Battery shell, battery pack and new energy vehicle

Abstract

The embodiment of the utility model provides a kind of battery shell, battery pack and new energy vehicle, it is related to power battery technical field.Battery shell includes lower shell, first partition and second partition, first partition and second partition are all set in lower shell, and the top of first partition is equipped with first plug-in interface, and the bottom of second partition is equipped with second plug-in interface;Second plug-in interface and first plug-in interface plug-in cooperation, so that second partition and first partition cross arrangement, to be used to divide the internal space of lower shell into multiple battery cell installation cavities;Second partition opposite two sides are respectively equipped with first plug-in slot and second plug-in slot, which are communicated with second plug-in interface, first plug-in interface has first plug-in part and second plug-in part on two sides, first plug-in part is set in first plug-in slot, and second plug-in part is set in second plug-in slot.The battery shell can improve the overall structural strength of the battery pack, facilitate disassembly and repair, and improve the repair efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, specifically to a battery casing, a battery pack, and a new energy vehicle. Background Technology

[0002] In the field of power batteries, to reduce the number of components and further improve the space utilization and energy density of battery packs, the industry generally adopts CTP (Cell To Pack) technology. This technology integrates the cells directly into the battery pack, eliminating the traditional module assembly process, thereby simplifying the structure and optimizing performance.

[0003] However, this assembly method also has certain technical limitations. Specifically, due to the lack of support from intermediate modules, the overall structural strength of the battery pack is relatively low. Furthermore, in repair scenarios, CTP technology increases the difficulty of disassembling the battery pack, thus affecting repair efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a battery casing, a battery pack, and a new energy vehicle, which can improve the overall structural strength of the battery pack, facilitate disassembly and maintenance, and improve maintenance efficiency.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In a first aspect, this utility model provides a battery casing, comprising:

[0007] Lower housing;

[0008] A first partition plate, disposed within the lower housing, and having a first insertion interface at its top; and

[0009] The second partition plate is disposed inside the lower housing, and the bottom of the second partition plate has a second insertion interface; the second insertion interface is inserted and engaged with the first insertion interface, so that the second partition plate and the first partition plate are arranged crosswise, so as to divide the internal space of the lower housing into multiple cell mounting cavities;

[0010] The second partition plate has a first insertion slot and a second insertion slot on opposite sides, and both the first insertion slot and the second insertion slot are connected to the second insertion interface; the first insertion interface has a first insertion part and a second insertion part on both sides, the first insertion part is disposed in the first insertion slot, and the second insertion part is disposed in the second insertion slot.

[0011] In an optional embodiment, both the first and second insertion slots extend to the top of the second partition plate.

[0012] In an optional embodiment, the first partition plate has a third insertion slot and a fourth insertion slot on opposite sides, both of which are connected to the first insertion interface; the second insertion interface has a third insertion part and a fourth insertion part on both sides, the third insertion part being disposed in the third insertion slot and the fourth insertion part being disposed in the fourth insertion slot.

[0013] In an optional embodiment, both the third and fourth insertion slots extend to the bottom of the first partition plate.

[0014] In an optional embodiment, there are multiple first partition plates and multiple second partition plates, with multiple first partition plates spaced apart along a first direction and multiple second partition plates spaced apart along a second direction, and both the first insertion slot and the second insertion slot extend along a third direction.

[0015] The first direction, the second direction, and the third direction are perpendicular to each other.

[0016] In an optional embodiment, the lower housing includes a bottom plate and a first side plate, a second side plate, a third side plate, and a fourth side plate, all connected to the bottom plate. The first side plate, the second side plate, the third side plate, and the fourth side plate are connected end to end in sequence. The first side plate and the third side plate are arranged opposite to each other, and the second side plate and the fourth side plate are arranged opposite to each other.

[0017] The two ends of the first partition plate are connected to the first side plate and the third side plate, respectively, and the two ends of the second partition plate abut against the second side plate and the fourth side plate, respectively.

[0018] In an optional embodiment, the first partition plate has a plurality of first bends and a plurality of second bends at both ends, the plurality of first bends being spaced apart and each connected to the side of the first side plate near the third side plate, and the plurality of second bends being spaced apart and each connected to the side of the third side plate near the first side plate; and / or,

[0019] The first partition plate has multiple first limiting parts and multiple second limiting parts at both ends, the multiple first limiting parts are spaced apart, and the multiple second limiting parts are spaced apart; the first side plate has multiple first limiting holes, the multiple first limiting holes are arranged one-to-one with the multiple first limiting parts; the third side plate has multiple second limiting holes, the multiple second limiting holes are arranged one-to-one with the multiple second limiting parts.

[0020] In an optional embodiment, the battery casing further includes a top cover, which is disposed on the top of the lower casing and is connected to both the first partition plate and the second partition plate; wherein the top cover has a plurality of electrode mounting holes.

[0021] Secondly, the present invention provides a battery pack, including a plurality of battery cells and a battery casing as described in any of the foregoing embodiments, wherein at least one battery cell is provided in each battery cell mounting cavity.

[0022] Thirdly, this utility model provides a new energy vehicle, including the battery pack described in the foregoing embodiments.

[0023] The beneficial effects of this utility model embodiment include:

[0024] The battery casing includes a lower casing, a first partition plate, and a second partition plate. The first partition plate is disposed inside the lower casing, and a first insertion interface is provided on the top of the first partition plate. The second partition plate is disposed inside the lower casing, and a second insertion interface is provided on the bottom of the second partition plate. The second insertion interface is inserted into the first insertion interface, so that the second partition plate and the first partition plate are arranged crosswise to divide the internal space of the lower casing into multiple cell mounting cavities. The second partition plate has a first insertion slot and a second insertion slot on opposite sides, and both the first insertion slot and the second insertion slot are connected to the second insertion interface. The first insertion interface has a first insertion part and a second insertion part on both sides, the first insertion part is disposed in the first insertion slot, and the second insertion part is disposed in the second insertion slot.

[0025] The insertion and connection of the first and second partition plates allows for easy disassembly and separation of the battery pack when maintenance is required, thus improving maintenance efficiency. Furthermore, the multiple cell mounting cavities formed by the intersecting arrangement of the first and second partition plates ensure stable cell installation. In addition to the insertion and connection between the second and first connectors, the insertion of the first connector into the first connector slot and the insertion of the second connector into the second connector slot further enhances the stability of both components within the battery casing, thereby improving the overall structural strength of the battery pack.

[0026] The battery pack includes a battery casing, which has all the beneficial effects of the battery casing.

[0027] New energy vehicles include battery packs, which have all the beneficial effects of those battery packs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the structure of a new energy vehicle provided in an embodiment of this utility model;

[0030] Figure 2 This is a schematic diagram of the battery pack provided in an embodiment of the present utility model;

[0031] Figure 3 An exploded view of the battery pack provided in an embodiment of this utility model;

[0032] Figure 4 An exploded view of the battery casing provided in an embodiment of this utility model;

[0033] Figure 5 A schematic diagram of the structure of the first partition plate provided in an embodiment of this utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the second partition plate provided in an embodiment of the present utility model;

[0035] Figure 7 This is a schematic diagram of the lower housing provided in an embodiment of the present utility model.

[0036] Icons: 1000 - New Energy Vehicle; 1100 - Battery Pack; 100 - Battery Shell; 10 - Lower Shell; 11 - First Side Plate; 111 - First Limiting Hole; 12 - Second Side Plate; 13 - Third Side Plate; 131 - Second Limiting Hole; 14 - Fourth Side Plate; 15 - Bottom Plate; 20 - First Divider Plate; 21 - First Insertion Interface; 22 - First Insertion Part; 23 - Second Insertion Part; 24 - First Bending Part; 25 - Second Bending Part; 26 - First Limiting Part; 27 - Second Limiting Part; 30 - Second Divider Plate; 31 - Second Insertion Interface; 32 - First Insertion Slot; 33 - Second Insertion Slot; 34 - Third Insertion Part; 35 - Fourth Insertion Part; 40 - Cell Mounting Cavity; 50 - Top Cover; 51 - Electrode Mounting Hole; 200 - Cell; 201 - Positive Electrode; 202 - Negative Electrode; 1200 - Vehicle Body. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] As described in the background section, the CTP (Completely-to-Pack) assembly method for battery packs has certain technical limitations. Specifically, due to the lack of support from intermediate modules, the overall structural strength of the battery pack is relatively low. Furthermore, in repair scenarios, CTP technology increases the difficulty of disassembling the battery pack, thus affecting repair efficiency.

[0044] Based on this, please refer to Figures 1-7 The present invention provides a battery casing 100, a battery pack 1100, and a new energy vehicle 1000, which can effectively improve the aforementioned technical problems. Specifically, it can improve the overall structural strength of the battery pack 1100, facilitate disassembly and maintenance, and improve maintenance efficiency. The battery casing 100, battery pack 1100, and new energy vehicle 1000 will be described in detail below.

[0045] Please refer to Figure 1 , Figure 1 This is a structural schematic diagram of the new energy vehicle 1000 provided in this embodiment, combined with... Figure 1 The new energy vehicle 1000 includes a battery pack 1100 and a vehicle body 1200. The battery pack 1100 is installed on the vehicle body 1200 to provide electrical energy to the vehicle body 1200 so as to realize the various functions of the vehicle body 1200.

[0046] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of the battery pack 1100 provided in this embodiment. Figure 3 This is an exploded view of the battery pack 1100 provided in this embodiment. (In conjunction with...) Figure 2 and Figure 3 The battery pack 1100 includes a battery casing 100 and multiple battery cells 200. The multiple battery cells 200 are all housed inside the battery casing 100. By directly assembling the multiple battery cells 200 with the battery casing 100, the module assembly step is omitted, which can reduce the number of parts used and improve the space utilization and energy density of the battery pack 1100.

[0047] Further, please refer to Figure 4 , Figure 4 This is an exploded view of the battery casing 100 provided in this embodiment, combined with... Figure 3 and Figure 4 The battery casing 100 includes a lower casing 10, a first partition plate 20, and a second partition plate 30. The first partition plate 20 and the second partition plate 30 are both disposed inside the lower casing 10, which can divide the lower casing 10 into multiple installation spaces for installing the battery cell 200, thereby improving the installation stability of the battery cell 200.

[0048] For details, please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the structure of the first partition plate 20 provided in this embodiment. Figure 6 This is a structural schematic diagram of the second partition plate 30 provided in this embodiment. (In conjunction with...) Figures 3-6 The first partition plate 20 has a first insertion interface 21 at its top, and the second partition plate 30 has a second insertion interface 31 at its bottom. The second insertion interface 31 is inserted into the first insertion interface 21, so that the second partition plate 30 and the first partition plate 20 are arranged crosswise to divide the internal space of the lower housing 10 into multiple cell mounting cavities 40. The second partition plate 30 has a first insertion groove 32 and a second insertion groove 33 on opposite sides, and both the first insertion groove 32 and the second insertion groove 33 are connected to the second insertion interface 31. The first insertion interface 21 has a first insertion part 22 and a second insertion part 23 on both sides. The first insertion part 22 is disposed in the first insertion groove 32, and the second insertion part 23 is disposed in the second insertion groove 33.

[0049] As is easily understood, the insertion and connection of the first partition plate 20 and the second partition plate 30 allows for easy disassembly and separation of the first partition plate 20 and the second partition plate 30 when the battery pack 1100 needs repair. This facilitates disassembly and repair, thereby improving repair efficiency. Furthermore, the multiple cell mounting cavities 40 formed by the cross-arrangement of the first partition plate 20 and the second partition plate 30 ensure stable installation of the cell 200. In addition to the insertion and connection of the second insertion interface 31 and the first insertion interface 21, the insertion and connection of the first insertion part 22 and the first insertion slot 32, and the insertion and connection of the second insertion part 23 and the second insertion slot 33, further enhance the stability of both components within the battery casing 100, thereby improving the overall structural strength of the battery pack 1100.

[0050] It should be noted that each cell mounting cavity 40 is provided with at least one cell 200. That is, when designing the battery pack 1100, a certain number of cells 200 can be set in the cell mounting cavity 40 according to actual requirements.

[0051] To further improve the structural strength of the battery casing 100, increase the mounting positions of the battery cell 200, and enhance the installation stability of the battery cell 200, there are multiple first partition plates 20 and multiple second partition plates 30. The multiple first partition plates 20 are spaced apart along the first direction, and the multiple second partition plates 30 are spaced apart along the second direction. The first insertion slot 32 and the second insertion slot 33 are both extended along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0052] It should be noted that the first direction mentioned above is... Figures 2-7 The X direction is shown in the figure, and the second direction is... Figures 2-7 The Y direction shown in the figure, the third direction is Figures 2-7The Z direction is shown in the figure.

[0053] Combination Figure 5 and Figure 6 In this embodiment, both the first insertion groove 32 and the second insertion groove 33 extend to the top of the second partition plate 30. That is, during the insertion and assembly process, the first insertion portion 22 and the second insertion portion 23 of the first partition plate 20 slide along a third direction within the first insertion groove 32 and the second insertion groove 33, respectively, and the first insertion portion 22 and the second insertion portion 23 can slide to the top of the second partition plate 30, thereby increasing the sliding distance between the first partition plate 20 and the second partition plate 30, making the insertion fit between the two more stable, and further improving the overall structural strength of the battery case 100.

[0054] It should be noted that the second insertion interface 31 has a third insertion portion 34 and a fourth insertion portion 35 on both sides. After the first partition plate 20 and the second partition plate 30 are inserted and assembled, the third insertion portion 34 and the fourth insertion portion 35 also abut against the opposite sides of the first partition plate 20. Therefore, in order to further improve the installation stability, in some other embodiments, the opposite sides of the first partition plate 20 are respectively provided with a third insertion groove and a fourth insertion groove (not shown in the figure), and both the third insertion groove and the fourth insertion groove are connected to the first insertion interface 21; the third insertion portion 34 is disposed in the third insertion groove, and the fourth insertion portion 35 is disposed in the fourth insertion groove.

[0055] Of course, in other embodiments, the third and fourth insertion slots both extend to the bottom of the first partition plate 20, which also makes the insertion and engagement of the first partition plate 20 and the second partition plate 30 more stable, further improving the overall structural strength of the battery case 100.

[0056] Please refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of the lower housing 10 provided in this embodiment, combined with... Figure 4 and Figure 7 Specifically, the lower housing 10 includes a base plate 15 and a first side plate 11, a second side plate 12, a third side plate 13, and a fourth side plate 14, all connected to the base plate 15. The first side plate 11, the second side plate 12, the third side plate 13, and the fourth side plate 14 are connected end to end in sequence. The first side plate 11 and the third side plate 13 are arranged opposite to each other, and the second side plate 12 and the fourth side plate 14 are arranged opposite to each other. The two ends of the first partition plate 20 are connected to the first side plate 11 and the third side plate 13, respectively, and the two ends of the second partition plate 30 abut against the second side plate 12 and the fourth side plate 14, respectively.

[0057] By connecting the two ends of the first partition plate 20 to the first side plate 11 and the third side plate 13 respectively, the connection stability of the overall structure can be improved, and the shaking during the insertion of the second partition plate 30 and the first partition plate 20 can be reduced. Furthermore, by abutting the two ends of the second partition plate 30 to the second side plate 12 and the fourth side plate 14 respectively, installation stability is improved, and the disassembly of the second partition plate 30 and the first partition plate 20 can be facilitated, further enhancing the convenience of maintenance.

[0058] Please combine Figure 5 and Figure 7 The first partition plate 20 has multiple first bends 24 and multiple second bends 25 at both ends. The multiple first bends 24 are spaced apart and are all connected to the side of the first side plate 11 near the third side plate 13. The multiple second bends 25 are spaced apart and are all connected to the side of the third side plate 13 near the first side plate 11. Specifically, in this embodiment, the multiple first bends 24 and multiple second bends 25 are spaced apart along a third direction.

[0059] It should be noted that the connection methods between the first bending portion 24 and the second bending portion 25 and the first side plate 11 and the third side plate 13, respectively, can be welding, bonding, or bolting, etc. By setting this bending structure, the contact area with the first side plate 11 and the third side plate 13 can be increased, thereby improving the connection strength; and by setting multiple first bending portions 24 and second bending portions 25, the connection strength between the partition plate and the side plate can be further improved.

[0060] Furthermore, when connecting the first partition plate 20 to the first side plate 11 and the third side plate 13, in order to improve the accuracy of the installation position of the first partition plate 20, in this embodiment, the first partition plate 20 is provided with a plurality of first limiting parts 26 and a plurality of second limiting parts 27 at both ends. The plurality of first limiting parts 26 are spaced apart, and the plurality of second limiting parts 27 are spaced apart. Specifically, in this embodiment, the plurality of first limiting parts 26 and the plurality of second limiting parts 27 are all spaced apart along a third direction. The first side plate 11 is provided with a plurality of first limiting holes 111, and the plurality of first limiting holes 111 are provided in a one-to-one correspondence with the plurality of first limiting parts 26; the third side plate 13 is provided with a plurality of second limiting holes 131, and the plurality of second limiting holes 131 are provided in a one-to-one correspondence with the plurality of second limiting parts 27.

[0061] It is easy to understand that by cooperating with the limiting part and the limiting hole, the connection position of the first partition plate 20 with the first side plate 11 and the third side plate 13 can be quickly determined, while avoiding the shaking of the first partition plate 20 during the connection process, thus improving assembly efficiency and assembly accuracy.

[0062] Please refer to Figures 2-4The battery casing 100 also includes a top cover 50, which is disposed on the top of the lower casing 10 and is connected to both the first partition plate 20 and the second partition plate 30. By providing the top cover 50, the battery cell 200 can be protected from damage, and its connection with the first partition plate 20 and the second partition plate 30 can also improve the overall structural strength.

[0063] It should be noted that the side of the battery cell 200 facing the top cover 50 typically has a positive electrode 201 and a negative electrode 202. In actual assembly, the positive electrode 201 and negative electrode 202 of multiple battery cells 200 need to be connected to achieve series or parallel connection of multiple battery cells 200. Therefore, in order to facilitate the series and parallel connection of multiple battery cells 200 and improve the ease of installation, in this embodiment, the top cover 50 has multiple electrode mounting holes 51.

[0064] In other words, during assembly, the positive electrode 201 and the negative electrode 202 can pass through the electrode mounting hole 51 and be positioned above the top cover 50, thus facilitating connection using other connectors such as busbars and busbar segments.

[0065] In summary, embodiments of this utility model provide a battery casing 100, a battery pack 1100, and a new energy vehicle 1000. The battery casing 100 includes a lower casing 10, a first partition plate 20, and a second partition plate 30. The first partition plate 20 is disposed within the lower casing 10, and a first insertion interface 21 is provided at the top of the first partition plate 20. The second partition plate 30 is disposed within the lower casing 10, and a second insertion interface 31 is provided at the bottom of the second partition plate 30. The second insertion interface 31 is inserted into and cooperates with the first insertion interface 21, thereby enabling... The second partition plate 30 is arranged intersectingly with the first partition plate 20 to divide the internal space of the lower housing 10 into multiple cell mounting cavities 40. The second partition plate 30 has a first insertion slot 32 and a second insertion slot 33 on opposite sides, and both the first insertion slot 32 and the second insertion slot 33 are connected to the second insertion interface 31. The first insertion interface 21 has a first insertion part 22 and a second insertion part 23 on both sides. The first insertion part 22 is disposed in the first insertion slot 32, and the second insertion part 23 is disposed in the second insertion slot 33.

[0066] By interlocking the first partition plate 20 and the second partition plate 30, when the battery pack 1100 needs repair, the first partition plate 20 and the second partition plate 30 can be directly disassembled and separated, making disassembly and repair convenient and improving repair efficiency. Furthermore, the multiple cell mounting cavities 40 formed by the intersecting arrangement of the first partition plate 20 and the second partition plate 30 ensure stable installation of the cell 200. In addition to the interlocking of the second insertion interface 31 and the first insertion interface 21, the first insertion part 22 is interlocked with the first insertion slot 32, and the second insertion part 23 is interlocked with the second insertion slot 33. This improves the stability of both components within the battery casing 100, thereby enhancing the overall structural strength of the battery pack 1100.

[0067] The battery pack 1100 includes a battery case 100, which has all the functions and benefits of the battery case 100.

[0068] The new energy vehicle 1000 includes a battery pack 1100, which has all the functions and benefits of the battery pack 1100.

[0069] The above description is merely a specific embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery casing, characterized in that, include: Lower housing (10); A first partition plate (20) is disposed inside the lower housing (10), and a first insertion interface (21) is provided on the top of the first partition plate (20); as well as The second partition plate (30) is disposed inside the lower housing (10), and the bottom of the second partition plate (30) is provided with a second insertion interface (31); the second insertion interface (31) is inserted and engaged with the first insertion interface (21), so that the second partition plate (30) and the first partition plate (20) are arranged crosswise to divide the internal space of the lower housing (10) into multiple cell mounting cavities (40); The second partition plate (30) has a first insertion slot (32) and a second insertion slot (33) on opposite sides, and both the first insertion slot (32) and the second insertion slot (33) are connected to the second insertion interface (31). The first insertion interface (21) has a first insertion part (22) and a second insertion part (23) on both sides, the first insertion part (22) is disposed in the first insertion slot (32), and the second insertion part (23) is disposed in the second insertion slot (33).

2. The battery casing according to claim 1, characterized in that, Both the first insertion slot (32) and the second insertion slot (33) extend to the top of the second partition plate (30).

3. The battery casing according to claim 1, characterized in that, The first partition plate (20) has a third insertion slot and a fourth insertion slot on opposite sides, and both the third insertion slot and the fourth insertion slot are connected to the first insertion interface (21); the second insertion interface (31) has a third insertion part (34) and a fourth insertion part (35) on both sides, the third insertion part (34) is disposed in the third insertion slot, and the fourth insertion part (35) is disposed in the fourth insertion slot.

4. The battery casing according to claim 3, characterized in that, Both the third and fourth insertion slots extend to the bottom of the first partition plate (20).

5. The battery casing according to claim 1, characterized in that, There are multiple first partition plates (20) and multiple second partition plates (30). Multiple first partition plates (20) are spaced apart along a first direction, and multiple second partition plates (30) are spaced apart along a second direction. Both the first insertion slot (32) and the second insertion slot (33) extend along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

6. The battery casing according to claim 1, characterized in that, The lower housing (10) includes a bottom plate (15) and a first side plate (11), a second side plate (12), a third side plate (13), and a fourth side plate (14) all connected to the bottom plate (15). The first side plate (11), the second side plate (12), the third side plate (13), and the fourth side plate (14) are connected end to end in sequence. The first side plate (11) and the third side plate (13) are arranged opposite to each other, and the second side plate (12) and the fourth side plate (14) are arranged opposite to each other. The two ends of the first partition plate (20) are connected to the first side plate (11) and the third side plate (13) respectively, and the two ends of the second partition plate (30) abut against the second side plate (12) and the fourth side plate (14) respectively.

7. The battery casing according to claim 6, characterized in that, The first partition plate (20) has multiple first bends (24) and multiple second bends (25) at both ends. The multiple first bends (24) are spaced apart and are all connected to the side of the first side plate (11) near the third side plate (13). The multiple second bends (25) are spaced apart and are all connected to the side of the third side plate (13) near the first side plate (11); and / or, The first partition plate (20) has multiple first limiting parts (26) and multiple second limiting parts (27) at both ends, the multiple first limiting parts (26) are spaced apart, and the multiple second limiting parts (27) are spaced apart; the first side plate (11) has multiple first limiting holes (111), the multiple first limiting holes (111) are arranged one-to-one with the multiple first limiting parts (26); the third side plate (13) has multiple second limiting holes (131), the multiple second limiting holes (131) are arranged one-to-one with the multiple second limiting parts (27).

8. The battery casing according to claim 1, characterized in that, The battery casing (100) also includes a top cover (50), which is disposed on the top of the lower casing (10) and is connected to both the first partition plate (20) and the second partition plate (30); wherein the top cover (50) has a plurality of electrode mounting holes (51).

9. A battery pack, characterized in that, It includes a plurality of battery cells (200) and a battery casing (100) as described in any one of claims 1-8, wherein at least one of the battery cells (200) is provided in each of the battery cell mounting cavities (40).

10. A new energy vehicle, characterized in that, Includes the battery pack (1100) as described in claim 9.

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