Vehicle frame structure and new energy vehicle

Abstract

This application relates to a multi-purpose vehicle frame structure and a new energy vehicle. The multi-purpose vehicle frame structure includes an outer frame assembly and a panel assembly. The outer frame assembly has a front compartment area, a middle compartment area, and a rear compartment area distributed sequentially along a predetermined length direction. The panel assembly covers the outer frame assembly. When the multi-purpose vehicle frame structure is used in a pure electric vehicle, a first battery pack is installed in the middle compartment area. When the multi-purpose vehicle frame structure is used in a range-extended hybrid vehicle, the middle compartment area includes a battery mounting area, an exhaust passage area, and a second mounting area. A fuel tank is installed in the second mounting area. The second battery pack is located in the battery mounting area. The two ends of the second battery pack are connected to the outer frame assembly and a spacer beam, respectively. One end of the exhaust pipe is connected to the engine, and the other end passes through the front compartment area, the exhaust passage area, the second mounting area, and the rear compartment area, extending to the rear end of the vehicle body. The multi-purpose vehicle frame structure and new energy vehicle provided by this application solve the problem of poor compatibility of existing vehicle frame structures.

Description

Technical Field

[0001] This application relates to the field of automotive frame structure technology, and in particular to a frame structure and a new energy vehicle. Background Technology

[0002] For new energy vehicles, the frame structure is the base of the car, mainly used to support and connect the battery pack, suspension, engine and other assemblies, so that the assemblies maintain a relatively correct position and bear various loads inside and outside the car.

[0003] Pure electric vehicles and range-extended vehicles differ significantly in their layout, especially in the size of their battery packs. Range-extended vehicles also have fuel tanks and exhaust systems compared to pure electric vehicles. Existing chassis structures have poor compatibility and often cannot meet the application requirements of both pure electric and range-extended vehicles simultaneously. Different chassis structures need to be designed for different models, which leads to higher development costs. Summary of the Invention

[0004] Therefore, it is necessary to provide a vehicle frame structure and a new energy vehicle to solve the problem of poor compatibility of existing vehicle frame structures.

[0005] This application provides a vehicle frame structure. The vehicle frame structure includes an outer frame assembly and a panel assembly. The length direction of the new energy vehicle body is defined as a preset length direction, and the width direction of the new energy vehicle body is defined as a preset width direction. The outer frame assembly has a front compartment area, a middle compartment area, and a rear compartment area distributed sequentially along the preset length direction. The panel assembly covers the end of the outer frame assembly near the passenger compartment. When the frame structure is used for a pure electric vehicle, the middle compartment area is used to install the first battery pack, and the two ends of the first battery pack are respectively connected to the outer frame assembly along a predetermined width direction. The rear compartment area is used to install the first motor. When the frame structure is used for a range-extended hybrid vehicle, the middle compartment area includes a first mounting area and a second mounting area distributed along a predetermined length direction. The first mounting area is close to the front compartment area. The frame structure also includes a spacer beam, which is located in the first mounting area and extends along a predetermined length direction to divide the first mounting area into a battery mounting area and an exhaust channel area. The end of the spacer beam close to the front compartment area is connected to the outer frame assembly, and the end of the spacer beam away from the front compartment area is connected to the panel assembly. The front compartment area is used to install the engine, the second mounting area is used to install the fuel tank, the battery mounting area is used for the second battery pack, and the two ends of the second battery pack are respectively connected to the outer frame assembly and the spacer beam along a predetermined width direction. The rear compartment area is used to install the second motor. One end of the exhaust pipe is connected to the engine, and the other end passes through the front compartment area, the exhaust channel area, the second mounting area, and the rear compartment area and extends to the rear end of the vehicle body.

[0006] In one embodiment, the panel assembly includes a front floor panel and a rear floor panel. The front floor panel covers the intermediate compartment area, and the rear floor panel covers the rear compartment area. The front floor panel is horizontally positioned, and the vertical height of the rear floor panel increases from the front compartment area to the rear compartment area. Furthermore, the front floor panel and the rear floor panel are smoothly connected. It is understood that this arrangement allows for more installation space below the rear floor panel for either the first or second motor.

[0007] In one embodiment, when the frame structure is used in a range-extended hybrid vehicle and is a six-seat vehicle, the panel assembly also includes a seat rail structure. The seat rail structure is mounted on the front floor panel near the passenger compartment, and is positioned opposite to a second mounting area. The second-row seats slide in contact with both the front and rear floor panels via the seat rail structure. This arrangement facilitates the second-row seats sliding back and forth with the front floor panel along a predetermined length via the seat rail structure. Furthermore, it avoids compressing the headroom for second-row occupants due to the presence of the seat rail structure.

[0008] In one embodiment, the rear floor panel has a first surface, a second surface, and a transition surface. The vertical height of the first surface is equal to that of the front floor panel, and the rear floor panel is smoothly connected to the front floor panel via the first surface. The second surface is located behind the first surface along a predetermined length direction, and the vertical height of the second surface is greater than that of the first surface. The transition surface connects the first and second surfaces. When the frame structure is used in a six-seat vehicle, the third-row seats are installed on the second surface, creating a legroom for passengers between the first surface and the transition surface. It is understood that this arrangement helps to increase the vertical height difference between the passenger's buttocks and feet, thereby preventing third-row passengers from having their legs cramped when sitting in the third-row seats.

[0009] In one embodiment, the front floor panel has a protrusion at one end near the rear compartment area, extending towards the passenger compartment. This protrusion is correspondingly positioned with a second mounting area for mounting a fuel tank. It is understood that this configuration allows for the installation of a larger fuel tank in the second mounting area when the vehicle frame structure is used for a range-extended hybrid vehicle, thereby improving the range of the range-extended hybrid vehicle.

[0010] In one embodiment, the protrusion includes a first protrusion and a second protrusion spaced apart along a predetermined width direction, with a central passage extending to the rear cabin area formed between the first protrusion and the second protrusion. It is understood that this arrangement provides a lower central passage between the first protrusion and the second protrusion, facilitating occupants' access to the third-row seats located in the rear.

[0011] In one embodiment, the exoskeleton assembly includes a front bulkhead frame, a sill beam frame, and a rear bulkhead frame connected in sequence. The front cabin area is located on the front bulkhead frame, the middle cabin area is located on the sill beam frame, and the rear cabin area is located on the rear bulkhead frame. The front floor panel is connected to the sill beam frame, and the rear floor panel is connected to the rear bulkhead frame. It is understood that with this configuration, the front bulkhead frame, sill beam frame, and rear bulkhead frame are connected to form the exoskeleton assembly.

[0012] In one embodiment, the rear frame includes an integrally formed first rear crossbeam, a first rear longitudinal beam, a second rear crossbeam, and a second rear longitudinal beam. These beams enclose a rear compartment area. The first rear crossbeam is positioned in front of the second rear longitudinal beam along a predetermined length. The heights of the first and second rear longitudinal beams increase from the front compartment area to the rear compartment area. This arrangement allows the rear frame to raise the rear floor panel.

[0013] In one embodiment, the interiors of the first rear crossbeam, the first rear longitudinal beam, the second rear crossbeam, and the second rear longitudinal beam are each formed with a U-shaped groove. Furthermore, each of the first rear crossbeam, the first rear longitudinal beam, the second rear crossbeam, and the second rear longitudinal beam has a flanged structure on its side near the intermediate compartment area, and the rear floor panel overlaps the flanged structure. It is understood that this arrangement helps reduce the overall weight of the rear frame and improves the strength of the connection between the rear floor panel and the rear frame.

[0014] In one embodiment, the panel assembly also includes a second-row seat mounting beam, which is mounted on the front floor panel near the passenger compartment. When the frame structure is used in a six-seat model, one end of the seat rail structure is connected to the second-row seat mounting beam, and the other end is connected to the rear frame. It is understood that this configuration provides mounting points for the seat rail structure with both the second-row seat mounting beam and the rear frame, thereby making the seat rail structure more securely installed.

[0015] In one embodiment, the rear floor panel includes a first reinforcing plate, a second reinforcing plate, and an intermediate plate connecting the first and second reinforcing plates. The first reinforcing plate covers and connects to the opening of the first rear longitudinal beam; the second reinforcing plate covers and connects to the opening of the second rear longitudinal beam. It is understood that this arrangement significantly improves the structural strength of both the first and second rear longitudinal beams.

[0016] This application also provides a new energy vehicle, which includes the frame structure described in any of the above embodiments.

[0017] Compared to existing technologies, the vehicle frame structure and new energy vehicle provided in this application enable the universality of the outer frame assembly for both pure electric and range-extended hybrid vehicles. Furthermore, by dividing the outer frame assembly into independent front, middle, and rear compartments, all three compartments can meet the installation requirements of components for both pure electric and range-extended hybrid vehicles. Specifically, for pure electric vehicles, since the middle compartment only houses the first battery pack, the first battery pack can be made relatively larger, thus improving the driving range of the pure electric vehicle. For range-extended hybrid vehicles, since both the fuel tank and the second battery pack are housed in the middle compartment, a relatively smaller second battery pack can be used. This allows for the provision of an exhaust channel area in the middle compartment, facilitating the guidance of exhaust gases generated by the engine in the front compartment to the rear of the vehicle, and also makes the bottom structure of the range-extended hybrid vehicle more compact. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A partial exploded view of the multi-path frame structure used in this application for a pure electric vehicle model;

[0020] Figure 2 The frame structure provided in this application is viewed from below when used in a range-extended hybrid vehicle. Figure 1 ;

[0021] Figure 3 The frame structure provided in this application is viewed from below when used in a range-extended hybrid vehicle. Figure 2 ;

[0022] Figure 4 Top view of the chassis structure provided in this application when used in a range-extended hybrid vehicle. Figure 1 ;

[0023] Figure 5 for Figure 4 An enlarged view at point A;

[0024] Figure 6 Top view of the chassis structure provided in this application when used in a range-extended hybrid vehicle. Figure 2 ;

[0025] Figure 7 A schematic diagram of the structure of the exoskeleton according to an embodiment of this application;

[0026] Figure 8This is a schematic diagram of the rear frame structure of an embodiment provided in this application.

[0027] Reference numerals: 100, Exterior frame assembly; 110, Front compartment area; 120, Intermediate compartment area; 121, First mounting area; 121a, Battery mounting area; 121b, Exhaust duct area; 122, Second mounting area; 123, Spacer beam; 130, Rear compartment area; 140, Front bulkhead frame; 141, First front longitudinal beam; 142, Second front longitudinal beam; 143, Intermediate crossbeam; 144, First transition module; 145, Second transition module; 150, Sill beam frame; 151, First sill beam; 152, Second sill beam; 160, Rear bulkhead frame; 161, First rear crossbeam; 162, First rear longitudinal beam; 163, Second rear crossbeam; 164, Second rear longitudinal beam; 200, Panel assembly; 211. Front floor panel; 211a. Protrusion; 211b. First protrusion; 211c. Second protrusion; 211d. Center channel; 212. First row seat mounting beam; 212a. First mounting beam; 212b. Second mounting beam; 213. Second row seat mounting beam; 221. Rear floor panel; 222. First surface; 223. Second surface; 224. Transition surface; 225. First reinforcing plate; 226. Second reinforcing plate; 227. Center plate; 470. First ramp; 480. Second ramp; 500. Third row seat mounting beam; 510. Third mounting beam; 520. Fourth mounting beam; 600. Seat slide rail structure; 610. First guide rail; 620. Second guide rail; 700. First battery pack; 800. Second battery pack; 910. Fuel tank; 920. Engine; 940. Second motor. Detailed Implementation

[0028] 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.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] For new energy vehicles, the frame structure is the base of the car, mainly used to support and connect the battery pack, suspension, engine and other assemblies, so that the assemblies maintain a relatively correct position and bear various loads inside and outside the car.

[0035] Pure electric vehicles and range-extended vehicles differ significantly in their layout, especially in the size of their battery packs. Range-extended vehicles also have additional features such as fuel tanks and exhaust systems compared to pure electric vehicles. Existing chassis structures have poor compatibility and often cannot simultaneously meet the application requirements of both pure electric and range-extended vehicles. Therefore, different chassis structures need to be designed for different models, resulting in higher development costs.

[0036] Please see Figures 1-6 To address the poor compatibility of existing new energy vehicle frame structures, this application provides a frame structure. The frame structure includes an outer frame assembly 100 and a panel assembly 200. The length direction of the new energy vehicle body is defined as a preset length direction, and the width direction of the new energy vehicle body is defined as a preset width direction. The outer frame assembly 100 has a front compartment area 110, a middle compartment area 120, and a rear compartment area 130 sequentially distributed along the preset length direction. The panel assembly 200 covers the end of the outer frame assembly 100 near the passenger compartment. When the frame structure is used in a pure electric vehicle, the middle compartment area 120 is used to install a first battery pack 700, and the two ends of the first battery pack 700 along the preset width direction are respectively connected to the outer frame assembly 100. The rear compartment area 130 is used to install a first motor. When the frame structure is used in a range-extended hybrid vehicle, the intermediate compartment area 120 includes a first mounting area 121 and a second mounting area 122 distributed along a predetermined length direction. The first mounting area 121 is close to the front compartment area 110. The frame structure also includes a spacer beam 123, which is disposed in the first mounting area 121 and extends along a predetermined length direction to divide the first mounting area 121 into a battery mounting area 121a and an exhaust channel area 121b. The end of the spacer beam 123 close to the front compartment area 110 is connected to the outer frame assembly 100, and the end of the spacer beam 123 away from the front compartment area 110 is connected to the panel assembly 200. The front compartment area 110 is used to install the engine 920, the second mounting area 122 is used to install the fuel tank 910, the battery mounting area 121a is used to install the second battery pack 800, and the second battery pack 800 is connected to the outer frame assembly 100 and the spacer beam 123 at both ends along the preset width direction, respectively. The rear compartment area 130 is used to install the second motor 940. One end of the exhaust pipe is connected to the engine 920, and the other end passes through the front compartment area 110, the exhaust passage area 121b, the second mounting area 122 and the rear compartment area 130 and extends to the rear end of the vehicle body.

[0037] In this way, the outer frame assembly 100 can be used interchangeably with both pure electric vehicles and range-extended hybrid vehicles. Furthermore, by dividing the outer frame assembly 100 into three independent areas—a front compartment area 110, a middle compartment area 120, and a rear compartment area 130—the installation requirements for components in both pure electric and range-extended hybrid vehicles can be met. Specifically, for pure electric vehicles, since the middle compartment area 120 is only used to house the first battery pack 700, the first battery pack 700 can be made relatively larger, thus improving the driving range of the pure electric vehicle. For range-extended hybrid vehicles, since both the fuel tank 910 and the second battery pack 800 are housed in the middle compartment area 120, a relatively smaller second battery pack 800 can be used. This allows for the provision of an exhaust passage area 121b in the middle compartment area 120, facilitating the guidance of exhaust gases generated by the engine 920 in the front compartment area 110 to the rear of the vehicle, and also makes the bottom structure of the range-extended hybrid vehicle more compact.

[0038] Furthermore, when the frame structure is used in a range-extended hybrid vehicle, the spacer beam 123 can provide a mounting point for the second battery pack 800 and also serve to separate the second battery pack 800 from the exhaust pipe. In addition, an aluminum foil heat insulation structure (not shown) is provided between the second battery pack 800 and the exhaust pipe. The aluminum foil heat insulation structure can reflect heat to form a barrier on the exhaust pipe and prevent heat from being transferred outward and affecting the second battery pack 800.

[0039] In one embodiment, such as Figure 1 As shown, the panel assembly 200 includes a front floor panel 211 and a rear floor panel 221. The front floor panel 211 covers the intermediate cabin area 120, and the rear floor panel 221 covers the rear cabin area 130. The front floor panel 211 is horizontally arranged, and the vertical height of the rear floor panel 221 increases along the direction from the front cabin area 110 to the rear cabin area 130. Furthermore, the front floor panel 211 and the rear floor panel 221 are smoothly connected.

[0040] Since the rear compartment area 130 is used to install the first motor or the second motor, and the rear floor panel 221 covers the rear compartment area 130, by setting the vertical height of the rear floor panel 221 to increase along the direction from the front compartment area 110 to the rear compartment area 130, that is, by raising the rear floor panel 221, it is beneficial to reserve more installation space for the first motor or the second motor under the rear floor panel 221.

[0041] In one embodiment, such as Figure 7As shown, the outer frame assembly 100 includes a front frame 140, a sill beam frame 150, and a rear frame 160 connected in sequence. The front cabin area 110 is located on the front frame 140, the middle cabin area 120 is located on the sill beam frame 150, and the rear cabin area 130 is located on the rear frame 160. The front floor panel 211 is connected to the sill beam frame 150, and the rear floor panel 221 is connected to the rear frame 160.

[0042] Specifically, the sill beam frame 150 includes a first sill beam 151 and a second sill beam 152, which are spaced apart along a predetermined width direction. The front frame 140, the first sill beam 151, the rear frame 160, and the second sill beam 152 enclose and form a central compartment area 120. When the frame structure is used for a pure electric vehicle, such as... Figure 1 As shown, the first battery pack 700 is suspended from the outer frame assembly 100, and the two ends of the first battery pack 700 along the preset width direction are respectively connected to the first sill beam 151 and the second sill beam 152; when the frame structure is used for a range-extended hybrid vehicle, as... Figure 2 As shown, the second battery pack 800 is suspended from the outer frame assembly 100, and one end of the second battery pack 800 along the predetermined width direction is connected to the first sill beam 151, and the other end is connected to the spacer beam 123. In this way, the first battery pack 700 and the second battery pack 800 can use the same mounting position on the first sill beam 151.

[0043] In this embodiment, the intermediate compartment area 120 is formed by the front frame 140, the first sill beam 151, the rear frame 160, and the second sill beam 152, which helps to save materials and reduce the weight of the frame structure.

[0044] Furthermore, in one embodiment, as Figure 7 As shown, the front frame 140 includes a first front longitudinal beam 141, a second front longitudinal beam 142, a middle cross beam 143, a first transition module 144, and a second transition module 145. One end of the middle cross beam 143 is connected to the first sill beam 151 via the first transition module 144, and the other end of the middle cross beam 143 is connected to the second sill beam 152 via the second transition module 145. The first front longitudinal beam 141 is installed on the side of the first transition module 144 opposite to the first sill beam 151, and the second front longitudinal beam 142 is installed on the side of the second transition module 145 opposite to the second sill beam 152.

[0045] Both pure electric vehicles and range-extended hybrid vehicles require more space in the middle compartment area 120 than they do in the rear compartment area 130 and the front compartment area 110. Therefore, with the length of the outer frame assembly 100 remaining unchanged, the space in the middle compartment area 120 can be increased by setting the distance between the first front longitudinal beam 141 and the second front longitudinal beam 142 along the preset width direction to be smaller than the distance between the first sill beam 151 and the second sill beam 152 along the preset width direction. The first transition module 144 facilitates the transition between the first front longitudinal beam 141 and the first sill beam 151, and the second transition module 145 facilitates the connection between the second front longitudinal beam 142 and the second sill beam 152. The middle crossbeam 143 supports the first transition module 144 and the second transition module 145.

[0046] Specifically, the first transition module 144 is connected to the first sill beam 151 at one end and extends towards the first front longitudinal beam 141 in a constricted shape at the other end; the second transition module 145 is connected to the second sill beam 152 at one end and extends towards the second front longitudinal beam 142 in a constricted shape at the other end.

[0047] In one embodiment, such as Figure 7 As shown, the rear frame 160 includes an integrally formed first rear crossbeam 161, a first rear longitudinal beam 162, a second rear crossbeam 163, and a second rear longitudinal beam 164. The first rear crossbeam 161, the first rear longitudinal beam 162, the second rear crossbeam 163, and the second rear longitudinal beam 164 enclose a rear cabin area 130. The first rear crossbeam 161 is located in front of the second rear longitudinal beam 164 along a predetermined length direction. Along the direction from the front cabin area 110 to the rear cabin area 130, the height of the first rear longitudinal beam 162 and the height of the second rear longitudinal beam 164 increase respectively.

[0048] As can be seen from the fact that the rear compartment area 130 is located on the rear bulkhead frame 160 and the rear floor panel 221 is covered on the rear compartment area 130, the rear bulkhead frame 160 is used to support the rear floor panel 221. By setting the height of the first rear longitudinal beam 162 and the height of the second rear longitudinal beam 164 to increase along the direction from the front compartment area 110 to the rear compartment area 130, the rear bulkhead frame 160 can raise the rear floor panel 221, thereby achieving an increasing vertical height of the rear floor panel 221 along the direction from the front compartment area 110 to the rear compartment area 130, further providing more installation space for the fuel tank 910 below the rear floor panel 221.

[0049] Furthermore, in one embodiment, as Figure 7 and Figure 8As shown, the interiors of the first rear crossbeam 161, the first rear longitudinal beam 162, the second rear crossbeam 163, and the second rear longitudinal beam 164 are respectively formed with "U"-shaped grooves, and the first rear crossbeam 161, the first rear longitudinal beam 162, the second rear crossbeam 163, and the second rear longitudinal beam 164 are respectively provided with flange structures on the side near the intermediate compartment area 120, and the rear floor panel 221 overlaps the flange structure.

[0050] By providing U-shaped grooves inside the first rear crossbeam 161, the first rear longitudinal beam 162, the second rear crossbeam 163, and the second rear longitudinal beam 164, the overall weight of the rear frame 160 is reduced. Furthermore, by providing flanged structures on the side of the first rear crossbeam 161, the first rear longitudinal beam 162, the second rear crossbeam 163, and the second rear longitudinal beam 164 near the intermediate compartment area 120, the connection area between the rear floor panel 221 and the rear frame 160 is increased, thereby improving the firmness of the connection between the rear floor panel 221 and the rear frame 160. Specifically, the rear floor panel 221 is spot-welded to the rear frame 160. Moreover, the adjacent ends of the front floor panel 211 and the rear floor panel 221 overlap and form a three-layer spot-welded structure with the outer frame assembly 100.

[0051] In one embodiment, such as Figure 4 and Figure 5 As shown, when the frame structure is used for a range-extended hybrid vehicle and is a six-seat vehicle, the panel assembly 200 also includes a seat rail structure 600. The seat rail structure 600 is installed on the side of the front floor panel 211 near the passenger compartment. The seat rail structure 600 is correspondingly arranged with the second mounting area 122, and the second row of seats slides with the front floor panel 211 through the seat rail structure 600.

[0052] It should be noted that "the seat slide rail structure 600 and the second mounting area 122 are arranged opposite each other" means that the seat slide rail structure 600 is located above the front floor panel 211 and the second mounting area 122 is located below the front floor panel 211, that is, the seat slide rail structure 600 is located directly above the fuel tank 910.

[0053] Since the front floor panel 211 is horizontally positioned, the seat slide rail structure 600 is installed above the front floor panel 211, which facilitates the second-row seats to slide back and forth with the front floor panel 211 along a preset length direction via the seat slide rail structure 600.

[0054] Typically, in range-extended hybrid vehicles, the panel above the fuel tank 910 is higher than other panels, and the seat rail structure also has a certain height. Therefore, if the seat rail structure is installed directly on the panel above the fuel tank 910 without changing the height of the passenger compartment, it will reduce the headroom for second-row passengers, thus affecting the riding experience. In this embodiment, by mounting the seat rail structure 600 on the horizontally positioned front floor panel 211, the reduction of headroom for second-row passengers due to the presence of the seat rail structure 600 can be avoided.

[0055] Furthermore, in one embodiment, as Figure 1 and Figure 4 As shown, the panel assembly 200 also includes a second-row seat mounting beam 213, which is mounted on the front floor panel 211 on the side near the passenger compartment. When the frame structure is used for a six-seat model, one end of the seat rail structure 600 is connected to the second-row seat mounting beam 213, and the other end is connected to the rear frame 160.

[0056] The second-row seat mounting beam 213 and the rear frame 160 provide mounting points for the seat slide rail structure 600, thereby making the seat slide rail structure 600 more securely installed.

[0057] Specifically, such as Figure 5 As shown, the seat slide rail structure 600 has a set of guide rails spaced apart along a preset width direction. One guide rail is a first guide rail 610, and the other is a second guide rail 620. One end of the first guide rail 610 is connected to the second-row seat mounting beam 213, and the other end is connected to the second rear longitudinal beam 164 through the rear floor panel 221. One end of the second guide rail 620 is connected to the second-row seat mounting beam 213, and the other end is connected to the first rear cross beam 161 through the rear floor panel 221. There can be two seat slide rail structures 600, which are spaced apart along the width direction to connect two independent second-row seats respectively.

[0058] When the frame structure is used in a five-seat model, the second-row seats can be directly fixed to the second-row seat mounting beam 213.

[0059] In one embodiment, such as Figure 1 As shown, the rear floor panel 221 includes a first reinforcing plate 225, a second reinforcing plate 226, and an intermediate plate 227 connecting the first reinforcing plate 225 and the second reinforcing plate 226. The first reinforcing plate 225 covers and is connected to the opening of the first rear longitudinal beam 162; the second reinforcing plate 226 covers and is connected to the opening of the second rear longitudinal beam 164.

[0060] like Figure 5 and Figure 6As shown, when the seat rail structure 600 needs to be installed, the first guide rail 610 is connected at one end to the second row seat mounting beam 213 and at the other end to the second rear longitudinal beam 164 via the rear floor panel 221; the second guide rail 620 is connected at one end to the second row seat mounting beam 213 and at the other end to the first rear crossbeam 161 via the rear floor panel 221. That is, the seat rail structure 600 is relatively wide. Therefore, in order to avoid interference between the flange structure of the first rear longitudinal beam 162 or the flange structure of the second rear longitudinal beam 164 and the second guide rail 620 connected to the first rear crossbeam 161, while keeping the overall width of the rear frame 160 unchanged, it is necessary to move the flange structure of the first rear longitudinal beam 162 and the inner edge of the second rear longitudinal beam 164 outward. This will result in the width of the first rear longitudinal beam 162 and the width of the second rear longitudinal beam 164 being compressed. Furthermore, since the first rear longitudinal beam 162 and the second rear longitudinal beam 164 each have U-shaped grooves inside, it can be seen that both the first rear longitudinal beam 162 and the second rear longitudinal beam 164 are hollow beams. Therefore, compressing the width of the first rear longitudinal beam 162 and the second rear longitudinal beam 164 will significantly reduce their structural strength. In this embodiment, by connecting the first reinforcing plate 225 to the opening of the first rear longitudinal beam 162, the structural strength of the first rear longitudinal beam 162 can be significantly improved. By connecting the second reinforcing plate 226 to the opening of the second rear longitudinal beam 164, the structural strength of the second rear longitudinal beam 164 can be significantly improved.

[0061] Furthermore, both the first reinforcing plate 225 and the second reinforcing plate 226 are made of hot-formed steel. The first reinforcing plate 225 is welded to the first rear longitudinal beam 162; the second reinforcing plate 226 is welded to the second rear longitudinal beam 164.

[0062] In one embodiment, such as Figure 1 As shown, the rear floor panel 221 has a first surface 222, a second surface 223 and a transition surface 224. The vertical height of the first surface 222 is equal to the vertical height of the front floor panel 211, and the rear floor panel 221 is smoothly connected to the front floor panel 211 through the first surface 222. The second surface 223 is located behind the first surface 222 along a preset length direction, and the vertical height of the second surface 223 is greater than the vertical height of the first surface 222. The transition surface 224 transitionally connects the first surface 222 and the second surface 223. When the frame structure is used for a six-seat vehicle, the third row of seats is installed on the second surface 223, and a legroom for passengers is formed between the first surface 222 and the transition surface 224.

[0063] Since the vertical height of the first panel 222 is equal to the vertical height of the front floor panel 211, and the vertical height of the second panel 223 is greater than that of the first panel 222, and the third-row seats are installed on the second panel 223, when occupants sit in the third-row seats, their feet can be placed in a lower foot space. This helps to increase the vertical height difference between the occupants' buttocks and feet, thus preventing third-row occupants from having their legs cramped when sitting in the third-row seats.

[0064] Furthermore, in one embodiment, as Figure 8 As shown, a first ramp 470 and a second ramp 480 are formed on the rear frame 160. The first ramp 470 is located on the first surface 222 near the transition surface 224, and its slope is relatively small, approaching horizontal, to provide more legroom for third-row passengers. The second ramp 480 is located at the junction of the transition surface 224 and the second surface 223, allowing the first ramp 470 to smoothly transition to the rear floor panel 221.

[0065] In one embodiment, such as Figure 1 As shown, when the frame structure is used in a six-seat model, the panel assembly 200 also includes a third-row seat mounting beam 500, which is mounted on the second surface 223. Thus, the third-row seat mounting beam 500 provides mounting points for the third-row seats, thereby improving the stability of the third-row seat mounting.

[0066] Specifically, the third-row seat mounting beam 500 includes a third mounting beam 510 and a fourth mounting beam 520. The two ends of the third-row seats are respectively mounted and fixed to the third mounting beam 510 and the fourth mounting beam 520. The third mounting beam 510 has an approximately L-shaped cross-section and is installed at the connection between the transition surface 224 and the second surface 223; therefore, the third mounting beam 510 also serves to reinforce the rear panel structure. The fourth mounting beam 520 has an approximately "U"-shaped cross-section to increase the connection area between the fourth mounting beam 520 and the rear floor panel 221.

[0067] In one embodiment, such as Figure 1 As shown, the front floor panel 211 has a protrusion 211a at one end near the rear compartment area 130 that protrudes toward the crew compartment. The protrusion 211a is correspondingly provided with the second mounting area 122 for mounting the fuel tank 910.

[0068] By providing the protrusion 211a, a larger installation space can be created on the side of the front floor panel 211 facing away from the passenger compartment. Therefore, when the frame structure is used for a range-extended hybrid vehicle, a larger fuel tank 910 can be installed in the second installation area 122 to improve the range of the range-extended hybrid vehicle. Furthermore, this creates a more distinct boundary between the first installation area 121 and the second installation area 122.

[0069] Furthermore, the second-row seat mounting beam 213 is installed on the side of the protrusion 211a near the first mounting area 121. In this way, the second-row seat mounting beam 213 can also play a reinforcing role, which helps to improve the strength of the front floor panel 211 at the boundary line between the first mounting area 121 and the second mounting area 122.

[0070] Furthermore, in one embodiment, the protrusion 211a includes a first protrusion 211b and a second protrusion 211c arranged at intervals along a predetermined width direction, and an intermediate channel 211d extending to the rear cabin area 130 is formed between the first protrusion 211b and the second protrusion 211c.

[0071] That is, in this embodiment, the protrusion 211a is saddle-shaped with a lower middle and higher sides along the preset width direction. When the frame structure is used for a six-seat vehicle, a third row of seats also needs to be installed at the rear frame 160. Therefore, a lower middle passage 211d is reserved between the first protrusion 211b and the second protrusion 211c to facilitate passengers to go to the third row of seats in the rear along the middle passage 211d.

[0072] This application also provides a new energy vehicle, which includes the frame structure described in any of the above embodiments.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A vehicle frame structure, characterized in that, It includes an outer frame assembly (100) and a panel assembly (200). The length direction of the new energy vehicle body is defined as a preset length direction, and the width direction of the new energy vehicle body is defined as a preset width direction. The outer frame assembly (100) has a front compartment area (110), a middle compartment area (120) and a rear compartment area (130) distributed sequentially along the preset length direction. The panel assembly (200) is covered on the end of the outer frame assembly (100) near the passenger compartment. When the frame structure is used for a pure electric vehicle, the intermediate compartment area (120) is used to install the first battery pack (700), and the first battery pack (700) is connected to the outer frame assembly (100) at both ends along the preset width direction, and the rear compartment area (130) is used to install the first motor; When the frame structure is used in a range-extended hybrid vehicle, the intermediate compartment area (120) includes a first mounting area (121) and a second mounting area (122) distributed along the preset length direction. The first mounting area (121) is close to the front compartment area (110). The frame structure also includes a spacer beam (123), which is located in the first mounting area (121) and extends along the preset length direction to divide the first mounting area (121) into a battery mounting area (121a) and an exhaust channel area (121b). The end of the spacer beam (123) near the front compartment area (110) is connected to the outer frame assembly (100), and the spacer beam (123) is away from the front compartment area (110). One end of the cabin area (110) is connected to the panel assembly (200); the front cabin area (110) is used to install the engine (920), the second mounting area (122) is used to install the fuel tank (910), the battery mounting area (121a) is used to install the second battery pack (800), and the second battery pack (800) is connected to the outer frame assembly (100) and the spacer beam (123) at both ends along the preset width direction, the rear cabin area (130) is used to install the second motor, one end of the exhaust pipe is connected to the engine (920), and the other end passes through the front cabin area (110), the exhaust channel area (121b), the second mounting area (122) and the rear cabin area (130) and extends to the rear end of the vehicle body.

2. The frame structure according to claim 1, characterized in that, The panel assembly (200) includes a front floor panel (211) and a rear floor panel (221), the front floor panel (211) covering the intermediate cabin area (120) and the rear floor panel (221) covering the rear cabin area (130). The front floor panel (211) is horizontally arranged, and the vertical height of the rear floor panel (221) tends to increase along the direction from the front cabin area (110) to the rear cabin area (130). Furthermore, the front floor panel (211) and the rear floor panel (221) are smoothly connected.

3. The frame structure according to claim 2, characterized in that, When the frame structure is used for a range-extended hybrid vehicle and is a six-seat vehicle, the panel assembly (200) further includes a seat rail structure (600), which is mounted on the side of the front floor panel (211) near the passenger compartment. The seat rail structure (600) and the second mounting area (122) are arranged opposite to each other. The seat rail structure (600) is located above the front floor panel (211), the second mounting area (122) is located below the front floor panel (211), and the seat rail structure (600) is located directly above the fuel tank (910). The second-row seats slide in contact with the front floor panel (211) and the rear floor panel (221) via the seat rail structure (600).

4. The vehicle frame structure according to claim 3, characterized in that, The rear floor panel (221) has a first surface (222), a second surface (223) and a transition surface (224). The vertical height of the first surface (222) is equal to the vertical height of the front floor panel (211), and the rear floor panel (221) is smoothly connected to the front floor panel (211) through the first surface (222). The second surface (223) is located behind the first surface (222) along the preset length direction, and the vertical height of the second surface (223) is greater than the vertical height of the first surface (222). The transition surface (224) transitionally connects the first surface (222) and the second surface (223). When the frame structure is used in a six-seat vehicle, the third row of seats is mounted on the second surface (223), and a foot space for passengers is formed between the first surface (222) and the transition surface (224).

5. The frame structure according to claim 3, characterized in that, The front floor panel (211) has a protrusion (211a) at one end near the rear compartment area (130) that protrudes toward the crew compartment. The protrusion (211a) and the second mounting area (122) are correspondingly provided for mounting the fuel tank (910).

6. The frame structure according to claim 5, characterized in that, The protrusion (211a) includes a first protrusion (211b) and a second protrusion (211c) arranged at intervals along the preset width direction, and an intermediate channel (211d) extending to the rear compartment area (130) is formed between the first protrusion (211b) and the second protrusion (211c).

7. The frame structure according to claim 3, characterized in that, The outer frame assembly (100) includes a front frame (140), a door sill beam frame (150), and a rear frame (160) connected in sequence. The front cabin area (110) is located on the front bulkhead frame (140), the middle cabin area (120) is located on the sill beam frame (150), and the rear cabin area (130) is located on the rear bulkhead frame (160). The front floor panel (211) is connected to the sill beam frame (150), and the rear floor panel (221) is connected to the rear frame (160).

8. The frame structure according to claim 7, characterized in that, The rear frame (160) includes an integrally formed first rear crossbeam (161), a first rear longitudinal beam (162), a second rear crossbeam (163), and a second rear longitudinal beam (164). The first rear crossbeam (161), the first rear longitudinal beam (162), the second rear crossbeam (163), and the second rear longitudinal beam (164) enclose the rear compartment area (130), wherein the first rear crossbeam (161) is located in front of the second rear longitudinal beam (164) along the predetermined length direction. Along the direction from the front compartment area (110) to the rear compartment area (130), the height of the first rear longitudinal beam (162) and the height of the second rear longitudinal beam (164) both tend to increase.

9. The frame structure according to claim 8, characterized in that, The interiors of the first rear crossbeam (161), the first rear longitudinal beam (162), the second rear crossbeam (163), and the second rear longitudinal beam (164) are respectively formed with "U"-shaped grooves, and the first rear crossbeam (161), the first rear longitudinal beam (162), the second rear crossbeam (163), and the second rear longitudinal beam (164) are respectively provided with a flange structure on the side near the intermediate compartment area (120), and the rear floor panel (221) overlaps the flange structure.

10. The frame structure according to claim 8, characterized in that, The panel assembly (200) also includes a second-row seat mounting beam (213), which is mounted on the side of the front floor panel (211) near the passenger compartment; When the frame structure is used in a six-seat vehicle, one end of the seat rail structure (600) is connected to the second-row seat mounting beam (213), and the other end is connected to the rear frame (160).

11. The frame structure according to claim 8, characterized in that, The rear floor panel (221) includes a first reinforcing plate (225), a second reinforcing plate (226), and an intermediate plate (227) connecting the first reinforcing plate (225) and the second reinforcing plate (226). The first reinforcing plate (225) covers and is connected to the opening of the first rear longitudinal beam (162); the second reinforcing plate (226) covers and is connected to the opening of the second rear longitudinal beam (164).

12. A new energy vehicle, characterized in that, Includes the frame structure as described in any one of claims 1-11.

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