Vehicle body and vehicle

By designing a closed cavity in the vehicle body and setting up partitions and pipe structures, and using carbon dioxide gas shielded welding technology, the problem of insufficient structural strength at the rear of the vehicle was solved, thereby improving the vehicle's rigidity and safety performance.

CN223672617UActive Publication Date: 2025-12-16SAIC GM WULING AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202520087295.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-12-16
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

The structural strength of the rear area of ​​the car is too weak to meet the requirements of high-performance vehicles.

Method used

The vehicle body is designed with a closed cavity containing partitions and tubular structures. Welding enhances the rigidity and torsional resistance of the vehicle body, while carbon dioxide gas shielded welding improves the reliability and stability of the connections.

Benefits of technology

It improves the rigidity, structural stability, and safety performance of the vehicle body, enhances the vehicle's resistance to deformation, and meets the safety requirements of high-performance vehicles.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223672617U_ABST
    Figure CN223672617U_ABST
Patent Text Reader

Abstract

The utility model relates to a vehicle body and a vehicle, the vehicle body comprises a D column reinforcing plate, a D column inner plate, a first pipe and a partition plate, the D column reinforcing plate and the D column inner plate are welded and define a first cavity, the first pipe is located in the first cavity, the partition plate is located in the first cavity and installed on the outer wall of the first pipe, and the D column reinforcing plate and the D column inner plate are welded to form a second cavity. And the partition plate is welded with the D column reinforcing plate and the D column inner plate. The partition plate and the first pipe are arranged in the first cavity, so that the rigidity and the torsion resistance of the first cavity are improved, the rigidity, the structural stability and the collision resistance of the vehicle body are improved, and the safety performance of the vehicle body is greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, especially a vehicle body and vehicle. BACKGROUND

[0002] With the rapid development of the automobile industry, customers gradually improve the performance and safety requirements of vehicles while considering appearance, cost performance. Among them, the torsional mode and stiffness of the body-in-white are one of the important factors affecting the performance of the whole vehicle. The tail area of the automobile on the market is usually equipped with tail doors, interior and exterior trim parts, etc. The local stiffness of the automobile tail area is reduced, causing the problem of weak structure strength of the automobile tail area, which does not meet the requirements of high-performance vehicles. SUMMARY

[0003] The application provides a vehicle body and vehicle to solve the problem of weak structure strength of the automobile tail area, which does not meet the requirements of high-performance vehicles.

[0004] The first aspect of the application provides a vehicle body, which comprises a D-pillar reinforcing plate, a D-pillar inner plate, a first pipe and a partition plate, the D-pillar reinforcing plate and the D-pillar inner plate are welded to form a first cavity, the first pipe is located in the first cavity, the partition plate is located in the first cavity and is installed on the outer wall of the first pipe, and the partition plate is welded to the D-pillar reinforcing plate and the D-pillar inner plate.

[0005] In this scheme, the partition plate and the first pipe are arranged in the first cavity to improve the stiffness and torsional resistance of the first cavity, thereby improving the stiffness, structural stability and crashworthiness of the vehicle body, and greatly improving the safety performance of the vehicle body. At the same time, the first cavity is a closed cavity, and the partition plate and the first pipe are arranged in the first cavity. As known from the cross-sectional stiffness, the better the cross-sectional stiffness of the closed cavity cross-section, the longer the cross-sectional length, the better the stiffness, so that the first cavity has good stiffness, and the stiffness and deformation resistance of the vehicle are further improved.

[0006] In this scheme, the first pipe comprises a plurality of arc-shaped segments, so that the first pipe has a curved structure.

[0007] In this scheme, the vehicle body further comprises a second pipe, a roof and a roof rear beam inner plate, the roof and the roof rear beam inner plate form a second cavity, and the second pipe is installed in the second cavity.

[0008] In this scheme, the vehicle body further comprises a roof hinge reinforcing plate, the second pipe and the roof hinge reinforcing plate are welded by carbon dioxide gas shielded welding, so that the second pipe is connected with the roof and the roof rear beam inner plate through the roof hinge reinforcing plate.

[0009] In this scheme, the second pipe has a straight structure.

[0010] In this scheme, the vehicle body further comprises a lock buckle mounting plate, a tail end plate inner plate and a tail end plate outer plate, the lock buckle mounting plate comprises a body and a reinforcing plate protruding relative to the body, and the reinforcing plate is used for welding with the tail end plate inner plate and the tail end plate outer plate.

[0011] In this scheme, the vehicle body further comprises a D column lower foot plate, and the tail end plate inner plate and the D column lower foot plate are welded by means of carbon dioxide gas shielded welding.

[0012] In this scheme, the vehicle body further comprises a tail door hinge reinforcing plate and a D column upper reinforcing plate, and the tail door hinge reinforcing plate and the D column upper reinforcing plate are welded by means of carbon dioxide gas shielded welding.

[0013] In this scheme, the vehicle body further comprises a tail door opening, and the tail door opening is trapezoidal in outline.

[0014] The second aspect of the present application provides a vehicle, which comprises a vehicle body and a power assembly, and the vehicle body and the power assembly are fixedly connected. Wherein, the vehicle body is the vehicle body described above.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structural schematic diagram of the vehicle body provided by the present application in a specific embodiment is shown in the figure;

[0017] Figure 2 The exploded view of the D area in the figure; Figure 1

[0018] Figure 3 The sectional view of the A-A position in the figure; Figure 1

[0019] Figure 4 The structural schematic diagram of the vehicle body provided by the present application in a specific embodiment is shown in the figure;

[0020] Figure 5 The structural schematic diagram of the roof rear beam area of the vehicle body provided by the present application in a specific embodiment is shown in the figure;

[0021] Figure 6 The sectional view of the B-B position in the figure; Figure 4

[0022] Figure 7 The sectional view of the C-C position in the figure; Figure 4

[0023] Figure 8 The structural schematic diagram of the roof area of the vehicle body provided by the present application in a specific embodiment is shown in the figure;​​​​

[0024] Figure 9 For Figure 8 Cross-sectional view of the E-E position;

[0025] Figure 10 For the structure of the lock mounting plate provided in the present application in a specific embodiment;

[0026] Figure 11 For the structure of the tail end plate inner plate and D column lower foot plate welding provided in the present application;

[0027] Figure 12 For the structure of the tail gate hinge reinforcement plate and D column upper reinforcement plate welding provided in the present application;

[0028] Figure 13 For the structure of the tail gate opening provided in the present application.

[0029] BRIEF DESCRIPTION OF DRAWINGS:

[0030] 1 - vehicle body;

[0031] 11 - first cavity;

[0032] 111 - D column reinforcement plate;

[0033] 112 - D column inner plate;

[0034] 113 - first pipe;

[0035] 114 - partition plate;

[0036] 115 - side outer plate;

[0037] 12 - second cavity;

[0038] 121 - roof;

[0039] 122 - roof rear beam inner plate;

[0040] 123 - second pipe;

[0041] 124 - roof hinge reinforcement plate;

[0042] 13 - lock mounting plate;

[0043] 131 - body;

[0044] 132 - reinforcement plate;

[0045] 14 - tail end plate inner plate;

[0046] 15 - tail end plate outer plate;

[0047] 16 - D column lower foot plate;

[0048] 161 - first position;

[0049] 17 - tailgate hinge reinforcement plate;

[0050] 18 - D-pillar upper reinforcement plate;

[0051] 181 - second position;

[0052] 19 - tailgate opening.

[0053] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application. DETAILED DESCRIPTION

[0054] For a better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0055] In a specific embodiment, the present application is described in further detail below by specific embodiments and in conjunction with the drawings.

[0056] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0057] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0058] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0059] It should be noted that the "up", "down", "left", "right" and other directional words described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element connected to another element "on" or "below", it can not only be directly connected to another element "on" or "below", but also indirectly connected to another element "on" or "below" through an intermediate element.

[0060] The embodiments of the present application provide a vehicle body 1, such asFigures 1-3 As shown, the vehicle body 1 includes a D-pillar reinforcing plate 111, a D-pillar inner plate 112, a first tube 113, and a partition 114. The D-pillar reinforcing plate 111 and the D-pillar inner plate 112 are welded together to form a first cavity 11. The first tube 113 is located inside the first cavity 11. The partition 114 is located inside the first cavity 11 and is installed on the outer wall of the first tube 113. The partition 114 is welded to the D-pillar reinforcing plate 111 and the D-pillar inner plate 112.

[0061] Specifically, the vehicle body 1 also includes a side outer panel 115 and a D-pillar assembly. The D-pillar assembly includes a D-pillar reinforcing plate 111, a D-pillar inner panel 112, a first tube 113, and a partition 114. The side outer panel 115 is welded to the D-pillar reinforcing plate 111. The D-pillar reinforcing plate 111 is located between the side outer panel 115 and the D-pillar inner panel 112. The D-pillar reinforcing plate 111 and the D-pillar inner panel 112 are welded together to form a closed first cavity 11. A plurality of partitions 114 are provided in the first cavity 11. The plurality of partitions 114 are welded to the outer wall of the first tube 113 by carbon dioxide gas shielded welding. The partitions 114 are welded to the D-pillar reinforcing plate 111 and the D-pillar inner panel 112 by plug welding or spot welding, so that the first tube 113 is fixed in the first cavity 11 by the partitions 114.

[0062] Therefore, a partition 114 and a first tube 113 are provided inside the first cavity 11 to improve the rigidity and torsional resistance of the first cavity 11, thereby improving the torsional resistance of the D-pillar assembly, and further improving the rigidity, structural stability, and crashworthiness of the vehicle body 1, thus greatly improving the safety performance of the vehicle body 1. At the same time, the first cavity 11 is a closed cavity, and the partition 114 and the first tube 113 are provided inside it. As can be seen from the cross-sectional stiffness, the better the cross-sectional stiffness of a closed cavity, and the longer the cross-sectional line length, the better the stiffness. This ensures that the first cavity 11 has good rigidity, thereby improving the rigidity of the D-pillar assembly and further improving the rigidity and deformation resistance of the vehicle.

[0063] Among them, the D-pillar reinforcement plate 111 is an integrally formed structure, which is conducive to improving the rigidity of the D-pillar reinforcement plate 111 and further improving the rigidity of the vehicle body 1.

[0064] In one possible implementation, such as Figure 2 As shown, the first tube 113 includes multiple arc-shaped segments to give the first tube 113 a curved structure.

[0065] In this embodiment, the bending direction and bending radius of the first pipe 113 are substantially the same as the bending direction and bending radius of the D-pillar reinforcement plate 111 and the D-pillar inner plate 112, so that the first pipe 113 can be completely located in the first cavity 11, and the rigidity of the first cavity 11 is further improved. Meanwhile, a plurality of partition plates 114 are arranged in the first pipe 113, so as to improve the reliability and stability of the welding of the first pipe 113, the D-pillar reinforcement plate 111 and the D-pillar inner plate 112 through the partition plates 114, and the structural stability of the D-pillar assembly is further improved, and the structural stability and rigidity of the vehicle body 1 are further improved.

[0066] In a possible implementation, as shown in Figure 2 The plurality of partition plates 114 can be arranged at each bending position of the first pipe 113, which is beneficial to improve the rigidity and deformation resistance of the first pipe 113.

[0067] In a possible implementation, as shown in Figures 4-7 The vehicle body 1 further comprises a second pipe 123, a roof 121 and a roof rear beam inner plate 122, the roof 121 and the roof rear beam inner plate 122 enclose a second cavity 12, and the second pipe 123 is installed in the second cavity 12.

[0068] In this embodiment, the second pipe 123 is arranged in the second cavity 12, so as to improve the bending deformation resistance of the second cavity 12, and the rigidity and deformation resistance of the roof rear beam are improved, and the structural stability and rigidity of the vehicle body 1 are improved.

[0069] In a possible implementation, as shown in Figure 7 The vehicle body 1 further comprises a roof hinge reinforcement plate 124, and the second pipe 123 and the roof hinge reinforcement plate 124 are welded by carbon dioxide gas shielded welding, so that the second pipe 123 is connected with the roof 121 and the roof rear beam inner plate 122 through the roof hinge reinforcement plate 124.

[0070] In this embodiment, the roof hinge reinforcement plate 124 is fixedly connected with the roof 121 and the roof rear beam inner plate 122, and the second pipe 123 and the roof hinge reinforcement plate 124 are welded by carbon dioxide gas shielded welding, which is beneficial to improve the firmness of the installation of the second pipe 123 in the second cavity 12. Meanwhile, the welding efficiency of carbon dioxide gas shielded welding is high, and the welding cost is low.

[0071] In a possible implementation, as shown in Figure 5 The second pipe is a straight structure.

[0072] In this embodiment, the second tube 123 is in a flat structure, i.e., the length direction of the second tube 123 can be perpendicular to the length direction of the vehicle body 1, so as to improve the anti-deformation performance of the second tube 123 along the length direction of the vehicle body 1, and further improve the anti-bending deformation capability of the second cavity 12 along the length direction of the vehicle body 1, and further improve the rigidity and anti-deformation capability at the roof rear beam, so as to improve the structural stability and rigidity of the vehicle body 1, and improve the safety requirement when the tail part of the vehicle body 1 is collided.

[0073] In a possible implementation, as shown in Figures 8-10 The vehicle body 1 further includes a lock buckle mounting plate 13, a tail end inner plate 14, and a tail end outer plate 15. The lock buckle mounting plate 13 includes a body 131 and a reinforcing plate 132 protruding relative to the body 131, and the reinforcing plate 132 is used for being welded with the tail end inner plate 14 and the tail end outer plate 15.

[0074] Compared with the traditional lock buckle mounting plate, in this embodiment, the lock buckle mounting plate 13 is provided with the reinforcing plate 132 protruding relative to the body 131, so as to improve the reliability and stability of the fixed connection of the lock buckle mounting plate 13 with the tail end inner plate 14 and the tail end outer plate 15, thereby improving the structural rigidity and reducing the risk of deformation due to collision. Meanwhile, the body 131 and the reinforcing plate 132 are in an integrated structure, thereby improving the rigidity of the lock buckle mounting plate 13, effectively inhibiting the risk of deformation of the tail part of the vehicle body 1, and improving the safety.

[0075] In a possible implementation, as shown in Figure 11 The vehicle body 1 further includes a D-pillar lower plate 16 (i.e., a lower region of the D-pillar inner plate 112), and the tail end inner plate 14 is welded with the D-pillar lower plate 16 by means of carbon dioxide gas shielded welding.

[0076] Compared with the traditional tail end inner plate and D-pillar lower plate welded by means of spot welding, in this embodiment, the tail end inner plate 14 is welded with the D-pillar lower plate 16 at a first position 161 by means of carbon dioxide gas shielded welding, without the need of setting a welding through hole on the tail end inner plate 14 and the D-pillar lower plate 16, thereby avoiding the risk that the local rigidity is weakened due to the welding through hole being too large, or the welding point arrangement is affected due to the welding through hole being too small, so that the tail end inner plate 14 and the D-pillar lower plate 16 still have good rigidity, and meanwhile, the stability and reliability of the connection of the tail end inner plate 14 and the D-pillar lower plate 16 are improved, thereby improving the structural stability and rigidity of the D-pillar lower joint region.

[0077] In a possible implementation, as shown in Figure 12 The vehicle body 1 further includes a tail door hinge reinforcing plate 17 and a D-pillar upper reinforcing plate 18, and the tail door hinge reinforcing plate 17 and the D-pillar upper reinforcing plate 18 are welded by means of carbon dioxide gas shielded welding.

[0078] Compared with the traditional tailgate hinge reinforcing plate and the D-pillar upper reinforcing plate welded by spot welding, in the embodiment, the tailgate hinge reinforcing plate 17 and the D-pillar upper reinforcing plate 18 are welded by carbon dioxide gas shielded welding at the second position 181, without the need to set a welding through hole on the tailgate hinge reinforcing plate 17 and the D-pillar upper reinforcing plate 18, thereby avoiding the risk of weakening the local stiffness due to the welding through hole being too large or affecting the welding point arrangement due to the welding through hole being too small, so that the tailgate hinge reinforcing plate 17 and the D-pillar upper reinforcing plate 18 still have good stiffness, and at the same time, the stability and reliability of the connection of the tailgate hinge reinforcing plate 17 and the D-pillar upper reinforcing plate 18 are improved, thereby improving the structural stability and stiffness of the D-pillar upper joint area.

[0079] In a possible implementation, as shown in Figure 13 The vehicle body 1 further includes a tailgate opening 19, and the contour of the tailgate opening 19 is trapezoidal.

[0080] Compared with the rectangular tailgate opening of the traditional vehicle body, in the embodiment, the contour of the tailgate opening 19 is designed to be trapezoidal, and it can be known from geometry that the stability of the trapezoidal shape is better than that of the rectangular shape, thereby improving the stiffness of the tailgate opening 19, and further improving the stiffness and structural stability of the tail end of the vehicle body 1, thereby improving the crashworthiness of the tail end of the vehicle body 1 and meeting the safety requirements.

[0081] The embodiment of the present application further provides a vehicle, as shown in Figure 1 The vehicle includes a vehicle body 1 and a power assembly, and the vehicle body 1 and the power assembly are fixedly connected. The vehicle body 1 is the vehicle body 1 in any of the above embodiments.

[0082] When the vehicle body 1 is used in a vehicle, the first cavity 11 in the vehicle body 1 is provided with a partition plate 114 and a first pipe 113 to improve the stiffness and torsional resistance of the first cavity 11, thereby improving the stiffness, structural stability and crashworthiness of the vehicle body 1, greatly improving the safety performance of the vehicle body 1, and thereby improving the safety performance of the vehicle.

[0083] The above merely provides a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any change or replacement within the technical scope disclosed in the embodiment of the present application should be covered in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be subject to the protection scope of the claims.

Claims

1. A vehicle body, characterized in that, The vehicle body includes: D-pillar reinforcement plate; The inner panel of the D-pillar, wherein the reinforcing plate of the D-pillar is welded to the inner panel of the D-pillar and forms a first cavity; The first tube is located within the first cavity; A partition is located inside the first cavity and installed on the outer wall of the first tube, and the partition is welded to the D-pillar reinforcing plate and the D-pillar inner plate.

2. The vehicle body according to claim 1, characterized in that, The first tube includes multiple arc-shaped segments to give the first tube a curved structure.

3. The vehicle body according to claim 1, characterized in that, The vehicle body also includes a second pipe, a top cover, and a rear beam inner plate of the top cover. The top cover and the rear beam inner plate of the top cover form a second cavity, and the second pipe is installed in the second cavity.

4. The vehicle body according to claim 3, characterized in that, The vehicle body also includes a roof hinge reinforcement plate. The second tube is welded to the roof hinge reinforcement plate by carbon dioxide gas shielded welding, so that the second tube is connected to the roof and the inner plate of the roof rear beam via the roof hinge reinforcement plate.

5. The vehicle body according to claim 3, characterized in that, The second tube has a straight structure.

6. The vehicle body according to claim 1, characterized in that, The vehicle body also includes a latch mounting plate, an inner rear end plate, and an outer rear end plate. The latch mounting plate includes a body and a reinforcing plate protruding relative to the body. The reinforcing plate is used to weld to the inner rear end plate and the outer rear end plate.

7. The vehicle body according to claim 6, characterized in that, The vehicle body also includes a D-pillar lower plate, and the inner plate of the rear end plate is welded to the D-pillar lower plate by carbon dioxide gas shielded welding.

8. The vehicle body according to any one of claims 1-7, characterized in that, The vehicle body also includes a tailgate hinge reinforcement plate and a D-pillar reinforcement plate, which are welded by carbon dioxide gas shielded welding.

9. The vehicle body according to any one of claims 1-7, characterized in that, The vehicle body also includes a tailgate opening, the tailgate opening having a trapezoidal outline.

10. A vehicle, characterized in that, The vehicle includes a vehicle body and a powertrain, and the vehicle body and the powertrain are fixedly connected. The vehicle body is the vehicle body according to any one of claims 1-9.