CN203974969U - A kind of automobile door sill girder construction and automobile - Google Patents
A kind of automobile door sill girder construction and automobile Download PDFInfo
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- CN203974969U CN203974969U CN201420331872.1U CN201420331872U CN203974969U CN 203974969 U CN203974969 U CN 203974969U CN 201420331872 U CN201420331872 U CN 201420331872U CN 203974969 U CN203974969 U CN 203974969U
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- 238000010276 construction Methods 0.000 title abstract 3
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model provides a kind of automobile door sill girder construction, comprises sill strip outside plate and sill strip inner panel, and the two is metal thin-wall structure and equal in length; Wherein, sill strip outside plate two ends walled thickness is the first thickness, and the walled thickness of outside plate interlude is the second thickness, and the second thickness is greater than the first thickness, two ends all along towards outside plate interlude direction from the first variation in thickness to the second thickness; Sill strip inner panel two ends walled thickness is the 3rd thickness, and the walled thickness of inner panel interlude is the 4th thickness, and the 4th thickness is greater than the 3rd thickness, two ends all along towards inner panel interlude direction from the 3rd variation in thickness to the four thickness; In the time that sill strip outside plate and sill strip inner panel fix, the equal in length and two ends of outside plate interlude and inner panel interlude align.Implement the present embodiment, can, in the situation that improving Crash Safety Design of Vehicles energy, realize the lightweight of automobile door sill girder construction, can reduce again sill strip textural association number of packages simultaneously, reduce manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of automobiles, especially, relate to an automobile doorsill beam structure and car.
Background
With the development of the automobile industry, the safety and the light weight of the automobile become important subjects of automobile research and development, and the automobile doorsill beam structure as an important component of a white automobile body relates to the safety of the automobile in the collision process, and the strength of the automobile doorsill beam structure directly influences the deformation condition of a passenger compartment in the side collision process, so that the side collision safety performance of the automobile is influenced. How to realize the lightweight of the automobile doorsill beam structure under the condition of ensuring the collision safety performance of the doorsill beam will become a challenge of the design of the automobile doorsill beam structure.
At present, the threshold beam structure mainly comprises threshold roof beam inside, planking structure, as shown in fig. 1, for the current threshold roof beam inside, the horizontal cross-section's of planking cross-section, threshold roof beam planking 1' and threshold roof beam inner panel 2' are the material of same thickness and make, and its thickness is decided by the intensity that will reach crash performance to under having good side crash performance condition in order to guarantee the car, need further perfect crash performance through the reinforcing plate structure sometimes, consequently there is very big weak point: the automobile doorsill beam structure is not beneficial to light weight, and the number of doorsill beam structure assemblies is increased, so that the manufacturing cost is increased.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve provides an automobile doorsill beam structure and car, can realize automobile doorsill beam structure's lightweight, improves the collision security performance of car, can reduce the number of doorsill beam structure combinations again, reduction in manufacturing cost.
In order to solve the technical problem, the embodiment of the utility model provides an automobile doorsill beam structure, which comprises a doorsill beam outer plate and a doorsill beam inner plate fixed with the doorsill beam outer plate, wherein the doorsill beam outer plate and the doorsill beam inner plate are both of metal thin-wall structures and have equal length; wherein,
the thickness of the thin walls at the two ends of the threshold beam outer plate is a first thickness, the thickness of the thin wall at the middle section of the outer plate at the middle part of the threshold beam outer plate is a second thickness, the second thickness is larger than the first thickness, and the thickness of the thin wall of the threshold beam outer plate is changed from the first thickness to the second thickness from the two ends of the thin wall towards the middle section of the outer plate;
the thickness of the thin walls at the two ends of the inner plate of the threshold beam is a third thickness, the thickness of the thin wall at the middle section of the inner plate at the middle part of the inner plate of the threshold beam is a fourth thickness, the fourth thickness is larger than the third thickness, and the thickness of the thin wall of the inner plate of the threshold beam is changed from the third thickness to the fourth thickness from the two ends of the thin wall of the inner plate of the threshold beam along the direction towards the middle section of the inner plate;
when the threshold roof beam planking with when the threshold roof beam inner panel is fixed mutually, planking interlude with the length of inner panel interlude is equal and both ends are aligned.
And the thickness of the thin wall of the outer plate of the threshold beam is continuously changed from the first thickness to the second thickness from two ends of the thin wall along the direction towards the middle section of the outer plate.
And the thickness of the thin wall of the inner plate of the threshold beam is continuously changed from the third thickness to the fourth thickness from two ends of the thin wall towards the middle section of the inner plate.
Wherein the first thickness is equal to the third thickness.
Wherein the second thickness is equal to the fourth thickness.
Wherein the first thickness and the second thickness are both between 1.5mm and 2.5 mm.
Wherein the third thickness and the fourth thickness are both between 1.5mm and 2.5 mm.
Wherein the length of the outer panel middle section is greater than half of the total length of the rocker beam outer panel.
The cross sections of the outer threshold beam plate and the inner threshold beam plate are U-shaped, rectangular or semicircular, the peripheries of the cross sections of the two ends of the outer threshold beam plate are the same, and the peripheries of the cross sections of the two ends of the inner threshold beam plate are the same.
The embodiment of the utility model provides a still provide an automobile, including aforementioned car threshold beam structure.
Implement the embodiment of the utility model provides a, following beneficial effect has:
1. because the thickness of the inner plate and the outer plate in the automobile doorsill beam structure is thin at two ends and thick in the middle, the strength and the structural energy absorption efficiency of the automobile doorsill beam are improved, the deformation and energy absorption of an automobile in the side collision process can be ensured, and the good collision safety performance is ensured;
2. because the thickness and the hardness of the inner plate and the outer plate in the automobile doorsill beam structure in the longitudinal direction (length direction) are gently changed (namely the thicknesses of two ends are continuously changed to the middle thickness), the stress concentration phenomenon does not exist, and the automobile doorsill beam structure has good forming performance;
3. under the condition of ensuring the collision safety performance, the additional reinforcing plate structure is not needed, so that the number of components and the light weight of the automobile doorsill beam structure are reduced, the weight reduction effect is obvious, the reliability is good, the economic benefit is outstanding, and the purposes of reducing the cost and saving resources are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
FIG. 1 is a cross-sectional view of the cross-sections of an inner panel and an outer panel of a prior art automotive rocker beam structure;
fig. 2 is a schematic perspective view of a sill beam structure of an automobile according to a first embodiment of the present invention;
FIG. 3 is an enlarged schematic view of detail A of FIG. 2;
wherein: 1 '-rocker outer panel, 2' -rocker inner panel, 1-rocker outer panel, 11-outer panel middle section, 2-rocker inner panel, 21-inner panel middle section, t 1-first thickness, t 2-second thickness, t 3-third thickness, t 4-fourth thickness.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2 and 3, the embodiment of the utility model provides an automobile doorsill beam structure, including doorsill beam planking 1 and with this doorsill beam planking 1 fixed doorsill beam inner panel 2 mutually, this doorsill beam planking 1 is integrated into one piece's metal thin-walled structure with doorsill beam inner panel 2 to the two length equals. When the rocker outer panel 1 and the rocker inner panel 2 are welded together, they are aligned in the length direction.
The thicknesses of the thin walls at both ends of the rocker outer panel 1 are both the first thickness t1, and the thickness of the thin wall of the outer panel middle section 11 at the middle portion of the rocker outer panel 1 is the second thickness t 2. The second thickness t2 is greater than the first thickness t 1. The thickness of the thin wall of the doorsill outer plate 1 is changed from a first thickness t1 to a second thickness t2 from the direction of the middle section 11 of the outer plate by adopting a flexible rolling technology, even in order to enable the thickness of the doorsill outer plate 1 to be thin at two ends and thick in the middle, the thickness and the hardness in the longitudinal direction (the length direction) are changed gently, no stress concentration phenomenon exists, and the thickness of the thin wall of the doorsill outer plate 1 needs to be continuously changed from the first thickness t1 to the second thickness t2 from the direction of the middle section 11 of the outer plate from the two ends.
The thickness of the thin walls at the two ends of the rocker beam inner plate 2 is the third thickness t3, and the thickness of the thin wall of the inner plate middle section 21 at the middle part of the rocker beam inner plate 2 is the fourth thickness t 4. The fourth thickness t4 is greater than the third thickness t 3. The thickness of the thin wall of the inner sill beam plate 2 is changed from the third thickness t3 to the fourth thickness t4 by adopting a flexible rolling technology, even in order to enable the thickness of the inner sill beam plate 2 to be thin at two ends and thick in the middle, the thickness and the hardness in the longitudinal direction (the length direction) are changed gently, no stress concentration phenomenon exists, and the thickness of the thin wall of the inner sill beam plate 2 needs to be changed from the third thickness t3 to the fourth thickness t4 continuously from the two ends along the direction of the middle section 21 of the inner plate.
When threshold roof beam planking 1 and threshold roof beam inner panel 2 are fixed mutually, planking interlude 11 is equal and both ends are aligned with the length of inner panel interlude 21 for the car is in front, the side collision in-process, and threshold roof beam planking 1 and threshold roof beam inner panel 2 atress distribute rationally and warp the energy-absorbing, guarantee good collision security performance, have improved automobile threshold roof beam's intensity and structure energy-absorbing efficiency.
For the thickness of the metal thin wall of the outer sill plate 1 and the inner sill plate 2, a designer can flexibly design according to own needs, and as an example, the first thickness and the second thickness are both between 1.5mm (millimeter) and 2.5mm, the first thickness is equal to the third thickness, even the second thickness is equal to the fourth thickness, so that the third thickness and the fourth thickness are also between 1.5mm and 2.5 mm. As yet another example, the first thickness and the second thickness are each between 1.5mm and 2.5mm, and the first thickness is not equal to the third thickness, or even the second thickness is not equal to the fourth thickness.
In order to take into account the change in the stress of the rocker beam structure during the actual application, the length of the outer panel middle section 11 is often considered to be greater than half the total length of the rocker beam outer panel 1, and the length of the corresponding inner panel middle section 21 is greater than half the total length of the rocker beam inner panel 2. As an example, the outer panel middle section 11 of the rocker outer panel 1 is designed to have a length of between 600 and 800mm, the remaining ends are each designed to have a length of between 200 and 300mm, the rocker inner panel 2 is designed to have the same length as the rocker outer panel 1 with both ends of the inner panel middle section 21 and the outer panel middle section 11 aligned, the inner panel middle section 21 is also designed to have a length of between 600 and 800mm, the remaining ends are also designed to have respective lengths of between 200 and 300mm,
the embodiment of the utility model provides an in, the cross section of threshold roof beam planking 1 and threshold roof beam inner panel 2 is type U, should understand that the cross section of threshold roof beam planking 1 and threshold roof beam inner panel 2 also can be shape such as rectangle or semi-circle, and the periphery of 1 both ends cross section of threshold roof beam planking is the same, and the periphery of 2 both ends cross sections of threshold roof beam inner panel is the same.
Corresponding to the utility model provides a car threshold beam structure of a, the utility model provides a second provides a car, has the embodiment of the utility model provides a car threshold beam structure, this car threshold beam structure's constitution and relation of connection etc. here are no longer repeated.
Implement the embodiment of the utility model provides a, following beneficial effect has:
1. because the thickness of the inner plate and the outer plate in the automobile doorsill beam structure is thin at two ends and thick in the middle, the strength and the structural energy absorption efficiency of the automobile doorsill beam are improved, the deformation and energy absorption of an automobile in the front and side collision processes can be ensured, and the good collision safety performance is ensured;
2. because the thickness and the hardness of the inner plate and the outer plate in the automobile doorsill beam structure in the longitudinal direction (length direction) are gently changed (namely the thicknesses of two ends are continuously changed to the middle thickness), the stress concentration phenomenon does not exist, and the automobile doorsill beam structure has good forming performance;
3. under the condition of ensuring the collision safety performance, the additional reinforcing plate structure is not needed, so that the number of components and the light weight of the automobile doorsill beam structure are reduced, the weight reduction effect is obvious, the reliability is good, the economic benefit is outstanding, and the purposes of reducing the cost and saving resources are achieved.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. The automobile doorsill beam structure comprises a doorsill beam outer plate (1) and a doorsill beam inner plate (2) fixed with the doorsill beam outer plate (1), and is characterized in that the doorsill beam outer plate (1) and the doorsill beam inner plate (2) are of metal thin-wall structures and are equal in length; wherein,
the thickness of the thin walls at the two ends of the threshold beam outer plate (1) is a first thickness, the thickness of the thin wall of the outer plate middle section (11) in the middle part of the threshold beam outer plate (1) is a second thickness, the second thickness is larger than the first thickness, and the thickness of the thin wall of the threshold beam outer plate (1) is changed from the first thickness to the second thickness from the two ends of the thin wall of the threshold beam outer plate along the direction towards the outer plate middle section (11);
the thickness of the thin walls at the two ends of the threshold beam inner plate (2) is a third thickness, the thickness of the thin wall of the inner plate middle section (21) in the middle of the threshold beam inner plate (2) is a fourth thickness, the fourth thickness is larger than the third thickness, and the thickness of the thin wall of the threshold beam inner plate (2) is changed from the third thickness to the fourth thickness from the two ends of the thin wall towards the inner plate middle section (21);
when threshold roof beam planking (1) with threshold roof beam inner panel (2) are fixed mutually, planking interlude (11) with the length of inner panel interlude (21) is equal and both ends are aligned.
2. The rocker beam structure for vehicles according to claim 1, wherein the thickness of the thin wall of the rocker outer panel (1) varies continuously from the first thickness to the second thickness from both ends thereof in a direction toward the outer panel middle section (11).
3. The rocker beam structure of claim 1, characterised in that the thickness of the thin wall of the rocker inner panel (2) varies continuously from the third thickness to the fourth thickness from both ends thereof in a direction towards the inner panel middle section (21).
4. The vehicle rocker beam structure of claim 3 wherein the first thickness is equal to the third thickness.
5. The vehicle rocker beam structure of claim 4 wherein the second thickness is equal to the fourth thickness.
6. The rocker beam structure of any one of claims 1 to 5, wherein the first and second thicknesses are each between 1.5mm and 2.5 mm.
7. The vehicle rocker beam structure of claim 6 wherein the third thickness and the fourth thickness are each between 1.5mm and 2.5 mm.
8. The rocker beam structure of the automobile according to claim 7, characterised in that the length of the outer panel middle section (11) is greater than half the total length of the rocker outer panel (1).
9. The rocker beam structure of claim 8, wherein the cross-sections of the outer rocker beam panel (1) and the inner rocker beam panel (2) are U-like, rectangular or semicircular, and the outer peripheries of the cross-sections of both ends of the outer rocker beam panel (1) are the same, and the outer peripheries of the cross-sections of both ends of the inner rocker beam panel (2) are the same.
10. An automobile characterized by comprising the automobile rocker beam structure as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331872.1U CN203974969U (en) | 2014-06-20 | 2014-06-20 | A kind of automobile door sill girder construction and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331872.1U CN203974969U (en) | 2014-06-20 | 2014-06-20 | A kind of automobile door sill girder construction and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203974969U true CN203974969U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420331872.1U Expired - Fee Related CN203974969U (en) | 2014-06-20 | 2014-06-20 | A kind of automobile door sill girder construction and automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN203974969U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943753A (en) * | 2015-06-30 | 2015-09-30 | 宝山钢铁股份有限公司 | Variable-thickness automobile doorsill beam and manufacturing method thereof |
| CN106394691A (en) * | 2015-07-22 | 2017-02-15 | 北汽福田汽车股份有限公司 | Pillar threshold beam assembly used for vehicle and vehicle comprising same |
-
2014
- 2014-06-20 CN CN201420331872.1U patent/CN203974969U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943753A (en) * | 2015-06-30 | 2015-09-30 | 宝山钢铁股份有限公司 | Variable-thickness automobile doorsill beam and manufacturing method thereof |
| CN106394691A (en) * | 2015-07-22 | 2017-02-15 | 北汽福田汽车股份有限公司 | Pillar threshold beam assembly used for vehicle and vehicle comprising same |
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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 |
Granted publication date: 20141203 Termination date: 20210620 |
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| CF01 | Termination of patent right due to non-payment of annual fee |