Vehicle door inner plate, vehicle door assembly and vehicle

By installing reinforcing plates and beams on the inner panel of the car door, the problem of insufficient door rigidity was solved, which reduced deformation during impact and improved the structural strength of the door and the safety of the occupants.

CN223735822UActive Publication Date: 2025-12-30CHERY INTELLIGENT VEHICLE TECH (HEFEI) CO LTD
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Patent Information

Application Number
CN202520378440.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-12-30
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

In existing technologies, insufficient door rigidity makes the doors prone to excessive deformation upon impact, leading to problems such as door jamming and failing to effectively provide occupant survival space.

Method used

Design a door inner panel including a first reinforcing plate, a second reinforcing plate, and a reinforcing beam, which are respectively connected to the door hinges, door locks, and other structures to enhance the overall structural strength of the door and meet the point stiffness requirements.

Benefits of technology

The overall structural strength of the car door has been improved, deformation has been reduced, and an effective survival space has been provided during a collision, thereby improving the reliability of the vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vehicle door inner plate, a vehicle door assembly and a vehicle. The vehicle door inner plate comprises an inner plate body; the first reinforcing plate is arranged on the side, facing the outside in the thickness direction, of the inner plate body, and the first reinforcing plate is arranged corresponding to a hinge on a vehicle door; the second reinforcing plate is arranged on the inner plate body, the second reinforcing plate and the first reinforcing plate are located on the same side, and the second reinforcing plate and a vehicle door lock are correspondingly arranged; the first reinforcing beam extends in the first direction, and the end, in the first direction, of the first reinforcing beam is located on the side, away from the inner plate body, of the first reinforcing plate and connected with the first reinforcing plate. The other end, in the first direction, of the first reinforcing beam is located on the side, away from the inner plate body, of the second reinforcing plate and connected with the second reinforcing plate. According to the vehicle door inner plate, the overall structural strength can be improved, and the point rigidity requirement is met.
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Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a door inner panel, a door assembly, and a vehicle. Background Technology

[0002] In related technologies, car doors are a crucial component of the vehicle body. Insufficient door rigidity during an impact can lead to excessive deformation and even door jamming. To provide effective survival space for occupants, car doors must possess sufficient rigidity and strength. Considering the stress distribution on the vehicle body, some areas experience high and concentrated stress, while others experience relatively lower stress. Therefore, improving the overall structural strength of the car door is a significant technical challenge. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide a door inner panel that can improve the overall structural strength and meet the point stiffness requirements.

[0004] This application further proposes a door assembly having the aforementioned door inner panel.

[0005] This application further proposes a vehicle having the aforementioned door assembly.

[0006] According to an embodiment of this application, a door inner panel includes: an inner panel body; a first reinforcing plate, which is disposed on the side of the inner panel body facing outward along the thickness direction, and is correspondingly disposed with a door hinge; a second reinforcing plate, which is disposed on the inner panel body and located on the same side as the first reinforcing plate, and is correspondingly disposed with a door lock; and a first reinforcing beam, which extends along a first direction, with one end of the first reinforcing beam located on the side of the first reinforcing plate away from the inner panel body and connected to the first reinforcing plate, and the other end of the first reinforcing beam located on the side of the second reinforcing plate away from the inner panel body and connected to the second reinforcing plate.

[0007] According to an embodiment of this application, the inner door panel has a first reinforcing plate, a second reinforcing plate, and a first reinforcing beam. The first reinforcing plate can be correspondingly arranged with the upper hinge of the door to improve the installation rigidity at the upper hinge. The second reinforcing plate can be correspondingly arranged with the door lock to improve the installation rigidity at the door lock. The first reinforcing beam can be connected to the first reinforcing plate and the second reinforcing plate respectively, thereby improving the overall structural strength of the inner door panel, meeting the point stiffness requirements, and reducing the amount of deformation when the door is impacted, providing an effective survival space for the occupants.

[0008] In some embodiments of this application, the inner door panel further includes a third reinforcing plate, which is disposed on the side of the inner panel body facing outward along the thickness direction, and the third reinforcing plate is correspondingly disposed with the lower hinge of the door.

[0009] In some embodiments of this application, the first reinforcing plate and the third reinforcing plate are arranged at intervals along a second direction and extend along the second direction, the second direction being orthogonal to the first direction.

[0010] In some embodiments of this application, the inner door panel further includes: a second reinforcing beam, the second reinforcing beam extending obliquely along the first direction, and one end of the second reinforcing beam being located on the side of the third reinforcing plate away from the inner panel body and connected to the third reinforcing plate, and the other end of the second reinforcing beam being connected to the inner panel body.

[0011] In some embodiments of this application, the inner door panel further includes a window frame, which is disposed at the top of the inner panel body and connected to the inner panel body.

[0012] In some embodiments of this application, the inner door panel further includes a third reinforcing beam, which extends along the first direction and is located at the top of the inner panel body and is connected to the inner panel body and the window frame respectively.

[0013] In some embodiments of this application, the window frame is further provided with a window guide rail extending in a second direction, and the free end of the window guide rail is connected to the third reinforcing beam.

[0014] In some embodiments of this application, an extension plate is provided at the bottom of the window frame, and the extension plate is located between the first reinforcing plate and the first reinforcing beam.

[0015] The following is a brief description of a door assembly according to another embodiment of this application.

[0016] The door assembly according to the embodiments of this application includes an outer door panel and an inner door panel as described in the above embodiments. The inner door panel is connected to the outer door panel. Since the door assembly according to the embodiments of this application includes an outer door panel and an inner door panel as described in the above embodiments, the door assembly can improve the overall structural strength of the door assembly by providing the inner door panel as described in the above embodiments, meet the point stiffness requirements, and reduce the amount of deformation when the door is impacted, thus providing an effective survival space for the occupants.

[0017] The vehicle of another embodiment of this application is briefly described below.

[0018] The vehicle according to the embodiments of this application is provided with the door assembly of the above embodiments. Since the vehicle according to the embodiments of this application is provided with the door assembly of the above embodiments, the overall structural strength of the vehicle can be further improved by providing the door assembly, meeting the point stiffness requirements, and the deformation can be reduced when the door is hit, providing an effective survival space for the driver and passengers, and improving the reliability of the vehicle.

[0019] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a structural schematic diagram of the inner door panel according to an embodiment of this application;

[0022] Figure 2 yes Figure 1 A partial structural diagram of the inner panel of the CRRC door;

[0023] Figure 3 yes Figure 1 A partial structural diagram of the inner panel of the CRRC door;

[0024] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle window frame;

[0025] Figure 5 It is a door assembly according to an embodiment of this application.

[0026] Figure label:

[0027] 10. Door inner panel;

[0028] 11. Inner plate body; 12. First reinforcing plate; 13. Second reinforcing plate; 14. First reinforcing beam;

[0029] 15. Third reinforcing plate; 16. Second reinforcing beam; 17. Window frame; 171. Window guide rail; 172. Extension plate;

[0030] 18. Third reinforcing beam; 20. Door assembly; 21. Door outer panel. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] The following is for reference. Figures 1-5 The following describes a door inner panel 10 according to an embodiment of this application. The door inner panel 10 includes an inner panel body 11, a first reinforcing plate 12, a second reinforcing plate 13, and a first reinforcing beam 14. The first reinforcing plate 12 is disposed on the side of the inner panel body 11 facing outward along the thickness direction, and the first reinforcing plate 12 is correspondingly disposed with the door hinge.

[0033] The second reinforcing plate 13 is disposed on the inner panel body 11 and is located on the same side as the first reinforcing plate 12. The second reinforcing plate 13 is disposed corresponding to the door lock.

[0034] The first reinforcing beam 14 extends along the first direction, and one end of the first reinforcing beam 14 along the first direction is located on the side of the first reinforcing plate 12 away from the inner plate body 11 and is connected to the first reinforcing plate 12. The other end of the first reinforcing beam 14 along the first direction is located on the side of the second reinforcing plate 13 away from the inner plate body 11 and is connected to the second reinforcing plate 13.

[0035] Currently, car doors are a crucial component of the vehicle body. In the event of an impact, insufficient door rigidity can lead to excessive deformation and even door jamming. To provide effective survival space for occupants, car doors must possess sufficient rigidity and strength. Considering the stress distribution on the vehicle body, some areas experience high and concentrated stress, while others experience relatively lower stress. Therefore, improving the overall structural strength of car doors is a significant technical challenge.

[0036] In response, this application proposes a door inner panel 10, which includes an inner panel body 11 and a reinforcing plate. The inner panel body 11 may have multiple mounting points. The reinforcing plate may include a first reinforcing plate 12 and a second reinforcing plate 13. The first reinforcing plate 12 may be disposed on the side of the inner panel body 11 facing outward along the thickness direction. It can be understood that the first reinforcing plate 12 may be located on the side of the inner panel body 11 away from the driver's cabin, and the first reinforcing plate 12 may be connected to the inner panel body 11. Optionally, the first reinforcing plate 12 and the inner panel body 11 may be fixed by welding. The first reinforcing plate 12 may be correspondingly disposed with the door hinge, thereby ensuring that the first reinforcing plate 12 can increase the installation rigidity at the door hinge and ensure the stability of the door hinge during use.

[0037] like Figure 2As shown, the second reinforcing plate 13 can be disposed on the inner panel body 11. Optionally, the second reinforcing plate 13 and the inner panel body 11 can be fixed by welding. The second reinforcing plate 13 can be located on the same side as the first reinforcing plate 12. It can be understood that the second reinforcing plate 13 can also be located on the side of the inner panel body 11 facing outward along the thickness direction, that is, the second reinforcing plate 13 is located on the side of the inner panel body 11 away from the driver's cabin. The second reinforcing plate 13 can be correspondingly disposed with the door lock. In some embodiments, the second reinforcing plate 13 can be constructed as a door lock reinforcing plate. The second reinforcing plate 13 can increase the installation rigidity of the door lock and ensure the stability of the door lock during use.

[0038] Furthermore, such as Figure 1 As shown, the inner door panel 10 also includes a first reinforcing beam 14. The first reinforcing beam 14 can extend along a first direction, and one end of the first reinforcing beam 14 along the first direction can be located on the side of the first reinforcing plate 12 away from the inner panel body 11. One end of the first reinforcing beam 14 along the first direction can be directly welded to the first reinforcing plate 12 through the contact surface. The other end of the first reinforcing beam 14 along the first direction can be located on the side of the second reinforcing plate 13 away from the inner panel body 11. The other end of the first reinforcing beam 14 along the first direction can be directly welded to the second reinforcing plate 13 through the contact surface. This arrangement can improve the overall strength of the inner door panel 10 and effectively transmit force during a side collision of the vehicle, reduce the deformation of the inner door panel 10, and ensure the safety of the occupants.

[0039] In short, the inner door panel 10 of this application embodiment has a first reinforcing plate 12, a second reinforcing plate 13, and a first reinforcing beam 14. The first reinforcing plate 12 can be correspondingly arranged with the upper hinge of the door to improve the installation rigidity at the upper hinge of the door. The second reinforcing plate 13 can be correspondingly arranged with the door lock to improve the installation rigidity at the door lock. The first reinforcing beam 14 can be connected to the first reinforcing plate 12 and the second reinforcing plate 13 respectively, thereby improving the overall structural strength of the inner door panel 10, meeting the point stiffness requirements, and reducing the amount of deformation when the door is impacted, providing an effective survival space for the driver and passengers.

[0040] like Figure 3As shown, in some embodiments of this application, the inner door panel 10 may further include a third reinforcing plate 15. The third reinforcing plate 15 may be disposed on the inner panel body 11. Optionally, the third reinforcing plate 15 and the inner panel body 11 may be fixed by welding. The third reinforcing plate 15 may be located on the same side as the first reinforcing plate 12. It can be understood that the third reinforcing plate 15 may also be located on the side of the inner panel body 11 facing outward along the thickness direction, that is, the third reinforcing plate 15 is located on the side of the inner panel body 11 away from the driver's cabin. The third reinforcing plate 15 may be correspondingly disposed with the lower door hinge. The third reinforcing plate 15 may increase the installation rigidity at the lower door hinge and ensure the stability of the lower door hinge during use.

[0041] like Figure 3 As shown, in some embodiments of this application, the first reinforcing plate 12 and the third reinforcing plate 15 can be arranged at intervals along a second direction. The second direction can be orthogonal to the first direction. Optionally, the first direction can be the length direction of the vehicle, i.e., the X direction of the vehicle, and the second direction can be the height direction of the vehicle, i.e., the Z direction of the vehicle. The first reinforcing plate 12 and the third reinforcing plate 15 can be arranged at intervals in the second direction to meet the installation requirements of the upper hinge and the lower hinge of the door. Furthermore, the first reinforcing plate 12 and the third reinforcing plate 15 can also extend along the second direction to increase the contact area between the first reinforcing plate 12 and the third reinforcing plate 15 and the inner panel body 11, thereby further improving the structural strength of the inner panel body 11.

[0042] like Figure 1 As shown, in some embodiments of this application, the inner door panel 10 may further include a second reinforcing beam 16. The second reinforcing beam 16 may extend obliquely along a first direction, and one end of the second reinforcing beam 16 may be located on the side of the third reinforcing beam 18 away from the inner panel body 11. One end of the second reinforcing beam 16 may be directly welded and fixed to the third reinforcing plate 15 through a contact surface, and the other end of the second reinforcing beam 16 may be connected to the inner panel body 11. The second reinforcing beam 16 may improve the overall strength of the inner door panel 10 and effectively transmit force during a side collision of the vehicle, reduce the deformation of the inner door panel 10, and ensure the safety of the occupants.

[0043] like Figure 4 As shown, in some embodiments of this application, the inner door panel 10 may further include a window frame 17. The window frame 17 may be disposed at the top of the inner panel body 11 and may be connected to the inner panel body 11. An extension plate 172 may be disposed at the bottom of the window frame 17. The extension plate 172 may be located between the first reinforcing plate 12 and the first reinforcing beam 14. By providing the extension plate 172, the fixing strength between the window frame 17 and the inner panel body 11 can be improved.

[0044] like Figure 1 and Figure 2As shown, in some embodiments of this application, the inner door panel 10 may further include a third reinforcing beam 18. The third reinforcing beam 18 may extend along a first direction and may be located at the top of the inner panel body 11. The third reinforcing plate 15 may be fixed to the inner panel body 11 by welding. The third reinforcing beam 18 may be connected to the inner panel body 11 and the window frame 17 respectively. The third reinforcing beam 18 may improve the rigidity of the water-cut section of the inner panel body 11 and provide a positioning and mating structure for the installation of the water-cut section. A window guide rail 171 extending along a second direction may also be provided on the window frame 17. The free end of the window guide rail 171 may be connected to the third reinforcing beam 18. The window guide rail 171 may serve as a path track for glass lifting and lowering, ensuring that the glass can move according to the designed trajectory during lifting and lowering, and providing an installation interface for the corner window glass.

[0045] The door assembly 20 of another embodiment of this application is briefly described below.

[0046] like Figure 5 As shown, the door assembly 20 according to the embodiment of this application includes an outer door panel 21 and an inner door panel 10 as described in the above embodiment. The inner door panel 10 is connected to the outer door panel 21. Since the door assembly 20 of the embodiment of this application includes an outer door panel 21 and an inner door panel 10 as described in the above embodiment, the door assembly 20 can improve the overall structural strength of the door assembly 20 by providing the inner door panel 10 as described in the above embodiment, meet the point stiffness requirements, and reduce the amount of deformation when the door is impacted, thus providing an effective survival space for the driver and passengers.

[0047] The vehicle of another embodiment of this application is briefly described below.

[0048] The vehicle according to the embodiments of this application is provided with the door assembly 20 of the above embodiments. Since the vehicle according to the embodiments of this application is provided with the door assembly 20 of the above embodiments, the overall structural strength of the vehicle can be further improved by providing the door assembly 20, meeting the point stiffness requirements, and the deformation can be reduced when the door is hit, providing an effective survival space for the driver and passengers, and improving the reliability of the vehicle.

[0049] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "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 based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0050] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0051] In the description of this application, "multiple" means two or more.

[0052] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0053] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0054] 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., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. 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.

[0055] Although embodiments of this application 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 this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A door inner panel characterized by, Comprising: an inner panel body; a first reinforcing plate, the first reinforcing plate being disposed on a side of the inner panel body facing outward in a thickness direction, the first reinforcing plate being disposed corresponding to an upper hinge of a vehicle door; a second reinforcing plate, the second reinforcing plate being disposed on the same side as the first reinforcing plate on the inner panel body, the second reinforcing plate being disposed corresponding to a door lock of the vehicle door; a first reinforcing beam, the first reinforcing beam extending in a first direction, one end of the first reinforcing beam in the first direction being disposed on a side of the first reinforcing plate facing away from the inner panel body and connected to the first reinforcing plate, the other end of the first reinforcing beam in the first direction being disposed on a side of the second reinforcing plate facing away from the inner panel body and connected to the second reinforcing plate.

2. The inner door panel of claim 1, wherein Further comprising: a third reinforcing plate, the third reinforcing plate being disposed on a side of the inner panel body facing outward in a thickness direction, the third reinforcing plate being disposed corresponding to a lower hinge of the vehicle door.

3. The inner door panel of claim 2, wherein The first reinforcing plate and the third reinforcing plate are arranged in a second direction and extend in the second direction, the second direction being orthogonal to the first direction.

4. The door inner panel of claim 2, wherein Further comprising: a second reinforcing beam, the second reinforcing beam extending in the first direction, one end of the second reinforcing beam being disposed on a side of the third reinforcing plate facing away from the inner panel body and connected to the third reinforcing plate, the other end of the second reinforcing beam being connected to the inner panel body.

5. The door inner panel of claim 2, wherein Further comprising: a window frame, the window frame being disposed on a top end of the inner panel body and connected to the inner panel body.

6. The door inner panel of claim 5, wherein Further comprising: a third reinforcing beam, the third reinforcing beam extending in the first direction, the third reinforcing beam being disposed on the top end of the inner panel body and connected to the inner panel body and the window frame respectively.

7. The door inner panel of claim 6, wherein The window frame further comprises a window guide rail extending in the second direction, a free end of the window guide rail being connected to the third reinforcing beam.

8. The door inner panel of claim 5, wherein, A bottom of the window frame is provided with an extension plate, the extension plate being disposed between the first reinforcing plate and the first reinforcing beam.

9. A vehicle door assembly characterized by, Comprising: a vehicle door outer panel; a vehicle door inner panel, the vehicle door inner panel being connected to the vehicle door outer panel and being configured as the vehicle door inner panel of any one of claims 1-8.

10. A vehicle characterized by comprising: A vehicle door assembly comprising the vehicle door inner panel of claim 9.