CN202345788U - Vehicle body floor structure - Google Patents
Vehicle body floor structure Download PDFInfo
- Publication number
- CN202345788U CN202345788U CN2011203543143U CN201120354314U CN202345788U CN 202345788 U CN202345788 U CN 202345788U CN 2011203543143 U CN2011203543143 U CN 2011203543143U CN 201120354314 U CN201120354314 U CN 201120354314U CN 202345788 U CN202345788 U CN 202345788U
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- Prior art keywords
- vehicle body
- body floor
- floor structure
- utility
- model
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Abstract
The utility model discloses a vehicle body floor structure, wherein a plurality of bulges are arranged on the vehicle body floor. The vehicle body floor structure has the advantages of simplicity in structure, convenience in repair, low cost, high reliability and wide scope of application, and the area where problem is brought about can be determined by analysis and calculation.
Description
Technical field
The utility model relates to the Vehicle Engineering field, and more particularly, it is the automobile body floor structure.
Background technology
Manufacturer and user are increasingly high to car load NVH performance requriements at present, and body platform requires quite high as crew module's main body to its vibration isolation, decrease of noise functions.Usually, this dignity of body platform is bigger, though arranged reinforced rib, damping panel etc. in the part in order to reinforcement, phenomenons such as resonance take place because of structure problem some fine region often, produce noise without fixed duties etc.Chinese patent publication number CN201283901Y, in open day on August 5th, 2009, the name of utility model is called a kind of front wall board of automobile; This application case discloses a kind of front wall board of automobile, its be with about front panel and front-wheel bulge back segment with preceding floor leading portion about integral body strike out a part, to reduce welding; Strengthen the front panel sealing reliability, promote car load NVH performance, and on front panel, have at least one mounting hole; Strengthen leak tightness and structural integrity, further improve automobile NVH effect.This utility model weak point is big to the integral structure change religion of body platform, and the cost religion of lifting is many, and some fine region resonates phenomenons such as generation noise easily.
The utility model content
The purpose of the utility model is to solve body platform to change greatly when reducing resonance with noise, can not be applied to all scopes of body platform.Provide a kind of and can well solve body platform resonance and noise problem, and can be applicable to the vehicle body floor structure of any one fine region of body platform.
In order to solve the problem of above-mentioned existence, the utility model adopts following proposal, a kind of vehicle body floor structure, and said body platform is provided with some convexities.On body platform, increase several convexities, changed floor original resonance frequency herein, solve fine region, produce phenomenons such as noise without fixed duties because structure problem resonates.This structure is very simple, finds the resonance point on floor through cae analysis and finite element analysis, on mould, makes tiny change then and just can realize, and is convenient and practical.
As preferably, described convexity is semisphere.Hemispheric bulge-structure is stable, and the design of required change is little, and the intensity of body platform itself is not had too many influence.
As preferably, described convexity is a kind of trapezoid boss.
As preferably, the height of described convexity is 5mm ~ 7.5mm.
As preferably, described projection diameter is 10mm ~ 15mm.The diameter of bulge-structure is smaller, can either solve body platform resonance and produce Effects of Noise, and can use in any trickle place of vehicle body, has enlarged the Applicable scope of bulge-structure.
The beneficial effect of the utility model is:
1. simple in structure, the convenient modification implemented.
2. cost is low.
3. reliability is high, but applied range.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the local enlarged diagram of the utility model;
Fig. 3 is the generalized section of the utility model.
Among the figure: protruding 1 body platform 2.
The specific embodiment
Below in conjunction with the Figure of description and the specific embodiment the utility model is further described.
Like Fig. 1, a kind of body platform bulge-structure at first carries out cae analysis and FEM calculation to automobile body floor 2, confirms the resonance point of body platform 2, finds the natural frequency of original body platform 2.At resonance point is that hemispheric convexity is set, and protruding diameter is 10mm, highly is 5mm.Protruding shape also can be a trapezoid boss.By the cae analysis and the FEM calculation of many wheels, obtain protruding 1 number and scope then.Through analytical calculation, obtain increasing by 9 convexities 1 at the first half of automobile body floor 2, wherein 5 convexities 1 are distributed in the top of body platform pit, both sides that are distributed in body dent of all the other 4 convexities, 1 average symmetries.Convexity is problems such as resonance that semisphere so both solved body platform, noise, also changes less to the original intensity of body platform.The utility model can also use the structure of boss.
Claims (5)
1. a vehicle body floor structure is characterized in that, said body platform is provided with some convexities.
2. a kind of vehicle body floor structure according to claim 1 is characterized in that described convexity is semisphere.
3. a kind of vehicle body floor structure according to claim 1 is characterized in that, described convexity is a kind of trapezoid boss.
4. according to claim 1 or 2 or 3 described a kind of vehicle body floor structures, it is characterized in that the height of described convexity is 5mm ~ 7.5mm.
5. a kind of vehicle body floor structure according to claim 2 is characterized in that, described projection diameter is 10mm ~ 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203543143U CN202345788U (en) | 2011-09-21 | 2011-09-21 | Vehicle body floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203543143U CN202345788U (en) | 2011-09-21 | 2011-09-21 | Vehicle body floor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202345788U true CN202345788U (en) | 2012-07-25 |
Family
ID=46534809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203543143U Expired - Fee Related CN202345788U (en) | 2011-09-21 | 2011-09-21 | Vehicle body floor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202345788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150721A (en) * | 2016-03-03 | 2017-09-12 | 通用汽车环球科技运作有限责任公司 | Car body component for motor vehicle |
-
2011
- 2011-09-21 CN CN2011203543143U patent/CN202345788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150721A (en) * | 2016-03-03 | 2017-09-12 | 通用汽车环球科技运作有限责任公司 | Car body component for motor vehicle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20190921 |