CN209870552U - Combined carbon fiber vehicle body threshold and floor structure - Google Patents
Combined carbon fiber vehicle body threshold and floor structure Download PDFInfo
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- CN209870552U CN209870552U CN201920254702.0U CN201920254702U CN209870552U CN 209870552 U CN209870552 U CN 209870552U CN 201920254702 U CN201920254702 U CN 201920254702U CN 209870552 U CN209870552 U CN 209870552U
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- floor
- threshold
- carbon fiber
- plate
- front seat
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 44
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 44
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229920000297 Rayon Polymers 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000011208 reinforced composite material Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 7
- 230000009545 invasion Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
The utility model discloses a modular carbon fiber automobile body threshold and floor structure, including threshold roof beam, front seat crossbeam, floor, threshold roof beam, front seat crossbeam and floor constitute by carbon fiber reinforced composite, the threshold roof beam is connected through being connected at threshold roof beam inner panel viscose with the floor, has arranged pre-buried bolt in the viscose region, front seat crossbeam is connected through the turn-ups district viscose at front seat crossbeam with the floor. The utility model discloses when improving the crashworthiness nature of car side, reduce whole car weight, provide a modular carbon fiber automobile body threshold and floor structure.
Description
Technical Field
The utility model relates to an automobile manufacturing and collision safety field, in particular to modular carbon fiber automobile body threshold and floor structure.
Background
The automobile body threshold and the floor are very important automobile protection parts, and can effectively resist external invasion in the side collision of an automobile, protect the integrity of a passenger compartment and reduce the injury of passengers in the automobile. The automobile side sill structure has the advantages that the width space of an automobile is limited, a driver and a passenger seat in the automobile are fixed on the floor beam and are very close to a side wall collision area, so that the automobile side sill is required to have enough rigidity and strength to resist the impact of side collision, meanwhile, the floor and the seat beam structure can provide enough support for the door sill, a cockpit is pushed away from the collision area as soon as possible, and the invasion amount and the invasion speed of the side wall structure to the passenger cabin are reduced. Therefore, the main method for ensuring the safety performance of the side face of the automobile is to optimally match the strength and the rigidity of the doorsill of the automobile body and the floor structure, increase energy absorption and reduce deformation.
Traditional car threshold roof beam, floor and seat crossbeam mostly adopt the high-strength steel board to make, through optimizing structural style, material grade, steel sheet thickness, reach the crashworthiness requirement of side, nevertheless can increase automobile body weight and performance promotion is limited. Along with the stricter and stricter requirements of the nation on the automobile emission, the light automobile situation becomes more and more severe, and along with the popularization of pure electric automobiles, lighter automobile bodies are crucial to increasing the driving range, so that lighter and stronger automobile body doorsills and floor structures are urgently needed to replace the traditional steel structures.
Disclosure of Invention
The utility model discloses a main objective is in order to improve the resistant nature that hits of car side, reduces whole car weight, provides a modular carbon fiber automobile body threshold and floor structure.
The utility model adopts the following technical scheme:
the utility model provides a modular carbon fiber automobile body threshold and floor structure, includes threshold roof beam, front seat crossbeam, floor, and threshold roof beam, front seat crossbeam and floor constitute by carbon fiber reinforced composite, the threshold roof beam is connected through being connected at threshold roof beam inner panel viscose with the floor, has arranged pre-buried bolt in the viscose area, front seat crossbeam is connected through the turn-ups district viscose at front seat crossbeam with the floor.
A modular carbon fiber automobile body threshold and floor structure, the threshold roof beam comprises threshold roof beam planking, threshold roof beam inner panel, honeycomb aluminum structure, threshold roof beam planking, inner panel are carbon fiber reinforced composite, threshold roof beam planking passes through viscose and bolted connection with threshold roof beam inner panel, honeycomb aluminum structure installs in having the threshold roof beam in, in the cavity that the planking constitutes, honeycomb aluminum structure is radial and perpendicular with the threshold roof beam.
According to the combined carbon fiber vehicle body threshold and floor structure, the front row seat beam is composed of a front row seat beam body and a beam reinforcing plate, and the front row seat beam body is made of carbon fiber materials; the beam reinforcing plate is formed by a hot forming steel plate; the front-row seat beam body is connected with the beam reinforcing plate through adhesive.
The floor structure consists of a floor and front coaming lap joint area, a floor central area, a floor and threshold lap joint area, a floor and seat beam lap joint area and a middle channel, wherein the floor and seat beam lap joint area and a front row seat beam form a closed cavity; the number of layers of the floor near the deformation area of the doorsill beam is more than that of the layers far away from the deformation area of the collision. Has the advantages that:
compared with the prior art, the utility model, have following advantage:
(1) the utility model adopts the carbon fiber reinforced composite material, thereby improving the strength and rigidity of the car body threshold, the floor and the front row seat beam while realizing the light weight of the car body;
(2) the combined carbon fiber doorsill and floor structure adopted by the utility model has the advantages that the honeycomb aluminum energy absorption structure is added in the hollow area of the doorsill, so that the side impact energy absorption can be effectively increased, the thermal forming ultrahigh strength steel reinforcing plate is added in the seat beam, the strength, the rigidity and the deformation resistance of the seat beam can be effectively improved, and the invasion speed and the invasion amount of the side wall structure relative to the passenger compartment are reduced;
(3) the utility model discloses the combination formula carbon fiber threshold and floor structure that adopts carries out the subregion according to collision atress size to the floor structure, and then the subregion carries out the optimization of carbon fiber layer thickness, and the regional number of piles that spreads of big deformation is many, and the regional number of piles that spreads of little deformation is few, can further reduce the weight of automobile body.
Drawings
Fig. 1 is a schematic structural view of a combined carbon fiber car body threshold and a floor according to the present invention;
FIG. 2 is an exploded view of an outer plate, an inner plate and a honeycomb energy-absorbing structure of a carbon fiber car body sill beam;
FIG. 3 is a transverse cross-sectional view of a carbon fiber body rocker beam;
FIG. 4 is a schematic view of a seat beam of carbon fiber material and a beam reinforcement plate of thermoformed steel material thereof;
FIG. 5 is a schematic cross-sectional view of a seat beam of carbon fiber material joined to a beam stiffener of hot formed steel material by glue;
FIG. 6 is a schematic structural view of a carbon fiber floor;
in the drawings, the reference numbers are respectively:
1. a threshold beam; 101. a sill beam outer panel; 102. a sill beam inner panel; 103. threshold roof beam honeycomb aluminium energy-absorbing structure.
2. A front row seat beam; 201. a front seat front cross member; 2011. a front seat front beam body; 2012. a front cross member reinforcing plate; 202. a front seat rear cross member; 2021. a front seat rear cross beam body; 2022. a rear cross member reinforcing plate; 203. the composite material uses the structural adhesive.
3. A floor; 301. a lap joint area of the floor and the front wall plate; 302. a central region of the floor; 303. a lap joint area of the floor and the threshold; 304. a floor and seat beam lap joint area; 305. a middle channel.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in the attached drawing 1, the utility model relates to a modular carbon fiber vehicle body threshold and floor structure, which comprises a threshold beam 1, a front row seat beam 2 and a floor 3. The threshold beam, the front row seat cross beam and the floor are all made of carbon fiber reinforced composite materials. Threshold roof beam is connected through gluing at threshold roof beam inner panel with the floor, has arranged pre-buried bolt in the viscose area, has strengthened the joint strength on threshold roof beam and floor. The front row seat beam is connected with the floor through the adhesive in the flanging area of the front row seat beam.
As shown in fig. 2 to 3, the rocker beam is composed of an outer rocker beam plate 101, an inner rocker beam plate 102 and a honeycomb aluminum 103, wherein the outer rocker beam plate and the inner rocker beam plate are both made of carbon fiber reinforced composite materials. 24 layers of outer plate laying layers, 22 layers of inner plate laying layers and the inner plate and the outer plate are connected through viscose glue and bolts. An energy-absorbing honeycomb aluminum structure is arranged in a cavity formed by the inner plate and the outer plate of the threshold beam, and the honeycomb aluminum structure is vertical to the threshold beam in the radial direction. When the automobile is impacted on the side surface, the outer doorsill beam plate is impacted to be bent and deformed, the honeycomb aluminum structure is axially crushed, deformed and absorbed with energy, and the inner doorsill beam plate transmits the deformation and the impact force to the seat cross beam and the floor structure. Compare traditional steel structure, carbon fiber threshold roof beam bears bending deformation's rigidity higher, and the quality is also lighter, and the inside honeycomb aluminium of threshold roof beam has also increased side collision energy absorption ability simultaneously.
As shown in fig. 4 to 5, the front seat cross member is composed of a front seat cross member body and a cross member reinforcing plate. The front seat front cross beam body 2011 and the front seat rear cross beam body 2021 are both made of carbon fiber materials; the front cross beam reinforcing plate 2012 and the rear cross beam reinforcing plate 2022 are both made of hot forming steel plates; the front seat beam body and the beam reinforcing plate are connected by structural adhesive 203 made of composite materials. The carbon fiber seat cross beam with the thermoformed steel reinforcing plate can provide enough support for the inner sill beam plate 102 in side collision, reduce the deformation of the sill beam and reduce the intrusion amount and the intrusion speed of the side wall to the passenger compartment.
As shown in fig. 6, the floor structure is composed of 5 parts, namely, a floor-to-dash panel lap area 301, a floor center area 302, a floor-to-rocker lap area 303, a floor-to-seat cross-member lap area 304, and a center tunnel 305. The floor-to-rocker lap joint 303 is required to take up deformation and compression of the rocker inner panel 102 in a side collision, and the area is prone to cracking failure, so 22-26 layers of carbon fiber cloth are required to be arranged to improve the strength of the floor in the area. The lap joint area 304 of the floor and the seat beam, the front seat beam body and the beam reinforcing plate form a closed cavity, the floor area is connected with the front seat beam body through viscose glue, and 20-22 layers of carbon fiber cloth are required to be arranged for providing a solid foundation for the front seat beam structure. The closed structure formed by the floor area and the front row seat beam has the characteristics of high strength and high rigidity, and is a main force transmission structure. The central area 302 and the middle channel 305 of the floor are far away from the collision area, so that the impact on the side surface is small, the structural deformation is small, and the number of carbon fiber cloth layers can be reduced to 14-18 layers. On the basis of light weight of the carbon fiber material, the weight of the vehicle body is further reduced by optimizing the partitioned laying layer of the floor structure fiber cloth.
According to the optimization and design thought, obtain combination formula carbon fiber automobile body threshold and floor structure, through the resistance of threshold roof beam to the side collision, the energy-absorbing buffering of honeycomb aluminum structure, the seat is preceding, the rear beam supports the structure of threshold roof beam to and the floor is to threshold, the connection of seat crossbeam, has formed a side collision barrier propterty, and the lightweight effect is showing combination formula structure. The composite material can be used for improving the collision resistance and lightening the weight of a steel automobile body through the connection of dissimilar materials, can also be used for the development and design of a carbon fiber automobile body structure of a new energy automobile, can obviously improve the side collision resistance and lightening the weight, and brings social and economic benefits.
The weight of a traditional steel doorsill beam, a seat cross beam and a floor structure is 78 kilograms, and the weight of a combined carbon fiber doorsill beam and floor structure is 60 kilograms. Modular carbon fiber automobile body threshold compares in traditional steel automobile body structure with floor structure, and it is good to have side collision performance, the light advantage of quality.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a modular carbon fiber automobile body threshold and floor structure, its characterized in that, includes threshold roof beam, front seat crossbeam, floor, and threshold roof beam, front seat crossbeam and floor constitute by carbon fiber reinforced composite, the threshold roof beam is connected through being connected at threshold roof beam inner panel viscose with the floor, has arranged pre-buried bolt in the viscose area, front seat crossbeam is connected through the turn-ups district viscose at front seat crossbeam with the floor.
2. The combined carbon fiber vehicle body threshold and floor structure as claimed in claim 1, wherein the threshold beam is composed of an outer threshold beam plate, an inner threshold beam plate and a honeycomb aluminum structure, the outer threshold beam plate and the inner threshold beam plate are both made of carbon fiber reinforced composite materials, the outer threshold beam plate and the inner threshold beam plate are connected through glue and bolts, the honeycomb aluminum structure is installed in a cavity formed by the inner threshold beam plate and the outer threshold beam plate, and the honeycomb aluminum structure is perpendicular to the threshold beam in the radial direction.
3. A combined carbon fiber vehicle sill and floor structure as claimed in claim 1 wherein said front seat beam is comprised of a front seat beam body and a beam reinforcement, the front seat beam body being comprised of a carbon fiber material; the beam reinforcing plate is formed by a hot forming steel plate; the front-row seat beam body is connected with the beam reinforcing plate through adhesive.
4. The combined carbon fiber vehicle sill and floor structure of claim 1, wherein the floor structure is composed of a floor-to-dash panel lap zone, a floor center zone, a floor-to-sill lap zone, a floor-to-seat cross beam lap zone, and a center tunnel, the floor-to-seat cross beam lap zone and a front row seat cross beam forming a closed cavity; the number of layers of the floor near the deformation area of the doorsill beam is more than that of the layers far away from the deformation area of the collision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254702.0U CN209870552U (en) | 2019-02-28 | 2019-02-28 | Combined carbon fiber vehicle body threshold and floor structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254702.0U CN209870552U (en) | 2019-02-28 | 2019-02-28 | Combined carbon fiber vehicle body threshold and floor structure |
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| CN209870552U true CN209870552U (en) | 2019-12-31 |
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| CN201920254702.0U Active CN209870552U (en) | 2019-02-28 | 2019-02-28 | Combined carbon fiber vehicle body threshold and floor structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823415A (en) * | 2019-02-28 | 2019-05-31 | 中国第一汽车股份有限公司 | A kind of combined type carbon fiber body sill and floor panel structure |
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- 2019-02-28 CN CN201920254702.0U patent/CN209870552U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823415A (en) * | 2019-02-28 | 2019-05-31 | 中国第一汽车股份有限公司 | A kind of combined type carbon fiber body sill and floor panel structure |
| CN109823415B (en) * | 2019-02-28 | 2024-08-02 | 中国第一汽车股份有限公司 | Combined carbon fiber vehicle body threshold and floor structure |
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