Vehicle door structure and vehicle

Abstract

The invention provides a vehicle door structure and a vehicle. The vehicle door structure comprises a vehicle door inner plate, a vehicle door outer plate and a reinforcing unit clamped between the vehicle door inner plate and the vehicle door outer plate. The reinforcing unit comprises a plurality of reinforcing beams which are arranged at intervals in the vertical direction of the whole vehicle, all the reinforcing beams are connected between the front end and the rear end of the vehicle door inner plate, all the reinforcing beams are downwards inclined from front to back, and the inclination angles of the reinforcing beams are gradually increased from top to bottom. According to the car door structure, the reinforcing unit is arranged between the car door inner plate and the car door outer plate, the multiple reinforcing beams in the reinforcing unit are arranged at intervals in the up-down direction of the whole car, the reinforcing beams are arranged in the downward inclining mode from front to back, and the inclination angles of the multiple reinforcing beams are gradually increased from top to bottom, so that the strength of the car door structure is improved, and the car door structure is more attractive. And the collision force transmitted to the vehicle door is dispersed and transmitted through the multiple reinforcing beams, the force transmission effect of the collision force on the vehicle door is improved, and therefore the safety of the vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts, and particularly to a door structure. At the same time, the present invention also relates to a vehicle provided with the door structure. Background Art

[0002] The door provides a passage for the driver and passengers to enter and exit the vehicle, isolates external interference, reduces side impacts to a certain extent, and protects the occupants. The quality of the door is mainly reflected in: the anti-collision performance of the door, the sealing performance of the door, the convenience of opening and closing the door, and of course other indicators of usage functions. Among them, the anti-collision performance of the door is particularly important because when a vehicle has a side collision, the buffer distance is very short and it is easy to injure the people inside the vehicle.

[0003] Currently, in order to improve the strength of the door, a strengthening structure is usually provided on the door. For example, a local reinforcing plate is provided between the inner door panel and the outer door panel, etc. However, the effect of this scheme of arranging the reinforcing plate is limited and it is not conducive to the dispersion and transmission of the collision force. Therefore, how to optimize the door structure to improve the collision performance has become an important direction in door design. Summary of the Invention

[0004] In view of this, the present invention aims to propose a door structure to improve the force transmission effect and collision performance.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] A door structure includes an inner door panel, an outer door panel, and a strengthening unit clamped between the inner door panel and the outer door panel;

[0007] The strengthening unit includes a plurality of strengthening beams arranged at intervals in the up-and-down direction of the whole vehicle. Each of the strengthening beams is connected between the front and rear ends of the inner door panel, and each of the strengthening beams is inclined downward from front to back. From top to bottom, the inclination angles of the plurality of strengthening beams gradually increase.

[0008] Further, the strengthening unit includes an upper strengthening beam, a middle strengthening beam, and a lower strengthening beam arranged at intervals on the inner door panel in the up-and-down direction of the whole vehicle;

[0009] The middle strengthening beam and / or the lower strengthening beam includes a plurality of protruding parts connected in sequence, and the cross-section of each of the protruding parts is in a "ji" shape.

[0010] Further, both the middle strengthening beam and the lower strengthening beam include two of the protruding parts connected in sequence;

[0011] The width of the middle strengthening beam is greater than the width of the lower strengthening beam, and / or the thickness of the middle strengthening beam is greater than the thickness of the lower strengthening beam.

[0012] Furthermore, along the protruding direction, at least the top of one of the protruding parts is provided with a reinforcing rib;

[0013] The reinforcing ribs are multiple and are arranged at intervals along the length direction of the protruding part.

[0014] Furthermore, the rear end of the upper reinforcing beam and / or the middle reinforcing beam has a bent part, and the bent part bends towards the side of the outer door panel and is connected to the inner door panel.

[0015] Furthermore, the front ends of the upper reinforcing beam, the middle reinforcing beam, and the lower reinforcing beam are flush in the up-down direction of the whole vehicle.

[0016] Furthermore, at least one side of the upper reinforcing beam is provided with a flanging that folds towards the inner door panel, and the flanging extends along the length direction of the upper reinforcing beam.

[0017] Furthermore, at least one of the upper reinforcing beam, the middle reinforcing beam, and the lower reinforcing beam is provided with an outwardly protruding part that protrudes outward in the width direction, and a wire passing hole is provided on the outwardly protruding part.

[0018] Furthermore, it further includes a support plate provided on the inner door panel, and the support plate is located above the reinforcing unit;

[0019] The support plate is arranged along the front-rear direction of the whole vehicle, and a glue groove is provided on the support plate, and the support plate is connected to the outer door panel through the colloid in the glue groove.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] For the door structure of the present invention, by arranging a reinforcing unit between the inner door panel and the outer door panel, and the multiple reinforcing beams in the reinforcing unit are arranged at intervals in the up-down direction of the whole vehicle, each reinforcing beam is inclined downward from front to back, and from top to bottom, the inclination angles of the multiple reinforcing beams gradually increase, which not only helps to improve the strength of the door structure, but also enables the collision force transmitted to the door to be dispersed and transmitted through the multiple reinforcing beams, which is beneficial to improving the force transmission effect of the collision force on the door, and thus is beneficial to improving the safety of the vehicle.

[0022] In addition, the structures of the upper reinforcing beam, the middle reinforcing beam, and the lower reinforcing beam are simple and easy to arrange. The multiple protruding parts that are successively connected in the middle reinforcing beam and the lower reinforcing beam are beneficial to improving their own structural strength. Setting the cross-section of the protruding part in a "ji" shape is not only easy to form but also has high structural strength. The width of the middle reinforcing beam is greater than that of the lower reinforcing beam, and the thickness of the middle reinforcing beam is greater than that of the lower reinforcing beam, which are both beneficial to improving the structural strength of the middle reinforcing beam and enhancing the force transmission effect of the middle reinforcing beam on the collision force. By setting reinforcing ribs on the top of the protruding part, it is beneficial to further enhance the structural strength of the protruding part.

[0023] In addition, the bent part at the rear end of the upper reinforcing beam and / or the middle reinforcing beam bends towards the outer door panel side and is connected to the inner door panel, which is beneficial to transmitting the collision force along the direction of the collision force through the bent part. The front ends of the upper reinforcing beam, the middle reinforcing beam, and the lower reinforcing beam are flush in the up-and-down direction of the whole vehicle, which is beneficial to further improving the dispersion and transmission effect of the collision force of the three. The flanging on at least one side of the upper reinforcing beam is beneficial to further enhancing the structural strength of the upper reinforcing beam, and the structure of the flanging is simple and easy to form. By setting a convex part and arranging a wire passing hole on the convex part, it is beneficial to the arrangement of the wire harness, the pull wire, etc. inside the door. The support plate is arranged above the reinforcing unit and is connected to the outer door panel through the colloid in the glue groove, which is beneficial to preventing the outer door panel from collapsing or generating vibration noise due to insufficient stiffness, thereby being beneficial to improving the NVH performance.

[0024] In addition, another object of the present invention is to provide a vehicle, and the vehicle is provided with the door structure as described above.

[0025] For the vehicle described in the present invention, by setting the door as described above, it is beneficial to improve the collision safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0027] Figure 1 is a schematic structural diagram of the door structure according to the embodiment of the present invention from the first perspective;

[0028] Figure 2 is a schematic structural diagram of the door structure according to the embodiment of the present invention from the second perspective;

[0029] Figure 3 is a schematic structural diagram of the door structure according to the embodiment of the present invention from the third perspective;

[0030] Figure 4 is Figure 3 the enlarged view of part A in

[0031] Figure 5 The structural schematic diagram of the upper reinforcing beam described in the embodiment of the present invention from one perspective;

[0032] Figure 6 The structural schematic of the upper reinforcing beam described in the embodiment of the present invention from another perspective;

[0033] Figure 7 The structural schematic diagram of the middle reinforcing beam described in the embodiment of the present invention from one perspective;

[0034] Figure 8 The structural schematic of the middle reinforcing beam described in the embodiment of the present invention from another perspective;

[0035] Figure 9 The structural schematic diagram of the lower reinforcing beam described in the embodiment of the present invention from one perspective;

[0036] Figure 10 The structural schematic of the lower reinforcing beam described in the embodiment of the present invention from another perspective;

[0037] Figure 11 The structural schematic diagram of the support plate described in the embodiment of the present invention;

[0038] Figure 12 The schematic diagram of the force transmission direction of the door structure described in the embodiment of the present invention.

[0039] Explanation of reference numerals:

[0040] 1, inner door panel; 2, support plate; 3, upper reinforcing beam; 4, middle reinforcing beam; 5, lower reinforcing beam;

[0041] 100, second wire passing hole; 101, reinforcing plate;

[0042] 200, first wire passing hole; 201, glue groove;

[0043] 301, reinforcing protrusion; 302, first outward convex part; 303, flanging; 304, first bending part; 305, first reinforcing rib;

[0044] 401, protruding part; 402, second reinforcing rib; 403, second bending part; 404, second outward convex part; 405, third outward convex part;

[0045] 501, fourth outward convex part; 502, fifth outward convex part. Detailed implementation manners

[0046] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0047] In the description of the present invention, it should be noted that in this embodiment, the orientation terms such as "upper, lower, left, right, front, and back" are defined based on the up-down direction, left-right direction, and front-back direction of the vehicle. Among them, the up-down direction of the vehicle is also the height direction (Z direction) of the vehicle, the front-back direction of the vehicle is also the length direction (X direction) of the vehicle, and the left-right direction of the vehicle is also the width direction (Y direction) of the vehicle. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "mounted", "connected", "connected to", and "connecting member" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific situations.

[0049] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0050] This embodiment relates to a door structure. In terms of the overall composition, the door structure includes a door inner panel 1, a door outer panel, and a reinforcing unit sandwiched between the door inner panel 1 and the door outer panel.

[0051] Among them, the reinforcing unit includes a plurality of reinforcing beams arranged at intervals along the up-down direction of the whole vehicle. Each reinforcing beam is connected between the front and rear ends of the door inner panel 1, and each reinforcing beam is inclined downward from front to back. From top to bottom, the inclination angles of the plurality of reinforcing beams gradually increase.

[0052] For the door structure of this embodiment, by arranging a reinforcing unit between the door inner panel 1 and the door outer panel, and the plurality of reinforcing beams in the reinforcing unit are arranged at intervals along the up-down direction of the whole vehicle, each reinforcing beam is inclined downward from front to back, and from top to bottom, the inclination angles of the plurality of reinforcing beams gradually increase, which not only helps to improve the strength of the door structure, but also enables the collision force transmitted to the door to be dispersed and transmitted through the plurality of reinforcing beams, which is beneficial to improving the force transmission effect of the collision force on the door, and thus is beneficial to improving the safety of the vehicle.

[0053] Based on the above overall introduction, an exemplary structure of the door structure in this embodiment is as Figures 1 to 3 shown in the figure. To highlight the structure of the reinforcing unit, only the structure of the door inner panel 1 is schematically shown in the figure. As a preferred implementation manner, the reinforcing unit in this embodiment includes an upper reinforcing beam 3, a middle reinforcing beam 4, and a lower reinforcing beam 5 arranged at intervals along the up-down direction of the whole vehicle on the door inner panel 1. The structures of the three reinforcing beams are simple and convenient to arrange between the door inner panel 1 and the door outer panel.

[0054] As a preferred embodiment, as Figure 2 shown in, the first included angle α between the extension line m of the upper reinforcing beam 3 and the vehicle body's x direction, the second included angle β between the extension line n of the middle reinforcing beam 4 and the vehicle body's x direction, and the third included angle γ between the extension line p of the lower reinforcing beam 5 and the vehicle body's x direction satisfy the relationship: α < β < γ. In this embodiment, the range of the first included angle α is 8° ≤ α ≤ 12°, the range of the second included angle β is 12° ≤ β ≤ 18°, and the range of the third included angle γ is 18° ≤ β ≤ 22°.

[0055] Specifically in implementation, the first included angle α can be 8°, 10° or 12°, the second included angle β can be 12°, 15° or 18°, and the third included angle γ can be 18°, 20° or 22°. Preferably, the first included angle α can be 10°, the second included angle β can be 15°, and the third included angle γ can be 20°. The upper reinforcing beam 3, the middle reinforcing beam 4, and the lower reinforcing beam 5 are arranged at equal angles, so that the collision force transmitted to the door can be more evenly dispersed forward and backward through the three reinforcing beams, thereby improving the force transmission effect of the collision force. Of course, specifically in implementation, the values of the first included angle α, the second included angle β, and the third included angle γ can still be determined according to the usage requirements.

[0056] As Figure 1 shown in, on the outer side of the front end of the inner door panel 1, a reinforcing plate 101 extending in the height direction is provided. The front ends of the upper reinforcing beam 3, the middle reinforcing beam 4, and the lower reinforcing beam 5 are respectively connected to the outer side of the reinforcing plate 101, and the rear ends of the three are respectively connected to the rear part of the outer door panel. Here, the structure of the reinforcing plate 101 is simple, which is beneficial to improving the strength of the door structure. At the same time, the reinforcing plate 101 lap-joints and welds the front ends of the three reinforcing beams together, which is also beneficial to improving the structural reliability when the collision force is transmitted at the front ends of the three.

[0057] For the convenience of connection between the front end of the upper reinforcing beam 3 and the reinforcing plate 101, combining Figure 5 and Figure 6 shown in, the cross-sections of the front end and the rear end of the upper reinforcing beam 3 are both in a "Ji" shape. The upper reinforcing beam 3 is connected to the inner door panel 1 by welding the horizontal parts at both ends to the reinforcing plate 101 and the inner door panel 1 respectively. The cross-sectional shape at both ends of this upper reinforcing beam 3 takes into account electrophoresis and dimension matching for space avoidance, and at the same time can increase the connection strength between both ends of the upper reinforcing beam 3 and the inner door panel 1.

[0058] In addition, a plurality of reinforcing protrusions 301 are arranged at intervals along the length direction of the upper reinforcing beam 3, and reinforcing ribs are respectively arranged on each of the reinforcing protrusions 301 to further improve the structural strength of the upper reinforcing beam 3. Here, the structures of the reinforcing protrusions 301 and the reinforcing ribs are simple, easy to form, and have good use effects. For the convenience of distinguishing from the following reinforcing ribs, in this embodiment, the reinforcing ribs arranged on the reinforcing protrusions 301 are called the first reinforcing ribs 305.

[0059] Still as shown in the figure, flanges 303 that are folded towards the inner door panel 1 are provided on both the upper and lower sides of the upper reinforcing beam 3, and the flanges 303 extend along the length direction of the upper reinforcing beam 3. The flanges 303 here significantly improve the strength of the upper reinforcing beam 3, and the structures of the flanges 303 are simple and easy to form. Of course, the scheme of only arranging the flanges 303 on one side of the upper reinforcing beam 3 is also feasible.

[0060] As Figures 7 to 10 shown in the figure, in this embodiment, the cross-sections of the front and rear ends of the middle reinforcing beam 4 and the lower reinforcing beam 5 are also both in a "ji" shape. The front ends of both are welded to the reinforcing plate 101, and the rear ends of both are welded to the inner door panel 1. In this embodiment, a total of three weld points among the front and rear ends of the middle reinforcing beam 4 and the lower reinforcing beam 5, which are located between and on both sides of the two protruding parts 401, are used to connect to the reinforcing plate 101 and the inner door panel 1.

[0061] Here, by respectively arranging three weld points at the rear ends of the middle reinforcing beam 4 and the lower reinforcing beam 5, it is beneficial to increase the welding area between the middle reinforcing beam 4 and the inner door panel 1, and between the rear reinforcing beam and the inner door panel 1. The three weld points are arranged at intervals, which is also beneficial to improving the absorption and transmission effects of the middle reinforcing beam 4 and the rear reinforcing beam on the collision force, enabling the collision force to be dispersed and transmitted through the middle reinforcing beam 4, and improving the dispersion effect on the collision force. At the same time, it is also beneficial to ensure the reliability of the connection between the middle reinforcing beam 4 and the inner door panel 1.

[0062] Preferably, the middle reinforcing beam 4 and / or the lower reinforcing beam 5 includes a plurality of protruding parts 401 connected in sequence, and the cross-section of each protruding part 401 is in a "ji" shape. As Figures 7 to 10 shown in the figure, preferably, both the middle reinforcing beam 4 and the lower reinforcing beam 5 include two protruding parts 401 connected in sequence, and the two protruding parts 401 are connected in sequence along the up and down direction.

[0063] Of course, during specific implementation, the number of the protruding parts 401 respectively provided on the middle reinforcing beam 4 and the lower reinforcing beam 5 can still be adaptively adjusted according to the use requirements. In addition, the scheme of only one of the middle reinforcing beam 4 and the lower reinforcing beam 5 being provided with the protruding parts 401 is also feasible.

[0064] In this embodiment, each protruding part 401 protrudes towards the outer door panel. Due to the setting of the protruding part 401, a cavity with an open mouth is formed on the side of the protruding part 401 facing the inner door panel 1. This cavity not only helps to improve the structural strength but also has a good transmission effect on the collision force. The collision force transmitted to the outer door panel is transmitted to the corresponding reinforcing beam through the protruding part 401 and is dispersed and transmitted through the reinforcing beam.

[0065] Considering that the collision force is easily applied to the middle of the door, the middle reinforcing beam 4 is a key component for receiving the collision force. Therefore, to improve the structural strength of the middle part of the door, the width of the middle reinforcing beam 4 is greater than the width of the lower reinforcing beam 5, and the thickness of the middle reinforcing beam 4 is greater than the thickness of the lower reinforcing beam 5. By increasing the width and thickness of the middle reinforcing beam 4 here, it is beneficial to enhance the structural strength of the middle reinforcing beam 4, thereby facilitating the improvement of its dispersion and transmission effects on the collision force.

[0066] In this embodiment, the thickness of the middle reinforcing beam 4 is generally a hot-forming material of 1.6 mm. Considering that the rear reinforcing beam 5 is a secondary force-bearing part for the collision, the thickness of the lower reinforcing beam 5 is generally a common material of 1.2 mm. Of course, the thickness and width values of both the middle reinforcing beam 4 and the lower reinforcing beam 5, as well as the materials required for forming, etc. can be determined according to the usage requirements.

[0067] In this embodiment, along the protruding direction, that is, the protruding direction of the protruding part 401, at least one of the tops of the protruding parts 401 is provided with reinforcing ribs, and the reinforcing ribs are multiple and arranged at intervals along the length direction of the protruding part 401. To distinguish and describe from the above-mentioned reinforcing ribs, the reinforcing ribs provided on the protruding part 401 are called the second reinforcing ribs 402.

[0068] As shown in Figures 7 to 10 each of the tops of the protruding parts 401 is provided with the second reinforcing ribs 402, and the multiple second reinforcing ribs 402 on the two protruding parts 401 are staggered in the extending direction of the corresponding reinforcing beam. This is beneficial to further improve the bearing capacity and transmission effect of the reinforcing beam on the collision force. At the same time, the structure of the second reinforcing rib 402 is simple, easy to process and form, and has a good use effect.

[0069] As a preferred implementation manner, as shown in Figure 4 the rear ends of the upper reinforcing beam 3 and the middle reinforcing beam 4 have bending parts, and the bending parts bend towards the outer door panel side and are connected to the inner door panel 1. For easy distinction and description, the bending part provided on the upper reinforcing beam 3 is called the first bending part 304, and the bending part on the middle reinforcing beam 4 is called the second bending part 403.

[0070] In this embodiment, by setting the bending directions of the first bending portion 304 and the second bending portion 403 to be the same as the direction of the collision force, it is beneficial to ensure the collision strength at the rear ends of the upper reinforcing beam 3 and the middle reinforcing beam 4. At the same time, the bending portion is also beneficial to further improve the connection effect between the upper reinforcing beam 3 and the middle reinforcing beam 4 and the inner door panel 1.

[0071] In this embodiment, as Figure 2 shown in the figure, the front ends of the upper reinforcing beam 3, the middle reinforcing beam 4, and the lower reinforcing beam 5 are flush with each other in the up-and-down direction of the whole vehicle. That is, the front ends of the upper reinforcing beam 3, the middle reinforcing beam 4, and the lower reinforcing beam 5 are aligned at the alignment line q extending in the vertical direction. The alignment line q is arranged corresponding to the front side of the reinforcing plate 101, so that the three reinforcing beams are integrally arranged in a radial shape on the inner door panel 1 with the alignment point as the center. The alignment of the three reinforcing beams here not only facilitates the layout of the three reinforcing beams on the inner door panel 1 and improves the connection strength between them, but also is beneficial to the cooperation between the three reinforcing beams, thereby further improving the dispersion and transmission effect of the collision force.

[0072] In addition, at least one of the upper reinforcing beam 3, the middle reinforcing beam 4, and the lower reinforcing beam 5 is provided with an outwardly convex portion protruding in the width direction, and a wire passing hole is provided on the outwardly convex portion. Specifically, in the structure of this embodiment, the electrical wiring harness is mainly concentrated near the lower reinforcing beam 5. As Figures 5 to 10 shown in the figure, two first outwardly convex portions 302 are arranged at intervals on the upper side of the middle part of the lower reinforcing beam 5, and a second outwardly convex portion 404 is provided on the lower side of the front end of the lower reinforcing beam 5.

[0073] Wire passing holes are provided on both the first outwardly convex portion 302 and the second outwardly convex portion 404. For the convenience of distinction and description, the wire passing holes here are called the first wire passing holes 200. The first wire passing holes 200 are used for the wire harness arranged inside the door to pass through, so as to improve the smoothness of the wire harness layout. In order to avoid collisions or other abnormal noises, each of the first outwardly convex portions 302 and the second outwardly convex portions 404 is in a semicircular shape, which is beneficial to preventing the outwardly convex portion from scratching the wire harness.

[0074] In addition, a third outwardly convex portion 405 is provided on the upper side of the middle part of the upper reinforcing beam 3, two fourth outwardly convex portions 501 are arranged at intervals on the upper side of the middle part of the middle reinforcing beam 4, and a fifth outwardly convex portion 502 is provided on the lower side of the middle part of the middle reinforcing beam 4. Among them, second wire passing holes 100 are provided on the third outwardly convex portion 405, the fourth outwardly convex portions 501, and the fifth outwardly convex portion 502 to ensure that the wire pulling direction is in accordance with the designed angle, which is beneficial to the smoothness of the door opening and closing.

[0075] In this embodiment, the third convex part 405, the second convex part, and the fifth convex part 502 can all be set to be semi-circular according to the usage requirements, so as to have a better protection effect. It can be understood that whether convex parts are provided on the upper strengthening beam 3, the middle strengthening beam 4, and the lower strengthening beam 5, as well as the position and quantity of the convex parts, etc., can all be determined according to the usage requirements.

[0076] The door structure in this embodiment further includes a support plate 2 provided on the inner door panel 1, and the support plate 2 is located above the strengthening unit. The support plate 2 is arranged along the front-back direction of the whole vehicle, and a glue groove 201 is provided on the support plate 2. The support plate 2 is connected to the outer door panel through the glue in the glue groove 201. The glue here can adopt products with good bonding performance such as expansion glue in the existing technology. By arranging the support plate 2 above the strengthening unit and connecting the glue in the glue groove 201 to the outer door panel, it is beneficial to prevent the outer door panel from collapsing due to insufficient stiffness or causing vibration noise, thereby being beneficial to improving the NVH performance.

[0077] Combined Figure 1 and Figure 11 As shown in, the support plate 2 in this embodiment extends and is arranged outside the bottom of the window, and the front end of the support plate 2 is welded and connected to the strengthening plate 101, and the rear end is welded and connected to the inner door panel 1. A downwardly folded downward flange 202 is provided on one side of the bottom of the support plate 2, and the above-mentioned glue grooves 201 are multiple and arranged at intervals on the downward flange 202. Here, the structure of the downward flange 202 is simple, which is beneficial to the formation of the glue grooves 201 and has a good use effect.

[0078] When a side collision occurs to the door structure in this embodiment, the force transmission direction of the collision force is as Figure 12 shown in. The collision force is transmitted from the outer door panel to the middle parts of each strengthening beam, and is respectively dispersed and transmitted forward and backward through each strengthening beam, so that the collision force is dispersed and transmitted in multiple directions in the up-down direction and the front-back direction, which is beneficial to improving the collision performance of the door structure, thereby preventing the injury of the occupants in the vehicle when the door undergoes a side collision.

[0079] For the door structure in this embodiment, the arrangement mode of multiple strengthening beams on the inner door panel 1 is simple, and the strength of each strengthening beam is improved according to its own arrangement position and usage requirements. This is not only beneficial to improving the use effect of a single strengthening beam, but also by optimizing the position and connection relationship between multiple strengthening beams, multiple strengthening beams cooperate with each other to disperse and transmit the collision force acting on the door, thereby being beneficial to improving the collision performance of the door structure.

[0080] In addition, by optimizing the cross-sectional shape, thickness, and length of each reinforcing beam, etc., the door structure in this embodiment can meet the usage requirements of different vehicle models. During specific implementation, in the early stage of door structure design, CAE (abbreviation for Computer Aided Engineering) simulation analysis software can be used to perform structural simulation analysis on the door structure in this embodiment, which is conducive to quickly determining the specifications of each reinforcing beam (including the cross-sectional shape, thickness, and length of each reinforcing beam), so as to obtain a door structure that meets the usage requirements of different vehicle models, and then conduct structural verification. This also helps to reduce production costs.

[0081] In addition, this embodiment also relates to a vehicle, which is provided with the door structure as described above.

[0082] For the vehicle of this embodiment, by providing the door as described above, it is conducive to improving the collision safety of the vehicle.

[0083] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle door structure, characterized in that: It includes an inner door panel (1), an outer door panel, and a reinforcing unit sandwiched between the inner door panel (1) and the outer door panel; The reinforcing unit includes a plurality of reinforcing beams arranged at intervals in the up-down direction of the whole vehicle. Each of the reinforcing beams is connected between the front and rear ends of the inner door panel (1), and each of the reinforcing beams is inclined downward from front to back. From top to bottom, the inclination angles of the plurality of reinforcing beams gradually increase.

2. The vehicle door structure according to claim 1, characterized in that: The reinforcing unit includes an upper reinforcing beam (3), a middle reinforcing beam (4), and a lower reinforcing beam (5) arranged at intervals on the inner door panel (1) in the up-down direction of the whole vehicle; The middle reinforcing beam (4) and / or the lower reinforcing beam (5) includes a plurality of protruding parts (401) connected in sequence, and the cross-section of each of the protruding parts (401) is in a "ji" shape.

3. The vehicle door structure according to claim 2, characterized in that: Both the middle reinforcing beam (4) and the lower reinforcing beam (5) include two of the protruding parts (401) connected in sequence; The width of the middle reinforcing beam (4) is greater than the width of the lower reinforcing beam (5), and / or the thickness of the middle reinforcing beam (4) is greater than the thickness of the lower reinforcing beam (5).

4. The vehicle door structure according to claim 2, characterized in that: Along the protruding direction, at least one of the tops of the protruding parts (401) is provided with a reinforcing rib; The reinforcing ribs are a plurality of spaced along the length direction of the protruding part (401).

5. The vehicle door structure according to claim 2, characterized in that: The rear end of the upper reinforcing beam (3) and / or the middle reinforcing beam (4) has a bent part, and the bent part bends toward the outer door panel side and is connected to the inner door panel (1).

6. The vehicle door structure according to claim 2, characterized in that: The front ends of the upper reinforcing beam (3), the middle reinforcing beam (4), and the lower reinforcing beam (5) are flush in the up-down direction of the whole vehicle.

7. The vehicle door structure according to claim 2, characterized in that: At least one side of the upper reinforcing beam (3) is provided with a flange (303) folded toward the inner door panel (1), and the flange (303) extends along the length direction of the upper reinforcing beam (3).

8. The vehicle door structure according to claim 2, characterized in that: At least one of the upper reinforcing beam (3), the middle reinforcing beam (4), and the lower reinforcing beam (5) is provided with an outwardly protruding part protruding in the width direction, and a wire passing hole is provided on the outwardly protruding part.

9. The vehicle door structure according to any one of claims 1 to 8, characterized in that: It further includes a support plate (2) provided on the inner door panel (1), and the support plate (2) is located above the reinforcing unit; The support plate (2) is arranged in the front-rear direction of the whole vehicle, and the support plate (2) is provided with a glue groove (201), and the support plate (2) is connected to the outer door panel through the glue in the glue groove (201).

10. A vehicle, characterized in that: The vehicle is provided with the door structure according to any one of claims 1 to 9.

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