Vehicle rear bumper bracket mounting structure and vehicle

Abstract

The present invention discloses a vehicle rear bumper bracket mounting structure and a vehicle. The vehicle rear bumper bracket mounting structure includes a rear enclosure assembly and an intermediate bracket. The rear enclosure assembly includes a rear enclosure inner panel and a rear enclosure outer panel. The rear enclosure inner panel includes an inner panel main section. The rear enclosure outer panel includes an outer panel main section. At least one of the inner panel main section and the outer panel main section is bent in a direction away from the other, and the upper and lower ends of the inner panel main section and the outer panel main section are correspondingly connected to enclose and form a cavity. The intermediate bracket extends in the upper and lower directions. The upper end of the intermediate bracket is fixedly connected to the rear side of the outer panel main section. The cavity structure enclosed by the rear enclosure inner panel and the rear enclosure outer panel is firm. In the technical solution of the present invention, the upper end of the intermediate bracket is overlapped with the outer side wall of the cavity. By optimizing the overlap position of the rear bumper bracket and the rear enclosure, the rigidity, strength and fatigue durability of the rear bumper bracket are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle rear bumper installation, and in particular to a vehicle rear bumper bracket installation structure and a vehicle. Background Art

[0002] The lower mounting points of passenger car rear bumpers are typically located at the left, center, and right (or left and right) locations on the rear panel. To ensure the rigidity and strength of the brackets, certain requirements are placed on the bracket material, thickness, and the method of overlap with the surrounding area. Currently, most passenger car rear bumper brackets are overlapped with the rear panel, which poses a risk of insufficient rigidity and strength. Summary of the Invention

[0003] The main purpose of the present invention is to provide a vehicle rear bumper bracket mounting structure and a vehicle, aiming to solve the technical problem of insufficient rigidity and strength of the rear bumper bracket in the prior art.

[0004] To achieve the above objectives, the present invention provides a vehicle rear bumper bracket mounting structure and a vehicle, comprising:

[0005] A rear panel assembly includes a rear panel inner panel and a rear panel outer panel, wherein the rear panel inner panel includes an inner panel main section, and the rear panel outer panel includes an outer panel main section, wherein at least one of the inner panel main section and the outer panel main section is bent away from the other, and the upper and lower ends of the inner panel main section and the outer panel main section are correspondingly connected to enclose a cavity; and

[0006] The middle bracket is extended in the up-down direction, and the upper end of the middle bracket is fixedly connected to the rear side of the outer panel main section.

[0007] Optionally, the intermediate bracket includes a main body and a bending part, the main body extends in the up and down directions, the upper end of the main body is connected to one end of the bending part and is arranged at a certain angle, and the bending part is welded to the lower side of the outer panel main section.

[0008] Optionally, the rear outer panel further includes an outer panel extension section extending downward from the lower end of the outer panel main section, and the main body is installed on the rear side of the outer panel extension section and fits with the outer panel extension section.

[0009] Optionally, the rear panel assembly also includes a lock mounting plate, which is installed in the cavity and arranged in parallel with the inner panel main section. The lower end of the lock mounting plate is provided with a lock plate extension portion extending downward, and the lock plate extension portion is installed on the front side of the outer panel extension section. The lock plate extension portion, the outer panel extension section and the main section are welded to form a first welding area.

[0010] Optionally, the rear inner panel includes an inner panel extension section extending downward from the lower end of the inner panel main section, and the inner panel extension section is provided with a first avoidance hole at the first welding area, and a second welding area is formed by welding the inner panel extension section, the outer panel extension section and the main body.

[0011] Optionally, the second welding area is located below the first welding area and spaced apart from the first welding area, and a second avoidance hole is provided between the first welding area and the second welding area of the main body.

[0012] Optionally, the vehicle rear bumper bracket mounting structure further includes:

[0013] a rear longitudinal beam, the rear end of which is fixedly connected to one side of the rear outer panel in the left-right direction; and

[0014] The side brackets are fixedly connected to the outer panel extension section and the rear longitudinal beam respectively.

[0015] Optionally, the rear outer panel further includes an outer panel extension section extending downward from the lower end of the outer panel main section, a rear end of the rear longitudinal beam is provided with a rear longitudinal beam extension plate extending in the up-down and left-right directions, and the lower end of the outer panel extension section is fixedly connected to the rear longitudinal beam extension plate;

[0016] The side bracket extends in the up-down direction, the side bracket is welded to the outer panel extension section to form a third welding area, and the side bracket is welded to the rear longitudinal beam extension plate bracket to form a fourth welding area.

[0017] Optionally, the third welding area is located above the fourth welding area and spaced apart from the fourth welding area, and a third avoidance hole is provided between the third welding area and the fourth welding area of the side bracket.

[0018] The present invention further provides a vehicle, including a vehicle rear bumper bracket mounting structure, wherein the vehicle rear bumper bracket mounting structure includes:

[0019] A rear panel assembly includes a rear panel inner panel and a rear panel outer panel, wherein the rear panel inner panel includes an inner panel main section, and the rear panel outer panel includes an outer panel main section, wherein at least one of the inner panel main section and the outer panel main section is bent away from the other, and the upper and lower ends of the inner panel main section and the outer panel main section are correspondingly connected to enclose a cavity; and

[0020] The middle bracket is extended in the up-down direction, and the upper end of the middle bracket is fixedly connected to the rear side of the outer panel main section.

[0021] In the technical solution of the present invention, the rear enclosure assembly includes a rear enclosure inner panel and a rear enclosure outer panel, the rear enclosure inner panel includes an inner panel main section, the rear enclosure outer panel includes an outer panel main section, at least one of the inner panel main section and the outer panel main section is bent in a direction away from the other, and the upper and lower ends of the inner panel main section and the outer panel main section are correspondingly connected to enclose a cavity, and the intermediate bracket is extended in the upper and lower directions, and the upper end of the intermediate bracket is fixedly connected to the rear side of the outer panel main section. Since the structural rigidity of the cavity is stable, the intermediate bracket is overlapped with the cavity to achieve the beneficial effect of improving the strength of the intermediate bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of an embodiment of a vehicle rear bumper bracket mounting structure provided by the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle;

[0025] Figure 3 for Figure 1 Schematic diagram of the connection structure between the center side bracket, the rear outer panel and the rear longitudinal beam.

[0026] Description of the accompanying drawings of the embodiments provided by the present invention:

[0027]

[0028]

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The lower mounting points of passenger car rear bumpers are typically located at the left, center, and right (or left and right) locations on the rear panel. To ensure the rigidity and strength of the brackets, certain requirements are placed on the bracket material, thickness, and the method of overlap with the surrounding area. Currently, most passenger car rear bumper brackets are overlapped with the rear panel, which poses a risk of insufficient rigidity and strength.

[0034] In view of this, the present invention provides a vehicle rear bumper bracket mounting structure and a vehicle, aiming to solve the technical problem of insufficient rigidity and strength of the rear bumper bracket in the prior art.

[0035] See also Figures 1 to 3, is a structural schematic diagram of an embodiment of a vehicle rear bumper bracket installation structure provided by the present invention, the vehicle rear bumper bracket installation structure includes a rear panel assembly 1 and an intermediate bracket 2, the rear panel assembly 1 includes a rear panel inner panel 11 and a rear panel outer panel 12, the rear panel inner panel 11 includes an inner panel main section 111, the rear panel outer panel 12 includes an outer panel main section 121, at least one of the inner panel main section 111 and the outer panel main section 121 is bent in a direction away from the other, and the upper and lower ends of the inner panel main section 111 and the outer panel main section 121 are correspondingly connected to enclose a cavity 13, the The intermediate bracket 2 is extended in the up and down directions, and the upper end of the intermediate bracket 2 is fixedly connected to the rear side of the outer panel main section 121. The traditional rear bumper bracket is only connected to the rear outer panel 12, and the rigidity is relatively weak. In the technical solution of the present invention, the intermediate bracket 2 is connected to the cavity 13 of the rear bumper assembly 1. The cavity 13 composed of the inner panel main section 111 and the outer panel main section 121 has high rigidity. The intermediate bracket 2 is connected to the outer panel main section 121, that is, the outer wall of the cavity 13, which can effectively improve the installation strength of the intermediate bracket 2 and further improve the installation strength of the rear bumper.

[0036] In this embodiment, the intermediate bracket 2 includes a main body 21 and a bending portion 22. The main body 21 extends in the up and down directions. The upper end of the main body 21 is connected to one end of the bending portion 22 and is set at a certain angle. The bending portion 22 is welded to the lower side of the outer panel main section 121. Since the outer panel main section 121 is part of the cavity 13, it has high rigidity, and the bending portion 22 forms a certain angle with the main body 21, which improves the overall strength of the intermediate bracket 2. The specific angle is determined according to the outer panel main section 121 and the outer panel extension section 122, so that the intermediate bracket 2 is better fitted with the rear outer panel 12.

[0037] Furthermore, the rear outer panel 12 also includes an outer panel extension section 122 extending downward from the lower end of the outer panel main section 121, and the main body 21 is installed on the rear side of the outer panel extension section 122 and fits with the outer panel extension section 122. By fitting and welding the main body 21 and the outer panel extension section 122, and fitting and welding the bent portion 22 and the lower side of the outer panel main section 121, the two-point installation makes the connection structure of the intermediate bracket 2 more secure.

[0038] In this embodiment, the rear panel assembly 1 also includes a lock mounting plate 14, which is installed in the cavity 13 and arranged in parallel with the inner panel main section 111. The lower end of the lock mounting plate 14 is provided with a lock plate extension 141 extending downward, and the lock plate extension 141 is installed on the front side of the outer panel extension section 122. The lock plate extension 141, the outer panel extension section 122 and the main body 21 are welded to form a first welding area. The first welding area is three-layer welded, so that the intermediate bracket 2, the rear panel outer panel 12 and the lock mounting plate 14 are connected together, and the thickness is greater than the thickness of the ordinary rear protection bracket + rear panel outer panel. In some embodiments, it is about 1.4 mm thicker than the thickness of the rear protection bracket + rear panel outer panel, so as to achieve the purpose of dispersing the force on the intermediate bracket 2 and improve fatigue durability.

[0039] Furthermore, the rear inner panel 11 includes an inner panel extension section 112 extending downward from the lower end of the inner panel main section 111. Since welding more than three layers is difficult, the inner panel extension section 112 is provided with a first avoidance hole 113 at the first welding area to avoid the welding of the welding gun to the first welding area. The lock plate extension portion 141 stops when it extends to the first welding area. The inner panel extension section 112, the outer panel extension section 122 and the main body 21 are welded to form a second welding area, so that the rear inner panel 11, the rear outer panel 12 and the intermediate bracket 2 are connected together to form a three-layer weld, which also serves to disperse the stress of the rear bumper bracket during driving and improve fatigue durability.

[0040] During the process of the inner panel extension section 112 and the outer panel extension section 122 being fitted together and extending downward, they need to be connected to the vehicle floor 5 so that the rear panel assembly 1 is connected to the vehicle body frame and the overall strength is improved. Since the main body 21 of the intermediate bracket 2 also extends in the up and down directions, in this embodiment, the second welding area is located below the first welding area and is spaced apart from the first welding area. A second avoidance hole 23 is provided between the first welding area and the second welding area of the main body 21 to avoid the connection between the rear panel assembly 1 and the vehicle floor 5.

[0041] In one embodiment of the present invention, the vehicle rear bumper bracket mounting structure also includes a rear longitudinal beam 4 and a side bracket 3, the rear end of the rear longitudinal beam 4 is fixedly connected to one side of the rear outer panel 12 in the left and right directions, and the side bracket 3 is fixedly connected to the outer panel extension section 122 and the rear longitudinal beam 4 respectively, so that the side bracket 3 is also connected to the vehicle body frame, thereby improving the strength of the side bracket 3 and dispersing the stress of the side bracket 3 during driving, wherein the number of the side bracket 3 is two, which are respectively arranged on the left and right sides of the rear outer panel 12.

[0042] Furthermore, the rear outer panel 12 also includes an outer panel extension section 122 extending downward from the lower end of the outer panel main section 121, and the rear end of the rear longitudinal beam 4 is provided with a rear longitudinal beam extension plate 41 extending in the up-down and left-right directions. The lower end of the outer panel extension section 122 is fixedly connected to the rear longitudinal beam extension plate 41, and the side bracket 3 extends in the up-down direction. The upper end of the side bracket 3 is welded to the outer panel extension section 122 to form a third welding area, and the side bracket 3 is welded to the rear longitudinal beam extension plate 41 to form a fourth welding area. The two welding areas enable the side bracket 3 to be fixedly connected to the rear outer panel 12 while also being connected to the rear longitudinal beam 4, effectively improving the installation strength of the side bracket 3.

[0043] Furthermore, the rear longitudinal beam extension plate 41 is connected to the front side of the outer panel extension section 122, the third welding area is located above the fourth welding area and is spaced apart from the fourth welding area, and a third avoidance hole 31 is provided between the third welding area and the fourth welding area of the side bracket. During specific installation, the side bracket 3 is first welded to the outer panel extension section 122 to form the third welding area, and then welded to the rear longitudinal beam extension plate 41 to form the fourth welding area during overall assembly, so that the side bracket 3 becomes part of the vehicle body frame. The rear section of the rear longitudinal beam 4 has relatively stable rigidity, which can improve the strength of the side bracket 3. At the same time, there is the inner panel extension section 112 between the rear longitudinal beam extension plate 41 and the outer panel extension section 122. Because the rear enclosure assembly 1 composed of the outer panel extension section 122 and the inner panel extension section 112 needs to be connected to the rear longitudinal beam 4, the third avoidance hole 31 is opened in this area for welding the rear enclosure assembly 1 to the rear longitudinal beam 4.

[0044] The technical solution of the present invention improves the stiffness and strength of the intermediate bracket 2 and the side bracket 3 and further ensures the fatigue durability of the intermediate bracket 2 and the side bracket 3 by only changing the overlap relationship and arranging them in the area of stable rear stiffness without changing the material and thickness of the parts.

[0045] The present invention also provides a vehicle including the aforementioned vehicle rear bumper support mounting structure. It is understood that because the vehicle of the present invention utilizes all technical solutions of all embodiments of the aforementioned vehicle rear bumper support mounting structure, it possesses at least all the beneficial effects of the technical solutions of the aforementioned embodiments, and therefore, no further elaboration is required here.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vehicle rear bumper bracket mounting structure, characterized in that: include: A rear panel assembly includes a rear panel inner panel and a rear panel outer panel, wherein the rear panel inner panel includes an inner panel main section, and the rear panel outer panel includes an outer panel main section, wherein at least one of the inner panel main section and the outer panel main section is bent away from the other, and the upper and lower ends of the inner panel main section and the outer panel main section are correspondingly connected to enclose a cavity; and An intermediate bracket is extended in the up-down direction, and the upper end of the intermediate bracket is fixedly connected to the rear side of the outer panel main section; The intermediate bracket includes a main body and a bent portion, the main body extending in the up-down direction, the upper end of the main body connected to one end of the bent portion and arranged at a certain angle, and the bent portion is welded to the lower side of the outer plate main section; The rear outer panel further includes an outer panel extension section extending downward from the lower end of the outer panel main section, and the main body is mounted on the rear side of the outer panel extension section and is in contact with the outer panel extension section; The rear panel assembly further includes a lock mounting plate, the lock mounting plate being mounted in the cavity and arranged in parallel with the inner panel main section, a lock plate extension portion extending downwardly being provided at the lower end of the lock mounting plate, the lock plate extension portion being mounted on the front side of the outer panel extension section, the lock plate extension portion, the outer panel extension section and the main section being welded to form a first welding area; The rear inner panel includes an inner panel extension section extending downward from the lower end of the inner panel main section. The inner panel extension section is provided with a first avoidance hole at the first welding area. The inner panel extension section, the outer panel extension section and the main body are welded to form a second welding area.

2. The vehicle rear bumper bracket mounting structure according to claim 1, characterized in that: The second welding area is located below the first welding area and spaced apart from the first welding area. A second avoidance hole is formed between the first welding area and the second welding area of the main body.

3. The vehicle rear bumper bracket mounting structure according to claim 1, characterized in that: The vehicle rear bumper bracket installation structure further includes: a rear longitudinal beam, the rear end of which is fixedly connected to one side of the rear outer panel in the left-right direction; and The side brackets are fixedly connected to the outer panel extension section and the rear longitudinal beam respectively.

4. The vehicle rear bumper bracket mounting structure according to claim 3, characterized in that: The rear outer panel further includes an outer panel extension section extending downward from the lower end of the outer panel main section, a rear longitudinal beam extension plate extending in the up-down and left-right directions is provided at the rear end of the rear longitudinal beam, and the lower end of the outer panel extension section is fixedly connected to the rear longitudinal beam extension plate; The side bracket extends in the up-down direction, the side bracket is welded to the outer panel extension section to form a third welding area, and the side bracket is welded to the rear longitudinal beam extension plate bracket to form a fourth welding area.

5. The vehicle rear bumper bracket mounting structure according to claim 4, characterized in that: The third welding area is located above the fourth welding area and spaced apart from the fourth welding area. A third avoidance hole is formed between the third welding area and the fourth welding area of the side bracket.

6. A vehicle, characterized in that: It comprises the vehicle rear bumper bracket mounting structure according to any one of claims 1 to 5.

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