CN219838280U - Vehicle and composite fender - Google Patents
Vehicle and composite fender Download PDFInfo
- Publication number
- CN219838280U CN219838280U CN202321034660.2U CN202321034660U CN219838280U CN 219838280 U CN219838280 U CN 219838280U CN 202321034660 U CN202321034660 U CN 202321034660U CN 219838280 U CN219838280 U CN 219838280U
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- composite material
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- reinforced
- foam
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- 239000002131 composite material Substances 0.000 title claims abstract description 94
- 239000000463 material Substances 0.000 claims description 59
- -1 polypropylene Polymers 0.000 claims description 50
- 239000004743 Polypropylene Substances 0.000 claims description 42
- 229920001155 polypropylene Polymers 0.000 claims description 42
- 239000000835 fiber Substances 0.000 claims description 17
- 239000003365 glass fiber Substances 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 14
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 229920006231 aramid fiber Polymers 0.000 claims description 14
- 239000004917 carbon fiber Substances 0.000 claims description 14
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- 239000011777 magnesium Substances 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000006261 foam material Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 239000006262 metallic foam Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 143
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002313 adhesive film Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000805 composite resin Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model provides a vehicle and a composite protection plate. The support layer is used for connecting to the protected piece. The buffer layer is connected to the support layer. The main energy-absorbing layer is connected to the buffer layer, and the main energy-absorbing layer includes first layer, second layer and third layer, and the third layer is connected to the buffer layer, and the second layer sets up between first layer and third layer, and the flexural modulus of second layer is not more than the flexural modulus of first layer and the flexural modulus of third layer. The composite protection plate has the effects of light weight and good comprehensive protection performance.
Description
Technical Field
The present utility model relates generally to the field of battery protection, and more particularly to a vehicle and composite fender.
Background
Currently, in order to have a lower center of gravity, a power battery pack of a new energy vehicle is generally installed at the vehicle bottom. In the running process of the vehicle, the battery at the bottom of the vehicle is easy to be impacted by foreign objects such as stones splashed on the road surface, the bottom of the battery pack is easy to scratch the ground in the ascending process of the vehicle or when the vehicle passes over road teeth, the damage of the external force to the battery pack can influence the normal operation of the battery pack, and even adverse safety accidents such as thermal runaway or fire explosion can be caused in serious cases.
In the prior art, there are protection plate schemes using single steel plate or aluminum alloy, but the weight is large, the comprehensive performance is poor, and the requirement of light weight of the automobile is difficult to meet.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, a first aspect of the present utility model provides a composite protection plate, which is characterized by comprising:
a support layer for connection to a protected piece;
a buffer layer connected to the support layer; and
the main energy absorption layer comprises a first layer, a second layer and a third layer, wherein the third layer is connected to the buffer layer, the second layer is arranged between the first layer and the third layer, and the flexural modulus of the second layer does not exceed the flexural modulus of the first layer and the flexural modulus of the third layer.
According to the composite protection plate of the first aspect of the utility model, the main energy absorption layer is used for resisting external impact, the buffer layer is used for buffering the main energy absorption layer and slowing down deformation of the main energy absorption layer, the supporting layer is used for connecting a protected piece, and connection between the composite protection plate and the protected piece is reinforced, so that the protected piece is protected, and compared with the existing protection plate of a single steel plate type, the composite protection plate has better comprehensive performance, lighter weight and the requirement of light weight of a composite automobile; the main energy-absorbing layer adopts a three-layer structure, the bending modulus of the second layer does not exceed the bending modulus of the first layer and the bending modulus of the third layer, the deformation resistance of the first layer and the third layer and the toughening energy-absorbing performance of the second layer are fully exerted, the deformation of the composite protection plate after being impacted is smaller, the damage to the protected piece is reduced, and the protection effect is improved.
Optionally, the material of the first layer is one or more of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material; and/or
The third layer is made of one or more of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material.
Optionally, the material of the second layer is one or more of carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material.
Optionally, the flexural modulus of the first layer and the third layer are identical.
Optionally, the thickness of the main energy absorption layer is not smaller than that of the supporting layer, and the overall thickness of the composite protection plate is 2mm to 20mm.
Optionally, the support layer is made of a material; or alternatively
The supporting layer is formed by compounding at least two materials with different flexural modulus.
Optionally, the material of the supporting layer is one or more of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material.
Optionally, the buffer layer is one or more of polyethylene foam material, polypropylene foam material, polyvinyl chloride foam material, polyethylene terephthalate foam, polyurethane foam, polyimide foam, metal foam, polypropylene honeycomb and aluminum honeycomb material.
Optionally, a surface protection layer is disposed on a side of the first layer away from the second layer, and the surface protection layer is at least one of paint, plastic, rubber and composite material.
A second aspect of the utility model provides a vehicle comprising:
a battery pack; and
according to the aforementioned composite protection plate, a side of the support layer away from the buffer layer is connected to the battery pack.
According to the vehicle disclosed by the second aspect of the utility model, the protection effect on the battery pack is improved, and the composite protection plate is adopted, so that the quality of the whole vehicle is reduced, and the endurance mileage is prolonged.
Drawings
The following drawings of embodiments of the present utility model are included as part of the utility model. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,
fig. 1 is a layer structure schematic diagram of a composite shield plate according to a preferred embodiment of the present utility model; and
fig. 2 is a schematic view of the installation of the composite shield of fig. 1.
Description of the reference numerals
100: battery pack 101: protection area
110: support layer 120: buffer layer
130: primary energy absorbing layer 131: first layer
132: second layer 133: third layer
140: surface protection layer X: in the thickness direction
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that embodiments of the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the utility model.
Herein, ordinal words such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".
In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used merely to indicate relative positional relationships between the relevant portions, and do not limit the absolute positions of the relevant portions.
Herein, "equal," "same," etc. are not strictly mathematical and/or geometric limitations, but also include deviations that may be appreciated by those skilled in the art and allowed by fabrication or use, etc.
Unless otherwise indicated, numerical ranges herein include not only the entire range within both of its endpoints, but also the several sub-ranges contained therein.
Fig. 1 and 2 show a composite shield according to the present utility model, including a support layer 110, a buffer layer 120, and a primary energy absorbing layer 130, along a thickness direction X of the composite shield. The support layer 110 is for connection to a protected piece. The buffer layer 120 is connected to the support layer 110.
The primary energy absorbing layer 130 is connected to the cushioning layer 120, specifically, the primary energy absorbing layer 130 includes a first layer 131, a second layer 132, and a third layer 133, the third layer 133 is connected to the cushioning layer 120, the second layer 132 is disposed between the first layer 131 and the third layer 133, and the flexural modulus of the second layer 132 does not exceed the flexural modulus of the first layer 131 and the flexural modulus of the third layer 133.
According to the composite protection plate of the utility model, the main energy absorbing layer 130 is used for resisting external impact, the buffer layer 120 is used for buffering the main energy absorbing layer 130 and slowing down the deformation of the main energy absorbing layer 130, the supporting layer 110 is used for connecting a protected piece, and the connection between the composite protection plate and the protected piece is reinforced, so that the protected piece is protected. The main energy absorbing layer 130 adopts a three-layer structure, and the flexural modulus of the second layer 132 does not exceed the flexural modulus of the first layer 131 and the flexural modulus of the third layer 133, so that the deformation resistance of the first layer 131 and the third layer 133 and the toughening energy absorbing performance of the second layer 132 are fully exerted, the deformation of the composite protection plate after being impacted is smaller, the damage to the protected piece is reduced, and the protection effect is improved.
Alternatively, in general, the flexural modulus of the cushioning layer 120 and the flexural modulus of the support layer 110 are both less than the flexural modulus of the primary energy absorbing layer 130.
Further, the flexural modulus of the first layer 131 and the third layer 133 are uniform. Optionally, the first layer 131 is of uniform thickness with the third layer 133. Therefore, the first layer 131 and the third layer 133 can be made of the same material, which is beneficial to processing and cost reduction.
Optionally, the thickness of the main energy absorbing layer 130 is not less than the thickness of the support layer 110, and the overall thickness of the composite shield is 2mm to 20mm. The overall thickness of the composite shield plate is preferably 14mm, which facilitates the installation and placement of the protected components (e.g., battery pack 100 for protecting vehicles, which can ensure that the vehicle has sufficient ground clearance). In addition, the thickness of the buffer layer 120 is not less than that of the main energy absorbing layer 130, so as to ensure that the composite protection plate has enough deformation energy absorbing space.
Further, the material of the first layer 131 is one of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material. The third layer 133 is one of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material, and ultra-high molecular weight polyethylene fiber reinforced composite material.
Of course, the first layer 131 and the third layer 133 may be made of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material, or ultra-high molecular weight polyethylene fiber reinforced composite material.
Preferably, the materials of the first layer 131 and the third layer 133 are both selected from metal alloys, especially aluminum alloys. The thickness of the first layer 131 and the third layer 133 is 1mm to reduce the mass of the primary energy absorbing layer 130 and to secure the deformation resistance of the primary energy absorbing layer 130.
Further, the material of the second layer 132 is one of carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material, and ultra-high molecular weight polyethylene fiber reinforced composite material. The material is light, and the toughening energy absorption performance is good.
Alternatively, the material of the second layer 132 may be at least two of carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material, ultra-high molecular weight polyethylene fiber reinforced composite material, or fiber mixed woven material. Specifically, the second layer 132 is made of a glass fiber reinforced polypropylene resin composite material and a polypropylene fiber reinforced polypropylene resin self-reinforced material. The two materials of the second layer 132 are combined in an alternating manner, and the alternating layering of the two materials is performed in an orthogonal layering manner by respectively selecting layering angles of 0 DEG and 90 deg.
Optionally, the thickness of the second layer 132 is 3mm.
Further, a surface protection layer 140 is disposed on a side of the first layer 131 away from the second layer 132, and the surface protection layer 140 is made of one of paint, plastic, rubber and composite material, and is mainly used for protecting the surface of the first layer 131, so as to prevent foreign matters from scratching the surface of the first layer 131 and affecting the protection effect. The thickness of the surface protective layer 140 may be selected to be 0.5mm.
Optionally, the material of the supporting layer 110 is one or more of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material, and ultra-high molecular weight polyethylene fiber reinforced composite material.
Alternatively, the supporting layer 110 may be made of one material, and the material of the supporting layer 110 may be identical to that of the second layer 132, and may be made of a glass fiber reinforced polypropylene resin composite material and a polypropylene fiber reinforced polypropylene resin self-reinforced material. In addition, the thickness of the support layer 110 may be selected to be 3mm. The support layer 110 is arranged, so that the surface of the protected piece has certain toughening and energy absorbing properties, and the deformation of the main energy absorbing layer 130 is prevented from damaging the protected piece.
Alternatively, the support layer 110 may also be composed of at least two materials having different flexural moduli. For example, the support layer 110 includes two composite materials, glass fiber composite material and aluminum alloy.
Optionally, the buffer layer 120 is one of polyethylene foam, polypropylene foam, polyvinyl chloride foam, polyethylene terephthalate foam, polyurethane foam, polyimide foam, metal foam, polypropylene honeycomb, and aluminum honeycomb. Specifically, the buffer layer 120 may be an aluminum alloy honeycomb plate, the honeycomb Kong Xuan is a hexagonal hole, the diameter of the hexagon circumscribing the honeycomb hole is 8mm, and the wall thickness of the honeycomb plate is 0.3mm. The thickness of the buffer layer 120 may be selected to be 6mm. The impact resistance is strong.
Alternatively, the buffer layer 120 may be made of a composite of a plurality of materials selected from polyethylene foam, polypropylene foam, polyvinyl chloride foam, polyethylene terephthalate foam, polyurethane foam, polyimide foam, metal foam, polypropylene honeycomb, and aluminum honeycomb. In particular with the actual protection design requirements.
In particular to a composite mode of the composite protection plate. Optionally, adjacent layer structures of the composite shield according to the utility model are bonded together by fusion bonding and/or by adding bonding material. For example, the adjacent layers of the composite protection plate are bonded by adhesive films, and the composite protection plate forms a whole under certain temperature and pressure conditions. Optionally, the thickness of the adhesive film between the adjacent layers of the composite protection plate is 0.1mm to 0.2mm, and the overall thickness of the composite protection plate is reduced under the condition of ensuring the bonding strength.
Furthermore, according to the composite shield plate of the present utility model, when tested using the sandwich-structured roller peel strength test method of national standard GB/T1457-2005, the roller peel strength between adjacent layers (particularly, between the first layer 131, the second layer 132 and the third layer 133) should be greater than 10 (n·mm)/mm, so that the connection between the adjacent layers of the composite shield plate is sufficiently stable.
The utility model also provides a vehicle comprising a battery pack 100 and a composite protection plate according to the foregoing. Referring to fig. 2, a side of the support layer 110 remote from the buffer layer 120 is connected to the battery pack 100 and covers the protection region 101 of the battery pack 100. According to the vehicle disclosed by the utility model, the protection effect on the battery pack 100 is improved, and the composite protection plate is adopted, so that the quality of the whole vehicle is reduced, and the endurance mileage of the vehicle is prolonged.
Unless defined otherwise, 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 pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.
The present utility model has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed.
Claims (10)
1. A composite shield, comprising:
a support layer for connection to a protected piece;
a buffer layer connected to the support layer; and
the main energy absorption layer comprises a first layer, a second layer and a third layer, wherein the third layer is connected to the buffer layer, the second layer is arranged between the first layer and the third layer, and the flexural modulus of the second layer does not exceed the flexural modulus of the first layer and the flexural modulus of the third layer.
2. The composite protection plate according to claim 1, wherein the material of the first layer is one or more of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material, ultra-high molecular weight polyethylene fiber reinforced composite material; and/or
The third layer is made of one or more of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material.
3. The composite protection plate according to claim 1, wherein the material of the second layer is one or more of carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material.
4. The composite shield of claim 1, wherein the flexural modulus of the first layer and the third layer are uniform.
5. The composite shield of any one of claims 1-4, wherein the thickness of the primary energy absorbing layer is no less than the thickness of the support layer, and the overall thickness of the composite shield is from 2mm to 20mm.
6. The composite shield of claim 1 wherein the support layer is comprised of a material; or alternatively
The supporting layer is formed by compounding at least two materials with different flexural modulus.
7. The composite protection plate according to claim 1, wherein the material of the supporting layer is one or more of aluminum, magnesium, titanium, steel, metal alloy, carbon fiber composite material, aramid fiber composite material, glass fiber composite material, polypropylene fiber reinforced polypropylene resin self-reinforced material and ultra-high molecular weight polyethylene fiber reinforced composite material.
8. The composite protection plate according to claim 1, wherein the buffer layer is one or more of polyethylene foam material, polypropylene foam material, polyvinyl chloride foam material, polyethylene terephthalate foam, polyurethane foam, polyimide foam, metal foam, polypropylene honeycomb, aluminum honeycomb material.
9. The composite protection plate according to claim 1, wherein a surface protection layer is arranged on one side of the first layer away from the second layer, and the surface protection layer is at least one of paint, plastic, rubber and composite material.
10. A vehicle, characterized by comprising:
a battery pack; and
the composite protection plate according to any one of claims 1 to 9, a side of the support layer remote from the buffer layer being connected to the battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321034660.2U CN219838280U (en) | 2023-04-28 | 2023-04-28 | Vehicle and composite fender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321034660.2U CN219838280U (en) | 2023-04-28 | 2023-04-28 | Vehicle and composite fender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219838280U true CN219838280U (en) | 2023-10-17 |
Family
ID=88299743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321034660.2U Active CN219838280U (en) | 2023-04-28 | 2023-04-28 | Vehicle and composite fender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219838280U (en) |
-
2023
- 2023-04-28 CN CN202321034660.2U patent/CN219838280U/en active Active
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