A battery module structure

Abstract

The application relates to the technical field of battery modules, and discloses a battery module structure which comprises a battery module connected with an upper cover assembly and a lower cover assembly through a support assembly; the support assembly comprises two first supports, battery modules matched with the first supports, and the first supports are connected with the upper cover assembly and the lower cover assembly; the support assembly further comprises two second supports, battery modules matched with the second supports, and a combined support formed by the first supports and the second supports is connected with the upper cover assembly and the lower cover assembly. Different battery modules are assembled through the first supports and the second supports, the first supports are connected with the upper cover assembly and the lower cover assembly, the sizes of the upper cover assembly and the lower cover assembly used in the assembly structures of different battery modules are the same, only one kind of upper cover assembly and lower cover assembly can be matched with the assembly structures of various battery modules, and the cost of manufacturing the battery module structure is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery module, more particularly, the present application relates to a battery module structure. BACKGROUND

[0002] The battery module is a unit assembled by a plurality of battery cells, the model of the battery cells in the battery module is various, the size of the battery module formed by the battery cells with different models is different, different upper covers, lower covers and housings need to be made for different battery modules, and different molds or equipment need to be used for forming different covers, lower covers and housings, which undoubtedly increases the cost investment.

[0003] Therefore, in order to save cost, it is necessary to provide a battery module structure to at least partially solve the problems in the prior art. SUMMARY

[0004] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the specific embodiment section. The summary section of the present application does not mean to attempt to limit the key features and necessary technical features of the claimed technical solution, and does not mean to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, the present application provides a battery module structure, comprising: a battery module connected with an upper cover assembly and a lower cover assembly through a support assembly;

[0006] The support assembly comprises: two first supports, a battery module matched with the first support, and the upper cover assembly and the lower cover assembly connected through the first support.

[0007] The support assembly further comprises: two second supports, a battery module matched with the second support, and the upper cover assembly and the lower cover assembly connected through the combined support formed by the first support and the second support.

[0008] Preferably, one side of the first support is provided with a first mounting slot, and a first buckle is arranged in the first mounting slot, the first buckle being used for clamping the battery module matched with the first support.

[0009] Preferably, one side of the second support is provided with a second mounting slot, and a second buckle is arranged in the second mounting slot, the second buckle being used for clamping the battery module matched with the second support; the other side of the second support is provided with a mounting frame capable of being inserted into the first mounting slot.

[0010] Preferably, the first support and the second support satisfy a design condition that a height of the battery module matched with the first support and connected with the first support is a first height, and a height of the battery module matched with the second support and connected with the second support is a second height, and the first height and the second height are the same.

[0011] Preferably, the shell is sleeved outside the connected support assembly and the battery module.

[0012] Preferably, an end of the shell and an outer surface of the first support form a mounting area for mounting the upper cover assembly or the lower cover assembly, a periphery of the mounting area forms a waterproof groove, and a waterproof layer is arranged in the waterproof groove; the upper cover assembly and the lower cover assembly are each provided with an annular connecting portion capable of being inserted into the waterproof groove, and the annular connecting portion and the waterproof groove are sealed by the waterproof layer.

[0013] Preferably, the waterproof layer comprises a first support layer, an extrusion layer and a second support layer arranged in sequence, a glue bag is arranged in the extrusion layer, and after the first support layer and the second support layer apply pressure to the extrusion layer, the glue bag breaks open, and glue in the glue bag flows to the outside of the extrusion layer.

[0014] Preferably, the extrusion layer is provided with at least one accommodating cavity, and the glue bag is arranged in the accommodating cavity; the top and the bottom of the extrusion layer are each provided with a socket in communication with the accommodating cavity, the outer sidewall of the inner ring and the outer ring of the extrusion layer is each provided with a first groove recessed to one side of the accommodating cavity, a plurality of first through holes are arranged at the first groove, and after the glue bag breaks open, the glue flows into the first groove through the first through holes.

[0015] Preferably, the first support layer and the second support layer are each provided with a support cavity, and an elastic support body is arranged in the support cavity; one side of the first support layer and the second support layer close to the socket is an arc-shaped support body, a puncture portion is arranged at the recessed portion of the arc-shaped support body, a limiting body extending to one side of the accommodating cavity is arranged at the socket, and the puncture portion is capable of being clamped with the limiting body.

[0016] Preferably, the annular connecting portion is provided with a protruding portion at intervals, a sealing plate is arranged at the socket of the extrusion layer corresponding to the protruding portion, the sealing plate is provided with a plurality of second through holes in communication with the accommodating cavity, the glue can flow out through the second through holes after the glue bag breaks open, and a avoiding space corresponding to the protruding portion is arranged on the first support layer or the second support layer corresponding to the protruding portion.

[0017] Compared with the prior art, the present application at least has the following beneficial effects:

[0018] The battery module structure has the advantages that the first support and the second support are used to assemble different battery modules, the upper cover assembly and the lower cover assembly used in the assembling structure of the different battery modules are of the same size, only one kind of upper cover assembly and lower cover assembly can be used to match the assembling structure of various battery modules, and the cost of manufacturing the battery module structure is saved.

[0019] The battery module structure, other advantages, objects and features of the present application will be embodied in part by the following description, and will be understood by those skilled in the art through the study and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, which together with the embodiments of the present application, serve to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0021] Figure 1 is an exploded structural schematic view of the battery module structure of the present application;

[0022] Figure 2 is a structural schematic view of the connection between the first support and the battery module A in the battery module structure of the present application;

[0023] Figure 3 is a structural schematic view of the connection between the first support, the second support and the battery module B in the battery module structure of the present application;

[0024] Figure 4 is a structural schematic view of the first support in the battery module structure of the present application;

[0025] Figure 5 is a structural schematic view of the second support in the battery module structure of the present application;

[0026] Figure 6 is a structural schematic view of the connection between the first support and the second support in the battery module structure of the present application;

[0027] Figure 7 is an exploded structural schematic view of the upper cover assembly in the battery module structure of the present application;

[0028] Figure 8 is an exploded structural schematic view of the lower cover assembly in the battery module structure of the present application;

[0029] Figure 9 is a structural schematic view of the waterproof groove in the battery module structure of the present application;

[0030] Figure 10A structure diagram of a waterproof layer in a battery module structure according to the present application;

[0031] Figure 11 A cross-sectional structure diagram of the waterproof layer installation in the battery module structure according to the present application;

[0032] Figure 12 A partial exploded structure diagram of the waterproof layer in the battery module structure according to the present application;

[0033] Figure 13 A structure diagram of a protruding portion and the waterproof layer connection in the battery module structure according to the present application;

[0034] Figure 14 A partial structure diagram of an extrusion layer in the battery module structure according to the present application;

[0035] Figure 15 A cross-sectional structure diagram of a first support layer, the extrusion layer and a second support layer in the battery module structure according to the present application. DETAILED DESCRIPTION

[0036] The present application will be further described in detail below with reference to the accompanying drawings and examples, so that those skilled in the art can implement the present application according to the description.

[0037] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0038] As Figures 1-3 shown, the present application provides a battery module structure, comprising: a battery module connected with an upper cover assembly 3 and a lower cover assembly 4 through a support assembly;

[0039] The support assembly comprises: two first supports 1, a battery module matched with the first support 1, connected with the upper cover assembly 3 and the lower cover assembly 4 through the first support 1;

[0040] The support assembly further comprises: two second supports 2, a battery module matched with the second support 2, connected with the upper cover assembly 3 and the lower cover assembly 4 through the combination support formed by the first support 1 and the second support 2.

[0041] In the above technical solution, the battery module matched with the first support 1 is a battery module A 5, for example, using a type of 21700 battery cell, and the battery module matched with the second support 2 is a battery module B 6, for example, using a type of 18650 battery cell;

[0042] Specifically, as Figure 2As shown, the upper end and the lower end of the battery module A5 are connected with two first supports 1 respectively, and the two first supports 1 are connected with the upper cover assembly 3 and the lower cover assembly 4 respectively.

[0043] As shown in the drawings, Figure 3 the upper end and the lower end of the battery module B6 are connected with two second supports 2 respectively, and then the first support 1 is connected on the second support 2, and the two first supports 1 are connected with the upper cover assembly 3 and the lower cover assembly 4 respectively.

[0044] Through the above design, the first support 1 and the second support 2 can be used to realize the assembly of different battery modules. Since the first support 1 is connected with the upper cover assembly 3 and the lower cover assembly 4, the size of the upper cover assembly 3 and the lower cover assembly 4 used in the assembly structure of different battery modules is the same, and only one kind of upper cover assembly 3 and lower cover assembly 4 can match the assembly structure of multiple battery modules, saving the cost of manufacturing battery module structure.

[0045] As shown in the drawings, Figure 4 further, one side of the first support 1 is provided with a first mounting slot 11, and the first mounting slot 11 is provided with a first buckle 12, and the first buckle 12 is used for clamping the battery module matched with the first support 1.

[0046] The size of the first mounting slot 11 matches the battery module A5, and the first buckle 12 is used for clamping the battery module A5 to realize the connection between the first support 1 and the battery module A5.

[0047] As shown in the drawings, Figure 5 further, one side of the second support 2 is provided with a second mounting slot 21, and the second mounting slot 21 is provided with a second buckle 22, and the second buckle 22 is used for clamping the battery module matched with the second support 2; the other side of the second support 2 is provided with a mounting bracket 23 which can be inserted into the first mounting slot 11.

[0048] As shown in the drawings, Figure 6 the first support 1 and the second support 2 are connected through the second screw 13.

[0049] The size of the second mounting slot 21 matches the battery module B6, and the second buckle 22 is used for clamping the battery module B6 to realize the connection between the second support 2 and the battery module B6; the mounting bracket 23 can be inserted into the first mounting slot 11, and is used for limiting the first support 1 and the second support 2, and then the two are fixed through the second screw 13, so as to form a combined support.

[0050] In one embodiment, the design conditions satisfied by the first bracket 1 and the second bracket 2 are as follows: the height of the battery module matched with the first bracket 1 after being connected to the first bracket 1 is the first height, and the height of the battery module matched with the second bracket 2 after being connected to the second bracket 2 is the second height, and the first height and the second height are the same.

[0051] Furthermore, it also includes: a housing 7, which is fitted onto the outside of the connected bracket assembly and battery module.

[0052] Since a housing 7, usually made of aluminum, is needed to be fitted onto the outside of the first bracket 1 and the second bracket 2 after they are connected to the battery module, the first and second heights are set to be the same. This way, the housing 7 used for the two battery modules is the same, and it is not necessary to make different sizes of housing 7 according to the different sizes of the battery modules, which can further save costs.

[0053] like Figure 9 As shown, in one embodiment, an installation area for mounting the upper cover assembly 3 or the lower cover assembly 4 is formed between the end of the outer shell 7 and the outer surface of the first bracket 1. A waterproof groove 8 is formed around the installation area, and a waterproof layer 9 is provided in the waterproof groove 8. Both the upper cover assembly 3 and the lower cover assembly 4 are provided with annular connecting parts 14 that can be inserted into the waterproof groove 8. The annular connecting parts 14 and the waterproof groove 8 are sealed by the waterproof layer 9.

[0054] The outer shell 7 is fitted onto the outside of the bracket assembly, thus forming an installation area between the first bracket 1 and the outer shell 7. This allows a portion of the upper cover assembly 3 and the lower cover assembly 4 to be inserted into the installation area, and the annular connecting part 14 to be inserted into the waterproof groove 8. Both can be sealed by the waterproof layer 9. The waterproof layer 9 can be made of waterproof adhesive. Before installing the upper cover assembly 3 or the lower cover assembly 4, waterproof adhesive is filled into the waterproof groove 8, and then the upper cover assembly 3 or the lower cover assembly 4 is installed, so that the annular connecting part 14 can be inserted into the waterproof groove 8 filled with adhesive, thereby achieving a sealed waterproof effect.

[0055] Furthermore, such as Figure 1 As shown, the upper cover assembly 3 and the lower cover assembly 4 are connected to the outer casing 7 by the first screw 10.

[0056] The annular connecting part 14 of the upper cover assembly 3 and the lower cover assembly 4 is connected to the first bracket 1 through the waterproof layer 9, and the upper cover assembly 3 and the lower cover assembly 4 are connected to the outer shell 7 through the first screw 10 to ensure the stability of the connection.

[0057] like Figure 7 As shown, the upper cover assembly 3 further includes: an upper cover body 31, on which a handle 33 is provided via a pivot 32, and the upper cover body 31 is connected to the outer shell 7 via a first screw 10.

[0058] A handle 33 is arranged on the upper cover body 31, so that the battery module is convenient to move and use.

[0059] As shown in Figure 8 Further, the lower cover assembly 4 comprises a lower cover body 41, on which a connector A 42 and a connector B 43 are arranged, and the lower cover body 41 is connected with the shell 7 through the first screw 10.

[0060] The connector A 42 and the connector B 43 are used to connect with the main body which needs the battery module, so as to provide power for the corresponding main body.

[0061] As shown in Figures 10-12 In an embodiment, the waterproof layer 9 comprises a first support layer 91, an extrusion layer 92 and a second support layer 93 arranged in sequence, and the extrusion layer 92 is provided with a glue bag 94, and when the first support layer 91 and the second support layer 93 apply pressure to the extrusion layer 92, the glue bag 94 is broken, and the glue in the glue bag 94 flows to the outside of the extrusion layer 92.

[0062] In this embodiment, another implementation of the waterproof layer 9 is provided; considering that if the waterproof glue in the waterproof groove 8 is not filled uniformly or the filling amount is insufficient, the waterproof effect of the waterproof layer 9 will be affected, thereby affecting the use stability of the battery module structure; since the sizes of the shell 7, the upper cover assembly 3 and the lower cover assembly 4 are consistent, different support assemblies need to be used when different battery modules are used, that is, the first support 1 or the combination of the first support 1 and the second support 2 is used, so the size error of the first support 1 and the second support 2 during manufacturing and installation is also considered, which may cause the distance between the annular connecting portion 14 and the surface of the first support 1 to have an error during installation of the upper cover assembly 3 or the lower cover assembly 4, for example, when the distance is too large, if the filling amount of the glue in the waterproof groove 8 is not enough, there is a gap between the annular connecting portion 14 and the first support 1, which makes the battery module not firm, and when the distance is too small, after the annular connecting portion 14 contacts the first support 1, there is a gap between the upper cover assembly 3 or the lower cover assembly 4 and the end of the shell 7, which affects the firmness and sealing performance of the installation.

[0063] Based on the above problems, in the embodiment, the first support layer 91, the extrusion layer 92 and the second support layer 93 with certain elastic deformation ability are arranged, and the size of the annular connecting part 14 is smaller than the depth of the waterproof groove 8; wherein the structures of the first support layer 91 and the second support layer 93 can be the same, the first support layer 91, the extrusion layer 92 and the second support layer 93 are all annular designs corresponding to the waterproof groove 8, during installation, the waterproof layer 9 is first placed in the waterproof groove 8, then the upper cover assembly 3 or the lower cover assembly 4 is installed, so that the annular connecting part 14 is in contact with the first support layer 91, the upper cover assembly 3 or the lower cover assembly 4 is pressed, or the first screw 10 is directly connected, so that the annular connecting part 14 extrudes the entire waterproof layer 9 to deform, and then extrudes the glue bag 94, so that it is broken, and the glue in the broken glue bag 94 flows to the outside of the extrusion layer 92, so that the glue fills into the waterproof groove 8, the amount of glue in the glue bag 94 can at least fill the gap between the outer and inner circumferences of the extrusion layer 92 and the waterproof groove 8, and the first support layer 91 and the second support layer 93 can form a sealing effect, thereby achieving a waterproof effect; and although there are manufacturing or installation errors when using the first support 1 and the second support 2, the waterproof layer 9 with elasticity can be adjusted to ensure that the annular connecting part 14 can always be in close contact with the first support 1;

[0064] Through the above design, the waterproof layer 9 can make the annular connecting part 14 in close contact with the first support 1, ensure that the upper cover assembly 3 and the lower cover assembly 4 are firmly installed with the shell 7, and during installation, the glue can automatically fill into the waterproof groove 8, ensuring the stability and uniformity of the glue filling amount, thereby ensuring the waterproof sealing performance of the battery module structure; at the same time, since the first support layer 91, the extrusion layer 92 and the second support layer 93 all have certain elasticity, the battery module in the shell 7 is elastically connected with the upper cover assembly 3 and the lower cover assembly 4, and the waterproof layer 9 can play a certain damping protection role on the battery module.

[0065] As shown in Figures 14-15 In one embodiment, at least one accommodating cavity 921 is arranged in the extrusion layer 92, and the glue bag 94 is arranged in the accommodating cavity 921; the top and bottom of the extrusion layer 92 are provided with a plurality of insertion holes 922 communicating with the accommodating cavity 921, and the outer sidewalls of the inner ring and the outer ring of the extrusion layer 92 are provided with a first groove 923 recessed to one side of the accommodating cavity 921, and a plurality of first through holes 924 are arranged at the first groove 923, and the glue in the glue bag 94 flows into the first groove 923 through the first through holes 924 after the glue bag 94 is broken.

[0066] Since the extrusion layer 92 is made of elastic material, it has a certain deformation capacity. The socket 922 has a certain length. After the socket 922 is opened outward with force, the glue pack 94 can be poured into its interior. The glue pack 94 can be a ring design corresponding to the waterproof groove 8, or it can be a segmented design. Filling the receiving cavity 921 can meet the glue filling amount of the waterproof groove 8. The size of the receiving cavity 921 can be designed according to the glue filling amount required by the waterproof groove 8.

[0067] During installation, the second support layer 93, the extrusion layer 92 and the first support layer 91 are placed in the waterproof groove 8 in sequence, and then the upper cover assembly 3 or the lower cover assembly 4 is installed. After pressure is formed, the glue pack 94 in the extrusion layer 92 is squeezed and broken, and the glue flows out from the first through hole 924.

[0068] The first groove 923 allows the inner and outer rings of the extrusion layer 92 to form a gap with the sidewall of the waterproof groove 8. When the adhesive flows from the first through hole 924 into the first groove 923, it can fill the annular space area formed by the first groove 923 and the sidewall of the waterproof groove 8, achieving a waterproof seal. The first support layer 91 and the second support layer 93 deform laterally under the extrusion action, which can achieve a seal on the waterproof groove 8. That is, the extrusion layer 92 achieves a waterproof seal for the adhesive, and the first support layer 91 and the second support layer 93 achieve a tight-contact waterproof seal, achieving the purpose of triple sealing. Furthermore, the seal of the adhesive is placed between the first support layer 91 and the second support layer 93, which can reduce the contact between the adhesive and the external environment and improve the service life of the waterproof adhesive.

[0069] Furthermore, the inner and outer rings of the extrusion layer 92 are each provided with a second groove 925 recessed toward the side of the first groove 923.

[0070] The design of the second groove 925 can separate the glue pack 94 from the first through hole 924, so that when the glue pack 94 breaks, the coating layer of the glue pack 94 can be prevented from blocking the first through hole 924.

[0071] like Figure 15 As shown, in one embodiment, both the first support layer 91 and the second support layer 93 are provided with support cavities 931, and each support cavity 931 is provided with an elastic support body 932; the side of the first support layer 91 and the second support layer 93 near the insertion port 922 is an arc-shaped support body 933, the recessed portion of the arc-shaped support body 933 is provided with a piercing portion 934, and the insertion port 922 is provided with a limiting body 925 extending towards the receiving cavity 921, and the piercing portion 934 can engage with the limiting body 925.

[0072] Furthermore, the glue package 94 includes a wrapping layer and glue filled within the wrapping layer. When the wrapping layer is squeezed by the puncture portion 934, it can be broken open, allowing the glue to flow out.

[0073] The elastic support 932 provides elastic support to the support cavity 931, and the arc-shaped support 933 increases the movement distance of the puncture part 934. That is, when the puncture part 934 is inserted into the insertion port 922, the arc-shaped support 933 does not deform, and there is a certain gap between its recessed area and the extrusion layer 92. When compressed, the arc-shaped support 933 deforms to one side of the extrusion layer 92, and the recessed area causes the puncture part 934 to continue moving a certain distance to form an entry point into the glue pack 94. One-step compression enhances puncture capability; the puncture part 934 is made of rigid material, and the limiting body 925 can guide the movement of the puncture part 934, allowing the puncture part 934 to be smoothly inserted into the insertion port 922. Furthermore, after full insertion, the puncture part 934 and the limiting body 925 can also engage and limit, ensuring that the puncture part 934 can stably apply continuous compression force to the glue package 94 within the receiving cavity 921, thereby ensuring that the glue package 94 can be broken open and the glue can flow out.

[0074] like Figures 12-14 As shown, in one embodiment, the annular connecting portion 14 is provided with protrusions 15 at intervals, and the insertion port 922 of the extrusion layer 92 corresponding to the protrusions 15 is provided with a sealing plate 926. The sealing plate 926 is provided with a plurality of second through holes 927 communicating with the receiving cavity 921. After the glue pack 94 is broken, it can flow out through the second through holes 927. The first support layer 91 or the second support layer 93 corresponding to the protrusions 15 is provided with a clearance space 16 corresponding to the protrusions 15.

[0075] Unlike the previous embodiments, in this embodiment, the annular connecting part 14 is provided with a protrusion 15. The protrusion 15 can directly squeeze the sealing plate 926 on the extrusion layer 92, which is conducive to the flow of glue. The purpose of this design is that the volume of the receiving cavity 921 is designed to allow a sufficient amount of glue to flow out from the second through hole 927 to the surface of the first support layer 91. The glue covers the first support layer 91, thereby filling the waterproof groove 8 on the side of the first support layer 91 away from the extrusion layer 92 with glue, ensuring waterproof sealing performance. The design of the protrusion 15 is conducive to forming a greater squeezing effect on the glue, so that more glue can flow out to fill the waterproof groove 8.

[0076] In the description of the application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0077] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and implementation listed in the specification and embodiments, and it can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the present application.

Claims

1. A battery module structure, characterized by, The utility model relates to a battery module, which is connected with the upper cover assembly (3) and the lower cover assembly (4) through the support assembly. The support assembly comprises two first supports (1), battery modules matched with the first supports (1), and the first supports (1) are connected with the upper cover assembly (3) and the lower cover assembly (4). The support assembly further comprises two second supports (2), battery modules matched with the second supports (2), and a combined support formed by the first supports (1) and the second supports (2) is connected with the upper cover assembly (3) and the lower cover assembly (4). The utility model further comprises an outer shell (7) sleeved on the outer side of the connected support assembly and battery module. An installation area for installing the upper cover assembly (3) or the lower cover assembly (4) is formed between the end of the outer shell (7) and the outer surface of the first support (1), a waterproof groove (8) is formed around the installation area, a waterproof layer (9) is arranged in the waterproof groove (8), and annular connecting portions (14) capable of being inserted into the waterproof groove (8) are arranged on the upper cover assembly (3) and the lower cover assembly (4), the annular connecting portions (14) and the waterproof groove (8) are sealed by the waterproof layer (9). The waterproof layer (9) comprises a first support layer (91), an extrusion layer (92), and a second support layer (93) arranged in sequence, a glue bag (94) is arranged in the extrusion layer (92), the first support layer (91) and the second support layer (93) apply pressure to the extrusion layer (92), the glue bag (94) is broken, and glue in the glue bag (94) flows to the outside of the extrusion layer (92). The extrusion layer (92) is provided with at least one accommodating cavity (921), and the glue bag (94) is arranged in the accommodating cavity (921); the top and the bottom of the extrusion layer (92) are each provided with a socket (922) in communication with the accommodating cavity (921), the outer side walls of the inner ring and the outer ring of the extrusion layer (92) are each provided with a first groove (923) recessed to one side of the accommodating cavity (921), a plurality of first through holes (924) are arranged at the first groove (923), and the glue in the glue bag (94) flows into the first groove (923) through the first through holes (924) after the glue bag (94) is broken. One side of the first support (1) is provided with a first installation groove (11), the first installation groove (11) is provided with a first buckle (12), and the first buckle (12) is used for clamping the battery module matched with the first support (1).

2. The battery module structure according to claim 1, characterized by One side of the second support (2) is provided with a second installation groove (21), the second installation groove (21) is provided with a second buckle (22), the second buckle (22) is used for clamping the battery module matched with the second support (2), and the other side of the second support (2) is provided with a mounting rack (23) capable of being inserted into the first installation groove (11).

3. The battery module structure according to claim 2, characterized by The design conditions met by the first support (1) and the second support (2) are that the height of the battery module matched with the first support (1) and connected with the first support (1) is a first height, the height of the battery module matched with the second support (2) and connected with the second support (2) is a second height, and the first height is the same as the second height.

4. The battery module structure according to claim 1, characterized by ​ 5. The battery module structure of claim 1, wherein The first support layer (91) and the second support layer (93) are provided with support cavities (931), and the support cavities (931) are provided with elastic support bodies (932); the side of the first support layer (91) and the second support layer (93) close to the insertion port (922) is an arc-shaped support body (933), the concave part of the arc-shaped support body (933) is provided with a piercing part (934), the insertion port (922) is provided with a limiting body (925) extending to the side of the containing cavity (921), and the piercing part (934) can be clamped with the limiting body (925).

6. The battery module structure of claim 1, wherein The annular connecting part (14) is provided with a protruding part (15) at intervals, the insertion port (922) of the extrusion layer (92) corresponding to the protruding part (15) is provided with a sealing plate (926), the sealing plate (926) is provided with a plurality of second through holes (927) in communication with the containing cavity (921), and the glue bag (94) can flow out through the second through holes (927) after being broken; the first support layer (91) or the second support layer (93) corresponding to the protruding part (15) is provided with an avoiding space (16) corresponding to the protruding part (15).

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