Battery module structure

Abstract

The present invention 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 bracket assembly comprises two first brackets and battery modules matched with the first brackets, and is connected with the upper cover assembly and the lower cover assembly through the first brackets; the support assembly further comprises two second supports and battery modules matched with the second supports, and a combined support formed by connecting the first supports and the second supports is connected with the upper cover assembly and the lower cover assembly. Assembling of different battery modules is achieved through the first support and the second support, and due to the fact that the first support is connected with the upper cover assembly and the lower cover assembly in a matched mode, the sizes of the upper cover assembly and the lower cover assembly adopted in the assembling structure of the different battery modules are the same; and only one upper cover assembly and one lower cover assembly are manufactured, so that the assembling structure of various battery modules can be matched, and the cost for manufacturing the battery module structure is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery modules, and more specifically, to a battery module structure. Background Art

[0002] A battery module is a unit assembled from multiple battery cells. There are various types of battery cells in a battery module. The sizes of battery modules formed by different types of battery cells are different. Different upper covers, lower covers and outer shells need to be made for different battery modules. Different covers, lower covers and outer shells need to be formed by different molds or equipment, which will undoubtedly increase the cost investment.

[0003] Therefore, in order to save costs, it is necessary to propose a battery module structure to at least partially solve the problems existing in the prior art. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, the present invention provides a battery module structure, comprising: a battery module connected to an upper cover assembly and a lower cover assembly via a bracket assembly;

[0006] The bracket assembly includes: two first brackets, a battery module matched with the first brackets, and connected with the upper cover assembly and the lower cover assembly through the first brackets;

[0007] The bracket assembly also includes: two second brackets, a battery module matched with the second brackets, and a combined bracket formed by connecting the first bracket and the second bracket to be connected to the upper cover assembly and the lower cover assembly.

[0008] Preferably, a first mounting groove is provided on one side of the first bracket, a first buckle is provided in the first mounting groove, and the first buckle is used for buckling with a battery module matching the first bracket.

[0009] Preferably, a second mounting groove is provided on one side of the second bracket, a second clip is provided in the second mounting groove, and the second clip is used to clip into the battery module matching the second bracket; and a mounting frame that can be inserted into the first mounting groove is provided on the other side of the second bracket.

[0010] Preferably, the first bracket and the second bracket satisfy the following design conditions: the height of the battery module matching the first bracket after being connected to the first bracket is a first height, the height of the battery module matching the second bracket after being connected to the second bracket is a second height, and the first height and the second height are the same.

[0011] Preferably, it further comprises: a shell, which is sleeved on the outer sides of the connected bracket assembly and the battery module.

[0012] Preferably, an installation area for installing an upper cover assembly or a lower cover assembly is formed between the end of the outer shell and the outer surface of the first bracket, a waterproof groove is formed around the installation area, and a waterproof layer is provided in the waterproof groove; the upper cover assembly and the lower cover assembly are both provided with an annular connecting portion that can be 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 includes: a first supporting layer, an extrusion layer and a second supporting layer arranged in sequence, a glue bag is provided in the extrusion layer, and after the first supporting layer and the second supporting layer exert pressure on the extrusion layer, the glue bag breaks and the glue in it flows to the outside of the extrusion layer.

[0014] Preferably, at least one accommodating cavity is provided in the extrusion layer, and the glue bag is arranged in the accommodating cavity; the top and bottom of the extrusion layer are provided with sockets connected to the accommodating cavity, and the outer side walls of the inner ring and the outer ring of the extrusion layer are provided with a first groove recessed toward one side of the accommodating cavity, and the first groove is provided with a plurality of first through holes, and after the glue bag is broken, it flows into the first groove through the first through holes.

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

[0016] Preferably, protrusions are provided at intervals on the annular connecting portion, and a sealing plate is provided on the plug of the extrusion layer corresponding to the protrusions, and a plurality of second through holes connected to the accommodating cavity are provided on the sealing plate, so that the glue bag can flow out from the second through holes after being broken; and an avoidance space corresponding to the protrusion is provided on the first supporting layer or the second supporting layer corresponding to the protrusion.

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

[0018] The battery module structure described in the present invention realizes the assembly of different battery modules through the first bracket and the second bracket. Since the first bracket is used to cooperate 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 upper cover assembly and lower cover assembly are needed to match the assembly structures of various battery modules, thereby saving the cost of manufacturing the battery module structure.

[0019] The battery module structure described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the exploded structure of the battery module structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the connection between the first bracket and the battery module A in the battery module structure of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the connection between the first bracket, the second bracket and the battery module B in the battery module structure of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the first bracket in the battery module structure of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the second bracket in the battery module structure of the present invention;

[0026] Figure 6 A schematic diagram of the structure of the connection between the first bracket and the second bracket in the battery module structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the exploded structure of the upper cover assembly in the battery module structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the exploded structure of the lower cover assembly in the battery module structure of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the waterproof groove in the battery module structure of the present invention;

[0030] Fig.10It is a structural schematic diagram of the waterproof layer in the battery module structure of the present invention;

[0031] Fig.11 It is a schematic cross-sectional structure diagram of the installation of the waterproof layer in the battery module structure of the present invention;

[0032] Fig.12 It is a schematic diagram of a partially exploded structure of a waterproof layer in the battery module structure of the present invention;

[0033] Fig.13 It is a schematic diagram of the structure of the connection between the protruding part and the waterproof layer in the battery module structure of the present invention;

[0034] Fig.14 It is a partial structural schematic diagram of the extrusion layer in the battery module structure of the present invention;

[0035] Fig.15 It is a schematic diagram of the cross-sectional structure of the first supporting layer, the extrusion layer and the second supporting layer in the battery module structure described in the present invention. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0037] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0038] like Figure 1-Figure 3 As shown, the present invention provides a battery module structure, including: a battery module, which is connected to an upper cover assembly 3 and a lower cover assembly 4 through a bracket assembly;

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

[0040] The bracket assembly also includes: two second brackets 2, a battery module matched with the second brackets 2, and a combined bracket formed by connecting the first bracket 1 and the second bracket 2, which is connected to the upper cover assembly 3 and the lower cover assembly 4.

[0041] In the above technical solution, the battery module matched with the first bracket 1 is the battery module A5, for example, a battery cell of model 21700 is used, and the battery module matched with the second bracket 2 is the battery module B6, for example, a battery cell of model 18650 is used;

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

[0043] like Figure 3 As shown, the upper and lower ends of the battery module B6 are respectively connected to two second brackets 2, and then the first bracket 1 is connected to the second bracket 2, and the two first brackets 1 are respectively connected to the upper cover assembly 3 and the lower cover assembly 4.

[0044] Through the above design, the first bracket 1 and the second bracket 2 can be used to realize the assembly of different battery modules. Since the first bracket 1 is used to cooperate with the upper cover assembly 3 and the lower cover assembly 4, the sizes of the upper cover assembly 3 and the lower cover assembly 4 used in the assembly structures of different battery modules are the same. Only one upper cover assembly 3 and lower cover assembly 4 are needed to match the assembly structures of multiple battery modules, thereby saving the cost of manufacturing the battery module structure.

[0045] like Figure 4 As shown, further, a first mounting groove 11 is provided on one side of the first bracket 1 , a first clip 12 is provided in the first mounting groove 11 , and the first clip 12 is used for clipping with a battery module matching the first bracket 1 .

[0046] The size of the first mounting groove 11 matches the battery module A5, and the first buckle 12 is used to snap into the battery module A5 to achieve the connection between the first bracket 1 and the battery module A5.

[0047] like Figure 5 As shown, further, a second mounting groove 21 is provided on one side of the second bracket 2, and a second clip 22 is provided in the second mounting groove 21, and the second clip 22 is used to clip with the battery module matching the second bracket 2; the other side of the second bracket 2 is provided with a mounting frame 23 that can be inserted into the first mounting groove 11.

[0048] like Figure 6 As shown, the first bracket 1 and the second bracket 2 are connected by a second screw 13 .

[0049] The size of the second mounting groove 21 matches the battery module B6, and the second clip 22 is used to snap into the battery module B6 to achieve the connection between the second bracket 2 and the battery module B6; the mounting frame 23 can be inserted into the first mounting groove 11, and is used to limit the first bracket 1 and the second bracket 2, and then the two are fixed by the second screw 13 to form a combined bracket.

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

[0051] Furthermore, it also includes: a shell 7, which is sleeved on the outer side of the connected bracket assembly and battery module.

[0052] After the first bracket 1 and the second bracket 2 are connected to the battery module, an outer shell 7 needs to be sleeved on the outside thereof, usually an aluminum barrel is used. Therefore, the first height and the second height are set to be the same, so that the outer shell 7 used by the two battery modules is also the same, and there is no need to make outer shells 7 of different sizes according to the different sizes of the battery modules, which can further save costs.

[0053] like Fig. 9 As shown, in one embodiment, 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 bracket 1, and a waterproof groove 8 is formed around the installation area, and a waterproof layer 9 is provided in the waterproof groove 8; the upper cover assembly 3 and the lower cover assembly 4 are both provided with an annular connecting portion 14 that can be inserted into the waterproof groove 8, and the annular connecting portion 14 and the waterproof groove 8 are sealed by the waterproof layer 9.

[0054] The outer shell 7 is sleeved on the outside of the bracket assembly, and an installation area is formed between the first bracket 1 and the outer shell 7, so that a part of the upper cover assembly 3 and the lower cover assembly 4 can be inserted into the installation area, and the annular connecting portion 14 can be inserted into the waterproof groove 8, and the two can be sealed by the waterproof layer 9; the waterproof layer 9 can be made of waterproof glue. Before installing the upper cover assembly 3 or the lower cover assembly 4, the waterproof glue 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 portion 14 can be inserted into the waterproof groove 8 filled with glue to achieve sealing and waterproofing.

[0055] Furthermore, if Figure 1 As shown, the upper cover assembly 3 and the lower cover assembly 4 are connected to the housing 7 via first screws 10 .

[0056] The annular connecting portion 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 housing 7 through the first screws 10 to ensure the stability of the connection.

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

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

[0059] like Figure 8 As shown, further, the lower cover assembly 4 includes: a lower cover body 41, on which a connector A42 and a connector B43 are provided, and the lower cover body 41 is connected to the housing 7 through a first screw 10.

[0060] Connector A42 and connector B43 are used to connect to a main body that requires the battery module to provide electrical energy to the corresponding main body.

[0061] like Figure 10-12 As shown, in one embodiment, the waterproof layer 9 includes: a first supporting layer 91, an extrusion layer 92 and a second supporting layer 93 arranged in sequence, a glue bag 94 is provided in the extrusion layer 92, and after the first supporting layer 91 and the second supporting layer 93 exert pressure on the extrusion layer 92, the glue bag 94 breaks and the glue in it flows to the outside of the extrusion layer 92.

[0062] In the present embodiment, another implementation of the waterproof layer 9 is provided; it is considered that if the waterproof glue in the waterproof groove 8 is filled unevenly or the filling amount is insufficient, it will affect the waterproof effect of the waterproof layer 9, thereby affecting the use stability of the battery module structure; since the sizes of the outer shell 7, the upper cover assembly 3 and the lower cover assembly 4 are consistent, different bracket assemblies need to be used when different battery modules are used, that is, the first bracket 1 or the combination of the first bracket 1 and the second bracket 2 is used, so it is also considered that there may be errors in the sizes of the first bracket 1 and the second bracket 2 during production and installation, resulting in errors in the distance between the annular connecting portion 14 and the surface of the first bracket 1 when the upper cover assembly 3 or the lower cover assembly 4 is installed. For example, when the distance is too large, if the glue filling amount in the waterproof groove 8 is insufficient, there is a gap between the annular connecting portion 14 and the first bracket 1, making the battery module not firmly installed. When the distance is too small, after the annular connecting portion 14 contacts the first bracket 1, there is a gap between the upper cover assembly 3 or the lower cover assembly 4 and the end of the outer shell 7, affecting the installation firmness and sealing.

[0063] Based on the above problems, the present embodiment provides a first support layer 91, an extrusion layer 92 and a second support layer 93 with certain elastic deformation capabilities, and the size of the annular connection portion 14 is set to be 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 set to be the same, and 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, and then the upper cover assembly 3 or the lower cover assembly 4 is installed, so that the annular connection portion 14 contacts the first support layer 91, and the upper cover assembly 3 or the lower cover assembly 4 is pressed, or directly connected by the first screw 10, so that The annular connecting portion 14 exerts an extrusion effect on the entire waterproof layer 9, thereby causing deformation, and further extruding the glue bag 94, thereby breaking it. The glue in the broken glue bag 94 overflows to the outside of the extrusion layer 92, so that the glue fills the waterproof groove 8. The amount of glue in the glue bag 94 can at least fill the gap between the outer and inner peripheries of the extrusion layer 92 and the waterproof groove 8, and the first supporting layer 91 and the second supporting layer 93 can form a sealing effect, thereby achieving a waterproof effect; and, although there are manufacturing or installation errors when using the first bracket 1 and the second bracket 2, they can be adjusted through the elastic waterproof layer 9 to ensure that the annular connecting portion 14 can always be in close contact with the first bracket 1;

[0064] Through the above design, the waterproof layer 9 can make the annular connecting part 14 in close contact with the first bracket 1, ensuring that the upper cover assembly 3 and the lower cover assembly 4 are firmly installed with the outer shell 7. During installation, the glue can be automatically filled into the waterproof groove 8 to ensure 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 a certain elasticity, the battery module in the outer shell 7 is elastically connected with respect to the upper cover assembly 3 and the lower cover assembly 4, and the waterproof layer 9 can play a certain vibration reduction and protection role for the battery module.

[0065] like Figure 14-15 As shown, in one embodiment, at least one accommodating cavity 921 is provided 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 socket 922 connected to the accommodating cavity 921, and the outer side walls of the inner ring and the outer ring of the extrusion layer 92 are provided with a first groove 923 recessed toward one side of the accommodating cavity 921, and a plurality of first through holes 924 are provided at the first groove 923. After the glue bag 94 is broken, it flows into the first groove 923 through the first through hole 924.

[0066] Since the extrusion layer 92 is made of elastic material, it has a certain deformation ability. The socket 922 has a certain length. After the socket 922 is opened outward with force, the glue bag 94 can be inserted into the inside. The glue bag 94 can be a ring-shaped design corresponding to the waterproof groove 8, or a segmented design. Filling the accommodating cavity 921 can meet the glue filling amount of the waterproof groove 8. The size of the accommodating 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 bag 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 can form a gap between the inner ring and the outer ring of the extrusion layer 92 and the side wall of the waterproof groove 8. When the glue flows from the first through hole 924 to the first groove 923, it can fill the annular space area formed by the first groove 923 and the side wall of the waterproof groove 8 to achieve a waterproof seal; and the first support layer 91 and the second support layer 93 are laterally deformed under the extrusion effect, which can achieve the sealing of the waterproof groove 8, that is, the extrusion layer 92 achieves a waterproof seal of the glue, and the first support layer 91 and the second support layer 93 achieve a close contact waterproof seal, thereby achieving the purpose of triple sealing, and the glue seal is placed between the first support layer 91 and the second support layer 93, which can reduce the contact between the glue and the external environment and improve the service life of the waterproof glue.

[0069] Furthermore, the inner side walls of the inner ring and the outer ring of the extrusion layer 92 are both provided with a second groove 925 that is recessed toward one side of the first groove 923 .

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

[0071] like Fig.15 As shown, in one embodiment, a support cavity 931 is provided in each of the first support layer 91 and the second support layer 93, and an elastic support body 932 is provided in the support cavity 931; the first support layer 91 and the second support layer 93 are provided with an arc-shaped support body 933 on one side close to the socket 922, and a puncture portion 934 is provided in a recessed portion of the arc-shaped support body 933, and a limiting body 925 extending toward one side of the accommodating cavity 921 is provided at the socket 922, and the puncture portion 934 can be snapped into the limiting body 925.

[0072] Furthermore, the glue bag 94 includes a wrapping layer and glue filled in the wrapping layer. After being squeezed by the puncture portion 934, the wrapping layer can be broken to allow the glue to flow out.

[0073] The elastic support body 932 can form an elastic support for the support cavity 931, and the arc-shaped support body 933 can increase the moving distance of the puncture portion 934, that is, when the puncture portion 934 is inserted into the socket 922, the arc-shaped support body 933 does not deform, and there is a certain gap between the concave part and the extrusion layer 92. When squeezed, the arc-shaped support body 933 deforms toward one side of the extrusion layer 92, and the concave part drives the puncture portion 934 to continue to move a certain distance to form an entry into the glue bag 94. One-step extrusion improves the puncturing ability; the puncturing portion 934 is made of a rigid material, and the provided limiting body 925 can guide the movement of the puncturing portion 934, so that the puncturing portion 934 can be smoothly inserted into the socket 922, and after being fully inserted, the puncturing portion 934 and the limiting body 925 can also be engaged and limited, ensuring that the puncturing portion 934 can be stably in the accommodating cavity 921 to continuously apply an extruding force to the glue bag 94, thereby ensuring that the glue bag 94 can be broken open and the glue can flow out.

[0074] like Figure 12-14 As shown, in one embodiment, protrusions 15 are provided on the annular connecting portion 14 at intervals, and a sealing plate 926 is provided on the insertion port 922 of the extrusion layer 92 corresponding to the protrusion 15, and a plurality of second through holes 927 connected to the accommodating cavity 921 are provided on the sealing plate 926, and the glue bag 94 can flow out from the second through holes 927 after being broken; an avoidance space 16 corresponding to the protrusion 15 is provided on the first supporting layer 91 or the second supporting layer 93 corresponding to the protrusion 15.

[0075] Different from the aforementioned embodiment, in this embodiment, a protrusion 15 is provided on the annular connecting portion 14, and the protrusion 15 can directly exert an extrusion effect on the sealing plate 926 on the extrusion layer 92, which is conducive to the outflow of glue; the purpose of such design is that the volume of the accommodating 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 supporting layer 91, and the glue covers the first supporting layer 91, thereby filling the waterproof groove 8 on the side of the first supporting layer 91 away from the extrusion layer 92 with glue to ensure waterproof sealing performance; the design of the protrusion 15 is conducive to forming a greater extrusion effect on the glue, so that more glue can flow out to fill the waterproof groove 8.

[0076] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the present invention, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A battery module structure, characterized in that: include: A battery module, which is connected to an upper cover assembly (3) and a lower cover assembly (4) via a bracket assembly; The bracket assembly comprises: two first brackets (1), a battery module matched with the first brackets (1), and connected to an upper cover assembly (3) and a lower cover assembly (4) via the first brackets (1); The bracket assembly further comprises: two second brackets (2), a battery module matching the second brackets (2), and a combined bracket formed by connecting the first bracket (1) and the second bracket (2) and connected to the upper cover assembly (3) and the lower cover assembly (4).

2. The battery module structure according to claim 1, characterized in that: A first mounting groove (11) is provided on one side of the first bracket (1), a first buckle (12) is provided in the first mounting groove (11), and the first buckle (12) is used for buckling with a battery module matching the first bracket (1).

3. The battery module structure according to claim 2, characterized in that: A second mounting groove (21) is provided on one side of the second bracket (2), a second buckle (22) is provided in the second mounting groove (21), and the second buckle (22) is used for buckling with a battery module matching the second bracket (2); and a mounting frame (23) capable of being inserted into the first mounting groove (11) is provided on the other side of the second bracket (2).

4. The battery module structure according to claim 1, characterized in that: The design conditions satisfied by the first bracket (1) and the second bracket (2) are: the height of a battery module matching the first bracket (1) after being connected to the first bracket (1) is a first height, the height of a battery module matching the second bracket (2) after being connected to the second bracket (2) is a second height, and the first height and the second height are the same.

5. The battery module structure according to claim 1, characterized in that: Also includes: The outer shell (7) is sleeved on the outer sides of the connected bracket assembly and the battery module.

6. The battery module structure according to claim 5, characterized in that: An installation area for installing an upper cover assembly (3) or a lower cover assembly (4) is formed between the end of the housing (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 an annular connecting portion (14) that can be plugged into the waterproof groove (8), and the annular connecting portion (14) and the waterproof groove (8) are sealed by the waterproof layer (9).

7. The battery module structure according to claim 6, characterized in that: The waterproof layer (9) comprises: a first supporting layer (91), an extrusion layer (92) and a second supporting layer (93) which are arranged in sequence; a glue bag (94) is arranged in the extrusion layer (92); after the first supporting layer (91) and the second supporting layer (93) exert pressure on the extrusion layer (92), the glue bag (94) breaks open, and the glue in the glue bag flows to the outside of the extrusion layer (92).

8. The battery module structure according to claim 7, characterized in that: At least one accommodating cavity (921) is provided 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 both provided with a plug (922) connected to the accommodating cavity (921); the outer side walls of the inner ring and the outer ring of the extrusion layer (92) are both provided with a first groove (923) recessed toward one side of the accommodating cavity (921); the first groove (923) is provided with a plurality of first through holes (924); after the glue bag (94) is broken, it flows from the first through holes (924) into the first groove (923).

9. The battery module structure according to claim 8, characterized in that: A support cavity (931) is provided in both the first support layer (91) and the second support layer (93), and an elastic support body (932) is provided in the support cavity (931); the first support layer (91) and the second support layer (93) are provided with an arc-shaped support body (933) on one side close to the socket (922), and a puncture portion (934) is provided in the recessed part of the arc-shaped support body (933); a limiting body (925) extending toward one side of the accommodating cavity (921) is provided at the socket (922), and the puncture portion (934) can be snap-connected with the limiting body (925).

10. The battery module structure according to claim 8, characterized in that: The annular connecting portion (14) is provided with protrusions (15) at intervals, and a sealing plate (926) is provided on the insertion port (922) of the extrusion layer (92) corresponding to the protrusions (15). The sealing plate (926) is provided with a plurality of second through holes (927) connected to the accommodating cavity (921), and the glue bag (94) can flow out through the second through holes (927) after being broken; and an avoidance space (16) corresponding to the protrusions (15) is provided on the first supporting layer (91) or the second supporting layer (93) corresponding to the protrusions (15).

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