Back door inner plate for vehicle and vehicle

By designing a structure including inner plate body, mounting beam and reinforced beam in the vehicle back door inner plate, the problem of low structural strength of the back door inner plate in the prior art during collision is solved, and higher impact resistance and overall strength are achieved, meeting the needs of safety performance of the whole vehicle.

CN222845384UActive Publication Date: 2025-05-09CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202421922379.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-08
Publication Date
2025-05-09
Estimated Expiration
2034-08-08

AI Technical Summary

Technical Problem

The existing vehicle back door inner panel skeleton structure has problems such as poor force transmission path and low structural strength during collision, which is difficult to meet the safety needs of drivers and passengers.

Method used

A back door inner plate for a vehicle is designed, and a structure including an inner plate body, a first mounting beam, a second mounting beam, a first reinforced beam and a second reinforced beam are adopted. Through the layout and connection of these beams, external force impact can be effectively dispersed, and the overall impact resistance and structural strength of the back door inner plate are improved.

Benefits of technology

This structure can effectively disperse impact force when the inner panel of the back door is impacted by external force, improve the overall impact resistance and structural strength of the inner panel of the back door, and meet the safety performance needs of the whole vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a back door inner plate for a vehicle and the vehicle, the back door inner plate comprises an inner plate body, the inner plate body is connected with a vehicle body, and a door lock mounting plate suitable for mounting a door lock is arranged at the bottom of the inner plate body; the first mounting beam is arranged on the inner plate body and extends in a first direction; the second mounting beam is arranged at the central point of the first mounting beam and extends towards the door lock mounting plate, and the free end of the second mounting beam is connected with the door lock mounting plate; the first reinforcing beam and the second reinforcing beam are arranged at the two ends, in the first direction, of the first mounting beam respectively, extend towards the door lock mounting plate and are connected with the door lock mounting plate. According to the back door inner plate for the vehicle, the overall structural strength and stability can be improved through the back door inner plate.
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Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a back door inner panel for a vehicle and a vehicle. Background Art

[0002] In the related art, the tailgate of a vehicle has an inner panel and an outer panel. Most of the existing tailgate inner panel frames are multi-part structures composed of a large-opening "V"-shaped beam and a wiper reinforcement or other reinforcements. However, when a vehicle collides, the use of the above-mentioned "V"-shaped beam and reinforcement structure will lead to problems such as poor force transmission path and low structural strength, which makes it difficult to meet the needs of drivers and passengers. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a back door inner panel for a vehicle, which can improve the overall structural strength and stability.

[0004] The present application also provides a vehicle having the above-mentioned tailgate inner panel.

[0005] According to an embodiment of the present application, a tailgate inner panel for a vehicle includes: an inner panel body, a first mounting beam, a second mounting beam, a first reinforcing beam and a second reinforcing beam, the inner panel body being connected to the vehicle body, and a door lock mounting plate suitable for mounting a door lock is provided at the bottom of the inner panel body; the first mounting beam is provided on the inner panel body and extends in a first direction; the second mounting beam is provided at the center point of the first mounting beam and extends toward the door lock mounting plate, and the free end of the second mounting beam is connected to the door lock mounting plate; the first reinforcing beam and the second reinforcing beam are respectively provided at both ends of the first mounting beam in the first direction and extend toward the door lock mounting plate and are connected to the door lock mounting plate.

[0006] According to the tailgate inner panel for a vehicle in an embodiment of the present application, the tailgate inner panel is provided with a first mounting beam, a second mounting beam, a first reinforcing beam and a second reinforcing beam, a door lock mounting plate is provided on the first mounting beam, the second mounting beam extends from the center point of the first mounting beam and is connected to the door lock mounting plate, the first reinforcing beam and the second reinforcing beam are respectively provided at both ends of the first mounting beam and extend toward the door lock mounting plate. The above structure can effectively disperse the impact force when the tailgate inner panel is impacted by external force, thereby improving the overall impact resistance and structural strength of the tailgate inner panel and meeting the safety performance requirements of the entire vehicle.

[0007] In some embodiments of the present application, the second mounting beam extends in a second direction, and the second direction is orthogonal to the first direction.

[0008] In some embodiments of the present application, the tailgate inner panel also includes: a third reinforcing beam and a fourth reinforcing beam, wherein the third reinforcing beam and the fourth reinforcing beam are both arranged at the center point of the first mounting beam and extend toward the first reinforcing beam and the second reinforcing beam respectively and are connected to the first reinforcing beam and the second reinforcing beam.

[0009] In some embodiments of the present application, the free end of the third reinforcing beam is connected to the center point of the first reinforcing beam, and the free end of the fourth reinforcing beam is connected to the center point of the second reinforcing beam.

[0010] In some embodiments of the present application, a first mounting portion recessed in the thickness direction is formed on the first mounting beam, and a second mounting portion recessed in the thickness direction is formed on the second mounting beam, and the first mounting portion and the second mounting portion are suitable for installing a wiper motor assembly.

[0011] In some embodiments of the present application, the door lock mounting plate is arranged at the center point of the bottom of the inner panel body.

[0012] In some embodiments of the present application, the door lock mounting plate is formed with a door lock mounting hole and a door lock hanging hole that penetrate through the thickness direction.

[0013] In some embodiments of the present application, a first flange portion is provided on the inner panel body, a second flange portion is provided on the first reinforcing beam and / or the second reinforcing beam, and the first flange portion and the second flange portion abut against the tailgate outer panel of the vehicle.

[0014] In some embodiments of the present application, the first mounting beam is spaced apart from the top of the inner panel body to form a mounting cavity suitable for mounting a vehicle window.

[0015] The following is a brief description of a vehicle according to an embodiment of the present application.

[0016] The vehicle according to the embodiment of the present application is provided with the tail door inner panel of the above-mentioned embodiment. Since the vehicle according to the embodiment of the present application is provided with the tail door inner panel of the above-mentioned embodiment, the tail door inner panel of the vehicle has a first mounting beam, a second mounting beam, a first reinforcing beam and a second reinforcing beam. The first mounting beam is provided with a door lock mounting plate. The second mounting beam extends from the center point of the first mounting beam and is connected to the door lock mounting plate. The first reinforcing beam and the second reinforcing beam are respectively provided at both ends of the first mounting beam and extend toward the door lock mounting plate. The above-mentioned structure can effectively disperse the impact force when the tail door inner panel is impacted by external force, thereby improving the overall impact resistance and structural strength of the tail door inner panel and meeting the safety performance requirements of the whole vehicle.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic structural diagram of a back door inner panel according to an embodiment of the present application;

[0020] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the first mounting portion and the second mounting portion;

[0021] Figure 3 yes Figure 1 A partial enlarged schematic diagram of the center door lock mounting plate.

[0022] Reference numerals: 1. back door inner panel;

[0023] 11. Inner plate body; 111. Door lock mounting plate; 112. Door lock mounting hole; 113. Door lock hanging hole;

[0024] 12. a first mounting beam; 122. a first mounting portion;

[0025] 13. Second mounting beam; 132. Second mounting portion;

[0026] 14. first reinforcement beam; 141. third reinforcement beam;

[0027] 15. Second reinforcement beam; 151. Fourth reinforcement beam;

[0028] 16. First flange portion; 17. Second flange portion; 18. Installation cavity. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] Reference below Figure 1-Figure 3A tailgate inner panel 1 according to an embodiment of the present application is described, and the tailgate inner panel 1 includes an inner panel body 11, a first mounting beam 12, a second mounting beam 13, a first reinforcing beam 14 and a second reinforcing beam 15. The inner panel body 11 is connected to the vehicle body, and a door lock mounting plate 111 suitable for mounting a door lock is provided at the bottom of the inner panel body 11. The first mounting beam 12 is provided on the inner panel body 11 and extends in a first direction. The second mounting beam 13 is provided at the center point of the first mounting beam 12 and extends toward the door lock mounting plate 111. The free end of the second mounting beam 13 is connected to the door lock mounting plate 111. The first reinforcing beam 14 and the second reinforcing beam 15 are respectively provided at both ends of the first mounting beam 12 in the first direction and extend toward the door lock mounting plate 111 and are connected to the door lock mounting plate 111.

[0031] At present, most of the existing back door inner panel frames are multi-part structures with large opening "V"-shaped beams and wiper reinforcements or other reinforcements. However, when the vehicle collides, the use of the above "V"-shaped beam and reinforcement structure will lead to problems such as poor force transmission path and low structural strength, which is difficult to meet the needs of drivers and passengers.

[0032] like Figure 1 As shown, specifically, the back door inner panel 1 includes an inner panel body 11, a first mounting beam 12, a second mounting beam 13, a first reinforcing beam 14 and a second reinforcing beam 15. The inner panel body 11 can serve as the basic structure of the back door inner panel 1. The inner panel body 11 can be tightly connected to the vehicle body. Optionally, the inner panel body 11 and the vehicle body are connected by hinges. The inner panel body 11 can also provide a stable support platform for the entire back door. The first mounting beam 12 can be set on the inner panel body 11, and the first mounting beam 12 can extend along a first direction. It should be noted that the first direction can be the width direction of the vehicle, that is, the X direction of the vehicle. The first mounting beam 12 not only enhances the lateral strength of the back door inner panel 1, but also provides a solid foundation for the subsequent installation of components.

[0033] Furthermore, the second mounting beam 13 is arranged at the center point of the first mounting beam 12, and the second mounting beam 13 can extend toward the door lock mounting plate 111. This design provides additional reinforcement for the door lock mounting area, thereby improving the stability of the door lock installation and the overall rigidity of the back door. The free end of the second mounting beam 13 can be connected to the door lock mounting plate 111. Optionally, the free end of the second mounting beam 13 and the door lock mounting plate 111 are directly welded and fixed with the contact surface, or the second mounting beam 13 and the door lock mounting plate 111 are constructed as an integral structure. The above structure can improve the overall strength of the back door inner panel 1. The first reinforcing beam 14 and the second reinforcing beam 15 are respectively arranged at the two ends of the first mounting beam 12 in the first direction, and the first reinforcing beam 14 and the second reinforcing beam 15 both extend toward the door lock mounting plate 111, and the free ends of the first reinforcing beam 14 and the second reinforcing beam 15 are connected to the door lock mounting plate 111. The first reinforcing beam 14 and the second reinforcing beam 15 can further optimize the force distribution of the back door inner panel 1 , enhance the deformation resistance of the back door inner panel 1 when subjected to external force impact, and improve the overall safety performance of the back door inner panel 1 .

[0034] In short, the tailgate inner panel 1 of the embodiment of the present application is provided with a first mounting beam 12, a second mounting beam 13, a first reinforcing beam 14 and a second reinforcing beam 15. The first mounting beam 12 is provided with a door lock mounting plate 111. The second mounting beam 13 extends from the center point of the first mounting beam 12 and is connected to the door lock mounting plate 111. The first reinforcing beam 14 and the second reinforcing beam 15 are respectively arranged at both ends of the first mounting beam 12 and extend toward the door lock mounting plate 111. The above structure can effectively disperse the impact force when the tailgate inner panel 1 is impacted by external force, thereby improving the overall impact resistance and structural strength of the tailgate inner panel 1 and meeting the safety performance requirements of the whole vehicle.

[0035] like Figure 1 As shown, in some embodiments of the present application, the second mounting beam 13 extends in a second direction, and the second direction is orthogonal to the first direction. It can be understood that the second mounting beam 13 is arranged orthogonally to the first mounting beam 12, and the first mounting beam 12 and the second mounting beam 13 form a cross-support structure. This structure can more effectively resist external forces from different directions and improve the overall rigidity of the tailgate inner panel 1. When subjected to lateral force or torsional force, the orthogonally arranged first mounting beam 12 and second mounting beam 13 can cooperate with each other to jointly resist deformation, thereby maintaining the shape stability of the tailgate inner panel 1 and enhancing the cross strength of the tailgate inner panel 1. Since the orthogonally arranged first mounting beam 12 and second mounting beam 13 improve the overall rigidity of the tailgate inner panel 1, the vibration and noise of the tailgate inner panel 1 can be reduced accordingly, thereby helping to improve the NVH (Noise-Vibration-Harshness) performance of the entire vehicle.

[0036] like Figure 1As shown, in some embodiments of the present application, the back door inner panel 1 further includes a third reinforcing beam 141 and a fourth reinforcing beam 151, and the third reinforcing beam 141 and the fourth reinforcing beam 151 can be arranged at the center point of the first mounting beam 12, and the third reinforcing beam 141 and the fourth reinforcing beam 151 can extend toward the first reinforcing beam 14 and the second reinforcing beam 15, respectively, and the free ends of the third reinforcing beam 141 and the fourth reinforcing beam 151 can be connected to the first reinforcing beam 14 and the second reinforcing beam 15, respectively. Further, by increasing the number of reinforcing beams and the connection points, the external force can be more evenly dispersed to the entire back door inner panel 1, reducing the phenomenon of local stress concentration, thereby extending the service life of the back door inner panel 1, and the third reinforcing beam 141 and the fourth reinforcing beam 151 form a more complex cross-support structure with the first reinforcing beam 14 and the second reinforcing beam 15. This structure can more effectively resist external forces from all directions and further improve the overall strength of the back door inner panel 1.

[0037] Further, in some embodiments of the present application, the free end of the third reinforcing beam 141 can be connected to the center point of the first reinforcing beam 14, and the free end of the fourth reinforcing beam 151 can be connected to the center point of the second reinforcing beam 15. The connection of the reinforcing beams at the center point can optimize the force transmission path. This design enables the back door inner panel 1 to more effectively disperse the force to the entire structure when subjected to external force, making full use of the material and structural strength of the back door inner panel 1, thereby enhancing the overall structural strength.

[0038] like Figure 2 As shown, in some embodiments of the present application, a first mounting portion 122 recessed in the thickness direction may be formed on the first mounting beam 12, and a second mounting portion 132 recessed in the thickness direction may be formed on the second mounting beam 13. The first mounting portion 122 and the second mounting portion 132 may be used to install a wiper motor assembly. The recessed first mounting portion 122 and the second mounting portion 132 may provide sufficient installation space for the wiper motor assembly without increasing the overall thickness of the back door inner panel 1. The above structure helps to reduce the space occupied inside the vehicle and improve space utilization.

[0039] like Figure 1 As shown, in some embodiments of the present application, the door lock mounting plate 111 can be set at the center point of the bottom of the inner panel body 11. The door lock mounting plate 111 can provide the installer with a clear installation position and guide, which helps to simplify the installation process and reduce the installation difficulty. The door lock mounting plate 111 can also ensure that when the door lock is subjected to external force, the force can be evenly distributed on the entire inner panel body 11, thereby avoiding deformation or damage caused by excessive local force.

[0040] like Figure 3As shown, in some embodiments of the present application, a door lock mounting hole 112 and a door lock hanging hole 113 may be formed on the door lock mounting plate 111 and are arranged through the thickness direction. The design of the door lock mounting hole 112 enables the door lock to be accurately fixed on the mounting plate, ensuring that the installation position of the door lock is accurate. This precise installation method helps to ensure that the door lock is installed quickly and accurately, and avoids failures or damage caused by improper installation positions. The door lock hanging hole 113 is used to hang the door lock's bolt or handle and other components, so that the door lock can be opened and closed smoothly. This design helps to improve the user experience of the door lock, making it easier and more convenient for users to open and close the door.

[0041] like Figure 1 As shown, in some embodiments of the present application, a first flange portion 16 may be provided on the inner panel body 11, a second flange portion 17 may be provided on the first reinforcing beam 14 or the second reinforcing beam 15, or the first reinforcing beam 14 and the second reinforcing beam 15 may both be provided with the second flange portion 17. The first flange portion 16 and the second flange portion 17 abut against the outer panel of the tailgate of the vehicle to provide additional support for the inner panel body 11 and the reinforcing beam. Such a dual support structure can more effectively resist external impact and deformation and enhance the overall strength of the tailgate structure.

[0042] like Figure 1 As shown, in some embodiments of the present application, the first mounting beam 12 and the top of the inner panel body 11 are designed to be spaced apart, thereby forming a mounting cavity 18 specially designed for installing vehicle windows, ensuring that the vehicle windows can be installed therein securely and accurately. This design not only facilitates the installation and maintenance of the vehicle windows, but also improves the overall aesthetics of the tailgate.

[0043] The following is a brief description of a vehicle according to an embodiment of the present application.

[0044] The vehicle according to the embodiment of the present application is provided with the tailgate inner panel 1 of the above-mentioned embodiment. Since the vehicle according to the embodiment of the present application is provided with the tailgate inner panel 1 of the above-mentioned embodiment, the tailgate inner panel 1 of the vehicle has a first mounting beam 12, a second mounting beam 13, a first reinforcing beam 14 and a second reinforcing beam 15. A door lock mounting plate 111 is provided on the first mounting beam 12. The second mounting beam 13 extends from the center point of the first mounting beam 12 and is connected to the door lock mounting plate 111. The first reinforcing beam 14 and the second reinforcing beam 15 are respectively provided at both ends of the first mounting beam 12 and extend toward the door lock mounting plate 111. The above-mentioned structure can effectively disperse the impact force when the tailgate inner panel 1 is impacted by external force, thereby improving the overall impact resistance and structural strength of the tailgate inner panel 1, and meeting the safety performance requirements of the whole vehicle.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0047] In the description of the present application, “plurality” means two or more.

[0048] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0049] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A back door inner panel for a vehicle, characterized in that: include: An inner plate body, the inner plate body is connected to the vehicle body, and a door lock mounting plate suitable for mounting a door lock is provided at the bottom of the inner plate body; a first mounting beam, the first mounting beam being disposed on the inner plate body and extending in a first direction; a second mounting beam, the second mounting beam being disposed at a center point of the first mounting beam and extending toward the door lock mounting plate, the free end of the second mounting beam being connected to the door lock mounting plate; A first reinforcing beam and a second reinforcing beam, wherein the first reinforcing beam and the second reinforcing beam are respectively arranged at two ends of the first mounting beam in a first direction and extend toward the door lock mounting plate and are connected to the door lock mounting plate.

2. The back door inner panel for a vehicle according to claim 1, characterized in that: The second mounting beam extends in a second direction, the second direction being orthogonal to the first direction.

3. The back door inner panel for a vehicle according to claim 1, characterized in that: Also includes: A third reinforcing beam and a fourth reinforcing beam, wherein the third reinforcing beam and the fourth reinforcing beam are both arranged at the center point of the first mounting beam and extend toward the first reinforcing beam and the second reinforcing beam respectively and are connected to the first reinforcing beam and the second reinforcing beam.

4. The back door inner panel for a vehicle according to claim 3, characterized in that: The free end of the third reinforcing beam is connected to the center point of the first reinforcing beam, and the free end of the fourth reinforcing beam is connected to the center point of the second reinforcing beam.

5. The back door inner panel for a vehicle according to claim 3, characterized in that: The first mounting beam is formed with a first mounting portion recessed in the thickness direction, and the second mounting beam is formed with a second mounting portion recessed in the thickness direction. The first mounting portion and the second mounting portion are suitable for mounting a wiper motor assembly.

6. The back door inner panel for a vehicle according to claim 5, characterized in that: The door lock mounting plate is arranged at the center point of the bottom of the inner plate body.

7. The back door inner panel for a vehicle according to claim 6, characterized in that: The door lock mounting plate is formed with a door lock mounting hole and a door lock hanging hole which are arranged through the thickness direction.

8. The back door inner panel for a vehicle according to claim 1, characterized in that: The inner panel body is provided with a first flange portion, the first reinforcement beam and / or the second reinforcement beam is provided with a second flange portion, and the first flange portion and the second flange portion are in contact with the tailgate outer panel of the vehicle.

9. The back door inner panel for a vehicle according to claim 1, characterized in that: The first mounting beam is spaced apart from the top of the inner panel body to form a mounting cavity suitable for mounting a vehicle window.

10. A vehicle, characterized in that: The invention comprises a back door inner panel for a vehicle according to any one of claims 1 to 9.