Back door assembly and vehicle

Abstract

The utility model relates to the technical field of vehicle body structures, and particularly provides a back door assembly and a vehicle. The back door assembly comprises a back door inner plate and a back door outer plate, wherein the back door inner plate and the back door outer plate are integrally formed in a punching mode, and a plurality of installation structures used for installing peripheral components are formed on the edge portions of the two sides of the back door inner plate respectively. According to the back door assembly disclosed by the utility model, the back door inner plate and the back door outer plate are punched and formed by adopting an integral forming process, so that the number of assembly parts in the assembly can be greatly reduced, and the increase of the assembly workload caused by adopting a segmented welding and assembling form on the inner plate and the outer plate is avoided; meanwhile, a plurality of mounting structures for mounting peripheral parts are integrally formed on the back door inner plate, so that the number of auxiliary mounting parts such as mounting brackets and mounting plates can be greatly reduced; the number of parts of the back door assembly can be reduced, and therefore the assembling efficiency of the back door assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, and particularly relates to a rear door assembly. In addition, the utility model also relates to a vehicle. Background Technique

[0002] At present, in order to meet the overall styling requirements of the vehicle rear door and the stamping process forming requirements of the inner and outer panels of the rear door, the rear door sheet metal assembly is usually split into a split structure, which brings higher challenges to the overall weight of the rear door and the development cost of components. At the same time, the requirements for part accuracy, welding and assembly processes of the split structure are also further improved. The traditional split rear door sheet metal assembly is formed by connecting the rear door outer panel assembly and the rear door inner panel assembly into a whole through process methods including but not limited to welding, adhesives, hemming, etc., and provides an installation structure for body interior and exterior trims and electrical accessories such as hinges, struts, taillights, glass, wipers, spoilers, door locks, etc., to form the rear door sheet metal assembly.

[0003] Among them, the rear door outer panel assembly usually includes the upper section of the rear door outer panel, the lower section of the rear door outer panel and the rear door taillight mounting plate, and the above-mentioned split components are assembled by seam welding to form the rear door outer panel assembly. The rear door inner panel assembly usually includes the rear door inner panel, the rear door inner panel reinforcement beam, the rear door inner panel reinforcement plate, the rear door trim bracket, etc., and the above-mentioned split components are assembled by seam welding to form the rear door inner panel assembly.

[0004] However, since the above-mentioned rear door outer panel assembly and the rear door inner panel assembly both adopt the form of assembling and welding multiple components. In the processes of structure processing, stamping, etc. of each component, it will inevitably increase the design, manufacturing and assembly costs. And inevitably, the dimensional tolerances of multiple components, the welding process, etc. will also inevitably increase the accuracy deviation, increase the matching difficulty of the rear door sheet metal assembly and the exterior trim parts, and the production efficiency will also decrease accordingly. Content of the Utility Model

[0005] In view of this, the utility model aims to propose a rear door assembly to reduce the number of components of the rear door assembly, thereby improving the assembly efficiency of the rear door assembly.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] A rear door assembly,

[0008] including a rear door inner panel and a rear door outer panel integrally formed by stamping, and a plurality of installation structures for installing peripheral components are respectively formed at both side edge parts of the rear door inner panel.

[0009] Further, concave cavities for installing the rear door tail lights are respectively formed at both side edge portions of the outer panel of the rear door, and tail light installation through holes are opened at the bottoms of the concave cavities; the installation structure includes a tail light installation portion correspondingly arranged on the inner panel of the rear door for the concave cavities.

[0010] Further, at a height position corresponding to the rear door tail light, an exterior trim panel is arranged on the outer side of the outer panel of the rear door; the installation structure further includes a trim panel installation portion for fixing the side edge portion of the exterior trim panel to the inner panel of the rear door.

[0011] Further, the installation structure further includes a rear door stay rod installation portion for connecting the bottom end of the rear door stay rod.

[0012] Further, a flanging structure is formed at the side edge portion of the inner panel of the rear door, and the flanging structure includes a first flanging, a second flanging and a third flanging which are sequentially bent and connected from the inside of the inner panel of the rear door towards the side edge of the inner panel of the rear door; the tail light installation portion and the trim panel installation portion are both arranged on the third flanging, and the rear door stay rod installation portion is arranged on the first flanging.

[0013] Further, inner panel reinforcement plates are respectively arranged at both side edge portions of the inner panel of the rear door, and the inner panel reinforcement plates are arranged close to the corresponding side of the installation structure.

[0014] Further, rear door hinge reinforcement plates are respectively arranged at the left and right ends of the top of the inner panel of the rear door, and / or a rear door inner lock reinforcement plate is arranged at the bottom of the inner panel of the rear door.

[0015] Further, a rear door window is opened in the middle upper part of the inner panel of the rear door, and a cavity recessed towards the outer panel of the rear door is formed on the inner panel of the rear door at the lower border portion of the rear door window; a rear door wiper motor is installed in the cavity.

[0016] Further, corresponding to the cavity, a rear wiper motor mounting plate is arranged on the side of the inner panel of the rear door facing the outer panel of the rear door; the rear door wiper motor is fixedly connected to the cavity through a fastener penetrating through the bottom of the cavity.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The back door assembly of the present utility model is formed by stamping the inner panel and the outer panel of the back door using an integral molding process. This not only greatly reduces the number of assembled components in the assembly, avoiding an increase in the assembly workload caused by the form of segmental welding and assembly of the inner and outer panels, but also integrally forms multiple mounting structures for mounting peripheral components on the inner panel of the back door, which can greatly reduce the number of auxiliary mounting components such as mounting brackets and mounting plates. It is beneficial to reduce the number of components of the back door assembly, thereby improving the assembly efficiency of the back door assembly.

[0019] In addition, for the case where the back door tail light is provided on the outer panel of the back door, a tail light mounting portion is provided at the edge of the outer panel of the back door to realize the fixation of the back door tail light to the inner panel of the back door, which can improve the mounting stability of the back door tail light. For the case where an exterior panel is generally provided in the middle and lower parts of the outer panel of the back door, by respectively providing exterior panel mounting portions at the two side edges of the inner panel of the back door, the fixed installation of the exterior panel can be well realized.

[0020] Furthermore, by forming a flanging structure at the side edge of the inner panel of the back door, and the flanging structure is formed into a first flanging, a second flanging, and a third flanging that are sequentially connected through bends at multiple angles, not only can the structural strength of the edge of the inner panel of the back door be improved, but also a stable setting foundation is provided for the above-mentioned various mounting structures. By opening the above-mentioned various mounting holes on the appropriate flanging, the installation and fixation of the corresponding components can be well realized.

[0021] Another object of the present utility model is to propose a vehicle that adopts the back door assembly of the present utility model. The vehicle of the present utility model has the technical advantages possessed by the above-mentioned back door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model. The front-back, up-down and other orientation terms involved herein are only used to represent relative positional relationships and do not constitute any improper limitation to the present utility model. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the back door assembly according to an embodiment of the present utility model;

[0024] Figure 2 is a three-dimensional structure diagram of the inner panel of the back door according to an embodiment of the present utility model;

[0025] Figure 3 is Figure 2 a three-dimensional structure diagram of the inner panel of the back door shown from another perspective;

[0026] Figure 4 is Figure 2Front view of the inner panel of the rear door on the inner side of the vehicle;

[0027] Figure 5 is Figure 1 Cross-sectional view of the rear door assembly at the position shown by A-A in

[0028] Figure 6 is Figure 4 Cross-sectional view of the rear door assembly at the position shown by D-D in

[0029] Figure 7 is Figure 1 Cross-sectional view of the rear door assembly at the position shown by B-B in

[0030] Figure 8 is Figure 1 Cross-sectional view of the rear door assembly at the position shown by C-C in

[0031] Explanation of reference numerals:

[0032] 1. Inner panel of the rear door; 10. Trim panel mounting part; 11. Taillight mounting part; 12. Cavity; 13. Flanging structure; 131. First flanging; 132. Second flanging; 133. Third flanging; 14. Rear door strut mounting part;

[0033] 20. Inner panel reinforcement plate; 21. Rear wiper motor mounting plate; 22. Inner lock reinforcement plate of the rear door; 23. Hinge reinforcement plate of the rear door;

[0034] 3. Outer panel of the rear door; 30. Taillight mounting through hole; 31. Concave cavity;

[0035] 40. Inner cavity; 41. Rear door window;

[0036] 5. Exterior trim; 6. Rear door taillight; 7. Rear door wiper motor; 8. Rear door glass. Detailed implementation manners

[0037] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0038] In the description of the present utility model, it should be stated that if terms indicating orientation or positional relationship such as "upper, lower, left, right, front, rear, inner, outer" appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed or operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. Taking the vehicle described in the present utility model as an example, in the embodiments, the orientation terms such as "upper, lower, left, right, front, rear" are defined based on the up-down direction (also known as the height direction), left-right direction (also known as the width direction), and front-rear direction (also known as the length direction) of the vehicle. Specifically, in the drawings shown, the X direction is the front-rear direction of the vehicle, where the side pointed by the arrow is "front", and the opposite side is "rear". The Y direction is the left-right direction of the vehicle, where the side pointed by the arrow is "left", and the opposite side is "right". The Z direction is the up-down direction of the vehicle, where the side pointed by the arrow is "upper", and the opposite side is "lower". "Inner and outer" are defined based on the contour of the corresponding component. For example, "inner" and "outer" defined based on the vehicle contour, the side closer to the middle of the vehicle contour is "inner", and vice versa.

[0039] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connected to", "connecting parts" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or even the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations. The limiting terms such as "first, second, A, B, C, D" that appear in the description of the present utility model are only used to distinguish similar features of different positions, ownerships, or uses, etc., in order to achieve the purpose of avoiding ambiguity and confusion in the description, and should not be construed as indicating or implying relative importance.

[0040] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0041] Embodiment 1

[0042] This embodiment relates to a rear door assembly, which can reduce the number of components of the rear door assembly, thereby improving the assembly efficiency of the rear door assembly; an exemplary structure thereof is as Figure 1 , Figure 2 and Figure 3 shown.

[0043] Overall, the rear door assembly includes an integrally stamped inner rear door panel 1 and an outer rear door panel 3, and multiple mounting structures for installing peripheral components are formed at both edge portions of the inner rear door panel 1 respectively.

[0044] It should be noted that based on the above overall design concept, the technical solution of the present utility model can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, the above mounting structures can adopt different forms such as snap connection, welding, screwing, etc. For the parts required for the implementation of the overall solution but not involved in the above overall settings, reasonable and flexible designs can be made with reference to the mature setting means in the art, the actual situation during implementation, etc. The following specific implementation solutions of this embodiment are only one of the relatively better ones among the many solutions that can be formed by the above various combinations and their variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements in combination with the actual situation. Obviously, the many solutions that can be formed by the above various combinations of specific forms and their variations, as well as the specific implementation solutions of this embodiment, are all within the protection scope of the present utility model.

[0045] Specifically, in this embodiment, as Figure 4 and in combination with Figure 5 、 Figure 6 shown, concave cavities 31 for installing rear door tail lights 6 are respectively formed at both edge portions of the outer rear door panel 3, and tail light installation through holes 30 are opened at the bottoms of the concave cavities; the above mounting structure includes a tail light mounting portion 11 provided on the inner rear door panel 1 corresponding to the concave cavities 31. For the case where the rear door tail lights 6 are provided on the outer rear door panel 3, a tail light mounting portion 11 is provided at the edge of the outer rear door panel 3 to realize the fixation connection between the rear door tail lights 6 and the inner rear door panel 1, which can improve the mounting stability of the rear door tail lights 6.

[0046] Obviously, in addition to setting the above tail light mounting portion 11, other various mounting structures can also be set; specifically, in this embodiment, as Figure 4 、 Figure 6 and Figure 7 shown, corresponding to the height position of the rear door tail lights 6, an exterior trim panel 5 is provided on the outer side of the outer rear door panel 3; the mounting structure of this embodiment further includes a trim panel mounting portion 10 for fixing the side edge portion of the exterior trim panel 5 to the inner rear door panel 1. For the case where an exterior trim panel 5 is generally provided in the middle and lower parts of the outer rear door panel 3, by respectively providing trim panel mounting portions 10 at both edge portions of the inner rear door panel 1, the fixed installation of the exterior trim panel 5 can be well realized.

[0047] Moreover, the mounting structure of this embodiment further includes a rear door strut mounting portion 14 for connecting the bottom end of the rear door strut. By providing the rear door strut mounting portion 14 on the inner panel 1 of the rear door, the bottom end of the rear door strut can be hingedly mounted on the rear door strut mounting portion 14, providing a reliable mounting foundation for the installation of the rear door strut.

[0048] Meanwhile, it should be noted that the above-mentioned taillight mounting portion 11, trim panel mounting portion 10, and rear door strut mounting portion 14 of course have various structural forms, which can be a clamping point or a welding position; in this embodiment, the above-mentioned taillight mounting portion 11, trim panel mounting portion 10, and rear door strut mounting portion 14 are all preferably in the form of mounting holes, and the corresponding components are mounted on the mounting holes through bolt fasteners. The form of the mounting hole has the characteristics of reliable connection performance and easy processing and forming.

[0049] Based on the above settings, still as Figure 6 shown, a flanging structure 13 is formed at the side edge of the inner panel 1 of the rear door in this embodiment. The flanging structure 13 specifically includes a first flanging 131, a second flanging 132, and a third flanging 133 that are sequentially bent and connected from the inside of the inner panel 1 of the rear door to the side edge of the inner panel 1 of the rear door. Based on the settings of each flanging, the above-mentioned taillight mounting portion 11 and trim panel mounting portion 10 are both provided on the third flanging 133, and the rear door strut mounting portion 14 is provided on the first flanging 131.

[0050] By forming the flanging structure 13 at the side edge of the inner panel 1 of the rear door, and the flanging structure 13 is formed with the first flanging 131, the second flanging 132, and the third flanging 133 that are sequentially connected through multiple-angle bends, not only can the structural strength of the edge of the inner panel 1 of the rear door be improved, but also a stable setting foundation is provided for the above-mentioned various mounting structures. By opening the above-mentioned various mounting holes on the appropriate flangings, the installation and fixation of the corresponding components can be well realized. In this embodiment, the first flanging 131 is inclined from the main body portion of the inner panel 1 of the rear door towards the outside of the vehicle, which is suitable for connecting the bottom end of the rear door strut thereto; the second flanging 132 is bent from the edge of the first flanging 131 to a posture facing the rear of the vehicle, which is suitable for welding the edge of the following inner panel reinforcement plate 20 on the second flanging 132; a transition bending structure is provided between the third flanging 133 and the second flanging 132, and the third flanging 133 is also in a posture facing the rear of the vehicle, which is convenient for opening the mounting holes for installing the rear door taillight 6 and the exterior trim panel 5 on it.

[0051] In addition, in this embodiment, inner panel reinforcing plates 20 are respectively disposed at both edge portions of the inner panel 1 of the rear door, and the inner panel reinforcing plates 20 are disposed close to the mounting structures on the corresponding sides. By disposing the inner panel reinforcing plates 20 at positions close to the above-mentioned mounting structures, the structural strength of this position on the inner panel 1 of the rear door can be improved, thereby providing a reliable basis for the above-mentioned mounting structures.

[0052] As Figure 2 shown, in order to improve the structural strength of a local part of the inner panel 1 of the rear door, rear door hinge reinforcing plates 23 are respectively disposed at the left and right ends of the top of the inner panel 1 of the rear door in this embodiment. In addition, a rear door inner lock reinforcing plate 22 is disposed at the bottom of the inner panel 1 of the rear door. For the need to provide auxiliary components such as a rear door hinge and a rear door inner lock on the inner panel 1 of the rear door, rear door hinge reinforcing plates 23 and rear door inner lock reinforcing plates 22 are respectively disposed at corresponding positions, which can not only provide a reliable mounting basis for the corresponding auxiliary components, but also contribute to improving the structural strength of this part on the inner panel 1 of the rear door. Of course, the above-mentioned rear door inner lock reinforcing plate 22 and rear door hinge reinforcing plate 23 can be disposed separately, one of them can be selected, or both can be disposed; there is no mutual restriction relationship between them.

[0053] Still as Figure 2 and in combination with Figure 7 , Figure 8 shown, a rear door window 41 is formed in the upper middle part of the inner panel 1 of the rear door in this embodiment, and a cavity 12 recessed toward the outer panel 3 of the rear door is formed on the inner panel 1 of the rear door at the lower border part of the rear door window 41; the rear door wiper motor 7 is installed in the cavity 12. By providing the cavity 12 at the middle position of the inner panel 1 of the rear door, a good accommodating space can be provided for the installation of the rear door wiper motor 7, and the occupation of the inner space of the inner panel 1 of the rear door by the rear door wiper motor 7 can be reduced.

[0054] And, preferably, corresponding to the cavity 12, a rear wiper motor mounting plate 21 can be disposed on the side of the inner panel 1 of the rear door facing the outer panel 3 of the rear door; in this way, the rear door wiper motor 7 can be fixedly connected to the cavity 12 through a fastener penetrating the bottom of the cavity 12.

[0055] A rear wiper motor mounting plate 21 is provided on the inner panel 1 of the rear door corresponding to the cavity 12, which can improve the structural strength of this part, thereby providing a reliable installation foundation for the installation of the rear door wiper motor 7. It should be noted that the above-mentioned cavity 12, the rear door inner lock reinforcement plate 22 and the rear door hinge reinforcement plate 23 can be provided either on the inner side of the inner panel 1 of the rear door or on the outer side of the inner panel 1 of the rear door; preferably, in this embodiment, the above-mentioned cavity 12, the rear door inner lock reinforcement plate 22 and the rear door hinge reinforcement plate 23 are all provided on the outer side of the inner panel 1 of the rear door, that is, on the side facing the outer panel 3 of the rear door, so that the cavity 12, the rear door inner lock reinforcement plate 22 and the rear door hinge reinforcement plate 23 are all located in the inner cavity 40 formed between the inner panel 1 of the rear door and the outer panel 3 of the rear door; this can keep the neatness of the inner surface on one side of the inner panel 1 of the rear door and also reduce the occupation of the vehicle interior space.

[0056] Still as Figure 7 And in combination with Figure 8 As shown, in this embodiment, by moving the shapes of the rear door glass 8 and the outer panel 3 of the rear door towards the vehicle interior side, the outer panel 3 of the rear door, the rear door glass 8 and the exterior trim panel 5 together form the external shape of the rear door assembly. The drawing depth of the inner panel 1 of the rear door in the vehicle front-rear direction is reduced, and the *40 between the outer panel 3 of the rear door and the inner panel 1 of the rear door is reduced in size in the thickness direction of the rear door itself. This is beneficial to increasing the vehicle interior space, but has a certain impact on the overall structural performance of the rear door assembly. Different, by providing a flanging structure 13 at the side part of the inner panel 1 of the rear door and a "U"-shaped cavity 12 at the middle position of the inner panel 1 of the rear door, the overall rigidity and strength performance of the inner panel 1 of the rear door and the rear door assembly can be effectively improved, and also the layout space for the rear door wiper motor 7 is provided.

[0057] In summary, for the rear door assembly of this embodiment, both the inner panel 1 of the rear door and the outer panel 3 of the rear door are formed by integral molding process. This can not only greatly reduce the number of assembled parts in the assembly, avoiding the increase in assembly workload caused by the form of segmented welding and assembly of the inner and outer panels; at the same time, a plurality of mounting structures for mounting peripheral components are integrally formed on the inner panel 1 of the rear door, which can greatly reduce the number of auxiliary mounting components such as mounting brackets and mounting plates; it is beneficial to reducing the number of components of the rear door assembly, thereby improving the assembly efficiency of the rear door assembly.

[0058] Embodiment Two

[0059] This embodiment relates to a vehicle that adopts the rear door assembly provided in Embodiment One.

[0060] By adopting the rear door assembly provided by the present utility model, both the inner rear door panel 1 and the outer rear door panel 3 are of an integral structure, and a plurality of mounting structures are integrated on the inner rear door panel 1 for mounting peripheral components, meeting the styling requirements for the overall depth of the rear door in the vehicle's front-rear direction, solving the problem of difficult forming processes for the integral inner rear door panel 1 and outer rear door panel 3, achieving fewer components in the structure of the rear door assembly, improving the material utilization rate of the inner rear door panel 1 and the outer rear door panel 3, and being of great significance to the development cost and weight of the whole vehicle.

[0061] In addition, this integrated design avoids the accuracy impact caused by the dimensional tolerances of multiple components during the welding process, reduces the matching difficulty between the rear door assembly and its peripheral components, simplifies the process requirements, and improves the production efficiency; at the same time, since the mounting structures of the peripheral components of the rear door are integrally designed on the inner rear door panel 1, the space of the inner cavity 40 between the outer rear door panel 3 and the inner rear door panel 1 is greatly compressed, slightly reducing the overall rigidity of the rear door assembly. However, by setting a flanging structure and a concave cavity structure on the inner rear door panel 1, the structural strength of the outer rear door panel 3 and the inner rear door panel 1 and the structural performance of the inner cavity 40 are ensured, so that the rear door assembly has sufficient rigidity performance.

[0062] The above are only the preferred embodiments of the present utility model. The detailed explanation of the configuration, the examples of specific structural settings, or the description of the assembly connection methods, etc., are all for the need of full disclosure to enable those skilled in the art to better implement the present utility model, rather than to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rear door assembly, characterized in that: It includes an integrally stamped rear door inner panel (1) and a rear door outer panel (3), and a plurality of mounting structures for mounting peripheral components are respectively formed at both side edge parts of the rear door inner panel (1); Concave cavities (31) for mounting rear door tail lights (6) are respectively formed at both side edge parts of the rear door outer panel (3), and tail light mounting through holes (30) are opened at the bottoms of the concave cavities; The mounting structure includes a tail light mounting portion (11) provided on the rear door inner panel (1) corresponding to the concave cavity (31).

2. The rear door assembly according to claim 1, characterized in that: An exterior panel (5) is provided on the outer side of the rear door outer panel (3) corresponding to the height position of the rear door tail light (6); The mounting structure further includes a trim panel mounting portion (10) for fixing the side edge of the exterior panel (5) to the rear door inner panel (1).

3. The rear door assembly according to claim 2, characterized in that: The mounting structure further includes a rear door stay rod mounting portion (14) for connecting the bottom end of the rear door stay rod.

4. The rear door assembly according to claim 3, characterized in that: A flanging structure (13) is formed at the side edge part of the rear door inner panel (1), and the flanging structure (13) includes a first flanging (131), a second flanging (132), and a third flanging (133) that are sequentially bent and connected from the inside of the rear door inner panel (1) to the side edge of the rear door inner panel (1); The tail light mounting portion (11) and the trim panel mounting portion (10) are both provided on the third flanging (133), and the rear door stay rod mounting portion (14) is provided on the first flanging (131).

5. The rear door assembly according to claim 4, characterized in that: Inner panel reinforcement plates (20) are respectively provided at both side edge parts of the rear door inner panel (1), and the inner panel reinforcement plates (20) are arranged close to the corresponding mounting structures.

6. The rear door assembly according to any one of claims 1 to 5, characterized in that: Rear door hinge reinforcement plates (23) are respectively provided at the left and right ends of the top of the rear door inner panel (1), and / or a rear door inner lock reinforcement plate (22) is provided at the bottom of the rear door inner panel (1).

7. The rear door assembly according to any one of claims 1 to 5, characterized in that: A rear door window (41) is opened in the upper middle part of the rear door inner panel (1), and a cavity (12) recessed toward the rear door outer panel (3) is formed on the rear door inner panel (1) at the lower border part of the rear door window (41); A rear door wiper motor (7) is installed in the cavity (12).

8. The rear door assembly according to claim 7, characterized in that: A rear wiper motor mounting plate (21) is provided on the side of the rear door inner panel (1) facing the rear door outer panel (3) corresponding to the cavity (12); The rear door wiper motor (7) is fixedly connected to the cavity (12) through a fastener penetrating the bottom of the cavity (12).

9. A vehicle, characterized in that: The vehicle adopts the back door assembly according to any one of claims 1 to 8.

Images