CN215933713U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN215933713U CN215933713U CN202122019825.6U CN202122019825U CN215933713U CN 215933713 U CN215933713 U CN 215933713U CN 202122019825 U CN202122019825 U CN 202122019825U CN 215933713 U CN215933713 U CN 215933713U
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- battery
- output side
- battery module
- outer frame
- bus bar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery module. In the present invention, a battery module includes: the battery cell array comprises an outer frame and a battery cell array arranged in the outer frame, wherein the battery cell array is provided with an output side; the battery cell group column includes: the battery module comprises a plurality of battery cells which are sequentially stacked and arranged, wherein any two adjacent battery cells are connected, tabs at two ends of each battery cell are respectively positioned at two ends of the battery module, and the output side of each battery cell is at least positioned at one end of the battery module; and the lug of the partial battery core facing to the output side is connected with the bus bar assembly. Compared with the prior art, the battery module has a simple structure and reduces the cost; the parts are light, and the weight of the module is reduced; the installation of electric core is also more convenient.
Description
Technical Field
The embodiment of the utility model relates to the field of batteries, in particular to a battery module.
Background
In recent years, the appearance of new energy automobiles plays a great role in promoting social development and environmental protection, and a power battery pack is a rechargeable battery, is a power source of the new energy automobiles, and is widely applied to the field of the new energy automobiles. The battery pack comprises a plurality of battery modules, the battery modules are vertically arranged in the outer frame through a plurality of battery cores, the two ends of each battery core are provided with busbars, the busbars support copper bars, and the lugs of the battery cores are connected with the copper bars after passing through the busbars, so that the battery cores are connected in series. The structure part is complex in structure, high in cost and heavy in weight, and the battery cell tab is difficult to penetrate through the gap of the busbar support, so that the battery cell tab is not favorable for quick assembly.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims to provide a battery module, which has a simple structure and reduces the cost; the parts are light, and the weight of the module is reduced; the installation of electric core is also more convenient.
In order to solve the above technical problem, an embodiment of the present invention provides a battery module, including: the battery cell pack comprises an outer frame and a battery cell pack column arranged in the outer frame, wherein the battery cell pack column is provided with an output side; the cell group column includes: the battery module comprises a plurality of battery cores which are sequentially stacked and arranged, wherein any two adjacent battery cores are connected, tabs at two ends of each battery core are respectively positioned at two ends of the battery module, and the output side is at least positioned at one end of the battery module;
and part of lugs of the battery cells facing the output side are connected with a bus bar assembly.
In one embodiment, the plurality of cells includes a first outer cell and a second outer cell arranged outside, and at least one middle cell clamped between the first outer cell and the second outer cell; the busbar assembly has a first busbar and a second busbar;
the first outer side battery cell faces the lug of the output side and is connected with the first bus bar, the second outer side battery cell faces the lug of the output side and is connected with the second bus bar, and the middle battery cell faces the lug of the output side and is connected without the bus bar.
In one embodiment, the first bus bar includes:
a tab of the first outer cell facing the output side is connected with the first electric connecting piece; and the number of the first and second groups,
and the first insulating bracket is connected with the first electric connector and the outer frame.
In an embodiment, the first insulating support is disposed in the outer frame, and two ends of the first insulating support are respectively connected to the top plate and the bottom plate of the outer frame.
In one embodiment, the outer frame has a front end plate disposed opposite to the output side, a rear end plate disposed opposite to the front end plate, and a first side plate and a second side plate connecting the front end plate and the rear end plate;
the first insulating bracket is provided with a first side mounting surface facing the first side plate and a first upper mounting surface facing the top plate of the outer frame; the first electric connector is provided with a first electric output part connected with the first upper mounting surface, a first connecting part bent and attached to the first side mounting surface through the first electric output part, and the first outer side battery cell faces to a lug of the output side and is connected with the first connecting part.
In one embodiment, the second bus bar includes:
the second electric connecting piece is connected with a lug of the second outer side battery cell facing the output side; and the number of the first and second groups,
and the second insulating bracket is connected with the second electric connector and the outer frame.
In an embodiment, the second insulating support is disposed in the outer frame, and two ends of the second insulating support are respectively connected to the top plate and the bottom plate of the outer frame.
In one embodiment, the outer frame has a front end plate disposed opposite to the output side, a rear end plate disposed opposite to the front end plate, and a first side plate and a second side plate connecting the front end plate and the rear end plate;
the second insulating support is provided with a second side mounting surface facing the first side plate and a second upper mounting surface facing the top plate of the outer frame; the second electric connector is provided with a second electric output part connected with the second upper mounting surface, a second connecting part bent and attached to the second side mounting surface through the second electric output part, and the second outer side battery cell faces towards the lug of the output side and is connected with the second connecting part.
In an embodiment, the cell group row further has a non-output side, the non-output side is located at one of two ends of the battery module, and the non-output side is free of a bus bar assembly; and the lug parts of the battery cells connected towards the non-output side are overlapped and connected.
In one embodiment, each of the battery cells is connected to the tab portion, which is not connected to the bus bar assembly, in a manner of overlapping toward the output side.
In one embodiment, the overlapped connection portions of the overlapped and connected tabs are arranged opposite to the end face of the outer frame.
Compared with the prior art, the battery cells are sequentially stacked and arranged, and the lug of a part of the battery cells facing the output side is connected with the bus bar assembly, so that the bus bar assembly can be miniaturized in structure, parts are lightened, and the weight of the module is reduced. And the rest of the battery cores which are not connected with the busbar assembly can be connected with the adjacent battery cores in series without the blocking limitation of the busbar assembly, the two adjacent battery cores can be directly connected in series, the operation space is large, and the operation is not interfered by the busbar assembly and is convenient. Make this battery module simple structure, spare part is less, has also reduced the assembly degree of difficulty and equipment cost.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of M of FIG. 1;
fig. 3 is a schematic structural view of a battery module according to another aspect of the present embodiment;
FIG. 4 is an enlarged view of a portion of N of FIG. 3;
fig. 5 is a schematic structural diagram of a cell stack array according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a non-output-side cell tab connection structure of a cell stack row according to the present novel embodiment.
Reference numerals: 10. an outer frame; 101. a rear end plate; 102. a first side plate; 103. a second side plate; 104. a top plate; 105. a bottom 20, a cell array; a plate; 201. an output side; 202. a non-output side; 1. a first outside cell; 11. a tab; 12. a tab; 2. a second outside electrical core; 21. a tab; 3. a middle cell; 31. a tab; 32. a tab; 4. a middle cell; 41. a tab; 7. a first bus bar; 71. a first electrical connection; 711. a first electrical output; 712. a first connection portion; 72. a first insulating support; 721. a first side mounting surface; 722. a first upper mounting surface; 8. a second bus bar; 81. a second electrical connection; 811. a second electrical output; 812. a second connecting portion; 82. a second insulating support; 821. a second side mounting surface; 822. a second upper mounting surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.
In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms will be used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be construed as words of convenience and should not be construed as limiting terms.
One of a pair of lugs of the battery cells is a positive pole, the other is a negative pole, and when the battery cells are connected in series, the positive pole of one battery cell is connected with the negative pole of the other battery cell.
Embodiments of the present invention are described below with reference to the drawings.
The utility model relates to a battery module. As shown in fig. 1, 2, 3, 4, and 5, the battery module includes: the battery pack assembly includes a frame 10 and a cell pack column disposed in the frame 10, the cell pack column having an output side 201 and a non-output side 202. The battery cell group column includes: a plurality of electric cores of piling up the range in order, and arbitrary two adjacent electric cores link to each other, and the utmost point ear at each electric core both ends is located the both ends of battery module respectively, and wherein one end is output side 201 place side, and the other end is non-output side 202 place side, and the polarity of two utmost point ears that link to each other is opposite, and the anodal and the negative pole of battery module all set up at output side 201, lie in the same one end of battery promptly. The electrode lugs of a part of the battery cells in the battery cell array facing the output side 201 are connected with the bus bar assembly, so that the structure of the bus bar assembly can be miniaturized, parts are light in weight, and the weight of the module is reduced. In addition, the remaining cells not connected to the busbar assembly may be connected in series with adjacent cells. The barrier restriction of the busbar assembly is avoided, two adjacent electric cores can be directly connected in series, the operation space is large, and the operation is not interfered by the busbar assembly and is convenient to operate. In this way, this battery module simple structure, spare part is less, has also reduced the assembly degree of difficulty and equipment cost.
It can be understood that, in other embodiments, both ends of the battery module may be output sides, one end of the battery module is a positive electrode, and the other end of the battery module is a negative electrode, and at this time, both ends of the battery module are provided with the bus bar assembly, but the bus bar assembly at any one end is only connected with the tabs of some of the battery cells, so that the bus bar assembly is integrally miniaturized and lightweight. That is, the output side is located at least at one end of the battery module.
Specifically, the plurality of cells includes a first outer cell 1 and a second outer cell 2 arranged outside, and at least one intermediate cell sandwiched between the first outer cell 1 and the second outer cell 2, such as an intermediate cell 3 and an intermediate cell 4. As shown in fig. 5, there may be 4 middle cells, and in other embodiments, there may be other numbers of middle cells. The tab 11 of the first outer cell 1 facing the output side 201 is connected to the first busbar 7, the tab 21 of the second outer cell 2 facing the output side 201 is connected to the second busbar 8, and the tab of the middle cell facing the output side 201 is connected to a busbar-free tab.
As can be seen from the above, since the cells are sequentially stacked and arranged, the first bus bar 7 and the second bus bar 8 are respectively connected to the tab 11 of the first outer cell 1 and the tab 21 of the second outer cell 2, and the structure of the first bus bar 7 and the second bus bar 8 can be reduced in size and parts, thereby reducing the weight of the module. Two adjacent electric cores are connected in series in the middle electric core, and the two adjacent electric cores can be directly connected in series without the separation limitation of the busbar, so that the operation space is large, and the operation is not convenient and fast to perform by the busbar. In addition, the battery module is simple in structure, few in parts and low in assembly difficulty and equipment cost.
It is understood that, in other embodiments, a part of the cells in the middle cell may be connected to the bus bar, and is not limited to being connected to the first outer cell 1 and the second outer cell 2. That is, one cell or a plurality of cells in the cell stack row is connected to the bus bar, without limiting which cell is therein.
Implementation details of the present embodiment are specifically described below, and the following description is provided only for the sake of understanding and is not necessary for implementing the present embodiment.
Further, as shown in fig. 1 and 2, the first bus bar 7 includes: a first electrical connector 71 and a first insulating support 72, the first electrical connector 71 being copper or aluminum, the first insulating support 72 being a plastic or acrylic support. The tab 11 of the first outer cell 1 facing the output side 201 is connected to a first electrical connection 71, and the first insulating support 72 connects the first electrical connection 71 to the outer frame 10.
Further, as shown in fig. 1 and 2, the first insulating support 72 is disposed in the outer frame 10, and both ends of the first insulating support 72 are connected to the top plate 104 and the bottom plate 105 of the outer frame 10, respectively.
Further, as shown in fig. 1 and 2, the outer frame 10 has a front end plate (not shown) disposed opposite to the output side 201, a rear end plate 101 disposed opposite to the non-output side 202, and a first side plate 102 and a second side plate 103 connecting the front end plate and the rear end plate 101. The first insulating bracket 72 has a first side mounting surface 721 facing the first side plate 102 and a first upper mounting surface 722 facing the top plate 104 of the outer frame 10. The first electrical connector 71 has a first electrical output 711 connected to the first upper mounting surface 722, and a first connection portion 712 bent from the first electrical output 711 and attached to the first side mounting surface 721, and the tab 11 of the first outer cell 1 facing the output side 201 is connected to the first connection portion 712. The tab 11 can be directly connected to the first electrical connector 71 without passing through the slot, and the tab 11 does not need to be bent in a transition manner, so that the installation is convenient, and the layout of the output side 201 is more regular. The first electrical output part 711 is located on the first upper mounting surface 722, and the circuit board of the battery module is also conveniently connected to the first electrical output part 711, the first electrical output part 711 forming a part of the output terminal of the battery module.
Further, as shown in fig. 3 and 4, the second bus bar 8 includes: a second electrical connector 81 and a second insulating support 82, the second electrical connector 81 being copper or aluminium, the second insulating support 82 being a plastic or acrylic support. The tab 12 of the second outer cell 2 facing the output side 201 is connected to a second electrical connection 81, and a second insulating support 82 connects the second electrical connection 81 to the outer frame 10.
Further, as shown in fig. 3 and 4, the second insulating support 82 is disposed in the outer frame 10, and both ends of the second insulating support 82 are connected to the top plate 104 and the bottom plate 105 of the outer frame 10, respectively.
Further, as shown in fig. 3 and 4, the second insulating bracket 82 has a second side mounting surface 821 facing the first side plate 102, and a second upper mounting surface 822 facing the top plate 104 of the outer frame 10. The second electrical connector 81 has a second electrical output 811 connected to the second upper mounting surface 822, a second connection portion 812 bent from the second electrical output 811 and attached to the second side mounting surface 821, and a tab 21 of the second outer cell 2 facing the output side 201 is connected to the second connection portion 812. The tab 11 can be directly connected to the second electrical connector 81 without passing through the slot, and the tab 21 does not need to be bent in a transition manner, so that the installation is convenient, and the layout of the output side 201 is more regular. The first electrical output part 711 is located on the second upper mounting surface 822, and the circuit board of the battery module is also conveniently connected to the second electrical output part 811, and the second electrical output part 811 forms a part of the output terminal of the battery module.
In addition, as shown in fig. 6, the non-output side 202 is free of bus assemblies. Two adjacent electric cores are established ties mutually, do not have the separation restriction of busbar subassembly, and two adjacent electric cores can directly establish ties, and operating space is great, can not be done the simple operation in advance by the busbar. In addition, the battery module has simpler structure and fewer parts, and further reduces the assembly difficulty and the equipment cost. When the tab 11 is not connected with the first busbar 7 and the tab 21 is not connected with the second busbar 8, the cells can be straightened and laid out after being connected in series without interference.
It is more worth mentioning that the tab portions of the cells connected towards the non-output side 202 are overlapped and connected.
In addition, the tab portions of the middle cells connected towards the output side 201 are overlapped and connected. As shown in fig. 1, 2, 3, 4 and 5, the tab 31 of the middle cell 3 and the tab 41 of the middle cell 4 are partially overlapped, and the overlapped portions may be fixed by welding or gluing. The tab 12 of the first outer cell 1 and the tab 32 of the middle cell 3 partially overlap, and the overlapping portions may be fixed by welding or gluing. And other cells are analogized in turn. It is understood that in other embodiments, the pole pieces connected to the bus bar are other cells in the cell stack column, and no tab of the cell connected to the bus bar facing the output side partially overlaps with the tab connected thereto. That is, each cell is connected to the tab portion, which is not connected to the bus bar assembly, in a manner of overlapping toward the output side. Alternatively, as shown in fig. 5 and fig. 6, the overlapped connecting portions of the overlapped tabs are disposed opposite to the end face of the outer frame 10, that is, the portion a of the cell facing the output side 201 where the tabs are overlapped is disposed opposite to the front end plate, and the portion of the cell facing the non-output side 202 where the tabs are overlapped is disposed opposite to the rear end plate 101. The arrangement of the output side 201 and the non-output side 202 in the battery module is more regular and reasonable, and the space of the battery module is saved.
The structure in which the tabs of the cells facing the non-output side are connected in an overlapping manner may be the same as the structure in which the tabs of the cells facing the output side are connected in an overlapping manner, and will not be described in detail herein.
In the present embodiment, a structure in which the first bus bar 7 and the second bus bar 8 are connected to the corresponding battery cells is specifically described, and in other embodiments, bus bars connected to other battery cells may have the same structure as the first bus bar 7 and the second bus bar 8, and will not be described here.
While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.
These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the utility model, and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model in practice.
Claims (10)
1. A battery module, comprising:
an outer frame; and
a battery cell array arranged in the outer frame, the battery cell array having an output side, the battery cell array comprising a plurality of battery cells stacked in sequence, any two adjacent battery cells of the plurality of battery cells being electrically connected, tabs at two ends of each battery cell being respectively located at two ends of the battery module, and the output side being located at least at one end of the battery module,
and the lug of part of the battery cells facing the output side is connected with a bus bar assembly.
2. The battery module of claim 1, wherein the plurality of cells includes first and second outer cells arranged on an outer side and at least one middle cell sandwiched between the first and second outer cells, and wherein the bus bar assembly includes first and second bus bars,
the first outer side battery cell faces the lug of the output side and is connected with the first bus bar, the second outer side battery cell faces the lug of the output side and is connected with the second bus bar, and the middle battery cell faces the lug of the output side and is connected without the bus bar.
3. The battery module according to claim 2, wherein the first bus bar comprises:
a tab of the first outer cell facing the output side is connected with the first electric connecting piece; and the number of the first and second groups,
and the first insulating bracket is connected with the first electric connector and the outer frame.
4. The battery module according to claim 3, wherein the first insulating support is disposed in the outer frame, and both ends of the first insulating support are connected to the top plate and the bottom plate of the outer frame, respectively.
5. The battery module according to claim 4, wherein the outer frame has a front end plate disposed opposite the output side, a rear end plate disposed opposite the front end plate, and first and second side plates connecting the front and rear end plates;
the first insulating bracket is provided with a first side mounting surface facing the first side plate and a first upper mounting surface facing the top plate of the outer frame;
the first electric connector is provided with a first electric output part connected with the first upper mounting surface, a first connecting part bent and attached to the first side mounting surface through the first electric output part, and the first outer side battery cell faces to a lug of the output side and is connected with the first connecting part.
6. The battery module according to claim 2, wherein the second bus bar comprises:
the second electric connecting piece is connected with a lug of the second outer side battery cell facing the output side; and the number of the first and second groups,
and the second insulating bracket is connected with the second electric connector and the outer frame.
7. The battery module according to claim 6, wherein the second insulating support is disposed in the outer frame, and both ends of the second insulating support are connected to the top plate and the bottom plate of the outer frame, respectively.
8. The battery module according to claim 7, wherein the outer frame has a front end plate disposed opposite the output side, a rear end plate disposed opposite the front end plate, and first and second side plates connecting the front and rear end plates;
the second insulating support is provided with a second side mounting surface facing the first side plate and a second upper mounting surface facing the top plate of the outer frame;
the second electric connector is provided with a second electric output part connected with the second upper mounting surface, a second connecting part bent and attached to the second side mounting surface through the second electric output part, and the second outer side battery cell faces towards the lug of the output side and is connected with the second connecting part.
9. The battery module of claim 1, wherein the cell stack row further has a non-output side, and the non-output side is located at one of two ends of the battery module, and the non-output side is free of a busbar assembly;
the electrode lugs connected towards the non-output side of each battery cell are partially overlapped.
10. The battery module according to claim 1, wherein each of the battery cells is partially overlapped and connected to a tab, which is not connected to the bus bar assembly, toward the output side, and an overlapped and connected portion of the overlapped and connected tab is disposed opposite to an end surface of the outer frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122019825.6U CN215933713U (en) | 2021-08-25 | 2021-08-25 | Battery module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122019825.6U CN215933713U (en) | 2021-08-25 | 2021-08-25 | Battery module |
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| CN215933713U true CN215933713U (en) | 2022-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117564A (en) * | 2022-07-07 | 2022-09-27 | 天津市捷威动力工业有限公司 | Battery core assembly connecting structure and connecting method thereof, battery core unit, battery module and system |
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2021
- 2021-08-25 CN CN202122019825.6U patent/CN215933713U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117564A (en) * | 2022-07-07 | 2022-09-27 | 天津市捷威动力工业有限公司 | Battery core assembly connecting structure and connecting method thereof, battery core unit, battery module and system |
| CN115117564B (en) * | 2022-07-07 | 2023-07-07 | 天津市捷威动力工业有限公司 | Battery cell assembly connection structure, connection method thereof, battery cell unit, module and system |
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