Back door outer panel assembly structure and vehicle having the same

Abstract

The present invention relates to the technical field of automobile component structure, and specifically refers to a back door outer panel assembly structure and a vehicle having the structure. It includes a window frame portion, a lower portion of the back door outer panel, two groups of side taillight bases and a middle taillight base. The window frame portion is a frame-shaped structure for installing a windshield formed by welding a plurality of components to each other; the lower portion of the back door outer panel is welded and fixed to the rear end of the window frame portion in the X direction; the two groups of side taillight bases are respectively welded to the two sides of the Y direction between the window frame portion and the lower portion of the back door outer panel; the middle taillight base is arranged at the front end of the lower portion of the back door outer panel in the X direction, and the middle taillight base is fixed to the window frame portion through a welding structure at the rear end of the window frame portion in the X direction. The back door outer panel of the present invention has a simple structure, is easy to install, has a very high material utilization rate, is simple to form and has a stable structure, and has great promotion value.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component structures, and in particular to a back door outer panel assembly structure and a vehicle having the structure. Background Art

[0002] For the fastback coupe rear door, the length of the rear windshield along the length of the vehicle is generally about 700mm, and in order to provide more convenient luggage storage space, the rear windshield is generally opened and closed together with the rear door. The length of the rear door glass of traditional SUV models is generally about 400mm. In summary, the size of the window frame area of ​​the fastback coupe is larger than that of the traditional SUV, and the material utilization rate of the traditional integral outer panel will be greatly reduced. Moreover, fastback doors usually use through-type taillights. The tailgate structure with through-type taillights has problems such as stamping cracking, welding shunting, wrinkling of welding edges and poor outer surface quality. In order to solve these problems, there is a Chinese invention patent with the patent number "CN111890897A" entitled "A tailgate outer panel assembly structure and a vehicle having the same". This patent introduces a tailgate outer panel assembly structure, including a lamp holder plate arranged between the tailgate inner panel and the taillight, and a tailgate outer panel overlapped with both ends of the lamp holder plate. The lamp holder plate is made of galvanized steel plate, and the lamp holder plate is provided with an avoidance boss and an avoidance groove for avoiding the taillight lamp box. The structure is achieved by setting an integral taillight mounting base in the through-type taillight area, the upper end of the taillight mounting base is connected to the upper outer panel, and the lower end of the taillight mounting base is connected to the lower outer panel. However, this treatment method reduces the material utilization rate of the upper outer panel and the lower outer panel, and also increases the parts and mold costs of the taillight base. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide a back door outer panel assembly structure and a vehicle having the structure.

[0004] The technical solution of the present invention is: a back door outer panel assembly structure, comprising:

[0005] A window frame part, wherein the window frame part is a frame-shaped structure formed by welding a plurality of components to be used for mounting a windshield;

[0006] A lower portion of a back door outer panel, wherein the lower portion of the back door outer panel is welded and fixed to the rear end of the window frame portion in the X direction;

[0007] Two sets of side taillight bases, the two sets of side taillight bases are respectively welded to the Y-direction sides between the window frame portion and the lower portion of the back door outer panel;

[0008] The middle taillight base is arranged at the front end in the X direction of the lower part of the back door outer panel, and the middle taillight base is fixed to the window frame part through the welding structure at the rear end in the X direction of the window frame part.

[0009] According to a back door outer panel assembly structure provided by the present invention, the window frame portion comprises an upper portion of the back door outer panel, and the upper portion of the back door outer panel is a plate-shaped structure arranged along the Y direction;

[0010] Two sets of window frame side panels, wherein the window frame side panels are plate-shaped structures arranged along the X direction, and the front ends of the two sets of window frame side panels in the X direction are respectively welded and fixed to the two sides of the upper part of the back door outer panel in the Y direction;

[0011] The middle part of the back door outer panel is a plate-like structure arranged along the X direction;

[0012] The rear ends of the two sets of window frame side panels in the X direction are respectively welded and fixed to the two sides of the middle of the back door outer panel in the Y direction.

[0013] According to a back door outer panel assembly structure provided by the present invention, the middle tail lamp base includes:

[0014] A bottom plate, the bottom plate protrudes from the front end in the X direction of the lower part of the back door outer plate in the X direction, a plurality of mounting holes for mounting the through-type tail lamps are arranged on the bottom plate, and the bottom plate is fixed to the middle part of the back door outer plate through the first welding structure in the middle part of the back door outer plate;

[0015] Two sets of side panels are arranged on both sides of the bottom plate in the Y direction, one end of the side panel is fixed to the front end of the bottom plate in the X direction, and the other end extends along the Z direction. The side panel is fixed to the middle part of the back door outer panel through the second welding structure in the middle part of the back door outer panel.

[0016] According to a back door outer panel assembly structure provided by the present invention, the first welding structure comprises:

[0017] A flange, wherein the upper end of the flange is fixed to the rear end in the X direction of the middle part of the back door outer panel, and the lower end extends downward in the Z direction;

[0018] A plurality of first welding points are arranged at intervals along the Y direction at the lower end of the flange, and the first welding points are sheet-like structures extending along the X direction and attached to the upper end surface of the bottom plate.

[0019] According to a back door outer panel assembly structure provided by the present invention, the second welding structure comprises:

[0020] Multiple second welding points are arranged at intervals along the Y direction at the X-direction rear end of the middle part of the back door outer panel. The second welding point is a sheet structure with one end fixed to the lower end of the middle part of the back door outer panel and the other end extending downward along the Z direction and attached to the X-direction front end surface of the side panel.

[0021] A back door outer panel assembly structure provided by the present invention further includes a third welding structure, and the third welding structure includes:

[0022] Multiple third welding points are arranged at intervals along the Y direction at the X-direction rear end of the middle part of the tailgate outer panel, and one end of the third welding point is fixed to the lower end of the middle part of the tailgate outer panel, and the other end extends downward along the Z direction and is attached to the X-direction front end surface of the side taillight base.

[0023] According to a back door outer panel assembly structure provided by the present invention, the side tail light base includes:

[0024] A third inner panel welding surface, wherein the third inner panel welding surface is a sheet structure welded to the back door inner panel;

[0025] A first welding surface, wherein the lower end of the first welding surface is fixed to the front end of the third inner plate welding surface in the X direction, and the upper end of the first welding surface extends upward in the Z direction, and the first welding surface is a sheet-like structure fixedly connected to the third welding point;

[0026] A second welding surface, wherein the second welding surface is a sheet-like structure with one end fixed to the welding surface of the third inner plate and the other end extending along the Y direction to be attached to the upper surface of the bottom plate;

[0027] The third welding surface, the lower end of the third welding surface is fixed to the rear end of the third inner plate welding surface in the X direction, and the upper end extends upward along the Z direction. The third welding surface is a sheet structure fixedly connected with the rear end surface in the X direction and the front end in the X direction of the lower part of the back door outer panel.

[0028] According to a back door outer panel assembly structure provided by the present invention, the upper portion of the back door outer panel comprises:

[0029] An upper molding surface, wherein the upper molding surface is a plate-like structure arranged along the Y direction;

[0030] A first windshield glue-coated surface, the first windshield glue-coated surface being arranged on a side of the rear end in the direction X of the upper molding surface;

[0031] The first inner panel welding surface is arranged in the middle of the first windshield glue-coated surface in the Y direction and is located in the middle of the two groups of window frame side panels.

[0032] According to a back door outer panel assembly structure provided by the present invention, the window frame side panel comprises:

[0033] A second inner plate welding surface, wherein the second inner plate welding surface is a plate-shaped structure arranged along the X direction;

[0034] A front welding surface, which is arranged at the front end of the second inner panel welding surface in the X direction and is used for welding and connecting with the upper part of the back door outer panel;

[0035] The second windshield glue-coated surface is arranged on the Y-direction inner side of the second inner plate welding surface.

[0036] The present invention also provides a vehicle, wherein the vehicle has the above-mentioned back door outer panel assembly structure.

[0037] The advantages of the present invention are as follows: 1. The present invention divides the back door outer panel assembly into multiple modules, and the modules are welded and assembled to each other. This back door outer panel assembly structure has a high material utilization rate. Compared with the integral back door outer panel assembly structure, the back door outer panel of the present invention is simple to form and easy to process. The through-type taillights on the back door outer panel assembly are simple and convenient to arrange, and the investment cost of the mold is low;

[0038] 2. The window frame of the present invention comprises an upper portion of a back door outer panel, a window frame side panel and a lower portion of a back door outer panel. The components are connected by welding to form an integral window frame, which makes processing and forming simpler. For a back door outer panel assembly with a fastback structure, the structure of the present invention improves the structural rigidity of the components and facilitates transportation;

[0039] 3. The middle taillight base of the present invention is arranged between the middle part of the back door outer panel and the lower part of the back door outer panel, and is connected to the middle part of the back door outer panel and the side taillight base by welding. The connection structure is simple and the arrangement is convenient, which facilitates the installation of the through-type taillight;

[0040] 4. The first welding structure of the present invention can conveniently weld and fix the bottom plate and the middle part of the back door outer panel. The constructed welding connection structure is simple, convenient for forming and installation, and greatly improves the processing efficiency of the back door outer panel assembly;

[0041] 5. The second welding structure of the present invention can conveniently weld the side panel to the middle of the back door outer panel. The welding structure is simple, and the back door outer panel assembly is simple to form during the processing, and the processing efficiency is extremely high.

[0042] 6. The present invention is also provided with a third welding structure, which can conveniently weld and fix the side taillight base to the middle of the back door outer panel. The welding structure is simple and the processing efficiency is extremely high.

[0043] 7. The side taillight base welding structure of the present invention is simple, and the side taillight base can be conveniently welded and fixed to the middle part of the back door outer panel, the bottom plate and the lower part of the back door outer panel through the welding surface, and the structure is stable and easy to install;

[0044] 8. The upper part of the back door outer panel of the present invention has a simple structure, and has multiple aspects such as modeling, installation of the windshield glass and welding of the back door inner panel. It is easy to process and has a very high installation efficiency. It fully considers the rigidity of the window frame part and has a very high utilization rate of materials.

[0045] 9. The window frame side panel of the present invention has a simple structure, and fully considers the installation with the upper part of the back door outer panel, the back door inner panel and the windshield, etc., so the installation is extremely convenient and the material utilization rate is high.

[0046] The back door outer panel of the present invention has a simple structure, is easy to install, has a very high material utilization rate, is simple to shape and has a stable structure, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 : A schematic diagram of the back door outer panel assembly structure of the present invention;

[0048] Figure 2 : An exploded schematic diagram of the back door outer panel assembly of the present invention;

[0049] Figure 3 : Schematic diagram of the upper structure of the back door outer plate of the present invention;

[0050] Figure 4 : Schematic diagram of the window frame side plate structure of the present invention;

[0051] Figure 5 : A schematic diagram of the middle structure of the back door outer panel of the present invention;

[0052] Figure 6 : A schematic diagram of the structure of the side taillight base of the present invention;

[0053] Figure 7 : A schematic diagram of the structure of the lower portion of the back door outer panel and the middle taillight base of the present invention;

[0054] Among them: 1—upper part of the back door outer panel; 11—upper part molding surface; 12—first windshield glue coating surface; 13—first inner panel welding surface;

[0055] 2—window frame side plate; 21—second inner plate welding surface; 22—front welding surface; 23—second windshield glue coating surface;

[0056] 3—middle part of the back door outer panel; 31—flange; 32—first welding point; 33—second welding point; 34—third welding point; 35—third windshield glue surface; 36—rear welding surface;

[0057] 4—side taillight base; 41—third inner plate welding surface; 42—first welding surface; 43—second welding surface; 44—third welding surface;

[0058] 5—lower part of the back door outer panel; 51—lower welding surface;

[0059] 6—middle taillight base; 61—bottom plate; 62—side plate; DETAILED DESCRIPTION

[0060] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0061] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0064] The present application relates to a tailgate outer panel assembly structure, which forms the mounting structure of the rear windshield of a fastback vehicle, through-type taillights, license plates and other parts. The tailgate outer panel assembly of the present application is welded and fixed to the tailgate inner panel, and the tailgate outer panel assembly is welded and formed using a split structure. Compared with the tailgate outer panel assembly of an integral forming process, the tailgate outer panel assembly of the present application has a simpler manufacturing process, is more convenient to form, and has a higher material utilization rate, and is suitable for large-scale promotion and use.

[0065] Specifically, Figures 1 to 7 As shown, the tailgate outer panel assembly of the present application includes a window frame part, a tailgate outer panel lower part 5, two groups of side taillight bases 4 and a middle taillight base 6. The window frame part is a frame structure for installing a windshield formed by welding a plurality of components to each other; the tailgate outer panel lower part 5 is welded and fixed to the X-rear end of the window frame part for installing structures such as a license plate; the two groups of side taillight bases 4 are respectively welded to the Y-side sides between the window frame part and the tailgate outer panel lower part 5, and the side taillight base 4 is a structure for installing the taillights on both sides; the middle taillight base 6 is arranged at the X-front end of the tailgate outer panel lower part 5, and the middle taillight base 6 is fixed to the window frame part by the welding structure at the X-rear end of the window frame part, and the middle taillight base 6 is a structure for installing a through-type taillight, which is a middle taillight, and the middle taillight is connected with the side taillights on both sides.

[0066] During actual processing and forming, the window frame part is processed, and multiple components of the window frame part are processed and formed by welding. The middle taillight base 6 is welded and fixed to the X-rear end of the window frame part, and the two sets of side taillight bases 4 are welded and fixed to the Y-sides between the window frame part and the lower part 5 of the back door outer panel, and the side taillight base 4 is welded and fixed to the middle taillight base 6 to complete the processing and forming of the back door outer panel assembly.

[0067] In some embodiments of the present application, the above-mentioned window frame part is optimized. Figures 1-2 As shown, the window frame part includes an upper portion 1 of a back door outer panel, two groups of window frame side panels 2 and a middle portion 3 of a back door outer panel, wherein the upper portion 1 of the back door outer panel is a plate-like structure arranged along the Y direction, the window frame side panels 2 are a plate-like structure arranged along the X direction, the front ends of the two groups of window frame side panels 2 in the X direction are respectively welded and fixed to both sides of the Y direction of the upper portion 1 of the back door outer panel, the middle portion 3 of the back door outer panel is a plate-like structure arranged along the X direction, the rear ends of the two groups of window frame side panels 2 in the X direction are respectively welded and fixed to both sides of the Y direction of the middle portion 3 of the back door outer panel to form a frame structure with the upper portion 1 of the back door outer panel.

[0068] During actual manufacturing, the X-direction front ends of the window frame side panels 2 on both sides are welded and fixed to the two sides of the upper part 1 of the back door outer panel, and the X-direction rear ends of the window frame side panels 2 are welded and fixed to the two sides of the middle part 3 of the back door outer panel to form a window frame part. The inner side of the window frame part is coated with glue for installing the windshield.

[0069] In some other embodiments of the present application, the structure of the upper portion 1 of the back door outer panel is optimized. Specifically, Figures 1 to 3 As shown, the upper part 1 of the tailgate outer panel includes an upper molding surface 11, a first windshield glued surface 12 and a first inner panel welding surface 13. The upper molding surface 11 is a plate-like structure arranged along the Y direction, and is used to construct the upper molding of the rear windshield of a fastback vehicle; the first windshield glued surface 12 is arranged on the X-direction rear end side of the upper molding surface 11, and the glue on the first windshield glued surface 12 is used to stick and fix the windshield; the first inner panel welding surface 13 is arranged in the Y-direction middle of the first windshield glued surface 12, and is located between the two groups of window frame side panels 2. The first inner panel welding surface 13 is a structural surface used to weld and fix the entire upper part 1 of the tailgate outer panel to the tailgate inner panel.

[0070] In a further embodiment of the present application, the present embodiment further optimizes the structure of the window frame side plate 2, specifically, Figures 1-2As shown in Figure 4, the window frame side panel 2 includes a second inner panel welding surface 21, a front welding surface 22 and a second windshield glue surface 23. The second inner panel welding surface 21 is a plate-like structure arranged along the X direction. The second inner panel welding surface 21 is a fixed surface connecting the window frame side panel 2 and the back door inner panel; the front welding surface 22 is arranged at the X-direction front end of the second inner panel welding surface 21, and is used for welding and connecting with the upper part 1 of the back door outer panel. The front welding surface 22 is a step surface, and is used for welding and connecting with the upper part 1 of the back door outer panel. The welding position is on the first windshield glue surface 12 on both sides of the first inner panel welding surface 13Y; the second windshield glue surface 23 is arranged on the Y-direction inner side of the second inner panel welding surface 21, and the glue on the second windshield glue surface 23 is used for pasting and fixing the windshield on both sides of the Y direction.

[0071] In some preferred embodiments of the present application, the middle portion 3 of the back door outer panel is optimized. Figures 1-2 As shown in FIG. 5 , the front end of the middle portion 3 of the back door outer panel in the X direction is fixedly connected to the window frame side panel 2 and the windshield. The front end of the middle portion 3 of the back door outer panel in the X direction is provided with a third windshield adhesive surface 35. The third windshield adhesive surface 35 is a sunken adhesive fixing surface that forms a step structure with the middle portion 3 of the back door outer panel. After the rear windshield is installed on the third windshield adhesive surface 35, the upper surface of the rear windshield is flush with the upper surface of the middle portion 3 of the back door outer panel. The third windshield adhesive surface 35 is provided with rear welding surfaces 36 on both sides of the Y direction. The rear welding surfaces 36 are welded and fixed to the lower end of the window frame side panel 2.

[0072] In some embodiments of the present application, the structure of the middle taillight base 6 is optimized. Specifically, Figures 1-2 As shown in Figures 7 and 8, the middle taillight base 6 of the present embodiment includes a bottom plate 61 and two groups of side plates 62. The bottom plate 61 protrudes from the front end in the X direction of the lower portion 5 of the back door outer panel along the X direction. A plurality of mounting holes for mounting through-type taillights are arranged on the bottom plate 61, and the bottom plate 61 is fixed to the middle portion 3 of the back door outer panel through a first welding structure of the middle portion 3 of the back door outer panel; the two groups of side plates 62 are disposed on both sides of the bottom plate 61 in the Y direction, one end of the side plate 62 is fixed to the front end in the X direction of the bottom plate 61, and the other end extends along the Z direction, and the side plate 62 is fixed to the middle portion 3 of the back door outer panel through a second welding structure of the middle portion 3 of the back door outer panel.

[0073] The bottom plate 61 of this embodiment is welded and fixedly connected to the middle portion 3 of the back door outer panel, the side plate 62 is also welded and fixedly connected to the middle portion 3 of the back door outer panel, and the side tail lamp base 4 is welded and fixedly connected to the bottom plate 61. The side plate 62, the bottom plate 61 and the lower portion 5 of the back door outer panel form a U-shaped structure with an open top, and the middle tail lamp is installed on the bottom plate 61 through the mounting hole, forming a through-type tail lamp structure with the side tail lamps on both sides.

[0074] In a further embodiment of the present application, the first welding structure is optimized. Specifically, Figure 5As shown, the first welding structure includes a flange 31 and a plurality of first welding points 32, wherein the upper end of the flange 31 is fixed to the rear end in the X direction of the middle portion 3 of the tailgate outer panel, and the lower end extends downward along the Z direction; the plurality of first welding points 32 are arranged at intervals along the Y direction at the lower end of the flange 31, and the first welding point 32 is a sheet-like structure extending along the X direction and attached to the upper end surface of the bottom plate 61.

[0075] When the bottom plate 61 needs to be connected to the middle portion 3 of the back door outer panel, the first welding point 32 is attached to the upper end surface of the bottom plate 61 , and then the first welding point 32 and the bottom plate 61 are welded to complete the connection between the two.

[0076] In some other embodiments of the present application, the second welding structure is optimized. Specifically, Figure 5 As shown, the second welding structure includes a plurality of second welding points 33. In this embodiment, there are two groups of second welding structures. The second welding structures correspond to the side panels 62 one by one. The two groups of second welding structures are disposed on both sides of the first welding structure in the Y direction. The plurality of second welding points 33 are arranged at intervals along the Y direction at the rear end of the middle portion 3 of the back door outer panel in the X direction. The second welding point 33 is a sheet structure with one end fixed to the lower end of the middle portion 3 of the back door outer panel and the other end extending downward along the Z direction and attached to the front end surface of the side panel 62 in the X direction.

[0077] When the side panel 62 needs to be connected to the middle portion 3 of the back door outer panel, the side panel 62 is attached to the rear end side of the second welding point 33 in the X direction, and then the second welding point 33 and the side panel 62 are welded to complete the welding and fixing of the two.

[0078] In some embodiments of the present application, the present embodiment further includes a third welding structure, and the third welding structure includes a plurality of third welding points 34, such as Figure 5 As shown, a plurality of third welding points 34 are arranged at intervals along the Y direction at the rear end of the middle portion 3 of the back door outer panel in the X direction. One end of the third welding point 34 is fixed to the lower end of the middle portion 3 of the back door outer panel, and the other end extends downward along the Z direction and fits to the front end surface of the side tail light base 4 in the X direction. There are two groups of third welding structures in this embodiment. The third welding structures correspond to the side tail light bases 4 one by one. The third welding structures are located at the outermost side of the middle portion 3 of the back door in the Y direction. The structure of the third welding point 34 is basically similar to that of the second welding point 33, both of which are sheet-like structures.

[0079] When the side tail lamp base 4 needs to be fixed to the middle portion 3 of the back door outer panel, the third welding point 34 is fitted with the first welding surface 42 of the side tail lamp base 4 and then the two are welded and fixed to complete the connection between the two.

[0080] In some other embodiments of the present application, the side taillight base 4 is optimized. Figures 1-2As shown in and 6, the side taillight base 4 includes a second and a third inner panel welding surface 41, a first welding surface 42, a second welding surface 43 and a third welding surface 44. The third inner panel welding surface 41 is a sheet-like structure welded to the back door inner panel, and the third inner panel welding surface 41 is a fixing surface connecting the side taillight base 4 and the back door inner panel; the lower end of the first welding surface 42 is fixed to the third inner panel welding surface 41X-front end, and the upper end extends upward along the Z direction. The first welding surface 42 is a sheet-like structure fixedly connected to the third welding point 34; the second welding surface 43 is a sheet-like structure with one end fixed to the third inner panel welding surface 41 and the other end extending along the Y direction to fit the upper end surface of the bottom plate 61; the lower end of the third welding surface 44 is fixed to the third inner panel welding surface 41X-rear end, and the upper end extends upward along the Z direction. The third welding surface 44 is a sheet-like structure whose X-rear end surface is fixedly connected to the lower part of the back door outer panel 5X-front end. The third welding surface 44 is based on the side shape of the lower part of the back door outer panel 5 (such as Figure 7 The lower welding surface 51 shown in the figure, the third welding surface 44 is fitted with the lower welding surface 51, and then welded and fixedly connected) is specifically designed. The third welding surface 44 includes two parts of the welding surface, and the two parts of the welding surface form a bent welding surface corresponding to the shape of both sides of the front end of the lower part of the back door outer panel in the X direction.

[0081] Specifically, during the actual assembly, the front welding surface 22 of the front end of the window frame side plate 2X is welded and fixed to the upper part 1 of the back door outer plate, and the rear welding surface 36 of the middle part 3 of the back door outer plate is welded and fixed to the rear end of the window frame side plate 2X to form the window frame part, and glue is applied on the first windshield glue surface 12, the second windshield glue surface 23 and the third windshield glue surface 35 of the window frame part to install the windshield glass;

[0082] The bottom plate 61 is welded to the first welding point 32, the side plate 62 is welded to the second welding point 33, and the first welding surface 42 is welded to the third welding point 34; the second welding surface 43 is welded to the bottom plate 61, and the third welding surface 44 is welded to the parts on both sides of the lower part 5Y of the back door outer panel. Thus, the installation of the side tail light base 4 and the middle tail light base 6 and the connection between the lower part 5 of the back door outer panel and the middle part 3 of the back door outer panel are completed;

[0083] The first inner panel welding surface 13 , the second inner panel welding surface 21 , and the third inner panel welding surface 41 are welded and fixed to the back door inner panel to complete the installation of the entire back door outer panel assembly.

[0084] In addition, the present application also protects a vehicle, and the vehicle of the present application includes the above-mentioned tailgate outer panel assembly structure.

[0085] In the present application, the X direction refers to the front and rear direction of the car, the Y direction refers to the left and right direction of the car, and the Z direction refers to the up and down direction of the car. The direction close to the front of the car in the X direction is the front, and the direction close to the rear of the car is the rear.

[0086] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A back door outer panel assembly structure, Features: include, A window frame part, wherein the window frame part is a frame-shaped structure formed by welding a plurality of components to be used for mounting a windshield; A lower portion of a back door outer panel (5), wherein the lower portion of the back door outer panel (5) is welded and fixed to the rear end of the window frame portion in the X direction; Two groups of side taillight bases (4), the two groups of side taillight bases (4) being respectively welded to two sides in the Y direction between the window frame portion and the lower portion of the back door outer panel (5); A middle taillight base (6), the middle taillight base (6) being arranged at the front end in the X direction of the lower portion (5) of the back door outer plate, and the middle taillight base being fixed to the window frame portion via a welding structure at the rear end in the X direction of the window frame portion; The window frame part comprises: An upper portion of a back door outer panel (1), wherein the upper portion of the back door outer panel (1) is a plate-shaped structure arranged along the Y direction; Two sets of window frame side panels (2), wherein the window frame side panels (2) are plate-shaped structures arranged along the X direction, and the front ends of the two sets of window frame side panels (2) in the X direction are respectively welded and fixed to the two sides of the upper part of the back door outer panel (1) in the Y direction; A middle portion (3) of the back door outer panel, wherein the middle portion (3) of the back door outer panel is a plate-shaped structure arranged along the X direction; The rear ends of the two sets of window frame side panels (2) in the X direction are respectively welded and fixed to the two sides of the middle part (3) of the back door outer panel in the Y direction; The intermediate taillight base (6) comprises: A bottom plate (61), the bottom plate (61) protruding in the X direction from the front end in the X direction of the lower portion (5) of the back door outer plate, the bottom plate (61) being provided with a plurality of mounting holes for mounting a through-type tail lamp, and being fixed to the middle portion (3) of the back door outer plate via a first welding structure in the middle portion (3) of the back door outer plate; Two groups of side panels (62), the two groups of side panels (62) being disposed on both sides of the bottom plate (61) in the Y direction, one end of the side panel (62) being fixed to the front end of the bottom plate (61) in the X direction, and the other end extending in the Z direction, the side panel (62) being fixed to the middle portion (3) of the back door outer panel through a second welding structure in the middle portion (3) of the back door outer panel; The first welding structure comprises: A flange (31), wherein the upper end of the flange (31) is fixed to the rear end in the X direction of the middle portion (3) of the back door outer panel, and the lower end extends downward in the Z direction; A plurality of first welding points (32) are arranged at intervals along the Y direction at the lower end of the flange (31); the first welding points (32) are sheet-like structures extending along the X direction and attached to the upper end surface of the bottom plate (61).

2. A back door outer panel assembly structure as claimed in claim 1, Features: The second welding structure comprises: A plurality of second welding points (33) are arranged at intervals along the Y direction at the rear end of the middle portion (3) of the back door outer panel in the X direction. The second welding point (33) is a sheet-like structure with one end fixed to the lower end of the middle portion (3) of the back door outer panel and the other end extending downward along the Z direction and attached to the front end surface of the side panel (62) in the X direction.

3. A back door outer panel assembly structure as claimed in claim 1, Features: Also included is a third welding structure, the third welding structure comprising: A plurality of third welding points (34) are arranged at intervals along the Y direction at the rear end in the X direction of the middle portion (3) of the back door outer panel, and the third welding point (34) has one end fixed to the lower end of the middle portion (3) of the back door outer panel and the other end extending downward along the Z direction and affixed to the front end surface in the X direction of the side taillight base (4).

4. A back door outer panel assembly structure as claimed in claim 3, Features: The side taillight base (4) comprises: A third inner panel welding surface (41), wherein the third inner panel welding surface (41) is a sheet-like structure welded to the back door inner panel; a first welding surface (42), wherein the lower end of the first welding surface (42) is fixed to the front end of the third inner plate welding surface (41) in the X direction, and the upper end extends upward in the Z direction, and the first welding surface (42) is a sheet-like structure fixedly connected to the third welding point (34); A second welding surface (43), the second welding surface (43) being a sheet-like structure with one end fixed to the third inner plate welding surface (41) and the other end extending along the Y direction to be attached to the upper end surface of the bottom plate (61); A third welding surface (44), wherein the lower end of the third welding surface (44) is fixed to the X-direction rear end of the third inner plate welding surface (41), and the upper end extends upward along the Z direction. The third welding surface (44) is a sheet-like structure whose X-direction rear end surface is fixedly connected to the X-direction front end of the lower portion of the back door outer plate (5).

5. A back door outer panel assembly structure as claimed in claim 1, Features: The upper portion (1) of the back door outer panel comprises: An upper molding surface (11), wherein the upper molding surface (11) is a plate-shaped structure arranged along the Y direction; A first windshield glue-coated surface (12), the first windshield glue-coated surface (12) being arranged on a side of the rear end in the X direction of the upper molding surface (11); A first inner plate welding surface (13), wherein the first inner plate welding surface (13) is arranged in the middle of the first windshield glue coating surface (12) in the Y direction and is located in the middle of the two sets of window frame side plates (2).

6. A back door outer panel assembly structure as claimed in claim 1, Features: The window frame side plate (2) comprises: A second inner plate welding surface (21), wherein the second inner plate welding surface (21) is a plate-shaped structure arranged along the X direction; A front welding surface (22), the front welding surface (22) being arranged at the front end in the X direction of the second inner plate welding surface (21) and being used for welding and connecting with the upper portion (1) of the back door outer plate; A second windshield glue-coated surface (23), wherein the second windshield glue-coated surface (23) is arranged on the Y-direction inner side of the second inner plate welding surface (21).

7. A vehicle, Features: The vehicle has a back door outer panel assembly structure as described in any one of claims 1 to 6.

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