CN207758736U - A kind of automobile plastic back buffer beam - Google Patents
A kind of automobile plastic back buffer beam Download PDFInfo
- Publication number
- CN207758736U CN207758736U CN201721818947.9U CN201721818947U CN207758736U CN 207758736 U CN207758736 U CN 207758736U CN 201721818947 U CN201721818947 U CN 201721818947U CN 207758736 U CN207758736 U CN 207758736U
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- waist
- boss
- upper bottom
- side connector
- reinforcing ribs
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Abstract
The utility model is related to a kind of automobile plastic back buffer beams, belong to back buffer beam for automobile.Plastic body is in isosceles trapezoid, there are two upper bottom reinforcing ribs straight with upper dolly inside upper bottom, there are three left side reinforcing ribs vertical with left waist inside left waist, there are three right side reinforcing ribs vertical with right waist inside right waist, plastics both sides connector is fixedly connected with two waist front ends respectively, both sides connector side longeron tie point, connector have two inside left boss, floor to be connect respectively with two left boss with waist junction.Advantage is structure novel, reduces weight, the lightweight for realizing vehicle, reduces oil consumption, per the longeron tie point uniform force of side four, avoids stress concentration, absorb collision energy to the greatest extent, reduce intrusion volume；Make collision prevention girders uniform force, reduces stress concentration, improve the security performance of vehicle.
Description
Technical field
The utility model is related to a kind of back buffer beam for automobile.
Background technology
With the application of light weight material in automobile, model engineering plastic is widely used in auto parts, and Liang Li is hit after automobile
It is connect with longeron with bolt, low speed collision absorbs energy using energy-absorption box, reduces the damaged condition of vehicle, and when high velocity impact transmits
Energy is to longeron.
Automobile carries out in low speed impact, and according to GB17654-1998 standards, head-on crash speed is 4km/h, due to
Farther out apart from left-right longeron tie point, plastics crossbeam is freely-supported beam model to impinger impingement position in collision process, and midpoint becomes
Shape is maximum, generates larger intrusion volume, causes the damage of the other parts of automobile.
Traditional plastics back buffer beam is in order to reach performance identical with metal collision prevention girders, often using increase plastics crossbeam
The mode of wall thickness, the disadvantage is that：Product weight increases, difficult forming.
Invention content
The utility model provide automobile plastic back buffer beam, with solve presently, there are product weight increase, difficult forming
The problem of.
The technical scheme adopted by the utility model is that：Plastic body is in isosceles trapezoid, and the interior angle of upper bottom and waist is 145 degree,
There are two upper bottom reinforcing ribs straight with upper dolly inside upper bottom, there are three left side reinforcing ribs vertical with left waist inside left waist, it is right
There are three right side reinforcing ribs vertical with right waist, plastics left side connector to be fixedly connected with left waist front end inside waist, which connects
Junctor is parallel with upper bottom, which has left-hand stringer tie point two, left side connector and left waist junction oriented
Two interior left boss, two left-hand stringer tie points one are located on left boss, and left floor connects with two left boss respectively
It connects, connector is fixedly connected with right waist front end on the right side of plastics, and the right side connector is parallel with upper bottom, which has
Right-hand stringer tie point two, right side connector have two inside right boss, two right-hand stringer tie points with right waist junction
One is located on right boss, and right floor is connect with two right boss respectively；
The cross section of the ontology is " W " shape, and midline has inwardly protruded reinforcing rib.
The utility model has the advantages that structure novel, makes full use of the shaping characteristic of plastic part, pass through ontology beam cross section
Design, the layout of reinforcing rib, reach mechanical property requirements identical with metal material, the light weight for reducing weight, realizing vehicle
Change, reduce oil consumption；The shape of ontology beam uses trench structure, section to use W type structure types, increase bending stiffness, generates
Relatively small deformation；Boss structure is all made of at left and right connector installation point, two boss are connected using floor, guide stress
Transmission, make the longeron tie point uniform force of every side four, avoid stress concentration, absorb collision energy to the greatest extent, reduce
Intrusion volume；Make collision prevention girders uniform force, reduces stress concentration, improve the security performance of vehicle.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
It is front view that Fig. 2, which is the utility model,；
Fig. 3 is the cross section of the utility model ontology.
Specific implementation mode
Plastic body 1 is in isosceles trapezoid, and the interior angle of upper bottom 101 and waist is 145 degree, has two and upper bottom inside upper bottom 101
Vertical upper bottom reinforcing rib（11）, have three left side reinforcing ribs 2 vertical with left waist inside left waist 102, have three inside right waist 103
The item right side reinforcing rib 7 vertical with right waist, connector 5 is fixedly connected with left waist front end on the left of plastics, the left side connector 5 with it is upper
Bottom is parallel, which has left-hand stringer tie point 24, left side connector 5 to have inside two with left waist junction
A left boss（12）, two left-hand stringer tie points 1 are located at left boss（12）On, left floor 6 is convex with two left sides respectively
Platform（12）Connection, plastics right side connector 10 are fixedly connected with right waist front end, and the right side connector 10 is parallel with upper bottom, the right side
10 edge of connector has right-hand stringer tie point 29, right side connector 10 to have two inside right boss with right waist junction
（13）, two right-hand stringer tie points 1 are located at right boss（13）On, right floor（14）Respectively with two right boss（13）
Connection；
The cross section of ontology 1 is " W " shape, and midline is inwardly protruded reinforcing rib 104.
Operation principle：
When collide operating mode when, impinger is contacted with the initial velocity for 4km/h with the impingement area at upper bottom, the kinetic energy of generation
It is converted into the interior energy at bottom, upper bottom is because energy-absorbing is deformed, and stress is according to the guiding of left side reinforcing rib and right side reinforcing rib, edge
Disperse to both sides rapidly at 145 degree of angular direction with impingement area, while the cross sectional shape of left waist, right waist has larger rigidity, makes
The utility model generates smaller deformation relative to left-hand stringer four points of connection and right-hand stringer four points of connection, and both sides respectively connect
Contact can give birth to larger stress, and left and right floor connect with two left and right boss, can transmit stress, make uniform force respectively,
It avoids the stress concentration at tie point, reduces stress value, by simulation analysis and verification, impact force and intrusion volume fully meet whole
The performance requirement of vehicle.
Claims (2)
1. a kind of automobile plastic back buffer beam, it is characterised in that：Plastic body is in isosceles trapezoid, and the interior angle of upper bottom and waist is 145
It spends, has two upper bottom reinforcing ribs straight with upper dolly inside upper bottom, have three left side reinforcing ribs vertical with left waist inside left waist,
There are three right side reinforcing ribs vertical with right waist, plastics left side connector to be fixedly connected with left waist front end inside right waist, the left side
Connector is parallel with upper bottom, which has left-hand stringer tie point two, left side connector to have with left waist junction
Two inside left boss, two left-hand stringer tie points one are located on left boss, left floor respectively with two left boss
Connection, plastics right side connector are fixedly connected with right waist front end, and the right side connector is parallel with upper bottom, the right side connector edge
There are right-hand stringer tie point two, right side connector to have two inside right boss, two right-hand stringer connections with right waist junction
Point one is located on right boss, and right floor is connect with two right boss respectively.
2. a kind of automobile plastic back buffer beam according to claim 1, it is characterised in that：The cross section of the ontology is
" W " shape, midline have inwardly protruded reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721818947.9U CN207758736U (en) | 2017-12-22 | 2017-12-22 | A kind of automobile plastic back buffer beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721818947.9U CN207758736U (en) | 2017-12-22 | 2017-12-22 | A kind of automobile plastic back buffer beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207758736U true CN207758736U (en) | 2018-08-24 |
Family
ID=63188337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721818947.9U Active CN207758736U (en) | 2017-12-22 | 2017-12-22 | A kind of automobile plastic back buffer beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207758736U (en) |
-
2017
- 2017-12-22 CN CN201721818947.9U patent/CN207758736U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 130000 888 Shunda Road, Changchun hi tech Development Zone, Jilin Patentee after: CHANGCHUN YINGLI AUTOMOTIVE INDUSTRY CO., LTD. Address before: 130000 888 Shunda Road, Changchun hi tech Development Zone, Jilin Patentee before: CHANGCUN ENGLEY AUTOMOBILE INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |