Cross-shaped rear wheel cover and shock absorber mounting plate supporting structure and vehicle body

Abstract

The utility model discloses a cross-shaped rear wheel cover and shock absorber installation plate supporting structure and a vehicle body, and relates to the field of vehicle body structures, the cross-shaped rear wheel cover and shock absorber installation plate supporting structure comprises a rear shock absorber support reinforcing piece, a rear wheel cover first reinforcing piece, a rear longitudinal beam connecting plate and a rear shock absorber support, the rear shock absorber support reinforcing piece, the rear wheel cover inner plate and the rear wheel cover first reinforcing piece are provided with first welding spots in the Y direction, and the rear shock absorber support reinforcing piece, the rear wheel cover inner plate and the rear longitudinal beam connecting plate are provided with second welding spots in the Y direction. The rear shock absorber mounting plate nut plate is arranged on the outer side of the rear wheel cover inner plate, and the rear shock absorber mounting plate nut plate, the rear wheel cover inner plate and the rear wheel cover first reinforcing piece are provided with third welding spots in the Y direction; fourth welding spots are arranged on the rear shock absorber mounting plate, the rear wheel cover inner plate and the rear wheel cover first reinforcing piece in the Y direction; all the welding spots are three-layer plate welding spots; the rear wheel cover first reinforcing piece is connected with the rear longitudinal beam connecting plate through an X-direction welding spot.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle body structures, and more specifically relates to a cross-shaped rear wheel cover and shock absorber mounting plate supporting structure and a vehicle body. Background Art

[0002] The noise caused by the vibration of the vehicle body panel due to road excitation during driving has a great impact on ride comfort. The vibration transmitted to the vehicle body through the connection point between the suspension and the vehicle body is the main cause of low-frequency road noise in the vehicle. Studies have shown that the dynamic stiffness characteristics of the chassis connection point play a leading role in the sound pressure response in the vehicle. Improving the dynamic stiffness of the connection point is equivalent to improving the dynamic stiffness of the mounting point and the stiffness ratio of the vibration isolation bushing at the mounting point, thereby improving the vibration isolation effect of the vibration isolation system composed of the vehicle body mounting point and the bushing against road excitation.

[0003] As the mounting point between the suspension and the vehicle body, the shock absorber is the key path for transmitting force from the chassis to the vehicle body. In addition to strengthening the structural stiffness of the shock absorber mounting plate itself, strengthening the rear wheel cover structure is also an important means to improve the dynamic stiffness of the shock absorber mounting point. Strengthening the rear wheel cover can also improve the stiffness and strength of the rear part of the vehicle body.

[0004] At present, the position where the vehicle body is connected to the suspension is composed of a rear wheel cover inner plate, a rear wheel cover outer plate, multiple rear wheel cover reinforcements, two rear cross beam connecting plates and a rear shock absorber reinforcement plate. In the existing vehicle body structure, only the rear wheel cover structure is reinforced separately. The overlap area of ​​the rear wheel cover reinforcement 1', rear wheel cover reinforcement 2' and rear wheel cover reinforcement 3' with the rear wheel cover 4' is small, and the rigidity of the rear wheel cover 4' itself is not high; the rear shock absorber reinforcement plate 5' is located at the lower part and only partially overlaps with the rear wheel cover reinforcement. In addition, the rear wheel cover reinforcement 1' and the rear wheel cover reinforcement 3' need to be connected to the rear floor through the rear cross beam connecting plate 1 6' and the rear cross beam connecting plate 2 7', and cannot form a strong supporting effect. The existing structural arrangement may have the risk of insufficient rigidity of the rear wheel cover or insufficient rigidity of the rear shock absorber installation, which will affect the NVH performance of the whole vehicle. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies in the prior art and to provide a cross-shaped rear wheel cover and shock absorber mounting plate support structure and a vehicle body. The cross-shaped rear wheel cover and shock absorber support structure can take into account the stiffness of the rear body and the dynamic stiffness in the X / Y direction of the rear shock absorber mounting point, thereby improving the NVH performance of the entire vehicle.

[0006] In order to achieve the above-mentioned object, the utility model provides a cross-shaped rear wheel cover and shock absorber mounting plate support structure, comprising:

[0007] A rear shock absorber bracket reinforcement is arranged on the outer side of the rear wheel housing inner plate, a rear wheel housing first reinforcement and a rear longitudinal beam connecting plate are arranged on the inner side of the rear wheel housing inner plate, a first welding point is arranged on the rear shock absorber bracket reinforcement, the rear wheel housing inner plate and the rear wheel housing first reinforcement in the Y direction, and a second welding point is arranged on the rear shock absorber bracket reinforcement, the rear wheel housing inner plate and the rear longitudinal beam connecting plate in the Y direction;

[0008] A rear shock absorber mounting plate nut plate is arranged on the outer side of the rear wheel cover inner plate, and a third welding point is arranged on the rear shock absorber mounting plate nut plate, the rear wheel cover inner plate and the rear wheel cover first reinforcement member in the Y direction;

[0009] A rear shock absorber mounting plate, covering the outer side of the rear shock absorber mounting plate nut plate, wherein the rear shock absorber mounting plate, the rear wheel cover inner plate and the rear wheel cover first reinforcement are provided with a fourth welding point in the Y direction;

[0010] Both ends of the rear shock absorber mounting plate along the X direction are respectively provided with a fitting surface with the rear wheel cover inner plate, and a second-layer plate welding point is provided on the fitting surface;

[0011] The first welding point, the second welding point, the third welding point and the fourth welding point are three-layer board welding points;

[0012] The first reinforcement of the rear wheel cover is connected to the rear longitudinal beam connecting plate through welding points.

[0013] Optionally, a second rear wheel cover reinforcement is also provided on the inner side of the rear wheel cover inner plate, the second rear wheel cover reinforcement is located on the negative side of the first rear wheel cover reinforcement in the X direction, and the second rear wheel cover reinforcement is connected to the rear floor front plate via a floor connecting plate.

[0014] Optionally, the upper end of the first reinforcement of the rear wheel housing is welded to the upper plate of the C-pillar reinforcement plate, the lower plate of the C-pillar reinforcement plate and the inner plate connecting plate of the C-pillar, the lower end of the first reinforcement of the rear wheel housing is welded to the inner plate of the rear wheel housing, the rear shock absorber bracket reinforcement and the rear longitudinal beam connecting plate, and the middle part of the first reinforcement of the rear wheel housing is welded to the inner plate of the rear wheel housing.

[0015] Optionally, a fifth welding point is provided at the upper end of the second reinforcement of the rear wheel cover, the outer panel of the rear wheel cover and the lower panel of the C-pillar reinforcement plate, a sixth welding point is provided at the lower end of the second reinforcement of the rear wheel cover, the inner panel of the rear wheel cover and the floor connecting plate, the middle part of the second reinforcement of the rear wheel cover is welded to the inner panel of the rear wheel cover, and the fifth welding point and the sixth welding point are three-layer plate welding points.

[0016] Optionally, it further comprises a C-pillar inner plate, wherein the C-pillar inner plate, the C-pillar reinforcement plate upper plate, the C-pillar reinforcement plate lower plate and the C-pillar inner plate connecting plate are welded and connected in sequence.

[0017] Optionally, the lower end of the first reinforcement of the rear wheel cover is welded to the upper end of the rear longitudinal beam connecting plate, and the lower end of the rear longitudinal beam connecting plate is welded to the end of the rear floor cross beam.

[0018] Optionally, the rear floor cross beam is arranged between the rear floor front plate and the rear floor.

[0019] Optionally, a plurality of the first welding point, the second welding point, the third welding point and the fourth welding point are respectively provided.

[0020] The utility model also provides a vehicle body, comprising the above-mentioned cross-shaped rear wheel cover and shock absorber mounting plate supporting structure.

[0021] The utility model provides a cross-shaped rear wheel cover and shock absorber mounting plate support structure and a vehicle body, and its beneficial effects are:

[0022] 1. The rear wheel cover and shock absorber mounting plate support structure is located on both sides of the inner and outer sides of the rear wheel cover inner plate, forming a cross-shaped mutual support, and the structural rigidity and strength of the wheel cover body are improved by increasing the overlap area between each reinforcement and the wheel cover;

[0023] 2. The cross-shaped reinforcement structure provides strong support for the shock absorber mounting point in the X and Y directions, which can significantly improve the dynamic stiffness of the shock absorber mounting point, a key NVH parameter, and help improve the vibration isolation effect of the force transmitted from the chassis to the body;

[0024] 3. One end of the rear wheel cover and shock absorber mounting plate support structure is connected to the inner and outer plates, cross beam and large plate of the rear wheel cover, and the other end is connected to the C ring structure of the vehicle body, so that the local stiffness and strength of the C ring of the vehicle body are improved;

[0025] 4. The design of the rear wheel cover and shock absorber mounting plate support structure is highly universal and can be used as a reference for subsequent passenger car models to achieve platform development.

[0026] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0028] Figure 1 A structural schematic diagram of an existing rear wheel cover and shock absorber mounting plate support structure is shown.

[0029] Figure 2A schematic diagram of the inner structure of a cross-shaped rear wheel cover and a shock absorber mounting plate support structure according to an embodiment of the utility model is shown.

[0030] Figure 3 A schematic diagram of the outer structure of a cross-shaped rear wheel cover and a shock absorber mounting plate support structure according to an embodiment of the utility model is shown.

[0031] Figure 4 A schematic diagram showing the positional relationship between the first reinforcement of the rear wheel cover and the rear shock absorber mounting plate according to an embodiment of the utility model is shown.

[0032] Figure 5 Shows Figure 4 Rear view of.

[0033] Figure 1 Description of reference numerals:

[0034] 1', rear wheel cover reinforcement piece 1; 2', rear wheel cover reinforcement piece 2; 3', rear wheel cover reinforcement piece 3; 4', rear wheel cover; 5', rear shock absorber reinforcement plate; 6', rear cross beam connecting plate 1; 7', rear cross beam connecting plate 2.

[0035] Figures 2 to 5 Description of reference numerals:

[0036] 1. Rear wheel housing inner panel; 11. Rear wheel housing first reinforcement; 12. Rear cross beam connecting plate; 2. Rear wheel housing outer panel; 21. Rear wheel housing second reinforcement plate; 22. Floor connecting plate; 3. Rear shock absorber mounting plate; 31. Rear shock absorber mounting plate nut plate; 32. Rear shock absorber bracket reinforcement; 4. C-pillar inner panel; 5. Rear floor; 6. Rear floor cross beam; 7. Rear floor front panel. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0038] The utility model provides a cross-shaped rear wheel cover and shock absorber mounting plate support structure, comprising:

[0039] A rear shock absorber bracket reinforcement is arranged on the outer side of the rear wheel housing inner plate, a rear wheel housing first reinforcement and a rear longitudinal beam connecting plate are arranged on the inner side of the rear wheel housing inner plate, a first welding point is arranged on the rear shock absorber bracket reinforcement, the rear wheel housing inner plate and the rear wheel housing first reinforcement in the Y direction, and a second welding point is arranged on the rear shock absorber bracket reinforcement, the rear wheel housing inner plate and the rear longitudinal beam connecting plate in the Y direction;

[0040] A rear shock absorber mounting plate nut plate is arranged on the outer side of the rear wheel cover inner plate, and a third welding point is arranged on the rear shock absorber mounting plate nut plate, the rear wheel cover inner plate and the first reinforcement of the rear wheel cover in the Y direction;

[0041] A rear shock absorber mounting plate, covering the outer side of the rear shock absorber mounting plate nut plate, and a fourth welding point is arranged on the rear shock absorber mounting plate, the rear wheel cover inner plate and the first reinforcement of the rear wheel cover in the Y direction;

[0042] Both ends of the rear shock absorber mounting plate along the X direction are respectively provided with a fitting surface with the rear wheel cover inner plate, and a second-layer plate welding point is provided on the fitting surface;

[0043] The first welding point, the second welding point, the third welding point and the fourth welding point are three-layer board welding points;

[0044] The first reinforcement of the rear wheel housing is connected to the rear longitudinal beam connecting plate through welding points.

[0045] Specifically, a rear shock absorber bracket reinforcement is arranged on the outer side of the rear wheel cover inner plate, and the rear shock absorber bracket reinforcement is arranged corresponding to the first reinforcement and the rear longitudinal beam connecting plate on the inner side, and the rear wheel cover inner plate is respectively connected to the first reinforcement and the rear longitudinal beam connecting plate by welding points, and these welding points are three-layer plate welding points in the Y direction, so that the rear wheel cover inner plate is relatively supported in the Y direction; in addition, a rear shock absorber mounting plate nut plate and a rear shock absorber mounting plate are arranged on the outer side of the rear wheel cover inner plate, and the rear shock absorber mounting plate nut plate and the rear shock absorber mounting plate are sequentially covered on the outer side of the rear wheel cover inner plate, and are connected to the first reinforcement of the rear wheel cover by welding points, and the first reinforcement of the rear wheel cover is then welded and fixed by the rear longitudinal beam connecting plate, and these welding points are also three-layer plate welding points, so that the rear wheel cover inner plate is relatively supported in the X direction. Through the above structure, the welding area between the inner and outer reinforcements of the rear wheel cover inner plate and the rear wheel cover inner plate is increased, and the limiting support in the X and Y directions is achieved through the welding points, thereby improving the structural rigidity and strength of the rear wheel cover.

[0046] Optionally, a second rear wheel cover reinforcement is also provided on the inner side of the rear wheel cover inner plate, the second rear wheel cover reinforcement is located on the negative side of the first rear wheel cover reinforcement in the X direction, and the second rear wheel cover reinforcement is connected to the rear floor front plate through a floor connecting plate.

[0047] Specifically, in addition to the first rear wheel cover reinforcement, a second rear wheel cover reinforcement is also provided on the inner side of the rear wheel cover inner panel, and the second rear wheel cover reinforcement is relatively closer to the center floor direction of the vehicle body; the rear floor connecting plate is provided between the rear wheel cover inner panel and the rear floor front panel, and the lower end of the second rear wheel cover reinforcement is also connected to the rear floor connecting plate, and the upper end of the second rear wheel cover reinforcement is welded to the rear wheel cover outer panel. In this way, in addition to cross-shaped support of the rear wheel cover by the reinforcement, the rear wheel cover inner panel and the rear wheel cover outer panel are also supported by the second rear wheel cover reinforcement, thereby improving the structural rigidity and strength of the wheel cover body.

[0048] Optionally, the upper end of the first reinforcement of the rear wheel housing is welded to the upper plate of the C-pillar reinforcement plate, the lower plate of the C-pillar reinforcement plate and the inner plate connecting plate of the C-pillar, the lower end of the first reinforcement of the rear wheel housing is welded to the inner plate of the rear wheel housing, the rear shock absorber bracket reinforcement and the rear longitudinal beam connecting plate, and the middle part of the first reinforcement of the rear wheel housing is welded to the inner plate of the rear wheel housing.

[0049] Specifically, the first reinforcement of the rear wheel cover is arranged on the inner side of the rear wheel cover inner plate, wherein the middle part of the first reinforcement of the rear wheel cover is only welded to the rear wheel cover inner plate, the upper end and the lower end of the first reinforcement of the rear wheel cover are respectively connected to other parts of the rear wheel cover assembly, the upper end of the first reinforcement of the rear wheel cover is respectively welded to the upper plate of the C-pillar reinforcement, the lower plate of the C-pillar reinforcement plate and the connecting plate of the C-pillar inner plate, the lower end of the first reinforcement of the rear wheel cover is three-layer welded to the rear wheel cover inner plate and the rear shock absorber bracket reinforcement, and the lower end of the first reinforcement of the rear wheel cover is also three-layer welded to the rear wheel cover inner plate and the rear longitudinal beam connecting plate. In this way, the connection welding points and the overlap area of ​​the first reinforcement of the rear wheel cover are increased, so that the first reinforcement of the rear wheel cover can provide more strength and rigidity support to the inner plate of the rear wheel cover.

[0050] Optionally, a fifth welding point is provided at the upper end of the second reinforcement of the rear wheel cover, the outer panel of the rear wheel cover and the lower plate of the C-pillar reinforcement plate, a sixth welding point is provided at the lower end of the second reinforcement of the rear wheel cover, the inner panel of the rear wheel cover and the floor connecting plate, the middle part of the second reinforcement of the rear wheel cover is welded to the inner panel of the rear wheel cover, and the fifth welding point and the sixth welding point are three-layer plate welding points.

[0051] Specifically, the outer panel of the rear wheel housing and the inner panel of the rear wheel housing are connected by welding points through the flange of the stamped part. When the second reinforcement of the rear wheel housing is fitted with the inner panel of the rear wheel housing, there is also a fitting position between the second reinforcement of the rear wheel housing and the outer panel of the rear wheel housing, and a lower plate of the C-pillar reinforcement plate is also provided at the fitting position, which is connected by three-layer plate welding points. In this way, the second reinforcement of the rear wheel housing can be connected with the outer panel of the rear wheel housing and the lower plate of the C-pillar reinforcement plate, thereby increasing the fixing strength of the second reinforcement of the rear wheel housing. The lower end of the second reinforcement of the rear wheel housing overlaps with the upper end of the floor connecting plate, and a welding point is provided in the overlapping area, and it is connected to the inner panel of the rear wheel housing at the same time. In this way, a three-layer plate welding point is also provided at the lower end of the second reinforcement of the rear wheel housing. The welding points distributed along the length direction of the second reinforcement of the rear wheel housing increase its connection area with the inner panel of the rear wheel housing, thereby increasing the fixing strength of the rear wheel housing.

[0052] Optionally, it also includes a C-pillar inner plate, and the C-pillar inner plate, the C-pillar reinforcement plate upper plate, the C-pillar reinforcement plate lower plate and the C-pillar inner plate connecting plate are welded and connected in sequence.

[0053] Specifically, in addition to the first and second rear wheel housing reinforcements, the C-pillar inner plate, the C-pillar reinforcement plate upper plate, the C-pillar reinforcement plate lower plate and the C-pillar inner plate connecting plate form the C-ring of the vehicle body. The above four stamping parts are arranged in sequence from top to bottom, and the rear wheel housing inner plate, the rear wheel housing first reinforcement, the C-pillar inner plate and the C-pillar inner plate connecting member are welded and connected, the C-pillar reinforcement plate upper plate is welded and connected with the rear wheel housing inner plate and the rear wheel housing outer plate, and the C-pillar reinforcement plate lower plate is welded and connected with the rear wheel housing outer plate and the rear wheel housing second reinforcement plate. In this way, each plate of the vehicle body C-ring is connected to the inner and outer plates of the rear wheel housing, or to the rear wheel housing reinforcement plate, and the lower part of the rear wheel housing reinforcement plate is connected to the vehicle body cross beam and the floor, so that the rear wheel housing reinforcement plate serves as a channel connecting the vehicle body C-ring and the vehicle body cross beam and the large plate structure, so that the stiffness and strength performance of the vehicle body C-ring are improved.

[0054] Optionally, the lower end of the first reinforcement of the rear wheel housing is welded to the upper end of the rear longitudinal beam connecting plate, and the lower end of the rear longitudinal beam connecting plate is welded to the end of the rear floor cross beam.

[0055] Specifically, the connection between the body C ring and body components such as the rear wheel cover, rear floor and rear floor crossbeam is strengthened by the first rear wheel cover reinforcement and the second rear wheel cover reinforcement, so that the rear wheel cover is supported and strengthened in all directions while the rigidity of the body C ring is improved.

[0056] Optionally, a rear floor cross member is disposed between the rear floor front plate and the rear floor.

[0057] Specifically, the second reinforcement of the rear wheel cover is connected to the front plate of the rear floor through the bottom plate connecting plate, and the end of the rear floor cross beam in the negative X direction is connected to the front plate of the rear floor, so that the second reinforcement of the rear wheel cover can be fixedly connected to the rear floor cross beam; in addition, the first reinforcement of the rear wheel cover is connected to the rear floor and the rear floor cross beam through the rear longitudinal beam connecting plate, so that the connection area between the inner plate of the rear wheel cover and the floor part of the vehicle body can be increased through the two reinforcements of the rear wheel cover, thereby improving the strength and rigidity of the rear wheel cover.

[0058] Optionally, a plurality of the first welding point, the second welding point, the third welding point and the fourth welding point are respectively provided.

[0059] Specifically, the support structure forms a multi-position and multi-level welding relationship through the rear shock absorber mounting plate, the rear shock absorber mounting plate nut plate, the inner and outer plates of the rear wheel cover, and the first and second reinforcements of the rear wheel cover, taking into account the performance of both local stiffness of the vehicle body structure and point-in-force stiffness of the chassis installation, and can greatly improve the NVH key parameter, the point-in-force stiffness of the shock absorber installation, which helps to enhance the vibration isolation effect of the force transmitted from the chassis to the vehicle body, and has an outstanding effect on suppressing the low-frequency noise and high-frequency road noise caused by rear suspension excitation.

[0060] The utility model also provides a vehicle body, comprising the above-mentioned cross-shaped rear wheel cover and shock absorber mounting plate supporting structure.

[0061] Example

[0062] like Figures 2 to 5 As shown, the utility model provides a cross-shaped rear wheel cover and shock absorber mounting plate support structure, including:

[0063] The rear shock absorber bracket reinforcement 32 is arranged on the outer side of the rear wheel housing inner plate 1, the inner side of the rear wheel housing inner plate 1 is provided with the rear wheel housing first reinforcement 11 and the rear longitudinal beam connecting plate 12, the rear shock absorber bracket reinforcement 32, the rear wheel housing inner plate 1 and the rear wheel housing first reinforcement 11 are provided with a first welding point in the Y direction, and the rear shock absorber bracket reinforcement 32, the rear wheel housing inner plate 1 and the rear longitudinal beam connecting plate 12 are provided with a second welding point in the Y direction;

[0064] The rear shock absorber mounting plate nut plate 31 is arranged on the outer side of the rear wheel housing inner plate 1, and the rear shock absorber mounting plate nut plate 31, the rear wheel housing inner plate 1 and the rear wheel housing first reinforcement 11 are provided with a third welding point in the Y direction;

[0065] The rear shock absorber mounting plate 3 covers the outer side of the rear shock absorber mounting plate nut plate 31, and the rear shock absorber mounting plate 3, the rear wheel housing inner plate 1 and the rear wheel housing first reinforcement 11 are provided with a fourth welding point in the Y direction;

[0066] Both ends of the rear shock absorber mounting plate 3 along the X direction are respectively provided with a fitting surface with the rear wheel housing inner plate 1, and a second-layer plate welding point is provided on the fitting surface;

[0067] The first welding point, the second welding point, the third welding point and the fourth welding point are three-layer board welding points;

[0068] The rear wheel house first reinforcement 11 is connected to the rear longitudinal beam connecting plate 12 via welding points.

[0069] In this embodiment, a second rear wheel cover reinforcement 21 is also provided on the inner side of the rear wheel cover inner panel 1. The second rear wheel cover reinforcement 21 is located on the negative side of the first rear wheel cover reinforcement 11 in the X direction. The second rear wheel cover reinforcement 21 is connected to the rear floor front panel 7 through the floor connecting plate 22.

[0070] In this embodiment, the upper end of the first reinforcement 11 of the rear wheel housing is welded to the upper plate of the C-pillar reinforcement plate, the lower plate of the C-pillar reinforcement plate and the connecting plate of the inner plate of the C-pillar, the lower end of the first reinforcement 11 of the rear wheel housing is welded to the inner plate 1 of the rear wheel housing, the rear shock absorber bracket reinforcement 32 and the rear longitudinal beam connecting plate 12, and the middle part of the first reinforcement 11 of the rear wheel housing is welded to the inner plate 1 of the rear wheel housing.

[0071] In this embodiment, a fifth welding point is arranged at the upper end of the second reinforcement 21 of the rear wheel housing and the outer panel 2 of the rear wheel housing and the lower panel of the C-pillar reinforcement panel, a sixth welding point is arranged at the lower end of the second reinforcement 21 of the rear wheel housing and the inner panel 1 of the rear wheel housing and the floor connecting plate 22, and the middle part of the second reinforcement 21 of the rear wheel housing is welded to the inner panel 1 of the rear wheel housing, and the fifth welding point and the sixth welding point are three-layer plate welding points.

[0072] In the present embodiment, a C-pillar inner panel 4 is also included, and the C-pillar inner panel 4, the C-pillar reinforcement plate upper panel, the C-pillar reinforcement plate lower panel and the C-pillar inner panel connecting plate are welded and connected in sequence.

[0073] In this embodiment, the lower end of the first reinforcement 11 of the rear wheel housing is welded to the upper end of the rear longitudinal beam connecting plate 12 , and the lower end of the rear longitudinal beam connecting plate 12 is welded to the end of the rear floor cross beam 6 .

[0074] In the present embodiment, the rear floor cross member 6 is disposed between the rear floor front plate 7 and the rear floor 5 .

[0075] In this embodiment, a plurality of the first welding points, the second welding points, the third welding points and the fourth welding points are respectively provided.

[0076] The utility model also provides a vehicle body, comprising the above-mentioned cross-shaped rear wheel cover and shock absorber mounting plate supporting structure.

[0077] In summary, the support structure is provided with a rear shock absorber mounting plate 3, a rear shock absorber mounting plate nut plate 31 and a rear shock absorber bracket reinforcement 32 on the outer side of the rear wheel cover inner panel 1, and a rear wheel cover first reinforcement 11 and a rear cross beam connecting plate 12 are arranged on the inner side thereof, so that the reinforcements on the inner and outer sides of the rear wheel cover inner panel are fixed and supported by three-layer plate welding points, thereby increasing the overlap area and improving the overall strength and rigidity of the rear wheel cover structure; in addition, a rear wheel cover second reinforcement plate 21 and a floor connecting plate 22 are also provided on the inner side of the rear wheel cover inner panel 1, so that the connection between the body C ring and body components such as the rear wheel cover inner panel 1, the rear floor 5 and the rear floor cross beam 6 is strengthened, so that the rear wheel cover is supported and strengthened in all directions while the rigidity of the body C ring is improved.

[0078] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A cross-shaped rear wheel cover and shock absorber mounting plate support structure, characterized in that: include: A rear shock absorber support reinforcement (32) is arranged on the outer side of the rear wheel cover inner plate (1), a rear wheel cover first reinforcement (11) and a rear longitudinal beam connecting plate (12) are arranged on the inner side of the rear wheel cover inner plate (1), a first welding point is arranged on the rear shock absorber support reinforcement (32), the rear wheel cover inner plate (1) and the rear wheel cover first reinforcement (11) in the Y direction, and a second welding point is arranged on the rear shock absorber support reinforcement (32), the rear wheel cover inner plate (1) and the rear longitudinal beam connecting plate (12) in the Y direction; A rear shock absorber mounting plate nut plate (31) is arranged on the outer side of the rear wheel cover inner plate (1), and a third welding point is arranged in the Y direction on the rear shock absorber mounting plate nut plate (31), the rear wheel cover inner plate (1) and the rear wheel cover first reinforcement member (11); A rear shock absorber mounting plate (3) covers the outer side of the rear shock absorber mounting plate nut plate (31), and a fourth welding point is arranged in the Y direction on the rear shock absorber mounting plate (3), the rear wheel cover inner plate (1) and the rear wheel cover first reinforcement member (11); The two ends of the rear shock absorber mounting plate (3) along the X direction are respectively provided with a fitting surface with the rear wheel cover inner plate (1), and the fitting surface is provided with a second-layer plate welding point; The first welding point, the second welding point, the third welding point and the fourth welding point are three-layer board welding points; The rear wheel cover first reinforcement (11) is connected to the rear longitudinal beam connecting plate (12) via a welding point.

2. The cross-shaped rear wheel cover and shock absorber mounting plate support structure according to claim 1, characterized in that: A rear wheel cover second reinforcement (21) is also provided on the inner side of the rear wheel cover inner plate (1), the rear wheel cover second reinforcement (21) is located on the negative X side of the rear wheel cover first reinforcement (11), and the rear wheel cover second reinforcement (21) is connected to the rear floor front plate (7) via a floor connecting plate (22).

3. The cross-shaped rear wheel cover and shock absorber mounting plate support structure according to claim 2, characterized in that: The upper end of the first rear wheel cover reinforcement (11) is welded to the upper plate of the C-pillar reinforcement plate, the lower plate of the C-pillar reinforcement plate and the connecting plate of the inner plate of the C-pillar, the lower end of the first rear wheel cover reinforcement (11) is welded to the inner plate of the rear wheel cover (1), the rear shock absorber bracket reinforcement (32) and the rear longitudinal beam connecting plate (12), and the middle part of the first rear wheel cover reinforcement (11) is welded to the inner plate of the rear wheel cover (1).

4. The cross-shaped rear wheel cover and shock absorber mounting plate support structure according to claim 3, characterized in that: The upper end of the second reinforcement member (21) of the rear wheel cover is provided with a fifth welding point together with the outer panel (2) of the rear wheel cover and the lower panel of the C-pillar reinforcement panel, the lower end of the second reinforcement member (21) of the rear wheel cover is provided with a sixth welding point together with the inner panel (1) of the rear wheel cover and the floor connecting panel (22), the middle part of the second reinforcement member (21) of the rear wheel cover is welded to the inner panel (1) of the rear wheel cover, and the fifth welding point and the sixth welding point are three-layer plate welding points.

5. The cross-shaped rear wheel cover and shock absorber mounting plate support structure according to claim 4, characterized in that: It also includes a C-pillar inner plate (4), wherein the C-pillar inner plate (4), the C-pillar reinforcement plate upper plate, the C-pillar reinforcement plate lower plate and the C-pillar inner plate connecting plate are welded and connected in sequence.

6. The cross-shaped rear wheel cover and shock absorber mounting plate support structure according to claim 2, characterized in that: The lower end of the first reinforcement member (11) of the rear wheel cover is welded to the upper end of the rear longitudinal beam connecting plate (12), and the lower end of the rear longitudinal beam connecting plate (12) is welded to the end of the rear floor cross beam (6).

7. The cross-shaped rear wheel cover and shock absorber mounting plate support structure according to claim 6, characterized in that: The rear floor cross beam (6) is arranged between the rear floor front plate (7) and the rear floor (5).

8. The cross-shaped rear wheel cover and shock absorber mounting plate support structure according to claim 1, characterized in that: A plurality of the first welding points, the second welding points, the third welding points and the fourth welding points are respectively provided.

9. A vehicle body, characterized in that: It comprises a cross-shaped rear wheel cover and a shock absorber mounting plate supporting structure according to any one of claims 1 to 8.

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