Back door structure and vehicle

By installing a limiting component between the tailgate and the side panel, the problems of shaking and abnormal noise of the tailgate on bumpy roads are solved, the overall rigidity is improved, and the ride comfort and performance of the vehicle are enhanced.

CN223494262UActive Publication Date: 2025-10-31GREAT WALL MOTOR CO LTD
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Patent Information

Application Number
CN202423292897.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-31
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The existing tailgate structure of automobiles vibrates and produces shaking and abnormal noises when driving on bumpy roads, and the lack of front and rear direction restraints leads to deformation.

Method used

A limiting component is provided between the tailgate assembly and the side panel assembly, including a first limiting member and a second limiting member, which restricts the movement of the tailgate assembly in the front-rear direction through limiting cooperation, thereby improving the overall torsional stiffness.

Benefits of technology

It effectively avoids abnormal noises and deformation of the tailgate assembly on bumpy roads, improves overall performance and rigidity, and enhances ride comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicles, and discloses a back door structure and a vehicle. The back door assembly can rotate relative to the side coaming assembly; the limiting assembly comprises a first limiting piece and a second limiting piece, the first limiting piece is connected to the side coaming assembly, the second limiting piece is arranged on the back door assembly, and after the back door assembly is rotationally closed, the second limiting piece and the first limiting piece are in limiting fit in the front-back direction. The first limiting piece is connected to the side coaming assembly, the second limiting piece is arranged on the back door assembly, and after the back door assembly is rotationally closed, the second limiting piece and the first limiting piece are in limiting fit in the front-back direction, so that the back door assembly can be limited to move in the front-back direction, and the problems of abnormal sound, bumpy road deformation and the like of the back door assembly can be avoided; in addition, the overall torsional rigidity of the back door assembly can be improved, and the overall performance is improved.
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Description

Technical Field

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

[0002] In related technologies, the tailgate structure of a car includes an outer tailgate panel and an inner tailgate panel connected to the outer tailgate panel. The inner tailgate panel is made of PP composite fiberglass material, and the outer tailgate panel is made of PP material.

[0003] However, the existing tailgate structure also has significant defects: the tailgate assembly and the side panel assembly have no limit to their front-to-back movement, and the tailgate assembly vibrates and produces shaking and abnormal noises when driving on bumpy roads. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a tailgate structure that can avoid problems such as abnormal noise and deformation on bumpy roads.

[0005] This utility model further proposes a vehicle.

[0006] The tailgate structure according to this utility model includes: a side panel assembly; a tailgate assembly, the tailgate assembly being rotatable relative to the side panel assembly; and a limiting assembly, the limiting assembly including: a first limiting member and a second limiting member, the first limiting member being connected to the side panel assembly, the second limiting member being disposed on the tailgate assembly, and after the tailgate assembly is rotated and closed, the second limiting member and the first limiting member are engaged in a limiting cooperation in the front-rear direction.

[0007] According to the tailgate structure of this utility model, the first limiting member is connected to the side panel assembly, and the second limiting member is disposed on the tailgate assembly. After the tailgate assembly is rotated and closed, the second limiting member and the first limiting member are engaged in a limiting action in the front-rear direction. This can restrict the tailgate assembly from moving in the front-rear direction, thus avoiding problems such as abnormal noise and deformation on bumpy roads. In addition, it can improve the overall torsional stiffness of the tailgate assembly and enhance the overall performance.

[0008] In some examples of this utility model, the first limiting member includes a fixing part and a first limiting part. The fixing part is disposed on both sides of the first limiting part and is connected to the side panel assembly. The first limiting part is limited and engaged with the second limiting member.

[0009] In some examples of this utility model, the second limiting member includes: a snap-fit ​​portion and a second limiting portion, wherein the snap-fit ​​portion engages with the rear door assembly, and the second limiting portion engages with the first limiting portion.

[0010] In some examples of this utility model, it further includes: a connector, which is connected to the rear door assembly, and the snap-fit ​​portion is snapped and fixed to the connector.

[0011] In some examples of this utility model, one of the first limiting part and the second limiting part is provided with a limiting groove, and the other of the first limiting part and the second limiting part is constructed as a limiting protrusion, which limits and cooperates within the limiting groove.

[0012] In some examples of this utility model, the first limiting part is welded to the fixing part; or the first limiting part is integrally formed on the fixing part.

[0013] In some examples of this utility model, the side panel assembly includes: a side reinforcing plate and a side outer plate, the side reinforcing plate being disposed on the inner side of the side outer plate; the rear door assembly includes: a rear door inner plate and a rear door outer plate, the rear door inner plate being disposed on the inner side of the rear door outer plate; the first limiting member is disposed on the side reinforcing plate; and the second limiting member is disposed on the rear door inner plate.

[0014] In some examples of this utility model, it further includes: a first seal and a second seal, wherein the first seal is sealed between the side reinforcement plate and the inner panel of the rear door, the second seal is sealed between the side reinforcement plate and the inner panel of the rear door, and the limiting component is located between the first seal and the second seal.

[0015] In some examples of this utility model, the first limiting member is a sheet metal structural member, and the second limiting member is a sheet metal structural member.

[0016] The vehicle according to this utility model includes: the rear tailgate structure described above.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural schematic diagram of the rear door structure according to an embodiment of the present utility model;

[0020] Figure 2 This is a partial structural diagram of the rear door structure according to an embodiment of the present utility model.

[0021] Figure label:

[0022] 1. Rear tailgate structure;

[0023] 10. Side panel assembly; 100. Side reinforcement plate; 101. Side outer panel; 20. Rear door assembly; 200. Rear door inner panel; 201. Rear door outer panel; 30. Limiting assembly; 300. First limiting member; 301. Second limiting member; 302. Fixing part; 303. First limiting part; 304. Snap-fit ​​part; 305. Second limiting part; 40. Connecting member; 50. First sealing member; 60. Second sealing member. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0025] The following is for reference. Figure 1 and Figure 2 Description of the rear door structure 1 according to an embodiment of the present utility model.

[0026] like Figure 1 and Figure 2 As shown, the tailgate structure 1 according to an embodiment of the present invention includes: a side panel assembly 10, a tailgate assembly 20, and a limiting assembly 30. The side panel assembly 10 mainly supports the vehicle body structure and protects the safety of occupants. The tailgate assembly 20 mainly provides protection and covering, while also facilitating the storage and retrieval of items. The limiting assembly 30 mainly functions to limit the movement of the tailgate assembly 20 in the front-rear direction. The front-rear direction refers to the direction in front of and behind the vehicle.

[0027] like Figure 1 and Figure 2As shown, the tailgate assembly 20 can rotate relative to the side panel assembly 10. The limiting assembly 30 includes a first limiting member 300 and a second limiting member 301. The first limiting member 300 is connected to the side panel assembly 10, and the second limiting member 301 is disposed on the tailgate assembly 20. After the tailgate assembly 20 is rotated and closed, the second limiting member 301 and the first limiting member 300 are engaged in a limiting cooperation in the front-rear direction. The tailgate assembly 20 and the side panel assembly 10 can rotate relative to each other, allowing for the storage and retrieval of items. The first limiting member 300 and the second limiting member 301 are components of the limiting assembly 30, both serving a limiting function. The first limiting member 300 is connected to the side panel assembly 10, and the second limiting member 301 is disposed on the tailgate assembly 20. With the tailgate assembly 20 rotated and closed, the second limiting member 301 engages with the first limiting member 300 in the front-rear direction, thus restricting the tailgate assembly 20's movement in this direction and preventing issues such as abnormal noises or deformation from bumpy roads. Furthermore, it improves the overall torsional stiffness of the tailgate assembly 20, enhancing its overall performance. The first limiting member 300 and the second limiting member 301 are interference-fitted.

[0028] Therefore, the first limiting member 300 is connected to the side panel assembly 10, and the second limiting member 301 is set on the tailgate assembly 20. After the tailgate assembly 20 is rotated and closed, the second limiting member 301 and the first limiting member 300 are engaged in a limiting action in the front-rear direction. This can restrict the movement of the tailgate assembly 20 in the front-rear direction, avoid problems such as abnormal noise and deformation on bumpy roads, and improve the overall torsional stiffness of the tailgate assembly 20, thus enhancing its overall performance.

[0029] Specifically, such as Figure 2As shown, the first limiting member 300 includes a fixing part 302 and a first limiting part 303. The fixing part 302 is disposed on both sides of the first limiting part 303, and the fixing part 302 is connected to the side panel assembly 10. The first limiting part 303 is limited and engaged with the second limiting member 301. The fixing part 302 and the first limiting part 303 are components of the first limiting member 300. The fixing part 302 mainly serves as a fixed connection, while the first limiting part 303 mainly serves as a limiting function. The fixing part 302 is disposed on both sides of the first limiting part 303. At this time, the fixing part 302 and the first limiting part 303 form an integral whole, which facilitates the installation and setting of the first limiting member 300. The fixing part 302 is connected to the side panel assembly 10, so that the first limiting member 300 can be connected to the side panel assembly 10. The first limiting part 303 and the second limiting member 301 engage in a limiting cooperation. At this time, the first limiting member 300 engages in a limiting cooperation through the first limiting part 303 and the second limiting member 301. This can restrict the movement of the tailgate assembly 20 in the front and rear directions, which can avoid problems such as abnormal noise and deformation of the tailgate assembly 20 on bumpy roads. In addition, it can improve the overall torsional stiffness of the tailgate assembly 20 and improve the overall performance.

[0030] Among them, such as Figure 2 As shown, the second limiting member 301 includes a snap-fit ​​portion 304 and a second limiting portion 305. The snap-fit ​​portion 304 engages with the tailgate assembly 20, and the second limiting portion 305 engages with the first limiting portion 303. It should be noted that the snap-fit ​​portion 304 and the second limiting portion 305 are components of the second limiting member 301. The snap-fit ​​portion 304 mainly functions as a snap-fit ​​connection, while the second limiting portion 305 mainly functions as a limiting component, restricting the movement of other parts. The snap-fit ​​connection between the snap-fit ​​portion 304 and the tailgate assembly 20 is simpler and more convenient, and ensures a secure and reliable connection between the snap-fit ​​portion 304 and the tailgate assembly 20. Through the snap-fit ​​connection between the snap-fit ​​portion 304 and the tailgate assembly 20, the second limiting member 301 can achieve its function. 01 is installed on the tailgate assembly 20. The second limiting part 305 is in a limiting cooperation with the first limiting part 303. The first limiting member 300 and the second limiting member 301 are respectively limited by the first limiting part 303 and the second limiting part 305. At this time, the connection between the first limiting member 300 and the second limiting member 301 is stable and reliable. This can limit the movement of the tailgate assembly 20 in the front and rear directions, and can avoid problems such as abnormal noise and deformation of the tailgate assembly 20 on bumpy roads. In addition, it can improve the overall torsional stiffness of the tailgate assembly 20 and improve the overall performance.

[0031] In addition, such as Figure 2As shown, the tailgate structure 1 also includes: a connector 40, which is connected to the tailgate assembly 20, and a snap-fit ​​part 304 is snap-fitted and fixed to the connector 40. The connector 40 mainly serves a connecting function. The connector 40 is connected to the tailgate assembly 20, and the snap-fit ​​part 304 is snap-fitted and fixed to the connector 40. The connector 40 is connected to the tailgate assembly 20 and simultaneously snap-fitted and fixed to the snap-fit ​​part 304. At this time, the second limiting member 301 can be set on the tailgate assembly 20 through the connector 40 and the snap-fit ​​part 304.

[0032] Of course, such as Figure 2 As shown, one of the first limiting part 303 and the second limiting part 305 is provided with a limiting groove, and the other of the first limiting part 303 and the second limiting part 305 is constructed as a limiting protrusion, which is limited and fitted within the limiting groove. The first limiting part 303 and the second limiting part 305 are respectively constructed as a limiting groove and a limiting protrusion. For example, the first limiting part 303 is constructed as a limiting groove, and the second limiting part 305 is constructed as a limiting protrusion, which is limited and fitted within the limiting groove. In this way, the side panel assembly 10 and the rear door assembly 20 can be connected through the installation and cooperation between the limiting protrusion and the limiting groove, so that the rear door assembly 20 can rotate relative to the side panel assembly 10. At this time, the cooperation between the side panel assembly 10 and the rear door assembly 20 can be made more stable.

[0033] Furthermore, such as Figure 2 As shown, the first limiting part 303 is welded to the fixing part 302, or the first limiting part 303 is integrally formed on the fixing part 302. The first limiting part 303 and the fixing part 302 can be welded together using a special welding machine, which can make the weld smooth, the dimensions accurate, the structure simple and elegant, and can ensure the firmness and reliability of the connection between the first limiting part 303 and the fixing part 302. Alternatively, the first limiting part 303 and the fixing part 302 can be made into an integral structure. In this case, the first limiting member 300 is an integral structure, the overall structure is more stable and firm, and it is convenient for the installation and setting of the first limiting member 300. At the same time, only one processing mold is needed, which facilitates the production and manufacturing of the first limiting member 300.

[0034] In addition, such as Figure 1 As shown, the side panel assembly 10 includes a side reinforcing plate 100 and a side outer panel 101, with the side reinforcing plate 100 disposed on the inner side of the side outer panel 101. The tailgate assembly 20 includes a tailgate inner panel 200 and a tailgate outer panel 201, with the tailgate inner panel 200 disposed on the inner side of the tailgate outer panel 201. A first limiting member 300 is disposed on the side reinforcing plate 100, and a second limiting member 301 is disposed on the tailgate inner panel 200.

[0035] It should be noted that the side panel reinforcement 100 and the outer side panel 101 are components of the side panel assembly 10. The side panel reinforcement 100 mainly provides additional structural strength and support, while the outer side panel 101 provides protection for internal components. The side panel reinforcement 100 is located on the inner side of the outer side panel 101, providing additional structural strength and support, which helps to enhance the overall rigidity of the vehicle body and absorb energy in the event of a collision, protecting passenger safety. Similarly, the tailgate inner panel 200 and the tailgate outer panel 201 are components of the tailgate assembly 20. The tailgate inner panel 200 mainly provides internal support for the tailgate outer panel 201, enhancing the overall structural strength. The tailgate outer panel 201 mainly strengthens the integrity and protection of the tailgate assembly 20. The inner tailgate panel 200 is located inside the outer tailgate panel 201. This arrangement conforms to the actual situation of the vehicle and is more conducive to enhancing the overall structural strength of the vehicle. The first limiting member 300 is located on the side panel reinforcement plate 100, and the second limiting member 301 is located on the inner tailgate panel 200. At this time, the first limiting member 300 can be connected to the side panel assembly 10, and the second limiting member 301 is located on the tailgate assembly 20. After the tailgate assembly 20 is rotated and closed, the second limiting member 301 and the first limiting member 300 are engaged in a front-rear direction, which can limit the movement of the tailgate assembly 20 in the front-rear direction and avoid problems such as abnormal noise and deformation on bumpy roads. In addition, it can improve the overall torsional stiffness of the tailgate assembly 20 and improve the overall performance.

[0036] It should be noted that, as Figure 1 As shown, the rear door structure 1 also includes: a first seal 50 and a second seal 60, the first seal 50 being sealed between the side reinforcement plate 100 and the rear door inner panel 200, the second seal 60 being sealed between the side reinforcement plate 100 and the rear door inner panel 200, and the limiting component 30 being located between the first seal 50 and the second seal 60.

[0037] The first seal 50 and the second seal 60 primarily function as seals. The first seal 50 seals between the side reinforcement plate 100 and the inner rear door panel 200, ensuring a tight seal between them and preventing water, dust, and other contaminants from entering the vehicle. It also reduces noise transmission and improves passenger comfort. The second seal 60 seals between the side reinforcement plate 100 and the inner rear door panel 200, further enhancing the sealing effect and ensuring a tight seal between them. The sealing between the inner door panels 200 can prevent water, dust, etc. from entering the vehicle, while reducing noise transmission and improving ride comfort. Moreover, the limiting component 30 is located between the first seal 50 and the second seal 60, which ensures that the limiting component 30 will not damage the sealing effect of the first seal 50 and the second seal 60. Furthermore, when the limiting component 30 is working, it will not cause unnecessary stress or damage to the first seal 50 and the second seal 60. In addition, the position of the limiting component 30 can prevent rainwater from entering the vehicle after it gets wet and prevent the limiting component 30 from rusting.

[0038] In addition, such as Figure 2 As shown, both the first limiting member 300 and the second limiting member 301 are sheet metal structural components. Sheet metal structural components have advantages such as high strength, durability, and light weight. By setting both the first limiting member 300 and the second limiting member 301 as sheet metal structural components, the first limiting member 300 and the second limiting member 301 are more in line with actual working conditions, ensuring the strength and durability of the first limiting member 300 and the second limiting member 301, while also achieving the goal of weight reduction.

[0039] It should be noted that the limiting component 30 can be used not only for the rear door structure 1, but also for all closures with similar structures.

[0040] The vehicle according to an embodiment of the present utility model includes: the rear tailgate structure 1 described in the above embodiments.

[0041] 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.

[0042] In the description of this utility model, "first feature" and "second feature" may include one or more of the features. In the description of this utility model, "multiple" means two or more. In the description of this utility model, "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. In the description of this utility model, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rear door structure (1), characterized in that, include: Side panel assembly (10); The tailgate assembly (20) is rotatable relative to the side panel assembly (10); The limiting component (30) includes a first limiting member (300) and a second limiting member (301). The first limiting member (300) is connected to the side panel assembly (10), and the second limiting member (301) is disposed on the rear door assembly (20). After the rear door assembly (20) is rotated and closed, the second limiting member (301) and the first limiting member (300) engage in a limiting cooperation in the front-rear direction.

2. The rear door structure (1) according to claim 1, characterized in that, The first limiting member (300) includes a fixing part (302) and a first limiting part (303). The fixing part (302) is disposed on both sides of the first limiting part (303), and the fixing part (302) is connected to the side panel assembly (10). The first limiting part (303) is limited and cooperated with the second limiting member (301).

3. The rear door structure (1) according to claim 2, characterized in that, The second limiting member (301) includes a snap-fit ​​part (304) and a second limiting part (305), wherein the snap-fit ​​part (304) engages with the rear door assembly (20), and the second limiting part (305) engages with the first limiting part (303).

4. The rear door structure (1) according to claim 3, characterized in that, Also includes: A connector (40) is connected to the rear door assembly (20), and a snap-fit ​​part (304) is snap-fitted and fixed to the connector (40).

5. The rear door structure (1) according to claim 3, characterized in that, One of the first limiting part (303) and the second limiting part (305) is provided with a limiting groove, and the other of the first limiting part (303) and the second limiting part (305) is configured as a limiting protrusion, which limits and cooperates with the limiting groove.

6. The rear door structure (1) according to claim 2, characterized in that, The first limiting part (303) is welded to the fixing part (302); or The first limiting part (303) is integrally formed on the fixing part (302).

7. The rear door structure (1) according to claim 1, characterized in that, The side panel assembly (10) includes a side reinforcement plate (100) and a side outer panel (101), wherein the side reinforcement plate (100) is disposed on the inner side of the side outer panel (101). The rear door assembly (20) includes a rear door inner panel (200) and a rear door outer panel (201), wherein the rear door inner panel (200) is disposed on the inner side of the rear door outer panel (201). The first limiting member (300) is disposed on the side reinforcement plate (100), and the second limiting member (301) is disposed on the rear door inner panel (200).

8. The rear door structure (1) according to claim 7, characterized in that, Also includes: A first seal (50) and a second seal (60) are provided, wherein the first seal (50) is sealed between the side reinforcement plate (100) and the rear door inner panel (200), and the second seal (60) is sealed between the side reinforcement plate (100) and the rear door inner panel (200), and the limiting component (30) is located between the first seal (50) and the second seal (60).

9. The rear door structure (1) according to claim 1, characterized in that, The first limiting member (300) is a sheet metal structural member, and the second limiting member (301) is a sheet metal structural member.

10. A vehicle, characterized in that, include: The rear door structure (1) according to any one of claims 1-9.