CN204279646U - Car body top cover structure - Google Patents
Car body top cover structure Download PDFInfo
- Publication number
- CN204279646U CN204279646U CN201420672735.4U CN201420672735U CN204279646U CN 204279646 U CN204279646 U CN 204279646U CN 201420672735 U CN201420672735 U CN 201420672735U CN 204279646 U CN204279646 U CN 204279646U
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- China
- Prior art keywords
- top cover
- crossbeam
- car body
- body top
- utility
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Abstract
The utility model provides a kind of car body top cover structure, belongs to auto parts and components field.The utility model comprises car body top cover and the crossbeam that is positioned on car body top cover and longitudinal rib, described crossbeam is provided with step around lightening hole, described step comprises First terrace and the second step face of staged connection, described step protrudes to described crossbeam end face direction, under described First terrace is located at described second step face by gradient face, described First terrace becomes 135 ° of angles with described gradient face.The quantity of described crossbeam and described longitudinal rib is respectively many, and described longitudinal rib cross-sectional plane is triangle, and the setting that raises up.The beneficial effects of the utility model are: improve top cover bulk strength and rigidity, add car inner space simultaneously; Alleviate stress to concentrate, add the dent resistance of top cover, alleviate the weight of the utility model car body top cover structure, again reduce cost, improve cost performance greatly.
Description
Technical field
The utility model relates to a kind of car body top cover structure, belongs to auto parts and components field.
Background technology
Micro-surface vehicle body cap structure (see Fig. 1) common at present, because interior of body space requirement is large and the design requirement of car load low cost, car body top cover assembly is from front windshield upper end to tail-gate parting, and overlay area is large and flat, has following problem:
1, not, pressurized produces stress and concentrates, and easily occurs local dent for top cover bulk strength and rigidity;
2, the wide flat-shaped condition of top cover easily causes top accumulated snow at sleety weather, occurs top cover local collapse under ice and snow admixture;
3, original top cover assembly is designed to improve top cover pressure resistance, and by increasing the material thickness of top cover assembly part, cost increasing degree is comparatively large, does not meet the design concept of low cost, high value.
Current automobile two principal themes is namely: cost and safety, becomes each major company and weighs the good and bad main standard of scheme ensureing how to save under vehicle body has the condition of enough intensity and rigidity cost.Therefore, we need ensureing, on the basis solved the problem, to accomplish the location requirement both meeting micro-surface vehicle type, again as much as possible by low cost.
Summary of the invention
Inadequate for solving strength and stiffness in prior art, cause the problem of top cover local dent and interior of body space requirement, the utility model provides a kind of car body top cover structure.
The utility model comprises car body top cover and the crossbeam that is positioned on car body top cover and longitudinal rib, described crossbeam is provided with step around lightening hole, described step comprises First terrace and the second step face of staged connection, described step protrudes to described crossbeam end face direction, under described First terrace is located at described second step face by gradient face.Be conducive to manufacturing and performance of gaining in strength, and make vehicle interior height space increase 5mm.
The utility model makes further improvements, and the quantity of described crossbeam and described longitudinal rib is respectively many, and described longitudinal rib cross-sectional plane is triangle, and the setting that raises up.Cross-sectional plane changes triangle into by circle, and the stress of top cover is decomposed to triangle both sides, and avoid stress to concentrate, actv. adds dent resistance and the rigidity of top cover.
The utility model makes further improvements, and the quantity of described crossbeam is 5, starts to set gradually first crossbeam, second cross beam, the 3rd crossbeam, the 4th crossbeam and the 5th crossbeam from vehicle head end, and the quantity of described longitudinal rib is 7 and spaced set.
The utility model makes further improvements, and the thickness of first crossbeam and second cross beam is 0.8mm, makes crossbeam weight saving 0.2Kg.
The utility model makes further improvements, and the width of described 3rd crossbeam, the 4th crossbeam and the 5th crossbeam is 60mm, and car body top cover structural weight always alleviates 0.3Kg.With the improvement of entablatrance, on the basis meeting integral rigidity, alleviate the weight of the utility model car body top cover structure, again reduce cost.
The utility model makes further improvements, and described crossbeam material is BLC steel band, is changed to BLC steel band by BLD steel band, and the material cost of crossbeam reduces by 1.15 yuan/car.
Compared with prior art, the beneficial effects of the utility model are: improve top cover bulk strength and rigidity, add car inner space simultaneously; Alleviate stress to concentrate, add the dent resistance of top cover, alleviate the weight of the utility model car body top cover structure, again reduce cost, improve cost performance greatly.
Accompanying drawing explanation
Fig. 1 is prior art car body top cover assembly structure schematic diagram;
Fig. 2 is prior art car body top cover structural representation;
Fig. 3 is the utility model car body top cover structural representation;
Fig. 4 is the utility model beam structure schematic diagram;
Fig. 5 is Fig. 4 A-A profile;
Fig. 6 is that prior art crossbeam is at lightening hole central longitudinal section-drawing.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further details.
Consider the required vehicle functional requirement met of car body top cover structure, for example: top cover body shape will create best inner space, bodywork parts stamped convenient, the layout of crossbeam meets the installation function demand of top steaming, lamp etc., the aspect such as welding process, assembly technology of top cover assembly and body assembly, with low cost high value for principle, formulate following scheme:
One, in the scope that overall dimensions of a car defines, by the anti-crushing by snow model of top cover, analyze top cover radian, moulding reinforced rib (referring to back timber of the present utility model and longitudinal rib) resists the impact of recessed intensity, top cover radian (or saying action) and the reinforced rib of formulating vehicle arrange recommended value, input to Automobile body shape-designing region, make assembly possess inborn stronger dent resistance.
Two, continue to utilize anti-crushing by snow analytical model, arrange crossbeam position in the direction from front to rear of a vehicle body, take into account the layout demand of assembly parts position, former section of beam is optimized simultaneously, reach and best interior space requirement is provided.
Three, the rear moulding of optimization and crossbeam arrangement is utilized, set up the anti-crushing by snow analytical model of final top cover assembly, optimization on materials'use is carried out to correlated parts, comprises reduction material rate, subtract thickness etc., be met the vehicle least cost scheme of anti-crushing by snow performance.
Four, carry out vehicle trial-production according to the scheme of setting, do actual anti-crushing by snow checking according to experimental standard, use after reaching target, finally form the technical solution of the utility model.
As shown in Figure 3-Figure 5, the utility model comprises car body top cover 1 and the crossbeam 2 that is positioned on car body top cover and longitudinal rib 3, described crossbeam 2 is provided with step around lightening hole 4, described step comprises First terrace 211 and the second step face 213 of staged connection, described step protrudes to described crossbeam 2 end face direction, and described First terrace 211 is located at described second step face 213 times by gradient face 212.
Described First terrace 211 and 212 one-tenth, described gradient face 135 ° of angles, are conducive to the gravity of the top steaming, lamp etc. disperseing upper pressure and bottom to install.
Prior art crossbeam 2 around lightening hole, as shown in Figure 6, be located on described second step face 213 by gradient face 212 in vertical section by described First terrace 211.Can be found out by the contrast of Fig. 5 and Fig. 6, adopt this structure of the utility model, the layout of crossbeam 2 can be made to meet the installation function demand of top steaming, lamp etc., improve bearing capacity, increase the strength and stiffness of car body top cover, and make vehicle interior height space increase 5mm.
As shown in Figures 2 and 3, described crossbeam 2 is 5, start to set gradually first crossbeam 21, second cross beam 22, the 3rd crossbeam 23, the 4th crossbeam 24 and the 5th crossbeam 25 from vehicle head end, the quantity of described longitudinal rib 3 increases to 7 by 5, and described longitudinal rib 3 cross-sectional plane is triangle, and the setting that raises up, cross-sectional plane changes triangle into by circle, the stress of top cover is decomposed to triangle both sides, and avoid stress to concentrate, actv. adds dent resistance and the rigidity of top cover.
The thickness of first crossbeam 21 and second cross beam 22 is reduced to 0.8mm by 1mm, makes crossbeam weight saving 0.2Kg.
The width of the 3rd crossbeam 23, the 4th crossbeam 24 and the 5th crossbeam 25 is decreased to 60mm by 70mm, and car body top cover structural weight always alleviates 0.3Kg.With the improvement of entablatrance, on the basis meeting integral rigidity, alleviate the weight of the utility model car body top cover structure, again reduce cost.
The layout of crossbeam 2 and structural development, be conducive to rigidity and reduce beam taking up room, increase inner space.
Described crossbeam 2 material is BLC steel band, is changed to BLC steel band by BLD steel band, and the material cost of crossbeam reduces by 1.15 yuan/car.
BLC, BLD are the material mark of steel plate/steel band, and steel plate and steel band are distinguished as shown in table 1 by purposes, and concrete material standard is shown in Baosteel standard " BQB408-2009 punching press cold continuous rolling steel plate and steel band ".
| The trade mark | Purposes |
| BLC | General use |
| BLD | Punching press is used |
| BUSD | Deep-draw is used |
| BUFD | Special deep-draw is used |
| BSUFD | Ultra-deep punching is used |
Table 1 steel plate and the steel band trade mark and purposes are distinguished
Do actual anti-crushing by snow checking by top cover anti-crushing by snow model and according to experimental standard, the utility model makes the product development of top cover assembly avoid repeatability design, can shorten about one month by moulding to data publication.Meanwhile, the technical solution of the utility model makes car body top cover structure meet micro-surface vehicle type compressive property, brings top cover to resist the lifting of the performances such as recessed, mode simultaneously, improves the cost performance of product.
The detailed description of the invention of the above is better embodiment of the present utility model; not limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this detailed description of the invention, and all equivalence changes done according to the utility model are all in protection domain of the present utility model.
Claims (7)
1. car body top cover structure, the crossbeam (2) comprising car body top cover (1) and be positioned on car body top cover (1) and longitudinal rib (3), it is characterized in that: described crossbeam (2) is provided with step around lightening hole (4), described step comprises First terrace (211) and second step face (213) of staged connection, described step protrudes to described crossbeam (2) end face direction, under described First terrace (211) is located at described second step face (213) by gradient face (212).
2. car body top cover structure according to claim 1, is characterized in that: described First terrace (211) becomes 135 ° of angles with described gradient face (212).
3. car body top cover structure according to claim 1, is characterized in that: the quantity of described crossbeam (2) and described longitudinal rib (3) is respectively many, and described longitudinal rib (3) cross-sectional plane is triangle, and the setting that raises up.
4. car body top cover structure according to claim 3, it is characterized in that: the quantity of described crossbeam (2) is 5, start to set gradually first crossbeam (21), second cross beam (22), the 3rd crossbeam (23), the 4th crossbeam (24) and the 5th crossbeam (25) from vehicle head end, the quantity of described longitudinal rib (3) is 7 and spaced set.
5. car body top cover structure according to claim 4, is characterized in that: the thickness of described first crossbeam (21) and second cross beam (22) is 0.8mm.
6. car body top cover structure according to claim 4, is characterized in that: the width of described 3rd crossbeam (23), the 4th crossbeam (24) and the 5th crossbeam (25) is 60mm.
7. car body top cover structure according to claim 1, is characterized in that: described crossbeam (2) material is BLC steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672735.4U CN204279646U (en) | 2014-11-12 | 2014-11-12 | Car body top cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420672735.4U CN204279646U (en) | 2014-11-12 | 2014-11-12 | Car body top cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204279646U true CN204279646U (en) | 2015-04-22 |
Family
ID=52862833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420672735.4U Expired - Fee Related CN204279646U (en) | 2014-11-12 | 2014-11-12 | Car body top cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204279646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105956260A (en) * | 2016-04-29 | 2016-09-21 | 上汽通用五菱汽车股份有限公司 | Automobile top cover structure optimization method |
-
2014
- 2014-11-12 CN CN201420672735.4U patent/CN204279646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105956260A (en) * | 2016-04-29 | 2016-09-21 | 上汽通用五菱汽车股份有限公司 | Automobile top cover structure optimization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20201112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |