Chassis and vehicle

Abstract

The chassis comprises a frame, a power battery and a water tank assembly, the frame comprises a front-section frame, a middle-section frame and a rear-section frame, and the power battery and the water tank assembly are both arranged on the middle-section frame, so that the space of the front-section frame and the space of the rear-section frame can be prevented from being occupied, and the structure of the chassis is more compact. Moreover, in the height direction of the chassis, the water tank assembly is at least located on one side of the power battery, so that under the condition that the capacity of the water tank assembly is fixed, at least part of the water tank assembly is arranged in the space of one side of the power battery in the height direction, and the space occupation of the water tank assembly in the length direction and / or the width direction of the chassis can be reduced; the size of the power battery in the length direction and / or the width direction of the chassis is increased, and then the storage capacity of the power battery is increased.

Description

Chassis and vehicles Technical Field

[0001] This application belongs to the field of vehicle technology, and in particular relates to a chassis and a vehicle. Background Technology

[0002] To address global warming and reduce carbon emissions, the adoption rate of new energy vehicles is continuously increasing. These vehicles use power batteries as their power source, and the battery's capacity affects the vehicle's driving range. Power batteries are typically mounted on the vehicle's chassis frame, which also houses other structures such as a radiator. Due to the placement of the power battery and radiator, the chassis's space utilization is relatively low, limiting the size of the power battery and thus affecting its capacity. Summary of the Invention

[0003] This application provides a chassis and vehicle that can increase the energy storage capacity of a power battery.

[0004] In a first aspect, embodiments of this application provide a chassis including a frame, a power battery, and a water tank assembly. The frame includes a front frame, a middle frame, and a rear frame. The power battery is disposed on the middle frame. The water tank assembly is disposed on the middle frame, and in the height direction of the chassis, the water tank assembly is located at least on one side of the power battery.

[0005] In some embodiments, the mid-section frame includes a first longitudinal beam and a second longitudinal beam spaced apart along the width direction of the chassis, and the power battery is connected to at least one of the first longitudinal beam and the second longitudinal beam.

[0006] In some embodiments, the mid-section frame further includes a third longitudinal beam and a first crossbeam. The two ends of the first crossbeam are connected to the first longitudinal beam and the second longitudinal beam, respectively. In the length direction of the chassis, the third longitudinal beam is located on the side of the first crossbeam closer to the front section frame and is connected to the first crossbeam. The power battery is connected to the third longitudinal beam.

[0007] In some embodiments, the mid-section frame further includes a second crossbeam, which is spaced apart from the first crossbeam on the side near the front section frame; the chassis also includes a domain controller, which is disposed on the side of the power battery near the front section frame in the longitudinal direction and located between the first and second crossbeams, and the domain controller is connected to a third longitudinal beam.

[0008] In some embodiments, the mid-frame includes a first crossbeam and a third crossbeam spaced apart along the length of the chassis, and the water tank assembly is connected to at least one of the first crossbeam and the third crossbeam.

[0009] In some embodiments, the mid-section frame further includes a first longitudinal beam and a second longitudinal beam spaced apart along the width direction of the chassis, and a first crossbeam located on the side of the third crossbeam closer to the front section frame; the first crossbeam includes a crossbeam body and two inclined beams, the two inclined beams being disposed on both sides of the crossbeam body along the width direction, one end of the inclined beam being connected to the crossbeam body, and the other end being connected to the first longitudinal beam or the second longitudinal beam, and the water tank assembly being connected to the inclined beams.

[0010] In some embodiments, the mid-frame also includes a fourth crossbeam disposed between the first and third crossbeams, and the water tank assembly is connected to the fourth crossbeam.

[0011] In some embodiments, the mid-frame includes a second crossbeam, a third crossbeam, a first longitudinal beam, and a second longitudinal beam. The second and third crossbeams are spaced apart along the length of the chassis, and the first and second longitudinal beams are spaced apart along the width of the chassis. The second, third, first, and second longitudinal beams define a receiving space, in which at least a portion of the water tank assembly and / or at least a portion of the power battery are located.

[0012] In some embodiments, the accommodating space includes a first region and a second region arranged sequentially along the length direction, the power battery is disposed in the first region, the water tank assembly is disposed in the first region and the second region, and the height of the water tank assembly in the second region is greater than the height of the water tank assembly in the first region.

[0013] Secondly, embodiments of this application provide a vehicle including the chassis of any of the above.

[0014] This application provides a chassis and vehicle. The chassis includes a frame, a power battery, and a radiator assembly. The frame includes a front frame, a mid-frame, and a rear frame. The power battery and radiator assembly are both located in the mid-frame, thus avoiding the use of space in the front and rear frames and making the chassis structure more compact. Furthermore, in the height direction of the chassis, the radiator assembly is located at least on one side of the power battery. Therefore, with a fixed capacity for the radiator assembly, utilizing the space on one side of the power battery in the height direction to arrange at least part of the radiator assembly helps reduce the space occupied by the radiator assembly in the length and / or width directions of the chassis, increasing the size of the power battery in the length and / or width directions of the chassis, thereby increasing the power battery's energy storage capacity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a top view of a chassis provided in some embodiments of this application;

[0017] Figure 2 is a side view of a chassis provided in some embodiments of this application;

[0018] Figure 3 is a top view of the chassis mid-section frame and power battery assembled according to some embodiments of this application;

[0019] Figure 4 is a top view of the chassis mid-section frame and water tank assembly provided in some embodiments of this application after assembly;

[0020] Figure 5 is an axonometric view of the chassis provided in some embodiments of this application;

[0021] Figure 6 is a top view of the front frame of the chassis provided in some embodiments of this application.

[0022] Explanation of icon numbers:

[0023] Chassis 1000; Chassis 10; Frame 100; Front Frame 110; Mid-Frame 120; First Longitudinal Beam 121; Second Longitudinal Beam 122; Third Longitudinal Beam 123; First Crossbeam 124; Crossbeam Body 1241; Diagonal Beam 1242; Second Crossbeam 125; Third Crossbeam 126; Fourth Crossbeam 127; Rear Frame 130; Power Battery 200; Water Tank Assembly 300; First Water Tank 310; Second Water Tank 320; Domain Controller 400; First Suspension Assembly 500a; Second Suspension Assembly 500b; Leaf Spring 510; Suspension 520; Upper Control Arm 521; Control Arm 522; Shock Absorber 523; Thermal Management Module 600; Range Extender Module 700; Accommodation Space K1; First Area K11; Second Area K12; Length Direction X; Width Direction Y; Height Direction Z. Detailed Implementation

[0024] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0026] Please refer to Figures 1 and 2. This application embodiment provides a chassis 1000, including a frame 100, a power battery 200, and a water tank assembly 300. The frame 100 includes a front frame 110, a middle frame 120, and a rear frame 130. The power battery 200 is disposed in the middle frame 120. The water tank assembly 300 is disposed in the middle frame 120. In the height direction Z of the chassis 1000, the water tank assembly 300 is located at least on one side of the power battery 200.

[0027] The chassis 1000 in this application embodiment can be a motorhome chassis 1000 or a chassis 1000 of other types of vehicles.

[0028] Specifically, the front frame 110, the middle frame 120 and the rear frame 130 are distributed along the length direction X of the chassis 1000. The front frame 110 is located near the front end of the chassis 1000, the rear frame 130 is located near the rear end of the chassis 1000, and the middle frame 120 is located between the front frame 110 and the rear frame 130, and connects the front frame 110 and the rear frame 130 respectively.

[0029] It is understandable that the power battery 200 and the water tank assembly 300 account for a large proportion of the overall weight of the chassis 10. Therefore, in this application, the power battery 200 and the water tank assembly 300 are located in the middle frame 120, which allows the center of gravity of the chassis 1000 to move closer to the center of the chassis 1000, improving the stability and safety of the chassis 1000. It should be noted that the water tank assembly 300 can be used to hold domestic water, which may include clean water to be used and / or wastewater that has already been used. In addition, the water tank assembly 300 can also be used to hold cooling water, which serves as a thermal management system for heat exchange with the power battery 200 and other structures.

[0030] In the height direction Z of the chassis 1000, the water tank assembly 300 being located at least on one side of the power battery 200 can mean that a portion of the water tank assembly 300 is located on one side of the power battery 200 along the height direction Z, and the remaining portion is located on the side of the power battery 200 along the length direction X and / or width direction Y of the chassis 1000. Alternatively, it can mean that the entire water tank assembly 300 is located on one side of the power battery 200 along the height direction Z. At least a portion of the water tank assembly 300 may be located above the power battery 200, that is, on the side of the power battery 200 along the height direction Z closer to the passenger compartment; or, at least a portion of the water tank assembly 300 may also be located below the power battery 200, that is, on the side of the power battery 200 along the height direction Z closer to the ground.

[0031] This application provides a chassis 1000 and a vehicle. The chassis 1000 includes a frame 100, a power battery 200, and a water tank assembly 300. The frame 100 includes a front frame 110, a middle frame 120, and a rear frame 130. The power battery 200 and the water tank assembly 300 are both located in the middle frame 120, thereby avoiding occupying the space of the front frame 110 and the rear frame 130, making the structure of the chassis 1000 more compact. Furthermore, in the height direction Z of the chassis 1000, the water tank assembly 300 is located at least on one side of the power battery 200. Therefore, given a fixed capacity of the water tank assembly 300, utilizing the space on one side of the power battery 200 in the height direction Z to arrange at least part of the water tank assembly 300 helps to reduce the space occupied by the water tank assembly 300 in the length direction X and / or width direction Y of the chassis 1000, increase the size of the power battery 200 in the length direction X and / or width direction Y of the chassis 1000, and thus increase the energy storage capacity of the power battery 200.

[0032] In this embodiment, there are various ways to increase the size of the power battery 200 in the length direction X and / or width direction Y of the chassis 1000. For example, the size of the power battery 200 in that direction can be increased by arranging more cells in the power battery 200 along the length direction X and / or width direction Y, or by arranging more power batteries 200 in the length direction X and / or width direction Y to increase the overall size of the power battery 200 in the corresponding direction. Compared to directly increasing the height of the power battery 200 to improve energy density, this embodiment does not require the development of a new type of power battery 200, thereby helping to save on the development cost of the power battery 200 and reduce the production cost of the chassis 1000 and the vehicle.

[0033] Furthermore, in this embodiment of the application, when the power battery 200 has a certain amount of stored power, by placing the water tank assembly 300 at least on one side of the power battery 200 along the height direction Z, it is also helpful to increase the capacity of the water tank assembly 300.

[0034] Referring to Figure 3, in some embodiments, the mid-section frame 120 includes a first longitudinal beam 121 and a second longitudinal beam 122 arranged at intervals along the width direction Y of the chassis 1000, and the power battery 200 is connected to at least one of the first longitudinal beam 121 and the second longitudinal beam 122.

[0035] The connection of the power battery 200 to at least one of the first longitudinal beam 121 and the second longitudinal beam 122 can mean that the power battery 200 is connected to either the first longitudinal beam 121 or the second longitudinal beam 122, or it can mean that the power battery 200 is connected to both the first longitudinal beam 121 and the second longitudinal beam 122 simultaneously. The first longitudinal beam 121 and the second longitudinal beam 122 are arranged at intervals in the width direction Y, and both can extend approximately along the length direction X. By connecting the power battery 200 to the first longitudinal beam 121 and / or the second longitudinal beam 122, the power battery 200 can have multiple connection points with the first longitudinal beam 121 and / or the second longitudinal beam 122 in the length direction X, thereby helping to improve the stability of the power battery 200.

[0036] Please continue to refer to Figure 3. In some embodiments, the mid-section frame 120 also includes a third longitudinal beam 123 and a first crossbeam 124. The two ends of the first crossbeam 124 are respectively connected to the first longitudinal beam 121 and the second longitudinal beam 122. In the length direction X of the chassis 1000, the third longitudinal beam 123 is located on the side of the first crossbeam 124 near the front section frame 110 and is connected to the first crossbeam 124. The power battery 200 is connected to the third longitudinal beam 123.

[0037] Specifically, the first crossbeam 124 extends generally along the width direction Y. One end of the first crossbeam 124 is connected to the first longitudinal beam 121, and the other end can be connected to the second longitudinal beam 122. The third longitudinal beam 123 is connected to the first crossbeam 124 and is located in the space on the side of the first crossbeam 124 near the front frame 110. The power battery 200 can be located on the side of the first crossbeam 124 near the front frame 110 to connect with the third longitudinal beam 123; alternatively, a portion of the power battery 200 can be located on the side of the first crossbeam 124 near the rear frame 130, and another portion can be located on the side of the first crossbeam 124 near the front frame 110 to connect with the third longitudinal beam 123.

[0038] In this embodiment, the power battery 200 is further secured by the third longitudinal beam 123, which helps to further improve the stability of the power battery 200.

[0039] Please continue referring to Figure 3. In some embodiments, the mid-section frame 120 further includes a second crossbeam 125, which is spaced apart from the first crossbeam 124 on the side near the front section frame 110. The chassis 1000 also includes a domain controller 400, which is disposed on the side of the power battery 200 near the front section frame 110 in the length direction X, and is located between the first crossbeam 124 and the second crossbeam 125. The domain controller 400 is connected to the third longitudinal beam 123.

[0040] The second crossbeam 125 can extend approximately along the width direction Y. The second crossbeam 125 can be located at the junction of the front frame 110 and the middle frame 120. In the length direction X, the side of the second crossbeam 125 away from the first crossbeam 124 is the front frame 110.

[0041] Domain controller 400 can be an all-in-one controller. Optionally, domain controller 400 may include at least one of an on-board charging unit, a battery disconnect unit, a power distribution unit, a vehicle control unit, and a DC-DC conversion unit. The on-board charging unit converts AC power to DC power to charge the power battery 200 and regulates voltage and current during charging. The battery disconnect unit controls the connection and disconnection between the power battery 200 and the vehicle's high-voltage system, performs fault protection, and pre-charging, thus providing high-voltage safety protection. The power distribution unit controls the power distribution of the power battery 200, distributing its high-voltage electricity to other modules. The vehicle control unit, as the central control unit of the vehicle, is the core of the entire control system. It is responsible for normal vehicle operation, regenerative braking, energy management of the vehicle's engine and power battery 200, network management, fault diagnosis and handling, and vehicle status monitoring, thereby ensuring the vehicle operates normally and stably with good power performance, high economy, and high reliability. A DC-DC converter can convert DC power of one voltage level to DC power of another voltage level. For example, a DC-DC converter can convert the high voltage output by the power battery 200 to a low voltage to power other low-voltage electrical devices.

[0042] In these embodiments, the domain controller 400 is arranged in the space between the first crossbeam 124 and the second crossbeam 125, and the domain controller 400 is further connected to the third longitudinal beam 123. This can improve the stability of the domain controller 400 and also facilitate the connection between the domain controller 400 and the power battery 200, so as to control the operation of the power battery 200 through the domain controller 400.

[0043] Optionally, there are multiple third longitudinal beams 123, and each third longitudinal beam 123 is arranged at intervals along the width direction Y between the first longitudinal beam 121 and the second longitudinal beam 122. Each third longitudinal beam 123 is connected to the first cross beam 124. The power battery 200 and the domain controller 400 are connected to each third longitudinal beam 123 to further improve the stability of the power battery 200 and the domain controller 400.

[0044] Referring to Figure 4, in some embodiments, the mid-section frame 120 includes a first crossbeam 124 and a third crossbeam 126 arranged at intervals along the length direction X of the chassis 1000. The water tank assembly 300 is connected to at least one of the first crossbeam 124 and the third crossbeam 126 to fix the water tank assembly 300 by means of at least one of the first crossbeam 124 and the third crossbeam 126, which helps to improve the stability of the water tank assembly 300.

[0045] The first crossbeam 124 and the third crossbeam 126 are arranged at intervals in the length direction X. The third crossbeam 126 is located on the side of the first crossbeam 124 near the rear frame 130. The third crossbeam 126 may be located at the junction of the middle frame 120 and the rear frame 130.

[0046] In this embodiment, the power battery 200 is connected to each longitudinal beam of the mid-section frame 120, and the water tank assembly 300 is connected to each cross beam of the mid-section frame 120. This helps to reduce the risk of mutual interference between the power battery 200 and the water tank assembly 300, and also helps to reduce the assembly difficulty of the power battery 200 and the water tank assembly 300.

[0047] Please continue to refer to Figure 4. In some embodiments, the mid-section frame 120 also includes a first longitudinal beam 121 and a second longitudinal beam 122 arranged at intervals along the width direction Y of the chassis 1000. The first crossbeam 124 is located on the side of the third crossbeam 126 near the front section frame 110. The first crossbeam 124 includes a crossbeam body 1241 and two inclined beams 1242. The two inclined beams 1242 are disposed on both sides of the crossbeam body 1241 along the width direction Y. One end of the inclined beam 1242 is connected to the crossbeam body 1241, and the other end is connected to the first longitudinal beam 121 or the second longitudinal beam 122. The water tank assembly 300 is connected to the inclined beam 1242.

[0048] Specifically, there are two inclined beams 1242, which are arranged on both sides of the crossbeam body 1241 along the width direction Y. They are respectively connected to the first longitudinal beam 121 and the second longitudinal beam 122 on both sides of the crossbeam body 1241. At this time, the crossbeam body 1241, the inclined beams 1242, and the corresponding first longitudinal beam 121 or second longitudinal beam 122 can form a triangular stable region. The inclined beams 1242 can support the crossbeam body 1241 and the corresponding first longitudinal beam 121 or second longitudinal beam 122, thereby improving the stability and impact resistance of the mid-section frame 120. In this embodiment, the water tank assembly 300 is connected to the inclined beams 1242, which helps to improve the stability of the water tank assembly 300.

[0049] Please refer to Figure 4. In some embodiments, the mid-section frame 120 further includes a fourth crossbeam 127, which is disposed between the first crossbeam 124 and the third crossbeam 126. The water tank assembly 300 is connected to the fourth crossbeam 127. The fourth crossbeam 127 can further fix the water tank assembly 300 and improve the stability of the water tank assembly 300.

[0050] Optionally, there can be multiple fourth crossbeams 127. Multiple fourth crossbeams 127 can be arranged at intervals along the length direction X between the first crossbeam 124 and the third crossbeam 126. Each fourth crossbeam 127 can be connected to the water tank assembly 300 to further improve the stability of the water tank assembly 300.

[0051] Referring to Figure 5, in some embodiments, the mid-section frame 120 includes a second crossbeam 125, a third crossbeam 126, a first longitudinal beam 121, and a second longitudinal beam 122. The second crossbeam 125 and the third crossbeam 126 are arranged at intervals along the length direction X of the chassis 1000, and the first longitudinal beam 121 and the second longitudinal beam 122 are arranged at intervals along the width direction Y of the chassis 1000. The second crossbeam 125, the third crossbeam 126, the first longitudinal beam 121, and the second longitudinal beam 122 define a receiving space K1, in which at least a portion of the water tank assembly 300 and / or at least a portion of the power battery 200 are located within the receiving space K1.

[0052] In these embodiments, the first longitudinal beam 121 and the second longitudinal beam 122 are arranged at intervals along the width direction Y, and the second crossbeam 125 and the third crossbeam 126 are arranged at intervals along the length direction X. The second crossbeam 125 and the third crossbeam 126 can be located between the first longitudinal beam 121 and the second longitudinal beam 122 and connected to the first longitudinal beam 121 and the second longitudinal beam 122. At this time, the first longitudinal beam 121, the second longitudinal beam 122, the second crossbeam 125 and the third crossbeam 126 can enclose a receiving space K1. At least a portion of the water tank assembly 300 and / or at least a portion of the power battery 200 are located in the receiving space K1. Compared with suspending the water tank assembly 300 and the power battery 200 under the mid-section frame 120, this helps to increase the ground clearance of the chassis 1000 and improve safety performance. Alternatively, with a fixed ground clearance for the chassis 1000, by placing at least a portion of the water tank assembly 300 and the power battery 200 within the accommodating space K1, it is helpful to lower the height of the chassis 1000, thereby increasing the height space of the passenger compartment above the mid-section frame 120 and thus improving vehicle comfort.

[0053] Optionally, in the height direction Z, at least a portion of the water tank assembly 300 may be located on the side of the power battery 200 away from the bottom surface, that is, at least a portion of the water tank assembly 300 may be disposed above the power battery 200, so as to facilitate the connection of the water tank assembly 300 with each crossbeam of the mid-section frame 120.

[0054] Optionally, the power battery 200 may be provided with a plurality of outwardly extending flanges, at least a portion of which is connected to the bottom of the first longitudinal beam 121 or the second longitudinal beam 122.

[0055] Please refer to Figure 5. In some embodiments, the accommodating space K1 includes a first region K11 and a second region K12 arranged sequentially along the length direction X. The power battery 200 is disposed in the first region K11, and the water tank assembly 300 is disposed in the first region K11 and the second region K12. The height of the water tank assembly 300 in the second region K12 is greater than the height of the water tank assembly 300 in the first region K11, so as to reasonably arrange the positions of the power battery 200 and the water tank assembly 300 in the middle frame 120, make full use of the space of the middle frame 120, and increase the capacity of the water tank assembly 300 while increasing the energy storage capacity of the power battery 200.

[0056] Specifically, the water tank assembly 300 in the first region K11 is located on one side of the power battery 200 along the height direction Z, and the water tank assembly 300 in the second region K12 is located on one side of the power battery 200 along the length direction X and / or the width direction Y. In this embodiment, by reasonably designing the dimensions of the first region K11 and the second region K12, the capacity of the water tank assembly 300 can be increased while increasing the energy storage capacity of the power battery 200.

[0057] It should be noted that the first region K11 and the second region K12 of this application can be arranged sequentially along the length direction X or along the width direction Y. When the first region K11 and the second region K12 are arranged along the length direction X, the first region K11 and the second region K12 can be arranged sequentially along the direction from the front frame 110 to the rear frame 130, in which case the first region K11 is located between the front frame 110 and the second region K12; or, the first region K11 and the second region K12 can also be arranged sequentially along the direction from the rear frame 130 to the front frame 110, in which case the first region K11 is located between the second region K12 and the rear frame 130.

[0058] As an example, the first region K11 is located between the second region K12 and the front frame 110. The first region K11 may include the region from the second crossbeam 125 to the fourth crossbeam 127 closest to the rear frame 130, and the second region K12 may include the aforementioned region from the fourth crossbeam 127 to the third crossbeam 126.

[0059] Please refer to Figure 4. In some embodiments, the water tank assembly 300 may include a first water tank 310 and a second water tank 320. The first water tank 310 can be used to hold clean water, and the second water tank 320 can be used to hold wastewater, so as to facilitate water use for passengers and at the same time prevent wastewater from flowing directly into the external environment and causing environmental pollution. The first water tank 310 and the second water tank 320 can be arranged along the width direction Y. Therefore, both the first water tank 310 and the second water tank 320 can be connected to the corresponding crossbeams of the middle frame 120, thereby improving the stability of the first water tank 310 and the second water tank 320.

[0060] Referring to Figures 1 and 6, in some optional embodiments, the chassis 1000 further includes a first suspension assembly 500a and a second suspension assembly 500b, at least one of the first suspension assembly 500a and the second suspension assembly 500b including a leaf spring 510 and two suspensions 520.

[0061] Either the first suspension assembly 500a or the second suspension assembly 500b can be configured for the front frame 110, and the other for the rear frame 130. At least one of the first suspension assembly 500a and the second suspension assembly 500b includes a leaf spring 510 and two suspensions 520. The two suspensions 520 can be spaced apart relative to each other along the width direction Y of the chassis 1000, and can be connected to the two front wheels or the two rear wheels of the chassis 1000 body, respectively. The leaf spring 510 can be connected between the two suspensions 520, providing elastic cushioning and shock absorption; it has a simple structure and high reliability. Furthermore, by incorporating the leaf spring 510 in the first suspension assembly 500a and / or the second suspension assembly 500b, compared to coil springs, torsion bar springs, air springs, etc., the height of the shock absorber tower in the suspension 520 can be reduced, allowing the shock absorber 523 to be mounted on the longitudinal beam support of the frame 100.

[0062] It should be noted that when the first suspension assembly 500a includes a leaf spring 510 and two suspensions 520, the second suspension assembly 500b may include any type of suspension 520 such as MacPherson strut suspension, multi-link suspension, or torsion beam suspension. This embodiment does not impose any limitation.

[0063] In some alternative embodiments, when the first suspension assembly 500a includes a leaf spring 510 and two suspensions 520, the second suspension assembly 500b may include a trailing arm suspension, thereby improving the comfort of the chassis 1000. Preferably, the second suspension assembly 500b may be configured corresponding to the rear frame 130, thereby improving vehicle comfort.

[0064] Please continue to refer to Figure 6. In some embodiments, the suspension 520 includes an upper control arm 521, a lower control arm 522, a shock absorber 523, a steering knuckle, and a wheel hub. The upper control arm 521 is arranged close to the wheel center of the chassis 1000 body along the height direction Z of the chassis 1000 to form a low-mounted double wishbone suspension, which can further reduce the height of the shock absorber tower and improve the handling, stability, and comfort of the wheel.

[0065] Please continue referring to Figure 1. In some optional embodiments, the chassis 1000 also includes a thermal management module 600, which is disposed on the front frame 110. The thermal management module 600 can be used to exchange heat with components such as the domain controller 400 and the power battery 200, thereby improving the safety performance of components such as the domain controller 400 and the power battery 200.

[0066] Referring to Figure 1, in some optional embodiments, the chassis 1000 also includes a range extender module 700, which is disposed on the rear frame 130. The range extender module 700 can work in conjunction with the power battery 200 to improve the vehicle's range.

[0067] Secondly, embodiments of this application provide a vehicle including the chassis 1000 of any of the above.

[0068] In some embodiments, the vehicle further includes an upper body that is detachably connected to the frame 100 of the chassis 1000 to facilitate decoupling of the upper body from the chassis 1000. For example, mounting points may be pre-drilled on the frame 100, and the frame 100 and the upper body may be connected at the mounting points using bolts or other components.

[0069] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A chassis, characterized in that, include: The vehicle frame includes a front frame, a middle frame, and a rear frame; a power battery is disposed on the middle frame; and a water tank assembly is disposed on the middle frame, wherein the water tank assembly is located at least on one side of the power battery in the height direction of the chassis.

2. The chassis according to claim 1, characterized in that, The mid-section frame includes a first longitudinal beam and a second longitudinal beam arranged at intervals along the width direction of the chassis, and the power battery is connected to at least one of the first longitudinal beam and the second longitudinal beam.

3. The chassis according to claim 2, characterized in that, The mid-section frame also includes a third longitudinal beam and a first crossbeam. The two ends of the first crossbeam are respectively connected to the first longitudinal beam and the second longitudinal beam. In the length direction of the chassis, the third longitudinal beam is located on the side of the first crossbeam closer to the front section frame and is connected to the first crossbeam. The power battery is connected to the third longitudinal beam.

4. The chassis according to claim 3, characterized in that, The mid-section frame also includes a second crossbeam, which is spaced apart from the first crossbeam on the side near the front section frame; the chassis also includes a domain controller, which is located on the side of the power battery near the front section frame in the length direction and between the first crossbeam and the second crossbeam, and the domain controller is connected to the third longitudinal beam.

5. The chassis according to claim 1, characterized in that, The mid-section frame includes a first crossbeam and a third crossbeam spaced apart along the length of the chassis, and the water tank assembly is connected to at least one of the first crossbeam and the third crossbeam.

6. The chassis according to claim 5, characterized in that, The mid-section frame also includes a first longitudinal beam and a second longitudinal beam arranged at intervals along the width direction of the chassis. The first crossbeam is located on the side of the third crossbeam closer to the front section frame. The first crossbeam includes a crossbeam body and two inclined beams. The two inclined beams are arranged on both sides of the crossbeam body along the width direction. One end of the inclined beam is connected to the crossbeam body, and the other end is connected to the first longitudinal beam or the second longitudinal beam. The water tank assembly is connected to the inclined beam.

7. The chassis according to claim 5, characterized in that, The mid-section frame also includes a fourth crossbeam, which is disposed between the first crossbeam and the third crossbeam, and the water tank assembly is connected to the fourth crossbeam.

8. The chassis according to any one of claims 1-7, characterized in that, The mid-section frame includes a second crossbeam, a third crossbeam, a first longitudinal beam, and a second longitudinal beam. The second crossbeam and the third crossbeam are spaced apart along the length direction of the chassis, and the first longitudinal beam and the second longitudinal beam are spaced apart along the width direction of the chassis. The second crossbeam, the third crossbeam, the first longitudinal beam, and the second longitudinal beam define an accommodating space, and at least a portion of the water tank assembly and / or at least a portion of the power battery is located within the accommodating space.

9. The chassis according to claim 8, characterized in that, The accommodating space includes a first region and a second region arranged sequentially along the length direction. The power battery is disposed in the first region, and the water tank assembly is disposed in the first region and the second region. The height of the water tank assembly in the second region is greater than the height of the water tank assembly in the first region.

10. A vehicle, characterized in that, Includes the chassis described in any one of claims 1-9.

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