Assembly tool for a battery module

Abstract

The utility model belongs to battery assembly technical field discloses a kind of assembly tool of battery module. Battery module includes battery cell;Assembly tool includes base, pusher and limiting piece. Pusher is movably arranged in base along first direction;Limiting piece is connected to pusher, pusher, limiting piece and base form the positioning area for positioning battery cell. When assembling battery module, battery cell is placed on base, and battery cell is located in the positioning area formed by base, limiting piece and pusher, to position the placement position of battery cell on assembly tool, ensure that battery cell is positioned accurately. Drive pusher to move along first direction, and battery cell is finally assembled with accurate position under the pushing of pusher, reduce assembly difficulty, improve assembly efficiency, improve the production efficiency of subsequent product, which is beneficial to speed up mass production.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly technology, and in particular to an assembly fixture for a battery module. Background Technology

[0002] When assembling battery modules with certain specific structures, such as Figure 1 As shown, the assembly scheme is as follows: S1, attach one side of the heating film structure 1' to two spaced-apart battery cell structures 2'; S2, attach two battery cell structures 2' to the other side of the heating film structure 1'; S3, install the four battery cell structures 2' attached by the heating film structure 1' into the bottom bracket 3'; S4, fix the top bracket to the bottom bracket with fasteners so that the bottom bracket 3' and the top bracket together limit and fix the battery cell structures 2'. The above assembly process is all done manually, and its drawback is:

[0003] 1) When the battery cell structure 2′ is pasted to the heating film structure 1′, the position is easily misaligned, causing rework;

[0004] 2) When the battery cell structure 2' is bonded by the heating film structure 1' and placed into the bottom bracket 3', it is inconvenient to take it out and difficult to operate when it is installed in the bottom bracket 3'. For example, when there is a soft connection between the battery cell structure 2' and the heating film structure 1', it is difficult to take out the battery cell structure 2' connected by the heating film structure 1' at the same time. Utility Model Content

[0005] The purpose of this utility model is to provide an assembly fixture for battery modules, which can improve the positioning accuracy during cell assembly, reduce assembly difficulty, improve assembly efficiency, and thus improve the production efficiency of subsequent products, which is conducive to accelerating mass production.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A battery module assembly fixture is provided, the battery module including battery cells; the assembly fixture includes:

[0008] Base;

[0009] A pusher is movably disposed on the base along a first direction;

[0010] A limiting member is connected to the pushing member, and the pushing member, the limiting member, and the base form a positioning area for positioning the battery cell.

[0011] As an optional solution for the assembly fixture of the battery module provided by this utility model, the battery module includes at least two battery cells, and the limiting member is located between the two battery cells arranged along a second direction; wherein, the second direction is perpendicular to the first direction.

[0012] As an optional solution for the assembly fixture of the battery module provided by this utility model, the base, the pusher and the limiting member abut against the battery cell in three perpendicular directions.

[0013] As an optional embodiment of the assembly fixture for the battery module provided by this utility model, the battery module further includes a first bracket for mounting the battery cell; the assembly fixture further includes:

[0014] A stop member is connected to the base, and the stop member and the push member are spaced apart along the first direction; the stop member is used to abut against the first bracket.

[0015] As an optional solution for the assembly fixture of the battery module provided by this utility model, the base is provided with a positioning structure, and the first bracket is positioned on the base through the positioning structure.

[0016] As an optional solution for the assembly fixture of the battery module provided by this utility model, the base is recessed with a limiting groove, the positioning structure protrudes from the bottom wall of the limiting groove, the first bracket engages with the limiting groove, the first bracket is provided with a positioning groove, and the positioning groove engages with the positioning structure.

[0017] As an optional solution for the assembly fixture of the battery module provided by this utility model, the first bracket includes a base plate and a first side plate connected at an angle. The base plate is in contact with the stop member, and the first side plate is engaged in the limiting groove and is provided with the positioning groove.

[0018] The base has a bearing surface for placing the battery cell, the limiting groove is recessed relative to the bearing surface, and the first side plate is not higher than the bearing surface.

[0019] As an optional solution for the assembly tooling of the battery module provided by this utility model, the stop member is covered with a second flexible pad layer, which is used to contact the first bracket.

[0020] As an optional solution for the assembly fixture of the battery module provided by this utility model, the assembly fixture of the battery module further includes a first fastener, and the stop member is detachably connected to the base through the first fastener.

[0021] As an optional solution for the assembly fixture of the battery module provided by this utility model, the assembly fixture of the battery module further includes a driving structure, which is connected to the pushing member and is used to drive the pushing member to move.

[0022] As an optional solution for the assembly fixture of the battery module provided by this utility model, the driving structure includes a guide rod, the guide rod is connected to the push member, and a guide seat is connected to the base. The guide seat is located on the side of the push member facing away from the battery cell, and the guide rod and the guide seat are slidably engaged along the first direction.

[0023] As an optional solution for the assembly fixture of the battery module provided by this utility model, multiple guide rods and multiple guide seats are provided, and the multiple guide rods and multiple guide seats are slidably engaged in a one-to-one correspondence. The driving structure also includes a push rod, which is connected to the multiple guide rods.

[0024] As an optional solution for the assembly tooling of the battery module provided by this utility model, there is a gap between the pusher and the base.

[0025] As an optional solution for the assembly tooling of the battery module provided by this utility model, the base includes a base body and a friction-reducing plate covered on the base body, and the battery cell can slide along the friction-reducing plate.

[0026] As an optional solution for the assembly tooling of the battery module provided by this utility model, the pushing member is covered with a first flexible pad layer, which is used to contact the battery cell.

[0027] The beneficial effects of this utility model are:

[0028] The battery module assembly fixture provided by this utility model places the battery cell on the base during battery module assembly. The battery cell is located within the positioning area formed by the base, the limiting member, and the pushing member, thus positioning the battery cell accurately on the assembly fixture. When the battery cell needs to be assembled, the pushing member is driven to move along a first direction. The battery cell moves under the push of the pushing member, ultimately achieving assembly with related structures and completing the battery module assembly. Because the battery cell is accurately positioned before assembly, it can be assembled in an accurate position during the pushing process, reducing assembly difficulty, improving assembly efficiency, and thus improving the production efficiency of subsequent products, which is conducive to accelerating mass production. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the battery module structure;

[0031] Figure 2 This is a first structural schematic diagram of the assembly fixture for the battery module provided in a specific embodiment of this utility model;

[0032] Figure 3 This is a first view of the assembly tooling for assembling the battery module provided in a specific embodiment of this utility model;

[0033] Figure 4 This is a second view of the assembly tooling for assembling the battery module provided in a specific embodiment of this utility model.

[0034] Figure 5 This is a schematic diagram of the assembly tooling and the first bracket provided in a specific embodiment of this utility model;

[0035] Figure 6 This is a cross-sectional view of the assembly tooling provided in a specific embodiment of this utility model;

[0036] Figure 7 yes Figure 6 A magnified view of a section at point A in the middle;

[0037] Figure 8 This is a schematic diagram of the second structure of the assembly fixture for the battery module provided in a specific embodiment of this utility model;

[0038] Figure 9 This is a schematic diagram of the third structure of the assembly fixture for the battery module provided in a specific embodiment of this utility model.

[0039] Figure 1 middle:

[0040] 1′ Heating film structure; 2′ Battery cell structure; 3′ Bottom support.

[0041] Figures 2 to 9 middle:

[0042] 1. Base; 2. Pushing component; 3. Stop component; 4. Limiting component; 5. Drive structure; 6. Guide seat; 7. Clearance; 10. Positioning area;

[0043] 11. Positioning structure; 12. Limiting groove; 13. Bearing surface; 14. Second connecting hole; 15. Base body; 16. Friction-reducing plate;

[0044] 121. Bottom wall; 122. Side wall;

[0045] 21. First flexible padding layer;

[0046] 31. First connecting hole; 32. Second flexible pad;

[0047] 51. Guide rod; 52. Push rod;

[0048] 61. Guide hole;

[0049] 100. Battery module;

[0050] 110. First support bracket; 120. Battery cell; 130. Heating film;

[0051] 1100, First chamber; 1101, First side plate; 1102, Second side plate; 1103, Third side plate; 1104, Fourth side plate; 1105, Bottom plate; 1006, Inner partition plate; 1107, Positioning groove;

[0052] 1301, Adhesive part; 1302, Connecting part; 1303, Notch. Detailed Implementation

[0053] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0054] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0057] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0058] In the embodiments of this utility model, the same reference numerals denote the same parts, and for the sake of brevity, detailed descriptions of the same parts are omitted in different embodiments.

[0059] like Figure 2 , Figure 3 as well as Figure 4 As shown, this embodiment provides an assembly fixture for assembling a battery module 100. The assembled battery module 100 specifically includes a first bracket 110 and a battery cell 120. The first bracket 110 is provided with a first chamber 1100 for installing the battery cell 120. Using this assembly fixture can improve the positioning accuracy of the battery cell 120 during assembly, reduce the assembly difficulty, improve the assembly efficiency, and thus improve the production efficiency of subsequent products, which is conducive to accelerating mass production.

[0060] The assembly fixture for the battery module includes a base 1, a pusher 2, and a limiting member 4. The pusher 2 is movably disposed on the base 1 along a first direction; the limiting member 4 is connected to the pusher 2, and the pusher 2, the limiting member 4, and the base 1 form a positioning area 10 for positioning the battery cell 120.

[0061] The assembly fixture for the battery module provided in this embodiment places the battery cell 120 on the base 1 during the assembly of the battery module 100. The battery cell 120 is located within the positioning area 10 formed by the base 1, the limiting member 4, and the pushing member 2, thereby positioning the battery cell 120 accurately on the assembly fixture. When it is necessary to assemble the battery cell 120, the pushing member 2 is driven to move along a first direction. The battery cell 120 moves under the push of the pushing member 2, ultimately achieving assembly with the relevant structures and completing the assembly of the battery module 100. Because the battery cell 120 is accurately positioned before assembly, it can be assembled in an accurate position during the pushing process, reducing assembly difficulty, improving assembly efficiency, and thus improving the production efficiency of subsequent products, which is conducive to accelerating mass production.

[0062] Specifically, the pusher 2 is used to push the battery cell 120 into the first bracket 110 along the first direction, thereby assembling the battery cell 120 with the first bracket 110. Specifically, the opening of the first chamber 1100 of the first bracket 110 faces the pusher 2 so that the battery cell 120 can smoothly enter the first chamber 1100.

[0063] In some embodiments, the assembly fixture for the battery module further includes a stop 3, which is connected to the base 1 and spaced apart from the pusher 2 along a first direction; that is, the pusher 2 can move closer to or further away from the stop 3. The side of the stop 3 facing the pusher 2 is used to abut against the first bracket 110. By having the stop 3 abut against the first bracket 110, the position of the first bracket 110 can be restricted in the first direction, preventing the first bracket 110 from shifting during the process of pushing the battery cell 120 into the first bracket 110.

[0064] In some embodiments, the base 1 is provided with a positioning structure 11 for positioning the first bracket 110 to ensure that the first bracket 110 is positioned accurately.

[0065] The assembly fixture for the battery module provided in this embodiment places both the battery cell 120 and the first bracket 110 on the base 1 during the assembly of the battery module 100. The first bracket 110 abuts against the stop 3, and its placement position on the base 1 is positioned by the positioning structure 11 on the base 1, ensuring accurate positioning of the first bracket 110. The battery cell 120 is located within the positioning area 10 formed by the base 1, the limiting member 4, and the pushing member 2, to position the battery cell 120 on the assembly fixture and ensure accurate positioning of the battery cell 120. After the battery cell 120 and the first bracket 110 are positioned, the pushing member 2 is driven to move along the first direction to approach the stop 3. Under the push of the pushing member 2, the battery cell 120 gradually approaches the first bracket 110 and is finally inserted into the first bracket 110, completing the assembly of the battery cell 120 and the first bracket 110. This assembly fixture can quickly and accurately position the relative positions of the battery cell 120 and the first bracket 110, reducing assembly difficulty, improving assembly efficiency, and thus improving the production efficiency of subsequent products, which is conducive to accelerating mass production.

[0066] Optionally, the battery module 100 includes at least two battery cells 120, with the limiting member 4 located between the two battery cells 120 arranged along a second direction; wherein the second direction is perpendicular to the first direction. That is, the limiting member 4 separates two adjacent battery cells 120 along the second direction, ensuring that the spacing between two adjacent battery cells 120 meets the assembly requirements and facilitating accurate positioning of the relative positions of the two battery cells 120.

[0067] Optionally, the base 1, the pushing member 2, and the limiting member 4 abut against the battery cell 120 in three mutually perpendicular directions. By abutting against the battery cell 120 in these three mutually perpendicular directions, the placement position of the battery cell 120 on the base 1 can be accurately located, improving positioning accuracy. Specifically, the base 1, the pushing member 2, and the limiting member 4 position the battery cell 120 in the first direction, the second direction, and the vertical direction, respectively. The first direction, the second direction, and the vertical direction are mutually perpendicular; in this embodiment, the vertical direction is defined as the third direction. The base 1 can limit the battery cell 120 in the third direction, the limiting member 4 can abut against and limit the battery cell 120 in the second direction, and the pushing member 2 can abut against and limit the battery cell 120 in the first direction.

[0068] Furthermore, the base 1 can limit the first bracket 110 in a third direction, the stop 3 can limit the first bracket 110 in a first direction, and the positioning structure 11 can limit the first bracket 110 in a second direction.

[0069] In the battery module 100, there are at least two battery cells 120 spaced apart along the second direction, and the two battery cells 120 are placed on both sides of the limiting member 4. Two or more layers of battery cells 120 can be arranged along the third direction, and each layer includes two battery cells 120 spaced apart along the second direction.

[0070] When assembling the battery module 100, battery cells 120 are placed on both sides of the limiting member 4. The battery cells 120 are placed on the base 1 and are in contact with both the pushing member 2 and the limiting member 4 to quickly position the relative positions of multiple battery cells 120. The first bracket 110 for mounting the battery cells 120 is placed on the base 1 and is in contact with the stop member 3. The base 1, the stop member 3, and the positioning structure 11 can limit the positioning of the first bracket 110 in three perpendicular directions, thereby ensuring the accurate positioning of the first bracket 110. After the battery cells 120 and the first bracket 110 are positioned, the pushing member 2 is driven to move along the first direction to approach the stop member 3. Under the push of the pushing member 2, the battery cells 120 gradually approach the first bracket 110 and are finally installed into the first chamber 1100 of the first bracket 110, completing the assembly of the battery cells 120 and the first bracket 110. This assembly fixture can quickly and accurately position the relative positions of the battery cell 120 and the first bracket 110, reducing assembly difficulty, improving assembly efficiency, and thus improving the production efficiency of subsequent products, which is conducive to accelerating mass production.

[0071] Furthermore, such as Figure 3 and Figure 4As shown, the battery module 100 also includes a heating film 130. Release paper is provided on both sides of the heating film 130. After the release paper is removed, it can be used to bond two adjacent battery cells 120. Specifically, the heating film 130 includes two adhesive portions 1301 and a connecting portion 1302 connecting the two adhesive portions 1301. The adhesive portions 1301 are used to bond to the large surface of the battery cell 120. A notch 1303 is formed between the connecting portion 1302 and the two adhesive portions 1301, and this notch 1303 can accommodate the limiting member 4.

[0072] When assembling a battery module 100 with four cells 120, the two bottom cells 120 are first placed on the base 1, with the side of the cell 120 with the terminal post facing the pusher 2. The two cells 120 are separated by the limiting member 4, and the two cells 120 abut against the pusher 2 and the limiting member 4 respectively, to position the cells 120 in the first, second, and third directions. Then, the release paper on one side of the heating film 130 is peeled off to bond the two adhesive portions 1301 of the heating film 130 to the large surfaces of the two bottom cells 120. Because the two cells 120 are accurately positioned, the position of the heating film 130 is prevented from being misaligned. Then, the release paper on the other side of the heating film 130 is peeled off, and the two upper cells 120 are pasted onto the two adhesive portions 1301 of the heating film 130 and pressed firmly to ensure a firm bond. Of course, if the number of cells 120 in the battery module 100 is greater than 4, a heating film 130 can be attached to the two upper cells 120, and cells 120 can be attached to the heating film 130. There are no specific limitations here.

[0073] After the battery cell 120 is positioned, the pusher 2 is driven to move along the first direction to push the battery cell 120 into the first chamber 1100 of the first bracket 110.

[0074] Of course, one limiter 4 can be set or multiple limiters can be set at intervals along the second direction. Two adjacent cells 120 arranged along the second direction are separated by limiters 4. That is, two, three, four or more cells 120 can be set in each layer. No specific limit is made here.

[0075] For example, the battery module 100 also includes a second bracket, which has a second chamber for mounting and fixing the battery cell 120. After the battery cell 120 is installed in the first bracket 110, the first bracket 110 is erected so that the terminal of the battery cell 120 faces upward. Then, the second bracket is placed on the upper part of the battery cell 120, and the second bracket is fixedly connected to the first bracket 110 using fasteners such as bolts or screws.

[0076] like Figure 2 and Figure 5As shown, in some embodiments, a limiting groove 12 is recessed on the base 1, and a positioning structure 11 protrudes from the bottom wall 121 of the limiting groove 12. The first bracket 110 engages with the limiting groove 12, and the first bracket 110 is provided with a positioning groove 1107, which engages with the positioning structure 11. Through the engagement of the first bracket 110 with the limiting groove 12 and the engagement of the positioning groove 1107 with the positioning structure 11, the positioning accuracy of the first bracket 110 and its placement stability on the base 1 can be effectively improved, preventing arbitrary movement. Specifically, the shape and size of the positioning groove 1107 and the positioning structure 11 are adaptively matched, improving the positioning accuracy of the first bracket 110.

[0077] In other embodiments, the positioning structure 11 may also be a baffle structure connected to the base 1 and / or the stop member 3. The baffle structure stops on one side of the first bracket 110 along the second direction, which can also achieve the upper limit of the first bracket 110 in the second direction.

[0078] like Figure 6 As shown, the first bracket 110 is placed on the bottom wall 121 of the limiting groove 12, with its left side abutting against the side wall 122 of the limiting groove 12 and its right side abutting against the stop 3.

[0079] like Figure 5 As shown, the first support 110 includes a base plate 1105, a first side plate 1101, a second side plate 1102, a third side plate 1103, and a fourth side plate 1104. The first side plate 1101, second side plate 1102, third side plate 1103, and fourth side plate 1104 are arranged circumferentially along the base plate 1105 and connected to it, forming an angle with the base plate 1105. The first side plate 1101 and second side plate 1102 are arranged opposite each other, and the third side plate 1103 and fourth side plate 1104 are arranged opposite each other. The base plate 1105, first side plate 1101, second side plate 1102, third side plate 1103, and fourth side plate 1104 enclose the aforementioned first chamber 1100. Further, two inner partition plates 1006 are spaced apart within the first support 110 to separate the battery cells 120 arranged along the second direction.

[0080] like Figure 5 and Figure 6 As shown, the base plate 1105 abuts against the stop member 3, and the first side plate 1101 is engaged in the limiting groove 12 and is provided with a positioning groove 1107. The base 1 has a bearing surface 13 for placing the battery cell 120. The limiting groove 12 is recessed relative to the bearing surface 13, and the first side plate 1101 is not higher than the bearing surface 13, thereby ensuring that the battery cell 120 will not encounter resistance when pushed into the first bracket 110, so that the battery cell 120 can be smoothly assembled into the first bracket 110. Specifically, the first side plate 1101 can be flush with or lower than the bearing surface 13.

[0081] Optionally, such as Figure 4 As shown, the assembly fixture for the battery module also includes a drive structure 5, which is connected to the pusher 2 and is used to drive the pusher 2 to move along the first direction. The drive structure 5 can more easily apply force to the pusher 2 so that the battery cell 120 can be smoothly installed into the first bracket 110.

[0082] In some embodiments, such as Figure 5 As shown, the drive structure 5 includes a guide rod 51, which is connected to the pusher 2. A guide seat 6 is connected to the base 1, located on the side of the pusher 2 facing away from the stop 3. The guide rod 51 and the guide seat 6 are slidably engaged in a first direction. By applying force to the guide rod 51, the guide rod 51 slides along the guide seat 6, thereby enabling the pusher 2 to move in the first direction. The sliding engagement between the guide rod 51 and the guide seat 6 improves the movement accuracy and stability of the pusher 2, prevents the pusher 2 from shifting, and thus avoids misalignment between the battery cell 120 and the first chamber 1100, allowing the battery cell 120 to be smoothly assembled into the first bracket 110.

[0083] Specifically, the guide seat 6 is provided with a guide hole 61, the axial direction of the guide hole 61 is the first direction, and the guide rod 51 slides through the guide hole 61 along the first direction.

[0084] For example, multiple guide rods 51 and guide seats 6 are provided, with each guide rod 51 slidingly engaging with a corresponding guide seat 6, which further improves guiding accuracy and prevents the pusher 2 from deviating. The drive structure 5 also includes a push rod 52, which is connected to multiple guide rods 51. The operator can push the multiple guide rods 51 along the guide holes 61 of the corresponding guide seats 6 using the push rod 52, which facilitates force application and operation.

[0085] Furthermore, a sliding bearing for the guide rod 51 can be provided inside the guide hole 61.

[0086] In other embodiments, the drive structure 5 can also be a linear drive structure such as a cylinder, hydraulic cylinder, electric push rod 52, or lead screw and nut mechanism, which requires no manual operation and is more labor-saving.

[0087] like Figure 6 and Figure 7 As shown, there is a gap 7 between the pusher 2 and the base 1. The gap 7 can prevent direct frictional contact between the pusher 2 and the base 1, reduce the resistance when pushing the pusher 2, and prevent long-term friction between the pusher 2 and the base 1 from increasing the roughness of the base 1 and wearing down the bottommost cell 120.

[0088] In this embodiment, the assembly fixture for the battery module also includes a first fastener, and the stop 3 is detachably connected to the base 1 through the first fastener. When the battery cell 120 is pushed into the first bracket 110, the first bracket 110 will apply a pushing force along the first direction to the stop 3. The stop 3 may deform under this pushing force for a long time. By setting the stop 3 to be detachable from the base 1, it can be replaced when the stop 3 is deformed, without discarding the entire assembly fixture, thus reducing maintenance costs.

[0089] Specifically, see Figure 2 and Figure 8 The stop 3 is provided with a first connecting hole 31, and the base 1 is provided with a second connecting hole 14. The first fastener is exemplarily a screw, and the second connecting hole 14 is a threaded hole. The screw passes through the first connecting hole 31 and is screwed into the second connecting hole 14.

[0090] For example, the limiting member 4 is connected to the pushing member 2 by a second fastener, the pushing member 2 is connected to the guide rod 51 by a third fastener, the guide rod 51 is connected to the push rod 52 by a fourth fastener, and the guide seat 6 is connected to the base 1 by a fifth fastener. Optionally, the second, third, fourth, and fifth fasteners are all screws.

[0091] like Figure 8 As shown, in some embodiments, the base 1 includes a base body 15 and a friction-reducing plate 16 covering the base body 15. The upper surface of the friction-reducing plate 16 is the aforementioned bearing surface 13, and the battery cell 120 can slide along the friction-reducing plate 16. By providing the friction-reducing plate 16, the friction between the battery cell 120 and the base 1 can be reduced, thereby reducing the resistance when pushing the battery cell 120 into the first bracket 110 and reducing wear on the battery cell 120.

[0092] For example, the friction-reducing plate 16 can be a ceramic plate or a polyethylene plate, and the upper surface of the ceramic plate or polyethylene plate can be polished to further reduce the friction between the battery cell 120 and the base 1.

[0093] like Figure 8 As shown, the pusher 2 is covered with a first flexible pad 21, which is used to contact the battery cell 120 to prevent damage to the battery cell 120 caused by hard contact between the terminal of the battery cell 120 and the pusher 2. Figure 9 As shown, the stop 3 is covered with a second flexible pad 32, which is used to contact the first bracket 110 to avoid the first bracket 110 being damaged due to hard contact between the first bracket 110 and the stop 3.

[0094] For example, the first flexible pad 21 and the second flexible pad 32 can be silicone pads or polyurethane foam pads in the form of rigid foam.

[0095] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery module assembly fixture, characterized in that, The battery module (100) includes battery cells (120); the assembly fixture includes: Base (1); A pusher (2) is movably disposed on the base (1) along a first direction; A limiting member (4) is connected to the pushing member (2), and the pushing member (2), the limiting member (4), and the base (1) form a positioning area (10) for positioning the battery cell (120).

2. The assembly fixture for the battery module according to claim 1, characterized in that, The battery module (100) includes at least two of the battery cells (120), and the limiting member (4) is located between the two battery cells (120) arranged along a second direction; wherein the second direction is perpendicular to the first direction.

3. The assembly fixture for the battery module according to claim 1, characterized in that, The base (1), the pusher (2), and the limiting member (4) abut against the battery cell (120) in three perpendicular directions.

4. The assembly fixture for the battery module according to claim 1, characterized in that, The battery module (100) further includes a first bracket (110) for mounting the battery cell (120); the assembly fixture further includes: A stop (3) is connected to the base (1), and the stop (3) and the pusher (2) are spaced apart along the first direction; the stop (3) is used to abut against the first bracket (110).

5. The assembly fixture for the battery module according to claim 4, characterized in that, The base (1) is provided with a positioning structure (11), and the first bracket (110) is positioned on the base (1) through the positioning structure (11).

6. The assembly fixture for the battery module according to claim 5, characterized in that, The base (1) is recessed with a limiting groove (12), and the positioning structure (11) protrudes from the bottom wall (121) of the limiting groove (12). The first bracket (110) engages with the limiting groove (12), and the first bracket (110) is provided with a positioning groove (1107), which engages with the positioning structure (11).

7. The assembly fixture for the battery module according to claim 6, characterized in that, The first bracket (110) includes a base plate (1105) and a first side plate (1101) connected at an angle. The base plate (1105) is attached to the stop member (3). The first side plate (1101) is engaged in the limiting groove (12) and is provided with the positioning groove (1107). The base (1) has a bearing surface (13) for placing the battery cell (120), the limiting groove (12) is recessed relative to the bearing surface (13), and the first side plate (1101) is not higher than the bearing surface (13).

8. The assembly fixture for the battery module according to claim 4, characterized in that, The stop (3) is covered with a second flexible pad (32), which is used to contact the first bracket (110).

9. The assembly fixture for the battery module according to claim 4, characterized in that, The assembly fixture for the battery module also includes a first fastener, and the stop (3) is detachably connected to the base (1) through the first fastener.

10. The assembly fixture for the battery module according to claim 1, characterized in that, The assembly fixture for the battery module also includes a drive structure (5), which is connected to the pusher (2) and is used to drive the pusher (2) to move.

11. The assembly fixture for the battery module according to claim 10, characterized in that, The drive structure (5) includes a guide rod (51), which is connected to the push member (2). A guide seat (6) is connected to the base (1). The guide seat (6) is located on the side of the push member (2) facing away from the battery cell (120). The guide rod (51) and the guide seat (6) are slidably engaged along the first direction.

12. The assembly fixture for the battery module according to claim 11, characterized in that, Multiple guide rods (51) and multiple guide seats (6) are provided. Multiple guide rods (51) and multiple guide seats (6) are slidably engaged in a one-to-one correspondence. The driving structure (5) also includes a push rod (52), which is connected to multiple guide rods (51).

13. The assembly fixture for the battery module according to claim 1, characterized in that, There is a gap (7) between the pusher (2) and the base (1).

14. The assembly fixture for the battery module according to any one of claims 1-13, characterized in that, The base (1) includes a base body (15) and a friction-reducing plate (16) covering the base body (15), and the battery cell (120) can slide along the friction-reducing plate (16).

15. The assembly fixture for the battery module according to any one of claims 1-13, characterized in that, The pusher (2) is covered with a first flexible pad (21), which is used to contact the battery cell (120).

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