CN220410253U - Back door and vehicle - Google Patents

Abstract

The utility model discloses a back door and a vehicle, the back door comprises: a first stay bar installation position is arranged on the inner side of the back door inner plate; the stay bar reinforcing plate is arranged on the outer side of the back door inner plate and at least partially corresponds to the first stay bar installation position, and the longitudinal section of the stay bar reinforcing plate and the back door inner plate at the first stay bar installation position is of a first closed-loop structure with hollow inside. Therefore, by arranging the back door, the structural strength and the bending rigidity of the stay bar reinforcing plate can be improved, so that the self bearing property is effectively improved, the back door is prevented from being pulled to generate cracking deformation, and the quality is further improved.

Description

Back door and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a back door and a vehicle.

Background

In the related art, a spare tire is usually hung at the rear part of a side-opening type back door of an off-road vehicle, because the spare tire is heavy, a stepless speed change supporting rod is required to be additionally arranged for carrying out real-time positioning so as to ensure that the back door can be fixed at any position, but the weight of the vehicle door is usually transferred to the position of a support of a vehicle body end supporting rod through the supporting rod after the vehicle door is opened due to overlarge dead weight and camber of the vehicle door, if the structure of a reinforcing plate at the vehicle body end is poor, the metal plate at the position of a mounting point at the vehicle body end can be cracked when the vehicle door is opened and closed for a long time and high frequency, and the integral quality of the back door is influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a back door, which can improve the overall quality of the back door and avoid cracking deformation.

The utility model further proposes a vehicle.

The back door according to the first aspect of the present utility model includes: a back door inner plate, wherein a first stay bar installation position is arranged on the inner side of the back door inner plate; the stay bar reinforcing plate is arranged on the outer side of the back door inner plate and at least partially corresponds to the first stay bar installation position, and the longitudinal section of the stay bar reinforcing plate and the back door inner plate at the first stay bar installation position is of a first closed-loop structure with hollow inside.

Therefore, by arranging the back door, the structural strength and the bending rigidity of the stay bar reinforcing plate can be improved, so that the self bearing property is effectively improved, the back door is prevented from being pulled to generate cracking deformation, and the quality of the back door is improved.

In some examples of the utility model, in the first closed loop structure, an upper edge of the strut reinforcement panel and the back door inner panel are welded together, and a lower edge of the strut reinforcement panel and the back door inner panel are welded together.

In some examples of the utility model, the back door further comprises: the door lock reinforcing plate and the hinge reinforcing plate, the door lock reinforcing plate set up in the outside of back door inner panel just is located the one end of back door inner panel, the hinge reinforcing plate set up in the outside of back door inner panel just is located the other end of back door inner panel, the one end of vaulting pole reinforcing plate with the longitudinal section of door lock reinforcing plate overlap joint and two overlap joint department is inside hollow second closed loop structure, and/or the other end of vaulting pole reinforcing plate with the longitudinal section of hinge reinforcing plate overlap joint cooperation and two overlap joint department is inside hollow third closed loop structure.

In some examples of the utility model, in the second closed loop structure, an upper edge of one end of the stay reinforcement plate and an upper edge of an end of the door lock reinforcement plate are welded together, and a lower edge of one end of the stay reinforcement plate and a lower edge of an end of the door lock reinforcement plate are welded together; and/or in the third closed loop structure, the upper edge of the other end of the stay bar reinforcing plate is welded with the upper edge of the end part of the hinge reinforcing plate, and the lower edge of the other end of the stay bar reinforcing plate is welded with the lower edge of the end part of the hinge reinforcing plate.

In some examples of the utility model, the back door further comprises: the window frame reinforcing plate, the window frame reinforcing plate set up in the outside of back door inner panel just is located the top of vaulting pole reinforcing plate, the both ends of window frame reinforcing plate respectively with the lock reinforcing plate with the hinge reinforcing plate is connected, so that the window frame reinforcing plate the lock reinforcing plate the vaulting pole reinforcing plate with the hinge reinforcing plate is in the outside of back door inner panel forms fourth closed loop structure.

In some examples of the utility model, the back door further comprises: the outer plate support plate is arranged on the outer side of the back door inner plate and the outer side of the stay bar reinforcing plate, and is in lap joint with the stay bar reinforcing plate and is in a fifth closed loop structure with hollow inside.

In some examples of the utility model, in the fifth closed loop structure, an upper edge of the strut reinforcement plate and the outer plate support plate are welded together, and a lower edge of the strut reinforcement plate and the outer plate support plate are welded together.

In some examples of the present utility model, a second strut mounting site is provided on the strut reinforcement plate, the second strut mounting site corresponding to the first strut mounting site.

In some examples of the utility model, the outer plate support plate is provided with a relief notch at a location corresponding to the second stay mounting location.

A vehicle according to a second aspect of the utility model includes: the back door.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of a back door according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a back door section structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a further back door section according to an embodiment of the utility model;

FIG. 4 is a cross-sectional view of a fifth closed loop structure according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a second brace installation location in accordance with an embodiment of the utility model;

FIG. 6 is a schematic view of yet another tailgate section according to an embodiment of the utility model;

FIG. 7 is a cross-sectional view of a second closed loop structure according to an embodiment of the present utility model;

FIG. 8 is a cross-sectional view taken along the direction A-A in FIG. 7;

FIG. 9 is a cross-sectional view of a third closed loop structure according to an embodiment of the present utility model;

FIG. 10 is a cross-sectional view taken in the direction B-B of FIG. 9;

FIG. 11 is a cross-sectional view of a first closed loop structure according to an embodiment of the present utility model;

FIG. 12 is a cross-sectional view taken along the direction C-C in FIG. 11;

fig. 13 is a schematic view of a further back door section structure according to an embodiment of the present utility model.

Reference numerals:

100. a back door;

10. a back door inner panel; 11. a first stay bar mounting location; 12. a first closed loop structure;

20. door lock reinforcing plate; 21. a second closed loop structure; 30. a hinge reinforcing plate;

31. a third closed loop structure; 40. A brace bar reinforcing plate; 41. A second stay bar mounting location;

50. an outer plate support plate; 51. A fifth closed loop structure; 52. Avoiding the notch;

60. a brace bracket; 61. a clamping piece; 62. a fastener; 70. and a window frame reinforcing plate.

Detailed Description

Embodiments of the present utility model will be described in detail below, with reference to the accompanying drawings, which are exemplary.

The following describes the back door 100 according to the embodiment of the present utility model with reference to fig. 1 to 13, which can improve the overall quality of the back door 100 and prevent the back door from cracking and deforming.

As shown in conjunction with fig. 1, 2, 6 and 10, a back door 100 according to an embodiment of the first aspect of the present utility model includes: the inner side of the back door inner plate 10 is provided with a first stay bar installation position 11, the stay bar reinforcing plate 40 is arranged on the outer side of the back door inner plate 10 and at least partially corresponds to the first stay bar installation position 11, and the longitudinal sections of the stay bar reinforcing plate 40 and the back door inner plate 10 at the first stay bar installation position 11 are of a first closed loop structure 12 with hollow inside.

Specifically, at least part of the strut reinforcement plate 40 is configured as the first closed loop structure 12 with hollow interior at the first strut installation site 11 located inside and outside the back door inner panel 10 (i.e., in the longitudinal direction of the whole vehicle, the strut reinforcement plate 40 is located at the rear side of the back door inner panel 10), so that the spatial mode at the site can be increased, the bending and torsion resistance at the first strut installation site 11 is increased, the problem that the strut is easily pulled to generate cracking deformation at the site is avoided, and the overall quality of the back door 100 is further improved. Wherein, the first stay bar installation position 11 for installing stay bars is arranged at the middle part of the inner side of the back door inner plate 10, so that the stress on the two lateral sides of the back door inner plate 10 bearing the stay bars can be ensured to be uniform, thereby improving the structural reliability of the back door inner plate.

Therefore, by arranging the back door 100, the structural strength and the bending rigidity of the stay bar reinforcing plate 40 can be improved, so that the self-bearing property is effectively improved, the back door 100 is prevented from being pulled to generate cracking deformation, and the quality of the back door 100 is further improved.

Specifically, as shown in connection with fig. 1, 11 and 12, in the first closed loop structure 12, the upper edge of the stay reinforcement plate 40 and the inner back door panel 10 are welded together, and the lower edge of the stay reinforcement plate 40 and the inner back door panel 10 are welded together. In the first closed loop structure 12, the upper edge of the stay bar reinforcing plate 40 is correspondingly welded with the upper edge of the back door inner plate 10, and the lower edge of the stay bar reinforcing plate 40 is correspondingly welded with the lower edge of the back door inner plate 10, so that the stay bar reinforcing plate 40 and the back door inner plate 10 can be respectively and firmly connected at the upper and lower sides of the lap joint position, and compared with other connection modes, such as bonding, screwing and the like, the welding connection mode is adopted, so that the structural connection rigidity is larger, the sealing performance is better, and the connection firmness and reliability of the stay bar reinforcing plate 40 and the back door inner plate 10 can be improved.

According to some alternative embodiments of the present utility model, as shown in fig. 1 and 6-10, the back door 100 further includes a door lock reinforcement plate 20 and a hinge reinforcement plate 30, the door lock reinforcement plate 20 is disposed at an outer side of the back door inner panel 10, the door lock reinforcement plate 20 is disposed at one end of the back door inner panel 10, the hinge reinforcement plate 30 is disposed at an outer side of the back door inner panel 10, the hinge reinforcement plate 30 is disposed at the other end of the back door inner panel 10, one end of the stay reinforcement plate 40 is in overlap fit with the door lock reinforcement plate 20, a longitudinal section of the stay reinforcement plate 40 where the door lock reinforcement plate 20 is overlapped is a second closed loop structure 21 having a hollow interior, and/or the other end of the stay reinforcement plate 40 is in overlap fit with the hinge reinforcement plate 30, and the longitudinal section of the stay reinforcement plate 40 where the door lock reinforcement plate 20 is overlapped is a third closed loop structure 31 having a hollow interior.

Specifically, the back door inner panel 10 is disposed inside the door lock reinforcing plate 20 and the hinge reinforcing plate 30, in the longitudinal direction of the entire vehicle, that is, the back door inner panel 10 is disposed at the front sides of the door lock reinforcing plate 20 and the hinge reinforcing plate 30, and the door lock reinforcing plate 20 and the hinge reinforcing plate 30 are disposed at both ends of the back door inner panel 10 in the transverse direction of the entire vehicle, respectively, the stay reinforcing plate 40 at the rear side of the back door inner panel 10 is in overlap fit with the door lock reinforcing plate 20 and the hinge reinforcing plate 30 at both adjacent ends thereof, respectively, so that the back door inner panel 10, the door lock reinforcing plate 20, the hinge reinforcing plate 30 and the stay reinforcing plate 40 are connected as one body, and the weight and the spatial mode of each other are increased, and a stress transmission channel is formed to the back door inner panel 10 from a plurality of directions, thereby increasing the structural strength and the bending torsion resistance of the back door 100 as a whole; one end of the stay bar reinforcing plate 40 is in lap joint with the door lock reinforcing plate 20, and the longitudinal section of the lap joint is formed into a second closed loop structure 21 with hollow inside, so that the space mode of the lap joint of the stay bar reinforcing plate 40 and the door lock reinforcing plate 20 can be increased, and the bending and torsion rigidity of each stay bar reinforcing plate is increased; the other end of the stay bar reinforcing plate 40 is in overlap joint with the hinge reinforcing plate 30, and the longitudinal section of the overlap joint is formed into a third closed loop structure 31 with hollow inside, so that the space mode of the overlap joint of the stay bar reinforcing plate 40 and the hinge reinforcing plate 30 can be increased, the bending and torsion rigidity of each stay bar reinforcing plate is increased, the problem that the back door 100 is easy to twist and deform is avoided, and the overall quality of the back door 100 is improved.

According to some alternative embodiments of the present utility model, as shown in fig. 1, 6-8, in the second closed loop structure 21, an upper edge of one end of the stay reinforcement plate 40 is welded to an upper edge of an end of the door lock reinforcement plate 20, and a lower edge of one end of the stay reinforcement plate 40 is welded to a lower edge of an end of the door lock reinforcement plate 20; and/or in the third closed-loop structure 31, the other end upper edge of the stay reinforcement plate 40 and the end upper edge of the hinge reinforcement plate 30 are welded together, and the other end lower edge of the stay reinforcement plate 40 and the end lower edge of the hinge reinforcement plate 30 are welded together.

Specifically, as shown in fig. 1 and fig. 6-8, in the second closed loop structure 21, the upper edge of one end of the stay bar reinforcing plate 40 is correspondingly welded to the upper edge of the end of the door lock reinforcing plate 20, and the lower edge of one end of the stay bar reinforcing plate 40 is correspondingly welded to the lower edge of the end of the door lock reinforcing plate 20, so that the upper and lower sides of the lap joint position of the stay bar reinforcing plate 40 and the door lock reinforcing plate 20 can be respectively and firmly connected, and compared with other connection modes, such as bonding, screwing and the like, the welding connection mode is adopted, so that the structural connection rigidity is higher, the sealing performance is better, and the connection firmness and reliability of the stay bar reinforcing plate 40 and the door lock reinforcing plate 20 can be improved.

Further, as shown in fig. 1, 6, 9 and 10, in the third closed-loop structure 31, the upper edge of the other end of the stay bar reinforcing plate 40 is welded with the upper edge of the end of the hinge reinforcing plate 30, and the lower edge of one end of the stay bar reinforcing plate 40 is welded with the lower edge of the end of the hinge reinforcing plate 30, so that the upper and lower sides of the lap joint position of the stay bar reinforcing plate 40 and the hinge reinforcing plate 30 are respectively connected firmly, and compared with other connection modes, such as bonding, screwing and the like, the structure connection rigidity is larger and the sealing performance is better by adopting the welding connection mode, thereby improving the connection firmness and reliability of the stay bar reinforcing plate 40 and the hinge reinforcing plate 30.

Specifically, as shown in connection with fig. 13, the back door 100 further includes a window frame reinforcing plate 70, the window frame reinforcing plate 70 being disposed at the outer side of the back door inner panel 10, and the window frame reinforcing plate 70 being located above the stay reinforcing plate 40, both ends of the window frame reinforcing plate 70 being connected to the door lock reinforcing plate 20 and the hinge reinforcing plate 30, respectively, such that the window frame reinforcing plate 70, the door lock reinforcing plate 20, the stay reinforcing plate 40 and the hinge reinforcing plate 30 form a fourth closed loop structure at the outer side of the back door inner panel 10. The fourth closed-loop structure on the outer side of the back door inner panel 10 forms a closed-loop integral structure in which the window frame reinforcing plate 70, the door lock reinforcing plate 20, the stay bar reinforcing plate 40 and the hinge reinforcing plate 30 are connected with each other in the circumferential direction, so that the weight and the spatial mode of each other among the window frame reinforcing plate 70, the door lock reinforcing plate 20, the stay bar reinforcing plate 40 and the hinge reinforcing plate 30 can be further increased, the integral structural strength of the back door 100 and the bending and torsion resistance of the back door can be further improved, the problem that the back door 100 is easily pulled by the stay bar to crack and deform is avoided, and the integral quality of the back door 100 is further improved.

According to some alternative embodiments of the present utility model, as shown in fig. 1, 2 and 5, the strut reinforcement plate 40 is provided with a second strut mounting site 41, and the second strut mounting site 41 corresponds to the first strut mounting site 11. Specifically, the strut reinforcement plate 40 is provided with the second strut installation position 41 corresponding to the first strut installation position 11 on the inner back door panel 10, so that the strut reinforcement plate 40 and the inner back door panel 10 together play a role in installing and fixing the strut, and the support degree of the back door 100 to the strut can be enhanced, thereby reducing the risk of cracking and deformation caused by the back door 100 being pulled by the strut, and further improving the overall quality of the back door 100.

According to some alternative embodiments of the present utility model, as shown in connection with fig. 1, 3, 4 and 12, the back door 100 further comprises: the outer panel support plate 50, the outer panel support plate 50 sets up in the outside of back door inner panel 10 and brace reinforcement plate 40, and outer panel support plate 50 and brace reinforcement plate 40 overlap joint cooperation, and the vertical cross section of outer panel support plate 50 and brace reinforcement plate 40 two is inside hollow fifth closed loop structure 51 in first brace installation position 11 department.

Specifically, the outer plate support plate 50 is disposed on the outer side of the strut reinforcement plate 40, in the longitudinal direction along the whole vehicle, that is, the outer plate support plate 50 is disposed on the rear side of the strut reinforcement plate 40, the longitudinal section of the outer plate support plate 50 and the strut reinforcement plate 40 at the rear side of the back door inner plate 10 is configured into a fifth hollow closed loop structure 51 at the overlapping position, and the fifth closed loop structure 51 and the first closed loop structure 12 form a double-layer annular structure which is overlapped front and back in the longitudinal direction, so that the weight and the space mode of the outer plate support plate 50, the strut reinforcement plate 40 and the back door inner plate 10 can be further increased, the overall structural strength of the back door 100 and the bending rigidity at the first strut installation position 11 can be further improved, the problem that the back door 100 is easily pulled by a strut to generate cracking deformation is avoided, and the overall quality of the back door 100 is further improved. Wherein the edge of the outer panel support plate 50 is constructed in a "table" shape and is fastened to the inner panel, so that the overall rigidity of the back door 100 can be improved, thereby improving the structural reliability of the back door 100.

Alternatively, as shown in connection with fig. 1, 3, and 4, in the fifth closed-loop structure 51, the upper edge of the stay reinforcement plate 40 is welded to the outer plate support plate 50, and the lower edge of the stay reinforcement plate 40 is welded to the outer plate support plate 50. In the fifth closed-loop structure 51, the upper edge of the stay bar reinforcing plate 40 is correspondingly welded with the upper edge of the outer plate supporting plate 50, and the lower edge of the stay bar reinforcing plate 40 is correspondingly welded with the lower edge of the outer plate supporting plate 50, so that the upper and lower sides of the lap joint position of the stay bar reinforcing plate 40 and the outer plate supporting plate 50 can be respectively and firmly connected, and compared with other connection modes, such as bonding, screwing and the like, the structure connection rigidity is larger and the sealing performance is better by adopting the welding connection mode, thereby improving the connection firmness and reliability of the stay bar reinforcing plate 40 and the outer plate supporting plate 50.

Further, as shown in fig. 2 and 5, the outer panel support plate 50 is provided with the escape notch 52 at the position corresponding to the second stay attachment position 41. Wherein, the outer plate support plate 50 is provided with the avoidance gap 52 at the position corresponding to the second stay bar mounting position 41, so that on the basis that the outer plate support plate 50 is provided with a support for the second stay bar mounting position 41, the position is convenient to be found in advance when the stay bar is mounted, and the assembly fault tolerance of the outer plate support plate 50 can be improved, thereby improving the assembly convenience of the back door 100.

According to some alternative embodiments of the present utility model, as shown in connection with fig. 1, 2 and 5, the back door 100 further comprises: the stay bar support 60, the joint piece 61 and at least two fastener 62, at least two fastener 62 wear to establish stay bar support 60 and first stay bar installation site 11, and joint piece 61 sets up in first stay bar installation site 11, and joint piece 61 and stay bar support 60 joint cooperation moreover, joint piece 61 and at least two fastener 62 interval setting moreover. Specifically, the stay bracket 60 is used for installing and fixing a stay, the clamping piece 61 and at least two fasteners 62 are arranged at intervals in the transverse direction, the clamping piece 61 is matched with the stay bracket 60, and the at least two fasteners 62 penetrate and fix the stay bracket 60 and the first stay installation position 11 on the back door inner plate 10 together, so that the stay bracket 60 and the back door inner plate 10 form a firm whole, compared with the traditional installation mode for fixing the stay bracket, the clamping piece 61 increases the connection fixing point of the stay bracket 60 and the back door 100, the connection strength of the stay bracket 60 and the back door inner plate 10 and the mechanism rigidity of the installation part are further increased, and the connection firmness and reliability between the stay bracket 60 and the back door 100 are improved.

The vehicle according to the second aspect of the present utility model includes the back door 100 of the above embodiment, and thus the vehicle having the back door 100 can reduce the risk of deformation and cracking caused by the back door 100 being pulled by the stay, and at the same time, improve the structural strength and bending and torsion resistance of the stress weak area on the back door 100, thereby improving the reliability and practicality of the vehicle.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A back door, comprising:

a back door inner plate, wherein a first stay bar installation position is arranged on the inner side of the back door inner plate;

the stay bar reinforcing plate is arranged on the outer side of the back door inner plate and at least partially corresponds to the first stay bar installation position, and the longitudinal section of the stay bar reinforcing plate and the back door inner plate at the first stay bar installation position is of a first closed-loop structure with hollow inside.

2. The tailgate of claim 1 wherein in the first closed loop configuration, an upper edge of the strut reinforcement panel is welded to the tailgate inner panel and a lower edge of the strut reinforcement panel is welded to the tailgate inner panel.

3. The back door of claim 1, further comprising: the door lock reinforcing plate and the hinge reinforcing plate, the door lock reinforcing plate set up in the outside of back door inner panel just is located the one end of back door inner panel, the hinge reinforcing plate set up in the outside of back door inner panel just is located the other end of back door inner panel, the one end of vaulting pole reinforcing plate with the longitudinal section of door lock reinforcing plate overlap joint and two overlap joint department is inside hollow second closed loop structure, and/or the other end of vaulting pole reinforcing plate with the longitudinal section of hinge reinforcing plate overlap joint cooperation and two overlap joint department is inside hollow third closed loop structure.

4. A back door according to claim 3, wherein in the second closed loop structure, an upper end edge of the stay reinforcement plate and an upper end edge of the door lock reinforcement plate are welded together, and a lower end edge of the stay reinforcement plate and an lower end edge of the door lock reinforcement plate are welded together; and/or

In the third closed loop structure, the upper edge of the other end of the stay bar reinforcing plate is welded with the upper edge of the end part of the hinge reinforcing plate, and the lower edge of the other end of the stay bar reinforcing plate is welded with the lower edge of the end part of the hinge reinforcing plate.

5. A back door according to claim 3, further comprising: the window frame reinforcing plate, the window frame reinforcing plate set up in the outside of back door inner panel just is located the top of vaulting pole reinforcing plate, the both ends of window frame reinforcing plate respectively with the lock reinforcing plate with the hinge reinforcing plate is connected, so that the window frame reinforcing plate the lock reinforcing plate the vaulting pole reinforcing plate with the hinge reinforcing plate is in the outside of back door inner panel forms fourth closed loop structure.

6. The back door of claim 1, further comprising: the outer plate support plate is arranged on the outer side of the back door inner plate and the outer side of the stay bar reinforcing plate, and is in lap joint with the stay bar reinforcing plate and is in a fifth closed loop structure with hollow inside.

7. The tailgate according to claim 6 wherein in the fifth closed loop structure, an upper edge of the stay reinforcement plate is welded to the outer panel support plate and a lower edge of the stay reinforcement plate is welded to the outer panel support plate.

8. The back door of claim 6, wherein the brace reinforcement plate is provided with a second brace installation location, the second brace installation location corresponding to the first brace installation location.

9. The back door of claim 8, wherein the outer support panel is provided with a relief notch at a location corresponding to the second stay installation location.

10. A vehicle, characterized by comprising: the back door of any of claims 1-9.