CN222572396U - Rear floor assembly and vehicle - Google Patents
Rear floor assembly and vehicle Download PDFInfo
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- CN222572396U CN222572396U CN202420647704.7U CN202420647704U CN222572396U CN 222572396 U CN222572396 U CN 222572396U CN 202420647704 U CN202420647704 U CN 202420647704U CN 222572396 U CN222572396 U CN 222572396U
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- rear floor
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- longitudinal beam
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Abstract
The utility model discloses a rear floor assembly and a vehicle, wherein the rear floor assembly comprises structural members which are formed by die casting and are bent along the height direction, a beam assembly which is fixedly connected between the two rear floor longitudinal members and comprises beams which are arranged along the length direction of a vehicle body and are of extruded aluminum profile structures, a force transmission rib is arranged on one side, close to the beam assembly, of the rear floor longitudinal member along the width direction, the force transmission direction of the force transmission rib extends from a first end to a second end, and a panel assembly comprises at least two panels which are distributed along the length direction of the vehicle body, and the adjacent panels are connected through the beams. The weight of the rear floor can be reduced while the supporting strength of the rear floor can be ensured by changing the materials of the rear floor longitudinal beam and the cross beam, and the side, close to the cross beam, of the rear floor longitudinal beam is provided with the force transmission rib so as to transmit the pressure of the cross beam received by the first end of the rear floor longitudinal beam to the second end of the rear floor longitudinal beam through the guide of the force transmission rib, so that the stress is dispersed, and the bearing capacity of the rear floor longitudinal beam is improved.
Description
Technical Field
The utility model relates to the technical field of vehicle floors, in particular to a rear floor assembly and a vehicle.
Background
With the development of new energy automobiles, the requirements on automobile bodies are higher and higher as the future industry trend, with the development of steel-aluminum hybrid welding automobile bodies, the dead weight of the white automobile bodies can be greatly lightened by adopting aluminum alloy to replace steel materials, so that the battery consumption is reduced, the requirements of the new energy automobile field on light aluminum alloy integrated parts are continuously expanded, and the aluminum parts are gradually applied to automobile body structures in combination with the development of automobile body materials.
The floor of a vehicle generally includes a front floor and a rear floor along the length of a vehicle body. The front floor and the rear floor are connected to form a floor foundation for the entire vehicle.
Because the battery system is newly added in the electric automobile, the weight of the whole automobile is greatly increased compared with that of the traditional fuel oil automobile, so that the load borne by the automobile body is larger and larger, and the requirement on the structure of the automobile body is higher and higher.
Therefore, how to provide a rear floor assembly of a vehicle, which improves the supporting strength, is a technical problem to be solved by those skilled in the art.
Disclosure of utility model
In view of the above, the present utility model provides a rear floor assembly of a vehicle, which improves support strength. In addition, the utility model also provides a vehicle with the rear floor assembly.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A rear floor assembly, comprising:
The rear floor longitudinal beams are arranged in the width direction of the vehicle body, one end of each rear floor longitudinal beam is used for being connected with the front floor longitudinal beam, the other end of each rear floor longitudinal beam is used for being connected with the rear anti-collision beam, and the number of the rear floor longitudinal beams is two; the rear floor longitudinal beam is a structural member which is formed by die casting and is bent along the height direction;
the rear floor longitudinal beam is provided with a force transmission rib on one side which is close to the beam assembly along the width direction, the force transmission direction of the force transmission rib extends from a first end to a second end, the first end of the rear floor longitudinal beam is one end which is used for being connected with the beam assembly in the height direction, and the second end of the rear floor longitudinal beam is the other end of the rear floor longitudinal beam in the height direction;
The panel assembly comprises at least two panels distributed along the length direction of the vehicle body, and the adjacent panels are connected through the cross beam.
Preferably, in the above rear floor assembly, one end of the rear floor side member is connected to the front floor side member through a rear section of the threshold beam.
Preferably, in the above rear floor assembly, the other end of the rear floor longitudinal beam is connected to the rear anti-collision beam through a rear section of the rear floor longitudinal beam, and the rear section of the rear floor longitudinal beam is an extruded aluminum structural member.
Preferably, in the rear floor assembly, the rear section of the rear floor longitudinal beam is connected with the rear floor longitudinal beam in a plugging manner, and is fixedly connected by adopting a flow drilling screw.
Preferably, in the rear floor assembly, a flange is provided on a side of the rear floor longitudinal beam, which is close to the beam assembly, and the beam assembly is connected to the flange by adopting a flow drilling screw connection, a self-piercing riveting or a rivet pulling process;
And/or the number of the groups of groups,
The panel assembly is connected to the flanging by adopting a flow drilling screw connection, self-piercing riveting or rivet pulling process.
Preferably, in the rear floor assembly, the flange has a U-shaped structure, the cross beam is overlapped with the U-shaped structure, and the cross beam is fixed at the U-shaped structure.
Preferably, in the rear floor assembly, the U-shaped structure includes a U-shaped groove and a U-shaped boss;
The cross beam comprises a middle cross beam and a rear cross beam which are sequentially arranged along the length direction of the vehicle body, the middle cross beam is provided with a first U-shaped overlap surface matched with the U-shaped boss, and the first U-shaped overlap surface is connected with the flanging and the U-shaped boss;
The rear cross beam is provided with a second U-shaped overlap surface matched with the U-shaped groove, and the second U-shaped overlap surface is connected with the flanging and the inner wall of the U-shaped groove.
Preferably, in the rear floor assembly, the rear floor longitudinal beam is provided with a reinforcing rib group along one side of the vehicle body width direction away from the beam assembly, the reinforcing rib group comprises a first reinforcing rib and a second reinforcing rib which are intersected at the middle position, and the first reinforcing rib and the second reinforcing rib are obliquely arranged along the height direction of the vehicle body.
Preferably, in the rear floor assembly, the rear floor longitudinal beam is die-cast with a front mounting point of the auxiliary frame and a rear mounting point of the auxiliary frame, and is integrated with a damping spring mounting point and a damper mounting point.
A vehicle comprising a rear floor assembly, wherein the rear floor assembly is any one of the above.
The embodiment of the utility model discloses a rear floor assembly of a vehicle, wherein a rear floor longitudinal beam is an aluminum alloy die casting, a cross beam of a cross beam assembly is an extruded aluminum profile structural member, the support strength of the rear floor can be ensured by changing the materials of the rear floor longitudinal beam and the cross beam, the weight of the rear floor is reduced, and a force transmission rib is arranged on one side of the rear floor longitudinal beam, which is close to the cross beam, so that the pressure of the cross beam received by the first end of the rear floor longitudinal beam is transmitted to the second end of the rear floor longitudinal beam through the guide of the force transmission rib, the stress is dispersed, the bearing capacity of the rear floor longitudinal beam is improved, and the support strength is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top view of a rear floor assembly disclosed in an embodiment of the utility model;
FIG. 2 is a schematic view of a first directional structure of a rear floor assembly disclosed in an embodiment of the utility model;
FIG. 3 is a schematic view of a second directional structure of the rear floor assembly disclosed in the embodiment of the utility model;
FIG. 4 is a third directional schematic view of a rear floor assembly disclosed in an embodiment of the utility model;
FIG. 5 is a bottom view of the rear floor assembly disclosed in an embodiment of the utility model;
FIG. 6 is a fourth directional schematic view of a rear floor assembly disclosed in an embodiment of the utility model;
FIG. 7 is a schematic view of the rear floor stringer to center cross member connection of the rear floor assembly disclosed in the embodiments of the utility model;
Fig. 8 is a back view of a rear floor stringer as disclosed in an embodiment of the present utility model.
Detailed Description
The utility model discloses a rear floor assembly of a vehicle, which improves supporting strength. In addition, the utility model also discloses a vehicle with the rear floor assembly.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms "first" and "second" are used below 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
As shown in fig. 1 to 6, a rear floor assembly of a vehicle is disclosed in the present application, which includes a rear floor stringer 4, a cross member assembly, and a panel assembly.
One end of the rear floor side member 4 is used for being connected with a front floor side member (not shown in the figure), the other end is used for being connected with a rear anti-collision beam, and the number of the rear floor side members 4 is two and is arranged along the width direction of the vehicle body; the rear floor side member 4 is a structural member which is formed by die casting and is bent in the height direction. In some embodiments, the rear floor stringer 4 is an aluminum alloy die cast.
The beam assembly is fixedly connected between the two rear floor longitudinal beams 4, the beam assembly comprises beams which are arranged along the length direction of the vehicle body and are of extruded aluminum profile structures, a force transmission rib 41 is arranged on one side, close to the beam assembly, of the rear floor longitudinal beam 4 along the width direction, the force transmission direction of the force transmission rib 41 extends from a first end to a second end, the first end of the rear floor longitudinal beam 4 is one end, in the height direction, for connecting the beam assembly, and the second end is the other end, in the height direction, of the rear floor longitudinal beam 4.
The panel assembly includes at least two panels distributed along a length direction of the vehicle body, and adjacent panels are connected by a cross member.
The rear floor longitudinal beam 4 is an aluminum alloy die casting, the cross beam of the cross beam assembly is an extruded aluminum profile structural member, the weight of the rear floor is reduced while the supporting strength of the rear floor is ensured by changing the materials of the rear floor longitudinal beam 4 and the cross beam, and the side, close to the cross beam, of the rear floor longitudinal beam 4 is provided with a force transmission rib 41 so as to transmit the pressure of the cross beam received by the first end of the rear floor longitudinal beam 4 to the second end of the rear floor longitudinal beam 4 through the guide of the force transmission rib 41, so that the stress is dispersed, and the bearing capacity of the rear floor longitudinal beam 4 is improved.
The rear floor assembly shown in connection with fig. 1 and 2 also comprises a sill beam rear section 1, a rear floor rail rear section 9 and a wheel cover inner panel 5, the cross member assembly comprising a front cross member assembly 2, a center cross member 6 and a rear cross member 8, and the panel assembly comprising a center floor panel 3 and a rear floor panel 7.
Wherein, along the length direction of the vehicle body, i.e. the extending direction from the front floor to the rear floor, the front beam assembly 2, the middle floor panel 3, the middle beam 6, the rear floor panel 7 and the rear beam 8 are connected in sequence.
One end of the rear floor longitudinal beam 4 is connected with the rear section 1 of the threshold beam, and the other end is connected with the rear section 9 of the rear floor longitudinal beam.
The rear floor stringer 4, the rear floor stringer rear section 9 and the wheel cover inner panel 5 are arranged on both sides of the cross beam.
Specifically, the one end of the back section 1 of the threshold beam is connected with one end of the back floor longitudinal beam 4, and the other end is used for connecting the front floor longitudinal beam, so that the connection between the front floor longitudinal beam and the back floor longitudinal beam 4 of the vehicle floor is realized. The connection of the sill beam rear section 1 with the rear floor rail 4 and the front floor rail protects, but is not limited to, welding.
The structure of the rear section 1 of the threshold beam can be set according to different requirements and is in a protective range.
Referring to fig. 2, the front cross member assembly 2 includes a front cross member 21 and a cross member reinforcement plate 22. Wherein, front cross member 21 and crossbeam reinforcing plate 22 are arranged along the thickness direction of the rear floor assembly of vehicle to form the accommodation chamber between the two, reduce weight when guaranteeing front cross member intensity.
In some embodiments, the front cross beam 21 is a steel or aluminum stamping and the cross beam stiffener 22 includes, but is not limited to, a sheet metal part.
Along the length direction of the vehicle body, i.e., the extending direction of the front floor to the rear floor, the center floor panel 3 is connected to the front cross member assembly 2 on one side and to the center cross member 6 on the other side.
The shape and size of the mid-floor panel 3 may be set according to the requirements of the floor panel of the vehicle, and in some embodiments, the mid-floor panel 3 includes, but is not limited to, a sheet metal part.
In some embodiments, the middle cross member 6 is a space three-dimensional structure, and the height difference of the middle cross member 6 along the height direction can be set according to different needs, which is not particularly limited herein. The shape and size of the middle cross member 6 can be set according to different needs and are all within the scope of protection.
The shape and size of the rear floor panel 7 can be set according to different needs, and one side of the rear floor panel 7 is connected to the side of the center cross member 6 remote from the center floor panel 3.
The rear floor panel 7 is of a spatial three-dimensional structure, i.e. the rear floor panel 7 is bent in height, and the rear cross member 8 is connected to the middle position of the rear floor panel 7. The rear floor panel 7 may be connected in two stages, and the two stages are connected by the rear cross member 8 to improve the strength of the rear floor panel 7.
In some embodiments, the rear floor panel 7 includes, but is not limited to, a sheet metal part.
The shape, size and arrangement position of the rear cross member 8 can be set according to different requirements and are all within the protection range.
The connection means of the front beam assembly 2 to the middle floor panel 3, the middle floor panel 3 to the middle beam 6, the middle beam 6 to the rear floor panel 7, the rear floor panel 7 to the rear beam 8 include, but are not limited to, screw connections.
Two sides of the front cross member assembly 2, the middle floor panel 3, the middle cross member 6, the rear floor panel 7 and the rear cross member 8 are respectively connected to one rear floor side member 4 in the vehicle body width direction.
In some embodiments, the rear floor rail 4 is a die cast part that can be used in a die casting process to increase the rigidity of the vehicle body. The rear section 9 of the rear floor longitudinal beam is an extruded aluminum structural member, so that the rear collision energy absorption can be ensured, and the safety of the rear collision of the automobile body can be realized.
Referring to fig. 7, the rear floor stringer 4 and the rear floor stringer rear section 9 in the present application are connected by plugging, that is, the rear floor stringer 4 has a cavity, and the rear floor stringer rear section 9 is inserted into the cavity of the rear floor stringer 4 and connected by using a Flow DRILL SCREW (FDS for short).
The rear floor rail 4 disclosed in the present application is a die casting, and in the die casting process, a sub-frame front mounting point, a sub-frame rear mounting point, and a damper spring mounting point and a damper mounting point are integrated on the rear floor rail 4 to promote the mounting point rigidity.
The problems that the metal plate is difficult to form due to the fact that the installation point of the rear auxiliary frame and the installation point of the damping spring fall are large due to arrangement factors can be avoided by adopting the die casting process.
It should be noted that, for the front sub-frame mounting point, the rear sub-frame mounting point, the damper spring mounting point, and the damper mounting point, the positions and shapes may be set according to different needs and all within the protective range.
In the embodiment shown in connection with fig. 7, the middle cross member 6 and the rear cross member 8 are connected to the rear floor stringers 4, respectively, by means of, but not limited to, FDS, self-piercing riveting (Self-PIERCING RIVET, SPR for short) or a hand-riveting process.
It should be noted that the flow drilling screw connection is also called self-tapping screw connection or hot-melt self-tapping connection.
The rear floor stringers 4 are attached to the center floor panel 3, the front cross member assembly 2, the wheel cover inner panel 5 in a manner that includes, but is not limited to, using an FDS, SPR or hand rivet process.
The wheel cover inner plate 5 is provided to cover the wheel position, and the shape and size of the wheel cover inner plate 5 are not particularly limited.
As shown in fig. 7, the rear floor side member 4 has a power transmission rib 41 and a flange 42.
The force transmission ribs 41 are sheet metal parts tapering from the first end of the rear floor rail 4 to the second end. The number of the force transmission ribs 41 can be set according to different requirements, alternatively, the force transmission ribs 41 are multiple, and the length of the force transmission ribs 41 is gradually increased from the force transmission rib at the middle position to the direction of the force transmission ribs 41 at the two side positions.
The flange 42 is located on a side of the first end of the rear floor rail 4 adjacent to the cross member, and the shape and size of the flange 42 may be set according to the configuration of the rear floor rail 4 and the panel and cross member to be installed, which is not particularly limited herein.
The panel and the cross member are mounted on the flange 42.
In some embodiments, to ensure stability of the mounting of the beam, the flange 42 is provided with a U-shaped structure, the beam is overlapped with the U-shaped structure, and the beam is fixed at the U-shaped structure.
According to the application, the U-shaped structure is arranged on the flange 42, so that mounting points are arranged at different heights of the cross beam in the height direction, the multi-point mounting of the cross beam in the circumferential direction is realized, and the mounting stability is realized.
In some embodiments, the U-shaped structure includes a U-shaped groove 421 and a U-shaped boss.
The middle cross beam 6 is provided with a first U-shaped lap surface matched with the U-shaped boss, the first U-shaped lap surface is connected with the flanging 42 and the U-shaped boss, the rear cross beam 8 is provided with a second U-shaped lap surface matched with the U-shaped groove 421, and the second U-shaped lap surface is connected with the flanging 42 and the inner wall of the U-shaped groove 421.
In some embodiments, the U-shaped structure can also be a step structure, and the U-shaped structure comprises but is not limited to two steps, and the cross beams are connected on step surfaces with different heights.
The type of the U-shaped structure can be set according to the shape of the cross beam and is in the protection range.
As shown in fig. 8, the rear floor side member 4 is provided with a bead group 43 on a side thereof away from the cross member assembly in the vehicle body width direction, and the bead group 43 includes a first bead 431, a second bead 432, and a third bead 433.
Wherein, the intermediate positions of the first reinforcing rib 431 and the second reinforcing rib 432 intersect and are all obliquely arranged along the height direction of the vehicle body, so that the first reinforcing rib 431 and the second reinforcing rib 432 form an X-shaped structure. The plurality of first and second reinforcing ribs 431 and 432 are arranged in the height direction, thereby forming a diamond-shaped structure in the height direction.
The third reinforcing bars 433 are arranged in the height direction and are connected to the first reinforcing bars 431 and/or the second reinforcing bars 432.
It should be noted that the shape of the stiffener group 43 needs to be set according to the shape of the rear floor rail 4, including, but not limited to, a manner of having half the first stiffener 431 and the second stiffener 432.
In addition, the application also discloses a vehicle comprising the rear floor assembly, wherein the rear floor assembly is the rear floor assembly disclosed in the embodiment, so that the vehicle with the rear floor assembly has all the technical effects described above and is not repeated herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A rear floor assembly, comprising:
The rear floor longitudinal beams are arranged in the width direction of the vehicle body, one end of each rear floor longitudinal beam is used for being connected with the front floor longitudinal beam, the other end of each rear floor longitudinal beam is used for being connected with the rear anti-collision beam, and the number of the rear floor longitudinal beams is two; the rear floor longitudinal beam is a structural member which is formed by die casting and is bent along the height direction;
the rear floor longitudinal beam is provided with a force transmission rib on one side which is close to the beam assembly along the width direction, the force transmission direction of the force transmission rib extends from a first end to a second end, the first end of the rear floor longitudinal beam is one end which is used for being connected with the beam assembly in the height direction, and the second end of the rear floor longitudinal beam is the other end of the rear floor longitudinal beam in the height direction;
The panel assembly comprises at least two panels distributed along the length direction of the vehicle body, and the adjacent panels are connected through the cross beam.
2. The rear floor assembly of claim 1, wherein one end of the rear floor rail is connected to the front floor rail by a sill beam rear section.
3. The rear floor assembly of claim 1, wherein the other end of the rear floor rail is connected to the rear impact beam by a rear floor rail rear section that is an extruded aluminum structural member.
4. A rear floor assembly according to claim 3, wherein the rear floor stringer rear section is connected to the rear floor stringer by a plug connection and secured by means of a drill screw connection.
5. The rear floor assembly of any one of claims 1 to 4, wherein a side of the rear floor stringer adjacent the cross member assembly has a flange to which the cross member assembly is attached using a flow drilling screw connection, a self-piercing riveting or a hand-staking process;
And/or the number of the groups of groups,
The panel assembly is connected to the flanging by adopting a flow drilling screw connection, self-piercing riveting or rivet pulling process.
6. The rear floor assembly of claim 5, wherein the flange has a U-shaped configuration, the cross member overlaps the U-shaped configuration, and the cross member is secured to the U-shaped configuration.
7. The rear floor assembly of claim 6, wherein the U-shaped structure comprises a U-shaped groove and a U-shaped boss;
The cross beam comprises a middle cross beam and a rear cross beam which are sequentially arranged along the length direction of the vehicle body, the middle cross beam is provided with a first U-shaped overlap surface matched with the U-shaped boss, and the first U-shaped overlap surface is connected with the flanging and the U-shaped boss;
The rear cross beam is provided with a second U-shaped overlap surface matched with the U-shaped groove, and the second U-shaped overlap surface is connected with the flanging and the inner wall of the U-shaped groove.
8. The rear floor assembly according to any one of claims 1 to 4, wherein a side of the rear floor side member away from the cross member assembly in the vehicle body width direction is provided with a bead group including first and second beads intersecting at intermediate positions, the first and second beads being each arranged obliquely in the height direction of the vehicle body.
9. The rear floor assembly of any one of claims 1 to 4, wherein said rear floor rail is die cast with a subframe front mounting point and a subframe rear mounting point and is integrated with a shock absorbing spring mounting point and a shock absorber mounting point.
10. A vehicle comprising a rear floor assembly, wherein the rear floor assembly is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420647704.7U CN222572396U (en) | 2024-03-29 | 2024-03-29 | Rear floor assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420647704.7U CN222572396U (en) | 2024-03-29 | 2024-03-29 | Rear floor assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222572396U true CN222572396U (en) | 2025-03-07 |
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ID=94789389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420647704.7U Active CN222572396U (en) | 2024-03-29 | 2024-03-29 | Rear floor assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222572396U (en) |
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2024
- 2024-03-29 CN CN202420647704.7U patent/CN222572396U/en active Active
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