Vehicle frame and vehicle

Abstract

The embodiment of the utility model provides a vehicle frame and a vehicle, the vehicle frame is suitable for being arranged behind a battery pack in the length direction of the vehicle, the vehicle frame comprises a fuel tank mounting part, and the fuel tank mounting part is used for mounting a fuel tank and enabling the fuel tank and the battery pack to be arranged at an interval. The vehicle frame provided by the embodiment of the utility model is arranged behind the battery pack in the length direction of the vehicle, the fuel tank mounting part arranged on the vehicle frame can be used for mounting a fuel tank, and the fuel tank and the battery pack can be arranged at an interval, so that when the battery pack is mounted below a front floor of the vehicle, the battery pack can be mounted on the front floor of the vehicle; the fuel tank mounted on the fuel tank mounting part can avoid the space below the front floor of the vehicle, so that a larger layout space is provided for the battery pack.

Description

Technical Field

[0001] The present application belongs to the field of vehicle manufacturing technology, and specifically relates to a vehicle frame and a vehicle. Background Art

[0002] With the development of the new energy industry, consumers have increasingly higher requirements for the battery life of new energy vehicles. As one of the power sources of new energy vehicles, the volume of the battery pack is usually positively correlated with the vehicle's battery life.

[0003] For hybrid vehicles, the fuel tank and battery pack jointly provide power for the vehicle. The fuel tank and battery pack are usually arranged at the bottom of the vehicle, and the fuel tank occupies a large amount of bottom space, resulting in a certain degree of restriction on the layout of the battery pack. Utility Model Content

[0004] The present application aims to provide a vehicle frame and a vehicle to solve the problem that the layout of the existing vehicle fuel tank limits the layout space of the battery pack, which is not conducive to improving the vehicle's pure electric range.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application discloses a vehicle frame, which is adapted to be arranged behind a battery pack along the length direction of a vehicle, and includes:

[0007] The fuel tank mounting portion is used to mount a fuel tank and space the fuel tank from the battery pack.

[0008] Optionally, the vehicle frame further includes a main body portion, the main body portion is arranged close to the battery pack, and the fuel tank mounting portion is connected to a side of the main body portion away from the battery pack along the length direction of the vehicle.

[0009] Optionally, the vehicle frame further includes a first cross beam, which is disposed between the main body and the fuel tank mounting portion, and the main body and the fuel tank mounting portion are both connected to the first cross beam.

[0010] Optionally, the fuel tank mounting portion further includes a second cross beam, the main body portion further includes a third cross beam, and the second cross beam, the first cross beam and the third cross beam are spaced apart along the length direction of the vehicle.

[0011] Optionally, the fuel tank mounting portion further includes two first longitudinal beams spaced apart along the width direction of the vehicle, the two first longitudinal beams and the first cross beam and the second cross beam forming a first mounting frame, and the first mounting frame is used for mounting the fuel tank.

[0012] Optionally, the length of the second cross beam is greater than that of the first cross beam, and the first longitudinal beam extends inwardly near one end of the first cross beam.

[0013] Optionally, the vehicle frame further includes a fixing belt connected between the first crossbeam and the second crossbeam, and the fixing belt is used to fix the fuel tank.

[0014] Optionally, both the first crossbeam and the second crossbeam are provided with at least one first mounting portion, and two ends of the fixing belt are respectively connected to the first mounting portion on the first crossbeam and the first mounting portion on the second crossbeam.

[0015] Optionally, a mounting hole is provided on the first mounting portion, and the mounting hole is used to pass a first fastener through the mounting hole, and the fixing belt passes through the first fastener and is connected to the first crossbeam and the second crossbeam.

[0016] Optionally, the main body further includes two second longitudinal beams spaced apart along the width direction of the vehicle, the two second longitudinal beams and the first cross beam and the third cross beam together form a second mounting frame, and the second mounting frame is used to mount the first powertrain.

[0017] Optionally, the main body further includes a first reinforcement beam, which is connected between the two second longitudinal beams.

[0018] Optionally, the first cross beam is provided with a second reinforcement beam extending toward the first reinforcement beam, and the second reinforcement beam is connected to the first reinforcement beam.

[0019] Optionally, second mounting portions are provided on both ends of the first cross beam, the second cross beam, and / or the third cross beam along the width direction of the vehicle, and the second mounting portions are used to pass second fasteners to connect the frame to the rear floor of the vehicle.

[0020] Optionally, the main body and the fuel tank mounting portion are an integrally formed structure, or a separate structure.

[0021] In a second aspect, the present application further discloses a vehicle, comprising: the vehicle frame as described above.

[0022] Optionally, the vehicle further includes a rocker beam and a fuel pipe, wherein the rocker beam and the battery pack are spaced apart along the width direction of the vehicle, and the fuel pipe is at least partially disposed between the rocker beam and the battery pack.

[0023] Optionally, the vehicle further includes an exhaust pipe, which is arranged on a side of the battery pack away from the frame along the length direction of the vehicle.

[0024] The vehicle frame provided by the embodiment of the present application is arranged behind the battery pack along the length direction of the vehicle. The fuel tank mounting part provided on the vehicle frame can be used to mount the fuel tank and can make the fuel tank arranged at an interval from the battery pack. In this way, when the battery pack is mounted under the front floor of the vehicle, the fuel tank mounted on the fuel tank mounting part can avoid the space under the front floor of the vehicle, so as to provide a larger layout space for the battery pack, which is beneficial to improving the cruising range of the vehicle and enhancing the product competitiveness. In addition, for the same vehicle model with two power modes of hybrid and pure electric, only one set of vehicle body floor needs to be developed, which improves the universality of the vehicle body floor and reduces the product R & D cost.

[0025] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Brief Description of the Drawings

[0026] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is a partial structural schematic diagram of the vehicle in the upward view angle according to the embodiment of the present application;

[0028] Figure 2 is a structural schematic diagram of the vehicle frame according to the embodiment of the present application;

[0029] Figure 3 is a structural schematic diagram of the fuel tank layout structure according to the embodiment of the present application;

[0030] Figure 4 is a partial cross-sectional view of the vehicle along the width direction according to the embodiment of the present application.

[0031] Reference Signs: 10 - vehicle frame, 11 - fuel tank mounting part, 111 - second cross beam, 112 - first longitudinal beam, 113 - first mounting frame, 114 - fixing band, 12 - main body part, 121 - third cross beam, 122 - second longitudinal beam, 123 - second mounting frame, 124 - first reinforcing beam, 13 - first cross beam, 131 - second reinforcing beam, 14 - first mounting part, 15 - second mounting part, 21 - front floor, 22 - rear floor, 30 - battery pack, 40 - fuel tank, 50 - first power assembly, 51 - second power assembly, 52 - sill beam, 53 - fuel pipe, 54 - fuel pipe channel. Detailed Embodiments

[0032] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0033] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0035] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0036] As the user's demand for vehicle endurance has been upgraded, the pure - electric driving range of hybrid vehicles has been continuously improved, and the size of the battery pack for hybrid models has also been continuously increased. The fuel tank is arranged close to the middle of the vehicle body or under the rear - middle part of the floor, occupying a relatively large chassis space, restricting the layout of the battery pack, and resulting in the inability to maximize the battery pack of hybrid models. The embodiment of the present application provides a vehicle frame, which can be installed under the rear floor of a hybrid vehicle and provides an installation position for the fuel tank. Such a hybrid vehicle can use both the battery pack and fuel as power sources. In the embodiment of the present application, the battery pack can be arranged under the front floor of the vehicle, and the fuel tank is arranged under the rear floor of the vehicle, thus avoiding the space under the front floor of the vehicle, providing a larger layout space for the battery pack, improving the driving range of the vehicle in pure - electric mode, and enhancing the product competitiveness.

[0037] The following further elaborates on the vehicle frame provided by the embodiment of the present application in conjunction with the accompanying drawings and specific implementation manners.

[0038] As Figure 1 shown, the vehicle frame 10 disclosed in the present application is suitable for being arranged behind the battery pack along the length direction of the vehicle. As Figure 2 、 Figure 3 shown, the vehicle frame 10 may include: a fuel - tank mounting portion 11, and the fuel - tank mounting portion 11 is used for mounting the fuel tank 40 and making the fuel tank 40 arranged at an interval from the battery pack 30.

[0039] Specifically, the battery pack 30 is arranged under the front floor of the vehicle, and the vehicle frame 10 is a rear sub - frame and is arranged behind the battery pack 30, used for connecting the suspension and the vehicle body. In this layout structure, the fuel tank 40 is also located behind the battery pack 30. Both the fuel in the fuel tank 40 and the battery pack 30 can provide power for the vehicle. Compared with the prior - art layout method in which the fuel tank 40 and the battery pack 30 are arranged side by side along the width direction of the vehicle, the space under the front floor of the vehicle can be avoided, and the battery pack 30 can have a larger layout space. When the endurance demand increases, the size of the battery pack 30 can be made larger, thereby increasing the capacity of the battery pack 30 and improving the driving range of the vehicle. Further, since the fuel tank 40 is separately arranged behind the battery pack, it is not necessary to share the space in the width direction of the vehicle with the battery pack 30, and the size design of the fuel tank 40 is more flexible, improving the diversity of the endurance design of hybrid models.

[0040] Among them, the fuel in the fuel tank can be traditional gasoline and diesel, or new - type natural gas, propane, ethanol, hydrogen, etc. The battery pack 30 can be a lithium - ion battery pack 30, a nickel - metal hydride battery pack 30, a lead - acid battery pack 30, etc. The present application does not specifically limit the types of fuel and the battery pack 30.

[0041] It should be noted that in the embodiment of the present application, the length direction of the vehicle isFigures 1 to 4 In the direction indicated by arrow x, the width direction of the vehicle is Figures 1 to 4 In the direction indicated by arrow y, the front of the vehicle is the position where the vehicle head is located.

[0042] Referring to Figure 2 , a schematic structural diagram of the vehicle frame 10 according to an embodiment of the present application is shown. Referring to Figure 3 , a schematic structural diagram of the layout structure of the fuel tank 40 according to an embodiment of the present application is shown. As Figures 2 to 3 shown, in an embodiment of the present application, the vehicle frame 10 further includes a main body portion 12. Among them, the main body portion 12 is disposed close to the battery pack, and the fuel tank mounting portion 11 is connected to one side of the main body portion 12 away from the battery pack 30 along the length direction of the vehicle.

[0043] Specifically, the main body portion 12 and the fuel tank mounting portion 11 are connected along the length direction of the vehicle, and the main body portion 12 is disposed close to the battery pack 30, and the fuel tank mounting portion 11 is disposed away from the battery pack 30. When the main body portion is disposed close to the battery pack 30, the fuel tank mounting portion 11 and the battery pack 30 are spaced apart along the length direction of the vehicle.

[0044] In practical applications, the main body portion 12 of the vehicle frame 10 can be used to support the rear axle and suspension of the vehicle, and the fuel tank mounting portion 11 is used to mount the fuel tank 40. The arrangement of the fuel tank mounting portion 11 allows the fuel tank 40 to be disposed therein. Thus, when the vehicle is on a bumpy road condition or is impacted, the fuel tank mounting portion 11 outside the fuel tank 40 is impacted first, protecting the fuel tank 40 disposed therein, preventing the fuel tank 40 from being damaged due to a large impact force, ensuring the reliability of the fuel tank 40, and improving the safety performance of the whole vehicle. In practical applications, the vehicle frame 10 can be connected under the rear floor of the vehicle. Specifically, a plurality of second mounting portions 15 are further provided on the vehicle frame 10, and mounting bushings are provided on the second mounting portions 15 for connecting the vehicle frame 10 under the rear floor 22 of the vehicle.

[0045] In an embodiment of the present application, the fuel tank 40 layout structure further includes a first cross member 13. The first cross member 13 is disposed between the main body portion 12 and the fuel tank mounting portion 11, and both the main body portion 12 and the fuel tank mounting portion 11 are connected to the first cross member 13.

[0046] Specifically, the main body portion 12 and the fuel tank mounting portion 11 share the first cross member 13. In this way, the integrity of the main body portion 12 and the fuel tank mounting portion 11 is better, and good stability can be maintained even when the fuel tank 40 layout structure is in a vibration working condition.

[0047] Optionally, the main body portion 12 further includes a third cross beam 121, and the fuel tank mounting portion 11 further includes a second cross beam 111. The second cross beam 111, the first cross beam 13, and the third cross beam 121 are arranged at intervals along the length direction of the vehicle. Specifically, the third cross beam 121, the first cross beam 13, and the second cross beam 111 extend along the width direction of the vehicle.

[0048] Furthermore, the fuel tank mounting portion 11 further includes two first longitudinal beams 112 arranged at intervals along the width direction of the vehicle. The two first longitudinal beams 112 and the first cross beam 13, the second cross beam 111 enclose a first mounting frame 113. In practical applications, the first mounting frame 113 can be used to mount the fuel tank 40.

[0049] Specifically, the first mounting frame 113 can be an assembled and welded structure. The second cross beam 111 extends along the width direction of the vehicle and is arranged parallel to the first cross beam 13 and the third cross beam 121. The first longitudinal beam 112 is arranged generally along the length direction of the vehicle.

[0050] Furthermore, the length of the second cross beam 111 is greater than the length of the first cross beam 13. One end of the first longitudinal beam 112 close to the first cross beam 13 extends inward, so that the first mounting frame 113 formed by the two second longitudinal beams 122 and the first cross beam 13, the second cross beam 111 can have a shape that is narrower at the front and wider at the rear similar to the fuel tank, thereby improving the utilization rate of the space at the bottom of the vehicle and also enhancing the matching degree with the fuel tank.

[0051] Since the fuel tank mounting portion 11 is connected to the first cross beam 13, and the fuel tank 40 is located on the side of the main body portion 12 away from the battery pack 30, the fuel tank 40 is arranged behind the main body portion 12, and the position of the fuel tank 40 does not occupy the layout space of the second power assembly 51, improving the layout convenience of the hybrid vehicle model.

[0052] Optionally, the first mounting frame 113 is an integrally formed structure. Specifically, when the various structures of the first mounting frame 113 are made of steel or aluminum, the first mounting frame 113 can be integrally formed by die-casting process and welded to the main body portion 12 to become one body. It can be understood that the integrally formed first mounting frame 113 reduces the welding joints, enhances the overall structural strength of the first mounting frame 113. When the vehicle is impacted, the first mounting frame 113 is not easily broken under a certain impact force, effectively ensuring the protection effect on the fuel tank 40 and also extending the service life of the first mounting frame 113.

[0053] Furthermore, the fuel tank mounting portion 11 further includes a fixing strap 114, which is connected between the first cross beam 13 and the second cross beam 111. The fixing strap 114 can be used to fix the fuel tank 40 and support the fuel tank 40 from the bottom, improving the installation stability of the fuel tank 40 and ensuring the reliability of the fuel tank 40.

[0054] In practical applications, the fixing strap 114 can be a steel strap, which has good strength, wear resistance and corrosion resistance. Of course, other materials can also be used for the fixing strap 114, and the present application does not make specific limitations on this. A fixing strap gasket is also provided between the fixing strap 114 and the fuel tank 40. For example, the fixing strap gasket can be a rubber gasket, a silica gel gasket, a plastic gasket, etc., to reduce the friction between the fuel tank 40 and the fixing strap 114 and also play a certain buffering role.

[0055] Optionally, the number of the fixing straps 114 is multiple, and the multiple fixing straps 114 are arranged at intervals in the width direction of the vehicle. It should be noted that in order to enhance the fixing effect of the fuel tank 40, grooves are generally provided at the bottom of the fuel tank 40 for cooperation with the fixing straps 114. The number of the fixing straps 114 can match the number of the grooves of the fuel tank 40 or be more than the number of the grooves of the fuel tank 40, so as to better fix the fuel tank 40.

[0056] In an embodiment of the present application, at least one first mounting portion 14 is provided on both the first cross beam 13 and the second cross beam 111, and the two ends of the fixing strap 114 are respectively connected to the first mounting portion 14 on the first cross beam 13 and the first mounting portion 14 on the second cross beam 111.

[0057] Specifically, mounting holes are provided on the first mounting portion 14, and the mounting holes can be used for passing through first fasteners. In practical applications, the first fasteners can be fastening bolts adapted to the sizes of the mounting holes. The fixing strap 114 is connected to the first mounting portions 14 of the first cross beam 13 and the second cross beam 111 by passing multiple fastening bolts through the mounting holes of the first mounting portion 14, so as to be connected to the first mounting frame 113, and finally the fuel tank 40 is fixedly locked to the rear floor 22. The length design of the fixing strap 114 can make the fuel tank 40 abut against the rear floor 22 to fix the fuel tank 40 to the rear floor 22, thereby avoiding the fuel tank 40 from moving around during vehicle driving. For example, in the embodiment of the present application, two first mounting portions 14 are arranged at intervals on both the first cross beam 13 and the second cross beam 111, and the number of the fixing straps 114 is correspondingly set to two, so as to enhance the supporting effect and fixing effect on the fuel tank 40.

[0058] In practical applications, when installing the fuel tank 40, the fuel tank 40 can be first fixed within the first mounting frame 113 through the fixing strap 114, and then the entire vehicle frame 10 is fixedly connected to the lower side of the vehicle rear floor 22 by bolts, so as to achieve the purpose of locking the fuel tank 40. This fixing method is simple and convenient, and the first mounting frame 113 is located outside the fuel tank 40 and wraps around the periphery of the fuel tank 40. When the fuel tank 40 is installed in the accommodating space, the periphery of the fuel tank 40 can be protected by the first mounting frame 113, avoiding direct impact damage to the fuel tank 40 when the vehicle is collided, and improving the safety performance of the whole vehicle during collision.

[0059] Further, the main body portion 12 further includes two second longitudinal beams 122 arranged at intervals along the width direction of the vehicle. The two ends of each second longitudinal beam 122 are respectively connected to the ends of the first cross beam 13 and the third cross beam 121. The two second longitudinal beams 122, the first cross beam 13 and the third cross beam 121 are interconnected and enclose to form a second mounting frame 123. For four-wheel drive vehicles, as Figure 1 shown, the first power assembly 50 of the vehicle is located within the second mounting frame 123. The third cross beam 121, the second longitudinal beams 122 and the first cross beam 13 of the main body portion 12 can be welded and connected by welding process, or can be integrally formed by casting process, or hot pressing integral forming process. In practical applications, the processing process can be selected according to the specific material.

[0060] Exemplarily, the third cross beam 121, the second longitudinal beams 122 and the first cross beam 13 can be made of steel, thus having the characteristics of high strength, good wear resistance and good corrosion resistance; or can be made of aluminum alloy material, and the aluminum alloy subframe can have the characteristics of light weight and high strength; in addition, carbon fiber material can also be selected, which can be selected according to actual use requirements.

[0061] In addition, the main body portion 12 is further provided with a first reinforcing beam 124. The first reinforcing beam 124 can extend along the length direction or the width direction of the vehicle. When the first reinforcing beam 124 extends along the length direction of the vehicle, the two ends of the first reinforcing beam 124 are respectively connected to the third cross beam 121 and the first cross beam 13. When the first reinforcing beam 124 extends along the width direction of the vehicle, the two ends of the first reinforcing beam 124 can be respectively connected to the two second longitudinal beams 122. Exemplarily, in the embodiment of the present application, the first reinforcing beam 124 extends along the width direction of the vehicle and the two ends are respectively connected to the two second longitudinal beams 122. The setting of the first reinforcing beam 124 can strengthen the strength of the main body portion 12 and can play a certain supporting role for the first power assembly 50, thereby enhancing the structural strength and stability of the entire vehicle frame 10 and ensuring structural safety.

[0062] Furthermore, the first crossbeam 13 is provided with a second reinforcing beam 131 extending towards the first reinforcing beam 124. Since the second reinforcing beam 131 is connected to the first reinforcing beam 124, the structural strength of the second mounting frame 123 is improved, and such a setting increases the connection strength between the first mounting frame 113 and the second mounting frame 123. When the fuel tank mounting portion 11 is impacted, it can prevent the fuel tank 40 from being damaged by the impact, further ensuring the reliability of the fuel tank 40.

[0063] In an embodiment of the present application, second mounting portions 15 are provided at both ends of the first crossbeam 13, the third crossbeam 121, and / or the second crossbeam 111 along the width direction of the vehicle. Exemplarily, the second mounting portions 15 can be provided at both ends of the first crossbeam 13 and the third crossbeam 121, or at both ends of the first crossbeam 13 and the second crossbeam 111, or at both ends of the third crossbeam 121 and the second crossbeam 111. Of course, second mounting portions 15 can also be provided at both ends of the first crossbeam 13, the third crossbeam 121, and the second crossbeam 111.

[0064] In practical applications, the second mounting portions 15 can be used for passing through second fasteners. There are also multiple second mounting portions 15 provided on the vehicle frame 10. The second mounting portions 15 are provided with mounting bushings for connecting the vehicle frame 10 to the vehicle rear floor 22. It can be understood that by providing the second mounting portions 15, the vehicle frame 10 can be connected to the vehicle rear floor 22 using second fasteners, thereby facilitating the disassembly and repair of the vehicle frame 10 and also facilitating the assembly of the vehicle frame 10 and the vehicle rear floor 22.

[0065] Optionally, one end of the first longitudinal beam 112 is fixedly connected to the first crossbeam 13, and the other end of the first longitudinal beam 112 is movably connected to the second crossbeam 111 for adjusting the volume of the accommodation space.

[0066] Since the volume of the vehicle fuel tank 40 affects the fuel endurance of the vehicle, therefore, setting the first longitudinal beam 112 to be movably connected to the second crossbeam 111 can select fuel tanks 40 of different sizes and volumes according to the design and use requirements of the vehicle. In addition, since the other end of the first longitudinal beam 112 is movably connected to the second crossbeam 111, after initially installing the fuel tank 40, the distance between the two first longitudinal beams 112 connected to the second crossbeam 111 can also be adjusted to further clamp the fuel tank 40, thereby further ensuring the fixing effect on the fuel tank 40 and preventing the fuel tank 40 from shaking during vehicle driving.

[0067] Optionally, the main body portion 12 and the fuel tank mounting portion 11 are of an integrally formed structure or a split structure.

[0068] In some alternative embodiments of the present application, the main body portion 12 of the vehicle frame 10 and the fuel tank mounting portion 11 can be integrally formed by die-casting process or by hot pressing, and then the entire vehicle frame 10 is connected to the rear floor 22. Moreover, setting the main body portion 12 and the fuel tank mounting portion 11 as an integrally formed structure avoids the welding points between the main body portion 12 and the fuel tank mounting portion 11, enhances the structural strength of the entire vehicle frame 10, and can ensure the reliability of the vehicle frame 10 and improve the safety performance of the whole vehicle when the vehicle is in bumpy road conditions or is impacted.

[0069] In addition, the main body portion 12 and the fuel tank mounting portion 11 can also be a split structure and welded together. It can be understood that when the main body portion 12 and the fuel tank mounting portion 11 are in a split structure, the individual structural dimensions are smaller, which is convenient for production and transportation. The present application does not make specific limitations on this.

[0070] In summary, in the fuel tank 40 layout structure provided by the embodiments of the present application, the vehicle frame 10 and the battery pack 30 are arranged at intervals along the length direction of the vehicle. Among them, the fuel tank 40 is also connected to the side of the vehicle frame 10 away from the battery pack 30 along the length direction of the vehicle. In this way, the battery pack 30 and the fuel tank 40 are respectively located on both sides of the vehicle frame 10 along the length direction of the vehicle. When the battery pack 30 is installed below the front floor 21 of the vehicle and the vehicle frame 10 is arranged below the rear floor 22 of the vehicle, the fuel tank 40 is located on the side of the vehicle frame 10 away from the battery pack 30, thus avoiding the space below the front floor 21 of the vehicle and providing a larger layout space for the battery pack 30, improving the cruising range of the vehicle in the pure electric mode and enhancing the product competitiveness; in addition, for the same vehicle model with both hybrid and pure electric power modes, only one set of vehicle body floor needs to be developed, reducing the product R & D cost and improving the universality of the vehicle body floor.

[0071] The present application also provides a vehicle, including: the vehicle frame 10 as described above.

[0072] Among them, the chassis is one of the main components of the vehicle, used to support and install the vehicle power assembly and to connect the suspension, transmission and other components. The above-mentioned vehicle frame 10 is an important part of the chassis. The chassis is also respectively connected to the front floor 21 and the rear floor 22 of the vehicle along the length direction of the vehicle. In the embodiments of the present application, the battery pack 30 is connected below the front floor 21 of the vehicle, the vehicle frame 10 is connected below the rear floor 22 of the vehicle, and the fuel tank 40 is also arranged below the rear floor 22 of the vehicle, that is, at the position of the original exhaust main muffler, and is connected to the side of the vehicle frame 10 away from the battery pack 30 along the length direction of the vehicle, that is: the battery pack 30 and the fuel tank 40 are respectively located in front of and behind the vehicle frame 10 along the length direction of the vehicle.

[0073] In this way, the fuel tank 40 arranged under the rear floor 22 of the vehicle avoids the space under the front floor 21 of the vehicle, thereby providing a larger and more flexible layout space for the battery pack 30, effectively maximizing the size of the battery pack 30 under the front floor 21 of the vehicle along the length and width directions of the vehicle, thereby improving the vehicle's range in pure electric mode and enhancing product competitiveness; in addition, for the same model with both hybrid and pure electric power modes, only one set of body floors needs to be developed, which reduces product R&D costs and improves the versatility of the body floors.

[0074] In one embodiment of the present application, the vehicle provided in the embodiment of the present application further includes a door sill beam 52 and a fuel pipe 53, wherein the vehicle is provided with a door sill beam 52 extending along the length direction of the vehicle on both sides along the width direction of the vehicle, and the main body of the fuel pipe 53 extends along the length direction of the vehicle.

[0075] Specifically, the vehicle's second powertrain 51 is positioned longitudinally in front of the battery pack 30, i.e., at the front of the vehicle. The second powertrain 51 includes an engine, a generator, a drive motor, a transmission, etc. With the main body of the fuel pipe 53 extending longitudinally along the vehicle, the front and rear ends of the fuel pipe 53 can be connected to the vehicle's engine and fuel tank 40, respectively, to deliver fuel from the fuel tank 40 to the engine.

[0076] Reference Figure 4 , shows a partial cross-sectional view of the vehicle along the width direction of the vehicle according to an embodiment of the present application, as shown in FIG. Figure 4 As shown, the battery pack 30 and the sill beam 52 are spaced apart along the width of the vehicle and located between the sill beams 52 on either side. A fuel pipe passage 54 is formed between the battery pack 30 and one of the sill beams 52, through which a fuel pipe 53 passes. At least a portion of the fuel pipe 53 extends along the length of the vehicle and is located within the fuel pipe passage 54. The battery pack 30 and the sill beam 52 protect the fuel pipe 53, eliminating the need for additional protective plates and reducing layout costs. Furthermore, because the fuel pipe 53 is concealed within the fuel pipe passage 54 between the battery pack 30 and the sill beam 52, the vehicle's appearance is enhanced.

[0077] In one embodiment of the present application, the vehicle also includes an exhaust line, located on the side of the battery pack along the length of the vehicle, away from the fuel tank arrangement. Specifically, the vehicle's entire exhaust system is located in front of the battery pack 30, and the exhaust line and exhaust muffler do not extend beneath the vehicle body. This allows the fuel tank 40 to be located where the vehicle's main exhaust muffler would normally be located. Compared to the prior art method where the exhaust system is located beneath the front floor 21 of the vehicle body and passes from the side of the hybrid battery pack 30 to the rear of the vehicle body, this frees up space for the hybrid battery pack.

[0078] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0079] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle frame, adapted to be arranged behind a battery pack along the length direction of the vehicle, characterized in that: include: a fuel tank mounting portion, the fuel tank mounting portion being used to mount a fuel tank and space the fuel tank from the battery pack; The fuel tank mounting portion includes a first cross beam, a second cross beam, and two first longitudinal beams spaced apart in the width direction of the vehicle. The two first longitudinal beams, the first cross beam, and the second cross beam together form a first mounting frame for mounting the fuel tank. One end of the first longitudinal beam is fixedly connected to the first transverse beam, and the other end of the first longitudinal beam is movably connected to the second transverse beam.

2. The frame according to claim 1, wherein: The vehicle frame further includes a main body portion, which is disposed close to the battery pack. The fuel tank mounting portion is connected to a side of the main body portion away from the battery pack along a length direction of the vehicle.

3. The frame according to claim 2, wherein: The first cross beam is disposed between the main body and the fuel tank mounting portion, and both the main body and the fuel tank mounting portion are connected to the first cross beam.

4. The frame according to claim 3, wherein: The main body further includes a third cross beam, and the second cross beam, the first cross beam, and the third cross beam are spaced apart along a length direction of the vehicle.

5. The frame according to claim 1, wherein: The second cross beam has a length greater than that of the first cross beam, and the first longitudinal beam extends inwardly near one end of the first cross beam.

6. The frame according to claim 1, wherein: The vehicle frame further includes a fixing belt connected between the first crossbeam and the second crossbeam, and the fixing belt is used to fix the fuel tank.

7. The frame according to claim 6, characterized in that The first crossbeam and the second crossbeam are each provided with at least one first mounting portion, and two ends of the fixing belt are respectively connected to the first mounting portion on the first crossbeam and the first mounting portion on the second crossbeam.

8. The vehicle frame according to claim 7, wherein: The first mounting portion is provided with a mounting hole for passing a first fastener through the mounting hole. The fixing belt passes through the mounting hole via the first fastener and is connected to the first crossbeam and the second crossbeam.

9. The vehicle frame according to claim 4, wherein: The main body also includes two second longitudinal beams spaced apart along the width direction of the vehicle. The two second longitudinal beams, the first cross beam and the third cross beam form a second mounting frame, and the second mounting frame is used to mount the first powertrain.

10. The vehicle frame according to claim 9, wherein: The main body further includes a first reinforcement beam connected between the two second longitudinal beams.

11. The vehicle frame according to claim 10, wherein: The first cross beam is provided with a second reinforcement beam extending toward the first reinforcement beam, and the second reinforcement beam is connected to the first reinforcement beam.

12. The frame according to any one of claims 4 and 9 to 11, characterized in that: The first cross beam, the second cross beam, and / or the third cross beam are provided with second mounting portions at both ends along the width direction of the vehicle, and the second mounting portions are used to pass second fasteners to connect the frame to the rear floor of the vehicle.

13. The vehicle frame according to claim 2, wherein: The main body and the fuel tank mounting portion are an integrally formed structure or a separate structure.

14. A vehicle, characterized in that: include: A frame as claimed in any one of claims 1 to 13.

15. The vehicle according to claim 14, characterized in that The vehicle further includes a rocker beam and a fuel pipe. The rocker beam and the battery pack are spaced apart in a width direction of the vehicle, and the fuel pipe is at least partially disposed between the rocker beam and the battery pack.

16. The vehicle according to claim 14, characterized in that The vehicle further includes an exhaust pipe, which is arranged on a side of the battery pack away from the vehicle frame along the length direction of the vehicle.

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