Back door inner plate assembly, back door structure and vehicle

Abstract

The invention provides a back door inner plate assembly, a back door structure and a vehicle, the back door inner plate assembly comprises a back door inner plate and a top reinforcing plate, the back door inner plate and the top reinforcing plate are of a split structure, and the two ends of the top reinforcing plate in the extending direction are connected with the two side edges of the back door inner plate; the rear edge of the top of the back door inner plate is located at the front end of the front edge of the top reinforcing plate and is spaced from the front edge of the top reinforcing plate, and the rear end of the top reinforcing plate forms a partial structure of the back door glass connecting part. The split type structure comprising the back door inner plate and the top reinforcing plate is adopted, the forming process of the back door inner plate is simplified, the rear edge of the top of the back door inner plate is located at the front end of the front edge of the top reinforcing plate and is spaced from the front edge of the top reinforcing plate, the size of the top reinforcing plate is smaller than that of a top plate in the related technology, the material cost is reduced, and the light weight requirement is met.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a tailgate inner panel assembly, tailgate structure, and vehicle. Background Technology

[0002] In related technologies, the top of the inner panel of the tailgate has an integrally formed top plate, which is connected to the outer panel of the tailgate. The rear end connection of the top plate and the outer panel of the tailgate is used to connect the tailgate glass, thereby improving the installation rigidity of the tailgate glass. However, the inner panel of the tailgate in related technologies is difficult to form, and it is heavy and has high material costs. Summary of the Invention

[0003] The purpose of this application is to provide a rear door inner panel assembly that is easy to mold, has low weight, and reduces material costs.

[0004] To solve the above-mentioned technical problems, this application provides a rear tailgate inner panel assembly, including a rear tailgate inner panel and a top reinforcing plate. The rear tailgate inner panel and the top reinforcing plate are separate structures. The top reinforcing plate is located at the top of the rear tailgate inner panel. The two ends of the top reinforcing plate in the extending direction are connected to the two sides of the rear tailgate inner panel. The rear edge of the top of the rear tailgate inner panel is located at the front end of the front edge of the top reinforcing plate and has a gap. The rear end portion of the top reinforcing plate forms part of the structure of the rear tailgate glass connection part.

[0005] Wherein, the rear edge of the top of the inner rear door panel is the side edge of the top of the inner rear door panel near the rear of the vehicle, so with the front and rear of the vehicle as a reference, the front edge of the top reinforcing plate is the side edge of the top reinforcing plate near the front of the vehicle, the front end of the front edge of the top reinforcing plate is the end of the front edge of the top reinforcing plate near the front of the vehicle, and the rear end of the top reinforcing plate is the end of the top reinforcing plate near the rear of the vehicle.

[0006] In this embodiment, the rear tailgate inner panel assembly adopts a split structure including the rear tailgate inner panel and the top reinforcing plate. That is, the rear tailgate inner panel and the top reinforcing plate are molded separately and then connected during assembly. Simultaneously, the rear end portion of the top reinforcing plate forms part of the rear tailgate glass connection portion. Therefore, in this embodiment, the top reinforcing plate in the rear tailgate inner panel assembly functions similarly to the top plate in related technologies. The top reinforcing plate can replace the top plate in related technologies. Therefore, in this embodiment, the rear tailgate inner panel does not require an integrally molded top plate. Compared to the structure of the rear door inner panel in related technologies, the structure is simpler, reducing the molding difficulty of the rear door inner panel. At the same time, since the rear door inner panel and the top reinforcing plate are separate structures, the rear edge of the top of the rear door inner panel is located at the front end of the front edge of the top reinforcing plate and has a gap. This makes the size of the top reinforcing plate in the front-rear direction smaller than that of the top plate in related technologies. This reduces the material cost of the rear door inner panel assembly in this embodiment, reduces the weight of the rear door inner panel assembly in this embodiment, and meets the requirements for lightweighting.

[0007] Optionally, the top reinforcing plate has connecting portions at both ends in the front-rear direction for connecting to the outer panel of the tailgate, and the top reinforcing plate forms an inwardly recessed portion between the two connecting portions, wherein the inward side is the side facing the interior of the vehicle body.

[0008] Optionally, the top reinforcing plate is provided with a first mounting portion for mounting an amplifier;

[0009] And / or, the top reinforcing plate is provided with a second mounting portion for mounting the filter.

[0010] Optionally, the first mounting portion includes a rivet nut; and / or, the second mounting portion includes a rivet nut.

[0011] Optionally, the top reinforcing plate is provided with a third mounting part for mounting the left interior trim panel and a fourth mounting part for mounting the right interior trim panel at both ends of its extension direction.

[0012] And / or, the top reinforcing plate is provided with a fifth mounting part for mounting the interior trim panel at both ends in the front-rear direction.

[0013] Optionally, the top reinforcing plate has wire harness clearance holes;

[0014] And / or, the top reinforcing plate has weight-reducing holes.

[0015] This application also provides a tailgate structure, including the aforementioned tailgate inner panel assembly.

[0016] The tailgate structure of this application includes the aforementioned tailgate inner panel assembly, and therefore has the same technical effect as the aforementioned tailgate inner panel assembly, which will not be repeated here.

[0017] Optionally, it also includes a rear tailgate outer panel, which is connected to the outside of the rear tailgate inner panel assembly. The two ends of the top reinforcing plate in the front-rear direction are connected to the rear tailgate outer panel. A cavity structure is formed between the top reinforcing plate and the rear tailgate outer panel. The rear end connection portion of the top reinforcing plate and the rear tailgate outer panel forms part of the structure of the rear tailgate glass connection portion.

[0018] Optionally, the tailgate structure further includes a filter connected to the top reinforcing plate;

[0019] And / or, the rear door structure also includes an amplifier connected to the top reinforcement plate.

[0020] Optionally, the tailgate structure also includes an interior trim panel, which is fixedly connected to the top reinforcing plate;

[0021] And / or, the tailgate structure further includes a left interior trim panel and a right interior trim panel, wherein the left interior trim panel is fixedly connected to the left end of the top reinforcing plate, and the right interior trim panel is fixedly connected to the right end of the top reinforcing plate.

[0022] This application also provides a vehicle including the aforementioned tailgate structure.

[0023] The vehicle in this application includes the aforementioned tailgate structure, and therefore has the same technical effect as the aforementioned tailgate structure, which will not be repeated here. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a specific embodiment of the rear door structure provided in this embodiment;

[0025] Figure 2 for Figure 1 Structural diagram of the middle and rear tailgate inner panel assembly;

[0026] Figure 3 for Figure 1 A partial structural diagram of the inner side of the rear tailgate structure;

[0027] Figure 4 for Figure 3 Enlarged view of region A in the middle;

[0028] Figure 5 for Figure 1 Cross-sectional view of the rear door structure at the amplifier location;

[0029] Figure 6 for Figure 1 Cross-sectional view of the rear door structure at the filter location;

[0030] in, Figures 1-6 The accompanying figure labels are as follows:

[0031] 1-Inner rear door panel; 11-Side edge; L1-Rear edge;

[0032] 2-Top reinforcing plate; 21-Connecting part; L2-Front edge; 2a-Recessed part; 2b-First mounting part; 2c-Second mounting part; 2d-Third mounting part; 2e-Fourth mounting part; 2f-Fifth mounting part; 2g-Wire harness clearance hole; 2h-Weight reduction hole;

[0033] 3-Rear door outer panel; 3a-Annular connecting part;

[0034] 4-Amplifier;

[0035] 5-Filter;

[0036] 6- Interior trim panel;

[0037] A - Rear door glass connection part; B - Cavity structure. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] In this article, when the rear tailgate inner panel assembly is installed on the vehicle body, the end closer to the front of the vehicle is called the "front end", the end closer to the rear of the vehicle is called the "rear end", the end closer to the interior of the vehicle body is called the "inner end", and the end closer to the exterior of the vehicle body is called the "outer end".

[0040] Please refer to Figures 1-6 , Figure 1 This is a schematic diagram of a specific embodiment of the rear door structure provided in this embodiment; Figure 2 for Figure 1 Structural diagram of the middle and rear tailgate inner panel assembly; Figure 3 for Figure 1 A partial structural diagram of the inner side of the rear tailgate structure; Figure 4 for Figure 3 Enlarged view of region A in the middle; Figure 5 for Figure 1 Cross-sectional view of the rear door structure at the amplifier location; Figure 6 for Figure 1 Cross-sectional view of the rear door structure at the filter location.

[0041] This embodiment provides a rear tailgate inner panel assembly, including a rear tailgate inner panel 1 and a top reinforcing plate 2. The rear tailgate inner panel 1 and the top reinforcing plate 2 are separate structures. The top reinforcing plate 2 is located at the top of the rear tailgate inner panel 1. The two ends of the top reinforcing plate 2 in the extending direction are connected to the two side edges 11 of the rear tailgate inner panel 1. The rear edge L1 of the top of the rear tailgate inner panel 1 is located at the front end of the front edge L2 of the top reinforcing plate 2 and has a gap. The rear end portion of the top reinforcing plate forms part of the structure of the rear tailgate glass connection part.

[0042] Wherein, the rear edge of the top of the inner rear door panel is the side edge of the top of the inner rear door panel near the rear of the vehicle, so with the front and rear of the vehicle as a reference, the front edge of the top reinforcing plate is the side edge of the top reinforcing plate near the front of the vehicle, the front end of the front edge of the top reinforcing plate is the end of the front edge of the top reinforcing plate near the front of the vehicle, and the rear end of the top reinforcing plate is the end of the top reinforcing plate near the rear of the vehicle.

[0043] In this embodiment, the rear tailgate inner panel assembly adopts a split structure including the rear tailgate inner panel 1 and the top reinforcing plate 2. That is, the rear tailgate inner panel 1 and the top reinforcing plate 2 are formed separately and then connected during assembly. Simultaneously, the rear end portion of the top reinforcing plate 2 forms part of the rear tailgate glass connecting portion A, i.e., the rear end portion of the top reinforcing plate 2 is used to connect the rear tailgate glass. Therefore, in this embodiment, the function of the top reinforcing plate 2 in the rear tailgate inner panel assembly is the same as that of the top plate in related technologies. The top reinforcing plate 2 can replace the top plate in related technologies. Therefore, in this embodiment, the rear tailgate inner panel 1 does not need to be integrally formed. The structure of the formed top panel and the rear tailgate inner panel 1 is simpler than that of the rear tailgate inner panel in the related technology, reducing the molding difficulty of the rear tailgate inner panel 1. At the same time, since the rear tailgate inner panel 1 and the top reinforcing plate 2 are separate structures, the rear edge L1 of the top of the rear tailgate inner panel 1 is located at the front end of the front edge L2 of the top reinforcing plate 2 and has a gap. This makes the size of the top reinforcing plate 2 in the front-rear direction smaller than that of the top panel in the front-rear direction in the related technology. This can reduce the material cost of the rear tailgate inner panel assembly in this embodiment, reduce the weight of the rear tailgate inner panel assembly in this embodiment, and meet the requirements of lightweighting.

[0044] like Figure 5 and Figure 6 As shown, in this embodiment, the top reinforcing plate 2 has connecting portions 21 at both ends in the front and rear directions for connecting the outer panel 3 of the rear tailgate. The top reinforcing plate 2 forms an inwardly recessed portion 2a between the two connecting portions 21, wherein the inner side is the side facing the interior of the vehicle body.

[0045] As set above, when the two connecting parts 21 of the top reinforcing plate 2 are connected to the outer panel 3 of the rear door, the recessed part 2a forms a cavity structure B between the top reinforcing plate 2 and the outer panel 3 of the rear door. The cavity structure B can effectively improve the structural rigidity of the rear door structure, thereby improving the installation rigidity of the rear door glass.

[0046] In some embodiments, the two ends of the top reinforcing plate 2 extending in the direction of extension and the two sides 11 of the inner panel 1 of the rear door can be fixed by welding, and the connection is reliable.

[0047] In the tailgate structure of related technologies, the amplifier is usually installed around the tailgate glass. Therefore, the sheet metal structure around the tailgate glass is relatively large. In order to effectively block the sheet metal structure around the tailgate glass, the black area of ​​the tailgate glass is also relatively large. As a result, the area of ​​the transparent area in the center of the tailgate glass will be reduced, resulting in poor visual effect and reduced ride comfort.

[0048] Based on this, such as Figure 3 and Figure 5 As shown, in this embodiment, the top reinforcing plate 2 is provided with a first mounting part 2b for mounting the amplifier 4.

[0049] Thus, in this embodiment, the top reinforcing plate 2 provides an amplifier 4 mounting point. During assembly, the amplifier 4 can be connected to the top reinforcing plate 2 through the first mounting part 2b. The amplifier 4 is no longer located around the rear door glass. Therefore, the volume of the sheet metal structure around the rear door glass can be reduced, and the area of ​​the black area of ​​the rear door glass can also be reduced. As a result, the area of ​​the transparent area in the center of the rear door glass will be increased, resulting in a better visual effect and improved ride comfort.

[0050] In this embodiment, the first mounting part 2b includes a rivet nut, which can be threadedly connected to the screw of the amplifier 4 to fix the amplifier 4 and the top reinforcing plate 2. The rivet nut is more suitable for the application scenario of thin metal plates and will not damage the top reinforcing plate 2. It has the advantages of reliable connection and easy disassembly and assembly.

[0051] In some other embodiments of this application, the first mounting part 2b includes a mounting hole. During assembly, the screw of the amplifier 4 passes through the inside of the mounting hole. The rear door inner panel assembly also includes a fixing nut. The fixing nut is fitted onto the screw of the amplifier 4 and is threadedly connected to the screw. When the fixing nut is screwed to abut against the side wall of the top reinforcing plate 2 facing away from the amplifier 4, the amplifier 4 and the top reinforcing plate 2 are fixed.

[0052] Similarly, in the tailgate structure of related technologies, filters are usually installed around the tailgate glass, resulting in a larger dark area of ​​the tailgate glass and a smaller transparent area in the center of the tailgate glass, which in turn leads to poor visual effect and reduced ride comfort.

[0053] Based on this, such as Figure 2 and Figure 6 As shown, in this embodiment, the top reinforcing plate 2 is provided with a second mounting part 2c for mounting the filter 5.

[0054] Thus, in this embodiment, the top reinforcing plate 2 provides a mounting point for the filter 5. During assembly, the filter 5 can be connected to the top reinforcing plate 2 through the second mounting part 2c. The filter 5 is no longer located around the rear door glass. Therefore, the volume of the sheet metal structure around the rear door glass can be reduced, and the area of ​​the black area of ​​the rear door glass can also be reduced. As a result, the area of ​​the transparent area in the center of the rear door glass will be increased, resulting in a better visual effect and improved ride comfort.

[0055] In this embodiment, the second mounting part 2c includes a rivet nut, which can be threadedly connected to the screw of the filter 5 to fix the filter 5 and the top reinforcing plate 2. The rivet nut is more suitable for the application scenario of thin metal plates and will not damage the top reinforcing plate 2. It has the advantages of reliable connection and easy disassembly and assembly.

[0056] In some other embodiments of this application, the second mounting part 2c includes a mounting hole. During assembly, the screw of the filter 5 passes through the inside of the mounting hole. The rear door inner panel assembly also includes a fixing nut. The fixing nut is fitted onto the screw of the filter 5 and is threadedly connected to the screw. When the fixing nut is screwed to abut against the side wall of the top reinforcing plate 2 facing away from the filter 5, the filter 5 and the top reinforcing plate 2 are fixed.

[0057] Please continue to refer to this. Figure 3 In this embodiment, the top reinforcing plate 2 has a third mounting part 2d for mounting the left interior trim panel and a fourth mounting part 2e for mounting the right interior trim panel at both ends of its extension direction.

[0058] In some embodiments, the third mounting part 2d can be in the form of a connecting hole, and the interior left guard plate is provided with a corresponding through hole. During assembly, the third mounting part 2d and the through hole are connected. The rear door inner panel assembly also includes a connecting bolt and a fixing nut. The connecting bolt passes through the third mounting part 2d and the through hole, and the connecting bolt and the fixing nut are connected to fix the top reinforcing plate 2 and the interior left guard plate.

[0059] In some embodiments, the fourth mounting part 2e can be in the form of a connecting hole, and the right interior trim panel is provided with a corresponding through hole. During assembly, the fourth mounting part 2e and the through hole are connected. The rear door inner panel assembly also includes a connecting bolt and a fixing nut. The connecting bolt passes through the fourth mounting part 2e and the through hole, and the connecting bolt and the fixing nut are connected to fix the top reinforcing plate 2 and the right interior trim panel.

[0060] In this way, the top reinforcing plate 2 can achieve the matching of the installation position of the left and right interior trim panels, improve the installation position accuracy of the left and right interior trim panels, and ensure the aesthetics of the interior styling DTS (Design Tolerance Specification).

[0061] Please continue to refer to this. Figure 3 In this embodiment, the top reinforcing plate 2 has a fifth mounting part 2f at both ends in the front and rear directions for mounting the interior trim panel 6.

[0062] In some embodiments, the fifth mounting part 2f can be in the form of a connecting hole, and the interior upper guard plate 6 is provided with a corresponding snap-fit ​​part. During assembly, the snap-fit ​​part of the interior upper guard plate 6 is snapped into the corresponding connecting hole to fix the interior upper guard plate 6 and the top reinforcing plate 2.

[0063] Thus, the top reinforcing plate 2 can also achieve the installation positioning and matching of the interior upper guard plate 6, improve the installation position accuracy of the interior upper guard plate 6, and ensure the aesthetics of the interior styling DTS; and the snap-fit ​​fixing method makes the installation of the interior upper guard plate 6 more convenient and improves assembly efficiency.

[0064] Depend on Figure 3 As can be seen, in this embodiment, the front end of the top reinforcing plate 2 is provided with three fifth mounting parts 2f, and the distance between two adjacent fifth mounting parts 2f is similar, which ensures the flatness of the interior upper guard plate 6 and avoids problems such as warping of the interior upper guard plate 6.

[0065] Similarly, by Figure 3 As can be seen, in this embodiment, the rear end of the top reinforcing plate 2 is provided with four fifth mounting parts 2f, and the distance between two adjacent fifth mounting parts 2f is similar, which ensures the flatness of the interior upper guard plate 6 and avoids problems such as warping of the interior upper guard plate 6.

[0066] In some other embodiments of this application, the fifth mounting part 2f can be in the form of a connecting hole, and the interior trim panel 6 is provided with a corresponding through hole. During assembly, the fifth mounting part 2f and the through hole are connected. The rear door inner panel assembly also includes a connecting bolt and a fixing nut. The connecting bolt passes through the fifth mounting part 2f and the through hole, and the connecting bolt and the fixing nut are connected to fix the top reinforcing plate 2 and the interior trim panel 6.

[0067] Please continue to refer to this. Figure 3 In this embodiment, the top reinforcing plate 2 has a wire harness avoidance hole 2g, which is used to avoid the connection wire harness of electronic devices such as high-mounted brake lights and cameras.

[0068] Depend on Figure 3As can be seen, in this embodiment, the wire harness clearance hole 2g is an elongated hole located in the middle of the top reinforcing plate 2, facilitating the passage of the connecting wire harness. In practice, the shape and position of the wire harness clearance hole 2g can be adaptively adjusted according to the number and arrangement of the connecting wire harnesses.

[0069] Please continue to refer to this. Figure 3 and Figure 4 In this embodiment, the top reinforcing plate 2 also has a weight reduction hole 2h, which is used to reduce the weight of the top reinforcing plate 2 and further reduce the weight of the rear door inner panel assembly to meet the lightweight requirements.

[0070] Depend on Figure 3 As can be seen, in this embodiment, there are two weight-reducing holes 2h. In practice, the number of weight-reducing holes 2h is not limited; provided that the structural rigidity of the top reinforcing plate 2 is guaranteed, the number of weight-reducing holes 2h can be at least one.

[0071] In this embodiment, the two weight-reduction holes 2h are respectively located at both ends of the wire harness avoidance hole 2g. In practice, the position of the weight-reduction holes 2h is not limited. In other embodiments of this application, the weight-reduction holes 2h can be located at one end of the wire harness avoidance hole 2g.

[0072] In this embodiment, the rear door inner panel assembly also includes a hinge reinforcement plate, which is connected to the rear door inner panel 1 and the top reinforcement plate 2, and the connecting hinge is disposed on the hinge reinforcement plate.

[0073] Therefore, the hinge reinforcement plate is used to improve the structural rigidity of the location where the hinge is connected, ensuring the reliable connection between the tailgate structure and the vehicle body.

[0074] In some embodiments, the hinge reinforcement plate, the rear door inner panel 1, and the top reinforcement plate 2 can be fixed by welding.

[0075] In addition, in this embodiment, the rear tailgate inner panel assembly also includes a left reinforcing plate and a right reinforcing plate. The left reinforcing plate is connected to the rear tailgate inner panel 1 and the top reinforcing plate 2, and is located at the left end of the rear tailgate inner panel 1, which is used to improve the structural rigidity of the left end of the rear tailgate inner panel assembly. The right reinforcing plate is connected to the rear tailgate inner panel 1 and the top reinforcing plate 2, and is located at the right end of the rear tailgate inner panel 1, which is used to improve the structural rigidity of the right end of the rear tailgate inner panel assembly.

[0076] In some embodiments, the left reinforcing plate and the inner panel 1 of the rear door and the top reinforcing plate 2 can be fixed by welding; the right reinforcing plate and the inner panel 1 of the rear door and the top reinforcing plate 2 can be fixed by welding.

[0077] This embodiment also provides a tailgate structure, including the aforementioned tailgate inner panel assembly.

[0078] The tailgate structure of this embodiment includes the aforementioned tailgate inner panel assembly, and therefore has the same technical effect as the aforementioned tailgate inner panel assembly, which will not be described again here.

[0079] Furthermore, such as Figure 1 , Figure 5 and Figure 6 As shown, in this embodiment, the rear door structure also includes a rear door outer panel 3, which is connected to the outside of the rear door inner panel assembly. The two ends of the top reinforcing plate 2 in the front-rear direction are connected to the rear door outer panel 3. There is a cavity structure B between the top reinforcing plate 2 and the rear door outer panel 3. The rear end connection of the top reinforcing plate 2 and the rear door outer panel 3 forms part of the structure of the rear door glass connection part A.

[0080] As set up above, the cavity structure B between the top reinforcing plate 2 and the rear door outer panel 3 helps to improve the overall structural rigidity of the rear door structure, thereby improving the structural rigidity of the rear door glass connection part A and the installation rigidity of the rear door glass.

[0081] Among them, such as Figure 1 As shown, in this embodiment, the outer panel 3 of the rear door has an annular connecting portion 3a. A portion of the upper part of the annular connecting portion 3a is connected to the connecting portion 21 located at the rear end of the top reinforcing plate 2. Except for the area connected to the top reinforcing plate 2, the other areas of the annular connecting portion 3a are connected to the inner panel 1 of the rear door. The annular connecting portion 3a forms part of the structure of the rear door glass connecting portion A. The outer surface of the annular connecting portion 3a is coated with adhesive, and the rear door glass is bonded and fixed to the rear door glass connecting portion A.

[0082] Furthermore, such as Figure 5 As shown, in this embodiment, the rear door structure also includes an amplifier 4, which is connected to the top reinforcing plate 2.

[0083] As a result, amplifier 4 is no longer located around the rear door glass. Therefore, the volume of the sheet metal structure around the rear door glass can be reduced, and the area of ​​the black zone of the rear door glass can also be reduced. As a result, the area of ​​the transparent zone in the center of the rear door glass will be increased, resulting in a better visual effect and improved passenger comfort.

[0084] The connection method between amplifier 4 and top reinforcing plate 2 is as described above and will not be repeated here.

[0085] Furthermore, such as Figure 6 As shown, in this embodiment, the rear door structure also includes a filter 5, which is connected to the top reinforcing plate 2.

[0086] As a result, the filter 5 is no longer located around the rear door glass. Therefore, the volume of the sheet metal structure around the rear door glass can be reduced, and the area of ​​the black zone of the rear door glass can also be reduced. As a result, the area of ​​the transparent zone in the center of the rear door glass will be increased, resulting in a better visual effect and improved passenger comfort.

[0087] The connection method between filter 5 and top reinforcing plate 2 is as described above and will not be repeated here.

[0088] Furthermore, in this embodiment, the rear door structure also includes an interior trim panel 6, which is connected to the top reinforcing plate 2.

[0089] Thus, in this embodiment, the top reinforcing plate 2 can also achieve the installation positioning and matching of the interior upper guard plate 6, improve the installation position accuracy of the interior upper guard plate 6, and ensure the aesthetics of the interior styling DTS.

[0090] The connection method between the interior upper guard plate 6 and the top reinforcement plate 2 is as described above and will not be repeated here.

[0091] Furthermore, in this embodiment, the rear door structure also includes a left interior trim panel and a right interior trim panel, with the left interior trim panel connected to the left end of the top reinforcing plate 2, and the right interior trim panel connected to the right end of the top reinforcing plate 2.

[0092] Thus, in this embodiment, the top reinforcing plate 2 can also achieve the installation positioning matching of the left and right interior trim panels, improve the installation position accuracy of the left and right interior trim panels, and ensure the aesthetics of the interior styling DTS.

[0093] The connection methods of the left interior trim panel and the top reinforcement panel 2, and the connection methods of the right interior trim panel and the top reinforcement panel 2 are as described above and will not be repeated here.

[0094] This embodiment also provides a vehicle including the aforementioned tailgate structure.

[0095] The vehicle in this embodiment includes the aforementioned tailgate structure, and therefore has the same technical effects as the aforementioned tailgate structure, which will not be described again here.

[0096] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A back door inner panel assembly characterized by, The back door inner plate (1) and the top reinforcing plate (2) are in a split structure, the top reinforcing plate (2) is located at the top of the back door inner plate (1), the two ends of the top reinforcing plate (2) in the extension direction are connected with the two side edges (11) of the back door inner plate (1), the rear edge (L1) of the top of the back door inner plate (1) is located at the front end of the front edge (L2) of the top reinforcing plate (2) and has a spacing, and part of the rear end of the top reinforcing plate (2) forms part of the structure of the back door glass connecting part (A). Wherein, the rear edge of the top of the back door inner plate (1) is the side edge of the top of the back door inner plate (1) close to the tail, so that the head and tail are taken as the reference, the front edge (L2) of the top reinforcing plate (2) is the side edge (L2) of the top reinforcing plate (2) close to the head, the front end of the front edge (L2) of the top reinforcing plate (2) is the end of the front edge (L2) of the top reinforcing plate (2) close to the head, and the rear end of the top reinforcing plate (2) is the end of the top reinforcing plate (2) close to the tail.

2. The back door inner panel assembly of claim 1, wherein, The two ends of the top reinforcing plate (2) in the front-rear direction have connecting parts (21) for connecting the back door outer plate (3), and the top reinforcing plate (2) forms a recessed part (2a) recessed inward between the two connecting parts (21), wherein the inward side is the side towards the inside of the vehicle body.

3. The back door inner panel assembly of claim 1, wherein, The top reinforcing plate (2) is provided with a first mounting part (2b) for mounting an amplifier (4); And / or, the top reinforcing plate (2) is provided with a second mounting part (2c) for mounting a filter (5).

4. The rear door inner panel assembly of claim 3, wherein, The first mounting part (2b) includes a pull rivet nut; and / or, the second mounting part (2c) includes a pull rivet nut.

5. The back door inner panel assembly of any one of claims 1-3, wherein, The two ends of the top reinforcing plate (2) in the extension direction are respectively provided with a third mounting part (2d) for mounting an interior left guard plate and a fourth mounting part (2e) for mounting an interior right guard plate; And / or, the two ends of the top reinforcing plate (2) in the front-rear direction are provided with a fifth mounting part (2f) for mounting an interior upper guard plate (6).

6. The rear door inner panel assembly of any of claims 1-3, wherein, The top reinforcing plate (2) has a wire harness avoiding hole (2g); And / or, the top reinforcing plate (2) has a weight reduction hole (2h).

7. A back door structure characterized by The back door inner plate assembly of any one of claims 1-6 is included.

8. The tailgate structure of claim 7, wherein, The back door structure further includes a back door outer plate (3) connected to the outside of the back door inner plate assembly, the two ends of the top reinforcing plate (2) in the front-rear direction are connected with the back door outer plate (3), a cavity structure (B) is formed between the top reinforcing plate (2) and the back door outer plate (3), and the rear end connecting part of the top reinforcing plate (2) and the back door outer plate (3) forms part of the structure of the back door glass connecting part (A).

9. The back gate structure of claim 7, wherein, The back door structure further includes a filter (5) connected to the top reinforcing plate (2); And / or, the back door structure further includes an amplifier (4) connected to the top reinforcing plate (2).

10. The back gate structure of claim 7, wherein, The rear door structure further comprises an interior upper fender (6) connected with the top reinforcement (2). And / or, the rear door structure further comprises an interior left fender connected with the left end of the top reinforcement (2) and an interior right fender connected with the right end of the top reinforcement (2).

11. A vehicle characterized by comprising: The rear door structure according to any one of claims 7-10.

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