A vehicle chassis and a vehicle having the same

Abstract

This invention provides a vehicle chassis and a vehicle having the same. The vehicle chassis includes a frame assembly, a front module, a middle module, and a rear module. The frame assembly includes a front frame and a rear frame, which are spaced apart along the length of the vehicle body. The front module includes at least one of a cooling module, a low-pressure control module, a high-pressure control module, a front suspension and steering module, an air supply module, and a thermal management module, and is connected to the front frame. The middle module includes an energy storage module and a connecting assembly connected to the energy storage module, and is located between the front and rear frames. The connecting assembly is connected to both the front and rear frames. The rear module includes a rear suspension system and an electric drive axle, and is connected to the rear frame. The embodiments of this application solve the problems of low component interchangeability and high production costs between different vehicle platforms in the prior art.

Description

Technical Field

[0001] This invention relates to the field of vehicle chassis technology, and more specifically, to a vehicle chassis and a vehicle having the same. Background Technology

[0002] In existing technologies, most pure electric commercial vehicle chassis, especially tractor units, adopt an integrated, rigidly connected design. Key components such as the battery pack, motor, electronic control system, and thermal management system are fixedly mounted on the chassis beam, forming an inseparable whole. This design results in a rigid chassis layout, with various systems mutually constraining each other, making it difficult to make rapid and low-cost adjustments based on different user needs (such as driving range, power performance) or technological iterations. The integrated chassis also involves complex assembly processes and long cycles on the production line, and the low interchangeability of parts between different vehicle platforms leads to high production costs.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a vehicle chassis and a vehicle having the same chassis, in order to solve the problems of low component interchangeability and high production costs among different vehicle platforms in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a vehicle chassis is provided, comprising: a frame assembly including a front frame and a rear frame, the front frame and the rear frame being disposed at a distance along the length of the vehicle body; a front module including at least one of a heat dissipation module, a low-pressure control module, a high-pressure control module, a front suspension and steering module, an air supply module, and a thermal management module, the front module being connected to the front frame; a middle module including an energy storage module and a connecting assembly connected to the energy storage module, the middle module being located between the front frame and the rear frame, the connecting assembly being connected to the front frame and the rear frame; and a rear module including a rear suspension system and an electric drive axle, the rear module being connected to the rear frame.

[0006] Furthermore, the rear module also includes: a saddle platform, which is connected to the rear frame. The saddle platform is used to connect to the saddle, and the connection position between the saddle platform and the rear frame is adjustable along the length of the vehicle body.

[0007] Furthermore, the saddle platform has multiple first mounting holes, and the multiple saddle platforms are spaced apart along the length of the vehicle body. The rear frame has multiple second mounting holes, and the multiple second mounting holes are spaced apart along the length of the vehicle body. The saddle platform and the rear frame are connected through any one of the first mounting holes and any one of the second mounting holes to adjust the connection position between the saddle platform and the rear frame.

[0008] Furthermore, the connection assembly includes a first connection bracket and a second connection bracket. The first connection bracket is located on the side of the energy storage module facing the front frame and is connected to the energy storage module and the front frame. The second connection bracket is located on the side of the energy storage module facing the rear frame and is connected to the energy storage module and the rear frame.

[0009] Furthermore, there are two first connecting brackets, which are arranged opposite each other along the width direction of the vehicle body. Each first connecting bracket is connected to the energy storage module and the front frame, and / or there are two second connecting brackets, which are arranged opposite each other along the width direction of the vehicle body. Each second connecting bracket is connected to the energy storage module and the rear frame.

[0010] Furthermore, the first connecting bracket includes a first connecting body and two first support sections. The first connecting body extends along the length of the vehicle body, and the two first support sections extend along the width of the vehicle body and are positioned opposite each other along the height of the vehicle body. The first connecting body is connected to the front frame, and the two first support sections are connected to the energy storage module. Alternatively, the second connecting bracket includes a second connecting body and two second support sections. The second connecting body extends along the length of the vehicle body, and the two second support sections extend along the width of the vehicle body and are positioned opposite each other along the height of the vehicle body. The second connecting body is connected to the rear frame, and the two second support sections are connected to the energy storage module.

[0011] Furthermore, the front frame includes a front longitudinal beam assembly, a front extension, and a front crossbeam. The front extension is located at the end of the front longitudinal beam assembly away from the middle module and is connected to the front longitudinal beam assembly. The front crossbeam is connected to the front extension, and the front crossbeam and the front extension enclose a receiving space. A heat dissipation module is located within the receiving space, and the heat dissipation module is connected to at least one of the front crossbeam and the front extension through a first suspension structure.

[0012] Furthermore, the front frame also includes a front lower protective structure, one end of which is connected to the front crossbeam, and the other end of which is connected to the front extension.

[0013] Furthermore, the front longitudinal beam assembly includes two front longitudinal beams arranged opposite each other along the width direction of the vehicle body. The low-voltage control module and the high-voltage control module are both located between the two front longitudinal beams. The low-voltage control module includes a third connecting bracket, a low-voltage battery, a low-voltage distribution box, and a vehicle controller. The low-voltage battery, the low-voltage distribution box, and the vehicle controller are all connected to the third connecting bracket. The high-voltage control module includes a fourth connecting bracket, a high-voltage distribution box, and a DC-DC converter. The high-voltage distribution box and the DC-DC converter are both connected to the fourth connecting bracket. The third connecting bracket is connected to the front longitudinal beam assembly and is located close to the heat dissipation module. The fourth connecting bracket is connected to the front longitudinal beam assembly and is located between the low-voltage control module and the middle module.

[0014] Furthermore, the front suspension and steering module is located on the outside of the front longitudinal beam assembly. The front suspension and steering module includes a front axle suspension system and a steering system. The front suspension and steering module is connected to the front longitudinal beam assembly through a first suspension bracket. The front suspension and steering module is arranged adjacent to the low-pressure control module.

[0015] Furthermore, the air supply module is located between the front suspension and the steering module and the center module. The air supply module is located on the outside of the front longitudinal beam assembly. The air supply module includes a fifth connecting bracket, an air compressor, an auxiliary air supply module, and an air filter. The air compressor, the auxiliary air supply module, and the air filter are all connected to the fifth connecting bracket, which is connected to the front longitudinal beam assembly.

[0016] Furthermore, the thermal management module is located between the front suspension and the steering module and the center module. The thermal management module is located on the outside of the front longitudinal beam assembly. The air supply module and the thermal management module are arranged opposite each other along the width of the vehicle body. The thermal management module includes a sixth connecting bracket, an air conditioning compressor, and a heater. The air conditioning compressor and the heater are both connected to the sixth connecting bracket, and the sixth connecting bracket is connected to the front longitudinal beam assembly.

[0017] Furthermore, the rear frame includes a rear longitudinal beam assembly, and the rear suspension system has a first connection and a second connection, the first connection being connected to the rear longitudinal beam assembly and the second connection being connected to the electric drive axle.

[0018] According to another aspect of the present invention, a vehicle is provided, the vehicle having a vehicle chassis, the vehicle chassis being the aforementioned vehicle chassis.

[0019] By applying the technical solution of this invention, the vehicle is divided into a front module, a middle module, and a rear module. The front module includes various modules such as a heat dissipation module, a low-pressure control module, a high-pressure control module, a front suspension and steering module, an air supply module, and a thermal management module. The rear module includes a rear suspension system and an electric drive axle. The middle module includes an energy storage module. This modularization of different vehicle components, achieved by splitting the chassis into a front and rear frame and connecting them to different modules, allows for rapid assembly of modules of different specifications to meet various needs, resulting in vehicle chassis that can be customized. When a specific component needs modification, only the corresponding module needs to be disassembled and replaced, improving the chassis's versatility and reducing modification costs. This application's embodiments solve the problems of low component versatility and high production costs between different vehicle platforms in the prior art. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A structural schematic diagram of an embodiment of a vehicle chassis according to the present invention is shown;

[0022] Figure 2 A structural schematic diagram of an embodiment of the front frame according to the present invention is shown;

[0023] Figure 3 A schematic diagram of a front module according to an embodiment of the present invention is shown;

[0024] Figure 4 A structural schematic diagram of an embodiment of the central module according to the present invention is shown;

[0025] Figure 5 A structural schematic diagram of an embodiment of the rear module according to the present invention is shown;

[0026] Figure 6 A schematic diagram of a structure of an embodiment of a heat dissipation module according to the present invention is shown;

[0027] Figure 7 A schematic diagram of a structure according to an embodiment of the first connecting bracket according to the present invention is shown;

[0028] Figure 8 A schematic diagram of a structure according to an embodiment of the second connecting bracket according to the present invention is shown;

[0029] Figure 9 A structural schematic diagram of an embodiment of the rear suspension system according to the present invention is shown.

[0030] The above figures include the following reference numerals:

[0031] 1. Chassis components;

[0032] 11. Front frame; 111. Front longitudinal beam assembly; 1110. Front longitudinal beam; 1120. Accommodation space; 112. Front extension; 113. Front crossbeam; 114. Front lower protective structure;

[0033] 12. Rear frame; 120. Second mounting hole; 121. Rear longitudinal beam assembly;

[0034] 2. Front module;

[0035] 21. Heat dissipation module; 211. Heat sink; 212. Cooling fan;

[0036] 22. Low-voltage control module; 221. Third connecting bracket; 222. Low-voltage battery; 223. Low-voltage distribution box; 224. Vehicle controller;

[0037] 23. High-voltage control module; 231. Fourth connecting bracket; 232. High-voltage distribution box; 233. DC-DC converter;

[0038] 24. Front suspension and steering module;

[0039] 25. Gas supply module; 251. Fifth connecting bracket;

[0040] 26. Thermal management module; 261. Sixth connecting bracket;

[0041] 3. Middle module; 31. Energy storage module; 32. Connecting components;

[0042] 321. First connecting bracket; 3211. First connecting body; 3212. First support section;

[0043] 322. Second connecting bracket; 3221. Second connecting body; 3222. Second support section;

[0044] 4. Rear module; 41. Rear suspension system; 411. Frame connection; 412. Electric drive axle connection;

[0045] 43. Saddle platform; 430. First mounting hole;

[0046] 5. First suspension structure;

[0047] 6. First suspension bracket. Detailed Implementation

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0050] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0051] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0052] Combination Figures 1 to 9 As shown, according to a specific embodiment of this application, a vehicle chassis is provided.

[0053] Specifically, the vehicle chassis includes a frame assembly 1, a front module 2, a middle module 3, and a rear module 4. The frame assembly 1 includes a front frame 11 and a rear frame 12, which are spaced apart along the length of the vehicle body. The front module 2 includes at least one of a cooling module 21, a low-pressure control module 22, a high-pressure control module 23, a front suspension and steering module 24, an air supply module 25, and a thermal management module 26. The front module 2 is connected to the front frame 11. The middle module 3 includes an energy storage module 31 and a connecting component 32 connected to the energy storage module 31. The middle module 3 is located between the front frame 11 and the rear frame 12. The connecting component 32 is connected to both the front frame 11 and the rear frame 12. The rear module 4 includes a rear suspension system and an electric drive axle. The rear module 4 is connected to the rear frame 12.

[0054] Applying the technical solution of this embodiment, the vehicle is divided into a front module 2, a middle module 3, and a rear module 4. The front module 2 includes various modules such as a heat dissipation module 21, a low-pressure control module 22, a high-pressure control module 23, a front suspension and steering module 24, an air supply module 25, and a thermal management module 26. The rear module 4 includes a rear suspension system and an electric drive axle. The middle module 3 includes an energy storage module 31. This modularizes different vehicle components by splitting the chassis into a front frame 11 and a rear frame 12, and connecting the front frame 11 and rear frame 12 to different modules. This achieves coupling between different modules, allowing for rapid combination of modules of different specifications to obtain vehicle chassis that meet various needs. When a specific component of the vehicle needs to be modified individually, only the corresponding module needs to be disassembled and replaced, improving the versatility of the vehicle chassis and reducing the modification cost. This embodiment solves the problems of low component versatility and high production costs between different vehicle platforms in the prior art.

[0055] In this embodiment, the middle module 3 is located between the front frame 11 and the rear frame 12. The connecting component 32 is connected to the front frame 11 and the rear frame 12. The connecting component 32 is precisely aligned with the front and rear frames, which significantly improves the torsional stiffness and bending stiffness of the vehicle chassis. When the energy storage module 31 needs to be disassembled or replaced, the replacement can be completed by simply disconnecting the connecting component 32, which greatly shortens the maintenance time. At the same time, energy storage modules 31 of different sizes can be adapted to the vehicle chassis through the connecting component 32, which improves the versatility between different vehicle platforms. By setting the rear module 4 to include the rear suspension system and the electric drive axle, and connecting the rear module 4 to the rear frame 12, users can select electric drive axles of different power levels according to load requirements and road conditions, which is suitable for multiple scenarios. At the same time, the rear suspension system and the electric drive axle move synchronously, avoiding problems such as wheel track misalignment and abnormal tire wear.

[0056] Specifically, the rear module 4 also includes a saddle platform 43, which is connected to the rear frame 12. The saddle platform 43 is used to connect the saddle, and the connection position between the saddle platform 43 and the rear frame 12 is adjustable along the length of the vehicle body.

[0057] In this embodiment, the rear module 4 also includes a saddle platform 43. The saddle platform 43 is connected to the rear frame 12 and is used to support and install the saddle of the towing trailer. Along the length of the vehicle body, the connection position between the saddle platform 43 and the rear frame 12 is adjustable, so that the saddle platform 43 can be adapted to vehicle chassis of different lengths. There is no need to replace the entire rear module 4 or redesign the frame. Multiple vehicle models can be quickly adapted simply by adjusting the mounting point of the saddle platform 43, which significantly improves the versatility of the chassis. At the same time, it ensures the connection stability between the rear suspension system and the electric drive axle and the rear frame 12, ensuring the power transmission and driving safety of the whole vehicle.

[0058] Specifically, the saddle platform 43 has multiple first mounting holes 430, and the multiple saddle platforms 43 are spaced apart along the length of the vehicle body. The rear frame 12 has multiple second mounting holes 120, and the multiple second mounting holes 120 are spaced apart along the length of the vehicle body. The saddle platform 43 and the rear frame 12 are connected through any one of the first mounting holes 430 and any one of the second mounting holes 120 to adjust the connection position between the saddle platform 43 and the rear frame 12.

[0059] In this embodiment, multiple first mounting holes 430 are provided on the saddle platform 43, and multiple second mounting holes 120 are provided on the rear frame 12. The multiple first mounting holes 430 and multiple second mounting holes 120 are arranged at intervals along the length of the vehicle body. By connecting any one of the first mounting holes 430 of the saddle platform 43 to any one of the second mounting holes 120 of the rear frame 12, the saddle platform 43 can be positioned in multiple selectable positions on the rear frame 12. It can adapt to the saddle installation requirements of trailers of different lengths without replacing parts or adding additional tooling, thereby reducing manufacturing costs and significantly improving the flexibility and assembly efficiency of chassis modular adjustment. Through the combination and matching of prefabricated holes, the connection strength and positioning accuracy between the saddle platform 43 and the rear frame 12 are ensured. By adjusting the position of the saddle platform 43, the axle load distribution of the whole vehicle can be optimized, thereby improving the driving safety of the vehicle.

[0060] In one exemplary embodiment of this application, the saddle platform 43 is bolted to the rear frame 12. After aligning any one of the first mounting holes 430 on the saddle platform 43 with any one of the second mounting holes 120 on the rear frame 12, the bolt is passed through and the nut is tightened to connect the saddle platform 43 to the rear frame 12. The bolted connection facilitates subsequent adjustment of the saddle platform 43's position according to actual needs. In other embodiments, the saddle platform 43 and the rear frame 12 can also be connected using screws, pins, or other connection methods.

[0061] Furthermore, the connection component 32 includes a first connection bracket 321 and a second connection bracket 322. The first connection bracket 321 is located on the side of the energy storage module 31 facing the front frame 11 and is connected to the energy storage module 31 and the front frame 11. The second connection bracket 322 is located on the side of the energy storage module 31 facing the rear frame 12 and is connected to the energy storage module 31 and the rear frame 12.

[0062] In this embodiment, the first connecting bracket 321 connects the energy storage module 31 to the front frame 11, and the second connecting bracket 322 connects the energy storage module 31 to the rear frame 12. The first connecting bracket 321 and the second connecting bracket 322 improve the torsional stiffness of the energy storage module 31 in the length direction of the vehicle body, optimize the load transmission path, effectively avoid the risk of local stress concentration or loosening, significantly improve the connection reliability and vibration resistance of the energy storage module 31 with the frame assembly 1 during vehicle operation, and facilitate the quick installation and removal of the energy storage module 31.

[0063] Preferably, there are two first connecting brackets 321, which are arranged opposite each other along the width of the vehicle body, and each first connecting bracket 321 is connected to the energy storage module 31 and the front frame 11.

[0064] In this embodiment, by setting two first connecting brackets 321 and arranging them opposite each other along the width of the vehicle body, each first connecting bracket 321 connects the energy storage module 31 to the front frame 11. The symmetrically distributed double bracket structure enables the energy storage module 31 to obtain uniform and balanced support in the width of the vehicle body, effectively dispersing the vibration and impact generated during driving, avoiding local stress concentration or loosening caused by unilateral or asymmetrical connection, and significantly improving the connection reliability between the energy storage module 31 and the front frame 11 and the stability of the overall chassis structure.

[0065] Preferably, there are two second connecting brackets 322, which are arranged opposite each other along the width of the vehicle body, and each second connecting bracket 322 is connected to the energy storage module 31 and the rear frame 12.

[0066] In this embodiment, by setting two second connecting brackets 322 and arranging them opposite each other along the width of the vehicle body, each second connecting bracket 322 connects the energy storage module 31 to the rear frame 12. The symmetrically distributed double bracket structure enables the energy storage module 31 to obtain uniform and balanced support in the width of the vehicle body, effectively dispersing the vibration and impact generated during driving, avoiding local stress concentration or loosening caused by unilateral or asymmetrical connection, and significantly improving the connection reliability between the energy storage module 31 and the rear frame 12 and the stability of the overall chassis structure.

[0067] Preferably, the first connecting bracket 321 includes a first connecting body 3211 and two first support sections 3212. The first connecting body 3211 extends along the length of the vehicle body, and the two first support sections 3212 extend along the width of the vehicle body. The two first support sections 3212 are arranged opposite each other along the height of the vehicle body. The first connecting body 3211 is connected to the front frame 11, and the two first support sections 3212 are connected to the energy storage module 31.

[0068] In this embodiment, by extending the first connecting body 3211 along the length of the vehicle body and the two first support sections 3212 along the width of the vehicle body and being arranged opposite each other along the height of the vehicle body, the load transmitted by the energy storage module is evenly borne by the two first support sections 3212, reducing the risk of stress concentration. During installation, the energy storage module 31 is positioned and constrained by the two first support sections 3212, eliminating the need for manual height adjustment, improving assembly efficiency, and avoiding assembly errors.

[0069] Preferably, the second connecting bracket 322 includes a second connecting body 3221 and two second supporting sections 3222. The second connecting body 3221 extends along the length of the vehicle body, and the two second supporting sections 3222 extend along the width of the vehicle body. The two second supporting sections 3222 are arranged opposite each other along the height of the vehicle body. The second connecting body 3221 is connected to the rear frame 12, and the two second supporting sections 3222 are connected to the energy storage module 31.

[0070] In this embodiment, by extending the second connecting body 3221 along the length of the vehicle body and the two second support sections 3222 along the width of the vehicle body and being positioned opposite each other along the height of the vehicle body, the load transmitted by the energy storage module is evenly borne by the two second support sections 3222, reducing the risk of stress concentration. During installation, the energy storage module 31 is positioned and constrained by the two second support sections 3222, eliminating the need for manual height adjustment, improving assembly efficiency, and avoiding assembly errors.

[0071] Specifically, the front frame 11 includes a front longitudinal beam assembly 111, a front extension 112, and a front crossbeam 113. The front extension 112 is located at the end of the front longitudinal beam assembly 111 away from the middle module 3 and is connected to the front longitudinal beam assembly 111. The front crossbeam 113 is connected to the front extension 112. The front crossbeam 113 and the front extension 112 enclose a receiving space 1120. The heat dissipation module 21 is located in the receiving space 1120. The heat dissipation module 21 is connected to at least one of the front crossbeam 113 and the front extension 112 through a first suspension structure 5.

[0072] In this embodiment, the front extension 112 in the front frame 11 is disposed at the end of the front longitudinal beam assembly 111 away from the middle module 3 and is fixedly connected to the front longitudinal beam assembly 111. The front crossbeam 113 and the front extension 112 are connected to each other and together form a receiving space 1120. The receiving space 1120 provides precise positioning for the heat dissipation module 21, so that it is not displaced by external forces during vehicle operation. By connecting the heat dissipation module 21 to at least one of the front crossbeam 113 or the front extension 112 through the first suspension structure 5, the first suspension structure 5 can buffer the vibration impact when the heat dissipation module 21 is subjected to the impact of the vehicle load, and avoid the load being directly transmitted to the heat dissipation module 21, which significantly improves the integration stability and operational reliability of the heat dissipation module 21 in the front module 2.

[0073] Preferably, the front frame 11 further includes a front lower protective structure 114, one end of which is connected to the front crossbeam 113, and the other end of which is connected to the front extension 112.

[0074] In this embodiment, by connecting one end of the front lower protective structure 114 in the front frame 11 to the front crossbeam 113 and the other end to the front extension 112, the front lower protective structure 114 effectively blocks external impacts and prevents foreign objects from entering the receiving space 1120. The setting of the front lower protective structure 114 not only improves the overall rigidity and impact resistance of the front end area of ​​the front frame 11, but also protects the heat dissipation module 21, ensuring the safe and reliable operation of the heat dissipation module 21 under complex working conditions, so that the heat dissipation module 21 can still maintain a good vibration reduction and isolation effect while being stably installed.

[0075] Specifically, the front longitudinal beam assembly 111 includes two front longitudinal beams 1110 arranged opposite each other along the width direction of the vehicle body. The low-voltage control module 22 and the high-voltage control module 23 are both located between the two front longitudinal beams 1110. The low-voltage control module 22 includes a third connecting bracket 221, a low-voltage battery 222, a low-voltage distribution box 223, and a vehicle controller 224. The low-voltage battery 222, the low-voltage distribution box 223, and the vehicle controller 224 are all connected to the third connecting bracket 221. The high-voltage control module 23 includes a fourth connecting bracket 231, a high-voltage distribution box 232, and a DC-DC converter 233. The high-voltage distribution box 232 and the DC-DC converter 233 are both connected to the fourth connecting bracket 231. The third connecting bracket 221 is connected to the front longitudinal beam assembly 111 and is located close to the heat dissipation module 21. The fourth connecting bracket 231 is connected to the front longitudinal beam assembly 111 and is located between the low-voltage control module 22 and the middle module 3.

[0076] In this embodiment, the low-voltage battery 222, low-voltage distribution box 223, and vehicle controller 224 are all connected to the third connecting bracket 221 to integrate a separately detachable low-voltage control module 22. The high-voltage distribution box 232 and the DC-DC (Direct Current to Direct Current) converter are both connected to the fourth connecting bracket 231, which can be integrated into a separately detachable high-voltage control module 23. This facilitates internal installation of the module before assembly with the vehicle, improving assembly efficiency. The low-voltage control module 22 and high-voltage control module 23 are spaced apart between the two front longitudinal beams 1110, optimizing the distribution of the vehicle's center of gravity and improving driving stability. By connecting the third connecting bracket 221 to the front longitudinal beam assembly 111 and placing it close to the heat dissipation module 21, the low-voltage control module 22 is placed adjacent to the heat dissipation module 21. The rapid heat conduction and thermal management effectively reduce the risk of performance degradation of low-voltage electronic components due to temperature rise. At the same time, the fourth connecting bracket 231 is connected to the front longitudinal beam assembly 111 and located between the low-voltage control module 22 and the middle module 3, which physically isolates the high-voltage control module 23 from the low-voltage control module 22. This avoids electromagnetic interference of high-voltage power signals to low-voltage control signals (such as high-voltage surges, electromagnetic interference, etc., which may interfere with the vehicle controller), and shortens the connection line length from the high-voltage distribution box 232 to the middle module 3. This optimizes the wiring harness layout inside the high and low voltage modules and reduces the overall vehicle cost.

[0077] Specifically, the front suspension and steering module 24 is located outside the front longitudinal beam assembly 111. The front suspension and steering module 24 includes a front axle suspension system and a steering system. The front suspension and steering module 24 is connected to the front longitudinal beam assembly 111 through the first suspension bracket 6. The front suspension and steering module 24 is arranged adjacent to the low-pressure control module 22.

[0078] In this embodiment, by placing the front suspension and steering module 24 outside the front longitudinal beam assembly 111, interference between the front suspension and steering module 24 and other components is avoided, providing more ample installation space for the high-voltage control module 23, low-voltage control module 22, etc. The front suspension and steering module 24 is connected to the front longitudinal beam assembly 111 through the first suspension bracket 6, which improves the structural rigidity and torsional resistance of the front suspension and steering module 24. By setting the front suspension and steering module 24 adjacent to the low-voltage control module 22, the length of the signal line and communication line is shortened, the risk of signal attenuation and electromagnetic interference is reduced, and the response speed of steering control is improved.

[0079] Furthermore, the air supply module 25 is located between the front suspension and steering module 24 and the middle module 3. The air supply module 25 is located on the outside of the front longitudinal beam assembly 111. The air supply module 25 includes a fifth connecting bracket 251, an air compressor, an auxiliary air supply module and an air filter. The air compressor, the auxiliary air supply module and the air filter are all connected to the fifth connecting bracket 251. The fifth connecting bracket 251 is connected to the front longitudinal beam assembly 111.

[0080] In this embodiment, by positioning the air supply module 25 between the front suspension and steering module 24 and the middle module 3, and by setting it on the outside of the front longitudinal beam assembly 111, interference between the air supply module 25 and the components of the front suspension and steering module 24 and the middle module 3 is avoided. By connecting the air compressor, auxiliary air supply module, air filter and fifth connecting bracket 251, an integrated air supply system is formed, which improves the efficiency of modular assembly. By connecting the fifth connecting bracket 251 to the front longitudinal beam assembly 111, the rigidity of the air supply module 25 on the vehicle frame is improved, ensuring the stable installation of the air supply module 25.

[0081] Furthermore, the thermal management module 26 is located between the front suspension and steering module 24 and the middle module 3. The thermal management module 26 is located on the outside of the front longitudinal beam assembly 111. The air supply module 25 and the thermal management module 26 are arranged opposite each other along the width direction of the vehicle body. The thermal management module 26 includes a sixth connecting bracket 261, an air conditioning compressor, and a heater. The air conditioning compressor and the heater are both connected to the sixth connecting bracket 261, and the sixth connecting bracket 261 is connected to the front longitudinal beam assembly 111.

[0082] In this embodiment, by placing the thermal management module 26 between the front suspension and steering module 24 and the middle module 3, and on the outside of the front longitudinal beam assembly 111, the thermal management module 26 and the air supply module 25 are symmetrically distributed on both sides of the front longitudinal beam assembly 111, thus avoiding the load imbalance problem caused by the unilateral arrangement of the modules. By fixing the sixth connecting bracket 261 in the thermal management module 26 to the air conditioning compressor and heater, and reliably connecting the sixth connecting bracket 261 to the front longitudinal beam assembly 111, not only are the components of the thermal management module 26 centrally installed, but the rigidity and stability of the overall structure are also improved. At the same time, the symmetrical layout optimizes the lateral mass distribution of the chassis, enhancing the dynamic balance and handling stability during vehicle operation.

[0083] Furthermore, the rear frame 12 includes a rear longitudinal beam assembly 121, and the rear suspension system has a first connecting part and a second connecting part, the first connecting part being connected to the rear longitudinal beam assembly 121, and the second connecting part being connected to the electric drive axle.

[0084] In this embodiment, by connecting the first connecting part to the rear longitudinal beam assembly 121, a reliable and stable connection between the rear suspension system and the rear frame 12 is ensured. By connecting the second connecting part to the electric drive axle, the motor torque can be directly and efficiently transmitted to the wheel ends, significantly improving power transmission efficiency. Simultaneously, the structure of the rear frame 12 is optimized, thereby optimizing the load transmission path. Through the first and second connecting parts of the rear suspension system, the rear longitudinal beam assembly 121, the rear suspension system, and the electric drive axle can be easily disassembled and assembled, allowing for component replacement according to assembly requirements.

[0085] Specifically, the first connecting part and the second connecting part can be additional connecting brackets. The connecting brackets are connected to the rear longitudinal beam assembly 121 and the electric drive bridge through the opening design. The specific connection method can be bolt connection, screw connection, etc.

[0086] According to another specific embodiment of this application, a vehicle is also provided, the vehicle having a vehicle chassis, the vehicle chassis being the aforementioned vehicle chassis.

[0087] By applying the technical solution of this embodiment, by setting a front frame 11 and a rear frame 12 on the frame assembly 1, and by setting the front frame 11 and the rear frame 12 at a distance along the length of the vehicle body, sufficient assembly space is left between the front frame 11 and the rear frame 12, which facilitates the installation of the middle module 3 and improves the space utilization of the whole vehicle; by setting the front module 2 to include at least one of the following: a heat dissipation module 21, a low-pressure control module 22, a high-pressure control module 23, a front suspension and steering module 24, an air supply module 25, and a thermal management module 26, modules of different specifications can be quickly combined as needed, reducing the weight and cost of the whole vehicle; by connecting the front module 2 to the front frame 11, the front module 2 and the front frame 11 can be quickly assembled, improving the installation and maintenance efficiency of the whole vehicle; by setting the middle module 3 to include an energy storage module 31 and a connecting component 32 connected to the energy storage module 31, and by setting the middle module 3 ... Block 3 is positioned between the front frame 11 and the rear frame 12. Connecting component 32 is connected to both the front and rear frames, and precisely aligned with them, significantly improving the torsional and bending stiffness of the vehicle chassis. When the energy storage module 31 needs to be disassembled or replaced, replacement can be completed simply by disconnecting connecting component 32, greatly shortening the vehicle's maintenance time. At the same time, energy storage modules 31 of different sizes can be adapted to the vehicle chassis through connecting component 32, improving the versatility between different vehicle platforms. By configuring the rear module 4 to include the rear suspension system and electric drive axle, and connecting the rear module 4 to the rear frame 12, users can select electric drive axles with different power levels according to load requirements and road conditions. The same vehicle can be adapted to multiple scenarios by replacing the rear module 4. Simultaneously, the rear suspension system and electric drive axle move synchronously, avoiding wheel track misalignment and abnormal tire wear, thus improving the overall service life of the vehicle.

[0088] According to another specific embodiment of this application, an embodiment of a modular new energy commercial vehicle chassis structure is also provided.

[0089] Specifically, such as Figure 1 As shown, the core of the modular new energy commercial vehicle chassis structure lies in the fact that the chassis consists of three functionally and structurally independent integrated modules: front module 2, middle module 3, and rear module 4. These three modules are connected together by bolts via front and rear brackets on the middle module. These three modules can be arbitrarily combined according to different performance requirements to quickly form a complete and fully functional vehicle chassis.

[0090] Specifically, the front module 2 is an integrated functional unit at the front of the chassis, which integrates five major functional sub-modules: heat dissipation, high and low voltage electronic control, front suspension and steering, air supply and thermal management.

[0091] Furthermore, the heat dissipation module 21 includes a heat sink 211 and a cooling fan 212, which are fixed to a rigid frame structure composed of a front extension 112, a front crossbeam 113 and a front lower protective structure 114 by a suspension flexible connection, forming an independent and complete heat dissipation assembly.

[0092] Preferably, the high and low voltage control submodules are further divided into a high voltage control module 23 and a low voltage control module 22. The high voltage control module 23 consists of a high voltage distribution box 232 and a DC-DC converter 233; the low voltage control module 22 consists of a low voltage battery 222, a low voltage distribution box 223, and a vehicle controller 224. Each unit is rigidly connected and integrated with the chassis frame through a dedicated connecting bracket.

[0093] Preferably, the front suspension and steering module 24 includes a front axle suspension system and a steering system, which are connected to the front end of the frame longitudinal beam through a suspension bracket, and undertake the front load-bearing and steering functions.

[0094] Preferably, the air supply module 25 includes an air compressor, an auxiliary air supply module and an air filter, which are rigidly connected to the chassis frame via a dedicated connecting bracket.

[0095] Preferably, the thermal management module 26 includes a water pump, an air conditioning compressor, a PTC (short for PTC heater, PTC stands for Positive Temperature Coefficient thermistor), a multi-way valve and a flow channel plate, which are responsible for controlling the vehicle's cooling and heating as well as the distribution of coolant, and are rigidly connected to the chassis frame through a dedicated connecting bracket.

[0096] Preferably, the central module 3 is the energy supply center of the vehicle, with the core being the energy storage module 31 (e.g., a power battery pack). This module is stably and reliably connected to the front and rear longitudinal beams of the chassis through specially designed front and rear connecting brackets at both ends, forming the structural and energy core of the chassis.

[0097] Preferably, the rear module 4 is the power output unit of the entire vehicle, employing a highly integrated rear suspension system 41 and an electric drive axle. This module is connected to the rear of the frame via a frame connection part 411, providing driving capability and rear load-bearing capacity, and is connected to the electric drive axle via an electric drive axle connection part 412. The saddle position is adjustable to accommodate trailers of different lengths, allowing for the creation of trains for various scenarios. A mounting hole (i.e., the aforementioned first mounting hole 430) is pre-drilled every 50mm on the saddle platform 43. By installing the saddle at different mounting hole positions, the saddle position is adjustable, accommodating trailers of different lengths and enabling the creation of trains for different scenarios.

[0098] The technical solution adopted in this embodiment has the following effects:

[0099] (1) Achieving high flexibility and customizability: By dividing the chassis into three core modules—front, middle, and rear—manufacturers can quickly combine modules of different specifications according to customer order requirements, just like "building blocks."

[0100] (2) Significantly improves production and maintenance efficiency and reduces lifecycle costs: Each module can be pre-assembled and tested independently on the production side, and then quickly connected on the final assembly line. This achieves modular and platform-based production, reducing manufacturing costs. On the maintenance side, when a system malfunctions, the entire module can be disassembled and replaced with a working one, allowing the vehicle to quickly return to operation. This greatly shortens maintenance time and increases vehicle uptime.

[0101] (3) Facilitates technology upgrades and iterations: When more advanced technologies emerge, only the corresponding modules need to be redesigned and verified, without changing the entire chassis architecture;

[0102] (4) Optimize chassis layout and performance: Integrate systems with similar functions into the same module to make the chassis pipeline layout more regular and the space utilization rate higher.

[0103] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0104] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0105] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0106] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle chassis, characterized in that, include: A frame assembly (1) includes a front frame (11) and a rear frame (12), the front frame (11) and the rear frame (12) being arranged at a distance along the length of the vehicle body; The front module (2) includes at least one of a heat dissipation module (21), a low-pressure control module (22), a high-pressure control module (23), a front suspension and steering module (24), an air supply module (25), and a thermal management module (26), and the front module (2) is connected to the front frame (11); The middle module (3) includes an energy storage module (31) and a connecting component (32) connected to the energy storage module (31). The middle module (3) is located between the front frame (11) and the rear frame (12). The connecting component (32) is connected to the front frame (11) and the rear frame (12). The rear module (4) includes a rear suspension system and an electric drive axle, and the rear module (4) is connected to the rear frame (12).

2. The vehicle chassis according to claim 1, characterized in that, The rear module (4) also includes: The saddle platform (43) is connected to the rear frame (12). The saddle platform (43) is used to connect the saddle. Along the length of the vehicle body, the connection position between the saddle platform (43) and the rear frame (12) is adjustable.

3. The vehicle chassis according to claim 2, characterized in that, The saddle platform (43) has multiple first mounting holes (430), and the multiple saddle platforms (43) are spaced apart along the length of the vehicle body. The rear frame (12) has multiple second mounting holes (120), and the multiple second mounting holes (120) are spaced apart along the length of the vehicle body. The saddle platform (43) and the rear frame (12) are connected through any one of the first mounting holes (430) and any one of the second mounting holes (120) to adjust the connection position of the saddle platform (43) and the rear frame (12).

4. The vehicle chassis according to claim 3, characterized in that, The connection component (32) includes a first connection bracket (321) and a second connection bracket (322). The first connection bracket (321) is located on the side of the energy storage module (31) facing the front frame (11) and is connected to the energy storage module (31) and the front frame (11). The second connection bracket (322) is located on the side of the energy storage module (31) facing the rear frame (12) and is connected to the energy storage module (31) and the rear frame (12).

5. The vehicle chassis according to claim 4, characterized in that, There are two first connecting brackets (321), which are arranged opposite each other along the width direction of the vehicle body. Each first connecting bracket (321) is connected to the energy storage module (31) and the front frame (11). Alternatively, there are two second connecting brackets (322), which are arranged opposite each other along the width direction of the vehicle body. Each second connecting bracket (322) is connected to the energy storage module (31) and the rear frame (12).

6. The vehicle chassis according to claim 4 or 5, characterized in that, The first connecting bracket (321) includes a first connecting body (3211) and two first support sections (3212). The first connecting body (3211) extends along the length of the vehicle body, and the two first support sections (3212) extend along the width of the vehicle body. The two first support sections (3212) are arranged opposite each other along the height of the vehicle body. The first connecting body (3211) is connected to the front frame (11), and the two first support sections (3212) are connected to the energy storage module (31). Alternatively, the second connecting bracket (322) includes a second connecting body (3221) and two second support sections (3222). The second connecting body (3221) extends along the length of the vehicle body, and the two second support sections (3222) extend along the width of the vehicle body. The two second support sections (3222) are arranged opposite each other along the height of the vehicle body. The second connecting body (3221) is connected to the rear frame (12), and the two second support sections (3222) are connected to the energy storage module (31).

7. The vehicle chassis according to any one of claims 1-4, characterized in that, The front frame (11) includes a front longitudinal beam assembly (111), a front extension (112), and a front crossbeam (113). The front extension (112) is located at the end of the front longitudinal beam assembly (111) away from the middle module (3) and is connected to the front longitudinal beam assembly (111). The front crossbeam (113) is connected to the front extension (112). The front crossbeam (113) and the front extension (112) enclose a receiving space (1120). The heat dissipation module (21) is located in the receiving space (1120). The heat dissipation module (21) is connected to at least one of the front crossbeam (113) and the front extension (112) through a first suspension structure (5).

8. The vehicle chassis according to claim 7, characterized in that, The front frame (11) also includes a front lower protective structure (114), one end of which is connected to the front crossbeam (113), and the other end of which is connected to the front extension (112).

9. The vehicle chassis according to claim 7, characterized in that, The front longitudinal beam assembly (111) includes two front longitudinal beams (1110) arranged opposite each other along the width direction of the vehicle body. The low-voltage control module (22) and the high-voltage control module (23) are both located between the two front longitudinal beams (1110). The low-voltage control module (22) includes a third connecting bracket (221), a low-voltage battery (222), a low-voltage distribution box (223), and a vehicle controller (224). The low-voltage battery (222), the low-voltage distribution box (223), and the vehicle controller (224) are all connected to the third connecting bracket (221). The high-voltage control module (23) includes a fourth connecting bracket (231), a high-voltage distribution box (232), and a DC-DC converter (233). The high-voltage distribution box (232) and the DC-DC converter (233) are both connected to the fourth connecting bracket (231). The third connecting bracket (221) is connected to the front longitudinal beam assembly (111) and is located close to the heat dissipation module (21). The fourth connecting bracket (231) is connected to the front longitudinal beam assembly (111) and is located between the low-voltage control module (22) and the middle module (3).

10. The vehicle chassis according to claim 9, characterized in that, The front suspension and steering module (24) is located outside the front longitudinal beam assembly (111). The front suspension and steering module (24) includes a front axle suspension system and a steering system. The front suspension and steering module (24) is connected to the front longitudinal beam assembly (111) through a first suspension bracket (6). The front suspension and steering module (24) is arranged adjacent to the low-pressure control module (22).

11. The vehicle chassis according to claim 10, characterized in that, The air supply module (25) is located between the front suspension and steering module (24) and the middle module (3). The air supply module (25) is located outside the front longitudinal beam assembly (111). The air supply module (25) includes a fifth connecting bracket (251), an air compressor, an auxiliary air supply module and an air filter. The air compressor, the auxiliary air supply module and the air filter are all connected to the fifth connecting bracket (251). The fifth connecting bracket (251) is connected to the front longitudinal beam assembly (111).

12. The vehicle chassis according to claim 11, characterized in that, The thermal management module (26) is located between the front suspension and steering module (24) and the middle module (3). The thermal management module (26) is located on the outside of the front longitudinal beam assembly (111). The air supply module (25) and the thermal management module (26) are arranged opposite to each other along the width of the vehicle body. The thermal management module (26) includes a sixth connecting bracket (261), an air conditioning compressor, and a heater. The air conditioning compressor and the heater are both connected to the sixth connecting bracket (261). The sixth connecting bracket (261) is connected to the front longitudinal beam assembly (111).

13. The vehicle chassis according to claim 3, characterized in that, The rear frame (12) includes a rear longitudinal beam assembly (121), and the rear suspension system has a first connection and a second connection, the first connection being connected to the rear longitudinal beam assembly (121) and the second connection being connected to the electric drive axle.

14. A vehicle, characterized in that, The vehicle has a vehicle chassis, which is the vehicle chassis according to any one of claims 1-13.

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