Luggage compartment side decoration plate and automobile

By adopting a material design combining PET base felt layer and carpet surface layer, combined with specific arc surface and draft slope design, the problem of easy pulling and breaking of the car luggage compartment side trim material when deeply stretched is solved, achieving higher quality molding and better performance.

CN222780370UActive Publication Date: 2025-04-22SHANGHAI HOWIN AUTOMOTIVE COMPONENTS CO LTD
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Patent Information

Application Number
CN202421591070.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-05
Publication Date
2025-04-22
Estimated Expiration
2034-07-05

AI Technical Summary

Technical Problem

The existing car luggage compartment side trim material is easily pulled out when deeply stretched to form deep grooves, and the material has a large weight and poor odor, and there are safety hazards during processing.

Method used

The material design is adopted for combining the PET bottom felt layer and the carpet surface layer. The side trim body is stretched out to the outside to form a groove. The side wall of the groove is equipped with a connected first arc surface and a second arc surface. The arc radius of the second arc surface is set to 20cm-40cm, the draft slope is greater than or equal to 7°, and cast rounded corners and sound-absorbing cotton are provided at the bottom of the groove groove.

Benefits of technology

It improves the tensile strength and molding quality of the side trim panels, reduces the pull-out phenomenon, enhances the durability and impact resistance of the decorative panels, and reduces noise and improves the comfort of the car inside.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN222780370U_ABST
    Figure CN222780370U_ABST
Patent Text Reader

Abstract

The utility model discloses a luggage compartment side decoration plate and an automobile, the luggage compartment side decoration plate comprises a side decoration plate body, the side decoration plate body comprises a PET bottom felt layer and a carpet surface layer, the PET bottom felt layer is arranged on the outer side of the side decoration plate body, the carpet surface layer is arranged on the inner side of the side decoration plate body, the side decoration plate body is stretched outwards to form a groove, and the carpet surface layer is arranged in the groove. The side wall of the groove is provided with a first arc surface and a second arc surface which are connected with each other, the first arc surface is arranged close to the center of the side decoration plate body, the second arc surface is arranged far away from the center of the side decoration plate body, and the arc radius of the second arc surface is 20-40cm. Under the special design of the material and the process, the side decoration plate body is not prone to being pulled broken when the groove with the large stretching distance is formed, and therefore the side decoration plate with the good quality can be formed.
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Description

Technical Field

[0001] The present application relates to the technical field of automobile accessories, and in particular to a luggage compartment side trim and an automobile. Background Art

[0002] The trunk of a car is a space in a car for storing luggage, and is also commonly referred to as a trunk. Side trim structures are provided on both sides of the trunk, which can serve to isolate the car sheet metal and install structural parts.

[0003] At present, the structure of automobile side trim panels basically adopts panels made of three materials, namely PP double-covered cloth, cloth-covered semi-cured felt or hemp fiberboard, as the substrate of the luggage compartment side panel decorative panel. The main purpose of using the substrate prepared by these three materials is to reduce the weight of the luggage compartment side panel decorative panel, and at the same time achieve the soft touch of the luggage compartment through the cloth covering, thereby enhancing the exquisite perception of the whole vehicle; however, the decorative panels using cloth-covered semi-cured felt or hemp fiberboard as the substrate are relatively heavy, have poor odor, and the hemp fiberboard is easy to absorb moisture and deform; the decorative panels using PP double-covered cloth material as the substrate have poor rigidity and are easy to deform when pressed. If the strength of the decorative panels is to be increased, glass fiber needs to be added, and glass fiber is harmful to the human body during the production process.

[0004] With respect to the above-mentioned related technologies, when the side trim structure of the above-mentioned material is deep-drawn (referring to a drawing distance greater than 200 mm) to form a deeper groove, the material is easily torn during the forming process due to the characteristics of the material and process problems. Utility Model Content

[0005] In order to help ensure that the material is not torn during the molding process, the present application provides a luggage compartment side trim and a car.

[0006] The luggage compartment side trim provided in this application adopts the following technical solution:

[0007] A luggage compartment side trim, comprising a side trim body, the side trim body comprising a PET base felt layer and a carpet surface layer, the PET base felt layer being arranged on the outside of the side trim body, the carpet surface layer being arranged on the inside of the side trim body, the side trim body being stretched outward to form a groove, the side wall of the groove being provided with a first arc surface and a second arc surface connected to each other, the first arc surface being arranged close to the center of the side trim body, the second arc surface being arranged away from the center of the side trim body, wherein the arc radius of the second arc surface is 20 cm-40 cm.

[0008] By adopting the above technical scheme, the PET material has a higher tensile strength, and the arc radius of the second arc surface is set to 20cm-40cm. With the special design of both materials and processes, the side trim body is not easily torn when forming a groove with a larger stretching distance, thereby being able to form a side trim of better quality.

[0009] Optionally, the second arc surface includes a first side wall surface and a second side wall surface connected to each other, the first side wall surface is a side wall of the groove along the length direction, the second side wall surface is a side wall of the groove along the width direction, and the second side wall surface is located above the first side wall surface.

[0010] By adopting the above technical solution, the second arc surface can have a smoother transition and the stretching forming quality is improved.

[0011] Optionally, the draft angle of the second arc surface is greater than or equal to 7°.

[0012] By adopting the above technical solution, the quality of stretching forming can be further improved, the occurrence of tearing can be reduced, and it is helpful to more easily remove the product from the mold during the manufacturing process, reducing the manufacturing difficulty and cost.

[0013] Optionally, a casting fillet is provided between the second arc surface and the bottom of the groove, and the casting fillet is 5mm-7mm.

[0014] By adopting the above technical solution, stress concentration can be reduced and the durability and impact resistance of the product can be improved.

[0015] Optionally, sound-absorbing cotton is provided on the outer side of the side trim body and on the outer side of the bottom of the groove.

[0016] By adopting the above technical solution, the outer side of the groove bottom is in contact with the car sheet metal. During the operation of the car, vibration and noise are likely to occur here. The sound-absorbing cotton helps to reduce noise and improve the comfort inside the car.

[0017] Optionally, a support block is provided on the back side of the first arc surface.

[0018] By adopting the above technical solution as the support point for connection with the automobile sheet metal, the structural strength is improved.

[0019] Optionally, the support block is made of EPP.

[0020] By adopting the above technical solution, EPP (expanded polypropylene), a lightweight and highly elastic material, is used to reduce weight and provide good cushioning performance.

[0021] Optionally, an ambient light installation opening is provided above the side trim body.

[0022] By adopting the above technical solution, the atmosphere light can be installed conveniently.

[0023] A car comprises the luggage compartment side trim panel mentioned above.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. PET material has high tensile strength, and the arc radius of the second arc surface is set to 20cm-40cm. With the special design of both materials and processes, the side trim body is not easily torn when forming a groove with a large stretching distance, thereby being able to form a side trim with better quality.

[0026] 2. A draft angle greater than or equal to 7° can further improve the quality of stretch forming, reduce the occurrence of tearing, and help to more easily remove the product from the mold during the manufacturing process, reducing manufacturing difficulty and cost.

[0027] 3. In the present invention, a material combining a PET bottom felt layer and a carpet surface layer is preferably used. Since the PET bottom felt layer has good wear resistance and scratch resistance, and the carpet surface layer provides a soft and comfortable touch, the stability and durability of the decorative board during use are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an inner side perspective view of the overall structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the layer structure of the side trim body of the present invention.

[0030] Figure 3 It is an outside perspective view of the overall structure of the present invention.

[0031] Description of reference numerals:

[0032] 10. Side trim body; 11. PET bottom felt layer; 12. Carpet surface layer; 20. Groove; 21. First arc surface; 22. Second arc surface; 221. First side wall surface; 222. Second side wall surface; 30. Cast fillet; 40. Sound-absorbing cotton; 50. Support block; 51. PE foam block; 60. Ambient light installation port. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] Reference Figure 1 and Figure 2, the embodiment of the present application discloses a luggage compartment side trim. It includes a side trim body 10, and the side trim body 10 is specially designed with two parts: a PET base felt layer 11 and a carpet surface layer 12. Here, the PET base felt layer 11 is arranged on the outside of the side trim body 10, and the PET base felt layer 11 is connected to the automobile sheet metal. Such a design can make full use of the wear-resistant and scratch-resistant properties of the PET base felt layer 11, providing a longer service life for the decorative panel. The carpet surface layer 12 is arranged on the inner side of the side trim body 10, providing a soft and comfortable touch for the contactor. Specifically, the carpet surface layer 12 can be a needle-punched carpet surface, and the needle-punched carpet surface can also play a role in beautifying the appearance.

[0035] It is worth noting that the side trim body 10 is stretched outward to form a groove 20, where the outside is in the direction of the car sheet metal. This groove 20 is not a simple planar structure, and its side wall is specially designed with a first arc surface 21 and a second arc surface 22 connected. Among them, the first arc surface 21 is closer to the center of the side trim body 10, while the second arc surface 22 is relatively far away. Such a design not only increases the three-dimensional sense of the decorative panel, but also facilitates demolding during the manufacturing process. In particular, the second arc surface 22, the arc radius of which is controlled between 20cm and 40cm, is matched with the PET material of the side trim body 10. Under the double-layer combination of its process and material, the side trim body 10 is not easily torn when forming a groove 20 with a larger stretching distance, thereby being able to form a side trim of better quality.

[0036] Specifically, the structure of the second arc surface 22 further includes a first side wall surface 221 and a second side wall surface 222 connected to each other. The first side wall surface 221 is a side wall of the groove 20 along the length direction, and the second side wall surface 222 is a side wall of the groove 20 along the width direction. The first side wall surface 221 and the second side wall surface 222 have a smooth transition. Such a layout allows the second side wall surface 222 to be naturally located above the first side wall surface 221, thereby forming a groove 20 structure with a specific angle and direction, which can increase the space of the luggage compartment and is easier to stretch when forming the groove 20 structure.

[0037] In order to further improve the quality of stretch forming and reduce the phenomenon of tearing, the draft angle of the second arc surface 22 is greater than or equal to 7°. In a preferred embodiment, the draft angle of the second arc surface 22 is equal to 7°, and the arc radius of the second arc surface 22 is 40 cm. This design can effectively reduce the occurrence of forming tearing. As for the arc radius and draft angle of the first arc surface 21, the design can be adapted according to the second arc surface 22.

[0038] In order to further improve the practicality of the decorative plate, a casting fillet 30 is provided between the second arc surface 22 and the bottom of the groove 20. The size of the casting fillet 30 is precisely controlled between 5 mm and 7 mm, which can prevent stress concentration and maintain the overall beauty of the decorative plate.

[0039] Reference Figure 3 In addition, a sound-absorbing cotton 40 is specially provided on the outside of the side trim body 10 and on the outside of the bottom of the groove 20. The sound-absorbing cotton 40 is in contact with the car sheet metal, which helps to reduce noise and improve the comfort of the car interior.

[0040] Reference Figure 1 and Figure 3 , wherein a support block 50 is provided on the back side of the first arc surface 21, and the material of the support block 50 is EPP (expanded polypropylene). The support block 50 can abut against the automobile sheet metal, which mainly improves the installation stability of the side trim body 10. In one embodiment, the back side of the first arc surface 21 and the support block 50 are in a bonding relationship to achieve rapid installation of the support block 50. In addition, a PE foam block 51 is also bonded to the outer side of the side trim body 10, and the PE foam block 51 can abut against the automobile sheet metal to play a supporting and filling role.

[0041] Finally, an atmosphere light installation opening 60 is provided on the upper side of the side trim body 10, and an atmosphere light can be installed at the atmosphere light installation opening 60, and the atmosphere light plays a lighting role. The design of the atmosphere light installation opening 60 allows for convenient installation of the atmosphere light.

[0042] The implementation principle of a luggage compartment side trim panel in an embodiment of the present application is as follows: the PET material has a high tensile strength, and the arc radius of the second arc surface 22 is set to 20cm-40cm. With the special design of both materials and processes, the side trim panel body 10 is not easily torn when forming a groove 20 with a large stretching distance, thereby being able to form a side trim panel of better quality.

[0043] An embodiment of the present application also discloses a car, which includes the above-mentioned luggage compartment side trim, and the luggage compartment side trim is detachably connected to the sheet metal of the car through fasteners.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A luggage compartment side trim, characterized in that: The side trim body (10) comprises a PET bottom felt layer (11) and a carpet surface layer (12), wherein the PET bottom felt layer (11) is arranged on the outside of the side trim body (10), and the carpet surface layer (12) is arranged on the inside of the side trim body (10), and the side trim body (10) is stretched outward to form a groove (20), and the side wall of the groove (20) is provided with a first arc surface (21) and a second arc surface (22) connected to each other, wherein the first arc surface (21) is arranged close to the center of the side trim body (10), and the second arc surface (22) is arranged away from the center of the side trim body (10), wherein the arc radius of the second arc surface (22) is 20 cm-40 cm.

2. The luggage compartment side trim according to claim 1, characterized in that: The second arc surface (22) comprises a first side wall surface (221) and a second side wall surface (222) which are connected to each other; the first side wall surface (221) is a side wall of the groove (20) along the length direction; the second side wall surface (222) is a side wall of the groove (20) along the width direction; and the second side wall surface (222) is located above the first side wall surface (221).

3. The luggage compartment side trim according to claim 1, characterized in that: The draft angle of the second arc surface (22) is greater than or equal to 7°.

4. The luggage compartment side trim according to claim 1, characterized in that: A casting fillet (30) is provided between the second arc surface (22) and the bottom of the groove (20), and the casting fillet (30) is 5 mm to 7 mm.

5. The luggage compartment side trim according to claim 1, characterized in that: Sound-absorbing cotton (40) is provided on the outside of the side trim body (10) and on the outside of the bottom of the groove (20).

6. The luggage compartment side trim according to claim 1, characterized in that: A support block (50) is provided on the back side of the first arc surface (21).

7. The luggage compartment side trim according to claim 6, characterized in that: The support block (50) is made of EPP.

8. The luggage compartment side trim according to claim 1, characterized in that: An ambient light installation opening (60) is provided above the side trim body (10).

9. A car, characterized in that: It comprises the luggage compartment side trim panel as described in any one of claims 1-8.