Battery module

Abstract

The utility model provides a battery module which comprises a support and an FPC assembly, the support is provided with a limiting part and a fixing part which are arranged in a spaced mode in the first direction, the limiting part forms a limiting groove, the FPC assembly comprises a reinforcing plate, and the first end of the reinforcing plate extends into the limiting groove in the first direction. The second end of the reinforcing plate is provided with a matching part which is clamped and matched with the fixing part, and at least one of the fixing part and the matching part can generate elastic deformation so as to lock the reinforcing plate along the height direction of the bracket. According to the battery module provided by the utility model, a structure for locking and fixing through elastic deformation between the fixing part and the matching part is utilized, so that the reinforcing plate and one end of the bracket are limited through the limiting groove, and the other end is clamped and locked, the whole structure is simple, mounting and fixing can be realized without tools, and the mounting efficiency is improved; therefore, the problem that the FPC assembly in the prior art is inconvenient to install is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery-related structural technology, and more specifically, to a battery module. Background Technology

[0002] With the development of battery technology, especially in fields such as power tools and electric vehicles, people have higher and higher requirements for battery cost and integration. As a result, battery FPC components that integrate voltage and temperature acquisition are widely used.

[0003] FPC (Flexible Printed Circuit) modules consist of connectors (for transmitting collected information to the battery management system) and reinforcing plates. By placing the connectors on the reinforcing plates, the plates provide support and strengthen the connection during connector insertion and removal. The FPC module needs to connect to the end plate of the battery module. Typically, the reinforcing plate and end plate are connected via an adapter block (i.e., a plastic bracket). The adapter block then connects to the end plate of the battery module. However, the conventional method of fixing the reinforcing plate to the adapter block (plastic bracket) is using self-tapping screws. Using self-tapping screws requires tools and torque checks, making the installation process time-consuming and labor-intensive. This results in low installation efficiency for FPC modules and increases labor costs.

[0004] As can be seen from the above, the FPC components in the existing technology have the problem of being inconvenient to install. Utility Model Content

[0005] The main objective of this invention is to provide a battery module to solve the problem of inconvenient installation of existing FPC components.

[0006] To achieve the above objectives, according to one aspect of the present invention, a battery module is provided, the battery module including a bracket having a limiting portion and a fixing portion spaced apart along a first direction, the limiting portion forming a limiting groove; an FPC assembly including a reinforcing plate, the first end of the reinforcing plate extending into the interior of the limiting groove along the first direction, the second end of the reinforcing plate having a mating portion that engages with the fixing portion, at least one of the fixing portion and the mating portion being capable of elastic deformation to lock the reinforcing plate along the height direction of the bracket.

[0007] Furthermore, the bracket also includes a body portion, and the limiting portion includes a first plate segment and a second plate segment that are bent and configured. The first plate segment is connected to the body portion, and the second plate segment is disposed on the side of the first plate segment away from the body portion and spaced apart from the body portion. The first plate segment and the second plate segment form a limiting groove.

[0008] Furthermore, the second plate segment is parallel to the reinforcing plate; and / or the first plate segment is perpendicular to the second plate segment; and / or the first direction is the length direction of the bracket.

[0009] Furthermore, along the first direction, a guide slope is formed on the side of the second plate segment near the fixing part, and the thickness of the guide slope portion gradually decreases along the direction near the fixing part.

[0010] Furthermore, the limiting part includes a first side plate, a connecting plate, a second side plate, and a cover plate. Along the first direction, the connecting plate is provided with one end of the body part of the bracket. The first side plate and the second side plate are parallel and spaced apart along a second direction perpendicular to the first direction. The cover plate covers the first side plate, the connecting plate, and the second side plate to form a limiting groove.

[0011] Furthermore, the limiting parts are arranged in pairs on two side walls of the bracket along a second direction perpendicular to the first direction, and the two first plate segments are arranged parallel to each other along the second direction.

[0012] Furthermore, the main body has a groove structure with an opening facing the second plate segment, at least a portion of the reinforcing plate is located inside the groove structure, the inner wall of the groove structure has a first limiting rib spaced apart along a first direction and a second limiting rib spaced apart along a second direction perpendicular to the first direction, and the bottom surface of the groove structure has a supporting rib for supporting the reinforcing plate.

[0013] Furthermore, the fixing part is a protruding structure, and the mating part is a hole structure. The fixing part includes a multi-lobed structure arranged circumferentially. The multi-lobed structure can be brought together by elastic deformation. The multi-lobed structure is located inside the hole structure and abuts against the inner wall surface of the hole structure; or the protruding end of the multi-lobed structure passes through the hole structure and has an abutting surface that abuts against the reinforcing plate.

[0014] Furthermore, the hole structure is a waist-shaped hole.

[0015] Furthermore, the first end of the reinforcing plate has a first chamfer that gradually increases in thickness in the direction toward the fixing part; and / or the second end of the reinforcing plate has a second chamfer that gradually increases in thickness in the direction toward the limiting part.

[0016] According to the technical solution of this utility model, the battery module includes a bracket and an FPC assembly. The bracket has a limiting part and a fixing part that are spaced apart along a first direction. The limiting part forms a limiting groove. The FPC assembly includes a reinforcing plate. The first end of the reinforcing plate extends into the interior of the limiting groove along the first direction. The second end of the reinforcing plate has a mating part that engages with the fixing part. At least one of the fixing part and the mating part can undergo elastic deformation to lock the reinforcing plate along the height direction of the bracket.

[0017] As can be seen from the above, the battery module of this application utilizes the elastic deformation between the fixing part and the mating part to lock and fix it, so that the reinforcing plate and the bracket are locked and fixed at one end by limiting the other end through the limiting groove. The overall structure is simple and can be installed and fixed without the aid of tools, which improves the installation efficiency and helps to save labor costs.

[0018] This application adopts a structure in which the reinforcing plate and the bracket are limited and installed at one end by a limiting groove, and the other end is locked and fixed in the height direction by the elastic deformation between the fixing part and the mating part, so as to achieve multi-directional limiting and fixing, improve the installation strength, and facilitate disassembly and assembly.

[0019] During the installation of the reinforcing plate and bracket of the battery module in this application, the reinforcing plate slides into the interior of the limiting groove at the first end, and is locked at the second end through the fixing part and the mating part. The whole installation is completed by sliding and snapping, which improves the overall installation efficiency. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 A three-dimensional structural diagram of the reinforcing plate and bracket installation of this utility model is shown;

[0022] Figure 2 A schematic diagram of the installation structure with the second end of the reinforcing plate of this utility model open is shown;

[0023] Figure 3 A three-dimensional structural schematic diagram of the bracket of this utility model is shown;

[0024] Figure 4 A top view of the bracket of this utility model is shown;

[0025] Figure 5 A side view of the reinforcing plate of this utility model is shown;

[0026] Figure 6 Another three-dimensional structural diagram of the installation of the reinforcing plate and bracket of this utility model is shown.

[0027] The above figures include the following reference numerals:

[0028] 10. Bracket; 101. Groove structure; 110. Main body; 120. Limiting part; 1201. Limiting groove; 121. First plate segment; 122. Second plate segment; 123. First side plate; 124. Connecting plate; 125. Second side plate; 126. Cover plate; 1221. Guide slope; 130. Fixing part; 140. First limiting rib; 150. Second limiting rib; 160. Support rib; 170. Fixing end; 20. Reinforcing plate; 210. Mating part; 220. First chamfer; 230. Second chamfer. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] To address the inconvenience of installing existing FPC components, this embodiment provides a battery module.

[0033] The FPC component includes an FPC, connectors (for transmitting collected information to the battery management system), and a reinforcing plate. The FPC and connectors are electrically connected. By placing the FPC and connectors on the reinforcing plate, the reinforcing plate can provide support and strengthen the connection during the insertion and removal of the connectors.

[0034] like Figures 1 to 6 As shown, the battery module includes a bracket 10 (i.e., the adapter block in the background art) and an FPC assembly. The bracket 10 has a limiting part 120 and a fixing part 130 spaced apart along a first direction. The limiting part 120 forms a limiting groove 1201. The FPC assembly includes a reinforcing plate 20. The first end of the reinforcing plate 20 extends into the interior of the limiting groove 1201 along the first direction. The second end of the reinforcing plate 20 has a mating part 210 that engages with the fixing part 130. At least one of the fixing part 130 and the mating part 210 can undergo elastic deformation to lock the reinforcing plate 20 along the height direction of the bracket 10.

[0035] In this embodiment, the battery module is installed and positioned by setting the bracket 10, thereby enabling the FPC component to be installed and fixed to the end plate of the battery module by the bracket 10. The installation and fixing structure between the bracket 10 and the end plate of the battery module can be fixed by fasteners or snap-fit.

[0036] For example, the bracket 10 has a fixed end 170, and the bracket 10 is fixed to the end plate of the battery module by the fixed end 170. The bracket 10 is preferably made of plastic material.

[0037] Specifically, the battery module of this application utilizes the elastic deformation between the fixing part 130 and the mating part 210 to lock and fix it, so that the reinforcing plate 20 and the bracket 10 are locked and fixed at one end by limiting the other end through the limiting groove 1201. The overall structure is simple and can be installed without the aid of tools compared with the prior art, which is conducive to improving installation efficiency and saving labor costs.

[0038] Furthermore, the first direction is the length direction of the support 10, specifically... Figure 1 The X direction is shown; the second direction is the width direction of the bracket 10, specifically... Figure 1 The Y direction is shown; the third direction is the height direction of the bracket 10, specifically... Figure 1 The Z direction is shown.

[0039] In this embodiment, the reinforcing plate 20 is an epoxy board. During the installation of the reinforcing plate 20 and the bracket 10, the first end of the reinforcing plate 20 slides into the interior of the limiting groove 1201 to complete the installation and fixation of the first end of the reinforcing plate 20. The second end of the reinforcing plate 20 is fixedly installed by the mutual locking of the fixing part 130 and the mating part 210. The whole installation is completed by sliding and locking, which improves the overall installation efficiency.

[0040] like Figures 1 to 4 As shown, the bracket 10 also includes a body part 110, and a limiting part 120 includes a first plate segment 121 and a second plate segment 122 that are bent. The first plate segment 121 is connected to the body part 110, and the second plate segment 122 is disposed on the side of the first plate segment 121 away from the body part 110 and spaced apart from the body part 110. The first plate segment 121 and the second plate segment 122 form a limiting groove 1201, and the first end of the reinforcing plate 20 is installed and fixed through the limiting groove 1201 formed by the limiting part 120.

[0041] The fixed end 170 is located on the side of the main body 110 away from the reinforcing plate 20, and the main body 110 has the function of supporting the reinforcing plate 20. The second plate segment 122 of the main body 110 and the limiting part 120 realizes the positioning and installation of the first end of the reinforcing plate 20 in the height direction.

[0042] In this embodiment, the first plate segment 121 and the second plate segment 122, which are bent, form a bent limiting groove 1201, and the first end of the reinforcing plate 20 extends into the interior of the limiting groove 1201 for limiting installation.

[0043] In this embodiment, the first plate segment 121 and the second plate segment 122 are integrally formed.

[0044] In this embodiment, the second plate segment 122 is parallel to the reinforcing plate 20 to achieve surface-to-surface contact and limit the position, which helps to improve the stability of the reinforcing plate 20 installation; the first plate segment 121 and the second plate segment 122 are arranged perpendicularly, so that the first plate segment 121 limits the installation of the reinforcing plate 20 along the width direction of the bracket 10, and the second plate segment 122 limits the installation of the reinforcing plate 20 along the height direction of the bracket 10.

[0045] Specifically, this application adopts a method where the first end of the reinforcing plate 20 is limited and installed by the first plate segment 121 and the second plate segment 122 of the limiting part 120, and the second end of the reinforcing plate 20 is locked and fixed in the height direction by the elastic deformation structure between the fixing part 130 and the mating part 210, thereby achieving multi-directional limiting and fixing, improving the installation strength, and facilitating disassembly and assembly.

[0046] In this embodiment, to facilitate the installation of the reinforcing plate 20 and avoid interference between the reinforcing plate 20 and the bracket 10, which would prevent installation, as follows: Figure 1 As shown, along the first direction, a guide slope 1221 is formed on the side of the second plate segment 122 near the fixing part 130, and the thickness of the guide slope 1221 gradually decreases along the direction near the fixing part 130.

[0047] By setting the guide slope 1221, the first end of the reinforcing plate 20 can move along the guide slope 1221 toward the inside of the limiting groove 1201 when the first end of the reinforcing plate 20 is installed. This facilitates the installation of the reinforcing plate 20 and also improves the installation accuracy, thereby improving the installation efficiency between the reinforcing plate 20 and the bracket 10. The setting of the guide slope 1221 provides a clearance for the installation of the reinforcing plate 20, thereby avoiding interference between the reinforcing plate 20 and the bracket 10 during installation.

[0048] In this embodiment, to further improve the convenience of disassembly and assembly between the reinforcing plate 20 and the bracket 10, such as... Figure 5 As shown, the first end and the second end of the reinforcing plate 20 are respectively provided with a first chamfer 220 and a second chamfer 230. The portion of the reinforcing plate 20 forming the first chamfer 220 gradually increases in thickness along the direction toward the fixing part 130, and the portion of the reinforcing plate 20 forming the second chamfer 230 gradually increases in thickness along the direction toward the limiting part 120.

[0049] Specifically, such as Figure 5 As shown, the reinforcing plate 20 has a first chamfer 220 at its first end. During installation, the first chamfer 220 creates a clearance, preventing interference between the reinforcing plate 20 and the bracket 10 during installation, thus avoiding the inability to insert into the limiting groove 1201. The structure of the first chamfer 220 is adaptively designed according to the thickness of the reinforcing plate 20.

[0050] Specifically, such as Figure 5 As shown, the reinforcing plate 20 has a second chamfer 230 at its second end. During installation, the second chamfer 230 creates a clearance, preventing interference between the bracket 10 and the reinforcing plate 20 during installation. The structure of the second chamfer 230 is adapted to the thickness of the reinforcing plate 20.

[0051] It is understandable that the reinforcing plate 20 may only have a first chamfer 220 or only have a second chamfer 230.

[0052] In this embodiment, the following implementation is provided according to the different structures of the limiting part 120.

[0053] like Figures 1 to 4 In the specific embodiment shown, the limiting part 120 is arranged in pairs on two side walls of the bracket 10 along a second direction perpendicular to the first direction, and the two first plate segments 121 are arranged parallel to each other along the second direction.

[0054] Two limiting parts 120 are provided on the two side walls in the width direction of the bracket 10, thereby enabling the first plate segment 121 to limit the reinforcing plate 20 in the width direction. The structure of the two limiting parts 120 in pairs is conducive to limiting the reinforcing plate 20 in the structure and improving the stability of the installation between the reinforcing plate 20 and the bracket 10.

[0055] In this embodiment, the two first plate segments 121 can be symmetrically arranged, or they can be partially or completely misaligned along the first direction.

[0056] like Figure 6 In the specific embodiment shown, only one limiting part 120 is provided. The limiting part includes a first side plate 123, a connecting plate 124, a second side plate 125, and a cover plate 126. One end of the main body part 110 is provided along the connecting plate 124 in the first direction. The first side plate 123 and the second side plate 125 are parallel and spaced apart along a second direction perpendicular to the first direction. The cover plate 126 covers the first side plate 123, the connecting plate 124, and the second side plate 125 to form a limiting groove 1201.

[0057] The first side plate 123, the connecting plate 124, the second side plate 125 and the cover plate 126 are integrally formed. The connecting plate 124 is used for limiting and reinforcing the first direction 20, the first side plate 123 and the second side plate 125 are used for limiting and reinforcing the second direction 20, and the cover plate 126 is used for limiting and reinforcing the second direction 20 along the height direction of the bracket 10.

[0058] like Figures 1 to 4As shown, in this embodiment, the main body 110 has a groove structure 101 with an opening facing the second plate segment 122. At least a portion of the reinforcing plate 20 is located inside the groove structure 101. The second plate segment 122 and the groove structure 101 limit the reinforcing plate 20 along the height direction of the bracket 10. At the same time, the groove structure 101 also has the function of limiting the reinforcing plate 20 along the first direction and the second direction, which is beneficial to improving the stability of the installation between the reinforcing plate 20 and the bracket 10.

[0059] In this embodiment, the inner wall surface of the groove structure 101 has first limiting ribs 140 spaced apart along the first direction. The first limiting ribs 140 are used to abut against the limiting reinforcement plate 20 to complete the limiting in the first direction after the reinforcement plate 20 is installed.

[0060] In this embodiment, a second limiting rib 150 is provided at intervals along a second direction perpendicular to the first direction. The second limiting rib 150 is used to abut against the limiting reinforcement plate 20 to complete the limiting in the second direction after the reinforcement plate 20 is installed.

[0061] In this embodiment, the bottom surface of the groove structure 101 has support ribs 160 for supporting the reinforcing plate 20. The support ribs 160 support the reinforcing plate 20, and the support ribs 160 cooperate with the second plate segment 122 to clamp and limit the reinforcing plate 20, thereby limiting the reinforcing plate 20 along the height direction of the bracket 10. The support ribs 160 adopt a structure of multiple support ribs 160 arranged in a cross pattern to improve the support strength. Specifically, the reinforcing plate 20 is supported by support ribs 160 arranged perpendicularly to the first direction and the second direction.

[0062] like Figures 1 to 4 As shown, the fixing part 130 is a protruding structure, and the mating part 210 is a hole structure.

[0063] Specifically, the fixing part 130 includes a multi-lobed structure arranged circumferentially. The multi-lobed structure can come together with each other through elastic deformation. That is, the multi-lobed structure can undergo elastic deformation under the action of external force, thereby realizing the coming together with each other. When the external force is removed, the multi-lobed structure has a tendency to move away from the coming together with the action of restoring force.

[0064] The multi-lobed structure is formed as a mushroom head snap-fit ​​structure. Specifically, the multi-lobed structure can be two-lobed, three-lobed, four-lobed, etc.

[0065] In this embodiment, the locking structure of the fixing part 130 and the mating part 210 may be such that the multi-lobed structure is at least partially disposed inside the hole structure and abuts against the inner wall surface of the hole structure.

[0066] The outer peripheral surface of the multi-lobed structure abuts against the inner wall surface of the hole structure, thereby achieving the abutment and fixation between the multi-lobed structure and the reinforcing plate 20, and completing the locking and installation of the reinforcing plate 20.

[0067] In this embodiment, the locking structure of the fixing part 130 and the mating part 210 can also be that the protruding end of the multi-lobed structure passes through the hole structure, and the protruding end has an abutting surface that abuts against the reinforcing plate 20.

[0068] In this process, after the protruding end of the multi-lobed structure passes through the hole structure, under the action of the restoring force, the protruding end of the multi-lobed structure moves away from each other and converges. At this time, the abutting surface abuts against the top surface of the reinforcing plate 20, thereby locking the reinforcing plate 20 with the fixing part 130.

[0069] In this embodiment, the hole structure is a waist-shaped hole.

[0070] The installation process of the reinforcing plate 20 and the bracket 10 is as follows: After tilting the reinforcing plate 20, the first end extends along the guide slope 1221 into the interior of the limiting groove 1201, and part of the reinforcing plate 20 enters the interior of the groove structure 101. The limiting part 120 completes the limiting of the first end of the reinforcing plate 20. The second end of the reinforcing plate 20 is pressed towards the groove structure 101, and the fixing part 130 and the mating part 210 achieve snap-fit ​​fixation, thereby completing the locking and fixing of the second end of the reinforcing plate 20. When disassembly is required, the operation is reversed. First, the fixing part 130 is brought together by external force, then the mating part 210 of the second end of the reinforcing plate 20 is separated from the fixing part 130, and then the reinforcing plate 20 is tilted and pulled out.

[0071] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0072] The battery module of this application utilizes the elastic deformation between the fixing part 130 and the mating part 210 to lock and fix it, so that the reinforcing plate 20 and the bracket 10 are locked and fixed at one end by limiting the other end through the limiting groove 1201. The overall structure is simple and can be installed and fixed without the aid of tools, which improves the installation efficiency and helps to save labor costs.

[0073] This application adopts a structure in which the reinforcing plate 20 and the bracket 10 are limited and installed at one end by the limiting groove 1201, and the other end is locked and fixed in the height direction by the elastic deformation between the fixing part 130 and the mating part 210, so as to realize multi-directional limiting and fixing, improve the installation strength, and facilitate disassembly and assembly.

[0074] During the installation process between the reinforcing plate 20 and the bracket 10 of the battery module in this application, the reinforcing plate 20 slides into the interior of the limiting groove 1201 at the first end, and is locked at the second end by the fixing part 130 and the mating part 210. The installation is completed by sliding and locking, which improves the overall installation efficiency.

[0075] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0076] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0077] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery module, characterized in that, include: The bracket (10) has a limiting part (120) and a fixing part (130) spaced apart along a first direction, wherein the limiting part (120) forms a limiting groove (1201); The FPC assembly includes a reinforcing plate (20) with a first end extending into the interior of the limiting groove (1201) along the first direction. The second end of the reinforcing plate (20) has a mating part (210) that engages with the fixing part (130). At least one of the fixing part (130) and the mating part (210) can undergo elastic deformation to lock the reinforcing plate (20) along the height direction of the bracket (10).

2. The battery module according to claim 1, characterized in that, The bracket (10) further includes a body part (110), and the limiting part (120) includes a first plate segment (121) and a second plate segment (122) that are bent. The first plate segment (121) is connected to the body part (110), and the second plate segment (122) is disposed on the side of the first plate segment (121) away from the body part (110) and spaced apart from the body part (110). The first plate segment (121) and the second plate segment (122) form the limiting groove (1201).

3. The battery module according to claim 2, characterized in that, The second plate segment (122) is parallel to the reinforcing plate (20); and / or The first plate segment (121) is perpendicular to the second plate segment (122); and / or The first direction is the length direction of the bracket (10).

4. The battery module according to claim 2, characterized in that, Along the first direction, a guide slope (1221) is formed on the side of the second plate segment (122) near the fixing part (130), and the thickness of the guide slope (1221) gradually decreases along the direction near the fixing part (130).

5. The battery module according to claim 1, characterized in that, The limiting part (120) includes a first side plate (123), a connecting plate (124), a second side plate (125), and a cover plate (126). Along the first direction, the connecting plate (124) is disposed at one end of the body part (110) of the bracket (10). The first side plate (123) and the second side plate (125) are parallel and spaced apart along a second direction perpendicular to the first direction. The cover plate (126) covers the first side plate (123), the connecting plate (124), and the second side plate (125) to form the limiting groove (1201).

6. The battery module according to claim 2, characterized in that, The limiting part (120) is arranged in pairs on two side walls of the bracket (10) along a second direction perpendicular to the first direction, and the two first plate segments (121) are arranged in parallel.

7. The battery module according to claim 2, characterized in that, The main body (110) has a groove structure (101) with an opening facing the second plate segment (122). At least a portion of the reinforcing plate (20) is located inside the groove structure (101). The inner wall surface of the groove structure (101) has a first limiting rib (140) spaced apart along the first direction and a second limiting rib (150) spaced apart along a second direction perpendicular to the first direction. The bottom surface of the groove structure (101) has a supporting rib (160) supporting the reinforcing plate (20).

8. The battery module according to any one of claims 1 to 7, characterized in that, The fixing part (130) is a protruding structure, the fitting part (210) is a hole structure, and the fixing part (130) includes a multi-lobed structure arranged circumferentially, which can be brought together by elastic deformation. The multi-lobed structure is at least partially disposed inside the hole structure and abuts against the inner wall surface of the hole structure; or The protruding end of the multi-lobed structure passes through the hole structure, and the protruding end has an abutting surface that abuts against the reinforcing plate (20).

9. The battery module according to claim 8, characterized in that, The hole structure is a waist-shaped hole.

10. The battery module according to any one of claims 1 to 7, characterized in that, The first end of the reinforcing plate (20) has a first chamfer (220) formed by a gradual increase in thickness in the direction toward the fixing part (130); and / or The second end of the reinforcing plate (20) has a second chamfer (230) formed by a gradual increase in thickness in the direction toward the limiting portion (120).

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