Back door inner plate, back door assembly and vehicle

Abstract

The utility model discloses a back door inner plate, a back door assembly and a vehicle, the back door inner plate comprises a weight reduction integrated structure, and the weight reduction integrated structure is provided with a coating hanging hole, at least one rigidity reinforcing part and at least one weight reduction hole; each lightening hole is adjacent to at least one rigidity reinforcing part; and the at least one rigidity reinforcing part is at least positioned on the upper side of the coating hanging hole. According to the embodiment of the utility model, the supporting capacity of the edge of the coating hanging hole can be improved through the rigidity reinforcing part, so that the rigidity of the edge of the coating hanging hole is improved, and the coating hanging hole is not easy to deform when being supported by the coating hanging tool in the coating process.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an inner panel of a back door, a back door assembly and a vehicle. Background Art

[0002] The back door generally refers to the door located at the rear of the vehicle, which is used to open the trunk or the rear storage space.

[0003] The back door generally includes an inner panel of the back door and an outer panel of the back door. Function holes are usually formed in the inner panel of the back door. However, the stiffness of the existing inner panel of the back door at the opening is insufficient. Summary of the Utility Model

[0004] The utility model provides an inner panel of a back door, a back door assembly and a vehicle, aiming to at least solve the technical problem of insufficient stiffness at the opening of the inner panel of the back door in the prior art.

[0005] In the first aspect of the implementation of the utility model, firstly, an inner panel of a back door is provided, which includes a weight reduction integrated structure. The weight reduction integrated structure has a painting hanging hole, at least one stiffness strengthening part and at least one weight reduction hole;

[0006] Each of the weight reduction holes is adjacent to at least one of the stiffness strengthening parts;

[0007] At least one of the stiffness strengthening parts is at least located above the painting hanging hole.

[0008] Optionally, the weight reduction integrated structure further includes an outer panel support leg. The outer panel support leg is located at the edge of one of the weight reduction holes, and the outer panel support leg is used for connecting with the outer panel of the back door.

[0009] Optionally, the outer panel support leg includes a support part and a bending part which are connected to each other and arranged at an angle. The support part is formed by folding the inner panel of the back door towards the outer panel of the back door, and the bending part is used for bonding with the outer panel of the back door.

[0010] Optionally, along the length direction of the stiffness strengthening part, the distance between the painting hanging hole and the stiffness strengthening part is greater than or equal to 0 mm and less than or equal to 5 mm;

[0011] And / or, the stiffness strengthening part includes at least one reinforcing rib. The shape of the first cross section of the reinforcing rib is a U-shape. The first cross section of the reinforcing rib is perpendicular to the extending direction of the reinforcing rib, and the extending direction of the reinforcing rib is consistent with the length direction of the stiffness strengthening part.

[0012] Optionally, at least one of the weight reduction holes includes a first weight reduction hole and a second weight reduction hole which are arranged at intervals;

[0013] The stiffness strengthening portion is located between the first weight reduction hole and the second weight reduction hole, and the length direction of the stiffness strengthening portion intersects with the arrangement direction of the first weight reduction hole and the second weight reduction hole.

[0014] Optionally, a flanging structure is provided at the circumferential edge of the weight reduction hole, and the flanging structure is formed by folding the inner panel of the back door towards the outer panel of the back door.

[0015] In the second aspect of the implementation of the present invention, a back door assembly is further provided, including an outer panel of the back door and the inner panel of the back door as described above.

[0016] Optionally, the back door assembly further includes an outer trim panel connected to the outer panel of the back door;

[0017] An outer trim mounting through hole is provided on one of the stiffness strengthening portions in the inner panel of the back door, and the outer trim mounting through hole is used for a tool for installing the outer trim panel of the back door to pass through.

[0018] Optionally, the outer panel of the back door includes a first mounting portion, and a mounting hole for installing the outer trim panel of the back door is provided on the first mounting portion. The position of the outer trim mounting through hole corresponds to the position of the mounting hole, and the orthographic projection of the outer trim mounting through hole on the outer panel of the back door covers the mounting hole.

[0019] In the third aspect of the implementation of the present invention, a vehicle is further provided, including the back door assembly as described above.

[0020] In the embodiment of the present invention, at least one stiffness strengthening portion is at least located above the painting hanging hole. Through the stiffness strengthening portion, the supporting ability of the edge of the painting hanging hole can be improved, and further the stiffness of the edge of the painting hanging hole can be enhanced, so that the painting hanging hole is not easily deformed when receiving the supporting force of the painting hanging tool during the painting process, and the insufficient stiffness caused by directly opening the painting hanging hole at the edge of the weight reduction hole can be avoided. In addition, by arranging each weight reduction hole adjacent to at least one stiffness strengthening portion, the local stiffness around the weight reduction hole can be improved. Moreover, at least one weight reduction hole functions to reduce weight, which can effectively reduce the weight of the inner panel of the back door, thereby reducing the weight of the entire back door assembly. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0022] Figure 1 It is a schematic structural diagram of the back door assembly provided in the embodiment of the present invention;

[0023] Figure 2 is Figure 1 a cross-sectional view taken along line A-A in

[0024] Figure 3 For Figure 1 the sectional view schematic diagram at section B-B in

[0025] Reference numerals:

[0026] 1 - Inner panel of the rear door, 11 - Weight reduction integrated structure, 111 - Weight reduction hole, 1111 - First weight reduction hole, 1112 - Second weight reduction hole, 112 - Stiffness strengthening part, 1121 - Reinforcing rib, 113 - Outer decoration installation through hole, 114 - Painting hanging hole, 115 - Outer panel support leg, 1151 - Support part, 1152 - Bending part, 116 - Flanging structure, 2 - Outer panel of the rear door, 21 - First installation part, 3 - Outer decoration panel of the rear door, 31 - Second installation part, 4 - Expanding glue, 5 - Fastener, 6 - Tool installation channel. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be described with reference to the accompanying drawings in the embodiments of the present invention.

[0028] The embodiments of the present invention are only used to explain the present invention, and are not used to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0029] Currently, the rear door generally includes an inner panel of the rear door and an outer panel of the rear door, and functional holes are usually provided on the inner panel of the rear door. However, the existing rear door is relatively heavy, and the stiffness at the hole opening of the inner panel of the rear door is insufficient. To solve the above problems, the embodiments of the present invention provide an inner panel of the rear door, a rear door assembly and a vehicle, and the above-mentioned inner panel of the rear door, rear door assembly and vehicle will be specifically described below.

[0030] In the first aspect, referring to Figure 1 , the inner panel 1 of the rear door provided by the embodiment of the present invention includes a weight reduction integrated structure 11, the weight reduction integrated structure 11 has a painting hanging hole 114, at least one stiffness strengthening part 112 and at least one weight reduction hole 111, and each weight reduction hole 111 is adjacent to at least one stiffness strengthening part 112; at least one stiffness strengthening part 112 is at least located above the painting hanging hole 114.

[0031] Among them, the weight reduction integrated structure 11 is located at the lower part of the inner panel 1 of the rear door. The number of the weight reduction holes 111 can be set according to actual needs, for example, set to one, two, three, etc. The shape of the weight reduction holes 111 can be set according to actual needs, for example, set to a polygon, a circle, an ellipse, etc. At least one weight reduction hole 111 plays a role in weight reduction, and can effectively reduce the weight of the inner panel 1 of the rear door, thereby reducing the weight of the entire rear door assembly.

[0032] The stiffness strengthening portion 112 can strengthen the stiffness by setting stiffeners, or by increasing the thickness of the stiffness strengthening portion 112, or by using a material with stronger stiffness. It should be noted that the stiffness strengthening portion 112 can be implemented by one or a combination of the above methods to strengthen the stiffness. The weight reduction hole 111 being adjacent to the stiffness strengthening portion 112 means that the position of the weight reduction hole 111 is next to the position of the stiffness strengthening portion 112 without other structures separating them. By arranging each weight reduction hole 111 to be adjacent to at least one stiffness strengthening portion 112, the local stiffness around the weight reduction hole 111 can be improved. An exterior trim mounting through hole 113 can be provided on one of the stiffness strengthening portions 112, and the exterior trim mounting through hole 113 is used for a tool for mounting the exterior trim of the back door 3 to pass through.

[0033] The painting jig includes an edge support portion, and the painting hanging hole 114 is used to cooperate with the edge support portion in the painting jig. During painting, the edge support portion in the painting jig cooperates with the painting hanging hole 114 to support the back door at a certain angle. Multiple vehicle models can share one painting jig. The shape of the painting hanging hole 114 can be circular.

[0034] If no strengthening structure is provided, the stiffness of the painting hanging hole 114 is weak, and it is prone to deformation when the painting hanging hole 114 is subjected to the supporting force of the painting jig. In this embodiment, at least one stiffness strengthening portion 112 is at least located above the painting hanging hole 114. Through the stiffness strengthening portion 112, the supporting ability of the edge of the painting hanging hole 114 can be improved, thereby enhancing the stiffness of the edge of the painting hanging hole 114, so that the painting hanging hole 114 is not easily deformed when it is subjected to the supporting force of the painting jig during the painting process, avoiding the insufficient stiffness caused by directly opening the painting hanging hole 114 at the edge of the weight reduction hole 111. Compared with not providing the stiffness strengthening portion 112 and directly opening the painting hanging hole 114 at the edge of the weight reduction hole 111, in this embodiment, the stiffness of the edge of the painting hanging hole 114 can be increased by about one time through the stiffness strengthening portion 112.

[0035] In an alternative embodiment of the present utility model, refer to Figure 1 and Figure 3, the weight reduction integrated structure 11 further includes an outer panel support leg 115. The outer panel support leg 115 is located at the edge of one of the weight reduction holes 111, and the outer panel support leg 115 is used to connect with the outer panel 2 of the back door. Among them, the connection method between the outer panel support leg 115 and the outer panel 2 of the back door can be bonding, welding, fastener connection, etc. In the existing back door assembly, the stiffness of the outer panel 2 of the back door is weak and it is easy to deform. In this embodiment, the outer panel support leg 115 supports the outer panel 2 of the back door, provides an additional support point, improves the local stiffness of the outer panel 2 of the back door, and thus improves the overall stiffness of the back door assembly. In addition, the outer panel support leg 115 is located at the edge of one of the weight reduction holes 111, which can enhance the structural strength around the weight reduction hole 111.

[0036] In an alternative embodiment of the present utility model, referring to Figure 3 , the outer panel support leg 115 includes a support portion 1151 and a bending portion 1152 that are connected to each other and arranged at an angle. The support portion 1151 is formed by folding the inner panel 1 of the back door towards the outer panel 2 of the back door, and the bending portion 1152 is used to bond with the outer panel 2 of the back door. Among them, the bending portion 1152 is a plate-like structure parallel to the corresponding portion of the outer panel 2 of the back door. Through the setting of the bending portion 1152, it is convenient to connect the outer panel support leg 115 with the outer panel 2 of the back door. The bending portion 1152 can be bonded to the outer panel 2 of the back door through the expansion adhesive 4, and a glue receiving groove for accommodating the expansion adhesive 4 can be provided on the bending portion 1152.

[0037] In an alternative embodiment of the present utility model, along the length direction of the stiffness strengthening portion 112, the distance between the painting hanging hole 114 and the stiffness strengthening portion 112 is greater than or equal to 0 mm and less than or equal to 5 mm. Among them, the length direction of the stiffness strengthening portion 112 intersects with the length direction of the inner panel 1 of the back door, and the length direction of the stiffness strengthening portion 112 can refer to Figure 1 the direction shown by the C arrow in

[0038] In an alternative embodiment of the present utility model, referring to Figure 1 and Figure 2 , the stiffness strengthening portion 112 includes at least one reinforcing rib 1121. The shape of the first cross-section of the reinforcing rib 1121 is a U-shaped, the first cross-section of the reinforcing rib 1121 is perpendicular to the extending direction of the reinforcing rib 1121, and the extending direction of the reinforcing rib 1121 is consistent with the length direction of the stiffness strengthening portion 112.

[0039] Among them, the opening of the U-shaped part can face the rear door outer panel 2. The shape of the first cross-section is a U-shaped reinforcing rib 1121, which can better improve the stiffness. The width of the stiffness strengthening part 112 can be set according to actual needs, for example, it can be set to 50 mm - 60 mm to ensure the stiffness strengthening effect. Refer to Figure 2 , the stiffness strengthening part 112 can only include one reinforcing rib 1121. At this time, the width and length of this one reinforcing rib 1121 are also the width and length of the stiffness strengthening part 112. When the stiffness strengthening part 112 only includes one reinforcing rib 1121 with a U-shaped cross-section, the stiffness strengthening part 112 includes a main body part and two side parts oppositely arranged on both sides of the main body part, and the exterior decoration mounting through hole 113 is opened on the main body part.

[0040] In an alternative embodiment of the present utility model, refer to Figure 1 , at least one weight-reducing hole 111 includes a first weight-reducing hole 1111 and a second weight-reducing hole 1112 arranged at intervals; the stiffness strengthening part 112 is located between the first weight-reducing hole 1111 and the second weight-reducing hole 1112, and the length direction of the stiffness strengthening part 112 intersects with the arrangement direction of the first weight-reducing hole 1111 and the second weight-reducing hole 1112.

[0041] Among them, the outer panel support leg 115 is located at the edge of the second weight-reducing hole 1112 far from the first weight-reducing hole 1111. The number of the stiffness strengthening parts 112 is one, and one stiffness strengthening part 112 is located above the painting hanging hole 114. The arrangement direction of the first weight-reducing hole 1111 and the second weight-reducing hole 1112 can be parallel to the length direction of the rear door inner panel 1. The arrangement direction of the first weight-reducing hole 1111 and the second weight-reducing hole 1112 can refer to Figure 1 the direction shown by the D arrow in

[0042] Along the width direction of the stiffness strengthening part 112, the distance between the exterior decoration mounting through hole 113 and the first weight-reducing hole 1111 can be set according to actual needs, for example, it can be set to 15 mm - 20 mm. Along the width direction of the stiffness strengthening part 112, the distance between the exterior decoration mounting through hole 113 and the second weight-reducing hole 1112 can be set according to actual needs, for example, it can be set to 15 mm - 20 mm.

[0043] In an alternative embodiment of the present utility model, refer to Figure 1 , a flanging structure 116 is provided on the circumferential edge of the weight-reducing hole 111, and the flanging structure 116 is formed by folding the rear door inner panel 1 towards the rear door outer panel 2. Through the setting of the flanging structure 116, the local stiffness of the rear door inner panel 1 can be strengthened.

[0044] In summary, the weight reduction integrated structure 11 provided in this embodiment includes a weight reduction hole 111, a stiffness strengthening portion 112, an exterior trim mounting through hole 113, a painting hanging hole 114, and an outer panel support leg 115. The weight reduction hole 111 serves to reduce weight, the stiffness strengthening portion 112 serves to strengthen the stiffness, the exterior trim mounting through hole 113 is for a tool for installing the exterior trim of the back door 3 to pass through, the painting hanging hole 114 is for cooperating with the edge support portion in the painting fixture, and the outer panel support leg 115 supports the back door outer panel 2. That is, the weight reduction integrated structure 11 integrates multiple functions of weight reduction, stiffness strengthening, allowing a tool for installing the exterior trim of the back door 3 to pass through, cooperating with the painting fixture, and supporting the back door outer panel 2.

[0045] In a second aspect, an embodiment of the present invention provides a back door assembly. Referring to Figure 2 and Figure 3 , the back door assembly includes a back door outer panel 2 and the back door inner panel 1 provided in the first aspect above. The back door inner panel 1 and the back door outer panel 2 are used to carry back door accessories, back door wiring harnesses, the exterior trim of the back door 3, etc. The back door wiring harness is a wiring harness that provides power supply functions for the back door lock, back door lights, etc. on the back door.

[0046] The back door inner panel 1 includes a weight reduction integrated structure 11. The weight reduction integrated structure 11 has a painting hanging hole 114, at least one stiffness strengthening portion 112, and at least one weight reduction hole 111. Each weight reduction hole 111 is adjacent to at least one stiffness strengthening portion 112; at least one stiffness strengthening portion 112 is at least located above the painting hanging hole 114. Since the back door assembly includes the above-mentioned back door inner panel 1, it also has the beneficial effects of the above-mentioned back door inner panel 1, which will not be elaborated here.

[0047] The weight reduction integrated structure 11 further includes an outer panel support leg 115. The outer panel support leg 115 is located at the edge of one of the weight reduction holes 111, and the outer panel support leg 115 is connected to the back door outer panel 2. The outer panel support leg 115 includes a support portion 1151 and a bending portion 1152 that are connected to each other and are arranged at an angle. The support portion 1151 is formed by folding the back door inner panel 1 towards the back door outer panel 2, and the bending portion 1152 is bonded to the back door outer panel 2.

[0048] The back door assembly further includes an exterior trim of the back door 3 connected to the back door outer panel 2; an exterior trim mounting through hole 113 may be provided on one of the stiffness strengthening portions 112 in the back door inner panel 1, and the exterior trim mounting through hole 113 is for a tool for installing the exterior trim of the back door 3 to pass through.

[0049] Among them, the shape of the exterior trim mounting through-hole 113 can be rectangular, waist-shaped, oval, etc., and the size of the exterior trim mounting through-hole 113 can be set according to the size of the tool so that the tool can pass through the exterior trim mounting through-hole 113 smoothly. For example, when the shape of the exterior trim mounting through-hole 113 is rectangular, the width of the exterior trim mounting through-hole 113 is greater than the corresponding size of the tool. The exterior trim mounting through-hole 113 and the side of the exterior trim mounting through-hole 113 facing the back door outer panel 2 form a tool mounting channel 6, and the tool can reach the mounting position of the back door exterior trim panel 3 through the tool mounting channel 6. Through the setting of the exterior trim mounting through-hole 113, the tool can pass through the back door inner panel 1 directly to reach the mounting position of the back door exterior trim panel 3, which is convenient for the installation of the back door exterior trim panel 3. In the existing situation, the exterior trim mounting points conflict with the sheet metal openings on the back door inner panel 1, resulting in uneven arrangement of the exterior trim mounting points. In this embodiment, the stiffness reinforcement part 112 provides a suitable position for the opening of the exterior trim mounting through-hole 113, which is conducive to the uniform arrangement of the exterior trim mounting points.

[0050] Referring to Figure 2 , the back door outer panel 2 includes a first mounting portion 21, and mounting holes for mounting the back door exterior trim panel 3 are formed on the first mounting portion 21. The position of the exterior trim mounting through-hole 113 corresponds to the position of the mounting hole, and the orthographic projection of the exterior trim mounting through-hole 113 on the back door outer panel 2 covers the mounting hole.

[0051] Among them, the back door exterior trim panel 3 is a plastic outer covering part at the lower part of the back door assembly. The back door outer panel 2 and the back door exterior trim panel 3 can be connected by fasteners 5, and the fasteners 5 can be bolts. The back door exterior trim panel 3 includes a second mounting portion 31, and threaded holes are formed on the second mounting portion 31. The fasteners 5 pass through the mounting holes on the first mounting portion 21 and are threadedly connected to the threaded holes on the second mounting portion 31. The number of both the first mounting portion 21 and the second mounting portion 31 is multiple, and the positions of the multiple second mounting portions 31 respectively correspond to the positions of the multiple first mounting portions 21.

[0052] The exterior trim mounting through-hole 113 and the side of the exterior trim mounting through-hole 113 facing the back door outer panel 2 form a tool mounting channel 6. When installing the back door exterior trim panel 3, first pick up the fastener 5 with the tool, and then make the tool and the fastener 5 pass through the tool mounting channel 6 to reach the mounting position of the back door exterior trim panel 3, and install and tighten the fastener 5 at the mounting position of the back door exterior trim panel 3.

[0053] In a third aspect, an embodiment of the present invention further provides a vehicle, including the back door assembly provided in the second aspect above.

[0054] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0055] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this text are only for the purpose of illustration.

[0056] Each embodiment in this specification is described in a related manner. The same or similar parts among the embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

[0057] The above is only the preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

[0058] The above has introduced the inner back door panel, the back door assembly and the vehicle provided by the present invention in detail. Specific examples are used in this text to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the structure and core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A rear door inner panel, characterized in that, Comprising a weight reduction integrated structure, the weight reduction integrated structure having a painting hanging hole, at least one stiffness strengthening portion, and at least one weight reduction hole; Each of the weight reduction holes is adjacent to at least one of the stiffness strengthening portions; At least one of the stiffness strengthening portions is at least located above the painting hanging hole.

2. The inner panel of the back door according to claim 1, characterized in that The weight reduction integrated structure further includes an outer panel support leg, the outer panel support leg being located at the edge of one of the weight reduction holes, and the outer panel support leg being used for connecting with the outer panel of the back door.

3. The inner panel of the rear door according to claim 2, characterized in that The outer panel support leg includes a support portion and a bending portion that are connected to each other and arranged at an angle, the support portion being formed by folding the inner panel of the back door towards the outer panel of the back door, and the bending portion being used for bonding with the outer panel of the back door.

4. The inner panel of the rear door according to any one of claims 1 to 3, characterized in that, Along the length direction of the stiffness strengthening portion, the distance between the painting hanging hole and the stiffness strengthening portion is greater than or equal to 0 mm and less than or equal to 5 mm; And / or, the stiffness strengthening portion includes at least one reinforcing rib, the shape of the first cross-section of the reinforcing rib being a capital C shape, the first cross-section of the reinforcing rib being perpendicular to the extending direction of the reinforcing rib, and the extending direction of the reinforcing rib being consistent with the length direction of the stiffness strengthening portion.

5. The inner panel of the rear door according to any one of claims 1 to 3, characterized in that At least one of the weight reduction holes includes a first weight reduction hole and a second weight reduction hole arranged at intervals; The stiffness strengthening portion is located between the first weight reduction hole and the second weight reduction hole, and the length direction of the stiffness strengthening portion intersects with the arranging direction of the first weight reduction hole and the second weight reduction hole.

6. The inner panel of the rear door according to any one of claims 1 to 3, characterized in that A flanging structure is provided on the circumferential edge of the weight reduction hole, and the flanging structure is formed by folding the inner panel of the back door towards the outer panel of the back door.

7. A rear door assembly, characterized in that, Comprising an outer panel of the back door and the inner panel of the back door according to any one of claims 1 to 6.

8. The back door assembly according to claim 7, characterized in that, The back door assembly further includes an outer trim panel of the back door connected to the outer panel of the back door; An outer trim mounting through hole is provided on one of the stiffness strengthening portions of the inner panel of the back door, and the outer trim mounting through hole is used for a tool for mounting the outer trim panel of the back door to pass through.

9. The back door assembly according to claim 8, characterized in that, The outer panel of the back door includes a first mounting portion, and a mounting hole for mounting the outer trim panel of the back door is provided on the first mounting portion, the position of the outer trim mounting through hole corresponding to the position of the mounting hole, and the orthographic projection of the outer trim mounting through hole on the outer panel of the back door covering.

10. A vehicle, characterized in that, Comprising the back door assembly according to any one of claims 7 to 9.

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