A modular vehicle front structure and vehicle

Abstract

This invention discloses a modular vehicle front structure, including a front bulkhead module, two side bulkhead modules, and a partition frame, as well as a bottom frame. The front bulkhead modules are located at the front of the bottom frame, the side bulkhead modules are located on both sides of the bottom frame, and the partition frame is located at the rear of the bottom frame. The bottom frame includes a first platform and a second platform arranged along the vehicle's driving direction, which are connected and fixed together by a connecting frame. A first mounting beam for mounting a drive module is located below the first platform, and a second mounting beam is located below the second platform. The first mounting beam is connected and fixed to the first platform, and the second mounting beam is connected and fixed to the second platform by several connecting beams. This invention, through its structure, connects with the cab's front bulkhead module and side bulkhead modules to form a whole, resulting in a stable overall structure and a high load-bearing capacity of the bottom frame.

Description

Technical Field

[0001] This invention relates to a modular vehicle front structure and vehicle, belonging to the field of vehicle structure technology, and particularly to a modular front section for a pure electric commercial vehicle. Background Technology

[0002] Commercial trucks consist of a front section and a rear section. The front section includes the front chassis, cab module, front drive module, front suspension module, and front running gear module. For trucks within the commercial vehicle category, the cab is highly modular, but due to the significant load variations faced by trucks, the front chassis needs to be adapted to changes in load and operating conditions.

[0003] Chinese invention patent CN111845946A discloses a low-platform new energy light truck, which includes a frame. The frame includes two longitudinal beams and a crossbeam located in front of the longitudinal beams. The longitudinal beams include a front section, a middle section, and a rear section. The height of the middle section is about 350-450mm lower than the height of the front section, and the middle and rear sections are at the same height. The front and middle sections of the longitudinal beams are fixed by steel-aluminum connecting plates, and the middle and rear sections are fixed by a die-cast bridging section. The die-cast bridging section has an arched structure to avoid the rear axle. The rear axle is a U-shaped driven single-tire rear axle, with the middle section about 200mm lower than the sides, and the middle section is located below the arched structure. However, this design features a split design for the body and chassis, failing to integrate the cab floor and the front chassis into a complete module. The overall structure is complex, fragmented, and has low integration. Furthermore, the existing cab floor cannot directly mount the front axle module or suspension. Summary of the Invention

[0004] The present invention aims to address the above-mentioned technical problems by providing a modular vehicle front structure and vehicle that is simple and stable in structure, and integrates the cab floor and the front chassis into a complete module.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A modular vehicle front structure includes a front bulkhead module, two side bulkhead modules, and a partition frame, as well as a bottom frame. The front bulkhead modules are disposed at the front of the bottom frame, the side bulkhead modules are disposed on both sides of the bottom frame, and the partition frame is disposed at the rear of the bottom frame. The bottom frame includes a first platform and a second platform disposed along the vehicle's driving direction, and the first platform and the second platform are connected and fixed together by a connecting frame. A first mounting beam for mounting a drive module is disposed below the first platform, and a second mounting beam is disposed below the second platform. The first mounting beam is connected and fixed to the first platform, and the second mounting beam is connected and fixed to the second platform by several connecting beams.

[0007] Therefore, by setting the first and second mounting beams below the first and second platforms, the bottom frame becomes a double-layer structure. The upper layer can serve as the floor of the cab, and the lower layer of the bottom frame can also be used to install the drive module and suspension, solving the technical problem that the original cab floor could not install the drive module and suspension. The bottom frame of this solution combines the cab floor and the front chassis into a complete module. At the same time, the upper structure of the bottom frame can replace the cab floor frame and is connected to the cab front bulkhead module and side bulkhead module to form an integral whole. The overall structure is stable and the bottom frame has a strong load-bearing capacity.

[0008] In this scheme, each feature is defined as the front side facing the direction the vehicle is traveling forward, and the side facing the direction the vehicle is traveling backward.

[0009] According to embodiments of the present invention, the present invention can be further optimized, and the optimized technical solution is as follows:

[0010] To enhance the structural stability between the first and second platforms while increasing the installation space for the drive module and suspension, in one specific embodiment, the bottom frame is a truss structure; the first platform is positioned higher than the second platform.

[0011] Specifically, the connecting frame is inclined from the first platform to the second platform along the vehicle's travel direction.

[0012] To facilitate the installation of the bulkhead module and the bottom step of the cab, in one specific embodiment, the second platform includes a central frame for connection with the front bulkhead module, and side frames are provided on both sides of the central frame; the front end of the central frame protrudes beyond the front end of the side frames.

[0013] To facilitate connection to the rear cargo box, in one specific embodiment, a third mounting beam extending downwards is provided at the rear end of the first platform; a connecting structure for connecting to the cargo box is installed on the back side of the third mounting beam; the connecting structure includes a connecting frame fixedly connected to the third mounting beam.

[0014] To facilitate the installation of the suspension structure, in one specific embodiment, the first mounting beam is provided with a mounting base for installing the drive module.

[0015] In one specific embodiment, a suspension module is provided at the lower part of the bottom frame. The suspension module includes a leaf spring, one end of which is hinged to the second mounting beam, and the other end of which is hinged to the third mounting beam. The suspension module also includes a shock absorber, the lower end of which is hinged to the leaf spring, and the upper end of which is hinged to the first mounting beam.

[0016] To enhance the structural stability of the bottom frame, in one specific embodiment, a first reinforcing beam extending to the second mounting beam is provided below the connecting frame, with the front section of the first mounting beam extending onto the first reinforcing beam; a second reinforcing beam and a third reinforcing beam are respectively provided between the third mounting beam and the first mounting beam, and between the first mounting beam and the second mounting beam. The first reinforcing beam, the second reinforcing beam, and the first mounting beam form a stable triangular structure, enhancing the structural stability between the first platform and the second platform.

[0017] In one specific embodiment, two sets of first mounting beams, second mounting beams, and third mounting beams are provided along the width direction of the cab.

[0018] Based on the same inventive concept, the present invention also provides a vehicle including the above-described modular vehicle front structure.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1) The modular front bottom frame of the pure electric commercial vehicle of the present invention combines the cab floor and the front chassis into a complete module. At the same time, a truss structure is used to replace the cab floor frame, and the cab front panel module and side panel module are connected to each other through this structure to form an integral whole. The overall structure is stable and the bottom frame has a strong load-bearing capacity.

[0021] 2) The modular front section of the pure electric commercial vehicle of the present invention has a large load-bearing expandability and can be adapted to various rear sections for connection with various production methods, thereby ensuring that the rear section of the vehicle can achieve a large load change, thus allowing the total load-bearing capacity of the vehicle to change significantly.

[0022] 3) The modular front section of the pure electric commercial vehicle of the present invention has steering function, driving function, front section load-bearing and driving function. At the same time, the application of steer-by-wire, brake-by-wire and distributed drive technology realizes the decoupling of the functions of the front section and the rear section of the vehicle. As a result, the front section can be combined and matched with a wider range of vehicle rear sections, thereby realizing the rapid diversification of vehicle expansion and further increasing the scale and application value of the modular front section.

[0023] 4) The bottom frame of the present invention has a double-layer structure. The upper layer can serve as the floor of the cab, and the bottom frame layer can also be used to install the drive module and suspension, which solves the technical problem that the original cab floor cannot install the drive module and suspension. Attached Figure Description

[0024] Figure 1 This is an isometric structural diagram of the front section of the vehicle according to the present invention;

[0025] Figure 2 This is a side view of the bottom skeleton of the present invention;

[0026] Figure 3 This is a side view of the bottom frame of the present invention after the suspension module is installed;

[0027] Figure 4 This is a schematic diagram of the lower side structure of the bottom skeleton of the present invention;

[0028] Figure 5 This is a three-dimensional structural diagram of the rear side of the bottom skeleton of the present invention;

[0029] Figure 6 This is a top view of the bottom skeleton of the present invention.

[0030] In the figure

[0031] 1-Front bulkhead module; 2-Side bulkhead module; 3-Bottom frame; 31-First platform; 32-Second platform; 321-Middle frame; 322-Side frame; 33-Connecting frame; 34-First mounting beam; 35-Second mounting beam; 36-Third mounting beam; 37-First reinforcing beam; 38-Second reinforcing beam; 39-Third reinforcing beam; 4-Partition frame; 5-Drive module; 6-Connecting beam; 7-Connecting structure; 71-Connecting frame; 8-Suspension module; 81-Leaf spring; 82-Shock absorber; 9-Mounting seat. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" used below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0033] like Figures 1-6 As shown, the modular vehicle front section structure of this embodiment includes a front bulkhead module 1, side bulkhead modules 2, and a bottom frame 3, which is a truss structure. The front bulkhead module 1 is located at the front of the bottom frame 3, the side bulkhead modules 2 are located on both sides of the bottom frame 3, and a partition frame 4 is located at the rear of the bottom frame 3. The front bulkhead module 1, side bulkhead modules 2, bottom frame 3, and partition frame 4 together form a cab structure, constituting the modular vehicle front section of this embodiment. In this embodiment, as... Figure 2 As shown, the side facing the front bulkhead module 1 is the front side of the vehicle, and the direction of the bottom frame 3 towards the front side of the vehicle is the front side of the bottom frame 3.

[0034] In this embodiment, the bottom frame 3 is a double-layer structure. The upper bottom frame 3 includes a first platform 31 and a second platform 32 arranged along the vehicle driving direction. A connecting frame 33 is arranged between the first platform 31 and the second platform 32. The first platform 31 is set higher than the second platform 32, and the second platform 32 is set in front of the first platform 31. The connecting frame 33 is inclined from the first platform 31 to the second platform 32 along the vehicle driving direction.

[0035] The lower frame 3 includes a first mounting beam 34 for mounting the drive module 5, located below the first platform 31, and a second mounting beam 35 located below the second platform 32. The first mounting beam 34 and the first platform 31, and the second mounting beam 35 and the second platform 32, are connected and fixed by several connecting beams 6. A third mounting beam 36 extending downwards is located at the rear end of the first platform 31. The second mounting beam 35 and the third mounting beam 36 are respectively located on the front and rear sides of the first mounting beam 34, arranged in a straight line along the vehicle's driving direction. The first mounting beam 34, the second mounting beam 35, and the third mounting beam 36 form a mounting unit, and two sets of the first mounting beam 34, the second mounting beam 35, and the third mounting beam 36 are symmetrically arranged along the width direction of the lower frame 3.

[0036] The bottom frame 3, through the first mounting beam 34, the second mounting beam 35 and the third mounting beam 36, allows the suspension module 8 and the drive module 5 to be installed below the bottom frame 3, solving the problem that the suspension module 8 and the drive module 5 cannot be installed at the front of the existing vehicle. The first mounting beam 34 and the second mounting beam 35 are connected to the first platform 31 and the second platform 32 on the upper layer of the bottom frame 3 through several connecting beams 6, making the installation of the suspension module 8 and the drive module 5 more stable, and the bottom frame 3 has a strong overall load-bearing capacity.

[0037] Furthermore, a connecting structure 7 for connecting to the cargo box is installed on the back side of the third mounting beam 36; the connecting structure 7 includes a connecting frame 71 fixedly connected to the third mounting beam 36. The connecting structure 7 can be matched with various vehicle rear-end structures, increasing the adaptability of the vehicle's front end and maximizing the simplicity, reliability, and ease of processing of the matched rear-end functions.

[0038] To facilitate the installation of the front bulkhead module 1 on the bottom frame, the second platform 32 includes a central frame 321 for connection with the front bulkhead module 1, and side frames 322 are provided on both sides of the central frame 321; the front end of the central frame 321 protrudes beyond the front end of the side frames 322. The bottom end of the front bulkhead module 1 is connected and fixed to the upper front surface of the central frame 321, and the side frames 322 are used to lay the cab floor.

[0039] The first mounting beam 34 is provided with a mounting seat 9 for mounting the drive module 5. The drive module 5 is connected and fixed to the first mounting beam 34 through the mounting seat. The lower part of the bottom frame 3 is provided with a suspension module 8. The suspension module 8 includes a leaf spring 81. One end of the leaf spring 81 is hinged to the second mounting beam 35, and the other end of the leaf spring 81 is hinged to the third mounting beam 36. The second mounting beam 35 and the third mounting beam 36 are respectively provided with mounting seats for hinged to both ends of the leaf spring 81. The suspension module 8 also includes a shock absorber 82. The lower end of the shock absorber 82 is hinged to the leaf spring 81, and the upper end of the shock absorber 82 is hinged to the first mounting beam 34.

[0040] Therefore, the bottom frame 3 bears all the road excitation feedback from the front section through the suspension module 8. This modular front section is also designed and has all the functions of a traditional truck cab, thus combining with other functional units to form a modular front section for a pure electric commercial vehicle.

[0041] A first reinforcing beam 37 extending to the second mounting beam 35 is provided below the connecting frame 33, and the front end of the first mounting beam 34 extends to the first reinforcing beam 37. A second reinforcing beam 38 and a third reinforcing beam 39 are respectively provided between the third mounting beam 36 and the first mounting beam 34, and between the first mounting beam 34 and the second mounting beam 35. Thus, a stable triangular structure is formed between the first reinforcing beam, the second reinforcing beam, and the first mounting beam, enhancing the structural stability between the first platform and the second platform.

[0042] The modular front section of the pure electric commercial vehicle of the present invention includes a cab module, a front drive module, a front suspension module, and a front travel module, wherein the front drive module is connected to the front suspension module and then connected to the cab module.

[0043] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

Claims

1. A modular vehicle front structure, comprising a front bulkhead module (1), side bulkhead modules (2), and a partition frame (4), characterized in that: It also includes a bottom frame (3), the front panel module (1) is disposed at the front of the bottom frame (3), the side panel module (2) is disposed on both sides of the bottom frame (3), and the partition frame (4) is disposed at the rear of the bottom frame (3); The bottom frame (3) includes a first platform (31) and a second platform (32) arranged along the vehicle driving direction. The first platform (31) and the second platform (32) are connected and fixed by a connecting frame (33). A first mounting beam (34) for mounting the drive module (5) is provided below the first platform (31), and a second mounting beam (35) is provided below the second platform (32). The first mounting beam (34) is connected and fixed to the first platform (31), and the second mounting beam (35) is connected and fixed to the second platform (32) by several connecting beams (6). A third mounting beam (36) extending downward is provided at the rear end of the first platform (31); a connecting structure (7) for connecting with the cargo box is installed on the back side of the third mounting beam (36); the connecting structure (7) includes a connecting frame (71) fixedly connected to the third mounting beam (36); The lower part of the bottom frame (3) is provided with a suspension module (8), the suspension module (8) includes a leaf spring (81), one end of the leaf spring (81) is hinged to the second mounting beam (35), and the other end of the leaf spring (81) is hinged to the third mounting beam (36); the suspension module (8) also includes a shock absorber (82), the lower end of the shock absorber (82) is hinged to the leaf spring (81), and the upper end of the shock absorber (82) is hinged to the first mounting beam (34).

2. The modular vehicle front section structure according to claim 1, characterized in that: The bottom frame (3) is a quilted structure; the first platform (31) is set higher than the second platform (32).

3. The modular vehicle front section structure according to claim 1, characterized in that: The connecting frame (33) is inclined from the first platform (31) to the second platform (32) along the vehicle's driving direction.

4. The modular vehicle front section structure according to claim 1, characterized in that: The second platform (32) includes a central frame (321) for connection with the front bulkhead module (1), and side frames (322) are provided on both sides of the central frame (321); the front end of the central frame (321) protrudes beyond the front end of the side frames (322).

5. The modular vehicle front section structure according to claim 1, characterized in that: The first mounting beam (34) is provided with a mounting base (9) for mounting the drive module (5).

6. The modular vehicle front structure according to any one of claims 1-5, characterized in that: A first reinforcing beam (37) extending to the second mounting beam (35) is provided below the connecting frame (33), and the front end of the first mounting beam (34) extends to the first reinforcing beam (37); a second reinforcing beam (38) and a third reinforcing beam (39) are respectively provided between the third mounting beam (36) and the first mounting beam (34) and between the first mounting beam (34) and the second mounting beam (35).

7. The modular vehicle front section structure according to any one of claims 1-5, characterized in that: Two sets of first mounting beams (34), second mounting beams (35) and third mounting beams (36) are symmetrically arranged along the width direction of the bottom frame (3).

8. A vehicle, characterized in that: Includes the modular vehicle front structure as described in any one of claims 1-7.

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