CN208393477U - A kind of front longitudinal beam structure of automobile - Google Patents
A kind of front longitudinal beam structure of automobile Download PDFInfo
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- CN208393477U CN208393477U CN201820784134.0U CN201820784134U CN208393477U CN 208393477 U CN208393477 U CN 208393477U CN 201820784134 U CN201820784134 U CN 201820784134U CN 208393477 U CN208393477 U CN 208393477U
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- longitudinal beam
- inner panel
- front longitudinal
- energy
- reinforcing rib
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Abstract
A kind of front longitudinal beam structure of automobile, belong to technical field of automobile components, this front longitudinal beam structure of automobile, the front longitudinal beam assembly to be formed is connected with outside plate including inner panel, the front end of front longitudinal beam assembly is connected with energy-absorption box, rear end is connected with cabin front panel is driven, cavity body structure is formed between inner panel and outside plate, inner panel is set as cast aluminium alloy gold plate, latticed reinforcing rib is provided on inner panel inner wall, foam energy-absorbing material is filled in the latticed reinforcing rib of inner panel rear end, the utility model has the beneficial effects that, the front rail structure overall structural strength is high, energy-absorbing effect is good, anti-bending strength is strong, it can bear high speed head-on crash, reduce the deflection of vehicle body, protect the life security of occupant.
Description
Technical field
The utility model relates to technical field of automobile components more particularly to a kind of front longitudinal beam structure of automobile.
Background technique
Car crass is often divided into head-on crash, side collision, rear collision, roll and collision pedestrian etc..In all traffic
In accident, probability that frontal crash of vehicles is occurred and its caused by death toll highest.When head-on crash occurs for automobile, before
The fronts such as stringer, collision prevention girders, fender, hood sheet metal components is the main component for absorbing collision energy, wherein front longitudinal beam
Energy-absorbing is the most prominent, and when the head-on crash of 48km/h occurs for automobile, front longitudinal beam absorbs the impact energy of about 50%-70%
Amount.Therefore the safe design of automobile front longitudinal beam is mainly focused on the collision energy-absorbing amount for improving front longitudinal beam and limits its peak value impact force
Size.
Traditional front longitudinal beam is using metal thin-wall girder structure, under the action of axial impact load, thin walled beam structure
Part failure mode often show as it is progressive collapse deformation pattern, axial strength is higher, is capable of providing relatively stable be compressed axially
Power, by being plastically deformed come the impact kinetic energy that dissipates, therefore it possesses good energy absorption.However, thin walled beam structure is by non axial
The ability of load is weaker, and is easy to happen bending surrender, causes energy-absorbing insufficient, the intrusion quantitative change of front panel when touching before making
Greatly, it deforms and increases so as to cause crew module, occupant's living space is caused to become smaller, will lead to the injury to occupant and increase.Moreover,
When head-on crash occurs, impact force is born by energy-absorption box first, the power exceeded will be born by the front longitudinal beam being connected with energy-absorption box, greatly
Bonding strength is smaller at the welding of part energy-absorption box and front longitudinal beam, when front longitudinal beam is by non axial load, is easy in energy-absorption box
It cracks with the junction of front longitudinal beam, keeps energy-absorbing insufficient, there is certain threat to the life security of occupant.
To sum up, the front longitudinal beam that a kind of energy-absorbing effect is good, Impact Resisting Capability is strong is designed, to reduce body distortion amount, protection multiplies
The life security of member, is current problem to be solved.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of front longitudinal beam structure of automobile, solves existing
The problem that front longitudinal beam bending strength is low, energy-absorbing effect is poor, by designing a kind of front rail structure, overall structural strength is high, energy-absorbing
Effect is good, can bear high speed head-on crash, can smaller vehicle body deflection, protect the life security of occupant.
To achieve the above object, the technical scheme adopted by the utility model to solve the technical problem is as follows: before the automobile
Longitudinal beam structure connects the front longitudinal beam assembly to be formed including inner panel with outside plate, and the front end of front longitudinal beam assembly is connected with energy-absorption box, rear end
It is connected with cabin front panel is driven, forms cavity body structure between inner panel and outside plate, which is characterized in that the inner panel is set as casting aluminium
Alloy sheets are provided with latticed reinforcing rib on inner panel inner wall, are filled with foam energy-absorbing material in the latticed reinforcing rib of inner panel rear end
Material.
Further, the grid arrangement density of the latticed reinforcing rib is gradually increased from the front end of inner panel to rear end.
Further, the thickness of the latticed reinforcing rib is gradually increased from the front end of inner panel to rear end.
Further, the height of the latticed reinforcing rib is gradually increased from the front end of inner panel to rear end.
Further, the thickness of the foam energy-absorbing material is gradually increased from the front end of inner panel to rear end, foam energy-absorbing material
The thickness of material is set as 10mm~50mm, and the length of foam energy-absorbing material is set as 50mm-100mm.
Further, the inner panel is set as U-board, and the both ends of the U-board are bent to form the first turnup structure respectively,
The both ends difference bending of the outside plate forms the second turnup structure, riveting after first turnup structure and the second turnup structure gluing
It connects connected.
Further, the outside plate is set as punching press aluminium alloy plate, and the rear portion of outside plate is provided with evacuation groove, close to evacuation
Bar shaped reinforcing rib is provided on the outside plate of groove along its length.
Further, the front end of the front longitudinal beam assembly is welded with the mounting plate for installing energy-absorption box, the peace
Loading board is welded and fixed with the first turnup structure and the second turnup structure.
The beneficial effects of the utility model are:
1, front longitudinal girder inner plate is set as the good cast aluminium alloy gold plate of energy-absorbing effect, is provided with latticed reinforcement on inner panel inner wall
Muscle increases the integral strength of front longitudinal beam, since outside plate rear end is provided with the evacuation groove with car body installation, is easy to produce herein
Bending deformation plays the role of abundant energy-absorbing so being filled with foam energy-absorbing material in the latticed reinforcing rib of inner panel rear end, full
Foot collision rear deflection protects the life security of occupant in the appropriate range of safety.
2, the arranging density of latticed reinforcing rib, thickness and height are gradually increased from the front end of inner panel to rear end, are realized
Intensity gradually increases from front to back, and the thickness of foam energy-absorbing material is gradually increased from the front end of inner panel to rear end, is realized
Energy absorption performance gradually increases from front to back, reduces the deflection of front longitudinal beam, further reduces the deflection of collision rear,
Reduce the injury to occupant.
3, the front end of front longitudinal beam assembly is welded with the mounting plate for installing energy-absorption box, and the first of mounting plate and inner panel
Second turnup structure of turnup structure and outside plate is welded and fixed, and further increases the integrated connection intensity of front longitudinal beam assembly, keeps away
The stitching portion for having exempted from front longitudinal beam assembly generates cracking, and makes that the connection of energy-absorption box and front longitudinal beam assembly is more stable, bonding strength
It is higher, improve the energy-absorbing effect of energy-absorption box and front longitudinal beam assembly.To sum up, the overall structural strength of the utility model is high, energy-absorbing
Effect is good, and anti-bending strength is strong, can bear high speed head-on crash, reduces the deflection of vehicle body, protects the life security of occupant.
Detailed description of the invention
Below to each width attached drawing of the utility model specification expression content and figure in label be briefly described:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the explosive view of the utility model；
Fig. 3 is the A-A cross-sectional view of Fig. 1；
Label in above-mentioned figure is equal are as follows: 1. inner panels, 11. first turnup structures, and 2. outside plates, 21. second turnup structures, 22.
Avoid groove, 23. bar shaped reinforcing ribs, 3. latticed reinforcing ribs, 4. foam energy-absorbing materials, 5. mounting plates.
Specific embodiment
Specific embodiment of the present utility model is made into one by the description to optimum embodiment below against attached drawing
Step detailed description.
The utility model specific embodiment are as follows: as shown in Figure 1 and Figure 2, a kind of front longitudinal beam structure of automobile, including inner panel 1
The front longitudinal beam assembly formed with the connection of outside plate 2, the front end of front longitudinal beam assembly are connected with energy-absorption box, rear end and driving cabin front panel phase
Even, cavity body structure is formed between inner panel 1 and outside plate 2, inner panel 1 is set as cast aluminium alloy gold plate, is provided with grid on 1 inner wall of inner panel
Shape reinforcing rib 3 is filled with foam energy-absorbing material 4 in the latticed reinforcing rib 3 of 1 rear end of inner panel, due to 2 rear end of outside plate be provided with
The evacuation groove 22 of car body installation is easy to produce bending deformation herein, so filling in the latticed reinforcing rib 3 of 1 rear end of inner panel
There is foam energy-absorbing material 4, play the role of abundant energy-absorbing, meets collision rear deflection in the appropriate range of safety,
Protect the life security of occupant.
Ground is advanced optimized, the grid arrangement density of latticed reinforcing rib 3 is gradually increased from the front end of inner panel 1 to rear end,
The thickness of latticed reinforcing rib 3 is gradually increased from the front end of inner panel 1 to rear end, and the height of latticed reinforcing rib 3 is from before inner panel 1
End is gradually increased to rear end, realizes the effect that the intensity of front longitudinal beam assembly gradually increases from front to back, is driven after reducing collision
Multiply the invasion amount of cabin front panel.
Ground is advanced optimized, the thickness of foam energy-absorbing material 4 is gradually increased from the front end of inner panel 1 to rear end, foam energy-absorbing
The thickness of material 4 is set as 10mm~50mm, and the length of foam energy-absorbing material 4 is set as 50mm-100mm, realizes front longitudinal beam
The effect that the energy absorption performance of assembly gradually increases from front to back further reduced the deflection of front longitudinal beam assembly, reduce and touch
The deflection for hitting rear reduces the injury to occupant.
Specifically, inner panel 1 is set as U-board, and the both ends of U-board are bent to form the first turnup structure 11 respectively, outside plate 2
Both ends distinguish bending and form the second turnup structure 21, rivet and are connected after the first turnup structure 11 and 21 gluing of the second turnup structure,
Keep the connection between inner panel 1 and outside plate 2 stronger, the stability after ensure that the installation of front longitudinal beam assembly further improves
Energy-absorbing effect.
Specifically, outside plate 2 is set as punching press aluminium alloy plate, and the rear portion of outside plate 2 is provided with evacuation groove 22, recessed close to avoiding
Bar shaped reinforcing rib 23 is provided on the outside plate 2 of slot 22 along its length, bar shaped reinforcing rib 23 increases holding for evacuation groove 22
The intensity of power weak link further reduces the bending deformation degree of outside plate 2, improves energy-absorbing effect.
Specifically, the front end of front longitudinal beam assembly is welded with the mounting plate 5 for installing energy-absorption box, mounting plate 5 and
One turnup structure 11 and the second turnup structure 21 are welded and fixed, and multiple weld tabs can be arranged in mounting plate 5 in this welding process, pass through weldering
Piece is welded and fixed after being bonded with front longitudinal beam assembly front end outer wall, further increases the integrated connection intensity of front longitudinal beam assembly, keeps away
The stitching portion for having exempted from front longitudinal beam assembly generates cracking, and makes that the connection of energy-absorption box and front longitudinal beam assembly is more stable, bonding strength
It is higher, improve the energy-absorbing effect of energy-absorption box and front longitudinal beam assembly.
The specific installation process of this front longitudinal beam structure of automobile is: firstly, the latticed reinforcement using equipment in 1 rear end of inner panel
Filled and process energy-absorbing material 4 in muscle 3；Then, adhesive is smeared on the first turnup structure 11 of inner panel 1, makes the first flange knot
It rivets and is connected after structure 11 and the alignment of the second turnup structure 21 of outside plate 2；Finally, the front end welding of front longitudinal beam assembly after assembling
Mounting plate 5 is welded and fixed with the first turnup structure 11 and the second turnup structure 21 in mounting plate 5.
To sum up, the overall structural strength of the utility model is high, and energy-absorbing effect is good, and anti-bending strength is strong, can bear high speed front
Collision, reduces the deflection of vehicle body, protects the life security of occupant.
The above, some principles of the utility model that only explains through diagrams, this specification are not intended to this is practical
It is novel to be confined in the shown specific structure and the scope of application, thus it is all it is all may be utilized accordingly modify and wait
Jljl belongs to the applied the scope of the patents of the utility model.
Claims (8)
1. a kind of front longitudinal beam structure of automobile, including the front longitudinal beam assembly that inner panel (1) and outside plate (2) connection are formed, front longitudinal beam assembly
Front end be connected with energy-absorption box, rear end with drive cabin front panel be connected, form cavity body structure between inner panel (1) and outside plate (2),
It is characterized in that, the inner panel (1) is set as cast aluminium alloy gold plate, is provided with latticed reinforcing rib (3) on inner panel (1) inner wall, interior
Foam energy-absorbing material (4) are filled in the latticed reinforcing rib (3) of plate (1) rear end.
2. front longitudinal beam structure of automobile according to claim 1, it is characterised in that: the grid of the latticed reinforcing rib (3)
Front end to the rear end of arranging density from inner panel (1) gradually increases.
3. front longitudinal beam structure of automobile according to claim 1, it is characterised in that: the thickness of the latticed reinforcing rib (3)
It is gradually increased from front end to the rear end of inner panel (1).
4. front longitudinal beam structure of automobile according to claim 1, it is characterised in that: the height of the latticed reinforcing rib (3)
It is gradually increased from front end to the rear end of inner panel (1).
5. front longitudinal beam structure of automobile according to claim 4, it is characterised in that: the thickness of the foam energy-absorbing material (4)
It is gradually increased from front end to the rear end of inner panel (1), the thickness of foam energy-absorbing material (4) is set as 10mm~50mm, foam energy-absorbing
The length of material (4) is set as 50mm-100mm.
6. front longitudinal beam structure of automobile described in any one according to claim 1~5, it is characterised in that: inner panel (1) setting
For U-board, the both ends of the U-board are bent to form the first turnup structure (11) respectively, and bending is distinguished at the both ends of the outside plate (2)
It is formed the second turnup structure (21), rivets and be connected after first turnup structure (11) and the second turnup structure (21) gluing.
7. front longitudinal beam structure of automobile according to claim 6, it is characterised in that: the outside plate (2) is set as the conjunction of punching press aluminium
Golden plate, the rear portion of outside plate (2) are provided with evacuation groove (22), on the outside plate (2) of evacuation groove (22) along its length
It is provided with bar shaped reinforcing rib (23).
8. front longitudinal beam structure of automobile according to claim 6, it is characterised in that: the front end welding of the front longitudinal beam assembly is solid
Surely there are the mounting plate (5) for installing energy-absorption box, the mounting plate (5) and the first turnup structure (11) and the second turnup structure
(21) it is welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784134.0U CN208393477U (en) | 2018-05-24 | 2018-05-24 | A kind of front longitudinal beam structure of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820784134.0U CN208393477U (en) | 2018-05-24 | 2018-05-24 | A kind of front longitudinal beam structure of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208393477U true CN208393477U (en) | 2019-01-18 |
Family
ID=65137603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820784134.0U Expired - Fee Related CN208393477U (en) | 2018-05-24 | 2018-05-24 | A kind of front longitudinal beam structure of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208393477U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319620A (en) * | 2020-10-14 | 2021-02-05 | 奇瑞汽车股份有限公司 | Structure of longitudinal beam wheel cover area for improving front collision performance |
| CN112441130A (en) * | 2019-09-04 | 2021-03-05 | 宁波吉利汽车研究开发有限公司 | Automobile doorsill beam, automobile body and automobile |
| CN112623034A (en) * | 2020-12-28 | 2021-04-09 | 湖南大学 | Automobile front longitudinal beam with partitioned filling materials, automobile and manufacturing method of front longitudinal beam |
-
2018
- 2018-05-24 CN CN201820784134.0U patent/CN208393477U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112441130A (en) * | 2019-09-04 | 2021-03-05 | 宁波吉利汽车研究开发有限公司 | Automobile doorsill beam, automobile body and automobile |
| CN112319620A (en) * | 2020-10-14 | 2021-02-05 | 奇瑞汽车股份有限公司 | Structure of longitudinal beam wheel cover area for improving front collision performance |
| CN112623034A (en) * | 2020-12-28 | 2021-04-09 | 湖南大学 | Automobile front longitudinal beam with partitioned filling materials, automobile and manufacturing method of front longitudinal beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 Termination date: 20200524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |