Universal rear bumper beam assembly for multiple vehicle types and vehicle

Abstract

A universal rear bumper cross beam assembly for multiple vehicle types comprises energy absorption assemblies and a bumper cross beam, the energy absorption assemblies comprise the left energy absorption assembly and the right energy absorption assembly, and the energy absorption assemblies are connected with a left longitudinal beam and a right longitudinal beam of a vehicle body through bolts respectively; the bumper cross beam and the energy absorption assembly are arranged in a split structure and are assembled, connected and fixed to the rear portion of a vehicle body. The energy absorption assembly comprises a vehicle body connecting plate, an energy absorption box and a cross beam connecting plate, and further comprises a tow hook connecting pipe and a reinforcing piece, strip-shaped connecting holes are formed in the two ends of the bumper cross beam, the reinforcing piece can slide in the cross beam, and one end of the reinforcing piece can be connected with the fixing plate through a notch. The utility model further provides a vehicle which comprises the rear bumper beam assembly capable of being universally used for multiple vehicle types. The device is suitable for vehicle types with different widths and different arrangement conditions; the problems that a rear bumper beam assembly is poor in universality, new molds and tools need to be redesigned and manufactured for each vehicle model, and manpower, material resources and resources are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bumper beam assemblies, in particular to a rear bumper beam assembly universal for multiple vehicle models and a vehicle. Background Art

[0002] With the rapid development of the automobile industry, consumers pay more and more attention to the safety performance of automobiles. In the automobile industry, in order to enhance the safety performance of automobiles and reduce the maintenance cost of the longitudinal beams of the vehicle body, bumper beams and energy absorption devices are usually designed at the rear of the vehicle body to ensure that the car can effectively absorb the energy generated by the collision in the event of a low-speed collision, ensure that the main functional parts at the rear of the car can be used, and reduce maintenance costs.

[0003] As the device that bears the impact force for the first time when the vehicle rear-end collides, the currently available rear bumper beam assembly usually consists of a bumper beam, an energy absorption box, a mounting plate and a trailer hook. The mounting plate is fixed to the vehicle body longitudinal beam by bolts, and the bumper beam and the energy absorption box are mainly connected or welded by bolts, and the energy absorption box is welded to the mounting plate. Currently, due to factors such as vehicle width and layout space, different vehicle models are not universal in terms of rear bumper beam assemblies. Each vehicle model needs to be redesigned and a new set of tooling needs to be opened, wasting manpower and material resources.

[0004] CN116279253A relates to a rear anti-collision beam assembly, including a rear longitudinal beam rear body, a rear anti-collision beam body, an energy absorption box, a rear protection mounting end plate connected to the rear longitudinal beam rear body, and a rear anti-collision beam mounting plate connected to the energy absorption box and the rear protection mounting end plate, wherein the energy absorption box includes an energy absorption box upper plate and an energy absorption box lower plate connected to each other, and the energy absorption box upper plate and the energy absorption box lower plate have multiple models with different lengths. The rear anti-collision beam assembly of the utility model can meet the rear collision requirements and improve the versatility by adjusting the position of the rear anti-collision beam and the length of the energy absorption box; thereby shortening the development cycle of vehicle body parts, improving production efficiency, rapidly iterating product upgrades, and improving the platform commonality rate of the vehicle body.

[0005] CN215361242U relates to a lightweight rear bumper crossbeam assembly structure, including a rear bumper crossbeam, wherein the left end of the rear bumper crossbeam is fixedly connected to a left energy absorption box mounting plate by a rivet bolt, the left energy absorption box is fixedly connected to the left energy absorption box mounting plate, and the left energy absorption box is fixedly connected to the left beam assembly left mounting plate; the right end of the rear bumper crossbeam is fixedly connected to a right energy absorption box mounting plate by a rivet bolt, the right energy absorption box is fixedly connected to the right energy absorption box mounting plate, and the right energy absorption box is fixedly connected to the right beam assembly right mounting plate; the material of the rear bumper crossbeam is a carbon fiber composite material, and the materials of the left energy absorption box mounting plate, the left energy absorption box, the left beam assembly left mounting plate, the right energy absorption box mounting plate, the right energy absorption box, and the right beam assembly right mounting plate are all made of aluminum alloy. The utility model solves the problems of the traditional rear bumper crossbeam assembly of a vehicle body being heavy, complicated to repair and replace, and insufficient in economy.

[0006] However, the existing technology does not solve the problem that different car models are affected by factors such as vehicle width and layout space, and the rear bumper crossbeam assembly has poor universality. It needs to be redesigned for each car model and new molds and tooling need to be manufactured, resulting in a waste of manpower, material resources and resources. Utility Model Content

[0007] The utility model aims to provide a rear bumper cross beam assembly and a vehicle that is universal for multiple vehicle models, and is adaptable to vehicle models with different widths and different layout conditions; it solves the problem that the rear bumper cross beam assembly has poor universality and needs to be redesigned for each vehicle model, and new molds and tooling need to be manufactured, resulting in a waste of manpower, material resources and resources.

[0008] The utility model provides the following solutions

[0009] A rear bumper cross beam assembly that is universal for multiple vehicle models includes an energy absorbing assembly and a bumper cross beam, wherein the energy absorbing assembly includes two left and right parts, which are respectively connected to the left and right longitudinal beams of a vehicle body by bolts; the bumper cross beam and the energy absorbing assembly are arranged as separate structures, and are assembled, connected and fixed to the rear part of the vehicle body; the bumper cross beam can be connected to a trailer hook connecting pipe and a reinforcement, the reinforcement can slide in the bumper cross beam, and one end of the reinforcement can be connected to a fixing plate.

[0010] Furthermore, the trailer hook connecting pipe is welded to the bumper beam, and the reinforcement is arranged on both sides of the trailer hook connecting pipe. The reinforcement is arranged inside the bumper beam and can be connected to the inner wall of the bumper beam.

[0011] Furthermore, the cross section of the bumper beam is "C"-shaped, forming a long groove, the reinforcement can slide in the groove, and one end of the reinforcement can pass through the groove to be connected to the fixing plate.

[0012] Furthermore, the energy absorption assembly includes a vehicle body connecting plate, which can be connected to the vehicle body longitudinal beam with bolts, and an energy absorption box is welded on its surface. One end of the energy absorption box is welded to the vehicle body connecting plate, and the other end is welded to a crossbeam connecting plate, and the bumper crossbeam can be connected to the crossbeam connecting plate.

[0013] Furthermore, the bumper beam is connected to the beam connecting plate by bolts, and strip connecting holes are provided at both ends of the bumper beam. The bumper beam can adjust the connection position with the beam connecting plate through the strip connecting holes to adapt to vehicle models of different widths.

[0014] Furthermore, the crossbeam connecting plate is provided with bolt holes, and bolts pass through the strip-shaped connecting holes from the inside of the bumper crossbeam. The bolts can slide in the strip-shaped connecting holes to adjust their positions, and then pass through the bolt holes and are fixed with nuts to complete the connection.

[0015] Furthermore, the fixing plate is provided with a connecting hole matching the trailer hook connecting tube, and the side wall of the bumper beam opposite to the groove is provided with a plurality of through holes matching the trailer hook connecting tube, and the trailer hook connecting tube can pass through the through holes and the connecting holes and be welded to the bumper beam and the fixing plate respectively.

[0016] Furthermore, the reinforcement is welded to the inner wall of the bumper beam after sliding to adjust the position, and is bolted to the fixing plate.

[0017] The utility model also provides a vehicle, comprising the above-mentioned rear bumper cross beam assembly universal for multiple vehicle models.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. Compared with the currently common rear bumper beam assembly, the utility model only needs to cut bumper beams of different lengths according to different vehicle models without redesigning and remanufacturing molds and tooling. While ensuring the relevant requirements of collision safety, it can also adapt to vehicle models with different widths and different layout conditions without opening or opening as few new molds as possible; it improves the modularization and universal design of parts, shortens the development cycle, and saves the development cost of parts and mold costs.

[0020] 2. The bumper beam of the utility model can adjust the connection position with the beam connecting plate through the strip connecting hole, so as to adapt to different width vehicles. When the width of the vehicle body is not much different, the bumper beam of the same specification can be used for assembly, which further saves resource consumption. The bolt connection is convenient for assembly and disassembly, which facilitates the replacement of the bumper beam and further saves manpower and material resources.

[0021] 3. The trailer hook module of the utility model includes a reinforcement structure, and a hole for the trailer hook connecting pipe is reserved in the bumper beam. The trailer hook module and the bumper beam are flexibly and conveniently connected to each other, so that the trailer hook module can be added at any position of the beam. The bumper beam can be partially strengthened without changing the main structure, and only the trailer hook connecting pipe and reinforcement are added to meet the towing-related needs. It can adapt to vehicle models with different trailer hook arrangements, and the installation is flexible and convenient, which further enhances the versatility and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Attached Figure 1 This is a schematic diagram of a rear bumper cross beam assembly that is universal for multiple vehicle models as described in Example 1 of the utility model;

[0024] Attached Figure 2 This is a schematic diagram of the structure of the energy absorption box of the utility model;

[0025] Attached Figure 3 This is a schematic diagram of the connection of the bumper beam described in Example 2 of the utility model;

[0026] Attached Figure 4 This is a schematic diagram of a rear bumper cross beam assembly that is universal for multiple vehicle models as described in Example 3 of the utility model;

[0027] Attached Figure 5 This is a schematic cross-sectional view of the connection of the trailer hook connecting pipe according to Embodiment 3 of the present utility model;

[0028] Attached Figure 6 This is a schematic diagram of the reinforcement member described in Example 3 of the utility model;

[0029] Attached Figure 7 This is a schematic diagram of a rear bumper cross beam assembly that is universal for multiple vehicle models as described in Example 4 of the utility model;

[0030] Attached Figure 8 This is a schematic diagram of the connection between the fixing plate and the reinforcement member described in Example 4 of the utility model.

[0031] In the figure:

[0032] 1-energy absorption assembly, 11-body connecting plate, 12 energy absorption box, 121-energy absorption box connecting plate, 13-cross beam connecting plate, 131-bolt hole, 2-bumper cross beam, 21-strip connecting hole, 22-through hole, 3-trailer hook connecting tube, 4-reinforcement, 41-reinforcement body, 42-welding plate, 43-reinforcement connecting plate, 5-fixing plate, 51-connecting hole, 52-fixing bolt, 53-fixing nut. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0034] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0035] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0036] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0037] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0038] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0039] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0040] Example 1, please refer to Figure 1 , is the rear bumper beam assembly universal for multiple vehicle models described in the utility model, including two left and right energy absorbing assemblies 1 and a bumper beam 2. The bumper beam 2 and the energy absorbing assembly 1 are arranged as separate structures and are assembled, connected and fixed to the rear part of the vehicle body.

[0041] The energy absorption assembly 1 includes a vehicle body connecting plate 11, which is provided with connecting holes and can be connected to the vehicle body longitudinal beam using bolts. An energy absorption box 12 is welded on its surface. One end of the energy absorption box 12 is welded to the vehicle body connecting plate 11, and the other end is welded to a cross beam connecting plate 13. The bumper cross beam 2 can be welded or bolted to the cross beam connecting plate 13.

[0042] The bumper beam 2 is made of metal material, and in this embodiment, it is made of aluminum alloy, and its cross section is "C"-shaped, and can also be in the shape of a sun, a mesh, a field, etc.

[0043] See also Figure 2 The energy absorption box 12 is composed of two energy absorption box connecting plates 121.

[0044] Since the longitudinal beam of the vehicle body and the exit point of the anti-collision beam end plate are generally universal, the energy absorption assembly 1 can be applied to different models of vehicles. When installing the rear bumper beam assembly, the energy absorption assembly 1 is first connected to the longitudinal beam of the vehicle body, and then the bumper beam 2 of different lengths is cut according to the width of different vehicle models, and then the bumper beam 2 is welded or bolted to the beam connecting plate 13. When using the bumper beam assembly provided in this embodiment, it is only necessary to cut the bumper beam 2 of different lengths according to different vehicle models, without having to redesign and re-manufacture the mold and tooling, saving manpower, material and resources.

[0045] Example 2, please refer to Figure 3On the basis of Example 1, the bumper beam 2 is bolted to the beam connecting plate 13, and strip connecting holes 21 are provided at both ends of the bumper beam 2 (one end is shown in the figure, and the other end is symmetrically arranged), and bolt holes 131 are provided on the beam connecting plate 13. The bolts pass through the strip connecting holes 21 from the inside of the bumper beam 2. The bolts can slide in the strip connecting holes 21, adjust the position to align with the bolt holes 131, and then pass through the bolt holes 131 and are fixed on the outside of the beam connecting plate 13 with nuts to complete the connection.

[0046] The bumper beam 2 can adjust the connection position with the beam connecting plate 13 through the strip connecting hole 21, so as to adapt to different width vehicles. When the width of the vehicle body is not much different, the bumper beam 2 of the same specification can be used for assembly, which further saves resource consumption. The bolt connection is convenient for assembly and disassembly, which facilitates the replacement of the bumper beam 2 and further saves manpower and material resources.

[0047] Example 3, please refer to Figure 4 , based on the embodiment 1 or the embodiment 2, further comprising a trailer hook connecting pipe 3 and a reinforcement member 4. Figure 5 When the equipped vehicle needs to be towed, it is also necessary to be equipped with a trailer connecting pipe 3, which is generally arranged within the range of the energy absorption assembly 1. The bumper beam 2 and the beam connecting plate 13 are provided with connecting holes at corresponding positions, and the trailer hook connecting pipe 3 passes through the connecting hole and is welded to the hole wall of the connecting hole; reinforcements 4 are provided on both sides of the trailer hook connecting pipe 3. During towing, the bumper beam needs to bear the weight of the entire towed vehicle, and is prone to bending or torsional deformation or even damage. Therefore, it is necessary to use reinforcements 4 to strengthen the rigidity of the area near the trailer hook connecting pipe 3. The reinforcement 4 is arranged inside the bumper beam 2 and connected to the inner wall of the bumper beam 2.

[0048] The reinforcement member 4 can be integrally formed with the bumper beam 2 or assembled later. In this embodiment, it is preferably assembled later with the "C"-shaped bumper beam 2. Figure 6 , is a schematic diagram of the structure of the reinforcement 4, including a reinforcement body 41, welding plates 42 and a reinforcement connecting plate 43 respectively arranged at the top, bottom and front for welding with the inner wall of the bumper beam 2, the reinforcement connecting plate 43 is connected to the beam connecting plate 13, and welding is preferred in this embodiment, and bolt connection can also be adopted.

[0049] This embodiment modularly connects the energy absorption assembly, the trailer hook connecting pipe and the reinforcement, which can meet the collision and traction performance requirements.

[0050] Example 4, please refer to Figure 7On the basis of Example 3, a through hole 22 matching the trailer hook connection tube 3 is reserved at the common or special trailer hook connection tube 3 arrangement position on the bumper cross beam 2, and two reinforcement members 4 and a fixing plate 5 connected thereto are arranged in the middle of the bumper cross beam 2; the bumper cross beam 2 has a "C"-shaped cross section, forming a long strip-shaped groove, and the reinforcement member 4 can slide in the groove, and one end of the reinforcement member can be connected to the fixing plate through the notch, which can be welded, and bolt connection is preferably used in this embodiment. Please refer to Figure 8 The fixing plate 5 is provided with a connection hole 51 matching the trailer hook connection pipe, the reinforcement 4 is welded to the inner wall of the bumper beam 2, and is bolted to the fixing plate 5. The fixing bolt 52 first passes through the reinforcement connecting plate 43 from the inside of the bumper beam 2, and then passes through the fixing plate 5, and is fixed on the outside of the fixing plate 5 using a fixing nut 53.

[0051] When in use, first loosen the fixing nut 53 to allow the reinforcement 4 to slide in the bumper beam, slide the reinforcement 4 and the fixing plate to the desired position, weld the welding plate 42 of the reinforcement 4 to the inner wall of the bumper beam 2, tighten the fixing nut 53, and finally pass the trailer hook connecting tube 3 through the through hole 22 and the connecting hole 51 to be welded to the bumper beam 2 and the fixing plate 5 respectively, thereby completing the installation of the trailer hook connecting tube 3.

[0052] The rear bumper cross beam assembly provided in this embodiment is universal for multiple vehicle models and can adapt to vehicle models with different trailer hook layout positions. It is also flexible and convenient to install, further enhancing its universality and practicality.

[0053] In summary, the utility model can modularize the design of parts, and can adapt to different vehicle widths through the assembly structure of the energy absorption assembly and the bumper beam; the modular design of the trailer hook structure can be applicable to two types of configurations, with and without a rear tow hook; the trailer hook module includes a reinforcement structure, and the bumper beam reserves a hole for the trailer hook connecting pipe. The trailer hook module and the bumper beam are flexibly and conveniently connected, so that the trailer hook module can be added at any position of the beam. Without changing the main structure, only by adding reinforcements and trailer hook connecting pipes, the beam can be partially strengthened to meet the needs of traction. The utility model improves the modular and universal design of parts, shortens the development cycle, saves the development cost of parts and mold costs, and saves manpower and material resources.

[0054] The utility model also provides a vehicle, including a rear bumper beam assembly universal for multiple vehicle models, comprising the above structure. The specific structure of the rear bumper beam assembly can be referred to Figures 1 to 8 Since the vehicle of the utility model includes the rear bumper cross beam assembly in the above embodiment, it has all the advantages of the above rear bumper cross beam assembly.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rear bumper beam assembly that can be used in multiple vehicle models, characterized in that: The invention comprises an energy absorbing assembly (1) and a bumper beam (2), wherein the energy absorbing assembly (1) comprises two left and right parts, which are respectively connected to the left and right longitudinal beams of the vehicle body by bolts; the bumper beam (2) and the energy absorbing assembly (1) are arranged as separate structures, and are assembled, connected and fixed to the rear part of the vehicle body; the bumper beam (2) can be connected to a trailer hook connecting pipe (3) and a reinforcement member (4), and the reinforcement member (4) can slide in the bumper beam (2), and one end of the reinforcement member (4) is connected to a fixing plate (5).

2. The rear bumper beam assembly applicable to multiple vehicle models according to claim 1 is characterized in that: The trailer hook connecting tube (3) is welded to the bumper cross beam (2), and the reinforcing members (4) are arranged on both sides of the trailer hook connecting tube (3). The reinforcing members (4) are arranged inside the bumper cross beam (2) and can be connected to the inner wall of the bumper cross beam (2).

3. The rear bumper beam assembly applicable to multiple vehicle models according to claim 2 is characterized in that: The cross section of the bumper beam (2) is C-shaped, forming a long strip-shaped groove, the reinforcement (4) can slide in the groove, and one end of the reinforcement (4) can pass through the groove to be connected to the fixing plate (5).

4. The rear bumper beam assembly applicable to multiple vehicle models according to claim 1 is characterized in that: The energy absorption assembly (1) comprises a vehicle body connecting plate (11), the vehicle body connecting plate (11) can be connected to the vehicle body longitudinal beam by bolts, an energy absorption box (12) is welded on the surface of the vehicle body connecting plate (11), one end of the energy absorption box (12) is welded to the vehicle body connecting plate (11), and the other end is welded to a cross beam connecting plate (13), and the bumper cross beam (2) can be connected to the cross beam connecting plate (13).

5. The rear bumper cross beam assembly applicable to multiple vehicle models according to claim 4 is characterized in that: The bumper cross beam (2) is bolted to the cross beam connecting plate (13), and strip-shaped connecting holes (21) are provided at both ends of the bumper cross beam (2). The bumper cross beam (2) can adjust the connection position with the cross beam connecting plate (13) through the strip-shaped connecting holes (21), thereby adapting to vehicle models with different widths.

6. The rear bumper cross beam assembly applicable to multiple vehicle models according to claim 5 is characterized in that: The cross beam connecting plate (13) is provided with a bolt hole (131), and a bolt passes through the strip-shaped connecting hole (21) from the inside of the bumper cross beam (2). The bolt can slide in the strip-shaped connecting hole (21) to adjust the position, and then pass through the bolt hole (131) and be fixed with a nut, thereby completing the connection.

7. The rear bumper cross beam assembly applicable to multiple vehicle models according to claim 3 is characterized in that: The fixing plate (5) is provided with a connection hole (51) matching the trailer hook connection tube (3); the side wall of the bumper cross beam (2) opposite to the notch is provided with a plurality of through holes (22) matching the trailer hook connection tube (3); the trailer hook connection tube (3) can pass through the through holes (22) and the connection holes (51) to be welded to the bumper cross beam (2) and the fixing plate (5) respectively.

8. The rear bumper cross beam assembly applicable to multiple vehicle models according to claim 3 is characterized in that: The reinforcement member (4) is welded to the inner wall of the bumper beam (2) after sliding to adjust the position, and is bolted to the fixing plate (5).

9. A vehicle, characterized in that: The invention comprises a rear bumper cross beam assembly universal for multiple vehicle models as described in any one of claims 1 to 8.

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