Rear tail door assembly and vehicle

By introducing a buffer component into the tailgate assembly and connecting it to the lock body to form multiple force transmission channels, and combining it with a reinforced flange structure, the noise and structural deformation problems when the tailgate is locked are solved, improving the comfort and durability of the entire vehicle.

CN223590516UActive Publication Date: 2025-11-25GREAT WALL MOTOR CO LTD
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Patent Information

Application Number
CN202520125461.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-11-25
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

The tailgate of the vehicle generates significant noise and abnormal sounds during the locking process, and its structure is prone to deformation after prolonged use, affecting the overall comfort of the vehicle.

Method used

The system uses a buffer component connected to the lock body and the upper tailgate assembly to form multiple force transmission channels, dispersing the impact force of the lock body and the latch. Combined with a reinforced flange structure, it improves the rigidity of the outer panel and avoids noise and structural deformation.

Benefits of technology

It effectively reduces noise and rattles when the tailgate is locked, extends the durability of the structure, and improves the overall sound quality and durability of the vehicle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223590516U_ABST
Patent Text Reader

Abstract

The utility model discloses a rear tail door assembly and a vehicle, and the rear tail door assembly comprises an upper tail door assembly which is connected with a lock body and is rotatably connected with a vehicle body; the lower tail door assembly is rotationally connected with a vehicle body and located below the upper tail door assembly, a lock catch is arranged on the lower tail door assembly, and the lock body and the lock catch are selectively locked; the buffer piece is connected with the lock body and the upper tail door assembly, and the buffer piece is selectively connected with the lower tail door assembly in an abutting mode. When the lock body and the lock catch are locked, impact force generated when the upper tail door assembly makes contact with the lower tail door assembly can be dispersed through the lock body, the lock catch and the buffering piece, large noise and abnormal sound are prevented from being generated when the rear tail door assembly is locked, and structural deformation caused by fatigue aging after long-time use is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to a rear door assembly and vehicle. BACKGROUND

[0002] Vehicle can bring great convenience for people's life and work, at present, in order to facilitate the carrying of luggage, the tail of the vehicle body is provided with a spare trunk, and usually two tail doors are provided to meet the loading requirements of different occasions.

[0003] In the opening and closing process of the rear tail door structure of the vehicle body, when the door lock and the lock catch are locked, vibration occurs due to impact, and the noise and abnormal sound are large, and after long-term durability, the locking position is deformed, and the problem of difficult cooperation occurs, the noise and abnormal sound are increased, and the comfort perception of the whole vehicle is affected.

[0004] In addition, the middle and lower regions of the rear tail door outer plate generally provide mounting points for the rear license plate bracket, when the license plate bracket is installed and tightened, the region is deformed under stress, and the rear door structure interference and abnormal sound problem caused by large deformation of the outer door outer plate when installing the license plate is prone to occur. SUMMARY

[0005] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a rear tail door assembly, when the lock body and the lock catch are locked, the impact force of the upper tail door assembly and the lower tail door assembly in contact can be dispersed through the lock body-lock catch and the buffer, so as to avoid large noise and abnormal sound when the rear tail door assembly is locked, and avoid structural deformation caused by fatigue aging after long-term use.

[0006] The utility model further provides a vehicle.

[0007] According to the rear tail door assembly of the first aspect embodiment of the utility model, the upper tail door assembly is connected with the lock body and is rotatably connected with the vehicle body, the lower tail door assembly is rotatably connected with the vehicle body and is located below the upper tail door assembly, the lock catch is arranged on the lower tail door assembly, the lock body and the lock catch are selectively locked, the buffer is connected with the lock body and the upper tail door assembly, and the buffer selectively abuts against the lower tail door assembly.

[0008] According to the rear tail door assembly of the utility model embodiment, when the lock body and the lock catch are locked, the impact force of the upper tail door assembly and the lower tail door assembly in contact can be dispersed through the lock body-lock catch and the buffer, so as to avoid large noise and abnormal sound when the rear tail door assembly is locked, and avoid structural deformation caused by fatigue aging after long-term use.

[0009] According to some embodiments of the present application, the buffer member is at least two, and the at least two buffer members are arranged along the width direction of the vehicle.

[0010] According to some embodiments of the present application, a rubber member is arranged on the buffer member, and the rubber member selectively abuts against the lower tail door assembly.

[0011] According to some embodiments of the present application, the rear tail door assembly further comprises a door lock mounting plate, the door lock mounting plate is connected with the upper tail door assembly, a lock body is arranged on the door lock mounting plate, and the buffer member is connected with the door lock mounting plate and the upper tail door assembly.

[0012] According to some embodiments of the present application, the upper tail door assembly comprises an upper tail door inner plate and an upper tail door outer plate connected with each other, the door lock mounting plate is connected with the upper tail door inner plate, and the buffer member is connected with the door lock mounting plate and the upper tail door inner plate.

[0013] According to some embodiments of the present application, the door lock mounting plate comprises a body and a first reinforcing flange, the first reinforcing flange extends towards the upper tail door outer plate, one end of the first reinforcing flange is connected with the first plate part, and the other end is connected with the upper tail door outer plate.

[0014] According to some embodiments of the present application, the first reinforcing flange comprises a first extension part and a first flange part, one end of the extension part is connected with the body, one end of the first flange part is in communication with the other end of the extension part, and the other end is connected with the upper tail door outer plate.

[0015] According to some embodiments of the present application, a second reinforcing flange is arranged on the upper tail door inner plate, the second reinforcing flange extends towards the upper tail door outer plate, one end of the second reinforcing flange is connected with the upper tail door inner plate, and the other end is connected with the upper tail door outer plate.

[0016] According to some embodiments of the present application, the second reinforcing flange comprises a second extension part and a second flange part, one end of the second flange part is connected with the second extension part, and the other end is connected with the upper tail door outer plate.

[0017] The vehicle according to the second aspect of the present application comprises the rear tail door assembly.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings of which:

[0020] Figure 1 is a structural schematic view of one direction of the tail gate assembly according to an embodiment of the present utility model;

[0021] Figure 2 is a structural schematic view of another direction of the tail gate assembly according to an embodiment of the present utility model;

[0022] Figure 3 is an exploded view of one direction of the tail gate assembly according to an embodiment of the present utility model;

[0023] Figure 4 is an exploded view of another direction of the tail gate assembly according to an embodiment of the present utility model;

[0024] Figure 5 is a structural schematic view of the tail gate assembly according to an embodiment of the present utility model;

[0025] Figure 6 is a structural schematic view of the door lock mounting plate according to an embodiment of the present utility model;

[0026] Figure 7 is a structural schematic view of the buffer according to an embodiment of the present utility model.

[0027] Reference signs:

[0028] 100, tail gate assembly;

[0029] 10, tail gate assembly; 11, tail gate inner plate; 12, tail gate outer plate; 13, second reinforcing flange;

[0030] 20, tail gate assembly;

[0031] 31, buffer; 311, first mounting hole; 32, door lock mounting plate; 321, second mounting hole; 33, body; 34, first reinforcing flange; 341, first extension; 342, first flange part; 35, lock body; 36, lock catch. DETAILED DESCRIPTION

[0032] The embodiments of the present utility model are described in detail below, and the embodiments described with reference to the drawings are exemplary, and the embodiments of the present utility model are described in detail below.

[0033] The embodiments of the present utility model are described below with reference to Figures 1-7 The tail gate assembly 100 according to an embodiment of the present utility model is described below, and a vehicle including the above tail gate assembly 100 is also proposed.

[0034] As Figures 1-4As shown, the rear tail door assembly 100 comprises: an upper tail door assembly 10 and a lower tail door assembly 20, the upper tail door assembly 10 is rotatably connected with the vehicle body, the lower tail door assembly 20 is rotatably connected with the vehicle body, and the lower tail door assembly 20 is located below the upper tail door assembly 10. That is, the upper tail door assembly 10 and the lower tail door assembly 20 can design the rear tail door of the vehicle as two sections, and the upper tail door assembly 10 and the lower tail door assembly 20 can realize the opening or closing of the trunk. When the upper tail door assembly 10 and the lower tail door assembly 20 are connected, the trunk is closed; when the trunk needs to be opened, the upper tail door assembly 10 and the lower tail door assembly 20 are separated, the upper tail door assembly 10 rotates upward relative to the vehicle body, and the lower tail door assembly 20 rotates downward relative to the vehicle body, thereby opening the trunk.

[0035] As shown in Figure 3 and Figure 4 The upper tail door assembly 10 is connected with a lock body 35, and the lower tail door assembly 20 is provided with a lock catch 36, and the lock body 35 and the lock catch 36 are selectively locked. Specifically, when the lock body 35 and the lock catch 36 are locked, the upper tail door assembly 10 and the lower tail door assembly 20 are in a locked state, and the trunk is closed; when the lock body 35 and the lock catch 36 are unlocked, the upper tail door assembly 10 rotates upward relative to the vehicle body, and the lower tail door assembly 20 rotates downward relative to the vehicle body, thereby opening the trunk.

[0036] Further, the rear tail door assembly 100 further comprises: a buffer 31, the buffer 31 is connected with the lock body 35 and the upper tail door assembly 10, and the buffer 31 selectively abuts against the lower tail door assembly 20. Specifically, the lock body 35 is arranged in the upper tail door assembly 10, one side of the buffer 31 is sequentially connected with the upper tail door assembly 10 and the lock body 35, and the other side of the buffer 31 abuts against the lower tail door assembly 20 during the locking process of the lock body 35 and the lock catch 36 during the closing process of the rear tail door assembly 100, which can buffer the impact when the lock body 35 and the lock catch 36 are connected; when the rear tail door assembly 100 is opened, the buffer 31 does not abut against the lower tail door assembly 20.

[0037] In the related art, when the rear tail door assembly is opened and closed, the door lock is engaged with the lock catch to lock the tail door, and the upper tail door assembly and the lower tail door assembly are only connected through a point of the door lock and the lock catch, so that the impact force generated when the upper tail door assembly and the lower tail door assembly are closed at a certain speed is integrated at the point in the connection area, and if there is no other force transmission dispersion channel, a large noise and abnormal sound are generated, and after a long time of use, the deformation of the metal sheet and the accessories caused by the fatigue aging is avoided.

[0038] In the present scheme, the buffer 31 is connected with the lock body 35 and the upper tail door assembly 10, and multiple force transmission channels can be formed, for example, the lock body 35-lock catch 36 forms a force transmission channel, and the buffer 31 forms a force transmission channel between the lock body 35 and the lower tail door assembly 20. Thus, when the lock body 35 and the lock catch 36 are locked, the force is dispersed through multiple force transmission channels, avoiding vibration, abnormal sound, and structural deformation problems when the rear tail door assembly 100 is locked.

[0039] When the lock body 35 and the lock catch 36 are locked, the impact force of the upper tail door assembly 10 contacting the lower tail door assembly 20 can be dispersed through the two force transmission channels of the lock body 35-lock catch 36 and the buffer 31, avoiding the generation of large noise and abnormal sound when the rear tail door assembly 100 is locked, and avoiding structural deformation caused by fatigue aging after long-term use.

[0040] Further, the buffer 31 is at least two, and the at least two buffers 31 are spaced apart along the width direction of the vehicle. Specifically, the buffer 31 can be two, and the two buffers 31 are spaced apart along the width direction, and the two buffers 31 can be respectively located on both sides of the lock body 35, which can uniformly disperse the force of the cooperation area of the lock body 35 and the lock catch 36, avoiding local stress and structural deformation.

[0041] In combination with the Figure 3 , Figure 4 and Figure 7 , the buffer 31 is provided with a rubber piece, which selectively abuts against the lower tail door assembly 20. Specifically, the buffer 31 includes a body 33 and a rubber piece, and the body 33 can be made of sheet metal. The body 33 is connected with the lock body 35 and the upper tail door assembly 10, and the body 33 can be made of sheet metal to ensure the connection reliability of the buffer 31 with the lock body 35 and the upper tail door assembly 10. The side of the buffer 31 facing the lower tail door assembly 20 can be provided with a rubber piece, which can buffer the locking force of the upper tail door assembly 10 and the lower tail door assembly 20, avoiding the generation of large noise and abnormal sound when the rear tail door assembly 100 is locked.

[0042] The rear tail door assembly 100 further includes a door lock mounting plate 32, the door lock mounting plate 32 is connected with the upper tail door assembly 10, and the lock body 35 is arranged on the door lock mounting plate 32. The buffer 31 is connected with the door lock mounting plate 32 and the upper tail door assembly 10. Specifically, the door lock mounting plate 32 is connected with the upper tail door assembly 10, the lock body 35 is mounted on the door lock mounting plate 32, and the left and right sides below the door lock mounting plate 32 are extended to provide mounting points for the buffer 31, reducing the number of parts and improving the installation accuracy of the buffer 31.

[0043] The buffer 31 is provided with a first mounting hole 311, and the door lock mounting plate 32 is provided with a second mounting hole 321. The first fastener is fixedly connected with the door lock mounting plate 32 after penetrating through the first mounting hole 311, the upper tail door inner plate 11 and the second mounting hole 321.

[0044] For example, the buffer 31 can be two, and the two buffers 31 are respectively located on the left side and the right side of the lock body 35. The door lock mounting plate 32 extends a certain distance on the left side and the right side below, and the mounting point of the buffer 31 is arranged at the extension position. Correspondingly, the upper tail door assembly 10 is arranged with two symmetrical buffers 31 at the corresponding area of the mounting point. In the closed state of the upper tail door assembly 10 and the lower tail door assembly 20, three force bearing points are formed in the cooperation area of the lock body 35 and the lock catch 36 of the rear tail door assembly 100, that is, three force transmission channels are formed in the height direction of the cooperation area of the lock body 35 and the lock catch 36 of the upper tail door assembly 10 and the lower tail door assembly 20: the lock body 35-lock catch 36 engagement channel, the left buffer 31 cooperation channel and the right buffer 31 cooperation channel. When the rear tail door assembly 100 is locked, the force is dispersed, the stress of a single engagement point is reduced, the stress deformation and abnormal sound are reduced, the sound quality, durability and delicate perception of the whole vehicle are improved; at the same time, the lock body 35 and the two buffers 31 are installed on the door lock mounting plate 32, which realizes the demand of integrated installation of various accessories, ensures the installation and cooperation precision, and reduces the cost and weight.

[0045] As shown in Figure 5 The upper tail door assembly 10 includes the upper tail door inner plate 11 and the upper tail door outer plate 12 connected with each other, the door lock mounting plate 32 connected with the upper tail door inner plate 11, and the buffer 31 connected with the door lock mounting plate 32 and the upper tail door inner plate 11. Specifically, the door lock mounting plate 32 is arranged in the upper tail door assembly 10, and the door lock mounting plate 32 is connected with the upper tail door inner plate 11. The buffer 31 is sequentially connected with the door lock mounting plate 32 and the upper tail door inner plate 11. When the lock body 35 and the lock catch 36 are locked, the locking force of the upper tail door assembly 10 and the lower tail door assembly 20 is dispersed to the buffer 31 through the door lock mounting plate 32, so as to avoid large noise and abnormal sound when the rear tail door assembly 100 is locked, and avoid structural deformation caused by fatigue aging after long-term use.

[0046] In the related art, the lower area of the upper tail door outer plate generally provides a mounting point for the rear license plate bracket. When the license plate bracket is installed and tightened, the area is deformed under stress, which is prone to cause the problems of interference of the back door structure and abnormal sound caused by large deformation of the outer door outer plate when the license plate is installed.

[0047] Therefore, in some embodiments of the utility model, the door lock mounting plate 32 comprises: a body 33 and a first reinforcing flange 34, the first reinforcing flange 34 extends towards the upper tail door outer plate 12, one end of the first reinforcing flange 34 is connected with the body 33 and the other end is connected with the upper tail door outer plate 12. Specifically, the body 33 is connected with the upper tail door inner plate 11, the lock body 35 is installed on the body 33, the first reinforcing flange 34 is connected between the body 33 and the upper tail door outer plate 12, the first reinforcing flange 34 is designed in the license plate area of the door lock mounting plate 32, which can be connected with the upper tail door outer plate 12 through the shock expansion adhesive, thereby improving the rigidity of the outer plate in this area. The door lock mounting plate 32 provides support for the upper tail door outer plate 12, and the first reinforcing flange 34 can be two, the two first reinforcing flanges 34 are symmetrically arranged about the YZ plane of the vehicle body, ensuring the denting stiffness performance of the upper tail door outer plate 12 in this area.

[0048] As shown in Figure 6 The first reinforcing flange 34 comprises: a first extension 341 and a first flange portion 342, one end of the first extension 341 is connected with the body 33, one end of the first flange portion 342 is communicated with the other end of the extension and the other end is connected with the upper tail door outer plate 12. Specifically, the first extension 341 extends between the upper tail door inner plate 11 and the upper tail door outer plate 12, the first flange portion 342 is connected with the first extension 341, and the first flange portion 342 is bent relative to the first extension 341 to abut against the upper tail door outer plate 12, ensuring the contact area of the first flange portion 342 with the upper tail door outer plate 12, and the first flange portion 342 is connected with the upper tail door outer plate 12, realizing the support of the door lock mounting plate 32 for the license plate area of the upper tail door outer plate 12, and improving the denting stiffness performance of the upper tail door outer plate 12 in this area.

[0049] As shown in Figure 5 The second reinforcing flange 13 is arranged on the upper tail door inner plate 11 and extends towards the upper tail door outer plate 12, one end of the second reinforcing flange 13 is connected with the upper tail door inner plate 11 and the other end is connected with the upper tail door outer plate 12. Specifically, the second reinforcing flange 13 is connected between the upper tail door inner plate 11 and the upper tail door outer plate 12, the second reinforcing flange 13 is designed in the upper tail door inner plate 11 corresponding to the license plate area, the second reinforcing flange 13 is connected with the upper tail door outer plate 12, realizing the support for the upper tail door outer plate 12, further improving the denting stiffness performance of the upper tail door outer plate 12 in this area, reducing the deformation caused by installing the license plate, and improving the torsion and modal of the rear tail door assembly 100 through the structure design.

[0050] Further, the second reinforcing flange 13 can be two, the two second reinforcing flanges 13 are symmetrically arranged about the YZ plane of the vehicle body, ensuring the denting stiffness performance of the upper tail door outer plate 12 in this area.

[0051] The second reinforcing flange 13 comprises a second extending portion and a second flange portion, one end of the second flange portion is connected with the second extending portion and the other end is connected with the upper tail door outer plate 12. Specifically, the second extending portion extends between the upper tail door inner plate 11 and the upper tail door outer plate 12, the second flange portion is connected with the second extending portion, the second flange portion is bent relative to the second extending portion so that the second flange portion abuts against the upper tail door outer plate 12, the contact area of the second flange portion and the upper tail door outer plate 12 is ensured, and the second flange portion is connected with the upper tail door outer plate 12, the support of the license plate area of the upper tail door outer plate 12 by the door lock mounting plate 32 is realized, and the denting stiffness performance of the upper tail door outer plate 12 in the area is further improved.

[0052] According to the vehicle of the second aspect of the utility model, the buffer piece 31 is connected with the lock body 35 and the upper tail door assembly 10, a plurality of force transmission channels can be formed, for example, the lock body 35 and the lock catch 36 constitute a force transmission channel, the buffer piece 31 forms a force transmission channel between the lock body 35 and the lower tail door assembly 20, and thus the force when the lock body 35 and the lock catch 36 are locked is dispersed through the plurality of force transmission channels, and the problems of vibration, abnormal sound and structural deformation when the rear tail door assembly 100 is locked are avoided.

[0053] In the description of the utility model, it is understood that the orientation or positional relationship indicated by 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" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0054] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the description of the utility model, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0055] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A tailgate assembly, characterized in that, include: Upper tailgate assembly (10), on which a lock body (35) is connected and is rotatably connected to the vehicle body; The lower tailgate assembly (20) is rotatably connected to the vehicle body and located below the upper tailgate assembly (10). The lower tailgate assembly (20) is provided with a latch (36), and the lock body (35) and the latch (36) are selectively locked. A buffer (31) is connected to the lock body (35) and the upper tailgate assembly (10), and the buffer (31) selectively abuts against the lower tailgate assembly (20).

2. The tailgate assembly according to claim 1, characterized in that, The buffer (31) consists of at least two buffers, which are spaced apart along the width of the vehicle.

3. The tailgate assembly according to claim 1, characterized in that, The buffer (31) is provided with a rubber component, which selectively abuts against the lower tailgate assembly (20).

4. The tailgate assembly according to claim 1, characterized in that, Also includes: A door lock mounting plate (32) is connected to the upper tailgate assembly (10). A lock body (35) is provided on the door lock mounting plate (32). The buffer (31) is connected to the door lock mounting plate (32) and the upper tailgate assembly (10).

5. The tailgate assembly according to claim 4, characterized in that, The upper tailgate assembly (10) includes: an upper tailgate inner panel (11) and an upper tailgate outer panel (12) connected to each other, a door lock mounting plate (32) connected to the upper tailgate inner panel (11), and a buffer (31) connected to the door lock mounting plate (32) and the upper tailgate inner panel (11).

6. The tailgate assembly according to claim 5, characterized in that, The door lock mounting plate (32) includes a body (33) and a first reinforcing flange (34), the first reinforcing flange (34) extending toward the upper tailgate outer panel (12), one end of the first reinforcing flange (34) being connected to the body (33) and the other end being connected to the upper tailgate outer panel (12).

7. The tailgate assembly according to claim 6, characterized in that, The first reinforced flange (34) includes: a first extension (341) and a first flange (342), one end of the extension is connected to the body (33), one end of the first flange (342) is connected to the other end of the extension and the other end is connected to the outer panel (12) of the upper tailgate.

8. The tailgate assembly according to claim 5, characterized in that, The upper tailgate inner panel (11) is provided with a second reinforcing flange (13), which extends toward the upper tailgate outer panel (12). One end of the second reinforcing flange (13) is connected to the upper tailgate inner panel (11) and the other end is connected to the upper tailgate outer panel (12).

9. The tailgate assembly according to claim 8, characterized in that, The second reinforced flange (13) includes: a second extension and a second flange, one end of the second flange is connected to the second extension and the other end is connected to the upper tailgate outer panel (12).

10. A vehicle, characterized in that, include: The tailgate assembly (100) according to any one of claims 1-9.