Back door assembly and vehicle

Abstract

The utility model discloses a back door assembly and a vehicle, the back door assembly comprises a back door, one end of the back door is rotatably connected to the back of a top plate of a vehicle body, the other end of the back door can be connected with a tail plate of the vehicle, and the back door is provided with a mounting groove; and the circumferential direction of the antenna cover plate is connected with the circumferential direction of the mounting groove in a sealing fit manner, and an antenna assembly is detachably mounted between the antenna cover plate and the back door. The antenna assembly is installed on the back door and located between the antenna cover plate and the back door, so that the antenna assembly is effectively prevented from falling off, the antenna assembly can be protected, and the service life of the antenna assembly can be prolonged; in addition, the antenna cover plate is hermetically connected with the back door, so that the problem of water leakage can be prevented, and the user experience can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a rear door of a vehicle, in particular to a rear door assembly and a vehicle. Background Art

[0002] With the development of intelligent automobiles, adding antenna components to vehicles has developed rapidly.

[0003] Currently, antenna assemblies are usually installed on the outside of vehicles. This arrangement not only affects the aesthetics of the vehicle body, but also makes it easy to fall off. There may also be water leakage problems due to poor sealing, which greatly affects the user experience.

[0004] Therefore, how to provide a rear door assembly of a vehicle to alleviate the water leakage problem and improve user experience is a technical problem that technical personnel need to solve urgently. Utility Model Content

[0005] In view of this, the utility model provides a vehicle back door assembly, which alleviates the water leakage problem and improves user experience. In addition, the utility model also provides a vehicle with the back door assembly.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vehicle back door assembly, comprising:

[0008] A tailgate, one end of which is rotatably connected to the rear of the roof of the vehicle body, and the other end of which is connectable to the tail plate of the vehicle, and the tailgate has a mounting groove;

[0009] The antenna cover plate is sealed and connected to the installation groove in the circumference, and the antenna assembly is detachably installed between the antenna cover plate and the rear door.

[0010] Preferably, in the above-mentioned back door assembly, the circumference of the groove bottom of the installation groove and the circumference of the antenna cover plate are sealed and connected by a sealant;

[0011] The connector of the back door connected to the antenna cover at the mounting groove is located at the outer circle of the sealant.

[0012] Preferably, in the above-mentioned back door assembly, the bottom of the installation groove and / or the antenna cover are coated with the sealant;

[0013] And / or, the sealant includes glass glue.

[0014] Preferably, in the above-mentioned back door assembly, the sealant is a triangular rubber ring, and the width of the sealant gradually decreases from the bonding surface of the sealant to the free end.

[0015] Preferably, in the above-mentioned back door composition, the antenna cover comprises:

[0016] An antenna inner plate, the antenna inner plate is used to be connected to the mounting groove of the back door, the antenna inner plate has an avoidance hole, the antenna assembly is located in the avoidance hole and is fixedly connected to the antenna inner plate;

[0017] The antenna outer plate is connected to the antenna inner plate and is used to shield the antenna inner plate.

[0018] Preferably, in the above-mentioned back door assembly, one of the antenna inner plate and the antenna assembly has a positioning column, and the other has a positioning hole;

[0019] And / or, one of the antenna inner plate and the antenna assembly has a mounting hole, and part of the mounting hole is a waist-shaped hole along the width direction of the vehicle body.

[0020] Preferably, in the above-mentioned back door assembly, the antenna inner plate has a weight-reducing hole;

[0021] And / or, the antenna inner plate is adhesively connected to the antenna outer plate;

[0022] And / or, the outer surface of the antenna outer panel and the outer surface of the rear door form the outer surface of the rear door.

[0023] Preferably, the above-mentioned back door composition includes:

[0024] Inner panels;

[0025] The outer panel includes the tailgate and the antenna cover, and the outer panel is connected to the inner panel. The outer panel cover is arranged on the outer side of the inner panel. Both the inner panel and the outer panel have maintenance holes opposite to the antenna assembly.

[0026] Preferably, in the above-mentioned back door composition, the antenna assembly is a 5G antenna assembly.

[0027] A vehicle comprises a tailgate assembly, wherein the tailgate assembly is any one of the tailgate assemblies described above.

[0028] The utility model discloses a rear door assembly in an embodiment. By installing the antenna assembly on the rear door and locating it between the antenna cover and the rear door, the antenna assembly can be effectively prevented from falling off and the antenna assembly can be protected, which is beneficial to extending the service life of the antenna assembly. In addition, the antenna cover is sealed and connected to the rear door, which can prevent water leakage and is beneficial to improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic structural diagram of the back door disclosed in the embodiment of the utility model;

[0031] Figure 2 It is a side view of the back door assembly disclosed in the embodiment of the utility model;

[0032] Figure 3 It is a schematic diagram of the structure of the back door disclosed in the embodiment of the utility model;

[0033] Figure 4 It is a structural schematic diagram of the mounting groove of the back door disclosed in the embodiment of the utility model;

[0034] Figure 5 It is a schematic diagram of the back structure of the back door assembly disclosed in the embodiment of the utility model;

[0035] Figure 6 This is a disassembled diagram of the antenna cover disclosed in the embodiment of the utility model;

[0036] Figure 7 It is a schematic diagram of the inner structure of the antenna cover plate disclosed in the embodiment of the utility model;

[0037] Figure 8 for Figure 7 A partial enlarged view of B in the middle;

[0038] Fig. 9 It is a structural schematic diagram of the antenna assembly disclosed in the embodiment of the utility model;

[0039] Fig.10 It is an assembly diagram of the antenna assembly and the antenna cover plate disclosed in the embodiment of the utility model;

[0040] Fig.11 for Fig.10 Sectional view in the AA direction;

[0041] Among them, 1 is the back door, 2 is the antenna cover, 100 is the outer panel, 200 is the inner panel, 300 is the antenna assembly, 11 is the installation groove, 12 is the first sealing rubber ring, 13 is the first maintenance hole, 21 is the antenna outer panel, 22 is the antenna inner panel, 221 is the weight reduction hole, 222 is the avoidance hole, 223 is the second sealing rubber ring, 224 is the positioning column, 225 is the threaded hole, 226 is the connecting hole, 301 is the shell, 302 is the positioning hole, 303 is the installation hole, 304 is the wiring harness, 305 is the plug-in; 400 is the threaded assembly, 401 is the screw, and 402 is the reed nut. DETAILED DESCRIPTION

[0042] The utility model discloses a rear door assembly of a vehicle, which alleviates the problem of water leakage and improves user experience. In addition, the utility model also discloses a vehicle with the rear door assembly.

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0045] like Figure 1 As shown, the back door disclosed in the present application comprises: a back door 1 and an antenna cover 2. One end of the back door 1 is rotatably connected to the rear of the top plate (not shown in the figure) of the vehicle body (the front and rear of the top plate are defined in the length direction of the vehicle body, wherein the position close to the front of the vehicle is the front, and the position close to the rear of the vehicle is the rear), and the other end is connected to the tail plate (not shown in the figure) of the vehicle body. The connection method of the back door 1 and the tail plate includes but is not limited to clamping. The tail plate can be the position of the rear anti-collision beam.

[0046] The tailgate 1 of the vehicle is a door panel of the rear storage space of the vehicle. The assembly method of the tailgate 1 and the vehicle body can refer to the connection method of the tailgate 1 of the existing vehicle. For example, the tailgate 1 can be flipped toward the roof or toward the side of the vehicle body.

[0047] See also Figure 3As shown, the back door 1 has a mounting groove 11, and the shape of the mounting groove 11 includes but is not limited to a U-shaped groove along the width direction of the back door 1. It should be noted that the width direction of the back door 1 is the width direction of the vehicle body. The size of the U-shaped groove can be set according to different needs and is within the protection range. Of course, the figure only shows one shape of the mounting groove 11, and the shape of the mounting groove 11 can also be set according to the appearance requirements of the back door 1.

[0048] Combination Figure 3 and Figure 1 As shown, the antenna cover 2 is installed at the installation groove 11, and the antenna cover 2 is adapted to the installation groove 11. It can be understood that the outer contour of the antenna cover 2 is the same as the outer contour of the installation groove 11 and the size matches. The position of the installation groove 11 includes but is not limited to being located on the side of the back door 1 close to the top plate of the vehicle body, and can also be located on the side of the back door 1 or close to the tail plate. The installation groove 11 in the example is located on the side of the back door 1 close to the top plate of the vehicle body, away from the tail plate, which can avoid the impact of the tail plate on the antenna assembly 300 when it collides.

[0049] The antenna assembly 300 is installed between the antenna cover plate 2 and the rear door 1. It can be understood that the antenna assembly 300 is built into the vehicle body. The installation position and installation method of the antenna assembly 300 can be set according to different needs. For example, the antenna assembly 300 can be installed on the rear door 1 or connected to the antenna cover plate 2.

[0050] In order to prevent the antenna assembly 300 from being damaged by rain or car wash water after being installed between the antenna cover 2 and the rear door 1, the antenna cover 2 is sealed against the rear door 1, and the antenna assembly 300 is located within the sealing ring formed by the antenna cover 2 and the rear door 1.

[0051] In the present application, the antenna assembly 300 is installed on the rear door 1 and located between the antenna cover 2 and the rear door 1, thereby effectively preventing the antenna assembly 300 from falling off and protecting the antenna assembly 300, which is beneficial to extending the service life of the antenna assembly 300.

[0052] Combination Figure 3 , Figure 4 as well as Figure 6 , Figure 7 and Fig.10 As shown, the antenna cover 2 and the mounting groove 11 of the rear door 1 are sealed by a sealant, and the sealant is continuously or discontinuously arranged along the circumference of the antenna cover 2 and the circumference of the groove bottom of the mounting groove 11 .

[0053] The antenna cover plate 2 and the mounting groove 11 are sealed by using a sealant, so that both can be fixed and sealed at the same time, which is easy to operate and low in cost.

[0054] In some embodiments, the antenna cover 2 and the back door 1 are connected by a connector (not shown in the figure), which can be at least one of a threaded connection, a positioning member or a clamping structure. Of course, other connectors can also be used, which are also within the scope of protection. After the antenna cover 2 and the back door 1 in this application are connected by sealant, the connector is located on the outer ring of the sealing ring formed by the sealant to prevent a gap from being generated at the connector, which affects the sealing effect of the antenna cover 2 and the back door 1.

[0055] In some embodiments, the bottom of the installation groove 11 has a first sealing rubber ring 12, and the circumference of the antenna cover 2 has a second sealing rubber ring 223. Of course, a sealing rubber ring may be provided only on the installation groove 11 or only on the antenna cover 2, as long as the antenna cover 2 can seal the antenna assembly 300 between the antenna cover 2 and the back door 1.

[0056] The arrangement and range of the sealant on the mounting groove 11 and the antenna cover 2 can be set according to the position of the antenna assembly 300. The antenna assembly 300 is located within the range of the sealant. Of course, if there are other structures that need to be sealed on the mounting groove 11 and the antenna cover 2, the range that requires the sealant can also cover these structures.

[0057] The types of sealants include but are not limited to glass glue, and of course, elastic strips, etc. In some embodiments, the cross section of the sealant is triangular, which can be understood as the width of the sealant gradually decreases from the bonding surface of the sealant to the free end. The use of triangular sealant can increase the deformation of the sealant when it is squeezed, thereby improving the sealing effect of the sealant.

[0058] Exemplarily, the cross-sectional dimensions of the glass glue are: a triangle with a bottom of (8±1) mm and a height of (12±1) mm, which is applied to the circumference of the mounting groove 11 of the rear door 1. The glass glue of the above dimensions has the following glue type dimensions and tolerance requirements after being flattened: width (10±2 mm) and height (6±2) mm. Apply primer to the rear door 1 to improve the bonding strength of the glass glue. The antenna cover 2 has an arc surface on the glass glue coating track to prevent large position deviations when the device is applying glass glue. After the antenna cover 2 and the rear door 1 are installed, there is an extrusion force between the two (the extrusion force includes but is not limited to the extrusion force when the antenna cover 2 and the rear door 1 are connected by a buckle). The compression of the glass glue is completed by the extrusion of the extrusion force, thereby achieving the curing and sealing of the glass glue.

[0059] Combination Figure 6 and Figure 7 The antenna cover plate 2 in the illustrated embodiment includes an antenna inner plate 22 and an antenna outer plate 21 .

[0060] Among them, the antenna inner plate 22 is used to connect with the installation groove 11 of the back door 1. The antenna inner plate 22 has an avoidance hole 222. The antenna assembly 300 is located in the avoidance hole 222 and is fixedly connected to the antenna inner plate 22. The antenna outer plate 21 is connected to the antenna inner plate 22 to cover the antenna inner plate 22.

[0061] The antenna cover 2 is divided into an antenna inner plate 22 and an antenna outer plate 21, and the antenna assembly 300 is installed on the antenna inner plate 22, which can avoid appearance defects such as shrinkage marks on the surface of the antenna outer plate 21, improve the smoothness of the outer surface of the antenna cover 2, and thus improve product quality.

[0062] Based on the above purpose, the antenna outer plate 21 in the present application can be a pure plate without holes, grooves, etc. In order to achieve the connection between the antenna outer plate 21 and the antenna inner plate 22, a bonding method can be used, for example, a structural adhesive can be used to connect the two.

[0063] It should be noted that the connection between the antenna outer plate 21 and the antenna inner plate 22 is a sealed connection, and the antenna assembly 300 is ensured to be located in a sealing ring formed by the structural adhesive to prevent rainwater from entering between the antenna outer plate 21 and the antenna inner plate 22.

[0064] Those skilled in the art will appreciate that it may be selected whether to divide the antenna cover plate 2 into an antenna inner plate 22 and an antenna outer plate 21 that are adhesively connected according to different needs.

[0065] In some embodiments, the thickness of the antenna cover plate 2 is relatively small. In order to complete the installation of the antenna assembly 300, the antenna inner plate 22 and the antenna outer plate 21 may be connected to provide a gap at the installation location of the antenna assembly 300, thereby providing an installation space for the antenna assembly 300. The spacing between the antenna outer plate 21 and the antenna inner plate 22 at the gap may be 0.3 mm.

[0066] also, Figure 6 and Figure 7 The antenna inner plate 22 shown in the figure has a weight-reducing hole 221, which may be one or more weight-reducing holes 221. After the weight-reducing holes 221 and avoidance holes 222 are arranged on the antenna inner plate 22, the weight of the antenna inner plate 22 along the length direction is preferably equal to avoid rotation problems caused by different weights at both ends of the antenna inner plate 22.

[0067] The length direction of the antenna inner panel 22 is the width direction of the vehicle body, and the height direction of the antenna inner panel 22 is the height direction of the vehicle body.

[0068] Since the antenna inner plate 22 is provided with a weight-reducing hole 221, the range of the sealant between the antenna cover plate 2 and the tailgate 1 needs to include the position of the weight-reducing hole 221; for the method in which the antenna cover plate 2 includes the antenna inner plate 22 and the antenna outer plate 21, the sealing range of the structural adhesive between the antenna inner plate 22 and the antenna outer plate 21 also needs to include the position of the weight-reducing hole 221.

[0069] See also Fig. 9 As shown, the antenna assembly 300 includes a housing 301, a wiring harness 304 and a plug-in 305, wherein the plug-in 305 is connected to the housing 301 through the wiring harness 304. The antenna assembly 300 in this application is a 5G antenna, which can improve the efficiency and stability of data transmission and is conducive to the development of the vehicle's intelligent system. The functional module of the 5G antenna is integrated in the housing 301. The specific structure of the 5G antenna is not described in detail here, and the description of the existing 5G antenna can be referred to.

[0070] Combination Figures 7 to 11 As shown, one of the antenna inner plate 22 and the antenna assembly 300 has a positioning column, and the other has a positioning hole; and / or, one of the antenna inner plate 22 and the antenna assembly 300 has a mounting hole, and some of the mounting holes are waist-shaped holes along the width direction of the vehicle body.

[0071] Exemplarily, the antenna inner plate 22 has a positioning post 224, and the housing 301 of the antenna assembly 300 has a positioning hole 302. The positioning holes 302 are distributed on both sides of the housing 301 along the width direction of the vehicle body, and the positioning posts 224 are distributed on both sides of the avoidance hole 222. It can be understood that after the antenna assembly 300 is installed on the antenna inner plate 22, the positioning posts 224 are also located on both sides of the housing 301, and both the positioning posts 224 and the positioning holes 302 can be multiple and can be connected one by one.

[0072] Along the height direction of the vehicle body, the heights of the positioning holes 302 on both sides of the housing 301 are different. Fig. 9 The height of the left positioning hole 302 is higher than the height of the right positioning hole 302. By staggering the height direction of the positioning holes 302, foolproof installation can be achieved.

[0073] The antenna assembly 300 can be pre-positioned on the antenna inner plate 22 by the cooperation of the positioning column 224 and the positioning hole 302. The limiting direction of the corresponding positioning column 224 and the positioning hole 302 is along the height direction of the vehicle body and / or along the width direction of the vehicle body to improve the accuracy of the installation position of the antenna assembly 300.

[0074] As an example, the matching clearance between the positioning column 224 and the positioning hole 302 is 0.05 mm-0.15 mm.

[0075] In some embodiments, a threaded hole 225 is provided on the antenna inner plate 22, and a mounting hole 303 is provided on the shell 301. The threaded hole 225 cooperates with the mounting hole 303 and is connected through a threaded assembly 400 to realize the connection between the antenna inner plate 22 and the shell 301, thereby realizing the installation of the antenna assembly 300 on the antenna inner plate 22.

[0076] The threaded holes 225 and the positioning columns 224 are arranged along the height direction of the vehicle body, and the mounting holes 303 and the positioning holes 302 are arranged along the height direction of the vehicle body; the mounting holes 303 are distributed on both sides of the shell 301, and the mounting holes 303 on both sides are staggered in the height direction; the threaded holes 225 are distributed on both sides of the shell 301, and the threaded holes 225 on both sides are staggered in the height direction.

[0077] In order to facilitate the assembly of the antenna assembly 300 and the antenna inner plate 22, some of the mounting holes 303 are waist-shaped holes along the width direction of the vehicle body. Setting the mounting holes 303 as waist-shaped holes can facilitate the installation of the antenna assembly 300, avoid the antenna assembly 300 not being able to correspond to all the mounting holes 303 due to installation errors, and improve assembly efficiency.

[0078] Figure 7 and Figure 8 The antenna inner plate 22 has a boss, and each boss has a connection hole 226, which is used to fix the plug-in 305. In order to improve the assembly efficiency of the plug-in 305, the connection hole 226 is a waist-shaped hole, and the plug-in 305 can be fixed in the connection hole 226 by a locking screw.

[0079] In some embodiments, the length of the waist-shaped hole in the extension direction may be set to 0.5 mm. Of course, it may also be other values ​​that meet installation requirements, such as 0.3 mm-1.0 mm, or even larger.

[0080] Combination Fig.11 As shown, the threaded assembly 400 in some embodiments includes a screw 401 and a spring nut 402. After the screw 401 is threadedly connected to the mounting hole 303 and the threaded hole 225, the screw 401 is locked by the spring nut 402 to prevent the screw 401 from being reversed and causing the connection failure, thereby improving the assembly stability of the antenna inner plate 22 and the antenna assembly 300, increasing the durability of the mounting point and facilitating replacement, and preventing the antenna assembly 300 from loosening and falling off under road conditions such as vehicle bumps.

[0081] It should be noted that the structure of the threaded assembly 400 includes but is not limited to the above disclosed contents, and may also be other structures that can realize threaded connection. Of course, the antenna inner plate 22 and the antenna assembly 300 are not limited to threaded connection, and may also be clamped or welded, etc., and all are within the scope of protection.

[0082] See also Figure 2As shown, the back door component in some embodiments includes an inner panel 200 and an outer panel 100, wherein the outer panel 100 includes a back door 1 and an antenna cover 2, and the outer panel 100 is covered on the outer side of the inner panel 200. It can be understood that the outer panel 100 is the entire outer surface of the back door. By setting the back door component as the inner panel 200 and the outer panel 100, the inner panel 200 can be used as a sheet metal part to increase the strength of the back door component, and the outer panel 100 can be used as an injection molded part to facilitate the shaping of the outer panel 100, thereby improving the appearance of the back door component and meeting different product requirements.

[0083] It should be noted that regardless of the number of layers of the tailgate composition and how the layers are formed, the improvements of the present application include setting a mounting groove 11 on the outer side of the tailgate 1, and sealing the antenna assembly 300 in the mounting groove 11 through the antenna cover 2. The outer surface of the antenna cover 2 and the outer surface of the tailgate 1 form the outer surface of the tailgate composition, which can be understood as the outer surface of the tailgate cover of the vehicle.

[0084] Since the antenna assembly 300 may run out of power during long-term use, the antenna assembly 300 may be unable to send or receive signals, affecting customer use; in addition, since the antenna cover 2 is bonded to the rear door 1 by glass glue, the glass glue is not easy to detach after solidification, and it is easy to scratch the paint surface of the rear door 1 when the glass glue is cut by steel wire, etc., which will extend the maintenance time and increase the maintenance cost, causing adverse effects on customers. Therefore, in order to facilitate after-sales maintenance of the antenna assembly 300, in the embodiment of the present application, maintenance holes are opened in the inner panel 200 and the outer panel 100 at positions opposite to the antenna assembly 300. Among them, Figure 4 A first maintenance hole 13 is provided on the back door 1. Figure 5 In the embodiment, a second maintenance hole 201 is provided on the inner plate 200. The shapes and sizes of the first maintenance hole 13 and the second maintenance hole 201 can be the same or different.

[0085] The gap between the maintenance tool and the inner plate 200 is ≥3.0 mm. At the same time, to facilitate the removal of the antenna assembly 300, the gap between the antenna cover 2 and the inner plate 200 is ≥ the height of the positioning column 224 protruding from the antenna cover 2 + 5.0 mm.

[0086] Since the antenna cover 2 is sealed to the rear door 1, water cannot enter between the antenna cover 2 and the rear door 1 during car washing or raining, and therefore, will not enter the trunk through the maintenance hole, thus satisfying the sealing requirement.

[0087] In addition, a vehicle is also disclosed in an embodiment of the utility model, including the tailgate assembly disclosed in the above embodiment. Therefore, the vehicle with the tailgate assembly also has all the above technical effects, which will not be described one by one here.

[0088] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0089] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle back door assembly, characterized in that: include: A tailgate, one end of which is rotatably connected to the rear of the roof of the vehicle body, and the other end of which is connectable to the tail plate of the vehicle, and the tailgate has a mounting groove; The antenna cover plate is sealed and connected to the installation groove in the circumference, and the antenna assembly is detachably installed between the antenna cover plate and the rear door.

2. The back door assembly according to claim 1, characterized in that: The circumference of the groove bottom of the installation groove and the circumference of the antenna cover plate are sealed and connected by a sealant; The connector of the back door connected to the antenna cover at the mounting groove is located at the outer circle of the sealant.

3. The back door assembly according to claim 2, characterized in that: The groove bottom of the installation groove and / or the antenna cover plate are coated with the sealant; And / or, the sealant includes glass glue.

4. The back door assembly according to claim 3, characterized in that: The sealant is a triangular rubber ring, and the width of the sealant gradually decreases from the bonding surface of the sealant to the free end.

5. The back door assembly according to claim 1, characterized in that: The antenna cover comprises: An antenna inner plate, the antenna inner plate is used to be connected to the mounting groove of the back door, the antenna inner plate has an avoidance hole, the antenna assembly is located in the avoidance hole and is fixedly connected to the antenna inner plate; The antenna outer plate is connected to the antenna inner plate and is used to shield the antenna inner plate.

6. The back door assembly according to claim 5, characterized in that: One of the antenna inner plate and the antenna assembly has a positioning column, and the other has a positioning hole; And / or, one of the antenna inner plate and the antenna assembly has a mounting hole, and part of the mounting hole is a waist-shaped hole along the width direction of the vehicle body.

7. The back door assembly according to claim 5, characterized in that: The antenna inner plate has a weight-reducing hole; And / or, the antenna inner plate is adhesively connected to the antenna outer plate; And / or, the outer surface of the antenna outer panel and the outer surface of the rear door form the outer surface of the rear door.

8. The tailgate assembly according to any one of claims 1 to 7, characterized in that: include: Inner panels; The outer panel includes the tailgate and the antenna cover, and the outer panel is connected to the inner panel. The outer panel cover is arranged on the outer side of the inner panel. Both the inner panel and the outer panel have maintenance holes opposite to the antenna assembly.

9. The tailgate assembly according to any one of claims 1 to 7, characterized in that: The antenna assembly is a 5G antenna assembly.

10. A vehicle, comprising a tailgate, characterized in that: The tailgate assembly is the tailgate assembly as claimed in any one of claims 1 to 9.

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