Rear wheel arch inner panel assembly and vehicle

Abstract

This invention provides a rear wheel arch inner panel assembly and a vehicle. The rear wheel arch inner panel assembly includes a rear wheel arch inner panel, a mounting bracket, and a rear shock absorber support and a rear shock absorber support plate disposed on the side of the rear wheel arch inner panel facing outwards. Along the longitudinal direction of the vehicle, the front end of the mounting bracket is connected to the rear wheel arch inner panel, and the mounting bracket has mounting points for vehicle-mounted electrical components. A cavity is formed between the rear shock absorber support and the rear wheel arch inner panel, and the rear shock absorber support plate is disposed within the cavity and connected between the rear wheel arch inner panel and the rear shock absorber support. The rear wheel arch inner panel assembly of this invention, by providing a mounting bracket for mounting electrical components on the rear wheel arch inner panel, provides installation space for the electrical components on the vehicle, thereby facilitating the arrangement of electrical components on the vehicle body. Furthermore, the cavity formed between the rear shock absorber support and the rear wheel arch inner panel, and the placement of the rear shock absorber support plate, helps improve the stability of the mounting bracket and the electrical components.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a rear wheel arch inner panel assembly. Furthermore, this invention also relates to a vehicle equipped with this rear wheel arch inner panel assembly. Background Technology

[0002] For rear wheel arch panels, which are significantly affected by tire vibration, shock absorbers are often installed on the inner panel to attenuate vibration energy during transmission. However, during vehicle operation, the mounting points of the rear shock absorbers experience considerable stress, which can easily lead to problems such as sheet metal cracking and deformation at the mounting points, thus affecting the normal operation of the rear shock absorbers. Furthermore, due to the rapid advancement of automotive intelligence, a large number of intelligent electrical components have been added, requiring corresponding installation space within the vehicle body. The existing rear wheel arch inner panel structure is relatively simple, providing limited space for the installation of these electrical components, making it inconvenient for their placement on the vehicle body. Summary of the Invention

[0003] In view of this, the present invention aims to provide a rear wheel arch inner panel assembly to facilitate the arrangement of electrical components.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A rear wheel arch inner panel assembly includes a rear wheel arch inner panel, a mounting bracket, and a rear shock absorber support and a shock absorber support plate disposed on the side of the rear wheel arch inner panel facing outwards from the vehicle.

[0006] Along the front-rear direction of the vehicle, the front end of the mounting bracket is connected to the inner panel of the rear wheel arch, the rear end of the mounting bracket extends rearward and is connected to the D-pillar, and the mounting bracket is provided with mounting points for vehicle electrical components.

[0007] A cavity is formed between the rear shock absorber support and the inner plate of the rear wheel arch. The rear shock absorber support plate is disposed in the cavity and connected between the inner plate of the rear wheel arch and the rear shock absorber support.

[0008] Furthermore, the shock absorber support plate has a protruding portion that protrudes toward the rear shock absorber support; the protruding portion and the rear wheel arch inner plate and / or the mounting bracket form a first cavity, and the first cavity extends along the vertical direction of the vehicle to the top of the rear wheel arch inner plate.

[0009] Furthermore, it also includes a support reinforcement plate, which is connected between the rear shock absorber support and the inner plate of the rear wheel arch;

[0010] The support reinforcement plate has a bulging portion that bulges out into the inner plate of the rear wheel arch, and the bulging portion and the rear shock absorber support form a second cavity.

[0011] Furthermore, the second sub-cavity is located below the first sub-cavity, and the second sub-cavity partially overlaps with the first sub-cavity in the left-right direction of the vehicle.

[0012] Furthermore, the bent portion of the bulge is provided with reinforcing ribs; and / or,

[0013] The edge of the support reinforcement plate is provided with a first flange that folds outward toward the second sub-cavity, and the support reinforcement plate is connected to the rear shock absorber support through the first flange.

[0014] Furthermore, it also includes a reinforcing plate connected to the support reinforcing plate;

[0015] The reinforcing plate is bent and has a groove, and the bulge is located in the groove.

[0016] Furthermore, the reinforcing plate is connected to the side of the support reinforcement plate facing the inner plate of the rear wheel arch, and the reinforcing plate and the support reinforcement plate are simultaneously connected to the shock absorber support plate.

[0017] Furthermore, the mounting bracket is a flat plate structure extending along the front-rear direction of the vehicle;

[0018] The top of the inner plate of the rear wheel arch is formed with a notch, the front end of the mounting bracket blocks the notch, and the top of the rear shock absorber support is connected to the mounting bracket.

[0019] Furthermore, the inner plate of the rear wheel arch is provided with reinforcing protrusions; and / or,

[0020] The mounting bracket has a second flange that folds upwards at its edge.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The rear wheel arch inner panel assembly of this invention provides mounting space for electrical components by providing a mounting bracket on the inner panel, thus facilitating their placement on the vehicle body. Furthermore, the cavity formed between the rear shock absorber support and the rear wheel arch inner panel enhances the structural strength of the rear shock absorber mounting location. The rear shock absorber support plate further supports the shock absorber support, ensuring the installation strength of the shock absorber while also increasing the strength of the rear wheel arch inner panel. This structural strength of the rear wheel arch inner panel enhances the stability of the mounting bracket and electrical components.

[0023] Furthermore, by forming a first cavity and extending the first cavity to the top of the rear wheel cover inner panel, the structural strength of the top of the rear wheel cover inner panel is improved, and the mounting bracket can be supported, thereby improving the structural strength of the connection between the mounting bracket and the rear wheel cover inner panel and thus improving the installation stability of electrical components.

[0024] In addition, by forming a second cavity between the support reinforcement plate and the rear shock absorber support, the high structural strength of the cavity can be utilized to improve the overall stiffness of the rear shock absorber mounting point, thereby ensuring the reliability of the rear shock absorber installation.

[0025] Secondly, by placing the second sub-cavity below the first sub-cavity and partially overlapping the first and second sub-cavities in the left-right direction of the vehicle, it is beneficial to improve the structural strength of the rear shock absorber support, while also improving the structural strength of the rear wheel arch inner panel assembly in the vertical direction of the vehicle, thus meeting the corresponding performance requirements and improving the stability of the mounting bracket and electrical components.

[0026] Furthermore, by installing reinforcing plates, the support reinforcement plates can be structurally strengthened, thereby further improving the structural rigidity of the rear shock absorber mounting position. The installation of reinforcing plates also helps to reduce the weight of the vehicle body.

[0027] In addition, by connecting the reinforcing plate and the support plate to the shock absorber support plate, the shock absorber support plate can provide better support for the rear shock absorber mounting point, while the force at the rear shock absorber mounting point can be transmitted to the shock absorber support plate through the reinforcing plate and the support plate, which helps to improve the force transmission effect.

[0028] In addition, by forming a notch at the top of the rear wheel arch inner panel and sealing the notch at the front end of the mounting bracket, the weight of the rear wheel arch inner panel assembly can be reduced. This also allows the mounting bracket and the rear wheel arch inner panel to have a larger connection area, which helps to ensure the connection strength between the mounting bracket and the rear wheel arch inner panel. At the same time, the structural strength of the rear shock absorber mounting position can be used to improve the installation stability of the mounting bracket and electrical components.

[0029] Another object of the present invention is to provide a vehicle having the rear wheel arch inner panel assembly as described above.

[0030] The vehicle described in this invention, by having the rear wheel arch inner panel assembly as described above, facilitates the arrangement of electrical components on the vehicle body, simplifies the arrangement structure of various parts on the vehicle body, and facilitates the lightweighting and integration of the vehicle body. Attached Figure Description

[0031] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0032] Figure 1 This is a schematic diagram of the rear wheel arch inner panel assembly from one perspective according to an embodiment of the present invention;

[0033] Figure 2 This is a structural schematic diagram of the rear wheel arch inner panel assembly from another perspective according to an embodiment of the present invention;

[0034] Figure 3 This is a partial structural schematic diagram of the rear wheel arch inner panel assembly according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the connection structure of the rear wheel arch inner plate, mounting bracket, and shock absorber support plate according to an embodiment of the present invention.

[0036] Figure 5 This is a front view of the rear wheel arch inner panel assembly according to an embodiment of the present invention;

[0037] Figure 6 for Figure 5 A cross-sectional view along the AA direction;

[0038] Figure 7 This is a schematic diagram of the connection structure of the rear shock absorber support, support reinforcement plate and reinforcement plate according to an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the connection structure of the rear shock absorber support and the support reinforcement plate according to an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the reinforcing plate according to an embodiment of the present invention;

[0041] Figure 10 This is a schematic diagram of the structure of the rear wheel arch inner plate and shock absorber support plate according to an embodiment of the present invention;

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Rear wheel arch inner plate; 101. Reinforcing protrusion; 2. Mounting bracket; 201. Second flange; 3. Shock absorber support plate; 301. Protruding part; 4. Rear shock absorber support; 401. Front reinforcement part; 402. Rear reinforcement part; 5. Cavity; 6. First sub-cavity; 7. Support reinforcement plate; 701. Bulging part; 7011. Reinforcing rib; 702. First flange; 8. Second sub-cavity; 9. Reinforcing plate; 901. Groove; 10. Notch; 11. Mounting hole; 12. First through hole; 13. Second through hole. Detailed Implementation

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0045] In the description of this invention, it should be noted that the directional terms used in this embodiment, such as "up," "down," "left," "right," "front," and "rear," are defined based on the vertical, horizontal, and longitudinal directions of the vehicle. Specifically, the vertical direction of the vehicle is the height direction, the longitudinal direction is the length direction, and the horizontal direction is the width direction.

[0046] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0047] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] Example 1

[0049] This embodiment relates to a rear wheel arch inner panel assembly. The assembly comprises a rear wheel arch inner panel 1, a mounting bracket 2, and a rear shock absorber support 4 and a shock absorber support plate 3 disposed on the side of the rear wheel arch inner panel 1 facing outwards. Along the longitudinal direction of the vehicle, the front end of the mounting bracket 2 is connected to the rear wheel arch inner panel 1, and the rear end of the mounting bracket 2 extends rearward and connects to the D-pillar. The mounting bracket 2 is provided with mounting points for vehicle electrical components. A cavity 5 is formed between the rear shock absorber support 4 and the rear wheel arch inner panel 1. The rear shock absorber support plate 3 is disposed within the cavity 5 and connected between the rear wheel arch inner panel 1 and the rear shock absorber support 4.

[0050] Understandably, by providing a mounting bracket 2 for installing electrical components on the inner rear wheel arch panel 1, installation space can be provided for the electrical components to be installed on the vehicle, thus facilitating the arrangement of the electrical components on the vehicle body. Furthermore, by forming a cavity 5 between the rear shock absorber support 4 and the inner rear wheel arch panel 1, and by connecting the rear shock absorber support plate 3 between the inner rear wheel arch panel 1 and the rear shock absorber support 4, the rear shock absorber support 4 can be supported, ensuring the installation strength of the rear shock absorber, while also improving the strength of the inner rear wheel arch panel 1. In turn, the structural strength of the inner rear wheel arch panel 1 can be used to improve the stability of the mounting bracket 2 and the electrical components.

[0051] It should be noted that the mounting points for vehicle-mounted electrical components on the mounting bracket 2 can be structures commonly used in the prior art for mounting electrical components, such as mounting holes or mounting slots on the mounting bracket 2.

[0052] Based on the above overall description, an exemplary structure of this embodiment is as follows: Figures 1 to 10 As shown in the figure. Furthermore, as a preferred embodiment, as... Figure 4 and Figure 6 and Figure 10 As shown in the figure, in this embodiment, the shock absorber support plate 3 has a protruding portion 301 that protrudes towards the rear shock absorber support 4. The protruding portion 301, the rear wheel arch inner plate 1, and the mounting bracket 2 form a first cavity 6, and the first cavity 6 extends along the vertical direction of the vehicle to the top of the rear wheel arch inner plate 1.

[0053] It is understandable that by forming a first cavity 6 between the protruding portion 301 and the rear wheel cover inner plate 1 and the mounting bracket 2, and extending the first cavity 6 to the top of the rear wheel cover inner plate 1, the structural strength of the top of the rear wheel cover inner plate 1 can be improved by utilizing the high structural strength of the cavity, and the mounting bracket 2 can be supported, thereby improving the structural strength of the connection between the mounting bracket 2 and the rear wheel cover inner plate 1, and thus improving the installation stability of the electrical components.

[0054] Of course, the above-mentioned arrangement of forming a first cavity 6 between the protruding portion 301 and the inner plate of the rear wheel cover 1 and the mounting bracket 2 is determined by the structure of the inner plate of the rear wheel cover 1 and the mounting bracket 2. In addition, when the structure of the inner plate of the rear wheel cover 1 and the mounting bracket 2 is changed, the first cavity 6 may be formed only between the protruding portion 301 and the inner plate of the rear wheel cover 1, or between the protruding portion 301 and the mounting bracket 2.

[0055] As a preferred implementation method, such as Figure 2 and Figure 3 and Figure 8 As shown, the rear wheel arch inner plate assembly of this embodiment also includes a support reinforcing plate 7, which is connected between the rear shock absorber support 4 and the rear wheel arch inner plate 1. The support reinforcing plate 7 has a bulge portion 701 protruding into the rear wheel arch inner plate 1, and a second cavity 8 is formed between the bulge portion 701 and the rear shock absorber support 4. This arrangement facilitates the use of the high structural strength of the cavity to improve the overall rigidity of the rear shock absorber mounting point, thereby ensuring the reliability of the rear shock absorber installation.

[0056] And as a preferred option, combined with Figure 5 and Figure 6 As shown in the diagram, in this embodiment, the second sub-cavity 8 is located below the first sub-cavity 6, and the second sub-cavity 8 and the first sub-cavity 6 partially overlap in the left-right direction of the vehicle. It should be noted that the aforementioned partial overlap between the second sub-cavity 8 and the first sub-cavity 6 in the left-right direction of the vehicle specifically means that the projections of the first sub-cavity 6 and the second sub-cavity 8 in the left-right direction of the vehicle have overlapping areas.

[0057] By placing the second sub-cavity 8 below the first sub-cavity 6 and making the first sub-cavity 6 and the second sub-cavity 8 partially overlap in the left-right direction of the vehicle, it is beneficial to improve the structural strength of the rear shock absorber support 4, and at the same time, it can also improve the structural strength of the rear wheel arch inner plate assembly in the vertical direction of the vehicle, meet the corresponding performance index requirements, and thus improve the stability of the mounting bracket and electrical components.

[0058] As a preferred implementation method, such as Figure 7 and Figure 8 As shown, the bent portion of the bulge 701 is provided with reinforcing ribs 7011, and the edge of the support reinforcing plate 7 is provided with a first flange 702 that folds outward toward the second sub-cavity 8. The support reinforcing plate 7 is connected to the rear shock absorber support 4 through the first flange 702. It can be understood that by providing reinforcing ribs 7011 at the bent portion of the bulge 701, the structural strength of the bulge 701 is improved, thereby improving the structural strength of the support reinforcing plate 7 and ensuring the installation firmness of the rear shock absorber. Furthermore, by providing the first flange 702 at the edge of the support reinforcing plate 7, the connection area between the support reinforcing plate 7 and the rear shock absorber support 4 is increased, thereby ensuring the connection strength between the support reinforcing plate 7 and the rear shock absorber support 4.

[0059] Of course, in this embodiment, the presence of a reinforcing rib 7011 at the bend of the bulging portion 701 and a first flange 702 folded outward toward the second cavity 8 at the edge of the support reinforcing plate 7 is merely a preferred implementation. Alternatively, it is also possible to provide a reinforcing rib 7011 only at the bend of the bulging portion 701 without providing the first flange 702, or to provide a first flange 702 folded outward toward the second cavity 8 at the edge of the support reinforcing plate 7 without providing the reinforcing rib 7011.

[0060] As a preferred implementation method, such as Figure 7 and Figure 9 As shown, the rear wheel arch inner panel assembly of this embodiment also includes a reinforcing plate 9 connected to the support reinforcing plate 7. The reinforcing plate 9 is bent and forms a groove 901, with a bulge 701 located within the groove 901. By providing the reinforcing plate 9, the support reinforcing plate 7 can be structurally strengthened, thereby further improving the structural rigidity of the rear shock absorber mounting position. Furthermore, the reinforcing plate 9 forming the groove 901 and the bulge 701 located within the groove 901 facilitates the installation of the reinforcing plate 9 while ensuring its reinforcing effect.

[0061] By providing a reinforcing plate 9, the strength requirements of the rear shock absorber mounting point can be met by increasing the thickness of the reinforcing plate 9. This allows for a corresponding reduction in the thickness of the rear shock absorber support 4 and the support reinforcing plate 7, thus meeting the strength requirements while also reducing the vehicle's weight.

[0062] In a preferred embodiment, the reinforcing plate 9 is connected to the side of the support reinforcing plate 7 facing the inner plate 1 of the rear wheel arch, and both the reinforcing plate 9 and the support reinforcing plate 7 are connected to the shock absorber support plate 3. It is understood that by connecting the reinforcing plate 9 and the support reinforcing plate 7 to the shock absorber support plate 3 simultaneously, the shock absorber support plate 3 can provide better support for the rear shock absorber mounting point, thereby ensuring the structural rigidity of the rear shock absorber mounting position. Furthermore, the force at the rear shock absorber mounting point can be transmitted to the shock absorber support plate 3 through the reinforcing plate 9 and the support reinforcing plate 7, which helps to improve the force transmission effect.

[0063] In addition, such as Figure 1 and Figure 10 As shown, the mounting bracket 2 in this embodiment is a flat plate structure extending along the longitudinal direction of the vehicle. A notch 10 is formed at the top of the rear wheel arch inner plate 1, the front end of the mounting bracket 2 seals the notch 10, and the top of the rear shock absorber support 4 is connected to the mounting bracket 2. This arrangement helps to reduce the weight of the rear wheel arch inner plate assembly and allows for a larger connection area between the mounting bracket 2 and the rear wheel arch inner plate 1, ensuring the connection strength between them. Simultaneously, the structural strength of the rear shock absorber mounting position enhances the installation stability of the mounting bracket 2 and electrical components. At this time, the aforementioned first cavity 6 is formed between the rear shock absorber support plate 3, the mounting bracket 2, and the rear wheel arch inner plate 1.

[0064] Of course, the above-mentioned method of forming a notch 10 at the top of the rear wheel arch inner plate 1 and sealing the notch 10 at the front end of the mounting bracket 2 is only a preferred embodiment. Alternatively, the notch 10 may not be provided at the top of the rear wheel arch inner plate 1, in which case the front ends of the mounting bracket 2 can be connected to the top or rear end of the rear wheel arch inner plate 1. In this case, the first cavity 6 can be formed between the rear shock absorber support and the rear wheel arch inner plate 1.

[0065] Preferably, in this embodiment, a reinforcing protrusion 101 is provided on the inner plate 1 of the rear wheel arch, and a second flange 201 that folds upward is provided on the edge of the mounting bracket 2. Figure 10 As shown, a reinforcing protrusion 101 is provided at the front end of the rear wheel arch inner panel 1 to enhance the structural strength of the front end of the rear wheel arch inner panel 1. In addition, a second flange 201 is provided on the side of the mounting bracket 2 facing outwards from the vehicle, which can enhance the structural strength of the mounting bracket 2 and also make the top of the rear wheel arch inner panel assembly facing outwards from the vehicle flat and aesthetically pleasing.

[0066] In addition, in specific implementation, to facilitate the installation of the rear shock absorber, a rear shock absorber mounting hole 11 is provided on the rear shock absorber support 4 for installing the rear shock absorber, and the rear shock absorber mounting hole 11 is also provided through the support reinforcement plate 7 and the supplementary reinforcement plate 9. Furthermore, a front reinforcement part 401 and a rear reinforcement part 402 arching outwards are provided below the rear shock absorber support 4. The front reinforcement part 401 and the rear reinforcement part 402 are arranged at intervals along the front-rear direction of the whole vehicle, and a cavity is formed between the front reinforcement part 401 and the rear reinforcement part 402 and the inner plate 1 of the rear wheel arch.

[0067] It should also be noted that in this embodiment, all components can be connected by welding methods such as spot welding. Furthermore, to ensure the connection effect, a first through hole 12 can be provided on the rear shock absorber support 4 at a position corresponding to that on the shock absorber support plate 3, so as to facilitate welding of the rear shock absorber support 4 and the shock absorber support plate 3 at the first through hole 12. In addition, a second through hole 13 can be provided on the support reinforcing plate 7 at a position corresponding to that on the shock absorber support plate 3, and the second through hole 13 penetrates the reinforcing plate 9, so as to facilitate welding of the support reinforcing plate 7, the reinforcing plate 9, and the shock absorber support plate 3 through the second through hole 13.

[0068] The rear wheel arch inner panel assembly of this embodiment, by providing a mounting bracket 2 and mounting points for vehicle electrical components on the mounting bracket 2, provides installation space for the electrical components, thereby facilitating their placement on the vehicle body. Furthermore, by providing a shock absorber support plate 3 and a support reinforcement plate 7, a first cavity 6 is formed between the shock absorber support plate 3 and the rear wheel arch inner panel 1 and the mounting bracket 2, and a second cavity 8 is formed between the support reinforcement plate 7 and the rear shock absorber support 4. The first cavity 6 and the second cavity 8 partially overlap in the left-right direction of the vehicle, which helps ensure the rigidity of the rear shock absorber mounting position and improves the structural strength of the rear wheel arch inner panel assembly. This structural strength of the rear wheel arch inner panel assembly further enhances the stability of the mounting bracket 2 and the electrical components.

[0069] Example 2

[0070] This embodiment relates to a vehicle, and the vehicle is equipped with the rear wheel arch inner panel assembly of Embodiment 1.

[0071] The vehicle in this embodiment, by having the rear wheel arch inner panel assembly of Embodiment 1, facilitates the arrangement of electrical components on the vehicle body, simplifies the arrangement structure of various parts on the vehicle body, and facilitates the lightweighting and integration of the vehicle body.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rear wheel arch inner panel assembly, characterized in that: Includes a rear wheel arch inner panel (1), a mounting bracket (2), and a rear shock absorber support (4) and a shock absorber support plate (3) located on the side of the rear wheel arch inner panel (1) facing outwards from the vehicle. Along the front-rear direction of the vehicle, the front end of the mounting bracket (2) is connected to the inner panel (1) of the rear wheel arch, the rear end of the mounting bracket (2) extends rearward and is connected to the D-pillar, and the mounting bracket (2) is provided with mounting points for vehicle electrical components. A cavity (5) is formed between the rear shock absorber support (4) and the rear wheel cover inner plate (1). The shock absorber support plate (3) is located in the cavity (5) and connected between the rear wheel cover inner plate (1) and the rear shock absorber support (4). The shock absorber support plate (3) has a protruding portion (301) that protrudes toward the rear shock absorber support (4). The protruding portion (301) forms a first cavity (6) between the rear wheel arch inner plate (1) and / or the mounting bracket (2), and the first cavity (6) extends along the vertical direction of the vehicle to the top of the rear wheel arch inner plate (1); It also includes a support reinforcement plate (7), which is connected between the rear shock absorber support (4) and the rear wheel arch inner plate (1); The support reinforcement plate (7) has a bulging portion (701) that bulges out toward the rear wheel cover inner plate (1), and a second sub-cavity (8) is formed between the bulging portion (701) and the rear shock absorber support (4). The second sub-cavity (8) is located below the first sub-cavity (6), and the second sub-cavity (8) and the first sub-cavity (6) partially overlap in the left-right direction of the vehicle.

2. The rear wheel arch inner panel assembly according to claim 1, characterized in that: The bulging portion (701) is provided with reinforcing ribs (7011) at its bent portion; and / or, The edge of the support reinforcement plate (7) is provided with a first flange (702) that folds outward toward the second sub-cavity (8), and the support reinforcement plate (7) is connected to the rear shock absorber support (4) through the first flange (702).

3. The rear wheel arch inner panel assembly according to claim 1, characterized in that: It also includes a reinforcing plate (9) connected to the support reinforcing plate (7); The reinforcing plate (9) is bent and forms a groove (901), and the bulging part (701) is located in the groove (901).

4. The rear wheel arch inner panel assembly according to claim 3, characterized in that: The reinforcing plate (9) is connected to the side of the support reinforcing plate (7) facing the inner plate (1) of the rear wheel cover, and the reinforcing plate (9) and the support reinforcing plate (7) are simultaneously connected to the shock absorber support plate (3).

5. The rear wheel arch inner panel assembly according to any one of claims 1 to 4, characterized in that: The mounting bracket (2) is a flat plate structure extending along the front-rear direction of the vehicle; The top of the inner plate (1) of the rear wheel cover has a notch (10), the front end of the mounting bracket (2) blocks the notch (10), and the top of the rear shock absorber support (4) is connected to the mounting bracket (2).

6. The rear wheel arch inner panel assembly according to claim 5, characterized in that: The inner plate (1) of the rear wheel arch is provided with a reinforcing protrusion (101); and / or, The mounting bracket (2) has an upwardly folded second flange (201) on its edge.

7. A vehicle, characterized in that: The vehicle is provided with the rear wheel arch inner panel assembly as described in any one of claims 1 to 6.

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