Chassis structure and vehicle

Abstract

The application discloses a chassis structure and a vehicle, and belongs to the technical field of the chassis of a non-load-bearing vehicle body. The chassis structure is applied to a non-load-bearing vehicle body, and comprises a vehicle frame, an engine installed on the vehicle frame, and a battery arranged on one side of the engine along an X direction and centrally installed on the vehicle frame along a Y direction, wherein the bottom of the battery is provided with a through avoiding groove along the X direction, and an exhaust pipeline is connected with the engine and is arranged through the avoiding groove along the X direction. The battery is centrally arranged, so that the weight distribution of the chassis is more balanced, the vehicle controllability is improved, the exhaust pipeline is also centrally arranged on the lower side of the battery, the influence of the exhaust pipeline on the side pipeline arrangement of the battery is reduced, the outgoing line and waterway arrangement of the battery are facilitated, the overall space layout is optimized, and the exhaust pipeline is shielded, so that the aesthetic property is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of chassis of non-load-bearing vehicle body, and particularly relates to a chassis structure and a vehicle. BACKGROUND

[0002] The hybrid vehicle of non-load-bearing vehicle body includes an engine, a motor and a battery. Generally, the engine is arranged at the front side and the battery is arranged at the middle part. The exhaust pipe of the engine needs to extend from the front side to the rear side for exhaust. In order to avoid the battery, the exhaust pipe is arranged at one side of the battery, which affects the balance of the weight distribution of the whole chassis and has a great influence on the wire and waterway of the battery. SUMMARY

[0003] The present application aims to solve at least one of the technical problems in the prior art. To this end, the present application provides a chassis structure and a vehicle, which makes the weight distribution of the chassis more balanced, is beneficial to improve the vehicle handling, and reduces the influence of the exhaust pipe on the pipeline arrangement of the battery.

[0004] In a first aspect, the present application provides a chassis structure applied to a vehicle with a non-load-bearing vehicle body, which comprises:

[0005] a frame;

[0006] an engine mounted on the frame;

[0007] a battery arranged at one side of the engine along the X direction and mounted on the frame along the Y direction, the bottom of the battery being provided with an avoiding slot penetrating along the X direction;

[0008] an exhaust pipe connected with the engine, the exhaust pipe being arranged penetrating the avoiding slot along the X direction.

[0009] According to the chassis structure of the present application, the battery is arranged centrally, which makes the weight distribution of the chassis more balanced, is beneficial to improve the vehicle handling, and the exhaust pipe is also arranged centrally at the lower side of the battery, which reduces the influence of the exhaust pipe on the pipeline arrangement of the battery side, facilitates the wire and waterway arrangement of the battery, optimizes the overall space layout, and also plays a role in shielding the exhaust pipe, improving the appearance.

[0010] According to an embodiment of the present application, at least one end of the battery in the X direction is connected with a high-voltage wire harness; one end of the battery in the X direction is connected with a cooling pipe.

[0011] According to an embodiment of the present application, the high-voltage wire harness is located at at least one side of the battery in the Y direction.

[0012] According to an embodiment of the present application, the chassis structure further comprises two oil tanks, the two oil tanks being arranged at two sides of the battery along the Y direction respectively, and the two oil tanks being connected with the frame and the battery.

[0013] According to one embodiment of this application, the vehicle frame includes two longitudinal beams and two crossbeams. The two longitudinal beams extend along the X direction and are spaced apart along the Y direction. The two crossbeams are connected between the two longitudinal beams. The two crossbeams extend along the Y direction and are spaced apart along the X direction. The battery is fixedly connected to the two crossbeams at both ends in the X direction. The fuel tank is fixedly connected to the longitudinal beams and the battery at both sides in the Y direction.

[0014] According to one embodiment of this application, the battery has two extensions extending opposite to each other in the Y direction at its rear end in the X direction, and two fuel tanks are respectively disposed on the front side of the two extensions.

[0015] According to one embodiment of this application, the exhaust pipe is provided with an intermediate muffler located below the battery, and the clearance groove includes a deep groove section for accommodating the intermediate muffler, wherein the projected area of ​​the deep groove section in the X direction is larger than the portion of the clearance groove excluding the deep groove section;

[0016] The intermediate muffler and fuel tank are offset in the X direction.

[0017] According to one embodiment of this application, the rear end of the battery is adapted to correspond to the rear seat of a vehicle, and a thickened portion extending in the Z direction is provided on the upper side of the rear end of the battery.

[0018] The bottom surfaces of the fuel tank and battery are flush; and / or,

[0019] The thickness of the fuel tank in the Z-direction is greater than the thickness of the battery in the Z-direction.

[0020] According to one embodiment of this application, one of the two fuel tanks is connected to a refueling pipe, and a connecting pipe is connected between the two fuel tanks, with the connecting pipe connected to the upper ends of the two fuel tanks.

[0021] Secondly, this application provides a vehicle including a chassis structure as described in any of the first aspects.

[0022] The beneficial effects of the vehicle provided in the second aspect of this application are the same as those of the chassis structure provided in the first aspect of this application, and will not be repeated here.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is one of the structural schematic diagrams of the chassis structure provided in the embodiments of this application;

[0026] Figure 2 This is a second schematic diagram of the chassis structure provided in the embodiments of this application;

[0027] Figure 3 This is one of the schematic diagrams of the assembly structure of the battery and fuel tank provided in the embodiments of this application;

[0028] Figure 4 This is the second schematic diagram of the assembly structure of the battery and fuel tank provided in the embodiments of this application.

[0029] Figure label:

[0030] 1. Chassis structure; 11. Frame; 111. Longitudinal beams; 112. Crossbeams; 12. Battery; 121. Clearance groove; 1211. Deep groove section; 122. Extension section; 123. Thickened section; 124. High-voltage wiring harness; 125. Cooling pipes; 14. Exhaust pipes; 15. Intermediate muffler; 16. Fuel tank; 161. Filling pipe; 162. Connecting pipe. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] Hybrid vehicles with a non-load-bearing body include an engine, an electric motor, and a battery. Typically, the chassis layout places the engine at the front and the battery in the middle. The engine's exhaust pipe needs to extend from the front to the rear to exhaust. To avoid the battery, the exhaust pipe is placed on one side of the battery, resulting in battery misalignment and affecting the overall weight distribution balance of the chassis.

[0033] Furthermore, because hybrid vehicles have many components with very small spacing between them, the space between the engine and the battery is relatively limited. The exhaust port of a mid-mounted engine is generally located in the middle, and even if the exhaust port is offset, it will be directly opposite the end face of the battery. Therefore, after the exhaust pipe is connected to the engine's exhaust port, it needs to bend along the Y direction and extend to the side of the battery. The high-voltage wiring harness and cooling water pipe of the battery are generally located on the end face of the battery. This results in the exhaust pipe having a great impact on the direction and layout of the battery wiring and water channels, making it inconvenient for the battery wiring layout and increasing the spacing between the battery and the engine, thus reducing space utilization.

[0034] Based on the above considerations, this application proposes a chassis structure and vehicle that makes the chassis weight distribution more balanced, which is beneficial to improving vehicle handling and reducing the impact of exhaust pipes on the arrangement of battery wiring.

[0035] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0036] The following is for reference. Figures 1-4 This application describes a chassis structure according to an embodiment of the present application. It is understood that the chassis structure of this application embodiment is applied to vehicles with a non-load-bearing body.

[0037] Please see Figure 1 and Figure 2 The chassis structure 1 includes a frame 11, an engine, a battery 12, and an exhaust pipe 14.

[0038] The frame 11 serves as the supporting structure for the entire chassis, bearing the weight of the vehicle body and providing a mounting platform for the engine, battery 12, and exhaust pipe 14, ensuring the correct installation and proper functioning of these components. The engine, mounted on the frame 11, can directly output power to the vehicle or drive the electric motor to generate electricity. The battery 12 provides electrical energy to the electric motor in the hybrid vehicle, and the exhaust pipe 14 connects to the engine's exhaust port to expel the high-temperature exhaust gases produced by the engine.

[0039] The battery 12 is positioned on one side of the engine along the X direction and centrally mounted on the frame 11 along the Y direction. The bottom of the battery 12 is provided with a clearance groove 121 that runs through the X direction. The exhaust pipe 14 is connected to the engine and is positioned to pass through the clearance groove 121 along the X direction.

[0040] By centering the battery 12 along the Y-axis of the vehicle, offsetting the battery 12 is avoided, the weight distribution of the chassis is optimized, and the vehicle's handling is improved. By providing a clearance groove 121 running through the bottom of the battery 12 along the X-axis, space is provided for the exhaust pipe 14, preventing the exhaust pipe 14 from affecting the ground clearance of the chassis when it passes through the bottom of the battery 12, thus improving the vehicle's passability.

[0041] Furthermore, by setting the clearance groove 121, the exhaust pipe 14 can pass through the clearance groove 121 in the X direction, so that after the exhaust pipe 14 is connected to the engine, it can be arranged in the center. That is, the exhaust pipe 14 and the projection of the battery 12 in the Z direction overlap, and it extends directly in the X direction from the bottom of the battery 12 to the rear of the vehicle. The exhaust pipe 14 setting of this application greatly reduces the impact on the pipeline joints on the battery 12 and the overall pipeline layout, and solves the problem of the exhaust pipe 14 bending and blocking the end face of the battery 12 and conflicting with the pipeline layout of the battery 12.

[0042] Furthermore, the centrally located exhaust pipe 14 is hidden in the clearance groove 121 at the bottom of the battery 12, which also avoids the exhaust pipe 14 being exposed, thus improving the overall aesthetics compared to the exhaust pipe 14 being located on the side.

[0043] According to the chassis structure 1 of the present application embodiment, a brand-new chassis layout is provided. By centrally arranging the battery 12, the weight distribution of the chassis is more balanced, which is beneficial to improving vehicle handling. The exhaust pipe 14 is also centrally arranged on the lower side of the battery 12, which reduces the impact of the exhaust pipe 14 on the side pipeline arrangement of the battery 12, facilitates the wiring and water channel arrangement of the battery 12, optimizes the overall space layout, and also serves to cover the exhaust pipe 14, improving aesthetics.

[0044] Please see Figure 3 and Figure 4 According to some embodiments of this application, at least one end of the battery 12 in the X direction is connected to a high-voltage wiring harness 124; and one end of the battery 12 in the X direction is connected to a cooling pipe 125.

[0045] By placing the high-voltage wiring harness 124 at the X-direction end of the battery 12, it is convenient to connect the electrical equipment at the front and rear of the workshop to the battery 12, and the exhaust pipe 14 has minimal impact on the high-voltage wiring harness 124, making wiring easier.

[0046] In one example, the battery 12 is connected to a high-voltage wiring harness 124 at its rear end in the X direction, and to a cooling pipe 125 at its front end in the X direction.

[0047] According to some embodiments of this application, the high-voltage harness is located on at least one side of the battery 12 in the Y direction.

[0048] The exhaust pipe 14 can be centrally arranged along the Y direction of the frame 11. The connection position of the high-voltage wiring harness 124 and the battery 12 can be set on at least one side of the battery 12 in the Y direction to separate it from the exhaust pipe 14, so as to avoid the high temperature of the exhaust pipe 14 from affecting the protective layer of the high-voltage wiring harness 124.

[0049] In addition, the temperature of the exhaust pipe 14 is generally high, which can be insulated by the thermal management system built into the bottom of the battery 12.

[0050] In some embodiments, heat insulation material may be provided in the clearance groove 121 to isolate the heat of the exhaust pipe 14 and reduce the impact of the exhaust pipe 14 on the stable operation of the battery 12.

[0051] In some embodiments, the bottom of the battery 12 may be provided with a connection structure for supporting and fixing the exhaust pipe 14 and the intermediate muffler 15.

[0052] Please see Figure 1 and Figure 3According to some embodiments of this application, an intermediate muffler 15 is provided on the exhaust pipe 14 located below the battery 12. The clearance groove 121 may include a deep groove section 1211 for accommodating the intermediate muffler 15. The projected area of ​​the deep groove section 1211 in the X direction may be larger than the portion of the clearance groove 121 excluding the deep groove section 1211.

[0053] It is understandable that the radial dimension of the intermediate muffler 15 is generally larger than that of the exhaust pipe 14. By setting a deep groove section 1211 and making the projected area of ​​the deep groove section 1211 in the X direction larger than the part of the clearance groove 121 excluding the deep groove section 1211, that is, the deep groove section 1211 occupies more space in the Y and Z directions, which can better accommodate the intermediate muffler 15, which is larger in volume or has a complex shape. This allows the intermediate muffler 15 to be installed more closely below the battery 12. At least part of the intermediate muffler 15 can be accommodated in the deep groove section 1211, which reduces the space occupied by the intermediate muffler 15 at the bottom ground level while playing a role in muffler.

[0054] The portion of the clearance groove 121, excluding the deep groove section 1211, can be adapted to the size requirements of the exhaust pipe 14, thereby minimizing the encroachment of the clearance groove 121 on the internal space of the battery 12, optimizing the spatial layout while ensuring the capacity of the battery 12.

[0055] The shape of the deep groove section 1211 can be designed according to the cross-sectional shape of the intermediate muffler 15. There are no specific limitations on the shapes of either the intermediate muffler 15 or the deep groove section 1211; they can be designed according to actual needs. In one example, the intermediate muffler 15 can be cylindrical.

[0056] In some embodiments, the intermediate muffler 15 may be flat, and the two wide faces of the intermediate muffler 15 may be distributed along the Z-direction. This reduces the space occupied by the intermediate muffler 15 in the Z-direction and optimizes the spatial layout.

[0057] Please see Figures 1 to 4 According to some embodiments of this application, the chassis structure 1 also includes two fuel tanks 16, which can be respectively arranged on both sides of the battery 12 along the Y direction, and both fuel tanks 16 are connected to the frame 11 and the battery 12.

[0058] By placing two fuel tanks 16 on both sides of the battery 12, the weight distribution of the chassis is further optimized, improving vehicle handling and driving stability. Both fuel tanks 16 are connected to the engine and battery 12, enhancing the overall stability of the chassis assembly. Compared to related technologies where the battery 12 and fuel tanks 16 are arranged along the X-axis, this design further reduces the impact of the fuel tanks 16 on the connectors and pipeline layout on the battery 12 end face. Furthermore, the two fuel tanks 16 can form a main and auxiliary fuel tank configuration. By supplying fuel to the engine from both fuel tanks 16, stable fuel supply can be ensured when the vehicle tilts at a large angle on off-road terrain, as the two fuel tanks 16 are located on opposite sides of the vehicle in the Y-axis direction. Stable fuel supply can also be maintained even if a single fuel tank 16 is damaged, thus improving the off-road performance and stability of the off-road vehicle.

[0059] Furthermore, the fuel tanks 16 are located on both sides of the battery 12, which facilitates inspection and maintenance by maintenance personnel, and also makes refueling more flexible and convenient.

[0060] Please see Figure 1 and Figure 2 According to some embodiments of this application, the frame 11 includes two longitudinal beams 111 and two cross beams 112. The two longitudinal beams 111 extend along the X direction and are spaced apart along the Y direction. The two cross beams 112 are connected between the two longitudinal beams 111. The two cross beams 112 extend along the Y direction and are spaced apart along the X direction. The battery 12 is fixedly connected to the two cross beams 112 at both ends in the X direction. The fuel tank 16 is fixedly connected to the longitudinal beams 111 and the battery 12 at both sides in the Y direction.

[0061] By combining two longitudinal beams 111 and two transverse beams 112 to form a stable frame structure, the overall rigidity and stability of the chassis are enhanced. The battery 12 and fuel tank 16 are both installed within the frame structure formed by the longitudinal beams 111 and transverse beams 112 to improve the safety of the battery 12 and fuel tank 16.

[0062] By fixing the two ends of the battery 12 in the X direction to the two crossbeams 112 respectively, the stability of the battery 12 installation is ensured. Since the two fuel tanks 16 are installed on both sides of the battery 12 respectively, by fixing the two sides of the fuel tanks 16 to the battery 12 and the longitudinal beams 111 respectively, the installation stability of the fuel tanks 16 is ensured. It is understood that the side wall of the battery 12 can be provided with mounting points for the fuel tanks 16 to be fixedly connected.

[0063] Please see Figure 3 and Figure 4 According to some embodiments of this application, the battery 12 may have two extensions 122 extending opposite to each other in the Y direction at the rear end in the X direction, and the two oil tanks 16 may be respectively disposed on the front side of the two extensions 122.

[0064] It should be noted that a long and narrow shape for the fuel tank 16 would hinder the flow of fuel within it and impede versatility in design. Therefore, the length-to-width ratio of the fuel tank 16 should not be too large. The central space for mounting the battery 12 and the fuel tank 16 is relatively large, meaning the length of the fuel tank 16 does not reach the length of the battery 12. Furthermore, the length of the battery 12 is greater than the length of the fuel tank 16. This arrangement ensures sufficient total area and capacity of the battery 12, guaranteeing adequate output power.

[0065] Therefore, at the location where the fuel tank 16 is located, the width of the battery 12 is relatively narrow. An extension 122 extending along the Y direction is provided at the rear end of the battery 12 to increase the volume of the battery 12 and ensure that the overall capacity of the battery 12 meets the design requirements. This makes the overall projection of the battery 12 in the Z direction T-shaped. The extension 122 can extend to the longitudinal beam 111 and be fixedly connected to the longitudinal beam 111, thereby further improving the assembly stability of the battery 12.

[0066] By placing the fuel tank 16 on the front side of the extension 122, the front space of the chassis is fully utilized. Compared with the related art where the fuel tank 16 is placed on the rear side of the battery 12, the impact on the second row foot space and the lower equipment space is reduced, and the arrangement of the rear pipeline is facilitated.

[0067] Please see Figure 1 and Figure 3 According to some embodiments of this application, the intermediate muffler 15 and the fuel tank 16 can be offset in the X direction.

[0068] Understandably, because the two fuel tanks 16 are positioned along the Y-axis on both sides of the battery 12, the width and capacity of the corresponding positions of the battery 12 and fuel tanks 16 are relatively small. By offsetting the intermediate muffler 15 from the fuel tanks 16 in the X-axis, the arrangement of the intermediate muffler 15 can avoid significantly affecting the battery 12, thus optimizing the overall spatial layout. Specifically, the intermediate muffler 15 is positioned near the rear end of the battery 12.

[0069] Please see Figure 2 and Figure 4 According to some embodiments of this application, the rear end of the battery 12 is adapted to correspond to the rear seat of a vehicle, and a thickened portion 123 extending in the Z direction is provided on the upper side of the rear end of the battery 12.

[0070] By providing a thickened portion 123 at the rear end of the battery 12, the internal space of the vehicle can be utilized more efficiently. This reduces the encroachment of the battery 12 on the passenger compartment space and increases the battery 12's own capacity. Furthermore, by providing the thickened portion 123, the structural strength of the battery 12 itself can be improved, thereby enhancing the rigidity and torsional resistance of the entire chassis structure 1 and strengthening overall safety.

[0071] Please seeFigure 3 According to some embodiments of this application, the bottom surfaces of the fuel tank 16 and the battery 12 can be flush.

[0072] The fuel tank 16 and battery 12 are located on the same plane at the bottom in the Z-direction, which helps to lower the overall center of gravity of the vehicle and improve handling and driving stability. The smooth surface of the chassis bottom reduces air resistance, optimizes the vehicle's aerodynamic performance, and improves fuel efficiency. The flush bottom design provides uniform protection for the fuel tank 16 and battery 12, reducing direct impact on these critical components in the event of a bottom collision.

[0073] According to some embodiments of this application, the thickness of the fuel tank 16 in the Z direction can be greater than the thickness of the battery 12 in the Z direction.

[0074] The increased thickness of the fuel tank 16 allows it to hold more fuel, extending the vehicle's driving range. The extra thickness of the fuel tank 16 may also enhance its structural strength, reducing the risk of fuel leakage in a collision and improving vehicle safety. Furthermore, the fuel tank 16 helps protect the inner battery 12.

[0075] Please see Figure 3 and Figure 4 According to some embodiments of this application, one of the two fuel tanks 16 is connected to a refueling pipe 161, and a connecting pipe 162 is connected between the two fuel tanks 16, with the connecting pipe 162 connected to the upper end of the two fuel tanks 16.

[0076] The connecting pipe 162 ensures pressure balance between the two fuel tanks 16, allowing fuel to flow freely between them and achieving even fuel distribution. This not only helps maintain the vehicle's center of gravity balance but also optimizes fuel efficiency. Therefore, by connecting the refueling pipe 161 to one of the fuel tanks 16, the driver only needs to refuel at that tank, eliminating the need to refuel both tanks separately, simplifying the refueling process and improving convenience.

[0077] By placing the connecting pipe 162 at the upper end of the fuel tank 16, the sloshing and spillage of fuel during vehicle operation or collision can be reduced, the risk of fuel leakage can be lowered, and the fuel can be stably kept in the fixed fuel tank 16, thereby improving the vehicle's safety performance.

[0078] In some other embodiments, refueling pipes 161 may be provided on both fuel tanks 16.

[0079] This application also provides a vehicle, which includes a chassis structure 1 as described in any of the above technical solutions.

[0080] It should be noted that, since the vehicle in this application embodiment includes the chassis structure 1 of any of the above technical solutions, it has the technical features and beneficial effects of the chassis structure 1 of any of the above technical solutions, which will not be repeated here.

[0081] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0082] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0083] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0084] In the description of this application, "multiple" means two or more.

[0085] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0086] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0088] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A chassis structure for use in vehicles with a non-load-bearing body, characterized in that, The chassis structure includes: Frame; The engine is mounted on the chassis; The battery is positioned on one side of the engine along the X direction and centrally mounted on the frame along the Y direction. The bottom of the battery has a clearance groove that runs through the X direction. An exhaust pipe is connected to the engine and is configured to pass through the clearance groove along the X direction. The chassis structure also includes two fuel tanks, which are respectively arranged on both sides of the battery along the Y direction; The battery has two extensions extending in opposite directions in the Y direction at its rear end in the X direction, and the two fuel tanks are respectively located on the front side of the two extensions. The exhaust pipe is provided with an intermediate muffler located below the battery. The clearance groove includes a deep groove section for accommodating the intermediate muffler. The projected area of ​​the deep groove section in the X direction is larger than the portion of the clearance groove excluding the deep groove section. The intermediate muffler and the fuel tank are offset in the X direction.

2. The chassis structure according to claim 1, characterized in that, At least one end of the battery in the X direction is connected to a high-voltage wiring harness; one end of the battery in the X direction is connected to a cooling pipe.

3. The chassis structure according to claim 2, characterized in that, The high-voltage harness is located on at least one side of the battery in the Y direction.

4. The chassis structure according to claim 1 or 2, characterized in that, Both fuel tanks are connected to the vehicle frame and the battery.

5. The chassis structure according to claim 4, characterized in that, The frame includes two longitudinal beams and two transverse beams. The two longitudinal beams extend along the X direction and are spaced apart along the Y direction. The two transverse beams are connected between the two longitudinal beams. The two transverse beams extend along the Y direction and are spaced apart along the X direction. The battery is fixedly connected to the two transverse beams at both ends in the X direction. The fuel tank is fixedly connected to the longitudinal beams and the battery at both sides in the Y direction.

6. The chassis structure according to claim 4, characterized in that, The rear end of the battery is adapted to correspond to the rear seat of the vehicle, and the upper side of the rear end of the battery is provided with a thickened portion extending in the Z direction. The bottom surfaces of the fuel tank and the battery are flush; and / or, the thickness of the fuel tank in the Z direction is greater than the thickness of the battery in the Z direction.

7. The chassis structure according to claim 4, characterized in that, One of the two fuel tanks is connected to a refueling pipe, and a connecting pipe is connected between the two fuel tanks at the upper end of the two fuel tanks.

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

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