CN105313980A - Vehicle and bodywork for same - Google Patents
Vehicle and bodywork for same Download PDFInfo
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- CN105313980A CN105313980A CN201410373139.0A CN201410373139A CN105313980A CN 105313980 A CN105313980 A CN 105313980A CN 201410373139 A CN201410373139 A CN 201410373139A CN 105313980 A CN105313980 A CN 105313980A
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Abstract
The invention discloses a vehicle and bodywork for the same. The bodywork comprises a floor, two rear side members, a rear anti-collision beam, a first rear cross beam, a second rear cross beam, a third rear cross beam, C columns and a roof rear cross beam, wherein a C column lower end front connecting part and a C column lower end rear connecting part are constructed at the lower end of each C column, the C column lower end front connecting part is fixed with the rear side member on the corresponding side and the second rear cross beam, and the C column lower end rear connecting part is fixed with the rear side member on the corresponding side and the third rear cross beam. According to the bodywork for the vehicle, the bodywork is constructed to form first to third closed loops by the aid of the two rear side members and the first to third rear cross beams, energy produced in the vehicle impact process can be effectively absorbed, and the system safety is improved; meanwhile, the bodywork is constructed to form fourth to fifth closed loops by the aid of the two C columns, the roof rear cross beam and the second to third rear cross beams, accordingly, two power transmission channels can be provided for bodywork torsion, and the torsional rigidity of the bodywork and the compressive strength of a roof are remarkably enhanced.
Description
Technical field
The present invention relates to field of automobile, specifically, particularly a kind of vehicle and the vehicle body for vehicle.
Background technology
Along with progress and the socioeconomic development of technology, automobile becomes the important tool of people's living trip gradually, and a large amount of automobile enters family life, becomes the irreplaceable consumables.Therefore, the traveling comfort of vehicle drive and stability are more and more subject to the common concern of consumers in general, determine the purchase intention of customer to a great extent.In addition, increasing of automobile, construction of traffic environment speed lags behind the speed that automobile increases, and it is not good to add people's custom of driving, and idea of abiding by the law is strong, and this all inevitably causes the increase of traffic accident quantity.Various countries are for the requirement increasingly stringent of vehicle safety performance, in order to improve vehicle collision safety performance, NCAP tissue in countries in the world establishes many standards to vehicle collision performance evaluation (as C-NCAP, E-NCAP, US-NCAP, IIHS etc.), and this proposes very high requirement to body construction design and constrained system performance.
Vehicle in rear impact collision, mainly through back buffer beam, rear energy-absorption box, floor side member energy-absorbing, so the integraty of tail structure framework is most important for the integraty of fuel tank area framework in afterbody high-speed crash.Generally in prior art can only form two horizontal C/LOOPs between body construction floor side member and rear floor crossmember, be unfavorable for the integraty ensureing fuel tank area framework in afterbody high-speed crash.Simultaneously in general body construction, between floor crossmember, C post, roof panel cross member, power transmission passage is single, is unfavorable for the NVH performance ensureing roof compressive strength, car body torsional stiffness and vehicle body.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.
For this reason, the present invention needs to propose a kind of vehicle body for vehicle, and the described vehicle body for vehicle has the good feature of safety performance.
The present invention also needs to propose a kind of vehicle with above-mentioned vehicle body.
Provide a kind of vehicle body for vehicle according to an aspect of the present invention, comprising: floor; Two floor side members, described two floor side members are spaced apart from each other along the transverse direction of described vehicle, and described two floor side members are fixed on described floor; Back buffer beam, described back buffer beam is fixed on the rear end of described two floor side members; First rear cross, the second rear cross and the 3rd rear cross, described first rear cross, described second rear cross and described 3rd rear cross are spaced apart from each other from front to back along the longitudinal direction of described vehicle, and the two ends of every root rear cross are fixed on described two floor side members respectively; C post, the lower end of described C post to be configured with before C post lower end connecting portion after connecting portion and C post lower end, before described C post lower end, the floor side member of connecting portion and corresponding side and described second rear cross are fixed, and behind described C post lower end, the floor side member of connecting portion and corresponding side and described 3rd rear cross are fixed; And top cap rear cross beam, the two ends of described top cap rear cross beam are fixed with the upper end of the described C post on left side and right side respectively.
According to the vehicle body for vehicle of the present invention, two floor side members and the first to the 3rd rear cross is utilized tail of body to be configured to along the longitudinal direction the first to the 3rd closed loop, effectively can absorb the energy that vehicle produces in knockout process, ensure that " fuel tank area " the i.e. integraty of described first closed loop in complete automobile collision, after making car load can meet high-speed crash GB20072-2006 and FMVSS310 manned vehicle, touch fuel oil system security requirement.Utilize two C posts, top cap rear cross beam and the second to the 3rd rear cross tail of body to be configured to the 4th closed loop and the 5th closed loop simultaneously, vehicle body is when reversing, two power transmission passages can be provided for vehicle body reverses, significantly can strengthen torsional stiffness and the roof compressive strength of vehicle body thus, the NVH performance of car load can also be improved, reduce vibration, reduce noise, improve the traveling comfort taken.
In an example of the present invention, described C post comprises: C post upper plate, and the upper end of described C post upper plate is connected with described top cap rear cross beam; C post lower plate, the upper end of described C post lower plate is connected with the lower end of described C post upper plate; Connecting panel before C post lower plate, before described C post lower plate, the upper end of connecting panel is connected with the bottom of described C post lower plate, and before described C post lower plate, connecting panel is also connected with described second rear cross with described floor side member; And connecting panel after C post lower plate, after described C post lower plate, the upper end of connecting panel is connected with the bottom of described C post lower plate, and after described C post lower plate, connecting panel is also connected with described 3rd rear cross with described floor side member; Before wherein said C post lower plate, connecting panel forms connecting portion before described C post lower end, and after described C post lower plate, connecting panel forms connecting portion behind described C post lower end.
Further, described C post lower plate comprises: C post lower plate body; And C post lower plate forelimb plate and C post lower plate hind leg plate, the upper end of described C post lower plate forelimb plate is connected with the lower end of described C post lower plate body respectively with the upper end of described C post lower plate hind leg plate, described C post lower plate forelimb plate relatively described C post lower plate body forward, to downward-extension, described C post lower plate hind leg plate relatively described C post lower plate body backward, to downward-extension.
Further, described C post lower plate also comprises: limb plate connecting panel, and described limb plate connecting panel is located between described C post lower plate forelimb plate and described C post lower plate hind leg plate.
Alternatively, before described C post lower plate, connecting panel is divided into vertical section and horizontal segment, being overlapped at least partially on described C post lower plate forelimb plate and being welded and fixed of vertical section of connecting panel before described C post lower plate, being overlapped on described floor side member and described second rear cross at least partially and being welded and fixed of horizontal segment of connecting panel before described C post lower plate.
Alternatively, after described C post lower plate, connecting panel is divided into vertical section and horizontal segment, being overlapped at least partially on described C post lower plate hind leg plate and being welded and fixed of vertical section of connecting panel after described C post lower plate, being overlapped on described floor side member and described 3rd rear cross at least partially and being welded and fixed of horizontal segment of connecting panel after described C post lower plate.
According to one embodiment of present invention, described floor side member is divided into the front section, stage casing part and the hindfoot portion that are connected successively, described first rear cross is connected to the front end place of the front section of two floor side members, between the center section part that each in described second rear cross and described 3rd rear cross is all connected to two floor side members divides, described back buffer beam is fixed on the rear end of the hindfoot portion of two floor side members, and described stage casing part is fixed by laser beam welding with described front section and described hindfoot portion respectively.
Preferably, be provided with rear energy-absorption box between the rear end of described back buffer beam and each described floor side member, described rear energy-absorption box is removably connected with described floor side member with described back buffer beam and described rear energy-absorption box.
Further, described second rear cross comprises: the second rear cross upper plate and the second rear cross lower plate, described second rear cross upper plate respectively with described floor, described floor side member and described C post lower end before connecting portion be welded and fixed, described second rear cross lower plate is welded and fixed with described floor, described floor side member respectively.
Provide a kind of vehicle according to another aspect of the present invention, comprise the above-mentioned vehicle body for vehicle.
Vehicle according to the invention, two floor side members and the first to the 3rd rear cross is utilized tail of body to be configured to along the longitudinal direction the first to the 3rd closed loop, effectively can absorb the energy that vehicle produces in knockout process, ensure that " fuel tank area " the i.e. integraty of described first closed loop in complete automobile collision, after making car load can meet high-speed crash GB20072-2006 and FMVSS310 manned vehicle, touch fuel oil system security requirement.Utilize two C posts, top cap rear cross beam and the second to the 3rd rear cross tail of body to be configured to the 4th closed loop and the 5th closed loop simultaneously, vehicle body is when reversing, two power transmission passages can be provided for vehicle body reverses, significantly can strengthen torsional stiffness and the roof compressive strength of vehicle body thus, the NVH performance of car load can also be improved, reduce vibration, reduce noise, improve the traveling comfort taken.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the sectional perspective structural representation of the vehicle body for vehicle according to an embodiment of the invention;
Fig. 1-a is the enlarged diagram at A place in Fig. 1;
Fig. 2 is the sectional perspective structural representation of the vehicle body for vehicle according to an embodiment of the invention;
Fig. 3 is the partial top view of the vehicle body for vehicle according to an embodiment of the invention, and wherein dotted line represents the power transmission passage of the first to the 3rd closed loop;
Fig. 4 is the birds-eye view of the floor side member of the vehicle body for vehicle according to an embodiment of the invention;
Fig. 5 is the partial left side view of the vehicle body for vehicle according to an embodiment of the invention;
Fig. 6 is the sectional perspective structural representation of the vehicle body for vehicle according to an embodiment of the invention, and wherein dotted line represents the power transmission passage of the 4th closed loop and the 5th closed loop;
The damage plan of Fig. 7 to be the vehicle body for vehicle according to an embodiment of the invention in operating mode be tail of body in 50km/h afterbody 100% Collision test;
The damage plan of Fig. 8 to be the vehicle body for vehicle according to an embodiment of the invention in operating mode be tail of body in 80km/h afterbody 70% Collision test.
Reference numeral:
Vehicle body 1,
Floor 129,
Floor side member 820, front section 821, stage casing part 822, hindfoot portion 823, reinforced rib 824, crumple groove 825,
Rear energy-absorption box 830, back buffer beam 840,
Rear cross 850, the first rear cross 851,
Second rear cross 852, second rear cross upper plate 852a, the second rear cross lower plate 852b,
3rd rear cross 853,
Top cap rear cross beam 860,
Rear shock absorber 870,
C post 167,
Connecting portion 901 before C post lower end,
Before C post lower end connecting portion 901 vertical section 901a, C post lower end before the horizontal segment 901b of connecting portion 901,
Connecting portion 902 behind C post lower end,
Behind C post lower end connecting portion 902 vertical section 902a, C post lower end after the horizontal segment 902b of connecting portion 902,
C post upper plate 903,
C post lower plate 904, C post lower plate body 904a, C post lower plate forelimb plate 904b, C post lower plate hind leg plate 904c, limb plate connecting panel 904d,
First closed loop 811, second closed loop the 812, three closed loop the 813, four closed loop the 814, five closed loop 815.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
The vehicle body 1 for vehicle according to the embodiment of the present invention is described in detail referring to Fig. 1-Fig. 8.
As Figure 1-Figure 8, according to the vehicle body 1 for vehicle of the embodiment of the present invention, comprising: floor 129, floor side member 820, back buffer beam 840, first rear cross 851, second rear cross 852, the 3rd rear cross 853, C post 167 and top cap rear cross beam 860.Wherein, floor side member 820 and C post 167 have two respectively, and (left and right directions as shown in Figure 1) is symmetrically distributed on floor 129 in the lateral direction.Particularly, two floor side members 820 are spaced apart from each other along the transverse direction (left and right directions as shown in Figure 1) of vehicle, and two floor side members 820 are fixed on floor 129.
In addition, also it should be noted that, in following description process, " corresponding side " refers to the structure being all positioned at left side or right side.Such as, before C post lower end, connecting portion 901 is fixed with the rear cross 850 being positioned at front side with the floor side member 820 of corresponding side respectively, before referring to the C post lower end on the left of being positioned at, connecting portion 901 is fixed with the left end of the rear cross 850 be positioned at above with the floor side member 820 being positioned at left side respectively, and before being positioned at the C post lower end on right side, connecting portion 901 is fixed with the right-hand member of the rear cross 850 be positioned at above with the floor side member 820 being positioned at right side respectively.
Specifically, back buffer beam 840 is fixed on the rear end of floor side member 820.Such as, the rear end of floor side member 820 is located at the left position place near back buffer beam 840.First rear cross 851, second rear cross 852 and the 3rd rear cross 853 are spaced apart from each other from front to back along the longitudinal direction (fore-and-aft direction as shown in Figure 1-Figure 3) of vehicle, and the two ends of every root rear cross 850 are fixed on two floor side members 820 respectively.Preferably, the two ends of every root rear cross 850 are welded with two floor side members 820 respectively.
The lower end of C post 167 to be configured with before C post lower end connecting portion 902 after connecting portion 901 and C post lower end.Before C post lower end, the floor side member 820 of connecting portion 901 and corresponding side and the second rear cross 852 are fixed, and behind C post lower end, the floor side member 820 of connecting portion 902 and corresponding side and the 3rd rear cross 853 are fixed.The two ends of top cap rear cross beam 860 are fixed respectively with the upper end of the C post 167 on left side C post 167 and right side respectively.
Be understandable that, the first rear cross 851, second rear cross 852 be spaced apart from each other from front to back and the 3rd rear cross 853 are configured to three closed-loops jointly with the floor side member 820 of the left and right sides.Such as, in example as shown in Figure 3, the first rear cross 851, second rear cross 852 and two floor side members 820 be clipped between the first rear cross 851 and the second rear cross 852 are configured to the first closed loop 811; Second rear cross 852, the 3rd rear cross 853 and two floor side members 820 be clipped between the second rear cross 852 and the 3rd rear cross 853 are configured to the second closed loop 812; 3rd rear cross 853, back buffer beam 840 and two floor side members 820 be clipped between the 3rd rear cross 853 and back buffer beam 840 are configured to the 3rd closed loop 813.
In an example of the present invention, as shown in Figure 1 and Figure 2, the second rear cross 852 can comprise: the second rear cross upper plate 852a and the second rear cross lower plate 852b.Particularly, the second rear cross upper plate 852a respectively with floor 129, floor side member 820 and C post lower end before connecting portion 901 be welded and fixed, the second rear cross lower plate 852b is welded and fixed with floor 820, floor side member 820 respectively.For improving the intensity of the second rear cross 852 further, can by alternatively distributed two-layer weldering and three layers of weldering welding between the second rear cross upper plate 852a, the second rear cross lower plate 852b and floor 129.In addition, vehicle body 1 also comprises side-wall outer-plate (scheming not shown) and wheel cover (scheming not shown), and wheel cover is welded on side-wall outer-plate, and C post 167 welds with side-wall outer-plate and wheel cover.
From the characteristic of power, power has transitivity, and the impact that therefore vehicle produces when colliding can be transmitted to front along the 3rd adjacent closed loop 813, second closed loop 812, first closed loop 811 successively by rear.Because in collision process, vehicle body 1 deformation can occur, the energy produced in collision process is absorbed by vehicle body, and the deformation quantity that vehicle body 1 occurs is reduced to front gradually by rear.As shown in Figure 3, vehicle is in collision process, and the impact that the 3rd closed loop 813 being positioned at rearmost end is born is maximum, is positioned at the impact that the first closed loop 811 foremost bears minimum.Be understandable that, the region that the 3rd closed loop 813 limits can be called crumple energy-absorbing district, and namely the deformation quantity of the 3rd closed loop 813 energy that is maximum, that absorb is maximum; The region that second closed loop 812 limits can be called deformable zone, and namely the second closed loop 812 slight deformation can occur, and is fallen by remaining energy absorbing.The power being passed to the first closed loop 811 is fainter, the region that first closed loop 811 limits is safer relative to deformable zone, can be arranged on by the parts of the not crashworthiness such as fuel tank (scheming not shown) in region that the first closed loop 811 limits, the first closed loop 811 also can be described as " fuel tank area " thus for this reason.
It can thus be appreciated that, first closed loop 811, second closed loop 812 of arranging along the longitudinal direction and the 3rd closed loop 813, effectively can absorb the energy that vehicle produces in knockout process, ensure that " fuel tank area " the i.e. integraty of the first closed loop 811 in complete automobile collision, after making car load can meet high-speed crash GB20072-2006 and FMVSS310 manned vehicle, touch fuel oil system security requirement.
Will also be appreciated that top cap rear cross beam 860, left side C post 167, right side C post 167, second rear cross 852 and the 3rd rear cross 853 are configured to two closed-loops jointly.Such as, in the example shown in fig. 6, before the C post lower end of top cap rear cross beam 860, second rear cross 852, left side C post 167 and left side C post 167 connecting portion 901 and right side C post 167 and right side C post 167 C post lower end before connecting portion be jointly configured to the 4th closed loop 814; Behind the C post lower end of top cap rear cross beam 860, the 3rd rear cross 853, left side C post 167 and left side post 167 connecting portion 902 and right side C post 167 and right side C post 167 C post lower end after connecting portion be jointly configured to the 5th closed loop 815.
" two close cycles " structure that 4th closed loop 814 and the 5th closed loop 815 are formed is when testing the torsional stiffness of vehicle body 1, compressive strength and NVH performance, two power transmission passages can be provided, significantly can strengthen torsional stiffness and the roof compressive strength of vehicle body 1, the NVH performance of car load can also be improved, reduce vibration, reduce noise, improve the traveling comfort taken.
According to the vehicle body 1 for vehicle of the embodiment of the present invention, utilize two floor side members 820, first rear cross 851, second rear cross 852 and the 3rd rear cross 853 that vehicle body 1 afterbody is configured to the first closed loop 811, second closed loop 812 and the 3rd closed loop 813 along the longitudinal direction, effectively can absorb the energy that vehicle produces in knockout process, ensure that " fuel tank area " the i.e. integraty of the first closed loop 811 in complete automobile collision, after making car load can meet high-speed crash GB20072-2006 and FMVSS310 manned vehicle, touch fuel oil system security requirement.Utilize two C posts, top cap rear cross beam 860, second rear cross 852 and the 3rd rear cross 853 that vehicle body 1 tail portion configurations is become the 4th closed loop 814 and the 5th closed loop 815 simultaneously, two power transmission passages can be provided for vehicle body 1 reverses, significantly can strengthen torsional stiffness and the roof compressive strength of vehicle body 1 thus, the NVH performance of car load can also be improved, reduce vibration, reduce noise, improve the traveling comfort taken.
As shown in Figure 5, Figure 6, further, C post 167 comprises: connecting panel after connecting panel and C post lower plate before C post upper plate 903, C post lower plate 904, C post lower plate.Particularly, the upper end of C post upper plate 903 is connected with top cap rear cross beam 860.The upper end of C post lower plate 904 is connected with the lower end of C post upper plate 903.Before C post lower plate, the upper end of connecting panel is connected with the bottom of C post lower plate 904, and before C post lower plate, connecting panel is also connected with the second rear cross 852 with floor side member 820.After C post lower plate, the upper end of connecting panel is connected with the bottom of C post lower plate 904, and after C post lower plate, connecting panel is also connected with the 3rd rear cross 853 with floor side member 820.Wherein, before before C post lower plate, connecting panel forms C post lower end, after connecting portion 901, C post lower plate, connecting panel forms connecting portion 902 behind C post lower end.Preferably, C post 167 can be formed in one part.
As shown in Figure 1, Figure 2 and shown in Fig. 5, C post lower plate 904 comprises: C post lower plate body 904a, C post lower plate forelimb plate 904b and C post lower plate hind leg plate 904c.Particularly, the upper end of C post lower plate forelimb plate 904b is connected with the lower end of C post lower plate body 904a respectively with the upper end of C post lower plate hind leg plate 904c, C post lower plate forelimb plate 904b relative C post lower plate body 904a forward, to downward-extension, C post lower plate hind leg plate relative C post lower plate body 904a backward, to downward-extension.Here, can determine as the case may be for the angle between C post lower plate forelimb plate 904b and C post lower plate hind leg plate 904c, such as, the span of the angle between C post lower plate forelimb plate 904b and C post lower plate hind leg plate 904c is 20 °-160 °.
In example as shown in Figure 5, C post lower plate 904 comprises further: limb plate connecting panel 904d.Limb plate connecting panel 904d is located between C post lower plate forelimb plate 904b and C post lower plate hind leg plate 904c.Thus, the intensity of C post lower plate 904 can be improved, thus the ability that C post 167 bears load can be improved, and then the torsional stiffness of car load, compressive strength and NVH performance can be improved further.Preferably, C post lower plate 904 can be formed in one part.
As shown in Fig. 1 and Fig. 1-a, be connected with floor side member 820 and the second rear cross 852 for convenience of connecting panel before C post lower plate, before C post lower plate, connecting panel can be divided into vertical section 901a and horizontal segment 901b, before C post lower plate connecting panel vertical section 901a to be overlapped at least partially on C post lower plate forelimb plate 904b and by being welded and fixed, before C post lower plate connecting panel horizontal segment 901b to be overlapped at least partially on floor side member 820 and the second rear cross 852 and by being welded and fixed.In addition, particular determination is not done for the angle between vertical section 901a and horizontal segment 901b, as long as connecting panel is connected with floor side member 820 and the second rear cross 852 before it is convenient to C post lower plate, such as, between vertical section 901a and horizontal segment 901b, the span of angle is 60 °-120 °.For improving the Joint strenght between vertical section 901a and horizontal segment 901b further, between vertical section 901a and horizontal segment 901b, there is arc transition.
As shown in Figure 1, be connected with floor side member 820 and the 3rd rear cross 853 for convenience of connecting panel after C post lower plate, after C post lower plate, connecting panel can be divided into vertical section 902a and horizontal segment 902b, after C post lower plate connecting panel vertical section 902a to be overlapped at least partially on C post lower plate hind leg plate 904c and by being welded and fixed, after C post lower plate connecting panel horizontal segment 902b to be overlapped at least partially on floor side member 820 and the 3rd rear cross 852 and by being welded and fixed.
It should be noted that, after C post lower plate, connecting panel can be identical with the structure of connecting panel before C post lower plate, also can not be identical.After C post lower plate, before connecting panel and C post lower plate, the structure of connecting panel needs to determine as the case may be.Such as, when testing the torsional stiffness of vehicle body 1, compressive strength and NVH performance, can according to the mechanical characteristic of C post 167, the structure of connecting panel before connecting panel and C post lower plate after appropriate design C post lower plate, to strengthen torsional stiffness and the roof compressive strength of vehicle body 1.
For improving the overall performance of vehicle body 1 further, as shown in Figure 4, floor side member 820 can be divided into the front section 821 be connected successively, stage casing part 822 and hindfoot portion 823, first rear cross 851 is connected to the front end place of the front section 821 of two floor side members 820, each in second rear cross 852 and the 3rd rear cross 853 is all connected between the stage casing part 822 of two floor side members 820, back buffer beam 840 is fixed on the rear end of the hindfoot portion 823 of two floor side members 820, stage casing part 822 is fixed by laser beam welding with front section 821 and hindfoot portion 823 respectively.
The design form of floor side member 820 segmentation can control the cross section of every section of longeron, material, thickness effectively, thus effectively control the deformation pattern of floor side member 820, the hindfoot portion 823 of floor side member 820 opens horizontal and/or longitudinal reinforced rib 824, is conducive at the crumple distortion of vehicle body 1 afterbody floor side member 820 in high-speed crash process and energy-absorbing.Certainly, the mode improving the crumple distortion of floor side member 820 and the performance of energy-absorbing is not limited to this, such as, can also open crumple groove 825 in the stage casing part 822 of floor side member 820.In addition, by floor side member 820 structure of laser welding, decrease the complexity of welding process, also reduce the weight of car load simultaneously.
As shown in Figure 1 and Figure 2, be provided with rear energy-absorption box 830 between the rear end of back buffer beam 840 and each floor side member 820, rear energy-absorption box 830 is removably connected with floor side member 820 with back buffer beam 840 and rear energy-absorption box 830.Such as, in an optional example of the present invention, rear energy-absorption box 830 is bolted with back buffer beam 840, and rear energy-absorption box 830 is bolted with floor side member 820.Thus, when vehicle tail needs to change parts because low speed collision (being such as the collision of below 15m/h) produces deformation, maintenance time and service expenditure can be saved, thus improve insurance rating.For improving the connection reliability of rear energy-absorption box 830 further, rear energy-absorption box 830 is removably connected with floor 129.
In example as shown in Figure 5, the below of the stage casing part 822 of floor side member 820 is provided with rear shock absorber 870, in vehicle travel process, bumper 870 is stressed as shown in arrow c in Fig. 5, thus, effectively can reduce vibration, reduce noise, improve car load stationarity under steam, improve the traveling comfort that customer takes.
As shown in Figs. 7-8, Collision test is carried out with the vehicle body 1 for vehicle of concrete numerical value to the embodiment of the present invention below.Be worth understanding, following numerical value is that example illustrates, instead of to concrete restriction of the present invention.
Be in 50km/h afterbody 100% Collision test in operating mode, vehicle body 1 is stressed as shown in arrow a in Fig. 7.Obviously, the first closed loop 811 region keeps complete, and slight deformation occurs the second closed loop 812, and the 3rd closed loop 813, relative to the second closed loop 812, comparatively large deformation occurs.
Be in 80km/h afterbody 70% Collision test in operating mode, vehicle body 1 is stressed as shown in arrow b in Fig. 8.Because collision velocity is higher, the deformation quantity of the 3rd closed loop 813 is maximum, and the deformation quantity of the second closed loop 812 takes second place, and the first closed loop 811 keeps relatively complete, and does not have hard object to invade.
It can thus be appreciated that, utilize two floor side members 820, first rear cross 851, second rear cross 852 and the 3rd rear cross 853 that vehicle body 1 afterbody is configured to the first closed loop 811, second closed loop 812 and the 3rd closed loop 813 along the longitudinal direction, effectively can absorb the energy that vehicle produces in knockout process, ensure that " fuel tank area " the i.e. integraty of the first closed loop 811 in complete automobile collision, after making car load can meet high-speed crash GB20072-2006 and FMVSS310 manned vehicle, touch fuel oil system security requirement.
According to the vehicle of the embodiment of the present invention, comprise the above-mentioned vehicle body for vehicle.
According to the vehicle of the embodiment of the present invention, utilize two floor side members 820, first rear cross 851, second rear cross 852 and the 3rd rear cross 853 that vehicle body 1 afterbody is configured to the first closed loop 811, second closed loop 812 and the 3rd closed loop 813 along the longitudinal direction, effectively can absorb the energy that vehicle produces in knockout process, ensure that " fuel tank area " the i.e. integraty of the first closed loop 811 in complete automobile collision, after making car load can meet high-speed crash GB20072-2006 and FMVSS310 manned vehicle, touch fuel oil system security requirement.Utilize two C posts, top cap rear cross beam 860, second rear cross 852 and the 3rd rear cross 853 that vehicle body 1 tail portion configurations is become the 4th closed loop 814 and the 5th closed loop 815 simultaneously, two power transmission passages can be provided for vehicle body 1 reverses, significantly can strengthen torsional stiffness and the roof compressive strength of vehicle body 1 thus, the NVH performance of car load can also be improved, reduce vibration, reduce noise, improve the traveling comfort taken.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. for a vehicle body for vehicle, it is characterized in that, comprising:
Floor;
Two floor side members, described two floor side members are spaced apart from each other along the transverse direction of described vehicle, and described two floor side members are fixed on described floor;
Back buffer beam, described back buffer beam is fixed on the rear end of described two floor side members;
First rear cross, the second rear cross and the 3rd rear cross, described first rear cross, described second rear cross and described 3rd rear cross are spaced apart from each other from front to back along the longitudinal direction of described vehicle, and the two ends of every root rear cross are fixed on described two floor side members respectively;
C post, the lower end of described C post to be configured with before C post lower end connecting portion after connecting portion and C post lower end, before described C post lower end, the floor side member of connecting portion and corresponding side and described second rear cross are fixed, and behind described C post lower end, the floor side member of connecting portion and corresponding side and described 3rd rear cross are fixed; And
Top cap rear cross beam, the two ends of described top cap rear cross beam are fixed with the upper end of the described C post on left side and right side respectively.
2. the vehicle body for vehicle according to claim 1, is characterized in that, described C post comprises:
C post upper plate, the upper end of described C post upper plate is connected with described top cap rear cross beam;
C post lower plate, the upper end of described C post lower plate is connected with the lower end of described C post upper plate;
Connecting panel before C post lower plate, before described C post lower plate, the upper end of connecting panel is connected with the bottom of described C post lower plate, and before described C post lower plate, connecting panel is also connected with described second rear cross with described floor side member; And
Connecting panel after C post lower plate, after described C post lower plate, the upper end of connecting panel is connected with the bottom of described C post lower plate, and after described C post lower plate, connecting panel is also connected with described 3rd rear cross with described floor side member; Wherein
Before described C post lower plate, connecting panel forms connecting portion before described C post lower end, and after described C post lower plate, connecting panel forms connecting portion behind described C post lower end.
3. the vehicle body for vehicle according to claim 2, is characterized in that, described C post lower plate comprises:
C post lower plate body; And
C post lower plate forelimb plate and C post lower plate hind leg plate, the upper end of described C post lower plate forelimb plate is connected with the lower end of described C post lower plate body respectively with the upper end of described C post lower plate hind leg plate, described C post lower plate forelimb plate relatively described C post lower plate body forward, to downward-extension, described C post lower plate hind leg plate relatively described C post lower plate body backward, to downward-extension.
4. the vehicle body for vehicle according to claim 3, is characterized in that, described C post lower plate comprises further: limb plate connecting panel, and described limb plate connecting panel is located between described C post lower plate forelimb plate and described C post lower plate hind leg plate.
5. the vehicle body for vehicle according to claim 3, it is characterized in that, before described C post lower plate, connecting panel is divided into vertical section and horizontal segment, being overlapped at least partially on described C post lower plate forelimb plate and being welded and fixed of vertical section of connecting panel before described C post lower plate, being overlapped on described floor side member and described second rear cross at least partially and being welded and fixed of horizontal segment of connecting panel before described C post lower plate.
6. the vehicle body for vehicle according to claim 5, it is characterized in that, after described C post lower plate, connecting panel is divided into vertical section and horizontal segment, being overlapped at least partially on described C post lower plate hind leg plate and being welded and fixed of vertical section of connecting panel after described C post lower plate, being overlapped on described floor side member and described 3rd rear cross at least partially and being welded and fixed of horizontal segment of connecting panel after described C post lower plate.
7. the vehicle body for vehicle according to claim 1, it is characterized in that, described floor side member is divided into the front section, stage casing part and the hindfoot portion that are connected successively, described first rear cross is connected to the front end place of the front section of two floor side members, between the center section part that each in described second rear cross and described 3rd rear cross is all connected to two floor side members divides, described back buffer beam is fixed on the rear end of the hindfoot portion of two floor side members, and described stage casing part is fixed by laser beam welding with described front section and described hindfoot portion respectively.
8. the vehicle body for vehicle according to claim 1, it is characterized in that, be provided with rear energy-absorption box between the rear end of described back buffer beam and each described floor side member, described rear energy-absorption box is removably connected with described floor side member with described back buffer beam and described rear energy-absorption box.
9. the vehicle body for vehicle according to claim 1, is characterized in that, described second rear cross comprises:
Second rear cross upper plate and the second rear cross lower plate, described second rear cross upper plate respectively with described floor, described floor side member and described C post lower end before connecting portion be welded and fixed, described second rear cross lower plate is welded and fixed with described floor, described floor side member respectively.
10. a vehicle, is characterized in that, comprises the vehicle body for vehicle according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373139.0A CN105313980A (en) | 2014-07-31 | 2014-07-31 | Vehicle and bodywork for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373139.0A CN105313980A (en) | 2014-07-31 | 2014-07-31 | Vehicle and bodywork for same |
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| Publication Number | Publication Date |
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| CN105313980A true CN105313980A (en) | 2016-02-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410373139.0A Pending CN105313980A (en) | 2014-07-31 | 2014-07-31 | Vehicle and bodywork for same |
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| CN (1) | CN105313980A (en) |
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| CN107901990A (en) * | 2017-10-20 | 2018-04-13 | 宁波吉利汽车研究开发有限公司 | The rear floor frame beam of performance is touched after a kind of lifting |
| CN108248693A (en) * | 2016-12-28 | 2018-07-06 | 长城汽车股份有限公司 | Body structure and vehicle |
| CN110475705A (en) * | 2017-03-07 | 2019-11-19 | 雷诺股份公司 | Motor vehicle body structure |
| CN111376993A (en) * | 2018-12-27 | 2020-07-07 | 长城汽车股份有限公司 | Rear floor for vehicle and vehicle with same |
| WO2023241354A1 (en) * | 2022-06-16 | 2023-12-21 | 浙江吉利控股集团有限公司 | Rear vehicle floor, and vehicle |
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| WO2023241354A1 (en) * | 2022-06-16 | 2023-12-21 | 浙江吉利控股集团有限公司 | Rear vehicle floor, and vehicle |
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