Suspension mounting bracket structure and automobile

Abstract

The application relates to the technical field of automobile structures, and discloses a suspension mounting support structure and an automobile. The suspension mounting support structure comprises a suspension mounting reinforcing support. The suspension mounting reinforcing support is connected with a suspension support and a front subframe mounting point through the reinforcing support, so that the reinforcing support mounted in a cantilever mode is greatly supported at the cantilever end. Through reasonable structural design, the front compartment longitudinal beam is connected with the front subframe through the reinforcing support, and the front end connecting rigidity is greatly increased. The application can solve the problem of low suspension dynamic stiffness, increase the rigidity of the suspension mounting point, improve the dynamic stiffness of the passive side of the suspension and the sensitivity of the in-vehicle noise, and improve the NVH performance.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile structure, and particularly relates to a suspension mounting bracket structure and an automobile. BACKGROUND

[0002] In traditional automobile design, the layout and mounting position of suspension brackets have a crucial impact on the dynamic performance and NVH (Noise, Vibration, and Harshness) performance of the vehicle. Typically, left and right suspension brackets are carefully placed above or beside the vehicle's longitudinal beams. This design aims to ensure the stability and efficiency of the suspension system. However, when the suspension mounting position is set beside the longitudinal beam, a series of potential challenges arise. Specifically, the design of side-mounted suspension mounting points results in a relatively long cantilevered portion. A too-long cantilevered portion means that this part is more prone to bending and twisting when subjected to vibrations or impacts, which in turn leads to a decrease in the dynamic stiffness of the suspension mounting point. Dynamic stiffness measures a structure's ability to resist deformation under dynamic loads, and lower dynamic stiffness means that the structure is more prone to deformation under vibrations or impacts, which will adversely affect the vehicle's ride stability and ride comfort.

[0003] When the dynamic stiffness of the suspension mounting point is poor, the vehicle faces a serious problem: vibrations and noises are more easily transmitted through the suspension system to the interior of the vehicle. This is because poor dynamic stiffness means that the suspension system lacks sufficient elasticity and damping to effectively isolate and reduce vibrations and noises from the road. These unprocessed vibrations and noises, like unobstructed waves, directly impact the vehicle body structure and are then transmitted to every corner of the vehicle interior.

[0004] Inside the vehicle, passengers can clearly feel these vibrations and noises from the road. They not only disrupt the otherwise quiet ride environment, but also can cause passengers to feel uncomfortable and tired. In the long run, the passenger's ride experience will be greatly compromised, and the satisfaction with the vehicle will also decrease.

[0005] More seriously, poor NVH performance also negatively impacts the overall quality perception of the vehicle. In the eyes of consumers, a high-quality car should not only have excellent power performance and handling stability, but also provide a quiet and comfortable ride environment. However, when the NVH performance of the vehicle is poor, consumers may think that the car has flaws in design and manufacturing, thereby questioning its overall quality.

[0006] In the fierce automobile market, consumers have higher and higher requirements for the quality and performance of vehicles. If a vehicle has obvious deficiencies in NVH performance, it may be at a disadvantage in market competition, and even face the risk of being eliminated by the market. Therefore, automobile manufacturers must pay great attention to the dynamic stiffness of the suspension mounting point, take effective measures to improve the vibration isolation and noise reduction capability of the suspension system, ensure that the vehicle has excellent NVH performance, and improve the overall quality and market competitiveness of the vehicle. SUMMARY

[0007] The purpose of the present application is to overcome the above problems, provide a suspension mounting bracket structure and a car, solve the problem of low suspension dynamic stiffness, enhance the stiffness of the suspension mounting point, improve the dynamic stiffness of the passive side of the suspension and the noise sensitivity in the car, and improve the NVH performance.

[0008] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0009] The present application provides a suspension mounting bracket structure, comprising a reinforcing bracket, the upper end of the reinforcing bracket is provided with a first bolt through hole, the reinforcing bracket is detachably connected with the suspension bracket through the first bolt through hole, the lower end of the reinforcing bracket is provided with a second bolt through hole, the reinforcing bracket is detachably connected with the front subframe through the second bolt through hole, and the reinforcing bracket is used for supporting the suspension bracket.

[0010] Further improvement of the present application is that the suspension bracket is detachably connected with the front compartment longitudinal beam, and the suspension bracket is located on the side surface of the front compartment longitudinal beam.

[0011] Further improvement of the present application is that the front compartment longitudinal beam is connected with the suspension bracket through screwing.

[0012] Further improvement of the present application is that the front compartment longitudinal beam is connected with the reinforcing bracket and the front subframe through bolts.

[0013] Further improvement of the present application is that the suspension bracket is provided with a connecting lug away from the side surface of the front compartment longitudinal beam, and a U-shaped groove is formed in the upper end of the reinforcing bracket, and the U-shaped groove is engaged with the connecting lug.

[0014] Further improvement of the present application is that the reinforcing bracket is made of aluminum alloy material.

[0015] Further improvement of the present application is that the reinforcing bracket is connected with the suspension bracket through the first bolt through hole.

[0016] Further improvement of the present application is that the reinforcing bracket is connected with the front subframe through the second bolt through hole.

[0017] The front subframe is provided with a groove, and the lower end of the reinforcing support is provided with a second bolt through hole protruding downward, which is clamped with the groove.

[0018] The application further provides an automobile comprising the suspension mounting support structure.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] The first bolt through hole is arranged at the upper end of the reinforcing support, the second bolt through hole is arranged at the lower end of the reinforcing support, the reinforcing support is detachably connected with the suspension support through the first bolt through hole, and the reinforcing support is detachably connected with the front subframe through the second bolt through hole, so that the performance of the suspension system can be flexibly adjusted during production, maintenance and modification of the vehicle, and the suspension mounting point is provided with additional support and rigidity by the reinforcing support, thereby improving the stability and durability of the suspension system.

[0021] Further, the reinforcing support is made of an aluminum alloy material and is formed by extrusion molding, so that the reinforcing support is simple in structure, easy to manufacture and light in weight, and the weight is reduced by 20% compared with a traditional punched steel plate, which is beneficial to the lightweight of the vehicle.

[0022] The application further provides an automobile comprising the suspension mounting support structure, so that the rigidity of the suspension mounting point is improved, the risk of resonance is avoided, the NVH performance of the vehicle is significantly improved, passengers can have a more quiet and comfortable riding experience, the stability of the suspension system is further improved, the service life of the suspension mounting support is prolonged, and the maintenance cost of the vehicle is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings described herein are only for illustrative purposes, and are not intended to limit the scope of the present application in any way. In addition, the shapes and scale sizes of the components in the drawings are only illustrative, and are used to help understand the present application, and are not specific limitations on the shapes and scale sizes of the components.

[0024] Figure 1 It is a schematic diagram of the suspension mounting support structure of the present application as a whole;

[0025] Figure 2 It is a side view of the suspension mounting support structure of the present application;

[0026] Figure 3 It is an enlarged view of the details of the suspension mounting support structure of the present application.

[0027] 1, front compartment longitudinal beam; 2, suspension support; 3, reinforcing support; 4, front subframe; 5, first bolt through hole; 6, second bolt through hole. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some, but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work fall within the scope of protection of the present application.

[0030] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The present application will be described in further detail below with reference to the drawings:

[0035] Embodiment

[0036] In combination with the background mentioned above, the current suspension mounting bracket structure has some problems, such as: when the suspension is mounted on the side of the longitudinal beam, the cantilever part of the suspension mounting point is relatively long, and when subjected to vibration or impact, it is easy to bend and twist, thereby reducing the dynamic stiffness of the suspension mounting point, so a new structure needs to be found to solve this problem.

[0037] In order to solve the above technical problems, the embodiment of the present application provides a suspension mounting bracket structure and a car.

[0038] As shown in Figure 1 The embodiment provides a suspension mounting bracket, which comprises a suspension bracket 2 and a reinforcing bracket 3, wherein the upper end of the reinforcing bracket 3 is detachably connected with the suspension bracket 2. This detachable connection makes the connection and separation process between the reinforcing bracket 3 and the suspension bracket 2 simple and rapid, greatly improving the work efficiency, while ensuring the tightness and stability of the connection. The reinforcing bracket 3 is used to enhance the stability of the suspension mounting and reduce vibration.

[0039] In the embodiment, the lower end of the reinforcing bracket 3 is detachably connected with the front subframe 4, and the reinforcing bracket 3, the suspension bracket 2 and the front subframe 4 form an integral support structure. The overall strength of the support structure is significantly improved, which can ensure the stability and safety of the vehicle under various road conditions and driving conditions, and can better resist deformation and twisting, improving the handling and stability of the vehicle.

[0040] In the embodiment, the suspension bracket 2 is detachably connected with the front compartment longitudinal beam 1. This design reduces the waste of working hours caused by long-term disassembly and installation, and reduces the risk of damage caused by improper operation. Moreover, it can adapt to the connection requirements between the front compartment longitudinal beam 1 and the suspension bracket 2 of different vehicle models and different configurations, meet different application scenarios, and the detachable connection design of the front compartment longitudinal beam 1 as an important component of the engine compartment frame of the car and the suspension bracket 2 can fully utilize the structural strength to improve the stability and reliability of the entire support structure.

[0041] In the embodiment, the suspension bracket 2 is fixed on the side of the front compartment longitudinal beam 1, which can effectively support and fix the suspension system, ensuring the stability and safety of the vehicle.

[0042] In this embodiment, the front subframe 4 is detachably connected to the front bay longitudinal beam 1, and the front subframe 4 can help to disperse and absorb the impact and vibration from the road surface, thereby improving the driving comfort and stability of the vehicle. The front bay longitudinal beam 1 is a part of the vehicle body structure, which is used to support and protect the front structure of the vehicle, and when a collision occurs, the front bay longitudinal beam 1 will deform and absorb the collision energy to reduce the impact transmitted to the passenger compartment. Detachable connection means that the connection between the front subframe 4 and the front bay longitudinal beam 1 allows them to be separated without damaging any components, and this type of connection is usually achieved using bolts, pins or other types of detachable fasteners.

[0043] In this embodiment, as shown in Figure 2 , the front bay longitudinal beam 1 is assembled with the suspension bracket 2, and the reinforcing bracket 3 is assembled with the front bay longitudinal beam 1, the front subframe 4 and the suspension bracket 2, respectively. The assembly is detachably connected, and the reinforcing bracket 3 is assembled with the front bay longitudinal beam 1, the front subframe 4 and the suspension bracket 2 through detachable connection, which can enhance the stiffness of the suspension mounting point and improve the dynamic stiffness of the passive side of the suspension.

[0044] In this embodiment, as shown in Figure 3 , the first bolt through hole 5 is provided at the upper end of the reinforcing bracket 3, and the first bolt through hole 5 is bolted with the suspension bracket 2. Through bolt connection, the reinforcing bracket 3 and the suspension bracket 2 can be conveniently installed and disassembled, and this type of connection can withstand forces and vibrations from all directions, thereby maintaining the stability and reliability of the entire support structure.

[0045] In this embodiment, the second bolt through hole 6 is provided at the lower end of the reinforcing bracket 3, and the second bolt through hole 6 is bolted with the front subframe 4. The bolt connection allows for some degree of adjustment, which can easily check whether it is loose, damaged or needs to be replaced. Through appropriate bolt connection, it can ensure that the connection between the reinforcing bracket 3 and the front subframe 4 is stable enough to withstand various forces and vibrations generated during the operation of the vehicle, thereby enhancing the safety performance of the vehicle.

[0046] The present application will be further explained in conjunction with a group of examples and the accompanying drawings:

[0047] As shown in Figure 1 and Figure 2 , the reinforcing bracket 3 is connected with the suspension bracket 2 and the front subframe 4, and the connection is bolted. The reinforcing bracket 3, the suspension bracket 2 and the front subframe 4 form an integral support structure, making the overall assembly more efficient. The suspension bracket 2 is connected with the front subframe 4 through the reinforcing bracket 3, the dynamic stiffness valley of the passive side mounting point of the suspension is improved by 500%, and the noise sensitivity of the passive side mounting point of the suspension is optimized by 20%, which meets the performance target and improves the NVH performance.

[0048] As shown inFigure 1 As shown, the front subframe 4 is provided with a groove, and the lower end of the reinforcing bracket 3 is provided with a second bolt through hole 6 protruding downward, which is engaged with the groove to reliably connect the front subframe 4 and the reinforcing bracket 3.

[0049] For example Figure 2 As shown, the side of the suspension bracket 2 away from the front compartment longitudinal beam 1 is provided with a connecting lug.

[0050] As shown Figure 3 As shown, the reinforcing bracket 3 is made of aluminum alloy material and is formed by extrusion molding, which is simple in structure, easy to manufacture, and light in weight, and the weight is reduced by 20% compared with the traditional stamping steel plate, which is beneficial to the lightweight of the whole vehicle.

[0051] For example Figure 3 As shown, the reinforcing bracket 3 is provided with a first bolt through hole 5 at the upper end and a second bolt through hole 6 at the lower end, and the upper end of the reinforcing bracket 3 is provided with a U-shaped groove which is engaged with the connecting lug to connect the reinforcing bracket 3 and the suspension bracket 2.

[0052] For example Figure 3 As shown, the first bolt through hole 5 at the upper end of the reinforcing bracket 3 is used for bolt installation with the suspension bracket 2, and the second bolt through hole 6 at the lower end of the reinforcing bracket 3 is used for bolt connection with the front subframe 4, so that the suspension bracket 2 installed by cantilever is supported at the cantilever end, the rigidity of the connection is improved, and the mounting point dynamic stiffness and the in-vehicle noise sensitivity are improved, thereby improving the NVH performance.

[0053] In summary, the embodiment provides a suspension mounting bracket structure with high assembly efficiency, which not only connects the suspension bracket 2 and the front subframe 4 through the reinforcing bracket 3, but also uses cast aluminum for the reinforcing bracket 3, which is light in weight, simple in manufacturing process, and high in manufacturing precision, and through reasonable structural design, the front compartment longitudinal beam 1 and the front subframe 4 are connected through the reinforcing bracket 3, the front end connection rigidity is greatly increased, and the vehicle NVH performance is improved.

[0054] The embodiment also provides an automobile with a suspension mounting bracket structure, which improves the rigidity of the suspension mounting point, avoids the risk of resonance, significantly improves the NVH performance of the whole vehicle, provides passengers with a more quiet and comfortable riding experience, further enhances the stability of the suspension system, prolongs the service life of the suspension mounting bracket, and reduces the maintenance cost of the automobile.

[0055] In summary, the present application provides a suspension mounting bracket structure and an automobile, which has the following advantages compared with the existing suspension mounting bracket structure:

[0056] The suspension mounting bracket structure of the present application, by setting a reinforcing bracket 3 between the front subframe 4 and the suspension bracket 2, the reinforcing bracket 3 is bolted with the front subframe 4 and the suspension bracket 2, this detachable connection allows the automobile manufacturer to flexibly adjust the performance of the suspension system during vehicle production, maintenance and modification. The setting of the reinforcing bracket provides additional support and stiffness to the suspension mounting point, thereby improving the stability and durability of the suspension system and the stiffness at the suspension mounting point, which helps to avoid the risk of resonance, thereby improving the NVH performance of the whole vehicle, i.e. improving the driving comfort of the whole vehicle.

[0057] Secondly, the setting of the reinforcing bracket 3 makes the front subframe 4 structure platform, which can meet the requirements of different vehicle models for the target of the suspension mounting point by simply changing the suspension mounting bracket structure without changing the upper and lower plates of the front subframe; compared with the suspension mounting on the side of the longitudinal beam, the connection between the reinforcing bracket 3 and the frame is more stable, reducing the risk of loosening or damage caused by vibration or impact.

[0058] In addition, the design of the present application also takes into account the lightweight demand of the vehicle. The reinforcing bracket 3 is made of lightweight material aluminum alloy to reduce the weight of the whole vehicle. At the same time, by optimizing the structural design of the reinforcing bracket 3, its stiffness and strength can be further improved, thereby improving the performance of the suspension system without increasing the weight. The suspension system not only supports the powertrain, but also plays a limiting role, isolates the vibration of the engine transmitted to the vehicle body, bears the torque and dynamic load output by the powertrain, the setting of the reinforcing bracket 3 enhances the stability and effect of these functions. Due to the improvement of the stiffness and stability of the suspension mounting point, the damage caused by vibration and impact is reduced, thereby prolonging the service life of the suspension mounting bracket.

[0059] In summary, the present application designs a detachable reinforcing bracket 3 on the suspension bracket, and detachably connects the reinforcing bracket 3 with the front subframe 4, which brings significant improvement and convenience to the structural design of the automobile. This design not only improves the stability and durability of the suspension system, but also facilitates the maintenance and replacement of the reinforcing bracket 3, and also takes into account the lightweight demand of the vehicle. Therefore, the present application has wide application prospect and market potential in the automobile industry.

[0060] Many embodiments and many applications other than those described herein will be apparent to those skilled in the art from consideration of the specification and practice of the teachings herein. Therefore, the scope of the present teachings should be determined by the appended claims and equivalents thereof, rather than by the description alone. All articles and references, including patent applications and publications, are incorporated herein by reference for all that they contain. Any aspect of the subject matter disclosed herein that is not recited in the claims is hereby abandoned. Nothing herein is to be construed as an admission that the patentable subject matter is not divisible over the claims.

[0061] The above description is further detailed of the present application, and cannot be considered as limiting the specific embodiments of the present application, and for those skilled in the art, some simple deductions or replacements can be made without departing from the concept of the present application, and all of them shall be considered as falling within the protection scope of the present application as defined by the claims.

Claims

1. A suspension mounting bracket structure, characterized in that, The system includes a reinforcing bracket (3), the upper end of which is provided with a first bolt through hole (5), and the reinforcing bracket (3) is detachably connected to the suspension bracket (2) through the first bolt through hole (5). The lower end of the reinforcing bracket (3) is provided with a second bolt through hole (6), and the reinforcing bracket (3) is detachably connected to the front subframe (4) through the second bolt through hole (6). The reinforcing bracket (3) is used to support the suspension bracket (2). The suspension bracket (2) is detachably connected to the front cabin longitudinal beam (1), and the suspension bracket (2) is located on the side of the front cabin longitudinal beam (1); the front cabin longitudinal beam (1) is connected to the reinforcing bracket (3) and the front subframe (4) by bolts; the suspension bracket (2) is provided with a connecting ear on the side away from the front cabin longitudinal beam (1), and the upper end of the reinforcing bracket (3) is provided with a U-shaped groove, which engages with the connecting ear; the front subframe (4) is provided with a groove, and the lower end of the reinforcing bracket (3) is provided with a downward protruding second bolt through hole (6), which engages with the groove.

2. The suspension mounting bracket structure according to claim 1, characterized in that, The front cabin longitudinal beam (1) is installed with the suspension bracket by bolting.

3. The suspension mounting bracket structure according to claim 1, characterized in that, The reinforcing bracket (3) is made of aluminum alloy.

4. The suspension mounting bracket structure according to claim 1, characterized in that, The reinforcing bracket (3) is bolted to the suspension bracket (2) through the first bolt through hole (5).

5. The suspension mounting bracket structure according to claim 1, characterized in that, The reinforcing bracket (3) is bolted to the front subframe (4) through the second bolt through hole (6).

6. A car, characterized in that, Includes the suspension mounting bracket structure as described in any one of claims 1-5.

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