CN218112796U - Rear floor frame structure and vehicle - Google Patents

Abstract

The utility model discloses a back floor frame construction and vehicle, back floor frame construction includes the back floor skeleton and installs in the back floor assembly of back floor skeleton, back floor skeleton includes back floor skeleton sub-assembly and connects in the back shroud assembly of back floor skeleton sub-assembly rear side, back floor skeleton sub-assembly includes about two relative first back longerons that set up and just connect the back floor crossbeam between two first back longerons for a plurality of along the preceding rear direction interval, back shroud assembly includes the back shroud crossbeam, two connect in the back shroud crossbeam and respectively with the second back longeron that the rear end of two first back longerons links to each other and be connected the back shroud on the back shroud crossbeam. According to the utility model discloses back floor frame construction can reduce the quantity of the welding point on the assembly line, improves the production efficiency of the assembly line of vehicle, improves the production efficiency of whole car.

Description

Rear floor frame structure and vehicle

technical field

The utility model relates to the field of vehicles, in particular to a rear floor frame structure and a vehicle.

Background technique

In the related art, the rear floor frame structure includes a rear floor frame, a rear floor assembly and a rear panel assembly, and the rear floor frame includes two rear longitudinal beams arranged at intervals on the left and right and a plurality of cross beams arranged along the front and rear directions. When the vehicle is assembled, the rear floor assembly is welded to the rear floor frame on the final assembly line, and then the rear panel assembly is welded together with the rearmost side beam and two rear longitudinal beams of the rear floor frame.

However, this assembly method will lead to more solder joints on the final assembly line, and the production efficiency of the final assembly line is low. Especially between the rear panel assembly and the last side beam of the rear floor frame, since the rear panel assembly and the last side beam are connected through the surface and the cavity, the gap between the rear panel assembly and the last side beam The matching length along the left and right directions is longer, and there are many welding spots between the rear panel assembly and the last side beam. It is time-consuming to weld the rear panel assembly and the last side beam, and it has a great impact on the production efficiency of the final assembly line.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to propose a rear floor frame structure, which can reduce welding on the assembly line under the condition of ensuring the connection strength between the rear panel, the rear panel cross member and the second rear longitudinal beam. The number of points can improve the production efficiency of the final assembly line of the vehicle and the production efficiency of the whole vehicle.

The utility model also proposes a vehicle with the above-mentioned rear floor frame structure.

The rear floor frame structure according to the embodiment of the first aspect of the present utility model includes: a rear floor frame, the rear floor frame includes a rear floor frame subassembly and a rear panel assembly, and the rear panel assembly is connected to the Describe the rear side of the rear floor frame subassembly, the rear floor frame subassembly includes a first rear longitudinal beam and a rear floor crossbeam, the first rear longitudinal beams are two oppositely arranged left and right, and the rear floor crossbeam There are a plurality of them arranged at intervals along the front-to-rear direction, the rear floor beam is connected between the two first rear longitudinal beams, and the rear panel assembly includes a rear panel, a second rear longitudinal beam and a rear panel Cross beam, the rear wall beam is connected to the lower end of the rear wall, the second rear longitudinal beams are two left and right opposite, and the rear ends of the two second rear longitudinal beams are connected to the The rear wall beam, the front ends of the two second rear longitudinal beams are respectively connected with the rear ends of the two first rear longitudinal beams, so as to assemble and connect the rear wall panel assembly and the rear floor frame subassembly into; the rear floor assembly, the rear floor assembly is installed on the rear floor frame and connected to the rear floor frame sub-assembly and the second rear longitudinal beam.

According to the rear floor frame structure of the embodiment of the present invention, by setting the second rear longitudinal beam, the rear panel, the second rear longitudinal beam and the rear panel crossbeam are integrated into the rear panel assembly, which passes through the second The rear longitudinal beam connects the rear panel assembly to the rear floor frame sub-assembly, which can reduce the welding on the assembly line under the condition of ensuring the connection strength between the rear panel, the rear panel cross member and the second rear longitudinal beam The number of points can improve the production efficiency of the final assembly line of the vehicle and the production efficiency of the whole vehicle.

According to some embodiments of the present invention, the first rear longitudinal beam includes a first rear beam body and first connecting flanges connected to the left and right sides of the first rear beam body, and the first rear beam body defines a The matching groove, the second rear longitudinal beam includes a second rear beam main body and second connecting flanges connected to the left and right sides of the second rear beam main body, and the front end of the second rear beam main body is accommodated in the matching groove , the second connecting flange is superimposed on the upper surface of the first connecting flange.

In some embodiments of the present utility model, there is a first cavity inside the rear panel, the rear panel cross member has a second cavity, and the second cavity is located below the first cavity.

In some embodiments of the present invention, the lower side of the first cavity is open, the upper side of the second cavity is open, and the first cavity and the second cavity communicate through the open side.

According to some embodiments of the present utility model, the length of the first rear longitudinal beam is greater than the length of the second rear longitudinal beam; and/or, the cross-sectional area of the first rear longitudinal beam is greater than that of the second rear longitudinal beam The cross-sectional area of the stringer.

According to some embodiments of the present utility model, the rear floor assembly has a battery mounting portion for mounting a battery, and the battery mounting portion is adjacent to a connection position of the first rear longitudinal beam and the second rear longitudinal beam.

In some embodiments of the present utility model, the plurality of rear floor beams include a first rear floor beam, a second rear floor beam, a third rear floor beam and a fourth rear floor beam arranged sequentially from front to back, The left and right ends of the first rear floor beam have fuel tank installation points, the left and right ends of the second rear floor beam have trailing arm installation points, the left and right ends of the third rear floor beam and the fourth rear floor beam There are subframe mounting points at both the left and right ends of the .

In some embodiments of the present invention, the first rear floor cross member and the second rear floor cross member have second row seat mounting points, and the third rear floor cross member and the fourth rear floor cross member have Third row seat mounting points.

In some embodiments of the present utility model, the distance between the first rear floor beam and the second rear floor beam is 385-415 mm, and the second rear floor beam and the third rear floor beam The distance between the third rear floor beam and the fourth rear floor beam is in the range of 290-310mm, the distance between the third rear floor beam and the fourth rear floor beam is 328-352mm, and the distance between the fourth rear floor beam and the rear panel beam The distance between them ranges from 545 to 585mm.

According to some optional embodiments of the present utility model, the rear part of the rear floor is recessed downward to form a storage pit.

According to some optional embodiments of the present utility model, the rear floor frame subassembly further includes a sliding door sill connected to the first rear longitudinal beam, and the distance between the sliding door stop of the sliding door sill is The ground height is not higher than 275mm, and the height of the sliding door sill trim of the sliding door sill is not higher than 353mm from the ground.

According to some optional embodiments of the present utility model, the rear wall assembly further includes a tailgate sill trim, the tailgate sill trim is arranged on the rear wall and forms a tailgate with the rear wall, The height from the ground of the tailgate sill stop of the rear panel is not higher than 632mm, and the height from the ground of the tailgate sill trim of the tailgate is not higher than 680mm.

The vehicle according to the embodiment of the second aspect of the utility model includes: the rear floor frame structure according to the embodiment of the above first aspect of the utility model.

According to the vehicle of the embodiment of the present invention, by setting the above-mentioned rear floor frame structure, the production efficiency of the final assembly line of the vehicle can be improved, and the production efficiency of the whole vehicle can be improved.

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

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a perspective view of a rear floor frame structure according to some embodiments of the present invention;

Figure 2 is an enlarged view of a part of the rear floor frame structure in Figure 1;

Fig. 3 is a top view of the rear floor frame structure in Fig. 1;

Fig. 4 is a schematic cross-sectional view of the rear floor frame structure in Fig. 1;

Fig. 5 is a bottom view of the rear floor frame structure in Fig. 1;

Figure 6 is an enlarged view of a part of the rear floor frame structure in Figure 5;

Fig. 7 is a structural schematic diagram of another part of the rear floor frame structure in Fig. 5;

Figure 8 is a perspective view of the rear floor frame in Figure 5;

Fig. 9 is an exploded view of the rear floor frame in Fig. 8;

Fig. 10 is a perspective view of the rear floor frame subassembly in Fig. 5;

Fig. 11 is a perspective view of the rear panel assembly in Fig. 5;

Figure 12 is a side view of the tailgate assembly in Figure 11;

Fig. 13 is a schematic cross-sectional view of the rear panel assembly in Fig. 11;

Fig. 14 is a structural schematic diagram of a partial structure of the side sill in Fig. 1;

Fig. 15 is a schematic cross-sectional view of the side sill in Fig. 1;

Figure 16 is a top view of the middle floor in Figure 1;

FIG. 17 is a top view of the rear floor in FIG. 1 .

Reference signs:

100. Rear floor frame structure;

10. Rear floor frame;

1. Rear floor frame subassembly;

11. The first rear longitudinal beam; 111. The main body of the first rear beam; 112. The first connection flange; 113. The matching groove; 114. The installation point of the fuel tank; 115. The installation point of the trailing arm; 116. The installation point of the sub-frame;

121. The first rear floor beam; 122. The second rear floor beam; 123. The third rear floor beam; 124. The fourth rear floor beam;

13. Sliding door sill; 131. Sliding door stop; 132. Sliding sill trim;

2. Rear panel assembly; 21. Rear panel; 211. First cavity; 212. Tail door sill stop; 22. Second rear longitudinal beam; 221. Second rear beam main body; 222. Second connection flange ; 223, structural groove; 23, rear wall beam; 231, second cavity; 24, tail door sill trim; 25, rear anti-collision beam;

20. Rear floor assembly;

3. Rear floor; 31. Battery installation department; 32. Storage pit;

4. Middle floor.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

The rear floor frame structure 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

Referring to Fig. 1-Fig. 5, Fig. 16 and Fig. 17, the rear floor frame structure 100 according to the embodiment of the first aspect of the present invention is used for a vehicle, the vehicle also includes a front floor frame structure and an upper body structure, and the rear floor frame structure 100 is connected with the front floor frame structure, the front floor frame structure can support the front seats of the vehicle, and the rear floor frame structure 100 can be used to support the rear seats of the vehicle (when the vehicle is a three-row seat structure, the rear seat Seat refers to the second row of seats and the third row of seats), the upper body structure is supported and connected to the rear floor frame structure 100 and the front floor frame structure, the upper body structure, the rear floor frame structure 100 and the front floor frame structure are common Define the interior space of the vehicle.

The rear floor frame structure 100 includes a rear floor frame 10 and a rear floor assembly 20, the rear floor frame 10 includes a rear floor frame subassembly 1 and a rear panel assembly 2, and the rear panel assembly 2 is connected to the rear floor frame subassembly In the rear side of 1, the rear floor frame subassembly 1 includes a first rear longitudinal beam 11 and a rear floor crossbeam. One, the rear floor beam is connected between the two first rear longitudinal beams 11. Through a plurality of rear floor beams, the structural strength of the rear floor frame 10 can be made higher, so that the bending and torsion performance of the vehicle body is better, thereby ensuring the overall performance of the vehicle.

It should be explained that, in the description of the present utility model, "plurality" means two or more.

The rear wall assembly 2 includes a rear wall 21, a second rear longitudinal beam 22 and a rear wall beam 23. The rear wall beam 23 is connected to the lower end of the rear wall 21, and the second rear longitudinal beam 22 is arranged opposite to the left and right. Two, the rear ends of the two second rear longitudinal beams 22 are connected to the tail panel cross member 23, and the front ends of the two second rear longitudinal beams 22 are respectively connected to the rear ends of the two first rear longitudinal beams 11 to assemble Connect rear panel assembly 2 and rear floor frame sub-assembly 1.

The second rear longitudinal beam 22 is welded to the first rear longitudinal beam 11, the rear floor assembly 20 is installed on the rear floor frame 10, and the rear floor assembly 20 is connected to the rear floor frame sub-assembly 1 and the second rear longitudinal beam 22 . When the rear of the vehicle is hit, the rear panel assembly 2 can absorb the collision energy to ensure the personal safety of the occupants.

When assembling a vehicle, the rear floor frame subassembly 1 and the rear panel assembly 2 can be processed and formed on the sub-assembly line, and then the rear floor frame subassembly 1 and the rear panel assembly can be assembled on the vehicle assembly line. The assembly 2 is connected together, the rear floor frame 10 is spliced and formed, and then the rear floor assembly 20 is installed on the rear floor frame 10, and the rear floor frame structure 100 is spliced and formed.

The back panel 21, the second rear longitudinal beam 22 and the rear panel cross member 23 are integrated into the rear panel assembly 2, and the rear panel assembly 2 is connected to the rear floor frame through the second rear longitudinal beam 22 on the assembly line The sub-assembly 1 can reduce the number of welding points on the assembly line, improve the production efficiency of the vehicle assembly line, and improve the production efficiency of the vehicle.

On the sub-assembly line, the rear ends of the two second rear longitudinal beams 22 can be connected to the rear panel beam 23 first, and then the rear panel 21 is connected to the upper end of the rear panel beam 23, and the rear panel 21 It is welded together with the rear wall beam 23 and the second rear longitudinal beam 22, which can also ensure the connection strength between the rear wall panel 21, the rear wall beam 23 and the second rear longitudinal beam 22, and ensure that the rear floor frame structure 100 The overall strength, so as to meet the body's requirements for bending and torsion performance, to ensure the overall performance of the vehicle.

For example, the rear wall assembly 2 may also include a rear anti-collision beam 25, which is connected to the rear side of the rear wall panel 21, and the rear anti-collision beam 25 protrudes backward from the rear wall panel 21, and the rear anti-collision beam 25 The impact beam 25 protrudes backward from the rear door of the vehicle. When the rear of the vehicle is impacted, the rear anti-collision beam 25 can withstand the impact, and then transmits the impact force to the rear panel 21, and the rear panel 21 absorbs the collision energy to prevent When the rear door is hit, a large amount of collision energy is transmitted to the occupants, so that the rear panel 21 can effectively absorb the collision energy of the vehicle, ensure the personal safety of the occupants, improve the reliability of the rear panel assembly 2, and improve the safety performance of the vehicle .

For example, the rear floor assembly 20 may include a middle floor 4 and a rear floor 3, the middle floor 4 and the rear floor 3 are arranged along the front-rear direction, the middle floor 4 is connected to the rear floor frame subassembly 1, and the rear floor 3 is connected to the rear floor frame sub-assembly 1 and the second rear side member 22 . In this way, the rear floor assembly 20 can be divided into two pieces, which is convenient for manufacturing and producing the middle floor 4 and the rear floor 3, and is convenient for transferring, transporting, and assembling the middle floor 4 and the rear floor 3 in the production process, which can improve production efficiency and reduce production costs. cost.

According to some embodiments of the present invention, the second rear longitudinal beam 22 is welded to the first rear longitudinal beam 11 . The connection method of the welding connection is simple and the structure is reliable, which can improve the connection strength between the second rear longitudinal beam 22 and the first rear longitudinal beam 11, improve the structural strength of the rear floor frame 10, and improve the bending and torsion performance of the vehicle body. Moreover, the connection mode of the welding connection increases the weight of the rear floor frame 10 less, and realizes the lightweight design of the rear floor frame 10 while ensuring the structural strength of the rear floor frame 10 .

Referring to FIGS. 5-9 , according to some embodiments of the present invention, the length of the first rear longitudinal beam 11 is greater than the length of the second rear longitudinal beam 22 . The longer first rear longitudinal beam 11 can make the structural strength of the rear floor frame 10 higher, effectively ensure the overall structural strength of the vehicle body, ensure the bending and torsion performance of the vehicle body, and ensure the overall performance of the vehicle.

Referring to FIGS. 5-9 , according to some embodiments of the present invention, the cross-sectional area of the first rear longitudinal beam 11 is larger than the cross-sectional area of the second rear longitudinal beam 22 . The first rear longitudinal beam 11 with a large cross-sectional area can ensure that the rear floor frame assembly has sufficient structural strength, the overall structural strength of the vehicle body, the bending and torsion performance of the vehicle body, and the overall performance of the vehicle.

Referring to FIGS. 5-9 , according to some embodiments of the present invention, the second rear longitudinal beam 22 is overlapped with the first rear longitudinal beam 11 . In this way, it is convenient to butt the second rear longitudinal beam 22 with the first rear longitudinal beam 11, and it is convenient to assemble the rear panel assembly 2 and the rear floor frame subassembly 1 together, which can improve the assembly efficiency and improve the overall performance of the vehicle. Productivity. In the connection mode of overlapping connection, the contact area between the second rear longitudinal beam 22 and the first rear longitudinal beam 11 is relatively large, which can make the structural strength of the overlap between the second rear longitudinal beam 22 and the first rear longitudinal beam 11 higher , so that the connection between the first rear longitudinal beam 11 and the second rear longitudinal beam 22 is more reliable; moreover, the structural strength of the rear floor frame 10 can be further improved, and the bending and torsion performance of the vehicle body can be improved.

5-9, according to some embodiments of the present utility model, the first rear longitudinal beam 11 includes a first rear beam main body 111 and a first connecting flange 112, and the first connecting flange 112 is connected to the first rear beam main body 111. On the left and right sides, the first rear beam main body 111 defines a matching groove 113, and the second rear longitudinal beam 22 includes a second rear beam main body 221 and a second connecting flange 222, and the second connecting flange 222 is connected to the second rear beam main body 221. On the left and right sides, the front end of the second rear beam main body 221 is accommodated in the matching groove 113 , and the second connecting flange 222 is stacked on the upper surface of the first connecting flange 112 . The first rear beam main body 111 is welded to the second rear beam main body 221 , and the first connecting flange 112 is welded to the second connecting flange 222 .

The front end of the second rear beam main body 221 is accommodated in the matching groove 113, and the second connecting flange 222 is placed on the upper surface of the first connecting flange 112, so that the first rear longitudinal beam 11 and the second rear longitudinal beam 22 can be enlarged. The area in contact with each other improves the structural strength of the overlapped part of the second rear longitudinal beam 22 and the first rear longitudinal beam 11, so that the connection between the first rear longitudinal beam 11 and the second rear longitudinal beam 22 is more reliable; and it can Further improve the structural strength of the rear floor frame 10 and improve the bending and torsion performance of the vehicle body.

The front end of the second rear longitudinal beam 22 is accommodated in the matching groove 113 of the first rear longitudinal beam 11. The cross-sectional area of the first rear longitudinal beam 11 is larger than that of the second rear longitudinal beam 22, and the larger cross-sectional area can be Make the first rear longitudinal beam 11 have sufficient structural strength, ensure that the rear floor frame structure 100 has sufficient structural strength, ensure the overall structural strength of the vehicle body, ensure the bending and torsion performance of the vehicle body, and ensure the overall performance of the vehicle.

Referring to Fig. 4 and Fig. 13, according to some optional embodiments of the present utility model, the rear panel assembly 2 further includes a tailgate trim 24, and the tailgate trim 24 is arranged on the rear panel 21, and the rear panel 21 It forms the tail sill with the tail door sill trim 24 , the height above the ground of the tail sill seam 212 of the tail wall 21 is not higher than 632mm, and the height of the tail door sill trim 24 is not higher than 680mm. In this way, the height difference between the tailgate sill trim 24 and the rear floor assembly 20 in the up-and-down direction is small, so that the height of the tailgate sill from the ground is low, which is convenient for users to take and place luggage.

Referring to FIG. 13 , in some embodiments of the present invention, the rear panel 21 has a first cavity 211 , the rear panel cross member 23 has a second cavity 231 , and the second cavity 231 is located at the end of the first cavity 211 . below. In this way, both the rear wall panel 21 and the rear wall panel beam 23 can have a certain energy-absorbing effect, and when the rear of the vehicle is hit, the energy-absorbing effect of the rear wall panel assembly 2 can be further improved, and the safety of the occupant can be guaranteed more effectively. Personal safety, improve the safety performance of the vehicle.

Referring to FIG. 13 , in some embodiments of the present invention, the lower side of the first cavity 211 is open, the upper side of the second cavity 231 is open, and the first cavity 211 and the second cavity 231 communicate through the open side. The cavity connection can make the rear wall 21 and the rear wall beam 23 more reliably connected together, and the rear wall assembly 2 has a larger energy-absorbing cavity, so that the rear wall assembly 2 can be more reliable. Effectively absorb the collision energy of the vehicle, further ensure the personal safety of the occupants, and improve the safety performance of the vehicle.

For example, the second rear longitudinal beam 22 is formed with a structural groove 223, and the structural groove 223 communicates with the matching groove 113 and the second cavity 231. The cavity is matched and connected, which can improve the structural strength of the rear floor frame 10, improve the bending and twisting performance of the vehicle body, and improve overall performance of the vehicle.

By setting the structural groove 223, the second rear longitudinal beam 22 can also have a certain energy-absorbing effect. When the length of the rear floor frame 10 is constant, by setting the second rear longitudinal beam 22, the second rear longitudinal beam 22 can collapse and absorb energy, increasing the space for the collapse and energy absorption of the rear panel assembly 2, so that the rear The panel assembly 2 can better absorb the collision energy of the vehicle body, more effectively ensure the personal safety of the occupants, and improve the safety performance of the vehicle.

1-3, 5-7, 16 and 17, according to some embodiments of the present invention, the rear floor assembly 20 has a battery installation part 31, and the battery installation part 31 is used to install a battery, such as a battery It can be detachably installed on the rear floor assembly 20 by fastening bolts, and the battery installation part 31 is adjacent to the connecting position of the first rear longitudinal beam 11 and the second rear longitudinal beam 22 .

The structural strength of the joint between the first rear longitudinal beam 11 and the second rear longitudinal beam 22 is high, and the deformation of the joint between the first rear longitudinal beam 11 and the second rear longitudinal beam 22 is small when the rear of the vehicle is hit. Setting the battery installation part 31 adjacent to the connecting position of the first rear longitudinal beam 11 and the second rear longitudinal beam 22 can reduce or avoid the damage to the battery caused by the collapse and energy absorption of the rear panel assembly 2, and strengthen the protection of the battery. protection, effectively ensuring the safety of the battery.

Referring to Fig. 5, Fig. 8-Fig. 10, in some embodiments of the present invention, the plurality of rear floor beams include a first rear floor beam 121, a second rear floor beam 122, a third The rear floor beam 123 and the fourth rear floor beam 124, the left and right ends of the first rear floor beam 121 have fuel tank installation points 114, the left and right ends of the second rear floor beam 122 have trailing arm installation points 115, the third rear floor beam Both the left and right ends of 123 and the left and right ends of the fourth rear floor beam 124 have subframe mounting points 116 . The fuel tank installation point 114 is used for installing the fuel tank, the trailing arm installation point 115 is used for installing and connecting the trailing arm, and the subframe mounting point 116 is used for installing and connecting the subframe.

For example, each first rear longitudinal beam 11 has a fuel tank mounting point 114, a trailing arm mounting point 115 and two subframe mounting points 116; the fuel tank mounting point 114 is opposite to the first rear floor cross member 121 in the left and right direction, and the trailing arm The point 115 is opposite to the second rear floor cross member 122 in the left-right direction, and the two sub-frame installation points 116 are respectively opposite to the third rear floor cross member 123 and the fourth rear floor cross member 124 in the left-right direction.

The part where the first rear longitudinal beam 11 is connected to the rear floor beam has high structural strength and small force deformation. The fuel tank installation point 114 is set at the left and right ends of the first rear floor beam 121, so that the fuel tank can be stabilized and reliable. ground and fixed below the rear floor frame structure 100. The trailing arm installation point 115 is arranged at the left and right ends of the second rear floor crossbeam 122, and the subframe installation point 116 is arranged at the left and right ends of the third rear floor crossbeam 123 and the left and right ends of the fourth rear floor crossbeam 124, The connection between the trailing arm and the subframe and the rear floor frame structure 100 can be made more reliable. The trailing arm and the subframe can reliably support the rear floor frame structure 100 to ensure the bending and torsion performance of the vehicle body and the overall performance of the vehicle.

By arranging fuel tank mounting points 114, trailing arm mounting points 115, and subframe mounting points 116 at the left and right ends of multiple rear floor beams, the fuel tank mounting points 114, trailing arm mounting points 115, and subframe mounting points 116 pairs can be satisfied. Structural strength requirements, reasonable layout, can ensure the structural strength of the rear floor frame structure 100, and ensure the bending and torsion performance of the vehicle; at the same time, the number of rear floor cross beams can be set less, reducing the weight of the rear floor frame structure 100, and realizing Lightweight vehicles.

Referring to Fig. 5, Fig. 8-Fig. 10, in some embodiments of the present invention, the first rear floor crossbeam 121 and the second rear floor crossbeam 122 have the second row of seat mounting points, and the second row of seat mounting points are used for For connecting and supporting the second row of seats, the third rear floor cross member 123 and the fourth rear floor cross member 124 have installation points for the third row of seats, and the third row of seat installation points are used for connecting and supporting the third row of seats. The second row of seats is installed and supported on the first rear floor crossbeam 121 and the second rear floor crossbeam 122, and the third row of seats is installed and supported on the third rear floor crossbeam 123 and the fourth rear floor crossbeam 124, which can satisfy The requirements of the second row of seats and the third row of seats on the structural strength of the rear floor frame structure 100 .

In this way, the first rear floor beam 121, the second rear floor beam 122, the third rear floor beam 123 and the fourth rear floor beam 124 can be fully utilized, so that the layout of multiple rear floor beams is more reasonable, and it is not necessary to set a separate The rear floor crossbeams supporting the second row of seats and the third row of seats make the number of rear floor crossbeams less, reduce the weight of the rear floor frame structure 100, and realize the lightweight of the vehicle.

5, 8-10, in some embodiments of the present invention, the distance between the first rear floor beam 121 and the second rear floor beam 122 ranges from 385 to 415 mm, and the second rear floor beam 122 and The distance between the third rear floor beam 123 is 290-310mm, the distance between the third rear floor beam 123 and the fourth rear floor beam 124 is 318-352mm, and the distance between the fourth rear floor beam 124 and the tail panel beam The distance between 23 ranges from 545 to 585mm.

The spacing is reasonable, which can effectively ensure the structural strength of the rear floor frame 10, meet the fuel tank installation point 114, the trailing arm installation point 115, the sub-frame installation point 116 and support the second row of seats and the third row of seats on the rear floor frame. The structural strength requirements of the structure 100 and the layout are reasonable, which can ensure the structural strength of the rear floor frame structure 100 and ensure the bending and torsion performance of the vehicle; and the number of rear floor cross beams is set less, which can realize the lightweight of the vehicle.

1-4, FIG. 16 and FIG. 17, according to some optional embodiments of the present utility model, the rear part of the rear floor assembly 20 is recessed downwards to form a storage pit 32, for example, the rear floor 3 is recessed downwards to A storage pit 32 is formed. This can increase the storage space of the vehicle, improve the space utilization rate of the vehicle, meet the user's requirements for a large storage space, and improve the overall performance of the vehicle.

Referring to Fig. 1, Fig. 3, Fig. 5, Fig. 8-Fig. 10, Fig. 14 and Fig. 15, according to some optional embodiments of the present utility model, the rear floor frame subassembly 1 further includes a sliding door sill 13, and the sliding The door sill 13 is connected to the first rear longitudinal beam 11, and the height above the ground of the sliding door stop 131 of the sliding door sill 13 is not higher than 275 mm; Higher than 353mm. A sliding track is provided between the sliding threshold decorative plate 132 and the sliding door stop 131 , and the sliding door is suitable for sliding along the sliding track.

When the user gets on the car, the user can step on the sliding threshold trim 132, and then enter the car from the sliding threshold trim 132; when the user gets off the car, the user can step on the sliding threshold trim 132 first, and then From sliding the rocker trim 132 onto the ground.

The sliding door sill trim 132 can act as a secondary pedal. When the user gets on and off the car, the sliding threshold trim 132 can provide support for the user, making it easy for the user to get on and off the car; and the height of the sliding threshold trim 132 is set to be no higher than 353mm , the height of the sliding door sill trim 132 is relatively low, which is convenient for users to get on and off the vehicle.

Set the height of the sliding door sill 131 from the ground to not higher than 275mm, set the height of the sliding door sill trim 132 to not higher than 353mm, and the height of the sliding door sill 13 is lower, so that the sliding door sill 13 can be lowered The center of gravity, lower the center of gravity of the body, improve the overall performance of the vehicle.

The vehicle according to the embodiment of the second aspect of the utility model includes: the rear floor frame structure 100 according to the embodiment of the first aspect of the utility model. For example the vehicle may be a car.

For example, where the vehicle is configured without a spare wheel, the rear portion of the rear floor assembly is recessed downward to form the storage well 32 . In this way, it is not necessary to arrange the rear floor crossbeam for hanging equipment tires, reduce the weight of the rear floor frame structure 100, realize the lightweight of the vehicle, increase the storage space of the vehicle, improve the space utilization rate of the whole vehicle, and satisfy the user's requirement for a large storage space. requirements to improve the overall performance of the vehicle.

According to the vehicle of the embodiment of the present utility model, the production efficiency of the final assembly line of the vehicle can be improved by setting the above-mentioned rear floor frame structure 100 , and the production efficiency of the whole vehicle can be improved.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations 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.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (13)

1. A rear floor frame structure, characterized in that it comprises: The rear floor frame includes a rear floor frame subassembly and a back panel assembly, the rear panel assembly is connected to the rear side of the rear floor frame subassembly, and the rear floor frame subassembly includes a first For the rear longitudinal beam and the rear floor beam, the first rear longitudinal beam is two oppositely arranged left and right, and the rear floor beams are arranged at intervals along the front and rear directions, and the rear floor beam is connected between the two first rear beams. Between a rear longitudinal beam, the rear panel assembly includes a rear panel, a second rear longitudinal beam and a rear panel crossbeam, the rear panel crossbeam is connected to the lower end of the rear panel, and the second The rear longitudinal beams are two left and right oppositely arranged, the rear ends of the two second rear longitudinal beams are connected to the rear wall beam, and the front ends of the two second rear longitudinal beams are respectively connected to the two described rear longitudinal beams. The rear end of the first rear longitudinal beam is connected to assemble and connect the rear panel assembly and the rear floor frame subassembly; A rear floor assembly, the rear floor assembly is installed on the rear floor frame and connected to the rear floor frame subassembly and the second rear longitudinal beam. 2. The rear floor frame structure according to claim 1, wherein the first rear longitudinal beam comprises a first rear beam body and first connecting flanges connected to the left and right sides of the first rear beam body, A matching groove is defined inside the first rear beam body, the second rear longitudinal beam includes a second rear beam body and second connection flanges connected to the left and right sides of the second rear beam body, and the second rear beam body The front end of the first connecting flange is accommodated in the matching groove, and the second connecting flange is superimposed on the upper surface of the first connecting flange. 3. The frame structure of the rear floor according to claim 1, characterized in that, there is a first cavity in the rear panel, the rear panel beam has a second cavity, and the second cavity is located at the below the first cavity. 4. The rear floor frame structure according to claim 3, wherein the lower side of the first cavity is open, the upper side of the second cavity is open, and the first cavity and the second cavity are The two cavities communicate through the open side. 5. The rear floor frame structure according to claim 1, characterized in that, the length of the first rear longitudinal beam is greater than the length of the second rear longitudinal beam; and/or, the length of the first rear longitudinal beam The cross-sectional area is larger than the cross-sectional area of the second rear side member. 6. The rear floor frame structure according to claim 1, wherein the rear floor assembly has a battery mounting portion for mounting a battery, and the battery mounting portion is adjacent to the first rear longitudinal member and the Connection location of the second rear longitudinal member. 7. The rear floor frame structure according to claim 1, wherein the plurality of rear floor beams comprise a first rear floor beam, a second rear floor beam, and a third rear floor beam arranged sequentially from front to back. The crossbeam and the fourth rear floor crossbeam, the left and right ends of the first rear floor crossbeam have fuel tank installation points, the left and right ends of the second rear floor crossbeam have trailing arm installation points, and the left and right ends of the third rear floor crossbeam Both ends and the left and right ends of the fourth rear floor beam have subframe mounting points. 8. The rear floor frame structure according to claim 7, wherein said first rear floor cross member and said second rear floor cross member have second row seat mounting points, said third rear floor cross member and The fourth rear floor cross member has third row seat mounting points. 9. The rear floor frame structure according to claim 7, characterized in that the distance between the first rear floor beam and the second rear floor beam is 385-415 mm, and the second rear floor beam The distance between the third rear floor beam is 290-310mm, the distance between the third rear floor beam and the fourth rear floor beam is 328-352mm, and the fourth rear floor beam The range of the distance from the rear wall beam is 545-585mm. 10. The rear floor frame structure according to any one of claims 1-9, wherein the rear portion of the rear floor is recessed downwards to form a storage pit. 11. The rear floor frame structure according to any one of claims 1-9, wherein the rear floor frame subassembly further comprises a sliding door sill connected to the first rear longitudinal beam, so The height from the ground of the sliding door stop of the sliding door sill is not higher than 275mm, and the height of the sliding door sill trim plate of the sliding door sill is not higher than 353mm. 12. The rear floor frame structure according to any one of claims 1-9, characterized in that, the rear panel assembly further includes a tailgate sill trim, and the tailgate sill trim is arranged on the rear wall and form the tailgate with the rear wall, the height of the tailgate of the rear wall from the ground is not higher than 632mm, and the height of the tailgate trim is not higher than 680mm. 13. A vehicle, characterized by comprising: the rear floor frame structure according to any one of claims 1-12.

Images