A vehicle door assembly and vehicle

Abstract

This application discloses a door assembly and a vehicle. The door assembly includes: a door shell having a central region and side regions located on both sides of the central region; a first reinforcing beam having a first thickened section in the length direction; and a second reinforcing beam spaced apart from the first reinforcing beam in the height direction, the second reinforcing beam extending along the length direction and having a second thickened section. The orthographic projection of the first and second thickened sections onto the door shell covers the central region at least in the length direction. Thus, both the first and second reinforcing beams are arranged along the length direction, and the thickened portions of each beam jointly cover the central region in the length direction. This reduces the length dimensions of the first and second thickened sections while effectively protecting the central region. It improves the structural strength of the door assembly and achieves weight reduction.

Description

Technical Field

[0001] This application relates to the field of vehicle door technology, and in particular to a vehicle door assembly and a vehicle. Background Technology

[0002] As the market share of automobiles increases, people are paying more and more attention to vehicle safety. According to relevant statistics, side collisions account for a relatively high percentage of the accident types analyzed.

[0003] To reduce intrusion into the passenger compartment during side collisions and minimize injuries to occupants, the door assembly is reinforced. Existing technology increases the structural strength of the door assembly by increasing the overall cross-sectional thickness of the reinforcing plate. However, this method increases vehicle weight and contradicts the trend towards lightweight vehicles. Utility Model Content

[0004] The main objective of this application is to provide a door assembly and a vehicle, which aims to solve the aforementioned technical problems existing in the prior art.

[0005] To address the aforementioned problems, this application provides a door assembly comprising a door shell, a first reinforcing beam, and a second reinforcing beam. The door shell has a central region along its length and side regions located on either side of the central region. The first reinforcing beam extends along its length and connects to the two side regions of the door shell, and has a first thickened section along its length. The second reinforcing beam extends along its length and connects to the two side regions of the door shell, and is spaced apart from the first reinforcing beam along the height of the door shell. The second reinforcing beam has a second thickened section, and the orthographic projections of the first and second thickened sections onto the door shell cover at least the central region along its length, wherein the length direction intersects the height direction.

[0006] In some embodiments, the second reinforcing beam is located on the lower side of the door shell relative to the first reinforcing beam in the height direction, and the second thickened section is centered in the length direction relative to the first thickened section.

[0007] In some embodiments, the door assembly includes a plate reinforcement group and a first reinforcement plate spaced apart in the length direction. The plate reinforcement group is connected to a side region on one side. One end of a second reinforcement beam is connected to the side of the plate reinforcement group away from the door housing. The two sides of the first reinforcement plate opposite to each other are connected to the side region of the other side of the door housing and the second reinforcement beam, respectively. The orthographic projection of the first reinforcement plate on the second reinforcement beam covers the second thickened section.

[0008] In some embodiments, an energy-absorbing cavity is formed between the first reinforcing plate and the second reinforcing beam. The first reinforcing beam includes two first reinforcing ribs spaced apart in the height direction. The two first reinforcing ribs protrude in a direction away from the first reinforcing plate. The first reinforcing plate has two second reinforcing ribs protruding in a direction away from the second reinforcing beam. Each second reinforcing rib is disposed opposite to one of the first reinforcing ribs.

[0009] In some embodiments, the door assembly includes a second reinforcing plate connected to the side of the first reinforcing plate opposite to the second reinforcing beam, and the second reinforcing plate is correspondingly disposed with the second thickened section.

[0010] In some embodiments, a second reinforcing plate is connected to the side of the first reinforcing plate away from the second reinforcing beam, a reinforcing groove is formed between the two second reinforcing ribs, and the second reinforcing plate includes a third reinforcing rib extending in the length direction, the third reinforcing rib protruding in the direction away from the first reinforcing plate, and the third reinforcing rib is correspondingly arranged with the reinforcing groove.

[0011] In some embodiments, the door assembly includes a door lock reinforcement plate spaced apart from the plate reinforcement group in the length direction, the plate reinforcement group includes a hinge reinforcement plate and a limiter reinforcement plate spaced apart in the height direction, one end of a first reinforcement beam is connected to the hinge reinforcement plate and the limiter reinforcement plate, and the other end of the first reinforcement beam is connected to the door shell through the door lock reinforcement plate.

[0012] In some embodiments, the door assembly includes a third reinforcing beam, which includes a main beam, a first connecting plate, a second connecting plate, and a third connecting plate. The main beam is spaced apart in the height direction from the side of the first reinforcing beam away from the second reinforcing beam. The first connecting plate and the second connecting plate are spaced apart in the length direction and connected to the main beam. The third connecting plate is spaced apart from the main beam and connects the ends of the first connecting plate and the second connecting plate away from the main beam and the first thickened section.

[0013] In some embodiments, the door shell includes an inner door panel and an outer door panel disposed opposite to each other. A first reinforcing beam and a second reinforcing beam connect the inner door panel to the side of the outer door panel. The second reinforcing beam includes a convex section, which at least includes a portion of a second thickened section. The convex section protrudes toward the direction of the outer door panel.

[0014] To address the aforementioned problems, this application provides a vehicle that includes the aforementioned door assembly.

[0015] Compared with the prior art, the door assembly provided in this application includes a door shell, a first reinforcing beam, and a second reinforcing beam. The door shell has a central region along its length and side regions on both sides of the central region. The first reinforcing beam extends along its length and connects to the two side regions of the door shell, and has a first thickened section along its length. The second reinforcing beam extends along its length and connects to the two side regions of the door shell, and is spaced apart from the first reinforcing beam along the height of the door shell. The second reinforcing beam has a second thickened section, and the orthographic projections of the first and second thickened sections onto the door shell cover at least the central region along its length, wherein the length direction intersects the height direction. Through this embodiment, both the first and second reinforcing beams are arranged along their length, and the thickened portions of each beam together cover the central region along their length. This reduces the dimensions of the first and second thickened sections along their length and effectively protects the central region. It improves the structural strength of the door assembly and achieves weight reduction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the door assembly provided in this application; Figure 2 yes Figure 1 The diagram shown is a structural schematic of the door assembly without the first, second, and third reinforcing beams. Figure 3 yes Figure 1 The diagram shows the structure of the second reinforcing beam, the first reinforcing plate, and the second reinforcing plate. Figure 4 yes Figure 3 The diagram shows the disassembled structure of the second reinforcing beam, the first reinforcing plate, and the second reinforcing plate. Figure 5 yes Figure 3 The cross-sectional view of the second reinforcing beam, the first reinforcing plate, and the second reinforcing plate shown along the AA direction; Figure 6 yes Figure 1 The diagram shows the structure of the third reinforcing beam. Figure 7 yes Figure 3 The diagram shows the structure of the second reinforcing beam.

[0018] Reference numerals: Door assembly 10; Door shell 100; Central area 110; Side area 120; Door inner panel 130; First reinforcing beam 200; First thickened section 210; Second reinforcing beam 300; Second thickened section 310; Energy absorption cavity 320; First reinforcing rib 330; Outwardly protruding section 340; Plate reinforcement group 400; Hinge reinforcing plate 410; Limiter reinforcing plate 420; First reinforcing plate 430; Second reinforcing rib 431; Second reinforcing plate 440; Third reinforcing rib 441; Door lock reinforcing plate 450; Third reinforcing beam 500; Main beam 510; First connecting plate 520; Second connecting plate 530; Third connecting plate 540; Length direction X; Height direction Z. Detailed Implementation

[0019] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0021] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0025] In the description of the embodiments of this application, the technical 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" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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 or an electrical 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] As the market share of automobiles increases, people are paying more and more attention to vehicle safety performance. According to relevant statistics, side collisions account for a relatively high proportion of accident types. In order to reduce the intrusion into the passenger compartment and reduce injuries to occupants due to side collisions, the door assembly is reinforced. Existing technology increases the structural strength of the door assembly by increasing the overall cross-sectional thickness of the reinforcing plate. However, this method increases vehicle weight and does not conform to the development of lightweight vehicles.

[0028] To address the related technical problems, this application provides a vehicle that includes the following door assembly.

[0029] To address the related technical problems, this application also provides a door assembly, for details please refer to [link / reference needed]. Figure 1 , Figure 1 This is a schematic diagram of an embodiment of the door assembly provided in this application.

[0030] The door housing 100 may include an inner door panel 130 and an outer door panel (not shown), with the inner door panel 130 located on the side of the door assembly 10 closer to the passenger compartment and the outer door panel on the side closer to the external environment. A space may exist between the inner door panel 130 and the outer door panel for mounting various reinforcing plates. The door housing 100 may include an upper side window area and a lower sheet metal area in the height direction Z. A mounting groove may be provided in the sheet metal area corresponding to the inner door panel 130, with steps formed around the periphery of the mounting groove. The mounting groove can be used to mount various components and can also improve the structural strength of the inner door panel 130. The door housing 100, or the entire door assembly 10, has a central region 110 and side regions 120 located on either side of the central region 110 in the length direction X; that is, a central region 110 is located between the two side regions 120. The two ends of the door assembly 10 in the length direction X can be connected to two adjacent A-pillars, B-pillars and C-pillars respectively. Therefore, the central region 110 of the door assembly 10 needs to have higher structural strength than the side regions 120 on both sides to resist side impacts.

[0031] The first reinforcing beam 200 is disposed in the sheet metal area and can span the mounting groove in the length direction X, so that both ends of the first reinforcing beam 200 are connected to the steps on both sides, thereby improving the structural strength of the door assembly 10. The first reinforcing beam 200 also has a first thickened section 210, which is a thickened area of ​​the first reinforcing beam 200 in the length direction X. The first thickened section 210 can be located between the two connection points of the first reinforcing beam 200 and the steps on both sides, so that when the first reinforcing beam 200 is subjected to a side impact, the load on the steps on both sides of the door is reduced, and the first thickened section 210 of the first reinforcing beam 200 can withstand more impact from external forces, thereby reducing the intrusion into the passenger compartment.

[0032] The second reinforcing beam 300 extends along the length direction X and also crosses the mounting groove in the length direction X. Both ends of the second reinforcing beam 300 are connected to the steps on the periphery of the mounting groove. The second reinforcing beam 300 is spaced apart from the first reinforcing beam 200 in the height direction Z. The second reinforcing beam 300 has a second thickened section 310, which is a thickened area of ​​the second reinforcing beam 300 in the length direction X. The second thickened section 310 can also be located between the two connection points between the second reinforcing beam 300 and the steps on both sides, so that the second thickened section 310 can withstand more impact from external forces and reduce the intrusion into the cockpit. The orthographic projections of the first thickened section 210 and the second thickened section 310 onto the inner door panel 130 together cover the central region 110 in the length direction X. Alternatively, the orthographic projections of the first thickened section 210 and the second thickened section 310 onto the inner door panel 130 may also together cover the central region 110 and at least one side region 120, thereby strengthening the structural strength of the door assembly 10 corresponding to the central region 110 or the central region 110 and one side region 120. For example, the first thickened section 210 is more biased towards the left or right side of the central region 110 in the length direction X compared to the second thickened section 310. In other words, the orthographic projections of the first thickened section 210 onto the second thickened section 310 may not overlap or may only partially overlap. This allows the first thickened section 210 and the second thickened section 310 to jointly strengthen the central region 110 or the central region 110 and at least one side region 120.

[0033] Understandably, Figure 1 The central region 110 and the side region 120 shown are schematic diagrams for ease of understanding only.

[0034] In the above-described embodiment, both the first reinforcing beam 200 and the second reinforcing beam 300 are arranged along the length direction X, and the thickened portions of the first reinforcing beam 200 and the second reinforcing beam 300 together cover the central region 110 in the length direction X. This reduces the dimensions of the first thickened section 210 and the second thickened section 310 in the length direction X, while also effectively protecting the central region 110. This improves the structural strength of the door assembly 10 and achieves the goal of weight reduction.

[0035] In some embodiments, the second reinforcing beam 300 is located on the lower side of the door shell 100 relative to the first reinforcing beam 200 in the height direction Z, and the second thickened section 310 is centrally located in the length direction X relative to the first thickened section 210 in the length direction X.

[0036] The sheet metal area of ​​the door assembly 10 may include a primary impact area and a secondary impact area in the height direction Z, with the primary impact area located below the secondary impact area in the height direction Z. In the event of a side impact, the primary impact area located at the lower part is the main impact point. Therefore, the second reinforcing beam 300 is positioned on the lower side of the door shell 100. Furthermore, the second thickened section 310 is centered in the length direction X relative to the first thickened section 210. That is, the first thickened section 210 is closer to the side region 120, and the second thickened section 310 corresponds to the central region 110. Thus, the relative positions of the thickened portions of the first reinforcing beam 200 and the second reinforcing beam 300 can be specifically optimized according to the point of force application in a side impact.

[0037] Furthermore, the first thickened section 210 can correspond to a side region 120 closer to the B-pillar. Since the structural strength of the regions corresponding to the A-pillar and C-pillar of a vehicle is higher than that of the B-pillar, the side region 120 closer to the B-pillar requires greater structural strength. The second thickened section 310 can correspond to the central region 110. Thus, the first thickened section 210 corresponding to the side region 120 closer to the B-pillar and the second thickened section 310 corresponding to the central region 110 effectively improves the structural strength of both the side region 120 and the central region 110, while also reducing the dimensions of the first thickened section 210 and the second thickened section 310 in the length direction X, thereby achieving weight reduction. In addition, the orthographic projections of the first thickened section 210 onto the second thickened section 310 can overlap, further improving the structural strength of the central region 110.

[0038] See Figures 2 to 4 , Figure 2 yes Figure 1 The diagram shown is a structural schematic of the door assembly without the first, second, and third reinforcing beams. Figure 3 yes Figure 1 The diagram shows the structure of the second reinforcing beam, the first reinforcing plate, and the second reinforcing plate. Figure 4 yes Figure 3 The diagram shows the disassembled structure of the second reinforcing beam, the first reinforcing plate, and the second reinforcing plate.

[0039] In some embodiments, the door assembly 10 includes a plate reinforcement group 400 and a first reinforcement plate 430 spaced apart in the longitudinal direction X. The plate reinforcement group 400 is connected to a side region 120 on one side. One end of a second reinforcement beam 300 is connected to the side of the plate reinforcement group 400 away from the door shell 100. The two opposite sides of the first reinforcement plate 430 are respectively connected to the side region 120 and the second reinforcement beam 300 on the other side of the door shell 100. The orthogonal projection of the first reinforcement plate 430 on the second reinforcement beam 300 covers the second thickened section 310.

[0040] The panel reinforcement assembly 400 and the first reinforcing plate 430 are spaced apart in the length direction X. The panel reinforcement assembly 400 can be connected to the step of one side region 120, specifically the side region 120 away from the B-pillar. The first reinforcing plate 430 can be connected to the step of the other side region 120 of the inner door panel 130 in the length direction X. The two ends of the second reinforcing beam 300 are connected to the panel reinforcement assembly 400 and the first reinforcing plate 430, respectively, thereby increasing the structural strength at the steps of the side regions 120 at both ends, and also increasing the structural strength of the second reinforcing beam 300. In addition, one end of the first reinforcing plate 430 is connected to the step of the side region 120, and the other end of the first reinforcing plate 430 extends in the length direction X toward the panel reinforcement assembly 400, covering the position of the second reinforcing beam 300 in the middle region 110. Therefore, the first reinforcing plate 430 corresponds to both the central region 110 and the side region 120 of the second reinforcing beam 300, which can simultaneously improve the structural strength of the second reinforcing beam 300 at the corresponding positions. The first reinforcing plate 430 and the plate reinforcing group 400 are spaced apart, which can reduce the amount of the first reinforcing plate 430 used and achieve the purpose of lightweighting.

[0041] In some embodiments, one end of the first reinforcing plate 430 away from the plate reinforcement group 400 is connected to the step of the side region 120, and one end of the second reinforcing beam 300 away from the plate reinforcement group 400 extends beyond the end of the first reinforcing plate 430 away from the plate reinforcement group 400, so that the end of the second reinforcing beam 300 away from the plate reinforcement group 400 can simultaneously connect the first reinforcing plate 430 and the step of the side region 120. Thus, a three-layer connection structure connecting to the inner door panel 130 can be formed at the positions of the second reinforcing beam 300 and the first reinforcing plate 430 corresponding to the side region 120, which can improve the connection strength of the second reinforcing beam 300 and the first reinforcing plate 430 in the side region 120.

[0042] In some embodiments, the second reinforcing beam 300 may be arranged obliquely, that is, the end of the second reinforcing beam 300 near the plate reinforcement group 400 is close to the first reinforcing beam 200 in the height direction Z, and the end of the second reinforcing beam 300 away from the plate reinforcement group 400 is farther away from the first reinforcing beam 200 in the height direction Z, thereby making the area spanned by the second reinforcing beam 300 larger, which can improve the structural strength of the door assembly 10 while also achieving weight reduction.

[0043] See Figure 5 , Figure 5 yes Figure 3 The cross-sectional view of the second reinforcing beam, the first reinforcing plate, and the second reinforcing plate shown along the AA direction.

[0044] In some embodiments, an energy-absorbing cavity 320 is formed between the first reinforcing plate 430 and the second reinforcing beam 300. The first reinforcing beam 200 includes two first reinforcing ribs 330 spaced apart in the height direction Z of the first reinforcing beam 200. The two first reinforcing ribs 330 protrude in a direction away from the first reinforcing plate 430. The first reinforcing plate 430 has two second reinforcing ribs 431 protruding in a direction away from the second reinforcing beam 300. Each second reinforcing rib 431 is respectively disposed opposite to one of the first reinforcing ribs 330.

[0045] The first reinforcing plate 430 and the second reinforcing beam 300 both have connecting edges on both sides in the height direction Z, and the connecting edges extend in the length direction X. The connecting edges on both sides of the first reinforcing plate 430 in the height direction Z are respectively connected to one connecting edge of the second reinforcing beam 300. The first reinforcing plate 430 and the second reinforcing beam 300 are relatively spaced apart between the two connecting edges, thereby forming an energy-absorbing cavity 320 between the first reinforcing plate 430 and the second reinforcing beam 300 to further improve the structural strength of the door assembly 10 in the central region 110 and the side region 120 of the main collision zone. The second reinforcing beam 300 also includes two first reinforcing ribs 330 spaced apart in the height direction Z. The first reinforcing ribs 330 can protrude in a direction away from the first reinforcing plate 430. The first reinforcing plate 430 includes two second reinforcing ribs 431 spaced apart in the height direction Z. The second reinforcing ribs 431 can protrude in a direction away from the second reinforcing beam 300. Each first reinforcing rib 330 is opposite to one second reinforcing rib 431. Therefore, the two first reinforcing ribs 330 and the two second reinforcing ribs 431 are arranged opposite to each other, and an energy-absorbing cavity 320 is formed between the two first reinforcing ribs 330 and the two second reinforcing ribs 431, thereby further improving the structural strength of the door assembly 10 at the corresponding position of the first reinforcing plate 430.

[0046] In some embodiments, the door assembly 10 includes a second reinforcing plate 440, which is connected to the side of the first reinforcing plate 430 away from the second reinforcing beam 300, and the second reinforcing plate 440 is correspondingly disposed with the second thickened section 310.

[0047] The second reinforcing plate 440 can be connected to the side of the first reinforcing plate 430 opposite to the second reinforcing beam 300. The dimension of the second reinforcing plate 440 in the length direction X is smaller than that of the first reinforcing plate 430 in the length direction X, and the second reinforcing plate 440 corresponds to the second thickened section 310. Therefore, the second reinforcing plate 440 can further improve the structural strength of the door assembly 10 in the central region 110 of the main collision zone. Furthermore, the connection of the second reinforcing plate 440 to the side of the first reinforcing plate 430 opposite to the second reinforcing beam 300 can also reduce the risk of interference between the second reinforcing plate 440 and the first reinforcing plate 430 during a side collision.

[0048] In some embodiments, a second reinforcing plate 440 is connected to the side of the first reinforcing plate 430 away from the second reinforcing beam 300, a reinforcing groove is formed between the two second reinforcing ribs 431, and the second reinforcing plate 440 includes a third reinforcing rib 441 extending in the length direction X, the third reinforcing rib 441 protruding in the direction away from the first reinforcing plate 430, and the third reinforcing rib 441 is correspondingly arranged with the reinforcing groove.

[0049] The second reinforcing plate 440 is connected to the connecting edges of the first reinforcing plate 430 on both sides in the height direction Z, and the middle part of the second reinforcing plate 440 also has a small gap with the first reinforcing plate 430, thus also having an energy absorption function. Since the two second reinforcing ribs 431 of the first reinforcing plate 430 are spaced apart in the height direction Z, a reinforcing groove is formed between the two second reinforcing ribs 431 in the first reinforcing plate 430. The second reinforcing plate 440 includes a third reinforcing rib 441, which protrudes in the direction away from the first reinforcing plate 430, and the third reinforcing rib 441 is correspondingly arranged with the reinforcing groove between the two second reinforcing ribs 431. Thus, the third reinforcing rib 441 of the second reinforcing plate 440 is arranged to protrude in the direction away from the first reinforcing plate 430 and corresponds to the reinforcing groove. This can improve the structural strength of the second reinforcing plate 440, and the third reinforcing rib 441 also cooperates with the reinforcing groove of the first reinforcing plate 430 to further improve the structural strength of the door assembly 10 in the middle area.

[0050] In some embodiments, the door assembly 10 includes a door lock reinforcing plate 450 spaced apart from the plate reinforcement group 400 in the length direction X, the plate reinforcement group 400 includes a hinge reinforcing plate 410 and a limiter reinforcing plate 420 spaced apart in the height direction Z, one end of the first reinforcing beam 200 is connected to the hinge reinforcing plate 410 and the limiter reinforcing plate 420, and the other end of the first reinforcing beam 200 is connected to the door shell 100 through the door lock reinforcing plate 450.

[0051] Taking the door assembly 10 of this application as an example of a front door, this application does not limit the door assembly 10 to only the front door; the various embodiments of this application can also be applied to the rear door. One end of the door assembly 10 in the length direction X is rotatably connected to the A-pillar, and the other end of the door assembly 10 is connected to the B-pillar via a door lock. On the side of the inner door panel 130 near the outer door panel, two ends in the length direction X are respectively connected to a plate reinforcement assembly 400 and a door lock reinforcement plate 450. The door lock reinforcement plate 450 can be connected to the step of the side region 120 of the inner door panel 130 near the B-pillar. The plate reinforcement assembly 400 can be connected to the step of the side region 120 of the inner door panel 130 near the A-pillar. One end of the first reinforcing beam 200 can be connected to the side of the plate reinforcement assembly 400 away from the inner door panel 130, and the other end of the first reinforcing beam 200 can be connected to the door lock reinforcement plate 450. This improves both the structural strength of local areas on both sides of the door assembly 10 and the overall structural strength of the door assembly 10. Furthermore, the panel reinforcement group 400 includes hinge reinforcement plates 410 and limiter reinforcement plates 420 spaced apart in the height direction Z. The end of the first reinforcement beam 200 away from the door lock reinforcement plate 450 is connected to both the hinge reinforcement plate 410 and the limiter reinforcement plate 420 on the side facing away from the inner door panel 130. Thus, the hinge reinforcement plate 410 and the limiter reinforcement plate 420 are separate and spaced apart. One end of the first reinforcement beam 200 is connected to the side of the hinge reinforcement plate 410 and the limiter reinforcement plate 420 facing away from the inner door panel 130, and the other end of the first reinforcement beam 200 is connected to the side of the door lock reinforcement plate 450 facing away from the inner door panel 130. This improves both the local and overall structural strength of the door assembly 10 and achieves weight reduction. In addition, the hinge reinforcement plate 410 and the limiter reinforcement plate 420 are set separately, and corresponding reinforcing ribs and different thicknesses can be set for the hinge reinforcement plate 410 and the limiter reinforcement plate 420 respectively according to the needs, making the design more flexible and saving more materials.

[0052] In this embodiment, the plate reinforcement assembly 400 and the door lock reinforcement plate 450 can both be partially connected to the steps of their respective side regions 120. They can also extend towards the bottom wall of the mounting groove in the thickness direction of the door assembly 10, so that the plate reinforcement assembly 400 and the door lock reinforcement plate 450 are also connected to the side wall and bottom wall of the mounting groove. This allows the plate reinforcement assembly 400 and the door lock reinforcement plate 450 to be supported between the first reinforcing beam 200 and the bottom wall of the mounting groove, thereby improving the structural strength of the door assembly 10.

[0053] In some embodiments, one end of the second reinforcing beam 300 may also be connected to the limiter reinforcing plate 420, and the end of the second reinforcing beam 300 away from the limiter reinforcing plate 420 may be connected to the step of the side region 120. This can further improve the structural strength of the side region 120 on the side with the limiter reinforcing plate 420.

[0054] See Figure 6 , Figure 6 yes Figure 1 The diagram shows the structure of the third reinforcing beam.

[0055] In some embodiments, the door assembly 10 includes a third reinforcing beam 500, which includes a main beam 510, a first connecting plate 520, a second connecting plate 530, and a third connecting plate 540. The main beam 510 is spaced apart in the height direction Z from the side of the first reinforcing beam 200 away from the second reinforcing beam 300. The first connecting plate 520 and the second connecting plate 530 are spaced apart in the length direction X and connected to the main beam 510. The third connecting plate 540 is spaced apart from the main beam 510 and connects the ends of the first connecting plate 520 and the second connecting plate 530 away from the main beam 510 and the first thickened section 210.

[0056] The door assembly 10 also includes a third reinforcing beam 500, which is connected to the first reinforcing beam 200 in the height direction Z, and is located on the side of the first reinforcing beam 200 away from the second reinforcing beam 300 in the height direction Z. Specifically, the third reinforcing beam 500 can be correspondingly arranged with the window sill portion of the sheet metal area near the side window area, thereby improving the structural strength of the window sill portion. The third reinforcing beam 500 may include a main beam 510, a first connecting plate 520, a second connecting plate 530, and a third connecting plate 540. The main beam 510 is spaced apart from the first reinforcing beam 200 in the height direction Z. The first connecting plate 520 and the second connecting plate 530 are spaced apart in the length direction X. One end of the first connecting plate 520 and the second connecting plate 530 is connected to the main beam 510, and the other end of the first connecting plate 520 and the second connecting plate 530 extends toward the first reinforcing beam 200 in the height direction Z. The two ends of the third connecting plate 540 in the length direction X are connected to the first connecting plate 520 and the second connecting plate 530, respectively, and one side of the third connecting plate 540 is also connected to the first thickened section 210 of the first reinforcing beam 200. Therefore, the third reinforcing beam 500 is connected to the first reinforcing beam 200 through a frame structure formed by the first connecting plate 520, the second connecting plate 530, and the third connecting plate 540, thereby improving the connection strength and structural strength between the first reinforcing beam 200 and the third reinforcing beam 500. Furthermore, the third connecting plate 540 is also connected to the first thickened section 210, which further improves the structural strength of the first reinforcing beam 200 at the first thickened section 210 location, and also achieves the purpose of weight reduction.

[0057] In this embodiment, the two ends of the third reinforcing beam 500 can be connected to the hinge reinforcing plate 410 and the door lock reinforcing plate 450, respectively. Thus, the third reinforcing beam 500 is connected to the first reinforcing beam 200 through the third connecting plate 540, the hinge reinforcing plate 410 and the door lock reinforcing plate 450, thereby improving the overall structural strength of the first reinforcing beam 200 and the third reinforcing beam 500.

[0058] See Figure 7 , Figure 7 yes Figure 3 The diagram shows the structure of the second reinforcing beam.

[0059] In some embodiments, the door shell 100 includes an inner door panel 130 and an outer door panel disposed opposite to each other. A first reinforcing beam 200 and a second reinforcing beam 300 connect the inner door panel 130 to the side near the outer door panel. The second reinforcing beam 300 includes a protruding section 340, which at least includes a portion of a second thickened section 310. The protruding section 340 protrudes toward the direction near the outer door panel.

[0060] The first reinforcing beam 200, the second reinforcing beam 300, the third reinforcing beam 500, and other reinforcing members are arranged between the inner door panel 130 and the outer door panel. The second reinforcing beam 300 includes a protruding section 340, which protrudes outward from the end of the second reinforcing beam 300 away from the plate reinforcement group 400, at its connection with the step, towards the outer door panel. The inclination of the protrusion gradually decreases, thus forming the protruding section 340 in the central region 110, or in the central region 110 and the side region 120 away from the plate reinforcement group 400. The first reinforcing plate 430 and the second reinforcing plate 440 disposed on the second reinforcing beam 300 can be synchronously disposed according to the bending trend of the second reinforcing beam 300. Therefore, when subjected to an impact force transmitted from the outer door panel, the protruding section 340 can effectively resist the impact force, thereby improving the structural strength of the second reinforcing beam 300 and reducing the risk of impact force intrusion into the passenger compartment.

[0061] In summary, both the first reinforcing beam 200 and the second reinforcing beam 300 are arranged along the length direction X, and the thickened portions of the first reinforcing beam 200 and the second reinforcing beam 300 together cover the central region 110 in the length direction X. This reduces the dimensions of the first thickened section 210 and the second thickened section 310 in the length direction X, while also effectively protecting the central region 110. This improves the structural strength of the door assembly 10 and achieves the goal of weight reduction.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vehicle door assembly, characterized by, The door assembly includes: The door shell has a central region along the length of the door shell and side regions located on both sides of the central region; A first reinforcing beam extends along the length direction and is connected to two side regions of the door shell respectively. The first reinforcing beam has a first thickened section in the length direction. The second reinforcing beam extends along the length direction and is connected to two side regions of the door shell respectively. The second reinforcing beam is spaced apart from the first reinforcing beam in the height direction of the door shell. The second reinforcing beam has a second thickened section. The orthographic projection of the first thickened section and the second thickened section on the door shell covers the central region at least in the length direction, wherein the length direction intersects the height direction.

2. The vehicle door assembly of claim 1, wherein, The second reinforcing beam is located on the lower side of the door shell relative to the first reinforcing beam in the height direction, and the second thickened section is centered in the length direction relative to the first thickened section.

3. The vehicle door assembly of claim 2, wherein, The door assembly includes a plate reinforcement group and a first reinforcement plate spaced apart along the length direction. The plate reinforcement group is connected to the side region on one side. One end of the second reinforcement beam is connected to the side of the plate reinforcement group opposite to the door shell. The two sides opposite to the first reinforcement plate are respectively connected to the side region on the other side of the door shell and the second reinforcement beam. The orthographic projection of the first reinforcement plate on the second reinforcement beam covers the second thickened section.

4. The vehicle door assembly of claim 3, wherein, An energy-absorbing cavity is formed between the first reinforcing plate and the second reinforcing beam. The first reinforcing beam includes two first reinforcing ribs spaced apart in the height direction. The two first reinforcing ribs protrude in a direction away from the first reinforcing plate. The first reinforcing plate has two second reinforcing ribs protruding in a direction away from the second reinforcing beam. Each second reinforcing rib is respectively disposed opposite to one of the first reinforcing ribs.

5. The door assembly according to claim 3, characterized in that, The door assembly includes a second reinforcing plate, which is connected to the side of the first reinforcing plate away from the second reinforcing beam, and the second reinforcing plate is correspondingly arranged with the second thickened section.

6. The vehicle door assembly of claim 4, wherein, The first reinforcing plate is connected to a second reinforcing plate on the side opposite to the second reinforcing beam. A reinforcing groove is formed between the two second reinforcing ribs. The second reinforcing plate includes a third reinforcing rib extending in the length direction. The third reinforcing rib protrudes in the direction opposite to the first reinforcing plate and is correspondingly arranged with the reinforcing groove.

7. The vehicle door assembly of claim 3, wherein, The door assembly includes a door lock reinforcing plate spaced apart from the plate reinforcement group in the length direction. The plate reinforcement group includes a hinge reinforcing plate and a limiter reinforcing plate spaced apart in the height direction. One end of the first reinforcing beam is connected to the hinge reinforcing plate and the limiter reinforcing plate, and the other end of the first reinforcing beam is connected to the door shell through the door lock reinforcing plate.

8. The door assembly according to claim 1, characterized in that, The door assembly includes a third reinforcing beam, which includes a main beam, a first connecting plate, a second connecting plate, and a third connecting plate. The main beam is spaced apart in the height direction on the side of the first reinforcing beam away from the second reinforcing beam. The first connecting plate and the second connecting plate are spaced apart in the length direction and connected to the main beam. The third connecting plate is spaced apart from the main beam and connects the ends of the first connecting plate and the second connecting plate away from the main beam and the first thickened section.

9. The vehicle door assembly of any one of claims 1-8, wherein, The door shell includes an inner door panel and an outer door panel disposed opposite to each other. The first reinforcing beam and the second reinforcing beam connect the inner door panel to the side of the outer door panel. The second reinforcing beam includes an outwardly protruding section, which at least includes a portion of the second thickened section. The outwardly protruding section protrudes toward the direction of the outer door panel.

10. A vehicle, characterized in that, The vehicle includes a door assembly as described in any one of claims 1 to 9.

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