CN111232059B - Threshold beam assembly - Google Patents
Threshold beam assembly Download PDFInfo
- Publication number
- CN111232059B CN111232059B CN201811430773.8A CN201811430773A CN111232059B CN 111232059 B CN111232059 B CN 111232059B CN 201811430773 A CN201811430773 A CN 201811430773A CN 111232059 B CN111232059 B CN 111232059B
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- Prior art keywords
- plate
- threshold
- side wall
- rocker
- buffer cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
Abstract
The invention discloses a threshold beam assembly, comprising: the side wall outer plate, the side wall threshold beam, the front floor threshold beam, the threshold lower longitudinal beam outer plate and the threshold lower longitudinal beam inner plate. The side wall outer plate and the side wall threshold beam are fixed to limit a first buffer cavity between the side wall outer plate and the side wall threshold beam; the front floor threshold beam and the side wall threshold beam are fixed to limit a second buffer cavity between the front floor threshold beam and the side wall threshold beam, and the second buffer cavity is arranged on the inner side of the first buffer cavity; the outer plate of the threshold lower longitudinal beam and the inner plate of the threshold lower longitudinal beam are fixed to limit a third buffer cavity between the outer plate of the threshold lower longitudinal beam and the inner plate of the threshold lower longitudinal beam, and the third buffer cavity is arranged on the inner side of the first buffer cavity and is located on the rear side of the second buffer cavity. This threshold roof beam subassembly is through setting up multistage energy-absorbing structure, can effectively increase the energy absorption of whole threshold roof beam, and then has promoted the collision security of vehicle to guarantee passenger's the safety of taking.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a threshold beam assembly.
Background
The existing vehicle body threshold beam structure is generally a threshold cavity structure formed between a side wall threshold and a floor threshold, and has no other structures, so that the existing vehicle body threshold beam structure is a single cavity structure, is simple, has poor energy absorption effect, influences the safety and reliability of the whole vehicle, and has an improved space.
Disclosure of Invention
In view of the above, the present invention is directed to a doorsill assembly having a better energy absorption effect.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a threshold beam assembly comprising: the side wall outer plate is fixed with the side wall threshold beam to define a first buffer cavity between the side wall outer plate and the side wall threshold beam; the front floor threshold beam and the side wall threshold beam are fixed to limit the second buffer cavity between the front floor threshold beam and the side wall threshold beam, and the second buffer cavity is arranged on the inner side of the first buffer cavity; the outer plate of the threshold lower longitudinal beam and the inner plate of the threshold lower longitudinal beam are fixed to limit the third buffer cavity between the outer plate of the threshold lower longitudinal beam and the inner plate of the threshold lower longitudinal beam, and the third buffer cavity is arranged on the inner side of the first buffer cavity and is positioned on the rear side of the second buffer cavity.
Further, the third buffer cavity is flexibly connected with the first buffer cavity and the second buffer cavity.
Furthermore, a flexible suspension is arranged between the outer plate of the lower longitudinal beam of the threshold and the side wall threshold beam and the front floor threshold beam.
Furthermore, a side wall inner plate reinforcing plate is arranged in the first buffer cavity.
Further, the side wall inner panel reinforcing plate includes: the U-shaped first sub-reinforcing plate and the U-shaped second sub-reinforcing plate are distributed along the height direction of the first buffer cavity, and the opening of the first sub-reinforcing plate and the opening of the second sub-reinforcing plate face the side wall doorsill beam.
Further, first sub-reinforcing plate is located the top of second sub-reinforcing plate, the free end of the both sides wall of first sub-reinforcing plate upwards respectively, downwardly extending forms first fixed plate and second fixed plate, first fixed plate with the second fixed plate respectively with side wall threshold roof beam is fixed, the free end of the both sides wall of second sub-reinforcing plate upwards respectively, downwardly extending forms third fixed plate and fourth fixed plate, wherein, the third fixed plate with the second fixed plate extends in opposite directions and connects, the third fixed plate with side wall threshold roof beam is fixed, the fourth fixed plate presss from both sides to establish to be fixed the lower extreme of side wall planking with between the lower extreme of side wall threshold roof beam.
Furthermore, a first buffer gap is formed between the bottom wall of the first sub-reinforcing plate and the side wall outer plate, and a second buffer gap is formed between the bottom wall of the second sub-reinforcing plate and the side wall outer plate.
Furthermore, a U-shaped sill lower longitudinal beam reinforcing plate is arranged in the third buffer cavity, and an opening of the sill lower longitudinal beam reinforcing plate faces towards the sill lower longitudinal beam inner plate.
Furthermore, the free ends of the two side walls of the reinforcing plate of the sill lower longitudinal beam extend upwards and downwards to form a fifth fixing plate and a sixth fixing plate respectively, the fifth fixing plate and the sixth fixing plate are fixed with the inner plate of the sill lower longitudinal beam, and the bottom wall of the reinforcing plate of the sill lower longitudinal beam is fixed with the outer plate of the sill lower longitudinal beam.
Further, preceding floor threshold roof beam is "U" shape structure, the opening orientation of preceding floor threshold roof beam side wall threshold roof beam, the free end of the both sides wall of preceding floor threshold roof beam upwards respectively, downwardly extending forms seventh fixed plate and eighth fixed plate, the seventh fixed plate with the eighth fixed plate all with the inside wall of side wall threshold roof beam is fixed, the diapire of preceding floor threshold roof beam with preceding floor panel is connected fixedly.
Compared with the prior art, the doorsill beam assembly has the following advantages:
according to the threshold beam assembly, the multi-stage energy absorption structure is arranged, so that the energy absorption of the whole threshold beam can be effectively increased, the collision safety of a vehicle is improved, and the riding safety of passengers is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a rocker beam assembly according to an embodiment of the invention;
fig. 2 is a cross-sectional view of a rocker beam assembly according to an embodiment of the invention.
Description of reference numerals:
100-sill beam assembly, 1-side outer panel, 2-side sill beam, 3-first buffer cavity, 4-front floor sill beam, 5-second buffer cavity, 6-sill outer side rail, 7-sill inner side rail, 8-third buffer cavity, 9-side inner panel reinforcement plate, 91-first sub reinforcement plate, 92-second sub reinforcement plate, 911-first fixing plate, 912-second fixing plate, 921-third fixing plate, 922-fourth fixing plate, 93-first buffer gap, 94-second buffer gap, 10-sill reinforcing plate, 101-fifth fixing plate, 102-sixth fixing plate, 41-seventh fixing plate, 42-eighth fixing plate, 11-front floor panel.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
A rocker beam assembly 100 according to an embodiment of the invention is described below with reference to fig. 1-2.
The sill beam assembly 100 according to an embodiment of the present invention may include: the side wall structure comprises a side wall outer plate 1, a side wall threshold beam 2, a front floor threshold beam 4, a threshold lower longitudinal beam outer plate 6 and a threshold lower longitudinal beam inner plate 7.
As shown in fig. 1 and 2, the quarter outer panel 1 is fixed to the quarter rocker 2 to define a first cushion chamber 3 between the quarter outer panel 1 and the quarter rocker 2. Specifically, the side wall threshold roof beam 2 sets up in the outside of side wall planking 1, and side wall planking 1 and side wall threshold roof beam 2 welded fastening form first cushion chamber 3, and first cushion chamber 3 can play first order buffering energy-absorbing effect when the vehicle takes place the side and bumps to absorb the produced most energy of side impact.
In connection with the embodiment shown in fig. 1 and 2, the front floor rocker 4 and the side sill 2 are fixed to define a second cushion chamber 5 between the front floor rocker 4 and the side sill 2, the second cushion chamber 5 being provided inside the first cushion chamber 3. Specifically, front floor threshold roof beam 4 sets up the inboard at side wall threshold roof beam 2, and front floor threshold roof beam 4 forms second cushion chamber 5 with side wall threshold roof beam 2 welded fastening, because second cushion chamber 5 sets up the inboard at first cushion chamber 3, consequently second cushion chamber 5 can be when the vehicle takes place the side impact, and first cushion chamber 3 cushions the energy-absorbing and takes place to crumple and carry out the second grade energy-absorbing after contracting.
Referring to fig. 1 and 2, the rocker outer panel 6 and the rocker inner panel 7 are fixed to define a third cushion chamber 8 between the rocker outer panel 6 and the rocker inner panel 7. Specifically, the outer plate 6 of the sill lower longitudinal beam is arranged on the outer side of the inner plate 7 of the sill lower longitudinal beam, the outer plate 6 of the sill lower longitudinal beam and the inner plate 7 of the sill lower longitudinal beam are welded and fixed to form a third buffer cavity 8, and the third buffer cavity 8 is arranged on the inner side of the first buffer cavity 3, is located on the rear side of the second buffer cavity 5 and is not directly connected with the first buffer cavity 3 and the second buffer cavity 5, so that the third buffer cavity 8 can sequentially buffer energy absorption and then carry out third-level energy absorption after the energy absorption is collapsed when a vehicle is subjected to side impact.
In summary, the three energy-absorbing buffer structures of the first buffer cavity 3, the second buffer cavity 5 and the third buffer cavity 8 are arranged, and the three buffer cavities are distributed inside and outside the threshold beam to form a three-level energy-absorbing structure, so that the energy-absorbing effect of the threshold beam can be effectively improved.
According to the rocker beam assembly 100 of the embodiment of the invention, the rocker beam assembly 100 can effectively increase the absorption energy of the whole rocker beam by arranging the multi-stage energy absorption structure, so that the collision safety of a vehicle is improved, and the riding safety of passengers is ensured.
According to some embodiments of the invention, the third buffer chamber 8 is flexibly connected to the first buffer chamber 3 and the second buffer chamber 5. Carry out flexonics with three cushion chamber and can effectively promote member living space, and can promote vehicle head-on collision, the biasing bumps power effect and white automobile body overall mode, torsional rigidity by a wide margin, eliminate the inefficacy risk that the automobile body panel beating atress exists, and then effectively protect driver and passenger, promote whole car security, reliability and durability.
As a preferred embodiment, a flexible suspension is provided between the rocker outer panel 6 and the side sill beam 2 and the front floor sill beam 4. Specifically, the number of the flexible suspensions is multiple, and the multiple flexible suspensions are connected between the outer plate 6 of the sill lower longitudinal beam and the side-wall threshold beam 2 and the front floor threshold beam 4 to realize flexible connection of the third buffer cavity 8 with the first buffer cavity 3 and the second buffer cavity 5. Compared with other flexible connecting pieces, the flexible suspension is more convenient to arrange, lower in manufacturing cost and smaller in mass, and is beneficial to reducing the manufacturing cost of the whole vehicle and achieving the purpose of lightening the whole vehicle.
As shown in fig. 1 and 2, a side body inner panel reinforcement plate 9 is provided in the first cushion chamber 3. Specifically, the side wall inner plate reinforcing plate 9 divides the first buffer cavity 3 into cavities similar to W shape, so that the energy generated in the collision process can be absorbed to the maximum extent, the strength of the first buffer cavity 3 is increased by arranging the side wall inner plate reinforcing plate 9, the absorption energy of the first buffer cavity 3 is indirectly increased, and the buffering energy absorption effect of the first buffer cavity 3 is better.
Further, the side body inner panel reinforcement plate 9 includes: the U-shaped first sub-reinforcing plate 91 and the U-shaped second sub-reinforcing plate 92 are distributed along the height direction of the first buffer cavity 3, so that the reinforcing effect of the first buffer cavity 3 is more uniform, and the two U-shaped reinforcing plates are arranged up and down to form the approximate W-shaped side wall inner plate reinforcing plate 9, so that the first buffer cavity 3 is divided into cavities similar to a W shape, and the energy absorption and buffering effects are improved.
The opening of the first sub-reinforcing plate 91 and the opening of the second sub-reinforcing plate 92 face the side sill beam 2, a first buffer gap 93 is formed between the bottom wall of the first sub-reinforcing plate 91 and the side outer panel 1, and a second buffer gap 94 is formed between the bottom wall of the second sub-reinforcing plate 92 and the side outer panel 1. Therefore, the bottom wall of the first sub-reinforcing plate 91 and the bottom wall of the second sub-reinforcing plate 92 do not have a reinforcing and supporting effect on the side wall outer plate 1, so that the first cushion chamber 3 is easier to collapse and absorb energy, and the side collision safety of the vehicle is improved.
Still further, the first sub-reinforcing plate 91 is located above the second sub-reinforcing plate 92, free ends of two side walls of the first sub-reinforcing plate 91 extend upwards and downwards to form a first fixing plate 911 and a second fixing plate 912, the first fixing plate 911 and the second fixing plate 912 are fixed to the side wall threshold beam 2, free ends of two side walls of the second sub-reinforcing plate 92 extend upwards and downwards to form a third fixing plate 921 and a fourth fixing plate 922, the third fixing plate 921 and the second fixing plate 912 extend in opposite directions and are connected, the third fixing plate 921 is fixed to the side wall threshold beam 2, and the fourth fixing plate 922 is clamped and fixed between the lower end of the side wall outer plate 1 and the lower end of the side wall threshold beam 2. Therefore, the side wall inner plate reinforcing plate 9 and the side wall doorsill beam 2 are welded and fixed together through the fixing plates, so that the side wall inner plate reinforcing plate can be arranged in the first buffer cavity 3 more stably.
As shown in fig. 1 and 2, a U-shaped rocker reinforcement 10 is provided in the third cushion chamber 8, and the opening of the rocker reinforcement 10 faces the rocker inner panel 7. Specifically, longeron reinforcing plate 10 under the threshold separates into a plurality of cavitys that distribute from top to bottom with third cushion chamber 8, can more even collapse when making third cushion chamber 8 receive the extrusion, and then makes it can maximize the energy that absorbs the collision process and produce to through setting up longeron reinforcing plate 10 under the threshold still increased the intensity of third cushion chamber 8, and then the indirect energy absorption that has increased third cushion chamber 8, make the buffering energy-absorbing effect of third cushion chamber 8 better.
Further, the free ends of the two side walls of the sill side sill reinforcing plate 10 extend upwards and downwards to form a fifth fixing plate 101 and a sixth fixing plate 102 respectively, the fifth fixing plate 101 and the sixth fixing plate 102 are both fixed with the sill side sill inner plate 7, and the bottom wall of the sill side sill reinforcing plate 10 is fixed with the sill side sill outer plate 6. Thus, the entire rocker reinforcement panel 10 is securely fixed in the third cushion chamber 8 by the weld-fixing of the fifth and sixth fixing plates 101 and 102 to the rocker inner panel 7. Because the third buffer cavity 8 is adjacent to the cab, the bottom plate of the sill reinforcing plate 10 is fixed with the sill outer plate 6, so that the overall strength of the third buffer cavity 8 is increased, the cab can be better protected, and the safety of passengers in the cab is further ensured.
As shown in fig. 1 and 2, the front sill 4 has a U-shaped structure, the opening of the front sill 4 faces the side sill 2, the free ends of the two side walls of the front sill 4 extend upward and downward to form a seventh fixing plate 41 and an eighth fixing plate 42, the seventh fixing plate 41 and the eighth fixing plate 42 are fixed to the inner side wall of the side sill 2, and the bottom wall of the front sill 4 is connected and fixed to the front floor 11. Front floor threshold roof beam 4 is fixed on side wall threshold roof beam 2 through seventh fixed plate 41 and eighth fixed plate 42 and side wall threshold roof beam 2 welded fastening with whole front floor threshold roof beam 4 to front floor threshold roof beam 4 still is connected whole threshold roof beam subassembly 100 and front floor panel 11 fixedly, with form stable ground structure, and then has guaranteed threshold roof beam subassembly 100's stability that sets up.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A threshold beam assembly (100), comprising:
the side wall structure comprises a side wall outer plate (1) and a side wall threshold beam (2), wherein the side wall outer plate (1) and the side wall threshold beam (2) are fixed to define a first buffer cavity (3) between the side wall outer plate (1) and the side wall threshold beam (2);
the front floor threshold beam (4) is fixed with the side wall threshold beam (2) to limit a second buffer cavity (5) between the front floor threshold beam (4) and the side wall threshold beam (2), wherein the side wall outer plate (1) is positioned on the outer side of the side wall threshold beam (2), the front floor threshold beam (4) is positioned on the inner side of the side wall threshold beam (2), and the second buffer cavity (5) is arranged on the inner side of the first buffer cavity (3);
the outer plate (6) of the threshold lower longitudinal beam is positioned on the outer side of the inner plate (7) of the threshold lower longitudinal beam, the outer plate (6) of the threshold lower longitudinal beam and the inner plate (7) of the threshold lower longitudinal beam are fixed to limit a third buffer cavity (8) between the outer plate (6) of the threshold lower longitudinal beam and the inner plate (7) of the threshold lower longitudinal beam, and the third buffer cavity (8) is arranged on the inner side of the first buffer cavity (3) and positioned on the inner side of the second buffer cavity (5);
the third buffer cavity (8) is flexibly connected with the first buffer cavity (3) and the second buffer cavity (5).
2. The rocker beam assembly (100) of claim 1, wherein a flexible suspension is provided between the rocker outer panel (6) and the rocker beam (2) and the rocker beam (4).
3. The rocker beam assembly (100) of claim 1, characterised in that a side sill inner panel reinforcement (9) is provided within the first cushioning cavity (3).
4. The rocker beam assembly (100) of claim 3, wherein the side sill inner panel reinforcement (9) includes: a first U-shaped sub-reinforcing plate (91) and a second U-shaped sub-reinforcing plate (92), wherein the first sub-reinforcing plate (91) and the second sub-reinforcing plate (92) are distributed along the height direction of the first buffer cavity (3), and the opening of the first sub-reinforcing plate (91) and the opening of the second sub-reinforcing plate (92) face the side wall doorsill beam (2).
5. The rocker beam assembly (100) according to claim 4, wherein the first sub reinforcement panel (91) is located above the second sub reinforcement panel (92), the free ends of the two side walls of the first sub reinforcing plate (91) respectively extend upwards and downwards to form a first fixing plate (911) and a second fixing plate (912), the first fixing plate (911) and the second fixing plate (912) are respectively fixed with the side wall doorsill beam (2), the free ends of the two side walls of the second sub reinforcing plate (92) respectively extend upwards and downwards to form a third fixing plate (921) and a fourth fixing plate (922), wherein the third fixing plate (921) and the second fixing plate (912) extend oppositely and are connected, third fixed plate (921) with side wall threshold roof beam (2) are fixed, fourth fixed plate (922) press from both sides to establish to be fixed the lower extreme of side wall planking (1) with between the lower extreme of side wall threshold roof beam (2).
6. The rocker beam assembly (100) according to claim 4, characterised in that the first sub reinforcement plate (91) has a first cushioning gap (93) between the bottom wall and the quarter outer panel (1), and the second sub reinforcement plate (92) has a second cushioning gap (94) between the bottom wall and the quarter outer panel (1).
7. The rocker beam assembly (100) according to claim 1, characterised in that a "U" -shaped rocker reinforcement plate (10) is arranged in the third cushioning chamber (8), the opening of the rocker reinforcement plate (10) facing the rocker inner plate (7).
8. The rocker beam assembly (100) according to claim 7, wherein the free ends of the two side walls of the rocker reinforcement panel (10) extend upward and downward to form a fifth fastening plate (101) and a sixth fastening plate (102), respectively, the fifth fastening plate (101) and the sixth fastening plate (102) are fastened to the rocker inner panel (7), and the bottom wall of the rocker reinforcement panel (10) is fastened to the rocker outer panel (6).
9. The rocker beam assembly (100) of claim 1, wherein the front rocker beam (4) is of a U-shaped structure, the opening of the front rocker beam (4) faces the side rocker beam (2), the free ends of the two side walls of the front rocker beam (4) extend upwards and downwards to form a seventh fixing plate (41) and an eighth fixing plate (42), the seventh fixing plate (41) and the eighth fixing plate (42) are fixed to the inner side wall of the side rocker beam (2), and the bottom wall of the front rocker beam (4) is fixedly connected with the front floor panel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430773.8A CN111232059B (en) | 2018-11-28 | 2018-11-28 | Threshold beam assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430773.8A CN111232059B (en) | 2018-11-28 | 2018-11-28 | Threshold beam assembly |
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| Publication Number | Publication Date |
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| CN111232059A CN111232059A (en) | 2020-06-05 |
| CN111232059B true CN111232059B (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811430773.8A Active CN111232059B (en) | 2018-11-28 | 2018-11-28 | Threshold beam assembly |
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| CN (1) | CN111232059B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623046B (en) * | 2020-12-28 | 2021-11-02 | 湖南大学 | Passenger car threshold beam manufacturing method |
| CN112896319A (en) * | 2021-03-10 | 2021-06-04 | 长城汽车股份有限公司 | Lateral energy-absorbing force-transferring structure of electric automobile |
| CN113200007A (en) * | 2021-05-24 | 2021-08-03 | 东风柳州汽车有限公司 | Vehicle body side impact reinforcing structure |
| CN114228840B (en) * | 2021-12-03 | 2023-06-06 | 江铃汽车股份有限公司 | Threshold beam structure for vehicle |
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| US8979173B2 (en) * | 2012-03-29 | 2015-03-17 | Honda Motor Co., Ltd. | Vehicle body floor structure for automobile |
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| US5641194A (en) * | 1994-08-31 | 1997-06-24 | Fuji Jukogyo Kabushiki Kaisha | Body structure for motor vehicle |
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| CN111232059A (en) | 2020-06-05 |
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