Vehicle door structure, vehicle body assembly and vehicle

Abstract

The utility model provides a vehicle door structure, a vehicle body assembly and a vehicle. The vehicle door structure comprises a vehicle door inner plate, an anti-collision beam, a front reinforcing plate and a rear reinforcing plate. The anti-collision beam is arranged on the outer side face of the automobile door inner plate. The rear end of the front reinforcing plate is connected with the front portion of the anti-collision beam, and the front end of the front reinforcing plate is connected with the front end of the outer side face of the automobile door inner plate. The rear reinforcing plate is located on the rear side of the front reinforcing plate and connected between the rear portion of the anti-collision beam and the vehicle door inner plate. According to the vehicle door structure, the overall rigidity of the vehicle door structure is high, and the anti-torsion performance is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle door structure, a vehicle body assembly and a vehicle. BACKGROUND

[0002] In the related art, the vehicle door structure has insufficient rigidity and poor torsion resistance. In a vehicle side impact test, the vehicle door structure is prone to deformation, and the intrusion of the vehicle door structure into the vehicle body is large, which exceeds the standard for the dummy injury value. SUMMARY

[0003] Therefore, the present application provides a vehicle door structure, a vehicle body assembly and a vehicle, which can improve the rigidity of the vehicle door structure and the torsion resistance of the vehicle door structure.

[0004] In a first aspect, the present application provides a vehicle door structure, comprising: a vehicle door inner panel, a bumper beam, a front reinforcement plate and a rear reinforcement plate. The bumper beam is arranged on the outer side of the vehicle door inner panel; the rear end of the front reinforcement plate is connected to the front part of the bumper beam, and the front end of the front reinforcement plate is connected to the front end of the outer side of the vehicle door inner panel; and the rear reinforcement plate is located on the rear side of the front reinforcement plate and connected between the rear part of the bumper beam and the vehicle door inner panel.

[0005] According to the vehicle door structure of the present application, the front reinforcement plate and the rear reinforcement plate are integrated in the vehicle door structure. On the one hand, the front reinforcement plate is connected between the front part of the bumper beam and the front end of the vehicle door inner panel, so that the front reinforcement plate can reinforce the front part of the vehicle door structure. On the other hand, the rear reinforcement plate is connected between the rear part of the bumper beam and the vehicle door inner panel, so that the rear reinforcement plate can reinforce the rear part of the vehicle door structure. Therefore, the overall rigidity of the vehicle door structure is improved, the torsion resistance of the vehicle door structure is increased, the deformation of the vehicle door structure is reduced when the vehicle is side-impacted, the intrusion of the vehicle door structure into the vehicle body is reduced, the safety of the vehicle is improved at least to some extent, the service life of the vehicle is improved, and the safety index of the vehicle when side-impacted is met.

[0006] In a possible implementation manner of the present application, the vehicle door structure further comprises a hinge reinforcement plate arranged at the front end of the outer side of the vehicle door inner panel; the front end of the front reinforcement plate is overlapped and fixed with the hinge reinforcement plate, the front end of the bumper beam is overlapped and fixed with the hinge reinforcement plate, and the front end of the front reinforcement plate is spaced apart from the front end of the bumper beam in the up-down direction.

[0007] In a possible implementation manner of the present application, the rear end of the front reinforcement plate is overlapped and fixed with the bumper beam.

[0008] In one possible implementation of this application, the inner door panel includes a first part and a second part. The first part is recessed toward the interior of the vehicle to form a reinforcing groove, and the second part is connected to the outer periphery of the first part. The anti-collision beam crosses the reinforcing groove in the front-rear direction and is fixed together with the second part.

[0009] In one possible implementation of this application, the rear reinforcing plate is located on the side of the anti-collision beam facing the inner panel of the door, and at least a portion of the rear reinforcing plate is located in the reinforcing groove and connected to the bottom wall of the reinforcing groove.

[0010] In one possible implementation of this application, the rear reinforcing plate includes a first flat segment, a bent segment, and a second flat segment connected in sequence; wherein, both the first flat segment and the second flat segment are connected to the anti-collision beam, and both the first flat segment and the bent segment are located in the reinforcing groove, with the bent segment bending towards the bottom wall of the reinforcing groove and connecting to the bottom wall of the reinforcing groove.

[0011] In one possible implementation of this application, the second flat segment is located between the second part and the anti-collision beam, and is connected to the second part.

[0012] In one possible implementation of this application, the rear reinforcement plate is located on the side of the anti-collision beam facing the inner door panel, and the length of the overlapping area of ​​the rear reinforcement plate and the anti-collision beam is greater than or equal to 170 mm; and / or, in the direction from front to back, the anti-collision beam extends downward at an angle; the front reinforcement plate is located below the anti-collision beam.

[0013] Secondly, this application provides a vehicle body assembly, including: a vehicle body and a door structure as described in any of the above-mentioned technical solutions. The vehicle body has a door opening, and the door structure is hinged to the vehicle body to open or close the door opening.

[0014] In one implementation of the second aspect of this application, when the door structure closes the door opening, the rear end of the rear reinforcing plate overlaps with the rear edge of the door opening in the left-right direction; the rear end of the anti-collision beam overlaps with the rear edge of the door opening in the left-right direction.

[0015] In one implementation of the second aspect of this application, the vehicle body includes an inner side panel and a B-pillar reinforcing plate. The inner side panel has a door opening, and the B-pillar reinforcing plate is stacked on the inner side panel and located behind the door opening.

[0016] When the door structure closes the door opening, the rear end of the anti-collision beam and the rear end of the rear reinforcement plate overlap with the B-pillar reinforcement plate in the left-right direction.

[0017] In one implementation of the second aspect of this application, when the door structure closes the door opening, the overlap length between the anti-collision beam and the B-pillar reinforcement plate is greater than or equal to 60 mm; and / or, when the door structure closes the door opening, the overlap length between the rear reinforcement plate and the B-pillar reinforcement plate is greater than or equal to 20 mm.

[0018] In a third aspect, the present application provides a vehicle comprising the vehicle body assembly according to any of the above technical solutions.

[0019] The technical effects of the second and third aspects of the present application can refer to the technical effects of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic view of a vehicle door structure provided in the related art.

[0021] Figure 2 A schematic view of a vehicle provided for some embodiments of the present application.

[0022] Figure 3 A schematic view of a vehicle door structure according to Figure 2

[0023] Figure 4 Another view of a schematic view of a vehicle door structure according to Figure 3

[0024] Figure 5 A schematic view of a vehicle door structure and a vehicle body in a vehicle according to Figure 2

[0025] Figure 6 A schematic view of a structure according to Figure 5

[0026] REFERENCE SIGNS:

[0027] Vehicle 1000;

[0028] Vehicle body assembly 100;

[0029] Vehicle door structure 10; inner door panel 11; first part 111; second part 112; reinforcing groove 1121; anti-collision beam 12; front reinforcing plate 13; rear reinforcing plate 14; first flat segment 141; bending segment 142; second flat segment 143; hinge reinforcing plate 15;

[0030] Vehicle body 20; inner side panel 21; door opening 211; B-pillar reinforcing plate 22; rocker reinforcing plate 23; power assembly mounting cavity 201;

[0031] Power assembly 200. DETAILED DESCRIPTION

[0032] ​​​​In the embodiments of the present application, the term "exemplary" or "for example" is used to indicate an example, an illustration, or a description. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or having more advantages than other embodiments or design solutions. In fact, the term "exemplary" or "for example" is used in the sense of that related concept is presented in a particular manner.

[0033] In the embodiments of the present application, the terms "first", "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0034] In the description of the embodiments of the present application, the term "at least one" refers to one or more, and "multiple" refers to two or more. "At least one of the following (one)" or the like refers to any combination of these items, including any combination of single item (one) or multiple items. For example, at least one of a, b, or c can represent a, b, c, a+b, a+c, b+c, or a+b+c, where a, b, and c can be single or multiple.

[0035] In the description of the embodiments of the present application, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects are in an "or" relationship.

[0036] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, "connection" can be detachable connection, or can be non-detachable connection; can be direct connection, or indirect connection through intermediate medium.

[0037] In the related art, please refer to Figure 1 In the vehicle door structure 10, an anti-collision beam 12 extending in the front-rear direction is usually arranged on a door inner panel 11 to improve the rigidity. However, the rigidity of the vehicle door structure 10 in the related art is still insufficient, and the anti-torsion performance is poor. In the vehicle side impact test, the vehicle door structure 10 is easy to deform, and the intrusion amount of the vehicle door structure 10 into the vehicle body interior is large, and the dummy injury value is out of limit.

[0038] Based on this, the application provides a vehicle. The vehicle includes but is not limited to a fuel vehicle, a new energy vehicle, and a hybrid vehicle. Moreover, the vehicle includes but is not limited to a family car, a bus, and the like.

[0039] Please refer to Figure 2 , the vehicle 1000 can include a vehicle body assembly 100 and a power assembly 200.

[0040] The power assembly 200 can be mounted on the vehicle body assembly 100, for providing power for driving the vehicle 1000.

[0041] For example, the vehicle body assembly 100 has a power assembly mounting cavity 201, and the power assembly 200 is mounted in the power assembly mounting cavity 201. The power assembly 200 includes but is not limited to an engine and an electric motor.

[0042] Please continue to refer to Figure 2 , the vehicle body assembly 100 includes a vehicle body 20 and a door structure 10.

[0043] The vehicle body 20 has a door opening 211. The door structure 10 can be mounted at the door opening 211, for opening or closing the door opening 211. When the door structure 10 opens the door opening 211, it can facilitate the user to enter the vehicle body 20 or to get out of the vehicle body 20.

[0044] Specifically, the door structure 10 is hinged to the vehicle body 20. In this way, through the hinged connection of the door structure 10 and the vehicle body 20, the door structure 10 can be facilitated to open or close the door opening 211.

[0045] Specifically, the above-mentioned power assembly mounting cavity 201 can be formed on the vehicle body 20. For example, as shown in Figure 2 , the power assembly mounting cavity 201 can be formed on the front of the vehicle body 20.

[0046] Herein, it can be understood that "front" and "rear", "upper" and "lower", and "left" and "right" are all relative directions, and are taken as the vehicle 1000 as a reference. The front of the vehicle 1000 is defined as front, the rear of the vehicle 1000 is defined as rear, the left of the vehicle 1000 is defined as left, the right of the vehicle 1000 is defined as right, the upper of the vehicle 1000 is defined as upper, and the lower of the vehicle 1000 is defined as lower.

[0047] Please refer to Figure 3 and Figure 4 , the door structure 10 includes a door inner panel 11, a bumper beam 12, a front reinforcement plate 13, and a rear reinforcement plate 14.

[0048] The bumper beam 12 is arranged on the outer side of the door inner panel 11.

[0049] The connection relationship between the front reinforcing plate 13 and the anti-collision beam 12 includes but is not limited to welding.

[0050] It is worth mentioning that the outer side of the door inner plate 11 refers to the side surface of the door inner plate 11 away from the inside of the vehicle 1000. On the contrary, the inner side of the door inner plate 11 refers to the side surface of the door inner plate 11 towards the inside of the vehicle 1000.

[0051] Exemplarily, the anti-collision beam 12 can be hot-pressed. In this way, the anti-collision beam 12 has a high yield strength, which can improve the bending resistance of the anti-collision beam 12, thereby improving the anti-collision effect of the anti-collision beam 12.

[0052] Exemplarily, the yield strength of the anti-collision beam 12 is 1300 MPa or more. In this way, the bending resistance of the anti-collision beam 12 is better, and the anti-collision effect of the anti-collision beam 12 is better.

[0053] For example, the yield strength of the anti-collision beam 12 is 1350 MPa, 1400 MPa, 1450 MPa, 1500 MPa, 1550 MPa, or 1600 MPa.

[0054] Exemplarily, the material of the anti-collision beam 12 includes but is not limited to high-strength steel, glass fiber, and aluminum alloy.

[0055] The rear end of the front reinforcing plate 13 is connected to the front part of the anti-collision beam 12, the front end of the front reinforcing plate 13 is connected to the front end of the outer side of the door inner plate 11, and the front reinforcing plate 13 and the anti-collision beam 12 are distributed in the up-down direction.

[0056] The connection relationship between the front reinforcing plate 13 and the anti-collision beam 12 includes but is not limited to welding.

[0057] The front reinforcing plate 13 can be hot-pressed or cold-rolled. In the specific examples of the present application, the front reinforcing plate 13 can be cold-rolled, which can reduce the processing cost.

[0058] Exemplarily, the yield strength of the front reinforcing plate 13 is 180 MPa or more. For example, the yield strength of the front reinforcing plate 13 is 190 MPa, 200 MPa, 210 MPa, 220 MPa, 230 MPa, 250 MPa, 260 MPa, or 280 MPa.

[0059] The material of the front reinforcing plate 13 includes but is not limited to high-strength steel and aluminum alloy.

[0060] The rear reinforcing plate 14 is located at the rear side of the front reinforcing plate 13 and is connected between the rear part of the anti-collision beam 12 and the door inner plate 11.

[0061] The connection relationship between the rear reinforcing plate 14 and the anti-collision beam 12 includes but is not limited to welding.

[0062] Wherein, the "front part" of the bumper beam 12 refers to the area on the bumper beam 12 which is in front of the center of the bumper beam 12, and the "rear part" of the bumper beam 12 refers to the area on the bumper beam 12 which is behind the center of the bumper beam 12.

[0063] The rear reinforcement plate 14 can be hot press formed or cold roll formed. In the specific example of the present application, the rear reinforcement plate 14 can be cold roll formed, which can reduce the processing cost.

[0064] For example, the yield strength of the rear reinforcement plate 14 is 190 MPa, 200 MPa, 210 MPa, 220 MPa, 230 MPa, 250 MPa, 260 MPa, or 280 MPa.

[0065] The material of the rear reinforcement plate 14 includes but is not limited to high-strength steel and aluminum alloy.

[0066] As can be seen from the above analysis, in the door structure 10, the front reinforcement plate 13 and the rear reinforcement plate 14 are integrated, on the one hand, the front reinforcement plate 13 is connected between the front part of the bumper beam 12 and the front end of the inner door panel 11, so that the front reinforcement plate 13 plays a role in strengthening the front part of the door structure 10; on the other hand, the rear reinforcement plate 14 is connected between the rear part of the bumper beam 12 and the inner door panel 11, so that the rear reinforcement plate 14 plays a role in strengthening the rear part of the door structure 10, thereby improving the overall stiffness of the door structure 10, increasing the overall torsional resistance of the door structure 10, reducing the degree of deformation of the door structure 10 when the vehicle 1000 is side-impacted, reducing the amount of intrusion of the door structure 10 into the vehicle body 20, at least to some extent, improving the safety of the vehicle 1000, improving the service life of the vehicle 1000, and meeting the relevant regulations for the safety index of the vehicle 1000 when side-impacted.

[0067] In some embodiments of the present application, please refer to Figure 2 and Figure 3 The inner door panel 11 includes a first part 111 and a second part 112.

[0068] The first part 111 is recessed towards the inside of the vehicle 1000 to form a reinforcing groove 1121, and the second part 112 is connected to the outer periphery of the first part 111. The bumper beam 12 spans the reinforcing groove 1121 in the front-rear direction and is connected to the second part 112. In this way, the reinforcing groove 1121 can play a role in improving the structural strength of the inner door panel 11, and on the other hand, it can also play a role in avoiding the deformation of the bumper beam 12 when the vehicle 1000 is side-impacted, thereby preventing the deformation of the inner door panel 11 caused by the deformation of the bumper beam 12.

[0069] In some embodiments of the present application, the door structure 10 further comprises a hinge reinforcement plate 15. The hinge reinforcement plate 15 is arranged at the front end of the outer side of the door inner panel 11. For example, the hinge reinforcement plate 15 is arranged at the second portion 112 described above, and is located at the front side of the reinforcement groove 1121.

[0070] The connection relationship between the hinge reinforcement plate 15 and the anti-collision beam 12 includes but is not limited to welding.

[0071] The vehicle body assembly 100 can further comprise a hinge (not shown in the figure). One end of the hinge is connected to the hinge reinforcement plate 15, and the other end of the hinge is connected to the front edge of the door hole 211 described above. In this way, the door structure 10 can be hingedly connected to the vehicle body 20 through the hinge.

[0072] For example, there can be two hinge reinforcement plates 15, which are distributed in the up-down direction (i.e., an upper hinge reinforcement plate and a lower hinge reinforcement plate). There can be two hinges, which correspond to the two hinge reinforcement plates 15 one-to-one. In this way, the hinge connection reliability of the vehicle body 20 and the door structure 10 can be improved.

[0073] The hinge reinforcement plate 15 can be hot-pressed or cold-rolled. In specific examples of the present application, the hinge reinforcement plate 15 can be cold-rolled, which can reduce the processing cost.

[0074] For example, the yield strength of the hinge reinforcement plate 15 is 180 MPa or more. For example, the yield strength of the hinge reinforcement plate 15 is 190 MPa, 200 MPa, 210 MPa, 220 MPa, 230 MPa, 250 MPa, 260 MPa, or 280 MPa.

[0075] The material of the hinge reinforcement plate 15 includes but is not limited to high-strength steel and aluminum alloy.

[0076] In some specific examples, the front end of the front reinforcement plate 13 is overlapped and fixed with the hinge reinforcement plate 15. For example, the front end of the front reinforcement plate 13 is overlapped and fixed with the lower hinge reinforcement plate described above.

[0077] Since the hinge reinforcement plate 15 is fixed with the front end of the inner door panel 11, when the front end of the front reinforcement plate 13 overlaps with the hinge reinforcement plate 15, the door structure 10 at this position has at least a three-layer structure formed by the part of the front reinforcement plate 13 overlapping with the hinge reinforcement plate 15, the hinge reinforcement plate 15 and the inner door panel 11, so that on the one hand, the structural strength at this position is higher, which is beneficial to improve the reliability of the connection; on the other hand, the connection of the front reinforcement plate 13, the hinge reinforcement plate 15 and the inner door panel 11 can be realized at the three-layer structure, which is more conducive to simplifying the connection process, reducing the manufacturing cost and improving the assembly efficiency compared with separately connecting any two of the front reinforcement plate 13, the hinge reinforcement plate 15 and the inner door panel 11.

[0078] For example, the part of the front reinforcement plate 13 overlapping with the hinge reinforcement plate 15, the hinge reinforcement plate 15 and the inner door panel 11 are welded together.

[0079] In some specific examples, the front end of the anti-collision beam 12 overlaps and is fixed with the hinge reinforcement plate 15. Since the hinge reinforcement plate 15 is fixed with the front end of the inner door panel 11, when the front end of the anti-collision beam 12 overlaps with the hinge reinforcement plate 15, the door structure 10 at this position has at least a three-layer structure formed by the part of the anti-collision beam 12 overlapping with the hinge reinforcement plate 15, the hinge reinforcement plate 15 and the inner door panel 11, so that on the one hand, the structural strength at this position is higher, which is beneficial to improve the reliability of the connection; on the other hand, the connection of the anti-collision beam 12, the hinge reinforcement plate 15 and the inner door panel 11 can be realized at the three-layer structure, which is more conducive to simplifying the connection process, reducing the manufacturing cost and improving the assembly efficiency compared with separately connecting any two of the anti-collision beam 12, the hinge reinforcement plate 15 and the inner door panel 11.

[0080] For example, the part of the anti-collision beam 12 overlapping with the hinge reinforcement plate 15, the hinge reinforcement plate 15 and the inner door panel 11 are welded together.

[0081] Please continue to refer to Figure 2The front end of the front reinforcing plate 13 and the front end of the front end of the anti-collision beam 12 are spaced apart in the up-down direction, so that the front reinforcing plate 13, the hinge reinforcing plate 15 and the anti-collision beam 12 can jointly enclose a closed area which is approximately triangular. On the one hand, the front reinforcing plate 13 can play a role in reinforcing the front part of the door structure 10; on the other hand, the front reinforcing plate 13 can also play a role in pulling the anti-collision beam 12 and absorbing part of the collision energy when the vehicle 1000 is impacted from the side, thereby reducing the deformation of the anti-collision beam 12. The above two aspects can reduce the degree of deformation of the door structure 10 when the vehicle 1000 is impacted from the side, reduce the amount of intrusion of the door structure 10 into the vehicle body 20, at least to some extent improve the safety of the vehicle 1000, improve the service life of the vehicle 1000, and meet the relevant regulations for safety indicators when the vehicle 1000 is impacted from the side.

[0082] In some embodiments of the present application, the rear end of the front reinforcing plate 13 overlaps and is fixed with the anti-collision beam 12. In this way, it is beneficial to improve the fixation of the front reinforcing plate 13 and the anti-collision beam 12 at the overlapping part, thereby improving the reliability of the connection between the two, and also facilitating the assembly between the two.

[0083] In some embodiments of the present application, please continue to refer to Figure 3 and Figure 4 The rear reinforcing plate 14 is located on the side of the anti-collision beam 12 facing the door inner panel 11, and at least a part of the rear reinforcing plate 14 is located in the reinforcing groove 1121 and connected with the groove bottom wall of the reinforcing groove 1121. In this way, it is beneficial to make full use of the space of the door inner panel 11 and optimize the structural layout.

[0084] It should be noted that at least a part of the rear reinforcing plate 14 is located in the reinforcing groove 1121, which means that the rear reinforcing plate 14 can be located entirely in the reinforcing groove 1121, or partially in the reinforcing groove 1121. It should also be noted that at least a part of the rear reinforcing plate 14 is located in the reinforcing groove 1121, which means that the at least a part of the rear reinforcing plate 14 is located in the area enclosed by the inner peripheral wall of the reinforcing groove 1121. The rear reinforcing plate 14 can extend out of the slot of the reinforcing groove 1121, or it can not extend out, which is not limited.

[0085] In some embodiments of the present application, please refer to Figure 5 and Figure 6The rear reinforcing plate 14 comprises a first flat segment 141, a bent segment 142 and a second flat segment 143 connected in sequence. The first flat segment 141 and the second flat segment 143 are both connected with the anti-collision beam 12. The first flat segment 141 and the bent segment 142 are both located in the reinforcing groove 1121. The bent segment 142 is bent towards the groove bottom wall of the reinforcing groove 1121 and connected with the groove bottom wall of the reinforcing groove 1121. In this way, the rear reinforcing plate 14 has a simple structure, facilitating the connection of the rear reinforcing plate 14 with the door inner panel 11 and the anti-collision beam 12, and the rear reinforcing plate 14 has a curved shape and a relatively high structural strength.

[0086] For example, the connection relationship between the first flat segment 141 and the second flat segment 143 and the anti-collision beam 12 includes but is not limited to welding.

[0087] For example, the connection relationship between the bent segment 142 and the groove bottom wall of the reinforcing groove 1121 includes but is not limited to welding.

[0088] In some embodiments of the present application, the second flat segment 143 is located between the second portion 112 and the anti-collision beam 12 and connected with the second portion 112. In this way, on the one hand, it is beneficial to increase the size of the rear reinforcing plate 14 in the front-rear direction, increase the length of the overlapping area of the rear reinforcing plate 14 and the anti-collision beam 12, and further improve the reinforcing effect of the rear reinforcing plate 14 on the anti-collision beam 12; on the other hand, the door structure 10 at this position has at least a three-layer structure formed by the anti-collision beam 12, the second flat segment 143 and the second portion 112, and the structural strength at this position is higher, which is beneficial to improve the reliability of the connection. In addition, it is also beneficial to realize the connection of the anti-collision beam 12, the rear reinforcing plate 14 and the door inner panel 11 at the three-layer structure, compared with the separate connection between any two of the anti-collision beam 12, the rear reinforcing plate 14 and the door inner panel 11, it is more beneficial to simplify the connection process, reduce the manufacturing cost and improve the assembly efficiency.

[0089] In some embodiments of the present application, the length dimension L1 of the overlapping area of the rear reinforcing plate 14 and the anti-collision beam 12 is greater than or equal to 170 mm. In this way, it is beneficial to improve the reinforcing effect of the rear reinforcing plate 14 on the anti-collision beam 12.

[0090] For example, the length dimension of the overlapping area of the rear reinforcing plate 14 and the anti-collision beam 12 is 175 mm, 180 mm, 185 mm, 190 mm, 195 mm, 200 mm, 205 mm, 210 mm or 220 mm.

[0091] For example, the anti-collision beam 12, the second flat segment 143 and the second portion 112 are welded together.

[0092] On this basis, in order to reduce the cost, the length dimension L1 of the overlapping area of the rear reinforcement plate 14 and the impact beam 12 is less than or equal to 300mm.

[0093] In some embodiments of the present application, the vehicle body assembly 100 further comprises a door lock structure (not shown in the figure). The door lock structure comprises a first lock body and a second lock body. The first lock body is arranged at the rear end of the door structure 10. The second lock body is arranged at the rear edge of the door opening 211. When the door structure 10 closes the door opening 211, the first lock body cooperates with the second lock body.

[0094] Generally, a mechanical key is usually configured in the vehicle 1000. In order to facilitate the user to open the door structure 10 by using the mechanical key, the door lock structure is generally arranged at the middle area of the door structure 10.

[0095] In order to avoid interference between the impact beam 12 and the door lock structure, the impact beam 12 extends downwardly in the front-to-rear direction. In this way, it is beneficial to arrange the impact beam 12 to correspond to the user's waist and the position near the waist in the left-right direction, and it is beneficial to improve the protection reliability of the impact beam 12 to the user's waist and the position near the waist.

[0096] On this basis, in order to facilitate the connection of the front reinforcement plate 13 with the impact beam 12 and the above-mentioned hinge reinforcement plate 15, the front reinforcement plate 13 is arranged below the impact beam 12. In this way, it is also beneficial to arrange the part of the front reinforcement plate 13 connected with the impact beam 12 close to the user's waist and the position near the waist, and it is beneficial to improve the protection reliability to the user's waist and the position near the waist.

[0097] In some embodiments of the present application, when the door structure 10 closes the door opening 211, the rear end (for example, the above-mentioned second flat segment 143) of the rear reinforcement plate 14 overlaps with the rear edge of the door opening 211 in the left-right direction. That is, there is an overlapping amount between the rear end of the rear reinforcement plate 14 and the rear edge of the door opening 211 in the left-right direction. In this way, when the side of the vehicle 1000 is impacted, the rear edge of the door opening 211 can play a reinforcing role to the rear reinforcement plate 14, at this time, the overall buffering and energy absorption effect of the rear reinforcement plate 14 and the rear edge of the door opening 211 is better, and the ability to resist the impact of the barrier is stronger, thereby the deformation degree of the door structure 10 can be reduced, the intrusion amount of the door structure 10 into the vehicle body 20 can be reduced, at least to a certain extent, the safety of the vehicle 1000 when the side of the vehicle 1000 is impacted can be improved, the service life of the vehicle 1000 can be improved, and the relevant regulations on the safety index of the vehicle 1000 when the side of the vehicle 1000 is impacted can be met.

[0098] In some embodiments of the present application, the rear end of the impact beam 12 overlaps with the rear edge of the door opening 211 in the left-right direction when the door structure 10 closes the door opening 211. That is, a portion of the impact beam 12 overlaps with the rear edge of the door opening 211 in the left-right direction when the door structure 10 closes the door opening 211. In this way, when the vehicle 1000 is impacted from the side, the rear edge of the door opening 211 can reinforce the impact beam 12, and the impact beam 12 and the rear edge of the door opening 211 can collectively buffer energy and resist the impact of the barrier, thereby reducing the deformation of the door structure 10, reducing the intrusion of the door structure 10 into the vehicle body 20, at least to some extent improving the safety of the vehicle 1000, improving the service life of the vehicle 1000, and meeting the relevant provisions of the safety index of the vehicle 1000 impacted from the side.

[0099] For example, the rear end of the rear reinforcement plate 14, the rear end of the impact beam 12, and the rear edge of the door opening 211 overlap in the left-right direction when the door structure 10 closes the door opening 211. That is, the three overlap in the left-right direction.

[0100] In some specific examples of the present application, referring to Figure 5 and Figure 6 , the vehicle body 20 includes a side wall inner plate 21 and a B-pillar reinforcement plate 22. The side wall inner plate 21 has a door opening 211.

[0101] The side wall inner plate 21 can be hot stamped or cold formed. In specific examples of the present application, the side wall inner plate 21 can be cold formed, which can reduce processing costs.

[0102] For example, the yield strength of the side wall inner plate 21 is 180 MPa or more. For example, the yield strength of the side wall inner plate 21 is 190 MPa, 200 MPa, 210 MPa, 220 MPa, 230 MPa, 250 MPa, 260 MPa, or 280 MPa.

[0103] The material of the side wall inner plate 21 includes but is not limited to high-strength steel and aluminum alloy.

[0104] The B-pillar reinforcement plate 22 is laminated to the side wall inner plate 21 and located at the rear side of the door opening 211. In this way, the structural strength of the vehicle body 20 can be improved.

[0105] The connection relationship between the B-pillar reinforcement plate 22 and the side wall inner plate 21 includes but is not limited to welding.

[0106] For example, the B-pillar reinforcement plate 22 can be hot stamped. In this way, the B-pillar reinforcement plate 22 has a high yield strength, which can improve the bending resistance of the B-pillar reinforcement plate 22 and thus improve the impact resistance of the B-pillar reinforcement plate 22.

[0107] Exemplarily, the yield strength of the B-pillar reinforcement plate 22 is above 1300 MPa. For example, the yield strength of the B-pillar reinforcement plate 22 is 1350 MPa, 1400 MPa, 1450 MPa, 1500 MPa, 1550 MPa, or 1600 MPa.

[0108] Exemplarily, the material of the B-pillar reinforcement plate 22 includes but is not limited to high-strength steel, glass fiber, and aluminum alloy.

[0109] On this basis, when the door structure 10 closes the door opening 211, the rear end of the bumper beam 12 and the rear end of the rear reinforcement plate 14 are overlapped with the B-pillar reinforcement plate 22 in the left-right direction. In this way, when the vehicle 1000 is side-impacted, the B-pillar reinforcement plate 22 and the side wall inner plate 21 can collectively strengthen the door structure 10, the overall energy absorption is better, the ability to resist the impact of the barrier is stronger, the deformation degree of the door structure 10 is reduced, the intrusion amount of the door structure 10 into the vehicle body 20 is reduced, at least to a certain extent, the safety of the vehicle 1000 is improved, the service life of the vehicle 1000 is improved, and the relevant regulations on the safety index of the vehicle 1000 side-impacted are met.

[0110] On this basis, exemplarily, the vehicle body 20 further includes a rocker reinforcement plate 23. The rocker reinforcement plate 23 is laminated on the side wall inner plate 21 and is located below the door opening 211. The rear end of the rocker reinforcement plate 23 is overlapped and fixed with the lower end of the B-pillar reinforcement plate 22. In this way, it is beneficial to improve the overall structural strength of the vehicle body 20.

[0111] The connection relationship between the rocker reinforcement plate 23 and the side wall inner plate 21 includes but is not limited to welding. The connection relationship between the rocker reinforcement plate 23 and the B-pillar reinforcement plate 22 includes but is not limited to welding.

[0112] The rocker reinforcement plate 23 can be hot-pressed or cold-rolled. In the specific examples of the present application, the rocker reinforcement plate 23 can be cold-rolled, which can reduce the processing cost.

[0113] Exemplarily, the yield strength of the rocker reinforcement plate 23 is above 180 MPa. For example, the yield strength of the rocker reinforcement plate 23 is 190 MPa, 200 MPa, 210 MPa, 220 MPa, 230 MPa, 250 MPa, 260 MPa, or 280 MPa.

[0114] The material of the rocker reinforcement plate 23 includes but is not limited to high-strength steel and aluminum alloy.

[0115] On this basis, exemplary, when the door structure 10 closes the door opening 211, the rear end of the anti-collision beam 12, the rear end of the rear reinforcement plate 14 and the lap joint of the B-pillar reinforcement plate 22 and the rocker reinforcement plate 23 overlap in the left-right direction. In this way, when the vehicle 1000 is side-impacted, the lap joint of the B-pillar reinforcement plate 22 and the rocker reinforcement plate 23 and the side wall inner plate 21 as a whole can strengthen the anti-collision beam 12, at this time, the overall buffering and energy absorption effect is better, the ability to resist the impact of the barrier is stronger, the deformation degree of the door structure 10 is reduced, the intrusion amount of the door structure 10 into the vehicle body 20 is reduced, at least to a certain extent, the safety of the vehicle 1000 is improved, the service life of the vehicle 1000 is improved, and the relevant regulations of the safety index of the vehicle 1000 side-impacted are met.

[0116] In some embodiments of the present application, please refer to Figure 6 When the door structure 10 closes the door opening 211, the overlapping length L2 of the anti-collision beam 12 and the B-pillar reinforcement plate 22 is greater than or equal to 60mm. In this way, when the vehicle 1000 is side-impacted, it is beneficial to improve the strengthening effect of the B-pillar reinforcement plate 22 on the anti-collision beam 12, the overall buffering and energy absorption effect is better, the ability to resist the impact of the barrier is stronger, the deformation degree of the door structure 10 is reduced, the intrusion amount of the door structure 10 into the vehicle body 20 is reduced, at least to a certain extent, the safety of the vehicle 1000 is improved, the service life of the vehicle 1000 is improved, and the relevant regulations of the safety index of the vehicle 1000 side-impacted are met.

[0117] Exemplary, when the door structure 10 closes the door opening 211, the overlapping length L2 of the anti-collision beam 12 and the B-pillar reinforcement plate 22 is 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 120mm, 130mm or 140mm.

[0118] On this basis, in order to reduce the cost, when the door structure 10 closes the door opening 211, the overlapping length L2 of the anti-collision beam 12 and the B-pillar reinforcement plate 22 is less than or equal to 300mm.

[0119] In some embodiments of the present application, the overlapping length L3 of the rear reinforcement plate 14 and the B-pillar reinforcement plate 22 is greater than or equal to 20 mm when the door structure 10 closes the door opening 211. In this way, when the vehicle 1000 is subjected to a side impact, the B-pillar reinforcement plate 22 and the side wall inner panel 21 as a whole can improve the reinforcement effect of the rear reinforcement plate 14, the energy absorption effect is better, the ability to resist the impact of the barrier is stronger, the deformation degree of the door structure 10 can be reduced, the intrusion amount of the door structure 10 into the vehicle body 20 can be reduced, the safety of the vehicle 1000 can be improved at least to a certain extent, the service life of the vehicle 1000 can be improved, and the relevant regulations for the safety index of the vehicle 1000 subjected to a side impact can be met.

[0120] For example, the overlapping length L3 of the rear reinforcement plate 14 and the B-pillar reinforcement plate 22 is 25 mm, 30 mm, 35 mm, 40 mm, 55 mm, 50 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 100 mm or 110 mm when the door structure 10 closes the door opening 211.

[0121] On this basis, in order to reduce the cost, the overlapping length L3 of the rear reinforcement plate 14 and the B-pillar reinforcement plate 22 is less than or equal to 200 mm when the door structure 10 closes the door opening 211.

[0122] In the description of the present application, the specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner without contradicting each other.

[0123] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle door structure characterized by comprising: The vehicle door structure comprises: a door inner panel; a front reinforcement plate, a rear end of the front reinforcement plate being connected to a front portion of the bumper beam, a front end of the front reinforcement plate being connected to a front end of the outer side surface of the door inner panel; a rear reinforcement plate, the rear reinforcement plate being located at a rear side of the front reinforcement plate and being connected between a rear portion of the bumper beam and the door inner panel. The vehicle door structure further comprises a hinge reinforcement plate, the hinge reinforcement plate being provided at the front end of the outer side surface of the door inner panel; 2. The vehicle door structure according to claim 1, characterized by the front end of the front reinforcement plate is overlapped and fixed with the hinge reinforcement plate, the front end of the bumper beam is overlapped and fixed with the hinge reinforcement plate, and the front end of the front reinforcement plate is spaced apart from the front end of the bumper beam in the up-down direction. the rear end of the front reinforcement plate is overlapped and fixed with the bumper beam.

3. The vehicle door structure according to claim 1, characterized by The door inner panel comprises a first portion and a second portion, the first portion being recessed towards the inside of the vehicle to form a reinforcement groove, and the second portion being connected to the outer periphery of the first portion; 4. The vehicle door structure according to claim 1, characterized by the bumper beam spans the reinforcement groove in the front-rear direction and is fixed with the second portion. The rear reinforcement plate is located at a side of the bumper beam facing the door inner panel, and at least a portion of the rear reinforcement plate is located in the reinforcement groove and is connected to a groove bottom wall of the reinforcement groove.

5. The vehicle door structure according to claim 4, characterized by The rear reinforcement plate comprises a first flat segment, a bent segment and a second flat segment connected in sequence; wherein the first flat segment and the second flat segment are both connected to the bumper beam, the first flat segment and the bent segment are both located in the reinforcement groove, and the bent segment is bent towards the groove bottom wall of the reinforcement groove and is connected to the groove bottom wall.

6. The vehicle door structure according to claim 5, characterized by The second flat segment is located between the second portion and the bumper beam and is connected to the second portion.

7. The vehicle door structure according to claim 6, characterized by The rear reinforcement plate is located at a side of the bumper beam facing the door inner panel, and the length of the overlapping area of the rear reinforcement plate and the bumper beam is greater than or equal to 170 mm; and / or, 8. The vehicle door structure according to any one of claims 1-7, characterized in that, In the front-rear direction, the bumper beam extends downwardly and is inclined downwardly; and the front reinforcement plate is located below the bumper beam. The vehicle door structure comprises:

9. A vehicle body assembly characterized by, a vehicle body having a door opening; the vehicle door structure according to any one of claims 1-8 is hingedly connected to the vehicle body to open or close the door opening. When the vehicle door structure closes the door opening, a rear end of the rear reinforcement plate overlaps a rear edge of the door opening in the left-right direction, and a rear end of the bumper beam overlaps the rear edge of the door opening in the left-right direction.

10. The vehicle body assembly of claim 9, wherein, The vehicle body comprises a side wall inner panel having the door opening and a B-pillar reinforcement plate which is laminated to the side wall inner panel and is located at a rear side of the door opening; 11. The vehicle body assembly of claim 10, wherein, When the vehicle door structure closes the door opening, the rear end of the bumper beam and the rear end of the rear reinforcement plate both overlap the B-pillar reinforcement plate in the left-right direction. When the vehicle door structure closes the door opening, the overlapping length between the bumper beam and the B-pillar reinforcement plate is greater than or equal to 60 mm; and / or, 12. The vehicle body assembly of claim 11, wherein, ​ An overlapping length between the rear reinforcement plate and the B-pillar reinforcement plate is greater than or equal to 20 mm when the door structure closes the door opening.

13. A vehicle characterized by comprising: A vehicle body assembly comprising the vehicle body assembly according to any one of claims 1 to 12.

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