Rear floor assembly, vehicle body assembly and vehicle

Abstract

The utility model relates to the technical field of rear floors, and provides a rear floor assembly, a vehicle body assembly and a vehicle, the rear floor assembly comprises a rear longitudinal beam and a shock absorber support, and the rear longitudinal beam is provided with a side wall surface; the shock absorber bracket is provided with a bracket main body part and a connecting arm, a first mounting hole for mounting the shock absorber is formed in the bracket main body part, and a second mounting hole connected with the side wall surface is formed in the connecting arm; wherein the opening direction of the first mounting hole is a first direction, the opening direction of the second mounting hole is a second direction, the second direction is perpendicular to the plane where the side wall face is located, and an included angle is formed between the first direction and the second direction. According to the rear floor assembly, the connection rigidity of the shock absorber in the first direction can be improved, meanwhile, the installation height of the shock absorber relative to the rear longitudinal beam in the first direction can be adjusted by adjusting the size of the shock absorber support or the installation position of the shock absorber support and the rear longitudinal beam, and in other words, the installation requirement of the shock absorber in a low posture can be met more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of rear floors, and particularly provides a rear floor assembly, a vehicle body assembly and a vehicle. Background Art

[0002] In the related art, the rear floor of a vehicle is made of aluminum parts, and its rear wheel housings and the rear floor are integrally cast. The installation points of the rear shock absorbers should be directly set on the rear wheel housings. Specifically, mounting seats should be provided on the rear wheel housings to mount the upper ends of the rear shock absorbers. The vibration kinetic energy of the mounting seats is directly transmitted to the rear wheel housings in the vertical direction. Therefore, the structure of the rear wheel housings needs to be strengthened to prevent deformation caused by the vibration kinetic energy of the mounting seats. At the same time, the vibration kinetic energy of the mounting seats is also transmitted to the rear longitudinal beams of the rear floor, increasing the shear force at the intersection of the two, which is not conducive to the dispersion of stress along the front direction of the rear longitudinal beams, so high requirements are imposed on the stiffness of the rear longitudinal beams.

[0003] However, in the case where the rear floor can be decoupled from the upper vehicle body, there is no corresponding support structure on the rear floor, making the traditional shock absorbers unable to meet the corresponding stiffness requirements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a rear floor assembly, a vehicle body assembly and a vehicle, aiming to solve the problem of insufficient stiffness of the shock absorbers in the existing rear floor assembly.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] In a first aspect, an embodiment of the present application provides a rear floor assembly, including:

[0007] A rear longitudinal beam having a side wall surface;

[0008] A shock absorber bracket including a bracket main body portion and a connecting arm provided on the bracket main body portion. A first mounting hole for mounting a shock absorber is provided on the bracket main body, and a second mounting hole connected to the side wall surface is provided on the connecting arm;

[0009] Wherein, the opening direction of the first mounting hole is a first direction, the opening direction of the second mounting hole is a second direction, the second direction is perpendicular to the plane where the side wall surface is located, and the first direction and the second direction are arranged at an angle.

[0010] Advantages of the present utility model: For the rear floor assembly provided by the present utility model, a shock absorber bracket is arranged between the side wall surface of the rear longitudinal beam and the shock absorber. Specifically, the shock absorber bracket includes a bracket main body portion and a connecting arm. The connecting arm is connected to the side wall surface of the rear longitudinal beam through a connecting member passing through a second mounting hole, and the shock absorber is also connected to the bracket main body portion through a corresponding connecting member passing through a first mounting hole. In this way, the connection stiffness of the shock absorber in the first direction is improved. At the same time, by adding a shock absorber bracket, the installation height of the shock absorber relative to the rear longitudinal beam in the first direction can be adjusted by adjusting the size of the shock absorber bracket or its installation position with respect to the rear longitudinal beam, that is, it is easier to meet the installation requirements of a low-profile shock absorber.

[0011] In some embodiments, the number of the connecting arms is two, and each of the connecting arms is symmetrically arranged on opposite sides of the bracket main body portion with respect to the setting position of the first mounting hole.

[0012] By adopting the above technical solution, the shock absorber bracket is integrally axially symmetrically arranged to increase the connection stability after the shock absorber is installed.

[0013] In some embodiments, the shock absorber bracket further includes a reinforcing rib portion, and the reinforcing rib portion is used to connect the bracket main body portion and the connecting arm.

[0014] By adopting the above technical solution, the connection strength requirement between the connecting arm and the bracket main body portion is further improved by using the reinforcing rib portion.

[0015] In some embodiments, a third mounting hole is formed in the bracket main body portion. The third mounting hole is used for a connecting member to pass through and connect to the upper vehicle body, and the opening direction of the third mounting hole is the same as that of the first mounting hole.

[0016] By adopting the above technical solution, the shock absorber is connected to the upper vehicle body by using a corresponding connecting member to pass through the third mounting hole.

[0017] In some embodiments, the rear longitudinal beam has a receiving cavity, and the rear floor assembly includes a sleeve member. The sleeve member is arranged in the receiving cavity of the rear longitudinal beam along the second direction and corresponds to the second mounting hole.

[0018] By adopting the above technical solution, the connection stability between the shock absorber bracket and the rear longitudinal beam is increased by using the sleeve member.

[0019] In some embodiments, the sleeve member includes a tube body. Opposite ends of the tube body are fixedly connected to the inner wall of the receiving cavity, and the opening of the tube body corresponds to the second mounting hole.

[0020] By adopting the above technical solution, the opposite ends of the pipe body are connected to the inner wall of the accommodating cavity to form connection points with the rear longitudinal beam, so as to meet the connection requirements that the corresponding connecting pieces sequentially pass through the second mounting holes and the openings of the pipe body to connect the shock absorber bracket to the rear longitudinal beam.

[0021] In some embodiments, the rear floor assembly further includes a reinforcing member, and the reinforcing member is disposed in the accommodating cavity and connected to the pipe body.

[0022] By adopting the above technical solution, the use of the reinforcing member is further increased to enhance the connection points between the pipe body and the inner wall of the accommodating cavity, thereby enhancing the connection stability of the pipe body in the accommodating cavity.

[0023] In some embodiments, the reinforcing member includes a main body portion and a flanging portion disposed on the main body portion. The main body portion is connected to the pipe wall of the pipe body, and the flanging portion is connected to the inner wall of the accommodating cavity.

[0024] By adopting the above technical solution, the flanging portion is connected to the inner wall of the accommodating cavity, and the main body portion is connected to the pipe body to enhance the connection stability of the pipe body in the accommodating cavity.

[0025] In some embodiments, the sleeve member includes a block body. The outer side wall of the block body is connected to the inner wall of the accommodating cavity, and a hole structure corresponding to the second mounting hole is formed in the block body.

[0026] By adopting the above technical solution, similarly, the contact area between the block body and the accommodating cavity can be increased, and the corresponding connecting pieces are sequentially passed through the second mounting and the hole structure to connect the shock absorber bracket to the rear longitudinal beam.

[0027] In some embodiments, the rear floor assembly further includes an outer reinforcing plate, and the outer reinforcing plate is disposed on the side wall surface and located between the rear longitudinal beam and the connecting arm.

[0028] By adopting the above technical solution, the use of the outer reinforcing plate can further increase the structural strength of the side wall surface of the rear longitudinal beam to meet the installation requirements of the shock absorber bracket.

[0029] In a second aspect, an embodiment of the present application further provides a vehicle body assembly, including a chemical cabin and the above-mentioned rear floor assembly, and the chemical cabin is connected to the rear longitudinal beam of the rear floor assembly.

[0030] In a third aspect, an embodiment of the present application further provides a vehicle, including the above-mentioned vehicle body assembly.

[0031] The beneficial effects involved in the embodiments of the second aspect and the third aspect can refer to the beneficial effects of the rear floor assembly provided in the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a partial schematic view of the rear floor assembly provided by the embodiment of the present utility model;

[0034] Figure 2 It is a partial schematic view of the rear floor assembly from another angle provided by the embodiment of the present utility model;

[0035] Figure 3 It is a structural schematic view of the shock absorber bracket of the rear floor assembly provided by the embodiment of the present utility model;

[0036] Figure 4 It is a structural schematic view of the shock absorber bracket of the rear floor assembly from another angle provided by the embodiment of the present utility model;

[0037] Figure 5 It is a structural schematic view of the shock absorber bracket and the shock absorber of the rear floor assembly provided by the embodiment of the present utility model;

[0038] Figure 6 It is an exploded view of the rear floor assembly provided by the embodiment of the present utility model;

[0039] Figure 7 For Figure 6 The enlarged view of part A in;

[0040] Figure 8 It is a top view of the vehicle body assembly provided by the embodiment of the present utility model;

[0041] Figure 9 It is a structural schematic view of the vehicle provided by the embodiment of the present utility model.

[0042] Among them, the reference numerals in the drawings:

[0043] 1000, vehicle;

[0044] 100, vehicle body assembly; 200, wheel; 300, battery device; 400, motor;

[0045] 10, rear floor assembly;

[0046] 11, rear longitudinal beam; 11a, side wall surface; 11b, accommodating cavity;

[0047] 12. Shock absorber bracket; 121. Bracket main body; 122. Connecting arm; 123. Reinforcing rib part; 12a. First mounting hole; 12b. Second mounting hole; 12c. Third mounting hole;

[0048] 13. Sleeve part; 131. Pipe body;

[0049] 14. Reinforcing part; 141. Main body; 142. Flanging part;

[0050] 15. Outer reinforcing plate;

[0051] 20. Chemical cabin; 21. Threshold beam;

[0052] X. First direction; Y. Second direction;

[0053] 30. Shock absorber. Detailed implementation manners

[0054] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0055] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0057] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] In the related art, the rear floor of a vehicle is made of aluminum parts, and its rear wheelhouse and rear floor are integrally cast. The installation point of the rear shock absorber should be directly set on the rear wheelhouse. Specifically, a mounting seat should be set on the rear wheelhouse to install the upper end of the rear shock absorber. The vibration kinetic energy of the mounting seat is directly transmitted to the rear wheelhouse in the vertical direction. Therefore, it is necessary to strengthen the structure of the rear wheelhouse to prevent it from being deformed by the vibration kinetic energy of the mounting seat. At the same time, the vibration kinetic energy of the mounting seat will also be transmitted to the rear longitudinal beam of the rear floor, increasing the shear force at the intersection of the two, which is not conducive to the dispersion of stress along the forward direction of the rear longitudinal beam. Therefore, a high stiffness requirement is imposed on the rear longitudinal beam.

[0059] In the case where the rear floor can be decoupled from the upper body, the shock absorber cannot be directly connected to the upper body, and there is no support structure on the rear floor, making it difficult to meet the stiffness requirements of the traditional shock absorber in the Z direction.

[0060] In view of this, an embodiment of the present application provides a rear floor assembly, adding a shock absorber bracket. Among them, the bracket main body of the shock absorber bracket is connected to the shock absorber, and the connecting arm is connected to the side wall surface of the rear longitudinal beam of the rear floor assembly. Moreover, the connecting arm is connected perpendicular to the side wall surface in the second direction. Therefore, it can provide a supporting effect on the shock absorber in the first direction, that is, meet the stiffness requirements of the shock absorber in the Z direction, or approximately meet the stiffness requirements in the Z direction.

[0061] In a first aspect, please refer to Figures 1 to 4 , an embodiment of the present application provides a rear floor assembly 10, which includes a rear longitudinal beam 11 and a shock absorber bracket 12.

[0062] The rear longitudinal beam 11 is a beam structure extending longitudinally in the rear floor assembly 10 and is also a structure connected to the upper body, and can be structurally connected to the upper body. Here, the longitudinal direction refers to the length direction of the vehicle body. At the same time, the transverse direction is the width direction of the vehicle body, and the height direction, that is, the Z direction, refers to the height direction of the vehicle body. Usually, the number of rear longitudinal beams 11 is two, and the two rear longitudinal beams 11 should be arranged at intervals in the transverse direction.

[0063] The shock absorber bracket 12 is a component for connecting the rear longitudinal beam 11 and the shock absorber 30 to meet the stiffness requirement of the shock absorber 30 in the Z direction.

[0064] Specifically, the rear longitudinal beam 11 has a side wall surface 11a. The side wall surface 11a refers to the structural surface of the rear longitudinal beam 11 in the transverse direction, and the side wall surface 11a is a structure facing outward from the passenger compartment of the vehicle body. At the same time, the plane where the side wall surface 11a is located should be perpendicular to the transverse direction, or approximately perpendicular to the transverse direction.

[0065] The shock absorber bracket 12 includes a bracket main body portion 121 and a connecting arm 122 provided on the bracket main body portion 121. A first mounting hole 12a for mounting the shock absorber 30 is provided on the bracket main body portion 121, and a second mounting hole 12b for connecting with the side wall surface 11a is provided on the connecting arm 122. Among them, the opening direction of the first mounting hole 12a is the first direction X, the opening direction of the second mounting hole 12b is the second direction Y, the second direction Y is perpendicular to the plane where the side wall surface 11a is located, and the first direction X and the second direction Y are arranged at an angle.

[0066] It can be understood that the bracket main body portion 121 is the main structural part of the shock absorber bracket 12. The bracket main body portion 121 is used to connect with the shock absorber 30 and meet the stiffness requirement of the shock absorber 30 in the Z direction. Therefore, the opening direction of the first mounting hole 12a, that is, the first direction X, is the Z direction or approximately the Z direction. When the shock absorber 30 is connected to the first mounting hole 12a through connecting parts such as screws and pins, the shock absorber 30 can be extended in the Z direction. The connecting arm 122 is a structural part extending outward from the bracket main body portion 121. It should be noted that the connecting arm 122 should meet the requirement of the shock absorber 30 extending in the Z direction. Thus, the connecting arm 122 should be formed by extending outward from the bracket main body portion 121 along the first direction X or approximately along the first direction X, and the opening direction of the second mounting hole 12b, that is, the second direction Y, can be perpendicular to the first direction X, and the second direction Y coincides with the transverse direction of the vehicle body. The connecting arm 122 is used to connect with the side wall surface 11a of the rear longitudinal beam 11, that is, connecting with the side wall surface 11a by passing connecting parts such as screws and pins through the second mounting hole 12b.

[0067] In other embodiments, the second direction Y can form an acute angle or an obtuse angle with the first direction X, that is, the second direction Y does not completely coincide with the transverse direction of the vehicle body, and this can be adjusted adaptively according to the inclination degree of the side wall surface 11a of the rear longitudinal beam 11.

[0068] Moreover, the number and installation position of the connecting arm 122 can be adjusted adaptively according to actual usage requirements.

[0069] Exemplarily, the number of the connecting arms 122 may be two, and the two connecting arms 122 are symmetrically arranged with the central axis of the bracket main body 121 as the symmetry center, that is, the overall structure of the shock absorber bracket 12 is axially symmetrically arranged.

[0070] For the rear floor assembly 10 provided by the present utility model, a shock absorber bracket 12 is provided between the side wall surface 11a of the rear longitudinal beam 11 and the shock absorber 30. Specifically, the shock absorber bracket 12 includes a bracket main body 121 and a connecting arm 122. The connecting arm 122 is connected to the side wall surface 11a of the rear longitudinal beam 11 through a connecting member passing through the second mounting hole 12b, and the shock absorber 30 is also connected to the bracket main body 121 through a corresponding connecting member passing through the first mounting hole 12a. In this way, the connection stiffness of the shock absorber 30 in the first direction X is improved. At the same time, by adding a shock absorber bracket 12, the mounting height of the shock absorber 30 relative to the rear longitudinal beam 11 in the first direction X can be adjusted by adjusting the size of the shock absorber bracket 12 or its mounting position with the rear longitudinal beam 11, that is, it is easier to meet the mounting requirements of the shock absorber 30 with a low profile.

[0071] Please refer to Figure 3 and Figure 4 , in some embodiments, the number of the connecting arms 122 is two, and the connecting arms 122 are symmetrically arranged on the opposite sides of the bracket main body 121 with respect to the setting position of the first mounting hole 12a.

[0072] It can be understood that the symmetrical arrangement of the connecting arms 122 with respect to the setting position of the first mounting hole 12a means that the distances from the two connecting arms 122 to the center position of the hole of the first mounting hole 12a are the same. When the shock absorber 30 is installed in the first mounting hole 12a through a connecting member, the two connecting arms 122 are also symmetrical with respect to the central axis of the shock absorber 30.

[0073] In this way, the shock absorber bracket 12 is axially symmetrically arranged as a whole to increase the connection stability after the shock absorber 30 is installed.

[0074] Please refer to Figure 3 and Figure 4 , in some embodiments, the shock absorber bracket 12 further includes a reinforcing rib portion 123, and the reinforcing rib portion 123 is used to connect the bracket main body 121 and the connecting arm 122.

[0075] It can be understood that the reinforcing rib portion 123 is used to increase the connection stability between the bracket main body 121 and the connecting arm 122 to improve the overall structural strength of the shock absorber bracket 12.

[0076] Exemplarily, the reinforcing rib portion 123 includes a rib plate, and the outer edges of the rib plate are respectively connected to the bracket main body 121 and the connecting arm 122.

[0077] In this way, the reinforcing rib portion 123 is used to further meet the requirement for the connection strength between the connecting arm 122 and the bracket main body portion 121.

[0078] Please refer to Figures 3 to 5 , in some embodiments, a third mounting hole 12c is formed in the bracket main body portion 121. The third mounting hole 12c is used for a connecting member to pass through and connect to the upper vehicle body. The opening direction of the third mounting hole 12c is the same as that of the first mounting hole 12a.

[0079] It can be understood that in addition to being connected to the rear longitudinal beam 11, the shock absorber bracket 12 is also connected to the upper vehicle body. Specifically, connecting members such as screws and pins are passed through the third mounting hole 12c to connect to the upper vehicle body.

[0080] At the same time, the opening direction of the third mounting hole 12c is also along the first direction X. Optionally, the opening direction of the third mounting hole 12c is the same as the axial direction of the shock absorber 30.

[0081] Exemplarily, as shown in the figure, the number of connecting arms 122 is two, and the two connecting arms 122 are symmetrically arranged on opposite sides of the bracket main body portion 121 with respect to the setting position of the first mounting hole 12a. At the same time, the number of the third mounting holes 12c is also two, and the centers of the two third mounting holes 12c are symmetrically arranged with respect to the center of the first mounting hole 12a. In this way, when the shock absorber bracket 12 is connected to the upper vehicle body, it is also in a force balance state.

[0082] In this way, a corresponding connecting member is passed through the third mounting hole 12c to realize the connection between the shock absorber 30 and the upper vehicle body.

[0083] Please refer to Figure 1 , Figure 6 and Figure 7 , in some embodiments, the rear longitudinal beam 11 has a receiving cavity 11b, and the rear floor assembly 10 includes a sleeve member 13. The sleeve member 13 is arranged in the receiving cavity 11b of the rear longitudinal beam 11 along the second direction Y and corresponds to the second mounting hole 12b.

[0084] It can be understood that in order to reduce the overall weight of the rear floor assembly 10, generally, the rear longitudinal beam 11 adopts a hollow structure. For example, the rear longitudinal beam 11 includes a beam main body that forms a receiving groove and a cover plate that covers the beam main body and encloses to form the receiving cavity 11b. In terms of processing method, the rear longitudinal beam 11 is simpler and more efficient. At the same time, the formed cavity structure can also significantly reduce the weight of the rear floor assembly 10, and the hollow structure has higher anti-bending performance.

[0085] However, the strength of the side wall surface 11a of the rear longitudinal beam 11 having the accommodation cavity 11b connected to the shock absorber bracket 12 is insufficient, specifically referring to the relatively thin wall thickness of the rear longitudinal beam 11, which makes it difficult to support the penetration connection of the connecting member. Therefore, on this basis, a sleeve member 13 adapted to be connected to the connecting member is added in the accommodation cavity 11b.

[0086] The structural form of the sleeve member 13 includes, but is not limited to, a tubular structure, a block structure, a strip structure, etc. At the same time, the sleeve member 13 should also have a hole structure corresponding to the second mounting hole 12b to meet the penetration requirements of the connecting member.

[0087] Exemplarily, the sleeve member 13 includes a tubular structure, and the opposite ends of the tubular structure are respectively abutted against the inner wall of the accommodation cavity 11b, so that the sleeve member 13 and the accommodation cavity 11b form two connection points. Compared with the connection method of a single connection point where the connecting member penetrates the wall of the longitudinal beam, its connection reliability is higher.

[0088] Exemplarily, the sleeve member 13 includes a block structure, which has six structural surfaces, and three of the structural surfaces are abutted and connected to the inner wall of the accommodation cavity 11b, so that the sleeve member 13 and the accommodation cavity 11b form three connection points. Compared with the connection method of a single connection point where the connecting member penetrates the wall of the rear longitudinal beam 11, its connection reliability is higher.

[0089] Of course, in other embodiments, the sleeve member 13 can also be of other shape structures. For example, the outer contour of the sleeve member 13 is adapted to the inner wall contour of the accommodation cavity 11b, and the contact area between the outer wall of the sleeve member 13 and the inner wall of the accommodation cavity 11b is larger than the contact area formed by forming two connection points or three connection points. That is, the connection stability between the sleeve member 13 and the rear longitudinal beam 11 is higher, and it can better bear the weight of the shock absorber bracket 12 and the shock absorber 30.

[0090] In this way, the connection stability between the shock absorber bracket 12 and the rear longitudinal beam 11 is increased by using the sleeve member 13.

[0091] Please refer to Figure 7 , in some embodiments, the sleeve member 13 includes a tube body 131, the opposite ends of the tube body 131 are fixedly connected to the inner wall of the accommodation cavity 11b, and the opening of the tube body 131 corresponds to the second mounting hole 12b.

[0092] Understandably, the tube body 131 should have an open end. And according to actual usage requirements, the tube body 131 can have only one open end on one side, or both sides of the tube body 131 are open ends. The open end of the tube body 131 is its opening, which is used for the connector to pass through. When the connector is a screw, the inner wall of the tube body 131 forms an internally threaded portion that matches it; or when the connector is a pin, the opening of the tube body 131 forms an interference fit hole-shaft connection relationship with the pin.

[0093] The number of tube bodies 131 can also be adjusted according to actual usage requirements. For example, the sleeve connector 13 includes a plurality of independently arranged tube bodies 131, and each tube body 131 corresponds to a second connection hole to meet the requirement for the connector to pass through and connect. Or, the sleeve connector 13 can also include a plurality of interconnected tube bodies 131, that is, there is a connection relationship between the tube bodies 131. The connection forms between the tube bodies 131 include but are not limited to welding, clamping, threaded connection, and bonding, etc. In this way, the tube bodies 131 form an integral body due to the connection, which can further enhance the connection stability between the rear longitudinal beam 11 and the shock absorber bracket 12.

[0094] In this way, the opposite ends of the tube body 131 are connected to the inner wall of the accommodation cavity 11b to form connection points with the rear longitudinal beam 11, so as to meet the connection requirements of the shock absorber bracket 12 and the rear longitudinal beam 11 by allowing the corresponding connector to pass through the second mounting hole 12b and the opening of the tube body 131 in sequence.

[0095] Please refer to Figure 1 and Figure 7 , in some embodiments, the rear floor assembly 10 further includes a reinforcing member 14, and the reinforcing member 14 is disposed in the accommodation cavity 11b and is connected to the tube body 131.

[0096] Understandably, the shape and structure of the tube body 131 limit the number of connection points between it and the accommodation cavity 11b, that is, the contact surface between the two structures is relatively small. That is, it is difficult to meet the situation of relatively high connection strength and the heavier shock absorber 30 by using the tube body 131 of the sleeve connector 13 as the connection carrier. Therefore, it is necessary to additionally increase the reinforcing member 14 to increase the connection points between the tube body 131 and the inner wall of the accommodation cavity 11b.

[0097] Here, the structural form of the reinforcing member 14 includes but is not limited to a reinforcing block structure, a reinforcing plate structure, and a reinforcing rib structure, etc.

[0098] Exemplarily, the reinforcing member 14 is a block structure, and a groove adapted to the outer wall of the tube body 131 is formed on the block structure. The tube body 131 is connected to the inner wall of the groove by welding or bonding, and the outer surface of the block structure is connected to the inner wall of the accommodation groove.

[0099] Exemplarily, the reinforcing member 14 is a plate-like structure, which should include a plate body and connecting lugs connected to the plate body. Among them, the plate body can be wrapped around the outer wall of the pipe body 131 and connected by welding or bonding, and the connecting lugs are connected to the inner wall of the accommodating groove.

[0100] In this way, by further increasing the use of the reinforcing member 14, the connection points between the pipe body 131 and the inner wall of the accommodating cavity 11b are increased, thereby enhancing the connection stability of the pipe body 131 within the accommodating cavity 11b.

[0101] Please refer to Figure 1 and Figure 7 In some embodiments, the reinforcing member 14 includes a main body portion 141 and a flanging portion 142 provided on the main body portion 141. The main body portion 141 is connected to the pipe wall of the pipe body 131, and the flanging portion 142 is connected to the inner wall of the accommodating cavity 11b.

[0102] It can be understood that the structural form of the main body portion 141 depends on the shape structure of the pipe body 131. The structural form of the main body portion 141 includes but is not limited to a block structure, a strip structure, and a plate structure. For example, when the pipe wall of the pipe body 131 is arc-shaped, the main body portion 141 also has a corresponding arc surface to increase the area between the two. And when the pipe wall of the pipe body 131 is flat, the main body portion 141 has a corresponding flat end face.

[0103] The flanging portion 142 is connected to the inner wall of the accommodating cavity 11b in a matching manner. Here, the connection method between the flanging portion 142 and the inner wall of the accommodating cavity 11b includes but is not limited to welding, threaded connection, plug connection, snap connection, etc.

[0104] Exemplarily, the main body portion 141 of the reinforcing member 14 is a plate body, and the flanging portion 142 is a flange formed on the edge side of the plate body. Among them, the plate body is welded to the pipe wall of the pipe body 131, and the flange is welded to the inner wall of the accommodating cavity 11b.

[0105] In this way, by connecting the flanging portion 142 to the inner wall of the accommodating cavity 11b and connecting the main body portion 141 to the pipe body 131, the connection stability of the pipe body 131 within the accommodating cavity 11b is enhanced.

[0106] In some embodiments, the sleeve member 13 includes a block body, the outer side wall of the block body is connected to the inner wall of the accommodating cavity 11b, and a hole structure corresponding to the second mounting hole 12b is provided on the block body.

[0107] It can be understood that the outer contour of the block body can better fit the inner wall of the accommodating cavity 11b, thereby forming more connection points. For example, the block body can be a regular cube, cylinder, cone, etc. with a regular shape, or a three-dimensional structure with an irregular shape but capable of better fitting the inner wall of the accommodating cavity 11b.

[0108] Among them, the hole structure on the block is opposite to the second mounting hole 12b to satisfy the penetration connection of connecting members such as screws and pins.

[0109] In this way, similarly, the contact area between the block and the accommodating cavity 11b can be increased, and the corresponding connecting members are sequentially penetrated through the second mounting and the hole structure to connect the shock absorber bracket 12 to the rear longitudinal beam 11.

[0110] Please refer to Figure 1 and Figure 8 , in some embodiments, the rear floor assembly 10 further includes an outer reinforcing plate 15, and the outer reinforcing plate 15 is disposed on the side wall surface 11a and located between the rear longitudinal beam 11 and the connecting arm 122.

[0111] It can be understood that the outer reinforcing plate 15 is used to increase the wall thickness of the side wall surface 11a of the rear longitudinal beam 11, thereby increasing the structural strength of the rear longitudinal beam 11.

[0112] Here, the connection method between the outer reinforcing plate 15 and the rear longitudinal beam 11 includes but is not limited to welding, threaded connection, snap connection, etc. Among them, the threaded connection facilitates the disassembly and assembly of the outer reinforcing plate 15 and the rear longitudinal beam 11, and also, the outer reinforcing plate 15 with corresponding thickness and dimension specifications can be replaced according to the corresponding connection strength requirements.

[0113] In this way, the outer reinforcing plate 15 can be used to further increase the structural strength of the side wall surface 11a of the rear longitudinal beam 11 to meet the installation requirements of the shock absorber bracket 12.

[0114] Next, the rear floor assembly 10 provided by the embodiments of the present application will be described in detail according to specific embodiments.

[0115] Please refer to Figures 1 to 7 , in a specific embodiment, the rear floor assembly 10 provided by the embodiments of the present application includes a rear longitudinal beam 11, a shock absorber bracket 12, a sleeve member 13, a reinforcing member  14, and an outer reinforcing plate 15.

[0116] The rear longitudinal beam 11 has a side wall surface 11a; the shock absorber bracket 12 has a bracket main body portion 121 and a connecting arm 122 disposed on the bracket main body portion 121. A first mounting hole 12a for installing the shock absorber 30 is provided on the bracket main body, and a second mounting hole 12b connected to the side wall surface 11a is provided on the connecting arm 122. Among them, the opening direction of the first mounting hole 12a is the first direction X, the opening direction of the second mounting hole 12b is the second direction Y, the second direction Y is perpendicular to the plane where the side wall surface 11a is located, and the first direction X and the second direction Y are arranged at an angle. Here, the first direction X is the Z direction, that is, the height direction of the vehicle body, and the second direction Y coincides with the lateral direction of the vehicle body.

[0117] There are two connecting arms 122, and the two connecting arms 122 are symmetrically arranged on the opposite sides of the bracket main body 121 with respect to the setting position of the first mounting hole 12a. The reinforcing rib portion 123 is used to connect the bracket main body 121 and the connecting arm 122.

[0118] A third mounting hole 12c is formed in the bracket main body. The third mounting hole 12c is used for a connecting member to pass through and connect to the upper body. The opening direction of the third mounting hole 12c is the same as the opening direction of the first mounting hole 12a.

[0119] The rear longitudinal beam 11 has a receiving cavity 11b. The sleeve member 13 is arranged in the receiving cavity 11b of the rear longitudinal beam 11 along the second direction Y and corresponds to the second mounting hole 12b. The sleeve member 13 includes a pipe body 131. The opposite ends of the pipe body 131 are fixedly connected to the inner wall of the receiving cavity 11b, and the opening of the pipe body 131 corresponds to the second mounting hole 12b. The reinforcing member 14 is arranged in the receiving cavity 11b and is connected to the pipe body 131. The reinforcing member 14 includes a main body portion 141 and a flanging portion 142 arranged on the main body portion 141. The main body portion 141 is connected to the pipe wall of the pipe body 131, and the flanging portion 142 is connected to the inner wall of the receiving cavity 11b. The outer reinforcing plate 15 is arranged on the side wall surface 11a and is located between the rear longitudinal beam 11 and the connecting arm 122.

[0120] In a second aspect, please refer to Figure 8 , this embodiment of the present application further provides a vehicle body assembly, including a chemical cabin 20 and the above-mentioned rear floor assembly 10. The chemical cabin 20 is connected to the rear longitudinal beam 11 of the rear floor assembly 10.

[0121] Here, the chemical cabin 20 is a structural part of the vehicle body assembly corresponding to the vehicle occupant cabin and is also a structural part for installing the battery device; the rear floor assembly 10 is a structural part of the vehicle body assembly corresponding to the vehicle rear end.

[0122] Specifically, the chemical cabin 20 includes a sill beam 21. The sill beam 21 extends along the length direction of the vehicle body and is connected to the rear longitudinal beam 11 of the rear floor assembly 10.

[0123] In a third aspect, please refer to Figure 9 , this embodiment of the present application further provides a vehicle 1000, including the above-mentioned vehicle body assembly 100.

[0124] The vehicle 1000 to which the technical solution described in this embodiment of the present application is applicable includes a fuel vehicle, a gas vehicle, or a new energy vehicle. Among them, the new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc.

[0125] Of course, the vehicle 1000 provided by the present application further includes wheels 200 connected to the body assembly 100, a battery device 300 provided on the body assembly 100, and a motor 400. The battery device 300 is used to supply power to the motor 400, and the motor 400 is used to drive the wheels 200 to rotate.

[0126] For the beneficial effects involved in the embodiments of the second and third aspects, reference may be made to the beneficial effects of the rear floor assembly 10 provided in the first aspect, which will not be elaborated here.

[0127] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rear floor assembly, characterized in that, Comprising: A rear longitudinal beam having a side wall surface; A shock absorber bracket including a bracket main body portion and a connecting arm provided on the bracket main body portion. A first mounting hole for mounting a shock absorber is provided on the bracket main body portion, and a second mounting hole connected to the side wall surface is provided on the connecting arm; Wherein, the opening direction of the first mounting hole is a first direction, the opening direction of the second mounting hole is a second direction, the second direction is perpendicular to the plane where the side wall surface is located, and the first direction and the second direction are arranged at an angle.

2. The rear floor assembly according to claim 1, wherein: The number of the connecting arms is two, and each connecting arm is symmetrically arranged on opposite sides of the bracket main body portion with respect to the setting position of the first mounting hole.

3. The rear floor assembly according to claim 1 or 2, characterized in that: The shock absorber bracket further includes a reinforcing rib portion for connecting the bracket main body portion and the connecting arm.

4. The rear floor assembly according to claim 1 or 2, characterized in that: A third mounting hole is formed on the bracket main body portion for a connecting member to pass through and be connected to the upper body, and the opening direction of the third mounting hole is the same as that of the first mounting hole.

5. The rear floor assembly according to claim 1, characterized in that: The rear longitudinal beam has a receiving cavity, and the rear floor assembly includes a sleeve member. The sleeve member is arranged in the receiving cavity of the rear longitudinal beam along the second direction and corresponds to the second mounting hole.

6. The rear floor assembly according to claim 5, characterized in that: The sleeve member includes a pipe body, and opposite ends of the pipe body are fixedly connected to the inner wall of the receiving cavity, and the opening of the pipe body corresponds to the second mounting hole.

7. The rear floor assembly according to claim 6, characterized in that: The rear floor assembly further includes a reinforcing member arranged in the receiving cavity and connected to the pipe body.

8. The rear floor assembly according to claim 7, characterized in that: The reinforcing member includes a main body portion and a flanging portion provided on the main body portion. The main body portion is connected to the pipe wall of the pipe body, and the flanging portion is connected to the inner wall of the receiving cavity.

9. The rear floor assembly according to claim 5, characterized in that: The sleeve member includes a block, the outer side wall of the block is connected to the inner wall of the receiving cavity, and a hole structure corresponding to the second mounting hole is formed on the block.

10. The rear floor assembly according to claim 1, characterized in that: The rear floor assembly further includes an outer reinforcing plate arranged on the side wall surface and located between the rear longitudinal beam and the connecting arm.

11. A vehicle body assembly, characterized in that: Comprising a chemical cabin and the rear floor assembly according to any one of claims 1 to 10, wherein the chemical cabin is connected to the rear longitudinal beam of the rear floor assembly.

12. A vehicle, characterized in that: Comprising the vehicle body assembly according to claim 11.

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