CN221009087U - High-efficient energy-absorbing battery package structure - Google Patents
High-efficient energy-absorbing battery package structure Download PDFInfo
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- CN221009087U CN221009087U CN202323005818.6U CN202323005818U CN221009087U CN 221009087 U CN221009087 U CN 221009087U CN 202323005818 U CN202323005818 U CN 202323005818U CN 221009087 U CN221009087 U CN 221009087U
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- upper cover
- honeycomb core
- plate
- layer plate
- battery pack
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- 229910052782 aluminium Inorganic materials 0.000 claims description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000005219 brazing Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 description 6
- 238000007731 hot pressing Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000007790 scraping Methods 0.000 description 5
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- 238000001816 cooling Methods 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
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- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
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- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 229920002647 polyamide Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
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- 238000003756 stirring Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
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- 239000003063 flame retardant Substances 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of batteries, and particularly discloses a high-efficiency energy-absorbing battery pack structure which comprises an upper cover member, a bottom plate member and a side beam member, wherein the upper cover member, the bottom plate member and the side beam member jointly enclose a cavity for installing a battery cell module; the upper cover member comprises an upper cover upper layer plate and an upper cover lower layer plate, and an upper cover honeycomb core is arranged between the upper cover upper layer plate and the upper cover lower layer plate; the bottom plate member comprises a bottom plate lower layer plate and a bottom plate upper layer plate, and a bottom plate honeycomb core is arranged between the bottom plate lower layer plate and the bottom plate upper layer plate; the boundary beam member comprises an outer boundary beam and an inner boundary beam, and a boundary beam honeycomb core is arranged between the outer boundary beam and the inner boundary beam; the upper cover honeycomb core, the bottom plate honeycomb core and the nest Kong Junchao of the boundary beam honeycomb core face the battery cell module. The utility model can reduce the overall weight of the battery pack and improve the structural strength and the safety coefficient of the battery pack.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a high-efficiency energy-absorbing battery pack structure.
Background
The power battery pack of the new energy vehicle is generally arranged under the chassis of the whole vehicle, and the bottom of the battery pack can have the problems of foreign matter impact, scraping, supporting and the like in the running process of the vehicle, and the damage can influence the normal use function of the battery pack, and even can cause safety accidents such as thermal runaway or fire explosion and the like. In the prior art, a thicker reinforcing structure or metal structural plate is usually arranged at the bottom of the battery pack to avoid the problems of foreign matter impact, scraping, bottom supporting and the like, however, the design mode not only can increase the weight of the battery pack, but also can increase the material cost and the metal surface treatment process cost.
In addition, when the battery pack collides, the boundary beams are unevenly stressed, so that large deformation is easy to generate or the sharp angle directly pierces the battery core body, and the battery pack in the box body is easy to fail and even fires and explodes. For this reason, the present utility model aims to solve the above-mentioned problems.
Disclosure of utility model
The utility model aims to solve the technical problems that: how to overcome the defects of uneven collision deformation stress, high cost and insufficient protection strength of the bottom of the battery pack.
In order to solve the technical problems, the utility model provides a high-efficiency energy-absorbing battery pack structure which comprises an upper cover member, a bottom plate member and a side beam member, wherein the upper cover member, the bottom plate member and the side beam member jointly enclose a cavity for installing a battery cell module; the upper cover member comprises an upper cover upper layer plate and an upper cover lower layer plate, and an upper cover honeycomb core is arranged between the upper cover upper layer plate and the upper cover lower layer plate; the bottom plate member comprises a bottom plate lower layer plate and a bottom plate upper layer plate, and a bottom plate honeycomb core is arranged between the bottom plate lower layer plate and the bottom plate upper layer plate; the boundary beam member comprises an outer boundary beam and an inner boundary beam, and a boundary beam honeycomb core is arranged between the outer boundary beam and the inner boundary beam; the upper cover honeycomb core, the bottom plate honeycomb core and the nest Kong Junchao of the boundary beam honeycomb core face the battery cell module.
Further preferably, the upper cover upper layer plate, the upper cover lower layer plate, the bottom plate upper layer plate, the outer side beam and the inner side beam are steel plates or aluminum plates.
Further preferably, the upper cover honeycomb core, the bottom plate honeycomb core and the boundary beam honeycomb core are hexagonal honeycomb core structures woven by aluminum.
Further preferably, the outer side beam and the inner side beam are of split structures, and the outer side beam, the side beam honeycomb core and the inner side beam are connected through brazing.
Further preferably, the outer side beam and the inner side beam are of an integral structure, a cavity is formed between the outer side beam and the inner side beam, and the side beam honeycomb core is glued in the cavity.
Further preferably, the bottom plate honeycomb core is respectively connected with the bottom plate lower layer plate and the bottom plate upper layer plate in a brazing manner, and the bottom plate lower layer plate is connected with the inner edge beam in a welding manner or in a threaded manner.
Further preferably, the upper cover honeycomb core is respectively connected with the upper cover upper layer plate and the upper cover lower layer plate in a brazing manner, and the upper cover upper layer plate is connected with the inner edge beam in a welding manner or in a threaded manner.
Further preferably, the upper cover honeycomb core, the bottom plate honeycomb core and the boundary beam honeycomb core are polymer honeycomb cores.
Further preferably, the upper cover upper layer plate, the upper cover lower layer plate and the upper cover honeycomb core are in hot-pressing compound connection.
Further preferably, the bottom plate lower layer plate, the bottom plate upper layer plate and the bottom plate honeycomb core are in hot-pressing compound connection.
Compared with the prior art, the utility model provides a high-efficiency energy-absorbing battery pack structure, which has the beneficial effects that:
Firstly, the upper cover honeycomb core is arranged between the upper cover upper layer plate and the upper cover lower layer plate, the bottom plate honeycomb core is arranged between the bottom plate lower layer plate and the bottom plate upper layer plate, and the honeycomb holes of the upper cover honeycomb core and the bottom plate honeycomb core face the battery core module, so that the longitudinal structural strength of the battery pack can be ensured, the problems of foreign matter impact, scraping, bottom supporting and the like can be avoided, the material cost of the battery pack can be reduced, and the overall weight of the battery pack is reduced; secondly, be equipped with boundary beam honeycomb core between boundary beam and interior boundary beam, when boundary beam collision, boundary beam honeycomb core, upper cover honeycomb core and bottom plate honeycomb core combined action realize vertical and horizontal high-efficient energy-absorbing, and then block the transmission of energy for boundary beam collision deformation atress is more even, avoids causing the inside battery package of box to break down, even fires, the danger of explosion.
In summary, the high-efficiency energy-absorbing battery pack structure provided by the utility model can reduce the overall weight of the battery pack and improve the structural strength and the safety coefficient of the battery pack.
Drawings
Fig. 1 is a structural diagram of a high-efficiency energy-absorbing battery pack structure according to the present utility model.
Fig. 2 is an enlarged schematic view of the present utility model at a in fig. 1.
Fig. 3 is an exploded view of the side member of the present utility model.
Fig. 4 is an exploded view of the lower cover of the present utility model.
Fig. 5 is an exploded view of the upper cover of the present utility model.
In the figure:
10. An upper cover member; 101. covering the upper layer plate; 102. an upper cover lower plate; 103. covering the honeycomb core;
20. A base plate member; 201. a bottom plate lower plate; 202. a bottom plate upper plate; 203. a floor honeycomb core;
30. A side beam member; 301. an outer edge beam; 302. an inner edge beam; 303. a side beam honeycomb core;
40. and a battery cell module.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "between", "toward", etc. used in the present utility model are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the present embodiment provides a high-efficiency energy-absorbing battery pack structure, which includes an upper cover member 10, a bottom plate member 20, and a side beam member 30, wherein the upper cover member 10, the bottom plate member 20, and the side beam member 30 together enclose a chamber for mounting a battery cell module 40.
In a specific example, to reduce the weight of the battery pack while ensuring the structural strength of the battery pack, referring to fig. 2 to 5, the upper cover member 10 includes an upper cover upper plate 101 and an upper cover lower plate 102, an upper cover honeycomb core 103 is disposed between the upper cover upper plate 101 and the upper cover lower plate 102, the floor member 20 includes a lower floor plate 201 and an upper floor plate 202, and a floor honeycomb core 203 is disposed between the lower floor plate 201 and the upper floor plate 202, wherein the upper cover lower plate 102 and the upper floor plate 202 are both disposed in the cavity, and the holes of the upper cover honeycomb core 103 and the floor honeycomb core 203 are both directed toward the cell module 40; therefore, the longitudinal structural strength of the battery pack can be ensured, the problems of foreign matter impact, scraping, bottom supporting and the like can be avoided, the material cost of the battery pack can be reduced due to the arrangement of the honeycomb core, and the overall weight of the battery pack is reduced.
In a specific example, to ensure that the beam member 30 is more uniformly stressed in collision deformation, for this purpose, the beam member 30 includes an outer beam 301 and an inner beam 302, a beam honeycomb core 303 is disposed between the outer beam 301 and the inner beam 302, the inner beam 302 is disposed in the cavity, and the holes of the beam honeycomb core 303 face the cell module 40; therefore, when the boundary beams collide, the boundary beam honeycomb core 303, the upper cover honeycomb core 103 and the bottom plate honeycomb core 203 jointly act to realize longitudinal and transverse efficient energy absorption, so that energy transmission is blocked, the boundary beam collision deformation stress is more uniform, and the danger of causing faults, even ignition and explosion of the battery pack in the box body is avoided.
In the above example, the upper cover honeycomb core 103, the floor honeycomb core 203, and the side sill honeycomb core 303 are hexagonal honeycomb core structures woven from aluminum. By adopting the structure, the damage degree of the battery cell module 40 can be reduced when the battery pack is impacted, and the impact force can be absorbed to the greatest extent.
In some embodiments, the upper deck plate 101, the upper deck lower deck plate 102, the lower floor plate 201, the upper floor plate 202, the outer side beams 301, and the inner side beams 302 are steel plates or aluminum plates.
In some embodiments, the floor honeycomb core 203 is brazed to the floor lower deck 201 and the floor upper deck 202, respectively, and the floor lower deck 201 is welded or bolted to the inner side rail 302.
In the above example, the floor honeycomb core 203 is an aluminum honeycomb core, and the floor lower plate 201 and the floor upper plate 202 may be an upper layer aluminum plate+a lower layer aluminum plate, wherein the lower layer aluminum plate is welded with the side sill by stirring or laser welding.
In another example, the underfloor deck 201 and the underfloor deck 202 may be brazed using an upper aluminum plate+lower steel plate, wherein the lower steel plate is screwed to the side sill.
In some embodiments, the upper honeycomb core 103 is brazed to the upper and lower deck plates 101, 102, respectively, and the upper deck plate 101 is welded or bolted to the inner side rail 302.
In the above example, the upper cover honeycomb core 103 is an aluminum honeycomb core, and may be welded or screwed to the inner edge beam 302 by means of an upper aluminum plate+lower aluminum plate, or an upper aluminum plate+lower steel plate.
In some embodiments, the upper cover honeycomb core 103, the floor honeycomb core 203, and the edge beam honeycomb core 303 are polymeric honeycomb cores; the lower plate 201, the upper plate 202 and the honeycomb core 203 are connected in a hot-pressing mode, and the upper plate 101, the upper plate 102 and the upper honeycomb core 103 are connected in a hot-pressing mode.
It should be noted that the polymer honeycomb core is mainly a polymer honeycomb core, and the polymer honeycomb core is made of polymer (such as polypropylene, polystyrene, etc.) foam or the existing material processed into a honeycomb structure, and has the characteristics of light weight, good flame retardant property, difficult deformation, etc., and can improve the effect of blocking energy transmission while improving the protection strength of the structure.
In the above example, the lower plate 201 and the upper plate 202 of the bottom plate may be formed by hot pressing and compounding by using an upper water cooling plate+a lower aluminum plate, an upper water cooling plate+a lower steel plate, an upper aluminum plate+a lower aluminum plate, an upper aluminum plate+a lower steel plate, an upper composite material+a lower aluminum plate, and an upper composite material+a lower steel plate, wherein the lower aluminum plate is connected with the inner side beam 302 by stirring welding or laser welding, and the lower steel plate is connected with the inner side beam 302 by screwing; the water cooling plate is arranged at the bottom of the battery cell module 40, so that heat dissipation can be performed on the battery cell module 40, and the water cooling plate is connected with the battery cell module 40 through heat conduction glue.
In the above example, the upper cover upper layer plate 101 and the upper cover lower layer plate 102 may be formed by hot press and composite molding in a manner of upper layer aluminum plate+lower layer aluminum plate, upper layer aluminum plate+lower layer steel plate, upper layer composite material+lower layer aluminum plate, upper layer composite material+lower layer steel plate, upper layer steel plate+lower layer aluminum plate, upper layer steel plate+lower layer composite material.
The upper layer composite material or the lower layer composite material can be any one of the existing glass fiber reinforced polypropylene composite material or continuous glass fiber reinforced polyamide composite material or continuous glass fiber reinforced polyurethane composite material. The glass fiber reinforced polypropylene composite material or the continuous glass fiber reinforced polyamide composite material or the continuous glass fiber reinforced polyurethane composite material has the performances of light weight, corrosion resistance, aging resistance, acid and alkali resistance, engine oil resistance and the like, and compared with an aluminum plate or a steel plate, the overall weight of the battery pack can be further reduced.
In some embodiments, the outer beam 301 and the inner beam 302 are aluminum profiles, the outer beam 301 and the inner beam 302 are in a split structure, and the outer beam 301, the side beam honeycomb core 303 and the inner beam 302 are connected through brazing; therefore, when the outer beam 301 is stressed, the middle side beam honeycomb core 303 can absorb energy and then transmit the energy to the inner side beam 302, so that the damage to the cell module 40 is reduced.
In other embodiments, the outer beam 301 and the inner beam 302 may be designed as an integral structure, and a cavity is formed between the outer beam 301 and the inner beam 302, and the side beam honeycomb core 303 is fixed by glue injection after being plugged into the cavity of the profile.
In summary, according to the efficient energy-absorbing battery pack structure provided by the embodiment of the utility model, the upper cover honeycomb core 103 is arranged between the upper cover upper layer plate 101 and the upper cover lower layer plate 102, the bottom plate honeycomb core 203 is arranged between the bottom plate lower layer plate 201 and the bottom plate upper layer plate 202, and the holes of the upper cover honeycomb core 103 and the bottom plate honeycomb core 203 face the battery cell module 40, so that the longitudinal structural strength of the battery pack can be ensured, the problems of foreign matter impact, scraping, bottom supporting and the like can be avoided, the material cost of the battery pack can be reduced, and the overall weight of the battery pack can be reduced by arranging the honeycomb core; secondly, be equipped with boundary beam honeycomb core 303 between boundary beam 301 and interior boundary beam 302, when boundary beam collision, boundary beam honeycomb core 303, upper cover honeycomb core 103 and bottom plate honeycomb core 203 combined action realize vertical and horizontal high-efficient energy-absorbing, and then block the transmission of energy for boundary beam collision deformation atress is more even, avoids causing the battery package of box inside to break down, fires even, the danger of explosion.
In summary, the high-efficiency energy-absorbing battery pack structure provided by the utility model can reduce the overall weight of the battery pack and improve the structural strength and the safety coefficient of the battery pack.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model. While there has been shown and described what are at present considered to be fundamental principles, main features and advantages of the present utility model, it will be apparent to those skilled in the art that the present utility model is not limited to the details of the foregoing preferred embodiments, and that the examples should be considered as exemplary and not limiting, the scope of the present utility model being defined by the appended claims rather than by the foregoing description, and it is therefore intended to include within the utility model all changes which fall within the meaning and range of equivalency of the claims.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail herein, but rather is provided for the purpose of enabling those skilled in the art to make and use the embodiments described herein.
Claims (10)
1. The high-efficiency energy-absorbing battery pack structure is characterized by comprising an upper cover member (10), a bottom plate member (20) and a side beam member (30), wherein the upper cover member (10), the bottom plate member (20) and the side beam member (30) jointly enclose a cavity for installing an electric core module (40); the upper cover member (10) comprises an upper cover upper layer plate (101) and an upper cover lower layer plate (102), and an upper cover honeycomb core (103) is arranged between the upper cover upper layer plate (101) and the upper cover lower layer plate (102); the base plate member (20) comprises a base plate lower layer plate (201) and a base plate upper layer plate (202), and a base plate honeycomb core (203) is arranged between the base plate lower layer plate (201) and the base plate upper layer plate (202); the boundary beam member (30) comprises an outer boundary beam (301) and an inner boundary beam (302), and a boundary beam honeycomb core (303) is arranged between the outer boundary beam (301) and the inner boundary beam (302); the upper cover honeycomb core (103), the bottom plate honeycomb core (203) and the nest Kong Junchao of the edge beam honeycomb core (303) face the battery cell module (40).
2. The efficient energy-absorbing battery pack structure according to claim 1, wherein the upper cover upper layer plate (101), the upper cover lower layer plate (102), the bottom plate lower layer plate (201), the bottom plate upper layer plate (202), the outer side beams (301) and the inner side beams (302) are steel plates or aluminum plates.
3. A high efficiency energy absorbing battery pack structure as defined in claim 1, wherein said upper cover honeycomb core (103), floor honeycomb core (203) and edge beam honeycomb core (303) are hexagonal honeycomb core structures braided from aluminum.
4. A high efficiency energy absorbing battery pack structure according to claim 3, wherein the outer beam (301) and the inner beam (302) are of split structure, and the outer beam (301), the side beam honeycomb core (303) and the inner beam (302) are connected by brazing.
5. A high efficiency energy absorbing battery pack structure according to claim 3, wherein the outer beam (301) and the inner beam (302) are integrally formed, a cavity is formed between the outer beam (301) and the inner beam (302), and the side beam honeycomb core (303) is glued in the cavity.
6. A high efficiency energy absorbing battery pack structure as defined in claim 3, wherein said floor honeycomb core (203) is brazed to said floor lower plate (201) and floor upper plate (202), respectively, said floor lower plate (201) being welded or screwed to said inner side rail (302).
7. A high efficiency energy absorbing battery pack structure according to claim 3, wherein the upper cover honeycomb core (103) is respectively connected with the upper cover upper layer plate (101) and the upper cover lower layer plate (102) by brazing, and the upper cover upper layer plate (101) is connected with the inner side beam (302) by welding or screwing.
8. The efficient energy-absorbing battery pack structure of claim 1, wherein the upper cover honeycomb core (103), the bottom plate honeycomb core (203) and the edge beam honeycomb core (303) are polymer honeycomb cores.
9. The efficient energy-absorbing battery pack structure according to claim 8, wherein the upper cover upper layer plate (101), the upper cover lower layer plate (102) and the upper cover honeycomb core (103) are in hot-press composite connection.
10. A high efficiency energy absorbing battery pack structure as defined in claim 8, wherein said underfloor laminate (201), underfloor laminate (202) and underfloor honeycomb core (203) are thermally and pressure bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323005818.6U CN221009087U (en) | 2023-11-07 | 2023-11-07 | High-efficient energy-absorbing battery package structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323005818.6U CN221009087U (en) | 2023-11-07 | 2023-11-07 | High-efficient energy-absorbing battery package structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221009087U true CN221009087U (en) | 2024-05-24 |
Family
ID=91126841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323005818.6U Active CN221009087U (en) | 2023-11-07 | 2023-11-07 | High-efficient energy-absorbing battery package structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221009087U (en) |
-
2023
- 2023-11-07 CN CN202323005818.6U patent/CN221009087U/en active Active
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Effective date of registration: 20240718 Granted publication date: 20240524 |
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