CN220856764U - Battery box and battery pack - Google Patents
Battery box and battery pack Download PDFInfo
- Publication number
- CN220856764U CN220856764U CN202322476695.8U CN202322476695U CN220856764U CN 220856764 U CN220856764 U CN 220856764U CN 202322476695 U CN202322476695 U CN 202322476695U CN 220856764 U CN220856764 U CN 220856764U
- Authority
- CN
- China
- Prior art keywords
- guard plate
- bottom guard
- battery
- adhesive
- cavity
- 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
- 239000000853 adhesive Substances 0.000 claims abstract description 43
- 230000001070 adhesive effect Effects 0.000 claims abstract description 43
- 239000003292 glue Substances 0.000 claims description 34
- 238000003860 storage Methods 0.000 claims description 32
- 238000003466 welding Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims 2
- 230000001681 protective effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 229920000297 Rayon Polymers 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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 discloses a battery box and a battery pack. The battery box comprises a bottom guard plate, and a cavity is formed in the bottom guard plate; the box body is connected with the bottom guard plate to define a containing cavity; and the limiting piece is arranged in the accommodating cavity and used for limiting the dosage of the adhesive. According to the utility model, the limiting piece in the accommodating cavity is used for limiting the adhesive, so that the adhesive is prevented from being squeezed off by the battery core when the battery core is assembled, the battery core can be effectively adhered, the battery core is prevented from being displaced in the accommodating cavity to cause a short circuit accident, meanwhile, the cavity is arranged in the bottom guard plate, so that the bottom guard plate is of a double-layer structure, deformation and collapse are realized when the bottom guard plate of the double-layer structure meets bottom ball impact, the protection effect of the bottom guard plate is improved, and the possibility of damage of the battery core in the accommodating cavity due to bottom ball impact is reduced, so that effective fixing and protection are provided for the battery core, and the safety of the battery core in the accommodating cavity is further ensured.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery box and a battery pack.
Background
In the prior art, a box body and a bottom guard plate of a battery pack are usually produced independently and assembled together, then a battery cell is adhered to the bottom guard plate by using structural adhesive and other adhesives, and in order to meet the bottom knocking, bottom scraping and bottom ball striking requirements of the bottom of the battery pack during running of an automobile, the bottom guard plate is usually made of a steel plate with higher strength. Therefore, the following problems are common to the existing battery packs: 1. the assembly of the box body and the bottom guard plate needs to consume a large amount of bolts, rivet nuts and sealing strips, so that the production cost is increased; 2. the waterproof failure risk exists in the sealing strip between the box body and the bottom guard plate; 3. the steel bottom guard plate can greatly increase the weight of the battery pack, so that the product is overweight, and the steel bottom guard plate has the risk of corrosion and rust after the coating of the steel bottom guard plate is damaged; 4. when the battery cell is assembled, the adhesive such as the structural adhesive is easy to squeeze out, so that the battery cell cannot be reliably adhered to the bottom guard plate.
Disclosure of utility model
In order to overcome at least one of the defects described in the prior art, the utility model provides a battery box which can reliably fix a battery cell and reduce the probability of damaging the battery cell in a containing cavity due to bottom ball striking.
According to an embodiment of the utility model, a battery box includes: the bottom guard board is internally provided with a cavity; the box body is connected with the bottom guard plate to define a containing cavity; and the limiting piece is arranged in the accommodating cavity and used for limiting the adhesive.
In this battery box, through spacing piece in the holding chamber is prescribe a limit to the viscose, and the electric core is crowded the viscose when avoiding assembling the electric core to can effectively glue tight electric core, prevent that the electric core from being in the displacement takes place in the holding chamber, cause the short circuit accident, simultaneously the bottom backplate is inside to be provided with the die cavity, so that the bottom backplate is bilayer structure, through being bilayer structure deformation crumple when the bottom backplate satisfies the bottom ball and hit, and promote the guard effect of bottom backplate, in order to reduce the electric core in the holding chamber and hit the impaired probability because of the bottom ball, thereby provide effectual fixed and protection to the electric core, and then ensure electric core is in holding intracavity security.
According to some embodiments of the utility model, the limiting piece comprises a plurality of glue storage grooves, and the glue storage grooves are formed in the bottom guard plate.
In this battery box, through will glue injection in the glue storage groove utilizes glue storage groove is limited the component and the position of glue, when the electric core assembly to on the backplate at the bottom, utilize glue in the glue storage groove glues tight electric core to can prevent that the viscose from being fallen by the extrusion of electric core.
According to some embodiments of the utility model, the base shield further comprises an insulating layer coated on the base shield.
According to some embodiments of the utility model, the insulating layer is composed of epoxy.
According to some embodiments of the utility model, the tank and the bottom guard plate are integrally formed by friction stir welding.
According to some embodiments of the utility model, the edge of the bottom guard plate is provided with a connecting portion, and the connecting portion and the box body are integrated through friction stir welding.
According to some embodiments of the utility model, the box further comprises a reinforcing rib structure, and the box body and the bottom guard plate are fixedly connected with the reinforcing rib structure.
According to some embodiments of the utility model, the bottom guard plate is an extruded profile.
According to some embodiments of the utility model, the bottom guard plate is aluminum.
Based on the same inventive concept, the utility model also provides a battery pack comprising the battery box.
In summary, the battery box provided by the utility model has the following technical effects:
Through limiting part in the holding chamber prescribes a limit to the viscose, avoid the electric core to squeeze off the viscose when adorning the electric core to can effectively glue tight electric core, prevent that the electric core from being in the displacement takes place for holding intracavity, cause the short circuit accident, simultaneously the inside die cavity that is provided with of end backplate, so that end backplate is bilayer structure, through being bilayer structure the deformation is collapsed when end backplate satisfies the bottom ball and hits, and promotes the protection effect of end backplate, in order to reduce the electric core in the holding chamber and hit impaired probability because of the bottom ball, thereby provide effectual fixed and protection to the electric core, and then ensure electric core is in holding intracavity security.
Drawings
Fig. 1 is a schematic structural view of a battery box according to an embodiment of the present utility model;
fig. 2 is a schematic view of a battery box according to an embodiment of the present utility model.
Wherein the reference numerals have the following meanings:
1. A bottom guard board; 11. a cavity; 12. a connection part; 2. a case; 3. a limiting piece; 31. a glue storage groove; 4. a reinforcing rib structure; 5. the accommodating cavity.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1 and 2, the utility model discloses a battery box, which comprises a bottom guard plate 1 and a box body 2, and in some embodiments, a limiting piece 3, wherein the limiting piece 3 is arranged in the accommodating cavity 5 and is used for limiting adhesive, a cavity 11 is arranged inside the bottom guard plate 1, and the box body 2 is connected with the bottom guard plate 1 to limit the accommodating cavity 5. Optionally, the case 2 and the bottom guard plate 1 are connected to each other to define a receiving cavity 5, and the receiving cavity 5 is used for accommodating the electric core. In some embodiments, the limiting piece 3 in the accommodating cavity 5 limits the adhesive, so that the battery core is prevented from extruding the adhesive when the battery core is assembled, the battery core can be effectively adhered tightly, the battery core is prevented from being displaced in the accommodating cavity 5, short-circuit accidents are caused, meanwhile, the cavity 11 is arranged in the bottom guard plate 1, the bottom guard plate 1 is in a double-layer structure, deformation and shrinkage are realized when the bottom guard plate 1 meets bottom ball impact through the double-layer structure, and the protection effect of the bottom guard plate 1 is improved, so that the probability that the battery core in the accommodating cavity 5 is damaged due to bottom ball impact is reduced, and therefore effective fixing and protection are provided for the battery core, and the safety of the battery core in the accommodating cavity 5 is further ensured. Optionally, the box body 2 and the bottom guard plate 1 may be connected by means of bolting, riveting, snap-on connection, etc.; optionally, the adhesive may be a structural adhesive; optionally, the limiting piece 3 can limit the amount of the adhesive by limiting the area of the adhesive, or the limiting piece 3 can limit the amount of the adhesive by limiting the height of the adhesive, so that the battery cell is prevented from extruding the adhesive when the battery cell is assembled, and the battery cell can be effectively adhered. Optionally, the limiting piece 3 can limit the position of the adhesive so as to prevent the adhesive from being squeezed out by the battery core when the battery core is assembled, and can effectively adhere to the battery core; optionally, the position and the amount of the adhesive can be limited by the limiting piece 3, so that the adhesive is prevented from being squeezed out by the battery core when the battery core is assembled, and the battery core can be effectively adhered.
Referring to fig. 1 and 2, in some embodiments, the limiting member 3 includes a plurality of glue storage grooves 31, and the glue storage grooves 31 are formed on the bottom guard plate 1. Optionally, the glue storage grooves 31 may be arranged in one-to-one correspondence with the electric cores, and optionally, the glue storage grooves 31 may be arranged in one-to-many correspondence with the electric cores. Optionally, the adhesive is injected into the adhesive storage groove 31, the adhesive storage groove 31 is used for limiting the component and the position of the adhesive, when the battery cell is assembled on the bottom guard plate 1, the battery cell is tightly adhered by the adhesive in the adhesive storage groove 31, and the adhesive can be prevented from being extruded by the battery cell; alternatively, the limitation of the component of the adhesive storage tank 31 may be achieved by limiting the height of the adhesive within the adhesive storage tank 31.
In some embodiments, an insulating layer is further included, which is coated on the bottom shield 1. The insulation layer is used for driving the bottom guard plate 1 and the battery cell to keep insulated so as to avoid electric leakage or short circuit accidents, and optionally, the insulation layer is coated on one side end surface of the bottom guard plate 1, where the glue storage groove 31 is formed, namely, the glue storage groove 31 is internally coated with the insulation layer as well, and then the glue is injected into the glue storage groove 31 so that the battery cell can be tightly adhered to the bottom guard plate 1, and meanwhile, the bottom guard plate 1 and the battery cell can be driven to keep good insulation.
In some embodiments, the insulating layer is composed of epoxy. The epoxy resin has good heat conduction performance, insulating strength and good bonding performance, and is directly sprayed on the surface of the bottom guard plate 1, so that the epoxy resin and the bottom guard plate 1 can be driven to form good bonding, and the insulating layer is formed on the surface of the bottom guard plate 1, so that the bottom guard plate 1 and the battery cell are kept well insulated, and heat generated by the battery cell can be transferred and diffused by utilizing the good heat conduction performance of the epoxy resin, so that the heat dissipation effect of the battery box on the battery cell is ensured.
Referring to fig. 1 and 2, in some embodiments, the tank 2 is integral with the backplate 1 by friction stir welding. That is, the box body 2 and the bottom guard plate 1 are fused into a whole through friction stir welding, so that the traditional assembly process is replaced by adopting bolts and rivet nuts to connect the box body 2 with the bottom guard plate 1, and an old process of waterproof sealing strips is needed to be added on the bolts and the rivet nuts, so that the problem of waterproof failure of the sealing strips can be avoided, and the use of the sealing strips, the bolts, the rivet nuts and other connecting pieces is reduced, so that the cost reduction and efficiency improvement are realized.
Referring to fig. 1 and 2, in some embodiments, the edge of the bottom guard plate 1 is provided with a connecting portion 12, and the connecting portion 12 is integrally formed with the case 2 through friction stir welding. Optionally, the connecting portion 12 and the bottom guard plate 1 are integrally formed; optionally, CNC machining may be performed on the edge of the bottom protection plate 1, so that the peripheral edges of the bottom protection plate 1 form the connection portion 12, the edge beam of the box 2 and the connection portion 12 at the edge of the bottom protection plate 1 are integrally formed by friction stir welding, that is, the box 2 and the bottom protection plate 1 are integrally formed by friction stir welding, so that the box 2 is driven to enclose the peripheral edge of the bottom protection plate 1, and further define the accommodating cavity 5, where the limiting member 3 is disposed in the accommodating cavity 5, that is, the glue storage groove 31 is only required to be disposed on the end surface of the bottom protection plate 1 in the accommodating cavity 5, so as to define an area where the glue storage groove 31 is disposed, further define an area where glue is disposed, save the amount of glue, and ensure that the box 2 and the connection portion 12 have a sufficient contact area, so that the connection between the box 2 and the bottom protection plate 1 is more stable.
Referring to fig. 1 and 2, in some embodiments, the base protection plate further includes a reinforcing rib structure 4, and the tank 2 and the base protection plate 1 are fixedly connected with the reinforcing rib structure 4. Optionally, the reinforcing ribs are arranged in the accommodating cavity 5, namely, on the inner side of the box body 2, the connection between the box body 2 and the bottom guard plate 1 is further reinforced by the reinforcing rib structure 4, and the strength of the bottom guard plate 1 is enhanced; optionally, the reinforcing rib structure 4 and the box body 2 and the bottom guard plate 1 may be fixedly connected through bolt connection, riveting, snap connection, welding, or the like.
In some embodiments, the bottom guard plate 1 is an extruded profile. Namely, the extrusion process is adopted to produce the section bar for manufacturing the bottom guard plate 1, wherein the cavity 11 is arranged in the bottom guard plate 1, the bottom guard plate 1 is divided into an upper-lower double-layer structure by the cavity 11, so that the bottom guard plate 1 with the double-layer structure can deform and collapse when a bottom ball is hit, the protection effect of the bottom guard plate 1 on a battery cell is improved, and the probability that the battery cell in the accommodating cavity 5 is damaged due to the bottom ball hit is reduced.
In some embodiments, the bottom guard plate 1 is made of aluminum. Optionally, the bottom guard plate 1 is made of aluminum metal; optionally, the bottom guard plate 1 is made of aluminum alloy; optionally, the aluminum bottom guard plate 1 replaces the conventional steel bottom guard plate 1, so that the weight of the battery box is reduced, and the purpose of light weight is achieved.
Optionally, the bottom guard plate 1 is formed by extrusion molding of aluminum, that is, the bottom guard plate 1 is an aluminum extrusion piece, has remarkable corrosion resistance, corrosion resistance and weather resistance, can absorb impact energy, keeps strength and flexibility under load, and rebounds from impact, so that the requirements of light weight, low cost, capability of meeting the requirements of bottom ball striking, corrosion resistance, water resistance and the like are realized.
In some embodiments, a battery pack includes a battery compartment as described above.
Referring to fig. 1 and 2, in some embodiments, the cavity 11 is disposed inside the bottom protection plate 1 formed by extrusion molding, the bottom protection plate 1 is divided into an upper and a lower double-layer structure by using the cavity 11, so that the bottom protection plate 1 with the double-layer structure can deform and collapse when a ball is struck at the bottom, and the protection effect of the bottom protection plate 1 is improved, so as to reduce the probability that the battery cells in the accommodating cavity 5 are damaged due to the ball striking at the bottom, and a plurality of glue storage grooves 31 for limiting glue are formed in the bottom protection plate 1. Optionally, the glue storage grooves 31 may be arranged in one-to-one correspondence with the electric cores, and optionally, the glue storage grooves 31 may be arranged in one-to-many correspondence with the electric cores. Optionally, the adhesive is injected into the adhesive storage groove 31, the adhesive storage groove 31 is used for limiting the component and the position of the adhesive, when the battery cell is assembled on the bottom guard plate 1, the adhesive in the adhesive storage groove 31 can be used for tightly adhering the battery cell, and the adhesive is prevented from being extruded by the battery cell, so that the battery cell is prevented from being displaced in the accommodating cavity 5 to cause a short circuit accident; alternatively, the limitation of the component of the adhesive storage tank 31 may be achieved by limiting the height of the adhesive within the adhesive storage tank 31. Optionally, an insulating layer made of epoxy resin is sprayed on the surface of the bottom guard plate 1, so that the bottom guard plate 1 and the battery cell are well insulated, and heat generated by the battery cell can be transferred and diffused by utilizing good heat conduction performance of the epoxy resin, so that the heat dissipation effect of the battery box on the battery cell is ensured. Optionally, the edge of the bottom guard plate 1 is provided with a connecting portion 12, the connecting portion 12 and the box body 2 are integrally welded through friction stir welding, that is, the box body 2 and the bottom guard plate 1 are integrally welded through friction stir welding, so that the box body 2 is driven to be surrounded at the peripheral edge of the bottom guard plate 1, and then the accommodating cavity 5 is limited, wherein the limiting piece 3 is arranged in the accommodating cavity 5, that is, the glue storage groove 31 only needs to be arranged on the end surface of the bottom guard plate 1 in the accommodating cavity 5, so that the area where the glue storage groove 31 is formed is limited, the area where glue is arranged is further limited, the consumption of glue is saved, the box body 2 and the connecting portion 12 can be ensured to have enough contact area, the box body 2 and the bottom guard plate 1 are more firmly connected, the box body 2 and the bottom guard plate 1 are connected by bolts and the blind strip instead of bolts and the blind rivet nuts in the traditional assembly procedure, the old processes of adding the bolts and the blind rivet nuts are needed, the waterproof technology is increased, the waterproof technology of the blind rivet nuts is reduced, the blind rivet nuts are avoided, the blind rivet nuts are lost, and the sealing strip is prevented from being lost, and the blind rivet nuts are lost.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (10)
1. A battery box, comprising:
a bottom guard board (1), wherein a cavity (11) is arranged in the bottom guard board (1);
The box body (2) is connected with the bottom guard plate (1) to define a containing cavity (5);
the limiting piece (3), the limiting piece (3) is arranged in the accommodating cavity (5) and used for limiting the adhesive.
2. The battery box according to claim 1, wherein: the limiting piece (3) comprises a plurality of glue storage grooves (31), and the glue storage grooves (31) are formed in the bottom guard plate (1).
3. The battery box according to claim 1, wherein: the novel protective cover further comprises an insulating layer, wherein the insulating layer is coated on the bottom guard plate (1).
4. A battery compartment as claimed in claim 3, wherein: the insulating layer is made of epoxy resin.
5. The battery box according to claim 1, wherein: the box body (2) and the bottom guard plate (1) are integrally welded through friction stir welding.
6. The battery box according to claim 5, wherein: the edge of the bottom guard plate (1) is provided with a connecting part (12), and the connecting part (12) and the box body (2) are integrated through friction stir welding.
7. The battery box according to claim 1, wherein: still include strengthening rib structure (4), box (2) with backplate (1) all with strengthening rib structure (4) fixed connection.
8. The battery box according to claim 1, wherein: the bottom guard board (1) is an extrusion profile.
9. The battery box as claimed in claim 8, wherein: the bottom guard board (1) is made of aluminum.
10. A battery pack, characterized in that: a battery compartment comprising the battery of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476695.8U CN220856764U (en) | 2023-09-12 | 2023-09-12 | Battery box and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322476695.8U CN220856764U (en) | 2023-09-12 | 2023-09-12 | Battery box and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220856764U true CN220856764U (en) | 2024-04-26 |
Family
ID=90787264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322476695.8U Active CN220856764U (en) | 2023-09-12 | 2023-09-12 | Battery box and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220856764U (en) |
-
2023
- 2023-09-12 CN CN202322476695.8U patent/CN220856764U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |