CN103407494B - For the longeron of vehicle frame - Google Patents
For the longeron of vehicle frame Download PDFInfo
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- CN103407494B CN103407494B CN201310380290.2A CN201310380290A CN103407494B CN 103407494 B CN103407494 B CN 103407494B CN 201310380290 A CN201310380290 A CN 201310380290A CN 103407494 B CN103407494 B CN 103407494B
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Abstract
The invention discloses a kind of longeron for vehicle frame, this longeron comprises: longeron body, longeron body is hollow tubular and comprises inner panel and outside plate, the front section of inner panel is provided with multiple inner panel endergonic structure, the front section of outside plate is provided with multiple outside plate endergonic structure; And brace panel, brace panel is positioned at longeron body interior and fixes with the front section of outside plate.Longeron of the present invention is when vehicle generation central collision, the crumple distortion of inner panel endergonic structure and outside plate endergonic structure can be utilized to absorb collision energy, when the speed of a motor vehicle is higher, after inner panel endergonic structure and outside plate endergonic structure fully absorb energy, unnecessary energy then can be absorbed by brace panel, greatly improve longitudinal beam front section inner panel endergonic structure and the outside plate endergonic structure situation that energy can not fully absorb fully presenting compression deformation, thus make leading portion distortion energy-absorbing district absorb maximum collision energies, avoid the longeron distortion of operator's compartment place and bear excessive crash acceleration, adequately protect occupant safety.
Description
Technical field
The present invention relates to automobile construction technical field, especially relate to a kind of longeron for vehicle frame.
Background technology
The structure of tradition chassis side rail is hollow tubular, and it comprises and fastens integrally welded inner panel and outside plate each other, when vehicle generation central collision, because longeron is hollow structure, therefore can absorb collision energy well.But in order to ensure stability and the reliability of vehicle frame, the bulk strength of longeron and rigidity are relatively high, thus cause energy-absorbing effect limited, and particularly when collision energy is larger, longitudinal beam front section can not absorb collision energy well.
Current solution offers energy-absorbing groove in longitudinal beam front section part, energy-absorbing groove is positioned at outside and/or the inner side of longeron body, concrete setting position is in the outside wall surface of the outside wall surface of the diapire of outside plate and the diapire of inner panel, like this after collision happens, energy-absorbing groove can absorb collision energy well.
But, for this energy-absorbing mode, still can not meet collision energy-absorbing requirement well, such as very high and after there is central collision in the speed of vehicle, energy-absorbing groove still has some even most of collision energies rearward to transmit after having absorbed local collision energy, the rail portion gross distortion causing operator's compartment corresponding, thus the personal safety threatening chaufeur in operator's compartment and occupant.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical matters of the prior art at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of longeron for vehicle frame, and this longeron is provided with brace panel for reasonably strengthening the intensity of outside plate, thus can absorb collision energy better.
According to the longeron for vehicle frame of the present invention, comprise: longeron body, described longeron body is hollow tubular and comprises inner panel and outside plate, the front section of described inner panel is provided with multiple inner panel endergonic structure, the front section of described outside plate is provided with multiple outside plate endergonic structure; And brace panel, described brace panel is positioned at described longeron body interior and fixes with the front section of described outside plate.
According to the longeron for vehicle frame of the embodiment of the present invention when vehicle generation central collision, the crumple distortion of inner panel endergonic structure and outside plate endergonic structure can be utilized to absorb collision energy, when the speed of a motor vehicle is higher, after inner panel endergonic structure and outside plate endergonic structure fully absorb energy, unnecessary energy then can be absorbed by brace panel, greatly improve longitudinal beam front section inner panel endergonic structure and the outside plate endergonic structure situation that energy can not fully absorb fully presenting compression deformation, thus make leading portion distortion energy-absorbing district absorb maximum collision energies, avoid the longeron distortion of operator's compartment place and bear excessive crash acceleration, adequately protect occupant safety.
In addition, according to the longeron for vehicle frame of the embodiment of the present invention, can also following additional technical feature be had:
According to some embodiments of the present invention, described multiple inner panel endergonic structure and described multiple outside plate endergonic structure are at the transversely one_to_one corresponding respectively of described vehicle frame, and the degree of depth of described multiple inner panel endergonic structure and width increase progressively from front to back successively, the degree of depth and the width of described multiple outside plate endergonic structure increase progressively from front to back successively.
The crumple distortion one by one of multiple like this inner panel endergonic structure and multiple outside plate endergonic structure, thus form multistage energy-absorbing form, collision energy is absorbed at each inner panel endergonic structure and outside plate endergonic structure place step by step.And the degree of depth of multiple inner panel endergonic structure and multiple outside plate endergonic structure and width increase progressively gradually according to direction from front to back, thus collision energy can be absorbed better, reduce the energy rearward transmitted to greatest extent, protect the safety of operator's compartment better.
According to some embodiments of the present invention, one that is positioned at rearmost end in described multiple inner panel endergonic structure is formed on the upper seamed edge of described inner panel, and remaining inner panel endergonic structure to be respectively formed on described inner panel on seamed edge and lower seamed edge; One that is positioned at rearmost end in described multiple outside plate endergonic structure is formed on the upper seamed edge of described outside plate, on the upper seamed edge that remaining outside plate endergonic structure is respectively formed at described outside plate and lower seamed edge.
According to some embodiments of the present invention, the cross-sectional plane of described inner panel, described outside plate and described brace panel is U-shaped, and toward each other, the opening of described outside plate and described brace panel is towards identical for the opening of described outside plate and described inner panel.
According to some embodiments of the present invention, the diapire relative with the opening of described brace panel of described brace panel comprises leading portion connected successively from front to back, stage casing and back segment, described leading portion and described back segment are integrally welded with the diapire relative with the opening of described outside plate of, described outside plate respectively, parallel and interval first preset distance of the described diapire of described stage casing and described outside plate.
Thus, the diapire of the leading portion of the diapire of brace panel and back segment and outside plate is welded and fixed, the diapire of stage casing and outside plate is spaced apart, thus brace panel is suitable for the reinforcement degree of outside plate front section, avoid excessively strengthening outside plate front section, and then ensure the energy-absorbing function that inner panel and outside plate itself have, and the diapire of stage casing and outside plate is spaced apart, brace panel is made to be roughly arch configuration in the vertical, thus the deformation direction of brace panel itself can be guided in collision process, make it towards the Direction distortion of longeron body interior space abundance, avoid affecting the deformation space even compressing side rail and girder plate.
According to some embodiments of the present invention, described first preset distance is 7mm-11mm.
According to some embodiments of the present invention, described stage casing is formed with induced distortion structure.Thus, when vehicle high-speed collides, induced distortion structure can guide brace panel towards the Direction distortion of longeron body interior space abundance better, avoids the deformation space affecting side rail and girder plate.
According to some embodiments of the present invention, the intersection of described stage casing and described back segment is formed with brace panel endergonic structure, and described brace panel endergonic structure is corresponding with the outside plate endergonic structure being positioned at rearmost end.
According to some embodiments of the present invention, described outside plate endergonic structure is three groups, one group of being positioned at foremost comprises two outside plate endergonic structures and is respectively formed at the upper seamed edge of described outside plate and lower seamed edge, one group that is positioned at centre comprises two outside plate endergonic structures and is respectively formed at the upper seamed edge of described outside plate and lower seamed edge, and one group that is positioned at rearmost end comprises an outside plate endergonic structure and is formed on the upper seamed edge of described outside plate; The front end face of described brace panel is at the second preset distance place in front being positioned at one group of middle outside plate endergonic structure, and the aft end face of described brace panel is at the 3rd preset distance place at rear of one group of outside plate endergonic structure being positioned at rearmost end.
According to some embodiments of the present invention, described second preset distance is 50mm-70mm, and described 3rd preset distance is 14mm-22mm.
Accompanying drawing explanation
Fig. 1 is the partial side view of longeron according to an embodiment of the invention;
Fig. 2 is the partial top view of longeron according to an embodiment of the invention;
Fig. 3 invents the girder plate of an embodiment and the schematic diagram of brace panel according to plate;
Fig. 4 invents the girder plate of an embodiment and the schematic top plan view of brace panel according to plate;
Fig. 5 is the schematic diagram of the horizontal section of girder plate and brace panel according to an embodiment of the invention, and the diapire of outside plate and the diapire of brace panel are wherein only shown;
Fig. 6 is the cross sectional representation of brace panel.
Reference numeral:
Longeron body 1;
Outside plate 11, outside plate endergonic structure (outside plate energy-absorbing groove) 111, the diapire 112 of outside plate;
Inner panel 12, inner panel endergonic structure (inner panel energy-absorbing groove) 121;
Brace panel 3, the top sidewall 31 of brace panel, the bottom sidewall 32 of brace panel, the diapire 33 of brace panel, leading portion 331, stage casing 332, back segment 333, induced distortion structure 34, brace panel endergonic structure (brace panel energy-absorbing groove) 35;
First preset distance h1, the second preset distance h2, the 3rd preset distance h3.
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 " 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 two or more, 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.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Describe the longeron for vehicle frame according to the embodiment of the present invention below with reference to Fig. 1-Fig. 6, the longeron wherein shown in Fig. 1 and Fig. 2 is the longeron on the left of vehicle forward direction.
Longeron according to an embodiment of the invention for vehicle frame can comprise longeron body 1 and brace panel 3.
As shown in Figure 2, longeron body 1 can comprise inner panel 12 and outside plate 11, and the cross-sectional plane of inner panel 12 and outside plate 11 all can be U-shaped.In other words, each in inner panel 12 and outside plate 11 includes diapire, top sidewall and bottom sidewall, and top sidewall is located at the edge, top of diapire, and bottom sidewall is located at the edge, the end of diapire.Inner panel 12 and outside plate 11 can be one-body molded, can certainly be segmentation structures.But, should be appreciated that and the present invention includes but be not limited thereto.In addition, it should be noted that, " U-shaped " that the cross-sectional plane of inner panel 12 and outside plate 11 all can be in U-shaped should make broad understanding, such as, can be understood as the shape roughly the same with U-shaped.
Outside plate 11 is positioned at outside, inner panel 12 is positioned at inner side, the opening of outside plate 11 opening and inner panel 12 is toward each other to snap together, and the longeron body 1 of be integrally fixed by the mode of welding structure thus formation hollow tubular, not only material usage can be saved thus, make longeron body 1 lightweight more, simultaneously when vehicle generation central collision (comprising biased central collision), the longeron body 1 of hollow structure can also absorb collision energy to a certain extent.According to an example of the present invention, to be positioned at the longeron body 1 in left side in vehicle forward direction, the opening of its outside plate 11 is towards right side (inside car), and the opening of inner panel is towards left side (outside car).
Inner panel 12 has front section, and that is, inner panel 12 has front-end and back-end, the front section being described inner panel 12 from front end towards the part of rear end definite length extended of inner panel 12.The front section of this inner panel 12 is provided with multiple inner panel endergonic structure 121, can there is crumple distortion in inner panel endergonic structure 121, thus absorb collision energy when vehicle generation central collision.According to some embodiments of the present invention, inner panel endergonic structure 121 is inner panel energy-absorbing groove, and inner panel energy-absorbing groove is formed by punching press.
Equally, outside plate 11 has front section, and that is, outside plate 11 has front-end and back-end, the front section being described outside plate 11 from front end towards the part of rear end definite length extended of outside plate 11.The front section of this outside plate 11 is provided with multiple outside plate endergonic structure 111, can there is crumple distortion in outside plate endergonic structure 111, thus absorb collision energy when vehicle generation central collision.According to some embodiments of the present invention, outside plate endergonic structure 111 is outside plate energy-absorbing groove, and outside plate energy-absorbing groove is formed by punching press.
As shown in Figure 3 and Figure 4, it is inner that brace panel 3 is positioned at longeron body 1, and brace panel 3 is fixed with the front section of outside plate 11, thus strengthen the intensity of outside plate 11 to a certain extent.Thus, when vehicle generation central collision, particularly, if when vehicle speed is lower, inner panel endergonic structure 121 and outside plate endergonic structure 111 shrinkable are out of shape thus absorb collision energy, the collision energy that rail portion corresponding to rearward operator's compartment of decaying transmits, now because the speed of a motor vehicle is lower and collision energy is less, inner panel endergonic structure 121 and outside plate endergonic structure 111 Absorbable rod overwhelming majority collision energy.
And when vehicle speed is higher; although inner panel endergonic structure 121 and the distortion of outside plate endergonic structure 111 shrinkable are with absorption portion collision energy; but because the higher collision energy of the speed of a motor vehicle is very large; inner panel endergonic structure 121 and outside plate endergonic structure 111 can not completely or major part absorb collision energy; now remaining collision energy can be absorbed by brace panel 3; thus farthest can absorb the energy of front part of vehicle when vehicle generation high-speed crash; and then the energy rearward transmitted of decaying to greatest extent, the safety of protection occupant.
According to the longeron for vehicle frame of the embodiment of the present invention when vehicle generation central collision, the crumple distortion of inner panel endergonic structure 121 and outside plate endergonic structure 111 can be utilized to absorb collision energy, when the speed of a motor vehicle is higher, after inner panel endergonic structure 121 and outside plate endergonic structure 111 fully absorb energy, unnecessary energy then can be absorbed by brace panel 3, greatly improve longitudinal beam front section inner panel endergonic structure 121 and outside plate endergonic structure 111 situation that energy can not fully absorb fully presenting compression deformation, thus make leading portion distortion energy-absorbing district absorb maximum collision energies, avoid the longeron distortion of operator's compartment place and bear excessive crash acceleration, adequately protect occupant safety.
According to some embodiments of the present invention, shown in seeing figures.1.and.2, multiple inner panel endergonic structures 121 and multiple outside plate endergonic structure 111 are at the transversely one_to_one corresponding respectively of vehicle frame, and here, the transverse direction of vehicle frame is Width and the left and right directions of vehicle.But should be understood that, multiple inner panel endergonic structure 121 and multiple outside plate endergonic structure 111 are that fore-and-aft direction also can be interspersed in the longitudinal direction of vehicle frame.
In order to energy-absorbing better, the degree of depth and the width of multiple inner panel endergonic structure 121 increase progressively successively according to direction from front to back, the crumple distortion one by one of multiple like this inner panel endergonic structure 121, thus form multistage energy-absorbing form, collision energy is absorbed at each inner panel endergonic structure 121 place step by step.And the degree of depth of multiple inner panel endergonic structure 121 and width increase progressively gradually according to direction from front to back, thus collision energy can be absorbed better, reduce the energy rearward transmitted to greatest extent, protect the safety of operator's compartment better.
Equally, the degree of depth and the width of multiple outside plate endergonic structure 111 increase progressively successively according to direction from front to back, the crumple distortion one by one of multiple like this outside plate endergonic structure 111, thus form multistage energy-absorbing form, collision energy is absorbed at each outside plate endergonic structure 111 place step by step.And the degree of depth of multiple outside plate endergonic structure 111 and width increase progressively gradually according to direction from front to back, thus collision energy can be absorbed better, reduce the energy rearward transmitted to greatest extent, protect the safety of operator's compartment better.
As depicted in figs. 1 and 2, one that is positioned at rearmost end in multiple inner panel endergonic structure 121 is formed on the upper seamed edge of inner panel 12, and remaining inner panel endergonic structure 121 to be respectively formed on the upper seamed edge of inner panel 12 and lower seamed edge and preferably corresponding up and down.Like this, multiple inner panel endergonic structure 121 can crumple energy-absorbing better.Wherein, it should be noted that, the upper seamed edge of inner panel 12 is the top sidewall of inner panel 12 rib crossing with diapire, and the lower seamed edge of inner panel 12 is the rib that the bottom sidewall of inner panel 12 and diapire intersect.
Equally, one that is positioned at rearmost end in multiple outside plate endergonic structure 111 is formed on the upper seamed edge of outside plate 11, and remaining outside plate endergonic structure 111 to be respectively formed on the upper seamed edge of outside plate 11 and lower seamed edge and preferably corresponding up and down.Like this, multiple outside plate endergonic structure 111 can crumple energy-absorbing better.Wherein, it should be noted that, the upper seamed edge of outside plate 11 is the top sidewall of outside plate 11 rib crossing with diapire, and the lower seamed edge of outside plate 11 is the rib that the bottom sidewall of outside plate 11 and diapire intersect.
In some embodiments of the invention, the cross-sectional plane of inner panel 12, outside plate 11 and brace panel 3 is U-shaped, to be positioned at the longeron in left side in vehicle forward direction, the opening of its outside plate 11 is towards right side, the opening of inner panel 12 is relative with the opening of outside plate 11 towards left side, outside plate 11 and the integrally welded thus trussed stringer integral structure of inner panel 12.In addition, the opening of brace panel 3 and the opening of outside plate 11 towards identical, such as, all towards right side.
Further, in this embodiment, as Figure 4-Figure 6, the diapire 33 relative with the opening of brace panel 3 of brace panel 3 comprises leading portion 331 connected successively from front to back, stage casing 332 and back segment 333, and leading portion 331 and back segment 333 are integrally welded with the diapire 112 of outside plate 11 respectively.Here, the diapire 112 of outside plate 11 refers to the wall relative with the opening of outside plate 11.Parallel and interval first preset distance of the diapire 112 of stage casing 332 and outside plate 11, the h1 namely in Fig. 4.Here, it should be noted that, stage casing 332 is parallel with the diapire 112 of outside plate 11 should make broad understanding, such as stage casing 332 can be parallel with the diapire 112 of outside plate 11, very little angle can certainly be become, this angular range can within 10 °, and that is, here parallel can be understood as almost parallel.
Preferably, the first preset distance h1 is between 7mm-11mm.In other words, interval 7mm-11mm between the stage casing 332 of the diapire 33 of brace panel 3 and the diapire 112 of outside plate 11.More preferably, this first preset distance h1 is 9mm.
With reference to shown in Fig. 4, the length of stage casing 332 in the longitudinal direction of longeron is greater than the length of leading portion 331 in described longitudinal direction, and the length of stage casing 332 in described longitudinal direction is also greater than the length of back segment 333 in described longitudinal direction simultaneously.
Thus, leading portion 331 and the back segment 333 of the diapire 33 of brace panel 3 are welded and fixed with the diapire 112 of outside plate 11, stage casing 332 is spaced apart with the diapire 112 of outside plate 11, thus the reinforcement degree of brace panel 3 pairs of outside plate 11 front section is suitable for, avoid excessively strengthening outside plate 11 front section, and then ensure the energy-absorbing function that inner panel 12 itself has with outside plate 11, and stage casing 332 is spaced apart with the diapire 112 of outside plate 11, brace panel 3 is made to be roughly arch configuration in the vertical, thus the deformation direction of brace panel 3 itself can be guided in collision process, make it towards the Direction distortion of longeron body 1 inner space abundance, avoid affecting the deformation space even compressing side rail 12 and girder plate 11.
Wherein, the top sidewall 31 of brace panel 3 can be integrally welded with the top sidewall of outside plate 11, the bottom sidewall 32 of brace panel 3 also can be integrally welded with the bottom sidewall of outside plate 11, such brace panel 3 remove the stage casing 332 of its diapire 33 spaced apart with the diapire 112 of outside plate 11 outside, remainder all welds with outside plate 11.But, should be appreciated that and the present invention includes but be not limited thereto.
When vehicle generation high-speed crash, in order to induce stage casing 332 to be out of shape better, according to a preferred embodiment of the present invention, stage casing 332 is formed with induced distortion structure 34, as shown in Figure 3.Thus, when vehicle high-speed collides, induced distortion structure 34 can guide brace panel 3 towards the Direction distortion of longeron body 1 inner space abundance better, avoids the deformation space affecting side rail 12 and girder plate 11.
Induced distortion structure 34 can be induced distortion through hole, and induced distortion through hole is through stage casing 332 on the thickness direction in stage casing 332, and induced distortion through hole can be ellipse hole, the longitudinal direction of this ellipse hole and the length direction preferred parallel of longeron.Thus, brace panel 3 can be induced better to be out of shape.But the present invention is not limited to this, induced distortion through hole can also be manhole, rectangular through-hole, square through-hole or other polygonal through hole.
Preferably, induced distortion structure 34 is multiple and is spaced apart from each other in the longitudinal direction of longeron.The induced distortion structure 34 being wherein positioned at foremost is corresponding with the inner panel endergonic structure 121 and outside plate endergonic structure 111 being positioned at centre.
With reference to shown in Fig. 3 and Fig. 4, stage casing 332 is formed with brace panel endergonic structure 35 with the intersection of back segment 333, and brace panel endergonic structure 35 is corresponding with the outside plate endergonic structure 111 being positioned at rearmost end.In other words, outside plate endergonic structure 111 due to rearmost end is one and is positioned on upper seamed edge, therefore this brace panel endergonic structure 35 is preferably placed on the upper seamed edge of intersection, and the object arranged like this is excessively not strengthen side rail 12 and girder plate 11, and guide properly brace panel 3 is out of shape.According to some embodiments of the present invention, brace panel endergonic structure 35 is brace panel energy-absorbing groove, and this brace panel energy-absorbing groove is formed by impact style.
With reference to shown in Fig. 1, Fig. 2 and Fig. 4, in an example of the present invention, outside plate endergonic structure 111 is three groups, one group of being positioned at foremost comprises two outside plate endergonic structures 111 and on the upper seamed edge being preferably formed in outside plate 11 up and down accordingly and lower seamed edge, be positioned at middle one group and comprise two outside plate endergonic structures 111 and on the upper seamed edge being preferably formed in outside plate 11 up and down accordingly and lower seamed edge, one group that is positioned at rearmost end comprises an outside plate endergonic structure 111 and is only formed on the upper seamed edge of outside plate 11.Be appreciated that multiple inner panel endergonic structures 121 of inner panel 12 also can adopt and above-mentioned form is set.
In these three groups of outside plate endergonic structures 111, the width being positioned at an outside plate endergonic structure 111 of rearmost end can be maximum and the degree of depth can be the darkest.
As shown in Figure 4, the front end face of brace panel 3 is at the second preset distance place in front being positioned at one group of middle outside plate endergonic structure 111, and in other words, the front end face of brace panel 3 is positioned at the front of middle one group of outside plate endergonic structure 111 and interval second preset distance h2.The aft end face of brace panel 3 is at the 3rd preset distance place at rear of one group of outside plate endergonic structure 111 being positioned at rearmost end, and in other words, the aft end face of brace panel 3 is positioned at the rear of the outside plate endergonic structure 111 of rearmost end and interval the 3rd preset distance h3.
Thus, the front section of brace panel 3 pairs of outside plates 11 is made to have enough reinforcement length, so that brace panel 3 absorbs collision energy better.
Preferably, the second preset distance h2 is 50mm-70mm.3rd preset distance h3 is 14mm-22mm.Like this, brace panel 3 coordinates outside plate endergonic structure 111 can absorb collision energy better, also facilitates leading portion 331, back segment 333 to fit with the diapire 112 of outside plate 11 simultaneously and welds.More preferably, the second preset distance h2 is 60mm, and the 3rd preset distance h3 is 18mm.
Generally speaking; longeron is in accordance with a preferred embodiment of the present invention after vehicle generation central collision; can first by inner panel 12, outside plate 11 and inner panel endergonic structure 121 and outside plate endergonic structure 111 energy-absorbing; when collision energy is larger; unnecessary energy can be absorbed by brace panel 3, ensures that collision energy is farthest for longitudinal beam front section partially absorbs, and the operator's compartment distortion at protection rear is minimum or indeformable; greatly reduce impact acceleration suffered by operator's compartment, adequately protect occupant's personal safety.
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 an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification sheets or example can carry out engaging 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 (8)
1. for a longeron for vehicle frame, it is characterized in that, comprising:
Longeron body, described longeron body is hollow tubular and comprises inner panel and outside plate, the front section of described inner panel is provided with multiple inner panel endergonic structure, the front section of described outside plate is provided with multiple outside plate endergonic structure; And
Brace panel, described brace panel is positioned at described longeron body interior and fixes with the front section of described outside plate;
The cross-sectional plane of described inner panel, described outside plate and described brace panel is U-shaped, and toward each other, the opening of described outside plate and described brace panel is towards identical for the opening of described outside plate and described inner panel;
The diapire relative with the opening of described brace panel of described brace panel comprises leading portion connected successively from front to back, stage casing and back segment, described leading portion and described back segment are integrally welded with the diapire relative with the opening of described outside plate of described outside plate respectively, parallel and interval first preset distance of the described diapire of described stage casing and described outside plate.
2. the longeron for vehicle frame according to claim 1, it is characterized in that, described multiple inner panel endergonic structure and described multiple outside plate endergonic structure are at the transversely one_to_one corresponding respectively of described vehicle frame, and the degree of depth of described multiple inner panel endergonic structure and width increase progressively from front to back successively, the degree of depth and the width of described multiple outside plate endergonic structure increase progressively from front to back successively.
3. the longeron for vehicle frame according to claim 1, is characterized in that,
One that is positioned at rearmost end in described multiple inner panel endergonic structure is formed on the upper seamed edge of described inner panel, and remaining inner panel endergonic structure to be respectively formed on described inner panel on seamed edge and lower seamed edge;
One that is positioned at rearmost end in described multiple outside plate endergonic structure is formed on the upper seamed edge of described outside plate, on the upper seamed edge that remaining outside plate endergonic structure is respectively formed at described outside plate and lower seamed edge.
4. the longeron for vehicle frame according to claim 1, is characterized in that, described first preset distance is 7mm-11mm.
5. the longeron for vehicle frame according to claim 1, is characterized in that, described stage casing is formed with induced distortion structure.
6. the longeron for vehicle frame according to claim 1, is characterized in that, the intersection of described stage casing and described back segment is formed with brace panel endergonic structure, and described brace panel endergonic structure is corresponding with the outside plate endergonic structure being positioned at rearmost end.
7. the longeron for vehicle frame according to claim 1, is characterized in that,
Described outside plate endergonic structure is three groups, one group of being positioned at foremost comprises two outside plate endergonic structures and is respectively formed at the upper seamed edge of described outside plate and lower seamed edge, one group that is positioned at centre comprises two outside plate endergonic structures and is respectively formed at the upper seamed edge of described outside plate and lower seamed edge, and one group that is positioned at rearmost end comprises an outside plate endergonic structure and is formed on the upper seamed edge of described outside plate;
The front end face of described brace panel is at the second preset distance place in front being positioned at one group of middle outside plate endergonic structure, and the aft end face of described brace panel is at the 3rd preset distance place at rear of one group of outside plate endergonic structure being positioned at rearmost end.
8. the longeron for vehicle frame according to claim 7, is characterized in that, described second preset distance is 50mm-70mm, and described 3rd preset distance is 14mm-22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310380290.2A CN103407494B (en) | 2013-08-27 | 2013-08-27 | For the longeron of vehicle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310380290.2A CN103407494B (en) | 2013-08-27 | 2013-08-27 | For the longeron of vehicle frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103407494A CN103407494A (en) | 2013-11-27 |
| CN103407494B true CN103407494B (en) | 2016-01-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103738404B (en) * | 2013-11-29 | 2016-05-11 | 天津博信汽车零部件有限公司 | Vehicle frame and there is the vehicle of this vehicle frame |
| CN104828143B (en) * | 2014-12-04 | 2017-02-01 | 北汽福田汽车股份有限公司 | collision energy-absorbing longitudinal beam and frame |
| CN104843069B (en) * | 2015-04-13 | 2018-07-20 | 中航爱维客汽车有限公司 | Light bus Undercarriage structure and light bus structure |
| CN105923049B (en) * | 2016-04-25 | 2018-05-11 | 奇瑞汽车股份有限公司 | A kind of automobile longitudinal girder |
| CN109987140B (en) * | 2017-12-29 | 2020-07-24 | 长城汽车股份有限公司 | Automobile frame |
| CN108583689B (en) * | 2018-05-08 | 2023-08-01 | 江苏敏安电动汽车有限公司 | Longitudinal beam with force transmission structure and automobile |
| JP6801825B2 (en) * | 2018-07-20 | 2020-12-16 | 日本製鉄株式会社 | Structural members for vehicles |
| CN109131578B (en) * | 2018-10-31 | 2024-05-07 | 东风小康汽车有限公司重庆分公司 | Longitudinal beam front section of automobile |
| CN110949528B (en) * | 2019-11-25 | 2021-04-27 | 中国第一汽车股份有限公司 | Vehicle front end structure and vehicle |
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| JP2795010B2 (en) * | 1991-10-18 | 1998-09-10 | トヨタ自動車株式会社 | Car front side member |
| JP4802783B2 (en) * | 2006-03-15 | 2011-10-26 | マツダ株式会社 | Body front structure |
| JP5354154B2 (en) * | 2008-08-21 | 2013-11-27 | マツダ株式会社 | Automobile frame structure |
| CN102781765B (en) * | 2010-02-18 | 2015-01-21 | 福特全球技术公司 | Suspension tower structure for vehicle |
| CN201849532U (en) * | 2010-07-28 | 2011-06-01 | 浙江吉利汽车研究院有限公司 | Highly efficient energy absorbing longitudinal beam structure |
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