CN218703537U

CN218703537U - Front floor structure capable of improving side impact performance and vehicle with front floor structure

Info

Publication number: CN218703537U
Application number: CN202223105537.3U
Authority: CN
Inventors: 胡彪; 杨金秀
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-24
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a promote preceding floor structure of side impact performance and vehicle that has it, promote the preceding floor structure of side impact performance include preceding floor and with preceding floor fixed connection's left side threshold inner panel, right side threshold inner panel, preceding floor left side roof beam, preceding floor right side roof beam, preceding floor left side roof beam reinforcing plate, preceding floor right side roof beam reinforcing plate and preceding floor entablature, wherein, preceding floor left side roof beam installs the downside on preceding floor, preceding floor left side roof beam reinforcing plate is relative from top to bottom with preceding floor left side roof beam, install the side of going up on preceding floor, and at least part extend towards the left side in order to with left side threshold inner panel fixed connection, preceding floor structure right side and left side are treated the same reason. According to the utility model discloses a promote front floor structure of side impact performance can better promote the holistic load intensity in vehicle front floor for when the vehicle takes place the side impact, effectively reduce front floor lateral part deformation degree, reduce the extrusion of vehicle lateral part to the car in, better promote the security performance of vehicle.

Description

Front floor structure capable of improving side impact performance and vehicle with front floor structure

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a promote front floor structure of side impact performance and vehicle that has it.

Background

The existing front floor structure is that a front floor side beam reinforcing plate does not extend to a threshold inner plate, so that the structural strength between the front floor side beam and the threshold inner plate is weak, the front floor side beam is easy to deform due to collision, the deformation of the front floor side beam is large, the invasion amount of a vehicle body is too large, the internal space of the vehicle body is not ensured, the safety of passengers in the vehicle cannot be guaranteed, a supporting plate is absent in the front floor side beam, the capability of the front floor side beam for supporting side collision is weakened, and the front floor side beam is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a promote front floor structure that side bumped the performance, promote the front floor structure that side bumped the performance and can promote the holistic load strength in vehicle front floor better for when the vehicle takes place the side and bumps, effectively reduce front floor lateral part deformation degree, reduce the extrusion of vehicle lateral part in to the car, the security performance of better promotion vehicle.

According to the embodiment of the present invention, the front floor structure for improving side impact performance comprises a front floor and a left side threshold inner plate, a right side threshold inner plate, a left side beam of the front floor, a right side beam of the front floor, a left side beam of the front floor, a reinforcing plate of the right side beam of the front floor and an upper beam of the front floor, which are fixedly connected with the front floor, wherein the left side beam of the front floor is installed on the lower side surface of the front floor, the reinforcing plate of the left side beam of the front floor is vertically opposite to the left side beam of the front floor, is installed on the upper side surface of the front floor, and at least partially extends towards the left side to be fixedly connected with the left side threshold inner plate; the front floor right side beam is arranged on the lower side surface of the front floor, and the front floor right side beam reinforcing plate is vertically opposite to the front floor right side beam, is arranged on the upper side surface of the front floor, and at least partially extends towards the right side to be fixedly connected with the right side threshold inner plate; the front floor upper cross member is connected between the front floor left side rail reinforcement panel and the front floor right side rail reinforcement panel.

According to the front floor structure capable of improving the side impact performance, the left side sill reinforcing plate of the front floor is extended towards the left side and fixedly connected with the left side sill inner plate, so that the strength between the left side sill inner plate and the left side sill reinforcing plate of the front floor is better enhanced, and when a vehicle is subjected to side impact, the deformation degree of the left part of the front floor structure is better reduced, so that the safety of passengers on the left side in the vehicle is improved; the right side sill reinforcing plate of the front floor extends towards the right side and is fixedly connected with the right side sill inner plate, so that the strength between the right side sill inner plate and the right side sill reinforcing plate of the front floor is better enhanced, and the deformation degree of the right part of the front floor structure is better reduced when a vehicle is laterally collided, so that the safety of passengers on the right side in the vehicle is improved; through connecting front floor entablature between front floor left side roof beam reinforcing plate and front floor right side roof beam reinforcing plate, promote the holistic load bearing strength in vehicle front floor better for when the vehicle takes place the side impact, effectively reduce front floor lateral part deformation degree, reduce the extrusion of vehicle lateral part in to the car, better promotion vehicle's security performance.

In some embodiments of the present invention, the front floor left side beam reinforcing plate includes an integrally formed first main plate and a first auxiliary plate, the first main plate extends in the front-rear direction and is opposite to the front floor left side beam from top to bottom, the first auxiliary plate extends toward the left side to be fixedly connected to the left side threshold inner plate, the front floor right side beam reinforcing plate includes an integrally formed second main plate and a second auxiliary plate, the second main plate extends in the front-rear direction and is opposite to the front floor right side beam from top to bottom, the second auxiliary plate extends toward the right side to be fixedly connected to the right side threshold inner plate.

In some embodiments of the present invention, the left and right ends of the front floor upper beam extend to the first sub-panel and the second sub-panel, respectively, to be fixedly connected with the first sub-panel and the second sub-panel.

The utility model discloses an in some embodiments, preceding floor structure still includes left side roof beam backup pad and right side roof beam backup pad, preceding floor left side roof beam has the ascending left side roof beam body die cavity of opening, left side roof beam backup pad is located in the left side roof beam body die cavity, and about both ends respectively with two lateral wall fixed connection of the left and right sides of left side roof beam body die cavity, preceding floor right side roof beam has the ascending right side roof beam body die cavity of opening, right side roof beam backup pad is located in the right side roof beam body die cavity, and right side both ends respectively with two lateral wall fixed connection in the right side of right side roof beam body die cavity.

In some embodiments of the present invention, the left side beam support plate and the right side beam support plate are cross sections in a shape of a Chinese character 'ji' in a cross section perpendicular to a straight line in a left-right direction.

The utility model discloses an in some embodiments, promote the front floor structure of side impact performance still include front floor bottom end rail, front floor bottom end rail's both ends respectively with the right side wall of left side roof beam body die cavity the left side wall fixed connection of right side roof beam body die cavity.

In some embodiments of the present invention, the front floor structure for improving side impact performance further comprises a first battery mounting bracket and a second battery mounting bracket, the battery is detachably connected to the first battery mounting bracket and the second battery mounting bracket, wherein the first battery mounting bracket is mounted between the front floor lower beam and the front floor left side beam, and the second battery mounting bracket is mounted between the front floor lower beam and the front floor right side beam.

The utility model discloses an in some embodiments, promotion side bump performance's preceding floor structure still include left side threshold connecting plate, the both ends of left side threshold connecting plate respectively with left side threshold inner panel the left side wall fixed connection of left side roof beam body die cavity, right side threshold connecting plate, the both ends of right side threshold connecting plate respectively with right side threshold inner panel the right side wall fixed connection of right side roof beam body die cavity.

In some embodiments of the present invention, the front floor upper beam is a cross section in a shape of a Chinese character ji in a cross section perpendicular to a straight line in the front-rear direction.

The utility model discloses still provide a vehicle.

According to the utility model discloses vehicle bumps the preceding floor structure of performance through the promotion side that is provided with above-mentioned embodiment, can better promote holistic load strength in vehicle front floor for when the vehicle takes place the side and bumps, effectively reduce preceding floor lateral part deformation degree, reduce the extrusion of vehicle lateral part to the car in, better promotion vehicle security performance.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a front floor structure for improving side impact performance according to an embodiment of the present invention.

Fig. 2 is a plan view of a front floor structure for improving side impact performance according to an embodiment of the present invention.

Fig. 3 is a bottom view of a front floor structure for improving side impact performance according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a left side beam support plate for improving side impact performance according to the embodiment of the present invention.

Reference numerals:

the front floor structure 100 is constructed in a structure,

a left side sill inner panel 10, a right side sill inner panel 20, a front floor left side rail 30, a front floor right side rail 40, a front floor left side rail reinforcement panel 50, a first main panel 51, a first sub-panel 52, a front floor right side rail reinforcement panel 60, a second main panel 61, a second sub-panel 62, a front floor upper cross member 70, a front floor lower cross member 80, a left side sill connection panel 1, a right side sill connection panel 2, a left side rail support panel 3, a first battery mounting bracket 4, a second battery mounting bracket 5, a right side rail support panel 6,

a vehicle 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

A front floor structure 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

Referring to fig. 1, a front floor structure 100 for improving side impact performance according to an embodiment of the present invention includes a front floor and a left side sill inner 10, a right side sill inner 20, a front floor left side beam 30, a front floor right side beam 40, a front floor left side beam stiffener 50, a front floor right side beam stiffener 60, and a front floor top beam 70 fixedly connected to the front floor, wherein the front floor left side beam 30 is mounted on a lower side surface of the front floor, the front floor left side beam stiffener 50 is vertically opposite to the front floor left side beam 30, mounted on an upper side surface of the front floor, and at least a portion of the front floor left side beam stiffener 50 extends toward the left side to be fixedly connected to the left side sill inner 10; the front floor right side member 40 is installed on the lower side of the front floor, and the front floor right side member reinforcing plate 60 is installed on the upper side of the front floor in a vertically opposite manner to the front floor right side member 40, and at least partially extends toward the right side to be fixedly connected with the right side sill inner panel 20; the front floor cross member 70 is connected between the front floor left side rail reinforcement panel 50 and the front floor right side rail reinforcement panel 60.

Referring to an embodiment shown in fig. 2, the front floor left side rail reinforcing plate 50 is installed on the upper side of the front floor, is vertically opposite to the front floor left side rail 30, and at least partially extends towards the left side to be fixedly connected with the left side sill inner plate 10, so that the strength between the left side sill inner plate 10 and the front floor left side rail reinforcing plate 50 is preferably enhanced, and the deformation degree of the left portion of the front floor structure 100 is preferably reduced when the vehicle 200 is subjected to side impact, so as to improve the safety of passengers on the left side in the vehicle; the front floor right side beam reinforcing plate 60 is arranged on the upper side of the front floor, is vertically opposite to the front floor right side beam 40, at least partially extends towards the right side to be fixedly connected with the right side sill inner plate 20, the strength between the right side sill inner plate 20 and the front floor right side beam reinforcing plate 60 is better enhanced, the deformation degree of the right part of the front floor structure 100 is better reduced when the vehicle 200 is subjected to side impact so as to improve the safety of passengers on the right side in the vehicle, the front floor upper cross beam 70 is connected between the front floor left side beam reinforcing plate 50 and the front floor right side beam reinforcing plate 60, so that the front floor, the left side sill 10, the right side sill inner plate 20, the front floor left side beam 30, the front floor right side beam 40, the front floor left side beam reinforcing plate 50, the front floor right side beam reinforcing plate 60 and the front floor upper cross beam 70 form a complete upper part force transmission path, the whole force bearing strength of the vehicle 200 is better improved, the deformation of the front floor is effectively reduced when the vehicle 200 is subjected to side impact, the extrusion degree of the side beam 200 in the vehicle is reduced, and the safety impact of the vehicle 200 is better.

Therefore, according to the front floor structure 100 capable of improving the side impact performance of the embodiment of the invention, the left side sill reinforcing plate 50 of the front floor is extended towards the left side and fixedly connected with the left side sill inner plate 10, so that the strength between the left side sill inner plate 10 and the left side sill reinforcing plate 50 of the front floor is better enhanced, and when the vehicle 200 is subjected to side impact, the deformation degree of the left part of the front floor structure 100 is better reduced, so that the safety of passengers on the left side in the vehicle is improved; the right side sill reinforcing plate 60 of the front floor extends towards the right side and is fixedly connected with the right side sill inner plate 20, so that the strength between the right side sill inner plate 20 and the right side sill reinforcing plate 60 of the front floor is better enhanced, and the deformation degree of the right part of the front floor structure 100 is better reduced when the vehicle 200 is subjected to side impact, so that the safety of passengers on the right side in the vehicle is improved; by connecting the upper front floor crossbeam 70 between the left front floor side beam reinforcing plate 50 and the right front floor side beam reinforcing plate 60, the overall bearing strength of the front floor of the vehicle 200 is improved, so that when the vehicle 200 is subjected to side impact, the deformation degree of the side part of the front floor is effectively reduced, the extrusion of the side part of the vehicle 200 to the interior of the vehicle is reduced, and the safety performance of the vehicle 200 is improved.

In some embodiments of the present invention, the front floor left side rail reinforcing plate 50 includes the first main plate 51 and the first sub plate 52 which are integrally formed, thereby the integrity and strength of the front floor left side rail reinforcing plate 50 can be improved well, the first main plate 51 extends along the front-rear direction and is opposite to the front floor left side rail 30 from top to bottom, the strength between the front floor left side rail reinforcing plate 50 and the front floor left side rail 30 is improved well, the first sub plate 52 extends towards the left side to be fixedly connected with the left side sill inner plate 10, the strength between the front floor left side rail reinforcing plate 50 and the left side sill inner plate 10 is improved well, the degree of deformation caused by the side impact on the left side of the front floor is reduced, thereby the integrity of the front floor is maintained to a greater extent, the resistance to the side impact force of the vehicle 200 from the left side is improved, the safety performance of the vehicle 200 and the safety of the vehicle occupant on the left side in the vehicle are improved, the front floor right side rail reinforcing plate 60 includes the second main plate 61 and the second sub plate 62 which are integrally formed, the second main plate 61 extends along the front side direction and the right side rail reinforcing plate 40, the right side rail reinforcing plate extends towards the left side rail inner plate, and the left side rail 20, the right side rail 20, and the front side rail 20 are connected to the front side rail.

In some embodiments of the present invention, the left and right ends of the front floor upper beam 70 extend to the first sub-panel 52 and the second sub-panel 62 respectively to be fixedly connected to the first sub-panel 52 and the second sub-panel 62, so as to extend the extension length of the front floor upper beam 70 in the left-right direction, and further strengthen the connection strength between the front floor upper beam 70 and the front floor left side beam reinforcing plate 50 and the front floor right side beam reinforcing plate 60, and make the front floor, the left side sill inner panel 10, the right side sill inner panel 20, the front floor left side beam 30, the front floor right side beam 40, the front floor left side beam reinforcing plate 50, the front floor right side beam reinforcing plate 60 and the front floor upper beam 70 form a complete upper force transmission path, so as to improve the structural strength of the left side and the right side of the front floor structure 100, and effectively transmit the side collision force, so as to better reduce the deformation degree of the left side and the right side of the front floor structure 100 when receiving the force, and improve the safety of passengers in the vehicle.

The utility model discloses an in some embodiments, promote preceding floor structure 100 of side impact performance still includes left side roof beam backup pad 3 and right side roof beam backup pad 6, preceding floor left side roof beam 30 has the ascending left side roof beam body die cavity of opening, left side roof beam backup pad 3 is located left side roof beam body die cavity, and control both ends respectively with left side roof beam body die cavity about two lateral wall fixed connection, it needs to explain that, left side roof beam backup pad 3 has the supporting role to left side roof beam body die cavity, left side roof beam body die cavity and left side roof beam backup pad 3 can absorb the side impact better, and simultaneously, can also transmit the side impact force to the right better, make the impact resistance of preceding floor left side roof beam 30 obtain better promotion, thereby promote the ability of the left anti-impact force of preceding floor structure 100, and then the interior left side of lift truck takes personnel's security. Similarly, the front floor right side beam 40 has a right beam body cavity with an upward opening, the right side beam support plate 6 is located in the right beam body cavity, and the right end of the right side beam is fixedly connected with the right side wall of the right beam body cavity, so that the impact resistance of the front floor right side beam 40 can be improved well, the anti-collision capacity of the right side of the front floor structure 100 is improved, and the safety of the passengers on the right side in the vehicle is improved.

Further, in the cross section perpendicular to the left-right direction straight line, the left side beam support plate 3 and the right side beam support plate 6 are both cross sections in a shape like a Chinese character ji, so that the left side beam cavity and the right side beam cavity with upward openings are more attached, the left side beam support plate 3 supports the front floor left side beam 30 to resist side impact force and simultaneously deforms to a smaller extent in a collapsing manner, partial side impact force is absorbed and transmitted to the right, the left side deformation degree of the front floor structure 100 is reduced, the damaged degree of the left side in the vehicle is reduced, the safety of passengers on the left side in the vehicle is improved, the right side beam support plate 6 supports the front floor right side beam 40 to resist side impact force and simultaneously deforms to a smaller extent in a collapsing manner, partial side impact force is absorbed and transmitted to the left, the right side deformation degree of the front floor structure 100 is reduced, the damaged degree of the right side in the vehicle is reduced, and the safety of passengers on the right side in the vehicle is improved.

Furthermore, the two ends of the front floor lower cross beam 80 are respectively and fixedly connected with the right side wall of the left beam body cavity and the left side wall of the right beam body cavity, so that the structural strength between the front floor lower cross beam 80 and the right side of the front floor left side beam 30 and the left side of the front floor right side beam 40 can be improved, meanwhile, the front floor left side beam 30 can transmit a side impact force to the right through the front floor lower cross beam 80, the front floor right side beam 40 can transmit a side impact force to the left through the front floor lower cross beam 80, and the impact resistance of the left side and the right side of the front floor structure 100 is better improved.

In some embodiments of the present invention, the front floor structure 100 for improving the side impact performance further includes a first battery mounting bracket 4 and a second battery mounting bracket 5, the battery is detachably connected to the first battery mounting bracket 4 and the second battery mounting bracket 5, wherein the first battery mounting bracket 4 is mounted between the front floor lower beam 80 and the front floor left side beam 30, so as to reinforce the structural strength between the front floor lower beam 80 and the front floor left side beam 30 while protecting the battery, and the second battery mounting bracket 5 is mounted between the front floor lower beam 80 and the front floor right side beam 40, so as to reinforce the structural strength between the front floor lower beam 80 and the front floor right side beam 40 while protecting the battery, thereby improving the overall strength of the front floor structure 100.

The utility model discloses an in some embodiments, promote preceding floor structure 100 of side impact performance still includes left side threshold connecting plate 1 and right side threshold connecting plate 2, the both ends of left side threshold connecting plate 1 respectively with left side threshold inner panel 10, the left side wall fixed connection of left side roof beam body die cavity, the structural strength between left side threshold inner panel 10 and preceding floor left side roof beam 30 has been promoted, the both ends of right side threshold connecting plate 2 respectively with right side threshold inner panel 20, the right side wall fixed connection of right side roof beam body die cavity, the structural strength between right side threshold inner panel 20 and preceding floor right side roof beam 40 has been promoted, and simultaneously, left side threshold inner panel 10, left side threshold connecting plate 1, preceding floor left side roof beam 30, first battery installing support 4, preceding floor bottom end rail 80, second battery installing support 5, preceding floor right side roof beam 40, right side threshold connecting plate 2 and right side threshold inner panel 20 have formed a complete preceding floor lower part power transmission passageway, preceding floor lower part passageway is in the improvement of preceding floor 100 intensity, can better transmission side impact, the left side of side preceding floor structure and the left side that alleviates preceding floor structure 100, and then the impaired ground transmission force transmission degree of security, thereby, the passenger seat structure 100 reduction degree of security.

The utility model discloses an in some embodiments, in the cross-section of perpendicular to fore-and-aft direction place straight line, preceding floor entablature 70 is for the cross-section of "nearly" style of calligraphy, can improve preceding floor entablature 70's structural strength, when receiving the side impact power to strike, effectively reduces preceding floor entablature 70's deformation degree to improve the interior personnel's of taking advantage of car security.

The present invention also provides a vehicle 200 having a front floor structure 100 that improves side impact performance.

According to the utility model discloses a vehicle 200 bumps the preceding floor structure 100 of performance through the promotion side that is provided with above-mentioned embodiment, can promote the holistic load intensity of vehicle 200 preceding floor better for when vehicle 200 takes place the side and bumps, effectively reduce preceding floor lateral part deformation degree, reduce the extrusion of vehicle 200 lateral part to the car in, better promotion vehicle 200's security performance.

Other constructions and operations of the front floor structure 100 for improving side impact performance according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A front floor structure for improving side impact performance, comprising: a front floor, a left side sill inner plate (10), a right side sill inner plate (20), a left side sill (30), a right side sill (40), a left side sill reinforcing plate (50), a right side sill reinforcing plate (60) and an upper cross beam (70) which are fixedly connected with the front floor,

the front floor left side beam (30) is arranged on the lower side surface of the front floor, and the front floor left side beam reinforcing plate (50) is opposite to the front floor left side beam (30) in the vertical direction, is arranged on the upper side surface of the front floor, and at least partially extends towards the left side to be fixedly connected with the left side sill inner plate (10);

the front floor right side beam (40) is arranged on the lower side surface of the front floor, and the front floor right side beam reinforcing plate (60) is vertically opposite to the front floor right side beam (40), is arranged on the upper side surface of the front floor, and at least partially extends towards the right side to be fixedly connected with the right side sill inner plate (20);

the front floor upper cross member (70) is connected between the front floor left side rail reinforcement panel (50) and the front floor right side rail reinforcement panel (60).

2. The front floor structure (100) for improving side impact performance according to claim 1,

the front floor left side rail reinforcing plate (50) comprises a first main plate (51) and a first auxiliary plate (52) which are integrally formed, wherein the first main plate (51) extends along the front-back direction and is vertically opposite to the front floor left side rail (30), and the first auxiliary plate (52) extends towards the left side to be fixedly connected with the left side sill inner plate (10);

the front floor right side member reinforcing plate (60) comprises a second main plate (61) and a second auxiliary plate (62) which are integrally formed, the second main plate (61) extends along the front-rear direction and is vertically opposite to the front floor right side member (40), and the second auxiliary plate (62) extends towards the right side to be fixedly connected with the right side sill inner plate (20).

3. The front floor structure (100) for improving side impact performance according to claim 2, wherein the left and right ends of the front floor upper beam (70) extend to the first sub-plate (52) and the second sub-plate (62), respectively, to be fixedly connected with the first sub-plate (52) and the second sub-plate (62).

4. The front floor structure (100) for improving side impact performance according to claim 1, wherein the front floor structure (100) further comprises: a left side beam support plate (3) and a right side beam support plate (6),

the left side beam (30) of the front floor is provided with a left beam body cavity with an upward opening, the left side beam support plate (3) is positioned in the left beam body cavity, and the left end and the right end of the left side beam support plate are respectively fixedly connected with the left side wall and the right side wall of the left beam body cavity;

the front floor right side beam (40) is provided with a right beam body cavity with an upward opening, the right side beam support plate (6) is positioned in the right beam body cavity, and the right end of the right side beam support plate are fixedly connected with the right side wall and the right side wall of the right beam body cavity respectively.

5. The front floor structure (100) for improving side impact performance according to claim 4, wherein the left side frame support plate (3) and the right side frame support plate (6) each have a cross section in a shape of a letter "ji" in a cross section perpendicular to a straight line in a left-right direction.

6. The front floor structure (100) for improving side impact performance according to claim 4, further comprising: and two ends of the front floor lower beam (80) are respectively and fixedly connected with the right side wall of the left beam body cavity and the left side wall of the right beam body cavity.

7. The front floor structure (100) for improving side impact performance according to claim 6, further comprising: a first battery mounting bracket (4) and a second battery mounting bracket (5), wherein a battery is detachably connected with the first battery mounting bracket (4) and the second battery mounting bracket (5), wherein the first battery mounting bracket (4) is mounted between the front floor lower beam (80) and the front floor left side beam (30), and the second battery mounting bracket (5) is mounted between the front floor lower beam (80) and the front floor right side beam (40).

8. The front floor structure (100) for improving side impact performance according to claim 4, further comprising:

the two ends of the left side threshold connecting plate (1) are respectively fixedly connected with the left side threshold inner plate (10) and the left side wall of the left beam body cavity;

and the two ends of the right side threshold connecting plate (2) are respectively fixedly connected with the right side threshold inner plate (20) and the right side wall of the right beam body cavity.

9. The front floor structure (100) for improving side impact performance according to claim 1, wherein the front floor upper beam (70) has a cross section in a shape of a Chinese character ji in a cross section perpendicular to a straight line in a front-rear direction.

10. A vehicle (200) characterized by comprising a front floor structure (100) according to any one of claims 1-9.