Front floor structure and vehicle

Abstract

The front floor structure comprises a first longitudinal beam, a second longitudinal beam, a central channel, a front wall plate lower cross beam and a front seat front cross beam, the first longitudinal beam, the second longitudinal beam and the central channel are connected between the front wall plate lower cross beam and the front seat front cross beam respectively, and the first longitudinal beam, the second longitudinal beam and the central channel are connected in the width direction of the vehicle. The first longitudinal beam and the second longitudinal beam are located on the two sides of the central channel respectively. The front wall plate lower cross beam is arranged at the front end of the front floor structure, the first longitudinal beam, the central channel and the second longitudinal beam form three stress transmission paths in the length direction of the vehicle in the width direction of the vehicle, and pressure borne by the front wall plate lower cross beam is dispersed through the three stress and transmitted to the rear end of the front floor structure. Therefore, the integrity of the passenger compartment is guaranteed, and the safety performance of passengers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle structures, in particular to a front floor structure and a vehicle. Background Art

[0002] The vehicle's front floor structure is an important component of the vehicle body, used to support the bottom structure of the vehicle body and provide a stable riding environment for the passengers in the vehicle.

[0003] The center tunnel plays a crucial role in the front floor structure of a vehicle. It's not only a key component connecting the front and rear floors, but also transfers loads, supports seat mounting beams, and routes wiring and piping. Existing front floor structures have long center tunnels that extend into the passenger compartment. This long center tunnel can cut into the passenger compartment, making it appear less coherent and complete. This can negatively impact the passenger experience and sense of security, compromising the integrity of the cabin. Therefore, overcoming these technical issues and deficiencies has become a key challenge. Utility Model Content

[0004] In order to solve the problem that the current central aisle is too long, which affects the riding experience and sense of security of the passengers and destroys the integrity of the passenger compartment, the utility model provides a front floor structure and a vehicle.

[0005] The technical solutions adopted by the present invention to solve the above technical problems are as follows:

[0006] On the one hand, the utility model provides a front floor structure, including a first longitudinal beam, a second longitudinal beam, a central channel, a lower cross beam of the front wall panel and a front cross beam of the front seat. The first longitudinal beam, the second longitudinal beam and the central channel are respectively connected between the lower cross beam of the front wall panel and the front cross beam of the front seat. Along the width direction of the vehicle, the first longitudinal beam and the second longitudinal beam are respectively located on both sides of the central channel.

[0007] Optionally, it also includes a first door sill, a second door sill, a front floor panel and a rear floor body. Along the length direction of the vehicle, the two ends of the front floor panel are respectively connected to the lower cross beam of the front wall panel and the rear floor body. The first door sill and the second door sill are located on both sides of the front floor panel, and a battery pack is installed at the bottom of the front floor panel.

[0008] Optionally, the battery pack includes a first battery pack, and the first battery pack is installed between the first door sill and the second door sill along the width direction of the vehicle.

[0009] Optionally, a first front floor side beam assembly is also included, which includes a first front floor side beam, a first connecting plate and a second connecting plate, the first end of the first front floor side beam is connected to the first mounting position on the lower cross beam of the front wall panel through the first end of the first connecting plate, and the second end of the first front floor side beam is connected to the second mounting position on the rear floor body through the second connecting plate.

[0010] Optionally, the battery pack includes a second battery pack, and the second battery pack is installed between the second door sill and the first front floor side beam along the width direction of the vehicle.

[0011] Optionally, a second front floor side beam assembly is also included, which includes a second front floor side beam, a third connecting plate and a fourth connecting plate, the first end of the second front floor side beam is connected to the third mounting position on the lower cross beam of the front wall panel through the first end of the third connecting plate, and the second end of the second front floor side beam is connected to the fourth mounting position on the rear floor body through the fourth connecting plate.

[0012] Optionally, the battery pack includes a third battery pack, and the third battery pack is installed between the first front floor side beam and the second front floor side beam along the width direction of the vehicle.

[0013] Optionally, the width of the first connecting plate is 50mm-75mm, and the width of the third connecting plate is 50mm-75mm.

[0014] Optionally, along the length direction of the vehicle, the distance between one end of the first battery pack, the second battery pack, and the third battery pack close to the front floor panel and the front floor panel is 5-20 mm respectively.

[0015] Optionally, an exhaust channel is further included, which is arranged between the first front floor side beam and the first door sill along the length direction of the vehicle, one end of the exhaust channel extends out of the lower surface of the lower cross beam of the front wall panel, and the other end of the exhaust channel extends out of the lower surface of the rear floor body.

[0016] Another aspect of the present invention provides a vehicle, comprising the front floor structure as described above.

[0017] The front floor structure provided by the present invention has a universal design area. Specifically, the lower cross beam of the front wall panel is arranged at the front end of the front floor structure. Along the width direction of the vehicle, the first longitudinal beam, the central channel, and the second longitudinal beam form three force transmission paths along the length direction of the vehicle. The three forces disperse the pressure on the lower cross beam of the front wall panel and transmit it to the rear end of the front floor structure, thereby ensuring the integrity of the passenger compartment and improving the safety performance of the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a schematic top view of a front floor structure provided by an embodiment of the present utility model;

[0020] Figure 2 It is a side view schematic diagram of the front floor structure provided by one embodiment of the present utility model;

[0021] Figure 3 This is a partial bottom view schematic diagram of a front floor structure applied to a pure electric vehicle provided by one embodiment of the present utility model;

[0022] Figure 4 This is a partial bottom view schematic diagram of a first embodiment of the front floor structure of an extended-range vehicle and a plug-in vehicle provided by the present utility model;

[0023] Figure 5 yes Figure 4 A partial enlarged schematic diagram;

[0024] Figure 6 This is a second partial bottom view schematic diagram of a front floor structure for a range-extended vehicle and a plug-in vehicle provided by an embodiment of the present invention;

[0025] Figure 7 This is a bottom view schematic diagram of a front floor structure applied to a pure electric vehicle provided by one embodiment of the present utility model;

[0026] Figure 8 This is a bottom view schematic diagram of a first front floor structure for a range-extended vehicle and a plug-in vehicle provided by an embodiment of the present invention;

[0027] Figure 9 This is a second bottom view schematic diagram of a front floor structure for a range-extended vehicle and a plug-in vehicle provided by an embodiment of the present invention;

[0028] The reference numerals in the drawings of the specification are as follows:

[0029] 11. First tower base; 12. Second tower base; 21. First door sill; 22. Second door sill; 3. Front floor panel; 4. Rear floor body; 41. Second mounting location; 42. Fourth mounting location; 5. Lower cross beam of front wall panel; 51. First mounting location; 52. Third mounting location; 61. First longitudinal beam; 62. Second longitudinal beam; 7. Central channel; 81. Front cross beam of front seat; 82. Rear cross beam of front seat; 9. First front floor side beam assembly; 91. First front floor side beam; 92. First connecting plate; 93. Second connecting plate; 10. Second front floor side beam assembly; 101. Second front floor side beam; 102. Third connecting plate; 103. Fourth connecting plate; 110. Exhaust duct; 121. First battery pack; 122. Second battery pack; 123. Third battery pack. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 1-3As shown, in one embodiment, the utility model provides a front floor structure on one hand, including a first longitudinal beam 61, a second longitudinal beam 62, a central channel 7, a front wall panel lower cross beam 5 and a front seat front cross beam 81, the first longitudinal beam 61, the second longitudinal beam 62 and the central channel 7 are respectively connected between the front wall panel lower cross beam 5 and the front seat front cross beam 81, and along the width direction of the vehicle, the first longitudinal beam 61 and the second longitudinal beam 62 are respectively located on both sides of the central channel 7.

[0034] Specifically, the first longitudinal beam 61 and the second longitudinal beam 62 are both sled boards, and the front floor structure also includes a front seat rear cross beam 82, which are arranged along the length direction of the vehicle; the front seat front cross beam 81 and the front seat rear cross beam 82 are both provided with seat mounting points, and the front seat front cross beam 81 and the front seat rear cross beam 82 fix the front seat on the front seat front cross beam 81 and the front seat rear cross beam 82 through the seat mounting points.

[0035] Specifically, the lower cross beam 5 of the front wall panel is arranged at the front end of the front floor structure. Along the width direction of the vehicle, the first longitudinal beam 61, the central channel 7, and the second longitudinal beam 62 form three force transmission paths along the length direction of the vehicle. The three forces disperse the pressure on the lower cross beam 5 of the front wall panel and transmit it to the rear end of the front floor structure, thereby ensuring the integrity of the passenger compartment and improving the safety performance of the passengers.

[0036] Furthermore, in one embodiment, the first longitudinal beam 61, the second longitudinal beam 62 and the central channel 7 are all made of steel or aluminum plates;

[0037] In a preferred embodiment, the first longitudinal beam 61, the second longitudinal beam 62 and the central channel 7 are all made of hot-formed steel plates. The first longitudinal beam 61, the second longitudinal beam 62 and the central channel 7 made of hot-formed steel plates have a bearing capacity increased by 30% with almost no significant change in their weight, thereby ensuring the survival space of the passenger compartment as much as possible.

[0038] like Figure 1-3 As shown, in one embodiment, it also includes a first door sill 21, a second door sill 22, a front floor panel 3 and a rear floor body 4. Along the length direction of the vehicle, the two ends of the front floor panel 3 are respectively connected to the lower cross beam 5 of the front wall panel and the rear floor body 4. The first door sill 21 and the second door sill 22 are located on both sides of the front floor panel 3, and a battery pack is installed at the bottom of the front floor panel 3.

[0039] Along the width direction of the vehicle, the first door sill 21, the first longitudinal beam 61, the central channel 7, the second longitudinal beam 62 and the second door sill 22 form five force transmission paths along the length direction of the vehicle. The five forces disperse the pressure on the front wall panel lower cross beam 5 and the front floor panel 3 and transmit them to the rear floor body 4, thereby ensuring the integrity of the passenger compartment and improving the safety performance of the passengers.

[0040] Specifically, battery pack mounting points are provided on the first door sill 21 and the second door sill 22, which facilitate connection with the battery pack. The connection method between the first door sill 21, the second door sill 22, the first front floor side beam assembly 9, the second front floor side beam assembly 10 and the battery pack includes welding or bolt connection.

[0041] like Figure 7 As shown, in one embodiment, the battery pack includes a first battery pack 121 . The first battery pack 121 is installed between the first door sill 21 and the second door sill 22 along the width direction of the vehicle.

[0042] Specifically, in a pure electric vehicle, battery pack installation sites are provided on the first door sill 21 and the second door sill 22. The battery pack installation points are provided to facilitate connection with the first battery pack 121. The connection methods of the first door sill 21 and the second door sill 22 to the first battery pack 121 include welding or bolting.

[0043] like Figure 4 As shown, in one embodiment, it also includes a first front floor side beam assembly 9, which includes a first front floor side beam 91, a first connecting plate 92 and a second connecting plate 93. The first end of the first front floor side beam 91 is connected to the first mounting position 51 on the lower cross beam 5 of the front wall panel through the first end of the first connecting plate 92, and the second end of the first front floor side beam 91 is connected to the second mounting position 41 on the rear floor body 4 through the second connecting plate 93.

[0044] Specifically, the first front floor side member assembly 9 can provide a battery pack mounting point for the battery pack of the extended-range vehicle and the plug-in vehicle.

[0045] The first end of the first front floor side beam 91 extends to the lower surface of the front wall panel lower cross beam 5, and is connected to the first mounting position 51 through one end of the first connecting plate 92; the second end of the first front floor side beam 91 extends to the lower surface of the rear floor body 4, and is connected to the second mounting position 41 through the second connecting plate 93.

[0046] like Figure 8 As shown, in one embodiment, the battery pack includes a second battery pack 122 . Along the width direction of the vehicle, the second battery pack 122 is installed between the second rocker 22 and the first front floor side member 91 .

[0047] Specifically, in plug-in and extended-range vehicles, the second battery pack 122 has a large capacity. Therefore, battery pack mounting points are provided on the first front floor side beam 91 and the second door sill 22. The battery pack mounting points are provided to facilitate connection with the second battery pack 122. The connection methods of the first front floor side beam 91 and the second door sill 22 to the second battery pack 122 include welding or bolting.

[0048] like Figure 5 As shown, in one embodiment, a second front floor side beam assembly 10 is further included, and the second front floor side beam assembly 10 includes a second front floor side beam 101, a third connecting plate 102 and a fourth connecting plate 103. The first end of the second front floor side beam 101 is connected to the third mounting position 52 on the lower cross beam 5 of the front wall panel through the first end of the third connecting plate 102, and the second end of the second front floor side beam 101 is connected to the fourth mounting position 42 on the rear floor body 4 through the fourth connecting plate 103.

[0049] Specifically, the second front floor side member assembly 10 can provide a battery pack mounting point for the battery pack of the extended-range vehicle and the plug-in vehicle.

[0050] The first end of the second front floor side beam 101 extends to the lower surface of the front wall panel lower cross beam 5, and is connected to one end of the third connecting plate 102 and the third mounting position 52; the second end of the second front floor side beam 101 extends to the lower surface of the rear floor body 4, and is connected to the fourth mounting position 42 through the fourth connecting plate 103.

[0051] like Figure 9 As shown, in one embodiment, the battery pack includes a third battery pack 123 , and along the vehicle width direction, the third battery pack 123 is installed between the first front floor side member 91 and the second front floor side member 101 .

[0052] Specifically, in plug-in and short-range extended-range vehicles, the third battery pack 123 has a relatively small capacity. Therefore, battery pack mounting points are provided on the first front floor side beam 91 and the second front floor side beam 101. The battery pack mounting points are provided to facilitate connection with the third battery pack 123. The connection methods of the first front floor side beam 91 and the second front floor side beam 101 and the third battery pack 123 include welding or bolting.

[0053] like Figure 4 and Figure 6 As shown, in one embodiment, the width of the first connecting plate 92 is 50 mm-75 mm, and the width of the third connecting plate 102 is 50 mm-75 mm.

[0054] Specifically, the width of the first connecting plate 92 is any point value among 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm or 75mm, or a range value consisting of any two point values; in a preferred embodiment, the width of the first connecting plate 92 is 60mm-65mm.

[0055] Specifically, the width of the third connecting plate 102 is any point value among 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm or 75mm, or a range value consisting of any two point values; in a preferred embodiment, the width of the third connecting plate 102 is 60mm-65mm.

[0056] Specifically, when the width of the first connecting plate 92 is 50mm-75mm, the cross-section of the longitudinal beam formed by the first front floor side beam 91, the first connecting plate 92 and the second connecting plate 93 in the length direction of the vehicle is reduced, thereby achieving local weight reduction and cost savings, and realizing a local lightweight design; the width of the third connecting plate 102 is 50mm-75mm, which reduces the cross-section of the longitudinal beam formed by the second front floor side beam 101, the third connecting plate 102 and the fourth connecting plate 103 in the length direction of the vehicle, thereby achieving local weight reduction and cost savings, and realizing a local lightweight design.

[0057] like Figure 6-9 As shown, in one embodiment, along the length direction of the vehicle, the distance between the end of the first battery pack 121, the second battery pack 122 and the third battery pack 123 close to the front floor panel 3 and the front floor panel 3 is 5-20 mm respectively.

[0058] In a preferred embodiment, along the length direction of the vehicle, the distance between the end of the first battery pack 121, the second battery pack 122 and the third battery pack 123 close to the front floor panel 3 and the front floor panel 3 is 10 mm, and different battery packs have the same input interface, achieving the effect of docking multiple battery packs with one vehicle body.

[0059] like Figure 1-3 and Figure 5 As shown, in one embodiment, it also includes a first tower base 11 and a second tower base 12, the first tower base 11 and the second tower base 12 are connected to one end of the lower cross beam 5 of the front wall panel away from the front cross beam 81 of the front seat, the first tower base 11, the first door sill 21 and the first front floor side beam assembly 9 are located on the same side of the vehicle, the second tower base 12, the second door sill 22 and the second front floor side beam assembly 10 are located on the other side of the vehicle, the other end of the first connecting plate 92 is connected to the transverse rib of the first tower base 11; the other end of the third connecting plate 102 is connected to the transverse rib of the second tower base 12.

[0060] The other end of the first connecting plate 92 is connected to the transverse rib of the first tower base 11, thereby reducing the cross-section of the longitudinal beam formed by the first front floor side beam 91, the first connecting plate 92 and the second connecting plate 93 in the vehicle length direction, thereby achieving a local lightweight design. The same effect is achieved in the front floor structure of extended-range vehicles and plug-in vehicles when large-capacity battery packs are present.

[0061] The other end of the third connecting plate 102 is connected to the transverse rib of the second tower base 12, thereby reducing the cross-section of the longitudinal beam formed by the second front floor side beam 101, the third connecting plate 102 and the fourth connecting plate 103 in the vehicle length direction, thereby achieving a local lightweight design. The same effect is achieved in the front floor structure of extended-range vehicles and plug-in vehicles when equipped with large-capacity battery packs.

[0062] like Figure 4 and Figure 6 As shown, in one embodiment, an exhaust duct 110 is further included. Along the length direction of the vehicle, the exhaust duct 110 is arranged between the first front floor side beam 91 and the first door sill 21. One end of the exhaust duct 110 extends from the lower surface of the front wall panel lower cross beam 5, and the other end of the exhaust duct 110 extends from the lower surface of the rear floor body 4.

[0063] Specifically, the exhaust duct 110 is arranged between the first front floor side beam 91 and the first door sill 21, so that there is a larger space between the first front floor side beam 91 and the second door sill 22, which is convenient for installing the battery pack; because the exhaust duct 110 is arranged between the first front floor side beam 91 and the first door sill 21, there is no contact between the battery pack and the exhaust duct 110, thereby preventing the hot air discharged from the exhaust duct 110 from damaging the battery pack.

[0064] In one embodiment, a heat insulation plate is disposed between the exhaust channel 110 and the second battery pack 122 or the third battery pack 123 .

[0065] Specifically, by adding a heat insulation plate, the thermal impact of the hot air generated by the exhaust channel 110 on the second battery pack 122 or the third battery pack 123 is reduced; thereby, the volume of the second battery pack 122 or the third battery pack 123 can be increased, the battery capacity of the second battery pack 122 or the third battery pack 123 can be increased, and the distance between the exhaust channel 110 and the second battery pack 122 or the third battery pack 123 can be shortened.

[0066] Another aspect of the present invention provides a vehicle, comprising the above-mentioned front floor structure.

[0067] The vehicle provided by this patent has a front floor structure included in this application, and the front floor structure includes a tower base 1, a front wall panel lower cross beam 5, a front floor panel 3 and a rear floor body 4 arranged in sequence along the length direction of the vehicle, a front seat front cross beam 81 and a front seat rear cross beam 82 arranged above the front floor panel 3, and a first door sill 21, a first longitudinal beam 61, a central channel 7, a second longitudinal beam 62 and a second door sill 22 arranged in sequence along the width direction of the vehicle.

[0068] Along the width direction of the vehicle, the first door sill 21, the first longitudinal beam 61, the central channel 7, the second longitudinal beam 62 and the second door sill 22 form five force transmission paths along the length direction of the vehicle. The five forces disperse the pressure on the front wall panel lower cross beam 5 and the front floor panel 3 and transmit them to the rear floor body 4, thereby ensuring the integrity of the passenger compartment and improving the safety performance of the passengers.

[0069] On this basis, by connecting one end of the first battery pack 121 to the second door sill 22 and the other end of the first battery pack to the first door sill 21 , the front floor structure of the pure electric vehicle can be obtained.

[0070] By providing a first front floor side beam assembly 9 on the lower surface of the front floor panel 3, it can be used to fix the second battery pack 122 with a larger capacity; and providing a second front floor side beam assembly 10 on the lower surface of the front floor panel 3, it can be used to fix the third battery pack 123 with a smaller capacity, thereby obtaining a front floor structure suitable for plug-in and extended-range vehicles.

[0071] The present application adds a first front floor side beam assembly 9, a second front floor side beam assembly 10 and an exhaust channel 110 to the front floor structure, so as to be adaptable to extended-range vehicles, plug-in vehicles and pure electric vehicles. The front floor structure of the present application is highly adaptable, which can shorten the development cycle and save development human resources. The sharing of parts reduces development costs and shortens the product development cycle.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A front floor structure, characterized by: It includes a first longitudinal beam, a second longitudinal beam, a central channel, a lower cross beam of the front wall panel and a front cross beam of the front seat. The first longitudinal beam, the second longitudinal beam and the central channel are respectively connected between the lower cross beam of the front wall panel and the front cross beam of the front seat. Along the width direction of the vehicle, the first longitudinal beam and the second longitudinal beam are respectively located on both sides of the central channel.

2. The front floor structure according to claim 1, characterized in that: It also includes a first door sill, a second door sill, a front floor panel and a rear floor body. Along the length direction of the vehicle, the two ends of the front floor panel are respectively connected to the lower cross beam of the front wall panel and the rear floor body. The first door sill and the second door sill are located on both sides of the front floor panel, and a battery pack is installed at the bottom of the front floor panel.

3. The front floor structure according to claim 2, characterized in that: The battery pack includes a first battery pack installed between the first door sill and the second door sill along the vehicle width direction.

4. The front floor structure according to claim 3, characterized in that: It also includes a first front floor side beam assembly, which includes a first front floor side beam, a first connecting plate and a second connecting plate. The first end of the first front floor side beam is connected to the first mounting position on the lower cross beam of the front wall panel through the first end of the first connecting plate, and the second end of the first front floor side beam is connected to the second mounting position on the rear floor body through the second connecting plate.

5. The front floor structure according to claim 4, characterized in that: The battery pack includes a second battery pack, and the second battery pack is installed between the second door sill and the first front floor side member along the vehicle width direction.

6. The front floor structure according to claim 5, characterized in that: It also includes a second front floor side beam assembly, which includes a second front floor side beam, a third connecting plate and a fourth connecting plate. The first end of the second front floor side beam is connected to the third mounting position on the lower cross beam of the front wall panel through the first end of the third connecting plate, and the second end of the second front floor side beam is connected to the fourth mounting position on the rear floor body through the fourth connecting plate.

7. The front floor structure according to claim 6, characterized in that: The battery pack includes a third battery pack, and the third battery pack is installed between the first front floor side member and the second front floor side member along the vehicle width direction.

8. The front floor structure according to claim 6, characterized in that: The width of the first connecting plate is 50 mm to 75 mm, and the width of the third connecting plate is 50 mm to 75 mm.

9. The front floor structure according to claim 7, characterized in that: Along the length direction of the vehicle, the distance between one end of the first battery pack, the second battery pack, and the third battery pack close to the front floor panel and the front floor panel is 5-20 mm respectively.

10. The front floor structure according to claim 5 or 7, characterized in that: It also includes an exhaust channel, which is arranged between the first front floor side beam and the first door sill along the length direction of the vehicle, one end of the exhaust channel extends out of the lower surface of the lower cross beam of the front wall panel, and the other end of the exhaust channel extends out of the lower surface of the rear floor body.

11. A vehicle, characterized in that: The utility model comprises the front floor structure according to any one of claims 1 to 10.

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