Front floor assembly and vehicle

Abstract

The invention discloses a front floor assembly and a vehicle. The front floor assembly comprises a frame longitudinal beam, a front floor and a rear floor, the transverse outer side of the front floor is connected with the rear end of the frame longitudinal beam; the reinforcing plate is installed on the upper side of the front floor and located on the rear side of the frame longitudinal beam; wherein the reinforcing plate has a first reinforcing region and a second reinforcing region, the first reinforcing region is configured to extend in the transverse direction of the vehicle, and the second reinforcing region is configured to extend in the longitudinal direction of the vehicle. According to the front floor assembly, collision energy is effectively distributed, the transmission effect of the collision energy of the frame longitudinal beam is enhanced, the local collision energy of the connecting area of the front floor and the rear end of the frame longitudinal beam is reduced, and therefore the problem that due to the fact that the local collision energy is too large, the connecting position is torn and separated is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular to a front floor assembly and a vehicle having the front floor assembly. Background Art

[0002] Vehicle collision safety performance has received widespread attention. Vehicle collisions are generally divided into frontal / side / rear collisions, rollovers, and pedestrian collisions.

[0003] In related technologies, the overlap area between the vehicle's front floor and the frame longitudinal beam is a weak area of the vehicle body. When the vehicle is hit by a collision, the overlap area between the vehicle's front floor and the frame longitudinal beam and the surrounding welded connection area are easily torn and separated, resulting in poor collision energy transfer. There is still room for improvement in the vehicle's collision performance. Summary of the Invention

[0004] The present invention aims to address at least one of the technical problems existing in the prior art. To this end, the present invention provides a front floor assembly that effectively diverts collision energy, enhances the transfer of collision energy to the frame rails, and reduces the localized collision energy at the rear end connection between the front floor and the frame rails, thereby effectively preventing the problem of tearing and separation at the connection caused by excessive localized collision energy.

[0005] According to an embodiment of the present invention, a front floor assembly includes: a frame longitudinal rail; a front floor, the transverse outer side of the front floor being connected to the rear end of the frame longitudinal rail; and a reinforcement plate, the reinforcement plate being mounted on the upper side of the front floor and located behind the frame longitudinal rail; wherein the reinforcement plate has a first reinforcement area and a second reinforcement area, the first reinforcement area being configured to extend in the transverse direction of the vehicle, and the second reinforcement area being configured to extend in the longitudinal direction of the vehicle.

[0006] According to the front floor assembly of the embodiment of the present invention, by providing a reinforcement plate installed on the upper side of the front floor and located behind the frame longitudinal rail, the strength and rigidity of the connection between the front floor and the frame longitudinal rail are improved, so that the frame longitudinal rail can more efficiently transmit collision energy rearward. By providing a first reinforcement area extending laterally and a second reinforcement area extending longitudinally, effective diversion of collision energy is achieved, the transmission effect of collision energy to the frame longitudinal rail is enhanced, and the local collision energy in the rear end connection area of the front floor and the frame longitudinal rail is reduced, thereby effectively avoiding the problem of tearing and separation at the connection due to excessive local collision energy.

[0007] According to the front floor assembly of some embodiments of the present invention, a longitudinal beam extension is formed at the rear end of the frame longitudinal beam, and the longitudinal beam extension is configured to extend obliquely outward from the front to the rear, and the front floor and the reinforcement plate are sequentially connected to the longitudinal beam extension; wherein, the first reinforcement area and at least a portion of the longitudinal beam extension are arranged opposite each other in the transverse direction of the vehicle, and the second reinforcement area and at least a portion of the longitudinal beam extension are arranged opposite each other in the longitudinal direction of the vehicle.

[0008] According to the front floor assembly of some embodiments of the present invention, a first connecting flange is provided on the lateral outer side of the front floor, and a second connecting flange is provided on the reinforcing plate. The second connecting flange and the first connecting flange are sequentially connected to the inner side surface of the longitudinal beam extension portion.

[0009] According to some embodiments of the front floor assembly of the present invention, the lateral outer end of the first reinforcement area extends to connect with the second connecting flange; and / or the longitudinal front end of the second reinforcement area extends to connect with the second connecting flange.

[0010] According to the front floor assembly of some embodiments of the present invention, the first connecting flange is configured to bend and extend upward relative to the front floor, and the second connecting flange is configured to bend and extend upward relative to the reinforcing plate; and / or, the first connecting flange and the second connecting flange are configured as arc-shaped flanges.

[0011] According to the front floor assembly of some embodiments of the present invention, the first reinforcement area is configured as a first boss area protruding upward on the upper surface of the reinforcement plate; and / or the second reinforcement area is configured as a second boss area protruding upward on the upper surface of the reinforcement plate.

[0012] According to the front floor assembly of some embodiments of the present invention, a first energy absorbing cavity is formed between the bottom of the first boss area and the upper surface of the front floor; and / or a second energy absorbing cavity is formed between the bottom of the second boss area and the upper surface of the front floor.

[0013] According to the front floor assembly of some embodiments of the present invention, the lateral outer end of the first energy absorbing cavity is connected to the longitudinal front end of the second energy absorbing cavity; and / or, an arc-shaped chamfered edge is formed at the connection between the first boss area and the second boss area.

[0014] According to the front floor assembly of some embodiments of the present invention, at least a portion of the first boss area and / or the second boss area is configured as a downwardly concave recessed groove area.

[0015] According to some embodiments of the present invention, the front floor assembly further includes a floor longitudinal beam, which is located below the front floor. The floor longitudinal beam and at least a portion of the reinforcement plate are vertically opposed to each other on both sides of the front floor.

[0016] According to some embodiments of the front floor assembly of the present invention, the floor longitudinal member is located directly below the second reinforcement area; and / or, in a projection along the vertical direction of the vehicle, the projection of the floor longitudinal member and the projection of the frame longitudinal member are opposite to each other along the longitudinal direction of the vehicle.

[0017] According to the front floor assembly of some embodiments of the present invention, a third energy absorbing cavity is further formed between the floor longitudinal beam and the front floor.

[0018] According to some embodiments of the front floor assembly of the present invention, there are two frame longitudinal beams and two reinforcing plates, and the rear ends of the two frame longitudinal beams are respectively connected to the lateral sides of the front floor; wherein the two reinforcing plates are arranged on the rear sides of the two frame longitudinal beams in a one-to-one correspondence and are respectively connected to the lateral sides of the front floor.

[0019] The present invention also provides a vehicle.

[0020] A vehicle according to an embodiment of the present invention includes the front floor assembly described in any one of the above embodiments.

[0021] The advantages of the vehicle and the above-mentioned front floor assembly over the prior art are the same and will not be repeated here.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0024] Figure 1 This is a schematic diagram of the structure of the front floor assembly according to an embodiment of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the front floor assembly according to an embodiment of the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the structure of the front floor assembly according to an embodiment of the present invention. Figure 3 ;

[0027] Figure 4 is a schematic diagram of a partial structure of a front floor assembly according to an embodiment of the present invention;

[0028] Figure 5 is a partial cross-section of a front floor assembly according to an embodiment of the present invention Figure 1 ;

[0029] Figure 6 is a partial cross-section of a front floor assembly according to an embodiment of the present invention Figure 2 ;

[0030] Figure 7 This is a schematic diagram of the structure of the front floor assembly according to an embodiment of the present invention. Figure 4 (Reinforcement plate not installed);

[0031] Figure 8 This is a schematic diagram of the structure of the reinforcement plate according to an embodiment of the present invention. Figure 1 ;

[0032] Figure 9 This is a schematic diagram of the structure of the reinforcement plate according to an embodiment of the present invention. Figure 2 .

[0033] Reference numerals:

[0034] Front floor assembly 100,

[0035] Frame longitudinal beam 1, longitudinal beam extension 11,

[0036] Front floor 2, first connecting flange 21,

[0037] Reinforcement plate 3, first reinforcement area 31, first energy absorption cavity 311, second reinforcement area 32, sinking groove area 321, second connecting flange 33, second energy absorption cavity 331, arc chamfered edge 34,

[0038] Floor longitudinal beam 4 , third energy absorption cavity 41 , front wall cross beam 5 . DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, 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 may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or 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 the present invention based on the specific circumstances.

[0042] Unless otherwise specified, the front-to-back direction in this application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0043] Reference below Figures 1-9 The front floor assembly 100 according to an embodiment of the present invention is described. The front floor assembly 100 effectively diverts collision energy, enhances the transmission of collision energy to the frame rail 1, and reduces the local collision energy in the area where the front floor 2 and the rear end of the frame rail 1 are connected, thereby effectively avoiding the problem of tearing and separation at the connection due to excessive local collision energy.

[0044] like Figures 1-9 As shown, a front floor assembly 100 according to one embodiment of the present invention includes: a frame longitudinal rail 1 , a front floor 2 and a reinforcement plate 3 .

[0045] The frame rail 1 is an important component of the vehicle frame. It extends in the longitudinal direction, that is, the front-to-back direction of the vehicle, to connect and support other vehicle structures, provide longitudinal support for the entire vehicle, and bear various loads inside and outside the vehicle. The front end of the frame rail 1 can be connected to the front anti-collision beam to absorb and disperse the impact force during a collision and protect the safety of the passengers in the vehicle.

[0046] The transverse outer side of the front floor 2 is connected to the rear end of the frame longitudinal beam 1 to fix the front floor 2.

[0047] like Figure 1 As shown, the reinforcement plate 3 is installed on the upper side of the front floor 2 and located on the rear side of the frame rail 1. The reinforcement plate 3 is used to effectively reinforce the connection between the front floor 2 and the frame rail 1 to improve the strength and rigidity of this location. In this way, in the event of a head-on collision or an offset collision, the frame rail 1 can more efficiently transfer the collision energy backward, preventing the connection from being torn and separated due to excessive collision energy.

[0048] Furthermore, the reinforcement plate 3 has a first reinforcement region 31 and a second reinforcement region 32 . The first reinforcement region 31 is configured to extend in the vehicle transverse direction, and the second reinforcement region 32 is configured to extend in the vehicle longitudinal direction.

[0049] That is, the first reinforcement region 31 extends in the left-right direction of the vehicle, and the second reinforcement region 32 extends in the front-to-back direction of the vehicle. Thus, in the event of a head-on collision or an offset collision, since the reinforcement plate 3 is mounted on the rear side of the frame rail 1, the collision energy transferred to the frame rail 1 can be transferred rearward to the reinforcement plate 3. Furthermore, since the first reinforcement region 31 and the second reinforcement region 32 extend in different directions, the reinforcement plate 3 can effectively divert the collision energy. That is, a portion of the collision energy can be transferred transversely to the center channel via the first reinforcement region 31, and another portion of the collision energy can be transferred longitudinally to the rear side of the vehicle via the second reinforcement region 32. This enhances the collision energy transfer effect to the frame rail 1, reduces the local collision energy in the area where the front floor 2 connects to the rear end of the frame rail 1, and effectively avoids the problem of tearing and separation at the connection due to excessive local collision energy.

[0050] According to the front floor assembly 100 of the embodiment of the present invention, by providing a reinforcement plate 3 mounted on the upper side of the front floor 2 and located behind the frame rail 1, the strength and rigidity of the connection between the front floor 2 and the frame rail 1 are improved, so that the frame rail 1 can more efficiently transmit collision energy rearward. By providing a transversely extending first reinforcement area 31 and a longitudinally extending second reinforcement area 32, effective diversion of collision energy is achieved, the transmission effect of collision energy to the frame rail 1 is enhanced, and the local collision energy in the rear end connection area of the front floor 2 and the frame rail 1 is reduced, thereby effectively preventing the connection from being torn and separated due to excessive local collision energy.

[0051] In some embodiments, as Figure 1-Figure 3As shown, a longitudinal beam extension 11 is formed at the rear end of the frame longitudinal beam 1. The longitudinal beam extension 11 is configured to extend obliquely outward from the front to the rear. The front floor 2 and the reinforcement plate 3 are sequentially connected to the longitudinal beam extension 11, that is, the longitudinal beam extension 11 is located on the outside, the reinforcement plate 3 is located on the inside, and the front floor 2 is located between the longitudinal beam extension 11 and the reinforcement plate 3. Thus, the front floor 2 is connected between the reinforcement plate 3 and the longitudinal beam extension 11, and the outer reinforcement plate 3 reinforces the connection between the front floor 2 and the longitudinal beam extension 11.

[0052] Furthermore, the first reinforcement region 31 and at least a portion of the longitudinal beam extension portion 11 are disposed opposite each other in the transverse direction of the vehicle, and the second reinforcement region 32 and at least a portion of the longitudinal beam extension portion 11 are disposed opposite each other in the longitudinal direction of the vehicle.

[0053] Specifically, if Figure 2 As shown, the first reinforcement area 31 and at least a portion of the longitudinal beam extension 11 are arranged opposite each other in the left-right direction of the vehicle, and the second reinforcement area 32 and at least a portion of the longitudinal beam extension 11 are arranged opposite each other in the front-rear direction of the vehicle. In this way, the collision energy on the frame longitudinal beam 1 can be effectively transferred to the reinforcement plate 3, and the collision energy transferred to the reinforcement plate 3 can be effectively and accurately diverted. A portion of the collision energy can be smoothly transferred to the inner side of the vehicle and to the center channel through the first reinforcement area 31 along the left-right direction, and the other portion of the collision energy can be smoothly transferred to the rear of the vehicle through the second reinforcement area 32 along the front-rear direction.

[0054] In some embodiments, a first connecting flange 21 is provided on the lateral outer side of the front floor 2 , and a second connecting flange 33 is provided on the reinforcing plate 3 . The second connecting flange 33 and the first connecting flange 21 are sequentially connected to the inner side surface of the longitudinal beam extension 11 .

[0055] Specifically, if Figure 7 As shown, the lateral outer side of the front floor 2, that is, the left outer side and / or the right outer side of the front floor 2, is provided with a first connecting flange 21, as shown in FIG. Figure 4 As shown, a second connecting flange 33 is provided on the reinforcing plate 3, and the first connecting flange 21 is adapted to the second connecting flange 33, wherein the second connecting flange 33 and the first connecting flange 21 are sequentially connected to the inner side surface of the longitudinal beam extension 11, that is, the first connecting flange 21 is connected between the second connecting flange 33 and the inner side surface of the longitudinal beam extension 11, and along the inner and outer directions of the vehicle, the second connecting flange 33 is located at the innermost side, and the inner side surface of the longitudinal beam extension 11 is located at the outermost side.

[0056] Thus, a stable connection between the front floor 2 , the reinforcement plate 3 and the longitudinal member extension 11 is achieved by the first connecting flange 21 and the second connecting flange 33 .

[0057] In some embodiments, as Figure 3 and Figure 4As shown, the transverse outer end of the first reinforcement area 31 extends to connect with the second connecting flange 33.

[0058] Thus, the first reinforcement region 31 is connected to the longitudinal beam extension portion 11 via the second connecting flange 33 , so that the collision energy on the frame longitudinal beam 1 can be smoothly transferred to the first reinforcement region 31 via the second connecting flange 33 .

[0059] In other embodiments, Figure 3 and Figure 4 As shown, the longitudinal front end of the second reinforcement area 32 extends to connect with the second connecting flange 33 .

[0060] Thus, the second reinforcement area 32 is connected to the longitudinal beam extension 11 through the second connecting flange 33 , so that the collision energy on the frame longitudinal beam 1 can be smoothly transferred to the second reinforcement area 32 through the second connecting flange 33 .

[0061] In some embodiments, as Figure 7 As shown, the first connecting flange 21 is configured to be bent upward relative to the front floor 2, as shown in FIG. Figure 8 and Figure 9 As shown, the second connecting flange 33 is configured to be bent and extended upward relative to the reinforcing plate 3 .

[0062] Thus, the first connecting flange 21 can be fitted to the outer side of the longitudinal beam extension 11, thereby realizing a tight fitting connection between the front floor 2 and the longitudinal beam extension 11, and the second connecting flange 33 can be fitted to the outer side of the first connecting flange 21, thereby realizing a tight fitting connection between the first connection and the second connecting flange 33, thereby realizing a stable and reliable connection between the longitudinal beam extension 11, the front floor 2 and the reinforcing plate 3.

[0063] In actual design, the first connecting flange 21 can be connected to the outer side of the longitudinal beam extension 11 by welding, and the second connecting flange 33 can be connected to the outer side of the first connecting flange 21 by welding, thereby improving the connection stability and reliability between the longitudinal beam extension 11, the front floor 2 and the reinforcement plate 3, and further improving the strength and rigidity of this area.

[0064] In other embodiments, the first connecting flange 21 and the second connecting flange 33 are configured as arc-shaped flanges.

[0065] Specifically, if Figure 2As shown, the first connecting flange 21 and the second connecting flange 33 are constructed as arc-shaped flanges, so that they can adapt to the inner surface shape of the longitudinal beam extension 11, so that the front floor 2 can be smoothly connected to the longitudinal beam extension 11 through the first connecting flange 21, and the reinforcement plate 3 can be smoothly connected to the front floor 2 through the second connecting flange 33, avoiding the generation of gaps at the connection, thereby achieving a tight connection between the longitudinal beam extension 11, the front floor 2 and the reinforcement plate 3.

[0066] The first connecting flange 21 and the second connecting flange 33 are constructed as arc-shaped flanges, which can also reduce the generation of local stress, thereby further improving the strength and rigidity of the connection area between the front floor 2 and the longitudinal beam extension 11, preventing fracture at the connection, and further improving the transmission effect of collision energy, so that the collision energy on the frame longitudinal beam 1 can be more efficiently transmitted to the reinforcement plate 3 and the front floor 2.

[0067] In some embodiments, the first reinforcement region 31 is configured as a first boss region protruding upward on the upper surface of the reinforcement plate 3 .

[0068] Specifically, if Figure 8 and Figure 9 As shown, the first reinforcement area 31 protrudes upward relative to the upper surface of the reinforcement plate 3, so that the first reinforcement area 31 is separated from the upper surface of the front floor 2, forming a certain spatial area. This spatial area can effectively absorb the collision energy transmitted in the lateral direction, reduce the lateral collision energy intensity here, and prevent the impact energy intensity here from being too high, thereby further preventing the front floor 2 from breaking at the connection between the longitudinal beam extension 11 and the front floor 2, and reducing the collision energy transmitted to the center channel.

[0069] In other embodiments, the second reinforcement region 32 is configured as a second boss region protruding upward on the upper surface of the reinforcement plate 3 .

[0070] Specifically, if Figure 8 and Figure 9 As shown, the second reinforcement area 32 protrudes upward relative to the upper surface of the reinforcement plate 3, so that the second reinforcement area 32 is separated from the upper surface of the front floor 2, forming a certain space area. This space area can effectively absorb the collision energy transmitted in the longitudinal direction, reduce the longitudinal collision energy intensity here, and prevent the impact energy intensity here from being too high, thereby further preventing the front floor 2 from breaking at the connection between the longitudinal beam extension 11 and the longitudinal beam extension 11, and reducing the collision energy transmitted backward.

[0071] In some embodiments, a first energy absorbing cavity 311 is formed between the bottom of the first boss area and the upper surface of the front floor 2 .

[0072] Specifically, if Figure 6As shown, a certain distance is separated between the bottom of the first boss area and the upper surface of the front floor 2 to form a first energy-absorbing cavity 311. As a result, the collision energy transmitted to the first boss area can be effectively absorbed and dispersed by the first energy-absorbing cavity 311, thereby reducing the intensity of the collision energy and avoiding excessive local collision energy. At the same time, the collision energy absorbed by the first energy-absorbing cavity 311 can continue to be transmitted along the first boss area in the left-right direction to the middle channel.

[0073] In other embodiments, a second energy absorbing cavity 331 is formed between the bottom of the second boss area and the upper surface of the front floor 2 .

[0074] Specifically, if Figure 5 As shown, a certain distance is separated between the bottom of the second boss area and the upper surface of the front floor 2 to form a second energy-absorbing cavity 331. As a result, the collision energy transmitted to the second boss area can be effectively absorbed and dispersed by the second energy-absorbing cavity 331, thereby reducing the intensity of the collision energy and avoiding excessive local collision energy. At the same time, the collision energy absorbed by the second energy-absorbing cavity 331 can continue to be transmitted along the second boss area in the front-to-rear direction toward the rear of the vehicle.

[0075] In some embodiments, as Figure 6 As shown, the transverse outer end of the first energy absorbing cavity 311 is connected to the longitudinal front end of the second energy absorbing cavity 331 .

[0076] As a result, the first energy absorption cavity 311 is connected to the second energy absorption cavity 331, and the collision energy transmitted through the vehicle longitudinal beam can be simultaneously transmitted to the first reinforcement area 31 and the second reinforcement area 32, and effectively absorbed and dispersed by the first energy absorption cavity 311 and the second energy absorption cavity 331 at the same time, thereby improving the absorption effect of the collision energy.

[0077] Such arrangement is also easy to manufacture and is simple and convenient.

[0078] In other embodiments, Figure 8 and Figure 9 As shown, an arc-shaped chamfered edge 34 is formed at the connection between the first boss area and the second boss area.

[0079] Therefore, the setting of the arc chamfered edge 34 can make the first boss area and the second boss area smoothly connected, reducing the stress concentration at the connection between the first boss area and the second boss area, enhancing the strength and durability of the overall structure of the reinforcing plate 3, and avoiding the fracture at the connection between the first boss area and the second boss area due to stress concentration.

[0080] In addition, when a vehicle collides, the arc-shaped chamfered edge 34 can guide the collision energy to be transmitted and absorbed more evenly, thereby improving the collision energy absorption effect. The arc-shaped chamfered edge 34 is also easy to manufacture, thereby improving production efficiency.

[0081] In some embodiments, at least a portion of the first boss region and / or the second boss region is configured as a downwardly concave recessed groove region 321 .

[0082] That is to say, at least a portion of the first boss area can be constructed as a downwardly concave groove area 321 to enhance the strength and rigidity of the first boss area, or at least a portion of the second boss area can be constructed as a downwardly concave groove area 321 to enhance the strength and rigidity of the second boss area, or at least a portion of the first boss area and the second boss area can be constructed as a downwardly concave groove area 321 to enhance the strength and rigidity of the first boss area and the second boss area at the same time, thereby improving the structural strength and rigidity of the entire reinforcement plate 3, so that the reinforcement plate 3 can better absorb, disperse and transfer collision energy.

[0083] Specifically, if Figure 8 and Figure 9 As shown, at least a portion of the second boss area is configured as a downwardly concave recessed groove area 321 , thereby enhancing the strength and rigidity of the second boss area.

[0084] In some embodiments, the front floor assembly 100 further includes a floor longitudinal beam 4 , which is located below the front floor 2 , and at least a portion of the floor longitudinal beam 4 and the reinforcement plate 3 are vertically opposed to each other on both sides of the front floor 2 .

[0085] Specifically, if Figure 1-Figure 3 As shown, the front floor assembly 100 further includes a floor longitudinal member 4. The floor longitudinal member 4 is located below the front floor 2 to support the floor longitudinal member 4, improve the rigidity and strength of the front floor 2, and ensure the installation stability of the front floor 2. The floor longitudinal member 4 extends in the longitudinal direction, i.e., the front-to-back direction of the vehicle. Therefore, when the vehicle is involved in a head-on collision or an offset collision, the floor longitudinal member 4 can also absorb and transmit the collision energy to reduce the injury to the driver.

[0086] It should be noted that the front end of the floor longitudinal beam 4 is connected to the longitudinal beam extension 11, and the connection area between the floor longitudinal beam 4 and the longitudinal beam extension 11 is a weak area. It is only connected to the longitudinal beam extension 11 through the front end side surface of the floor longitudinal beam 4. During a head-on collision or an offset collision, this area and its surrounding areas are prone to fracture and separation, resulting in poor collision energy transfer. That is, the collision energy on the longitudinal beam frame cannot be effectively transferred to the floor longitudinal beam 4 for absorption by the floor longitudinal beam 4.

[0087] like Figure 2As shown, at least portions of the floor stringer 4 and the reinforcing plate 3 are arranged on opposite sides of the front floor 2 in the vertical direction. This effectively strengthens the connection between the floor stringer 4 and the stringer extension 11, enhancing the energy transfer from the stringer extension 11 to the floor stringer 4. That is, the energy from the stringer extension 11 can be effectively transferred to the floor stringer 4, thereby preventing fracture and separation at the connection between the floor stringer 4 and the stringer extension 11 and the surrounding areas, which would result in ineffective rearward transmission of collision energy.

[0088] In some embodiments, as Figure 1 and Figure 2 As shown, the floor longitudinal member 4 is located directly below the second reinforcement region 32 .

[0089] Thus, the second reinforcement area 32 effectively strengthens the connection area between the floor longitudinal beam 4 and the longitudinal beam extension 11, thereby enhancing the energy transfer effect from the longitudinal beam extension 11 to the floor longitudinal beam 4. That is, the energy on the longitudinal beam extension 11 can be effectively transferred to the floor longitudinal beam 4, avoiding fracture and separation in the connection area between the floor longitudinal beam 4 and the longitudinal beam extension 11 and the surrounding area, which would result in the ineffective transmission of collision energy backward.

[0090] In other embodiments, in a projection along the vertical direction of the vehicle, the projection of the floor longitudinal member 4 and the projection of the frame longitudinal member 1 are opposite to each other along the longitudinal direction of the vehicle.

[0091] That is, in the projection along the vertical direction of the vehicle, the projection of the floor rail 4 and the projection of the frame rail 1 are directly opposite to each other in the front-rear direction of the vehicle. In other words, the floor rail 4 and the frame rail 1 are aligned in the front-rear direction of the vehicle with no misalignment or only a small misalignment.

[0092] Therefore, when the vehicle is involved in a frontal collision or an offset collision, it is possible to ensure that the collision energy is efficiently transferred from the frame rail 1 to the floor rail 4 , thereby quickly dissipating and absorbing the collision energy.

[0093] In some embodiments, a third energy absorbing cavity 41 is further formed between the floor longitudinal beam 4 and the front floor 2 .

[0094] Specifically, if Figure 4 As shown, the interior of the floor longitudinal beam 4 is hollow to form a third energy-absorbing cavity 41 between the floor longitudinal beam 4 and the front floor 2. In this way, the third energy-absorbing cavity 41 can effectively absorb the collision energy transmitted to the floor longitudinal beam 4, thereby reducing the intensity of the collision energy, thereby reducing damage to the occupants and the driver, and improving the driving safety of the vehicle.

[0095] In some embodiments, there are two frame longitudinal beams 1 and two reinforcement plates 3, and the rear ends of the two frame longitudinal beams 1 are respectively connected to the lateral sides of the front floor 2, wherein the two reinforcement plates 3 are arranged on the rear sides of the two frame longitudinal beams 1 in a one-to-one correspondence and are respectively connected to the lateral sides of the front floor 2.

[0096] Specifically, if Figure 1-Figure 3 As shown, there are two frame rails 1 and two reinforcement plates 3, each spaced apart along the left-right direction of the vehicle. The rear end of the left frame rail 1 is connected to the left outer end of the front floor 2, forming a single unit with the front floor 2. The rear end of the right frame rail 1 is connected to the right outer end of the front floor 2, forming a single unit with the front floor 2. The two reinforcement plates 3 are spaced apart and connected to the upper side of the front floor 2 along the left-right direction. The left reinforcement plate 3 is located behind the left frame rail 1, and the right reinforcement plate 3 is located behind the right frame rail 1. This effectively reinforces the left and right sides of the front floor 2, improving the strength and rigidity of the entire front floor 2. The two reinforcement plates 3 also effectively transmit and disperse the collision energy of the two frame rails 1.

[0097] In some embodiments, the front floor assembly 100 further includes a central channel, which is located in the middle of the front floor 2 and extends longitudinally along the vehicle, wherein the transverse inner ends of the two reinforcement plates 3 are respectively connected to two sides of the central channel.

[0098] Specifically, the front floor assembly 100 further includes a central channel, which is located in the middle of the front floor 2 and extends longitudinally of the vehicle to effectively strengthen the central area of the front floor 2. Figure 1-Figure 3 As shown, the lateral inner ends of the two reinforcing plates 3 can be connected to the two sides of the middle channel respectively, that is, the rightmost end of the left reinforcing plate 3 is connected to the left side of the middle channel, and the leftmost end of the right reinforcing plate 3 is connected to the right side of the middle channel. Thus, the collision energy transmitted to the two reinforcing plates 3 can smoothly reach the middle channel and continue to be transmitted backward through the middle channel.

[0099] In practice, if Figure 1 As shown, using the left side of the vehicle as an example, in the event of a head-on or offset collision, collision energy is transferred through the frame rail 1, which can be divided into four paths. The first path is: frame rail 1 → rail extension 11 → lower A-pillar; the second path is: frame rail 1 → dash cross member 5 → center tunnel; the third path is: frame rail 1 → rail extension 11 → floor rail 4 and second reinforced area 32 of reinforcement plate 3; and the fourth path is: frame rail 1 → rail extension 11 → first reinforced area 31 of reinforcement plate 3 → center tunnel.

[0100] Therefore, by providing the reinforcing plate 3 , a fourth force transmission path is added, which effectively diverts the collision energy transmitted to the longitudinal beam extension portion 11 , reduces the local collision energy, and thus avoids tearing of the weld due to excessive collision energy.

[0101] The present invention also provides a vehicle.

[0102] A vehicle according to an embodiment of the present invention includes the front floor assembly 100 according to any one of the above embodiments.

[0103] According to the vehicle of the embodiment of the present invention, by providing a reinforcement plate 3 installed on the upper side of the front floor 2 and located behind the frame rail 1, the strength and rigidity of the connection between the front floor 2 and the frame rail 1 are improved, so that the frame rail 1 can more efficiently transmit collision energy rearward. By providing the transversely extending first reinforcement area 31 and the longitudinally extending second reinforcement area 32, effective diversion of collision energy is achieved, the transmission effect of collision energy to the frame rail 1 is enhanced, and the local collision energy in the rear end connection area of the front floor 2 and the frame rail 1 is reduced, thereby effectively avoiding the problem of tearing and separation at the connection due to excessive local collision energy, thereby reducing injuries to the driver and passengers and improving vehicle safety.

[0104] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0105] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A front floor assembly, characterized in that: include: frame rails; a front floor, wherein a transverse outer side of the front floor is connected to a rear end of the frame longitudinal rail; a reinforcing plate mounted on an upper side of the front floor and located behind the frame rail; The reinforcement plate has a first reinforcement region and a second reinforcement region, wherein the first reinforcement region is configured to extend in a transverse direction of the vehicle, and the second reinforcement region is configured to extend in a longitudinal direction of the vehicle.

2. The front floor assembly according to claim 1, characterized in that: A longitudinal beam extension portion is formed at the rear end of the frame longitudinal beam, the longitudinal beam extension portion is configured to extend obliquely outward from front to rear, and the front floor and the reinforcement plate are sequentially connected to the longitudinal beam extension portion; The first reinforcement region and at least a portion of the longitudinal beam extension portion are disposed opposite each other in the transverse direction of the vehicle, and the second reinforcement region and at least a portion of the longitudinal beam extension portion are disposed opposite each other in the longitudinal direction of the vehicle.

3. The front floor assembly according to claim 2, characterized in that: A first connecting flange is provided on the transverse outer side of the front floor, and a second connecting flange is provided on the reinforcing plate. The second connecting flange and the first connecting flange are sequentially connected to the inner side surface of the longitudinal beam extension portion.

4. The front floor assembly according to claim 3, characterized in that: The transverse outer end of the first reinforcement area extends to connect with the second connecting flange; And / or, the longitudinal front end of the second reinforcement area extends to connect with the second connecting flange.

5. The front floor assembly according to claim 3, characterized in that: The first connecting flange is configured to be bent upward and extend relative to the front floor, and the second connecting flange is configured to be bent upward and extend relative to the reinforcement plate; And / or, the first connecting flange and the second connecting flange are configured as arc-shaped flanges.

6. The front floor assembly according to claim 1, characterized in that: The first reinforcement area is configured as a first boss area protruding upward on the upper surface of the reinforcement plate; And / or, the second reinforcement area is configured as a second boss area protruding upward on the upper surface of the reinforcement plate.

7. The front floor assembly according to claim 6, characterized in that: A first energy absorbing cavity is formed between the bottom of the first boss area and the upper surface of the front floor; And / or, a second energy absorbing cavity is formed between the bottom of the second boss area and the upper surface of the front floor.

8. The front floor assembly according to claim 7, characterized in that: The transverse outer end of the first energy absorbing cavity is communicated with the longitudinal front end of the second energy absorbing cavity; And / or, an arc-shaped chamfered edge is formed at the connection between the first boss area and the second boss area.

9. The front floor assembly according to claim 6, characterized in that: At least a portion of the first boss region and / or the second boss region is configured as a downwardly concave recessed groove region.

10. The front floor assembly according to any one of claims 1 to 9, characterized in that: The vehicle further comprises a floor longitudinal beam, which is located below the front floor. The floor longitudinal beam and at least a portion of the reinforcing plate are arranged on both sides of the front floor facing each other in the up-down direction.

11. The front floor assembly according to claim 10, characterized in that: The floor longitudinal beam is located directly below the second reinforcement area; And / or, in a projection along the vertical direction of the vehicle, the projection of the floor longitudinal member and the projection of the frame longitudinal member are opposite to each other along the longitudinal direction of the vehicle.

12. The front floor assembly according to claim 10, characterized in that: A third energy absorbing cavity is formed between the floor longitudinal beam and the front floor.

13. The front floor assembly according to any one of claims 1 to 9, characterized in that: There are two frame longitudinal beams and two reinforcing plates, and the rear ends of the two frame longitudinal beams are respectively connected to the lateral sides of the front floor; The two reinforcing plates are arranged on the rear sides of the two frame longitudinal beams in a one-to-one correspondence and are respectively connected to the two lateral sides of the front floor.

14. The front floor assembly according to claim 13, characterized in that: It also includes a central channel, which is located in the middle of the front floor and extends in the longitudinal direction of the vehicle; Wherein, the transverse inner ends of the two reinforcing plates are respectively connected to the two sides of the middle channel.

15. A vehicle, characterized in that: The invention comprises the front floor assembly according to any one of claims 1 to 9.

Images