CN209921427U - Connecting piece structure of rear end of automobile front longitudinal beam - Google Patents
Connecting piece structure of rear end of automobile front longitudinal beam Download PDFInfo
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- CN209921427U CN209921427U CN201920241666.4U CN201920241666U CN209921427U CN 209921427 U CN209921427 U CN 209921427U CN 201920241666 U CN201920241666 U CN 201920241666U CN 209921427 U CN209921427 U CN 209921427U
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- reinforcing plate
- longitudinal beam
- connecting piece
- rear end
- front longitudinal
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 45
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000001133 acceleration Effects 0.000 abstract description 9
- 230000010354 integration Effects 0.000 abstract description 5
- 210000003414 extremity Anatomy 0.000 description 6
- 210000002683 foot Anatomy 0.000 description 6
- 210000003141 lower extremity Anatomy 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 210000003371 toe Anatomy 0.000 description 2
- 206010061225 Limb injury Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
The utility model relates to a connecting piece structure of automobile front longitudinal beam rear end, which comprises a connecting piece body, wherein the front end and the rear end of the connecting piece body are respectively connected with a front longitudinal beam and a bottom plate longitudinal beam; the junction of anterior segment reinforcing plate and back end reinforcing plate forms the guiding area that warp, and is located foot space front side top. The utility model discloses under the prerequisite that does not influence original automobile body design and take the travelling comfort, bump in-process automobile body acceleration and keep passenger low limbs space integrality before can suitably reducing to effectively promoted whole car security performance, guaranteed lower cost and better system integration nature simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the car, concretely relates to connecting piece structure of longeron rear end before car.
Background
The ability of the front of the vehicle to absorb impact energy and the ability to maintain foot room during a high speed collision of the vehicle are important to the safety of the occupants. However, the two methods have a contradictory relationship, and the absorption of energy and the maintenance of the passenger space are not always compatible.
In the prior art, the front longitudinal beam is usually considered to absorb the main collision energy in the design of the longitudinal beam, and the deformation of a key part on the main force transmission path of the front longitudinal beam rear end connecting piece is considered to absorb part of the energy, such as the technology disclosed in patent applications with the application numbers of CN200910191263.4, CN201110318633.3 and CN 200310101822.0. Although these techniques have improved in terms of structure, cost, and driver comfort, they have not been able to deform the front-side-member rear-end connecting member appropriately in terms of vehicle passive safety performance, and have been effective in improving occupant protection performance. When the collision happens, the front longitudinal beam is completely crushed or deformed, and the connecting piece at the rear end of the front longitudinal beam is stronger and cannot properly deform to absorb energy, so that the acceleration of the whole vehicle is higher, and the injury to passengers is larger.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a connecting piece structure of longeron rear end before car aims at when the collision takes place, enables the appropriate deformation of longeron rear end connecting piece and absorbs the part because the kinetic energy that the collision produced, and the space that also can keep passenger's low limbs simultaneously does not receive great encroaching on.
In order to achieve the above purpose, the utility model adopts the following scheme:
a connecting piece structure at the rear end of a front longitudinal beam of an automobile comprises a connecting piece body, wherein the front end and the rear end of the connecting piece body are respectively connected with the front longitudinal beam and a bottom plate longitudinal beam; the junction of anterior segment reinforcing plate and back end reinforcing plate forms the guiding area that warp, and is located foot space front side top.
Furthermore, the connecting ends of the front section reinforcing plate and the rear section reinforcing plate are respectively provided with a flanging structure, and the flanging structures of the two connecting ends are connected through spot welding to form a strength weak area as a deformation guide area.
Furthermore, the junction of anterior segment reinforcing plate and back end reinforcing plate still is provided with the guiding groove that warp or processes the pore structure that has the weak strength.
When a front collision accident occurs to a vehicle, the front protective energy absorption box, the front section of the front longitudinal beam and the rear section of the front longitudinal beam of the vehicle body are sequentially crushed or deformed due to the larger energy generated by collision, so that the energy generated by collision is absorbed. When the front longitudinal beam crushes completely, the connecting piece of front longitudinal beam rear end is not an organic whole because its anterior segment reinforcing plate and back end reinforcing plate, produces the less strong region in the junction of front end reinforcing plate and back end reinforcing plate, can produce the deformation of a bending at the junction of front end reinforcing plate and back end reinforcing plate this moment and absorb the energy of partial whole car collision in-process, and the back end reinforcing plate then can keep the structural integrity of passenger foot space and preceding bottom plate. Because the connecting position of the front section reinforcing plate and the rear section reinforcing plate of the front longitudinal beam rear end connecting piece is positioned above the front side of the foot space, the deformation of the front longitudinal beam rear end connecting piece can be effectively avoided from occurring in relevant areas (such as toes, heels and the like) which influence the injury of the lower limbs of the passenger, and thus, the purposes of absorbing energy generated by collision and not influencing the integration of the lower limb safety system of the passenger are achieved.
This connecting piece structure of longeron rear end before car has following beneficial effect:
(1) the utility model discloses, thereby the suitable deformation of former longeron rear end connecting piece absorbs the energy of collision process and reaches the purpose that reduces whole car acceleration, the split type design of former longeron rear end connecting piece reinforcing plate structure and keep away the position in the required space of passenger's low limbs when guaranteeing that the front longitudinal rear end body warp to the design of the hookup location of split type reinforcing plate, both guaranteed like this that the front longitudinal rear end connecting piece can take place deformation energy consumption and reduce the acceleration of whole car collision, also enable passenger's lower part space and obtain the guarantee, thereby improve the performance of passenger protection.
(2) The utility model discloses under the prerequisite that does not influence original automobile body design and take the travelling comfort, bump in-process automobile body acceleration and keep passenger low limbs space integrality before can suitably reducing to effectively promoted whole car security performance, guaranteed lower cost and better system integration nature simultaneously.
(3) The utility model discloses simple structure, with low costs, practicality are strong, excellent in use effect.
Drawings
FIG. 1: the structure schematic diagram of the connecting piece structure at the rear end of the front longitudinal beam of the automobile in the embodiment of the utility model;
FIG. 2: the utility model discloses a state diagram of the front longitudinal beam rear end connecting piece before collision in the implementation mode;
FIG. 3: the utility model discloses deformation schematic diagram of front longitudinal back end connecting piece after the collision among the embodiment.
Description of reference numerals:
1-connector body; 2-front section reinforcing plate; 3-rear end reinforcing plate; 4-the junction of the front and rear reinforcing plates; 5-foot space.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 to 3 show a specific embodiment of the connecting member structure of the rear end of the front longitudinal beam of the present invention. FIG. 1 is a schematic structural view of a connecting member structure of a rear end of a front side member of an automobile in the present embodiment; fig. 2 and 3 are schematic views of the front side member rear end connecting member in the present embodiment in a state before and after a collision. The utility model provides a to the front and back unanimity with the front and back of car, the utility model provides a longitudinal and car front longitudinal's the direction of arranging is unanimous, also is to the front and back of car.
As shown in fig. 1 to 3, the connecting member structure at the rear end of the front longitudinal beam of the automobile in the present embodiment includes a connecting member body 1, the front end and the rear end of the connecting member body 1 are respectively connected to the front longitudinal beam and the bottom longitudinal beam, a front section reinforcing plate 2 is longitudinally disposed at the front section of the connecting member body 1, and a rear section reinforcing plate 3 is longitudinally disposed at the rear section of the connecting member body 1; the junction 4 of the front-stage reinforcing plate 2 and the rear-stage reinforcing plate 3 forms a deformation guide region and is located above the front side of the foot space 5. In the event of a collision, the rear stiffener 3 maintains the foot well and structural integrity of the front floor of the occupant.
Preferably, the connecting ends of the front section reinforcing plate 2 and the rear section reinforcing plate 3 are respectively provided with a flanging structure, and the flanging structures of the two connecting ends are connected by spot welding to form a strength weak area as a deformation guide area.
Preferably, the junction 4 of the front section reinforcing plate 2 and the rear section reinforcing plate 3 may be further provided with a deformation guide groove or a hole structure processed with weakened strength, or the like.
When a front collision accident occurs to a vehicle, the front protective energy absorption box, the front section of the front longitudinal beam and the rear section of the front longitudinal beam of the vehicle body are sequentially crushed or deformed due to the larger energy generated by collision, so that the energy generated by collision is absorbed. When the front longitudinal beam is completely crushed, the connecting piece at the rear end of the front longitudinal beam is not an integrated piece due to the fact that the front section reinforcing plate 2 and the rear section reinforcing plate 3 are not integrated, a region with weaker strength is generated at the joint 4 of the front section reinforcing plate 2 and the rear section reinforcing plate 3, and at the moment, a bent deformation is generated at the joint 4 of the front section reinforcing plate 2 and the rear section reinforcing plate 3 to absorb energy in the whole vehicle collision process, as shown in fig. 3. As is known to all, in the vehicle collision process, the energy absorption and the intrusion amount are contradictory, the intrusion amount of a whole vehicle firewall is increased when the front section of the front-side beam rear-end connecting piece deforms, and the lower limb space of a passenger is reduced, but the connecting position of the front section reinforcing plate 2 and the rear section reinforcing plate 3 of the front-side beam rear-end connecting piece is changed, so that the deformation of the front-side beam rear-end connecting piece can be effectively avoided from occurring in relevant areas (such as toes, heels and the like) influencing the lower limb injury of the passenger, and the purposes of absorbing the energy generated by collision and not influencing the integration of the lower limb safety system of the passenger are.
The utility model discloses under the prerequisite that does not influence original automobile body design and take the travelling comfort, bump in-process automobile body acceleration and keep passenger low limbs space integrality before can suitably reducing to effectively promoted whole car security performance, guaranteed lower cost and better system integration nature simultaneously.
The utility model discloses thereby preceding longeron rear end connecting piece suitably warp the energy that absorbs the collision process reach the purpose that reduces whole car acceleration, avoid the position in passenger required space of low limbs when the design of preceding longeron rear end connecting piece reinforcing plate structure guarantees that front longitudinal rear end body warp, reached and to have reduced whole car acceleration and can guarantee the purpose in passenger low limbs space again. Therefore, the connecting piece at the rear end of the front longitudinal beam can be deformed to consume energy and reduce the acceleration of the collision of the whole vehicle, and the lower space of a passenger can be ensured, so that the performance of protecting the passenger is improved.
The utility model discloses with lower cost and the effectual injury that reduces passenger in the preceding accident of bumping, improved the security performance of vehicle with simple structure.
The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements of the method concept and the technical solution of the present invention can be made without modification, or the present invention can be directly applied to other occasions without modification, and is within the protection scope of the present invention.
Claims (3)
1. A connecting piece structure at the rear end of a front longitudinal beam of an automobile comprises a connecting piece body, wherein the front end and the rear end of the connecting piece body are respectively connected with the front longitudinal beam and a bottom plate longitudinal beam; the junction of anterior segment reinforcing plate and back end reinforcing plate forms the guiding area that warp, and is located foot space front side top.
2. The connecting member structure of the rear end of the front side member of the automobile according to claim 1, wherein the connecting end of the front section reinforcing plate and the connecting end of the rear section reinforcing plate are respectively provided with a flange structure, and the flange structures of the two connecting ends are connected by spot welding to form a strength weak area as a deformation guide area.
3. The connecting member structure of the rear end of the front side member of the automobile according to claim 1 or 2, wherein a deformed guide groove or a hole structure processed with weakened strength is further provided at a junction of the front section reinforcing plate and the rear section reinforcing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241666.4U CN209921427U (en) | 2019-02-26 | 2019-02-26 | Connecting piece structure of rear end of automobile front longitudinal beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920241666.4U CN209921427U (en) | 2019-02-26 | 2019-02-26 | Connecting piece structure of rear end of automobile front longitudinal beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209921427U true CN209921427U (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920241666.4U Active CN209921427U (en) | 2019-02-26 | 2019-02-26 | Connecting piece structure of rear end of automobile front longitudinal beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN209921427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111572642A (en) * | 2020-04-13 | 2020-08-25 | 吉利汽车研究院（宁波）有限公司 | Front longitudinal beam structure of engine room and automobile |
-
2019
- 2019-02-26 CN CN201920241666.4U patent/CN209921427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111572642A (en) * | 2020-04-13 | 2020-08-25 | 吉利汽车研究院（宁波）有限公司 | Front longitudinal beam structure of engine room and automobile |
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