CN112259867A - Battery module, battery module assembly and battery pack - Google Patents
Battery module, battery module assembly and battery pack Download PDFInfo
- Publication number
- CN112259867A CN112259867A CN202011236392.3A CN202011236392A CN112259867A CN 112259867 A CN112259867 A CN 112259867A CN 202011236392 A CN202011236392 A CN 202011236392A CN 112259867 A CN112259867 A CN 112259867A
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- battery module
- battery
- end plate
- module assembly
- mounting hole
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- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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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
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Abstract
The application relates to the field of battery assemblies, in particular to a battery module, a battery module assembly and a battery pack. The battery module assembly comprises a connecting piece and a plurality of battery modules; each battery module comprises a first end plate, a second end plate and a plurality of battery cells clamped between the first end plate and the second end plate, and the first end plate is provided with a first connecting part; the first connecting part of each battery module is detachably connected with the connecting piece. The battery module assembly can be quickly assembled according to the quantity demand of the battery modules in the battery module assembly, and the first end plate and the second end plate are not easily abraded in the assembling process, so that the reutilization rate of the battery modules is improved; can carry out quick replacement to battery module, improve the efficiency of equipment and change. In addition, connect a plurality of battery modules through the connecting piece, the direction of a plurality of battery modules can be retrained to the connecting piece, avoids a plurality of battery modules to take place the equipment of displacement for follow-up battery package and increases the degree of difficulty.
Description
Technical Field
The application relates to the field of battery assemblies, in particular to a battery module, a battery module assembly and a battery pack.
Background
The battery pack is formed by connecting a plurality of battery modules, and in the prior art, the shell of each battery module mainly comprises a pair of side plates, a pair of end plates, a bottom plate and a top plate, and two adjacent battery modules are fixedly connected through end plate threads. However, in the prior art, the assembly process of the battery pack is complicated, and the time is long.
Disclosure of Invention
An object of the embodiments of the present application is to provide a battery module, a battery module assembly and a battery pack, which aim to improve the problem that the existing battery module assembling process is time-consuming.
The application provides a battery module assembly, which comprises a connecting piece and a plurality of battery modules;
each battery module comprises a first end plate, a second end plate and a plurality of battery cells clamped between the first end plate and the second end plate, the first end plate is provided with a first connecting part, and each first connecting part is provided with a mounting hole;
the connection member passes through the mounting hole of each of the first connection parts and fixes the plurality of battery modules.
The connecting piece is detachably connected with the first end plate of each battery module, so that the battery module assembly can be quickly assembled according to the quantity demand of the battery modules in the battery module assembly, the first end plate and the second end plate are not easily abraded in the assembling process, and the reutilization rate of the battery modules is improved; can carry out quick replacement to battery module, improve the efficiency of equipment and change. In addition, connect a plurality of battery modules through the connecting piece, the direction of a plurality of battery modules can be retrained to the connecting piece, avoids a plurality of battery modules to take place the equipment of displacement for follow-up battery package and increases the degree of difficulty.
In some embodiments of the first aspect of the present application, the connecting member has a plurality of connecting members, and the connecting members are disposed side by side, the first end plate is provided with a plurality of the first connecting portions, a plurality of the first connecting portions are disposed at intervals, and one of the first connecting portions is correspondingly connected to one of the connecting members.
In some embodiments of the first aspect of the present application, there are at least two of the first connecting portions of each of the first end plates through which the same connecting member passes.
In some embodiments of the first aspect of the present application, the connecting member includes a screw rod and a nut, and the screw rod can sequentially pass through the mounting hole of each of the battery modules and be connected with the nut.
In some embodiments of the first aspect of the present application, the connecting portion further includes a groove communicating with the mounting hole, and the connecting member can pass through the mounting hole and be attached to a bottom wall of the groove.
In some embodiments of the first aspect of the present application, each of the first connecting portions includes two of the mounting holes, the two mounting holes are respectively located at opposite ends of the first end plate, and the groove extends from one of the mounting holes to the other of the mounting holes.
In some embodiments of the first aspect of the present application, the battery module assembly includes at least two of the connecting members;
the second end plate of each battery module is provided with a second connecting part;
one of the connecting members is detachably connected with the second connecting portion of each of the battery modules; one of the connecting members is detachably connected with the first connecting portion of each of the battery modules.
In some embodiments of the first aspect of the present application, the connector is a rigid rod.
The second aspect of the present application provides a battery pack, the battery pack includes box and first aspect the battery module subassembly, the battery module subassembly is fixed in the box.
The battery pack has the advantages of the battery module assembly, the battery module can be replaced, the battery pack can be rapidly installed due to the constraint of the connecting piece on the battery module, the connecting piece and the battery module can be detachably connected in the process of replacing the battery module, and damage to the battery module can be avoided.
The third aspect of the present application provides a battery module, which includes a first end plate, a second end plate, and a plurality of battery cells clamped between the first end plate and the second end plate;
the first end plate is provided with a mounting hole; the mounting hole can be used for a connecting piece to pass through, and the connecting piece can be detachably connected with the adjacent battery module after passing through the mounting hole.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram illustrating a first view angle of a battery module assembly according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram illustrating a second view angle of the battery module assembly according to the embodiment of the present disclosure;
fig. 3 is a schematic structural diagram illustrating a battery module provided in an embodiment of the present application;
fig. 4 shows a schematic structural diagram of a first end plate provided in an embodiment of the present application.
Icon: 100-a battery module assembly; 110-a connector; 200-a battery module; 210-a cell; 220-a first end plate; 221-a first connection; 2211-grooves; 2212-mounting holes; 230-a second end plate; 231-a second connection; 240-twist tie.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Examples
Fig. 1 shows a schematic structural diagram of a battery module assembly 100 provided in an embodiment of the present application at a first viewing angle, and fig. 2 shows a schematic structural diagram of the battery module assembly 100 provided in an embodiment of the present application at a second viewing angle.
Referring to fig. 1 and 2, the present embodiment provides a battery module assembly 100, wherein the battery module assembly 100 includes a connecting member 110 and a plurality of battery modules 200, and the plurality of battery modules 200 are detachably connected by the connecting member 110. In the present embodiment, the battery module assembly 100 includes four battery modules 200, and one battery module 200 includes two battery cells 210.
It should be noted that, in other embodiments of the present application, the battery module assembly 100 may include two, three, five, or more battery modules 200, and the present application does not limit the number of battery modules 200 in one battery module assembly 100. Accordingly, one battery module 200 may include two, three, four, or more battery cells 210, and the number of the battery cells 210 in one battery module 200 is not limited in the present application.
Fig. 3 is a schematic structural diagram of a battery module 200 according to an embodiment of the present disclosure, please refer to fig. 1 to fig. 3. The battery module 200 includes a cell 210, a first terminal plate 220, and a second terminal plate 230. The battery module 200 includes a plurality of battery cells 210, the battery cells 210 are sequentially arranged, and the first end plate 220 and the second end plate 230 are respectively abutted to two battery cells 210 located at the end; in other words, the plurality of battery cells 210 are arranged in a manner of abutting against each other along a direction in which two battery cells 210 are located at the end portion, and the first end plate 220 abuts against the end surface of the battery cell 210 located at the end portion; the second end plate 230 abuts against the end surface of the other end-located cell 210.
The first end plate 220 is provided with a first connection portion 221, and the first connection portion 221 is detachably connected to the connection member 110. The first connection part 221 is provided with mounting holes 2212, the connection member 110 may pass through the mounting holes 2212, and the first connection part 221 of each battery module 200 is detachably connected to the connection member 110.
The connection member 110 passes through the mounting hole 2212 of each first connection part 221 and fixes the plurality of battery modules 200. In other words, one connection member 110 may sequentially pass through the mounting hole 2212 of each first connection part 221 and then connect each battery module 200 in series.
Fig. 4 is a schematic structural diagram of a first end plate 220 according to an embodiment of the present disclosure, and please refer to fig. 3 and fig. 4 together. In this embodiment, after the first connection portion 221 is connected to the connection member 110, the extending direction of the connection member 110 is the same as the arrangement direction of the plurality of battery cells 210. The first terminal plate 220 is provided with two first connection parts 221, and accordingly, the battery module assembly 100 includes two connection members 110, and one first connection part 221 is detachably connected to one connection member 110.
It should be noted that in other embodiments of the present application, the number of the first connection portions 221 may be designed according to the size of the first end plate 220, for example, the first end plate 220 may include only one first connection portion 221; alternatively, the first end plate 220 may include three or more first connection parts 221.
Further, the battery module 200 further includes two bands 240 for bundling the battery cells 210, the bands 240 bundle and fix the battery cells 210, the first end plate 220, and the second end plate 230, and the two bands 240 are located at two opposite ends of the first end plate 220. The first connection portion 221 is disposed between the two bands 240, and in order to maintain uniform and stable stress, after the first connection portion 221 is connected to the connecting member 110, the connecting member 110 is parallel to the bands 240.
Referring to fig. 4 again, in the present embodiment, the first connecting portion 221 includes a groove 2211 and two mounting holes 2212, the two mounting holes 2212 are disposed at two opposite ends of the groove 2211, and the mounting holes 2212 are communicated with the groove 2211. The two mounting holes 2212 are respectively located at two opposite sides of the first end plate 220, the groove 2211 communicates with the two mounting holes 2212, and the groove 2211 extends from one mounting hole 2212 to the other mounting hole 2212.
After the first connecting portion 221 is connected to the connecting member 110, the connecting member 110 passes through the two mounting holes 2212 and fits the bottom wall of the groove 2211. Along the arrangement direction of the battery modules 200, the first end plate 220 abuts against the connecting member 110 from one end to the other end thereof. Accordingly, the connector 110 is a rod fitting into the groove 2211.
In some embodiments of the present disclosure, the connecting member 110 is a rigid rod, and the rigid rod can constrain two adjacent battery modules 200, so that any two adjacent battery modules 200 are abutted to the connecting member 110, and thus the arrangement direction of the plurality of battery modules 200 is the length direction of the rigid rod, and the plurality of battery modules 200 are prevented from being displaced or dislocated.
Referring to fig. 1 again, in the present embodiment, the connecting element 110 includes a screw and a nut, and the screw passes through the two mounting holes 2212 and abuts against the groove 2211. The screw is coupled with the nut after passing through the mounting hole 2212 of each battery module 200. In other words, the screw is sequentially passed through the mounting hole 2212 of each battery module 200, and then the screw is threadedly coupled with the nut. In the process of disassembly, the screw and the nut are disassembled, and then the screw is separated from the mounting hole 2212.
It should be noted that in other embodiments of the present application, the first connection portion 221 may include only one mounting hole 2212, and the embodiment of the present application does not limit the position of the mounting hole 2212; for example, the mounting hole 2212 may be located at the middle of the recess 2211. Further, the embodiment of the present application does not limit the number of the mounting holes 2212 provided in the first connection portion 221.
The volume occupied by the first connection portion 221 can be reduced by the arrangement of the groove 2211 and the mounting hole 2212, and after the connection member 110 is connected with the groove 2211, the groove 2211 can restrict the connection member 110, so that the relative displacement of the connection member 110 is avoided. The coupling member 110 is abutted against the recess 2211 of the plurality of battery modules 200, so that the adjacent two battery modules 200 can be prevented from being deviated.
The groove 2211 disposed on the first end plate 220 is recessed toward the battery cell 210, so as to reduce the space occupied by the first connection portion 221. In addition, the connection member 110 is connected to the first connection portion 221 by passing through the mounting hole 2212, which facilitates the detachment and installation of the connection member 110 and the first connection portion 221.
In other embodiments of the present application, the first connection portion 221 is not limited to the structure shown in fig. 4. For example, in some embodiments of the present application, the first connection portion 221 may be a through hole provided in the first end plate 220, and the through hole may allow the connection member 110 to pass through. Alternatively, the first connection part 221 may include only the groove 2211, and the connection part 110 may be snapped into the groove 2211.
Furthermore, the connection member 110 is not limited to the screw and nut structure shown in fig. 1. For example, in other embodiments, the connector 110 may be a rod with a bayonet at the end, the rod may be round, square, etc., or the connector 110 may be a rigid sheet.
Alternatively, the connecting member 110 may comprise a rod having a protrusion at one end thereof, and the end of the connecting member 110 remote from the protrusion may be detachably coupled to a screw or pin member. When the connecting member 110 is connected to the battery modules 200, the protrusions and the pins respectively abut against the first connecting portions 221 at both ends to fix the plurality of battery modules 200.
In the present embodiment, the second end plate 230 is provided with a second connection portion 231.
In the present embodiment, the second end plate 230 has the same structure as the first end plate 220, and accordingly, the second connection portion 231 and the first connection portion 221 have the same structure.
The battery module assembly 100 includes two connection members 110, one connection member 110 being detachably connected to the first connection part 221; the other connecting member 110 is detachably connected to the second connecting portion 231.
In other words, the two connection members 110 are detachably connected to opposite sides of the plurality of battery modules 200, respectively. The battery module 200 is restrained from both sides of the battery module 200.
In the present embodiment, the connection member 110 connected to the first end plate 220 includes two screws, and accordingly, the connection member 110 connected to the second end plate 230 includes two screws. It is understood that, in other embodiments of the present application, the first end plate 220 may be provided with a plurality of first connection portions 221; the second end plate 230 may be provided with a plurality of first connection parts 221, and accordingly, one first connection part 221 is connected to one connection member 110, and one second connection part 231 is connected to one connection member 110, as many connection members 110 as the first end plate 220 and the second end plate 230 are connected.
It should be noted that in other embodiments of the present application, the first end plate 220 and the second end plate 230 may have different structures. For example, the first connection portion 221 and the second connection portion 231 may not be the same.
The battery module assembly 100 provided by the embodiment of the application has at least the following advantages:
the connecting member 110 is detachably connected to the first end plate 220 located at each battery module 200, so that the battery module assembly 100 can be quickly assembled according to the number demand of the battery modules 200 in the battery module assembly 100, the first end plate 220 and the second end plate 230 are not easily abraded in the assembling process, and the reutilization rate of the battery modules 200 is improved; the battery module 200 can be rapidly replaced, improving the efficiency of assembly and replacement. In addition, the plurality of battery modules 200 are connected through the connecting member 110, and the connecting member 110 can restrict the directions of the plurality of battery modules 200, thereby preventing the plurality of battery modules 200 from being displaced to increase the difficulty in assembling the subsequent battery pack.
Further, the battery module assembly 100 provided in the embodiment of the present application may arrange the battery cells 210 according to the shape and size of the battery pack. In detail, the band 240 bundles the plurality of battery cells 210 to form one battery module 200, and the connection member 110 may connect the plurality of battery modules 200 to form one battery module assembly 100. Any number of battery cells 210 can be bound by a binding belt 240 to form a battery module 200 according to requirements; accordingly, any number of battery modules 200 may be selected to be connected by the connecting member 110 to form one battery module assembly 100, and further connected with the case to form a battery pack, as required.
The battery module assembly 100 provided by the embodiment of the application can set the number of the battery cells 210 according to the size of the battery pack, the process of connecting a plurality of battery modules 200 is simpler, and the connection process hardly damages the battery cells 210.
The application also provides a battery pack, and the battery pack includes box and foretell battery module subassembly 100, and battery module subassembly 100 installs in the box, the box is used for fixed battery module subassembly 100.
The battery pack has the advantages of the battery module assembly 100, the battery module 200 can be replaced, the battery pack can be quickly installed due to the constraint of the connecting piece 110 on the battery module 200, the connecting piece 110 is detachably connected with the battery module 200 in the process of replacing the battery module 200, and the damage to the battery module 200 can be avoided.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A battery module assembly is characterized by comprising a connecting piece and a plurality of battery modules;
each battery module comprises a first end plate, a second end plate and a plurality of battery cells clamped between the first end plate and the second end plate; the first end plate is provided with first connecting parts, and each first connecting part is provided with a mounting hole;
the connection member passes through the mounting hole of each of the first connection parts and fixes the plurality of battery modules.
2. The battery module assembly according to claim 1, wherein the connecting members are provided in plurality, and a plurality of the connecting members are arranged side by side, the first terminal plate is provided with a plurality of the first connecting portions, the plurality of the first connecting portions are arranged at intervals, and one of the first connecting portions is connected to one of the connecting members.
3. The battery module assembly according to claim 1, wherein at least two first connecting portions of each of the first end plates through which the same connecting member passes are provided.
4. The battery module assembly according to claim 1, wherein the connection member includes a screw and a nut, the screw being sequentially inserted through the mounting hole of each of the first connection parts and connected with the nut.
5. The battery module assembly of claim 1, wherein the connecting portion further comprises a groove in communication with the mounting hole, and the connecting member can pass through the mounting hole and fit against a bottom wall of the groove.
6. The battery module assembly of claim 5, wherein each of the first connecting portions includes two of the mounting holes at opposite ends of the first end plate, and the groove extends from one of the mounting holes to the other of the mounting holes.
7. The battery module assembly according to any one of claims 1 to 6, wherein the battery module assembly includes at least two of the connecting members;
the second end plate of each battery module is provided with a second connecting part;
one of the connecting members is detachably connected with the second connecting portion of each of the battery modules; one of the connecting members is detachably connected with the first connecting portion of each of the battery modules.
8. The battery module assembly of any one of claims 1-6, wherein the connecting member is a rigid rod member.
9. A battery pack, characterized in that the battery pack comprises a case and the battery module assembly according to any one of claims 1 to 8, the battery module assembly being fixed to the case.
10. A battery module is characterized by comprising a first end plate, a second end plate and a plurality of battery cells clamped between the first end plate and the second end plate;
the first end plate is provided with a mounting hole; the mounting hole can be used for a connecting piece to pass through, and the connecting piece can be detachably connected with the adjacent battery module after passing through the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011236392.3A CN112259867A (en) | 2020-11-06 | 2020-11-06 | Battery module, battery module assembly and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011236392.3A CN112259867A (en) | 2020-11-06 | 2020-11-06 | Battery module, battery module assembly and battery pack |
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| Publication Number | Publication Date |
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| CN112259867A true CN112259867A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011236392.3A Pending CN112259867A (en) | 2020-11-06 | 2020-11-06 | Battery module, battery module assembly and battery pack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113224452A (en) * | 2021-03-26 | 2021-08-06 | 厦门海辰新能源科技有限公司 | Battery pack |
| CN114899543A (en) * | 2022-04-07 | 2022-08-12 | 安克创新科技股份有限公司 | Power supply device |
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| CN205609622U (en) * | 2016-04-12 | 2016-09-28 | 宁德时代新能源科技股份有限公司 | Battery module |
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| CN114899543A (en) * | 2022-04-07 | 2022-08-12 | 安克创新科技股份有限公司 | Power supply device |
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