Battery module coaming structure and battery module

Abstract

The utility model provides a battery module coaming structure and a battery module. The battery module coaming structure comprises at least two end plate assemblies which are oppositely arranged; the two ends of the two end plate assemblies which are oppositely arranged are detachably connected through different side plate assemblies and define a containing cavity used for containing a battery cell, and each side plate assembly comprises at least two side plate bodies which are connected with each other; the sides, close to each other, of every two adjacent side plate bodies are each provided with at least one set of oppositely-arranged connecting wing lugs, and every two oppositely-arranged connecting wing lugs are provided with at least one set of clamping structures matched with each other, so that every two adjacent side plate bodies are detachably connected. The side plate structure of the battery module solves the problem that the side plate structure of the battery module in the prior art is difficult to assemble and fix.

Description

Technical Field

[0001] The utility model relates to the field of battery equipment, and in particular to a battery module enclosure structure and a battery module. Background Art

[0002] In the manufacturing process of battery modules, the side panels are components of the battery modules and mainly play the role of fixing and protecting the battery cells. Traditionally, the side panels of battery modules are usually made of aluminum materials, but due to the low strength of aluminum materials, they are prone to deformation during the assembly process, resulting in a decrease in the overall performance of the battery module. In addition, the cost of aluminum materials is relatively high, which increases the production cost.

[0003] In response to the problems of insufficient strength and high cost of aluminum side panels in the existing technology, researchers have proposed a new steel side panel solution. Compared with aluminum side panels, steel side panels have higher strength, can effectively avoid deformation problems, and reduce material costs. However, there are still some challenges in the design and manufacturing process of steel side panels.

[0004] First, the wall thickness of the steel side panel is small, resulting in insufficient strength at the side panel installation point, which is prone to failure during the assembly process. Second, the steel side panel is usually composed of two sub-panels, which need to be assembled during the battery module assembly process. At the same time, since the steel side panel cannot be welded after electrophoresis, there is a certain degree of difficulty in assembling and fixing the steel side panel.

[0005] Therefore, there is a problem in the prior art that the side plate structure of the battery module is difficult to assemble and fix. Utility Model Content

[0006] The main purpose of the utility model is to provide a battery module enclosure structure and a battery module, so as to solve the problem of difficulty in assembling and fixing the side plate structure of the battery module in the prior art.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a battery module enclosure structure is provided, comprising: at least two end plate assemblies, the two end plate assemblies are arranged opposite to each other; at least two side plate assemblies, the two ends of the two oppositely arranged end plate assemblies are respectively detachably connected by different side plate assemblies to form a receiving cavity for accommodating battery cells, the side plate assembly comprises at least two mutually connected side plate bodies, and at least one group of oppositely arranged connecting wing ears are respectively arranged on the side where the two adjacent side plate bodies are close to each other, and the two oppositely arranged connecting wing ears have at least one group of mutually matching clip structures to enable the two adjacent side plate bodies to be detachably connected.

[0008] Furthermore, each group of relatively arranged connecting wing ears includes a first wing ear and a second wing ear, the snap-fit ​​structure of the first wing ear is a snap-fit ​​notch or a snap-fit ​​hole, the snap-fit ​​structure of the second wing ear is a bending protrusion, the bending protrusion can be bendably arranged on the second wing ear, and the bending protrusion can pass through the snap-fit ​​notch or the snap-fit ​​hole and abut against the first wing ear.

[0009] Furthermore, the snap-fit ​​structure of the first wing ear is a snap-fit ​​hole, which penetrates the first wing ear along the thickness direction of the first wing ear. In the length direction of the side plate body, the length of the second wing ear is smaller than the length of the first wing ear, and the bent protrusion corresponding to the snap-fit ​​hole is arranged on the periphery of the second wing ear.

[0010] Furthermore, the clamping structure of the first wing ear is a clamping notch arranged on the periphery of the first wing ear, and the bent protrusion is arranged on the periphery of the second wing ear corresponding to the clamping notch.

[0011] Furthermore, the bending protrusion includes a connecting section and an abutting section connected in sequence, and one end of the connecting section away from the abutting section is connected to the second wing ear, at least a portion of the connecting section can be bent and pass through the snap-fit ​​notch, and at least a portion of the abutting section abuts against the peripheral edge of the first wing ear corresponding to the snap-fit ​​notch away from the second wing ear.

[0012] Further, among two adjacent side panel bodies, one side of one side panel body is only provided with a first wing ear, and one side of the other side panel body is only provided with a second wing ear; or both side panel bodies have a first wing ear and a second wing ear, and the first wing ear of one side panel body cooperates with the second wing ear of the other side panel body.

[0013] Furthermore, the thickness direction of the connecting wing ears is perpendicular to the thickness direction of the side plate body.

[0014] Furthermore, the battery module enclosure structure also includes a plurality of fixing members, each group of relatively arranged connecting wing ears corresponds to at least one fixing member and is provided with a corresponding fixing hole, and at least a portion of the fixing member passes through the fixing holes of two relatively arranged connecting wing ears in sequence.

[0015] Furthermore, the battery module enclosure structure also includes a plurality of reinforcing blocks, each group of relatively arranged connecting wing ears corresponds to at least one reinforcing block, and the reinforcing block is arranged on a side of one of the connecting wing ears away from the other connecting wing ears and around the periphery of the fixing hole.

[0016] According to another aspect of the present invention, a battery module is provided, comprising a plurality of battery cells and the above-mentioned battery module enclosure structure, wherein the plurality of battery cells are arranged in the accommodating cavity.

[0017] Applying the technical solution of the utility model, the battery module enclosure structure in the present application includes at least two end plate assemblies and at least two side plate assemblies. The two end plate assemblies are arranged opposite to each other; the two ends of the two oppositely arranged end plate assemblies are detachably connected through different side plate assemblies and enclose a receiving cavity for accommodating the battery cell, and the side plate assembly includes at least two mutually connected side plate bodies, and at least one group of oppositely arranged connecting wing ears are respectively arranged on the side where the two adjacent side plate bodies are close to each other, and the two oppositely arranged connecting wing ears have at least one group of mutually matched clamping structures, so that the two adjacent side plate bodies can be detachably connected.

[0018] When using the battery module enclosure structure in the present application, since the two adjacent side panel bodies of the side panel assembly that are close to each other have relatively arranged connecting wing ears, the two adjacent side panel bodies can be detachably connected through the clamping structure of the relatively arranged connecting wing ears. Therefore, the side panel assembly of the battery module enclosure structure in the present application can realize the assembly and fixation of the side panel body through the clamping structure of the connecting wing ears, thereby overcoming the problem that the steel side panels in the prior art cannot be welded and fixed after electrophoresis. At the same time, in the production process of the battery module, it is also convenient for fixing and positioning in the production process, reducing the difficulty of production, improving production efficiency, and reducing production costs. Therefore, the battery module enclosure structure in the present application effectively solves the problem of difficulty in assembling and fixing the side panel structure of the battery module in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic structural diagram of a battery module according to a specific embodiment of the utility model is shown;

[0021] Figure 2 Shows Figure 1 The structural explosion diagram of the battery module;

[0022] Figure 3 Shows Figure 1 A schematic diagram of the structure when the first wing ear of the battery module enclosure structure has a snap-in notch;

[0023] Figure 4 Shows Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 Shows Figure 3 Exploded diagram of

[0025] Figure 6 Shows Figure 5 The enlarged view of point B in the middle;

[0026] Figure 7 Shows Figure 1 A schematic diagram of the structure when the first wing ear of the battery module enclosure structure has a snap-in hole;

[0027] Figure 8 Shows Figure 7 Enlarged view of point C in the middle;

[0028] Fig. 9 Shows Figure 7 Exploded diagram of

[0029] Fig.10 Shows Fig. 9 The enlarged view of point D in the middle;

[0030] Fig.11 Shows Figure 1 A schematic diagram of a structure in which the bending protrusion of the battery module enclosure structure has a connecting section and an abutting section;

[0031] Fig.12 Shows Fig.11 Enlarged view of point E in the middle;

[0032] Fig.13 Shows Fig.11 Exploded diagram of

[0033] Fig.14 Shows Fig.13 The enlarged view of F in the middle;

[0034] Fig.15 A schematic diagram of the structure of a reinforcement block in a specific embodiment of the present application is shown;

[0035] Fig.16 A schematic structural diagram of a reinforcement block in another specific embodiment of the present application is shown.

[0036] The above drawings include the following reference numerals:

[0037] 10. End plate assembly; 20. Side plate assembly; 21. Side plate body; 211. Connecting wing ear; 2111. First wing ear; 2112. Second wing ear; 2113. Fixing hole; 212. Snap-fit ​​structure; 2121. Snap-fit ​​notch; 2122. Snap-fit ​​hole; 2123. Bending protrusion; 2124. Connecting section; 2125. Abutting section; 30. Battery cell; 40. Reinforcement block; 50. Middle plate. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0040] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0041] In order to solve the problem of difficulty in assembling and fixing the side plate structure of the battery module in the prior art, the present application provides a battery module enclosure structure and a battery module.

[0042] like Figures 1 to 16 As shown, the battery module enclosure structure in the present application includes at least two end plate assemblies 10 and at least two side plate assemblies 20. The two end plate assemblies 10 are arranged opposite to each other; the two ends of the two oppositely arranged end plate assemblies 10 are detachably connected through different side plate assemblies 20 and enclose a receiving cavity for accommodating the battery cell 30, and the side plate assembly 20 includes at least two mutually connected side plate bodies 21, and at least one group of oppositely arranged connecting wing ears 211 are respectively arranged on the side where the two adjacent side plate bodies 21 are close to each other, and the two oppositely arranged connecting wing ears 211 have at least one group of mutually matched clamping structures 212, so that the two adjacent side plate bodies 21 can be detachably connected.

[0043] When using the battery module enclosure structure in the present application, since the two adjacent side panel bodies 21 of the side panel assembly 20 are provided with relatively arranged connecting wing ears 211 on the side close to each other, the two adjacent side panel bodies 21 can be detachably connected through the clamping structure 212 of the relatively arranged connecting wing ears 211. Therefore, the side panel assembly 20 of the battery module enclosure structure in the present application can realize the assembly and fixation of the side panel body 21 through the clamping structure 212 of the connecting wing ears 211, thereby overcoming the problem that the steel side panels in the prior art cannot be welded and cannot be fixed after electrophoresis. At the same time, in the production process of the battery module, it is also convenient for fixing and positioning in the production process, reducing the difficulty of production, improving production efficiency, and reducing production costs. Therefore, the battery module enclosure structure in the present application effectively solves the problem of difficult assembly and fixing of the side panel structure of the battery module in the prior art.

[0044] Optionally, the side panel body 21 is made of steel. In addition, the side panel assembly 20 in the present application may have multiple side panel bodies 21, and the multiple side panel bodies 21 may be arranged along a preset direction, and at this time, two adjacent side panel bodies 21 are also assembled and fixed according to the relatively arranged connecting wing ears 211. Among them, the multiple in the implementation of the present application includes two and more than two.

[0045] Optionally, each group of relatively arranged connecting wing ears 211 includes a first wing ear 2111 and a second wing ear 2112, the snap-fit ​​structure 212 of the first wing ear 2111 is a snap-fit ​​notch 2121 or a snap-fit ​​hole 2122, and the snap-fit ​​structure 212 of the second wing ear 2112 is a bending protrusion 2123, the bending protrusion 2123 can be bendably arranged on the second wing ear 2112, and the bending protrusion 2123 can pass through the snap-fit ​​notch 2121 or the snap-fit ​​hole 2122 and abut against the first wing ear 2111. That is to say, in the present application, when assembling two adjacent side panel bodies 21, for the first wing ear 2111 and the second wing ear 2112 relative to the two side panel bodies 21, the bending protrusion 2123 of the second wing ear 2112 can be bent so that the bending protrusion 2123 can pass through the snap-fit ​​notch 2121 or the snap-fit ​​hole 2122, thereby realizing the assembly of the two side panel bodies 21.

[0046] Optionally, a punching and forming structure can be formed between the side panel body 21 and the first wing ear 2111 and the second wing ear 2112, and the snap-in notch 2121, the snap-in hole 2122 and the bending protrusion 2123 can be formed together during the punching process, thereby ensuring that no additional forming steps are added during the production of the side panel assembly 20, thereby reducing production costs.

[0047] In such Figures 7 to 10 In the illustrated embodiment, the snap-fit ​​structure 212 of the first wing ear 2111 is a snap-fit ​​hole 2122, and the snap-fit ​​hole 2122 penetrates the first wing ear 2111 along the thickness direction of the first wing ear 2111. In the length direction of the side plate body 21, the length of the second wing ear 2112 is less than the length of the first wing ear 2111, and the bending protrusion 2123 is arranged at the periphery of the second wing ear 2112 corresponding to the snap-fit ​​hole 2122. In other words, in the present application, the periphery of the second wing ear 2112 used for connecting the bending protrusion 2123 is not flush with the periphery corresponding to the first wing ear 2111, so as to ensure that the bending protrusion 2123 can pass through the corresponding snap-fit ​​hole 2122 more easily.

[0048] In such Figures 3 to 6 In the illustrated embodiment, the snap-fit ​​structure 212 of the first wing ear 2111 is a snap-fit ​​notch 2121 disposed on the periphery of the first wing ear 2111 , and the bent protrusion 2123 is disposed on the periphery of the second wing ear 2112 corresponding to the snap-fit ​​notch 2121 .

[0049] Preferably, the bending protrusion 2123 includes a connecting section 2124 and an abutting section 2125 connected in sequence, one end of the connecting section 2124 away from the abutting section 2125 is connected to the second wing ear 2112, at least a portion of the connecting section 2124 can be bent and pass through the clamping notch 2121, and at least a portion of the abutting section 2125 abuts against the peripheral edge of the first wing ear 2111 of the clamping notch 2121 away from the second wing ear 2112. Figures 11 to 14 In the embodiment shown, the bending protrusion 2123 composed of the connecting section 2124 and the abutting section 2125 is T-shaped, and this arrangement can ensure that the bending protrusion 2123 will not be separated from the clamping notch 2121 after bending, thereby ensuring the stability of the connection between the two adjacent side plate bodies 21. Of course, in the present application, according to actual usage, the bending protrusion 2123 can also be set to other shapes, as long as it ensures that the connecting section 2124 can cooperate with the clamping notch 2121 and the abutting section 2125 can abut against the outer periphery of the clamping notch 2121.

[0050] Optionally, in two adjacent side panel bodies 21, one side of one side panel body 21 is only provided with a first wing ear 2111, and one side of the other side panel body 21 is only provided with a second wing ear 2112; or both side panel bodies 21 have a first wing ear 2111 and a second wing ear 2112, and the first wing ear 2111 of one side panel body 21 cooperates with the second wing ear 2112 of the other side panel body 21. In a preferred embodiment of the present application, the side panel assembly 20 has two side panel bodies 21 arranged in a vertical direction, and the side panel body 21 located at the upper side has a plurality of first wing ears 2111 on a side close to the side panel body 21 located at the lower side, and the side panel body 21 located at the lower side has a plurality of second wing ears 2112 corresponding to the plurality of first wing ears 2111, and the plurality of first wing ears 2111 and the plurality of second wing ears 2112 are arranged at equal intervals along the length direction of the side panel body 21. This arrangement can ensure that all the bending protrusions 2123 of the second wing ears 2112 are bent upwards first during the assembly process, thereby ensuring that the lower surface of the connecting wing ears 211 of the side panel body 21 located below is the surface of the second wing ears 2112 away from the first wing ears 2111, and there will be no end of the bent bending protrusion 2123 after bending, thereby ensuring the flatness of the lower surface of the connecting wing ears 211 of the side panel body 21 located below, and will not affect the subsequent installation of the battery module in the battery pack. In addition, it should be added that at this time, the lengths of the two side panel bodies 21 are the same but the heights can be different.

[0051] Optionally, the thickness direction of the connecting wing ears 211 is perpendicular to the thickness direction of the side plate body 21. Of course, the setting direction of the connecting wing ears 211 and the arrangement direction of two adjacent side plate bodies 21 in the present application can be adaptively adjusted according to actual usage.

[0052] Specifically, the battery module enclosure structure also includes a plurality of fixings, each group of relatively arranged connecting wing ears 211 corresponds to at least one fixing and is correspondingly provided with a fixing hole 2113, and at least a portion of the fixings sequentially passes through the fixing holes 2113 of the two relatively arranged connecting wing ears 211. In the present application, the mutually cooperating clamping structure 212 of the connecting wing ears 211 can also facilitate the alignment of the fixing holes 2113 of the two relatively arranged connecting wing ears 211, thereby ensuring that the fixings can more easily pass through the two fixing holes 2113 of the two relatively arranged connecting wing ears 211, so as to further fix the two adjacent side plate bodies 21. In addition, in the present application, since the side plate body 21 of the side plate assembly 20 can form a detachable integrated structure after being assembled through the mutually cooperating clamping structure, the number of parts entering the factory is reduced, which is convenient for warehouse management and quality control of the hole positions of the fixing holes 2113 of the two relatively arranged connecting wing ears 211, thereby improving the quality of the battery module product.

[0053] Optionally, the battery module enclosure structure also includes a plurality of reinforcing blocks 40, each group of relatively arranged connecting wing ears 211 corresponds to at least one reinforcing block 40, and the reinforcing block 40 is arranged on one side of one connecting wing ear 211 away from the other connecting wing ear 211 and arranged around the periphery of the fixing hole 2113. By providing the reinforcing block 40, the installation strength of the side panel assembly 20 can be effectively improved, and the problem of failure of the connection of the fixing part due to the small thickness of the connecting wing ear 211 can be avoided. In addition, since the reinforcing block 40 is provided locally at the connecting wing ear 211, it can also be ensured that the overall weight of the battery module enclosure structure will not be too large. In addition, the reinforcing block 40 can be installed or grouped by gluing or as a separate part.

[0054] Alternatively, if Fig.15 and Fig.16 As shown, the reinforcing block 40 can be circular or square. Of course, the reinforcing block 40 can also be set to other shapes according to actual use.

[0055] The present application also provides a battery module, such as Figure 1 and Figure 2As shown, the battery module includes a plurality of battery cells 30 and a battery module enclosure structure of any of the above embodiments, wherein the plurality of battery cells 30 are disposed in an accommodation cavity enclosed by two oppositely disposed end plate assemblies which are detachably connected and enclosed by different side plate assemblies. Among them, a plurality of battery cells arranged along the length direction of the side plate assemblies form a battery cell group, and the battery module includes at least one battery cell group.

[0056] Optionally, when the battery module in the battery module enclosure structure includes at least two groups of battery cell groups, the battery module enclosure structure further includes at least one intermediate plate 50, which is disposed inside the accommodating cavity, and the two ends of the intermediate plate 50 are detachably connected to different end plate assemblies 10. In addition, the intermediate plate 50 can be used to separate different battery cell groups. For example, Figure 2 As shown, the battery module includes two battery cell groups, and the intermediate plate 50 is arranged between two adjacent battery cell groups. The number of intermediate plates 50 is adaptively selected according to the number and arrangement of the battery cell groups in the battery module, and the embodiment of the present application does not limit this.

[0057] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0058] 1. Effectively solve the problem of difficult assembly and fixing of the side plate structure of the battery module in the prior art;

[0059] 2. Simple structure and stable performance.

[0060] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0062] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery module enclosure structure, characterized in that: include: At least two end plate assemblies (10), the two end plate assemblies (10) being arranged opposite to each other; At least two side panel assemblies (20), the two ends of the two oppositely arranged end panel assemblies (10) are detachably connected through different side panel assemblies (20) and enclose a receiving cavity for receiving the battery cell (30), the side panel assembly (20) comprises at least two mutually connected side panel bodies (21), and at least one group of oppositely arranged connecting wing ears (211) are respectively arranged on the sides close to each other of the two adjacent side panel bodies (21), and the two oppositely arranged connecting wing ears (211) have at least one group of mutually matching clamping structures (212) so that the two adjacent side panel bodies (21) can be detachably connected.

2. The battery module enclosure structure according to claim 1, characterized in that: Each group of relatively arranged connecting wing ears (211) comprises a first wing ear (2111) and a second wing ear (2112); the snap-fit ​​structure (212) of the first wing ear (2111) is a snap-fit ​​notch (2121) or a snap-fit ​​hole (2122); the snap-fit ​​structure (212) of the second wing ear (2112) is a bent protrusion (2123); the bent protrusion (2123) can be bent on the second wing ear (2112), and the bent protrusion (2123) can pass through the snap-fit ​​notch (2121) or the snap-fit ​​hole (2122) and abut against the first wing ear (2111).

3. The battery module enclosure structure according to claim 2, characterized in that: The snap-fit ​​structure (212) of the first wing ear (2111) is the snap-fit ​​hole (2122), and the snap-fit ​​hole (2122) penetrates the first wing ear (2111) along the thickness direction of the first wing ear (2111). In the length direction of the side plate body (21), the length of the second wing ear (2112) is smaller than the length of the first wing ear (2111), and the bent protrusion (2123) is arranged on the periphery of the second wing ear (2112) corresponding to the snap-fit ​​hole (2122).

4. The battery module enclosure structure according to claim 2, characterized in that: The snap-fit ​​structure (212) of the first wing ear (2111) is the snap-fit ​​notch (2121) arranged on the periphery of the first wing ear (2111), and the bent protrusion (2123) is arranged on the periphery of the second wing ear (2112) corresponding to the snap-fit ​​notch (2121).

5. The battery module enclosure structure according to claim 4, characterized in that: The bending protrusion (2123) includes a connecting section (2124) and an abutting section (2125) connected in sequence, and one end of the connecting section (2124) away from the abutting section (2125) is connected to the second wing ear (2112), at least a portion of the connecting section (2124) can be bent and pass through the snap-fit ​​notch (2121), and at least a portion of the abutting section (2125) abuts against the peripheral edge of the snap-fit ​​notch (2121) corresponding to the first wing ear (2111) away from the second wing ear (2112).

6. The battery module enclosure structure according to any one of claims 2 to 5, characterized in that: In two adjacent side plate bodies (21), One side of one of the side plate bodies (21) is provided with only the first wing ear (2111), and one side of the other side plate body (21) is provided with only the second wing ear (2112); or Both of the two side panel bodies (21) have the first wing ear (2111) and the second wing ear (2112), and the first wing ear (2111) of one of the side panel bodies (21) cooperates with the second wing ear (2112) of the other side panel body (21).

7. The battery module enclosure structure according to any one of claims 1 to 5, characterized in that: The thickness direction of the connecting wing ear (211) and the thickness direction of the side plate body (21) are perpendicular to each other.

8. The battery module enclosure structure according to any one of claims 1 to 5, characterized in that: The battery module enclosure structure also includes a plurality of fixing members, each group of the relatively arranged connecting wing ears (211) corresponds to at least one of the fixing members and is provided with a corresponding fixing hole (2113), and at least a portion of the fixing member sequentially passes through the fixing holes (2113) of the two relatively arranged connecting wing ears (211).

9. The battery module enclosure structure according to claim 8, characterized in that: The battery module enclosure structure further comprises a plurality of reinforcing blocks (40), each group of the relatively arranged connecting wing ears (211) corresponds to at least one of the reinforcing blocks (40), and the reinforcing blocks (40) are arranged on a side of one of the connecting wing ears (211) away from another connecting wing ear (211) and around the periphery of the fixing hole (2113).

10. A battery module, characterized in that: It comprises a plurality of battery cells and a battery module enclosure structure as claimed in any one of claims 1 to 9, wherein the plurality of battery cells (30) are arranged in the accommodating cavity.

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