Luggage compartment side decoration plate and automobile
By adopting PET double-layer structure and specific groove design in the side trim of the car trunk, combined with arc surface and draft slope optimization, the problem of side trim prone to cracking during deep drawing forming is solved, achieving higher quality products and larger suitcase space.
Patent Information
- Application Number
- CN202421594377.X
- 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
The side trim of the car suitcase is easily pulled and broken during the deep drawing forming process, resulting in material breakage and poor product quality.
The side trim body is composed of PET bottom felt layer and carpet surface layer, and the first groove and the second groove are designed to form steps to slow down the stretching distance of the material. Combined with the arc surface design, draft slope setting and cast rounded corners, the tensile resistance of the material is optimized.
While increasing the space of the suitcase, it effectively prevents the material from rupturing during deep stretching, improves the reliability and durability of the product, and reduces manufacturing difficulty and cost.
Smart Images

Figure CN222780371U_ABST
Abstract
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] In the related art, some car trunks will stretch the side trim structure to form a groove, which can increase the space of the trunk. In order to further increase the trunk space, the side trim structure will be deep stretched (referring to a stretching distance greater than 200mm) to form a deeper groove. However, due to the characteristics and process problems of the current side trim structure materials, the material is easily torn during the deep drawing process. Utility Model Content
[0004] In order to help ensure that the material is not easily torn during the deep drawing process, the present application provides a luggage compartment side trim and a car.
[0005] The luggage compartment side trim provided in this application adopts the following technical solution:
[0006] A luggage compartment side trim panel comprises a side trim panel body, wherein the side trim panel body comprises a PET base felt layer and a carpet surface layer, wherein the PET base felt layer is arranged on the outside of the side trim panel body, and the carpet surface layer is arranged on the inside of the side trim panel body, and the side trim panel body is stretched outward to form a first groove and a second groove, wherein the groove depth of the first groove is less than the groove depth of the second groove.
[0007] By adopting the above technical scheme, the PET material has a higher tensile strength. During stretching molding, a first groove can be formed first, and then a second groove can be formed. A step is formed at the first groove. The step is used to act as a buffer to slow down the stretching distance of the material, ensuring that the material is not easily torn during the molding process, so as to form a side trim panel of better quality.
[0008] Optionally, the first groove has a depth of 50 cm-100 cm.
[0009] By adopting the above technical solution and limiting the groove depth of the first groove, it can be ensured that while the luggage compartment space is increased, the material will not be damaged due to excessive stretching.
[0010] Optionally, the side wall of the first groove is provided with a first arc surface and a second arc surface connected to each other, the first arc surface is arranged close to the center of the side trim body, the second arc surface is arranged away from the center of the side trim body, and the arc radius of the second arc surface is 20cm-40cm.
[0011] By adopting the above technical solution, this arc surface design can reduce stress concentration during the stretching process and improve the tensile resistance of the material.
[0012] Optionally, a third arc surface is provided on the side of the second groove away from the center of the side trim body, the arc radius of the third arc surface is 20cm-40cm, and the first arc surface extends to the side of the second groove close to the center of the side trim body.
[0013] By adopting the above technical solution and setting the third arc surface, the structure of the second groove can be further optimized and the overall stretching effect can be improved.
[0014] Optionally, the draft angles of the second arc surface and the third arc surface are greater than or equal to 7°.
[0015] 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.
[0016] Optionally, a casting fillet is provided between the groove wall of the first groove and the groove bottom of the first groove, and between the groove wall of the second groove and the groove bottom of the second groove, and the casting fillet is 5mm-7mm.
[0017] By adopting the above technical solution, the setting of the casting fillet can reduce the stress concentration during the stretching process and prevent the material from breaking at the fillet.
[0018] 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 second groove.
[0019] By adopting the above technical solution, the sound-absorbing cotton can effectively absorb the noise generated inside the luggage compartment and improve driving comfort.
[0020] Optionally, an ambient light installation opening is provided above the side trim body.
[0021] By adopting the above technical solution, the setting of the ambient light installation opening allows the interior of the suitcase to be equipped with an ambient light according to user needs, thereby improving the aesthetics and practicality of the suitcase.
[0022] A car comprises the luggage compartment side trim panel mentioned above.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. Since the present invention adopts a side trim body composed of a PET bottom felt layer and a felt surface layer, and through specially designed first grooves and second grooves, it is possible to increase the luggage compartment space while preventing the material from breaking during the deep drawing process, thereby improving the reliability and durability of the product.
[0025] 2. In the present invention, structural features such as arc surface design, draft angle setting and casting fillet are preferably adopted. Consideration of these details makes the stress distribution of the side trim more uniform during the stretching forming process, further reduces the risk of material rupture, and is also beneficial to the demolding and subsequent processing of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is an inner side perspective view of the overall structure of the present invention.
[0027] Figure 2 It is a schematic diagram of the layer structure of the side trim body of the present invention.
[0028] Figure 3 It is an outside perspective view of the overall structure of the present invention.
[0029] Description of reference numerals:
[0030] 10. Side trim body; 11. PET bottom felt layer; 12. Carpet surface layer; 20. First groove; 21. First arc surface; 22. Second arc surface; 30. Second groove; 31. Third arc surface; 40. Cast fillet; 50. Sound-absorbing cotton; 60. Ambient light installation port. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-3 This application is described in further detail.
[0032] Example 1
[0033] The luggage compartment side trim provided in the embodiment of the present application is as follows: Figure 1 and Figure 2 As shown, it includes a side trim body 10. The side trim body 10 is specially designed with a PET base felt layer 11 and a carpet surface layer 12. Among these two layers of materials, the PET base 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. The outside here refers to the direction toward the car sheet metal, and the inside is the opposite. This double-layer structure design not only enhances the structural strength of the side trim body 10, but also improves its sound insulation and heat insulation performance. Specifically, the carpet surface layer 12 can be a needle-punched carpet surface, which further plays a role in beautifying the appearance.
[0034] In order to further increase the effective space of the luggage box, the side trim body 10 is stretched outward to form a first groove 20 and a second groove 30 with different depths. In particular, the groove depth of the first groove 20 is designed to be smaller than the groove depth of the second groove 30. Such a design forms a step at the first groove 20, which acts as a buffer to reduce the stretching distance of the material, ensuring that the material is not easily torn during the molding process, so as to form a side trim with better quality, while also ensuring the increase of the luggage box space.
[0035] Specifically, the groove depth of the first groove 20 is controlled within the range of 50 cm to 100 cm, where the groove depth refers to the stretching distance of the first groove 20 and the second groove 30. The selection of this depth is based on an in-depth understanding of the tensile properties of the material and the results of multiple experimental verifications, ensuring that the integrity of the material is not compromised while increasing the space. The second groove 30, due to its greater groove depth, provides additional space for the suitcase, and the design of its groove depth also fully considers the tensile limit and structural stability of the material. In a preferred embodiment, the groove depth of the first groove 20 is 100 cm, and the groove depth of the second groove 30 is 210 cm.
[0036] Furthermore, the side wall of the first groove 20 includes a first arc surface 21 and a second arc surface 22 connected to each other. The first arc surface 21 is closer to the center of the side trim body 10 than the second arc surface 22, and the arc radius of the second arc surface 22 is precisely controlled within a range of 20 cm to 40 cm. This layout and design enables stress to be more evenly distributed during the stretching process, reducing the possibility of stress concentration, aiming to ensure that the structural strength of the material is not damaged while achieving an ideal stretching effect.
[0037] In addition, a third arc surface 31 is provided on the side of the second groove 30 away from the center of the side trim body 10, and the first arc surface 21 is extended to the side of the second groove 30 close to the center of the side trim body 10. This design realizes a smooth and continuous transition between the two grooves. This design not only improves the overall aesthetics, but also helps to reduce stress concentration areas and improve product durability.
[0038] In order to further improve the production efficiency and demoulding convenience of the product, the draft angles of the second arc surface 22 and the third arc surface 31 are designed to be greater than or equal to 7°. This selection of the slope ensures that the decorative panel can be demoulded smoothly after stretching and reduces the difficulty and cost of the production process.
[0039] In terms of details, cast fillets 40 are arranged between the groove wall of the first groove 20 and the groove bottom of the first groove 20 and between the groove wall of the second groove 30 and the groove bottom of the second groove 30. The sizes of these cast fillets 40 are precisely controlled within the range of 5 mm to 7 mm, aiming to reduce stress concentration during the stretching process and prevent the material from cracking at the fillets.
[0040] Example 2
[0041] Based on Example 1, the present application example also adds some functional design elements. Figure 1 and Figure 3 A sound-absorbing cotton 50 is added on the outside of the side trim body 10 and on the outside of the bottom of the second groove 30. This sound-absorbing cotton 50 can effectively absorb the noise generated inside the luggage box, providing a quieter and more comfortable riding environment for the driver and passengers.
[0042] In addition, an atmosphere light installation opening 60 is cleverly designed above the side trim body 10. This design allows the user to install an atmosphere light inside the luggage box according to personal preference, which not only improves the aesthetics of the luggage box, but also increases its practicality and personalization.
[0043] Finally, it is worth mentioning that the first groove 20 and the second groove 30 are both arranged along the height direction of the side trim body 10. This layout maximizes the use of the space of the side trim body 10 and effectively improves the volume of the luggage compartment.
[0044] In summary, the careful design of the luggage compartment side trim provided by the embodiment of the present application not only significantly increases the effective space of the luggage compartment, but also improves the reliability, durability and user experience of the product by optimizing the structure and introducing functional elements. These innovations together constitute the core technical contribution and market competitiveness of the present application.
[0045] The present application also provides a car, comprising the luggage compartment side trim as described above in Embodiments 1 and 2. By installing the luggage compartment side trim with an innovative design, the car effectively improves the luggage compartment space while ensuring structural integrity and aesthetics. This not only meets consumers' demand for larger storage space, but also improves the comfort and market competitiveness of the entire vehicle by enhancing structural stability and introducing functional designs such as sound absorption and aesthetics.
[0046] 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 base felt layer (11) and a carpet surface layer (12), wherein the PET base 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 first groove (20) and a second groove (30), wherein the groove depth of the first groove (20) is smaller than the groove depth of the second groove (30).
2. The luggage compartment side trim according to claim 1, characterized in that: The first groove (20) has a groove depth of 50 cm-100 cm.
3. The luggage compartment side trim according to claim 1, characterized in that: The side wall of the first groove (20) is provided with a first arc surface (21) and a second arc surface (22) connected to each other, the first arc surface (21) being arranged close to the center of the side trim body (10), and the second arc surface (22) being arranged away from the center of the side trim body (10), and the arc radius of the second arc surface (22) being 20 cm-40 cm.
4. The luggage compartment side trim according to claim 3, characterized in that: A third arc surface (31) is provided on a side of the second groove (30) away from the center of the side trim body (10); the arc radius of the third arc surface (31) is 20 cm-40 cm; and the first arc surface (21) extends to a side of the second groove (30) close to the center of the side trim body (10).
5. The luggage compartment side trim according to claim 4, characterized in that: The draft angles of the second arc surface (22) and the third arc surface (31) are greater than or equal to 7°.
6. The luggage compartment side trim according to claim 4, characterized in that: A casting fillet (40) is provided between the groove wall of the first groove (20) and the groove bottom of the first groove (20), and between the groove wall of the second groove (30) and the groove bottom of the second groove (30), and the casting fillet (40) is 5 mm to 7 mm.
7. The luggage compartment side trim according to claim 1, characterized in that: Sound-absorbing cotton (50) is provided on the outside of the side trim body (10) and on the outside of the bottom of the second groove (30).
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.