CN216850145U - End plate for battery module and battery module thereof - Google Patents
End plate for battery module and battery module thereof Download PDFInfo
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- CN216850145U CN216850145U CN202123076031.XU CN202123076031U CN216850145U CN 216850145 U CN216850145 U CN 216850145U CN 202123076031 U CN202123076031 U CN 202123076031U CN 216850145 U CN216850145 U CN 216850145U
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- battery module
- end plate
- mounting hole
- platform
- main part
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- 238000003466 welding Methods 0.000 claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model provides an end plate for battery module and battery module thereof, wherein, an mounting hole that is used for the end plate of battery module to include the main part board, by the bellying of the outside outstanding formation in one side of main part board and runs through main part board and bellying simultaneously on the direction of height of battery module, the one side of main part board is equipped with the curb plate welded welding platform who supplies the battery module, and welding platform is located the both sides border on the width direction of end plate edge battery module. Compared with the prior art, the utility model discloses an end plate sets up the bellying in the one side of main part board to set up the mounting hole in the bellying, the event need not to increase main part board thickness size, thereby can maintain the lightweight of end plate and battery module, with volume and the weight energy density that improves battery module. The mounting hole penetrates through the main body plate and the boss part at the same time, and the mounting hole is not only arranged on the boss part, so that the strength of the end plate can be maintained. The one side of main part board is equipped with and supplies curb plate welded platform, and it can improve and connect firm nature and compactedness.
Description
Technical Field
The utility model relates to an energy storage apparatus field especially relates to the battery module, relates to an end plate for battery module more.
Background
The battery module assembled by the power battery is widely applied to the related technical fields of energy automobiles, energy storage and the like. With the development of technology, higher requirements are put on the battery module group rate, light weight, fixing strength, cost and the like, and how to achieve light weight is a topic of great interest in the industry. Generally, the frame structure of the battery module generally includes two opposite side plates and two opposite end plates, and the side plates and the end plates jointly enclose a receiving space for receiving a plurality of batteries.
At present most battery module all adopts the end plate of unified thickness, because the mounting hole size on the end plate is relatively fixed, in order to satisfy the size of mounting hole, need be great with the whole size design of end plate to lead to end plate weight higher. In addition, the conventional end plate can not be provided with a positioning device, and the hole position is easy to deviate when the battery module is installed in the box body, so that the installation is inconvenient.
Therefore, a new end plate structure is urgently needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a new end plate structure for battery module, it can be when maintaining jumbo size mounting hole, can also control the weight of end plate to in order to alleviate the weight of battery module, so that the battery module lightweight improves the volume and the weight energy density of battery module.
In order to achieve the above object, the utility model provides an aspect provides an end plate for battery module, including the main part board, by the one side of main part board outwards stands out the bellying that forms and in run through simultaneously in the direction of height of battery module the main part board with the mounting hole of bellying, the one side of main part board is equipped with the confession the curb plate welded welding platform of battery module, welding platform is located the end plate is followed the ascending both sides border of width direction of battery module.
Compared with the prior art, the utility model discloses an end plate sets up the bellying in the one side of main part board to set up the mounting hole in the bellying, the event need not to increase main part board thickness size, thereby can maintain the lightweight of end plate and battery module, with volume and the weight energy density that improves battery module. The mounting hole penetrates through the main body plate and the boss part at the same time, and the mounting hole is not only arranged in the boss part, so that the strength of the end plate can be maintained. The one side of main part board is equipped with and supplies curb plate welded platform, and it can improve battery module's firm nature of connection and compactness.
As a preferred technical scheme, the boss includes a first boss and a second boss, the mounting hole includes a first mounting hole and a second mounting hole which respectively penetrate through the first boss and the second boss, and the structure assembly can be facilitated by the arrangement of the double mounting holes.
As a better technical scheme, the main body plate is provided with a plurality of lightening holes in the height direction of the battery module, and the lightening holes can keep the battery module light.
As a better technical solution, the maximum thickness of the main body plate at the mounting hole and in the length direction of the battery module is D, the thickness of the main body plate at the lightening hole and in the length direction of the battery module is T, T < D is less than or equal to 2T, and more preferably, D is 1.3-1.8T. Within this data range, not only the strength of the end plates but also the light weight can be maintained.
As a preferred technical solution, the main body plate includes a first side and a second side opposite to each other in a width direction of the battery module, and the welding platform includes a first platform portion interposed between the first side and the first protruding portion, and a second platform portion interposed between the second side and the second protruding portion.
In a preferred embodiment, the first protruding portion extends in the first lateral direction to form a first step to form the first platform, and the second protruding portion extends in the second lateral direction to form a second step to form the second platform.
As a better technical scheme, the wall thickness between the first step and the first mounting hole is greater than or equal to 2mm, the wall thickness between the second step and the second mounting hole is greater than or equal to 2mm, the minimum wall thickness of the first platform part and the second platform part in the length direction of the battery module is greater than or equal to 2mm, and the wall thickness is set to maintain sufficient welding strength of the end plate.
As a better technical scheme, the main body plate is provided with a first positioning hole between the first side edge and the first mounting hole, and/or the main body plate is provided with a second positioning hole between the second side edge and the second mounting hole, and the positioning holes are additionally arranged, so that the module is easy to mount and fix, and the production efficiency is high. The number of the positioning holes can be one or two, and when the number of the positioning holes is two, the two positioning holes can be distributed along the center symmetrically or asymmetrically. Since the end plates are often used in pairs and are identical in structure, the locating holes are suggested to be arranged on a single side.
The utility model discloses another aspect provides a battery module, include the battery of a plurality of system of folding and enclose and establish a plurality of the frame structure that encloses of battery, enclose the end plate that the frame structure includes the curb plate of two relative settings and two relative settings, the end plate is aforementioned an end plate for battery module, curb plate welded fastening in welded platform.
The utility model discloses a battery module passes through the structural design of end plate, can alleviate the weight of battery module to make the battery module lightweight, improve the volume and the weight energy density of battery module, and the firm nature of connection and the compactedness of battery module are all higher.
Drawings
Fig. 1 is a perspective view of an embodiment of a battery module according to the present invention.
Fig. 2 is a perspective view of an embodiment of an end plate of the present invention.
Fig. 3 is a perspective view of the end plate of fig. 2 in another orientation.
Fig. 4 is a perspective view of the end plate of fig. 2 in yet another orientation.
Fig. 5 is a perspective view of the end plate of fig. 2 in yet another orientation.
Fig. 6 is a top view of the endplate of fig. 2 in a first orientation.
Fig. 7 is a top view of the endplate of fig. 2 in a second orientation.
DESCRIPTION OF SYMBOLS IN THE DRAWINGS
100-a battery module; 10-a battery; 30-an end plate; 31-a body plate; 32-a boss; 32 a-a first boss; 32 b-a second boss; 33-mounting holes; 33 a-first mounting hole; 33 b-a second mounting hole; 34-lightening holes; 35 a-first locating hole; 35 b-a second locating hole; 36 a-first step; 36 b-a second step; 37 a-a first platform section; 37 b-a second platform portion; 50-side plates; 51-side plate bending part; r-round angle; f1-first side; f2-second side; l-length direction; w-width direction; h-height direction
Detailed Description
To better illustrate the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following embodiments. It should be noted that the following method is further illustrative of the present invention and should not be construed as limiting the present invention.
As shown in fig. 1, the battery module 100 includes a plurality of stacked batteries 10 and a surrounding frame structure surrounding the plurality of batteries 10, the surrounding frame structure includes two opposite side plates 50 and two opposite end plates 30, and the side plates 50 are welded to the end plates 30. The end plate 30 and the side plate 50 may be made of a metal material such as steel or aluminum, preferably an aluminum alloy material such as AL 5083.
As shown in fig. 2 to 7, the end plate 30 of the battery module 100 includes a main body plate 31, a protrusion 32 formed by protruding one surface of the main body plate 31, and a mounting hole 33 penetrating the main body plate 31 and the protrusion 32 in the height direction H of the battery module 100, wherein a welding platform for welding the side plate 50 of the battery module 100 is disposed on one surface of the main body plate 31, and the welding platform is disposed on two side edges of the end plate 30 in the width direction W of the battery module 100. The two sides of the side plate 50 are bent toward the end plate 30 to form side plate bending portions 51, and the side plate bending portions 51 can be welded to the welding platform of the end plate 30 in a matching manner, such as laser side seam welding, carbon dioxide arc welding or CMT welding.
Further, the boss 32 includes a first boss 32a and a second boss 32b, and the mounting hole 33 includes a first mounting hole 33a and a second mounting hole 33b penetrating the first boss 32a and the second boss 32b, respectively, and the provision of the double mounting holes may facilitate structural assembly. The end plate 30 is fixed to the case of the battery module 100 through the first and second mounting holes 33a and 33b, and may be fixed by bolts or rivets, preferably bolts.
The main body plate 31 is provided with a plurality of lightening holes 34 in the height direction H of the battery module 100, and specifically, the main body plate 31 is provided with a plurality of lightening holes 34 between the first mounting hole 33a and the second mounting hole 33b, and the lightening holes 34 are provided to keep the battery module 100 light. The maximum thickness of the main body plate 31 at the first mounting hole 33a or the second mounting hole 33b in the length direction L of the battery module 100 is D, the thickness of the main body plate 31 at the lightening hole 34 in the length direction L of the battery module 100 is T, T < D is less than or equal to 2T, and more preferably, D is 1.3-1.8T. Within this data range, not only the strength of the end plate 30 but also a light weight can be maintained. The main body plate 31 includes a first side F1 and a second side F2 opposite to each other in the width direction W of the battery module 100, and the welding platform includes a first platform portion 37a interposed between the first side F1 and the first protrusion portion 32a, and a second platform portion 37b interposed between the second side F2 and the second protrusion portion 32 b. The main body plate 31 is provided with a first positioning hole 35a between the first side F1 and the first mounting hole 33a, and/or the main body plate 31 is provided with a second positioning hole 35b between the second side F2 and the second mounting hole 33b, and the positioning holes are additionally arranged, so that the battery module 100 is easy to mount and fix, and the production efficiency is high. The number of the positioning holes may be one or two, and when two positioning holes are provided, the two positioning holes (the first positioning hole 35a and the second positioning hole 35b) may be distributed symmetrically along the center (as shown in fig. 6) or asymmetrically. Since the end plates 30 are often used in pairs and are identical in construction, the locating holes are suggested to be arranged on a single side (as shown in fig. 7).
The first projecting portion 32a extends in the direction of the first side F1 to form a first step 36a, thereby constituting a first platform 37a, and the second projecting portion 32b extends in the direction of the second side F2 to form a second step 36b, thereby constituting a second platform 37 b. The junction of the first platform portion 37a and the first side F1 is set to be a rounded corner R, and the junction of the second platform portion 37b and the second side F2 is set to be a rounded corner R, so as to reduce stress and facilitate welding of the side plate bending portion 51 and the welding platform. The wall thickness between the first step 36a and the first mounting hole 33a is greater than or equal to 2mm, the wall thickness between the second step 36b and the second mounting hole 33b is greater than or equal to 2mm, and the minimum wall thickness of the first platform part 37a and the second platform part 37b in the length direction L of the battery module 100 is greater than or equal to 2mm, so that sufficient end plate welding strength is maintained by the arrangement of the wall thickness.
The utility model discloses an end plate 30 sets up bellying 32 in the one side of main part board 31 to set up mounting hole 33 in bellying 32, the event need not to increase main part board 31's thickness size, thereby can maintain end plate 30 and battery module 100's lightweight, with volume and weight energy density that improves battery module 100. The mounting hole 33 penetrates both the main body plate 31 and the boss 32, and is not present only in the boss 32, so that the strength of the end plate 30 can be maintained. One surface of the main body plate 31 is provided with a welding platform for welding the side plate 50, which can improve the connection reliability and compactness of the battery module 100.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited to the embodiments, but those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides an end plate for battery module, its characterized in that, including the main part board, by the bellying of the outside outstanding formation in one side of main part board with run through simultaneously in the direction of height of battery module the main part board with the mounting hole of bellying, the one side of main part board is equipped with the confession the welded platform of curb plate of battery module, welded platform is located the end plate is followed the ascending both sides border of width direction of battery module.
2. The end plate for a battery module according to claim 1, wherein the boss includes a first boss and a second boss, and the mounting hole includes a first mounting hole and a second mounting hole that penetrate the first boss and the second boss, respectively.
3. The end plate for a battery module according to claim 2, wherein the main body plate is provided with a plurality of lightening holes in the height direction of the battery module.
4. The end plate for a battery module according to claim 3, wherein the main body plate has a maximum thickness D at the mounting hole in the length direction of the battery module, a thickness T at the lightening hole in the length direction of the battery module, and T < D is less than or equal to 2T.
5. The end plate for a battery module according to claim 4, wherein D is 1.3 to 1.8T.
6. The end plate for a battery module according to claim 2, wherein the main body plate includes first and second opposite side edges in a width direction of the battery module, and the welding platform includes a first platform portion interposed between the first side edge and the first protruding portion, and a second platform portion interposed between the second side edge and the second protruding portion.
7. The end plate for a battery module according to claim 6, wherein the first protruding portion extends in the direction of the first side and forms a first step to constitute the first platform portion, and the second protruding portion extends in the direction of the second side and forms a second step to constitute the second platform portion.
8. The end plate for a battery module according to claim 7, wherein the wall thickness between the first step and the first mounting hole is greater than or equal to 2mm, the wall thickness between the second step and the second mounting hole is greater than or equal to 2mm, and the minimum wall thickness of the first platform part and the second platform part in the length direction of the battery module is greater than or equal to 2 mm.
9. The end plate for a battery module according to claim 6, wherein the main body plate is provided with a first positioning hole between the first side and the first mounting hole, and/or a second positioning hole between the second side and the second mounting hole.
10. A battery module, characterized in that, include a plurality of battery of system of folding and enclose the frame structure that encloses a plurality of the battery, enclose the frame structure and include two relative curb plates that set up and two relative end plates that set up, the end plate is the end plate that is used for battery module of any claim 1 ~ 9, curb plate welded fastening is in welded platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123076031.XU CN216850145U (en) | 2021-12-08 | 2021-12-08 | End plate for battery module and battery module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123076031.XU CN216850145U (en) | 2021-12-08 | 2021-12-08 | End plate for battery module and battery module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216850145U true CN216850145U (en) | 2022-06-28 |
Family
ID=82106179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123076031.XU Active CN216850145U (en) | 2021-12-08 | 2021-12-08 | End plate for battery module and battery module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216850145U (en) |
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2021
- 2021-12-08 CN CN202123076031.XU patent/CN216850145U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |
|
| CP03 | Change of name, title or address |