CN209843820U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN209843820U CN209843820U CN201921162375.2U CN201921162375U CN209843820U CN 209843820 U CN209843820 U CN 209843820U CN 201921162375 U CN201921162375 U CN 201921162375U CN 209843820 U CN209843820 U CN 209843820U
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- battery module
- battery
- end plate
- guard beam
- plate
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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 energy storage devices, in particular to a battery module, which comprises a plurality of battery monomers, side plates and end plates, wherein the side plates are arranged on two sides of the battery monomers along the width direction of the battery module; the battery module further comprises at least one protection beam, the protection beam is arranged on the outer surface of the battery monomer far away from the side plate, or the protection beam is arranged on the outer surface of the battery monomer far away from the end plate. The application provides an among the battery module, through set up the guard beam on curb plate or end plate, the mechanical strength of battery module has been improved, when setting up a plurality of battery modules that are equipped with the guard beam in the battery package box, because the mechanical strength increase of every battery module, the battery module in the battery package box receives the difficult emergence damage of external force, thereby the demand to battery package box intensity has been reduced, the process of verifying the intensity parameter of battery package box has been reduced, the development cost and the development time of battery package box have been reduced.
Description
Technical Field
The application relates to the field of energy storage devices, in particular to a battery module.
Background
At present, in the new energy automobile industry, a plurality of groups of battery modules are usually placed in a battery pack box body to form a battery pack.
In order to prevent the battery module from being damaged due to external force, the battery pack box body needs to have higher strength, but because the design of the battery pack box body is usually separated from the design of the battery module, the box body needs to be redesigned according to different size requirements due to the difference of the space sizes of the battery packs given by different finished vehicles, and the strength and other parameters of the battery packs need to be verified again, so that the development cost is higher, and the development time is longer.
SUMMERY OF THE UTILITY MODEL
The application provides a battery module to reduce the development cost of battery package box, shorten the development time of battery package box.
The present application provides in a first aspect a battery module, including: the battery module comprises a plurality of battery monomers, side plates and end plates, wherein the side plates are arranged on two sides of the battery monomers along the width direction of the battery module;
the battery module still includes at least one protection roof beam, protection roof beam set up in the curb plate is kept away from the free surface of battery, or protection roof beam set up in the end plate is kept away from the free surface of battery.
Preferably, the protective beam comprises a triangular frame formed by connecting three connecting plates end to end, and a hollow cavity is formed in the triangular frame.
Preferably, a plurality of reinforcing ribs are arranged in the hollow cavity, and the plurality of reinforcing ribs form a grid structure.
Preferably, the vertex angle of the triangular frame, which is far away from the battery cell, is a rounded angle.
Preferably, the guard beam is disposed on an outer surface of the end plate, and the end plate and the guard beam are integrally formed.
Preferably, the guard beam is arranged on the outer surface of the end plate, and the end plate is detachably connected with the guard beam.
Preferably, the end plate is connected with the guard beam through a plug assembly.
Preferably, the plug assembly comprises a plug plate formed on the outer surface of the end plate and a slot formed on the protection beam, and the plug plate is inserted into the slot; or the like, or, alternatively,
the plug-in assembly comprises a plug board formed on the protective beam and a slot formed on the end plate, and the plug board is inserted into the slot.
Preferably, a hollow cavity is formed in the protective beam, a plurality of reinforcing ribs used for reinforcing the structural strength of the battery module are arranged in the hollow cavity, and the plurality of reinforcing ribs form a grid structure.
Preferably, an orthographic projection of the guard beam in the length direction of the battery module coincides with an orthographic projection of the end plate in the length direction of the battery module.
Preferably, the orthographic projection of the protection beam in the length direction of the battery module falls into the orthographic projection of the end plate in the length direction of the battery module, and the projection area of the protection beam is not less than half of the projection area of the end plate.
The technical scheme provided by the application can achieve the following beneficial effects:
in the battery module that this application provided, the battery module includes a plurality of battery monomer, sets up the curb plate in a plurality of battery monomer both sides and sets up the end plate in a plurality of battery monomer both sides along the length direction of battery module along the width direction of battery module, and the battery module still includes the protection roof beam, and the protection roof beam setting is kept away from on the surface of battery elevator or is set up and keep away from on the free surface of battery at the end plate at the curb plate. Through set up the guard beam on curb plate or end plate, the mechanical strength of battery module has been improved, when setting up a plurality of battery modules that are equipped with the guard beam in the battery package box, because the mechanical strength increase of every battery module, make the anti external force performance reinforcing of the battery module in the battery package box, receive the difficult emergence damage of external force, thereby the demand to battery package box intensity has been reduced, the process of verifying the strength parameter of battery package box has been reduced, and then the development cost and the development time of battery package box have been reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram illustrating a connection manner between a guard beam and an end plate in a battery module according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram illustrating another connection manner between a guard beam and an end plate in a battery module according to an embodiment of the present disclosure;
fig. 4 is a cross-sectional view illustrating another connection manner of a guard beam and an end plate in a battery module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a structure of a guard beam in a battery module according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram illustrating another connection manner between a guard beam and an end plate in a battery module according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of another structure of a guard beam in a battery module according to an embodiment of the present disclosure.
Reference numerals:
1-a battery module;
11-a battery cell;
12-side plates;
13-an end plate;
131-inserting plate;
14-a guard beam;
141-slot;
142-a first surface;
143-reinforcing ribs;
144-a via hole;
145-connecting plate;
146-round corners;
15-adhesive glue;
16-bolt.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. 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.
The embodiment of the application provides a battery module 1, which comprises a plurality of battery monomers 11, side plates 12 arranged on two sides of the plurality of battery monomers 11 along the width direction (Y direction) of the battery module, and end plates 13 arranged on two ends of the plurality of battery monomers 11 along the length direction (X direction) of the battery module;
the battery module 1 further includes at least one protection beam 14, and the protection beam 14 is disposed on the outer surface of the side plate 12 away from the battery cell 11, or the protection beam 14 is disposed on the outer surface of the end plate 13 away from the battery cell 11.
In the battery module 1 provided by the present application, the battery module 1 includes a plurality of battery cells 11, a side plate 12 disposed at an edge side of the plurality of battery cells 11, and an end plate 13 disposed at an end of the plurality of battery cells 11. The battery module 1 further includes a guard beam 14, and the guard beam 14 is provided on an outer surface of the side plate 12 away from the battery cell 11 or on an outer surface of the end plate 13 away from the battery cell 11. Through set up guard beam 14 on curb plate 12 or end plate 13, the mechanical strength of battery module 1 has been improved, when setting up a plurality of battery modules 1 that are equipped with guard beam 14 in the battery package box, because the mechanical strength increase of every battery module 1, make the anti external force performance reinforcing of battery module 1 in the battery package box, receive the difficult emergence damage of external force, thereby the demand to battery package box intensity has been reduced, the process of verifying the intensity parameter of battery package box has been reduced, and then the development cost and the development time of battery package box have been reduced.
In this application, take two end plates 13 to be away from one side of battery cell 11 to set up guard beam 14 as an example, fig. 1 is a schematic structural diagram of the battery module provided in this application embodiment, refer to fig. 1, guard beam 14 can be two, set up in the relative surface of end plate 13 respectively. Because the size of end plate 13 on battery module length direction (X is to) is less than the size of curb plate 12 on battery module width direction (Y is to), set up guard beam 14 in end plate 13, can reduce guard beam 14's occupation space, and also can satisfy guard beam 14's intensity requirement simultaneously.
In order to ensure the stability and mechanical strength of the protection beam 14, the protection beam 14 includes a triangular frame formed by connecting three connecting plates 145 end to end, a hollow chamber is formed in the triangular frame, a plurality of reinforcing ribs 143 used for reinforcing the structural strength of the battery module 1 are arranged in the hollow chamber, and the plurality of reinforcing ribs 143 form a grid structure.
The grid structure is that, divide the even closely adjacent net array of size into through the well plenum chamber that strengthening rib 143 formed in with the triangle-shaped frame, the embodiment of the utility model provides an, contained angle between the strengthening rib of equidirectional is 90 degrees, but is not limited to this, and contained angle between the strengthening rib can also be 60 degrees, 120 degrees etc. do not do the injecing here.
The hollow cavity is formed in the protective beam 14, the reinforcing ribs 143 are arranged in the hollow cavity to form the protective beam 14 of the grid structure, the protective beam 14 of the grid structure can play a role in buffering external force when receiving external acting force, so that influence of the external force on the battery cells 11 is reduced, and meanwhile, the strength of the protective beam 14 is increased due to the arrangement of the reinforcing ribs 143, so that deformation and damage are not prone to occurring when the protective beam 14 receives the external force. The hollow chamber is arranged to absorb energy when the protective beam 14 is impacted, so as to protect the battery cells 11.
Fig. 5 is a schematic structural diagram of a structure of a guard beam in a battery module according to an embodiment of the present application, and as shown in fig. 5, as a structural manner of the guard beam, a front projection of the guard beam 14 in a length direction (X direction) of the battery module coincides with a front projection of the end plate 13 in the length direction (X direction) of the battery module, and a vertex angle of the triangular frame away from a battery cell is a rounded corner 146.
The orthographic projection of the protection beam 14 in the length direction (X direction) of the battery module coincides with the orthographic projection of the end plate 13 in the length direction (X direction) of the battery module, namely the contact surface of the protection beam 14 with the end plate 13 is identical to the outer surface shape of the end plate 13 in size, when the battery module 1 is subjected to external force, the protection beam 14 can play a role in buffering, the situation that the end plate 13 is directly influenced by the external force to cause the damage of the battery cell 11 is avoided, and the damage of the battery cell 11 under the action of the external force can be effectively prevented.
And, the apex angle that deviates from the battery monomer in the triangle-shaped frame is fillet 146, has avoided the protecting beam apex angle to cause the injury to operating personnel in the assembling process, has improved the security of protecting beam, simultaneously, sets up this apex angle into the fillet, receives the exogenic action as the protecting beam, can avoid apex angle department stress concentration, and prevents that apex angle department from producing damages such as serious wearing and tearing.
Fig. 7 is a schematic structural diagram of another structure of a guard beam in a battery module according to an embodiment of the present disclosure, and as shown in fig. 7, as another structural manner of the guard beam, an orthographic projection of the guard beam 14 in a length direction (X direction) of the battery module falls into an orthographic projection of an end plate 13 in the length direction (X direction) of the battery module, and an area of the orthographic projection of the guard beam 14 is not less than half of an area of the orthographic projection of the end plate 13, in an embodiment of the present disclosure, the area of the orthographic projection of the guard beam 14 is less than the area of the orthographic projection of the end plate 13.
Above-mentioned guard beam 14 is not less than half of the orthographic projection's of end plate 13 area and is less than the orthographic projection's of end plate 13 area at the length direction (X of battery module), when battery module 1 receives external force, guard beam 14 can play the effect of buffering, it leads to battery cell 11 impaired to have avoided end plate 13 directly to receive the effect of external force, can prevent effectively that battery cell 11 from receiving the damage under the external force effect, and guard beam 14's orthographic projection area is less than the orthographic projection area of end plate, the manufacturing cost of guard beam 14 has been reduced.
Fig. 2 is a schematic structural diagram of a connection manner between a guard beam and an end plate in a battery module according to an embodiment of the present disclosure, and as shown in fig. 2, an end plate 13 and a guard beam 14 are integrally formed.
In the connection mode of the end plate 13 and the guard beam 14, the end plate 13 and the guard beam 14 are integrally formed, and then the end plate 13 and the side plate 12 are welded, so that the structure is simple, and the cost is low.
In order to facilitate installation, maintenance or replacement of the guard beam 14, as shown in fig. 1, the end plate 13 is detachably connected to the guard beam 14, and in the embodiment of the present invention, the end plate 13 is connected to the guard beam 14 by a plug assembly. Realize being connected of end plate 13 and guard beam 14 through the plug-in components, in case battery module 1 receives the vibration when, a small amount of relative motion can take place for guard beam 14 and end plate 13, avoids the damage that rigid connection caused end plate 13, influences battery cell 11's performance.
The structure of the plug assembly may have various forms, and one possible implementation is that the plug assembly includes a plug plate 131 formed on the outer surface of the end plate 13 and a slot 141 formed on the protective beam 14. Of course, the slots may be provided on the outer surface of the end plate 13, and the insert plate may be provided on the guard beam 14, which is not further limited.
The guard beam 14 may also be connected to the end plate 13 by fasteners, which may be bolts or rivets. Or, the guard beam 14 may be further connected to the end plate 13 by a fixing member after being connected by the plug assembly, so as to improve the connection strength between the two.
As a possible implementation manner, the insertion plate 131 has a rectangular structure, and of course, the insertion plate 131 may have other shapes as long as it can be tightly inserted in the insertion groove 141 of the protection beam 14.
In the above implementation manner, the insertion plate 131 has a rectangular structure, and when the insertion plate 131 is matched with the insertion groove 141, the rectangular insertion plate 131 is inserted into the insertion groove 141, so that the rotational freedom of the guard beam 14 and the freedom of movement in the height direction (Z direction) of the battery module 1 are limited, the positioning between the end plate 13 and the guard beam 14 is realized, and the operation when the insertion plate 131 is further connected with the insertion groove 141 through the bolt 16 is facilitated.
In order to connect the insert plate 131 and the slot 141 through the bolt 16, a through hole 144 is formed in the protective beam 14 at a position corresponding to a position where the bolt 16 is installed, the through hole 144 is communicated with the outside, and the diameter of the through hole 144 is larger than that of a bolt cap, so that when the bolt 16 is put into the protective beam 14 from the outside, there is enough space for operating an assembly tool (for example, a movable clamp or a wrench is used to put the bolt 16 into a position where the insert plate 131 is located through the through hole 144), thereby facilitating the assembly of the end plate 13 and the protective beam 14.
As shown in fig. 1, in the connection manner between the end plate 13 and the guard beam 14, the end plate 13 is detachably connected to the guard beam 14, the insertion plate 131 formed on the end plate 13 is matched with the insertion groove 141 formed on the guard beam 14, and the insertion plate 131 is connected to the insertion groove 141 through the bolt 16 at the position where the insertion plate 131 is matched with the insertion groove 141, so as to connect the end plate 13 to the guard beam 14, the end plate 13 is connected to the guard beam 14 through the bolt 16, so that the detachable connection between the end plate 13 and the guard beam 14 is realized, and the assembly and later maintenance of the end plate 13 and the guard beam 14 are facilitated, the structure is simple, and the operation is convenient.
As a possible implementation manner, an adhesive 15 is provided between the outer surface of the end plate 13 and the guard beam, and the end plate 13 is bonded to the guard beam 14 by the adhesive 15.
In the above-mentioned implementation, when assembling end plate 13 and guard beam 14, scribble on the surface of end plate 13 and establish adhesive 15, then bond guard beam 14 on the surface of end plate 13 through adhesive 15, directly bond end plate 13 and guard beam 14 in this application embodiment, realize being connected of end plate 13 and guard beam 14, easy operation, the cost is lower.
Fig. 3 is a schematic structural view illustrating another connection method of the guard beam and the end plate in the battery module according to the embodiment of the present disclosure, and fig. 4 is a cross-sectional view illustrating another connection method of the guard beam and the end plate in the battery module according to the embodiment of the present disclosure.
As shown in fig. 3 to 4, as another possible implementation manner, the end plate 13 and the guard beam 14 may also be connected by a plug assembly, and the outer surface of the end plate 13 is coated with an adhesive 15 for bonding with the guard beam 14.
It will be appreciated by those skilled in the art that in the above implementation, the connection between the end plate 13 and the guard beam 14 may be achieved only by the adhesive 15. In this embodiment, the end plate 13 and the guard beam 14 are further provided with an adhesive 15 on the basis of the connection by the plug assembly, so that the connection strength between the two can be improved.
Specifically, the plug assembly includes a plug plate 131 formed on an outer surface of the end plate 13 and a socket 141 formed on the guard beam 14.
Furthermore, the inserting plate 131 and the inserting groove 141 can be connected by a fixing member, wherein the fixing member includes a bolt or a rivet.
Specifically, the insertion plate 131 has a rectangular structure.
The insert plate 131 is of a rectangular structure, and when the insert plate 131 is matched with the insert groove 141, the rectangular insert plate 131 is inserted into the insert groove 141, so that the rotational freedom of the protective beam 14 and the movement freedom of the battery module 1 in the height direction (Z direction) are limited, the positioning between the end plate 13 and the protective beam 14 is realized, the dislocation generated when the end plate 13 is bonded with the protective beam 14 is effectively prevented, and the assembly yield of the end plate 13 and the protective beam 14 is ensured.
In order to connect the insert plate 131 with the slot 141 through the bolt 16, a through hole 144 is formed in the protective beam 14 at a position corresponding to the position of the mounting bolt 16, the through hole 144 is communicated with the outside, and the diameter of the through hole 144 is larger than that of the bolt cap, so that the bolt 16 can be conveniently put into the protective beam 14 from the outside, and the assembly of the end plate 13 and the protective beam 14 is facilitated.
When end plate 13 and guard beam 14 pass through bolted connection 16, scribble on end plate 13 towards guard beam 14's surface and established bonding glue 15, bond end plate 13 and guard beam 14 to it is more stable to guarantee to be connected between end plate 13 and guard beam 14, when having improved battery module 1's mechanical strength, has increased battery module 1's structural stability.
Fig. 6 is a schematic structural diagram of another connection manner of the guard beam and the end plate in the battery module according to the embodiment of the present disclosure, as shown in fig. 6 to 7, fig. 6 is a schematic structural diagram of another structure of the guard beam when the guard beam is connected to the end plate, an orthographic projection area of the guard beam 14 is smaller than an orthographic projection area of the end plate 13, a first surface 142 of the guard beam 14, which intersects with the end plate 13, is a plane and is perpendicular to the end plate 13, and a through hole for mounting the bolt 16 is formed on the first surface 142.
In the above connection manner between the protection beam 14 and the end plate 13, since the protection beam 14 is formed with the first surface 142, the operation when the insertion plate 131 is in threaded connection with the protection beam 14 is simpler and more convenient, the time required when the insertion plate 131 is in threaded connection with the protection beam 14 is saved, and in this embodiment, the protection beam 14 protects the battery cell 11 by the protection beam 14, and simultaneously, the cost of the protection beam 14 is also saved.
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, comprising: the battery module comprises a plurality of battery monomers, side plates and end plates, wherein the side plates are arranged on two sides of the battery monomers along the width direction of the battery module;
the battery module still includes at least one protection roof beam, protection roof beam set up in the curb plate is kept away from the free surface of battery, or protection roof beam set up in the end plate is kept away from the free surface of battery.
2. The battery module according to claim 1, wherein the guard beam comprises a triangular frame formed by connecting three connecting plates end to end, and a hollow cavity is formed in the triangular frame.
3. The battery module according to claim 2, wherein a plurality of reinforcing ribs are provided in the hollow chamber, and the plurality of reinforcing ribs form a grid structure.
4. The battery module according to claim 2, wherein corners of the triangular frame facing away from the battery cells are rounded.
5. The battery module according to claim 1, wherein the guard beam is disposed on an outer surface of the end plate, and the end plate is integrally formed with the guard beam.
6. The battery module according to claim 1, wherein the guard beam is disposed on an outer surface of the end plate, and the end plate is detachably connected to the guard beam.
7. The battery module according to claim 6, wherein the end plates are connected to the guard beams by a plug assembly.
8. The battery module according to claim 7, wherein the plug assembly comprises a plug plate formed on an outer surface of the end plate and a slot formed on the guard beam, the plug plate being inserted into the slot; or the like, or, alternatively,
the plug-in assembly comprises a plug board formed on the protective beam and a slot formed on the end plate, and the plug board is inserted into the slot.
9. The battery module according to claim 1, wherein an orthographic projection of the guard beam in the lengthwise direction of the battery module coincides with an orthographic projection of the end plate in the lengthwise direction of the battery module.
10. The battery module according to claim 1, wherein an orthographic projection of the guard beam in the lengthwise direction of the battery module falls within an orthographic projection of the end plate in the lengthwise direction of the battery module, and a projected area of the guard beam is not less than half of a projected area of the end plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162375.2U CN209843820U (en) | 2019-07-23 | 2019-07-23 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921162375.2U CN209843820U (en) | 2019-07-23 | 2019-07-23 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843820U true CN209843820U (en) | 2019-12-24 |
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ID=68899941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921162375.2U Active CN209843820U (en) | 2019-07-23 | 2019-07-23 | Battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021023079A1 (en) * | 2019-08-08 | 2021-02-11 | 宁德时代新能源科技股份有限公司 | Battery pack and device using battery pack |
-
2019
- 2019-07-23 CN CN201921162375.2U patent/CN209843820U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021023079A1 (en) * | 2019-08-08 | 2021-02-11 | 宁德时代新能源科技股份有限公司 | Battery pack and device using battery pack |
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