CN101544218B - Collision energy absorbing box of vehicle and front structure of vehicle body - Google Patents
Collision energy absorbing box of vehicle and front structure of vehicle body Download PDFInfo
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- CN101544218B CN101544218B CN2009101279711A CN200910127971A CN101544218B CN 101544218 B CN101544218 B CN 101544218B CN 2009101279711 A CN2009101279711 A CN 2009101279711A CN 200910127971 A CN200910127971 A CN 200910127971A CN 101544218 B CN101544218 B CN 101544218B
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Abstract
The present invention provides a collision energy absorbing box of a vehicle. The collision energy absorbing box of the vehicle is provided with a structure that the box body is crushed before the front collision of the vehicle thereby absorbing the impact energy. The box body is configured between a front beam and a bumper beam at the front side of the vehicle. The box body forms a cylinder shape which is provided with an axial center along the front-and-after direction of the vehicle. A reinforcing beam which connects one pair of opposite wall parts of box body is installed in the hollow part of the box body.
Description
Technical field
The present invention relates to a kind of collision energy absorbing box and vehicle body front structure of vehicle; This collision energy absorbing box has the box body between the bumper beam that is configured in all side beam and its vehicle front side; Above-mentioned box body is by conquassation when vehicle generation front shock, thereby absorbs impact energy.
Background technology
Require automobile when slight impact takes place, to reduce cost of repair in recent years.This just need be when slight impact takes place all side beam indeformable; High price such as radiator and condenser parts are not damaged., collision energy absorbing box is configured between the bumper beam of all side beam and its vehicle front side, the conquassation collision energy absorbing box absorbs impact energy when automobile generation front shock for this reason.In addition, through regulating the conquassation residual volume (length of the collision energy absorbing box of the vehicle fore-and-aft direction after the collision) of collision energy absorbing box, high price parts such as the radiator that do not have parts and Vehicular body front when slight impact takes place and condenser are contacted.
Existing collision energy absorbing box just merely forms tubular as patent documentation 1 and patent documentation 2 disclose.
Patent documentation 1: TOHKEMY 2006-123887 communique
Patent documentation 2: TOHKEMY 2005-1462 communique
In above-mentioned existing design; Because collision energy absorbing box only merely forms tubular; Thereby when the performance setting with the collision energy absorbing box of amount of energy, maximum drag, conquassation residual volume etc. is target capabilities, have to set according to shape, thickness of slab and the material of the box body of collision energy absorbing box.Be collided the to a great extent restriction of above-mentioned performance of energy-absorbing box of its result, the shape of box body is difficult to make box body to form required shape.
Summary of the invention
In view of this; The object of the present invention is to provide a kind of collision energy absorbing box and vehicle body front structure of vehicle; The collision energy absorbing box of this vehicle is to be the structure of target capabilities with the performance setting of amount of energy, maximum drag, conquassation residual volume etc., and can also make box body easily be set at required form.
The present invention provides a kind of collision energy absorbing box of vehicle, and box body is by the conquassation impact-absorbing construction when vehicle generation front shock thereby have, and this box body is configured between the bumper beam of all side beam and its vehicle front side,
Said box body forms the tubular that has along the axle center of vehicle fore-and-aft direction,
The strength beam that connects the pair of opposed wall respect to one another portion of said box body is arranged in the hollow bulb of said box body.
According to this structure; Because the strength beam of the pair of opposed wall respect to one another portion of connecting box body is arranged in the hollow bulb of box body; Therefore when the performance setting with the collision energy absorbing box of amount of energy, maximum drag, conquassation residual volume etc. is target capabilities, can set according to the shape and the size of strength beam.That is to say that the shape of box body needn't receive the bigger restriction of performance of the collision energy absorbing box of amount of energy, maximum drag, conquassation residual volume etc., can make box body easily be set at required form.
Also can be, longer from the longitudinal size of the longitudinal cross-section of the observed said box body of vehicle front side than the lateral dimension of said longitudinal cross-section,
Said opposed walls portion is the sidewall of the said box body that extends along the vehicle above-below direction on the longitudinal cross-section.
When vehicle generation slight impact, the sidewall that the above-below direction of the said vehicle in edge of easy enlargement deformation extends is reinforced beam and is connecting, and therefore can increase the intensity of collision energy absorbing box.In addition, can utilize thin cheap material as the box body material beyond the strength beam.Power to from relative vehicle fore-and-aft direction bevelled direction can make collision energy absorbing box become stronger structure, can fracture to the vehicle fore-and-aft direction because of the power from said direction of tilt by crash-avoidance energy-absorbing box.
Also can be, said strength beam forms along the vehicle fore-and-aft direction,
The right ends portion of said strength beam is bent, thereby is formed with the pair of right and left flange that extends along the vertical direction,
Utilize spot welding that said pair of right and left flange is welded in said pair of opposed wall portion.
Thereby the right ends portion bending through making strength beam forms the pair of right and left flange that extends along the vertical direction, can strengthen the intensity of strength beam.Can be easily with strength beam to tubular box body internal fixation.
Also can be; The front side plate welded joint is at the front end of the vehicle front side of said box body; Thereby seal said hollow bulb, the rear quarter panel welded joint is in the rear end of the rear view of vehicle side of said box body, thereby seals said hollow bulb; Said front side plate leaves the front end of the vehicle front side of said strength beam, and said rear quarter panel leaves the rear end of the rear view of vehicle side of said strength beam.
The part of box body does not strengthen through strength beam, can make the part of above-mentioned box body compare other box body part conquassation more easily, thereby can utilize strength beam more easily to regulate the deformation pattern of box body.If the length of strength beam is identical with the length of box body on the vehicle fore-and-aft direction, do not have between front side plate and the rear quarter panel at interval, in order to regulate the deformation pattern of box body, then must make strength beam make complicated shape.On the other hand, adopt said structure, not only strength beam is simple shape, and the deformation pattern that can regulate box body.
Also can be, be formed with the right angle orientation raised line that edge and the rectangular direction of vehicle fore-and-aft direction are extended at the forebody of the vehicle fore-and-aft direction of said box body,
The latter half of fore-and-aft direction raised line that is formed with the edge direction extension parallel at said box body with the vehicle fore-and-aft direction.
The right angle orientation raised line is to make box body easily at the raised line of vehicle fore-and-aft direction distortion, and the impact energy in the time of utilizing this right angle orientation raised line easily to absorb slight impact prevents the damage of all side beam.And can easily regulate the load at the distortion initial stage of box body.
The fore-and-aft direction raised line is the raised line that stops the distortion of vehicle fore-and-aft direction; Utilize this fore-and-aft direction raised line can easily regulate the conquassation residual volume of box body; With the radiator and the parts that high price parts such as condenser contact of Vehicular body front, prevent that them from sustaining damage in the time of slight impact being eliminated.
Also can be,, be formed with a plurality of said right angle orientation raised line of edge and the rectangular direction extension of vehicle fore-and-aft direction separatedly at the overhead standard width of a room in an old-style house of vehicle fore-and-aft direction at the forebody of the vehicle fore-and-aft direction of said box body,
The length setting of said right angle orientation that in said a plurality of right angle orientation raised lines, is positioned at the right angle orientation raised line of vehicle front side is the length of said right angle orientation of right angle orientation raised line greater than other.
When vehicle generation slight impact, the right angle orientation raised line that is positioned at vehicle front side is out of shape at first, make the right angle orientation raised line distortion at rear afterwards, can successfully make box body begin conquassation from front side.And, can reduce the peak value of the initial stage drag of collision energy absorbing box.
The front end of the vehicle front side of said strength beam is positioned at the rear view of vehicle side of the right angle orientation raised line of said vehicle front side, can avoid being positioned at the problem that the right angle orientation raised line of vehicle front side is difficult to be out of shape because of strength beam when the vehicle slight impact like this.And, can be successfully from front side with the box body conquassation, reduce the peak value of the initial stage drag of collision energy absorbing box.
On said strength beam, be formed with the right angle orientation raised line that the rectangular direction of edge and vehicle fore-and-aft direction is extended, can more easily utilize strength beam to regulate the deformation pattern of box body like this.
Also can be; Said box body comprises that the cross section is the lower side member that the upper side member of being inverted U-shaped up and down and cross section take the shape of the letter U; One side's of said upper side member sidewall, a side's of said lower side member sidewall, a side's of said strength beam flange is overlapped and implemented spot welding; And the opposing party's of said upper side member sidewall, the opposing party's of said lower side member sidewall, the opposing party's of said strength beam flange is overlapped and implemented spot welding; Like this, the making of collision energy absorbing box becomes easily, can prevent peeling off and ftractureing of each other overlapping of above-mentioned sidewall; Owing to have above-mentioned overlapping portion at the vehicle fore-and-aft direction, thereby can strengthen the intensity of collision energy absorbing box.
The present invention provides a kind of vehicle body front structure, has: all side beam; Be configured in the bumper beam of the front side of said all side beam; And the collision energy absorbing box of the said vehicle that between said all side beam and said bumper beam, disposes.Adopt this structure; Because the pair of opposed wall respect to one another portion bonded assembly strength beam of connecting box body is arranged in the hollow bulb of box body; Therefore when the performance setting with the collision energy absorbing box of amount of energy, maximum drag, conquassation residual volume etc. is target capabilities, can set according to shape, the size of strength beam.That is, the shape of box body can not receive the restriction of performance of the collision energy absorbing box of amount of energy, maximum drag, conquassation residual volume etc. to a great extent, makes box body easily be set at required form.
Also can be, said all side beam forms the tubular of axle center along the vehicle fore-and-aft direction,
To be set at from the longitudinal cross-section shape of the observed said box body of vehicle front side and size identical or basic identical with the longitudinal cross-section shape of said all side beam with size,
Observe from vehicle front side, each wall of said box body and each wall of said all side beam are overlapping.
Can utilize all side beam to accept, support the power that acts on collision energy absorbing box from bumper beam reliably, be difficult for producing the power of hand of rotation at collision energy absorbing box.Therefore, can easily, correctly bring into play the collision energy absorbing box performance of the amount of energy of collision energy absorbing box, maximum drag, conquassation residual volume etc.
As the means that make the power that is difficult for rotating direction on the collision energy absorbing box; Can consider to thicken the means that strengthen the rigidity of back plate with the wall thickness of the back plate (connecting panel) of the engaged at end of the rear view of vehicle side of box body, but these means can be brought the problem that weight increases, material cost rises.By contrast, above-mentioned formation of the present invention can not cause this problem.
Description of drawings
Fig. 1 is the block diagram of vehicle body front structure.
Fig. 2 (a) is the vertical profile front view (from the observed longitudinal section of vehicle front side) of the collision energy absorbing box on car body right side, and Fig. 2 (b) is the vertical profile front view (from the observed longitudinal section of vehicle front side) at the junction surface that engages with the heat sink side support of all side beam on car body right side.
Fig. 3 is the cross-sectional birds-eye view at the junction surface that engages with the heat sink side support of all side beam on car body right side.
Fig. 4 is the block diagram of the collision energy absorbing box on car body right side.
Fig. 5 is the exploded perspective view of the collision energy absorbing box on car body right side.
Fig. 6 is the block diagram from the collision energy absorbing box on the observed car body right side, the oblique back lower place in the overall width direction outside.
The specific embodiment
Below, with reference to accompanying drawing the preferred forms that is used for embodiment of the present invention is described.
Fig. 1 representes the vehicle body front structure as the automobile of vehicle.As shown in Figure 1; The axle center is arranged on Vehicular body front along the square barrel-contoured pair of right and left all side beam 1 of vehicle fore-and-aft direction with the state along the vehicle fore-and-aft direction; Make along the heat sink side support 2 of automobile above-below direction leading section and intersect, will be erected at along the radiator top frame 3 of overall width direction W on the upper end of heat sink side support 2 of pair of right and left with each all side beam 1.
(structure of all side beam 1)
The all side beam 1 on Fig. 2 (b) expression car body right side and the vertical profile front view (from the observed longitudinal sectional view of vehicle front side Fr) of the joint portion of heat sink side support 2, Fig. 3 representes the cross-sectional birds-eye view of above-mentioned joint portion.Shown in these figure; Utilize a metal sheet to form sidewall 11 (below be called " first madial wall 11 ") and the upper wall 12 of the inboard W1 of lower wall 10, overall width direction of all side beam 1 through punch process; And make first madial wall 11 constitute the vertical wall; Make lower wall 10 constitute horizontal wall, make upper wall 12 constitute more past overall width direction outside W2 offside in the top inclined wall of Z1.In addition; Utilize metal sheet punch process to form the sidewall 13 (below be called " first lateral wall 13 ") of the overall width direction outside W2 of all side beam 1; It is offside in the inclined wall of overall width direction outside W2 to make the lower part 13A of first lateral wall 13 constitute more past top Z1 side, makes first half 13B constitute the vertical wall.
The flange 12F that above the court of the end of W2 outside the overall width direction of above-mentioned upper wall 12 formation, extends is overlapping from the inboard W1 of overall width direction and first lateral wall 13; And make the sidewall 20 (below be called " second lateral wall 20 ") of the overall width direction outside W2 of heat sink side support 2 overlapping from overall width direction outside W2 and they, be one with three's welded joint.Equally; The flange 10F that below the court of the end of W2 outside the overall width direction of above-mentioned lower wall 10 formation, extends is overlapping from the inboard W1 of overall width direction and first lateral wall 13; And make above-mentioned second lateral wall 20 overlapping from overall width direction outside W2 and they, be one with three's welded joint.
(connected structure of heat sink side support 2 and all side beam 1)
Like Fig. 2 (b), shown in Figure 3; A metal sheet punch process is become L shaped; Form second lateral wall 20 of heat sink side support 2 and the antetheca 22 of vehicle front side Fr; And become the cross section to be open コ shape the metal sheet punch process towards the inboard W1 of overall width direction; Thereby form the sidewall 21 (below be called " second madial wall 21 ") of the inboard W1 of overall width direction, the flange 21F that makes second madial wall 21 is from rear view of vehicle side and antetheca 22, from overlapping the strengthening part 29 overlapping and welded joint of rear view of vehicle side and this antetheca 22.
Utilize second lateral wall 20 and second madial wall 21 to clamp all side beam 1 at overall width direction W, with second lateral wall, 20 welded joint on first lateral wall 13 of all side beam 1, with second madial wall, 21 welded joint on first madial wall 11 of all side beam 1.The antetheca 22 of heat sink side support 2 is relative from the end of the vehicle front side Fr of the end of the vehicle front side Fr of first lateral wall 13 of vehicle front side Fr and all side beam 1 and first madial wall 11.
(mounting structure of the thick stick crossbeam 4 of insuring)
As shown in Figure 1, be positioned at the vehicle front side Fr of all side beam 1 along the left and right end portions of the thick stick crossbeam 4 of insuring of overall width direction W.The thick stick crossbeam 4 of insuring has all along the thick stick header board 7 of insuring of overall width direction W, the thick stick crossbeam damper element 8 of insuring, the thick stick crossbeam of insuring
Strength beam(not shown).The thick stick crossbeam damper element 8 of insuring forms the cross section to be vehicle front side Fr is flat and the open V-arrangement of rear view of vehicle side, has pair of flanges up and down at both ends up and down.With this flange from the vehicle front side Fr and thick stick the header board 7 overlapping and welded joint of insuring.The leading section of the left part of this thick stick header board 7 of insuring and all side beam 1 in the left side first collision energy-absorbing box 30 by the left side is connected, the leading section of the right part of this thick stick header board 7 of insuring and all side beam 1 on the right side first collision energy-absorbing box 30 by the right side is connected.
(mounting structure of following bumper beam 5)
Be positioned at the vehicle front side Fr of the bottom of heat sink side support 2 along the left and right end portions of the following bumper beam 5 of overall width direction W.Following bumper beam 5 has all along the following bumper beam plate 6 of overall width direction W, following bumper beam damper element 9.Following bumper beam damper element 9 forms the cross section and is the open V-arrangement of rear view of vehicle side, the rearward end of following bumper beam damper element 9 and following bumper beam plate 6 welded joint.The bottom of the left part of this time bumper beam 5 and the heat sink side support 2 in left side second collision energy absorbing box 40 by the left side is connected, the bottom of the right part of bumper beam 5 down and the heat sink side support 2 on right side second collision energy absorbing box 40 by the right side is connected.
(structure of first collision energy-absorbing box 30)
Fig. 2 (a), Fig. 3～Fig. 6 represent the first collision energy-absorbing box 30 on car body right side.The first collision energy-absorbing box 30 in left side and the left and right directions center symmetry (be left-right symmetric) of the first collision energy-absorbing box 30 on right side with respect to car body.Shown in these figure; First collision energy-absorbing box 30 have the leading section that is configured in all side beam 1 and its vehicle front side Fr the thick stick crossbeam 4 of insuring about the end left and right end portions of thick stick header board 7 (particularly be insure) between box body 31, this box body 31 forms the square tubular of axle center O (with reference to Fig. 3) along the vehicle fore-and-aft direction.
The pair of opposed wall 50G of portion respect to one another, the 50U of box body 31 given bonded assembly strength beam 34 be arranged in the box body 31 in-to-in hollow bulb S, will close the connecting panel 35 (back plate) of the lengthwise of this hollow bulb S and the rear end welded joint of the rear view of vehicle side of box body 31 from the rear view of vehicle side seal.The radial outside of connecting panel 35 from the rearward end of box body 31 towards box body 31 stretches out, and circumference has the outstanding flange 35F towards vehicle front side Fr outside.As shown in Figure 3; The antetheca 22 of the heat sink side support 2 that connecting panel 35 one from the leading section of vehicle front side Fr and all side beam 1 is being engaged is overlapping; A plurality of hold-down bolts are inserted respectively lead to a plurality of bolt insertion hole 35H that form on the both ends up and down of fishplate bar 35, utilize this hold-down bolt that connecting panel 35 is fixed on the antetheca 22 from vehicle front side Fr removably.
As shown in Figure 6, thick stick header board 7 welded joint of insuring of the front end of the vehicle front side Fr of box body 31 and the thick stick crossbeam 4 of insuring.Through such structure, when automobile generation front shock, box body 31 and strength beam 34 conquassation absorb impact energy thus.From the longitudinal cross-section shape of the observed box body 31 of vehicle front side Fr is in the shape of vehicle above-below direction than long vertical length.That is, long than the lateral dimension of above-mentioned longitudinal cross-section from the longitudinal size of the longitudinal cross-section of the observed above-mentioned box body of vehicle front side.
Like Fig. 4, shown in Figure 5; Above-mentioned strength beam 34 is formed along the vehicle fore-and-aft direction; Make the right ends portion bending of strength beam 34, form the pair of right and left flange 34F that extends towards the top, pair of right and left flange 34F is connected with the inside face spot welding of the above-mentioned pair of opposed wall 50G of portion, 50U respectively.Particularly, above-mentioned strength beam 34 be configured to the 50G of opposed walls portion, 50U last form after the right angle orientation raised line stated intersect, and utilize spot-welded between the right angle orientation raised line of the 50G of opposed walls portion, 50U.On the strength beam body 34A between the two flange 34F of this strength beam 34, be formed with the long through-hole 34H that a plurality of right angle orientation raised line 34B that the rectangular direction of court and vehicle fore-and-aft direction extends and lightweight are used.A plurality of right angle orientation raised line 34B arrange with certain spacing on the vehicle fore-and-aft direction, and long through-hole 34H is between adjacent right angle orientation raised line 34B.Above-mentioned pair of right and left flange 34F also can extend towards the below, perhaps about a side flange 34F extend towards the top, the opposing party's flange 34F extends towards the below.
One side's of the upper end of one side's of the bottom of one side's of upper side member 32 sidewall 32U (the sidewall 32U of the inboard W1 of overall width direction), lower side member 33 sidewall 33U (the sidewall 33U of the inboard W1 of overall width direction), strength beam 34 flange 34F is overlapping and this three implemented spot welding with the form that is arranged in order to overall width direction outside W2 from the inboard W1 of overall width direction, and the form that the opposing party's of the upper end of the opposing party's of the bottom of the opposing party's of upper side member 32 sidewall 32G (the sidewall 32G of overall width direction outside W2), lower side member 33 sidewall 33G (the sidewall 33G of overall width direction outside W2), strength beam 34 flange 34F is arranged in order to overall width direction inboard W1 with W2 outside the overall width direction is overlapping and this three is implemented spot welding.
A side the 50U of opposed walls portion comprises the sidewall 33U of the inboard W1 of overall width direction of sidewall 32U and lower side member 33 of the inboard W1 of overall width direction of upper side member 32 among the above-mentioned pair of opposed wall 50G of portion, the 50U, and the opposing party's the 50G of opposed walls portion comprises the sidewall 33G of W2 outside the overall width direction of sidewall 32G and lower side member 33 of overall width direction outside W2 of upper side member 32.The longitudinal cross-section of each sidewall 32U, 33U, 32G, 33G is along the vehicle above-below direction extends.
Shown in Fig. 2 (a), Fig. 2 (b), will be set at longitudinal cross-section shape and size identical (also can be roughly the same) with all side beam 1 from the longitudinal cross-section shape of the observed box body 31 of vehicle front side Fr and size.That is to say; Sidewall 33U, the 32U of the inboard W1 of overall width direction of lower side member 33 and upper side member 32 are constituted the vertical wall respectively; The lower wall 33K of lower side member 33 is constituted horizontal wall; With the upper wall 32J of upper side member 32 constitute more past overall width direction outside W2 offside in the top inclined wall of Z1; It is offside in the inclined wall of overall width direction outside W2 that the sidewall 33G of the overall width direction of lower side member 33 outside W2 is constituted past top Z1 side, and the sidewall 32G of W2 constitutes the vertical wall outside the overall width direction of upper side member 32.The upper end of the sidewall 33G that engages with upper side member 32 constitutes the vertical wall.
Observe from vehicle front side Fr, each wall of each wall of box body 31 and all side beam 1 is configured to cooresponding wall overlaps each other between them.Thus, can utilize all side beam 1 to accept, support the power that acts on first collision energy-absorbing box 30 from the thick stick crossbeam 4 of insuring reliably.
Like Fig. 3, shown in Figure 4; Make the front end 34a of the vehicle front side Fr of strength beam 34 on the vehicle fore-and-aft direction, leave the above-mentioned thick stick header board 7 (being equivalent to front side plate) of insuring, make the rear end 34b of the rear view of vehicle side of strength beam 34 on the vehicle fore-and-aft direction, leave said connecting panel 35 (being equivalent to rear quarter panel).The insure front end welded joint of thick stick header board 7 and the vehicle front side Fr of box body 31; Thereby seal above-mentioned hollow bulb S (with reference to Fig. 1, Fig. 6) at the vehicle fore-and-aft direction; As stated; The rear end welded joint of the rear view of vehicle side of connecting panel 35 and box body 31, the above-mentioned hollow bulb S of sealing on the vehicle fore-and-aft direction.
Fig. 3～shown in Figure 6; On two side 33U, 33G and the lower wall 33K of the two side of above-mentioned upper side member 32 32U, 32G and upper wall 32J, lower side member 33; On the vehicle fore-and-aft direction, be formed with a plurality of right angle orientation raised line 32B, the 33B that the rectangular direction of edge and vehicle fore-and-aft direction is extended with certain spacing, each right angle orientation raised line 32B of each wall, 33B are configured on the identical position at the vehicle fore-and-aft direction.In addition; On each wall, the length setting of above-mentioned right angle orientation that is positioned at right angle orientation raised line 32B, the 33B of vehicle front side Fr among a plurality of right angle orientation raised line 32B, the 33B is other the length of above-mentioned right angle orientation of right angle orientation raised line 32B, 33B greater than each wall.The front end 34a of the vehicle front side Fr of above-mentioned strength beam 34 is positioned at the rear view of vehicle side of right angle orientation raised line 32B, 33B of vehicle front side Fr (with reference to Fig. 3, Fig. 4).
On above-below direction, link to each other with the last right angle orientation raised line 33B that forms of sidewall 33U, the 33G of lower side member 33 at the last right angle orientation raised line 32B that forms of sidewall 32U, the 32G of upper side member 32; In the sidewall 33U of sidewall 32U, 32G and the lower side member 33 of upper side member 32, the overlapping portion of 33G, the right angle orientation raised line 32B of two side 32U, 32G, 33B are overlapping at overall width direction W each other.It is separated at the circumferential overhead standard width of a room in an old-style house of box body 31 that the right angle orientation raised line 32B of the sidewall 32U of upper side member 32, the last formation of 32G and the upper wall 32J of upper side member 32 go up the right angle orientation raised line 32B that forms, and it is separated at the circumferential overhead standard width of a room in an old-style house of box body 31 that the right angle orientation raised line 33B of the sidewall 33U of lower side member 33, the last formation of 33G and the lower wall 33K of lower side member 33 go up the right angle orientation raised line 33B that forms.
On the sidewall 33G and lower wall 33K of W2 outside the overall width direction of the sidewall 32G of the overall width direction of upper side member 32 outside W2 and upper wall 32J, lower side member 33; Each right angle orientation raised line 32B, 33B decentralized configuration equably between the end of end to the rear view of vehicle side of the vehicle front side Fr of above-mentioned each wall; But latter half of (rear view of vehicle side latter half of) at the sidewall 33U of the inboard W1 of overall width direction of the sidewall 32U of the inboard W1 of the overall width direction of upper side member 32 latter half of (rear view of vehicle side latter half of) and lower side member 33 do not form right angle orientation raised line 32B, 33B, forms respectively along fore-and-aft direction raised line 32A, the 33A of the extension of vehicle fore-and-aft direction to replace right angle orientation raised line 32B, 33B.
The above-mentioned sidewall 32U of upper side member 32 goes up the upper end that the fore-and-aft direction raised line 32A that forms is positioned at the above-mentioned sidewall 32U of upper side member 32; And be positioned at the rear view of vehicle side of upper end of the right angle orientation raised line 32B of rear view of vehicle side; The fore-and-aft direction raised line 33A that the above-mentioned sidewall 33U of lower side member 33 go up to form is positioned at the bottom of the above-mentioned sidewall 33U of lower side member 33, and is positioned at the rear view of vehicle side of bottom of the right angle orientation raised line 33B of rear view of vehicle side.
Like Fig. 3～shown in Figure 6, above-mentioned right angle orientation raised line 32B, 33B and fore-and-aft direction raised line 32A, 33A form the cross section through punch process and are towards outstanding circular-arc of the radial outside of box body 31.The right angle orientation raised line 34B of strength beam 34 forms the cross section through punch process and is give prominence to towards the top circular-arc.
(other embodiments)
(1) also can in the hollow bulb S of box body 31, be provided with above-mentioned strength beam 34 a plurality of.
(2) also can the pair of opposed wall 50G of portion respect to one another, the 50U of above-mentioned box body 31 be constituted with the upper wall 32J of upper side member 32 and the lower wall 33K of lower side member 33, above-mentioned strength beam 34 is arranged to along the vertical direction.
(3) also can the structure of the 2nd collision energy absorbing box 40 be made identical with the structure of the 1st collision energy absorbing box 30.
Claims (6)
1. the collision energy absorbing box of a vehicle, box body is by the conquassation impact-absorbing construction when vehicle generation front shock thereby have, and this box body is configured between the bumper beam of all side beam and its vehicle front side,
Said box body forms the tubular that has along the axle center of vehicle fore-and-aft direction,
The strength beam that connects the pair of opposed wall respect to one another portion of said box body is arranged in the hollow bulb of said box body,
It is longer from the longitudinal size of the longitudinal cross-section of the observed said box body of vehicle front side than the lateral dimension of said longitudinal cross-section,
Said opposed walls portion is the sidewall of the said box body that extends along the vehicle above-below direction on the longitudinal cross-section,
Said strength beam forms along the vehicle fore-and-aft direction,
The right ends portion of said strength beam is bent, thereby is formed with the pair of right and left flange that extends along the vertical direction,
Utilize spot welding that said pair of right and left flange is welded in said pair of opposed wall portion respectively,
The front side plate welded joint is at the front end of the vehicle front side of said box body; Thereby seal said hollow bulb; The rear quarter panel welded joint is in the rear end of the rear view of vehicle side of said box body, thereby seals said hollow bulb, and said front side plate leaves the front end of the vehicle front side of said strength beam; Said rear quarter panel leaves the rear end of the rear view of vehicle side of said strength beam
At the forebody of the vehicle fore-and-aft direction of said box body, be formed with a plurality of said right angle orientation raised line of edge and the rectangular direction extension of vehicle fore-and-aft direction at the overhead standard width of a room in an old-style house of vehicle fore-and-aft direction separatedly,
The front-end configuration of the vehicle front side of said strength beam is in the said rear view of vehicle side that is positioned at the right angle orientation raised line of vehicle front side,
Said box body comprises that the cross section is the lower side member that the upper side member of being inverted U-shaped up and down and cross section take the shape of the letter U,
One side's of said upper side member sidewall, a side's of said lower side member sidewall, a side's of said strength beam flange overlaps each other and is implemented spot welding; And the opposing party's of said upper side member sidewall, the opposing party's of said lower side member sidewall, the opposing party's of said strength beam flange overlaps each other and implemented spot welding
On the said two side of the said two side of said upper side member, said lower side member, be formed with the right angle orientation raised line that the rectangular direction of edge and vehicle fore-and-aft direction is extended respectively,
Each right angle orientation raised line of each wall is configured on the identical position at the vehicle fore-and-aft direction,
The right angle orientation raised line that on the said two side of the right angle orientation raised line that forms on the said two side of said upper side member and said lower side member, forms links to each other on above-below direction,
In the overlapping portion of the said two side of the said two side of said upper side member and said lower side member, the right angle orientation raised line of the right angle orientation raised line of the said two side of said upper side member and the said two side of said lower side member is overlapping in the overall width direction each other.
2. the collision energy absorbing box of vehicle as claimed in claim 1 is characterized in that,
Be formed with the right angle orientation raised line that edge and the rectangular direction of vehicle fore-and-aft direction are extended at the forebody of the vehicle fore-and-aft direction of said box body,
The latter half of fore-and-aft direction raised line that is formed with the edge direction extension parallel at said box body with the vehicle fore-and-aft direction.
3. the collision energy absorbing box of vehicle as claimed in claim 1 is characterized in that,
The length setting of said right angle orientation that in said a plurality of right angle orientation raised lines, is positioned at the right angle orientation raised line of vehicle front side is the length of said right angle orientation of right angle orientation raised line greater than other.
4. the collision energy absorbing box of vehicle as claimed in claim 1 is characterized in that,
On said strength beam, be formed with the right angle orientation raised line that the rectangular direction of edge and vehicle fore-and-aft direction is extended.
5. vehicle body front structure is characterized in that having:
All side beam;
Be configured in the bumper beam of the front side of said all side beam; And
The collision energy absorbing box of the described vehicle of claim 1 that between said all side beam and said bumper beam, disposes.
6. vehicle body front structure as claimed in claim 5 is characterized in that,
Said all side beam forms the tubular that has along the axle center of vehicle fore-and-aft direction,
To be set at from the longitudinal cross-section shape of the observed said box body of vehicle front side and size identical or basic identical with the longitudinal cross-section shape of said all side beam with size,
Observe from vehicle front side, each wall of said box body and each wall of said all side beam are overlapping.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008081729 | 2008-03-26 | ||
| JP2008-081729 | 2008-03-26 | ||
| JP2008081729A JP5168477B2 (en) | 2008-03-26 | 2008-03-26 | Vehicle crash box and body front structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101544218A CN101544218A (en) | 2009-09-30 |
| CN101544218B true CN101544218B (en) | 2012-05-30 |
Family
ID=41191669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101279711A Expired - Fee Related CN101544218B (en) | 2008-03-26 | 2009-03-26 | Collision energy absorbing box of vehicle and front structure of vehicle body |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5168477B2 (en) |
| CN (1) | CN101544218B (en) |
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| CN110386192A (en) * | 2018-04-18 | 2019-10-29 | 比亚迪股份有限公司 | Vehicle and its front end crash endergonic structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5168477B2 (en) | 2013-03-21 |
| JP2009234377A (en) | 2009-10-15 |
| CN101544218A (en) | 2009-09-30 |
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