A rear wheel housing assembly, a vehicle body and an automobile

Abstract

The present invention provides a rear wheel housing assembly, a vehicle body and an automobile, relating to the field of automobile parts. The rear wheel housing assembly includes a rear wheel housing body, a shock absorber mounting structure, a rear floor connecting plate and a longitudinal beam connecting plate. The shock absorber mounting structure is provided on the rear wheel housing body and is used for connecting with the rear longitudinal beam. The rear end of the rear wheel housing body is used for connecting with the rear longitudinal beam through the longitudinal beam connecting plate. The longitudinal beam connecting plate is connected with the rear floor connecting plate. A cavity is formed by enclosing the rear wheel housing body, the longitudinal beam connecting plate, the rear floor connecting plate and the rear longitudinal beam. The rear wheel housing body is used for connecting with the vehicle side panel. In the solution of the present invention, by arranging the longitudinal beam connecting plate at the rear end of the rear wheel housing body, the force transmitted by the shock absorber to the rear wheel housing body and the rear longitudinal beam is dispersed at the longitudinal beam connecting plate and transmitted to the rear floor connecting plate and the vehicle side panel, which can enable the force to be transmitted in a larger range, disperse the stress at the shock absorber mounting point, improve the stiffness of the shock absorber mounting point and reduce the vehicle body vibration.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts, and more particularly, to a rear wheelhouse assembly, a vehicle body and an automobile. Background Art

[0002] With the higher pursuit of people for the quality of life, the requirements for the ride comfort of automobiles are getting higher and higher. Especially, the requirements for the interior noise during driving are attracting more and more attention. When an automobile passes through an uneven road during driving, due to the bumpy and unstable road surface, the impact force received by the rear wheels will be transmitted to the interior of the vehicle through the mounting points of the rear shock absorbers. The stiffness of the mounting points of the rear shock absorbers will directly affect the NVH performance of the automobile. The existing mounting structure of the rear shock absorbers is generally directly mounted on the rear wheelhouse body through a reinforcing plate. The force at the mounting points of the rear shock absorbers cannot be well dispersed, and stress concentration is likely to occur, affecting the structural stability of the vehicle body and the riding comfort. Summary of the Invention

[0003] The present invention aims to solve the technical problems of stress concentration and poor stiffness at the mounting points of the existing automotive rear shock absorbers.

[0004] In a first aspect, the present invention provides a rear wheelhouse assembly, including a rear wheelhouse body, a shock absorber mounting structure, a rear floor connecting plate and a longitudinal beam connecting plate. The shock absorber mounting structure is provided on the rear wheelhouse body and is used to connect with the rear longitudinal beam. The rear end of the rear wheelhouse body is used to connect with the rear longitudinal beam through the longitudinal beam connecting plate. The longitudinal beam connecting plate is connected with the rear floor connecting plate. A cavity is formed by enclosing the rear wheelhouse body, the longitudinal beam connecting plate, the rear floor connecting plate and the rear longitudinal beam. The rear wheelhouse body is used to connect with the vehicle side panel.

[0005] In the rear wheelhouse assembly of the present invention, the shock absorber mounting structure is used to mount the shock absorber. By providing a longitudinal beam connecting plate at the rear end of the rear wheelhouse body, and a cavity is formed by enclosing the longitudinal beam connecting plate, the rear longitudinal beam, the rear wheelhouse body and the rear floor connecting plate, the mounting stiffness can be effectively improved. The force transmitted by the shock absorber to the rear wheelhouse body and the rear longitudinal beam is dispersed at the longitudinal beam connecting plate and transmitted to the rear floor connecting plate and the vehicle side panel, enabling the force to be transmitted over a larger range, dispersing the stress at the shock absorber mounting points, enhancing the stiffness of the shock absorber mounting points, reducing the vehicle body vibration and increasing the riding comfort.

[0006] Optionally, the longitudinal beam connecting plate includes a plurality of base plates perpendicular to the rear longitudinal beam, and each of the base plates encloses a frame-like structure with one side open. The open side of the frame-like structure faces the rear floor connecting plate.

[0007] Optionally, a first flanging parallel to the side wall or bottom wall of the rear longitudinal beam extends from one end edge of each of the substrates, and the longitudinal beam connecting plate is used to connect with the rear longitudinal beam through the first flanging.

[0008] Optionally, the rear wheel housing body includes an inner rear wheel housing plate, an outer rear wheel housing plate, and a rear connecting plate of the rear wheel housing. The inner rear wheel housing plate and the outer rear wheel housing plate are cooperatively installed. The shock absorber mounting structure is installed on the inner rear wheel housing plate. The longitudinal beam connecting plate is arranged between the rear end of the outer rear wheel housing plate and the rear connecting plate of the rear wheel housing. The outer rear wheel housing plate and the rear connecting plate of the rear wheel housing are used to connect with the automobile side wall panel.

[0009] Optionally, a second flanging parallel to the rear connecting plate of the rear wheel housing extends from one end edge of each of the substrates away from the rear longitudinal beam, and the longitudinal beam connecting plate is connected with the rear connecting plate of the rear wheel housing through the second flanging.

[0010] Optionally, one of the two substrates on the opening side is provided with an extension section, and the extension section is matched with the outer surface shape of the inner rear wheel housing plate. The longitudinal beam connecting plate is connected with the inner rear wheel housing plate through the extension section.

[0011] Optionally, a third flanging parallel to the rear floor connecting plate extends from one of the two substrates on the opening side, and the longitudinal beam connecting plate is connected with the rear floor connecting plate through the third flanging.

[0012] In a second aspect, the present invention provides a vehicle body, including the above-mentioned rear wheel housing assembly and rear longitudinal beam, and the rear wheel housing assembly is connected with the rear longitudinal beam. The advantages of the vehicle body compared with the prior art are the same as those of the above-mentioned rear wheel housing assembly, and will not be repeated here.

[0013] Optionally, the rear longitudinal beam includes a front section of the rear longitudinal beam, a middle section of the rear longitudinal beam, and a rear section of the rear longitudinal beam that are sequentially connected. The front section of the rear longitudinal beam is connected with the shock absorber mounting structure of the rear wheel housing assembly, and the middle section of the rear longitudinal beam and the rear section of the rear longitudinal beam are connected with the longitudinal beam connecting plate of the rear wheel housing assembly.

[0014] In a third aspect, the present invention provides an automobile, including the above-mentioned vehicle body. The advantages of the automobile compared with the prior art are the same as those of the above-mentioned vehicle body, and will not be repeated here. Description of the Drawings

[0015] Figure 1 is an exploded view of the vehicle body according to an embodiment of the present invention;

[0016] Figure 2 is a structural diagram of the longitudinal beam connecting plate according to an embodiment of the present invention;

[0017] Figure 3 Structural schematic diagram of the vehicle body according to an embodiment of the present invention;

[0018] Figure 4 Enlarged schematic diagram of the installation structure of the longitudinal beam connecting plate according to an embodiment of the present invention;

[0019] Figure 5 Enlarged schematic diagram of the installation structure of the longitudinal beam connecting plate from another perspective according to an embodiment of the present invention.

[0020] Description of reference numerals:

[0021] 1. Longitudinal beam connecting plate; 11. Substrate; 111. First flanging; 112. Second flanging; 113. Extension section; 114. Third flanging; 2. Rear wheelhouse body; 21. Inner panel of rear wheelhouse; 22. Outer panel of rear wheelhouse; 23. Rear connecting plate of rear wheelhouse; 3. Shock absorber installation structure; 31. Installation plate; 32. Reinforcing plate; 4. Rear floor connecting plate; 5. Rear longitudinal beam; 51. Front section of rear longitudinal beam; 52. Middle section of rear longitudinal beam; 53. Rear section of rear longitudinal beam; 6. Automobile side wall panel. Detailed description of the specific implementation mode

[0022] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is provided with reference to the accompanying drawings.

[0023] In the description of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connect", "cooperate" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] In addition, it should also be noted that in the description of the present invention, it should be noted that the terms indicating directions such as "upper", "lower", "front", "rear" in each embodiment are only used to simplify the description of the positional relationship based on the drawings of the specification, and do not represent that the indicated components and devices etc. must operate according to the specific directions and limited operations, methods, and structures in the specification. Such terms indicating directions do not constitute a limitation to the present invention.

[0025] A coordinate system XYZ is established herein, wherein the positive direction of the X-axis represents the front, the negative direction of the X-axis represents the rear, the positive direction of the Y-axis represents the left, the negative direction of the Y-axis represents the right, the positive direction of the Z-axis represents the upper, and the negative direction of the Z-axis represents the lower.

[0026] As Figures 1-3As shown in the figure, an embodiment of the present invention provides a rear wheel housing assembly, which includes a rear wheel housing body 2, a shock absorber mounting structure 3, a rear floor connecting plate 4, and a longitudinal beam connecting plate 1. The shock absorber mounting structure 3 is provided on the rear wheel housing body 2 and is used to connect with the rear longitudinal beam 5. The rear end of the rear wheel housing body 2 is used to connect with the rear longitudinal beam 5 through the longitudinal beam connecting plate 1. The longitudinal beam connecting plate 1 is connected with the rear floor connecting plate 4. A cavity is formed by enclosing the rear wheel housing body 2, the longitudinal beam connecting plate 1, the rear floor connecting plate 4, and the rear longitudinal beam 5. The rear wheel housing body 2 is used to connect with the vehicle side panel 6.

[0027] In this embodiment, the shock absorber mounting structure 3 may include a mounting plate 31 and a reinforcing plate 32. The shock absorber is mounted on the mounting plate 31, and the mounting plate 31 is mounted on the rear wheel housing body 2 through the reinforcing plate 32. The rear wheel housing body 2 is connected with the rear longitudinal beam 5. The shock absorber mounting structure 3 is mounted between the front ends of the rear wheel housing body 2 and the rear longitudinal beam 5, and the rear ends of the rear wheel housing body 2 and the rear longitudinal beam 5 are connected through the longitudinal beam connecting plate 1.

[0028] By adding a longitudinal beam connecting plate 1 at the rear part of the rear wheel housing body 2, a cavity is formed among the longitudinal beam connecting plate 1, the rear wheel housing body 2, the rear floor connecting plate 4, and the rear longitudinal beam 5. While improving the installation stiffness among components, lightweight is achieved, so that the force transmitted by the shock absorber to the rear wheel housing body 2 and the rear longitudinal beam 5 can be dispersed to the surrounding structures at the longitudinal beam connecting plate 1, such as the rear floor connecting plate 4 and the vehicle side panel 6, increasing the force transmission range, enabling the stress at the shock absorber mounting point to be dispersed, improving the stiffness in all directions at the shock absorber mounting point, especially the Z-direction stiffness, and avoiding the instability of the vehicle body structure due to stress concentration, resulting in better ride comfort.

[0029] Here, chassis part mounting points can be provided on the longitudinal beam connecting plate 1 to install and fix relevant parts.

[0030] It should be noted that the rear wheel housing assembly described in the embodiment of the present invention can be a left rear wheel housing assembly of a vehicle or a right rear wheel housing assembly of a vehicle. The structures of the left rear wheel housing assembly and the right rear wheel housing assembly of a vehicle are basically the same. Considering the limitations of the left and right side structures of the vehicle, there may be slight differences in the specific dimensions of some components between the left rear wheel housing assembly and the right rear wheel housing assembly of a vehicle. The following rear wheel housing assembly will be described by taking the left rear wheel housing assembly as an example.

[0031] As Figure 2 、 4 、5 shows, optionally, the longitudinal beam connecting plate 1 includes a plurality of substrate plates 11 perpendicular to the rear longitudinal beam 5. Each of the substrate plates 11 encloses a frame-like structure with one side open, and the open side of the frame-like structure faces the rear floor connecting plate 4.

[0032] In this embodiment, three substrates 11 may be provided. The three substrates 11 are sequentially connected to form a frame structure with an upward opening; the rear longitudinal beam 5 extends in the front-rear direction, and the substrate 11 is disposed inside the rear longitudinal beam 5 and extends in the left-right direction. The substrate 11 here is not completely a flat plate and may slightly have a certain bending curvature.

[0033] The opening (i.e., the upper end) of the longitudinal beam connecting plate 1 is covered by the rear floor connecting plate 4. The left end of the longitudinal beam connecting plate 1 is connected to the rear wheel housing body 2 to block the left side of the cavity through the rear wheel housing body 2, and the right end of the longitudinal beam connecting plate 1 is connected to the rear longitudinal beam 5 to block the right side of the cavity through the rear longitudinal beam 5, thereby enclosing a closed cavity.

[0034] As Figure 2 、 5 shown, optionally, at one end edge of each substrate 11, a first flanging 111 parallel to the side wall or bottom wall of the rear longitudinal beam 5 extends, and the longitudinal beam connecting plate 1 is used to connect to the rear longitudinal beam 5 through the first flanging 111.

[0035] In this embodiment, the three substrates 11 include a front substrate, a rear substrate, and a bottom substrate. The right ends of the front substrate, the rear substrate, and the bottom substrate are respectively folded to form a first flanging parallel to the left side wall of the rear longitudinal beam. Of course, in some embodiments, the right end of the bottom substrate may directly extend to the right to form a first flanging parallel to the bottom side wall of the rear longitudinal beam.

[0036] Here, the longitudinal beam connecting plate 1 and the rear longitudinal beam 5 are lap-welded and fixed. Each substrate 11 is welded to different positions of the rear longitudinal beam 5, with multiple-point fixation, and the connection stability is better.

[0037] As Figure 1 、 4 、5 shown, optionally, the rear wheel housing body 2 includes a rear wheel housing inner plate 21, a rear wheel housing outer plate 22, and a rear wheel housing rear connecting plate 23. The rear wheel housing inner plate 21 and the rear wheel housing outer plate 22 are cooperatively installed, the shock absorber mounting structure 3 is installed on the rear wheel housing inner plate 21, the longitudinal beam connecting plate 1 is disposed between the rear end of the rear wheel housing outer plate 22 and the rear wheel housing rear connecting plate 23, and the rear wheel housing outer plate 22 and the rear wheel housing rear connecting plate 23 are used to connect to the vehicle side wall panel 6.

[0038] In this embodiment, the rear wheel housing inner plate 21 and the rear wheel housing outer plate 22 may be shell-like structures, and they cooperate to form an installation space for installing the rear wheel. The rear end of the rear wheel housing outer plate 22 is adhesively connected to the rear wheel housing rear connecting plate 23. The contour of the rear wheel housing outer plate 22 is adapted to the vehicle side wall panel 6 to achieve the matching installation of the rear wheel housing outer plate 22 and the vehicle side wall panel 6.

[0039] As Figure 2 、 5 shown, optionally, at one end edge of each of the substrates 11 away from the rear longitudinal beam 5, a second flanging 112 parallel to the rear wheel housing rear connecting plate 23 extends, and the longitudinal beam connecting plate 1 is connected to the rear wheel housing rear connecting plate 23 through the second flanging 112.

[0040] In this embodiment, the second flanging 112 extends at the left end of the substrate 11 to be in fitting connection with the rear wheel housing rear connecting plate 23, and the longitudinal beam connecting plate 1 is fixedly welded to the rear wheel housing rear connecting plate 23. The second flangings 112 are respectively formed at the left ends of the substrates 11, and through multi-point fixing, the connection stability between the longitudinal beam connecting plate 1 and the rear wheel housing rear connecting plate 23 is improved.

[0041] The second flanging 112 at the left end of the front substrate is in contact with the front side wall of the rear wheel housing rear connecting plate 23, and the second flangings at the left ends of the rear substrate and the bottom substrate are in contact with the right side wall of the rear wheel housing rear connecting plate 23. The bending directions and angles of the second flangings 112 can be flexibly set according to the shapes of the side walls of the rear wheel housing rear connecting plate 23.

[0042] As Figure 2 、 4 shown, optionally, one of the two substrates 11 on the opening side is provided with an extension section 113, and the extension section 113 is matched with the outer surface shape of the rear wheel housing inner plate 21, and the longitudinal beam connecting plate 1 is connected to the rear wheel housing inner plate 21 through the extension section 113.

[0043] In this embodiment, the upper end of the front substrate extends upward to form the extension section 113, and the shape of the extension section 113 is matched with the outer side wall shape of the rear wheel housing inner plate 21 to realize the matching installation of the two. After the longitudinal beam connecting plate 1 is in contact connection with the rear wheel housing inner plate 21, it is then fixedly welded.

[0044] Here, the extension section 113 can be arc-shaped or straight plate-shaped, and is set according to the shape of the rear wheel housing inner plate 21 at the connection position.

[0045] As Figure 2 、 5 shown, optionally, one of the two substrates 11 on the opening side extends a third flanging 114 parallel to the rear floor connecting plate 4, and the longitudinal beam connecting plate 1 is connected to the rear floor connecting plate 4 through the third flanging 114.

[0046] In this embodiment, the upper end of the rear substrate is folded along the front-rear direction to form a third flanging 114. After the third flanging 114 of the longitudinal beam connecting plate 1 is fitted with the rear floor connecting plate 4, they are welded and fixed. The third flanging 114 can extend to the right to be fitted with the top edge of the rear longitudinal beam 5.

[0047] As Figure 1 , 3 shown, another embodiment of the present invention is to propose a vehicle body, including the above-mentioned rear wheelhouse assembly and the rear longitudinal beam 5, and the rear wheelhouse assembly is connected to the rear longitudinal beam 5. The advantages of the vehicle body in this embodiment compared with the prior art are the same as those of the above-mentioned rear wheelhouse assembly, and will not be repeated here.

[0048] As Figure 1 shown, optionally, the rear longitudinal beam 5 includes a rear longitudinal beam front section 51, a rear longitudinal beam middle section 52 and a rear longitudinal beam rear section 53 that are connected in sequence. The rear longitudinal beam front section 51 is connected to the shock absorber mounting structure 3 of the rear wheelhouse assembly, and the rear longitudinal beam middle section 52 and the rear longitudinal beam rear section 53 are connected to the longitudinal beam connecting plate 1 of the rear wheelhouse assembly.

[0049] In this embodiment, the rear longitudinal beam front section 51, the rear longitudinal beam middle section 52 and the rear longitudinal beam rear section 53 are separately formed and then welded and fixed, which is convenient for processing. Of course, in some embodiments, the rear longitudinal beam 5 can also be made by an integral forming process.

[0050] The force on the shock absorber mounting structure 3 is transmitted from the rear longitudinal beam front section 51 through the rear longitudinal beam middle section 52 to the rear longitudinal beam rear section 53, and is dispersed and transmitted at the longitudinal beam connecting plate 1 between the rear longitudinal beam middle section 52 and the rear longitudinal beam rear section 53.

[0051] Another embodiment of the present invention is to propose a vehicle, including the above-mentioned vehicle body. The advantages of this embodiment compared with the prior art are the same as those of the above-mentioned vehicle body, and will not be repeated here.

[0052] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A rear wheel cover assembly, characterized in that, It includes a rear wheel housing body (2), a shock absorber mounting structure (3), a rear floor connecting plate (4) and a longitudinal beam connecting plate (1). The shock absorber mounting structure (3) is provided on the rear wheel housing body (2) and is used to connect with the rear longitudinal beam (5). The rear end of the rear wheel housing body (2) is used to connect with the rear longitudinal beam (5) through the longitudinal beam connecting plate (1). The longitudinal beam connecting plate (1) is connected with the rear floor connecting plate (4). A cavity is formed by enclosing the rear wheel housing body (2), the longitudinal beam connecting plate (1), the rear floor connecting plate (4) and the rear longitudinal beam (5). The rear wheel housing body (2) is used to connect with the vehicle side panel (6). The longitudinal beam connecting plate (1) includes a plurality of base plates (11) perpendicular to the rear longitudinal beam (5). Each of the base plates (11) encloses to form a frame-like structure with one side open, and the open side of the frame-like structure faces the rear floor connecting plate (4). One of the two base plates (11) on the open side extends a third flanging (114) parallel to the rear floor connecting plate (4), and the longitudinal beam connecting plate (1) is connected with the rear floor connecting plate (4) through the third flanging (114).

2. The rear wheel housing assembly according to claim 1, characterized in that, One end edge of each of the base plates (11) extends a first flanging (111) parallel to the side wall or bottom wall of the rear longitudinal beam (5), and the longitudinal beam connecting plate (1) is used to connect with the rear longitudinal beam (5) through the first flanging (111).

3. The rear wheel housing assembly according to claim 1, characterized in that, The rear wheel housing body (2) includes a rear wheel housing inner plate (21), a rear wheel housing outer plate (22) and a rear wheel housing rear connecting plate (23). The rear wheel housing inner plate (21) and the rear wheel housing outer plate (22) are fitted and installed. The shock absorber mounting structure (3) is installed on the rear wheel housing inner plate (21). The longitudinal beam connecting plate (1) is arranged between the rear end of the rear wheel housing outer plate (22) and the rear wheel housing rear connecting plate (23). The rear wheel housing outer plate (22) and the rear wheel housing rear connecting plate (23) are used to connect with the vehicle side panel (6).

4. The rear wheel housing assembly according to claim 3, wherein, One end edge of each of the base plates (11) away from the rear longitudinal beam (5) extends a second flanging (112) parallel to the rear wheel housing rear connecting plate (23), and the longitudinal beam connecting plate (1) is connected with the rear wheel housing rear connecting plate (23) through the second flanging (112).

5. The rear wheel housing assembly according to claim 3, wherein One of the two base plates (11) on the open side is provided with an extension section (113), and the extension section (113) matches the outer surface shape of the rear wheel housing inner plate (21). The longitudinal beam connecting plate (1) is connected with the rear wheel housing inner plate (21) through the extension section (113).

6. A vehicle body, characterized in that, It includes the rear wheel housing assembly as described in any one of claims 1-5 and the rear longitudinal beam (5), and the rear wheel housing assembly is connected with the rear longitudinal beam (5).

7. The vehicle body according to claim 6, characterized in that The rear longitudinal beam (5) includes a front section of the rear longitudinal beam (51), a middle section of the rear longitudinal beam (52), and a rear section of the rear longitudinal beam (53) that are connected in sequence. The front section of the rear longitudinal beam (51) is connected to the shock absorber mounting structure (3) of the rear wheel housing assembly, and the middle section of the rear longitudinal beam (52) and the rear section of the rear longitudinal beam (53) are connected to the longitudinal beam connecting plate (1) of the rear wheel housing assembly.

8. A vehicle, characterized in that, Comprising a vehicle body according to any one of claims 6-7.

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