Assembled battery energy storage modules and battery modules

Abstract

The utility model discloses an assembleable battery energy storage module and a battery module, wherein the battery energy storage module comprises: a plurality of battery groups, a first bracket and a second bracket, the battery of each battery group is provided with a first pole and a second pole; the second bracket is assembled with the first bracket, the second bracket is provided with a first connecting piece, a second connecting piece and a plurality of third connecting pieces, the first connecting piece is connected with the first poles of the plurality of batteries, the second connecting piece is connected with the second poles of the plurality of batteries, and the two ends of the third connecting piece are connected with a first pole and another second pole of two adjacent battery groups; an outer side wall of the first bracket and / or the second bracket is provided with a plurality of splicing protrusions, and another outer side wall is provided with a splicing groove corresponding to the splicing protrusions. The assembleable battery energy storage module of the utility model can easily and quickly assemble and weld a single module, and can also quickly assemble a plurality of battery energy storage modules.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage modules, in particular to an assembleable battery energy storage module and a battery module. Background Art

[0002] At present, most cylindrical battery energy storage product modules on the market are assembled by welding the cells up and down, and the assembly combination of existing cylindrical battery energy storage product modules also needs to be achieved by combining and fixing metal end plates / plastic end plates with fixing screws, and combining and fixing end plates with steel belts / plastic-steel belts. The structure of the energy storage product module itself is complex. With the existing assembly combination structure, the welding and assembly processes of the cylindrical battery energy storage product module are complicated, and the operator is required to flip the module multiple times to perform corresponding operations, which leads to low assembly efficiency of the energy storage product module, easy damage of the module and increased material costs. Utility Model Content

[0003] The purpose of the utility model is to provide an assembleable battery energy storage module, which can easily and quickly assemble and weld a single module, and can also quickly assemble multiple battery energy storage modules, effectively improving the assembly efficiency of the battery energy storage module.

[0004] Another object of the present invention is to provide a battery module, wherein the assembleable battery energy storage module can be easily and quickly assembled and welded as a single module, and multiple battery energy storage modules can also be quickly assembled to form a battery module.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses an assembleable battery energy storage module, which comprises: a plurality of battery packs, a first bracket and a second bracket, the plurality of battery packs are arranged along a first direction, each of the battery packs comprises a plurality of batteries, the batteries comprise a first end and a second end, the second end is provided with a first pole portion and a second pole portion; the first bracket is provided with a plurality of first grooves, the first grooves are used for plugging the first ends of the plurality of batteries; the second bracket and the first bracket are detachably assembled with each other, the second bracket is provided with a plurality of second grooves, the second grooves are used for plugging the second ends of the plurality of batteries, the second bracket is provided with a first through hole and a second through hole communicating with the first groove through hole, the second bracket is provided with a first connecting piece, a second connecting piece and a plurality of third connecting pieces, the first connecting piece is connected to the first pole of a plurality of batteries of an outermost battery group through the first through hole, the second connecting piece is connected to the second pole of a plurality of batteries of another outermost battery group through the second through hole, and both ends of the third connecting piece are respectively connected to the first pole of one of the two adjacent battery groups and the second pole of the other battery group through the first through hole and the second through hole; an outer side wall of the first bracket and / or the second bracket is provided with a plurality of splicing protrusions, and the other outer side wall is provided with a splicing groove corresponding to the splicing protrusions.

[0006] Optionally, the cross-section of the first through hole is circular, the cross-section of the second through hole is arc-shaped, the first connecting piece is provided with a first connecting portion, the second connecting piece is provided with a second connecting portion, the third connecting piece is provided with a third connecting portion and a fourth connecting portion, the first connecting portion and the third connecting portion are circular blocks corresponding to the first through hole, and the second connecting portion and the fourth connecting portion are arc-shaped blocks corresponding to the second through hole.

[0007] Optionally, the second bracket is provided with a plurality of arc-shaped blocking portions between the first through hole and the second through hole.

[0008] 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.

[0009] Optionally, an alignment hole is provided at one end of the assembly part of one of the first bracket and the second bracket away from the support part, and an alignment column is provided at one end of the assembly part of the other bracket away from the support part. When the first bracket and the second bracket are assembled, the alignment column is inserted into the alignment hole.

[0010] Optionally, the two outer side walls of the supporting parts of the first bracket and the second bracket are respectively provided with connecting extension parts, the connecting extension part of the first bracket is provided with a connecting protrusion, and the connecting extension part of the second bracket is provided with a connecting hole, and when the first bracket and the second bracket are assembled, the connecting protrusion is clamped in the connecting hole.

[0011] 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.

[0012] Optionally, at least two lifting holes are respectively provided at both ends of the first bracket and / or the second bracket.

[0013] Optionally, the first bracket is provided with a plurality of ventilation holes communicating with the corresponding first grooves, and the first bracket is also provided with a plurality of exhaust grooves communicating with the ventilation holes.

[0014] In order to achieve the above another object, the utility model discloses a battery module, which includes:

[0015] A plurality of battery energy storage modules as described above that can be assembled, wherein the splicing protrusion of one of two adjacent battery energy storage modules is inserted into the splicing groove of the other battery energy storage module.

[0016] The utility model is provided with a first bracket and a second bracket to assemble and fix multiple battery packs arranged along a first direction, each battery pack includes multiple batteries, the first bracket and the second bracket are respectively provided with a first groove and a second groove for the ends of the multiple batteries to be plugged in, and then they can be detachably assembled with each other to fix the multiple battery packs, the second bracket is provided with a first connecting piece, a second connecting piece and a plurality of third connecting pieces, the first connecting piece and the second connecting piece are respectively connected to the batteries of the two outermost battery packs, and the plurality of third connecting pieces are respectively connected to the batteries of the two adjacent battery packs, so that a single module can be easily and quickly assembled and welded, and the two outer side walls of the first bracket and / or the second bracket are respectively provided with a plurality of splicing protrusions and splicing grooves, so that multiple battery energy storage modules can be quickly assembled, and the assembly efficiency of the battery energy storage modules can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of a battery energy storage module that can be assembled according to an embodiment of the utility model.

[0018] Figure 2 This is a diagram of the exploded structure of an assembleable battery energy storage module according to an embodiment of the utility model.

[0019] Figure 3 for Figure 1 Three-dimensional structure diagram from another angle.

[0020] Figure 4 It is a three-dimensional structural diagram of a battery module according to an embodiment of the utility model.

[0021] Figure 5 This is an exploded structural diagram of a battery module according to an embodiment of the present utility model. 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 5 The utility model discloses an assembleable battery energy storage module 10, which comprises:

[0024] A plurality of battery groups 1 are arranged along a first direction X, each battery group 1 comprises a plurality of batteries 100, the battery 100 comprises a first end 101 and a second end 102, the second end 102 is provided with a first pole portion 103 and a second pole portion 104;

[0025] A first bracket 21, wherein the first bracket 21 is provided with a plurality of first grooves 211, and the first grooves 211 are used for plugging the first ends 101 of the plurality of batteries 100;

[0026] The second bracket 22 is detachably assembled with the first bracket 21, and the second bracket 22 is provided with a plurality of second grooves 221, and the second grooves 221 are used for plugging the second ends 102 of the plurality of batteries 100, and the second bracket 22 is provided with a first through hole 222 and a second through hole 223 communicating with the first groove 211, and the second bracket 22 is provided with a first connecting piece 224, a second connecting piece 225 and a plurality of third connecting pieces 226, the first connecting piece 224 is connected to the first pole portion 103 of the plurality of batteries 100 of an outermost battery pack 1 through the first through hole 222, the second connecting piece 225 is connected to the second pole portion 104 of the plurality of batteries 100 of the other outermost battery pack 1 through the second through hole 223, and the two ends of the third connecting piece 226 are respectively connected to the first pole portion 103 of one battery pack 1 and the second pole portion 104 of the other battery pack 1 of two adjacent battery packs 1 through the first through hole 222 and the second through hole 223;

[0027] One outer side wall of the first bracket 21 and / or the second bracket 22 is provided with a plurality of splicing protrusions 231 , and the other outer side wall is provided with splicing grooves 232 corresponding to the splicing protrusions 231 .

[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, each battery pack 1 includes multiple batteries 100, the first bracket 21 and the second bracket 22 are respectively provided with a first groove 211 and a second groove 221 for the end portions of the multiple batteries 100 to be plugged in, and then can be detachably assembled with each other to fix the multiple battery packs 1, the second bracket 22 is provided with a first connecting piece 224, a second connecting piece 225 and a plurality of third connecting pieces 226, the first connecting piece 224 and the second connecting piece 225 are respectively connected to the batteries 100 of the two outermost battery packs 1, and the plurality of third connecting pieces 226 are respectively connected to the batteries 100 of the two adjacent battery packs 1, so as to facilitate simple and rapid assembly and welding of a single module, and the two outer side walls of the first bracket 21 and / or the second bracket 22 are respectively provided with a plurality of splicing protrusions 231 and a splicing groove 232, so as to facilitate rapid assembly between multiple battery energy storage modules, and effectively improve the assembly efficiency of the battery energy storage module 10.

[0029] See also Figures 1 to 5 The cross section of the first through hole 222 is circular, the cross section of the second through hole 223 is arc-shaped, the first connecting piece 224 is provided with a first connecting portion 2241, the second connecting piece 225 is provided with a second connecting portion 2251, the third connecting piece 226 is provided with a third connecting portion 2261 and a fourth connecting portion 2262, the first connecting portion 2241 and the third connecting portion 2261 are circular blocks corresponding to the first through hole 222, and the second connecting portion 2251 and the fourth connecting portion 2262 are arc-shaped blocks corresponding to the second through hole 223.

[0030] Specifically, in this embodiment, the first connection part 2241 is the negative electrode of the battery, and the second connection part 2251 is the positive electrode of the battery, but it is not limited thereto. In some embodiments, the first connection part 2241 is the positive electrode of the battery, and the second connection part 2251 is the negative electrode of the battery.

[0031] Specifically, in this embodiment, the first connecting piece 224 and the second connecting piece 225 are aluminum bars for battery electrodes connected in parallel, and the third connecting piece 226 is aluminum bars for battery positive and negative electrodes connected in series and in parallel. The first connecting piece 224, the second connecting piece 225 and a plurality of third connecting pieces 226 are correspondingly installed on the top surface of the second bracket 22, the first connecting part 2241 and the third connecting part 2261 are fixedly connected to the negative electrode of the battery 100 by laser spot welding, and the second connecting part 2251 and the fourth connecting part 2262 are fixedly connected to the positive electrode of the battery 100 by laser spot welding, but are not limited thereto.

[0032] See also Figures 1 to 5The second bracket 22 is provided with a plurality of arc-shaped blocking portions 227 between the first through hole 222 and the second through hole 223 .

[0033] Specifically, in this embodiment, the arc-shaped barrier portion 227 is a partition rib, which cooperates with the first through hole 222 and the second through hole 223 of the second bracket 22 to separate the positive and negative electrodes of the battery 100, thereby completing the series-parallel welding of the positive and negative electrodes of the battery 100 on the second bracket 22 without flipping the battery energy storage module 10, reducing the operating procedures and reducing costs.

[0034] See also Figures 1 to 5 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.

[0035] 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 the structural assembly of a single battery energy storage module 10 is achieved 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.

[0036] 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.

[0037] Optionally, one end of the assembly portion 25 of the first bracket 21 and the second bracket 22 away from the support portion 24 is provided with a positioning hole 2501, and the other end of the assembly portion 25 away from the support portion 24 is provided with a positioning post 2502. When the first bracket 21 and the second bracket 22 are assembled, the positioning post 2502 is plugged into the positioning hole 2501, which is conducive to the rapid assembly of the first bracket 21 and the second bracket 22.

[0038] Specifically, in this embodiment, the two assembly parts 25 on both sides of the second bracket 22 are both provided with alignment posts 2502 , and the two assembly parts 25 on both sides of the first bracket 21 are both provided with alignment holes 2501 corresponding to the alignment posts 2502 , but the present invention is not limited thereto.

[0039] See also Figures 1 to 5 The two outer side walls of the supporting parts 24 of the first bracket 21 and the second bracket 22 are respectively provided with connecting extension parts 241, the connecting extension part 241 of the first bracket 21 is provided with a connecting protrusion 242, and the connecting extension part 241 of the second bracket 22 is provided with a connecting hole 243. When the first bracket 21 and the second bracket 22 are assembled, the connecting protrusion 242 is clamped in the connecting hole 243, which is beneficial to improve the connection stability of the first bracket 21 and the second bracket 22.

[0040] Specifically, in the present embodiment, the connecting extension portion 241 between the first bracket 21 and the second bracket 22 is also formed with a structure similar to the snap-fitting protrusion 251 and the snap-fitting groove 252 on the assembling portion 25. The connecting protrusion 242 is arranged on a structure similar to the snap-fitting groove 252, and the connecting hole 243 is arranged on a structure similar to the snap-fitting protrusion 251, which is beneficial to improving the connection accuracy of the connecting protrusion 242 snapping into the connecting hole 243.

[0041] See also Figures 1 to 5 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, a bolt hole 254 is provided in the middle position of the end surface of the assembly portion 25 of the first bracket 21 and the second bracket 22, and a positioning hole 253 for guidance is provided on one side of the first bracket 21 corresponding to the bolt hole 254, so as to facilitate accurate positioning when the module is blindly installed into the box, and ensure that the bolt is aligned with the nut through the bolt hole 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 adjust the position 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 5 At least two lifting holes 28 are respectively provided at both ends of the first bracket 21 and / or the second bracket 22 .

[0044] Specifically, in this embodiment, waist-shaped hoisting holes 28 are provided on both outer side walls of the two assembly parts 25 on both sides of the first bracket 21, so as to realize mechanical hoisting and transportation, which is beneficial to significantly improve production efficiency and reduce production safety hazards.

[0045] See also Figures 1 to 5 The first bracket 21 is provided with a plurality of vent holes 291 communicating with the corresponding first grooves 211 , and the first bracket 21 is also provided with a plurality of exhaust grooves 292 communicating with the vent holes 291 .

[0046] Specifically, in the present embodiment, the vent holes 291 and the exhaust grooves 292 are provided on the bottom surface of the first bracket 21, which is beneficial for the bottom of the battery energy storage module 10 to be tightly fitted against the box body after the battery energy storage module 10 is put into the box. When the battery 100 has thermal runaway and its internal temperature rises sharply, the high-temperature gas ejected outward after the explosion-proof valve at the bottom of the battery 100 is opened under pressure is quickly guided to the outside of the battery energy storage module 10, so as to reduce the pressure of the battery 100 and effectively avoid the occurrence of battery 100 explosion.

[0047] See also Figures 1 to 5 In this embodiment, the splicing groove 232 is a dovetail groove, and the splicing protrusion 231 is a dovetail tenon, and they are respectively arranged on the two sides of the first bracket 21 and the second bracket 22.

[0048] So that the two battery energy storage modules 10 can be quickly spliced ​​by directly inserting the dovetail tenon on the side of one battery energy storage module 10 into the dovetail groove on the side of another battery energy storage module 10. Such a splicing structure has high reliability and meets the requirements of module transportation and assembly into boxes.

[0049] See also Figures 1 to 5 The utility model discloses a battery module 200, which includes:

[0050] For a plurality of battery energy storage modules 10 that can be assembled as described above, the splicing protrusion 231 of one of two adjacent battery energy storage modules 10 is plugged into the splicing groove 232 of the other battery energy storage module 10 .

[0051] Specifically, in the present embodiment, the first connecting piece 224 , the second connecting piece 225 , and the third connecting piece 226 between the plurality of battery energy storage modules 10 are an integrated structure, but the present invention is not limited thereto.

[0052] 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. An assembleable 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, the batteries comprise a first end and a second end, and the second end is provided with a first pole portion and a second pole portion; A first bracket, wherein the first bracket is provided with a plurality of first grooves, and the first grooves are used for inserting the first ends of the plurality of batteries; a second bracket, the second bracket being detachably assembled with the first bracket, the second bracket being provided with a plurality of second grooves, the second grooves being used for inserting the second ends of the plurality of batteries, the second bracket being provided with a first through hole and a second through hole communicating with the first groove, the second bracket being provided with a first connecting piece, a second connecting piece and a plurality of third connecting pieces, the first connecting piece being connected to the first poles of the plurality of batteries of an outermost battery pack through the first through hole, the second connecting piece being connected to the second poles of the plurality of batteries of another outermost battery pack through the second through hole, and two ends of the third connecting piece being connected to the first pole of one of the two adjacent battery packs and the second pole of the other battery pack through the first through hole and the second through hole, respectively; An outer side wall of the first bracket and / or the second bracket is provided with a plurality of splicing protrusions, and another outer side wall is provided with splicing grooves corresponding to the splicing protrusions.

2. The assembleable battery energy storage module according to claim 1, characterized in that: The cross-section of the first through hole is circular, the cross-section of the second through hole is arc-shaped, the first connecting piece is provided with a first connecting portion, the second connecting piece is provided with a second connecting portion, the third connecting piece is provided with a third connecting portion and a fourth connecting portion, the first connecting portion and the third connecting portion are circular blocks corresponding to the first through hole, and the second connecting portion and the fourth connecting portion are arc-shaped blocks corresponding to the second through hole.

3. The assembleable battery energy storage module according to claim 2, characterized in that: The second bracket is provided with a plurality of arc-shaped blocking portions between the first through hole and the second through hole.

4. The assembleable 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.

5. The assembleable battery energy storage module according to claim 4, characterized in that: An alignment hole is provided at one end of the assembly part of one of the first bracket and the second bracket away from the support part, and an alignment column is provided at one end of the assembly part of the other bracket away from the support part. When the first bracket and the second bracket are assembled, the alignment column is inserted into the alignment hole.

6. The assembleable battery energy storage module according to claim 4, characterized in that: The two outer side walls of the support parts of the first bracket and the second bracket are respectively provided with connecting extension parts, the connecting extension part of the first bracket is provided with a connecting protrusion, and the connecting extension part of the second bracket is provided with a connecting hole. When the first bracket and the second bracket are assembled, the connecting protrusion is clamped in the connecting hole.

7. The assembleable battery energy storage module according to claim 4, 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 assembleable battery energy storage module according to claim 1, characterized in that: At least two lifting holes are respectively arranged at both ends of the first bracket and / or the second bracket.

9. The assembleable battery energy storage module according to claim 1, characterized in that: The first bracket is provided with a plurality of vent holes communicating with the corresponding first grooves, and the first bracket is also provided with a plurality of exhaust grooves communicating with the vent holes.

10. A battery module, characterized in that: include: A plurality of assemblable battery energy storage modules as described in any one of claims 1 to 9, wherein the splicing protrusion of one of two adjacent battery energy storage modules is inserted into the splicing groove of the other battery energy storage module.

Images