CN209505878U - A kind of back floor side encloses reinforcement structure - Google Patents
A kind of back floor side encloses reinforcement structure Download PDFInfo
- Publication number
- CN209505878U CN209505878U CN201822272771.2U CN201822272771U CN209505878U CN 209505878 U CN209505878 U CN 209505878U CN 201822272771 U CN201822272771 U CN 201822272771U CN 209505878 U CN209505878 U CN 209505878U
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- CN
- China
- Prior art keywords
- rack body
- crimping
- reinforcement structure
- sides
- back floor
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Abstract
The utility model discloses a kind of back floor sides to enclose reinforcement structure, comprising: the rack body of rectangle tabular, and the side extensions to extend back from two long sides of rack body；Two short side forward folds of the rack body form the first crimping, and in obtuse angle, and the first crimping of two sides is mutually perpendicular to for first crimping and rack body；The two sides of the side extensions are parallel with the first crimping of respective side respectively, and chamfering is arranged in the cross-shaped portion of two sides.Above-mentioned back floor side encloses reinforcement structure, can play a supporting role during body movement, significantly can effectively resist body distortion, increases torsion stiffness, while realizing lightweight, reduces production cost to a certain extent.
Description
Technical field
The utility model relates to automotive body structure technical fields, and in particular to a kind of back floor side encloses reinforcement structure.
Background technique
As the popularized consumption person of automobile is continuously increased the understanding of automobile, the performance of automobile items is increasingly by people
Concern.White body rigidity is an important indicator of entire vehicle design, it determines vehicle resistance to deformation under external force
Ability, it is also relevant with the multinomial performance of vehicle, such as endurance quality, collision safety performance, handling stability energy and NVH performance
Deng.
The failure mode of white body is based on torsional fatigue, and when torsion stiffness deficiency, vehicle body under external force will hair
Biggish torsional deflection is given birth to, local weak point may fatigue rupture after reverse cyclic loadings.If body torsional rigdity is insufficient, traveling
When body distortion it is larger, may cause between each component of vehicle occur friction abnormal sound.White body torsion stiffness or white body are light
The important characterization of quantization degree when white body torsion stiffness deficiency, during vehicle turning driving, will affect the more of behaviour's automobile
Item performance.It thus requires Body in white frame structure that must have enough torsion stiffness, avoids the generation of the above problem.And it is current
Mainstay trend be the promotion body torsional rigdity as far as possible controlling cost and under the premise of weight.
In order to promote the torsional properties of Body in white frame structure, common method has at present: phase at change key structure
The material for closing part is thick, or reinforces to the part that torsion stiffness is affected.On the one hand these improved methods increase
Complete vehicle weight is unfavorable for the lightweight of vehicle body, on the other hand also will increase the manufacturing cost of bicycle, become with current mainstay
Gesture is runed counter to.Therefore, white body torsion stiffness can be improved by how providing one kind, while be able to achieve light-weighted, reduction manufacture again
The structure of cost is prior art problem to be solved.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of back floor sides to enclose reinforcement structure, during body movement
It plays a supporting role, significantly can effectively resist body distortion, increase torsion stiffness, while realizing lightweight, in certain journey
Production cost is reduced on degree.
A kind of back floor side encloses reinforcement structure, comprising: the rack body of rectangle tabular, and from the two long of rack body
The side extensions that avris extends back；Two short side forward folds of the rack body form the first crimping, and described the
In obtuse angle, and the first crimping of two sides is mutually perpendicular to for one crimping and rack body；The two sides of the side extensions respectively with
First crimping of respective side is parallel, and chamfering is arranged in the cross-shaped portion of two sides.
Above-mentioned back floor side encloses reinforcement structure, by welding by two sides of side extensions respectively with side wall and after
Floor links together, and for vehicle body during twist motion, distorting stress is transmitted to reinforcement structure above-mentioned by floor, then by
Reinforcement structure above-mentioned is transmitted to rear side wall and hubcap, carrys out resistance to deformation by rear floor and rear side wall merely before changing
Defect, the transmission path of traditional power is changed by newly increasing reinforcement structure, greatly reduces torsional displacement, into
And improve whole torsion stiffness；On the other hand, by the Optimal Structure Designing to reinforcement structure, cavity body structure is formed, and more
Place reinforces improving rigidity, biggish to improve whole rigidity, to play effective supporting role, energy in the process to body movement
Enough significant effective resistance body distortions, increase torsion stiffness, while the optimization to structure, lightweight are realized, to a certain degree
Upper reduction production cost.
Further, the position at the close edge of the rack body has the convex rib to front projection, can be improved knot
The overall stiffness of structure.
Further, the middle part of the rack body is equipped with waist-shaped hole, length direction of the waist-shaped hole along rack body
Arrangement；The layout of material is optimized, the material to stiffness contribution amount smaller part position is reduced, improves the utilization rate of material, more
It effectively realizes structure lightened, reduces production cost.
Further, the edge of the side extensions, which has, is parallel to outwardly extending second crimping of rack body；It mentions
High structural strength, and can increase the area being welded and fixed.
Further, there is the local convex body to front projection on second crimping, can be improved the local stiffness of structure.
Further, the rack body and side extensions are integrally formed；The modes one-pass molding such as punching press can be used, it is raw
It is convenient to produce, and reduces manufacturing cost.
In conclusion back floor side provided by the utility model encloses reinforcement structure, vehicle body change significantly can be effectively resisted
Shape increases torsion stiffness, while realizing lightweight, reduces production cost to a certain extent.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model embodiment；
Appended drawing reference:
1- rack body, the first crimping of 11-, 12- convex rib, 13- waist-shaped hole,
2- side extensions, 21- chamfering, the second crimping of 22-, the part 23- convex body.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.In the description of the present utility model application, it is to be understood that term " on ", "lower", "front", "rear",
"left", "right" etc., the orientation or positional relationship of instruction are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of retouching
State the utility model and simplify description, rather than the component of indication or suggestion meaning or structure must have a particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.
By white body torsion stiffness sensitivity analysis, the calculating and test of white body torsion stiffness are before white body
Damper applies the effect of vertical contrary a pair of of power, the certain freedom degree of rear wheel shock-absorbing device buffer stopper position constraint, so
The displacement of reference point on the damper of front and back is measured afterwards, and the rear portion hubcap of automobile nearby contributes the torsional displacement at the rear portion of automobile
Amount is maximum, and displacement is bigger, and rigidity is lower, if the position cannot effectively be controlled because reversing the displacement generated, the torsion of vehicle
Turning rigidity will reduce.Therefore, the utility model connecting portion of floor and side wall after white body is enclosed provided with back floor side
Reinforcement structure.
As shown in Figure 1, back floor side provided in this embodiment encloses reinforcement structure, comprising: the rack body of rectangle tabular
1, and the side extensions 2 to extend back from two long sides of rack body 1, the two form a "Ji" type on the whole
Structure.And two short side forward folds of rack body 1 form the first crimping 11, the first crimping 11 is with rack body 1 in blunt
Angle, and the first crimping 11 of two sides is mutually perpendicular to；The two sides of side extensions 2 are flat with the first crimping 11 of respective side respectively
Row, to connect respectively with the side wall of white body and rear floor, and chamfering 21 is finally arranged in the cross-shaped portion of two sides, to avoid side
The space with rear floor interconnecting piece is enclosed, avoids the occurrence of location conflicts, and convenient for welding.
In the present embodiment, also structure above-mentioned is advanced optimized, further promotes its rigidity and performance.Specifically,
Referring to Fig. 1, there can be the convex rib 12 to front projection in the position at the close edge of rack body 1, to improve the entirety of structure
Rigidity.The settable waist-shaped hole 13 in the middle part of rack body 1, waist-shaped hole 13 is arranged along the length direction of rack body 1, to optimize
The layout of material reduces the material to stiffness contribution amount smaller part position, improves the utilization rate of material, significantly more efficient realization
It is structure lightened, reduce production cost.The edge of side extensions 2 is arranged parallel to rack body 1 outwardly extending
Two crimpings 22 have the office to front projection to improve structural strength, and can increase the area being welded and fixed, and on the second crimping 22
Portion's convex body 23 can be improved the local stiffness of structure.
The aforementioned back floor side including rack body 1 and side extensions 2 encloses reinforcement structure, can be using punching press etc.
Mode one-pass molding, it is convenient for production, reduce manufacturing cost.
Above-mentioned back floor side encloses reinforcement structure, by welding by two sides of side extensions 2 respectively with side wall and
Floor links together afterwards, and for vehicle body during twist motion, distorting stress is transmitted to reinforcement structure above-mentioned by floor, then
Rear side wall and hubcap are transmitted to by reinforcement structure above-mentioned, resists merely and becomes by rear floor and rear side wall before changing
The defect of shape changes the transmission path of traditional power by newly increasing reinforcement structure, greatly reduces torsional displacement,
And then improve whole torsion stiffness；On the other hand, by the Optimal Structure Designing to reinforcement structure, cavity body structure is formed, and
Many places are reinforced improving rigidity, biggish to improve whole rigidity, to play effective supporting role in the process to body movement,
Body distortion significantly can be effectively resisted, increases torsion stiffness, while the optimization to structure, lightweight is realized, in certain journey
Production cost is reduced on degree.
In conclusion back floor side by adopting the above technical scheme encloses reinforcement structure, vehicle body significantly can be effectively resisted
Deformation increases torsion stiffness, while improving stock utilization, realizes lightweight, reduces production cost to a certain extent.
It should be noted that preferred embodiment above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should be managed
Solution: it can still modify to technical solution documented by previous embodiment, or to some or all of technologies
Feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and the utility model is real
The range of a technical solution is applied, should all be covered in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of back floor side encloses reinforcement structure characterized by comprising the rack body of rectangle tabular, and from bracket sheet
The side extensions that two long sides of body extend back；Two short side forward folds of the rack body form the first volume
Side, in obtuse angle, and the first crimping of two sides is mutually perpendicular to for first crimping and rack body；The two sides of the side extensions
Side is parallel with the first crimping of respective side respectively, and chamfering is arranged in the cross-shaped portion of two sides.
2. back floor side according to claim 1 encloses reinforcement structure, which is characterized in that the close edge of the rack body
Position have to front projection convex rib.
3. back floor side according to claim 1 encloses reinforcement structure, which is characterized in that the middle part of the rack body is equipped with
Waist-shaped hole, the waist-shaped hole are arranged along the length direction of rack body.
4. back floor side according to claim 1 encloses reinforcement structure, which is characterized in that the edge of the side extensions has
It is parallel to outwardly extending second crimping of rack body.
5. back floor side according to claim 4 encloses reinforcement structure, which is characterized in that have forward on second crimping
The local convex body of protrusion.
6. back floor side according to claim 1-5 encloses reinforcement structure, which is characterized in that the rack body and
Side extensions are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272771.2U CN209505878U (en) | 2018-12-29 | 2018-12-29 | A kind of back floor side encloses reinforcement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272771.2U CN209505878U (en) | 2018-12-29 | 2018-12-29 | A kind of back floor side encloses reinforcement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209505878U true CN209505878U (en) | 2019-10-18 |
Family
ID=68199067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822272771.2U Expired - Fee Related CN209505878U (en) | 2018-12-29 | 2018-12-29 | A kind of back floor side encloses reinforcement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209505878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823542A (en) * | 2019-11-06 | 2020-02-21 | 中车青岛四方机车车辆股份有限公司 | Shock absorber testing device and shock absorber testing method |
| CN110834671A (en) * | 2019-11-19 | 2020-02-25 | 奇昊汽车系统（苏州）有限公司 | Unilateral-deformation ODB support and automobile CCB support |
-
2018
- 2018-12-29 CN CN201822272771.2U patent/CN209505878U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823542A (en) * | 2019-11-06 | 2020-02-21 | 中车青岛四方机车车辆股份有限公司 | Shock absorber testing device and shock absorber testing method |
| CN110834671A (en) * | 2019-11-19 | 2020-02-25 | 奇昊汽车系统（苏州）有限公司 | Unilateral-deformation ODB support and automobile CCB support |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20201229 |