A rear bumper mounting structure and a rear bumper assembly having the same

Abstract

The utility model relates to the field of rear protection mounting structure, and specifically is a kind of rear protection mounting structure and the rear protection assembly with the mounting structure of this, the mounting structure is arranged on rear protection body;The mounting structure includes the end mounting mechanism of being arranged in the end of rear protection body;The end mounting structure includes integral mounting frame;Integral mounting frame includes frame main body, and the frame main body two ends are respectively pressed on the upper end web or lower end web of adjacent rear protection body;The utility model can be well guaranteed the structural strength of rear protection body end by the use of integral mounting frame, avoid the problem that traditional rear protection end mounting structure rigidity is insufficient, modal is low;The utility model avoids that traditional rear protection end is mostly connected with vehicle body by adopting integral mounting frame, and the installation point layout is dispersed, does not form effective closed force transmission path, leading to the problem that end structure rigidity is low, modal frequency is low.

Description

Technical Field

[0001] This utility model relates to the field of rear bumper mounting structures, specifically a rear bumper mounting structure and a rear bumper assembly having the mounting structure. Background Technology

[0002] With the continuous advancement of lightweight and modular design in automobiles, the rear bumper assembly (rear bumper assembly) is an important component of the automotive exterior system, and its structural design and assembly methods are receiving increasing attention.

[0003] The rear bumper assembly generally includes the rear bumper body; traditional rear bumper bodies have problems such as insufficient rigidity of the mounting structure and low modal performance at the end.

[0004] Traditional rear bumper ends often use distributed brackets to connect to the vehicle body. The installation points are scattered and do not form an effective closed force transmission path, resulting in low structural stiffness and low modal frequency at the end. This makes it easy to cause resonance and excessive surface difference (>0.5 mm) during high-speed driving or low-speed collisions, increasing maintenance costs.

[0005] The existing patent CN120327432 A - A rear bumper assembly does not explicitly disclose the technical content that solves the above-mentioned technical problems.

[0006] Therefore, in order to improve or solve at least one of the above technical problems, it is necessary to directly optimize the design of the existing rear protection installation. Utility Model Content

[0007] The purpose of this invention is to provide a rear bumper mounting structure that can increase the structural strength of the rear bumper body's end structure.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rear bumper mounting structure is disposed on the rear bumper body; The mounting structure includes an end mounting mechanism disposed at the end of the rear guard body; The end mounting structure includes an integral mounting frame; The integral installation frame includes a frame body, and the two ends of the frame body respectively press against the adjacent upper or lower connecting plate on the rear guard body.

[0009] One end of the integral mounting frame is snapped into the upper connecting plate on the rear bumper body, and the other end is connected to the lower connecting plate on the rear bumper body by fasteners.

[0010] The integral mounting frame also includes a protruding bracket on the frame body, which is connected to the vehicle body frame.

[0011] The main frame has a grid-like structure; the main frame is fitted to the inner side of the rear retainer.

[0012] The mounting structure further includes an upper edge mounting mechanism; the upper edge mounting mechanism includes an upper mounting bracket; the upper mounting bracket includes a bracket body, and the bracket body is provided with a snap-fit ​​unit.

[0013] The bracket body is provided with a limiting unit, which includes a longitudinal limiting unit and a lateral limiting unit; the longitudinal limiting unit includes a longitudinal mounting plate disposed on the bracket body, the longitudinal mounting plate including a longitudinal first plate and a longitudinal second plate; the longitudinal second plate is connected to the bracket body through the longitudinal first plate; the longitudinal mounting plate is an inverted L-shaped plate; the longitudinal mounting plate is mounted on the upper connecting plate in the rear bumper body; the lateral limiting unit includes a longitudinal limiting plate disposed on the longitudinal L-shaped plate and a snap-fit ​​groove disposed on the upper connecting plate in the rear bumper body.

[0014] A rear bumper assembly, a rear bumper unit, the rear bumper unit including a rear bumper body, the rear bumper body being provided with the rear bumper mounting structure; The rear protection body includes a rear protection main body; the rear protection main body includes a rear protection substrate; The rear bumper body also includes a connecting plate unit disposed on the rear bumper base, the connecting plate unit including an upper connecting plate and a lower connecting plate disposed on the rear bumper base.

[0015] The advantages of this utility model are: This utility model discloses a rear bumper mounting structure and a rear bumper assembly having the mounting structure.

[0016] This invention, through the use of an integral mounting frame, can effectively ensure the structural strength of the rear bumper body end, avoiding the problems of insufficient rigidity and low modal performance of traditional rear bumper end mounting structures.

[0017] Meanwhile, by adopting an integrated mounting frame, this utility model avoids the problems of low end structural stiffness and low modal frequency caused by the traditional rear bumper end using decentralized brackets connected to the vehicle body, resulting in a scattered installation point layout and failure to form an effective closed force transmission path. Attached Figure Description

[0018] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings: Figure 1 This is a schematic diagram of the integral mounting frame in this utility model.

[0019] Figure 2 This is a first-view structural schematic diagram of the upper mounting bracket in this utility model.

[0020] Figure 3 This is a first-view structural schematic diagram of the upper mounting bracket in this utility model.

[0021] Figure 4 This is a schematic diagram of the structure when the rear retainer body is connected to the mounting structure in this utility model.

[0022] The markings in the above figures are all: 1. End mounting mechanism; 2. Upper edge mounting mechanism; 6. Rear guard body. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0024] A rear bumper mounting structure is provided, wherein the mounting structure is disposed on the rear bumper body; the mounting structure includes an end mounting mechanism disposed at the end of the rear bumper body; the end mounting structure includes an integral mounting frame; the integral mounting frame includes a frame body, the two ends of which respectively press against adjacent upper or lower connecting plates on the rear bumper body; this utility model, through the use of an integral mounting frame, can effectively ensure the structural strength of the end of the rear bumper body, avoiding the problems of insufficient rigidity and low modal characteristics of traditional rear bumper end mounting structures.

[0025] Meanwhile, by adopting an integrated mounting frame, this utility model avoids the problems of low end structural stiffness and low modal frequency caused by the traditional rear bumper end using decentralized brackets connected to the vehicle body, resulting in a scattered installation point layout and failure to form an effective closed force transmission path.

[0026] A rear bumper assembly, a rear bumper unit, the rear bumper unit including a rear bumper body 6, the rear bumper body 6 including a rear bumper base 61; in this utility model, the rear bumper body 6 further includes a connecting plate unit disposed on the rear bumper base 61, the connecting plate unit including an upper connecting plate 64 and a lower connecting plate 65 disposed on the rear bumper base 61; the rear bumper body 6 is provided with a mounting structure; the mounting structure includes an end mounting mechanism 1 disposed at the end of the rear bumper body 6; the end mounting mechanism 1... The mounting structure includes an integral mounting frame 11; the integral mounting frame 11 includes a frame body 101, the two ends of which respectively press against the upper connecting plate 64 or the lower connecting plate 65 adjacent to the rear bumper body 6; in this utility model, the rear bumper body 61 is provided with an upper connecting plate 64 and a lower connecting plate 65, the upper connecting plate 64 and the lower connecting plate 65 are essentially a flange, making the vertical cross section of the rear bumper body similar to a [-shape]; this setting facilitates the limitation of the installation position of the integral mounting frame 11.

[0027] Specifically, in this utility model, the two ends of the integral mounting frame 11 press against the upper connecting plate 64 and the lower connecting plate 65 of the rear bumper base 61, respectively, so that the rear bumper end forms a simply supported beam force system; two connecting plates are integrally formed on the upper and lower edges of the rear bumper base 61, and the two ends of the single-piece grid-like integral mounting frame 11 simultaneously press against the two connecting plates, so that the rear bumper end forms a simply supported beam self-centering system, thereby reducing the tail surface difference to ≤0.2 mm and the maintenance cost to ↓50% or more under thermal expansion and contraction and low-speed collision conditions.

[0028] The upper connecting plate 64 and the lower connecting plate 65 are integrally injection molded with the rear bumper base 61, which not only facilitates the subsequent installation of the rear bumper assembly, but also facilitates its use in conjunction with the integral mounting frame 11. In the future, it can also be used to diffuse the concentrated force transmitted from the frame to the rear bumper base 61 in the form of surface pressure.

[0029] In this utility model, the connecting plate unit mainly includes an upper connecting plate 64 and a lower connecting plate 65; in this utility model, the upper connecting plate 64 and the lower connecting plate 65 are provided on the rear support base 61; the upper connecting plate 64 and the lower connecting plate 65 provide local reinforcement, form installation support points, and transfer loads; and provide a "pressure-resistant interface" for the subsequent installation structure.

[0030] In this utility model, the end mounting mechanism 1 mainly includes an integral mounting frame 11; the integral mounting frame 11 is essentially a mounting bracket, which realizes the rigid connection between the rear bumper assembly and the end of the vehicle body; and undertakes the function of the main mounting point.

[0031] The integral mounting frame 11 includes a frame body 101 (grid-like / integrated); spanning the rear retainer body 6 area, it disperses concentrated forces and avoids local stress concentration; it increases modal frequency and suppresses vibration.

[0032] In subsequent use, the integral mounting frame 11 is installed on the vehicle body, and then the rear bumper assembly is installed on the vehicle body.

[0033] The integral mounting frame 11 presses against the rear bumper body; the pressing structure allows for a certain range of sliding / compression deformation, achieving pre-positioning before bolt tightening; the frictional contact between the connecting plate unit and the frame body 101 serves as a temporary fixation, reducing the need for tooling fixtures; the integral frame reinforces the rear bumper body in 6 sections to avoid low-frequency resonance.

[0034] Furthermore, in this utility model, one end of the integral mounting frame 11 is snapped onto the upper connecting plate 64 on the rear bumper body 6, and the other end is connected to the lower connecting plate 65 on the rear bumper body 6 by fasteners; the upper connecting plate 64 is snapped onto the upper connecting plate 64 on the rear bumper body 6 by multiple buckles, while the lower connecting plate 65 is attached to the lower connecting plate 65 on the rear bumper body 6, and then, with the fasteners, the integral mounting frame 11 is fixedly installed on the rear bumper body.

[0035] During subsequent installation, the integral mounting frame 11 is required to be installed onto the vehicle body first, usually by fasteners.

[0036] During subsequent installation, the lower end of the rear bumper unit overlaps with the lower connecting plate 65, and the upper end of the rear bumper unit is connected to the slot of the upper connecting plate 64, thereby realizing the installation connection between the rear bumper unit and the integral frame.

[0037] Furthermore, the integral mounting frame 11 described in this utility model also includes a protruding bracket 12 provided on the frame body 101, the protruding bracket 12 being connected to the vehicle frame; the protruding bracket 12 has a protruding design on the integral mounting frame 11, and can be inserted into the vehicle frame during subsequent use, thereby achieving the stability of the rear bumper assembly installation. In order to facilitate the accuracy and stability of the rear bumper assembly installation position, a groove structure can be provided on the vehicle frame of this utility model; to facilitate the insertion, installation and positioning of the integral mounting frame 11.

[0038] Furthermore, in this utility model, the frame body 101 has a grid-like structure; the frame body 101 is arranged in close contact with the inner side of the rear bumper body 6; the frame body 101 of this utility model adopts a grid-like structure, which not only ensures the structural strength of the frame body 101, but also helps to reduce the weight of the integral mounting frame. In addition, in this utility model, the frame body 101 is arranged in close contact with the inner side of the rear bumper body 6; based on this design, the contact area between the integral mounting frame 11 and the rear bumper body is well guaranteed; this setting makes the integral mounting frame 11 act as a reinforcing member, better ensuring the structural strength of the rear bumper assembly end.

[0039] Furthermore, the mounting structure described in this utility model also includes an upper edge mounting mechanism 2; the upper edge mounting mechanism 2 is mainly arranged on the upper end of the rear bumper body; it acts as a front-end connector and a hook, and is used in conjunction with the end mounting mechanism 1 to better ensure the installation and fixation of the rear bumper assembly on the vehicle body.

[0040] Specifically, the upper mounting mechanism 2 in this utility model includes an upper mounting bracket 201; the upper mounting bracket 201 is the main structure of the upper mounting mechanism 2 in this utility model, and the upper mounting bracket 201 includes a bracket body 21, on which a buckle unit is provided; the bracket body 21 is provided with a limiting unit, which includes a longitudinal limiting unit and a transverse limiting unit; the buckle unit is mainly a buckle block on the bracket body 21, which facilitates the buckling with the rear bumper body.

[0041] In this utility model, the limiting unit plays a good role in installation limiting. The longitudinal limiting unit includes a longitudinal mounting plate 22 disposed on the bracket body 21. The longitudinal mounting plate 22 includes a longitudinal first plate 221 and a longitudinal second plate 222. The longitudinal second plate 222 is connected to the bracket body 21 through the longitudinal first plate 221. The longitudinal mounting plate 22 is an inverted L-shaped plate. The longitudinal mounting plate 22 is mounted on the upper connecting plate 64 in the rear support body 6. The lateral limiting unit includes a longitudinal... The longitudinal limiting plate on the L-plate and the snap-fit ​​groove on the upper connecting plate 64 of the rear bumper body 6; the longitudinal hanging plate 22 of this utility model forms an inverted hook structure, and in subsequent use, the longitudinal hanging plate 22 is hung upside down on the upper connecting plate 64; in this utility model, the longitudinal limiting plate is set on the inner wall of the longitudinal hanging plate 22; one function is to increase the structural strength of the longitudinal hanging plate 22, and another function is to act as a limiting component, which can cooperate with the snap-fit ​​groove on the rear bumper body to realize the installation limitation between the upper mounting bracket 201 and the rear bumper body.

[0042] In this utility model, the rear bumper body is provided with two end mounting mechanisms 1 and two upper edge mounting mechanisms 2; the two end mounting mechanisms 1 are distributed at both ends of the rear bumper body, while the upper edge mounting mechanisms 2 are located in the middle area of ​​the upper end of the rear bumper body.

[0043] Obviously, the specific implementation of this utility model is not limited to the above-mentioned methods. Any non-substantial improvements made using the inventive concept and technical solution of this utility model are within the protection scope of this utility model.

Claims

1. A rear protection installation structure characterized by comprising: The mounting structure is installed on the rear protection body; The mounting structure includes an end mounting mechanism disposed at the end of the rear guard body; The end mounting structure includes an integral mounting frame; The integral installation frame includes a frame body, and the two ends of the frame body respectively press against the adjacent upper or lower connecting plate on the rear guard body.

2. The rear-use mounting structure according to claim 1, characterized by One end of the integral mounting frame is snapped into the upper connecting plate on the rear bumper body, and the other end is connected to the lower connecting plate on the rear bumper body by fasteners.

3. The rear-mounted support structure according to claim 2, characterized in that, The integral mounting frame also includes a protruding bracket on the frame body, which is connected to the vehicle body frame.

4. The rear-mounted support structure according to claim 2, characterized in that, The main frame has a grid-like structure; the main frame is fitted to the inner side of the rear retainer.

5. The rear-mounted support structure according to claim 1, characterized in that, The mounting structure further includes an upper edge mounting mechanism; the upper edge mounting mechanism includes an upper mounting bracket; the upper mounting bracket includes a bracket body, and the bracket body is provided with a snap-fit ​​unit.

6. The rear-mounted support structure according to claim 5, characterized in that, The bracket body is provided with a limiting unit, which includes a longitudinal limiting unit and a lateral limiting unit; the longitudinal limiting unit includes a longitudinal mounting plate disposed on the bracket body, the longitudinal mounting plate including a longitudinal first plate and a longitudinal second plate; the longitudinal second plate is connected to the bracket body through the longitudinal first plate; the longitudinal mounting plate is an inverted L-shaped plate; the longitudinal mounting plate is mounted on the upper connecting plate in the rear bumper body; the lateral limiting unit includes a longitudinal limiting plate disposed on the longitudinal L-shaped plate and a snap-fit ​​groove disposed on the upper connecting plate in the rear bumper body.

7. A rear bumper assembly, characterized in that, A rear protection unit, the rear protection unit including a rear protection body, the rear protection body being provided with a rear protection mounting structure as described in any one of claims 1-6; The rear protection body includes a rear protection main body; the rear protection main body includes a rear protection substrate; The rear bumper body also includes a connecting plate unit disposed on the rear bumper base, the connecting plate unit including an upper connecting plate and a lower connecting plate disposed on the rear bumper base.

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