Tail door frame and vehicle

Abstract

The tail door frame comprises a first stand column, a second stand column, a first stand column installation hinge and a second stand column installation lock catch, the first stand column comprises a first reinforcing assembly and at least two hinge installation parts, the first reinforcing assembly comprises a first reinforcing piece and a second reinforcing piece, the first reinforcing piece is provided with a first reinforcing cavity, and the second reinforcing piece is provided with a second reinforcing cavity; the second reinforcing piece is provided with a second reinforcing cavity, and the reinforcing cavity extends in the height direction of the tail door frame and reinforces the at least two hinge installation parts at the same time. The first reinforcing piece is located on one side of the second reinforcing piece in the thickness direction of the tail door frame. Through the design, the strength of the first stand column and the stability of hinge installation can be improved, and the NVH performance can be improved.

Description

Technical Field

[0001] This application relates to the automotive field, and more particularly to a tailgate frame and vehicle. Background Technology

[0002] With the development of technology, automobiles have become a daily means of transportation for people. The tailgate of a vehicle can be opened to place items. During the opening and closing of the tailgate and during vehicle movement, the tailgate hinges are subjected to considerable forces, which can easily cause noise and vibration, affecting NVH performance, and also making them prone to damage. Utility Model Content

[0003] This application provides a tailgate frame and a vehicle for improving the modal and NVH performance of the tailgate frame.

[0004] This application provides a tailgate frame, which includes a first column and a second column. The first column and the second column are located on both sides of the tailgate frame along the width direction of the tailgate frame. The first column is used to install a hinge, and the second column is used to install a latch.

[0005] The first column includes a first reinforcing component and at least two hinge mounting portions. The first reinforcing component is used to reinforce the hinge mounting portions. The first reinforcing component includes a first reinforcing member and a second reinforcing member. The first reinforcing member has a first reinforcing cavity that extends along the height direction of the tailgate frame. The second reinforcing member has a second reinforcing cavity that extends along the height direction of the tailgate frame. Along the thickness direction of the tailgate frame, the first reinforcing member is located on one side of the second reinforcing member.

[0006] In one possible implementation, the first reinforcing member includes a first body portion, a second body portion, and a third body portion, wherein the second body portion and the third body portion are located on opposite sides of the first body portion, and the second body portion and the third body portion have an angle with the first body portion to form the first reinforcing cavity.

[0007] The second reinforcing member includes a fourth body portion, a fifth body portion, and a sixth body portion. The fifth body portion and the sixth body portion are located on opposite sides of the fourth body portion, and the fifth body portion and the sixth body portion have an angle with the fourth body portion to form the second reinforcing cavity.

[0008] The second body portion and the third body portion are located on the side of the first body portion away from the second reinforcing member, and the fourth body portion and the fifth body portion are connected to the first reinforcing member.

[0009] In one possible implementation, the first column includes a first outer plate and a rear inner plate, the first outer plate being located on the side of the second reinforcement away from the first reinforcement, and the rear inner plate being located on the side of the first reinforcement away from the second reinforcement.

[0010] In one possible implementation, the first outer panel and the rear inner panel are connected to form a third reinforcing cavity, and at least a portion of the third reinforcing cavity is located on one side of the first reinforcing component along the width direction of the tailgate frame.

[0011] In one possible implementation, the second column is provided with a locking mounting part and a second reinforcing component, the second reinforcing component having at least one fourth reinforcing cavity, the second reinforcing component being used to reinforce the locking mounting part.

[0012] In one possible implementation, the second reinforcing component includes a third reinforcing member, a fourth reinforcing member, and a fifth reinforcing member;

[0013] The third reinforcing member includes a first connecting part and a second connecting part that are connected to each other, and there is an included angle between the first connecting part and the second connecting part.

[0014] The fourth reinforcing member includes a third connecting part and a fourth connecting part that are connected to each other, and the third connecting part and the fourth connecting part have an included angle;

[0015] The fifth reinforcing member includes a fifth connecting part and a sixth connecting part that are connected to each other, and the fifth connecting part and the sixth connecting part have an included angle;

[0016] The first connecting part is connected to the third connecting part, the fifth connecting part is connected to the second connecting part, the sixth connecting part is connected to the fourth connecting part, the second connecting part and the fourth connecting part are located on opposite sides of the fourth reinforcing cavity, and the third connecting part and the fifth connecting part are located on opposite sides of the fourth reinforcing cavity.

[0017] In one possible implementation, the fifth connecting portion includes a first flange, and the fifth connecting portion is connected to the second connecting portion via the first flange.

[0018] In one possible implementation, the second column includes a second outer plate and a column reinforcing plate. The second outer plate is connected to the second reinforcing component, and at least a portion of the second outer plate and the second reinforcing component are used to form a first cavity. The column reinforcing plate is located on the side of the second outer plate away from the second reinforcing component, and at least a portion of the column reinforcing plate and at least a portion of the second outer plate form a second cavity.

[0019] The sixth connecting part includes a second flange, which is connected to the second outer plate, and the first connecting part and / or the third connecting part are connected to the second outer plate.

[0020] In one possible implementation, the second reinforcing component is provided with at least one of a limiter mounting portion and a taillight mounting portion.

[0021] This application also provides a vehicle, which includes a tailgate frame, wherein the tailgate frame is any of the tailgate frames described above.

[0022] This application provides a tailgate frame and a vehicle. The tailgate frame includes a first pillar and a second pillar. A hinge is mounted on the first pillar, and a latch is mounted on the second pillar. The first pillar includes a first reinforcing component and at least two hinge mounting portions. The first reinforcing component includes a first reinforcing member and a second reinforcing member. The first reinforcing member has a first reinforcing cavity, and the second reinforcing member has a second reinforcing cavity. The reinforcing cavities extend along the height direction of the tailgate frame and simultaneously reinforce the at least two hinge mounting portions. Along the thickness direction of the tailgate frame, the first reinforcing member is located on one side of the second reinforcing member. This design improves the strength of the first pillar and the stability of the hinge mounting, which is beneficial for improving NVH performance. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the tailgate frame provided in an embodiment of this application;

[0025] Figure 2 The first reinforcing component provided in the embodiments of this application;

[0026] Figure 3 A cross-sectional schematic diagram of position AA of the first column provided in an embodiment of this application;

[0027] Figure 4 A cross-sectional schematic diagram of the BB position of the first column provided in an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the structure of the first reinforcing member provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the second reinforcing member provided in the embodiments of this application;

[0030] Figure 7 A schematic cross-sectional view of the second column provided in an embodiment of this application;

[0031] Figure 8 A schematic diagram of the second reinforcing component provided in an embodiment of this application;

[0032] Figure 9 This is a schematic diagram of the structure of the third reinforcing member provided in the embodiments of this application;

[0033] Figure 10 This is a schematic diagram of the structure of the fourth reinforcing member provided in the embodiments of this application;

[0034] Figure 11 This is a schematic diagram of the structure of the fifth reinforcing member provided in an embodiment of this application.

[0035] Figure Labels

[0036] 1-First column;

[0037] 11-First Reinforcing Component;

[0038] 111 - First reinforcing component;

[0039] 111a - First reinforcing cavity;

[0040] 111b - First Body Section;

[0041] 111c - Second body section;

[0042] 111d - Third Body Section;

[0043] 112 - Second reinforcing member;

[0044] 112a - Second reinforcing cavity;

[0045] 112b - Fourth Body Section;

[0046] 112c - Fifth Body Section;

[0047] 112d - Sixth Body Section;

[0048] 12-Hinge mounting section;

[0049] 13-First outer panel;

[0050] 14-Rear side inner panel;

[0051] 15-Third reinforcing cavity;

[0052] 2-Second column;

[0053] 21-Second Reinforcing Component;

[0054] 211-Fourth reinforcing cavity;

[0055] 212 - Third reinforcing component;

[0056] 212a - First connecting part;

[0057] 212b - Second connecting part;

[0058] 213 - Fourth reinforcing component;

[0059] 213a - Third connecting part;

[0060] 213b - Fourth connecting part;

[0061] 214 - Fifth reinforcing component;

[0062] 214a - Fifth connecting part;

[0063] 214b - Sixth connecting part;

[0064] 214c - First Flip Edge;

[0065] 214d - Second flanging;

[0066] 22-Lock mounting part;

[0067] 23-Second outer panel;

[0068] 24-Column reinforcement plate;

[0069] 25 - Limiter mounting section;

[0070] 26 - Taillight mounting section;

[0071] 27-First cavity;

[0072] 28 - Second cavity. Detailed Implementation

[0073] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0074] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0075] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0076] It should be understood that the term "and / or" used herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0077] As Figure 1 shown, an embodiment of the present application provides a rear door frame, which is applied to a vehicle and can install the rear door of the vehicle. The rear door of the vehicle can be a side-opening rear door. The rear door frame includes a first upright post 1 and a second upright post 2. The first upright post 1 is used to install a hinge, and the second upright post 2 is used to install a lock. The rear door is installed on the rear door frame through the hinge, and the lock is used to lock and unlock the rear door. The first upright post 1 and the second upright post 2 can serve as the D-pillar of the vehicle. The first upright post 1 is provided with a first strengthening component 11. The rear door is installed on the rear door frame through at least two hinges. The first upright post 1 includes at least two hinge installation parts 12. The first strengthening component 11 can simultaneously strengthen the installation positions of each hinge, thereby improving the stability of the hinge installation. As Figure 2 shown, the first strengthening component 11 includes a first strengthening member 111 and a second strengthening member 112. As Figure 3 and Figure 4 shown, the first strengthening member 111 has a first strengthening cavity 111a, and the second strengthening member 112 has a second strengthening cavity 112a. Both the first strengthening cavity 111a and the second strengthening cavity 112a extend along the height direction of the rear door frame. Along the thickness direction of the rear door frame (usually approximately the direction from the head of the vehicle to the tail or from the tail of the vehicle to the head), the first strengthening member 111 is located on one side of the second strengthening member 112, and the first strengthening cavity 111a is located on one side of the second strengthening cavity 112a along the thickness direction of the rear door frame.

[0078] Through such a design, an approximately "day" - shaped strengthening structure can be formed in the first upright post 1 through the first strengthening cavity 111a and the second strengthening cavity 112a, thereby improving the stability of the hinge installation. Moreover, the first strengthening cavity 111a and the second strengthening cavity 112a extend along the height direction of the rear door frame, which can improve the vertical stiffness of the rear door frame. The first strengthening cavity 111a and the second strengthening cavity 112a can respectively form continuous cavities in the height direction of the rear door frame, so that the first strengthening cavity 111a and the second strengthening cavity 112a can simultaneously strengthen each hinge installation part 12, which is beneficial to improving the modal and NVH performance of the rear door frame. Compared with the scheme of separately setting strengthening structures at different hinge installation positions, the scheme provided by the embodiment of the present application has better integrity, and at the same time, the number of parts can be reduced, thereby reducing the assembly difficulty, being beneficial to improving the production beat, and improving the relative position accuracy.

[0079] As Figure 3 and Figure 4As shown, in one possible embodiment, the cross-sections of the first reinforcing member 111 and the second reinforcing member 112 can be approximately U-shaped. The first reinforcing member 111 includes a first body portion 111b, a second body portion 111c, and a third body portion 111d. The second body portion 111c and the third body portion 111d are located on opposite sides of the first body portion 111b, and both the second body portion 111c and the third body portion 111d have an angle with the first body portion 111b. The region between the first body portion 111b, the second body portion 111c, and the third body portion 111d is used to form a first reinforcing cavity 111a. The second reinforcing member 112 includes a fourth body portion 112b, a fifth body portion 112c, and a sixth body portion 112d. The fifth body portion 112c and the sixth body portion 112d are located on opposite sides of the fourth body portion 112b and form an angle with the fourth body portion 112b. The region between the fourth body portion 112b, the fifth body portion 112c, and the sixth body portion 112d is used to form a second reinforcing cavity 112a. The second body portion 111c and the third body portion 111d are located on the side of the first body portion 111b away from the second reinforcing member 112. The fourth body portion 112b and the fifth body portion 112c are connected to the first reinforcing member 111.

[0080] This design allows the first reinforcing member 111 and the second reinforcing member 112 to form the first reinforcing cavity 111a and the second reinforcing cavity 112a from three sides, respectively. The first body portion 111b can be located at the opening of the second reinforcing cavity 112a and used to block at least part of the opening of the second reinforcing cavity 112a, so that the second reinforcing cavity 112a forms a nearly closed cavity. The first reinforcing member 111 can be connected to other components of the first column 1 and blocks at least part of the opening of the first reinforcing cavity 111a. This design simplifies the structure of the first reinforcing member 111 and the second reinforcing member 112, reduces their volume, and helps to reduce the weight and cost of the first reinforcing assembly 11.

[0081] like Figure 4 As shown, in one possible implementation, the first column 1 includes a first outer plate 13 and a rear inner plate 14. The first outer plate 13 is located on the side of the second reinforcing member 112 away from the first reinforcing member 111, and the rear inner plate 14 is located on the side of the first reinforcing member 111 away from the second reinforcing member 112.

[0082] The rear side inner panel 14 can block the opening of the first reinforcing cavity 111a so that the first reinforcing cavity 111a can form a nearly closed cavity, thereby improving the structural strength of the first reinforcing member 111 and improving the stability of the hinge installation.

[0083] It should be noted here that the first reinforcing cavity 111a and the second reinforcing cavity 112a form an approximately closed cavity through their mutual cooperation and cooperation with other components. This does not mean that the first reinforcing cavity 111a and the second reinforcing cavity 112a are completely airtight, but at least part of them can form a continuous structure along the circumferential direction of the cavity. Corresponding mounting holes, weight-reducing holes, avoidance holes and other structures can be provided on the wall surface of the cavity according to requirements.

[0084] By making the components of the first reinforcing component 11 cooperate with the components of the first upright column 1, the volume of the first reinforcing component 11 can be reduced, thereby saving costs and better meeting the actual use requirements. The first outer panel 13, the rear side inner panel 14 and the first reinforcing component 11 can form at least three reinforcing cavities in the first upright column 1. The three reinforcing cavities can be approximately distributed in a "pin" shape. Through such a design, a honeycomb-shaped cavity structure can be formed. When the hinge is stressed, the force can be transmitted through the first upright column 1, which can further improve the structural strength of the first upright column 1 and enhance the stability of the hinge installation.

[0085] The structures of the first reinforcing member 111 and the second reinforcing member 112 are as Figure 5 and Figure 6 shown. During the actual production process, corresponding mounting holes, reinforcing ribs, weight-reducing holes and other structures can be provided on the first reinforcing member 111 and the second reinforcing member 112 according to actual use requirements.

[0086] In a possible implementation manner, the first upright column 1 may further include a lower corner plate. The lower corner plate is located on the side of the first reinforcing member 111 away from the second reinforcing member 112 and is connected to the second reinforcing member 112.

[0087] As Figure 7 shown, in a possible implementation manner, the second upright column 2 is provided with a latch mounting portion 22 and a second reinforcing component 21. The second reinforcing component 21 has at least one fourth reinforcing cavity 211. The second reinforcing component 21 is used to strengthen the latch mounting portion 22.

[0088] By providing the second reinforcing component 21, the structural strength of the latch mounting portion 22 can be improved, thereby improving the stability of the latch installation and being beneficial to improving the NVH performance of the vehicle.

[0089] As Figure 7As shown, in one possible implementation, the second reinforcing component 21 includes a third reinforcing member 212, a fourth reinforcing member 213, and a fifth reinforcing member 214. The third reinforcing member 212 includes a first connecting portion 212a and a second connecting portion 212b that are interconnected, forming an angle between them. The first reinforcing member 211 may be approximately L-shaped. The fourth reinforcing member 213 includes a third connecting portion 213a and a fourth connecting portion 213b that are interconnected, forming an angle between them. At least a portion of the fourth reinforcing member 213 is approximately L-shaped. The fifth reinforcing member 214 includes a fifth connecting portion 214a and a sixth connecting portion 214b, forming an angle between them. At least a portion of the fifth reinforcing member 214 is approximately L-shaped. The first connecting part 212a is connected to the third connecting part 213a, the fifth connecting part 214a is connected to the second connecting part 212b, and the sixth connecting part 214b is connected to the fourth connecting part 213b. The third reinforcing member 212, the fourth reinforcing member 213, and the fifth reinforcing member 214 form a third reinforcing cavity 15. The second connecting part 212b and the fourth connecting part 213b are located on opposite sides of the fourth reinforcing cavity 211, and the third connecting part 213a and the fifth connecting part 214a are located on opposite sides of the fourth reinforcing cavity 211.

[0090] This design reduces the volume of each reinforcing member in the second reinforcing assembly 21, facilitating manufacturing. The box-like structure formed by multiple reinforcing members enhances the structural strength of the second column 2. When the latch is under stress, the force can be transmitted to each reinforcing member through the second reinforcing assembly 21 and the third reinforcing cavity 15, optimizing the overall stress distribution and improving the stability of the latch installation, reducing swaying and thus improving NVH performance.

[0091] like Figure 7 As shown, in one possible implementation, the fifth connecting portion 214a includes a first flange 214c. The fifth connecting portion 214a is connected to the second connecting portion 212b via the first flange 214c. The first flange 214c extends in the same direction as the second connecting portion 212b.

[0092] This design increases the contact area between the second connecting part 212b and the fifth connecting part 214a, thereby improving the structural strength of the second reinforcing component 21.

[0093] like Figure 7As shown, in one possible embodiment, the second column 2 includes a second outer plate 23 and a column reinforcing plate 24. The second outer plate 23 is connected to the second reinforcing component 21. At least a portion of the second outer plate 23 has a gap with the second reinforcing component 21, so that at least a portion of the second outer plate 23 and the second reinforcing component 21 can form a first cavity 27, so that the first cavity 27 can serve as a reinforcing cavity to strengthen the structure of the second column 2. The column reinforcing plate 24 is located at the end of the second outer plate 23 away from the second reinforcing component 21, and at least a portion of the column reinforcing plate 24 has a gap with at least a portion of the second outer plate 23 to form a second cavity 28. The sixth connecting portion 214b includes a second flange 214d, which is connected to the second outer plate 23. The first connecting portion 212a and / or the third connecting portion 213a are also connected to the second outer plate 23.

[0094] This design allows for the formation of multiple cavities in the second column 2, thereby increasing the structural strength of the second column 2.

[0095] like Figure 7 As shown, in one possible implementation, the first connecting portion 212a is approximately perpendicular to the second connecting portion 212b, the third connecting portion 213a is approximately perpendicular to the fourth connecting portion 213b, the fifth connecting portion 214a is approximately perpendicular to the sixth connecting portion 214b, the first connecting portion 212a, the third connecting portion 213a and the fifth connecting portion 214a are approximately parallel, and the second connecting portion 212b, the fourth connecting portion 213b and the sixth connecting portion 214b are approximately parallel. During assembly, the first connecting portion 212a is connected to the third connecting portion 213a. The second connecting portion 212b and the fourth connecting portion 213b extend in the same direction. The fifth connecting portion 214a is connected to the first connecting portion 212a via the first flange 214c. The sixth connecting portion 214b is located on the side of the fourth connecting portion 213b away from the second connecting portion 212b and is connected to the second connecting portion 212b. Along the direction close to the second outer plate 23, the sixth connecting portion 214b can protrude relative to the third connecting portion 213a, so that when the sixth connecting portion 214b is connected to the second outer plate 23 via the second flange 214d, there is a certain gap between the second outer plate 23 and the third connecting portion 213a, which is used to form a cavity. In one possible embodiment, the fourth connecting portion 213b may include a third flange, the third flange extending in the same direction as the fifth connecting portion 214a, for contacting the fifth connecting portion 214a.

[0096] This design increases the connection area between the various reinforcing members of the second reinforcing component 21, and the contact between the various components is surface contact. When under stress, the second reinforcing component 21 has better resistance to deformation, thus improving the structural strength of the second column 2 and the locking mounting part 22.

[0097] like Figure 7 As shown, in a possible implementation, the position of the first cavity 27 and / or the second cavity 28 may correspond to the position of the fourth strengthening cavity 211.

[0098] In a possible implementation, the cross-section of the second upright post 2 may form a structure approximately in the shape of the Chinese character "mu" (目).

[0099] By setting the structure of the second upright post 2 to increase the number of cavities, the structural strength of the second upright post 2 can be effectively improved, thereby enhancing the overall strength of the tail door frame, which better meets the actual usage requirements.

[0100] As Figure 8 shown, in a possible implementation, the latch mounting portion 22 is provided on the second strengthening component 21, and the second strengthening component 21 includes at least one of a limiter mounting portion 25 and a tail lamp mounting portion 26.

[0101] Through such a design, the mounting structures of other parts can be integrated into the second strengthening component 21, so that the mounting brackets separately provided for components such as the limiter and the tail lamp can be omitted, thereby making the structure of the tail door frame more compact, reducing costs at the same time, and better meeting the actual usage requirements.

[0102] The structures of the third strengthening member 212, the fourth strengthening member 213 and the fifth strengthening member 214 are as Figure 9 , Figure 10 and Figure 11 shown. During production, structures such as mounting holes, strengthening ribs, and weight-reducing holes can be set according to the actual usage requirements.

[0103] Based on the tail door frames provided in the above embodiments, the embodiments of the present application further provide a vehicle, where the vehicle includes a tail door frame, and the tail door frame can be the tail door frame involved in any of the above embodiments. Since the tail door frame has the above technical effects, therefore, the vehicle including the tail door frame also has corresponding technical effects, which will not be elaborated here.

[0104] In the solution provided by the embodiment of the present application, by providing the first strengthening component 11, the installation parts of multiple hinges can be strengthened simultaneously. The first strengthening component 11 is connected to structures such as the first outer panel 13, the inner rear side panel 14, the lower corner panel, and the wheelhouse connecting plate, and can form structures such as a "day" shape or a "pin" shape in the cross-section of the first upright column 1, that is, a honeycomb-shaped cavity structure can be formed in the first upright column 1. When the hinge is stressed, the first strengthening component 11 can transfer the force well, so that the acting force is dispersed. The number of parts of the first strengthening component 11 is small. During assembly, the process is relatively simple, the part matching difficulty is low, and the cost is also low. The installation position of the lock is arranged at the middle position of the second upright column 2. The third strengthening member 212, the fourth strengthening plate, and the fifth strengthening plate are used to form the second strengthening component 21. The second strengthening component 21 is welded to the second outer panel 23 and can form multiple cavities together with structures such as the second outer panel 23 and the upright column strengthening plate 24, thereby strengthening the overall structure of the second upright column 2 and the tail door frame. During use, the force at the lock can be transferred to each strengthening member through the cavity, thereby optimizing the overall force of the tail door frame, reducing deformation, and improving the durability performance. Integrating the installation parts of structures such as the limiter and the tail lamp into the second strengthening component 21 can reduce the development of the installation brackets of each component, which is beneficial to cost reduction and vehicle weight reduction. Through actual tests, the tail door frame provided by the embodiment of the present application can increase the strength of the installation positions of components such as the lock and the limiter by 15%, and can increase the strength of the installation position of the hinge by 8%, thereby reducing the risk of cracking of the installation positions of each component due to insufficient durability. The overall vertical stiffness of the tail door frame is increased by 7%, which can avoid the tail door frame and the tail door from sagging, resulting in problems such as the gap and step difference between the tail door and the vehicle body, and reducing the possibility of interference.

[0105] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present application.

Claims

1. A tailgate frame, characterized in that, The tail gate frame comprises a first upright column (1) and a second upright column (2), the first upright column (1) and the second upright column (2) are located on both sides of the tail gate frame along the width direction of the tail gate frame, the first upright column (1) is used for mounting a hinge, and the second upright column (2) is used for mounting a lock catch. The first upright column (1) comprises a first reinforcing assembly (11) and at least two hinge mounting portions (12), the first reinforcing assembly (11) is used for reinforcing the hinge mounting portion (12), the first reinforcing assembly (11) comprises a first reinforcing piece (111) and a second reinforcing piece (112), the first reinforcing piece (111) has a first reinforcing cavity (111a) extending along the height direction of the tail gate frame, the second reinforcing piece (112) has a second reinforcing cavity (112a) extending along the height direction of the tail gate frame, and the first reinforcing piece (111) is located on one side of the second reinforcing piece (112) along the thickness direction of the tail gate frame.

2. The tailgate frame of claim 1, wherein, The first reinforcing piece (111) comprises a first body portion (111b), a second body portion (111c) and a third body portion (111d), the second body portion (111c) and the third body portion (111d) are located on opposite sides of the first body portion (111b), the second body portion (111c) and the third body portion (111d) have an included angle with the first body portion (111b), and are used for surrounding the first reinforcing cavity (111a); The second reinforcing piece (112) comprises a fourth body portion (112b), a fifth body portion (112c) and a sixth body portion (112d), the fifth body portion (112c) and the sixth body portion (112d) are located on opposite sides of the fourth body portion (112b), the fifth body portion (112c) and the sixth body portion (112d) have an included angle with the fourth body portion (112b), and are used for surrounding the second reinforcing cavity (112a); The second body portion (111c) and the third body portion (111d) are located on a side of the first body portion (111b) away from the second reinforcing piece (112), and the fourth body portion (112b) and the fifth body portion (112c) are connected with the first reinforcing piece (111).

3. The tailgate frame of claim 2, wherein, The first upright column (1) comprises a first outer plate (13) and a rear quarter inner plate (14), the first outer plate (13) is located on a side of the second reinforcing piece (112) away from the first reinforcing piece (111), and the rear quarter inner plate (14) is located on a side of the first reinforcing piece (111) away from the second reinforcing piece (112).

4. The tailgate frame of claim 3, wherein, The first outer plate (13) and the rear quarter inner plate (14) are connected and surround a third reinforcing cavity (15), and at least part of the third reinforcing cavity (15) is located on a side of the first reinforcing assembly (11) along the width direction of the tail gate frame.

5. The tailgate frame of any one of claims 1-4, wherein, The second upright column (2) is provided with a lock mounting portion (22) and a second reinforcing assembly (21), the second reinforcing assembly (21) has at least one fourth reinforcing cavity (211), and the second reinforcing assembly (21) is used for reinforcing the lock mounting portion (22).

6. The tailgate frame of claim 5, wherein, The second reinforcing assembly (21) comprises a third reinforcing piece (212), a fourth reinforcing piece (213) and a fifth reinforcing piece (214). The third reinforcing piece (212) comprises a first connecting portion (212a) and a second connecting portion (212b) connected with each other, and an included angle is formed between the first connecting portion (212a) and the second connecting portion (212b). The fourth reinforcing piece (213) comprises a third connecting portion (213a) and a fourth connecting portion (213b) connected with each other, and an included angle is formed between the third connecting portion (213a) and the fourth connecting portion (213b). The fifth reinforcing piece (214) comprises a fifth connecting portion (214a) and a sixth connecting portion (214b) connected with each other, and an included angle is formed between the fifth connecting portion (214a) and the sixth connecting portion (214b). The first connecting portion (212a) is connected with the third connecting portion (213a), the fifth connecting portion (214a) is connected with the second connecting portion (212b), the sixth connecting portion (214b) is connected with the fourth connecting portion (213b), the second connecting portion (212b) and the fourth connecting portion (213b) are located on opposite sides of the fourth reinforcing cavity (211), and the third connecting portion (213a) and the fifth connecting portion (214a) are located on opposite sides of the fourth reinforcing cavity (211).

7. The tailgate frame of claim 6, wherein, The fifth connecting portion (214a) comprises a first flange (214c), and the fifth connecting portion (214a) is connected with the second connecting portion (212b) through the first flange (214c).

8. The tailgate frame of claim 7, wherein, The second upright column (2) comprises a second outer plate (23) and an upright column reinforcing plate (24), the second outer plate (23) is connected with the second reinforcing assembly (21), at least part of the second outer plate (23) and the second reinforcing assembly (21) are used for surrounding a first cavity (27), the upright column reinforcing plate (24) is located on a side of the second outer plate (23) away from the second reinforcing assembly (21), and at least part of the upright column reinforcing plate (24) and at least part of the second outer plate (23) surround a second cavity (28). The sixth connecting portion (214b) comprises a second flange (214d), the second flange (214d) is connected with the second outer plate (23), and the first connecting portion (212a) and / or the third connecting portion (213a) is connected with the second outer plate (23).

9. The tailgate frame of claim 5, wherein, The second reinforcing assembly (21) is provided with at least one of a limit stop mounting portion (25) and a tail lamp mounting portion (26).

10. A vehicle characterized by comprising: The vehicle comprises a tail door frame, and the tail door frame is the tail door frame according to any one of claims 1 to 9.

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