Vehicle body and vehicle

Abstract

The utility model relates to a vehicle body and a vehicle, the vehicle body comprises a supporting piece, a back plate lower cross beam, a B column lower inner plate, a girder assembly and a safety belt mounting plate, the safety belt mounting plate is fixed to the back plate lower cross beam, and the B column lower inner plate is welded to the safety belt mounting plate and the back plate lower cross beam to define a first cavity. In the first direction, one side of the supporting piece is welded to the back plate lower cross beam, and the other side of the supporting piece is welded to the girder assembly, so that the back plate lower cross beam is supported on the girder assembly. The vehicle body is provided with the supporting piece and the first cavity, the structural stability and rigidity of the rear back plate lower cross beam can be improved, the risk of deformation of the rear back plate lower cross beam can be reduced, the structural strength and deformation resistance of a cross beam lower connector area can be improved, and therefore the structural stability and bending torsion resistance of the vehicle body can be improved; the safety of the vehicle body is improved.

Description

TECHNICAL FIELD

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

[0002] The traditional single row truck crossbeam lower joint area, single row truck generally includes front girder, backplate lower crossbeam and a plurality of support plates, a plurality of support plates are used for supporting backplate lower crossbeam on front girder, but in the actual production manufacturing process, the welding process of a plurality of support plates and front girder and backplate lower crossbeam is difficult to cause virtual welding, welding and affect the stability of crossbeam whole, cause the risk of deformation of truck crossbeam lower joint area, reduce the safety performance of vehicle body. SUMMARY

[0003] The application provides a vehicle body and vehicle, which is used to solve the problem of the risk of deformation of the truck crossbeam lower joint area and the reduction of the safety performance of the vehicle body.

[0004] The first aspect of the application provides a vehicle body, which comprises a support piece, a backplate lower crossbeam, a B column lower inner plate, a girder assembly and a safety belt mounting plate, the safety belt mounting plate is fixed on the backplate lower crossbeam, and the B column lower inner plate is welded with the safety belt mounting plate and the backplate lower crossbeam to form a first cavity.

[0005] In the first direction, one side of the support piece is welded with the backplate lower crossbeam, and the other side is welded with the girder assembly, so that the backplate lower crossbeam is supported on the girder assembly.

[0006] In the scheme, the vehicle body is provided with the above support piece and the above first cavity, which can improve the structural stability and rigidity of the backplate lower crossbeam, reduce the risk of deformation of the backplate lower crossbeam, and improve the structural strength and deformation resistance of the crossbeam lower joint area, thereby improving the structural stability and bending and torsional resistance of the vehicle body, and improving the safety of the vehicle body.

[0007] In the scheme, the support piece comprises a body, a first welding edge and a second welding edge, the first welding edge extends in the first direction relative to the body, and the second welding edge extends in the second direction relative to the body.

[0008] In the scheme, the body is provided with the first welding edge on both sides in the third direction, and the body is provided with the second welding edge on both sides in the second direction.

[0009] In the scheme, in the third direction, the first welding edge is inclined relative to the body, and the first welding edge and the body have an included angle a between them, which satisfies 100°≤a≤130°.

[0010] In this scheme, the first welding edge and the second welding edge have a gap therebetween.

[0011] In this scheme, the vehicle body further comprises a seat frame, the seat frame being welded with the back plate lower cross beam, so that the seat frame, the back plate lower cross beam and the B column lower inner plate enclose a closed ring structure.

[0012] In this scheme, the vehicle body further comprises a rear support cross beam welded with the back plate lower cross beam, the outer contour of the rear support cross beam being in U shape.

[0013] In this scheme, the girder assembly comprises a front girder and a girder upper cover plate, the front girder being welded with the girder upper cover plate, and the rear support cross beam being welded with the front girder and the girder upper cover plate.

[0014] The second aspect of the present application provides a vehicle, the vehicle body being the vehicle body described above.

[0015] In this scheme, the vehicle comprises a back plate, the vehicle body comprises a rear support cross beam, and the back plate is welded with the rear support cross beam and the back plate lower cross beam.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure schematic diagram of the vehicle body provided by the present application in one specific embodiment;

[0018] Figure 2 Structure schematic diagram of the vehicle body provided by the present application in one specific embodiment from another perspective;

[0019] Figure 3 Structure schematic diagram of the vehicle body provided by the present application in one specific embodiment;

[0020] Figure 4 Structure schematic diagram of the vehicle body provided by the present application in one specific embodiment from another perspective;

[0021] Figure 5 Structure schematic diagram of the vehicle body provided by the present application in one specific embodiment from another perspective;

[0022] Figure 6 Structure schematic diagram of the vehicle body provided by the present application in one specific embodiment from another perspective;

[0023] Figure 7 Structure schematic diagram of the vehicle body provided by the present application in one specific embodiment;

[0024] Figure 8 Structure diagram of connection between seat frame, rear back plate lower cross beam and B-pillar lower inner plate provided by the present application;

[0025] Figure 9 Structure diagram of connection between rear support cross beam and rear back plate provided by the present application.

[0026] Explanation of reference signs:

[0027] 1 - vehicle body;

[0028] 11 - support piece;

[0029] 111 - body;

[0030] 112 - first welding edge;

[0031] 113 - second welding edge;

[0032] 114 - notch;

[0033] 115 - reinforcing portion;

[0034] 12 - first cavity;

[0035] 121 - B-pillar lower inner plate;

[0036] 122 - safety belt mounting plate;

[0037] 123 - rear back plate lower cross beam;

[0038] 13 - girder cover plate;

[0039] 14 - seat frame;

[0040] 15 - rear support cross beam;

[0041] 16 - front girder;

[0042] 17 - upper girder cover plate;

[0043] 18 - lower support plate;

[0044] 2 - vehicle;

[0045] 21 - rear back plate;

[0046] 22 - cargo box mounting plate;

[0047] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application together with the specification. DETAILED DESCRIPTION

[0048] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below in combination with the drawings.

[0049] In one embodiment, the application will be further described in detail by specific embodiments and in conjunction with the drawings.

[0050] It should be noted that the embodiments described are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0051] 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.

[0052] 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 in an "or" relationship.

[0053] 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 a limitation on 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 "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element.

[0054] The embodiments of the present application provide a vehicle body 1, as shown in the drawings, which comprises a support 11, a rear back plate lower cross beam 123, a B column lower inner plate 121, a girder assembly and a seat belt mounting plate 122, the seat belt mounting plate 122 is fixed on the rear back plate lower cross beam 123, and the B column lower inner plate 121 is welded with the seat belt mounting plate 122 and the rear back plate lower cross beam 123 to enclose a first cavity 12. The girder assembly comprises a front girder 16, a girder upper cover plate 17 and a girder cover plate 13, and the girder upper cover plate 17 and the girder cover plate 13 are fixed on the side of the front girder 16 facing the support 11. Figures 1-4 In the first direction X, one side of the support 11 is welded with the rear back plate lower cross beam 123, and the other side is welded with the girder cover plate 13 and the girder upper cover plate 17, so that the rear back plate lower cross beam 123 is supported on the front girder 16 through the support 11.

[0055]

[0056] ​It should be noted that the first direction, the second direction and the third direction mentioned in the present document can refer to the height direction, the width direction and the length direction of the vehicle body 1 respectively. Figure 4 In one specific embodiment, the first direction X can be the height direction of the vehicle body 1, the second direction Y can be the width direction of the vehicle body 1, and the third direction Z can be the length direction of the vehicle body 1. Therefore, the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0057] Specifically, the support member 11 is configured to support the rear back lower cross beam 123 on the girder cover plate 13 and the girder upper cover plate 17, and further support the rear back lower cross beam 123 on the front girder 16, so as to support the rear back lower cross beam 123, thereby meeting the structural requirements of the vehicle body 1. Compared with the conventional vehicle body in which the rear back lower cross beam 123 is supported by multiple support plates, in the embodiment, the support member 11 is an integrally formed structure, which is beneficial to reduce the number of parts of the vehicle body 1, thereby reducing the part lap joint, so as to be beneficial to reduce the mold tooling cost and the welding cost of multiple parts, while being beneficial to reduce the space around the front girder 16, improve the convenience of arranging the pipeline and wire harness, and be beneficial to increase the welding process space, reduce the welding manufacturing difficulty, improve the production efficiency, and reduce the production cost. In addition, the support member 11 is an integrally formed structure, which is also beneficial to improve the rigidity and structural strength of the support member 11, reduce the risk of deformation and cracking of the support member 11, and further be beneficial to improve the stability and reliability of the support rear back lower cross beam 123, and reduce the risk of deformation of the rear back lower cross beam 123.

[0058] In addition, in the embodiment, the safety belt mounting plate 122 can be fixed to the rear back lower cross beam 123 by welding, and the B-pillar lower inner plate 121 is welded with the safety belt mounting plate 122 and the rear back lower cross beam 123 to form a closed first cavity 12, which is beneficial to improve the connection strength of the B-pillar lower inner plate 121, the safety belt mounting plate 122 and the rear back lower cross beam 123, and further be beneficial to improve the structural strength and deformation resistance of the cross beam lower joint area. The first cavity 12 formed at the same time is beneficial to force transmission, thereby increasing the force transmission path of the frontal collision and the side collision, and thereby being beneficial to improve the structural stability and bending and torsional resistance of the vehicle body 1.

[0059] In summary, the vehicle body 1 is provided with the above-mentioned support member 11 and the above-mentioned first cavity 12, which can improve the structural stability and rigidity of the rear back lower cross beam 123, reduce the risk of deformation of the rear back lower cross beam 123, and be beneficial to improve the structural strength and deformation resistance of the cross beam lower joint area, thereby being beneficial to improve the structural stability and bending and torsional resistance of the vehicle body 1, and improve the safety of the vehicle body 1.

[0060] In the embodiment, the first direction X, the second direction Y and the third direction Z can refer to the height direction, the width direction and the length direction of the vehicle body 1 respectively. Figure 4As shown, both the lower crossbeam 123 of the rear panel and the seat belt mounting plate 122 are provided with flanges. These flanges are used for welding to the lower inner panel 121 of the B-pillar to improve the reliability and convenience of assembly. The vehicle body 1 also includes a lower support plate 18, which is welded to the main beam cover plate 13, thereby improving the rigidity of the main beam cover plate 13 and further enhancing the stability and reliability of the main beam cover plate 13 in supporting the lower crossbeam 123 of the rear panel.

[0061] In addition, such as Figure 4 As shown, the support member 11 includes a reinforcing portion 115 that protrudes relative to the body 111, which helps to further improve the structural strength of the support member 11. The support member 11 also includes a wire harness mounting hole and a positioning hole. The wire harness mounting hole is used for wiring, and the positioning hole is used for positioning and assembling the support member 11.

[0062] In one possible implementation, such as Figures 4-7 As shown, the support member 11 includes a body 111, a first welding edge 112 and a second welding edge 113. The first welding edge 112 extends relative to the body 111 along a first direction X, and the second welding edge 113 extends relative to the body 111 along a second direction Y.

[0063] In this embodiment, along the first direction X, both sides of the support member 11 are provided with a first welding edge 112 and a second welding edge 113, so that one side of the support member 11 is welded to the lower crossbeam 123 of the rear back panel via the upper first welding edge 112 and the second welding edge 113, and the other side of the support member 11 is welded to the main beam cover plate 13 and the upper main beam cover plate 17 via the lower first welding edge 112 and the second welding edge 113. The first welding edge 112 extends relative to the body 111 along the first direction X, and the second welding edge 113 extends relative to the body 111 along the second direction Y, which helps to increase the welding area. Therefore, the support member 11 including the first welding edge 112 and the second welding edge 113 helps to improve the firmness and stability of the welding between the support member 11 and the lower crossbeam 123 of the rear back panel and the main beam assembly, reduces the risk of the support member 11 detaching from the lower crossbeam 123 of the rear back panel and the main beam assembly, and thus improves the structural stability of the vehicle body 1.

[0064] In one possible implementation, such as Figures 4-6 As shown, the two side walls of the body 111 along the third direction Z are provided with a first welding edge 112, and the two side walls of the body 111 along the second direction Y are provided with a second welding edge 113.

[0065] In this embodiment, the first welding edge 112 is used for welding the support 11 to the lower back plate cross beam 123 and the girder assembly in the third direction Z, and the body 111 is provided with the first welding edge 112 on both sides in the third direction Z, so that the first welding edge 112 can clamp the lower back plate cross beam 123 and the girder assembly in the third direction Z, thereby improving the stability of the fixed connection of the support 11 to the lower back plate cross beam 123 and the girder assembly through the first welding edge 112, and reducing the risk of disengagement of the support 11 from the lower back plate cross beam 123 and the girder assembly in the third direction Z. At the same time, the second welding edge 113 is used for welding the support 11 to the lower back plate cross beam 123 and the girder assembly in the first direction X, and the body 111 is provided with the second welding edge 113 on both sides in the second direction Y, so as to increase the welding area of the support 11 to the lower back plate cross beam 123 and the girder assembly in the first direction X, thereby improving the stability of the fixed connection of the support 11 to the lower back plate cross beam 123 and the girder assembly through the second welding edge 113, and reducing the risk of disengagement of the support 11 from the lower back plate cross beam 123 and the girder assembly in the first direction X.

[0066] In a possible implementation, as shown in Figure 4 and Figure 5 The first welding edge 112 is inclined relative to the body 111, and the first welding edge 112 and the body 111 have an included angle a satisfying 100°≤a≤130°. In some embodiments, the included angle a can be 100°, 105°, 110°, 115°, 120°, 125°, 130°, etc.

[0067] In this embodiment, when the included angle a is too large, the clamping effect of the first welding edge 112 of the support 11 on the lower back plate cross beam 123 and the girder assembly is reduced, and the firmness and stability of the welding of the first welding edge 112 to the lower back plate cross beam 123 and the girder assembly are adversely affected. When the included angle a is too small, the connection between the first welding edge 112 and the body 111 is prone to breakage, and welding is inconvenient.

[0068] Therefore, satisfying 100°≤a≤130° is conducive to improving the firmness and stability of the welding of the first welding edge 112 to the lower back plate cross beam 123 and the girder assembly, and at the same time, the connection between the first welding edge 112 and the body 111 has a large rigidity, so that the support 11 has good rigidity.

[0069] In a possible implementation, as shown in Figure 6 The first welding edge 112 and the second welding edge 113 have a gap 114 therebetween.

[0070] In this embodiment, the first welding edge 112 and the second welding edge 113 have a gap 114 therebetween, which is beneficial to reduce stress concentration and further improve the structural strength of the support member 11, thereby improving the structural stability of the support member 11 for supporting the lower back panel cross beam 123. Meanwhile, it is beneficial to reduce the risk of deformation and fracture of the support member 11 in the welding assembly process.

[0071] In a possible implementation, as shown in Figure 2 and Figure 8 , the vehicle body 1 further comprises a seat frame 14, which is welded with the lower back panel cross beam 123 to enclose the seat frame 14, the lower back panel cross beam 123 and the B-pillar lower inner panel 121 into a closed ring structure.

[0072] In this embodiment, the seat frame 14, the lower back panel cross beam 123 and the B-pillar lower inner panel 121 enclose a closed ring structure (as shown by the blue dashed box in Figure 8 ), so that the force is transmitted through the lower back panel cross beam 123 and the seat frame 14 when the vehicle body 1 is side-impacted, reducing the risk of deformation of the vehicle body 1, improving the crashworthiness of the vehicle body 1 and reducing the harm to personnel.

[0073] In a possible implementation, as shown in Figure 1 , Figure 2 and Figure 8 , the vehicle body 1 further comprises a rear support cross beam 15 welded with the lower back panel cross beam 123, and the outer contour of the rear support cross beam 15 is in a U shape.

[0074] In this embodiment, the outer contour of the rear support cross beam 15 is in a U shape, and the rear support cross beam 15 comprises an opening, i.e. the rear support cross beam 15 is placed upside down on the front girder 16, to improve the rigidity of the rear support cross beam 15. In addition, the lower back panel cross beam 123 and the rear support cross beam 15 are welded along the third direction Z, so that the rear support cross beam 15 can support the lower back panel cross beam 123 along the third direction Z, further improving the rigidity of the lower back panel cross beam 123, reducing the risk of fracture of the lower back panel cross beam 123, and improving the safety performance of the vehicle body 1.

[0075] In a possible implementation, as shown in Figure 2 and Figure 8 , the rear support cross beam 15 is welded with the front girder 16 and the girder upper cover plate 17.

[0076] In this embodiment, the rear support cross beam 15 is welded with the front girder 16 and the girder upper cover plate 17, which can further improve the deformation resistance of the rear support cross beam 15 and the rear support cross beam 15 in the force transmission process, thereby improving the rigidity of the closed ring structure formed by the seat frame 14, the lower back panel cross beam 123 and the B-pillar lower inner panel 121.

[0077] The embodiment of the present application provides a vehicle 2, and the vehicle body 1 is the vehicle body 1 in any of the above embodiments.

[0078] When the vehicle body 1 is used for the vehicle 2, the vehicle body 1 is provided with the support 11 and the first cavity 12, so that the structural stability and rigidity of the rear back plate lower cross beam 123 can be improved, the risk of deformation of the rear back plate lower cross beam 123 is reduced, the structural strength and deformation resistance of the cross beam lower joint area are improved, so that the structural stability and bending and torsion resistance of the vehicle body 1 are improved, and the crashworthiness of the vehicle 2 is further improved, the vehicle 2 can meet the higher star rating requirement in the collision, the personnel can be protected, and the safety performance of the vehicle 2 is improved.

[0079] In a possible implementation, as shown in Figure 8 and Figure 9 , the vehicle 2 comprises a rear back plate 21, the vehicle body 1 comprises a rear support cross beam 15, and the rear back plate 21 is welded with the rear support cross beam 15 and the rear back plate lower cross beam 123.

[0080] In the embodiment, the vehicle 2 can be a truck, the rear back plate 21 is welded with the rear support cross beam 15 and the rear back plate lower cross beam 123, so that the rear back plate 21 can be installed on the lower vehicle body, and the stability of the rear back plate 21 installed on the lower vehicle body is improved. In addition, the rear back plate 21 is welded with the rear support cross beam 15 and the rear back plate lower cross beam 123, so that the rear back plate 21, the rear support cross beam 15 and the rear back plate lower cross beam 123 form a closed loop structure (as shown in the blue dashed box in Figure 9 ), the stability and firmness of the connection between the upper vehicle body and the lower vehicle body are improved, the crashworthiness of the vehicle body is improved, and the rear support cross beam 15 is welded with the front girder 16 and the girder upper cover plate 17, so that the seat frame 14, the rear back plate lower cross beam 123 and the B column lower inner plate 121 form a closed ring structure (as shown in the blue dashed box in Figure 8 ), and the rear back plate 21 can be supported on the front girder 16, so that the rear back plate 21 and the closed ring structure (as shown in the blue dashed box in Figure 8 ) can smoothly transmit force, that is, the upper vehicle body and the lower vehicle body of the vehicle 2 can form a complete closed force transmission loop (as shown in the blue dashed box in Figure 9 ), the external force can be transmitted to Figure 8 in the blue dashed box in

[0081] In addition, as shown in Figure 2 , the vehicle 2 further comprises a cargo box mounting plate 22, and the cargo box mounting plate 22 is welded with the rear support cross beam 15 away from one side of the rear back plate lower cross beam 123 in the third direction Z, so as to further improve the torsional stiffness and torsional mode of the vehicle 2.

[0082] The above merely describes the specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto, any change or replacement within the technical scope disclosed by the embodiments of the present application should be covered in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A vehicle body, characterized by comprising: The vehicle body comprises a support, a rear backplate lower crossbeam, a B-pillar lower inner plate, a girder assembly and a seat belt mounting plate, the seat belt mounting plate is fixed on the rear backplate lower crossbeam, and the B-pillar lower inner plate is welded with the seat belt mounting plate and the rear backplate lower crossbeam to enclose a first cavity. In the first direction, one side of the support is welded with the rear backplate lower crossbeam, and the other side is welded with the girder assembly, so that the rear backplate lower crossbeam is supported on the girder assembly.

2. The vehicle body according to claim 1, characterized by The support comprises a body, a first welding edge and a second welding edge, the first welding edge extends in a first direction relative to the body, and the second welding edge extends in a second direction relative to the body.

3. The vehicle body of claim 2, wherein Both sides of the body in a third direction are provided with the first welding edge, and both sides of the body in the second direction are provided with the second welding edge.

4. The vehicle body of claim 3, wherein In the third direction, the first welding edge is inclined relative to the body, and the first welding edge and the body have an included angle α, which satisfies 100°≤α≤130°.

5. The vehicle body of claim 3, wherein The first welding edge and the second welding edge have a gap therebetween.

6. The vehicle body according to any one of claims 1 to 5, characterized by The vehicle body further comprises a seat frame, which is welded with the rear backplate lower crossbeam to enclose a closed ring structure with the seat frame, the rear backplate lower crossbeam and the B-pillar lower inner plate.

7. The vehicle body according to any one of claims 1 to 5, characterized by The vehicle body further comprises a rear support crossbeam welded with the rear backplate lower crossbeam, and the outer contour of the rear support crossbeam is in the shape of U.

8. The vehicle body of claim 7, wherein, The girder assembly comprises a front girder and a girder upper cover plate, the front girder is welded with the girder upper cover plate, and the rear support crossbeam is welded with the front girder and the girder upper cover plate.

9. A vehicle characterized by comprising: The vehicle body is any one of claims 1-8.

10. The vehicle of claim 9, wherein, The vehicle comprises a rear backplate, and the vehicle body comprises a rear support crossbeam, and the rear backplate is welded with the rear support crossbeam and the rear backplate lower crossbeam.

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