Battery cell module mounting structure

Abstract

The utility model provides a kind of electric core module mounting structure, the electric core module mounting structure includes bottom plate, fixedly arranged on the bottom plate and along length direction interval arrangement multiple electric core partition, along width direction and located in the two sides of the electric core side plate, to the fixed bolt for fixing the side plate of two sides, electric core module is placed on the bottom plate and along length direction and located between two adjacent electric core partition, the electric core partition is plastic part.The electric core module mounting structure of the utility model realizes the overall optimization of production manufacturing, assembly technology and structural performance by the electric core partition of plastic part, greatly reduces the part cost and processing difficulty on the one hand, reduces the assembly difficulty on the other hand, simplifies installation process.

Description

Technical Field

[0001] This utility model relates to the field of energy storage battery technology, specifically to a cell module mounting structure. Background Technology

[0002] With the rapid development of the energy storage industry, the requirements for energy density, safety performance, and production efficiency of power battery packs are increasing. As the core energy unit, the fixing and installation method of the internal cell modules of the battery pack directly affects the structural stability, safety and reliability, and manufacturing cost of the battery pack.

[0003] In existing technologies, the installation of cell modules within a battery pack typically employs a multi-level structural frame. First, multiple cells are assembled into a cell module, which is then equipped with independent support brackets, end plates, and side plates. These components are secured using bolts, tie rods, or cable ties to form a relatively rigid sub-module. Next, this sub-module is hoisted or pushed into the battery housing and fixed to the base plate or side beams of the battery housing using additional connectors.

[0004] However, the assembly and fixing of cell modules in traditional battery packs is complex and cumbersome during installation, and the cell support structure has poor strength, resulting in safety and stability issues.

[0005] In view of this, it is necessary to improve the existing battery cell module installation structure to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a battery cell module installation structure to solve the problems of complex assembly structure and cumbersome process of existing battery packs.

[0007] To achieve the above objectives, this utility model provides a battery cell module mounting structure, which includes a base plate, a plurality of battery cell partitions fixedly disposed on the base plate and spaced apart along the length direction, side plates located on both sides of the battery cell along the width direction, and fixing bolts for fixing the side plates on both sides. The battery cell module is placed on the base plate and located between two adjacent battery cell partitions along the length direction, and the battery cell partitions are plastic parts.

[0008] As a further improvement of this utility model, the battery cell module mounting structure also includes a plurality of positioning blocks fixed on the base plate, the positioning blocks having a first positioning pin protruding outward, and the side plate having a first positioning hole for positioning and insertion of the first positioning pin.

[0009] As a further improvement of this utility model, the number of positioning blocks is four, and the four positioning blocks are arranged at the four corners of the base plate.

[0010] As a further improvement of this utility model, the side plate is provided with a second positioning pin that protrudes inward along the width direction, and the battery cell separator is provided with a second positioning hole for insertion and cooperation with the second positioning pin.

[0011] As a further improvement of this utility model, the multiple battery cell separators are all the same size and shape.

[0012] As a further improvement of this utility model, the cell separator is fixed to the base plate by screws.

[0013] As a further improvement of this utility model, the side plate is a sheet metal part.

[0014] As a further improvement of this utility model, the fixing bolt passes through the two side plates along the width direction, and the side plates are provided with clearance holes for the fixing bolt to pass through.

[0015] As a further improvement of this utility model, the fixing bolts are divided into multiple groups corresponding to the number of the battery cell separator, each group is provided with two fixing bolts, and the two fixing bolts in each group are spaced apart in the vertical direction.

[0016] As a further improvement of this utility model, the battery cell separator is provided with a clearance groove for the fixing bolt to pass through.

[0017] The beneficial effects of this utility model are: the battery cell module installation structure of this utility model achieves comprehensive optimization of production, assembly process and structural performance through the battery cell separator of plastic parts. On the one hand, it greatly reduces the cost of parts and the difficulty of processing, and on the other hand, it reduces the difficulty of assembly and simplifies the installation process. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of the battery cell module installation structure of this utility model; Figure 2 This is a structural schematic diagram of the base plate, cell partition, and positioning block of the cell module mounting structure of this utility model; Figure 3 yes Figure 2 A schematic diagram of the structure with battery cell modules installed. Figure 4 This is a schematic diagram of the battery cell module mounting structure of this utility model without the fixing bolts installed; Figure 5 This is a partially exploded structural diagram of the battery cell module installation structure of this utility model. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] like Figures 1 to 5 As shown, the battery cell module installation structure 100 of this utility model includes a base plate 1, a plurality of battery cell partitions 2 fixedly disposed on the base plate 1 and spaced apart along the length direction, side plates 3 located on both sides of the battery cell along the width direction, and fixing bolts 4 for fixing the side plates 3 on both sides.

[0023] The cell module 200 is placed on the base plate 1 and located between two adjacent cell separators 2 along the length direction. The cell separator 2 is a plastic part.

[0024] The cell separator 2, as an injection-molded plastic part, has a simple structural design. This allows it to be rapidly molded in one step through injection molding, making the production process simple and efficient, which helps ensure the consistency of parts and achieve rapid production. The plastic part has good machinability, and pin holes or positioning pins for positioning can be easily and accurately molded on the cell separator 2.

[0025] The battery cell module mounting structure 100 also includes a plurality of positioning blocks 5 fixed on the base plate 1. The positioning block 5 has a first positioning pin 51 protruding outward, and the side plate 3 is provided with a first positioning hole for positioning and insertion of the first positioning pin 51.

[0026] Before the side plate 3 is finally tightened by the fixing bolts 4, the insertion and engagement of the first locating pin 51 with the first locating hole can quickly and accurately determine and constrain the planar position of the side plate 3 on the base plate 1. This effectively prevents the side plate 3 from shifting during the subsequent installation of the fixing bolts 4, ensures the alignment of all connecting holes, and lays a precise reference for the final tightening.

[0027] This pre-positioning mechanism greatly simplifies the operation for assembly workers. Side plate 3 no longer requires precise manual alignment; simply aligning the first positioning hole and fitting it into the first positioning pin 51 on the positioning block 5 achieves automatic alignment. This reduces the skill requirements for operators, decreases adjustment time, makes the assembly process smoother, and directly improves production efficiency.

[0028] Positioning block 5 is fixed to the base plate 1 as an independent fastening point, forming an additional connection and support with the side plate 3. This design anchors the side plate 3 more firmly to the base plate 1, enhancing the rigidity of the entire cell module mounting structure 100 in the width direction, and better resisting vibration and impact during transportation and use, thereby improving the overall structural stability and reliability.

[0029] The number of positioning blocks 5 is four, and the four positioning blocks 5 are arranged at the four corners of the base plate 1. In this embodiment, by symmetrically arranging the four positioning blocks 5 at the four corners of the base plate 1, a stable and reliable reference positioning system is constructed, thereby ensuring that the side plate 3 is subjected to uniform force and accurate positioning during installation, effectively enhancing the stability and torsional resistance of the overall structure. It should be noted that the positioning blocks 5 have a certain gap along the width direction from the side plate 3 of the base plate 1 to allow the base plate 1 to support the side plate 3.

[0030] The side plate 3 is provided with a second positioning pin protruding inward along the width direction, and the cell separator 2 is provided with a second positioning hole 21 for interlocking with the second positioning pin. By setting the second positioning pin and the second positioning hole 21, a precise lateral and longitudinal positioning reference is established between the side plate 3 and the cell separator 2, ensuring the relative positional accuracy between multiple cell separators 2, effectively preventing cumulative errors, and improving the overall alignment of the module. Secondly, this interlocking method achieves pre-fixation of components before the final fixing bolt 4, simplifying the assembly alignment operation and making the assembly process more convenient and reliable. Finally, the cooperation between the pin and the hole enhances the connection rigidity between the side plate 3 and the cell separator 2, connecting the originally relatively independent components into a more stable overall frame, thereby significantly improving the structural stability and impact resistance of the cell module mounting structure 100 in the width direction.

[0031] Multiple cell separators 2 are identical in size and shape. The cell separator 2 can be designed as a universal component, and complex shapes can be easily replicated using plastic injection molding, ensuring dimensional uniformity across multiple cell separators 2. This standardized design reduces the number of parts and simplifies material management, thereby significantly reducing material and mold costs.

[0032] The cell separator 2 is fixed to the base plate 1 by screws. The screws pass through the other side of the base plate 1 to fix the cell separator 2.

[0033] The side plate 3 is a sheet metal part. Sheet metal parts can be manufactured in large quantities efficiently through mature stamping, bending and other processes. They have a short production cycle and low cost, which meets the needs of large-scale industrial production. Secondly, in terms of structural performance, sheet metal parts have good strength and rigidity, which can provide solid lateral support and bearing for the battery cell module mounting structure 100, effectively ensuring the structural stability and safety of the battery cell module mounting structure 100 under vibration, impact and other working conditions.

[0034] The fixing bolt 4 passes through the two side plates 3 along the width direction, and the side plates 3 are provided with clearance holes 31 for the fixing bolt 4 to pass through.

[0035] The fixing bolts 4 are divided into multiple groups corresponding to the number of the battery cell separator 2. Each group has two fixing bolts 4, and the two fixing bolts 4 in each group are spaced apart in the vertical direction.

[0036] The cell separator 2 is provided with a relief groove 22 for the fixing bolt 4 to pass through.

[0037] The fixing bolts 4 penetrate through the two side plates 3 along the width direction, connecting and fastening the originally independent side plates 3 and multiple cell separators 2 into a complete rigid frame. This design integrates the various components into a unified force-bearing whole, significantly improving the structural rigidity of the cell module mounting structure 100 in the width direction and in terms of torsional deformation resistance, effectively coping with vibration and impact under complex working conditions.

[0038] The fixing bolts 4 are set in multiple groups corresponding to the number of cell separators 2, and are tightened at the position of each cell separator 2 to ensure that the tightening force is evenly distributed along the entire length of the module. Each group uses two fixing bolts 4 spaced apart in the vertical direction, which constitutes a stable two-point support, which can effectively resist the tendency of the side plate 3 to overturn or warp when under force, avoid stress concentration that may be caused by single-point fixing, and make the connection between the side plate 3 and the cell separator 2 more firm and reliable.

[0039] When installing the battery cell module 200, first provide a base plate 1, fix the positioning block 5 and the battery cell partition 2 on the base plate 1. In this embodiment, there are four battery cell partitions 2. Place the battery cell module 200 between two adjacent battery cell partitions 2, for a total of three rows, with three in each row. Place the side plate 3, and control the cooperation between the first positioning pin 51 and the first positioning hole, as well as the cooperation between the second positioning pin and the second positioning hole 21. Then tighten the fixing bolts 4 to complete the installation.

[0040] The battery cell module mounting structure 100 of this utility model achieves comprehensive optimization of manufacturing, assembly process and structural performance through the plastic battery cell separator 2. On the one hand, it greatly reduces the cost of parts and the difficulty of processing, and on the other hand, it reduces the difficulty of assembly and simplifies the installation process. By setting up a reference system formed by the positioning block 5 and the side plate 3, combined with the secondary positioning between the side plate 3 and the battery cell separator 2, a precise pre-positioning system is constructed, which makes the assembly process fast, accurate and reliable, and significantly improves efficiency.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A battery cell module mounting structure, characterized in that: The battery cell module mounting structure includes a base plate, a plurality of battery cell partitions fixedly disposed on the base plate and spaced apart along the length direction, side plates located on both sides of the battery cell along the width direction, and fixing bolts for fixing the side plates on both sides. The battery cell module is placed on the base plate and located between two adjacent battery cell partitions along the length direction. The battery cell partitions are plastic parts.

2. The cell module mounting structure according to claim 1, characterized in that: The battery cell module mounting structure also includes multiple positioning blocks fixed on the base plate. Each positioning block has a first positioning pin protruding outward, and the side plate is provided with a first positioning hole for positioning and insertion of the first positioning pin.

3. The cell module mounting structure according to claim 2, characterized in that: The number of positioning blocks is four, and the four positioning blocks are set at the four corners of the base plate.

4. The cell module mounting structure according to claim 1, characterized in that: The side plate is provided with a second positioning pin that protrudes inward along the width direction, and the cell separator is provided with a second positioning hole for insertion and engagement with the second positioning pin.

5. The cell module mounting structure according to claim 1, characterized in that: The separators of the multiple battery cells are all the same size and shape.

6. The cell module mounting structure according to claim 1, characterized in that: The cell separator is fixed to the base plate with screws.

7. The cell module mounting structure according to claim 1, characterized in that: The side panel is a sheet metal part.

8. The cell module mounting structure according to claim 1, characterized in that: The fixing bolt passes through both side plates along the width direction, and the side plates are provided with clearance holes for the fixing bolt to pass through.

9. The cell module mounting structure according to claim 8, characterized in that: The fixing bolts are divided into multiple groups corresponding to the number of the battery cell separator. Each group has two fixing bolts, and the two fixing bolts in each group are spaced apart in the vertical direction.

10. The cell module mounting structure according to claim 9, characterized in that: The cell separator is provided with a clearance groove for the fixing bolt to pass through.

Images