New energy heavy truck chassis and vehicle

Abstract

The utility model discloses a new energy heavy truck chassis and a vehicle, and relates to the technical field of vehicles. The new energy heavy truck chassis comprises a frame, a cabin frame, an energy storage module and a driving system, the cabin frame, the energy storage module and the driving system are arranged on the frame and are sequentially arranged in the direction from a truck head to a truck tail, and the energy storage module comprises a battery frame, a first battery layer and a second battery layer, the first battery layer is located above the second battery layer, the first battery layer comprises a plurality of longitudinal battery blocks, the second battery layer comprises a plurality of transverse battery blocks, the longitudinal battery blocks extend in the direction from the vehicle head to the vehicle tail, and the first battery layer and the vehicle frame are located on the same level. The loading electric quantity can be improved, the whole vehicle layout is optimized, and the assembling efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a new energy heavy truck chassis and vehicle. Background Technology

[0002] With the transformation of the global energy structure and increasingly stringent environmental regulations, new energy heavy-duty trucks have entered a golden age of rapid development. Penetration rates are climbing year by year, and application scenarios are becoming increasingly diverse. The market is also placing higher demands on vehicle range, safety, and handling stability; this growing market demand is also placing higher requirements on the production pace of new energy heavy-duty trucks.

[0003] Currently, most new energy heavy trucks adopt a "rear-mounted" battery frame. However, this structure has many problems: First, it has poor handling stability. Due to the high position of the "rear-mounted" battery frame, coupled with the large weight of the power battery and the frame itself, the vehicle's center of gravity is raised, seriously affecting the vehicle's handling stability. Second, it restricts the driver's visibility. The battery system is located behind the cab, obstructing the driver's view through the rear window, making it difficult for the driver to observe the situation behind. Third, it has poor driving safety. In the event of a collision, because the battery system is located behind the cab, the cab's rearward crumple zone is limited, increasing the risk of injury or death to the occupants. Fourth, it has a low cargo volume ratio. The battery system occupies space in the superstructure (trailer, cargo box), greatly reducing the vehicle's cargo volume ratio.

[0004] To address the issues with rear-mounted battery frames, a side-mounted battery solution has emerged in the industry, but this solution also has its drawbacks. The maximum capacity of a side-mounted battery solution is currently only about 400kWh, resulting in limited vehicle range. Furthermore, the assembly process requires separate installation of the left and right battery modules, making the operation cumbersome. Utility Model Content

[0005] The purpose of this application is to provide a new energy heavy truck chassis and vehicle that can increase the load power, optimize the overall vehicle layout, and improve assembly efficiency.

[0006] The embodiments of this application are implemented as follows:

[0007] One aspect of this application provides a new energy heavy-duty truck chassis, including a frame and a nacelle frame, an energy storage module, and a drive system mounted on the frame. The nacelle frame, the energy storage module, and the drive system are arranged sequentially from the front to the rear of the vehicle. The energy storage module includes a battery frame and a first battery layer and a second battery layer located on the battery frame. The first battery layer is located above the second battery layer. The first battery layer includes a plurality of longitudinal battery blocks, and the second battery layer includes a plurality of transverse battery blocks. The longitudinal battery blocks extend from the front to the rear of the vehicle, and the first battery layer and the frame are located at the same level.

[0008] Optionally, as an implementable method, both the transverse battery block and the longitudinal battery block are configured as three blocks, with the longitudinal battery block located in the middle of the first battery layer inside the vehicle frame, and the longitudinal battery blocks located on both sides of the first battery layer located on both sides of the vehicle frame.

[0009] Optionally, as an implementable approach, a control module, a steering module, a cooling unit, and a braking module are installed on the nacelle frame. The control module is electrically connected to the drive system, the energy storage module, the steering module, the cooling unit, and the braking module. The cooling pipes of the cooling unit flow through the drive system and the energy storage module.

[0010] Optionally, as one possible implementation, the nacelle frame has a first mounting layer and a second mounting layer, the second mounting layer being located above the first mounting layer, the braking module and the cooling unit being mounted on the first mounting layer, and the control module and the steering module being mounted on the second mounting layer.

[0011] Alternatively, as an implementable approach, the first mounting layer may also be equipped with a low-voltage battery that provides power to the vehicle's electrical equipment.

[0012] Optionally, as an implementable method, the vehicle frame is a rectangular frame composed of longitudinal beams and crossbeams, the crossbeams are connected to the longitudinal beams through crossbeam connectors, the nacelle frame is disposed at the front end of the rectangular frame, and the longitudinal beams are sandwiched between two adjacent longitudinal battery blocks.

[0013] Alternatively, as an implementable method, the beam connector includes a transverse connecting portion and a longitudinal connecting portion, wherein the length of the longitudinal connecting portion is greater than the length of the transverse connecting portion.

[0014] Optionally, as an implementable method, a wiring harness bracket is also provided on one side of the vehicle frame. The wiring harness bracket has a U-shaped design, and the wiring harness bracket and the vehicle frame together form a wiring harness through hole.

[0015] Optionally, as an implementable approach, the control module is an integrated control module, which controls the steering module, the cooling unit, the braking module, the energy storage module, and the drive system.

[0016] In another aspect of this application, a vehicle is provided, including the new energy heavy truck chassis described in any of the above embodiments.

[0017] The beneficial effects of the embodiments of this application include:

[0018] The new energy heavy-duty truck chassis and vehicle provided in this application include a frame and a nacelle frame, energy storage module, and drive system mounted on the frame. The nacelle frame, energy storage module, and drive system are arranged sequentially from the front to the rear of the vehicle. The energy storage module includes a battery frame and a first battery layer and a second battery layer located on the battery frame. The first battery layer is located above the second battery layer and includes multiple longitudinal battery blocks. The second battery layer includes multiple transverse battery blocks. The longitudinal battery blocks extend from the front to the rear of the vehicle, and the first battery layer is located at the same level as the frame. This unique energy storage module design, on the one hand, lowers the vehicle's center of gravity by placing the first battery layer at the same level as the frame, effectively improving the vehicle's handling and stability compared to the traditional "rear-mounted" battery frame; on the other hand, the arrangement of the energy storage module does not obstruct the driver's rear window view, allowing the driver to clearly observe the rear situation and ensuring driving safety; at the same time, the reasonable layout provides sufficient rearward crumple space for the cab in the event of a collision, further improving the safety of the occupants. Furthermore, the energy storage module arrangement does not occupy the space of the superstructure (trailer, cargo box), thus increasing the vehicle's cargo volume ratio. In terms of assembly, compared to the cumbersome three-stage assembly process required by the all-longitudinal battery design, the energy storage module structure of this application has both the transverse and longitudinal battery blocks mounted on the battery frame during assembly. The energy storage module is then mounted on the vehicle frame via the battery frame, reducing the number of assembly steps and improving production speed and assembly efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a new energy heavy-duty truck chassis provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of the energy storage module in the chassis of a new energy heavy truck provided in an embodiment of this application;

[0022] Figure 3 This is a structural schematic diagram of the engine compartment frame in the new energy heavy truck chassis provided in the embodiments of this application;

[0023] Figure 4 One of the partial views of the chassis in the new energy heavy truck provided in the embodiments of this application;

[0024] Figure 5 This is a second partial view of the chassis of a new energy heavy-duty truck provided in an embodiment of this application.

[0025] Icons: 100-New Energy Heavy Truck Chassis; 110-Vehicle Frame; 111-Wiring Harness Bracket; 112-Crossbeam; 113-Crossbeam Connector; 120-Engine Cabin Frame; 121-Control Module; 122-Brake Module; 123-Cooling Unit; 124-Steering Module; 125-First Mounting Layer; 126-Second Mounting Layer; 127-Low-Voltage Battery; 130-Energy Storage Module; 131-Battery Frame; 132-Transverse Battery Block; 133-Vertical Battery Block; 140-Drive System. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Please refer to Figure 1 and Figure 2This embodiment provides a new energy heavy truck chassis 100, including a frame 110 and a nacelle frame 120, an energy storage module 130 and a drive system 140 mounted on the frame 110. The nacelle frame 120, the energy storage module 130 and the drive system 140 are arranged sequentially from the front to the rear of the vehicle. The energy storage module 130 includes a battery frame 131 and a first battery layer and a second battery layer located on the battery frame 131. The first battery layer is located above the second battery layer. The first battery layer includes a plurality of longitudinal battery blocks 133. The second battery layer includes a plurality of transverse battery blocks 132. The longitudinal battery blocks 133 extend from the front to the rear of the vehicle, and the first battery layer and the frame 110 are located on the same layer.

[0031] This unique energy storage module design, on the one hand, lowers the vehicle's center of gravity by placing the first battery layer on the same layer as the frame 110, effectively improving handling and stability compared to traditional "rear-mounted" battery frames. On the other hand, the arrangement of the energy storage module 130 does not obstruct the driver's rear window view, allowing the driver to clearly observe the rear situation and ensuring driving safety. Simultaneously, the rational layout provides ample rearward crumple space for the cab in the event of a collision, further enhancing the safety of passengers. Furthermore, the energy storage module 130 arrangement does not occupy space in the superstructure (trailer, cargo box), increasing the vehicle's cargo volume ratio. In terms of assembly, compared to the cumbersome three-stage assembly process required by the all-longitudinal battery design, the energy storage module 130 structure of this application has both the transverse battery block 132 and the longitudinal battery block 133 mounted on the battery frame 131 during assembly. The energy storage module 130 is then mounted on the frame 110 via the battery frame 131, reducing the number of assembly steps and improving production speed and assembly efficiency. It should be noted that the battery frame 131 adopts an integrated frame structure, which can improve the overall stability of the energy storage module 130.

[0032] Furthermore, to ensure the charging efficiency of the new energy heavy truck, the chassis of this new energy heavy truck adopts an 800V platform and a dual-gun 600A charging solution.

[0033] In one possible embodiment of this application, such as Figure 1 As shown, both the horizontal battery block 132 and the vertical battery block 133 are configured as three blocks. The vertical battery block 133 located in the middle of the first battery layer is located inside the frame 110, and the vertical battery blocks 133 located on both sides of the first battery layer are located on both sides of the frame 110.

[0034] The central longitudinal battery pack is located within the frame 110, while the two symmetrical longitudinal battery packs are distributed on both sides of the frame 110. Combined with the transverse battery packs of the second battery layer, this makes the center of gravity of the energy storage module 130 more balanced, further lowering the vehicle's center of gravity and reducing the risk of roll due to center of gravity shift during driving. This results in greater vehicle stability during cornering and lane changes, and maintains good handling performance even on bumpy or tilted road conditions. The well-organized battery pack layout makes full use of the space around and inside the frame 110 without occupying space in the superstructure (trailer, cargo box). Compared to the cluttered layout of the energy storage module 130, this design allows for more batteries to be placed within the same chassis space. While ensuring range, it frees up more loading space for the trailer and cargo box, increasing the vehicle's cargo volume ratio and improving transportation efficiency.

[0035] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, a control module 121, a steering module 124, a cooling unit 123, and a braking module 122 are installed on the nacelle frame 120. The control module 121 is electrically connected to the drive system 140, the energy storage module 130, the steering module 124, the cooling unit 123, and the braking module 122. The cooling pipes of the cooling unit 123 flow through the drive system 140 and the energy storage module 130.

[0036] Specifically, the new energy heavy-duty truck chassis 100 of this application includes a frame 110 and a nacelle frame 120, an energy storage module 130, and a drive system 140 mounted on the frame 110. The nacelle frame 120, the energy storage module 130, and the drive system 140 are arranged sequentially from the front to the rear of the vehicle. The nacelle frame 120 plays a crucial integrating role in the entire chassis structure, and a control module 121, a steering module 124, a cooling unit 123, and a braking module 122 are mounted on it. The control module 121 is electrically connected to the drive system 140, the energy storage module 130, the steering module 124, the cooling unit 123, and the braking module 122. Through this electrical connection, the control module 121 can monitor and control the operating status of each module and system in real time, realizing coordinated control of all components of the new energy heavy-duty truck chassis 100. The drive system 140 and energy storage module 130 generate a large amount of heat during operation. If this heat cannot be dissipated in time, it will affect their performance and service life. The design of the cooling pipeline can deliver the cooling capacity generated by the cooling unit 123 to the drive system 140 and energy storage module 130, effectively dissipating heat and ensuring that the drive system 140 and energy storage module 130 operate stably in a suitable temperature environment. The control module 121, steering module 124, cooling unit 123, and braking module 122 are integrated and installed on the nacelle frame 120. Compared with the existing technology where each component is installed separately, the nacelle frame 120 can be installed as a whole during assembly, reducing the steps and time required for installing individual components, simplifying the assembly process, making the assembly process more convenient and efficient, and greatly improving the assembly efficiency of the new energy heavy truck chassis 100.

[0037] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the cabin frame 120 has a first mounting layer 125 and a second mounting layer 126, with the second mounting layer 126 located above the first mounting layer 125. The first mounting layer 125 is used to install a braking module 122 and a cooling unit 123, while the second mounting layer 126 is used to install a control module 121 and a steering module 124.

[0038] Specifically, the various modules on the naval frame 120 are rationally arranged through a layered configuration. This layered installation design makes full use of the space within the naval frame 120, resulting in a more compact and rational layout of the modules, avoiding spatial conflicts between modules, and improving the utilization rate of chassis space. By installing modules with different functions in layers, during installation and maintenance, personnel can quickly locate and operate the modules based on their layer, eliminating the need to search through a complex layout, greatly improving the convenience and efficiency of installation and maintenance.

[0039] Cooling unit 123 is an integrated cooling unit that cools the motor and its accessories, as well as the battery and provides comprehensive thermal management for the cab air conditioning. This reduces space requirements while also improving energy efficiency.

[0040] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the second mounting layer 126 also houses a low-voltage battery 127, which provides power to the vehicle's electrical equipment.

[0041] Specifically, the low-voltage battery 127 is connected to various electrical devices in the vehicle through a specific circuit, providing them with stable power and ensuring the normal operation of electrical equipment such as vehicle lights, dashboard, and on-board electronic devices. At the same time, installing the low-voltage battery 127 on the second mounting layer 126 facilitates its wiring connections and management.

[0042] In one possible embodiment of this application, such as Figure 1 and Figure 5 As shown, the chassis 110 is a rectangular frame composed of longitudinal beams and crossbeams 112. The crossbeams are connected to the longitudinal beams via crossbeam connectors 113. The engine compartment frame 120 is housed within the rectangular frame. The engine compartment frame 120's placement within the rectangular frame fully utilizes the space created by the chassis 110, resulting in a more organized and orderly layout of chassis components. This improves the utilization rate of chassis space, facilitates the installation and arrangement of other components, and contributes to enhancing the overall performance of the chassis.

[0043] Furthermore, the beam connector includes a transverse connecting part and a longitudinal connecting part, with the length of the longitudinal connecting part being greater than the length of the transverse connecting part to ensure a stable connection between the beam and the longitudinal beam.

[0044] In one possible embodiment of this application, such as Figure 1 and Figure 4 As shown, a wire harness bracket 111 is also provided on one side of the frame 110. The wire harness bracket 111 has a Z-shaped design, and the wire harness bracket 111 and the frame 110 together form a wire harness through hole.

[0045] Wiring harness through-holes are used for the arrangement and passage of vehicle wiring harnesses. During vehicle operation, wiring harnesses require fixed and reasonable routing channels to prevent damage from friction, compression, etc. The Z-shaped wiring harness bracket 111 design securely fixes the wiring harness, preventing it from shaking during vehicle operation. Furthermore, the presence of the wiring harness through-hole provides dedicated routing space for the wiring harness, resulting in a neater and more standardized layout, facilitating management and maintenance. Simultaneously, this design effectively protects the wiring harness, reducing interference from external factors and ensuring the stable operation of the vehicle's electrical system. It also solves the problem of fixing a large number of large-size high-voltage wiring harnesses within a limited space. It should be noted that the two connecting ends of the Z-shaped wiring harness bracket 111 do not exceed the width of the wing surface of the frame 110 to ensure the wiring harness within the through-hole is secure.

[0046] In one possible embodiment of this application, such as Figure 1 and Figure 3 As shown, a charging module is also provided on the battery frame 131, which charges the energy storage module 130.

[0047] Specifically, when the vehicle needs charging, an external charging device connects to the charging module. The charging module converts external electrical energy into suitable electrical energy for charging the energy storage module 130 and charges the energy storage module 130 according to a set charging program. This integrated design also facilitates the management and maintenance of the charging system, ensuring the safety and stability of the charging process.

[0048] In one possible embodiment of this application, such as Figure 1 and Figure 3 As shown, the control module 121 is an integrated control module that controls the steering module 124, cooling unit 123, braking module 122, energy storage module 130, and drive system 140. The integrated control module 121 can monitor the operating status and parameters of each component in real time and precisely control and adjust them according to the vehicle's driving needs and operating conditions. For example, when the vehicle accelerates, the integrated control module 121 can coordinate the drive system 140 to provide appropriate power output; when the vehicle brakes, it controls the braking module 122 to achieve safe and reliable braking; simultaneously, it can also control the cooling unit 123 to ensure that each heat-generating component is at a suitable operating temperature. This integrated control method reduces signal transmission links between components and improves the control response speed and accuracy.

[0049] In one possible embodiment of this application, such as Figure 1 and Figure 3As shown, the drive system 140 is an electric drive axle. The electric drive axle integrates drive components such as the motor, reducer, and differential, and is directly mounted on the vehicle's axle. The electric drive axle is connected to the frame 110 and wheels via a specific connection structure, enabling the direct transmission of power generated by the motor to the wheels, thus achieving the vehicle's driving function. Compared to traditional drive systems, the electric drive axle reduces transmission components and links, improving power transmission efficiency. Simultaneously, the integrated design of the electric drive axle makes the chassis structure more compact, occupies less space, and facilitates the layout and installation of other chassis components.

[0050] This application also discloses a vehicle, including the new energy heavy-duty truck chassis 100 from the foregoing embodiments. This vehicle has the same structure and beneficial effects as the new energy heavy-duty truck chassis 100 from the foregoing embodiments. The structure and beneficial effects of the new energy heavy-duty truck chassis 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A new energy heavy-duty truck chassis, characterized in that, The vehicle includes a chassis and a nacelle frame, an energy storage module, and a drive system mounted on the chassis. The nacelle frame, the energy storage module, and the drive system are arranged sequentially from the front to the rear of the vehicle. The energy storage module includes a battery frame mounted on the chassis and a first battery layer and a second battery layer located on the battery frame. The first battery layer is located above the second battery layer. The first battery layer includes multiple longitudinal battery blocks, and the second battery layer includes multiple transverse battery blocks. The longitudinal battery blocks extend from the front to the rear of the vehicle, and the first battery layer and the chassis are located on the same layer.

2. The new energy heavy-duty truck chassis according to claim 1, characterized in that, Both the horizontal and vertical battery blocks are configured as three blocks. The vertical battery block located in the middle of the first battery layer is located inside the vehicle frame, while the vertical battery blocks located on both sides of the first battery layer are located on both sides of the vehicle frame.

3. The new energy heavy-duty truck chassis according to claim 1, characterized in that, The nacelle frame is equipped with a control module, a steering module, a cooling unit, and a braking module. The control module is electrically connected to the drive system, the energy storage module, the steering module, the cooling unit, and the braking module. The cooling pipes of the cooling unit flow through the drive system and the energy storage module.

4. The new energy heavy truck chassis according to claim 3, characterized in that, The nacelle frame has a first mounting layer and a second mounting layer, with the second mounting layer located above the first mounting layer. The braking module and the cooling unit are mounted on the first mounting layer, and the control module and the steering module are mounted on the second mounting layer.

5. The new energy heavy truck chassis according to claim 4, characterized in that, The first mounting layer is also equipped with a low-voltage battery, which provides power to the vehicle's low-voltage electrical equipment.

6. The new energy heavy-duty truck chassis according to claim 1, characterized in that, The vehicle frame is a rectangular frame composed of longitudinal beams and crossbeams. The crossbeams are connected to the longitudinal beams through crossbeam connectors. The nacelle frame is located at the front end of the rectangular frame, and the longitudinal beams are sandwiched between two adjacent longitudinal battery blocks.

7. The new energy heavy-duty truck chassis according to claim 6, characterized in that, The beam connector includes a transverse connecting part and a longitudinal connecting part, wherein the length of the longitudinal connecting part is greater than the length of the transverse connecting part.

8. The new energy heavy truck chassis according to claim 1, characterized in that, A wiring harness bracket is also provided on one side of the vehicle frame. The wiring harness bracket has a Z-shaped design, and the wiring harness bracket and the vehicle frame together form a wiring harness through hole.

9. The new energy heavy truck chassis according to claim 3, characterized in that, The control module is an integrated control module, which controls the steering module, the cooling unit, the braking module, the energy storage module, and the drive system.

10. A vehicle, characterized in that, Includes the new energy heavy truck chassis as described in any one of claims 1-9.

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