Multi-battery energy storage module

Abstract

The utility model discloses a multi-battery energy storage module, which includes: a plurality of battery groups, a first bracket, a second bracket, two first connecting pieces and a plurality of second connecting pieces, the plurality of battery groups are arranged along a first direction, each battery group includes a plurality of batteries arranged in a second direction, and the same electrodes of the batteries of two adjacent battery groups are arranged in opposite directions; the first bracket and the second bracket are detachably assembled with each other, the first bracket and the second bracket are provided with a plurality of first and second grooves, the two ends of the same battery are respectively plugged into the first groove and the second groove, the first bracket and the second bracket are provided with a first through hole; the two first connecting pieces are respectively electrically connected to the batteries of the two outermost battery groups through the first through hole; each second connecting piece is electrically connected to the batteries of the two adjacent battery groups through the first through hole. The utility model has a simple assembly process for the multi-battery energy storage module, and the battery series structure is stable, which is conducive to reducing labor and material costs and improving the performance and safety of the energy storage module.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-battery energy storage, in particular to a multi-battery energy storage module. Background Art

[0002] Most of the existing energy storage product modules are assembled by locking with screws on four sides of sheet metal (two sheet metal side panels are arranged on the left and right sides and two sheet metal end panels are arranged on the front and rear ends), and sampling lines need to be welded at the upper bus bar. After the sampling lines are welded, manual operations such as wiring harness arrangement, acetic acid tape wrapping, and binding tape are required to complete the assembly of the energy storage product module. The assembly process of such energy storage product modules is complicated, and the finished module is heavy and large in size, resulting in high material and labor costs. Moreover, the electrical connection structure of such energy storage product modules is unstable, and it is impossible to ensure that the batteries in the module are stably connected in series, which makes it easy for the energy storage product modules to be disconnected and fail. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-battery energy storage module with a simple assembly process, small module volume and weight, and a stable battery series structure, which is conducive to reducing labor and material costs and improving the performance and safety of the energy storage module.

[0004] In order to achieve the above object, the utility model discloses a multi-battery energy storage module, which includes:

[0005] A plurality of battery groups, wherein the plurality of battery groups are arranged along a first direction, each of the battery groups comprises a plurality of batteries arranged along a second direction perpendicular to the first direction, and the same electrodes of the batteries of two adjacent battery groups are arranged in opposite directions;

[0006] A first bracket and a second bracket, the first bracket and the second bracket are detachably assembled with each other, the first bracket is provided with a plurality of first grooves corresponding to the plurality of batteries, the second bracket is provided with a plurality of second grooves corresponding to the plurality of batteries, two ends of the same battery are respectively inserted into the first groove and the second groove, and the first bracket and the second bracket are provided with a first through hole communicating with the corresponding first groove or the second groove;

[0007] Two first connecting pieces, one of which is disposed on the first bracket, and the other of which is disposed on the first bracket or the second bracket, and the two first connecting pieces are electrically connected to the batteries of the two outermost battery packs respectively through the first through holes;

[0008] A plurality of second connecting pieces, a portion of which is disposed on the first bracket, and another portion of which is disposed on the second bracket, and each of which is electrically connected to batteries of two adjacent battery packs through the first through hole.

[0009] Optionally, two adjacent batteries in each of the battery groups are staggered along the second direction, and the same electrodes of all batteries in each of the battery groups are arranged in the same direction.

[0010] Optionally, the multi-battery energy storage module further includes at least one heating film, and the heating film is disposed between two adjacent batteries of the plurality of battery packs.

[0011] Optionally, the first connecting sheet and the second connecting sheet include a sheet body and multiple connecting parts, the sheet body is provided with multiple second through holes corresponding to multiple batteries, the multiple connecting parts are provided corresponding to multiple second through holes, and part of the edges of the connecting parts are connected to the side walls of the second through holes.

[0012] Optionally, the first bracket and the second bracket each include a supporting portion and two assembling portions, the supporting portion extends along a first direction and is correspondingly provided with the first groove or the second groove, the two assembling portions are provided on both sides of the supporting portion along the first direction, the assembling portion of one of the first bracket and the second bracket is provided with a snap protrusion at one end away from the supporting portion, and the other is provided with a snap hole, and when the first bracket and the second bracket are assembled, the snap protrusion is snapped into the snap hole.

[0013] Optionally, the support portion of one of the first bracket and the second bracket is provided with connecting protrusions on two outer side walls along the second direction, and the support portion of the other bracket is provided with connecting extensions on two outer side walls corresponding to the connecting protrusions, and the connecting extensions are provided with connecting holes, and when the first bracket and the second bracket are assembled, the connecting protrusions are snapped into the connecting holes.

[0014] Optionally, a positioning hole is provided on an end surface of the assembling portion of the first bracket and / or the second bracket close to one end of the supporting portion.

[0015] Optionally, an outer side wall of the first bracket and the second bracket are both provided with a plurality of wire clamping grooves extending along the first direction.

[0016] Optionally, the outer walls of the first bracket and the second bracket are provided with wire fixings corresponding to the wire clamping groove, and first mounting holes are provided at both ends of the wire fixings. The first bracket and the second bracket are provided with second mounting holes corresponding to the first mounting holes, and the screws pass through the first mounting holes and are threadedly connected to the second mounting holes.

[0017] Optionally, end surfaces at both ends of the first bracket and / or the second bracket are provided with transport grooves with rectangular openings.

[0018] The utility model is provided with a first bracket and a second bracket to assemble and fix multiple battery packs arranged in a first direction, the same electrodes of the batteries of two adjacent battery packs are arranged in opposite directions, the first bracket and the second bracket are respectively provided with a first groove and a second groove for plugging the two ends of the same battery, and then they are detachably assembled with each other to fix the multiple battery packs, the first bracket and the second bracket are also provided with two first connecting plates and a plurality of second connecting plates, the two first connecting plates are respectively connected to the batteries of the two outermost battery packs, and the plurality of second connecting plates electrically connect the batteries of the two adjacent battery packs, the structure and assembly process of the above-mentioned multi-battery energy storage module are simple, the module volume and weight are small, and the battery series structure is stable, which is conducive to reducing labor and material costs and improving the performance and safety of the energy storage module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of a multi-battery energy storage module according to an embodiment of the utility model.

[0020] Figure 2 This is a diagram of the exploded structure of a multi-battery energy storage module according to an embodiment of the present utility model.

[0021] Figure 3 This is a three-dimensional structural diagram of a multi-battery energy storage module in an embodiment of the utility model with part of the second connecting piece omitted. DETAILED DESCRIPTION

[0022] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0023] See also Figures 1 to 3 The utility model discloses a multi-battery energy storage module, which includes:

[0024] A plurality of battery groups 1, wherein the plurality of battery groups 1 are arranged along a first direction X, each battery group 1 comprises a plurality of batteries 100 arranged along a second direction Y perpendicular to the first direction, and the same electrodes of the batteries 100 of two adjacent battery groups 1 are arranged in opposite directions;

[0025] A first bracket 21 and a second bracket 22, the first bracket 21 and the second bracket 22 are detachably assembled with each other, the first bracket 21 is provided with a plurality of first grooves 211 corresponding to the plurality of batteries 100, the second bracket 22 is provided with a plurality of second grooves 221 corresponding to the plurality of batteries 100, two ends of the same battery 100 are respectively inserted into the first groove 211 and the second groove 221, and the first bracket 21 and the second bracket 22 are provided with a first through hole 23 communicating with the corresponding first groove 211 or the second groove 221;

[0026] Two first connecting pieces 31, one first connecting piece 31 is disposed on the first bracket 21, and the other first connecting piece 31 is disposed on the first bracket 21 or the second bracket 22, and the two first connecting pieces 31 are electrically connected to the batteries 100 of the two outermost battery packs 1 through the first through holes 23 respectively;

[0027] A plurality of second connecting pieces 32 are provided, some of which are provided on the first bracket 21 , and the other second connecting pieces 32 are provided on the second bracket 22 . Each second connecting piece 32 is electrically connected to the batteries 100 of two adjacent battery packs 1 through the first through hole 23 .

[0028] The utility model is provided with a first bracket 21 and a second bracket 22 to assemble and fix multiple battery packs 1 arranged along a first direction, and the same electrodes of the batteries 100 of two adjacent battery packs 1 are arranged in opposite directions. The first bracket 21 and the second bracket 22 are respectively provided with a first groove 211 and a second groove 221 for the two ends of the same battery 100 to be plugged in, and then they can be detachably assembled with each other to fix the multiple battery packs 1. The first bracket 21 and the second bracket 22 are also provided with two first connecting pieces 31 and a plurality of second connecting pieces 32. The two first connecting pieces 31 are respectively connected to the batteries 100 of the two outermost battery packs 1, and the plurality of second connecting pieces 32 electrically connect the batteries 100 of the two adjacent battery packs 1. The structure and assembly process of the above-mentioned multi-battery energy storage module are simple, the module volume and weight are small, and the battery 100 series structure is stable, which is conducive to reducing labor and material costs and improving the performance and safety of the energy storage module.

[0029] See also Figures 1 to 3 Two adjacent batteries 100 in each battery pack 1 are staggered along the second direction, and the same electrodes of all batteries 100 in each battery pack 1 are arranged in the same direction, which is beneficial to improving the compactness of the structural arrangement of the battery pack 1 and reducing the volume of the module.

[0030] Specifically, in the present embodiment, the multi-battery energy storage module is provided with an even number of battery groups 1, two first connecting plates 31 are both arranged on the first bracket 21 and on both sides along the first direction, one first connecting plate 31 is connected to the positive electrode of the battery 100 of an outermost battery group 1, the other first connecting plate 31 is connected to the negative electrode of the battery 100 of the other outermost battery group 1, and the second connecting plate 32 is connected to the positive electrode of the battery 100 of one battery group 1 and the negative electrode of the battery 100 of the other battery group 1 in two adjacent battery groups 1, so as to realize the series connection of multiple battery groups 1 through the first connecting plate 31 and the second connecting plate 32, but is not limited to this.

[0031] See also Figures 1 to 3 The multi-battery energy storage module further includes at least one heating film 4 , and the heating film 4 is disposed between two adjacent batteries 100 of the plurality of battery groups 1 .

[0032] Specifically, in this embodiment, the heating film 4 extends along the first direction and is wavy to facilitate adhesion to the side wall of the battery 100. The heating film 4 can heat the battery 100 to support its normal operation under ultra-low temperature conditions. Each battery pack 1 is provided with four batteries 100, and the heating film 4 is passed between the first battery 101 and the second battery 102, and between the third battery 103 and the fourth battery 104, but is not limited to this.

[0033] See also Figures 1 to 3 The first connecting sheet 31 and the second connecting sheet 32 ​​include a sheet body 33 and a plurality of connecting portions 34. The sheet body 33 is provided with a plurality of second through holes 331 corresponding to the plurality of batteries 100. The plurality of connecting portions 34 are provided corresponding to the plurality of second through holes 331. Part of the edge of the connecting portion 34 is connected to the side wall of the second through hole 331, which is conducive to a more stable connection between each battery pack 1 and between each battery 100.

[0034] Specifically, in the present embodiment, each battery pack 1 is provided with four batteries 100, and the first connecting sheet 31 is provided with four connecting portions 34 corresponding to the batteries 100 of one battery pack 1, and two adjacent connecting portions 34 are staggered corresponding to the batteries 100 of the same battery pack 1, and the shapes on both sides of the sheet body 33 thereof are respectively arranged to correspond to the staggered arrangement of the batteries 100 of one battery pack 1 and the steps formed by the supporting portion 24 and the assembling portion 25; and, the second connecting sheet 32 ​​is provided with eight connecting portions 34 corresponding to the batteries 100 of two adjacent battery packs 1, and the shapes on both sides of the sheet body 33 thereof are arranged to correspond to the staggered arrangement of the batteries 100 of two battery packs 1.

[0035] Specifically, in the present embodiment, the first connecting piece 31 and the second connecting piece 32 are modular nickel strips, and the sheet body 33 of the first connecting piece 31 and the second connecting piece 32 are installed on the first bracket 21 and the second bracket 22, and each connecting portion 34 is close to the electrode end of the battery 100 through its edge connected to the side wall of the sheet body 33, so that each connecting portion 34 can extend into the first through hole 23 of the first bracket 21 or the first through hole 23 of the second bracket 22, contact the end surface of the electrode end of the battery pack 1, and be fixedly connected to the electrode end of the battery 100 by spot welding, but is not limited to this.

[0036] See also Figures 1 to 3 The first bracket 21 and the second bracket 22 both include a supporting portion 24 and two assembling portions 25. The supporting portion 24 extends along the first direction and is correspondingly provided with a first groove 211 or a second groove 221. The two assembling portions 25 are provided on both sides of the supporting portion 24 along the first direction. A snap protrusion 26 is provided at one end of the assembling portion 25 of the first bracket 21 and the second bracket 22 away from the supporting portion 24, and a snap hole 27 is provided at the other end. When the first bracket 21 and the second bracket 22 are assembled, the snap protrusion 26 is snapped into the snap hole 27.

[0037] Specifically, in this embodiment, the first bracket 21 and the second bracket 22 are plastic brackets, which are arranged vertically to fix the two ends of the battery 100, and are assembled and connected by snapping the buckle protrusion 26 and the buckle hole 27. The installation is convenient, the process is simple and easy to operate, no screws are required, and less materials are required, but it is not limited to this.

[0038] Specifically, in this embodiment, the assembly portion 25 and the support portion 24 form a step difference, and the ends of the assembly portion 25 of the first bracket 21 and the assembly portion 25 of the second bracket 22 that are close to each other are respectively provided with a snap-fitting protrusion 251 and a snap-fitting groove 252, the snap-fitting protrusion 251 is provided with a snap-fitting hole 27, and the snap-fitting groove 252 is provided with a snap-fitting protrusion 26, when the snap-fitting protrusion 251 is inserted into the snap-fitting groove 252, the snap-fitting protrusion 26 is snap-fitted with the snap-fitting hole 27, but it is not limited to this.

[0039] Optionally, the support portion 24 of one of the first bracket 21 and the second bracket 22 is provided with connecting protrusions 241 on two outer side walls along the second direction, and the support portion 24 of the other is provided with connecting extensions 242 on two outer side walls corresponding to the connecting protrusions 241, and the connecting extensions 242 are provided with connecting holes 2421. When the first bracket 21 and the second bracket 22 are assembled, the connecting protrusions 241 are snapped into the connecting holes 2421, which is beneficial to improving the connection stability of the first bracket 21 and the second bracket 22.

[0040] Specifically, in this embodiment, the first bracket 21 and the second bracket 22 are provided with mutually close extension portions 28 at the middle position of the two outer side walls along the second direction, the connecting extension portion 242 is provided in the extension portion 28 of the first bracket 21, and the connecting protrusion 241 is provided in the extension portion 28 of the second bracket 22, but is not limited thereto.

[0041] See also Figures 1 to 3 A positioning hole 253 is provided on an end surface of the assembling portion 25 of the first bracket 21 and / or the second bracket 22 close to the supporting portion 24 .

[0042] Specifically, in the present embodiment, bolt holes 254 are provided on both sides of the end faces of the assembly portion 25 of the first bracket 21 and the second bracket 22, and a positioning hole 253 for guidance is provided in the middle position of the end face, so as to facilitate accurate positioning when the module is blindly installed into the box, and ensure that the bolts are aligned with the nuts through the bolt holes 254, so that the installation is convenient and the assembly is firm, and it is avoided that there is a need to set an overly large bolt hole 254 in the box or to move the module back and forth in the box to help align the bolt with the bolt hole 254, and it is also beneficial to increase the crimping area of ​​the bolt head and reduce the risk of loosening, but it is not limited to this.

[0043] See also Figures 1 to 3An outer side wall of the first bracket 21 and the second bracket 22 are both provided with a plurality of wire clamping grooves 29 extending along the first direction.

[0044] Specifically, in this embodiment, a plurality of sampling lines are welded to the first connecting piece 31 and the second connecting piece 32 respectively, and then the welded sampling lines are sequentially loaded into the wire clamping groove 29 for fixing, thereby completing the wiring harness arrangement, and converging at the ends of the first bracket 21 and the second bracket 22. The assembly process is simple, which is conducive to avoiding the need to manually wrap the sampling lines with acetate cloth, tie bands, etc. to reduce costs.

[0045] Optionally, the outer walls of the first bracket 21 and the second bracket 22 are provided with a wire fixing piece 291 corresponding to the wire clamping groove 29, and the two ends of the wire fixing piece 291 are provided with a first mounting hole 292. The first bracket 21 and the second bracket 22 are provided with a second mounting hole 293 corresponding to the first mounting hole 292, and the screw passes through the first mounting hole 292 and is threadedly connected to the second mounting hole 293.

[0046] Specifically, in this embodiment, the wire fixing member 291 is a plastic pressing block to compress the sampling wire harness gathered at the ends of the first bracket 21 and the second bracket 22 to prevent the device from falling off when the sampling wire harness is connected.

[0047] See also Figures 1 to 3 The end surfaces of both ends of the first bracket 21 and / or the second bracket 22 are provided with a carrying groove 20 with a rectangular opening.

[0048] Specifically, in this embodiment, the end faces at both ends of the first bracket 21 (i.e., the outer walls of the assembly portion 25) are provided with carrying grooves 20, which can be used as handles for manual carrying or as lifting holes to be compatible with robot carrying operations, thereby avoiding the structural design being limited by cost to only support manual carrying or only support lifting carrying, and facilitating flexible selection of a suitable carrying method according to actual conditions.

[0049] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A multi-battery energy storage module, characterized in that: include: A plurality of battery groups, wherein the plurality of battery groups are arranged along a first direction, each of the battery groups comprises a plurality of batteries arranged along a second direction perpendicular to the first direction, and the same electrodes of the batteries of two adjacent battery groups are arranged in opposite directions; A first bracket and a second bracket, the first bracket and the second bracket are detachably assembled with each other, the first bracket is provided with a plurality of first grooves corresponding to the plurality of batteries, the second bracket is provided with a plurality of second grooves corresponding to the plurality of batteries, two ends of the same battery are respectively inserted into the first groove and the second groove, and the first bracket and the second bracket are provided with a first through hole communicating with the corresponding first groove or the second groove; Two first connecting pieces, one of which is disposed on the first bracket, and the other of which is disposed on the first bracket or the second bracket, and the two first connecting pieces are electrically connected to the batteries of the two outermost battery packs respectively through the first through holes; A plurality of second connecting pieces, a portion of which is disposed on the first bracket, and another portion of which is disposed on the second bracket, and each of which is electrically connected to batteries of two adjacent battery packs through the first through hole.

2. The multi-battery energy storage module according to claim 1, characterized in that: Two adjacent batteries in each battery group are staggered along the second direction, and the same electrodes of all batteries in each battery group are arranged in the same direction.

3. The multi-battery energy storage module according to claim 1, characterized in that: It also includes at least one heating film, which is arranged between two adjacent batteries of the plurality of battery packs.

4. The multi-battery energy storage module according to claim 1, characterized in that: The first connecting sheet and the second connecting sheet include a sheet body and a plurality of connecting parts, the sheet body is provided with a plurality of second through holes corresponding to a plurality of batteries, the plurality of connecting parts are provided corresponding to a plurality of second through holes, and part of the edges of the connecting parts are connected to the side walls of the second through holes.

5. The multi-battery energy storage module according to claim 1, characterized in that: The first bracket and the second bracket each include a supporting portion and two assembling portions, the supporting portion extends along a first direction and is correspondingly provided with the first groove or the second groove, the two assembling portions are provided on both sides of the supporting portion along the first direction, the assembling portion of one of the first bracket and the second bracket is provided with a snap protrusion at one end away from the supporting portion, and the other end is provided with a snap hole, and when the first bracket and the second bracket are assembled, the snap protrusion is snapped into the snap hole.

6. The multi-battery energy storage module according to claim 5, characterized in that: The support portion of one of the first bracket and the second bracket is provided with connecting protrusions on two outer side walls along the second direction, and the support portion of the other bracket is provided with connecting extensions on two outer side walls corresponding to the connecting protrusions, and the connecting extensions are provided with connecting holes. When the first bracket and the second bracket are assembled, the connecting protrusions are snapped into the connecting holes.

7. The multi-battery energy storage module according to claim 5, characterized in that: A positioning hole is provided on an end surface of the assembling portion of the first bracket and / or the second bracket close to one end of the supporting portion.

8. The multi-battery energy storage module according to claim 1, characterized in that: An outer side wall of the first bracket and the second bracket is provided with a plurality of wire clamping grooves extending along a first direction.

9. The multi-battery energy storage module according to claim 8, characterized in that: The outer side walls of the first bracket and the second bracket are provided with wire fixing parts corresponding to the wire clamping groove, and first mounting holes are provided at both ends of the wire fixing parts. The first bracket and the second bracket are provided with second mounting holes corresponding to the first mounting holes, and the screws pass through the first mounting holes and are threadedly connected to the second mounting holes.

10. The multi-battery energy storage module according to claim 1, characterized in that: The end surfaces of both ends of the first bracket and / or the second bracket are provided with carrying grooves with rectangular openings.

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