Vehicle door assembly for vehicle and vehicle

Abstract

The utility model discloses a vehicle door assembly used for a vehicle and the vehicle, the vehicle door assembly comprises a door plate body, a handle mounting hole is formed in the door plate body; the first reinforcing plate is arranged on the door plate body and located on at least part of the periphery of the handle mounting hole; the second reinforcing plate is arranged on the door plate body and located on the periphery of at least the other part of the handle mounting hole, and the second reinforcing plate and the first reinforcing plate are arranged in a spaced mode. According to the vehicle door assembly, the first reinforcing plate and the second reinforcing plate are only arranged on the partial periphery of the handle mounting hole, the handle mounting hole cannot be completely wrapped, the usage amount of the first reinforcing plate and the second reinforcing plate is reduced, and therefore the structural strength and rigidity of the periphery of the handle mounting hole are improved, and meanwhile the service life of the vehicle door assembly is prolonged. And the overall weight of the vehicle door assembly is not increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle, especially a door assembly for vehicle and vehicle. BACKGROUND

[0002] In the related art, in order to meet the rigidity requirement at the handle mounting hole of the vehicle, a reinforcing plate is usually added near the handle mounting hole to solve the problem of insufficient rigidity, but the traditional reinforcing plate arrangement scheme has a large reinforcing plate usage area, which leads to an increase in the weight of the door assembly and is not conducive to the lightweight of the vehicle. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a door assembly for vehicle. The door assembly according to the utility model does not completely wrap the handle mounting hole by arranging the first reinforcing plate and the second reinforcing plate only on part of the outer periphery of the handle mounting hole, thereby reducing the usage amount of the first reinforcing plate and the second reinforcing plate, so that the structural strength and rigidity around the handle mounting hole are improved, and the overall weight of the door assembly is not increased.

[0004] The utility model further provides a vehicle with the above door assembly.

[0005] The door assembly for vehicle according to the utility model comprises a door panel body, a handle mounting hole is formed on the door panel body, a first reinforcing plate is arranged on the door panel body and located at least part of the outer periphery of the handle mounting hole, and a second reinforcing plate is arranged on the door panel body and located at least another part of the outer periphery of the handle mounting hole, and the second reinforcing plate and the first reinforcing plate are arranged at intervals.

[0006] The door assembly according to the utility model improves the structural strength and rigidity of the outer periphery of the handle mounting hole by arranging the first reinforcing plate and the second reinforcing plate at least part of the outer periphery of the handle mounting hole, so that the handle does not deform during frequent use, the first reinforcing plate and the second reinforcing plate are arranged at intervals, the first reinforcing plate and the second reinforcing plate are arranged only on part of the outer periphery of the handle mounting hole and do not completely wrap the handle mounting hole, thereby reducing the usage amount of the first reinforcing plate and the second reinforcing plate, so that the structural strength and rigidity around the handle mounting hole are improved, and the overall weight of the door assembly is not increased, thereby realizing the lightweight of the door assembly.

[0007] According to some embodiments of the utility model, the handle mounting hole is located between the first reinforcing plate and the second reinforcing plate, and the first reinforcing plate and the second reinforcing plate are arranged in parallel with each other.

[0008] According to some embodiments of the present application, the door panel body comprises: an inner door panel connected with a vehicle body door frame, the first reinforcing plate and the second reinforcing plate are arranged on the inner door panel; an outer door panel connected with the inner door panel, the handle mounting hole is formed on the outer door panel, and the outer door panel is connected with at least part of the first reinforcing plate and at least part of the second reinforcing plate, wherein the first reinforcing plate and the second reinforcing plate are located between the inner door panel and the outer door panel.

[0009] According to some embodiments of the present application, at least part of the edge of the first reinforcing plate is attached to the outer door panel, and at least part of the first reinforcing plate is arranged in a spaced manner with the outer door panel to form a first cavity; at least part of the edge of the second reinforcing plate is attached to the outer door panel, and at least part of the second reinforcing plate is arranged in a spaced manner with the outer door panel to form a second cavity.

[0010] According to some embodiments of the present application, the two ends of the first reinforcing plate are respectively formed with a first lap edge and a second lap edge extending in a direction away from each other, and the first lap edge and the second lap edge are respectively fixedly connected with the inner door panel; the two ends of the second reinforcing plate are respectively formed with a third lap edge and a fourth lap edge extending in a direction away from each other, and the second lap edge and the third lap edge are respectively fixedly connected with the inner door panel.

[0011] According to some embodiments of the present application, a reinforcing protrusion protruding towards the inner door panel is formed on the first reinforcing plate or the second reinforcing plate.

[0012] According to some embodiments of the present application, the reinforcing protrusion is configured as a plurality of reinforcing protrusions arranged in a spaced manner in the length direction of the first reinforcing plate or the second reinforcing plate.

[0013] According to some embodiments of the present application, at least one of the first reinforcing plate and / or the second reinforcing plate is formed with a weight-reducing hole penetrating in the thickness direction.

[0014] According to some embodiments of the present application, the weight-reducing hole is arranged on the reinforcing protrusion and is configured as a plurality of weight-reducing holes corresponding to the reinforcing protrusions.

[0015] Briefly describe the vehicle according to the present application.

[0016] The vehicle according to the present application comprises the vehicle door assembly according to any one of the above embodiments, and since the vehicle according to the present application is provided with the vehicle door assembly according to the above embodiments, the strength and rigidity of the vehicle door handle are higher and the weight is lighter, the fuel efficiency of the vehicle is improved, and the endurance mileage of the vehicle is improved.

[0017] Additional aspects and advantages of the present application will be set forth in part in the following description, and in part will become apparent to those skilled in the art upon examination of the following description, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be more readily understood through consideration of the following description, taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is a front view of an outer door panel according to an embodiment of the present application;

[0020] Figure 2 is Figure 2 is a sectional view at A-A in FIG. 4;

[0021] Figure 3 is a matching schematic view of an outer door panel and first and second reinforcing plates according to an embodiment of the present application;

[0022] Figure 4 is Figure 3 is a sectional view at B-B in FIG. 5;

[0023] Figure 5 is a structural schematic view of a first reinforcing plate according to an embodiment of the present application;

[0024] Figure 6 is a structural schematic view of a second reinforcing plate according to an embodiment of the present application.

[0025] REFERENCE NUMERALS:

[0026] 100, vehicle door assembly;

[0027] 11, inner door panel; 12, outer door panel; 101, handle mounting hole;

[0028] 21, first reinforcing plate; 22, second reinforcing plate; 201, first cavity; 202, second cavity;

[0029] 211, first lapping edge; 212, second lapping edge; 221, third lapping edge; 222, fourth lapping edge;

[0030] 102, weight-reducing hole; 31, reinforcing protrusion. DETAILED DESCRIPTION

[0031] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, in which 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 by reference to the drawings are exemplary and are for the purpose of explaining the present application, and should not be understood as limiting the present application.

[0032] In related technologies, in order to meet the rigidity requirements at the handle mounting hole of the vehicle, a reinforcing plate is usually added near the handle mounting hole to solve the problem of insufficient rigidity. However, the traditional reinforcing plate arrangement scheme has a large area and heavy weight, which will increase the weight of the door assembly and is not conducive to the lightweighting of the vehicle.

[0033] The following is for reference. Figures 1-6 A door assembly according to an embodiment of the present invention is described.

[0034] The door assembly 100 according to the present invention includes: a door panel body, a first reinforcing plate 21 and a second reinforcing plate 22. A handle mounting hole 101 is formed on the door panel body. The first reinforcing plate 21 is disposed on the door panel body and located at least a portion of the outer periphery of the handle mounting hole 101. The second reinforcing plate 22 is disposed on the door panel body and located at least another portion of the outer periphery of the handle mounting hole 101. The second reinforcing plate 22 and the first reinforcing plate 21 are spaced apart from each other.

[0035] In some specific embodiments, the door assembly 100 consists of a door panel body, a first reinforcing plate 21, and a second reinforcing plate 22. The door panel body has a handle mounting hole 101 for mounting a door handle. The first reinforcing plate 21 and the second reinforcing plate 22 are respectively disposed on the door panel body, and the first reinforcing plate 21 and the second reinforcing plate 22 are respectively located on at least a portion of the outer periphery of the handle mounting hole 101. The first reinforcing plate 21 and the second reinforcing plate 22 are arranged at intervals. On the one hand, the first reinforcing plate 21 and the second reinforcing plate 22 can improve the structural strength and rigidity of the outer periphery of the handle mounting hole 101, so that the handle will not deform during frequent use. On the other hand, the first reinforcing plate 21 and the second reinforcing plate 22 are only disposed on a portion of the outer periphery of the handle mounting hole 101, and will not completely cover the handle mounting hole 101, reducing the amount of the first reinforcing plate 21 and the second reinforcing plate 22 used. Thus, while improving the structural strength and rigidity around the handle mounting hole 101, the overall weight of the door assembly 100 is not increased, achieving the lightweighting of the door assembly 100.

[0036] According to this utility model, the door assembly 100 improves the structural strength and rigidity of the handle mounting hole 101 by placing the first reinforcing plate 21 and the second reinforcing plate 22 on at least a portion of the outer periphery of the handle mounting hole 101, so that the handle will not deform during frequent use. The first reinforcing plate 21 and the second reinforcing plate 22 are arranged at intervals, and the first reinforcing plate 21 and the second reinforcing plate 22 are only provided on a portion of the outer periphery of the handle mounting hole 101, without completely covering the handle mounting hole 101, thus reducing the amount of the first reinforcing plate 21 and the second reinforcing plate 22 used. Therefore, while improving the structural strength and rigidity around the handle mounting hole 101, the overall weight of the door assembly 100 is not increased, thus achieving the lightweighting of the door assembly 100.

[0037] According to some embodiments of the present invention, the handle mounting hole 101 is located between the first reinforcing plate 21 and the second reinforcing plate 22. The first reinforcing plate 21 and the second reinforcing plate 22 are arranged parallel to each other. By placing the first reinforcing plate 21 and the second reinforcing plate 22 on both sides of the handle mounting hole 101 and arranging them in parallel, the rigidity and strength of the door assembly 100 in the handle area can be significantly improved to prevent deformation of the handle mounting hole 101 due to frequent use or external impact. The parallel arrangement of the first reinforcing plate 21 and the second reinforcing plate 22 can better disperse the stress acting around the handle mounting hole 101, ensuring that the force around the handle mounting hole 101 is more uniform, thereby reducing the risk of local overload of the handle. The handle mounting hole 101 is sandwiched between the parallel first reinforcing plate 21 and the second reinforcing plate 22, which can provide sufficient support without increasing the thickness. On the one hand, it will not increase the overall weight of the door, and on the other hand, it can improve the structural strength and rigidity around the handle mounting hole 101.

[0038] According to some embodiments of the present invention, the door panel body includes: an inner door panel 11 and an outer door panel 12. The inner door panel 11 is connected to the vehicle door frame and is provided with a first reinforcing plate 21 and a second reinforcing plate 22. The outer door panel 12 is connected to the inner door panel 11 and is provided with a handle mounting hole 101. The outer door panel 12 is connected to at least a portion of the first reinforcing plate 21 and at least a portion of the second reinforcing plate 22, wherein the first reinforcing plate 21 and the second reinforcing plate 22 are respectively located between the inner door panel 11 and the outer door panel 12.

[0039] In some specific embodiments, the door body is composed of an inner door panel 11 and an outer door panel 12. The inner door panel 11 is connected to the vehicle body door frame and welded together with a first reinforcing plate 21 and a second reinforcing plate 22. The outer door panel 12 is connected to the inner door panel 11 and is located on the side of the door facing the outside of the vehicle. At least a portion of the outer door panel 12 is connected to the first reinforcing plate 21 and the second reinforcing plate 22, and the first reinforcing plate 21 and the second reinforcing plate 22 are located between the inner door panel 11 and the outer door panel 12. The arrangement of the first reinforcing plate 21 and the second reinforcing plate 22 significantly enhances the overall rigidity and bending resistance of the door. The first reinforcing plate 21 and the second reinforcing plate 22 are combined with the inner door panel 11 and the outer door panel 12 respectively, providing additional support for the inner door panel 11 and the outer door panel 12 and improving the safety of the door in the event of a collision.

[0040] According to some embodiments of the present invention, at least a portion of the edge of the first reinforcing plate 21 is abutted against the outer door panel 12, and at least a portion of the first reinforcing plate 21 and the outer door panel 12 are spaced apart to form a first cavity; at least a portion of the edge of the second reinforcing plate 22 is abutted against the outer door panel 12, and at least a portion of the second reinforcing plate 22 and the outer door panel 12 are spaced apart to form a second cavity. In some specific embodiments, at least a portion of the edge of the first reinforcing plate 21 is provided with an adhesive application position, and the edge of the first reinforcing plate 21 and the outer door panel 12 are glued together, which improves the stability and reliability of the connection between the first reinforcing plate 21 and the outer door panel 12. At least a portion of the first reinforcing plate 21 and the outer door panel 12 are spaced apart from each other, thereby forming a first cavity 201 between the first reinforcing plate 21 and the outer door panel 12. At least a portion of the edge of the second reinforcing plate 22 is also provided with an adhesive application position, and the edge of the second reinforcing plate 22 and the outer door panel 12 are spaced apart. The adhesive coating improves the stability and reliability of the connection between the second reinforcing plate 22 and the outer door panel 12. At least part of the second reinforcing plate 22 and the outer door panel 12 are spaced apart from each other, thereby forming a second cavity 202 between the second reinforcing plate 22 and the outer door panel 12. The design of the first cavity 201 and the second cavity 202 can enhance the door's ability to resist bending deformation. When the door is involved in a collision, the first cavity 201 and the second cavity 202 can absorb energy, help disperse the impact force, and improve the impact resistance of the door assembly 100.

[0041] According to some embodiments of the present invention, the two ends of the first reinforcing plate 21 are respectively formed with a first overlapping edge 211 and a second overlapping edge 212 extending in opposite directions, and the first overlapping edge 211 and the second overlapping edge 212 are respectively fixedly connected to the inner door panel 11; the two ends of the second reinforcing plate 22 are respectively formed with a third overlapping edge 221 and a fourth overlapping edge 222 extending in opposite directions, and the second overlapping edge 212 and the third overlapping edge 221 are respectively fixedly connected to the inner door panel 11.

[0042] In some specific embodiments, the first reinforcing plate 21 has a first overlapping edge 211 and a second overlapping edge 212 extending in opposite directions at both ends along its length. The first overlapping edge 211 and the second overlapping edge 212 are welded to the inner door panel 11. The first overlapping edge 211 and the second overlapping edge 212 increase the contact area between the first reinforcing plate 21 and the inner door panel 11, thereby improving the stability of the connection between the first reinforcing plate 21 and the inner door panel 11. Since the first reinforcing plate 21 has a first overlapping edge 211 and a second overlapping edge 212 extending in opposite directions at both ends, the first reinforcing plate 21 is further reinforced by the first overlapping edge 211 and the second overlapping edge 212. The first overlapping edge 211 and the second overlapping edge 212 extend in opposite directions. When the first reinforcing plate 21 is subjected to external impact, the force can be transmitted in two different directions along the first overlapping edge 211 and the second overlapping edge 212, which improves the structural strength and rigidity of the first reinforcing plate 21. The design of the first overlapping edge 211 and the second overlapping edge 212 makes it easier for the first reinforcing plate 21 to be aligned and fixed to the inner door panel 11, simplifying the assembly process while ensuring installation accuracy.

[0043] The second reinforcing plate 22 has a third overlapping edge 221 and a fourth overlapping edge 222 extending in opposite directions at both ends along its length. The third overlapping edge 221 and the fourth overlapping edge 222 are welded to the inner door panel 11. The third overlapping edge 221 and the fourth overlapping edge 222 increase the contact area between the second reinforcing plate 22 and the inner door panel 11, thereby improving the stability of the connection between the second reinforcing plate 22 and the inner door panel 11. Because the second reinforcing plate 22 has third overlapping edges 221 and 222 at both ends... The third and fourth overlapping edges 221 and 222 extend in opposite directions. When the second reinforcing plate 22 is subjected to external impact, the force can be transmitted in two different directions along the third and fourth overlapping edges 221 and 222, improving the structural strength and rigidity of the second reinforcing plate 22. The design of the third and fourth overlapping edges 221 and 222 makes it easier to align and fix the second reinforcing plate 22 to the inner door panel 11, simplifying the assembly process while ensuring installation accuracy. According to some embodiments of this utility model, a reinforcing protrusion 31 protruding towards the inner door panel 11 is formed on the first reinforcing plate 21 or the second reinforcing plate 22.

[0044] In some specific embodiments, a reinforcing protrusion 31 is provided on the first reinforcing plate 21. The reinforcing protrusion 31 protrudes towards the inner door panel 11. By adding the reinforcing protrusion 31 to the first reinforcing plate 21, the structural strength and rigidity of this area can be effectively improved, so that the first reinforcing plate 21 can withstand greater forces, thereby improving the structural strength and rigidity around the handle mounting hole 101. At the same time, the reinforcing protrusion 31 can better disperse the impact force and form a more effective energy absorption zone, thereby further improving the structural strength around the handle mounting hole 101.

[0045] According to some embodiments of the present invention, the reinforcing protrusions 31 are configured as a plurality of protrusions spaced apart along the length of the first reinforcing plate 21 or the second reinforcing plate 22.

[0046] In some specific embodiments, the first reinforcing plate 21 is provided with a plurality of reinforcing protrusions 31 evenly arranged along the length direction, so that the rigidity of the entire first reinforcing plate 21 is more balanced, so as to avoid the situation that the local part of the first reinforcing plate 21 is too strong while other parts are relatively weak, and to ensure the consistency of the structure in the area near the handle mounting hole 101. The multiple spaced reinforcing protrusions 31 can better resist bending force. The reinforcing protrusions 31 can serve as support points to help disperse the strong energy received by the first reinforcing plate 21 and reduce the degree of deformation of the first reinforcing plate. Compared with designing a single large-area reinforcing structure on the first reinforcing plate 21, multiple small reinforcing protrusions 31 can reduce the overall weight while ensuring sufficient strength, thus achieving vehicle lightweighting.

[0047] According to some embodiments of the present invention, at least one of the first reinforcing plate 21 and / or the second reinforcing plate 22 has a weight-reducing hole 102 extending through the thickness direction. By removing material, the total weight of the door assembly 100 is directly reduced, which helps to improve the vehicle's fuel economy or driving range. The weight-reducing hole 102 can ensure that it does not significantly affect the rigidity and strength of the overall structure of the first reinforcing plate 21 or the second reinforcing plate 22. Appropriately arranged weight-reducing holes 102 can also help adjust the vibration characteristics of the structure of the first reinforcing plate 21 or the second reinforcing plate 22, which helps to improve the vehicle's noise, vibration and acoustic harshness (NVH).

[0048] According to some embodiments of the present invention, multiple weight-reducing holes 102 are provided on the reinforcing protrusions 31 and are configured to correspond one-to-one with the reinforcing protrusions 31. By providing weight-reducing holes 102 on each reinforcing protrusion 31, the weight can be reduced while increasing the local rigidity of the first reinforcing plate 21 or the second reinforcing plate 22. The reinforcing protrusions 31 themselves improve the strength and rigidity of certain areas of the first reinforcing plate 21 or the second reinforcing plate 22, while the weight-reducing holes 102 reduce the amount of material used, thereby achieving the effect of both strengthening and reducing weight.

[0049] Each reinforcing protrusion 31 has a corresponding weight-reducing hole 102, which ensures a more uniform stress distribution on the entire first reinforcing plate 21 or second reinforcing plate 22, preventing local overload of the first reinforcing plate 21 or second reinforcing plate 22, improving the overall durability and reliability of the first reinforcing plate or second reinforcing plate 22. The weight-reducing hole 102 can directly reduce the amount of metal material used, thereby reducing the overall weight of the door assembly 100, improving the vehicle's fuel efficiency, reducing emissions, and increasing the vehicle's driving range.

[0050] The vehicle according to this utility model is briefly described below.

[0051] The vehicle according to this utility model includes the door assembly 100 described in any of the above embodiments. Because the vehicle according to this utility model is equipped with the door assembly 100 of the above embodiments, the door handle of the vehicle has higher strength and rigidity and is lighter in weight, improving fuel efficiency and increasing the vehicle's driving range. In the description of this utility model, 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," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 utility model.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In this utility model, unless otherwise explicitly specified and limited, the first feature being "on" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0055] Moreover, the first feature being "above", "above" or "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature.

[0056] The terms "below," "under," and "beneath" can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "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 utility model.

[0057] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples, without contradiction.

[0058] 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 door assembly for a vehicle, characterized by, The door panel body is provided with a handle mounting hole (101); A first reinforcing plate (21) is arranged on the door panel body and located at least part of the outer periphery of the handle mounting hole (101); A second reinforcing plate (22) is arranged on the door panel body and located at least part of the outer periphery of the handle mounting hole (101), and the second reinforcing plate (22) is arranged spaced apart from the first reinforcing plate (21). The handle mounting hole (101) is located between the first reinforcing plate (21) and the second reinforcing plate (22), and the first reinforcing plate (21) and the second reinforcing plate (22) are arranged parallel to each other.

2. The door assembly for a vehicle of claim 1, wherein, The door panel body comprises:

3. The door assembly for a vehicle of claim 1, wherein, An inner door panel (11) connected with a vehicle body door frame, the inner door panel (11) being provided with the first reinforcing plate (21) and the second reinforcing plate (22); An outer door panel (12) connected with the inner door panel (11), the outer door panel (12) being provided with the handle mounting hole (101), and the outer door panel (12) being connected with at least part of the first reinforcing plate (21) and at least part of the second reinforcing plate (22) respectively, wherein the first reinforcing plate (21) and the second reinforcing plate (22) are located between the inner door panel (11) and the outer door panel (12) respectively. At least part of the edge of the first reinforcing plate (21) is fitted with the outer door panel (12), and at least part of the first reinforcing plate (21) is arranged spaced apart from the outer door panel (12) to form a first cavity; 4. The door assembly for a vehicle of claim 3, wherein, At least part of the edge of the second reinforcing plate (22) is fitted with the outer door panel (12), and at least part of the second reinforcing plate (22) is arranged spaced apart from the outer door panel (12) to form a second cavity. Both ends of the first reinforcing plate (21) are respectively provided with a first lap edge (211) and a second lap edge (212) extending in a direction away from each other, and the first lap edge (211) and the second lap edge (212) are respectively fixedly connected with the inner door panel (11); both ends of the second reinforcing plate (22) are respectively provided with a third lap edge (221) and a fourth lap edge (222) extending in a direction away from each other, and the second lap edge (212) and the third lap edge (221) are respectively fixedly connected with the inner door panel (11).

5. The door assembly for a vehicle of claim 3, wherein, The first reinforcing plate (21) or the second reinforcing plate (22) is provided with a reinforcing protrusion (31) protruding towards the inner door panel (11).

6. The door assembly for a vehicle of claim 3, wherein, The reinforcing protrusion (31) is configured as a plurality of reinforcing protrusions (31) arranged spaced apart in the length direction of the first reinforcing plate (21) or the second reinforcing plate (22).

7. The door assembly for a vehicle of claim 6, wherein, At least one of the first reinforcing plate (21) and / or the second reinforcing plate (22) is provided with a weight-reducing hole (102) penetrating in the thickness direction.

8. The door assembly for a vehicle of claim 7, wherein, The weight-reducing hole (102) is arranged on the reinforcing protrusion (31) and configured to be one-to-one corresponding to the reinforcing protrusion (31).

9. The door assembly for a vehicle of claim 8, wherein, ​ 10. A vehicle characterized by comprising: A vehicle door assembly comprising the door assembly of any one of claims 1-9.

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