A vehicle body

Abstract

The utility model discloses a vehicle body, including cab rear plate crossbeam, cab floor crossbeam, cab rear plate and cab floor, cab rear plate crossbeam includes first board body, second board body, one end is connected with first board body, and the other end is connected with third board body, in second direction, first board body and cab floor crossbeam overlap, and the cab rear plate is connected on second board body, the one end of cab floor overlaps in cab rear plate, and the other end is connected with cab floor crossbeam, the utility model discloses cab rear plate crossbeam is by first board body, second board body and third board body of successive connection in proper order, and cab rear plate crossbeam and cab floor crossbeam overlap in second direction, and second board body is connected with cab rear plate, and cab floor is connected with cab rear plate and cab floor crossbeam, in whole car torsion process, all the shear force that welding spot suffers, can reduce the fatigue failure risk of welding spot greatly.

Description

Technical Field

[0001] This utility model relates to the field of vehicle body structure technology, and in particular to a vehicle body. Background Technology

[0002] Currently, the rear panel crossbeam of the cab is located between the rear panel of the cab and the cab floor crossbeam, connecting them vertically. The main cross-section of the rear panel crossbeam is C-shaped, and it overlaps with the cab floor crossbeam and the left / right support plates of the rear panel crossbeam in the Z-direction, requiring welding points in the Z-direction. The left and right sides of the rear panel crossbeam connect to the side panel assembly and also provide mounting points for the cargo box floor, all in the Y-direction, requiring welding points in the Y-direction. During the torsion of the entire vehicle, the forces on the Y-direction and Z-direction welding points are both in the peeling direction, thus posing a risk of fatigue failure at the welding points, leading to poor connection strength between various components. Utility Model Content

[0003] The purpose of this invention is to provide a vehicle body that solves the problems in the prior art, reduces the risk of weld fatigue failure, and improves the connection strength between components.

[0004] This utility model provides a vehicle body, including a rear cab crossbeam, a cab floor crossbeam, a rear cab panel, and a cab floor. The rear cab crossbeam includes:

[0005] A first plate, wherein the first plate is disposed along a first direction;

[0006] The second plate is arranged along a second direction, which is orthogonal to the first direction. One end of the second plate is connected to the first plate, and the other end of the second plate is connected to a third plate. The first plate, the second plate, and the third plate together form a cavity with an opening.

[0007] in:

[0008] In the second direction, the first plate overlaps with the cab floor beam;

[0009] The rear panel of the cab is connected to the second plate, and the rear panel of the cab is connected to the side of the second plate opposite to the cavity.

[0010] The first plate has the cab floor on the side opposite to the cavity, one end of the cab floor overlaps the rear panel of the cab, and the other end of the cab floor is connected to the cab floor crossbeam.

[0011] In a vehicle body as described above, preferably, the first plate has a first surface and a second surface disposed opposite to each other, and the first plate is provided with a mounting opening penetrating the first surface and the second surface, the mounting opening for the beam cover plate to pass through.

[0012] In the vehicle body described above, preferably, the first surface is provided with a first overlapping portion, the first overlapping portion is provided at the mounting opening, and the beam cover plate overlaps on the first overlapping portion.

[0013] In the vehicle body described above, preferably, the third panel has a second overlapping portion, which is supported on the main beam cover plate.

[0014] In the vehicle body described above, preferably, the main beam cover plate is provided with a cargo box mounting support, the cargo box mounting support is connected to the third plate, and the cargo box mounting support is located on the side of the third plate away from the cavity.

[0015] In the vehicle body described above, preferably, in the second direction, a rear panel crossbeam support plate is attached to the first panel.

[0016] In the vehicle body described above, preferably, in a third direction, the two ends of the rear panel crossbeam of the cab are connected to side panel assemblies, the side panel assemblies overlap with the rear panel crossbeam of the cab in the second direction, and the third direction is orthogonal to the second direction.

[0017] In the vehicle body described above, preferably, the vehicle body further includes a roof, a roof crossbeam, a left inner panel, a left outer panel, a right inner panel, and a right outer panel, wherein:

[0018] The top cover, the top cover beam, and the rear panel of the cab together form a first cavity;

[0019] The left inner panel, the left outer panel, and the rear panel of the cab together form a second cavity;

[0020] The cab floor, the cab floor crossbeam, the cab rear panel crossbeam, and the cab rear panel together form a third cavity;

[0021] The right side inner panel, the right side outer panel, and the rear panel of the cab together form a fourth cavity;

[0022] The first cavity, the second cavity, the third cavity, and the fourth cavity are connected end to end to form a ring structure.

[0023] In a vehicle body as described above, preferably, the cab floor has a third overlap portion, through which the cab floor overlaps with the rear cab panel.

[0024] In the vehicle body described above, preferably, the cab floor is provided with a plurality of first reinforcing members, the plurality of first reinforcing members protruding from the surface of the cab floor, the rear panel of the cab is provided with a plurality of second reinforcing members, the plurality of second reinforcing members protruding from the surface of the rear panel of the cab, the plurality of second reinforcing members being correspondingly arranged with the plurality of first reinforcing members, and each second reinforcing member being connected to the corresponding first reinforcing member by the third overlapping portion.

[0025] Compared with the prior art, the rear crossbeam of the cab of this utility model is composed of a first plate, a second plate and a third plate connected in sequence to form an inverted U-shaped structure. The rear crossbeam of the cab overlaps with the cab floor crossbeam in the second direction. The second plate is connected to the rear cab. The cab floor is connected to both the rear cab and the cab floor crossbeam. During the torsion of the whole vehicle, the force on the weld point is perpendicular to the direction of the weld point and is a shear force, which can significantly reduce the risk of weld point fatigue failure. Attached Figure Description

[0026] Figure 1 This is a partial perspective view of the vehicle body from a first-view perspective provided in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the rear crossbeam of the cab provided in an embodiment of this utility model;

[0028] Figure 3 This is a cross-sectional view of the rear beam of the cab in the first direction provided in an embodiment of this utility model;

[0029] Figure 4 This is a partial perspective view of the vehicle body from a second viewpoint provided in an embodiment of this utility model;

[0030] Figure 5 This is a partial front view of the vehicle body provided in an embodiment of this utility model;

[0031] Figure 6 This is a partial perspective view of the vehicle body from a third-person view provided in an embodiment of this utility model;

[0032] Figure 7 yes Figure 6 Cross-sectional view along the AA direction;

[0033] Figure 8 This is a partial perspective view of the connection between the rear crossbeam of the cab and the side panel assembly provided in an embodiment of this utility model;

[0034] Figure 9 yes Figure 8 Cross-sectional view along the BB direction;

[0035] Figure 10 yes Figure 1 Cross-sectional view along the CC direction;

[0036] Figure 11 yes Figure 1 Cross-sectional view along the DD direction;

[0037] Figure 12 yes Figure 1 Cross-sectional view along the EE direction;

[0038] Figure 13 yes Figure 1 Cross-sectional view along the FF direction;

[0039] Figure 14 This is a partial perspective view of the connection between the cab floor and the rear panel of the cab provided in an embodiment of this utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1-Rear crossbeam of the cab, 11-First plate, 111-First surface, 112-Second surface, 113-Mounting port, 114-First overlapping part, 12-Second plate, 13-Third plate, 131-Second overlapping part, 14-Cavity;

[0042] 2- Cab floor crossbeam;

[0043] 3-Rear panel of cab, 31-Second reinforcing member, 311-Second rib;

[0044] 4-Cab floor, 41-Third lap joint, 42-First reinforcing member, 421-First rib;

[0045] 5-Main beam cover plate, 6-Cargo box mounting support, 7-Rear panel crossbeam support plate, 8-Side panel assembly, 9-Box bottom plate mounting point;

[0046] 21-Carriage floor, 22-Carriage floor crossbeam, 23-Top cover, 24-Top cover crossbeam, 25-Left side inner panel, 26-Left side outer panel, 27-Right side inner panel, 28-Right side outer panel, 29-First cavity, 30-Second cavity, 31-Third cavity, 32-Fourth cavity;

[0047] D1 - First direction, D2 - Second direction, D3 - Third direction. Detailed Implementation

[0048] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] Reference Figure 1 As shown, this utility model provides a vehicle body, including a cab rear panel crossbeam 1, a cab floor crossbeam 2, a cab rear panel 3, and a cab floor 4.

[0050] Reference Figure 2 as well as Figure 3 As shown, the rear crossbeam 1 of the cab includes a first plate 11, a second plate 12, and a third plate 13, wherein:

[0051] The first plate 11 is set along the first direction D1, which is the direction of gravity (Z direction in the background art), and the first plate 11 is set vertically.

[0052] The second plate 12 is arranged along the second direction D2. The first direction D1 is orthogonal to the second direction D2. The second direction D2 is horizontal (vehicle driving direction). The second plate 12 is horizontally arranged above the first plate 11 and is connected to the first plate 11. The third plate 13 is connected to the other end of the second plate 12 and extends downward. The first plate 11, the second plate 12 and the third plate 13 enclose a cavity 14 with an opening. The opening of the cavity 14 faces downward, thus forming a U-shaped cab rear panel crossbeam 1.

[0053] In the embodiments provided in this application, the first plate 11 overlaps with the cab floor beam 2 in the second direction D2, that is, the first plate 11 overlaps with the cab floor beam 2 in the horizontal direction. When the vehicle is twisted, the direction of the force on the weld is the direction of the shear force, which can greatly reduce the risk of weld fatigue failure.

[0054] The second plate 12 is connected to the rear cab panel 3, which is connected to the side of the second plate 12 away from the cavity 14. That is, the rear cab panel 3 is connected to the top of the rear cab panel crossbeam 1. The first plate 11 has a cab floor 4 on the side away from the cavity 14. One end of the cab floor 4 overlaps the rear cab panel 3, and the other end of the cab floor 4 is connected to the cab floor crossbeam 2. Thus, the cab floor 4, the rear cab panel 3, the rear cab panel crossbeam 1, and the cab floor crossbeam 2 are connected in sequence to form a closed triangular-like cavity. Based on the structural characteristics of the triangle, the connection strength between the various components is improved, which is conducive to improving the structural strength of the whole vehicle.

[0055] Reference Figure 4As shown, the first plate 11 has a first surface 111 and a second surface 112 that are disposed opposite to each other. The first plate 11 is provided with an installation opening 113 that passes through the first surface 111 and the second surface 112. The installation opening 113 allows the main beam cover plate 5 to pass through. The first surface 111 is provided with a first overlapping part 114. The first overlapping part 114 is located at the installation opening 113. The main beam cover plate 5 overlaps with the first overlapping part 114 and supports the main beam cover plate 5.

[0056] Furthermore, referring to Figure 5 As shown, the third plate 13 is provided with a second overlapping part 131, which is supported on the main beam cover plate 5, so that the rear crossbeam 1 of the cab is fastened to the main beam cover plate 5. The main beam cover plate 5 provides support for the rear crossbeam 1 of the cab to improve the structural strength of the rear crossbeam 1 of the cab.

[0057] Continue to refer to Figure 5 As shown, a cargo box mounting support 6 is provided on the main beam cover plate 5. The cargo box mounting support 6 is connected to the third plate 13 and is located on the side of the third plate 13 opposite to the cavity 14. The cargo box mounting support 6 is used to support or install heavy-duty components such as cargo boxes. The main beam cover plate 5 and the rear crossbeam 1 of the cab together provide support for the cargo box mounting bracket, improving the support capacity of the cargo box mounting support 6 and enabling components such as cargo boxes to be installed more stably within the cargo box mounting support 6.

[0058] In the second direction D2, a rear plate crossbeam support plate 7 is attached to the first plate 11. The rear plate crossbeam support plate 7 is attached to the first plate 11 below the cavity 14 of the rear plate crossbeam 1 of the cab. It overlaps with the first plate 11 in the horizontal direction, which can avoid the risk of weld fatigue failure.

[0059] Reference Figure 6 as well as Figure 7 As shown, the rear crossbeam 1 of the cab is connected to the cargo box mounting support 6. After the cargo box floor 21 is assembled, the cargo box floor crossbeam 22 and the rear back panel crossbeam form a whole and overlap with the main beam cover plate 5, which increases the force transmission path and can also increase the rigidity of the crossbeam parts, improving the torsional mode of the whole vehicle by about 10%.

[0060] Reference Figure 8 as well as Figure 9As shown, in the third direction D3 (Y direction in the background art), the two ends of the rear panel crossbeam 1 of the cab are connected to the side panel assembly 8. The side panel assembly 8 overlaps with the rear panel crossbeam 1 of the cab in the second direction D2. The third direction D3 is orthogonal to the second direction D2. The third direction D3 is a horizontal direction perpendicular to the second direction D2. That is, the side panel assembly 8 is connected to both the left and right ends of the rear panel crossbeam 1 of the cab. The side panel assemblies 8 on both sides overlap with the rear panel crossbeam 1 of the cab in the second direction D2. When the whole vehicle is torn, the direction of the force on the weld is the direction of the shear force, thereby further avoiding the risk of weld fatigue failure and improving the connection strength between various components.

[0061] Reference Figure 1 , Figures 10 to 13 As shown, the vehicle body also includes a roof 23, a roof crossbeam 24, a left side inner panel 25, a left side outer panel 26, a right side inner panel 27, and a right side outer panel 28, wherein:

[0062] The top cover 23, the top cover crossbeam 24, and the rear panel 3 of the cab form a first cavity 29; the left inner panel 25, the left outer panel 26, and the rear panel 3 of the cab form a second cavity 30; the cab floor 4, the cab floor crossbeam 2, the rear panel crossbeam 1 of the cab, and the rear panel 3 of the cab form a third cavity 31; the right inner panel 27, the right outer panel 28, and the rear panel 3 of the cab form a fourth cavity 32; the first cavity 29, the second cavity 30, the third cavity 31, and the fourth cavity 32 are connected end to end in sequence, and the four cavities form a ring structure around the rear panel crossbeam 1 of the cab, which greatly improves the overall torsional rigidity of the cab.

[0063] Reference Figure 3 As shown, the cab floor 4 has a third overlapping part 41, which overlaps with the cab rear panel 3. The third overlapping part 41 increases the connection strength between the cab floor 4 and the cab rear panel 3.

[0064] To further improve the connection strength between the cab floor 4 and the cab rear panel 3, refer to Figure 14 As shown, the cab floor 4 is provided with a plurality of first reinforcing members 42, which protrude from the surface of the cab floor 4 and can improve the compressive and torsional resistance of the cab floor 4.

[0065] Correspondingly, the rear panel 3 of the cab is provided with a plurality of second reinforcing members 31, which protrude from the surface of the rear panel 3 of the cab and can enhance the structural strength of the rear panel 3 of the cab.

[0066] Multiple second reinforcing members 31 are correspondingly provided with multiple first reinforcing members 42. Each second reinforcing member 31 is connected to the corresponding first reinforcing member 42 by a third overlapping part 41. The third overlapping part 41 can effectively transfer the stress of the first reinforcing member 42 and the second reinforcing member 31 to the overall structure of the cab, avoid stress concentration, and thus effectively transfer the stress on the cab floor 4 and the rear panel 3 of the cab to other parts of the vehicle body, thereby enhancing the stability of the overall structure.

[0067] In one feasible implementation, the first reinforcing member 42 is a first rib 421 provided on the cab floor 4, and the second reinforcing member 31 is a second rib 311 provided on the cab rear panel 3. The first rib 421 and the corresponding second rib 311 are connected at the third overlap 41 so that the cab floor 4 fits against the cab rear panel 3 to the maximum extent, thereby enhancing the overall structural strength.

[0068] Reference Figure 3 As shown, the second plate 12 is also provided with a bottom plate mounting point 9, which is located inside the cavity 14. Since the cab rear beam 1 has a U-shaped structure, it can provide high torsional stiffness and bending strength, making it suitable for critical support parts of the vehicle. The bottom plate mounting point 9 is located inside the cavity 14 of the cab rear beam 1, which can effectively utilize space and enhance the stability of the structure. On the other hand, the cab rear beam 1 can provide sufficient support for the bottom plate, so that the bottom plate can be stably fixed inside the vehicle.

[0069] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A vehicle body comprising a cab rear panel cross member, a cab floor cross member, a cab rear panel, and a cab floor, characterized by, The rear crossbeam of the cab includes: A first plate, wherein the first plate is disposed along a first direction; The second plate is arranged along a second direction, which is orthogonal to the first direction. One end of the second plate is connected to the first plate, and the other end of the second plate is connected to a third plate. The first plate, the second plate, and the third plate together form a cavity with an opening. in: In the second direction, the first plate overlaps with the cab floor beam; The rear panel of the cab is connected to the second plate, and the rear panel of the cab is connected to the side of the second plate opposite to the cavity. The first plate has the cab floor on the side opposite to the cavity, one end of the cab floor overlaps the rear panel of the cab, and the other end of the cab floor is connected to the cab floor crossbeam.

2. The vehicle body according to claim 1, characterized by The first plate has a first surface and a second surface that are disposed opposite to each other. The first plate is provided with a mounting opening that penetrates the first surface and the second surface, and the mounting opening is for the beam cover plate to pass through.

3. The vehicle body of claim 2, wherein, The first surface is provided with a first overlapping part, which is located at the mounting opening, and the beam cover plate overlaps on the first overlapping part.

4. The vehicle body of claim 2, wherein, The third plate is provided with a second overlapping part, which is supported on the main beam cover plate.

5. The vehicle body of claim 2, wherein, The main beam cover plate is provided with a cargo box mounting support seat, which is connected to the third plate body and is located on the side of the third plate body away from the cavity body.

6. The vehicle body of claim 1, wherein, In the second direction, a rear plate crossbeam support plate is attached to the first plate.

7. The vehicle body of claim 1, wherein, In the third direction, the two ends of the rear panel crossbeam of the cab are connected to side panel assemblies, and the side panel assemblies overlap with the rear panel crossbeam of the cab in the second direction, and the third direction is orthogonal to the second direction.

8. The vehicle body according to claim 1, characterized in that, The vehicle body also includes a roof, a roof crossbeam, a left inner panel, a left outer panel, a right inner panel, and a right outer panel, wherein: The top cover, the top cover beam, and the rear panel of the cab together form a first cavity; The left inner panel, the left outer panel, and the rear panel of the cab together form a second cavity; The cab floor, the cab floor crossbeam, the cab rear panel crossbeam, and the cab rear panel together form a third cavity; The right side inner panel, the right side outer panel, and the rear panel of the cab together form a fourth cavity; The first cavity, the second cavity, the third cavity, and the fourth cavity are connected end to end to form a ring structure.

9. The vehicle body of claim 1, wherein, The cab floor has a third overlapping portion, and the cab floor overlaps with the rear panel of the cab through the third overlapping portion.

10. The vehicle body of claim 9, wherein, The cab floor is provided with a plurality of first reinforcing members, which protrude from the surface of the cab floor. The rear panel of the cab is provided with a plurality of second reinforcing members, which protrude from the surface of the rear panel of the cab. The plurality of second reinforcing members are correspondingly arranged with the plurality of first reinforcing members. Each second reinforcing member is connected to the corresponding first reinforcing member by the third overlapping part.

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