Tailgate assembly, tailgate, and vehicle

Abstract

The utility model discloses a tail door assembly, tail door and vehicle, tail door assembly includes inner plate, outer plate and at least one support piece, support piece with the inner plate integrated moulding, support piece with outer plate welding links to support the outer plate. The utility model discloses a tail door assembly through setting up at least one with the inner plate integrated moulding support piece between the inner plate and the outer plate, effectively improved the connecting stiffness between support piece and the inner plate, and support piece with outer plate welding links, effectively improved the connecting stiffness between support piece and the outer plate. The connecting mode of the support piece of the utility model embodiment avoids the mode of the traditional support rod connected through shock -absorbing glue, effectively improves the local and overall stiffness and mode of tail door, reduces the vibration of vehicle in the process of driving, reduces the risk of tail door and vehicle body interference. Since the stiffness of the tail door is improved, the noise and abnormal sound generated by vibration are reduced, thereby improving the acoustic environment in the passenger compartment and improving the ride comfort.

Description

Technical Field

[0001] This utility model relates to the field of vehicle tailgate technology, specifically to a tailgate assembly, a tailgate, and a vehicle. Background Technology

[0002] In related technologies, the tailgate of a vehicle is a closed space formed by welding an inner and outer tailgate panel together. However, this structure results in low stiffness and modal characteristics. During vehicle operation, problems such as tailgate interference with the body, abnormal noises, and low-frequency noise in the passenger compartment frequently occur, severely impacting ride comfort and vehicle performance. Related technologies have proposed connecting support rods between the inner and outer panels using damping rubber; however, the damping rubber has a low elastic modulus, limiting its improvement in stiffness. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model provide a tailgate assembly, a tailgate, and a vehicle.

[0005] The tailgate assembly of this utility model embodiment includes: an inner panel, an outer panel, and at least one support member. The support member is integrally formed with the inner panel and welded to the outer panel to support the outer panel.

[0006] This utility model's tailgate assembly effectively improves the connection stiffness between the support member and the inner panel by providing at least one integrally formed support member between the inner and outer panels. The support member is welded to the outer panel, further enhancing the connection stiffness. This method of connecting the support member avoids the traditional method of connecting support rods with damping adhesive, effectively improving the local and overall stiffness and modal stiffness of the tailgate, reducing vehicle vibration during driving, and lowering the risk of interference between the tailgate and the vehicle body. The increased tailgate stiffness reduces noise and rattles caused by vibration, thereby improving the acoustic environment of the passenger compartment and enhancing ride comfort.

[0007] Optionally, the support member is integrally formed with the inner plate by stamping.

[0008] Optionally, the support member has a first flange, which is fitted and welded to the outer plate; and / or the support member is provided with a first reinforcing rib.

[0009] Optionally, the inner plate includes a first lower edge, the first lower edge being provided with a locking reinforcement plate, the locking reinforcement plate having a second flange located between the first flange of the support member and the outer plate, the second flange being welded to the first flange and the outer plate respectively.

[0010] Optionally, the lock reinforcing plate has a mounting surface for installing a door lock, and the lock reinforcing plate is provided with a second reinforcing rib, the first end of the second reinforcing rib extending to the second flange, and the second end of the second reinforcing rib extending to the mounting surface.

[0011] Optionally, the locking reinforcement plate is further provided with a third flange, and the surface of the third flange facing the outer plate is provided with a first glue groove. The third flange is connected to the outer plate through shock-absorbing glue contained in the first glue groove.

[0012] Optionally, the inner panel includes a first side portion and a second side portion, the first side portion and the second side portion being located on both sides of the first lower side portion along the transverse direction of the inner panel, and at least one of the first side portion and the second side portion is provided with a strut reinforcing plate, the strut reinforcing plate having a fourth flange, the fourth flange being respectively attached to and welded to the inner panel and the outer panel.

[0013] Optionally, the strut reinforcing plate is provided with a fifth flange, and the surface of the fifth flange facing the outer plate is provided with a second glue groove. The fifth flange is connected to the outer plate through shock-absorbing glue contained in the second glue groove.

[0014] Optionally, the outer panel has a first edging, the strut reinforcing plate has a sixth flange, the inner panel has a seventh flange, the sixth flange and the seventh flange are fitted together, at least a portion of the fitted portion of the sixth flange and the seventh flange extends into the first edging, and the first edging, the sixth flange and the seventh flange are welded together with each other.

[0015] Optionally, the strut reinforcement plate is provided with a weight reduction groove.

[0016] Optionally, the inner panel further includes a first upper side portion, the two ends of which are respectively connected to the first side portion and the second side portion. A hinge reinforcement plate for mounting a hinge is provided at the intersection of the first upper side portion and at least one of the first side portion and the second side portion. The hinge reinforcement plate is provided with an eighth flange, which is respectively attached to and welded to the inner panel and the outer panel.

[0017] Optionally, the hinge reinforcement plate has a first mounting portion and a second mounting portion arranged at intervals for mounting the hinge, and the hinge reinforcement plate is provided with a third reinforcing rib located at the first mounting portion and the second mounting portion, the extension direction of the third reinforcing rib intersecting the interval direction of the first mounting portion and the second mounting portion.

[0018] Optionally, the outer panel has a second edging, the hinge reinforcement plate has a ninth flange, the inner panel has a tenth flange, the ninth flange and the tenth flange are attached together, at least a portion of the attachment portion of the ninth flange and the tenth flange extends into the second edging, and the second edging, the ninth flange and the tenth flange are welded together with each other.

[0019] Optionally, the inner plate is provided with a flanged hole, and the flange of the flanged hole is located on the side of the inner plate facing the outer plate.

[0020] The tailgate of this utility model embodiment includes the tailgate assembly described in any of the above embodiments.

[0021] The vehicle of this utility model embodiment includes the tailgate described in any of the above embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the installation of the support member, lock reinforcement plate, strut reinforcement plate and hinge reinforcement plate on the inner plate according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram showing the connection between the first flange, the second flange, and the outer panel in an embodiment of this utility model.

[0024] Figure 3 This is a schematic diagram showing the connection of the sixth flange, the seventh flange, and the first edge in an embodiment of this utility model.

[0025] Figure 4 This is a schematic diagram showing the connection of the ninth flange, the tenth flange, and the second edge in an embodiment of this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the flange hole in an embodiment of the present invention.

[0027] Figure label:

[0028] 1. Inner panel; 101. First lower edge; 102. First side edge; 103. Second side edge; 104. Seventh flange; 105. First upper edge; 106. Tenth flange; 107. Flanged hole; 2. Outer panel; 201. First edging; 202. Second edging; 3. Support member; 301. First flange; 302. First reinforcing rib; 4. Locking reinforcing plate; 401. Second flange; 402. Installation... 403, Second reinforcing rib; 404, Third flange; 4041, First glue groove; 5, Support rod reinforcing plate; 501, Fourth flange; 502, Fifth flange; 5021, Second glue groove; 503, Sixth flange; 504, Weight reduction groove; 6, Hinge reinforcing plate; 601, Eighth flange; 602, First mounting part; 603, Second mounting part; 604, Third reinforcing rib; 605, Ninth flange. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1 to 5 As shown, the tailgate assembly of this utility model embodiment includes an inner panel 1, an outer panel 2 and at least one support member 3. The support member 3 is integrally formed with the inner panel 1 and is welded to the outer panel 2 to support the outer panel 2.

[0031] For example, such as Figure 1 As shown, the inner plate 1 is provided with multiple spaced support members 3.

[0032] The tailgate assembly of this embodiment effectively improves the connection stiffness between the support member 3 and the inner panel 1 by providing at least one support member 3 integrally formed with the inner panel 1 between the inner panel 1 and the outer panel 2. The support member 3 is welded to the outer panel 2, further enhancing the connection stiffness between them. The connection method of the support member 3 in this embodiment avoids the traditional method of connecting support rods with damping adhesive, effectively improving the local and overall stiffness and modal stiffness of the tailgate, reducing vibration during vehicle operation, and lowering the risk of interference between the tailgate and the vehicle body. Due to the increased stiffness of the tailgate, noise and abnormal sounds caused by vibration are reduced, thereby improving the acoustic environment in the passenger compartment and enhancing ride comfort.

[0033] Optionally, the support member 3 is integrally formed with the inner plate 1 by stamping.

[0034] The stamping process offers high precision, ensuring accurate matching of the geometry and dimensions of the support component 3 and the inner panel 1, thereby improving the overall assembly quality of the tailgate assembly. Since the support component 3 and the inner panel 1 are integrally formed, their connection is stronger, enhancing the overall structural strength of the tailgate assembly. The integral forming process optimizes material usage, reduces unnecessary material waste, and helps reduce the weight of the tailgate assembly, potentially lowering the overall vehicle weight and improving fuel efficiency. The integral forming process reduces the number of parts and assembly steps, simplifying the manufacturing process and helping to lower production costs. Due to the stronger connection between the support component 3 and the inner panel 1, this structural design improves the durability of the tailgate assembly, reducing maintenance and replacement due to connection failures. The integral forming process helps improve production efficiency because it reduces the manufacturing and assembly time of individual parts.

[0035] In some embodiments, the support member 3 has a first flange 301, which is attached to and welded to the outer plate 2.

[0036] The first flange 301 on the support member 3 increases the contact area with the outer plate 2, providing more welding points and thus enhancing the stability of the welded connection. The close welding of the flange to the outer plate 2 makes the connection more robust, helps to withstand various mechanical loads generated during vehicle operation, and reduces the risk of fatigue damage caused by vibration.

[0037] In some embodiments, the support member 3 is provided with a first reinforcing rib 302.

[0038] The reinforcing ribs increase the stiffness of the support member 3, which is particularly important for withstanding localized loads, such as the impact force generated when the vehicle closes the tailgate. The presence of the reinforcing ribs reduces the deformation of the support member 3 under load, maintaining the geometric stability of the tailgate assembly. Because the reinforcing ribs increase the fatigue life of the support member 3, the durability of the entire tailgate assembly is also improved. The reinforcing ribs help to distribute and transfer stress more evenly, reducing stress concentration and thus lowering the risk of damage caused by stress concentration.

[0039] In some embodiments, the inner plate 1 includes a first lower edge 101, and the first lower edge 101 is provided with a locking reinforcing plate 4. The locking reinforcing plate 4 has a second flange 401 located between the first flange 301 of the support member 3 and the outer plate 2, and the second flange 401 is welded to the first flange 301 and the outer plate 2 respectively.

[0040] like Figure 1 and Figure 2 As shown, a lock reinforcement plate 4 is added to the first lower edge 101 of the inner panel 1, which helps to improve the local rigidity of the tailgate lock area. The lock reinforcement plate 4 has a second flange 401, which is located between the first flange 301 of the support member 3 and the outer panel 2, forming an additional connection point and support structure, further improving the rigidity of the tailgate at this point, helping to reduce deformation when the tailgate is closed and opened, and ensuring the stability of the lock.

[0041] Optionally, the lock reinforcing plate 4 has a mounting surface 402 for mounting a door lock, and the lock reinforcing plate 4 is provided with a second reinforcing rib 403, the first end of the second reinforcing rib 403 extending to the second flange 401, and the second end of the second reinforcing rib 403 extending to the mounting surface 402.

[0042] The second reinforcing rib 403 increases the overall rigidity of the lock reinforcing plate 4, especially near the door lock mounting surface 402, helping to prevent deformation caused by external forces. Because the mounting surface 402 is reinforced, the door lock is more securely fixed, improving tailgate security. The reinforcing rib helps distribute stress in the lock area, reducing stress concentration caused by door lock operations (such as closing and opening the tailgate). Due to the reinforced structure of the lock area, the durability of the entire tailgate assembly is improved, reducing repairs and replacements due to fatigue damage. The reinforced lock area helps reduce noise generated by tailgate vibration, improving the vehicle's NVH performance. It also reduces abnormal noises caused by structural loosening or deformation in the tailgate area, improving passenger comfort.

[0043] Optionally, the locking reinforcing plate 4 is also provided with a third flange 404, and the surface of the third flange 404 facing the outer plate 2 is provided with a first glue groove 4041. The third flange 404 is connected to the outer plate 2 through the shock-absorbing glue contained in the first glue groove 4041.

[0044] The damping adhesive on the third flange 404 provides flexibility to the connection, helping to absorb and reduce vibrations and shocks generated during vehicle operation. The combination of the third flange 404 and the damping adhesive provides a stable connection while reducing connection fatigue caused by vibration. The use of damping adhesive helps reduce noise and vibration, thereby improving the vehicle's NVH performance and enhancing the passenger experience. The third flange 404 and damping adhesive provide a layer of protection for the outer panel 2, reducing the risk of the outer panel 2 being directly subjected to impacts. Because the damping adhesive can mitigate vibrations and shocks, this design helps improve the durability of the tailgate assembly, reducing the need for maintenance and replacement.

[0045] In some embodiments, the inner panel 1 includes a first side portion 102 and a second side portion 103, which are located on both sides of the first lower side portion 101 along the transverse direction of the inner panel 1. At least one of the first side portion 102 and the second side portion 103 is provided with a strut reinforcing plate 5. The strut reinforcing plate 5 has a fourth flange 501, which is respectively attached to and welded to the inner panel 1 and the outer panel 2.

[0046] For example, such as Figure 1 As shown, both the first side portion 102 and the second side portion 103 are provided with strut reinforcing plates 5.

[0047] The strut reinforcement plate 5 increases the local stiffness of the tailgate side area, helping to reduce deformation under lateral forces. The welded connection of the fourth flange 501 to the inner panel 1 and outer panel 2 increases the stability of the welded structure and reduces the risk of fatigue fracture due to vibration. The strut reinforcement plate 5 helps to distribute forces more evenly in the tailgate side area, reducing stress caused by force concentration. The reinforced side structure improves the durability of the tailgate assembly and increases vehicle safety in a collision. Due to the more robust structure in the side area, the vehicle experiences fewer abnormal noises and vibrations caused by loosening or deformation of the side structure during driving. Better structural integrity helps reduce noise and vibration, thereby improving the vehicle's NVH performance.

[0048] Optionally, the strut reinforcing plate 5 is provided with a fifth flange 502, and a second glue groove 5021 is provided on the surface of the fifth flange 502 facing the outer plate 2. The fifth flange 502 is connected to the outer plate 2 through the shock-absorbing glue contained in the second glue groove 5021.

[0049] The damping adhesive on the fifth flange 502 provides flexibility to the connection, helping to absorb and reduce vibrations and shocks generated during vehicle operation. The combination of the fifth flange 502 and the damping adhesive provides a stable connection while reducing connection fatigue caused by vibration. The use of damping adhesive helps reduce noise and vibration, thereby improving the vehicle's NVH performance and enhancing the passenger experience. The fifth flange 502 and damping adhesive provide a layer of protection for the outer panel 2, reducing the risk of the outer panel 2 being directly subjected to impacts. Because the damping adhesive can mitigate vibrations and shocks, this design helps improve the durability of the tailgate assembly, reducing the need for maintenance and replacement.

[0050] In some embodiments, such as Figure 3 As shown, the outer panel 2 has a first edging 201, the strut reinforcing plate 5 has a sixth flange 503, and the inner panel 1 has a seventh flange 104. The sixth flange 503 and the seventh flange 104 are fitted together, and at least a portion of the fitted portion of the sixth flange 503 and the seventh flange 104 extends into the first edging 201. The first edging 201, the sixth flange 503, and the seventh flange 104 are welded together with each other.

[0051] The first edge 201 of the outer panel 2 is welded to the sixth flange 503 of the strut reinforcing plate 5 and the seventh flange 104 of the inner panel 1, forming a three-layer reinforced edge structure, which improves the rigidity of the outer panel 2. Due to the increased rigidity of the outer panel 2, the noise and abnormal sounds caused by the vibration of the outer panel 2 are reduced during vehicle operation, thereby improving the vehicle's NVH performance.

[0052] Optionally, the strut reinforcement plate 5 is provided with a weight reduction groove 504.

[0053] like Figure 1As shown, the weight-reducing groove 504 on the strut reinforcement plate 5 is designed to reduce the amount of material used, thereby reducing weight without affecting the overall strength and function of the structure. This helps to reduce the weight of the tailgate assembly, lower costs, and improve the vehicle's fuel efficiency.

[0054] In some embodiments, the inner plate 1 further includes a first upper edge portion 105, the two ends of which are connected to a first side edge portion 102 and a second side edge portion 103, respectively. A hinge reinforcing plate 6 for mounting a hinge is provided at the intersection of the first upper edge portion 105 and at least one of the first side edge portion 102 and the second side edge portion 103. The hinge reinforcing plate 6 is provided with an eighth flange 601, which is attached to and welded to the inner plate 1 and the outer plate 2, respectively.

[0055] like Figure 1 As shown, the addition of hinge reinforcement plate 6 increases the local stiffness of the tailgate hinge area, helping to reduce deformation during opening and closing of the tailgate and ensuring hinge stability. The welded connection of the eighth flange 601 to the inner panel 1 and outer panel 2 increases connection reliability and reduces the risk of fatigue fracture due to vibration. The reinforced hinge area structure improves the durability of the tailgate assembly and increases vehicle safety in a collision. Hinge reinforcement plate 6 helps to distribute forces more evenly in the hinge area, reducing stress caused by force concentration. Due to the increased stiffness of the hinge area, the vehicle experiences less rattling and vibration caused by structural loosening or deformation when opening and closing the tailgate. Better structural integrity helps reduce noise and vibration, thereby improving the vehicle's NVH performance.

[0056] Optionally, the hinge reinforcement plate 6 has a first mounting portion 602 and a second mounting portion 603 arranged at intervals for mounting the hinge, and the hinge reinforcement plate 6 is provided with a third reinforcing rib 604 located on the first mounting portion 602 and the second mounting portion 603, the extension direction of the third reinforcing rib 604 intersecting the interval direction of the first mounting portion 602 and the second mounting portion 603.

[0057] The addition of the third reinforcing rib 604 increases the rigidity of the mounting area, helping to prevent deformation caused by forces during hinge operation. The intersecting extension directions of the reinforcing ribs help distribute forces more evenly within the mounting area, reducing stress concentration. This increased rigidity enhances the durability of the tailgate assembly, improving vehicle safety. The increased rigidity of the hinge mounting area also reduces rattles and vibrations caused by structural loosening or deformation when opening and closing the tailgate. Improved structural integrity further reduces noise and vibration, thus improving the vehicle's NVH performance.

[0058] Optionally, the outer panel 2 has a second edging 202, the hinge reinforcement plate 6 has a ninth flange 605, and the inner panel 1 has a tenth flange 106. The ninth flange 605 and the tenth flange 106 are attached to each other, and at least a portion of the attached portion of the ninth flange 605 and the tenth flange 106 extends into the second edging 202. The second edging 202, the ninth flange 605 and the tenth flange 106 are welded together with each other.

[0059] like Figure 4 As shown, the second edge 202 of the outer panel 2 is welded to the ninth flange 605 of the hinge reinforcement plate 6 and the tenth flange 106 of the inner panel 1, forming a three-layer reinforced edge structure, which helps to improve the rigidity of the outer panel 2. Due to the increased rigidity of the outer panel 2, the noise and abnormal sounds caused by the vibration of the outer panel 2 are reduced when the vehicle opens and closes the tailgate. The improved outer panel 2 structure helps to reduce noise and vibration, thereby improving the vehicle's NVH performance.

[0060] In some embodiments, the inner plate 1 is provided with a flanged hole 107, and the flange of the flanged hole 107 is located on the side of the inner plate 1 facing the outer plate 2. The flanged hole 107 can prevent the inner plates 1 from stacking together, prevent the problem of difficult separation during subsequent transportation, transfer, welding and part removal, and improve manufacturing efficiency.

[0061] This utility model discloses a tailgate, including the tailgate assembly in any of the above embodiments.

[0062] This utility model also discloses a vehicle including the tailgate of any of the above embodiments.

[0063] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tailgate assembly, characterized in that, include: The device comprises an inner plate, an outer plate, and at least one support member, wherein the support member is integrally formed with the inner plate by stamping, the inner plate includes a first lower edge, the first lower edge is provided with a locking reinforcing plate, the support member has a first flange, and the inner plate is welded to the outer plate through the locking reinforcing plate and the first flange.

2. The tailgate assembly according to claim 1, characterized in that, The support member is provided with a first reinforcing rib.

3. The tailgate assembly according to claim 2, characterized in that, The locking reinforcement plate has a second flange located between the first flange of the support member and the outer plate, and the second flange is welded to the first flange and the outer plate respectively.

4. The tailgate assembly according to claim 3, characterized in that, The lock reinforcement plate has a mounting surface for installing a door lock, and the lock reinforcement plate is provided with a second reinforcing rib, the first end of the second reinforcing rib extending to the second flange, and the second end of the second reinforcing rib extending to the mounting surface.

5. The tailgate assembly according to claim 3, characterized in that, The locking reinforcement plate is also provided with a third flange, and the surface of the third flange facing the outer plate is provided with a first glue groove. The third flange is connected to the outer plate through shock-absorbing glue contained in the first glue groove.

6. The tailgate assembly according to claim 3, characterized in that, The inner panel includes a first side portion and a second side portion, which are located on both sides of the first lower side portion along the transverse direction of the inner panel. At least one of the first side portion and the second side portion is provided with a support rod reinforcing plate, which has a fourth flange. The fourth flange is respectively attached to and welded to the inner panel and the outer panel.

7. The tailgate assembly according to claim 6, characterized in that, The support rod reinforcing plate is provided with a fifth flange, and the surface of the fifth flange facing the outer plate is provided with a second glue groove. The fifth flange is connected to the outer plate through shock-absorbing glue contained in the second glue groove.

8. The tailgate assembly according to claim 6, characterized in that, The outer panel has a first edging, the strut reinforcing plate has a sixth flange, the inner panel has a seventh flange, the sixth flange and the seventh flange are attached together, at least a portion of the attached portion of the sixth flange and the seventh flange extends into the first edging, and the first edging, the sixth flange and the seventh flange are welded together with each other.

9. The tailgate assembly according to claim 6, characterized in that, The strut reinforcement plate is provided with a weight reduction groove.

10. The tailgate assembly according to claim 6, characterized in that, The inner panel further includes a first upper side portion, the two ends of which are respectively connected to the first side portion and the second side portion. A hinge reinforcement plate for mounting a hinge is provided at the intersection of the first upper side portion and at least one of the first side portion and the second side portion. The hinge reinforcement plate is provided with an eighth flange, which is respectively attached to and welded to the inner panel and the outer panel.

11. The tailgate assembly according to claim 10, characterized in that, The hinge reinforcement plate has a first mounting portion and a second mounting portion arranged at intervals for mounting the hinge. The hinge reinforcement plate is provided with a third reinforcing rib located at the first mounting portion and the second mounting portion. The extending direction of the third reinforcing rib intersects the spacing direction of the first mounting portion and the second mounting portion.

12. The tailgate assembly according to claim 10, characterized in that, The outer panel has a second edging, the hinge reinforcement plate has a ninth flange, the inner panel has a tenth flange, the ninth flange and the tenth flange are attached together, at least a portion of the attachment portion of the ninth flange and the tenth flange extends into the second edging, and the second edging, the ninth flange and the tenth flange are welded together with each other.

13. The tailgate assembly according to claim 1, characterized in that, The inner plate is provided with a flange hole, and the flange of the flange hole is located on the side of the inner plate facing the outer plate.

14. A tailgate, characterized in that, Includes the tailgate assembly as described in any one of claims 1-12.

15. A vehicle, characterized in that, Includes the tailgate as described in claim 14.

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