CN216793854U - Boundary beam, battery package and vehicle - Google Patents
Boundary beam, battery package and vehicle Download PDFInfo
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- CN216793854U CN216793854U CN202122689223.1U CN202122689223U CN216793854U CN 216793854 U CN216793854 U CN 216793854U CN 202122689223 U CN202122689223 U CN 202122689223U CN 216793854 U CN216793854 U CN 216793854U
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- 230000002787 reinforcement Effects 0.000 claims 2
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- 238000000034 method Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 7
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- 239000008358 core component Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 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
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- 230000008093 supporting effect Effects 0.000 description 1
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Abstract
The disclosure relates to the technical field of vehicles, in particular to a side beam, a battery pack and a vehicle. The utility model provides an edge beam includes: the boundary beam body is used for surrounding the outside of the battery unit; the side beam body comprises an energy absorption structure and a bearing assembly, and the energy absorption structure is located on the outer side of the bearing assembly. When the outer side of the boundary beam body is stressed to extrude the outer side of the energy absorption structure, the side plates of the energy absorption structure deform to have an energy absorption effect, the impact force continues to be reduced, the impact force reaches the bearing assembly after being reduced, and the bearing assembly receives the impact force transmitted by the energy absorption structure to ensure the strength of the boundary beam and avoid extruding the battery units in the battery pack box body.
Description
Technical Field
The disclosure relates to the technical field of vehicles, in particular to a side beam, a battery pack and a vehicle.
Background
With the great popularization and promotion of new energy automobiles, the safety and reliability of the new energy automobiles increasingly attract attention of people. The battery pack is used as one of core components of the new energy automobile, and the safety performance of the battery pack directly influences the safety performance of the new energy automobile. The battery pack box is one of the core components of the battery pack, and the reliability of the mechanical strength of the battery pack box directly affects the safety and reliability of the battery pack.
When the whole vehicle is collided, if the sill beam/longitudinal beam of the vehicle body deforms, the battery pack box body is directly extruded, the battery pack box body is limited in supporting effect, and when the battery pack box body is extruded by external force, the battery pack box body deforms, so that the safety of a battery unit supported on the inner side of the battery pack box body can be threatened, and when the battery unit is damaged, explosion or combustion can be possibly caused due to the fact that high-density energy is contained in a single battery, and great threat can be caused to driving safety.
Disclosure of Invention
To solve the technical problem or at least partially solve the technical problem, the present disclosure provides an edge beam, a battery pack, and a vehicle.
The present disclosure provides in a first aspect an edge beam, comprising: the boundary beam body is used for surrounding the outside of the battery unit;
the side beam body comprises an energy absorption structure and a bearing assembly, and the energy absorption structure is located on the outer side of the bearing assembly.
Furthermore, the energy absorbing structure comprises a first energy absorbing assembly and a second energy absorbing assembly, the first energy absorbing assembly is located on the outer side of the second energy absorbing assembly, and the second energy absorbing assembly is located on the outer side of the bearing assembly.
Further, a first cavity is formed in the first energy absorbing assembly and extends along the length direction of the boundary beam body;
and/or the second energy-absorbing assembly is formed with a second cavity that extends along the length of the side sill body.
Furthermore, a plurality of first inclined plates are arranged in the first cavity and extend along the length direction of the boundary beam body;
the first inclined plates are arranged at intervals along the height direction of the edge beam body, so that the first cavity is divided into a plurality of first sub-cavities by the first inclined plates;
and/or a plurality of second inclined plates are arranged in the second cavity and extend along the length direction of the side beam body;
and along the height direction of the edge beam body, the second inclined plates are arranged at intervals, so that the second inclined plates divide the second cavity into a plurality of second sub-cavities.
Further, along the direction of height of boundary beam body, adjacent two the incline direction of first swash plate is opposite, so that first sub cavity forms trapezoidal cavity or triangle-shaped cavity.
Furthermore, along the direction of height of boundary beam body, adjacent two the inclination direction of second swash plate is opposite, so that second sub cavity forms trapezoidal cavity or triangle-shaped cavity.
Furthermore, an upper inclined plate is arranged at the top of the first energy absorption assembly, and the upper inclined plate is connected with a side plate of the second energy absorption assembly in an upward inclined transition manner;
the bottom of the first energy absorption assembly is provided with a lower inclined plate, and the lower inclined plate is connected with the side plate of the second energy absorption assembly in a downward inclined transition mode.
Further, the bearing assembly is provided with a third cavity, and the third cavity extends along the length direction of the side beam body.
Furthermore, a plurality of reinforcing plates are arranged in the third cavity and extend along the length direction of the edge beam body;
along the height direction of the side beam body, the reinforcing plates are arranged at intervals, so that the reinforcing plates divide the third cavity into a plurality of third sub-cavities.
Further, a plurality of the reinforcing plates are arranged in parallel, so that the third sub-cavity forms a rectangular cavity or a square cavity.
Furthermore, the energy absorber further comprises a mounting plate, wherein the mounting plate is connected with the side plate of the second energy absorption assembly, and the mounting plate is arranged at the bottom of the first energy absorption assembly.
Further, the mounting plate is formed with a plurality of cavities;
the mounting plate has a thickness that decreases in a direction away from the second energy absorber assembly.
The second aspect of the present disclosure provides a battery pack, which includes the edge beam.
A third aspect of the present disclosure provides a vehicle including the battery pack.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the utility model provides an edge beam includes the edge beam body, and the edge beam body is used for enclosing the outside of establishing at the battery unit, and the edge beam body includes energy-absorbing structure and load-carrying components, and the energy-absorbing structure is located load-carrying components's the outside. When the outer side of the boundary beam body is stressed to extrude the outer side of the energy absorption structure, the side plates of the energy absorption structure deform to have an energy absorption effect, the impact force continues to be reduced, the impact force reaches the bearing assembly after being reduced, and the bearing assembly receives the impact force transmitted by the energy absorption structure to ensure the strength of the boundary beam and avoid extruding the battery units in the battery pack box body.
This openly can avoid the direct battery cell who transmits to battery package box inside of impact through the energy-absorbing structure and the carrier assembly that set gradually, has reduced because of the risk that extrusion or collision caused the thermal runaway to take place, has improved the security performance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present disclosure;
fig. 2 is a cross-sectional view of a battery pack according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a battery pack center sill according to an embodiment of the disclosure.
Reference numerals are as follows: 1. a side beam body; 11. a first energy absorbing assembly; 111. a first sloping plate; 112. a first sub-cavity; 113. an upper sloping plate; 114. a lower sloping plate; 12. a second energy absorber assembly; 121. a second swash plate; 122. a second sub-cavity; 13. a load bearing assembly; 131. a reinforcing plate; 132. a third sub-cavity; 2. mounting a plate; 21. a cavity; 3. a base plate; 4. a battery cell; 5. a receiving cavity.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
The battery pack generally includes a case and a battery unit 4 provided in the case. The box body can be made of aluminum, aluminum alloy or other metal materials, and an accommodating cavity is formed in the box body. In a specific embodiment, the box body is of a box body structure with an open top, and comprises an upper box cover, the size of the upper box cover is equivalent to that of an opening at the top of the box body, and the upper box cover can be fixed to the opening through fixing pieces such as bolts, so that the accommodating cavity is formed. Meanwhile, in order to improve the sealing performance of the box body, a sealing element can be arranged between the upper box cover and the box body.
The battery unit 4 may be a secondary battery capable of being repeatedly charged and discharged, and the plurality of battery units 4 are located in the accommodating chamber and stacked in the accommodating chamber, and the stacking direction may be a length direction, a width direction, or a height direction.
The box body comprises a bottom plate 3 and an edge beam.
As shown in fig. 1, 2 and 3, an edge beam provided by the embodiment of the present disclosure includes an edge beam body 1, where the edge beam body 1 is configured to surround a battery unit 4; the side sill body 1 comprises an energy absorbing structure and a load bearing assembly 13, wherein the energy absorbing structure is positioned on the outer side of the load bearing assembly 13. When the outer side of the boundary beam body 1 is stressed to extrude the outer side of the energy absorption structure, the side plates of the energy absorption structure deform to have an energy absorption effect, the impact force continues to be reduced, the impact force reaches the bearing assembly 13 after being reduced, and the bearing assembly 13 bears the impact force transmitted by the energy absorption structure to ensure the strength of the boundary beam and avoid extruding the battery units in the battery pack box body.
This is disclosed can avoid the direct battery cell who transmits to battery package box inside of impact through the energy-absorbing structure and the carrier assembly 13 that set gradually, has reduced because of the risk that extrusion or collision caused the thermal runaway to take place, has improved the security performance.
In some embodiments, the energy absorbing structure includes a first energy absorbing assembly 11 and a second energy absorbing assembly 12, the first energy absorbing assembly 11 being positioned outboard of the second energy absorbing assembly 12, and the second energy absorbing assembly 12 being positioned outboard of the load bearing assembly 13. When the outside of the boundary beam body 1 is stressed to extrude the outside of the first energy absorption assembly 11, the side plate of the first energy absorption assembly 11 deforms, meanwhile, the first cavity deforms, the energy absorption effect is achieved, the impact force reaching the second energy absorption assembly 12 is reduced, when the impact force is transmitted to the second energy absorption assembly 12, after the side plate of the second energy absorption assembly 12 crushes and deforms, the second cavity crushes and deforms, the impact force continues to be reduced, the impact force reaches the bearing assembly 13 after being reduced, the bearing assembly 13 bears the impact force transmitted by the second energy absorption assembly 12, the boundary beam strength is ensured, and the battery unit 4 inside the battery pack box body is prevented from being extruded.
The first energy absorber assembly 11, the second energy absorber assembly 12, and the load bearing assembly 13 can each be of unitary construction. Optionally, the boundary beam body 1 comprises an integrated first energy absorbing assembly 11, an integrated second energy absorbing assembly 12 and a load bearing assembly 13, and the boundary beam body 1 is of an integrated structure, so that the process flow can be simplified, and the production efficiency is improved. The first energy absorbing assembly 11 is formed with a first cavity, the second energy absorbing assembly 12 is formed with a second cavity, and the first cavity and the second cavity both extend along the length direction X of the side sill body 1. When the outside of the boundary beam body 1 is stressed to extrude the outside of the first energy absorption assembly 11, the side plate of the first energy absorption assembly 11 deforms, meanwhile, the first cavity deforms, the energy absorption effect is achieved, the impact force reaching the second energy absorption assembly 12 is reduced, when the impact force is transmitted to the second energy absorption assembly 12, after the side plate of the second energy absorption assembly 12 crushes and deforms, the second cavity crushes and deforms, the impact force continues to be reduced, the impact force reaches the bearing assembly 13 after being reduced, the bearing assembly 13 bears the impact force transmitted by the second energy absorption assembly 12, the boundary beam strength is ensured, and the battery unit 4 inside the battery pack box body is prevented from being extruded.
This is disclosed can avoid the direct battery unit 4 that transmits to the battery package box inside of impact through the first energy-absorbing subassembly 11, second energy-absorbing subassembly 12 and the carrier assembly 13 that set gradually, has reduced because of the risk that extrusion or collision caused the thermal runaway to take place, has improved the security performance. Through the support of first cavity and second cavity body curb plate, can reduce the weight of boundary beam body 1 as far as possible when satisfying boundary beam body 1 intensity, can promote the mechanical properties of boundary beam under the condition that does not increase the material and use promptly. The boundary beam body 1 is integrated into one piece's first energy-absorbing component 11, second energy-absorbing component 12 and carrier assembly 13, can show improvement boundary beam body 1's bulk rigidity, strengthens boundary beam body 1's anti extrusion ability, anticollision ability, effectively prevents 1 of boundary beam body and causes destruction to the battery cell 4 of battery package box inside under collision and the extrusion operating mode, and then can improve the security of vehicle.
It should be noted that, in this embodiment, the outer side refers to a side located outside the accommodating cavity 5 of the battery pack case when the edge beam forms the battery pack case, that is, a side away from the accommodating cavity 5. The inner side refers to a side close to the box receiving chamber 5.
The first cavity can be provided with one, two and three … … and the second cavity can be provided with one, two and three … … along the direction from the outer side to the inner side
In some specific embodiments, a plurality of first inclined plates 111 are disposed in the first cavity, and the first inclined plates 111 extend along the length direction X of the side beam body 1. The first swash plate 111 decomposes the force transmitted from the outside of the first energy absorber 11 to deform the same, and absorbs the force to reduce the destructive force transmitted to the second energy absorber 12. Along the direction of height Z of boundary beam body 1, a plurality of first swash plate 111 interval sets up to make first swash plate 111 divide into a plurality of first subchambers 112 with first cavity. The plurality of first sub-cavities 112 form the multi-layer cavity 21 along the height direction Z of the beam, and the weight of the beam can be reduced as much as possible while satisfying the strength of the edge beam by the support of the multi-layer cavity 21 and the walls of the cavity 21 of each cavity 21.
In some specific embodiments, along the height direction Z of the side beam body 1, the inclination directions of two adjacent first inclined plates 111 are opposite, so that the first sub-cavities 112 form trapezoidal cavities or triangular cavities, that is, the junction surfaces of the first sub-cavities 112 are trapezoidal or triangular, the stability of the first energy absorbing assembly 11 is better, the energy absorption of the first energy absorbing assembly 11 is increased, the energy absorbing effect of the first energy absorbing assembly 11 during collision is improved, and the safety performance is improved.
In some specific embodiments, a plurality of second sloping plates 121 are disposed in the second cavity, and the second sloping plates 121 extend along the length direction X of the side sill body 1. The second sloping plate 121 can decompose the force transmitted from the outside of the second energy-absorbing assembly 12 to generate deformation, so as to absorb the force and reduce the destructive force transmitted to the bearing assembly 13. Along the direction of height Z of the side beam body 1, the plurality of second sloping plates 121 are arranged at intervals, so that the second sloping plates 121 divide the second cavity into a plurality of second sub-cavities 122. The plurality of second sub-cavities 122 form the multi-layer cavity 21 along the height direction Z of the beam, and the weight of the side beam body 1 can be reduced as much as possible while the strength is satisfied by the multi-layer cavity 21 and the support of the cavity 21 wall of each cavity 21.
In some specific embodiments, along the height direction Z of the side sill body 1, the inclination directions of two adjacent second inclined plates 121 are opposite, so that the second sub-cavities 122 form a trapezoidal cavity or a triangular cavity. That is, the joint surface of the second sub-cavity 122 is trapezoidal or triangular, so that the stability of the second energy-absorbing assembly 12 is better, the energy absorption of the second energy-absorbing assembly 12 is increased, the energy-absorbing effect of the second energy-absorbing assembly 12 during collision is improved, and the safety performance is improved.
In some specific embodiments, the first sub-cavities 112 correspond to the second sub-cavities 122 one by one, so that a side plate is shared between the first sub-cavities 112 and the second sub-cavities 122, which is beneficial to decomposing the force transmitted from the outside of the first energy absorbing assembly 11, generating deformation, absorbing the force, and reducing the destructive force transmitted to the bearing assembly 13. Because one side plate is shared between the first sub-cavity 112 and the second sub-cavity 122, the side beam body 1 can meet the strength of the side beam and reduce the weight as much as possible.
In some specific embodiments, the top of the first energy absorbing assembly 11 is provided with an upper inclined plate 113, the upper inclined plate 113 is connected to the side plate of the second energy absorbing assembly 12 in an upward inclined transition manner, that is, an included angle between the upper inclined plate 113 and the side plate of the second energy absorbing assembly 12 is an obtuse angle, so that the structural strength and the bearing capacity of the first energy absorbing assembly 11 can be further improved, and the side beam is safer and more reliable after being installed.
The bottom of the first energy absorption assembly 11 is provided with a lower inclined plate 114, the lower inclined plate 114 is in downward inclined transitional connection with the side plate of the second energy absorption assembly 12, namely, the included angle between the lower inclined plate 114 and the side plate of the second energy absorption assembly 12 is an obtuse angle, so that the structural strength and the bearing capacity of the first energy absorption assembly 11 can be further improved, and the boundary beam is safer and more reliable after being installed.
In some specific embodiments, the carrier assembly 13 is formed with a third cavity, the third cavity extends along the length direction X of the side beam body 1, a plurality of reinforcing plates 131 are disposed in the third cavity, so that the carrier assembly 13 has a certain structural strength, and mainly bears the force transmitted by the second energy-absorbing assembly 12, so as to ensure the strength of the side beam, the reinforcing plates 131 extend along the length direction X of the side beam body 1, along the height direction Z of the side beam body 1, the plurality of reinforcing plates 131 are disposed at intervals, so that the reinforcing plates 131 divide the third cavity into a plurality of third sub-cavities 132, which can significantly improve the overall rigidity of the side beam body 1, enhance the anti-extrusion capability and anti-collision capability of the side beam body 1, and effectively prevent the battery units 4 inside the battery pack box from being damaged under the conditions of collision and extrusion, thereby improving the safety of the vehicle.
In some specific embodiments, the plurality of reinforcing plates 131 are arranged in parallel, so that the third sub-cavities 132 form rectangular cavities or square cavities, the force transmitted by the second energy-absorbing assembly 12 can be uniformly transmitted to the inner side plate of the load-bearing assembly 13 after being dispersed, and the possibility that the inner side plate of the load-bearing assembly 13 is deformed due to stress or uneven stress, so that the battery unit 4 is extruded into the battery pack case is reduced.
In some embodiments, the side sill further includes a mounting plate 2, and the mounting plate 2 may include mounting holes for attachment to a body rail or rocker beam. Mounting panel 2 is connected with the curb plate of second energy-absorbing subassembly 12, and mounting panel 2 sets up in the bottom of first energy-absorbing subassembly 11, and mounting panel 2 is formed with a plurality of cavities 21, can satisfy the lightweight requirement, along the direction of keeping away from second energy-absorbing subassembly 12, and mounting panel 2's thickness reduces gradually, satisfying the intensity demand and can further lighten weight under the condition. The mounting plate 2 can be integrally formed with the edge beam body 1, so that the process flow can be simplified, and the production efficiency is improved.
The battery pack provided by the embodiment of the disclosure comprises the edge beam provided by the disclosure. Since the battery pack provided by the embodiment of the present disclosure and the vehicle provided by the embodiment of the present disclosure have the same advantages as the edge beam provided by the present disclosure, detailed description thereof is omitted. It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. An edge rail, comprising: the boundary beam body is used for surrounding the outside of the battery unit;
the side beam body comprises an energy absorption structure and a bearing assembly, and the energy absorption structure is located on the outer side of the bearing assembly.
2. The sill of claim 1, wherein said energy absorbing structure includes a first energy absorber assembly and a second energy absorber assembly, said first energy absorber assembly being outboard of said second energy absorber assembly, said second energy absorber assembly being outboard of said load bearing assembly.
3. The sill of claim 2, wherein the first energy absorbing assembly defines a first cavity extending along the length of the sill body;
and/or a second cavity is formed in the second energy absorbing assembly and extends along the length direction of the side beam body.
4. The sill of claim 3, wherein a plurality of first sloping plates are disposed within the first cavity, the first sloping plates extending along the length of the sill body;
the first inclined plates are arranged at intervals along the height direction of the edge beam body, so that the first cavity is divided into a plurality of first sub-cavities by the first inclined plates;
and/or a plurality of second inclined plates are arranged in the second cavity and extend along the length direction of the side beam body;
and along the height direction of the edge beam body, the second inclined plates are arranged at intervals, so that the second inclined plates divide the second cavity into a plurality of second sub-cavities.
5. The edge beam of claim 4, wherein the inclination directions of two adjacent first sloping plates are opposite along the height direction of the edge beam body, so that the first sub-cavities form a trapezoidal cavity or a triangular cavity.
6. The edge beam of claim 4, wherein the inclination directions of two adjacent second sloping plates are opposite along the height direction of the edge beam body, so that the second sub-cavities form a trapezoidal cavity or a triangular cavity.
7. The sill of claim 2, wherein the top of the first energy absorber assembly has an upwardly sloping plate that transitions obliquely upwardly to a side plate of the second energy absorber assembly;
the bottom of the first energy absorption assembly is provided with a lower inclined plate, and the lower inclined plate is connected with the side plate of the second energy absorption assembly in a downward inclined transition mode.
8. The sill of any of claims 2 to 7, wherein the load bearing assembly defines a third cavity extending along the length of the sill body.
9. The sill of claim 8, wherein a plurality of reinforcement plates are disposed within said third cavity, said reinforcement plates extending along the length of said sill body;
along the height direction of the side beam body, the reinforcing plates are arranged at intervals, so that the reinforcing plates divide the third cavity into a plurality of third sub-cavities.
10. The edge beam defined in claim 9, wherein a plurality of the reinforcing plates are arranged in parallel such that the third sub-cavity forms a rectangular or square cavity.
11. The sill of claim 8, further comprising a mounting plate connected to a side plate of the second energy absorber assembly, the mounting plate being disposed at a bottom of the first energy absorber assembly.
12. The sill of claim 11, wherein said mounting plate is formed with a plurality of cavities;
the mounting plate has a thickness that decreases in a direction away from the second energy absorber assembly.
13. A battery pack comprising the edge beam of any one of claims 1 to 12.
14. A vehicle characterized by comprising the battery pack of claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122689223.1U CN216793854U (en) | 2021-11-04 | 2021-11-04 | Boundary beam, battery package and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122689223.1U CN216793854U (en) | 2021-11-04 | 2021-11-04 | Boundary beam, battery package and vehicle |
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| CN216793854U true CN216793854U (en) | 2022-06-21 |
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| CN202122689223.1U Active CN216793854U (en) | 2021-11-04 | 2021-11-04 | Boundary beam, battery package and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060258A1 (en) * | 2022-09-23 | 2024-03-28 | 宁德时代新能源科技股份有限公司 | Box body, battery and vehicle |
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2021
- 2021-11-04 CN CN202122689223.1U patent/CN216793854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060258A1 (en) * | 2022-09-23 | 2024-03-28 | 宁德时代新能源科技股份有限公司 | Box body, battery and vehicle |
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