An automobile door trim panel

Abstract

The application discloses a kind of automobile door trim, belong to automobile parts technical field, including plate body and installation guide rail, the plate body is long strip structure piece, plate body includes the first side close to window glass and the second side away from window glass, the second side edge of plate body is bent inward and constitutes a assembly groove matched with automobile sheet metal, the bottom surface of the first side of plate body is provided with a convex rib, and the convex rib is inverted structure, the bottom surface of plate body is provided with a plurality of positioning columns for inserting automobile sheet metal, the bottom surface of plate body is provided with a plurality of mounting seats, the mounting seat is U-shaped structure and is projected on the bottom surface of plate body, and the mounting seat is provided with a buckle member, and the buckle member is fixed with automobile sheet metal after passing through installation guide rail.The plate body, installation guide rail and sheet metal are rigidly connected and synchronously fixed by the buckle member, and the assembly precision, structural stability and sealing reliability are effectively improved.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to an automotive door trim panel. Background Technology

[0002] As a visible component of the car door system, the door trim panel not only fulfills basic functions such as beautifying the vehicle body and concealing the internal structure, but also needs to be precisely assembled with multiple components such as weatherstripping, window glass, and sheet metal parts. With the deepening trend of lightweight and modular design in automobiles, structural optimization of the trim panel is of great significance for reducing the overall vehicle weight and improving assembly efficiency.

[0003] Currently, most car door trim panels are one-piece structures. During assembly, the sealing strips and glass guide channels, among other accessories, must be pre-installed into the panel's mounting slots before the panel is fixed to the door sheet metal. Because the trim panel itself obstructs the assembly area, the installation space for flexible components like sealing strips is limited, making operation inconvenient and impacting production line efficiency. Furthermore, when a part of a one-piece door trim panel is damaged, the entire panel must be replaced, resulting in high maintenance costs.

[0004] To address the aforementioned issues, some solutions have proposed a split design, such as the Chinese patent application "A Zero-Step Lifting Structure for a Car Door Glass and a Car Door Having the Same," application number: CN202320161513.5. This design includes: a car door glass; a plastic guide rail, which is mounted on the car door window frame, has an opening extending outwards in the vehicle width direction, and extends along the vehicle's vertical direction; a guide member, generally Z-shaped, having a first component and a second component integrated as a whole, the first component being fixed to the inner surface of the car door glass in the vehicle width direction, the two ends of the second component extending inwards in the vehicle width direction to form two first protrusions, and the two ends of the second component extending outwards in the vehicle width direction to form two second protrusions, the guide member slidingly engaging with the plastic guide rail to achieve lifting and lowering of the car door glass along the plastic guide rail; a first decorative panel mounted on the surface of the car door window frame and a second decorative panel mounted on the surface of the first decorative panel, the outer surface of the car door glass in the vehicle width direction being flush with the outer surface of the second decorative panel.

[0005] However, the aforementioned door trim panel isolates the product function into two completely independent components, each assembled with the automotive sheet metal parts. The lack of direct connection and the gap between them leads to accumulated assembly errors and low relative positional accuracy. Over long-term use, vibration can cause loosening and abnormal noises. Furthermore, the lack of coordinated restraint and wrapping of the sealing strip results in unstable support, easy displacement, and insufficient sealing reliability. Utility Model Content

[0006] The technical problem to be solved by this application is to provide an automotive door trim panel that achieves a rigid connection and synchronous fixation between the panel body, the mounting rail and the sheet metal through a snap fastener, effectively eliminating the problems of error accumulation and vibration loosening in separate assembly, and improving assembly accuracy, structural stability and sealing reliability.

[0007] The technical solution adopted in this application is as follows: an automotive door trim panel, including a panel body and a mounting rail. The panel body is a long strip structure, including a first side near the window glass and a second side away from the window glass. The edge of the second side of the panel body is bent inward to form an assembly groove that mates with the automotive sheet metal. A protruding ridge is provided on the bottom surface of the first side of the panel body. The protruding ridge has an inverted structure. A plurality of positioning posts for inserting the automotive sheet metal are provided on the bottom surface of the panel body. A plurality of mounting seats are provided on the bottom surface of the panel body. The mounting seats have a U-shaped structure and protrude from the bottom surface of the panel body. A fastener is provided on the mounting seat. The fastener passes through the mounting rail and is fixed to the automotive sheet metal.

[0008] Compared with existing technologies, the advantages of this application are as follows: First, during the installation of the automotive door trim panel, pre-positioning is achieved through positioning posts on the bottom surface of the panel body, initial limiting is provided by the assembly groove on the second side, and finally, the trim panel, mounting rail, and sheet metal are simultaneously fastened by snap fasteners, eliminating the accumulation of errors caused by separate independent assembly and effectively improving the relative positional accuracy between components. This application achieves a rigid connection between the panel body and the mounting rail through snap fasteners, forming an integrated load-bearing structure. Compared with separate, disconnected solutions, this effectively avoids relative displacement, loosening, and abnormal noise problems between the trim panel and the rail under vehicle vibration conditions, improving long-term reliability.

[0009] Secondly, the undercut ridge on the bottom of the first side of the plate body, together with the mounting guide rail, forms a cooperative limiting structure for the sealing strip, providing stable bidirectional support for the sealing strip, preventing it from shifting, flipping, or coming off, and improving sealing durability and reliability.

[0010] Finally, the U-shaped mounting base protrudes from the bottom surface of the plate body, and the fastener passes through the mounting guide rail and is fixed to the sheet metal. While ensuring that the split design facilitates the pre-installation of accessories, it also enables the rapid integration and assembly of related components, simplifies the process, and improves assembly efficiency.

[0011] In some embodiments of this application, the protruding ridge is provided along the first side edge of the plate body. The limiting structure is closer to the side of the window glass, allowing the inverted protruding ridge to act directly on the sealing strip, forming a more precise sealing boundary and improving the accuracy of the sealing strip's positioning.

[0012] In some embodiments of this application, the mounting base is positioned close to the protrusion, and a predetermined distance exists between the mounting base and the protrusion.

[0013] The mounting base is positioned adjacent to the protruding ridge, making the area where the mounting guide rail and the protruding ridge jointly limit the sealing strip more compact and the synergistic effect more direct. At the same time, the predetermined spacing avoids structural interference and ensures that a complete and continuous limiting space is formed between the protruding ridge and the guide rail.

[0014] In some embodiments of this application, multiple mounting seats are arranged regularly along a direction parallel to the convex ridge, and the U-shaped mounting seat includes a first side close to the vehicle window glass and a second side away from the vehicle window glass.

[0015] The regular arrangement along the convex ridges ensures even distribution of the snap-fit ​​points, preventing deformation caused by localized stress on the decorative panel. Clearly distinguishing the two sides of the mounting base provides clear guidance for the assembly of the snap-fit ​​components, preventing reverse installation and reducing assembly errors.

[0016] In some embodiments of this application, the first side of the mounting base is a sealed surface, and a snap-fit ​​is provided on the sealed surface of the mounting base, and the second side of the mounting base is an open surface.

[0017] The open side provides a large insertion path for the fasteners, improving assembly convenience; the closed side forms a mechanical stop, ensuring that the fasteners are accurately positioned after insertion and are not easily dislodged, achieving a balance between quick installation and reliable locking.

[0018] In some embodiments of this application, the fastening component includes a locking rod and a U-shaped buckle. One end of the locking rod is provided with a limiting cap, which acts on the bottom surface of the sheet metal part. The U-shaped buckle is fixedly sleeved on the locking rod, and the U-shaped buckle wraps around the bottom plate of the mounting base. The limiting cap directly abuts against the bottom surface of the sheet metal, providing reliable axial limiting; the U-shaped buckle wraps around the bottom plate of the mounting base to form surface contact fixation, which has stronger anti-torsion and anti-loosening capabilities compared to point contact, improving connection rigidity.

[0019] In some embodiments of this application, the U-shaped buckle is inserted through the open side of the mounting base, with one end of the U-shaped buckle inserted into the slot. Insertion from the open side is convenient and efficient; the end engaging with the slot forms a mechanical interlock, preventing the buckle from rotating or disengaging, ensuring a secure and reliable connection between the plate body, guide rail, and sheet metal.

[0020] In some embodiments of this application, a positioning hole is provided on the automotive sheet metal corresponding to the positioning post, one end of the positioning post is inserted into the positioning hole of the automotive sheet metal, and a pad is provided on the outer periphery of the positioning post to fill the gap between the automotive sheet metal and the sheet body.

[0021] The pad eliminates the assembly gap between the plate body and the sheet metal, preventing abnormal noise caused by vibration during driving, while also enhancing the deformation resistance of the positioning structure and improving assembly stability.

[0022] In some embodiments of this application, the pad is a rectangular block structure with a slot in the center for the positioning post to pass through. The rectangular block structure has stable contact with the sheet metal surface; the central slot facilitates quick insertion of the pad into the positioning post for pre-assembly, simplifying the assembly steps and improving production cycle time.

[0023] In some embodiments of this application, the assembly groove has a V-shaped structure, and multiple reinforcing ribs are regularly arranged inside the assembly groove. The reinforcing ribs have an L-shaped structure, and the automotive sheet metal is inserted above the reinforcing ribs. The V-shaped structure has a self-guiding function, which facilitates the insertion and centering of the sheet metal; the L-shaped reinforcing ribs provide lateral and longitudinal support in a limited space, which significantly enhances the structural rigidity of the assembly groove and prevents deformation and failure of fit after long-term use.

[0024] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0025] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0026] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ; Figure 3 This is a schematic diagram of the rear structure of this application; Figure 4 for Figure 3 Sectional view of section AA; Figure 5 for Figure 4 Sectional view of section BB; Figure 6 This is a schematic diagram of the assembly state of this application.

[0027] The specific descriptions of the reference numerals in the attached drawings are as follows: 1. Plate body; 2. Mounting guide rail; 4. Automotive sheet metal; 5. Assembly groove; 6. Protruding ridge; 7. Positioning post; 8. Mounting base; 9. Fastener; 10. Bayonet; 11. Locking rod; 12. U-shaped buckle; 13. Limit cap; 15. Pad; 16. Reinforcing rib. Detailed Implementation

[0028] The present application will now be described in detail with reference to the accompanying drawings.

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] A car door trim panel, embodiment one as follows Figure 1 and Figure 3 As shown: It includes a plate body 1 and a mounting rail 2. The plate body 1 is a long strip structure. The plate body 1 includes a first side close to the window glass and a second side away from the window glass. The edge of the second side of the plate body 1 is bent inward to form an assembly groove 5 that mates with the automotive sheet metal 4. A protruding rib 6 is provided on the bottom surface of the first side of the plate body 1. The protruding rib 6 has an inverted structure. The inverted protruding rib 6 on the bottom surface of the first side of the plate body 1 and the mounting rail 2 together form a cooperative limiting structure for the sealing strip, providing stable bidirectional support for the sealing strip, preventing it from shifting, flipping, or falling out, and improving the sealing durability and reliability.

[0031] The bottom surface of the panel body 1 is provided with multiple positioning posts 7 for inserting into the automotive sheet metal 4, and multiple mounting seats 8 are provided on the bottom surface of the panel body 1. The mounting seats 8 are U-shaped and protrude from the bottom surface of the panel body 1. The mounting seats 8 are equipped with fasteners 9, which pass through the mounting guide rail 2 and are fixed to the automotive sheet metal 4. When the automotive door trim panel is installed, the positioning posts 7 on the bottom surface of the panel body 1 achieve pre-positioning, the assembly groove 5 on the second side provides initial limiting, and finally the fasteners 9 simultaneously fasten the trim panel, mounting guide rail 2, and sheet metal, eliminating the error accumulation caused by separate independent assembly and effectively improving the relative positional accuracy between the components. This application achieves a rigid connection between the panel body 1 and the mounting guide rail 2 through the fasteners 9, making the three form an integral load-bearing structure. Compared with the separate solution without connection, it effectively avoids the problems of relative displacement, loosening, and abnormal noise between the trim panel and the guide rail under vehicle vibration conditions, and improves long-term reliability.

[0032] Example 2, as Figures 1 to 6 As shown, the protruding rib 6 is provided along the first side edge of the plate body 1. The limiting structure is closer to the side of the window glass, so that the inverted protruding rib 6 can directly act on the sealing strip, forming a more precise sealing boundary and improving the accuracy of the sealing strip's limiting.

[0033] The mounting base 8 is positioned close to the protruding ridge 6, with a predetermined distance between the mounting base 8 and the protruding ridge 6. The proximity of the mounting base 8 to the protruding ridge 6 makes the area where the mounting guide rail 2 and the protruding ridge 6 jointly limit the sealing strip more compact, resulting in a more direct synergistic effect. Simultaneously, the predetermined distance avoids structural interference, ensuring a complete and continuous limiting space is formed between the protruding ridge 6 and the guide rail.

[0034] Multiple mounting bases 8 are arranged regularly along a direction parallel to the protruding ridge 6. The U-shaped mounting bases 8 include a first side close to the window glass and a second side away from the window glass. The regular arrangement along the protruding ridge 6 ensures a uniform distribution of the engagement points, avoiding deformation caused by localized stress on the trim panel. Clearly distinguishing the two sides of the mounting base 8 provides clear guidance for the assembly of the fasteners 9, preventing reverse installation and reducing the assembly error rate.

[0035] The first side of the mounting base 8 is a sealed surface, and a latch 10 is provided on the sealed surface of the mounting base 8. The second side of the mounting base 8 is an open surface. The open surface provides a large space for the insertion path of the fastener 9, improving the ease of assembly; the latch 10 on the sealed surface forms a mechanical stop, ensuring that the fastener 9 is accurately positioned after insertion and is not easy to fall out, achieving a combination of quick installation and reliable locking.

[0036] The fastener 9 includes a locking rod 11 and a U-shaped buckle 12. A limiting cap 13 is provided at one end of the locking rod 11, acting on the bottom surface of the sheet metal part. The U-shaped buckle 12 is fixedly sleeved on the locking rod 11, enclosing the bottom plate of the mounting base 8. The limiting cap 13 directly abuts against the bottom surface of the sheet metal, providing reliable axial limiting. The U-shaped buckle 12 encloses the bottom plate of the mounting base 8, forming a surface contact fixation, which has stronger anti-torsion and anti-loosening capabilities compared to point contact, improving connection rigidity.

[0037] The U-shaped buckle 12 is inserted through the open side of the mounting base 8, with one end of the U-shaped buckle 12 inserted into the slot 10. Insertion from the open side is convenient and efficient; after the end is engaged in the slot 10, a mechanical interlock is formed to prevent the buckle 9 from rotating or coming off, ensuring a firm and reliable connection between the plate body 1, the guide rail, and the sheet metal.

[0038] The automotive sheet metal 4 has positioning holes corresponding to the positioning pins 7. One end of the positioning pin 7 is inserted into the positioning hole of the automotive sheet metal 4. A pad 15 is provided on the outer periphery of the positioning pin 7, which fills the gap between the automotive sheet metal 4 and the sheet body 1. The pad 15 eliminates the assembly gap between the sheet body 1 and the sheet metal, prevents abnormal noise caused by vibration during driving, and enhances the deformation resistance of the positioning structure, thereby improving assembly stability.

[0039] The pad 15 is a rectangular block structure with a slot in the middle for the positioning post 7 to pass through. The rectangular block structure has stable contact with the sheet metal surface; the slot in the middle facilitates the quick insertion of the pad 15 into the positioning post 7 for pre-assembly, simplifying the assembly steps and improving the production cycle.

[0040] The assembly groove 5 has a V-shaped structure, and multiple reinforcing ribs 16 are regularly arranged inside the assembly groove 5. The reinforcing ribs have an L-shaped structure, and the automotive sheet metal 4 is inserted above the reinforcing ribs 16. The V-shaped structure has a self-guiding function, which facilitates the insertion and centering of the sheet metal; the L-shaped reinforcing ribs 16 provide both lateral and longitudinal support in a limited space, which significantly enhances the structural rigidity of the assembly groove 5 and prevents deformation and failure of fit after long-term use.

[0041] The rest of the contents of Example 2 are the same as those of Example 1.

[0042] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A car door trim panel, characterized in that, The assembly includes a plate body (1) and a mounting rail (2). The plate body (1) is a long strip structure. The plate body (1) includes a first side close to the car window glass and a second side away from the car window glass. The edge of the second side of the plate body (1) is bent inward to form an assembly groove (5) that cooperates with the car sheet metal (4). A protruding ridge (6) is provided on the bottom surface of the first side of the plate body (1). The protruding ridge (6) has an inverted structure. The bottom surface of the plate body (1) is provided with multiple positioning posts (7) for inserting into the car sheet metal (4). The bottom surface of the plate body (1) is provided with multiple mounting seats (8). The mounting seats (8) have a U-shaped structure and protrude from the bottom surface of the plate body (1). The mounting seats (8) are equipped with fasteners (9). The fasteners (9) pass through the mounting rail (2) and are fixed to the car sheet metal (4).

2. The automotive door trim panel according to claim 1, characterized in that, The protruding ridge (6) is provided along the first side edge of the plate body (1).

3. The automotive door trim panel according to claim 1, characterized in that, The mounting base (8) is positioned close to the protrusion (6), and there is a predetermined distance between the mounting base (8) and the protrusion (6).

4. The automotive door trim panel according to claim 1, characterized in that, Multiple mounting bases (8) are regularly arranged along a direction parallel to the convex ridge (6). The U-shaped mounting bases (8) include a first side close to the window glass and a second side away from the window glass.

5. A car door trim panel according to claim 4, characterized in that, The first side of the mounting base (8) is a sealing surface, and a slot (10) is provided on the sealing surface of the mounting base (8). The second side of the mounting base (8) is an open surface.

6. The automotive door trim panel according to claim 1, characterized in that, The fastener (9) includes a latch (11) and a U-shaped buckle (12). One end of the latch (11) is provided with a limit cap (13), which acts on the bottom surface of the sheet metal part. The U-shaped buckle (12) is fixedly sleeved on the latch (11) and wraps the bottom plate of the mounting base (8).

7. A car door trim panel according to claim 6, characterized in that, The U-shaped buckle (12) is inserted through the open side of the mounting base (8), with one end of the U-shaped buckle (12) inserted into the slot (10).

8. The automotive door trim panel according to claim 1, characterized in that, The automotive sheet metal (4) is provided with positioning holes corresponding to the positioning pins (7). One end of the positioning pins (7) is inserted into the positioning holes of the automotive sheet metal (4). The outer periphery of the positioning pins (7) is provided with pads (15), which fill the gap between the automotive sheet metal (4) and the plate body (1).

9. A car door trim panel according to claim 8, characterized in that, The pad (15) is a rectangular block structure, and a slot is provided in the middle of the pad (15) for the positioning post (7) to pass through.

10. A car door trim panel according to claim 1, characterized in that, The assembly groove (5) has a V-shaped structure, and multiple reinforcing ribs (16) are regularly arranged inside the assembly groove (5). The reinforcing ribs (16) have an L-shaped structure, and the automotive sheet metal (4) is inserted above the reinforcing ribs (16).

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