A car door assembly and a vehicle

Abstract

The present invention discloses a door assembly and an automobile. The door assembly includes a front door and a sliding door. An end of the front door adjacent to the sliding door is a first adjacent end, and an end of the sliding door adjacent to the front door is a second adjacent end. At least one of the first adjacent end and the second adjacent end is internally provided with a first reinforcing beam extending from the top to the bottom of the door assembly. The first reinforcing beam is tubular. In a closed-door state, the first adjacent end and the second adjacent end are in longitudinal contact. With the above solution, the B-pillar is eliminated between the front door and the sliding door, and the view in the open-door state is more open, which is convenient for passengers to get on and off the vehicle. The strength of the first adjacent end and / or the second adjacent end provided with the first reinforcing beam can be enhanced, which can be equivalent to the B-pillar, thereby improving the side collision strength of the vehicle to ensure the side anti-collision performance.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and in particular to a door assembly and an automobile. Background Art

[0002] Conventional car body designs often feature B-pillars to improve side impact resistance. However, as society evolves, people demand greater clarity when opening doors and greater ease of entry and exit. Consequently, designs that eliminate B-pillars (also known as hidden B-pillars) are gaining popularity.

[0003] However, when the B-pillar is removed, how to improve the side collision resistance of the vehicle body becomes a key issue that troubles those skilled in the art. Summary of the Invention

[0004] The object of the present invention is to provide a vehicle door assembly and a vehicle, wherein the vehicle door assembly eliminates the B-pillar and can ensure side collision protection performance.

[0005] In order to solve the above technical problems, the present invention provides a vehicle door assembly, including a front door and a sliding door, the end of the front door adjacent to the sliding door is a first adjacent end, and the end of the sliding door adjacent to the front door is a second adjacent end, and at least one of the first adjacent end and the second adjacent end is provided with a first reinforcing beam extending from the top to the bottom of the vehicle door assembly. The first reinforcing beam is tubular, and when the door is closed, the first adjacent end and the second adjacent end are in contact in the longitudinal direction.

[0006] With this solution, when the doors are closed, the first and second abutting ends can contact each other in the longitudinal direction, eliminating the B-pillar between the front door and the sliding door. This provides a wider field of view when the doors are open, making it easier to display the vehicle's interior, allowing those inside the vehicle to observe the exterior environment, and making it easier for passengers to get on and off the vehicle.

[0007] Moreover, the strength of the first adjacent end portion and / or the second adjacent end portion provided with the first reinforcing beam can be enhanced. Thus, in the door closed state, the first adjacent end portion and / or the second adjacent end portion provided with the first reinforcing beam can be equivalent to the B-pillar of an ordinary vehicle, thereby improving the side collision strength of the vehicle, and the inner cavity of the tubular first reinforcing beam can also be used to absorb energy to ensure the side collision protection performance.

[0008] Optionally, the first reinforcing beam includes a reinforcing inner plate and a reinforcing outer plate. The longitudinal two ends of the reinforcing inner plate are respectively and correspondingly lapped with the longitudinal two ends of the reinforcing outer plate in the transverse direction to form a double-layer plate lapping portion. The front door and the sliding door each include a door inner plate and a door outer plate. The first reinforcing beam is fixedly connected to at least one of the door inner plate and the door outer plate through the double-layer plate lapping portion.

[0009] Optionally, a glass guide rail is installed in the area for forming the window frame in the first adjacent end portion and the second adjacent end portion. The glass guide rail includes a guide rail bottom wall and two guide rail side walls opposite to each other in the transverse direction. One of the two guide rail side walls is connected to the door outer plate or the door inner plate, and the other of the two guide rail side walls is connected to the double-layer plate lapping portion.

[0010] Optionally, a plurality of first notches are provided at intervals from the top to the bottom of the door inner plate in the area for forming the window frame. The area of the double-layer plate lapping portion opposite to the first notches is welded to the guide rail side wall, and the area of the double-layer plate lapping portion not opposite to the first notches is welded to the door inner plate.

[0011] Optionally, a first hemming is provided in the area where the door outer plate is connected to the glass guide rail. The first hemming can cover the end portion of the guide rail side wall away from the guide rail bottom wall.

[0012] Optionally, in the component formed by the double-layer plate lapping portion being simultaneously connected to both the door inner plate and the door outer plate, a plurality of second notches are provided at intervals from the top to the bottom of either the door inner plate or the door outer plate. The one of the door inner plate and the door outer plate provided with the second notches is welded to the double-layer plate lapping portion in the area where the second notches are not provided, and the one of the door inner plate and the door outer plate not provided with the second notches is welded to the double-layer plate lapping portion in the area opposite to the second notches.

[0013] Optionally, the door outer plate of the sliding door includes an outer plate body and an outer plate extension plate. The outer plate extension plate is disposed opposite to the first adjacent end portion.

[0014] Optionally, the outer plate extension plate is not provided with a latch.

[0015] Optionally, a second reinforcing beam is further included. One end of the second reinforcing beam is connected to the first reinforcing beam, and the other end of the second reinforcing beam is connected to the door inner plate or the door outer plate.

[0016] Optionally, an upper locking member is connected to the upper end of the first reinforcing beam installed at the first adjacent end portion; and / or, a lower locking member is connected to the lower end of the first reinforcing beam installed at the first adjacent end portion.

[0017] Optionally, the longitudinal dimension of the portion of the first reinforcing beam below the lower edge of the window frame gradually increases in a direction away from the window frame.

[0018] The present invention also provides an automobile, including the above-mentioned door assembly.

[0019] Since the above-mentioned door assembly already has the above technical effects, then the automobile with this door assembly should also have similar technical effects, so it will not be elaborated here. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a specific embodiment of the door assembly provided by the present invention;

[0021] Figure 2 is Figure 1 a sectional view in the A-A direction;

[0022] Figure 3 is Figure 1 a sectional view in the B-B direction;

[0023] Figure 4 is Figure 1 a connection structure diagram of the front door inner panel, the front door outer panel, the first reinforcing beam and the window frame slide rail;

[0024] Figure 5 is Figure 1 a connection structure diagram of the sliding door inner panel, the sliding door outer panel and the first reinforcing beam;

[0025] Figure 6 is a connection structure diagram of the front door inner panel, the sliding door inner panel, the first reinforcing beam and the second reinforcing beam;

[0026] Figure 7 is an installation structure diagram of the locking member.

[0027] Figures 1-7 The reference numerals in are described as follows:

[0028] 1 Front door, 1a First adjacent end, 11 Front door inner panel, 111 First notch, 12 Front door outer panel,

[0029] 121 First hemming, 1,22 Second hemming;

[0030] 2 Sliding door, 2a Second adjacent end, 21 Sliding door inner panel, 211 Second notch, 22 Sliding door outer panel, 221 Outer panel body, 222 Outer panel extension plate;

[0031] 3 First reinforcing beam, 31 Reinforcing inner panel, 311 First mounting hole, 32 Reinforcing outer panel, 33 Double-layer plate overlapping portion;

[0032] 4 glass guide rails, 41 guide rail bottom wall, 42 guide rail side wall;

[0033] 5 second reinforcing beam;

[0034] 6 upper locking member, 61 second mounting hole;

[0035] 7 lower locking member. Detailed implementation manner

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] As used herein, "a number of" refers to an indefinite number of multiple, usually more than two; and when "a number of" is used to represent the quantity of several components, it does not represent the mutual relationship in quantity of these components.

[0038] As used herein, words such as "first", "second", etc. are only for the convenience of describing two or more structures or components with the same or similar structures and / or functions, and do not represent a special limitation on the order and / or importance.

[0039] In this article, the longitudinal direction is the length direction of the vehicle. In the parking surface or running surface of the vehicle, the direction perpendicular to this longitudinal direction is the transverse direction, and this transverse direction can also be understood as the width direction of the vehicle.

[0040] Please refer to Figures 1-7 , Figure 1 which is a schematic structural diagram of a specific implementation manner of the door assembly provided by the present invention, Figure 2 is Figure 1 a sectional view in the A-A direction, Figure 3 is Figure 1 a sectional view in the B-B direction, Figure 4 is Figure 1 a connection structure diagram of the inner front door panel, the outer front door panel, the first reinforcing beam and the window frame slide rail in Figure 5 is Figure 1 a connection structure diagram of the inner sliding door panel, the outer sliding door panel and the first reinforcing beam in Figure 6 is a connection structure diagram of the inner front door panel, the inner sliding door panel, the first reinforcing beam and the second reinforcing beam, Figure 7 is an installation structure diagram of the upper locking member.

[0041] As shown in Figures 1-5As shown in the figure, the present invention provides a door assembly, including a front door 1 and a sliding door 2. In the closed state of the door, the front door 1 and the sliding door 2 can be in contact with each other longitudinally, that is to say, there is no B-pillar between them. In this way, in the open state of the door, the field of vision is more open, which is more convenient for the display of the vehicle interior structure. At the same time, it is also convenient for the people inside the vehicle to observe the external environment, and it is convenient for passengers to get on and off the vehicle.

[0042] For the convenience of description, the end part of the front door 1 adjacent to the sliding door 2 in the closed state can be called the first adjacent end part 1a, and the end part of the sliding door 2 adjacent to the front door 1 can be called the second adjacent end part 2a. At least one of the first adjacent end part 1a and the second adjacent end part 2a is provided with a first reinforcing beam 3 extending from the top to the bottom of the door assembly. The first reinforcing beam 3 is tubular. Here, the tubular means that the cross-section of the first reinforcing beam 3 perpendicular to its axial direction presents a closed ring shape and is a structural member extending a certain length in the axial direction; however, it should be noted that throughout the entire extension direction of the first reinforcing beam 3, it is not required that the inside of the first reinforcing beam 3 is completely hollow, and various forms of reinforcing members such as plate-shaped and strip-shaped can also be provided inside it to further improve the strength.

[0043] With the above structure, the strength of the first adjacent end part 1a and / or the second adjacent end part 2a provided with the first reinforcing beam 3 can be enhanced. In this way, in the closed state of the door, the first adjacent end part 1a and / or the second adjacent end part 2a provided with the first reinforcing beam 3 can be equivalent to the B-pillar of a conventional vehicle, which can improve the side collision strength of the vehicle, and the inner cavity of the tubular first reinforcing beam 3 can also be used for energy absorption to ensure the side anti-collision performance.

[0044] In the above solution, the first reinforcing beam 3 can be provided only in one of the first adjacent end part 1a and the second adjacent end part 2a, or the first reinforcing beam 3 can be provided in both the first adjacent end part 1a and the second adjacent end part 2a. Specifically, in the embodiment of the present invention, the solution in which the first reinforcing beam 3 is provided in both the first adjacent end part 1a and the second adjacent end part 2a is preferably adopted. At this time, the side anti-collision performance of the vehicle is the best, and it can basically meet the five-star safety requirements of NCAP (New Car Assessment Program).

[0045] The first reinforcing beam 3 can be of an integral structure, such as an integral round tube, square tube, or tubular beam member with a cross-section of other shapes (polygons or other special-shaped cross-sections). Alternatively, the first reinforcing beam 3 can also be of an assembled structure. That is, in the circumferential direction, the first reinforcing beam 3 can be assembled by two or more sheet bodies. At this time, it is convenient to adjust the cross-sectional shape of the first reinforcing beam 3 at different axial positions and the shape of the first reinforcing beam 3 in the entire extending direction to better adapt to the installation of the first reinforcing beam 3 in the relatively complex and irregular first adjacent end 1a and second adjacent end 2a.

[0046] In a specific solution, the first reinforcing beam 3 can adopt an assembled structure. Specifically, the first reinforcing beam 3 can include a reinforcing inner plate 31 and a reinforcing outer plate 32, and the two can be butt-jointed transversely to enclose a box-shaped structural member. Here, the orientation descriptions of "inner" and "outer" are mainly based on the distance relative to the vehicle interior space in the transverse direction. For any structural member, the end (plate part) relatively close to the vehicle interior space can be called the "inner end (inner plate part)", and the end (plate part) relatively far from the vehicle interior space can be called the "outer end (outer plate part)". The butt-joint part of the reinforcing inner plate 31 and the reinforcing outer plate 32 can be the longitudinal two ends of the two. When butt-jointing, the longitudinal two ends of the reinforcing inner plate 31 can be correspondingly lapped with the longitudinal two ends of the reinforcing outer plate 32 transversely to form a double-layer plate lapping part 33. At this time, the reinforcing inner plate 31 and the reinforcing outer plate 32 can enclose a cavity. This structure can be referred to Figures 2-5 .

[0047] In fact, the butt-joint part of the reinforcing inner plate 31 and the reinforcing outer plate 32 is not limited to the longitudinal two ends of the two, and can also be other positions, as long as the corresponding cavity can be formed. In addition, more than one cavity can also be formed in the first reinforcing beam 3, that is, the cross-section perpendicular to the axial direction can include two or more closed figures. At this time, there can also be multiple butt-joint positions of the reinforcing inner plate 31 and the reinforcing outer plate 32.

[0048] Taking the solution where the longitudinal two ends of the reinforcing inner plate 31 and the reinforcing outer plate 32 are butt-jointed to form the double-layer plate lapping part 33 as an example, both the front door 1 and the sliding door 2 can include an inner door panel and an outer door panel. The first reinforcing beam 3 can be fixedly connected to at least one of the inner door panel and the outer door panel through the double-layer plate lapping part 33. That is to say, for the first reinforcing beam 3, it can be connected to only the inner door panel or the outer door panel through the double-layer plate lapping part 33, and the other parts can be arranged with a gap from the inner door panel and the outer door panel. This gap can also be used for energy absorption to further improve the side collision protection performance.

[0049] Here, embodiments of the present invention do not limit the longitudinal dimensions of the first adjacent end portion 1a and the second adjacent end portion 2a. In specific practice, those skilled in the art can set them according to actual needs as long as the usage requirements can be met. When the longitudinal dimensions of the first adjacent end portion 1a and the second adjacent end portion 2a are relatively large, they may participate in forming the window frames of the front door 1 and the sliding door 2. At this time, the connection between the first reinforcing beam 3 and the window frame member also needs to be considered.

[0050] As Figure 2 , Figure 3 and Figure 5 shown, a glass guide rail 4 is also installed in the areas of the first adjacent end portion 1a and the second adjacent end portion 2a for forming the window frame, which is used to guide the lifting of the window glass. Generally speaking, the cross-section of the glass guide rail 4 can be roughly U-shaped, and it can include a guide rail bottom wall 41 and two guide rail side walls 42 opposite to each other in the transverse direction. One of the two guide rail side walls 42 can be connected to the outer door panel or the inner door panel, and the other of the two guide rail side walls 42 can be overlapped with the double-layer plate overlapping portion 33. It should be noted that in the following embodiments of the present invention, the example of one of the two guide rail side walls 42 being connected to the outer door panel is used for illustration. The scheme of one of the two guide rail side walls 42 being connected to the inner door panel is similar to it, and no repetitive description will be made here.

[0051] For the convenience of distinguishing and describing, the inner door panel of the front door 1 can be called the front door inner panel 11, the outer door panel of the front door 1 can be called the front door outer panel 12, and the inner door panel of the sliding door 2 can be called the sliding door inner panel 21, and the outer door panel of the sliding door 2 can be called the sliding door outer panel 22.

[0052] Taking the connection structure of the glass guide rail 4, the front door inner panel 11, the double-layer plate overlapping portion 33 and the front door outer panel 12 as an example for illustration. In an illustrated embodiment, as Figure 4 shown, one guide rail side wall 42 of the glass guide rail 4 can be connected to the front door outer panel 12, and the other guide rail side wall 42 can be connected to the double-layer plate overlapping portion 33, and this double-layer plate overlapping portion 33 can also be connected to the inner door panel 11. There can be many choices for the connection methods between the plates, such as welding, screw connection, bonding, etc. In the conventional scheme, welding is generally used for connection, and this connection method is simple to operate and has high connection reliability.

[0053] However, in Figure 4 the scheme, the guide rail side wall 42, the double-layer plate overlapping portion 33 and the inner door panel 11 actually form a four-layer plate structure. In this case, how to ensure the welding reliability is also something that those skilled in the art need to consider.

[0054] In response to this, in the area where the front door inner panel 11 is connected to the glass guide rail 4, a plurality of first notches 111 may be provided at intervals from the top to the bottom of the door assembly. The area of the double-layer plate overlapping portion 33 opposite to the first notch 111 is used for welding to the side wall 42 of the guide rail, and the area of the double-layer plate overlapping portion 33 not opposite to the first notch 111 is used for welding to the front door inner panel 11. When welding, the area of the front door inner panel 11 without the first notch 111 and the double-layer plate overlapping portion 33 can be welded first, and then the area of the double-layer plate overlapping portion 33 opposite to the first notch 111 and the side wall 42 of the guide rail can be welded. In this way, both between the double-layer plate overlapping portion 33 and the front door inner panel 11 and between the double-layer plate overlapping portion 33 and the side wall 42 of the guide rail are welded with three-layer plates, and the welding reliability can be greatly improved.

[0055] The outer panel 12 of the front door and the glass guide rail 4 can also be connected by welding. Specifically, still as Figure 4 shown, in the area where the outer panel 12 of the front door is connected to the glass guide rail 4, a first hemming 121 may be provided. The first hemming 121 can cover the end of the side wall 42 of the guide rail away from the bottom wall 41 of the guide rail. At this time, a three-layer plate welding structure can also be formed; and, the first hemming 121 can also cover the gap between the outer panel 12 of the front door and the side wall 42 of the guide rail. Of course, the outer panel 12 of the front door may not be provided with the first hemming 121. At this time, the outer panel 12 of the front door can be directly welded to the side wall 42 of the guide rail, that is, a double-layer plate welding structure can be formed.

[0056] As for between the front door inner panel 11 and the outer panel 12 of the front door, a hemming welding scheme can also be adopted. Still as Figure 4 shown, the outer panel 12 of the front door may further be provided with a second hemming 122. A three-layer plate welding structure can also be formed among the outer panel 12 of the front door, the front door inner panel 11, and the second hemming 122.

[0057] As described above, the double-layer plate overlapping portion 33 can be connected to one of the inner panel and the outer panel of the door, or can be connected to both at the same time. When connected to both at the same time, in fact, a situation of four-layer plates connected will also occur. Taking the connection between the double-layer plate overlapping portion 33 and the inner panel 21 of the sliding door and the outer panel 22 of the sliding door as an example, in the component formed by the double-layer plate overlapping portion 33 being connected to the inner panel 21 of the sliding door and the outer panel 22 of the sliding door at the same time, the inner panel 21 or the outer panel 22 of the sliding door may be provided with a plurality of second notches 211 provided at intervals from the top to the bottom of the door assembly; in this way, one of the inner panel 21 and the outer panel 22 of the sliding door provided with the second notch 211 can be welded to the double-layer plate overlapping portion 33 in the area without the second notch 211, and one of the inner panel 21 and the outer panel 22 of the sliding door without the second notch 211 can be welded to the double-layer plate overlapping portion 33 in the area opposite to the second notch 211. In this way, a three-layer plate welding structure can also be formed.

[0058] Specifically, as Figure 5 shown, the second notch 211 can be provided on the inner panel 21 of the sliding door. When welding, the area of the inner panel 21 of the sliding door without the second notch 211 can be welded to the double-layer plate overlapping portion 33 first, and then the area of the double-layer plate overlapping portion 33 opposite to the second notch 211 and the outer panel 22 of the sliding door can be welded. In this way, both between the double-layer plate overlapping portion 33 and the inner panel 21 of the sliding door and between the double-layer plate overlapping portion 33 and the outer panel 22 of the sliding door, three-layer plate welding is adopted, and the welding reliability can be greatly improved.

[0059] It should be noted that although the embodiment of the present invention provides a solution for realizing three-layer plate welding by setting notches, however, this does not mean that the door assembly provided by the present invention can only adopt the three-layer plate welding solution. It can also adopt other welding forms, such as the four-layer plate direct welding solution, etc., as long as the reliable connection between the plates can be ensured.

[0060] Both the inner panel and the outer panel of the door can be of an integral structure. Of course, they can also be of a split structure, which is mainly related to the structural shape of the inner panel and the outer panel, etc. If the structural shape is too complex and the lateral drawing depth is too deep, it is preferably of a split structure to avoid deformation and cracking during the manufacturing process. Combining Figure 2 、 Figure 3 , among the front inner panel 11, the front outer panel 12, the inner panel 21 of the sliding door and the outer panel 22 of the sliding door, the first three can be of an integral structure, while the outer panel 22 of the sliding door can adopt a split structure, including an outer panel body 221 and an outer panel extension plate 222. Among them, the outer panel extension plate 222 can be arranged opposite to the first adjacent end 1a, so that the drawing cracking caused by the excessive lateral drawing depth of the outer panel 22 of the sliding door can be avoided.

[0061] In the prior art, a latch is usually provided on the outer panel extension plate 222 for locking with the B-pillar. In the embodiment of the present invention, since the B-pillar has been cancelled, the outer panel extension plate 222 can also not be provided with a latch. Correspondingly, the front door 1 does not need to be provided with a locking member matching the latch, and the structural design of the entire door assembly can be greatly simplified.

[0062] Furthermore, a second reinforcing beam 5 can be further included. One end of the second reinforcing beam 5 is used to connect with the first reinforcing beam 3, and the other end of the second reinforcing beam 5 is used to connect with the inner panel or the outer panel of the door to further enhance the side collision resistance performance of the vehicle to a greater extent.

[0063] The structure of the second reinforcing beam 5 is not limited herein. It can be a hollow tubular beam, a solid rod beam, a plate beam, or the like. The installation position of the second reinforcing beam 5 is also not limited herein. In specific implementation, those skilled in the art can select according to actual needs. Generally, side collisions occur at the bottom of the door assembly. Therefore, in Figure 6 In the embodiment, the installation position of the second reinforcing beam 5 can be close to the bottom of the door assembly. In this way, the effect of improving the side anti-collision performance is better.

[0064] Furthermore, an upper locking member 6 can be connected to the upper end of the first reinforcing beam 3 installed at the first adjacent end 1a for locking with the front door lock; and / or, a lower locking member 7 can be connected to the lower end of the first reinforcing beam 3 installed at the first adjacent end 1a for locking with the front door lower lock. In this way, during a side collision, the collision force can be effectively transmitted to the top and bottom of the vehicle body to reduce the impact on the side of the vehicle.

[0065] The specific structures and installation structures of the upper locking member 6 and the lower locking member 7 are not limited herein. In specific implementation, those skilled in the art can select according to actual needs. In the attached drawing embodiment, as Figure 7 shown, the reinforcing inner panel 31, the front door inner panel 11, and the upper locking member 6 can all be provided with a certain number of installation holes, and then with the cooperation of connecting members in the form of screws, etc., the upper locking member 6 can be fixed; Figure 7 Shown are the first installation hole 311 provided on the reinforcing inner panel 31 and the second installation hole 61 provided on the upper locking member 6.

[0066] Furthermore, the longitudinal dimension of the part of the first reinforcing beam 3 below the lower edge of the window frame can gradually increase in the direction away from the window frame. In this way, the strength of the lower part of the first reinforcing beam 3 can be increased. During a side collision, the collision force is mainly concentrated on the lower part of the door assembly. Strengthening the lower part strength of the first reinforcing beam 3 can more specifically improve the side anti-collision performance.

[0067] The present invention also provides an automobile, including the door assembly involved in the above-mentioned various embodiments.

[0068] Since the above-mentioned door assembly already has the above technical effects, then the automobile having this door assembly should also have similar technical effects, so it will not be elaborated herein.

[0069] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A door assembly, comprising a front door (1) and a sliding door (2), characterized in that, The end of the front door (1) adjacent to the sliding door (2) is the first adjacent end (1a), and the end of the sliding door (2) adjacent to the front door (1) is the second adjacent end (2a). At least one of the first adjacent end (1a) and the second adjacent end (2a) is internally provided with a first reinforcing beam (3) extending from the top to the bottom of the door assembly. The first reinforcing beam (3) is tubular. In the closed door state, the first adjacent end (1a) and the second adjacent end (2a) are in longitudinal contact; The first reinforcing beam (3) includes a reinforcing inner plate (31) and a reinforcing outer plate (32). The longitudinal two ends of the reinforcing inner plate (31) are respectively and longitudinally lapped with the longitudinal two ends of the reinforcing outer plate (32) along the transverse direction to form a double-layer plate lapping part (33). The front door (1) and the sliding door (2) both include an inner door panel and an outer door panel. The first reinforcing beam (3) is fixedly connected to at least one of the inner door panel and the outer door panel through the double-layer plate lapping part (33); In the component formed by the double-layer plate lapping part (33) being connected to both the inner door panel and the outer door panel at the same time, the inner door panel or the outer door panel is provided with a plurality of second notches (211) spaced from the top to the bottom of the door assembly. The one of the inner door panel and the outer door panel provided with the second notches (211) is welded to the double-layer plate lapping part (33) in the area where the second notches (211) are not provided, and the one of the inner door panel and the outer door panel not provided with the second notches (211) is welded to the double-layer plate lapping part (33) in the area opposite to the second notches (211).

2. The door assembly according to claim 1, wherein A glass guide rail (4) is installed in the area for forming the window frame in the first adjacent end (1a) and the second adjacent end (2a). The glass guide rail (4) includes a guide rail bottom wall (41) and two guide rail side walls (42) opposite to each other in the transverse direction. One of the two guide rail side walls (42) is connected to the outer door panel or the inner door panel, and the other of the two guide rail side walls (42) is connected to the double-layer plate lapping part (33).

3. The door assembly according to claim 2, wherein The area of the inner door panel for forming the window frame is provided with a plurality of first notches (111) spaced from the top to the bottom of the door assembly. The area of the double-layer plate lapping part (33) opposite to the first notches (111) is welded to the guide rail side wall (42), and the area of the double-layer plate lapping part (33) not opposite to the first notches (111) is welded to the inner door panel.

4. The door assembly according to claim 2, wherein A first hemming (121) is provided in the area where the outer door panel is connected to the glass guide rail (4). The first hemming (121) can cover the end of the guide rail side wall (42) away from the guide rail bottom wall (41).

5. The door assembly according to claim 1, wherein, The outer door panel of the sliding door (2) includes an outer panel body (221) and an outer panel extension plate (222). The outer panel extension plate (222) is disposed opposite to the first adjacent end (1a).

6. The door assembly according to claim 5, wherein The outer panel extension plate (222) is not provided with a latch.

7. The door assembly according to claim 1, wherein, Further included is a second reinforcing beam (5), one end of the second reinforcing beam (5) is connected to the first reinforcing beam (3), and the other end of the second reinforcing beam (5) is connected to the inner door panel or the outer door panel.

8. The door assembly according to any one of claims 1-7, characterized in that, An upper lock member (6) is connected to the upper end of the first reinforcing beam (3) installed at the first adjacent end portion (1a); and / or, A lower lock member (7) is connected to the lower end of the first reinforcing beam (3) installed at the first adjacent end portion (1a).

9. The door assembly according to any one of claims 1-7, characterized in that, The longitudinal dimension of the portion of the first reinforcing beam (3) below the lower edge of the window frame gradually increases in a direction away from the window frame.

10. A vehicle, characterized in that, It includes the door assembly according to any one of claims 1-9.

Images