CN205836934U - A kind of automobile front longitudinal beam - Google Patents
A kind of automobile front longitudinal beam Download PDFInfo
- Publication number
- CN205836934U CN205836934U CN201620173225.1U CN201620173225U CN205836934U CN 205836934 U CN205836934 U CN 205836934U CN 201620173225 U CN201620173225 U CN 201620173225U CN 205836934 U CN205836934 U CN 205836934U
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- China
- Prior art keywords
- front longitudinal
- main body
- reinforcing plate
- longitudinal beam
- longitudinal main
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 48
- 208000002925 dental caries Diseases 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 10
- 230000001976 improved effect Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000004088 simulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000000418 atomic force spectrum Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Abstract
This utility model relates to automotive field, particularly relating to the design of a kind of automobile front longitudinal beam, a kind of automobile front longitudinal beam, including front longitudinal main body, it is characterized in that: described front longitudinal body interior is provided with at least one reinforcing plate, described front longitudinal body interior is divided at least two cavity by described reinforcing plate；Compared with traditional double shape for hat longitudinal beam structure form, new construction is either all greatly improved from average crushing force and interior can absorption, by cae analysis and the checking of dynamic drop weight test, use Multicarity Cross section Design, be effectively improved the situation that conventional cross-section front longitudinal variant is unstable.
Description
Technical field
This utility model relates to automotive field, particularly relates to the design of a kind of automobile front longitudinal beam.
Background technology
How many deformation pattern quality of front longitudinal and energy-absorbings directly affect intrusion volume and the vehicle body acceleration of crew module, front
Longeron is the key member absorbing collision energy in the basic load bearing unit of vehicle body framework construction and structure, before being commonly used in vehicle frame
End energy-absorbing district, its energy absorption characteristics directly determines car crass protective value.These parts not only to possess enough strength and stiffness,
Must also possess good plastic deformation ability；Both ensured can be as often as possible converted into by kinetic energy when head-on crash occurs this district
The deformation energy built, will not deform again excessive when non-collision operating mode.
Fig. 1 is that automobile industry is commonly used to the simulated automotive impact schematic diagram on the drop hammer test of front longitudinal impact.This experiment
Can react collision scenario the most really is situation about deforming upon after the power that can bear of front longitudinal and stress.
Fig. 2 is the cross-sectional structure of traditional double shape for hat front longitudinal, and Fig. 3 is the emulation of traditional double shape for hat front longitudinal drop hammer test
As a result, it is possible to find that tradition front rail structure deformation after drop hammer test is the most irregular and uncontrollable.Dynamically drop weight test table
The uncontrollable deformation such as bright, tradition shape for hat Cross section Design unreasonable easily causes that energy-absorbing is not enough, bending, flange cave in, this section
The front longitudinal in face can make car load B post acceleration higher, then reduces design capacity.Meanwhile, the difficulty of constrained system coupling is strengthened
Degree.
For this reason, it may be necessary to a kind of new construction or design changes this present situation.
Utility model content
The purpose of this utility model is to provide the automobile front longitudinal beam of the multi-level Cross section Design of a kind of Multicarity, it is intended to solve
The problem that conventional cross-section front longitudinal variant is unstable.Change front longitudinal section form, in equivalent material and the feelings of quality
Under condition, effectively meet front longitudinal safety collision energy-absorbing requirement, and be effectively improved crushing force and energy-absorbing index so that be same meeting
Reduce the usage amount of material in the case of sample mechanical property requirements, reach light-weighted demand.
This utility model is achieved in that a kind of automobile front longitudinal beam, including front longitudinal main body, it is characterised in that: described
Front longitudinal body interior is provided with at least one reinforcing plate, and described front longitudinal body interior is divided at least two by described reinforcing plate
Cavity.The front longitudinal of automobile is a rectangle hollow shape structure, and what the plurality of reinforcing plate was parallel is fixed in front longitudinal main body
Portion, plays the effect of reinforcement to front longitudinal.The thickness of described reinforcing plate and width can be adjusted as required, strengthen thickness of slab
Degree and width are the biggest, and the supporting function playing front longitudinal is the biggest, can enter reinforcing plate as required in a practical situation
Row design.
Further technical scheme of the present utility model is: described reinforcing plate is symmetrical bent angle shape, the two of reinforcing plate
Hold with the fixing end can fixed with front longitudinal main body.The both sides of reinforcing plate are fixed on front longitudinal main body as fixing end points
Inside, middle curved angular structure plays the effect strengthening mechanical property.
Further technical scheme of the present utility model is: described front longitudinal body interior is provided with at least one of which reinforcing plate.
Along front longitudinal body interior genesis analysis between multilamellar reinforcing plate.
Further technical scheme of the present utility model is: described reinforcing plate is arranged on the angle of described front longitudinal body interior
On, fixed position is positioned at the both sides at angle, and angle is separated into individual cavities.Front longitudinal body interior is generally rectangular cross-section, reinforcing plate
Being separately positioned on around four angles, two ends are separately fixed on two limits at each angle, and angle is surrounded, and are formed individually
Space.Separate being conducive to improves the overall ability to bear of structure and the regularity of deformation in the space at each angle.
Further technical scheme of the present utility model is: the cross section of described front longitudinal main body is rectangle, and described reinforcing plate is
Square, 4 described reinforcing plates are separately fixed on four angles in described front longitudinal body interior cross section, by described front longitudinal master
Body inner section is divided into five independent cavitys；The two ends of described square reinforcing plate are separately fixed at the correspondence on two limits at angle
Position so that the cavity that described reinforcing plate and the limit of described front longitudinal body interior are formed is for square.
Further technical scheme of the present utility model is: it is non-conterminous that described reinforcing plate is arranged on described front longitudinal body interior
Two limits on.Such as reinforcing plate can be parallel to each other with the limit of front longitudinal main body.
Further technical scheme of the present utility model is: described reinforcing plate is arranged on the limit of described front longitudinal body interior
On, it is fixed on two angles being connected with described limit, this limit is separated into individual cavities.Front longitudinal body interior is generally square
Shape, reinforcing plate is separately positioned on around four edges, and two ends are separately fixed on two angles on each limit, and limit is surrounded,
Form single space.Separate being conducive to improves the overall ability to bear of structure and the rule of deformation in the space on each limit
Property.
Further technical scheme of the present utility model is: be weldingly connected between described reinforcing plate and described front longitudinal main body.
This method is convenient and swift, greatly reduces cost.
Further technical scheme of the present utility model is: by rivet phase between described reinforcing plate with described front longitudinal main body
Even.This method is convenient and swift, greatly reduces cost.
Further technical scheme of the present utility model is: described front longitudinal main body is provided with induction groove.In front longitudinal main body
Can be provided with or without inducing groove, if being not provided with cost and the technique journey inducing groove can greatly reduce front longitudinal main body
Sequence.
The beneficial effects of the utility model are: compared with traditional double shape for hat longitudinal beam structure form, new construction is either from averagely
Crushing force and interior can absorption are all greatly improved, and by cae analysis and the checking of dynamic drop weight test, use Multicarity to cut
Face is designed, and is effectively improved the situation that conventional cross-section front longitudinal variant is unstable.
Accompanying drawing explanation
Fig. 1 is drop hammer test schematic diagram.
Fig. 2 is the cross sectional representation of tradition front longitudinal.
Fig. 3 is the longeron simulation result of tradition front longitudinal drop hammer test.
Fig. 4 is the cross sectional representation of the longeron that this utility model embodiment provides.
Fig. 5 is the longeron simulation result of the drop hammer test of the longeron that this utility model embodiment provides.
Fig. 6 is the crushing force curve of the front longitudinal that tradition front longitudinal provides with this utility model embodiment.
Reference: 1-reinforcing plate；3-front longitudinal main body.
Detailed description of the invention
Embodiment one is as shown in Figure 4.
Fig. 4 shows the cross section of the automobile front longitudinal beam that this utility model provides, and including front longitudinal main body 3, its feature exists
In: described front longitudinal main body 3 is internally provided with four reinforcing plates 1, and described reinforcing plate 1 is divided into internal for described front longitudinal main body 3
Five cavitys.It is internal that what the plurality of reinforcing plate 1 was parallel is fixed on front longitudinal main body 3, and front longitudinal plays the effect of support.Can
To see the inside being fixed on front longitudinal main body 3 in the way of the reinforcing plate 1 in Fig. 3 is by welding,
Further: to be weldingly connected between described reinforcing plate 1 and described front longitudinal main body 3.This method is convenient and swift, greatly
Decrease greatly cost.
Further: can also to be connected by rivet between described reinforcing plate 1 with described front longitudinal main body 3.In this enforcement
Although not making in this way in example, but this fixing means still can use on this utility model.This method
Convenient and swift, greatly reduce cost.
Further: described front longitudinal main body 3 is provided with induction groove.Can be provided with or without in front longitudinal main body 3
Induction groove, if being not provided with cost and the process inducing groove can greatly reduce front longitudinal main body.
Further: described reinforcing plate 1 is arranged on the angle within front longitudinal main body 3, and angle is separated into individual cavities.
Separate being conducive to improves the overall ability to bear of structure and the regularity of deformation in the space at each angle.The present embodiment is strengthened
The inside of front longitudinal main body 3 be divide into 5 cavitys by plate 1.
Further: the described reinforcing plate 1 used in the present embodiment be shaped as symmetrical bent angle shape, the two of bent angle
End is with fixing end.The two ends of reinforcing plate 1 are by welding and front longitudinal main body 3 interior contact, and remainder is unsettled.Reinforcing plate 1
Shape be not limited to bent angle shape, it is also possible to it is internal to be that circular arc or square etc. arbitrarily can be fixed on front longitudinal main body 3
Shape.
Fig. 5 is the simulation result of front rail structure drop hammer test in this utility model embodiment.With traditional double shape for hat in Fig. 3
It appeared that the deformation of tradition front rail structure is the most irregular and can not after the simulation result of front longitudinal drop hammer test compares
Control, the deformation of front longitudinal the most very rule in this utility model embodiment.
Fig. 6 is the crushing force curve of the front longitudinal that tradition front longitudinal provides with this utility model embodiment.It can be seen that phase
Compared with traditional double shape for hat longitudinal beam structure form, new construction is either the most greatly changed from average crushing force and interior can absorption
Kind, in Fig. 6, the average crushing force of new construction compares tradition front rail structure raising nearly 2 times.
This utility model embodiment uses the novel front rail structure of technological design such as Multicarity cross section, multilamellar welding, and it is good
Place is: compared with traditional structure, and new construction longeron is absorbed interior energy and improves close to 1.8 times, and longeron quality adds close to increase
Traditional stringer designs of strong plate.Being absorbed interior energy with unit mass to weigh, the application of new construction can improve 62% on the original basis
Above；New construction deformation compared with traditional double shape for hat longeron deformation have bigger improvement, without conventional cross-section longeron deform inflection and
Turning over all over the phenomenon such as caving in, it is excellent that malformation controls, and stringer designs can be made to reduce even without luring guide barrel construction, greatly
Reduce longeron processing technique, reduce manufacturing cost.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (10)
1. an automobile front longitudinal beam, including front longitudinal main body (3), it is characterised in that: described front longitudinal main body (3) is internally provided with
At least one reinforcing plate (1), described front longitudinal main body (3) inner section is divided at least two cavity by described reinforcing plate (1).
Automobile front longitudinal beam the most according to claim 1, it is characterised in that: described reinforcing plate (1) is symmetrical bent angle
Shape, the two ends of reinforcing plate are with the fixing end can fixed with front longitudinal main body.
Automobile front longitudinal beam the most according to claim 1, it is characterised in that: described front longitudinal main body (3) be internally provided with to
Few one layer of reinforcing plate (1).
4. according to described automobile front longitudinal beam arbitrary in claims 1 to 3, it is characterised in that: described reinforcing plate (1) is arranged on institute
Stating on the angle that front longitudinal main body (3) is internal, fixed position is positioned at the both sides at angle, and angle is separated into individual cavities.
Automobile front longitudinal beam the most according to claim 4, it is characterised in that: the cross section of described front longitudinal main body (3) is rectangle,
Described reinforcing plate (1) is square, and 4 described reinforcing plates (1) are separately fixed at the four of described front longitudinal main body (3) inner section
On individual angle, described front longitudinal main body (3) inner section is divided into five independent cavitys；The two of described square reinforcing plate (1)
End is separately fixed at the correspondence position on two limits at angle so that the limit that described reinforcing plate (1) is internal with described front longitudinal main body (3)
The cavity formed is square.
6. according to described automobile front longitudinal beam arbitrary in claims 1 to 3, it is characterised in that: described reinforcing plate (1) is arranged on institute
State on internal non-conterminous two limits of front longitudinal main body (3).
7. according to described automobile front longitudinal beam arbitrary in claims 1 to 3, it is characterised in that: described reinforcing plate (1) is arranged on institute
State on the limit that front longitudinal main body (3) is internal, be fixed on two angles being connected with described limit, this limit is separated into independent sky
Chamber.
8. according to described automobile front longitudinal beam arbitrary in claims 1 to 3, it is characterised in that: described reinforcing plate (1) with described before
Longeron main body is weldingly connected between (3).
9. according to described automobile front longitudinal beam arbitrary in claims 1 to 3, it is characterised in that: described reinforcing plate (1) with described before
It is connected by rivet between longeron main body (3).
10. according to described automobile front longitudinal beam arbitrary in claims 1 to 3, it is characterised in that: on described front longitudinal main body (3)
It is provided with induction groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173225.1U CN205836934U (en) | 2016-03-08 | 2016-03-08 | A kind of automobile front longitudinal beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173225.1U CN205836934U (en) | 2016-03-08 | 2016-03-08 | A kind of automobile front longitudinal beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205836934U true CN205836934U (en) | 2016-12-28 |
Family
ID=57627316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620173225.1U Expired - Fee Related CN205836934U (en) | 2016-03-08 | 2016-03-08 | A kind of automobile front longitudinal beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205836934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882750A (en) * | 2016-03-08 | 2016-08-24 | 上汽通用五菱汽车股份有限公司 | Front longitudinal beam of automobile |
| CN110884567A (en) * | 2018-09-10 | 2020-03-17 | 丰田自动车株式会社 | Front body structure of vehicle |
-
2016
- 2016-03-08 CN CN201620173225.1U patent/CN205836934U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882750A (en) * | 2016-03-08 | 2016-08-24 | 上汽通用五菱汽车股份有限公司 | Front longitudinal beam of automobile |
| CN110884567A (en) * | 2018-09-10 | 2020-03-17 | 丰田自动车株式会社 | Front body structure of vehicle |
| CN110884567B (en) * | 2018-09-10 | 2022-01-14 | 丰田自动车株式会社 | Front body structure of vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 |