CN207191166U - A kind of automobile longitudinal girder with reinforcing plate - Google Patents
A kind of automobile longitudinal girder with reinforcing plate Download PDFInfo
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- CN207191166U CN207191166U CN201721211450.0U CN201721211450U CN207191166U CN 207191166 U CN207191166 U CN 207191166U CN 201721211450 U CN201721211450 U CN 201721211450U CN 207191166 U CN207191166 U CN 207191166U
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- reinforcing plate
- bending part
- longeron
- gap
- flange
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Abstract
The utility model provides a kind of automobile longitudinal girder with reinforcing plate, belongs to automobile technical field.The weak part that it is solved in existing longeron generally produces axial conquassation deformation, causes the intrusion volume of front panel big, is unfavorable for the problem of occupant injury is protected.This automobile longitudinal girder, including bottom plate, two side plates and the cavity surrounded by bottom plate and two side plates, the outer end of each side plate is provided with flange, the reinforcing plate one and reinforcing plate two being connected on longeron are provided with the cavity, there is gap between the reinforcing plate one and reinforcing plate two, characterized in that, having the bending part formed by high spot and lower recess at least one flange, the position in the gap is corresponding with bending part.During vehicle collides, stable bending deformation occurs about the z axis for the leading portion of longeron, and effective to absorb energy caused by collision, the energy of the direct transfers of impact load to front panel reduces so that the intrusion volume of front panel is small, is advantageous to the protection to occupant.
Description
Technical field
The utility model belongs to automobile technical field, is related to a kind of automobile longitudinal girder, particularly a kind of vapour with reinforcing plate
Car longeron.
Background technology
When head-on crash occurs for vehicle, substantial amounts of energy can be produced, forward engine room longeron is as the most important change of front part of vehicle
Shape energy-absorbing and force transferring structure, the impact load of crew module is transferred to for absorbing collision energy, decomposition and reduction so that vehicle is sent out
The energy that raw head-on crash passes to crew module is smaller, and the injury to occupant is also smaller.
At present, Chinese patent net discloses a kind of front rail structure of automobile body (application number：200910191263.4), it
Include the Z-shaped front longitudinal extended along vehicle body fore-and-aft direction, the front longitudinal includes horizontal epimere, is connected with epimere rear portion
Descending section and the linkage section that is extended back by descending segment trailer, the top edge of the epimere and the Z-shaped lower edge of front longitudinal
Provided with flange, in the groove of the front longitudinal epimere before, during and after be respectively welded front stiffener, middle part reinforcing plate and
Rear stiffener, the top edge flange that the top edges of three pieces of reinforcing plates is equipped with flange and the epimere are affixed weldering, in, rear portion adds
Gap is left between strong plate.
Space is left between above-mentioned middle part reinforcing plate and rear stiffener, the gap is turned into more weak in longeron
Position, belong to energy-absorbing position, the position longeron deforms upon at the position when a vehicle is in a collision carrys out apparatus with shock absorbing,
Reduce the extruding to main cabin direction.But when being collided in the case of car speed is faster, the weak point in above-mentioned longeron
Position generally produces axial conquassation deformation, and bending deformation will not occur, cause the direct transfers of impact load to cause to front panel
The intrusion volume of front panel is big, is unfavorable for occupant injury protection.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of vapour with reinforcing plate
Car longeron, the technical problem that the utility model solves are：How to ensure that longeron can occur surely during vehicle collides
Fixed bending deformation.
The purpose of this utility model can be realized by following technical proposal：A kind of automobile longitudinal girder with reinforcing plate, institute
Longeron is stated to be provided with including bottom plate, two side plates and the cavity surrounded by bottom plate and two side plates, the outer end of each side plate
Flange, is provided with the reinforcing plate one and reinforcing plate two being connected on longeron in the cavity, the reinforcing plate one and reinforcing plate two it
Between there is gap, it is characterised in that there is high spot and lower recess at least one flange and form bending part, it is described plus
Strong plate one and reinforcing plate two are resisted against on the inner bottom surface of bottom plate, and the position in the gap is corresponding with bending part.
The integrally-built intensity of longeron is improved by setting reinforcing plate one and reinforcing plate two in the cavity of longeron, is strengthened
Plate one and reinforcing plate two cause the thickness increase of the bottom plate of gap both sides after being resisted against on the inner bottom surface of bottom plate, and then intensity obtains
Strengthen, and the gap location between reinforcing plate one and reinforcing plate two is the strength weak position of bottom plate, the bending part on flange has
The longeron effect that bending deforms in this place is guided, during vehicle collides, positive bump stroke is acted on longeron, larger
Stress concentration bending part on so that the leading portion of longeron first bending deformation on bending part, and then trigger longeron strengthening
Bending deformation occurs for the gap location between plate one and reinforcing plate two, finally causes the leading portion of longeron that bending deformation occurs about the z axis, has
Energy caused by the absorption collision of effect, the energy of the direct transfers of impact load to front panel reduce so that front panel is invaded
Enter that amount is small, be advantageous to the protection to occupant.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, the bending part is one, the bending part offside
Flange is provided with bending part corresponding with the high spot on bending part.After ensureing that longeron is hit, a flange is in bending part
Bending deformation occurs for high spot, and in bending part bending deformation occurs for another flange, ensures that longeron can realize that stable bending becomes
Shape.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, the gap corresponds to the lower recess on bending part.Strengthen
Gap between plate one and reinforcing plate two is corresponding with the lower recess on bending part, because longeron occurs along gap clockwise about the z axis
Bending deforms, and the lower recess is not susceptible to bending deformation clockwise, therefore bending clockwise occurs along gap in longeron and deforms
When the lower recess can absorb more impact load.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, on the flange of the bending part offside have with it is described between
The corresponding bar-shaped trough of gap.The bar-shaped trough is not susceptible to bending deformation clockwise, therefore folding clockwise occurs along gap in longeron
The bar-shaped trough can absorb more impact load during bending deformation.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, the longeron causes the flange shape to a flange lateral bend
Into described bending part.The generation type of bending part is simple, is readily produced manufacture, improves production efficiency, reduces production cost.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, the bending part is two and symmetrically set on two flange
Put, the position in the gap is corresponding with the lower recess of bending part.Bending part is equipped with two flange, when vehicle collides
During, positive bump stroke is acted on longeron, larger stress concentration two bending parts on so that the leading portion of longeron is two
First bending deformation on bending part, and then trigger gap location of the longeron between reinforcing plate one and reinforcing plate two that bending deformation occurs,
Finally so that bending deformation occurs about the z axis for the leading portion of longeron, and the lower recess of bending part is not susceptible to bending deformation clockwise,
Therefore more impact load can be absorbed by lower recess when bending clockwise deforms occurring along gap in longeron.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, the gap between described reinforcing plate one and reinforcing plate two
For 5-15mm.Gap make it that the width in gap is smaller, is advantageous to stress concentration on the gap within the scope of 5-15mm, ensures
Longeron occurs stable bending along gap and deformed.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, the gap between described reinforcing plate one and reinforcing plate two
For 10mm.Gap setting is that 10mm make it that effect of the longeron along the stable bending deformation of gap generation is best.
In a kind of above-mentioned automobile longitudinal girder with reinforcing plate, described reinforcing plate one is suspension mounting bracket, described
Reinforcing plate two is subframe mounting bracket.The stage casing of longeron cavity is typically to suspend mount point and subframe mount point region, is indulged
The space of beam cavity is smaller, and to be separately provided reinforcing plate in the cavity of longeron, this mode both influences to be welded traditional mode
Technique increases manufacturing cost again, and suspension mounting bracket and subframe mounting bracket are directly welded on longeron by the utility model to be made
For two reinforcing plates of longeron, the manufacturing cost of longeron is significantly reduced.
Compared with prior art, automobile longitudinal girder of the present utility model has advantages below：During vehicle collides,
Positive bump stroke is acted on longeron, larger stress concentration bending part on so that the leading portion of longeron on bending part first
Bending deforms, and then triggers gap location of the longeron between reinforcing plate one and reinforcing plate two that bending deformation occurs, and finally causes vertical
Stable bending deformation occurs about the z axis for the leading portion of beam, effective to absorb energy caused by collision, the direct transfers of impact load
Energy to front panel reduces so that the intrusion volume of front panel is small, is advantageous to the protection to occupant.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is dimensional structure diagram of the present utility model.
In figure, 1, longeron；2nd, bottom plate；3rd, side plate；4th, cavity；5th, flange；51st, bending part；511st, high spot；512nd, it is recessed
Place；52nd, bending part；53rd, bar-shaped trough；6th, reinforcing plate one；7th, reinforcing plate two；8th, gap.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment 1
As shown in Figure 1, Figure 2 and shown in Fig. 3, longeron 1 includes 2, two side plates 3 of bottom plate and enclosed by bottom plate 2 and two side plates 3
Into cavity 4, the outer end of each side plate 3 is provided with flange 5, the He of reinforcing plate 1 being connected on longeron 1 is provided with cavity 4
Reinforcing plate 27, has gap 8 between reinforcing plate 1 and reinforcing plate 27, longeron 1 causes the shape of flange 5 to the lateral bend of a flange 5
Into bending part 51, reinforcing plate 1 and reinforcing plate 27 are resisted against on the inner bottom surface of bottom plate 2, position and the bending part 51 in gap 8
It is corresponding.The flange 5 of the offside of bending part 51 is provided with bending part 52 corresponding with the high spot 511 on bending part 51；Gap 8 is right
Answer the lower recess 512 on bending part 51；Depression forms bar shaped corresponding to the gap 8 downwards on the flange 5 of the offside of bending part 51
Groove 53.During vehicle collides, stress caused by shock focuses first on the high spot of the bending part 51 of flange 5
511 and another flange 5 bending part 52 on, bending part 51 and bending part 52 first induce longeron 1 that bending clockwise occurs in this place
Deformation, and then trigger longeron 1 that bending deformation occurs at the gap 8 between reinforcing plate 1 and reinforcing plate 27, finally cause vertical
Bending deformation occurs about the z axis for the leading portion of beam 1；During along gap 8 bending deformation occurs for longeron 1, the lower recess of bending part 51
512 and bar-shaped trough 53 can absorb energy caused by more collision.
Gap 8 between reinforcing plate 1 and reinforcing plate 27 is 5-15mm, is preferably 10mm in the present embodiment 1.Reinforcing plate
One 6 be suspension mounting bracket, and reinforcing plate 27 is subframe mounting bracket.
Embodiment 2
The present embodiment 2 and the content of embodiment 1 are essentially identical, and difference is：The bending part 51 of the present embodiment 2 be two and
It is symmetrical arranged on two flange 5, the position in gap 8 is corresponding with the lower recess 512 of bending part 51.It is equipped with two flange 5
Bending part 51, during vehicle collides, positive bump stroke is acted on longeron 1, stress concentration two bending parts 51
On so that the first bending deformation on two bending parts 51 of the leading portion of longeron 1, and then trigger longeron 1 in reinforcing plate 1 and reinforcing plate two
Bending deformation occurs at gap 8 between 7, finally causes the leading portion of longeron 1 that bending deformation occurs about the z axis, in longeron 1 along gap
The 8 lower recesses 512 that bending part 51 when bending clockwise deforms occurs can absorb more impact load.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein longeron 1, bottom plate 2, side plate 3, cavity 4, flange 5, bending part 51, high spot 511,
The terms such as lower recess 512, bending part 52, bar-shaped trough 53, reinforcing plate 1, reinforcing plate 27, gap 8, but be not precluded from using it
The possibility of its term.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It
Be construed to any additional limitation and all disagreed with the utility model spirit.
Claims (9)
1. a kind of automobile longitudinal girder with reinforcing plate, the longeron (1) includes bottom plate (2), two side plates (3) and by bottom plate
(2) and the cavity (4) that surrounds of two side plates (3), the outer end of each side plate (3) is provided with flange (5), in the cavity (4)
Provided with the reinforcing plate one (6) and reinforcing plate two (7) being connected on longeron (1), the reinforcing plate one (6) and reinforcing plate two (7) it
Between there are gap (8), it is characterised in that there is high spot (511) and lower recess (512) simultaneously at least one flange (5)
Bending part (51) is formed, the reinforcing plate one (6) and reinforcing plate two (7) are resisted against on the inner bottom surface of bottom plate (2), the gap
(8) position is corresponding with bending part (51).
2. a kind of automobile longitudinal girder with reinforcing plate according to claim 1, it is characterised in that the bending part (51) is
One, the flange (5) of bending part (51) offside is provided with bending part corresponding with the high spot (511) on bending part (51)
(52)。
3. a kind of automobile longitudinal girder with reinforcing plate according to claim 2, it is characterised in that the gap (8) is corresponding
Lower recess (512) on bending part (51).
4. a kind of automobile longitudinal girder with reinforcing plate according to claim 2, it is characterised in that the bending part (51) is right
There is the bar-shaped trough (53) corresponding with the gap (8) on the flange (5) of side.
5. a kind of automobile longitudinal girder with reinforcing plate according to claim 2, it is characterised in that the longeron (1) is to one
Flange (5) lateral bend causes the flange (5) to form described bending part (51).
6. a kind of automobile longitudinal girder with reinforcing plate according to claim 1, it is characterised in that the bending part (51) is
Two and it is symmetrical arranged on two flange (5), the position of the gap (8) is corresponding with the lower recess (512) of bending part (51).
7. a kind of automobile longitudinal girder with reinforcing plate according to claim any one of 1-6, it is characterised in that described adds
The gap (8) between plate one (6) and reinforcing plate two (7) is 5-15mm by force.
A kind of 8. automobile longitudinal girder with reinforcing plate according to claim 7, it is characterised in that described reinforcing plate one
(6) gap between reinforcing plate two (7) (8) are 10mm.
9. a kind of automobile longitudinal girder with reinforcing plate according to claim any one of 1-6, it is characterised in that described adds
Strong plate one (6) is suspension mounting bracket, and the reinforcing plate two (7) is subframe mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211450.0U CN207191166U (en) | 2017-09-20 | 2017-09-20 | A kind of automobile longitudinal girder with reinforcing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211450.0U CN207191166U (en) | 2017-09-20 | 2017-09-20 | A kind of automobile longitudinal girder with reinforcing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207191166U true CN207191166U (en) | 2018-04-06 |
Family
ID=61789769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721211450.0U Active CN207191166U (en) | 2017-09-20 | 2017-09-20 | A kind of automobile longitudinal girder with reinforcing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207191166U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583689A (en) * | 2018-05-08 | 2018-09-28 | 江苏敏安电动汽车有限公司 | Longeron with force transferring structure and automobile |
-
2017
- 2017-09-20 CN CN201721211450.0U patent/CN207191166U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583689A (en) * | 2018-05-08 | 2018-09-28 | 江苏敏安电动汽车有限公司 | Longeron with force transferring structure and automobile |
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