Battery PACK module and assembling device thereof

Abstract

The utility model discloses a battery PACK module and an assembling device thereof, and relates to the technical field of power batteries and power battery production equipment. The battery PACK module comprises a battery cell array, an end plate, a supporting plate and a plurality of hoop strips, the battery cell array comprises a plurality of battery cells and a plurality of insulating layers which are alternately arranged at intervals along a first direction; the end plates are located on the two sides of the battery cell array in the first direction, and the bottoms of the end plates are at least partially higher than the bottoms of the battery cells in the second direction; the supporting plate is positioned between the battery cell array and the end plate along the first direction; and the plurality of strakes are arranged at intervals along the second direction and are sleeved on the peripheral sides of the battery cell array and the end plate. By adopting the technology provided by the utility model, the positioning assembly of the battery PACK module can be realized through a simple assembly device, and the production cost of the battery PACK module is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries and power battery production equipment, and in particular to a battery PACK module and an assembly device thereof. Background Art

[0002] Battery packaging refers to the combination of multiple battery cells in series and parallel, along with the integration of necessary management systems and structural components, to form a complete battery system. Battery cells are typically assembled into battery modules for easier modular management and maintenance.

[0003] However, during the assembly of battery cells into battery modules, it is necessary to ensure not only the consistency of the battery cells in terms of capacity, internal resistance, voltage, and chemical properties, but also the accuracy of the positioning of the battery cells and the stability of the assembled battery module. Therefore, battery module assembly equipment requires high-precision positioning devices, which leads to high production and manufacturing costs. Utility Model Content

[0004] The utility model provides a battery PACK module and an assembly device for the battery PACK module, so as to solve the problem in the prior art that when assembling and positioning the battery PACK module, a high-precision positioning device is required, which leads to high production and manufacturing costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is to provide a battery PACK module, which includes: a battery cell array, an end plate, a support plate and a plurality of hoop bars.

[0006] The battery cell array includes a plurality of battery cells and a plurality of insulating layers that are alternately arranged along a first direction; the end plates are located on both sides of the battery cell array along the first direction, wherein the bottom of the end plates is at least partially higher than the bottom of the battery cells along the second direction; the support plate is located between the battery cell array and the end plates along the first direction; a plurality of the hoop bars are arranged at intervals along the second direction and are sleeved on the outer peripheral sides of the battery cell array and the end plates.

[0007] The technical solution provided by this utility model has the following beneficial effects compared with the prior art:

[0008] The battery PACK module is supported by setting end plates on both sides of the battery cell array, and a support plate is added between the end plate and the battery cell array to provide additional mechanical support for the battery cell array to reduce vibration and impact of the battery cell array during transportation, assembly and use.

[0009] The cells and insulation layers in the cell array are arranged alternately, effectively isolating the cells and preventing short circuits. Multiple clamps clamp the end plates and cell array structure, facilitating assembly into a modular whole for transport or assembly. This allows for adapting to varying cell counts, thus meeting the voltage and capacity requirements of the battery pack module.

[0010] In addition, the bottom of the end plate is at least partially higher than the bottom of the battery cell. During the subsequent assembly process, the battery cell array can be pressed during the installation of the supporting end plate to prevent it from loosening.

[0011] In some embodiments, the battery PACK module is further provided with an insulating assembly, which includes an insulating plate and an insulating strip located at the bottom of the battery cell array along the second direction, wherein the insulating strip is located on both sides of the battery cell array along the third direction and is bent toward the battery cell array to at least partially overlap with the insulating plate.

[0012] With the above technical solution, insulating plates and insulating strips are used to prevent additional electrical contact between the battery PACK module and other components. The inward bending design of the insulating strips can improve the structural stability of the battery PACK module and effectively reduce the phenomenon of insulation failure.

[0013] In some embodiments, the present application also provides an assembly device for a battery PACK module, which is used to assemble the above-mentioned battery PACK module, and includes: a base, an end plate spacer, a reference bar and a clamping assembly.

[0014] The base is provided with a module gasket groove for carrying the battery cell array, and the module gasket groove extends along a first direction; the end plate gaskets are arranged in the module gasket groove at intervals along the first direction and are located on both sides of the battery cell array.

[0015] The reference bar is located on one side of the module gasket along the third direction, and is used to abut against the battery cell array along the third direction; the clamping assembly includes a plurality of first clamping blocks arranged at intervals along the first direction, wherein the plurality of first clamping blocks are located on the side of the module gasket away from the reference bar along the third direction, and are used to press the battery cell array.

[0016] Using this technical solution, the battery pack module is securely placed within the base's operating area by placing the cell array in the module groove and the end plates on the end plate pads on either side. Because the bottom of the end plates is higher than the bottom of the battery cells along the second direction, the end plate pads within the module groove can clamp the cell array in opposite directions, maintaining structural stability during assembly and preventing cell displacement.

[0017] In addition, reference bars and multiple first compression blocks are provided on both sides of the base along the third direction to automatically compress the battery cell array. The above-mentioned battery pack module has a simple structure and a simple positioning structure of the assembly device, which ensures accurate assembly of the battery pack module while effectively reducing production costs. There is no restriction on the specifications of the battery cell module, making it adaptable to battery cell arrays of different sizes and shapes.

[0018] In some embodiments, the end plate gasket includes a first end plate gasket and a second end plate gasket, wherein the first end plate gasket is movably embedded in the module gasket groove and can be displaced toward the second end plate gasket along the first direction.

[0019] With the above technical solution, the first end plate gasket is movable, so as to be adaptable to different numbers of battery cells, wherein the second end plate gasket is fixedly arranged so as to be applicable to battery PACK modules of different lengths while ensuring the clamping force.

[0020] Furthermore, a second pressing block is provided on a side of the second end plate gasket block away from the module gasket groove along the first direction, and the second pressing block is used to press the end plate.

[0021] In some embodiments, the base is further provided with a plurality of slide grooves extending along the third direction, wherein the first pressing block is embedded in the slide grooves.

[0022] By adopting the above technical solution, the first pressing block is arranged in the slide groove so that it can be displaced along the slide groove, thereby being able to adapt to the pressing and fixing of battery PACK modules of different widths.

[0023] In some embodiments, a reference bracket is further provided at the bottom of the reference bar along the second direction.

[0024] With the above technical solution, a reference bracket is provided below the reference bar to elevate the reference bar, so that the reference bar can be located in the middle of the battery PACK module to press against it.

[0025] In some embodiments, the base is further provided with a plurality of handles, and the plurality of handles are symmetrically arranged on both sides of the module gasket along the third direction.

[0026] By adopting the above technical solution, a handle is provided on the base, so that the battery PACK module can be transported as a whole when the battery PACK module is fixed on the base.

[0027] In some embodiments, reinforcing plates are further provided on both sides of the base along the first direction, wherein the second pressing block fixes the reinforcing plates along the second direction.

[0028] By adopting the above technical solution, reinforcing plates are provided on both sides of the base to enhance the structural strength of the assembly device and serve as positioning marks on the base to facilitate the correct placement of other components such as battery cells.

[0029] Furthermore, a plurality of buffer pads are provided on a side of the reinforcing plate away from the module pad groove along the first direction, wherein the buffer pads at least partially protrude from an outer edge of the base.

[0030] By adopting the above technical solution, the buffer pad can absorb the impact force generated by the vibration, bump or vibration of the assembly device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of a battery PACK module provided by the present invention;

[0033] Figure 2 This is an enlarged view of the partial structure of an embodiment of a battery PACK module provided by the present utility model;

[0034] Figure 3 This is a schematic diagram of the application structure of an embodiment of an assembly device for a battery PACK module provided by the present invention;

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of an embodiment of an assembly device for a battery PACK module provided by the present invention;

[0036] Figure 5 This is a side view of an embodiment of an assembly device for a battery PACK module provided by the present invention;

[0037] Figure 6 It is a top view of an embodiment of an assembly device for a battery PACK module provided by the present invention.

[0038] In the picture:

[0039] 1. Battery pack module; 10. Cell array; 100. Cell; 101. Insulation layer; 11. End plate; 12. Support plate; 13. Hoop; 14. Insulation assembly; 140. Insulation plate; 141. Insulation strip;

[0040] 2. Assembly device; 20. Base; 200. Module gasket; 201. Slide; 202. Handle; 203. Reinforcement plate; 204. Buffer pad; 21. End plate pad; 210. First end plate pad; 211. Second end plate pad; 22. Reference bar; 220. Reference bracket; 23. Clamping assembly; 230. First clamping block; 231. Second clamping block. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In order to facilitate the subsequent description, before describing the specific structure of the battery PACK module and its assembly device, this application first combines Figure 1 A first direction (X), a second direction (Z), and a third direction (Y) are defined. The first direction is the length of the battery pack module when it is normally placed, such as the X direction; the second direction is the height of the battery pack module when it is normally placed, such as the Z direction; and the third direction is the width of the battery pack module when it is normally placed, such as the Y direction. In this application, the first direction (X), the second direction (Z), and the third direction (Y) are perpendicular to each other.

[0043] It can be understood that the mutual perpendicularity in this application is not absolute perpendicularity. Approximate perpendicularity caused by processing errors and assembly errors (for example, the angle between two structural features is 89.9°) is also within the range of mutual perpendicularity in this application.

[0044] See also Figure 1 As shown, Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a battery PACK module 1 provided in the present application is shown, wherein part of the battery cells 100 are hidden.

[0045] In some embodiments, the battery PACK module 1 includes: a battery cell array 10 , an end plate 11 , a support plate 12 and a plurality of hoop bars 13 .

[0046] The battery cell array 10 includes a plurality of battery cells 100 and a plurality of insulating layers 101 that are alternately arranged along a first direction; the end plates 11 are located on both sides of the battery cell array 10 along the first direction, wherein the bottom of the end plates 11 is at least partially higher than the bottom of the battery cells 100 along the second direction; the support plate 12 is located between the battery cell array 10 and the end plates 11 along the first direction; and a plurality of hoop bars 13 are arranged at intervals along the second direction and are sleeved on the outer peripheral sides of the battery cell array 10 and the end plates 11.

[0047] In the embodiment of the present application, the battery cells 100 and the insulating layer 101 in the battery cell array 10 are alternately arranged, thereby effectively isolating the individual battery cells 100 and preventing the battery cells 100 from short-circuiting. The battery PACK module 1 is supported by arranging end plates 11 on both sides of the battery cell array 10, and a support plate 12 is further provided between the end plate 11 and the battery cell array 10, so that it can provide additional mechanical support to the battery cell array 10 to reduce vibration and impact of the battery cell array 10 during transportation, assembly and use. Among them, the present application does not limit the number of battery cells, for example, it can be set to 13 or 15 cells at intervals along the first direction.

[0048] Exemplarily, the insulating layer 101 is an aerogel layer, which has excellent thermal insulation properties and low density characteristics when used in the battery cell array 10; the support plate 12 can be an epoxy resin plate, which has high mechanical strength and rigidity, thereby effectively supporting and fixing the battery cells 100 in the battery PACK module 1.

[0049] Among them, multiple hoops 13 can also use steel strips to tighten the above-mentioned end plate 11 and battery cell array 10 structure, which is convenient for assembly into a modular whole for transportation or assembly, and can adapt to different numbers of battery cells 100 to meet the voltage and capacity requirements of the battery PACK module 1.

[0050] In addition, the bottom of the end plate 11 is at least partially higher than the bottom of the battery cell 100 . During the subsequent assembly process, the battery cell array 10 can be pressed during the installation of the end plate 11 to prevent it from loosening.

[0051] See also Figure 2 As shown, Figure 2 An enlarged view of the local structure of an embodiment of a battery PACK module 1 provided in the present application is shown.

[0052] In some embodiments, the battery PACK module 1 is further provided with an insulating assembly 14, which includes an insulating plate 140 and an insulating strip 141 located at the bottom of the battery cell array 10 along the second direction, wherein the insulating strip 141 is located on both sides of the battery cell array 10 along the third direction and is bent toward the battery cell array 10 to at least partially overlap with the insulating plate 140.

[0053] In the embodiment of this application, Figure 2 As shown, Figure 2 The shaded portion is the overlapping portion of the insulating plate 140 and the insulating strip 141 . This inward bending design can improve the structural stability of the battery PACK module 1 and effectively reduce the phenomenon of insulation failure.

[0054] See also Figure 3 and Figure 4 As shown, Figure 3 A schematic diagram of the application structure of an embodiment of an assembly device 2 for a battery PACK module 1 provided in the present application is shown; Figure 4 A schematic three-dimensional structure diagram of an embodiment of an assembly device 2 for a battery PACK module 1 provided in the present application is shown.

[0055] In some embodiments, the present application also provides an assembly device 2 for a battery PACK module 1, which is used to assemble the above-mentioned battery PACK module 1, and includes: a base 20, an end plate pad 21, a reference bar 22 and a clamping assembly 23.

[0056] The base 20 is provided with a module gasket groove 200 for supporting the battery cell array 10 , and the module gasket groove 200 extends along a first direction; the end plate gaskets 21 are arranged in the module gasket groove 200 at intervals along the first direction and are located on both sides of the battery cell array 10 .

[0057] The reference bar 22 is located on one side of the module gasket 200 along the third direction, and is used to abut against the battery cell array 10 along the third direction; the clamping assembly 23 includes a plurality of first clamping blocks 230 arranged at intervals along the first direction, wherein the plurality of first clamping blocks 230 are located on the side of the module gasket 200 away from the reference bar 22 along the third direction, and are used to press the battery cell array 10.

[0058] In the embodiment of the present application, the battery pack module 1 is fixedly placed within the operating area of ​​the base 20 by placing the cell array 10 on the module gasket groove 200 and the end plate 11 on the end plate gasket blocks 21 on both sides. Since the bottom of the end plate 11 is higher than the bottom of the battery cell 100 along the second direction, the end plate gasket blocks 21 located within the module gasket groove 200 can clamp the cell array 10 in opposite directions to maintain its structural stability during assembly and prevent the cell 100 from shifting. For example, the module gasket groove 200 comprises two module gasket strips spaced apart along the third direction.

[0059] In addition, the base 20 is provided with reference bars 22 and a plurality of first compression blocks 230 on both sides along the third direction to automatically compress the battery cell array 10. The simple structure of the battery pack module 1 and the simple positioning structure of the assembly device 2 ensure accurate assembly of the battery pack module 1 while effectively reducing production costs. Furthermore, there are no restrictions on the specifications of the battery cell 100 module, making it suitable for battery cell arrays 10 of different sizes and shapes.

[0060] In some embodiments, the base 20 is further provided with a plurality of handles 202 , which are symmetrically arranged on both sides of the module gasket 200 along the third direction, so as to facilitate the integral transportation of the battery PACK module 1 when the battery PACK module 1 is fixed by the base 20 .

[0061] Combine Figure 5 As shown, Figure 5 A side view of an embodiment of an assembly device 2 for a battery PACK module 1 provided in the present application is shown.

[0062] In some embodiments, the end plate gasket 21 includes a first end plate gasket 210 and a second end plate gasket 211 , wherein the first end plate gasket 210 is movably embedded in the module gasket groove 200 and can be displaced along a first direction toward the second end plate gasket 211 .

[0063] In the embodiment of the present application, the first end plate pad 210 is movable, so as to be adaptable to different numbers of battery cells 100, wherein the second end plate pad 211 is fixedly arranged so as to be applicable to battery PACK modules 1 of different lengths while ensuring the pressing force. Exemplarily, the second end plate pad 211 is located on the side of the base 20 and is fixedly arranged. The second end plate pad 211 presses the battery PACK module 1 at the bottom of the battery PACK module 1, and a second pressing block 231 is provided in the middle of the battery PACK module 1 to press the battery PACK module 1, thereby limiting the battery PACK module 1 in the length direction.

[0064] In some embodiments, the base 20 is further provided with a plurality of slide grooves 201 extending along the third direction, wherein the first pressing block 230 is embedded in the slide grooves 201 .

[0065] In the embodiment of the present application, the first pressing block 230 is arranged in the slide groove 201 so that it can move along the slide groove 201, thereby being able to adapt to the pressing and fixing of battery PACK modules 1 of different widths. Figure 4 As shown, the first pressing block 230 further includes a bottom fixed plate and a movable slider, so that it can be displaced along the slide groove 201 under the drive of an external driving device, and press the battery PACK module 1 when it reaches the set position.

[0066] In some embodiments, a reference support 220 is further provided at the bottom of the reference bar 22 along the second direction to elevate the reference bar 22 so that the reference bar 22 can be positioned in the middle of the battery pack module 1 to press against it. The reference bar 22 thus serves as a length reference for the battery pack module 1 and, together with the first pressing block 230, limits the width of the battery pack module 1.

[0067] See also Figure 6 As shown, Figure 6 A top view of an embodiment of an assembly device 2 for a battery PACK module 1 provided in the present application is shown.

[0068] In some embodiments, the base 20 is further provided with reinforcing plates 203 on both sides along the first direction, wherein the second pressing block 231 is fixed to the reinforcing plates 203 along the second direction.

[0069] In the embodiment of the present application, reinforcing plates 203 are provided on both sides of the base 20 to enhance the structural strength of the assembly device 2 and serve as positioning marks on the base 20 to facilitate the correct placement of other components such as the battery cell 100.

[0070] A plurality of cushioning blocks 204 are also provided on the side of the reinforcing plate 203, away from the module groove 200, along the first direction. These cushioning blocks 204 at least partially protrude beyond the outer edge of the base 20. This helps absorb impact forces generated by vibration, bumps, or other shocks during transport of the assembly device 2. For example, the base 20 is also provided with a plurality of screw holes to facilitate adaptive adjustment of the positions of various components.

[0071] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, should be included in the protection scope of the present invention.

Claims

1. A battery PACK module, characterized in that: include: A battery cell array, the battery cell array comprising a plurality of battery cells and a plurality of insulating layers alternately arranged along a first direction; end plates, the end plates being located on both sides of the battery cell array along the first direction, wherein the bottoms of the end plates are at least partially higher than the bottoms of the battery cells along the second direction; a support plate, the support plate being located between the battery cell array and the end plate along the first direction; A plurality of hoop bars are arranged at intervals along the second direction and sleeved on the outer periphery of the battery cell array and the end plate.

2. The battery pack module according to claim 1, characterized in that: The battery PACK module is also provided with an insulating component, which includes an insulating plate and an insulating strip located at the bottom of the battery cell array along the second direction, wherein the insulating strip is located on both sides of the battery cell array along the third direction and is bent toward the battery cell array to at least partially overlap with the insulating plate.

3. A battery pack module assembly device, characterized in that: A battery pack module for assembling any one of claims 1 to 2, comprising: A base, wherein the base is provided with a module gasket groove for supporting the battery cell array, and the module gasket groove extends along a first direction; End plate gaskets, the end plate gaskets are arranged in the module gasket grooves at intervals along the first direction and are located on both sides of the battery cell array; a reference bar, the reference bar being located on one side of the module gasket along the third direction and being configured to abut against the battery cell array along the third direction; A clamping assembly includes a plurality of first clamping blocks spaced apart along a first direction, wherein the plurality of first clamping blocks are located along the third direction on a side of the module gasket away from the reference bar and are used to press the battery cell array.

4. The battery pack module assembly device according to claim 3, characterized in that: The end plate pad includes a first end plate pad and a second end plate pad, wherein the first end plate pad is movably embedded in the module pad groove and can be displaced toward the second end plate pad along the first direction.

5. The assembly device of the battery pack module according to claim 4, characterized in that: A second pressing block is further provided on a side of the second end plate pad block away from the module pad groove along the first direction, and the second pressing block is used to press the end plate.

6. The battery pack module assembly device according to claim 3, characterized in that: The base is further provided with a plurality of slide grooves extending along the third direction, wherein the first pressing block is embedded in the slide grooves.

7. The battery pack module assembly device according to claim 3, characterized in that: A reference bracket is further provided at the bottom of the reference bar along the second direction.

8. The battery pack module assembly device according to claim 3, characterized in that: The base is further provided with a plurality of handles, and the plurality of handles are symmetrically arranged on both sides of the module pad groove along the third direction.

9. The battery pack module assembly device according to any one of claims 4 to 8, characterized in that: The base is further provided with reinforcement plates on both sides along the first direction, wherein the second pressing block is fixed to the reinforcement plates along the second direction.

10. The battery pack module assembly device according to claim 9, characterized in that: A plurality of buffer pads are further provided on a side of the reinforcing plate away from the module pad groove along the first direction, wherein the buffer pads at least partially protrude from the outer edge of the base.

Images