CN219457851U - Battery module shell and battery module comprising same - Google Patents
Battery module shell and battery module comprising same Download PDFInfo
- Publication number
- CN219457851U CN219457851U CN202223466138.XU CN202223466138U CN219457851U CN 219457851 U CN219457851 U CN 219457851U CN 202223466138 U CN202223466138 U CN 202223466138U CN 219457851 U CN219457851 U CN 219457851U
- Authority
- CN
- China
- Prior art keywords
- battery module
- groove
- battery
- shell
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery module shell and a battery module comprising the same, wherein the battery module shell comprises at least two side plates and a bottom plate, the at least two side plates are oppositely arranged, the bottom plate is connected to the lower end of the side plates, a groove is arranged in the inner side surface of at least one side plate which is oppositely arranged, and the groove is oppositely arranged with a battery cell stacking body of the battery module; the adhesive layer is arranged in the groove, the thickness of the adhesive layer is smaller than the depth of the groove in the direction perpendicular to the side plates, when the battery cell is used, the groove can accommodate the deformation of the battery cell in part of the battery module, the stress of the battery module shell is reduced, and the adhesive layer is arranged in the groove, so that the battery cell stack body is not adhered with the adhesive layer in the process of placing the battery module shell into the battery module shell, and the battery cell stack body is convenient to place into the shell; after the volume of the battery cell stacking body expands, the outer surface of the battery cell stacking body is adhered to the adhesive layer, so that the battery module can be prevented from being vibrated, and the cycle service life of the battery cell is prolonged.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery module shell and a battery module comprising the same.
Background
When the battery module is assembled, the battery cell stacking body needs to be pushed in from top to bottom in the height direction or pushed out into the battery module shell from outside in the length direction; if the inner surface of the battery module shell is coated with glue, when the battery cell stacking body is pushed into the shell, foam on two sides of the battery module can be adhered to the battery module shell, so that the battery cell stacking body is inconvenient to assemble to the battery module shell; in addition, the cell stack body is easy to generate folds in the assembly process, and the cycle life of the cell is influenced by uneven stress on the large surface of the cell in the cycle process of the cell. If the inner surface of the battery module shell and the battery cells or foam on the two most sides are not glued, when the battery module is vibrated and impacted, the battery cell stacking body and the battery module shell are easy to move in a staggered manner, so that the integral rigidity of the battery module is reduced, and the connecting sheet is broken or the module is deformed.
Disclosure of Invention
The utility model aims to solve the technical problems that the inner surface of a shell of a battery module is coated with glue to cause inconvenient assembly of the battery module and the cycle life of a battery core is easy to influence in the prior art, and provides the battery module shell and the battery module comprising the battery module shell.
The utility model solves the technical problems by the following technical scheme:
the battery module shell comprises at least two side plates and a bottom plate, wherein the at least two side plates are oppositely arranged, the bottom plate is connected to the lower end of the side plates, a groove is formed in the inner side surface of at least one side plate, and the groove is oppositely arranged with a battery cell stacking body of the battery module;
an adhesive layer is arranged in the groove, and the thickness of the adhesive layer is smaller than the depth of the groove in the direction perpendicular to the side plate.
In the scheme, at least two side plates and a bottom plate form a shell of the battery module, the inner side surfaces of the side plates are provided with grooves, the grooves are opposite to the battery cell stacking bodies of the battery module, when the battery module is used, the battery cells expand, the grooves can accommodate deformation of part of the battery stacking bodies, the stress of the shell of the battery module is reduced, and the structural rigidity of the shell of the battery module is improved; the adhesive layer is arranged in the groove, and the thickness of the adhesive layer is smaller than that of the groove, so that the outer side of the battery cell stack body cannot be adhered to the adhesive layer when the battery cell stack body of the battery module is placed in the battery module shell, and the battery cell stack body is placed in the battery module shell conveniently; in the use of the battery cell, after the volume of the battery cell stacking body expands, the outer surface of the battery cell stacking body is adhered to the adhesive layer, so that the battery module can be prevented from vibrating in the use process, the battery cell stacking body of the battery module is prevented from sliding relative to the shell of the battery module after the shell of the battery module is impacted, and the overall cycle service life of the battery module is prolonged.
The battery module comprises the battery module shell, and further comprises a battery cell stacking body which is arranged in a space surrounded by the battery module shell.
In the scheme, the battery module comprises a battery module shell and a battery cell stacking body, at least two side plates and a bottom plate form the battery module shell, the inner side surfaces of the side plates are provided with grooves, the grooves are opposite to the battery cell stacking body of the battery module, when the battery module is used, the battery cells expand, the grooves can accommodate the deformation of the battery cell stacking body in part of the battery module, the stress of the battery module shell is reduced, and the structural rigidity of the battery module shell is improved; the adhesive layer is arranged in the groove, and the thickness of the adhesive layer is smaller than that of the groove, so that the outer side of the battery cell stack body cannot be adhered to the adhesive layer when the battery cell stack body of the battery module is placed in the battery module shell, and the battery cell stack body is placed in the battery module shell conveniently; in the use of the battery cell, after the volume of the battery cell stacking body expands, the outer surface of the battery cell stacking body is adhered to the adhesive layer, so that the battery module can be prevented from vibrating in the use process, the battery cell stacking body of the battery module is prevented from sliding relative to the shell of the battery module after the shell of the battery module is impacted, and the overall cycle service life of the battery module is prolonged.
The utility model has the positive progress effects that: the battery module comprises a battery module shell, at least two side plates and a bottom plate, wherein the inner side surface of each side plate is provided with a groove, the grooves are arranged opposite to a battery cell stacking body of the battery module, when the battery module is used, the battery cells expand, the grooves can accommodate the deformation of the battery cell stacking body in part of the battery module, the stress of the battery module shell is reduced, and the structural rigidity of the battery module shell is improved; the adhesive layer is arranged in the groove, and the thickness of the adhesive layer is smaller than that of the groove, so that the outer side of the battery cell stack body cannot be adhered to the adhesive layer when the battery cell stack body of the battery module is placed in the battery module shell, and the battery cell stack body is placed in the battery module shell conveniently; in the use of the battery cell, after the volume of the battery cell stacking body expands, the outer surface of the battery cell stacking body is adhered to the adhesive layer, so that the battery module can be prevented from vibrating in the use process, the battery cell stacking body of the battery module is prevented from sliding relative to the shell of the battery module after the shell of the battery module is impacted, and the overall cycle service life of the battery module is prolonged.
Drawings
Fig. 1 is a schematic perspective view of a battery module according to an embodiment of the utility model.
Fig. 2 is a schematic front view of a battery module case according to an embodiment of the present utility model.
Fig. 3 is a schematic front sectional view of a battery module case according to an embodiment of the present utility model.
Fig. 4 is a schematic perspective view of a battery module case according to an embodiment of the present utility model.
Description of the reference numerals
Battery module case 1
Side plate 2
Bottom plate 3
Groove 4
Cell stack 5
Adhesive layer 6
Cover plate 7
Battery module 8
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
The embodiment provides a battery module housing 1, as shown in fig. 1-4, the battery module housing 1 includes two side plates 2 and a bottom plate 3, the two side plates 2 are oppositely arranged, the bottom plate 3 is connected to the lower end of the side plate 2, a groove 4 is arranged in the inner side surface of at least one side plate 2 oppositely arranged, and the groove 4 is oppositely arranged with a battery cell stack 5 of a battery module 8; an adhesive layer is provided in the recess 4, and the thickness of the adhesive layer 6 is smaller than the depth of the recess 4 in a direction perpendicular to the side plates 2.
The battery module 8 is formed by at least two side plates 2 and a bottom plate 3, a groove 4 is formed in the inner side surface of the side plate 2, the groove 4 is arranged opposite to the battery cell stacking body 5 of the battery module 8, when the battery module 8 is used, the battery cells expand, the groove 4 can accommodate the deformation of the battery cell stacking body 5 in part of the battery module 8, the stress of the battery module shell 1 is reduced, and the structural rigidity of the battery module shell 1 is improved; the adhesive layer 6 is arranged in the groove 4, and the thickness of the adhesive layer 6 is smaller than that of the groove 4, so that the outer side of the battery cell stack 5 cannot be adhered to the adhesive layer 6 when the battery cell stack 5 of the battery module 8 is placed in the battery module shell 1, and the battery cell stack 5 is placed in the battery module shell 1 conveniently; in the use process of the battery cell, after the volume of the battery cell stacking body 5 expands, the outer surface of the battery cell stacking body 5 is adhered to the adhesive layer 6, so that the battery module 8 can be prevented from vibrating in the use process, the battery cell stacking body 5 of the battery module 8 is prevented from sliding relative to the shell of the battery module 8 after the shell of the battery module 8 is impacted, and the overall cycle service life of the battery module is prolonged.
Wherein, the material of the bonding layer 6 is solid glue or liquid glue. In this embodiment, as shown in fig. 1, foam is further disposed on the outer side of the battery cell stack 5, grooves 4 are disposed on the inner surfaces of the two opposite side plates 2, after the battery cell stack 5 is placed in the battery module housing 1, the foam of the battery cell stack 5 is adhered to the adhesive layer 6 of the battery module housing 1, so that the rigidity of the battery module 8 is improved, and after the battery cell stack 5 of the battery module 8 circulates, the thickness of the electrode plate becomes thicker or gas is generated to increase the thickness.
In a preferred embodiment, the groove 4 is provided in the middle of the side plate 2, and the extending direction of the groove 4 may be parallel to the surface of the bottom plate 3.
In other preferred embodiments, the groove 4 is located in the middle of the side plate 2, and the extending direction of the groove 4 may be perpendicular to the plane of the bottom plate 3.
In the cycle process of charging and discharging in use, the cell stack 5 of the battery module 8 mainly bulges and expands at the middle part of the battery module 8, the groove 4 is arranged at the middle part of the side plate 2, and the groove 4 can accommodate the volume expansion of part of the battery module 8; when the cell stack 5 of the battery module 8 is placed in the battery module housing 1 along the direction parallel to the bottom plate 3, the groove 4 extends in the plane parallel to the bottom plate 3, so that the cell stack 5 of the battery module 8 is placed in the battery module housing 1; when the cell stack 5 of the battery module 8 is placed in the battery module case 1 along the direction perpendicular to the bottom plate 3, the grooves 4 extend in the plane perpendicular to the bottom plate 3, which is also convenient for placing the cell stack 5 of the battery module 8 in the case of the battery module 8.
In a preferred embodiment, the depth of the groove 4 and/or the width of the groove 4 decreases in a direction perpendicular to the bottom plate 3, extending along the middle of the side plate 2 towards both ends of the side plate 2.
Because in the direction perpendicular to the bottom plate 3, in the process of extending along the middle part of the side plate 2 to the two ends of the side plate 2, the deformation of the cell stack 5 of the battery module 8 in the use process is smaller and smaller, the depth of the groove 4 is deeper, the groove 4 is wider, the deformation degree of the battery module 8 which can be accommodated is larger, and by adopting the technical scheme, the deformation of the battery module 8 in the use process can be better resisted, and the strength and the rigidity of the battery module shell 1 are better improved.
In a preferred embodiment, at least three grooves 4 with equal width and/or equal depth are arranged on the side plate 2 at intervals along the direction perpendicular to the bottom plate 3, and the arrangement of a plurality of grooves 4 can also prevent the local size of the battery module housing 1 from being oversized, and influence the volume of the battery module housing 1 or influence the assembly of the battery module housing 1 and the corresponding equipment.
In this embodiment, two grooves 4 with equal width and/or equal depth are arranged on the side plate 2 at intervals along the direction perpendicular to the bottom plate 3, and two grooves 4 with equal width and/or equal depth are arranged on the side plate 2 at intervals along the direction of disposing and the bottom plate 3, so that the grooves 4 on the side plate 2 can be conveniently processed in the process of integrally manufacturing the side plate 2, and at least two grooves 4 are arranged for accommodating volume expansion occurring in the whole use process of part of the battery module 8 and vibration and impact possibly occurring when the battery module 8 is mounted on other equipment; providing two grooves 4 also prevents the local size of the battery module case 1 from being excessively large, affecting the volume of the battery module case 1 or affecting the assembly of the battery module case 1 and its corresponding equipment.
In a preferred embodiment, the recess 4 is provided with a glue, which may be a solid glue or a liquid glue. When the colloid in the groove 4 is solid, the volume of the battery module 8 which can be prevented is larger, the impact of the battery module 8 when vibration occurs can be absorbed, but the whole structure is more stable; when the gel in the groove 4 is liquid gel, the deformation degree of the liquid gel is large, so that more energy of impact vibration received by the battery module 8 can be absorbed or the battery module 8 can be resisted to be deformed more in the using process. In this embodiment, the double-sided adhesive tape is preferably selected, and if the liquid adhesive tape is solidified, the adhesive tape can be kept in a long-time bonding state, or can be selected.
In a preferred embodiment, the depth of the recess 4 is 5-25mm in a direction perpendicular to the side plates 2. When the depth of the groove 4 is set to be 5mm, the whole volume of the battery cell stack 5 installed on the corresponding battery module shell 1 is smaller; when the depth of the groove 4 is 25mm, the entire volume of the battery cell stack 5 mounted to the corresponding battery module case 1 may be larger. The depth of the recess 4 is set in the range of 5-25mm, and different kinds of cell stacks 5 can be placed.
In a preferred embodiment, the battery module case 1 is integrally formed, and the process for forming the battery module case 1 may select one of the following three schemes: firstly, the plastic can be directly extruded and formed, and the groove 4 and the groove are integrally formed; secondly, machining a glue groove on the flat plate before bending, and bending again; thirdly, machining is carried out on the inner surface of the U-shaped shell after bending.
In a preferred embodiment, the number of the grooves 4 is at least one, the projection area of at least one groove 4 in the plane of the corresponding side plate 2 is larger than half of the surface area of the corresponding side plate 2, and the projection area of the groove 4 on the corresponding side plate 2 occupies half of the total area of the side plate 2, so that the expansion of the cell stack 5 of the battery module 8 or the impact or vibration received by the cell stack 5 of the battery module 8 in the use process can be resisted with good flexibility.
In this embodiment, the battery module case 1 further includes a cover plate 7, the cover plate 7 is disposed above the side plate 2, and the cover plate 7 is connected to the side plate 2 by welding or bolting. The battery module shell 1 further comprises a cover plate 7, as shown in fig. 1, the cover plate 7 can prevent external impurities from entering the battery module 8 to influence the normal charge and discharge of the battery module 8, and the cover plate 7 can be welded on the side plate 2, so that the battery module 8 and the battery module shell 1 are taken as a whole, the battery module 8 is convenient to detach and replace, and the groove 4 can absorb the expansion displacement of the battery core in the initial stage of expansion, thereby reducing the tensile force born by a welding line between the battery module shell and the cover plate 7 and improving the strength of the module; the cover plate 7 can be connected with the side plate 2 through bolts, so that the cover plate 7 can be conveniently detached from the housing of the battery module 8, and the battery module housing 1 and the battery module 8 cell stack 5 can be conveniently detached.
As shown in fig. 1, the present embodiment further provides a battery module 8, where the battery module 8 includes the battery module housing 1 as described above, and the battery module 8 further includes the battery cell stack 5, and the battery cell stack 5 is disposed in a space enclosed by the battery module housing 1. The battery module 8 comprises a battery module shell 1 and a battery cell stacking body 5, two side plates 2 and a bottom plate 3 form a shell of the battery module 8, two grooves 4 are formed in the inner side surface of each side plate 2, the grooves 4 are opposite to the battery cell stacking body 5 of the battery module 8, when the battery module 8 is used, the battery cells expand, the grooves 4 can accommodate the deformation of the battery cells in part of the battery module 8, the stress of the battery module shell 1 is reduced, and the structural rigidity of the battery module shell 1 is improved; the adhesive layer 6 is arranged in the groove 4, and the thickness of the adhesive layer 6 is smaller than that of the groove 4, so that the outer side of the battery cell stack 5 cannot be adhered to the adhesive layer 6 when the battery cell stack 5 of the battery module 8 is placed in the battery module shell 1, and the battery cell stack 5 is placed in the battery module shell 1 conveniently; in the use process of the battery cell, after the volume of the battery cell stacking body 5 expands, the outer surface of the battery cell stacking body 5 is adhered to the adhesive layer 6, so that the battery module 8 can be prevented from vibrating in the use process, the battery cell stacking body 5 of the battery module 8 is prevented from sliding relative to the shell of the battery module 8 after the shell of the battery module 8 is impacted, and the overall cycle service life of the battery module is prolonged.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. A battery module case, characterized in that the battery module case comprises:
the battery module comprises at least two side plates and a bottom plate, wherein the at least two side plates are oppositely arranged, the bottom plate is connected to the lower end of the side plates, a groove is formed in the inner side surface of at least one side plate, and the groove is used for being oppositely arranged with a battery cell stacking body of the battery module;
an adhesive layer is arranged in the groove, and the thickness of the adhesive layer is smaller than the depth of the groove in the direction perpendicular to the side plate.
2. The battery module case according to claim 1, wherein the groove is provided in the middle of the side plate, and the extending direction of the groove is parallel to the plane of the bottom plate; or alternatively, the first and second heat exchangers may be,
the groove is positioned in the middle of the side plate, and the extending direction of the groove is perpendicular to the plane of the bottom plate.
3. The battery module case according to claim 1 or 2, wherein the side plate is provided with a plurality of grooves in a direction perpendicular to the bottom plate, extending along the middle of the side plate toward both ends of the side plate, the depths of the plurality of grooves and/or the widths of the grooves decreasing.
4. The battery module case according to claim 1, wherein at least two grooves of equal width and/or equal depth are provided on the side plate at intervals in a direction perpendicular to the bottom plate.
5. The battery module housing of claim 1, wherein the adhesive layer is made of solid glue or liquid glue.
6. The battery module case according to claim 1, wherein the depth of the groove is 5-25mm in a direction perpendicular to the side plates.
7. The battery module housing of claim 1, wherein the battery module housing is integrally formed.
8. The battery module housing of claim 1, wherein the side plate is provided with at least one recess having a projected area in the plane of its corresponding side plate that is greater than half the surface area of its corresponding side plate.
9. The battery module housing according to claim 1, further comprising a cover plate disposed above the side plates, the cover plate being connected to the side plates by welding or bolting.
10. A battery module, characterized in that the battery module comprises the battery module housing according to any one of claims 1 to 9, the battery module further comprising a cell stack disposed in a space surrounded by the battery module housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223466138.XU CN219457851U (en) | 2022-12-23 | 2022-12-23 | Battery module shell and battery module comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223466138.XU CN219457851U (en) | 2022-12-23 | 2022-12-23 | Battery module shell and battery module comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219457851U true CN219457851U (en) | 2023-08-01 |
Family
ID=87385314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223466138.XU Active CN219457851U (en) | 2022-12-23 | 2022-12-23 | Battery module shell and battery module comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219457851U (en) |
-
2022
- 2022-12-23 CN CN202223466138.XU patent/CN219457851U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101150247B1 (en) | Battery module having flexibility in designing structure of module and battery pack employed with the same | |
| KR100921346B1 (en) | Mid-Large Battery Module and Battery Module Assembly | |
| JP4772614B2 (en) | Battery module | |
| JP4961136B2 (en) | Secondary battery module and unit battery fixing end plate applied thereto | |
| KR101256058B1 (en) | Secondary battery module | |
| JP2000048867A (en) | Battery pack | |
| JP2018506828A (en) | Battery compression blocker and battery module including the same | |
| WO2020203573A1 (en) | Battery pack | |
| KR100709262B1 (en) | Secondary battery module | |
| CN219457851U (en) | Battery module shell and battery module comprising same | |
| CN115149194B (en) | Power storage device | |
| EP4037080A1 (en) | Battery module and method of manufacturing same | |
| JP7367188B2 (en) | Battery pack with improved bonding structure and automobile including the same | |
| KR20210133566A (en) | Battery module and battery pack including the same | |
| CN219067102U (en) | CTP battery module unitized construction | |
| CN220106755U (en) | Battery box, battery pack and vehicle | |
| KR20070014630A (en) | Secondary battery module | |
| JP7424338B2 (en) | Power storage device | |
| EP4329054A2 (en) | Rechargeable battery module | |
| CN218005142U (en) | Power battery assembly and electric vehicle | |
| CN116759722B (en) | Battery frame structure, battery pack and energy storage cabinet | |
| KR101325037B1 (en) | Battery Module of Improved Productability | |
| CN217903247U (en) | Square-shell battery cell, battery cell stacking body and battery pack | |
| CN219203354U (en) | Battery and electricity utilization device | |
| CN219163559U (en) | Battery cell module and battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |