Rear floor beam structure and automobile

Abstract

The utility model provides a rear floor cross beam structure and an automobile, and belongs to the technical field of automobile manufacturing, the rear floor cross beam structure comprises a rear floor beam main body and a pair of suspension mounting points, the pair of suspension mounting points are respectively arranged at two ends of the rear floor beam main body, and suspension bolts can penetrate through the suspension mounting points to mount a suspension. The rear floor beam main body has high strength, the suspension mounting points are arranged at the two ends of the rear floor beam main body, the strength requirement of suspension on vehicle body impact can be met, the vehicle safety is improved, independent suspension mounting points do not need to be arranged, and the mounting structure is simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile manufacturing, and more specifically relates to a rear floor crossbeam structure and an automobile. Background Art

[0002] The rear floor cross member, a key component of the rear floor assembly and the body-in-white (BIW), primarily enhances the BIW's bending and torsional rigidity. The floor cross member and longitudinal members form the rear floor frame assembly, which, together with the rear floor panel assembly, forms the rear floor assembly. Connected with the side panels, roof assembly, front engine compartment assembly, and front floor assembly, the cage-like structure plays a crucial role in enhancing the vehicle's overall bending and torsional rigidity.

[0003] Automobile bodies are divided into load-bearing bodies and non-load-bearing bodies. Load-bearing bodies have no frame suspension, and the front and rear subframes are both installed on the body. In order to meet the requirements of body performance and other requirements, the floor beams will be made wider and higher; non-load-bearing bodies require suspension to be installed between the body and the frame. In the existing technology, independent suspension mounting points are usually required, resulting in low stiffness of the suspension mounting points and complex mounting structures. Utility Model Content

[0004] The purpose of the utility model is to provide a rear floor crossbeam structure and a car, so as to solve the problems of low rigidity of the suspension installation point and complex installation structure in the prior art.

[0005] In order to achieve the above objectives, in a first aspect, the present invention provides a rear floor crossbeam structure, comprising:

[0006] rear floor beam body;

[0007] A pair of suspension mounting points are respectively arranged at both ends of the rear floor beam body, and the suspension mounting points can be penetrated by suspension bolts to install the suspension.

[0008] Furthermore, the suspension mounting point also includes a reinforcing plate, the cross-section of the reinforcing plate is U-shaped, and is formed with a bottom wall and a pair of side walls. The upper portions of the pair of side walls are fixedly connected to the rear floor beam body to connect the reinforcing plate to the bottom of the rear floor beam body. Both ends of the rear floor beam body are provided with a first hole, and the bottom wall of the reinforcing plate is provided with a second hole corresponding to the first hole. The first hole and the second hole are used to insert the suspension bolt.

[0009] Furthermore, the upper end of the side wall is provided with a flange extending outward, and the reinforcement plate is connected to the rear floor beam body through the flange.

[0010] Furthermore, the suspension mounting point further includes a support plate, an accommodation space is formed between the rear floor beam body and the reinforcement plate, and the support plate is disposed in the accommodation space;

[0011] The support plate has a U-shaped cross-section and is fixedly connected to the bottom wall and a pair of side walls of the reinforcing plate. A third hole corresponding to the first hole and the second hole is provided at the bottom of the support plate, and the third hole is used to insert the suspension bolt.

[0012] Furthermore, the suspension mounting point also includes a support sleeve, which is arranged between the rear floor beam body and the support plate and fixedly connected to the support plate, and has through holes corresponding to the first hole, the second hole and the third hole provided therein, and the through holes are used to insert the suspension bolts.

[0013] Furthermore, a connecting surface extending outward is formed at the lower end of the support sleeve, and the support sleeve is fixedly connected to the reinforcing plate through the connecting surface.

[0014] Furthermore, the suspension mounting point also includes a limiting bracket, which is fixedly connected above the first hole and forms a groove, and the groove is used to accommodate and position the bolt head of the suspension bolt. The bottom of the groove is provided with a fourth hole corresponding to the first hole, the second hole, the third hole and the through hole, and the fourth hole is used to insert the suspension bolt.

[0015] In a second aspect, the present invention provides a vehicle, comprising:

[0016] The rear floor cross member structure described in the first aspect.

[0017] Furthermore, the car also includes:

[0018] The suspension is installed at a pair of suspension installation points.

[0019] Furthermore, the suspension bolt passes through the suspension mounting point and the suspension and is fixed by a self-locking nut.

[0020] The beneficial effects of the present invention are: providing a rear floor crossbeam structure and a car, the rear floor crossbeam structure comprising a rear floor beam body and a pair of suspension mounting points, the pair of suspension mounting points being respectively arranged at both ends of the rear floor beam body, the suspension mounting points being capable of being penetrated by suspension bolts to install the suspension, the rear floor beam body itself having high strength, arranging the suspension mounting points at both ends of the rear floor beam body being able to meet the strength requirements of the suspension against the impact of the vehicle body, thereby improving vehicle safety, and eliminating the need to arrange independent suspension mounting points, thereby simplifying the mounting structure.

[0021] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0023] Figure 1 A schematic exploded structural diagram of a rear floor cross member structure according to an embodiment of the present utility model is shown.

[0024] Figure 2 The figure shows an external schematic structural diagram of a rear floor cross member structure according to an embodiment of the present utility model.

[0025] Figure 3 A partial cross-sectional schematic structural diagram of a rear floor cross member structure according to an embodiment of the present utility model is shown.

[0026] Figure 4 A schematic structural diagram showing a suspension mounted on a rear floor cross member structure according to an embodiment of the present utility model is shown.

[0027] Description of reference numerals:

[0028] 1. Rear floor beam body; 2. Reinforcement plate; 3. Support plate; 4. Support sleeve; 5. Limit bracket; 6. Suspension; 7. Suspension bolt; 8. Self-locking nut. DETAILED DESCRIPTION

[0029] The following describes preferred embodiments of the present invention in greater detail. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0030] Example 1

[0031] This embodiment provides a rear floor crossbeam structure, including:

[0032] Rear floor beam main body 1;

[0033] A pair of suspension mounting points are respectively provided at both ends of the rear floor beam body 1 , and the suspension mounting points can be penetrated by suspension bolts 7 to install the suspension 6 .

[0034] Specifically, according to CAE and NVH analysis and load distribution, the rear floor beam body 1 itself has relatively high strength. Arranging the suspension mounting points at both ends of the rear floor beam body 1 can meet the strength requirements of the suspension 6 on the vehicle body impact, thereby improving vehicle safety. In addition, there is no need to set up independent suspension mounting points, which simplifies the installation structure.

[0035] Optionally, the suspension mounting point also includes a reinforcing plate 2, the reinforcing plate 2 has a U-shaped cross-section, and is formed with a bottom wall and a pair of side walls. The upper portions of the pair of side walls are fixedly connected to the rear floor beam body 1 to connect the reinforcing plate 2 to the bottom of the rear floor beam body 1. Both ends of the rear floor beam body 1 are provided with a first hole, and the bottom wall of the reinforcing plate 2 is provided with a second hole corresponding to the first hole. The first hole and the second hole are used to insert the suspension bolts 7.

[0036] Specifically, the reinforcement plate 2 can increase the rigidity of the suspension installation point and improve vehicle safety.

[0037] Optionally, the upper end of the side wall is provided with a flange extending outward, and the reinforcing plate 2 is connected to the rear floor beam body 1 through the flange.

[0038] Specifically, the flange structure enables the reinforcing plate 2 to be surface-connected to the rear floor beam body 1 , thereby increasing the local structural strength and improving the safety of the vehicle.

[0039] Optionally, the suspension mounting point further includes a support plate 3, an accommodation space is formed between the rear floor beam body 1 and the reinforcement plate 2, and the support plate 3 is disposed in the accommodation space;

[0040] The support plate 3 has a U-shaped cross-section and is fixedly connected to the bottom wall and a pair of side walls of the reinforcing plate 2. A third hole corresponding to the first and second holes is provided at the bottom of the support plate 3, and the third hole is used to insert the suspension bolt 7.

[0041] Specifically, the support plate 3 supports the accommodating space, further improving the rigidity of the suspension installation point and enhancing the safety of the vehicle.

[0042] Optionally, the suspension mounting point also includes: a support sleeve 4, which is arranged between the rear floor beam body 1 and the support plate 3 and fixedly connected to the support plate 3, and has through holes corresponding to the first hole, the second hole and the third hole inside, and the through holes are used to insert the suspension bolts 7.

[0043] Specifically, the support sleeve 4 can support the accommodating space and improve the strength of the suspension installation point; and can increase the contact area between the suspension installation point and the suspension bolt 7, thereby improving the firmness of the suspension 6 installation and improving vehicle safety.

[0044] Furthermore, a connecting surface extending outward is formed at the lower end of the support sleeve 4 , and the support sleeve 4 is fixedly connected to the reinforcing plate 2 via the connecting surface.

[0045] Specifically, the connection surface can increase the connection area between the support sleeve 4 and the reinforcement plate 2, thereby improving the firmness of the connection and enhancing the safety of the vehicle.

[0046] Furthermore, the suspension mounting point also includes a limiting bracket 5, which is fixedly connected above the first hole and forms a groove. The groove is used to accommodate and position the bolt head of the suspension bolt 7. The bottom of the groove is provided with a fourth hole corresponding to the first hole, the second hole, the third hole and the through hole. The fourth hole is used to insert the suspension bolt 7.

[0047] Specifically, the groove of the limiting bracket 5 can limit the suspension bolt 7, thereby improving the installation accuracy and firmness, and improving the safety of the vehicle.

[0048] Example 2

[0049] This embodiment provides a car, including:

[0050] The rear floor cross member structure in the first embodiment.

[0051] Optionally, a suspension 6 is further included, and the suspension 6 is installed at a pair of suspension installation points.

[0052] Optionally, the suspension bolt 7 passes through the suspension mounting point and the suspension 6 and is fixed by a self-locking nut 8 .

[0053] Specifically, arranging the suspension mounting points at both ends of the rear floor beam body 1 can meet the strength requirements of the suspension 6 on the impact of the vehicle body, thereby improving vehicle safety.

[0054] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A rear floor beam structure, characterized in that: include: Rear floor beam body (1); A pair of suspension mounting points are respectively provided at both ends of the rear floor beam body (1), wherein the suspension mounting points can be penetrated by suspension bolts (7) to install the suspension (6); The suspension mounting point also includes a reinforcing plate (2), the reinforcing plate (2) having a U-shaped cross section, including a bottom wall and a pair of side walls, the upper portions of the pair of side walls being fixedly connected to the rear floor beam body (1) to connect the reinforcing plate (2) below the rear floor beam body (1), both ends of the rear floor beam body (1) being provided with a first hole, the bottom wall of the reinforcing plate (2) being provided with a second hole corresponding to the first hole, the first hole and the second hole being used for inserting the suspension bolt (7).

2. The rear floor cross member structure according to claim 1, characterized in that: The upper end of the side wall is provided with a flange extending outward, and the reinforcing plate (2) is connected to the rear floor beam body (1) via the flange.

3. The rear floor cross member structure according to claim 1, characterized in that: The suspension installation point further includes a support plate (3), an accommodation space is formed between the rear floor beam body (1) and the reinforcement plate (2), and the support plate (3) is arranged in the accommodation space; The support plate (3) has a U-shaped cross-section and is fixedly connected to the bottom wall and a pair of side walls of the reinforcing plate (2). A third hole corresponding to the first hole and the second hole is provided at the bottom of the support plate (3), and the third hole is used to penetrate the suspension bolt (7).

4. The rear floor cross member structure according to claim 3, characterized in that: The suspension mounting point further comprises a support sleeve (4), which is arranged between the rear floor beam body (1) and the support plate (3) and is fixedly connected to the support plate (3), and is provided with through holes corresponding to the first hole, the second hole and the third hole inside, and the through holes are used to penetrate the suspension bolts (7).

5. The rear floor cross member structure according to claim 4, characterized in that: A connecting surface extending outward is formed at the lower end of the support sleeve (4), and the support sleeve (4) is fixedly connected to the reinforcing plate (2) via the connecting surface.

6. The rear floor cross member structure according to claim 4, characterized in that: The suspension mounting point also includes a limiting bracket (5), which is fixedly connected above the first hole and forms a groove, wherein the groove is used to accommodate and position the bolt head of the suspension bolt (7), and the bottom of the groove is provided with a fourth hole corresponding to the first hole, the second hole, the third hole and the through hole, and the fourth hole is used to penetrate the suspension bolt (7).

7. An automobile, characterized in that: include: The rear floor cross member structure according to any one of claims 1 to 6.

8. The automobile according to claim 7, characterized in that Also includes: The suspension (6) is mounted on a pair of suspension mounting points.

9. The automobile according to claim 8, characterized in that The suspension bolt (7) passes through the suspension mounting point and the suspension (6) and is fixed by a self-locking nut (8).

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