A suspension mounting structure for reducing vehicle width and its body layout structure

By changing the suspension mounting structure from the floor crossbeam to the sill beam in new energy vehicles, and by combining the arrangement of the body longitudinal beams and side longitudinal beams, and optimizing the design of the suspension mounting brackets and bolt guide sleeves, the problem of excessive fuel or electricity consumption caused by excessive vehicle width has been solved, and the lightweighting and strength improvement of the body structure have been achieved.

CN119058818BActive Publication Date: 2025-10-28DONGFENG MOTOR GRP
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Patent Information

Application Number
CN202411349431.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-10-28
Estimated Expiration
2044-09-26

AI Technical Summary

Technical Problem

How to reduce the width of new energy vehicles to lower fuel or electricity consumption while ensuring vehicle safety performance, especially when the battery pack size is fixed, and improve the lightweight design of the vehicle body structure.

Method used

The vehicle body suspension mounting structure was changed from the floor crossbeam to be installed on the door sill beam and fixed by the suspension mounting bracket and bolt and nut structure. Combined with the arrangement of the vehicle body longitudinal beams and side longitudinal beams, the design of the suspension mounting bracket and bolt guide sleeve was optimized to enhance the strength of the fixing structure and reduce the distance between the left and right door sill beams.

Benefits of technology

Without changing the suspension spacing, the vehicle width is reduced, the space occupied by the vehicle is reduced, and fuel or electricity consumption is reduced. At the same time, the structural strength and installation convenience of the suspension installation are improved, the dimensional consistency of the vehicle floor is optimized, and the size of the widest part of the vehicle is minimized.

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Abstract

This invention discloses a vehicle mount structure and its body layout structure for reducing vehicle width. The structure includes a vehicle mount, a vehicle longitudinal beam, a side longitudinal beam, and a sill beam. The vehicle mount is vertically and detachably fixed to the underside of the sill beam via a mount mounting bracket and a bolt and nut structure. The mount mounting bracket includes a lower mount fixed to the underside of the sill beam and internally connected to the vehicle longitudinal beam, and an upper mount fixed to the top of the sill beam and internally connected to the side longitudinal beam. The bolt and nut structure includes a mount fixing nut fixed within the upper mount and a mount fixing bolt threaded through the vehicle mount and sill beam and threadedly connected to the mount fixing nut. By mounting the vehicle mount on the sill beam, replacing the existing structure where the vehicle mount is mounted on the floor crossbeam, the distance between the left and right sill beams is reduced while maintaining the same left and right mount spacing, thereby reducing vehicle width and space occupied by the vehicle.
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Description

Technical Field

[0001] This invention relates to the field of vehicle body structure technology, specifically to a suspension mounting structure for reducing vehicle width and its vehicle body layout structure. Background Technology

[0002] With the development of automotive technology and the gradual improvement of people's living standards, automobiles have become the main means of transportation for daily travel. Major automobile manufacturers are increasingly emphasizing vehicle quality and passenger comfort. While ensuring vehicle safety performance, fuel consumption (and electricity consumption) is of particular importance. In the lightweight design process, effectively reducing the vehicle's footprint (to reduce fuel or electricity consumption) is a crucial task. With the advent of new energy vehicles, the battery pack, as a vital energy storage device, currently has a volume proportional to its energy storage capacity.

[0003] Therefore, given a fixed battery pack size, the current challenges are how to reduce vehicle width, lower fuel or electricity consumption, and improve the lightweighting of the vehicle body structure. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a simple and easy-to-install suspension mounting structure and its vehicle body layout structure for reducing vehicle width.

[0005] To achieve this objective, the present invention designs a suspension mounting structure that reduces vehicle width, including a body suspension, a body longitudinal beam, a side longitudinal beam, and a sill beam. The body suspension is vertically and detachably fixed to the lower part of the sill beam via a suspension mounting bracket and a bolt and nut structure. The suspension mounting bracket includes a lower suspension mounting bracket fixed to the lower part of the sill beam and fixedly connected to the body longitudinal beam on its inner side, and an upper suspension mounting bracket fixed to the upper part of the sill beam and fixedly connected to the side longitudinal beam on its inner side. The bolt and nut structure includes a suspension fixing nut fixed in the upper suspension mounting bracket and a suspension fixing bolt that passes vertically through the body suspension and is threadedly connected to the suspension fixing nut.

[0006] By mounting the vehicle body on the sill beams instead of the existing structure where the body is mounted on the floor beams, the distance between the left and right sill beams is reduced while keeping the left and right mounting intervals unchanged. This reduces the vehicle width, the space occupied by the vehicle, and lowers fuel or electricity consumption.

[0007] Furthermore, the inner side of the lower suspension bracket is fixedly connected to the longitudinal beam of the vehicle body along the length of the vehicle body.

[0008] Based on the structure of the vehicle body longitudinal beam, a lower mounting bracket is arranged to increase the overlap length between the lower mounting bracket and the vehicle body longitudinal beam, thus ensuring the structural strength of the lower mounting bracket.

[0009] Furthermore, the suspension mounting bracket includes a nut fixing bracket and a bolt guide bracket arranged vertically. The nut fixing bracket has the suspension fixing nut fixed inside, and the bolt guide bracket has a bolt guide sleeve arranged coaxially with the suspension fixing nut and located below the suspension fixing nut. The suspension fixing bolt passes through the vehicle body suspension, the sill beam and the bolt guide sleeve and is threadedly connected to the suspension fixing nut.

[0010] The suspension mounting nut is fixed by a nut fixing bracket, and the bolt guide sleeve is fixed by a bolt guide bracket. The bolt guide sleeve guides the suspension mounting bolt, ensuring accurate installation and connection between the suspension mounting bolt and the suspension mounting nut. The structure of the upper bracket for the suspension mounting is reasonable, easy to manufacture and install, and facilitates the installation and removal of the vehicle body suspension.

[0011] Furthermore, the bolt guide sleeve is fixed between the bottom upper surface of the bolt guide bracket and the bottom lower surface of the nut fixing bracket, and a sleeve support plate is fixed between the outer surface of the bolt guide sleeve and the bottom upper surface of the bolt guide bracket and the bottom lower surface of the nut fixing bracket.

[0012] The bolt guide sleeve is located between the bolt guide bracket and the nut fixing bracket. It is positioned by the upper and lower brackets, and the fixing structure strength of the bolt guide sleeve is strengthened by the sleeve support plate, which further improves the structural strength of the bolt guide sleeve.

[0013] Furthermore, both the nut fixing bracket and the bolt guide bracket are groove-type bracket structures with a base plate and side plates that are fixedly connected to the base plate around the perimeter, are integral with the base plate, and extend upwards. The front, rear, and outer side plates of the bolt guide bracket are respectively fixedly connected to the front, rear, and outer side plates of the nut fixing bracket.

[0014] Both the nut fixing bracket and the bolt guide bracket are box-type structures with high strength. The rationally designed structure of the nut fixing bracket and the bolt guide bracket further improves the strength of the connection and fixing structure of the two, meeting the strength requirements of the vehicle body mounting fixing structure.

[0015] Furthermore, the inner side of the bolt guide bracket and the inner side of the nut fixing bracket are fixedly connected by the longitudinal beam of the vehicle body. The top of the longitudinal beam of the vehicle body extends above the outer side plate of the nut fixing bracket, and the outer side plate of the nut fixing bracket extends upward and is fixedly connected to the top of the longitudinal beam of the vehicle body.

[0016] By integrating the bolt guide bracket and nut fixing bracket with the vehicle body structure, the connection strength of the bolt guide bracket and nut fixing bracket is improved by utilizing the vehicle body structure, thereby further ensuring the strength of the vehicle body mounting structure.

[0017] Furthermore, a reinforcing plate is fixedly connected between the nut fixing bracket and the longitudinal beam of the vehicle body.

[0018] The reinforcement plate structure further strengthens the connection between the nut fixing bracket and the longitudinal beam of the vehicle body, while ensuring that the structural dimensions of the nut fixing bracket are not too large, thereby further ensuring the structural strength of the nut fixing bracket.

[0019] Furthermore, the front, rear, and outer side plates of the nut fixing bracket are respectively fixedly connected to the longitudinal beams of the vehicle body with the reinforcing plates.

[0020] By rationally arranging the reinforcing plates, the connection strength between the nut fixing bracket and the longitudinal beam of the car body is improved, without affecting the respective arrangement structure of the longitudinal beam and the nut fixing bracket.

[0021] Furthermore, a vehicle body arrangement structure for a suspension mounting structure that reduces vehicle width includes a vehicle body floor and the aforementioned suspension mounting structure for reducing vehicle width, wherein multiple suspension mounting structures are arranged at intervals along the length of the vehicle body on both the left and right sides of the vehicle body floor.

[0022] By combining the suspension mounting structure with the vehicle floor to form a vehicle layout structure with a suspension mounting structure, the consistency of the vehicle floor's dimensions from front to back can be optimized, effectively reducing the vehicle width.

[0023] Furthermore, at least two of the aforementioned suspension mounting structures are arranged at intervals along the length of the vehicle body on both the left and right sides of the vehicle floor at the middle and rear.

[0024] The suspension mounting structure is strategically positioned in the middle and rear of the vehicle floor to minimize the width of the widest part of the vehicle body, achieving the optimal arrangement of the suspension mounting structure.

[0025] The beneficial effects of this invention are:

[0026] 1. By mounting the vehicle body on the sill beams instead of the existing structure where the vehicle body is mounted on the floor beams, the distance between the left and right sill beams is reduced while keeping the left and right mounting intervals unchanged. This reduces the vehicle width, the space occupied by the vehicle, and lowers fuel or electricity consumption.

[0027] 2. Based on the structure of the vehicle body longitudinal beam, a lower mounting bracket is arranged to increase the overlap length between the lower mounting bracket and the vehicle body longitudinal beam, thus ensuring the structural strength of the lower mounting bracket.

[0028] 3. The suspension fixing nut is fixed by the nut fixing bracket, and the bolt guide sleeve is fixed by the bolt guide bracket. The bolt guide sleeve guides the suspension fixing bolt, ensuring accurate installation connection between the suspension fixing bolt and the suspension fixing nut. The structure design of the upper bracket for the suspension installation is reasonable, easy to manufacture and install, and facilitates the installation and removal of the vehicle body suspension.

[0029] 4. The bolt guide sleeve is located between the bolt guide bracket and the nut fixing bracket. It is positioned by the upper and lower brackets, and the fixing structure strength of the bolt guide sleeve is strengthened by the sleeve support plate, which further improves the structural strength of the bolt guide sleeve.

[0030] 5. Both the nut fixing bracket and the bolt guide bracket are box-type structures with high strength. The rationally designed structure of the nut fixing bracket and the bolt guide bracket further improves the strength of the connection and fixing structure of the two, meeting the strength requirements of the vehicle body mounting fixing structure.

[0031] 6. By integrating the bolt guide bracket and nut fixing bracket with the vehicle body structure, the connection strength of the bolt guide bracket and nut fixing bracket is improved by utilizing the vehicle body structure, thereby further ensuring the installation structure strength of the vehicle body mount.

[0032] 7. The connection strength between the nut fixing bracket and the longitudinal beam of the vehicle body is further enhanced by the structure of the reinforcing plate, while ensuring that the structural dimensions of the nut fixing bracket are not too large, thereby further ensuring the structural strength of the nut fixing bracket.

[0033] 8. By rationally arranging the reinforcing plates, the connection strength between the nut fixing bracket and the longitudinal beam of the car body is improved, while not affecting the respective arrangement structure of the longitudinal beam of the car body and the nut fixing bracket.

[0034] 9. Combining the suspension mounting structure with the vehicle floor to form a vehicle layout structure with a suspension mounting structure can ensure the consistency of the vehicle floor's dimensions from front to back, effectively reducing the vehicle width.

[0035] 10. Focus on arranging the suspension mounting structure in the middle and rear of the vehicle floor to ensure that the width of the widest part of the vehicle body is minimized, achieving the optimal arrangement of the suspension mounting structure. Attached Figure Description

[0036] Figure 1 This is a bottom view of the vehicle body suspension arrangement on the left side of the vehicle floor in this invention;

[0037] Figure 2 for Figure 1 Sectional view of AA;

[0038] Figure 3 for Figure 1BB section view;

[0039] Figure 4 for Figure 1 CC section view;

[0040] Figure 5 for Figure 1 DD section view;

[0041] Among them, 1—body mount, 2—body longitudinal beam, 3—body side longitudinal beam, 4—sill beam, 5—lower mount mounting bracket, 6—upper mount mounting bracket (6.1—nut fixing bracket, 6.2—bolt guide bracket), 7—mount fixing nut, 8—mount fixing bolt, 9—bolt guide sleeve, 10—sleeve support plate, 11—reinforcing plate, 12—body floor. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0043] Definition of noun

[0044] Body mounts: Their main function is to connect the powertrain (engine and transmission, etc.) to the vehicle frame, providing support, vibration isolation, and limiting.

[0045] I. Main Components:

[0046] 1. Rubber bushings or hydraulic bushings: used to reduce vibration transmission and provide a certain degree of elasticity and damping.

[0047] 2. Metal bracket: It serves to connect and support.

[0048] II. Working Principle: Through the deformation of elastic elements such as rubber bushings, vibrations and impacts from the powertrain are absorbed and attenuated, preventing these vibrations from being directly transmitted to the vehicle body, thereby improving ride comfort. Simultaneously, the vehicle body mounts also limit the displacement of the powertrain during vehicle operation, ensuring its movement within a specified range and guaranteeing the stability and reliability of power transmission.

[0049] III. Types:

[0050] 1. Traditional rubber suspension: lower cost, but limited vibration isolation performance.

[0051] 2. Hydraulic mount: Provides better vibration isolation, especially performing well under low-frequency vibration.

[0052] IV. Importance:

[0053] 1. Comfort: Effectively reduces vibration and noise inside the vehicle, providing a comfortable riding environment for drivers and passengers.

[0054] 2. Reliability: Protects the powertrain and body structure, reduces component damage caused by vibration, and extends the service life of the vehicle.

[0055] 3. Handling: A good suspension system can improve the vehicle's handling stability and reduce powertrain sway during acceleration, braking and steering.

[0056] like Figure 1 As shown, in some embodiments, the vehicle body arrangement structure of the suspension mounting structure designed by the present invention to reduce vehicle width includes a vehicle body floor 12, and multiple vehicle body mounts 1 are arranged at intervals along the length direction of the vehicle body on both the left and right sides of the vehicle body floor 12 (the right side is not shown, but can be referred to). Figure 1 (The vehicle suspension arrangement structure on the left side of the vehicle floor 12). The vehicle suspensions 1 on the left and right sides of the vehicle floor 12 at the middle and rear are located on the outermost part of the vehicle body. The installation position of the vehicle suspension 1 at this location determines the width of the vehicle body. In the prior art, the vehicle suspension 1 at this location is installed on the floor crossbeam, and the width of the vehicle body is formed by the floor crossbeam plus the sill beam. In this invention, the vehicle suspension 1 at this location is directly installed on the sill beam 4, and the width of the vehicle body is directly determined by the sill beam 4. The width of the vehicle body is reduced without changing the distance between the vehicle suspensions on the left and right sides of the vehicle body. Two vehicle suspensions 1 are arranged at intervals along the length direction of the vehicle body on both the left and right sides of the vehicle floor 12 at the middle and rear.

[0057] Example 1

[0058] like Figure 2 As shown in Figure 3, the installation structure of the vehicle body mount 1 designed in this invention includes the vehicle body mount 1, the vehicle body longitudinal beam 2, the vehicle body side longitudinal beam 3, and the sill beam 4. The vehicle body mount 1 is vertically and detachably fixed to the bottom of the sill beam 4 through the mount mounting bracket and bolt and nut structure.

[0059] Example 2

[0060] Based on Embodiment 1, the suspension mounting bracket is further optimized: the suspension mounting bracket includes a lower suspension mounting bracket 5 fixed below the sill beam 4 and fixedly connected to the vehicle body longitudinal beam 2 on the inner side, and an upper suspension mounting bracket 6 fixed above the sill beam 4 and fixedly connected to the vehicle body longitudinal beam 3 on the inner side.

[0061] Example 3

[0062] Based on Embodiment 2, the bolt and nut structure is further optimized: the bolt and nut structure includes a suspension fixing nut 7 fixed in the upper bracket 6 of the suspension mounting and a suspension fixing bolt 8 that passes vertically through the vehicle body suspension 1 and the door sill beam 4 and is threadedly connected to the suspension fixing nut 7.

[0063] Example 4:

[0064] Based on Embodiment 3, the body connection structure of the lower suspension bracket 5 is optimized: the inner side of the lower suspension bracket 5 is fixedly connected to the longitudinal beam 2 of the body along the length of the body.

[0065] Example 5

[0066] Based on Embodiment 4, the design of the upper mounting bracket 6 is further optimized: the upper mounting bracket 6 includes a nut fixing bracket 6.1 and a bolt guide bracket 6.2 arranged vertically. The nut fixing bracket 6.1 has a mounting fixing nut 7 fixed inside, and the bolt guide bracket 6.2 has a bolt guide sleeve 9 arranged coaxially with the mounting fixing nut 7 and located below the mounting fixing nut 7. The mounting fixing bolt 8 passes through the vehicle body mounting bracket 1, the door sill beam 4 and the bolt guide sleeve 9 and is threaded to the mounting fixing nut 7.

[0067] Example 6

[0068] Based on Embodiment 5, the arrangement structure of the spiral guide sleeve 9 is further optimized: the bolt guide sleeve 9 is fixed between the bottom upper surface of the bolt guide bracket 6.2 and the bottom lower surface of the nut fixing bracket 6.1, and a sleeve support plate 10 is fixed between the outer surface of the bolt guide sleeve 9 and the bottom upper surface of the bolt guide bracket 6.2 and the bottom lower surface of the nut fixing bracket 6.1.

[0069] Example 7

[0070] Based on Embodiment 6, the structure of the nut fixing bracket 6.1 and the bolt guide bracket 6.2 is further optimized: both the nut fixing bracket 6.1 and the bolt guide bracket 6.2 are groove-type bracket structures with a base plate and side plates that are fixedly connected to the base plate around the perimeter, are integral with the base plate and extend upward. The front, rear and outer side plates of the bolt guide bracket 6.2 are fixedly connected to the front, rear and outer side plates of the nut fixing bracket 6.1, respectively.

[0071] Example 8

[0072] Based on Embodiment 7, the connection structure between the inner side of the bolt guide bracket 6.2 and the nut fixing bracket 6.1 and the longitudinal beam 3 of the vehicle body is further optimized: the inner side of the bolt guide bracket 6.2 and the inner side of the nut fixing bracket 6.1 are fixedly connected through the longitudinal beam 3 of the vehicle body, the top of the longitudinal beam 3 of the vehicle body extends above the outer side plate of the nut fixing bracket 6.1, and the outer side plate of the nut fixing bracket 6.1 extends upward and is fixedly connected to the top of the longitudinal beam 3 of the vehicle body.

[0073] Example 9

[0074] like Figure 4 As shown in Figure 5, the overall structure is basically the same as that of Embodiment 8, but the connection structure between the nut fixing bracket 6.1 and the longitudinal beam 3 of the vehicle body has been strengthened: a reinforcing plate 11 is fixedly connected between the nut fixing bracket 6.1 and the longitudinal beam 3 of the vehicle body.

[0075] Example 10

[0076] Based on Embodiment 9, the arrangement of the reinforcing plate 11 is further optimized: the front, rear and outer side plates of the nut fixing bracket 6.1 are fixedly connected to the longitudinal beam 3 of the vehicle body with the reinforcing plate 11.

[0077] The following focuses on Example 10:

[0078] like Figure 1 As shown, five body mounts 1 are provided on both the left and right sides of the vehicle floor 12 (the right side is not shown, refer to the left side). The body mounts 1 located in the middle and rear part of the vehicle floor 12 are arranged on the door sill beam 4.

[0079] like Figure 2 As shown in Figure 3, the mounting structure of the body suspension 1 located in the middle left side of the vehicle floor 12 includes a nut fixing bracket 6.1 fixed above the sill beam 4, a bolt guide bracket 6.2, and a suspension mounting lower bracket 5 fixed below the sill beam 4. The suspension mounting lower bracket 5 is welded and fixed to the vehicle longitudinal beam 2 along the length of the vehicle body. The upper part of the bolt guide bracket 6.2 and the lower part of the nut fixing bracket 6.1 are welded together to form a whole. The middle suspended part is supported by the bolt guide sleeve 9. The bolt guide sleeve 9 is connected to the nut fixing bracket 6.1 and the bolt guide bracket 6.2 in the front-rear direction by a sleeve support plate 10. The sleeve support plate 10 and the bolt guide sleeve 9 are connected by welding. The middle part of the nut fixing bracket 6.1 is fixed with a suspension fixing nut 7. The lower part of the bolt guide bracket 6.2 is welded to the inside of the vehicle side longitudinal beam 3 to form a whole. The upper part of the nut fixing bracket 6.1 is welded to the inside of the vehicle side longitudinal beam 3 to form a whole. The suspension fixing bolt 8 passes through the vehicle body suspension 1 and the bolt guide sleeve 9 is threaded into the suspension fixing nut 7. The vehicle body suspension 1 is fixed on the suspension mounting bracket 5.

[0080] like Figure 4 As shown in Figure 5, the mounting structure of the vehicle suspension 1 located at the middle and rear left side of the vehicle floor 12 includes a nut fixing bracket 6.1 fixed above the sill beam 4, a bolt guide bracket 6.2, and a suspension mounting lower bracket 5 fixed below the sill beam 4. The suspension mounting lower bracket 5 is welded and fixed to the vehicle longitudinal beam 2 along the length of the vehicle body. The upper part of the bolt guide bracket 6.2 and the lower part of the nut fixing bracket 6.1 are welded together to form a whole. The middle suspended part is supported by the bolt guide sleeve 9. The bolt guide sleeve 9 is connected to the nut fixing bracket 6.1 and the bolt guide bracket 6.2 in the front-rear direction by a sleeve support plate 10. The sleeve support plate 10 and the bolt guide sleeve 9 are connected by welding. The suspension fixing nut 7 is fixed in the middle of the nut fixing bracket 6.1. The lower part of the bolt guide bracket 6.2 is welded to the interior of the side longitudinal beam 3 of the vehicle body to form an integral unit. The upper part of the nut fixing bracket 6.1 is welded to the interior of the side longitudinal beam 3 of the vehicle body to form an integral unit. In addition, a reinforcing plate 11 is welded to the upper part of the nut fixing bracket 6.1. The upper part of the nut fixing bracket 6.1 is welded to the interior of the side longitudinal beam 3 of the vehicle body through the reinforcing plate 11. The suspension fixing bolt 8 passes through the body suspension 1 and is threaded into the suspension fixing nut 7 via the bolt guide sleeve 9. The body suspension 1 is fixed to the lower suspension mounting bracket 5.

[0081] In summary, this invention replaces the existing structure where the vehicle body mount 1 is mounted on the floor crossbeam by mounting the vehicle body mount 1 on the sill beam 4. While maintaining the same left and right mount spacing, it reduces the distance between the left and right sill beams, thereby reducing the vehicle width, the space occupied by the vehicle, and lowering fuel or electricity consumption. Based on the structure of the vehicle body longitudinal beam 2, a lower mount bracket 5 is arranged to increase the overlap length between the lower mount bracket 5 and the vehicle body longitudinal beam 2, ensuring the structural strength of the lower mount bracket 5. The mount fixing nut 7 is fixed by a nut fixing bracket 6.1, and the bolt guide sleeve 9 is fixed by a bolt guide bracket 6.2. The bolt guide sleeve 9 guides the mount fixing bolt 8, ensuring accurate installation connection between the mount fixing bolt 8 and the mount fixing nut 7. The upper mount bracket 6 has a reasonable structural design, is easy to manufacture and install, and facilitates the installation and removal of the vehicle body mount 1. The bolt guide sleeve 9 is located between the bolt guide bracket 6.2 and the nut fixing bracket 6.1, positioned by upper and lower brackets. The sleeve support plate 10 further strengthens the fixing structure of the bolt guide sleeve 9, enhancing its structural strength. Both the nut fixing bracket 6.1 and the bolt guide bracket 6.2 are box-type structures with high strength. The rationally designed structures of the nut fixing bracket 6.1 and the bolt guide bracket 6.2 further improve the connection and fixing structure strength, meeting the strength requirements of the vehicle body mount 1's fixing structure. Integrating the bolt guide bracket 6.2 and the nut fixing bracket 6.1 with the vehicle body structure enhances their connection strength, further ensuring the installation structure strength of the vehicle body mount 1. The reinforcing plate 11 further strengthens the connection between the nut fixing bracket 6.1 and the vehicle body longitudinal beam 3, while ensuring that the structural dimensions of the nut fixing bracket 6.1 are not excessively large, thus further guaranteeing its structural strength. By rationally arranging the reinforcing plate 11, the connection strength between the nut fixing bracket 6.1 and the longitudinal beam 3 of the vehicle body is improved, without affecting the individual arrangement of the longitudinal beam 3 and the nut fixing bracket 6.1. Combining the suspension mounting structure with the vehicle floor 12 forms a vehicle layout structure for the suspension mounting structure, ensuring consistent dimensional optimization of the vehicle floor 12 from front to rear, effectively reducing the vehicle width. The suspension mounting structure is strategically positioned in the middle and rear sections of the vehicle floor 12 to minimize the widest part of the vehicle, achieving the optimal arrangement effect of the suspension mounting structure.

[0082] It should be noted that the above description of the technical solutions is exemplary, and this specification may be embodied in different forms and should not be construed as limiting it to the technical solutions set forth herein. Rather, providing these descriptions will ensure that the disclosure of this invention is thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solutions of this invention are defined only by the scope of the claims. When using the terms "comprising," "having," and "including" as described in this specification, there may also be another part or other parts, and the terms used are generally singular but may also represent plural forms.

[0083] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention should be considered within the protection scope of the present invention.

Claims

1. A suspension mounting structure for reducing vehicle width, comprising a body suspension (1), a body longitudinal beam (2), a body side longitudinal beam (3), and a sill beam (4), characterized in that: The vehicle body mount (1) is vertically and detachably fixed to the underside of the sill beam (4) via a mount mounting bracket and bolt and nut structure; The suspension mounting bracket includes a lower suspension mounting bracket (5) fixed to the lower part of the sill beam (4) and fixedly connected to the vehicle body longitudinal beam (2) on the inner side, and an upper suspension mounting bracket (6) fixed to the upper part of the sill beam (4) and fixedly connected to the vehicle body longitudinal beam (3) on the inner side. The bolt and nut structure includes a suspension fixing nut (7) fixed in the upper bracket of the suspension mount (6) and a suspension fixing bolt (8) that passes vertically through the vehicle body mount (1) and the sill beam (4) and is threadedly connected to the suspension fixing nut (7); the upper bracket of the suspension mount (6) includes a nut fixing bracket (6.1) and a bolt guide bracket (6.2) arranged vertically; both the nut fixing bracket (6.1) and the bolt guide bracket (6.2) are grooves with a base plate and side plates that are fixedly connected to the base plate around the perimeter, are integral with the base plate and extend upward. The bolt guide bracket (6.2) has front, rear, and outer side plates that are fixedly connected to the front, rear, and outer side plates of the nut fixing bracket (6.1), respectively. The inner side of the bolt guide bracket (6.2) and the inner side of the nut fixing bracket (6.1) are fixedly connected by the vehicle side longitudinal beam (3). The top of the vehicle side longitudinal beam (3) extends upward toward the outer side plate of the nut fixing bracket (6.1), and the outer side plate of the nut fixing bracket (6.1) extends upward and is fixedly connected to the top of the vehicle side longitudinal beam (3).

2. The suspension mounting structure for reducing vehicle width as described in claim 1, characterized in that: The inner side of the suspension mounting bracket (5) is fixedly connected to the longitudinal beam (2) of the vehicle body along the length of the vehicle body.

3. The suspension mounting structure for reducing vehicle width as described in claim 1, characterized in that: The nut fixing bracket (6.1) has the suspension fixing nut (7) fixed inside, and the bolt guide bracket (6.2) has the bolt guide sleeve (9) arranged coaxially with the suspension fixing nut (7) and located below the suspension fixing nut (7) fixed inside. The suspension fixing bolt (8) passes through the vehicle body suspension (1), the door sill beam (4) and the bolt guide sleeve (9) and is threaded to the suspension fixing nut (7).

4. The suspension mounting structure for reducing vehicle width as described in claim 3, characterized in that: The bolt guide sleeve (9) is fixed between the bottom upper surface of the bolt guide bracket (6.2) and the bottom lower surface of the nut fixing bracket (6.1). A sleeve support plate (10) is fixed between the outer surface of the bolt guide sleeve (9) and the bottom upper surface of the bolt guide bracket (6.2) and the bottom lower surface of the nut fixing bracket (6.1).

5. The suspension mounting structure for reducing vehicle width as described in claim 1, characterized in that: A reinforcing plate (11) is fixedly connected between the nut fixing bracket (6.1) and the longitudinal beam (3) of the vehicle body.

6. The suspension mounting structure for reducing vehicle width as described in claim 5, characterized in that: The front, rear, and outer side plates of the nut fixing bracket (6.1) are respectively fixedly connected to the longitudinal beam (3) of the vehicle body with the reinforcing plate (11).

7. A vehicle body arrangement structure for a suspension mounting structure that reduces vehicle width, comprising a vehicle body floor (12), characterized in that: It also includes the suspension mounting structure for reducing vehicle width as described in any one of claims 1-6 above, wherein multiple suspension mounting structures are arranged at intervals along the length of the vehicle body on both the left and right sides of the vehicle body floor (12).

8. The vehicle body arrangement structure for reducing vehicle width according to claim 7, characterized in that: At least two suspension mounting structures are arranged at intervals along the length of the vehicle body on both the left and right sides of the vehicle floor (12) at the middle and rear.

Citation Information

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