A battery module jig
By designing the fixed and movable parts of the module bracket, the problem of steel strip damage during battery module press-fitting is solved, enabling adaptive press-fitting of various battery modules and ensuring the stability and compatibility of the steel strip.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU GREATER BAY TECH CO LTD
- Filing Date
- 2024-11-18
- Publication Date
- 2026-07-21
AI Technical Summary
In the existing tooling process for pressing battery modules, the steel strip is easily affected by the squeezing and sliding of the battery and end plate, and it is difficult to adapt to the pressing of battery modules of various quantities and sizes.
The module bracket design includes a fixed part and a movable part. One end of the steel strip bracket is fixedly connected to the fixed part, and the other end is movably connected to the movable part. The movement direction of the movable part is restricted by the guide structure to ensure that the steel strip bracket does not move with the movable part. Combined with the telescopic module bracket, it can adapt to different battery module sizes.
It avoids the adverse effects of battery and end plate squeezing and sliding on the steel strip, ensures the steel strip's ability to constrain the battery module, and can adapt to the pressing of battery modules of various quantities and sizes, with good compatibility.
Smart Images
Figure CN224537190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, and in particular to a battery module fixture. Background Technology
[0002] After the prismatic battery module is stacked and pre-tightened, a steel strip with a fixed circumference needs to be fitted. The upper steel strip can be directly fitted from top to bottom after extrusion, while the lower steel strip needs to be pre-positioned at the bottom of the battery module and then fitted from bottom to top to avoid interference with the clamping blocks that maintain the extrusion. This requires tooling to support the steel strip and the battery module, ensuring that the steel strip is located at the bottom of the tooling and the battery module at the top. In particular, in existing technologies, the bottom of the end plate of the battery module is lower than the bottom of the battery. In actual operation, existing tooling is usually a pad of fixed length. On the one hand, the extrusion and sliding of the battery and end plate can easily have an adverse effect on the steel strip. On the other hand, the existing functions cannot well adapt to the press-fitting of battery modules of various quantities and sizes. Utility Model Content
[0003] The purpose of this utility model is to provide a battery module fixture that can pre-arrange a steel strip at the bottom of the battery module, avoiding the impact of the battery and end plate squeezing and sliding on the steel strip. Furthermore, the telescopic module bracket can meet the pressing of battery modules of various quantities and sizes, and has good compatibility.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] This utility model discloses a battery module fixture, including: a module bracket, the module bracket including a fixed part and a movable part, the movable part being movable relative to the fixed part along a first direction; a steel strip bracket, along the first direction, one end of the steel strip bracket being fixedly connected to the fixed part, and the other end being movably connected to the movable part, the steel strip bracket being used to support the steel strip.
[0006] In some embodiments, the module support has a first support surface and two second support surfaces. Along a second direction, the second support surfaces are located below the first support surfaces, and the first support surfaces are used to support multiple batteries of the battery module. The second support surfaces are used to support two end plates of the battery module. The first direction and the second direction are perpendicular to each other.
[0007] In some embodiments, one of the fixed portion and the movable portion is provided with a guide groove extending along the first direction, and the other of the fixed portion and the movable portion is provided with a guide protrusion extending along the first direction, the guide protrusion being slidably engaged with the guide groove.
[0008] In other embodiments, one of the fixed part and the movable part is provided with a plurality of insertion posts, each of the insertion posts extending along the first direction, and the other of the fixed part and the movable part is provided with a plurality of insertion holes, each of the insertion holes extending along the first direction, and the plurality of insertion holes corresponding one-to-one with the plurality of insertion posts.
[0009] In some embodiments, along a third direction, the size of the battery module is equal to the size of the module bracket, the size of the battery module is equal to the size of the steel strip bracket, and the third direction is perpendicular to the first direction.
[0010] In some embodiments, the steel strip bracket includes two cross-arranged and rotatably connected support members. The two ends of the support members are respectively provided with a first support column and a second support column for engaging with the corner of the steel strip, wherein: the first support column is fixedly connected to the fixed part, and the second support column is movably connected to the movable part.
[0011] In some specific embodiments, one of the first support column and the fixing part is provided with a fixing hole, and the other of the first support column and the fixing part is provided with a fixing column that cooperates with the fixing hole; or: the first support column is provided with a first connecting hole, and the fixing part is provided with a second connecting hole corresponding to the first connecting hole, and the connector passes through the first connecting hole and cooperates with the second connecting hole to fix the first support column on the fixing part.
[0012] In some specific embodiments, the movable part is provided with a guide groove extending along the first direction, and the second support column is provided with a guide member that cooperates with the guide groove, so that the movable part and the second support column are movably connected.
[0013] In some more specific embodiments, the guide member includes a guide post integrally formed with the second support post; or: the second support post is provided with a guide hole corresponding to the guide groove, and the guide member includes a guide pin inserted into the guide hole.
[0014] In some embodiments, the fixed part and the movable part are respectively provided with a second support surface on the side opposite to each other, and the fixed part and the movable part respectively support an end plate and a portion of the battery.
[0015] The battery module fixture of this utility model has the following advantages: Since one end of the steel strip bracket is fixedly connected to the fixed part and the other end is movably connected to the movable part, the steel strip bracket will not move when the movable part moves, thus avoiding the adverse effects of the battery and end plate squeezing and sliding on the steel strip, ensuring the steel strip's constraint ability on the battery module, and the telescopic module bracket can meet the pressing of battery modules of various quantities and sizes, thus having good compatibility.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the battery module fixture according to Embodiment 1 of this utility model;
[0018] Figure 2 This is an exploded structural diagram of the battery module fixture according to Embodiment 1 of this utility model;
[0019] Figure 3 This is a schematic diagram of the cooperation structure between the stacking fixture and the steel strip of the battery module in Embodiment 1 of this utility model;
[0020] Figure 4 yes Figure 3 A schematic diagram showing the addition of a battery module to the structure shown.
[0021] Figure 5 yes Figure 4 A schematic diagram of the structure of the battery module shown, when it is squeezed into the steel strip after being extruded;
[0022] Figure 6 yes Figure 5 The diagram shows a structure in which two steel strips are fitted onto the battery module.
[0023] Figure label:
[0024] 100. Module bracket; 110. Fixing part; 111. Guide groove; 112. Second connecting hole; 120. Movable part; 121. Guide protrusion; 122. Guide groove; 101. First support surface; 102. Second support surface;
[0025] 200. Steel strip bracket; 210. Support component; 211. First support column; 2111. First connecting hole; 212. Second support column; 2121. Guide hole;
[0026] 10. Battery; 20. End plate; 30. Steel strip. Detailed Implementation
[0027] 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.
[0028] 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.
[0029] In the description of this embodiment, the terms "upper," "lower," "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.
[0030] This utility model discloses a battery module fixture, referenced... Figure 1 and Figure 2 As shown, the battery module fixture includes a module support 100, which includes a fixed portion 110 and a movable portion 120. The movable portion 120 is positioned relative to the fixed portion 110 along a first direction (…). Figure 1 The steel belt bracket 200 is movable in the direction shown in the middle (a). Along the first direction, one end of the steel belt bracket 200 is fixedly connected to the fixed part 110, and the other end is movably connected to the movable part 120. The steel belt bracket 200 is used to support the steel belt 30.
[0031] Understandably, in actual operation, the drive unit 120 moves along the first direction to minimize the length of the entire module bracket 100 along the first direction, and then the steel strip 30 is fitted onto the steel strip bracket 200. Figure 3 (as shown); then drive the movable part 120 to move away from the fixed part 110, and place one end plate 20, multiple batteries 10 and another end plate 20 sequentially on the entire module bracket 100. Figure 4 (As shown); The arranged structure is placed in the extruder for extrusion, which reduces the gap between the two end plates 20 and presses the two adjacent batteries 10 together (as shown). Figure 5As shown), during the movement of the end plate 20, the end plate 20 can also drive the movable part 120 to move towards the fixed part 110. Since one end of the steel strip bracket 200 is fixedly connected to the fixed part 110 and the other end is movably connected to the movable part 120, the steel strip bracket 200 will not move along with the movable part 120, ensuring that the length of the steel strip 30 will not change. After extrusion, the steel strip 30 on the steel strip bracket 200 is inserted into the battery 10 from the bottom, and the upper steel strip 30 is inserted into the battery 10 from the top to complete the installation (as shown). Figure 6 (As shown).
[0032] In summary, since one end of the steel strip bracket 200 is fixedly connected to the fixed part 110 and the other end is movably connected to the movable part 120, the steel strip bracket 200 will not move when the movable part 120 moves. This avoids the adverse effects of the battery 10 and end plate 20 squeezing and sliding on the steel strip 30, ensuring the steel strip 30's constraint capability on the battery module. Furthermore, the telescopic module bracket 100 can meet the pressing requirements of various quantities and sizes of battery modules, exhibiting good compatibility.
[0033] Optional, see reference Figure 1 As shown, the module bracket 100 has a first support surface 101 and two second support surfaces 102, along the second direction ( Figure 1 (As shown in direction b), the second support surface 102 is located below the first support surface 101. The first support surface 101 supports multiple batteries 10 of the battery module, and the second support surface 102 supports the two end plates 20 of the battery module. The first and second directions are perpendicular to each other. It should be noted that conventional tooling consists of only a pad. When supporting the battery module, since the bottom of the end plate 20 is lower than the bottom of the battery, the pad needs to support the battery during placement to ensure stable support during the compression process. However, since the size of the battery module will decrease after compression, if the length of the pad is equal to the size of the battery module before compression, the pad will interfere with the compression. Therefore, the length of the existing pad must be smaller than the size of the battery module before compression. This results in some batteries not being supported, and during compression, the unsupported batteries will rub against the edge of the pad, causing scratches.
[0034] In this embodiment, since the module bracket 100 has a first support surface 101 with a height difference and two second support surfaces 102, after the battery module is placed, the height difference between the first support surface 101 and the second support surface 102 can compensate for the height of the end plate 20 exceeding that of the battery 10, ensuring that all batteries 10 can be stably supported during the extrusion process. The bottom of the entire battery module is a complete and flat plane after being fitted with the module bracket 100. In this way, the edge of the battery 10 will not rub against the module bracket 100 during the extrusion process, thereby avoiding the phenomenon of the battery being scratched by the module bracket 100 during the extrusion process.
[0035] Optionally, the fixed part 110 and the movable part 120 are each provided with a second support surface 102 on the side opposite to each other. The fixed part 110 and the movable part 120 respectively support an end plate 20 and a portion of the battery 10. It is understandable that since the two end plates 20 of the battery module are located at both ends of the battery 10, if one of the fixed part 110 and the movable part 120 supports one end plate 20 and the entire battery 10, while the other only supports one end plate 20, it will result in one of the fixed part 110 and the movable part 120 being too large and the other being too small. The end plate 20 is prone to tilting or falling off when placed on a part that is too small. By having the fixed part 110 and the movable part 120 each support a portion of the battery 10, the fixed part 110 and the movable part 120 can both have a relatively long dimension along the first direction, ensuring stable support for the two end plates 20.
[0036] refer to Figure 2 As shown, the fixed part 110 is provided with a guide groove 111 extending along a first direction, and the movable part 120 is provided with a guide protrusion 121 extending along the first direction. The guide protrusion 121 is slidably engaged with the guide groove 111. It can be understood that the fixed part 110 and the movable part 120, through the engagement of the guide groove 111 and the guide protrusion 121, can restrict the movement direction of the movable part 120, ensuring that it can only move along the first direction during actual operation, thereby avoiding process failures caused by misalignment of the movable part 120. In this embodiment, the guide groove 111 is a rectangular groove, and the guide protrusion 121 is a rectangular protrusion. In an alternative embodiment, the guide groove 111 can also be provided on the movable part 120, and the guide protrusion 121 can be provided on the fixed part 110. The shapes of the guide groove 111 and the guide protrusion 121 can also be selected according to actual needs.
[0037] Of course, in other embodiments of this utility model, the guide structure between the fixed part 110 and the movable part 120 can be selected according to actual needs. For example, in some other embodiments, the fixed part 110 is provided with a plurality of pins, each pin extending along a first direction, and the other movable part 120 is provided with a plurality of holes, each hole extending along the first direction, with the plurality of holes corresponding one-to-one with the plurality of pins. As another example, the movable part 120 is provided with a plurality of pins, each pin extending along a first direction, and the other fixed part 110 is provided with a plurality of holes, each hole extending along the first direction, with the plurality of holes corresponding one-to-one with the plurality of pins.
[0038] In addition, in other embodiments of this utility model, a guide structure may not be provided between the fixed part 110 and the movable part 120. The movable part 120 can be driven by a clamping mechanism during actual driving, which can also limit the direction of movement of the movable part 120.
[0039] Optionally, along a third direction ( Figure 1 In the direction shown in Figure c), the size of the battery module is equal to the size of the module bracket 100 and the steel strip bracket 200, and the third direction is perpendicular to the first and second directions, respectively. It is understood that if the battery module extends beyond the module bracket 100 and the steel strip bracket 200 along the third direction, the steel strip 30 may be scraped during the compression of the battery 10 and the end plate 20. In this embodiment, the size of the battery module is equal to the size of the module bracket 100 and the steel strip bracket 200 along the third direction, ensuring that the battery 10 and the end plate 20 will not come into contact with the steel strip 30 during compression, thereby preventing damage to the steel strip 30.
[0040] refer to Figure 2 As shown, the steel strip support 200 includes two cross-connected and rotatably linked support members 210. Each end of the support member 210 is provided with a first support column 211 and a second support column 212 for corner engagement with the steel strip 30. The first support column 211 is fixedly connected to the fixed part 110, and the second support column 212 is movably connected to the movable part 120. It can be understood that the steel strip support 200, with its two cross-connected support members 210 rather than a frame, avoids the movable part 120 from tilting due to the parallelogram shape of the steel strip support 200 during extension and retraction. The two first support columns 211 and two second support columns 212 provide stable support for the steel strip 30, preventing deformation of the steel strip 30.
[0041] Optional, see reference Figure 2As shown, the first support column 211 has a first connecting hole 2111, and the fixing part 110 has a second connecting hole 112 corresponding to the first connecting hole 2111. A connector (not shown) passes through the first connecting hole 2111 and engages with the second connecting hole 112 to fix the first support column 211 onto the fixing part 110. It can be understood that in actual assembly, it is only necessary to connect the two support members 210 together via a hinge shaft, then align the first connecting holes 2111 of the two first support columns 211 with the two second connecting holes 112, and finally insert the connector. This installation method is very convenient and has good stability. In this embodiment, the connector can be a pin or a screw.
[0042] Optional, see reference Figure 2 As shown, the movable part 120 is provided with a guide groove 122 extending along a first direction, and the second support column 212 is provided with a guide member that mates with the guide groove 122, so that the movable part 120 and the second support column 212 are movably connected. The second support column 212 is provided with a guide hole 2121 corresponding to the guide groove 122, and the guide member includes a guide pin inserted into the guide hole 2121. It can be understood that in the actual assembly process, it is only necessary to connect the two support members 210 together by a hinge shaft, then make the guide holes 2121 of the two second support columns 212 correspond to the two guide grooves 122, and finally insert the guide pin. This installation method is very convenient, and the guide pin can play a good limiting role during the sliding of the guide groove 122, thereby ensuring that the movable part 120 can only slide along the first direction during the movement. Of course, the guide member can also be selected with other structures according to actual needs. For example, the guide member includes a guide column integrally formed with the second support column 212.
[0043] Example 2:
[0044] The structure of the battery module fixture in this embodiment is basically the same as that in Embodiment 1, except that the first support column 211 is provided with a fixing hole, and the other fixing part 110 is provided with a fixing column that mates with the fixing hole. Alternatively, the first support column 211 is provided with a fixing column, and the other fixing part 110 is provided with a fixing hole that mates with the fixing hole. Compared to the embodiment in which a connector is used to connect the first support column 211 and the fixing part 110, this embodiment directly uses a plug-in method to connect the two, eliminating the need for a connector and simplifying the assembly operation.
[0045] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0046] 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 fixture, characterized in that, include: A module bracket (100) is used to support the battery module and includes a fixed part (110) and a movable part (120), wherein the movable part (120) is movable relative to the fixed part (110) in a first direction; A steel strip bracket (200) is provided along the first direction. One end of the steel strip bracket (200) is fixedly connected to the fixed part (110), and the other end is movably connected to the movable part (120). The steel strip bracket (200) is used to support the steel strip (30).
2. The battery module fixture according to claim 1, characterized in that, The module bracket (100) has a first support surface (101) and two second support surfaces (102). Along the second direction, the second support surface (102) is located below the first support surface (101). The first support surface (101) is used to support multiple batteries (10) of the battery module, and the second support surface (102) is used to support two end plates (20) of the battery module. The first direction and the second direction are perpendicular to each other.
3. The battery module fixture according to claim 1, characterized in that, One of the fixed part (110) and the movable part (120) is provided with a guide groove (111) extending along the first direction, and the other of the fixed part (110) and the movable part (120) is provided with a guide protrusion (121) extending along the first direction. The guide protrusion (121) is slidably engaged with the guide groove (111).
4. The battery module fixture according to claim 1, characterized in that, One of the fixed part (110) and the movable part (120) is provided with a plurality of insertion posts, each of the insertion posts extending along the first direction. The other of the fixed part (110) and the movable part (120) is provided with a plurality of insertion holes, each of the insertion holes extending along the first direction. The plurality of insertion holes are provided in a one-to-one correspondence with the plurality of insertion posts.
5. The battery module fixture according to claim 1, characterized in that, Along the third direction, the size of the battery module is equal to the size of the module bracket (100), the size of the battery module is equal to the size of the steel strip bracket (200), and the third direction is perpendicular to the first direction.
6. The battery module fixture according to claim 1, characterized in that, The steel strip support (200) includes two cross-connected and rotatably connected support members (210). Each support member (210) has a first support column (211) and a second support column (212) at its ends for engaging with the corner of the steel strip (30), wherein: The first support column (211) is fixedly connected to the fixed part (110), and the second support column (212) is movably connected to the movable part (120).
7. The battery module fixture according to claim 6, characterized in that, One of the first support column (211) and the fixing part (110) is provided with a fixing hole, and the other of the first support column (211) and the fixing part (110) is provided with a fixing column that cooperates with the fixing hole; Alternatively: The first support column (211) is provided with a first connecting hole (2111), and the fixing part (110) is provided with a second connecting hole (112) corresponding to the first connecting hole (2111). After the connector passes through the first connecting hole (2111), it cooperates with the second connecting hole (112) to fix the first support column (211) on the fixing part (110).
8. The battery module fixture according to claim 6, characterized in that, The movable part (120) is provided with a guide groove (122) extending along the first direction, and the second support column (212) is provided with a guide member that cooperates with the guide groove (122) so that the movable part (120) and the second support column (212) are movably connected.
9. The battery module fixture according to claim 8, characterized in that, The guide member includes a guide post integrally formed with the second support post (212); or: The second support column (212) is provided with a guide hole (2121) corresponding to the guide groove (122), and the guide member includes a guide pin inserted into the guide hole (2121).
10. The battery module fixture according to claim 2, characterized in that, The fixed part (110) and the movable part (120) are respectively provided with a second support surface (102) on the side opposite to each other. The fixed part (110) and the movable part (120) respectively support an end plate (20) and part of the battery (10).