A spliced battery module structure

Abstract

This utility model discloses a modular battery module structure, including a module back cover, a first battery shell, a second battery shell, a module front cover, a series hexagonal rod, a locking screw, a rear top cover, a middle top cover, and a front top cover. The first and second battery shells are spliced ​​and fixedly installed between the module back cover and the module front cover. There are two second battery shells in total. This modular battery module structure allows the battery box size to be assembled by disassembling and assembling modules, much like building blocks. Depending on customer requirements, 1P16S, 1P20S, 1P24S, and 1P28S battery modules can be arbitrarily assembled. Additional middle top covers can be added as needed to connect any even number of battery modules in series or parallel. All of these can be achieved by combining these plastic shell modules, resulting in a simple structure, greater flexibility, significantly reduced production costs, and improved production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery box technology, and in particular to a splicing battery module structure. Background Technology

[0002] As energy storage products are applied in different scenarios, the series connection method and number of battery modules are completely different, resulting in a variety of different product combinations. This leads to increased mold opening costs for battery boxes with different combinations (because different battery boxes require the production or purchase of different molds), difficulties in material management, and long product development cycles. To address this, we propose a splicing battery module structure. Utility Model Content

[0003] The main purpose of this utility model is to provide a splicing battery module structure, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A modular battery module structure includes a module rear cover, a first battery shell, a second battery shell, a module front cover, a series hexagonal rod, a locking screw, a rear top cover, a middle top cover, and a front top cover. The first battery shell and the second battery shell are spliced ​​and fixedly installed between the module rear cover and the module front cover. There are two second battery shells, each located after the second first battery shell from both ends. The rear top cover is fixedly installed on the upper surfaces of the rear module rear cover, the two first battery shells, and the second battery shell. The front top cover is fixedly installed on the upper surfaces of the front module front cover, the two first battery shells, and the other second battery shell. The middle top cover is installed on the upper surfaces of multiple first battery shells between the two second battery shells.

[0006] Preferably, hexagonal through holes are provided at the four corners and the middle of the four edges of the surface of the module back cover, battery shell one, battery shell two, and module front cover. Hexagonal sleeves are fixedly installed at the hexagonal through hole ports at the four corners on one side of the battery shell one, battery shell two, and module front cover. Hexagonal sleeves are also fixedly installed at the hexagonal through hole ports at the middle of the four sides on the other side of the module back cover, battery shell one, and battery shell two. A nesting hole is provided on the inner side of the other end of all the hexagonal through holes. The hexagonal sleeves and the nesting holes are connected by an interference fit.

[0007] Preferably, the upper surface of the second battery casing is provided with spiral holes near the front and rear end faces for fixing to the rear or front top cover; the upper surface of the rear cover of the module is provided with spiral holes near the front and rear end faces and the middle position for fixing to the rear top cover; the upper surface of the front cover of the module is provided with spiral holes near the front and rear end faces and the middle position for fixing to the front top cover; and the surface edges of the rear and front top covers are provided with fixing holes that match the spiral holes.

[0008] Preferably, the module back cover is inserted into the nesting hole of the battery housing through a hexagonal sleeve, and simultaneously inserted into the nesting holes at the four corners of the module back cover through a hexagonal sleeve on the battery housing for pre-installation connection.

[0009] Preferably, the front top cover and the middle top cover are both fixedly installed with overlapping clips at one non-adjacent end, and insertion holes are also provided on that end face.

[0010] Preferably, each of the rear top cover and the middle top cover has a fixed plug-in block installed at one non-adjacent end, and an overlap slot is provided on the lower surface of each end. Multiple middle top covers, the middle top cover and the front top cover, and the middle top cover and the rear top cover are connected by plug-in blocks, overlap slots, plug-in holes, and overlap blocks.

[0011] Preferably, both ends of the series hexagonal rod are provided with helical holes that are helically connected to the locking screws. The series hexagonal rods pass through the hexagonal through holes of the module back cover, battery shell one, battery shell two and module front cover and are connected in series, and are locked and fixed by the locking screws at both ends.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this utility model, the size of the battery box can be assembled by disassembling the modules, just like building blocks. Depending on the customer's requirements, 1P16S, 1P20S, 1P24S, and 1P28S battery modules can be arbitrarily assembled. Alternatively, several top covers can be added as needed to connect any even number of battery modules in series or parallel. All of these can be assembled using these plastic shell modules. The structure is simple and more flexible to use, which greatly reduces production costs and improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a spliced ​​battery module according to the present invention;

[0015] Figure 2 This is a view showing the top cover of a splicing battery module structure of this utility model when opened.

[0016] Figure 3 This is a disassembly diagram illustrating a splicing battery module structure according to this utility model;

[0017] Figure 4 This is a partial enlarged view of the battery casing of a spliced ​​battery module structure according to this utility model;

[0018] Figure 5 This is an enlarged view of the top cover of a spliced ​​battery module structure according to this utility model;

[0019] Figure 6 This is a magnified partial view of the top cover of a spliced ​​battery module structure according to this utility model.

[0020] In the diagram: 1. Module back cover; 2. Battery housing one; 21. Hexagonal through hole; 22. Hexagonal sleeve; 23. Nesting hole; 3. Battery housing two; 31. Spiral hole; 4. Module front cover; 5. Connecting hexagonal rod; 6. Locking screw; 7. Rear top cover; 71. Fixing hole; 8. Middle top cover; 81. Insertion block; 82. Overlapping slot; 83. Insertion hole; 84. Overlapping block; 9. Front top cover. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Example 1:

[0023] like Figure 1-6 As shown, a modular battery module structure includes a module rear cover 1, a battery housing 1 2, a battery housing 2 3, a module front cover 4, a series hexagonal rod 5, a locking screw 6, a rear top cover 7, a middle top cover 8, and a front top cover 9. The battery housing 1 2 and the battery housing 2 3 are spliced ​​and fixedly installed between the module rear cover 1 and the module front cover 4. There are two battery housings 2 3, which are respectively located after the second battery housing 1 2 from both ends. The rear top cover 7 is fixedly covered on the upper surface of the rear module rear cover 1, the two battery housings 1 2, and the battery housing 2 3. The front top cover 9 is fixedly covered on the upper surface of the front module front cover 4, the two battery housings 1 2, and the other battery housing 2 3. The middle top cover 8 is covered on the upper surface of multiple battery housings 1 2 between the two battery housings 2 3.

[0024] Hexagonal through holes 21 are provided at the four corners and the middle of the four edges of the surfaces of the module back cover 1, battery housing 1, battery housing 2, and module front cover 4. Hexagonal sleeves 22 are fixedly installed at the ports of the hexagonal through holes 21 at the four corners on one side of the battery housing 1, battery housing 2, and module front cover 4. Hexagonal sleeves 22 are also fixedly installed at the ports of the hexagonal through holes 21 at the middle of the four sides on the other side of the module back cover 1, battery housing 1, and battery housing 2. The inner side of the other end of all hexagonal through holes 21 is opened. A nesting hole 23 is provided, and the hexagonal sleeve 22 is connected to the nesting hole 23 by an interference fit. Specifically, when the battery case 1 2 and the module back cover 1 are connected, the hexagonal sleeves 22 at the four corners of the battery case 1 2 are interference fitted into the nesting holes 23 at the four corners of the module back cover 1. Similarly, the hexagonal sleeves 22 at the center of the four edges of the module back cover 1 are connected into the nesting holes 23 of the battery case 1 2 in the same way. The battery case 1 2, battery case 2 3 and module front cover 4 connected behind are pre-connected in this way.

[0025] The upper surface of the battery casing 2 3 is provided with screw holes 31 near the front and rear end faces to fix the rear top cover 7 or the front top cover 9. The upper surface of the module rear cover 1 is provided with screw holes 31 near the front and rear end faces and the middle position to fix the rear top cover 7. The upper surface of the module front cover 4 is provided with screw holes 31 near the front and rear end faces and the middle position to fix the front top cover 9. The surface edges of the rear top cover 7 and the front top cover 9 are provided with fixing holes 71 that match the screw holes 31.

[0026] The module back cover 1 is inserted into the nesting hole 23 of the battery housing 2 through the hexagonal sleeve 22. At the same time, the hexagonal sleeve 22 on the battery housing 2 is inserted into the nesting hole 23 at the four corners of the module back cover 1 for pre-installation connection.

[0027] The front top cover 9 and the middle top cover 8 are both fixedly installed with overlapping clips 84 at one end that is not adjacent to each other, and insertion holes 83 are also provided on this end face.

[0028] Both the rear top cover 7 and the middle top cover 8 have a fixed insertion block 81 at one of their non-adjacent ends, and an overlapping slot 82 is provided on the lower surface of each end. Multiple middle top covers 8, the middle top cover 8 and the front top cover 9, and the middle top cover 8 and the rear top cover 7 are connected via insertion blocks 81, overlapping slots 82, insertion holes 83, and overlapping blocks 84. Specifically, when installing the front top cover 9, the middle top cover 8, and the rear top cover 7, first, the front top cover 9 is screwed through the fixing hole 71 on its surface and then screwed into the assembled box module front cover 4 and the power supply. The top cover is fixed in the spiral hole 31 on the second battery casing 3. Then, the three plug-in blocks 81 of the middle top cover 8 are inserted obliquely into the three plug-in holes 83 of the front top cover 9. The middle top cover 8 is then laid flat to cover the port, so that the overlapping clip 84 is inserted into the overlapping clip groove 82. The remaining middle top covers 8 are connected in the same way. The rear top cover 7 at the last end is also connected. After the rear top cover 7 is connected, it needs to be fixed by screwing through the fixing hole 71 and screwing it into the spiral hole 31 on the rear cover 1 of the module and the second battery casing 3, thus completing the installation of the top cover.

[0029] Both ends of the connecting hexagonal rod 5 are provided with spiral holes that are spirally connected to the locking screws 6. The connecting hexagonal rod 5 passes through the hexagonal through holes 21 after the module back cover 1, battery shell 1 2, battery shell 2 3 and module front cover 4 are connected in series, and is locked and fixed by the locking screws 6 at both ends. Specifically, after the battery box is pre-connected, there are eight positions with long holes connected by multiple hexagonal through holes 21. The eight connecting hexagonal rods 5 pass through, and then both ends of the connecting hexagonal rod 5 are screwed into the spiral holes at both ends by the locking screws 6 to lock them. In this way, the lower part of the entire box module can be firmly fixed and assembled.

[0030] It should be noted that this utility model is a splicing battery module structure. When the battery shell 2 and the module back cover 1 are connected, the hexagonal sleeves 22 at the four corners of the battery shell 2 are interference-fitted into the nesting holes 23 at the four corners of the module back cover 1. Similarly, the hexagonal sleeves 22 in the middle of the four edges of the module back cover 1 are connected into the nesting holes 23 of the battery shell 2 in the same way. In this way, the battery shell 2, battery shell 3 and module front cover 4 are pre-connected. After the battery box is pre-connected, there are eight positions with elongated holes connected by multiple hexagonal through holes 21. Eight series hexagonal rods 5 pass through, and then both ends of the series hexagonal rods 5 are screwed into the spiral holes at both ends by locking screws 6 to lock them. In this way, the lower part of the entire box module can be firmly fixed and assembled. During the assembly, the battery cells are also embedded for assembly. Then, the front top cover 9 and the middle top cover are installed. 8. When installing the rear top cover 7, first screw the front top cover 9 through the fixing holes 71 on its surface and screw it into the spiral holes 31 on the assembled box module front cover 4 and battery housing 2 3 to fix it. Then, insert the three plug blocks 81 of the middle top cover 8 diagonally into the corresponding plug holes 83 of the front top cover 9. Then, flatten the middle top cover 8 to cover the port, so that the overlapping clip 84 is engaged in the overlapping clip groove 82. Connect the remaining middle top covers 8 in the same way, and connect the rear top cover 7 at the last end. After the rear top cover 7 is connected, screw the screws through the fixing holes 71 and screw it into the spiral holes 31 on the rear cover 1 and battery housing 2 3 of that end module to fix it, thus completing the installation of the top cover. Adding or removing one middle top cover 8 corresponds to adding or removing two battery housings 1 2, so that the battery packs can be added or removed as needed to achieve various combination methods, as shown in the instruction manual. Figure 2 The first example is a 1P24S battery module. If one top cover (8) is removed from this module, four fewer cells will be installed, resulting in a 1P20S battery module. If one top cover (8) is added to the original module, it becomes a 1P28S battery module, and so on. This allows for multiple combinations and splicing, making it more flexible.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tiled battery module structure, characterized by: The module includes a rear cover (1), a first battery case (2), a second battery case (3), a front cover (4), a series hexagonal rod (5), a locking screw (6), a rear top cover (7), a middle top cover (8), and a front top cover (9). The first battery case (2) and the second battery case (3) are spliced ​​and fixedly installed between the rear cover (1) and the front cover (4). There are two second battery cases (3), which are respectively located after the second first battery case (2) from both ends. The rear top cover (7) is fixedly installed on the upper surface of the rear module rear cover (1), the two first battery cases (2), and the second battery case (3). The front top cover (9) is fixedly installed on the upper surface of the front module front cover (4), the two first battery cases (2), and the other second battery case (3). The middle top cover (8) is installed on the upper surface of multiple first battery cases (2) between the two second battery cases (3).

2. The spliced battery module structure according to claim 1, wherein: Hexagonal through holes (21) are provided at the four corners and the middle of the four edges of the module back cover (1), battery shell one (2), battery shell two (3) and module front cover (4). Hexagonal sleeves (22) are fixedly installed at the ports of the hexagonal through holes (21) at the four corners of one side of the battery shell one (2), battery shell two (3) and module front cover (4). Hexagonal sleeves (22) are also fixedly installed at the ports of the hexagonal through holes (21) at the middle of the four sides of the other side of the module back cover (1), battery shell one (2) and battery shell two (3). A nesting hole (23) is provided on the inner side of the other end of all the hexagonal through holes (21). The hexagonal sleeves (22) and the nesting holes (23) are connected by an interference fit.

3. The modular battery pack structure of claim 2, wherein: The upper surface of the battery casing (3) is provided with spiral holes (31) near the front and rear end faces for fixing to the rear top cover (7) or the front top cover (9). The upper surface of the module rear cover (1) is provided with spiral holes (31) near the front and rear end faces and the middle position for fixing to the rear top cover (7). The upper surface of the module front cover (4) is provided with spiral holes (31) near the front and rear end faces and the middle position for fixing to the front top cover (9). The surface edges of the rear top cover (7) and the front top cover (9) are provided with fixing holes (71) that match the spiral holes (31).

4. The modular battery pack structure of claim 3, wherein: The module back cover (1) is inserted into the nesting hole (23) of the battery case (2) through the hexagonal sleeve (22), and at the same time, it is inserted into the nesting hole (23) at the four corners of the module back cover (1) through the hexagonal sleeve (22) on the battery case (2) for pre-installation connection.

5. The modular battery pack structure of claim 4, wherein: The front top cover (9) and the middle top cover (8) are both fixedly installed with overlapping clips (84) at one non-adjacent end, and insertion holes (83) are also provided on that end face.

6. The modular battery module structure according to claim 5, characterized in that: The rear top cover (7) and the middle top cover (8) are each fixedly installed with a plug-in block (81) at one of their non-adjacent ends, and an overlap slot (82) is provided on the lower surface of each end. The multiple middle top covers (8), the middle top cover (8) and the front top cover (9), and the middle top cover (8) and the rear top cover (7) are connected by plug-in blocks (81), overlap slots (82), plug-in holes (83), and overlap blocks (84).

7. The modular battery module structure according to claim 5, characterized in that: Both ends of the series hexagonal rod (5) are provided with spiral holes that are spirally connected to the locking screw (6). The series hexagonal rod (5) passes through the hexagonal through hole (21) after the module back cover (1), battery shell one (2), battery shell two (3) and module front cover (4) are connected in series, and is locked and fixed by the locking screw (6) at both ends.

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