle.

[0003] But because energy storage working condition is lower than vehicle-mounted working condition requirement, using vehicle-mounted battery pack to act as energy storage battery pack, not only part structure is complex, development cycle is longer and manufacturing cost is higher;With longer part development verification period, battery pack design redundancy is larger, not suitable for energy storage scene. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems that provide a kind of battery module energy storage electric box, simple structure, part development verification period can be greatly shortened, while saving manufacturing cost.

[0005] In order to solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] A kind of battery module energy storage electric box, including the box structure of being detachably installed by upper cover assembly and water-cooled plate assembly, electric module assembly, high-voltage connector assembly and fuse assembly are installed in the box structure;

[0007] The electric module assembly is connected by multiple groups of battery sub-module;

[0008] The high-voltage connector assembly and the fuse assembly are located at the same side of the electric module assembly, the high-voltage connector installation hole and the fuse installation hole are set in the position corresponding to the high-voltage connector assembly and the fuse assembly of the side surface of the upper cover assembly;

[0009] Battery pack control module is detachably installed at the fuse installation hole.

[0010] Further, the upper cover assembly includes upper cover body, sheet metal pressing strip and upper cover lock bolt;

[0011] The upper cover body is the cuboid cover body structure formed by PP suction molding, one side of the cuboid cover body is open, upper cover edge is horizontally extended outward around the periphery of the upper cover body, and the sheet metal pressing strip is arranged on the upper cover edge;

[0012] The corresponding positions of the sheet metal pressing strip and the upper cover edge are both spaced apart and provided with openings, and the upper cover lock bolt is bolted and fixed with the water-cooled plate assembly through the openings.

[0013] Furthermore, multiple sets of the battery cell modules are arranged in rows and installed inside the housing structure, and mica sheets are provided between adjacent sets of the battery cell modules.

[0014] Furthermore, adjacent sets of the battery cell modules are connected in series via adapter plates.

[0015] Furthermore, each of the aforementioned cell sub-modules includes a cell body, an electrical connection plate, and a PC plate, wherein the cell body includes at least two strings of cells;

[0016] A layer of PC sheet is provided on both the upper and lower sides of the battery cell body. Electrode holes are opened on the PC sheet at the locations corresponding to the battery cell electrodes. The electrical connection bar contacts the battery cell electrodes through the electrode holes.

[0017] The individual cells of the battery cell body are connected in series to form a group through the electrical connection plate.

[0018] Furthermore, the battery cell sub-module also includes a module end plate and a module steel strip;

[0019] The module end plate is mounted on both sides of the battery cell sub-module perpendicular to the mica sheet;

[0020] The module steel strip consists of two strips, which are wound around the module end plates on both sides of the battery cell module near the top and bottom ends, respectively.

[0021] Furthermore, the battery cell module also includes a heat insulation pad, an insulating sheet, and a buffer pad;

[0022] The heat insulation pad is located between the module end plate and the battery cell sub-module;

[0023] The insulating sheet is located between the heat insulation pad and the battery cell module;

[0024] The buffer pad is located between each adjacent cell of the cell sub-module.

[0025] Furthermore, the high-voltage connector assembly includes a high-voltage connector panel and a high-voltage connector plug interface, a maintenance switch, a fire nozzle, and a low-voltage wiring harness interface located on the high-voltage connector panel;

[0026] The high-voltage connector panel is mounted on the module end plate;

[0027] The high-voltage connector has at least two plug interfaces.

[0028] Furthermore, the fuse assembly includes a fuse body, a fuse base, and a fuse cover, and the battery pack control module includes a control module housing and a circuit control board;

[0029] The fuse base is installed at the module end plate, the fuse body is installed on the fuse base, and the fuse cover is attached to the fuse body by a snap fastener.

[0030] The circuit control board is detachably mounted at the fuse mounting hole by screws, and the control module housing is mounted outside the circuit control board.

[0031] Furthermore, a sealing ring is added to the mounting points of the upper cover assembly and the water-cooled plate assembly.

[0032] The beneficial effects of this utility model are as follows: through the modular design of the top cover assembly, water-cooled plate assembly, cell module assembly, high-voltage connector assembly and fuse assembly, the cell module is formed by multiple sets of cell sub-modules connected in series. While ensuring the energy storage capacity and adaptability of the energy storage box, the structure is simplified, the complexity of parts and manufacturing costs are reduced. The high-voltage connector and fuse assembly are centrally arranged, which is convenient for maintenance and installation. At the same time, the detachable design of the CSC battery pack control module improves the convenience of maintenance. Attached Figure Description

[0033] Figure 1 This is an exploded view of the structure of a battery cell module energy storage box according to an embodiment of the present utility model;

[0034] Figure 2 This is a schematic diagram of the overall structure of a battery cell module energy storage box according to an embodiment of the present utility model;

[0035] Figure 3 This is a schematic diagram of the upper cover assembly in a battery cell module energy storage box according to an embodiment of the present utility model;

[0036] Figure 4 This is a schematic diagram of the upper cover assembly of a battery cell module energy storage box from another angle, according to an embodiment of the present utility model.

[0037] Figure 5 This is a top view of a battery cell module assembly in a battery cell module energy storage box according to an embodiment of the present utility model;

[0038] Figure 6 This is a schematic diagram of the overall structure of a cell sub-module in a cell module energy storage box according to an embodiment of the present invention;

[0039] Figure 7 This is an exploded view of the structure of a battery cell sub-module in a battery cell module energy storage box according to an embodiment of this utility model;

[0040] Figure 8 for Figure 1 Enlarged view of point A in the middle;

[0041] Figure 9for Figure 1 Enlarged view of point B in the middle;

[0042] Figure 10 This is a schematic diagram of the overall circuit of a battery cell module energy storage box according to an embodiment of the present utility model.

[0043] Label Explanation:

[0044] 1. Top cover assembly; 11. Top cover body; 111. Top cover edge; 12. Sheet metal strip; 13. Top cover locking bolt; 14. Opening; 15. High-voltage connector mounting hole; 16. Fuse mounting hole;

[0045] 2. Battery cell module assembly; 21. Battery cell sub-module; 211. Battery cell body; 212. Electrical connection plate; 213. PC sheet; 214. Module end plate; 215. Module steel strip; 216. Heat insulation pad; 217. Insulating sheet; 218. Buffer pad; 22. Mica sheet; 23. Adapter plate;

[0046] 3. High-voltage connector assembly; 31. High-voltage connector panel; 32. High-voltage connector plug interface; 33. Maintenance switch; 34. Fire nozzle; 35. Low-voltage wiring harness interface;

[0047] 4. Fuse assembly; 41. Fuse body; 42. Fuse base; 43. Fuse cover; 44. Fuse module copper busbar;

[0048] 5. Battery pack control module; 51. Control module housing; 52. Circuit control board;

[0049] 6. Water-cooled plate assembly; 7. Sealing ring. Detailed Implementation

[0050] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0051] Please refer to Figures 1 to 10 A battery cell module energy storage box includes a box structure that can be detachably assembled from a top cover assembly and a water-cooling plate assembly. The box structure contains a battery cell module assembly, a high-voltage connector assembly, and a fuse assembly.

[0052] The battery cell module assembly is composed of multiple battery cell sub-modules connected in series;

[0053] The high-voltage connector assembly and the fuse assembly are both located on the same side of the battery cell module assembly. The side of the upper cover assembly has high-voltage connector mounting holes and fuse mounting holes at positions corresponding to the high-voltage connector assembly and the fuse assembly.

[0054] A battery pack control module can be detachably installed at the fuse mounting hole.

[0055] As can be seen from the above description, the beneficial effects of this utility model are as follows: through the modular design of the top cover assembly, water-cooled plate assembly, cell module assembly, high-voltage connector assembly and fuse assembly, the cell module is formed by multiple sets of cell sub-modules connected in series. While ensuring the energy storage capacity and adaptability of the energy storage box, the structure is simplified, the complexity of parts and manufacturing costs are reduced. The high-voltage connector and fuse assembly are centrally arranged, which is convenient for maintenance and installation. At the same time, the detachable design of the CSC battery pack control module improves the convenience of maintenance.

[0056] Furthermore, the upper cover assembly includes an upper cover body, a sheet metal pressure strip, and upper cover locking bolts;

[0057] The upper cover body is a cuboid cover structure formed by PP vacuum forming. One side of the cuboid cover body is open. The four edges of the upper cover body extend outward horizontally to form an upper cover edge. The sheet metal pressure strip is set on the upper cover edge.

[0058] The sheet metal strip and the corresponding position on the upper cover edge are provided with openings at intervals, and the upper cover locking bolts pass through the openings and are locked and fixed to the water-cooled plate assembly bolts.

[0059] As described above, the top cover assembly is made of PP vacuum forming. Due to the soft nature of PP material and the fact that vacuum forming is a stretching deformation process, the sealing surface of the top cover has a thickness that is thicker around the edges and thinner in the middle after forming. Therefore, in order to ensure the airtightness of the entire electrical box, sheet metal pressure strips are used in conjunction with locking bolts to press the top cover together, which solves the problem of uneven thickness of the PP material sealing surface and ensures the airtightness of the box, i.e., the IP67 protection level, while reducing material costs and mold opening difficulty.

[0060] Furthermore, multiple sets of the battery cell modules are arranged in rows and installed inside the housing structure, and mica sheets are provided between adjacent sets of the battery cell modules.

[0061] As described above, multiple battery cell modules are arranged in rows and isolated by mica sheets, which effectively prevents thermal runaway from spreading to adjacent modules and improves the safety and thermal management efficiency of the electrical box.

[0062] Furthermore, adjacent sets of the battery cell modules are connected in series via adapter plates.

[0063] As described above, by using the adapter bar series module, the electrical connection structure is simplified, the use of traditional wire harness isolation plates is reduced, and the mold opening cost and parts development cycle are lowered.

[0064] Furthermore, each of the aforementioned cell sub-modules includes a cell body, an electrical connection plate, and a PC plate, wherein the cell body includes at least two strings of cells;

[0065] A layer of PC sheet is provided on both the upper and lower sides of the battery cell body. Electrode holes are opened on the PC sheet at the locations corresponding to the battery cell electrodes. The electrical connection bar contacts the battery cell electrodes through the electrode holes.

[0066] The individual cells of the battery cell body are connected in series to form a group through the electrical connection plate.

[0067] As described above, the battery module adopts a combination design of thermoplastic polycarbonate (PC) sheet and electrical connection bar sheet, which not only has strong impact resistance and light weight, but also optimizes the electrode contact method, reduces the number of parts and assembly complexity, and improves the reliability and adaptability of electrical connection.

[0068] Furthermore, the battery cell sub-module also includes a module end plate and a module steel strip;

[0069] The module end plate is mounted on both sides of the battery cell sub-module perpendicular to the mica sheet;

[0070] The module steel strip consists of two strips, which are wound around the module end plates on both sides of the battery cell module near the top and bottom ends, respectively.

[0071] As described above, the design of the module end plate and module steel strip enhances the mechanical strength of the battery cell module, prevents the battery cell from expanding and deforming, and simplifies the fixing structure, thereby reducing manufacturing costs.

[0072] Furthermore, the battery cell module also includes a heat insulation pad, an insulating sheet, and a buffer pad;

[0073] The heat insulation pad is located between the module end plate and the battery cell sub-module;

[0074] The insulating sheet is located between the heat insulation pad and the battery cell module;

[0075] The buffer pad is located between each adjacent cell of the cell sub-module.

[0076] As described above, the arrangement of heat insulation pads, insulating sheets, and buffer pads reduces the temperature difference and mechanical stress between battery cells. The buffer pads (which can be made of 2.0-3.5mm elastic medium) absorb battery cell tolerance and expansion issues, thus extending the battery cell life.

[0077] Furthermore, the high-voltage connector assembly includes a high-voltage connector panel and a high-voltage connector plug interface, a maintenance switch, a fire nozzle, and a low-voltage wiring harness interface located on the high-voltage connector panel;

[0078] The high-voltage connector panel is mounted on the module end plate;

[0079] The high-voltage connector has at least two plug interfaces.

[0080] As described above, the high-voltage connector panel integrates functions such as the MSD maintenance switch and fire nozzles, avoiding poor contact caused by frequent plugging and unplugging of the high-voltage connector, and improving operational safety and maintenance convenience.

[0081] Furthermore, the fuse assembly includes a fuse body, a fuse base, and a fuse cover, and the battery pack control module includes a control module housing and a circuit control board;

[0082] The fuse base is installed at the module end plate, the fuse body is installed on the fuse base, and the fuse cover is attached to the fuse body by a snap fastener.

[0083] The circuit control board is detachably mounted at the fuse mounting hole by screws, and the control module housing is mounted outside the circuit control board.

[0084] As described above, the fuse adopts a snap-on cover and a detachable control module design, which simplifies the replacement process and reduces production difficulty.

[0085] Furthermore, a sealing ring is added to the mounting points of the upper cover assembly and the water-cooled plate assembly.

[0086] As described above, the addition of the sealing ring further enhances the airtightness and protection level of the enclosure, ensuring the reliability of the electrical box in complex environments.

[0087] This utility model provides a battery cell module energy storage box, which is compatible with energy storage boxes in various energy storage systems. The following is a detailed description in conjunction with the embodiments.

[0088] Please refer to Figures 1 to 4 , Figure 8 and Figure 9 Embodiment 1 of this utility model is as follows:

[0089] A type of battery cell module energy storage box, such as Figure 1As shown, the enclosure includes a detachable housing structure consisting of a top cover assembly 1 and a water-cooled plate assembly 6. Inside the housing structure are installed a battery cell module assembly 2, a high-voltage connector assembly 3, and a fuse assembly 4. In this embodiment, the battery cell module assembly 2 is formed by connecting multiple sets of battery cell sub-modules 21 in series, thus forming a complete battery cell module. While ensuring the energy storage capacity and adaptability of the energy storage box, the modular design of the top cover assembly 1, water-cooled plate assembly 6, battery cell module assembly 2, high-voltage connector assembly 3, and fuse assembly 4 simplifies the structure, reducing component complexity and manufacturing costs. In this embodiment, the battery cell sub-module 21 can be composed of four sets of 14-string battery cell modules connected in series to form a 52-string battery cell module, meeting the needs of most energy storage systems on the market.

[0090] Among them, such as Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the high-voltage connector assembly 3 and the fuse assembly 4 are both located on the same side of the cell module assembly 2. The side of the upper cover assembly 1 has high-voltage connector mounting holes 15 and fuse mounting holes 16 corresponding to the positions of the high-voltage connector assembly 3 and fuse assembly 4. The CSC battery pack control module 5 can be detachably installed at the fuse mounting hole 16. This centralized arrangement of the high-voltage connector and fuse assembly 4 facilitates maintenance and installation, while the detachable design of the CSC battery pack control module 5 improves maintenance convenience.

[0091] And in this embodiment, such as Figure 3 and Figure 4 As shown, the upper cover assembly 1 includes an upper cover body 11, a sheet metal strip 12, and upper cover locking bolts 13. The upper cover body 11 is a cuboid cover structure formed by PP vacuum forming. One side of the cuboid cover is open. The upper cover body 11 has horizontally extending upper cover edges 111 around its four edges. The sheet metal strip 12 is set on the upper cover edges 111. At the same time, openings 14 are spaced apart at corresponding positions on the sheet metal strip 12 and the upper cover edges 111. The upper cover locking bolts 13 pass through the openings 14 and are bolted and fixed to the water-cooled plate assembly 6.

[0092] At the same time, for example Figure 1 As shown, a sealing ring 7 is also added at the mounting points of the top cover assembly 1 and the water-cooled plate assembly 6, further improving the airtightness and protection level of the enclosure and ensuring the reliability of the electrical box in complex environments. In this embodiment, the sealing ring 7 can be made of foamed silicone rubber.

[0093] In this embodiment, the top cover assembly 1 is made of PP vacuum forming. Due to the soft nature of PP material and the fact that vacuum forming is a stretching deformation process, the sealing surface area of ​​the top cover has a thickness that is thicker around the edges and thinner in the middle after forming. Therefore, in order to ensure the airtightness of the entire electrical box, a sheet metal strip 12 is used in conjunction with locking bolts to fully press the sealing ring 7 on the edge 111 of the top cover. This solves the problem of uneven thickness of the PP material sealing surface, ensures the airtightness of the box, that is, ensures the IP67 protection level requirement, and at the same time reduces material costs and mold opening difficulty.

[0094] In addition, to reduce the deformation of the upper cover body 11 after PP vacuum forming, additional feature structures can be added to the top and tail of the upper cover body 11 to strengthen its strength. Furthermore, the high-voltage connector mounting hole 15 and fuse mounting hole 16 on the side of the upper cover body 11 are different from the traditional locking holes, which are round holes, but are rectangular holes. This can effectively increase the adjustment range of the upper cover body 11 in aligning with the high-voltage connector assembly 3 and fuse assembly 4 inside the housing structure during installation.

[0095] Please refer to Figures 5 to 7 Embodiment two of this utility model is as follows:

[0096] A battery cell module energy storage box, based on the above embodiment one, in this embodiment, as follows: Figure 5 The top view of the battery cell module assembly 2 shown shows that multiple sets of battery cell sub-modules 21 are arranged in rows and installed in the box structure. Mica sheets 22 are provided between adjacent sets of battery cell sub-modules 21 to effectively prevent thermal runaway from spreading to adjacent modules, improve the safety and thermal management efficiency of the battery box, and also take into account the fuse blowing sequence of the battery cluster.

[0097] At the same time, for example Figure 5 As shown, two adjacent sets of battery cell modules 21 are connected in series via an adapter plate 23, which simplifies the electrical connection structure, reduces the use of traditional wire harness isolation plates, and lowers mold opening costs and parts development cycle.

[0098] like Figure 6 and Figure 7 As shown, each battery cell sub-module 21 includes a battery cell body 211, an electrical connection bar 212, and a PC sheet 213. The battery cell body 211 includes at least two strings of batteries. In this embodiment, the battery cell body 211 can be composed of 14 strings of batteries. A layer of PC sheet 213 is provided on both the upper and lower sides of the battery cell body 211. Electrode holes are opened on the PC sheet 213 at the locations corresponding to the battery cell electrodes. The electrical connection bar 212 contacts the battery cell electrodes through the electrode holes, so that the batteries of the battery cell body 211 are connected in series to form a group through the electrical connection bar 212.

[0099] The battery cell module adopts a combination design of thermoplastic polycarbonate (PC) sheet 213 and electrical connection bar 212, which not only has strong impact resistance and light weight, but also optimizes the electrode contact method, reduces the number of parts and assembly complexity, and improves the reliability and adaptability of electrical connections. Unlike the traditional method of using a wire harness isolation plate to position the electrical connection bar 212 on the top of the battery cell module, this embodiment uses rivets to fix the electrical connection bar 212 to the PC sheet 213, reducing mold opening costs during product development and shortening the development cost of parts. It can also flexibly adapt to the needs of modules with different numbers of strings.

[0100] At the same time, for example Figure 6 As shown, the battery cell module 21 also includes a module end plate 214 and a module steel strip 215. The module end plate 214 is installed on both sides of each battery cell module 21 perpendicular to the mica sheet, and the module steel strip 215 consists of two strips that pass through the module end plates 214 on both sides of the battery cell module 21 and are respectively wound around the battery cell module 21 near the upper and lower ends.

[0101] The design of the module end plate 214 and the module steel strip 215 enhances the mechanical strength of the battery cell module, prevents the battery cell from expanding and deforming, and simplifies the fixing structure, reducing manufacturing costs.

[0102] Another example Figure 7 As shown, the cell sub-module 21 also includes a heat insulation pad 216, an insulating sheet 217, and a buffer pad 218. The heat insulation pad 216 is located between the module end plate 214 and the cell sub-module 21 to reduce the influence of the module end plate 214 on the operating temperature of the cell module and reduce the temperature difference between different cells in the battery box. The insulating sheet 217 is located between the heat insulation pad 216 and the cell sub-module 21 to ensure the safe operation of the cell module. The buffer pad 218 is located between each adjacent cell of the cell sub-module 21. In this embodiment, an elastic medium such as 2.0-3.5mm MPP or silicone rubber can be used as the buffer pad 218 to absorb the thickness tolerance between different cells and to mitigate the cell expansion problem caused by cell cycling.

[0103] Please refer to Figures 8 to 10 Embodiment three of this utility model is as follows:

[0104] A battery cell module energy storage box, based on the above embodiment two, in this embodiment, as follows: Figure 8 As shown, the high-voltage connector assembly 3 includes a high-voltage connector panel 31 and a high-voltage connector plug interface 32, an MSD maintenance switch 33, a fire nozzle 34, and a low-voltage wiring harness interface 35 located on the high-voltage connector panel 31. The high-voltage connector panel 31 is mounted at the module end plate 214, and there are at least two high-voltage connector plug interfaces 32 for power line wiring after the battery cell modules are assembled.

[0105] In this embodiment, the high-voltage connector panel 31 integrates functions such as the MSD maintenance switch 33 and the fire nozzle 34, which avoids poor contact caused by frequent plugging and unplugging of the high-voltage connector and improves operational safety and maintenance convenience.

[0106] like Figure 10 As shown, a schematic diagram of the overall circuit of the energy storage box in this embodiment is provided. The main negative input is connected to the MSD maintenance switch 33 and the fuse, and then sequentially connected to multiple sets of battery cell modules 21. Finally, the output is through the main positive output. Due to the design of the MSD maintenance switch 33, in the actual cluster of the box, there is no need to frequently plug and unplug the high-voltage connector plug. The entire circuit can be disconnected by plugging and unplugging the MSD maintenance switch 33, avoiding poor contact caused by frequent plugging and unplugging of the high-voltage connector.

[0107] At the same time, such as Figure 9 As shown, the fuse assembly 4 includes a fuse body 41, a fuse base 42, and a fuse cover 43. The CSC battery pack control module 5 includes a control module housing 51 and a circuit control board 52. In this embodiment, the fuse base 42 is also installed at the module end plate 214. After the fuse body 41 is installed on the fuse base 42, it is electrically connected to the cell module assembly 2 through the fuse-to-module copper busbar 44. The fuse cover 43 is clipped onto the fuse body 41. When replacing the fuse body 41 later, only the fuse cover 43 needs to be opened for replacement. The circuit control board 52 is detachably installed at the fuse mounting hole 16 with screws. The control module housing 51 covers the circuit control board 52. When replacing the internal fuse later, only the CSC battery pack control module 5 needs to be removed, effectively avoiding the cost increase caused by the need for internal and external wiring of the fuse. Meanwhile, when selecting fuses, fuses with the same voltage as the battery cluster platform voltage can be selected, that is, fuses with a fusing parameter (the product of the square of the current and the time) greater than the fusing parameter of the main control box fuse of the battery cluster. This ensures that the main control box fuse blows before the electrical box fuse, avoiding the need to frequently replace the electrical box fuse later.

[0108] It is also worth noting that in this embodiment, the lower enclosure of the electrical box, namely the water-cooled plate assembly 6, is manufactured by stamping and brazing. The brazing process can effectively ensure the airtightness of the lower enclosure. At the same time, the stamping process is used to produce the parts, which has high production efficiency and stable process. The cost of the parts is greatly reduced compared with the traditional process, and the development difficulty is low, which is conducive to accelerating the development and verification cycle.

[0109] In summary, the battery cell module energy storage box provided by this utility model has a simple structure, can significantly shorten the component development and verification cycle, and saves a lot of manufacturing costs.

[0110] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A battery cell module energy storage box, characterized in that, It includes a housing structure that can be detachably assembled from a top cover assembly and a water-cooling plate assembly, and the housing structure houses a battery cell module assembly, a high-voltage connector assembly, and a fuse assembly; The battery cell module assembly is composed of multiple battery cell sub-modules connected in series; The high-voltage connector assembly and the fuse assembly are both located on the same side of the battery cell module assembly. The side of the upper cover assembly has high-voltage connector mounting holes and fuse mounting holes at positions corresponding to the high-voltage connector assembly and the fuse assembly. A battery pack control module can be detachably installed at the fuse mounting hole.

2. The cell module energy storage box according to claim 1, characterized in that, The upper cover assembly includes an upper cover body, sheet metal pressure strips, and upper cover locking bolts; The upper cover body is a cuboid cover structure formed by PP vacuum forming. One side of the cuboid cover structure is open. The four edges of the upper cover body extend outward horizontally to form an upper cover edge. The sheet metal pressure strip is set on the upper cover edge. The sheet metal strip and the corresponding position on the upper cover edge are provided with openings at intervals, and the upper cover locking bolts pass through the openings and are locked and fixed to the water-cooled plate assembly bolts.

3. The cell module energy storage box according to claim 1, characterized in that, Multiple sets of the battery cell modules are arranged in rows and installed inside the housing structure, with mica sheets placed between adjacent sets of battery cell modules.

4. The cell module energy storage box according to claim 3, characterized in that, The adjacent groups of the battery cell modules are connected in series via an adapter plate.

5. The cell module energy storage box according to claim 3, characterized in that, Each of the battery cell sub-modules includes a battery cell body, an electrical connection plate, and a PC plate, wherein the battery cell body includes at least two strings of battery cells; A layer of PC sheet is provided on both the upper and lower sides of the battery cell body. Electrode holes are opened on the PC sheet at the locations corresponding to the battery cell electrodes. The electrical connection bar contacts the battery cell electrodes through the electrode holes. The individual cells of the battery cell body are connected in series to form a group through the electrical connection plate.

6. The cell module energy storage box according to claim 5, characterized in that, The battery cell sub-module also includes a module end plate and a module steel strip; The module end plate is mounted on both sides of the battery cell sub-module perpendicular to the mica sheet; The module steel strip consists of two strips, which are wound around the module end plates on both sides of the battery cell module near the top and bottom ends, respectively.

7. The cell module energy storage box according to claim 6, characterized in that, The battery cell sub-module also includes a heat insulation pad, an insulating sheet, and a buffer pad; The heat insulation pad is located between the module end plate and the battery cell sub-module; The insulating sheet is located between the heat insulation pad and the battery cell module; The buffer pad is located between each adjacent cell of the cell sub-module.

8. The cell module energy storage box according to claim 6, characterized in that, The high-voltage connector assembly includes a high-voltage connector panel and a high-voltage connector plug interface, a maintenance switch, a fire nozzle, and a low-voltage wiring harness interface located on the high-voltage connector panel. The high-voltage connector panel is mounted on the module end plate; The high-voltage connector has at least two plug interfaces.

9. A cell module energy storage box according to claim 6, characterized in that, The fuse assembly includes a fuse body, a fuse base, and a fuse cover; the battery pack control module includes a control module housing and a circuit control board. The fuse base is installed at the module end plate, the fuse body is installed on the fuse base, and the fuse cover is attached to the fuse body by a snap fastener. The circuit control board is detachably mounted at the fuse mounting hole by screws, and the control module housing is mounted outside the circuit control board.

10. The cell module energy storage box according to claim 1, characterized in that, A sealing ring is also added to the mounting points of the top cover assembly and the water-cooled plate assembly.

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