The utility model content
The technical problems to be solved in the utility model provides floor panel behind a kind of vehicle body, can strengthen automobile rear floor intensity, solves the overweight problem of back floor panel again.
The technical problems to be solved in the utility model provides a kind of automobile, can strengthen automobile rear floor intensity, solves the overweight problem of back floor panel again.
Particularly, the utility model provides floor panel behind a kind of vehicle body, has the mounting hole that fuel tank and fuel charger are installed, and floor panel is provided with two walings in a lateral direction at least behind described vehicle body.
Preferably, the cooresponding waling that is provided with in a lateral direction of the position of mounting hole of the above fuel tank of floor panel and fuel charger behind described vehicle body.
Preferably, in the mounting hole both sides of described fuel tank and fuel charger waling is set all.
Preferably, behind described vehicle body floor panel buffer zone is set in a lateral direction, described buffer zone both sides all are provided with waling.
Preferably, floor panel is positioned at the flange that described automobile tail one side is provided for fixed car tailstock back wall behind the described vehicle body.
Preferably, the side that floor panel is positioned at described automobile both sides behind the described vehicle body is equipped with the flange that is used for fixing auto body left and right sides gusset.
Preferably, floor panel is an integral structure behind described reinforced rib and the described vehicle body.
Preferably, described reinforced rib is specially the lug boss that protrudes described reinforced rib adjacent surface downward or upward.
Preferably, the cross-sectional plane of described lug boss is similarly " several " font.
The utility model also provides a kind of automobile, comprises floor panel behind the vehicle body with mounting hole that fuel tank and fuel charger are installed, and floor panel is provided with two walings in a lateral direction at least behind described vehicle body.
Compare with above-mentioned prior art,, strengthened the impact strength of floor panel behind the vehicle body, do not need to use plate iron just can satisfy the requirement of impact strength very much because floor panel is provided with two walings in a lateral direction at least behind the utility model vehicle body.Because floor panel is gently more a lot of than the existing panel weight of plate iron very that adopts behind the described vehicle body of the utility model embodiment, corresponding oil consumption, the corresponding use cost that reduces the customer of having reduced.
The specific embodiment
The utility model provides floor panel behind a kind of vehicle body, can strengthen automobile rear floor intensity, solves the overweight problem of back floor panel again.
Specify embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 1 to Fig. 3, Fig. 1 is a floor panel structural representation behind the vehicle body described in the utility model; Fig. 2 is a floor panel front view behind the vehicle body described in the utility model; Fig. 3 is a floor panel lateral plan behind the vehicle body described in the utility model.
Floor panel 1 behind the described vehicle body of the utility model embodiment has the fuel tank mounting hole 2 of installation and fuel charger mounting hole 3, and the horizontal direction of floor panel 1 is that two walings 5 are set on the vehicle-body width direction at least behind described vehicle body.
Because floor panel 1 is provided with two walings 5 in a lateral direction at least behind the utility model vehicle body, has strengthened the impact strength of floor panel 1 behind the vehicle body, do not need to use plate iron just can satisfy the requirement of impact strength very much.Because floor panel 1 is gently more a lot of than the existing panel weight of plate iron very that adopts behind the described vehicle body of the utility model embodiment, corresponding oil consumption, the corresponding use cost that reduces the customer of having reduced.And since at least two walings 5 that increase can with floor panel one-shot forming behind the described vehicle body, production technology is simple, is convenient to processing.
Owing to when after vehicle takes place, bumping, following two kinds of situations may occur:
When after bump energy a little less than because the reinforced rib 5 that back floor panel 1 is provided with and back floor panel as a panel piece, have certain rigid and intensity, reinforced rib 5 can discharge the collision energy buffering, thereby has protected vehicle not to be damaged.
When after to bump energy very powerful, the reinforced rib 5 in the floor panel 1 of described back will guarantee vehicle safety thereby fully absorb Impact energy at specific setting regions generation warpage.
Be out of shape owing to body tail absorbs Impact energy, the vehicle body after the distortion directly pushes down to the infringement fuel tank, thereby very easily initiation potential threatens the passenger.The described fuel tank mounting hole 2 of floor panel 1 is in a lateral direction cooresponding behind described vehicle body, and waling 5 can be set.Because floor panel 1 was almost in a lateral direction same after the mounting hole 3 of described fuel tank mounting hole 2 and described fuel charger was positioned at described vehicle body.The described fuel tank mounting hole 2 cooresponding walings 5 that are provided with in a lateral direction of floor panel 1 behind described vehicle body, promptly mounting hole 3 positions of floor panel 1 the above fuel charger are in a lateral direction cooresponding behind described vehicle body, and waling 5 is set.Like this when Impact energy is big, the waling 5 that mounting hole 3 positions of floor panel 1 fuel tank mounting hole 2 and fuel charger are provided with in a lateral direction behind the vehicle body guarantees that the member is not subjected to enormous impact in company with body distortion so that absorb energy, guarantees that fuel oil system is not subjected to serious extruding damage.
The utility model preferred embodiment mounting hole 3 positions of floor panel 1 the above fuel tank mounting hole 2 and fuel charger behind described vehicle body are in a lateral direction cooresponding, and in the both sides of the mounting hole 3 of described fuel tank mounting hole 2 and fuel charger waling are set all.Like this when Impact energy is big, in company with body distortion, can absorb energy at the waling 5 of mounting hole 3 both sides of fuel tank mounting hole 2 and fuel charger better, guarantee that better fuel oil system is not subjected to serious extruding damage.
The utility model preferred embodiment, behind described vehicle body floor panel 1 buffer zone 4 is set in a lateral direction, described buffer zone 4 both sides all are provided with waling 5.Because the described reinforced rib 5 of preferred embodiment do not run through longitudinal direction, the dual-side of floor panel 1 is installed the position of rear wheel after partially reinforced rib 5 all is not set after being positioned at vehicle body, and the zone that reinforced rib 5 is not set herein is a buffer zone 4.When Impact energy was big, buffer zone 4 can fully absorb body distortion, thereby guarantees that better the member is not subjected to enormous impact like this.
Floor panel 1 is positioned at the flange 7 that described automobile tail one side is provided for fixed car tailstock gusset behind described vehicle body.The side that floor panel 1 is positioned at described automobile both sides behind described vehicle body is equipped with the flange 7 that is used for fixing auto body left and right sides gusset.Floor panel 1 is preferably an integral structure behind described reinforced rib 5 and the described vehicle body, is convenient to processing.
Issue according to the Chinese National Standards cuncil, be about to the state compulsory standard " bumping the fuel oil system safety requirements behind the manned vehicle " implemented on July 1st, 2007 (GB20072-2006), use current Ansa and the Hypermesh that uses always in the world to carry out the division of finite element grid.Use large-scale finite element to carry out the analog simulation analysis.The analysis showed that, behind the vehicle body described in the utility model the absorption of floor panel 1 in collision the collision energy of about 20% (being only second to floor side member), thereby play very important energy-absorbing function, thereby make vehicle finally smoothly by bumping test behind the real vehicle.
In order to be illustrated more clearly in the concrete structure of reinforced rib 5, see also Fig. 4 to Fig. 8.Fig. 4 is a floor panel A-A face cutaway view behind the vehicle body shown in Figure 1; Fig. 5 is a floor panel B-B face cutaway view behind the vehicle body shown in Figure 1; Fig. 6 is a floor panel C-C face cutaway view behind the vehicle body shown in Figure 1; Fig. 7 is a floor panel D-D face cutaway view behind the vehicle body shown in Figure 1; Fig. 8 is a floor panel E-E face cutaway view behind the vehicle body shown in Figure 1.
A-A face cutaway view shown in Figure 4 is clearly expressed the structure of the longitudinal direction of reinforced rib 5.On the length direction of reinforced rib 5, be specially the lug boss of the described reinforced rib adjacent surface of downward protrusion.The cross-sectional plane of described lug boss is similarly " several " font, and left-right symmetric basically.Described lug boss generally forms by punching course.
B-B face cutaway view shown in Figure 5, the cutaway view of the cooresponding horizontal direction in mounting hole 3 positions of promptly described fuel tank mounting hole 2 and fuel charger.The arrangement that is arranged as the preferred embodiment of the present invention of reinforced rib 5 shown in this figure.Exist buffer zone 4 between C-C face and the D-D face.The D-D mask body is for installing the position of rear wheel, almost equidistantly in the position of D-D face is provided with most reinforced ribs 5.The utility model preferred embodiment is provided with 11 reinforced ribs 5 in the position of D-D face.
Can clearly be seen that by Fig. 4 to Fig. 8 four of floor panel 1 sides all are provided with flange 7 behind the vehicle body,, be connected with miscellaneous part with back wall by gusset again so that gusset and back wall are installed.Floor panel 1 had welding process preferably after being provided with of flange 7 can guarantee vehicle body, made to become as a whole behind the floor panel 1 and rear floor frame welding behind the vehicle body, better brought into play back floor panel after bump the safety precaution effect of process.
Described reinforced rib 5 is specially the lug boss that protrudes described reinforced rib adjacent surface downward or upward on Width.The cross-sectional plane of described lug boss is similarly " several " font, and left-right symmetric basically.B-B face and the described lug boss of C-C face are specially the lug boss of the described reinforced rib adjacent surface of downward protrusion.Exist buffer zone 4 between C-C face and the D-D face.D-D face and the described lug boss of E-E face are specially the lug boss of described reinforced rib adjacent surface protruding upward.
Floor panel 1 whole employing punch forming behind the vehicle body described in the utility model, reinforced rib 5 is floor panel 1 moulding behind vehicle body.Because floor panel 1 is only used a part behind the vehicle body, avoided in the sort of many part punchings of employing process the problem of serious waste material.Floor panel 1 is only used a part behind the vehicle body described in the utility model, has simplified welding process, has avoided the many part weldings of the sort of employing process complicated problems, has improved the welding efficiency and the quality of production greatly.
The floor panel material can adopt the common cold-rolling steel of 0.8/Dc04 behind the vehicle body described in the utility model, and punching press and welding production technology are mature and stable, and productive costs is low.
The floor panel stock utilization can reach 60% behind the vehicle body described in the utility model, and the stock utilization of car production industry 40-50% has been higher than the auto trade average level greatly relatively.
Floor panel 1 passes through to hang welding generator with rear floor frame after punch forming behind the vehicle body described in the utility model, is welded into the back floor assembly.
By the layout of reinforced rib on the floor, back, floor panel 1 can absorb bigger collision energy as a panel piece behind the vehicle body, guarantees back floor panel panel fuel tank not redeformation of position, thereby has guaranteed fuel tank safety.
Adopt behind the vehicle body described in the utility model behind the floor panel 1, make that automobile rear floor panel 1 part is simply single, material is common, and production technology is simple, the yield rate height, thereby have excellent economy.
The utility model also provides a kind of automobile, comprises having floor panel 1 behind the vehicle body that fuel tank mounting hole 2 and fuel charger mounting hole 3 are installed, and floor panel 1 is provided with two walings 5 in a lateral direction at least behind described vehicle body.Described reinforced rib 5 optimal ways, discontinuous on the longitudinal direction of floor panel 1 behind the described vehicle body.
Automobile described in the utility model can have floor panel 1 behind above-mentioned any vehicle body.
The above only is one of preferred plan of the present utility model, should be pointed out that for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also carry out some improvement to the present invention,, these improvements and modifications also should be considered as protection domain of the present utility model.For example, as long as determined the material character of back floor panel, the total arrangement of critical size and reinforced rib, just can appropriate change the present invention in the cross section, the size of reinforced rib of this part, many features reach safety, low-cost requirement.