Wheel cover and vehicle

Abstract

This application provides a wheel cover and a vehicle. The wheel cover includes a wheel cover body, which comprises a felt surface layer, a felt core layer, and a felt bottom layer. The felt core layer is located between the felt surface layer and the felt bottom layer. The wheel cover body also includes a first PP particle layer and a second PP particle layer. Both the first and second PP particle layers are made of PP particles. The first PP particle layer is located between the felt surface layer and the felt core layer, and the second PP particle layer is located between the felt core layer and the felt bottom layer. The wheel cover of this application has high strength after wading.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a wheel cover and a vehicle. Background Technology

[0002] In related technologies, molded wheel covers are used in new energy vehicles to improve NVH performance (Noise, Vibration, Harshness performance). However, after wading through water, the strength of the molded wheel covers is greatly reduced, leading to problems such as collapse and deformation, which affects the customer's user experience. Utility Model Content

[0003] This application provides a wheel cover and vehicle with high strength after wading.

[0004] The technical solution of this application embodiment is implemented as follows:

[0005] The first aspect of this application provides a wheel cover, including:

[0006] The wheel cover body includes a felt surface layer, a felt body layer, and a felt bottom layer. The felt body layer is located between the felt surface layer and the felt bottom layer. The wheel cover body also includes a first PP particle layer and a second PP particle layer. The material of the first PP particle layer and the second PP particle layer is PP particles. The first PP particle layer is located between the felt surface layer and the felt body layer, and the second PP particle layer is located between the felt body layer and the felt bottom layer.

[0007] In one embodiment, the felt surface layer is a PET+PP mixed fiber layer.

[0008] In one embodiment, the PET+PP mixed fiber layer includes PET fibers and PP fibers;

[0009] The fineness of the PET fibers is greater than or equal to 2D and less than or equal to 3D; and / or,

[0010] The fineness of the PP fiber is greater than or equal to 3.9D and less than or equal to 4.9D.

[0011] In one embodiment, the felt bottom layer is a PET+PE nonwoven film layer or a PET+PA nonwoven film layer.

[0012] In one embodiment, the felt bottom layer is a PET+PE nonwoven fabric film layer, which includes PET fibers and PE fibers.

[0013] The fineness of the PET fibers is greater than or equal to 2D and less than or equal to 3D; and / or,

[0014] The fineness of the PE fiber is greater than or equal to 3.9D and less than or equal to 4.9D.

[0015] In one embodiment, the felt body layer is a PET nonwoven fabric layer.

[0016] In one embodiment, the PET nonwoven layer comprises PET fibers with a fineness greater than or equal to 5.5D and less than or equal to 6.5D.

[0017] In one embodiment, the size of the PP particles in the first PP particle layer is greater than or equal to 0.4 mm and less than or equal to 0.5 mm; and / or,

[0018] The size of the PP particles in the second PP particle layer is greater than or equal to 0.4 mm and less than or equal to 0.5 mm; and / or,

[0019] The felt surface layer, the first PP particle layer, the felt body layer, the second PP particle layer, and the felt bottom layer are formed by molding process.

[0020] In one embodiment, the felt surface layer, the felt body layer, and the felt bottom layer all comprise PET fibers, and the fineness of the PET fibers in the felt body layer is greater than that of the PET fibers in the felt surface layer and the felt bottom layer.

[0021] A second aspect of this application provides a vehicle that includes any of the wheel covers described above.

[0022] The embodiments of this application have the following beneficial effects:

[0023] This application provides a wheel cover and a vehicle. The wheel cover body includes a felt surface layer, a felt body layer, and a felt bottom layer, with the felt body layer located between the felt surface layer and the felt bottom layer. The wheel cover body also includes a first PP particle layer and a second PP particle layer, both made of PP particles. The first PP particle layer is located between the felt surface layer and the felt body layer, and the second PP particle layer is located between the felt body layer and the felt bottom layer. The PP particle layer has good mechanical strength, significantly improving the wheel cover's impact resistance and rigidity. Furthermore, due to the poor water absorption of PP particles, the first and second PP particle layers do not suffer significant strength loss after the wheel cover has been submerged in water, thus maintaining high strength and reducing the risk of collapse and deformation. Simultaneously, by adding PP particle layers between the felt material layers, the PP particle layers provide a certain degree of water resistance within the wheel cover, reducing the water absorption of the felt body layer and thus improving the overall waterproof performance of the wheel cover. Attached Figure Description

[0024] Figure 1 This is a partial structural schematic diagram of a wheel cover provided in one embodiment of this application;

[0025] Figure 2 for Figure 1 A schematic diagram of the material layers of the main body of the central wheel cover.

[0026] Explanation of reference numerals in the attached figures

[0027] 10. Wheel cover body; 11. Felt surface layer; 12. Felt body layer; 13. Felt bottom layer; 14. First PP particle layer; 15. Second PP particle layer. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0030] Unless otherwise defined, all technical and scientific terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the embodiments of this application is for the purpose of describing the embodiments of this application only and is not intended to limit this application.

[0031] One embodiment of this application provides a wheel cover; please refer to [link / reference]. Figure 1 The wheel cover includes the wheel cover body 10.

[0032] Please see Figure 2 The wheel arch body 10 includes a felt surface layer 11, a felt body layer 12, and a felt bottom layer 13. The felt body layer 12 is located between the felt surface layer 11 and the felt bottom layer 13. The wheel arch body 10 also includes a first PP particle layer 14 (first polypropylene particle layer; i.e., first polypropylene particle layer) and a second PP particle layer 15 (second polypropylene particle layer; i.e., second polypropylene particle layer). The material of the first PP particle layer 14 and the second PP particle layer 15 is PP particles (PP particles: polypropylene particles; i.e., polypropylene particles). The first PP particle layer 14 is located between the felt surface layer 11 and the felt body layer 12, and the second PP particle layer 15 is located between the felt body layer 12 and the felt bottom layer 13.

[0033] Specifically, the wheel cover body 10 is the main structural part of the wheel cover, the felt surface layer 11 is the felt material layer of the wheel cover body 10 close to the tire, and the felt bottom layer 13 is the felt material layer of the wheel cover body 10 away from the tire.

[0034] The felt surface layer 11, the felt body layer 12, and the felt bottom layer 13 are all made of felt material. They can be made of the same felt material or different felt materials. Furthermore, they can be made of a single felt material or a composite felt material.

[0035] For example, at least one of the felt surface layer 11, the felt body layer 12, and the felt bottom layer 13 includes PET fibers (PET fibers: polyethylene glycol terephthalate fibers). By incorporating PET fibers into at least one of the felt surface layer 11, the felt body layer 12, and the felt bottom layer 13, the PET fibers can improve the strength, abrasion resistance, and corrosion resistance of the material layer, thereby making the wheel cover body 10 stronger and more abrasion-resistant and corrosion-resistant. Specifically, only the felt surface layer 11 may include PET fibers, only the felt body layer 12 may include PET fibers, only the felt bottom layer 13 may include PET fibers, any two of the three may include PET fibers, or all three may include PET fibers. This can be determined according to the actual situation.

[0036] The first PP particle layer 14 and the second PP particle layer 15 are both made of PP particles. They can be made of PP particles of the same size or different sizes. Their specific dimensions can be set according to the actual situation.

[0037] For example, the size of the PP particles in the first PP particle layer 14 is greater than or equal to 0.4 mm and less than or equal to 0.5 mm. Controlling the size of the PP particles in the first PP particle layer 14 within the above range can effectively improve the strength of the first PP particle layer 14, and at the same time make the first PP particle layer 14 denser, thus providing better waterproof performance. For example, the size of the PP particles in the first PP particle layer 14 is 0.4 mm, 0.45 mm, or 0.5 mm.

[0038] For example, the size of the PP particles in the second PP particle layer 15 is greater than or equal to 0.4 mm and less than or equal to 0.5 mm. Controlling the size of the PP particles in the second PP particle layer 15 within this range can effectively improve the strength of the second PP particle layer 15, and at the same time make the second PP particle layer 15 denser, thus providing better waterproof performance. For example, the size of the PP particles in the second PP particle layer 15 can be 0.4 mm, 0.45 mm, or 0.5 mm.

[0039] It should be noted that the specific molding process of the wheel cover body 10 can be determined according to the actual situation.

[0040] For example, the felt surface layer 11, the first PP granule layer 14, the felt body layer 12, the second PP granule layer 15, and the felt bottom layer 13 are formed using a molding process. This improves the efficiency of wheel cover forming and achieves higher forming precision.

[0041] Another embodiment of this application provides a vehicle that includes the wheel covers described in any embodiment of this application.

[0042] It should be noted that wheel covers can be applied to any type of vehicle, such as new energy vehicles and traditional gasoline vehicles.

[0043] In the wheel cover of this embodiment, the wheel cover body 10 includes a first PP particle layer 14 and a second PP particle layer 15. Both the first PP particle layer 14 and the second PP particle layer 15 are made of PP particles. The first PP particle layer 14 is located between the felt surface layer 11 and the felt body layer 12, and the second PP particle layer 15 is located between the felt body layer 12 and the felt bottom layer 13. The PP particle layer has good mechanical strength, which can greatly improve the impact resistance and rigidity of the wheel cover. Furthermore, because PP particles have poor water absorption, after the wheel cover is submerged in water, the first PP particle layer 14 and the second PP particle layer 15 will not have a significant impact on their strength due to water absorption. Therefore, the wheel cover can maintain high strength after submersion, reducing the problem of collapse and deformation after water exposure. Simultaneously, by adding PP particle layers between the felt material layers, the PP particle layers can provide a certain water-repellent effect inside the wheel cover, reducing the water absorption of the felt body layer 12, thus improving the overall waterproof effect of the wheel cover.

[0044] In one embodiment, the felt surface layer 11 is a PET+PP mixed fiber layer. That is, the felt surface layer 11 is a material layer formed by mixing PET fibers and PP fibers. PP fibers have good toughness and hydrolysis resistance. By adding PP fibers to PET fibers, the impact resistance and deformation resistance of the felt surface layer 11 can be improved, enhancing its density and inhibiting moisture penetration into the wheel cover body 10. This provides a good waterproof effect, preventing the wheel cover from pilling and collapsing after absorbing water, and minimizing the loss of normal strength and support function. Simultaneously, the PET+PP mixed fiber layer of the felt surface layer 11 provides both good protective performance and aesthetic appeal.

[0045] The felt surface layer 11 is made of a material layer formed by mixing PET fiber and PP fiber, and it works in conjunction with the first PP particle layer 14 and the second PP particle layer 15. This effectively isolates the felt body layer 12 from the splashing water, and can better prevent the wheel cover from structurally breaking due to long-term water absorption.

[0046] It should be noted that the specific material dimensions of PET and PP fibers in the PET+PP mixed fiber layer can be determined according to the actual situation.

[0047] For example, the PET+PP mixed fiber layer includes PET fibers and PP fibers, where the fineness of the PET fibers is greater than or equal to 2D and less than or equal to 3D. Controlling the fineness of the PET fibers within this range can enhance the density of the felt surface layer 11, thereby improving its impact resistance and deformation resistance. For example, the fineness of the PET fibers may be 2D, 2.5D, or 3D.

[0048] For example, the PET+PP mixed fiber layer includes PET fibers and PP fibers, where the fineness of the PP fibers is greater than or equal to 3.9D and less than or equal to 4.9D. Controlling the fineness of the PP fibers within the above range can enhance the density of the felt surface layer 11, thereby improving the impact resistance and deformation resistance of the felt surface layer 11, and further improving the waterproof effect of the felt surface layer 11.

[0049] In one embodiment, the felt bottom layer 13 is a PET+PE nonwoven fabric film layer. That is, the felt bottom layer 13 is a material layer formed by mixing PET fibers and PE fibers. Among them, PE fibers have the characteristics of high strength, low density, and corrosion resistance. By adding PE fibers to PET fibers, the impact resistance of the felt bottom layer 13 can be improved, and the weight of the felt bottom layer 13 can be reduced while maintaining strength. At the same time, by using PE fibers, the felt bottom layer 13 can have a better water vapor permeability blocking effect, which can improve the water-proof effect of the wheel cover.

[0050] In one embodiment, the felt bottom layer 13 is a PET+PA nonwoven fabric film layer. That is, the felt bottom layer 13 is a material layer formed by a mixture of PET fibers and PA fibers (PA fibers: Polyamide fibers). The PA fibers can withstand the impact of gravel and road bumps experienced by the wheel cover during driving, thus providing a certain degree of protection for the integrity of the wheel cover. At the same time, by using PA fibers, the felt bottom layer 13 has a good water vapor permeability blocking effect, which can improve the water-repellent effect of the wheel cover.

[0051] In one embodiment, the felt backing layer 13 is a PET+PE nonwoven fabric film layer, which includes PET fibers and PE fibers; the fineness of the PET fibers is greater than or equal to 2D and less than or equal to 3D. Controlling the fineness of the PET fibers within the above range can enhance the density of the felt backing layer 13, thereby improving its impact resistance and deformation resistance. For example, the fineness of the PET fibers is 2D, 2.5D, or 3D.

[0052] For example, the felt base layer 13 is a PET+PE nonwoven fabric film layer, which includes PET fibers and PE fibers; the fineness of the PE fibers is greater than or equal to 3.9D and less than or equal to 4.9D. Controlling the fineness of the PE fibers within the above range can enhance the density of the felt base layer 13, thereby improving the impact resistance and deformation resistance of the felt base layer 13, and further improving the water-repellent effect of the felt base layer 13.

[0053] In one embodiment, the felt body layer 12 is a PET nonwoven fabric layer. The PET nonwoven fabric layer includes PET fibers. Using PET fibers as the skeleton material of the felt body layer 12 can greatly improve the overall impact resistance and load-bearing capacity of the wheel cover, enabling the wheel cover to maintain a stable shape under complex road conditions.

[0054] It should be noted that the size of the PET fibers in the felt body layer 12 can be determined according to the actual situation.

[0055] For example, the PET nonwoven fabric layer includes PET fibers with a fineness greater than or equal to 5.5D and less than or equal to 6.5D. Therefore, controlling the fineness of the PET fibers within this range can further improve the overall impact resistance and load-bearing capacity of the wheel cover, while also enhancing its abrasion resistance. For example, the fineness of the PET fibers may be 5.5D, 6D, or 6.5D.

[0056] In one embodiment, the felt surface layer 11, the felt body layer 12, and the felt bottom layer 13 all include PET fibers, with the fineness of the PET fibers in the felt body layer 12 being greater than that in the felt surface layer 11 and the felt bottom layer 13. By using PET fibers with a finer fineness in the felt body layer 12, the overall strength of the wheel arch structure can be improved, significantly enhancing the overall impact resistance and load-bearing capacity of the wheel arch, allowing it to maintain a stable shape under complex road conditions.

[0057] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in a specific embodiment," or "exemplary," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A wheel cover, characterized in that, include: The wheel cover body includes a felt surface layer, a felt body layer, and a felt bottom layer. The felt body layer is located between the felt surface layer and the felt bottom layer. The wheel cover body also includes a first PP particle layer and a second PP particle layer. The material of the first PP particle layer and the second PP particle layer is PP particles. The first PP particle layer is located between the felt surface layer and the felt body layer, and the second PP particle layer is located between the felt body layer and the felt bottom layer.

2. The wheel cover of claim 1, wherein, The felt surface layer is a PET+PP mixed fiber layer.

3. The wheel cover of claim 2, wherein, The PET+PP hybrid fiber layer includes PET fibers and PP fibers; The fineness of the PET fibers is greater than or equal to 2D and less than or equal to 3D; and / or, The fineness of the PP fiber is greater than or equal to 3.9D and less than or equal to 4.9D.

4. A wheel cover according to any one of claims 1-3, characterized in that The felt bottom layer is a PET+PE nonwoven film layer or a PET+PA nonwoven film layer.

5. A wheel cover according to any one of claims 1-3, characterized in that The felt bottom layer is a PET+PE non-woven fabric film layer, which includes PET fibers and PE fibers. The fineness of the PET fibers is greater than or equal to 2D and less than or equal to 3D; and / or, The fineness of the PE fiber is greater than or equal to 3.9D and less than or equal to 4.9D.

6. The wheel cover of any one of claims 1-3, wherein, The felt body layer is a PET non-woven fabric layer.

7. The wheel cover of claim 6, wherein, The PET nonwoven fabric layer includes PET fibers, wherein the fineness of the PET fibers is greater than or equal to 5.5D and less than or equal to 6.5D.

8. The wheel cover of any one of claims 1-3, wherein, The size of the PP particles in the first PP particle layer is greater than or equal to 0.4 mm and less than or equal to 0.5 mm; and / or, The size of the PP particles in the second PP particle layer is greater than or equal to 0.4 mm and less than or equal to 0.5 mm; and / or, The felt surface layer, the first PP particle layer, the felt body layer, the second PP particle layer, and the felt bottom layer are formed by molding process.

9. The wheel cover of any one of claims 1-3, wherein, The felt surface layer, the felt body layer, and the felt bottom layer all include PET fibers, and the fineness of the PET fibers in the felt body layer is greater than that of the PET fibers in the felt surface layer and the felt bottom layer.

10. A vehicle characterized by comprising: The vehicle includes the wheel covers as described in any one of claims 1-9.

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