Lower vehicle body module and vehicle
By abolishing the subframe in the vehicle lower body module and directly connecting the longitudinal and transverse tie rods to the vehicle body, the problems of weight increase, fuel economy reduction and space discontinuity caused by the subframe in the existing vehicle structure are solved, and the effects of vehicle weight reduction, fuel economy improvement and space optimization are achieved.
Patent Information
- Application Number
- CN202421309341.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing vehicle structure has a subframe in the rear suspension design, resulting in increased vehicle weight, reduced fuel economy, high manufacturing costs, and a step structure that affects cargo unloading and interior space continuity.
A lower body module is designed, including a rear floor assembly, a longitudinal pull rod mounting reinforcement plate and a transverse pull rod mounting reinforcement plate. By directly connecting the longitudinal pull rod and the transverse pull rod to the body, the subframe is cancelled, the vehicle space is optimized and the rear cargo bin is reduced.
It realizes effective reduction of vehicle weight, improves fuel economy and market competitiveness, and reduces manufacturing costs and ground clearance of rear body modules, improves cargo unloading convenience and utilization of interior space.
Smart Images
Figure CN222611260U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of vehicle structure design and manufacturing, and in particular, relates to a lower body module and a vehicle. Background Art
[0002] In the prior art, there are indeed some inherent characteristics and problems in the vehicle structure, such as in the construction of the floor panel and the rear suspension.
[0003] In the design of the rear suspension, the prior art usually adopts a structure with a subframe. The subframe is usually installed on the vehicle body by bolts or other connection methods to support and fix the suspension system. This design can indeed improve the rigidity and stability of the suspension, but it also brings some problems. First, the subframe increases the weight of the vehicle, affecting fuel economy and handling performance. Secondly, the manufacture and installation of the subframe require additional costs and time, which increases the manufacturing cost of the vehicle. Moreover, in most vehicle designs with a subframe, due to the certain installation space required for the subframe in the Z direction, there is often a step between the front floor panel and the rear floor panel (such as Figure 1 ). This design may be due to the needs of the vehicle structure or the limitations of the production process. In some models, the height difference between the front floor panel and the rear floor panel even reaches 170mm. The existence of the step affects the height of the rear floor, making the height of the rear floor higher, so that the cargo unloading is very stable; on the other hand, it makes it impossible to achieve continuity in the interior space.
[0004] The vehicle structure in the prior art still has some limitations in the design of the lower body module, based on which the present application is proposed. Utility Model Content
[0005] In order to solve the above problems, it is necessary to develop a more flexible lower body module structure design to optimize vehicle space and lower the height of the rear cargo compartment from the ground to better achieve cargo unloading.
[0006] According to one aspect of the present application, a lower vehicle body module is provided, comprising a rear floor assembly, a longitudinal tie rod mounting reinforcement plate and a transverse tie rod mounting reinforcement plate; the rear floor assembly comprises a longitudinal beam assembly and a transverse beam assembly, wherein the transverse beam assembly is connected between the longitudinal beam assemblies, and the longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam extending along the X direction; wherein the longitudinal tie rod mounting reinforcement plate is connected to the first longitudinal beam for connecting the longitudinal tie rod; and the transverse tie rod mounting reinforcement plate is connected to the second longitudinal beam for connecting the transverse tie rod.
[0007] In a further solution of the embodiment of the present application, the rear floor assembly also includes a rear enclosure assembly and a rear floor panel; the rear enclosure assembly is connected to an end of the second longitudinal beam facing away from the first longitudinal beam; and the rear floor panel is connected to the first longitudinal beam.
[0008] In a further solution of the embodiment of the present application, the crossbeam assembly includes a first crossbeam and a second crossbeam; the two ends of the first crossbeam are respectively connected to the first longitudinal beam; the two ends of the second crossbeam are respectively connected to the connection between the first longitudinal beam and the second longitudinal beam.
[0009] In a further scheme of the embodiment of the present application, the rear floor assembly also includes a rear suspension longitudinal tie rod mounting bracket; the rear suspension longitudinal tie rod mounting bracket includes a first connecting rod and a plurality of first threaded holes arranged around the first connecting rod, and the rear suspension longitudinal tie rod mounting bracket is screwed to the longitudinal tie rod mounting reinforcement plate through the first threaded holes; one end of the longitudinal tie rod is rotatably connected to the first connecting rod, and the other end is connected to the steering knuckle.
[0010] In a further solution of the embodiment of the present application, the tie rod installation reinforcement plate includes a tie rod reinforcement upper plate and a tie rod reinforcement lower plate, and the tie rod reinforcement upper plate forms a convex rib relative to the tie rod reinforcement lower plate.
[0011] In a further solution of the embodiment of the present application, the tie rod mounting reinforcement plate includes two rear suspension tie rod mounting brackets, and the rear suspension tie rod mounting bracket includes a second connecting rod; one end of the tie rod is rotatably connected to the second connecting rod, and the other end is connected to the steering knuckle.
[0012] In a further solution of the embodiment of the present application, along the direction from the first longitudinal beam to the second longitudinal beam, the distance between the first longitudinal beams gradually decreases, and the distance between the second longitudinal beams is set to be constant.
[0013] In a further solution of the embodiment of the present application, the longitudinal tie rod mounting reinforcement plate is also connected to the sill beam assembly.
[0014] In a further solution of the embodiment of the present application, the longitudinal tie rod mounting reinforcement plate is connected to the connection between the first longitudinal beam and the second longitudinal beam and is away from the outer side of the cross beam assembly.
[0015] In a second aspect of the present application, a vehicle is also provided, comprising the above lower body module.
[0016] Based on a general inventive concept of an embodiment of the utility model, the longitudinal beam assembly and the cross beam assembly not only ensure the strength and stability of the rear floor module. The reinforcing plate is connected to the first longitudinal beam through the longitudinal tie rod installation, which is used to connect the longitudinal tie rod; in addition, the reinforcing plate is connected to the second longitudinal beam through the cross tie rod installation, which is used to connect the cross tie rod. By simplifying the structure of the rear suspension, the force distribution of the entire lower body module is made more reasonable, and the handling and stability of the vehicle are improved. More importantly, by directly connecting the longitudinal tie rod and the cross tie rod to the vehicle body (i.e., the rear floor assembly), the subframe of the original lower body module is eliminated, thereby effectively reducing the weight of the vehicle. Fuel consumption is reduced, fuel economy is improved, and the manufacturing cost of the vehicle is reduced, thereby improving its market competitiveness. In addition, the elimination of the subframe further reduces the ground clearance of the lower body module, making loading and unloading of goods more convenient, and also improving the utilization rate of the space inside the vehicle.
[0017] Other features and advantages of the embodiments of the present application will be described in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 It is a structural schematic diagram of a vehicle body module in the prior art exemplified by the present utility model;
[0020] Figure 2 A first top view of a lower body module provided by an embodiment of the utility model;
[0021] Figure 3 A second top view of the lower body module provided by the embodiment of the utility model;
[0022] Figure 4 A top view of the lower vehicle body module provided by an embodiment of the utility model in a state where the wheels are installed;
[0023] Figure 5 It is a partial structural schematic diagram of a rear suspension longitudinal tie rod mounting bracket in a lower body module provided by the utility model;
[0024] Figure 6 It is a schematic diagram of the partial structure of the tie rod installation reinforcement plate in the lower body module provided by an embodiment of the utility model.
[0025] The reference numerals are as follows:
[0026] 100, lower body module;
[0027] 10. Rear floor assembly; 11. Longitudinal beam assembly; 12. Cross beam assembly;
[0028] 111, first longitudinal beam; 112, second longitudinal beam; 121, first transverse beam; 122, second transverse beam;
[0029] 20. Install reinforcement plates on the longitudinal tie rods;
[0030] 21. rear suspension longitudinal tie rod mounting bracket; 211. first connecting rod; 212. first threaded hole;
[0031] 22. Rear suspension tie rod mounting bracket; 221. Second connecting rod;
[0032] 30. Install the reinforcement plate for the transverse tie rod; 31. Reinforce the upper plate for the transverse tie rod; 32. Reinforce the lower plate for the transverse tie rod. DETAILED DESCRIPTION
[0033] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear to indicate the orientation or position relationship, unless otherwise specified, they are understood to be based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.
[0034] In addition, if there is a feature defined as "first" or "second", it is only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly include at least one of the defined features. If there is a description of "plurality", the general meaning is to include at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0035] In this application, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and so on should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0036] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0037] like Figures 2 to 4 A first aspect of an embodiment of the utility model provides a lower vehicle body module 100 , which includes a rear floor assembly 10 , a longitudinal tie rod mounting reinforcement plate 20 , and a transverse tie rod mounting reinforcement plate 30 .
[0038] It can be understood that the rear floor assembly 10, as the entire lower body module 100, bears the weight of the vehicle body and transmits various forces; the rear floor assembly 10 includes a longitudinal beam assembly 11 and a cross beam assembly 12, and the longitudinal beam assembly 11 and the cross beam assembly 12 form a supporting structure of the vehicle body. The longitudinal beam assembly 11 includes a first longitudinal beam 111 and a second longitudinal beam 112 extending in the rear direction of the vehicle (i.e., -X direction), and the first longitudinal beam 111 and the second longitudinal beam 112 provide strong longitudinal support for the vehicle body. The cross beam assembly 12 is connected between the longitudinal beams to increase the lateral stability of the vehicle body.
[0039] It should be noted that this application uses the vehicle body coordinate system as the position description, with the X-axis referring to the front and rear direction of the vehicle (forward is +X), the Y-axis pointing to the left and right sides of the vehicle (right side +Y axis), and the Z-axis being the up and down direction of the vehicle (top is +Z).
[0040] The longitudinal tie rod mounting reinforcement plate 20 is configured to be connected to the first longitudinal beam 111, providing a stable mounting point for the longitudinal tie rod. As an important part of the suspension system, the longitudinal tie rod is responsible for transmitting and dispersing the impact force from the road surface to ensure the smooth driving of the vehicle. The addition of the longitudinal tie rod mounting reinforcement plate 20 enhances the firmness of the longitudinal tie rod connection and improves the reliability and durability of the suspension system. The transverse tie rod mounting reinforcement plate 30 is a key component for connecting the transverse tie rods, which is installed on the second longitudinal beam 112 and provides a stable mounting foundation for the transverse tie rods. The transverse tie rod plays a role in limiting the lateral displacement of the vehicle body in the suspension system, which helps to improve the handling stability of the vehicle. The presence of the transverse tie rod mounting reinforcement plate 30 enhances the strength and stability of the transverse tie rod connection and ensures the safety performance of the vehicle under various driving conditions.
[0041] In summary, based on a general inventive concept of an embodiment of the utility model, the longitudinal beam assembly 11 and the cross beam assembly 12 not only ensure the strength and stability of the rear floor module. The reinforcing plate 20 is connected to the first longitudinal beam 111 through the longitudinal tie rod installation, and is used to connect the longitudinal tie rod; in addition, the reinforcing plate 30 is connected to the second longitudinal beam 112 through the cross tie rod installation, and is used to connect the cross tie rod. By simplifying the structure of the rear suspension, the force distribution of the entire lower body module 100 is made more reasonable, and the handling and stability of the vehicle are improved. More importantly, by directly connecting the longitudinal tie rod and the cross tie rod to the vehicle body (i.e., the rear floor assembly 10), the subframe of the original lower body module is eliminated, and the weight of the vehicle is effectively reduced. Fuel consumption is reduced, fuel economy is improved, and the manufacturing cost of the vehicle is reduced, which improves its market competitiveness. In addition, the elimination of the subframe further reduces the ground clearance of the lower body module, making loading and unloading of goods more convenient, and also improving the utilization rate of the space inside the vehicle.
[0042] In a further embodiment of the present invention, the rear floor assembly 10 also includes a rear enclosure assembly 13 and a rear floor panel 14 ; the rear enclosure assembly 13 is connected to one end of the second longitudinal beam 112 away from the first longitudinal beam 111 ; the rear floor panel 14 is connected to the first longitudinal beam 111 .
[0043] It can be understood that the rear panel assembly 13 is connected to the end of the second longitudinal beam 112 away from the first longitudinal beam 111. The rear structural strength of the rear floor assembly 10 can be enhanced. The rear panel assembly 13 may include multiple panels and reinforcing ribs to form a solid frame to effectively resist the impact force from the rear and ensure the safety of passengers. The rear floor panel 14 is connected to the first longitudinal beam 111, covering and protecting the bottom area of the rear floor assembly 10. It may be made of high-strength materials, which can withstand the impact and vibration from the road surface and maintain the stability of the vehicle body. By comprehensively using components such as the longitudinal beam assembly 11, the cross beam assembly 12, the rear panel assembly 13 and the rear floor panel 14, the rear floor assembly 10 forms a structural system that is both strong and safe. This design not only ensures the stability and safety of the vehicle during driving, but also provides a comfortable and quiet riding environment for passengers.
[0044] In an optional manner, the cross beam assembly 12 includes a first cross beam 121 and a second cross beam 122; the two ends of the first cross beam 121 are respectively connected to the first longitudinal beam 111; the two ends of the second cross beam 122 are respectively connected to the connection between the first longitudinal beam 111 and the second longitudinal beam 112. The two ends of the first cross beam 121 are respectively connected to the first longitudinal beam 111. This connection method ensures a stable connection between the first cross beam 121 and the first longitudinal beam 111, thereby effectively enhancing the rigidity of the vehicle body in the longitudinal direction. The first cross beam 121 and the second cross beam 122 may be made of high-strength materials to withstand the impact and vibration from the road surface and maintain the stability of the vehicle body. To ensure that it can withstand various complex stress conditions. The two ends of the second cross beam 122 are respectively connected to the connection between the first longitudinal beam 111 and the second longitudinal beam 112 to strengthen the connection between the first longitudinal beam 111 and the second longitudinal beam 112, further enhancing the rigidity and stability of the vehicle body. Through the arrangement of the first cross beam 121 and the second cross beam 122 , the cross beam assembly 12 can effectively connect the longitudinal beam and the cross beam of the vehicle body into a whole, forming a strong skeleton structure.
[0045] like Figure 5 The lower body module 100 further includes a rear suspension longitudinal tie rod mounting bracket 21; the rear suspension longitudinal tie rod mounting bracket 21 includes a first connecting rod 211 and a plurality of first threaded holes 212 are arranged around the first connecting rod 211, and the rear suspension longitudinal tie rod mounting bracket 21 is screwed to the longitudinal tie rod mounting reinforcement plate 20 through the first threaded holes 212; so that the mounting bracket can be firmly mounted on the longitudinal tie rod mounting reinforcement plate 20. Through the first threaded holes 212, the rear suspension longitudinal tie rod mounting bracket 21 can be screwed to the longitudinal tie rod mounting reinforcement plate 20, ensuring that the connection between the two is both firm and reliable.
[0046] Furthermore, one end of the longitudinal tie rod is rotatably connected to the first connecting rod 211, and the other end is connected to the steering knuckle. That is, the longitudinal tie rod is directly connected to the first connecting rod 211 of the rear suspension longitudinal tie rod mounting bracket 21. This structural design does not require a subframe as an intermediate receiving member. The reduction of intermediate links makes the entire structure more compact, thereby saving longitudinal space and making the ground clearance of the lower body module 100 lower. At the same time, this design also helps to optimize the weight distribution of the vehicle. Due to the reduction of intermediate components such as the subframe, the overall weight of the vehicle is reduced, thereby improving the energy efficiency performance of the vehicle. Lighter body weight can also reduce braking distance and improve the safety performance of the vehicle.
[0047] The tie rod installation reinforcement plate 30 includes a tie rod reinforcement upper plate 31 and a tie rod reinforcement lower plate 32. The tie rod reinforcement upper plate 31 forms a convex rib relative to the tie rod reinforcement lower plate 32. The presence of the convex rib makes the tie rod reinforcement upper plate 31 have higher rigidity in a specific area, which can more effectively resist the force from the tie rod, reduce deformation and vibration. At the same time, it also optimizes the force transmission path. When the tie rod is subjected to force, the convex rib can guide the force to be more directly and effectively dispersed to the entire reinforcement plate to avoid stress concentration.
[0048] like Figure 6 The tie rod mounting reinforcement plate 30 includes two rear suspension tie rod mounting brackets 22, and the rear suspension tie rod mounting bracket 22 includes a second connecting rod 221; one end of the tie rod is rotatably connected to the second connecting rod 221, and the other end is connected to the steering knuckle.
[0049] The tie rod mounting reinforcement plate 30 provides a solid mounting base for the tie rod and strengthens the structural strength of this area; the rear suspension tie rod mounting bracket 22 is a component specially designed to mount the tie rod. It allows a stable and reliable connection between the tie rod and the vehicle body. This design ensures that the tie rod can work effectively during the driving of the vehicle and provide the necessary stability and controllability. The second connecting rod 221 is a part of the rear suspension tie rod mounting bracket 22, which is directly connected to one end of the tie rod. The tie rod can rotate relative to the connecting rod within a certain range to adapt to various movements and vibrations when the vehicle is driving.
[0050] In the embodiment of the utility model, along the direction from the first longitudinal beam 111 to the second longitudinal beam 112, the distance between the first longitudinal beams 111 gradually decreases, and the distance between the second longitudinal beams 112 is set constant. That is, the first longitudinal beam 111 starts from a certain end point, and the distance between the two first longitudinal beams 111 is gradually reduced. This design helps to provide sufficient installation space for the steering knuckle, ensuring that the steering knuckle can be smoothly installed and coordinated with other components of the suspension system. At the same time, as the distance gradually decreases, the structure of the longitudinal beam assembly will become more compact, which may help to improve the handling and responsiveness of the vehicle. Then the two second longitudinal beams 112 remain parallel and the distance remains unchanged. Combining the above two characteristics, the entire longitudinal beam assembly presents a "Y-shaped" structure in the X direction. This design not only provides sufficient space to avoid the installation of the steering knuckle, but also improves the overall force-bearing rigidity of the longitudinal beam assembly through a reasonable structural layout. A longitudinal beam assembly with better rigidity can better withstand various forces and vibrations generated during the driving of the vehicle, thereby improving the safety and stability of the vehicle.
[0051] In the embodiment of the utility model, the longitudinal tie rod installation reinforcement plate 20 is also connected to the door sill beam assembly. The longitudinal tie rod installation reinforcement plate 20 itself is provided to the longitudinal tie rod installation point, and is also welded to the longitudinal beam assembly 11 and the door beam assembly, which improves the dynamic stiffness of the longitudinal tie rod installation point of the rear suspension longitudinal tie rod installation bracket 21 on the one hand, and strengthens the connection stiffness of the overlap of the front floor assembly and the rear floor assembly on the other hand, and improves the bending and torsion performance of the whole vehicle.
[0052] Specifically, the longitudinal tie rod installation reinforcement plate 20 is connected to the connection between the first longitudinal beam 111 and the second longitudinal beam 112 and away from the outer side of the cross beam assembly 12. Since the connection between the first longitudinal beam 111 and the second longitudinal beam 112 is subjected to the transmission of various forces during the vehicle running, by installing the longitudinal tie rod reinforcement plate 20 at this position, the strength of the connection area can be significantly improved, thereby enhancing the stability of the entire vehicle body structure.
[0053] Those skilled in the art should understand that if all or part of the sub-modules of the lower body module 100 involved in the various products provided in the embodiments of the present invention are combined or replaced by fusion, simple change, mutual conversion, etc., such as the components are placed and moved; or the products they constitute are set as one piece; or are designed to be detachable; all the combined components can form equipment / devices / systems with specific functions, using such equipment / devices / systems to replace the corresponding components of the present invention also falls within the scope of protection of the present invention.
[0054] Another aspect of the present application provides a vehicle, which includes the above-mentioned lower body module 100; obviously, the vehicle has all the advantages brought by the above-mentioned lower body module 100. For example, the design optimizes the spatial layout of the vehicle, reduces the ground clearance, improves the spatial continuity of the vehicle, etc. Of course, the vehicle also has other advantages brought by the above-mentioned lower body module 100, which will not be repeated here.
[0055] The various technical features described above can be combined arbitrarily. Although all possible combinations of these technical features are not described, any combination of these technical features should be considered to be covered by this specification as long as there is no contradiction in such combination.
[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still adjust the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these adjustments or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A lower body module, characterized in that: It comprises a rear floor assembly (10), a longitudinal tie rod mounting reinforcement plate (20) and a transverse tie rod mounting reinforcement plate (30); The rear floor assembly (10) comprises a longitudinal beam assembly (11) and a cross beam assembly (12), wherein the cross beam assembly (12) is connected between the longitudinal beam assemblies (11), and the longitudinal beam assembly (11) comprises a first longitudinal beam (111) and a second longitudinal beam (112) extending along the X direction; The longitudinal tie rod mounting reinforcement plate (20) is connected to the first longitudinal beam (111) for connecting the longitudinal tie rod; and the transverse tie rod mounting reinforcement plate (30) is connected to the second longitudinal beam (112) for connecting the transverse tie rod.
2. The lower body module according to claim 1, characterized in that: The rear floor assembly (10) further comprises a rear panel assembly (13) and a rear floor panel (14); The rear panel assembly (13) is connected to an end of the second longitudinal beam (112) facing away from the first longitudinal beam (111); The rear floor panel (14) is connected to the first longitudinal beam (111).
3. The lower body module according to claim 1, characterized in that: The crossbeam assembly (12) comprises a first crossbeam (121) and a second crossbeam (122); The two ends of the first cross beam (121) are respectively connected to the first longitudinal beam (111); the two ends of the second cross beam (122) are respectively connected to the connection between the first longitudinal beam (111) and the second longitudinal beam (112).
4. The lower body module according to claim 1, characterized in that: The lower body module also includes a rear suspension longitudinal tie rod mounting bracket (21); The rear suspension longitudinal tie rod mounting bracket (21) comprises a first connecting rod (211) and a plurality of first threaded holes (212) arranged around the first connecting rod (211), and the rear suspension longitudinal tie rod mounting bracket (21) is screwed onto the longitudinal tie rod mounting reinforcement plate (20) through the first threaded holes (212); One end of the longitudinal tie rod is rotatably connected to the first connecting rod (211), and the other end is connected to the steering knuckle.
5. The lower vehicle body module according to claim 4, characterized in that: The tie rod installation reinforcement plate (30) comprises a tie rod reinforcement upper plate (31) and a tie rod reinforcement lower plate (32), and the tie rod reinforcement upper plate (31) forms a convex rib relative to the tie rod reinforcement lower plate (32).
6. The lower vehicle body module according to claim 5, characterized in that: The tie rod mounting reinforcement plate (30) includes two rear suspension tie rod mounting brackets (22), and the rear suspension tie rod mounting bracket (22) includes a second connecting rod (221); one end of the tie rod is rotatably connected to the second connecting rod (221), and the other end is connected to the steering knuckle.
7. The lower vehicle body module according to claim 1, characterized in that: Along the direction from the first longitudinal beam (111) to the second longitudinal beam (112), the distance between the first longitudinal beams (111) gradually decreases, and the distance between the second longitudinal beams (112) is set to be constant.
8. The lower vehicle body module according to claim 1, characterized in that: The longitudinal tie rod mounting reinforcement plate (20) is also connected to the door sill beam assembly.
9. The lower vehicle body module according to claim 3, characterized in that: The longitudinal tie rod mounting reinforcement plate (20) is connected to the connection between the first longitudinal beam (111) and the second longitudinal beam (112) and is away from the outer side of the cross beam assembly (12).
10. A vehicle, characterized in that: It comprises a lower vehicle body module according to any one of claims 1 to 9.