CN105313986B - Fascia board girder - Google Patents
Fascia board girder Download PDFInfo
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- CN105313986B CN105313986B CN201410377972.2A CN201410377972A CN105313986B CN 105313986 B CN105313986 B CN 105313986B CN 201410377972 A CN201410377972 A CN 201410377972A CN 105313986 B CN105313986 B CN 105313986B
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- fracture zone
- crumple zones
- holding area
- body front
- front wall
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Abstract
A kind of fascia board girder is connect with body front wall region, wherein, include with the connection structure in body front wall region：Crumple zones, fracture zone and holding area；The crumple zones are connect with the body front wall region, suitable for receiving the impact force transmitted via the body front wall region；The fracture zone is connect respectively with the crumple zones and the holding area, during suitable for receiving the impact force transmitted via the body front wall region in the crumple zones, is broken；The end face of the holding area and the fracture zone connecting pin is more than the end face of the crumple zones and the fracture zone connecting pin；When the holding area is suitable for being broken in the fracture zone, the crumple zones are housed.By the fascia board girder, the security performance of automobile can be enhanced.
Description
Technical field
The present invention relates to field of automobile more particularly to a kind of fascia board girders.
Background technology
Fascia board girder is the inner skeleton of instrument panel syste, in the car in passenger compartment left and right A columns it
Between.It can be that other systems and component etc. provide installation site and support in cockpit.Meanwhile as instrument panel syste and vehicle body
Connecting bracket between assembly, it can also play the intensity for increasing entire vehicle body, the effective protection occupant when vehicle is hit
Effect.Thus its intensity and rigidity are the primary indexs of its performance.
In dashboard cross member, the structure for being used to support car steering tube column is connected to body assembly.Specifically, it is to connect
The front region of vehicle body is connected to, such as the front windshield lower beam under front windshield.It is above-mentioned when head-on crash occurs for vehicle
The longitudinal force that structure can will collide generation is transmitted from enging cabin by front windshield lower beam towards dashboard cross member, so as to there is initiation
Steering column generates the risk of displacement.In this way, the steering wheel of steering column connection will pop up backward.It on the one hand may be direct
Driver and passenger are struck, are damaged, it, also can be to the bullet of air bag if on the other hand safe automobile air bag is ejected at this time
Out position impacts, and then influences the position of human impact's air bag, also be easy to cause injury.People is driven for protection
The considerations of member, such case needs avoid.
Invention content
The embodiment of the present invention solves the problems, such as it is how to enhance the security performance of automobile when vehicle collides, protection
Driver and passenger.
To solve the above problems, the embodiment of the present invention provides a kind of fascia board girder, it is connect with body front wall region,
It is characterized in that, include with the connection structure in body front wall region：Crumple zones, fracture zone and holding area；The crumple zones with
The body front wall region connection, suitable for receiving the impact force transmitted via the body front wall region；The fracture zone difference
It connect with the crumple zones and the holding area, is rushed suitable for being received in the crumple zones via what the body front wall region was transmitted
When hitting power, it is broken；The holding area and the end face of the fracture zone connecting pin are more than the crumple zones and the fracture zone
The end face of connecting pin；When the holding area is suitable for being broken in the fracture zone, the crumple zones are housed.
Optionally, the length in the holding area towards the fracture zone direction is more than the crumple zones towards the fracture zone
The length in direction.
Optionally, the connection structure further includes reinforcing rib, is arranged on the crumple zones and the body front wall region
Connecting pin.
Optionally, the fracture zone includes the first boss and second boss that overlap, the first boss it is transversal
Area is less than the cross-sectional area of the second boss, and the first boss connects the crumple zones, the second boss connection
The holding area.
Optionally, weakening structure is distributed in the second boss.
Optionally, the weakening structure is through-hole.
Optionally, the weakening structure is reduction slot.
Optionally, the crumple zones, the fracture zone and the holding area are integrally formed.
Compared with prior art, the technical solution of the embodiment of the present invention has the following advantages：
By setting crumple zones, fracture zone and holding in the connection structure in fascia board girder Yu body front wall region
Area so that when head-on crash occurs for vehicle, by crumple zones stress first, and pass through the fracture zone being broken and enter holding
Area, so as to play the effect for slowing down body front wall region to the impact force of holding area and delay collision time, therefore can
The displacement of steering column is reduced, and air bag is made to pop up in time, so as to enhance the security performance of automobile.
Further, by the way that the connecting pin of crumple zones and body front wall region is set reinforcing rib, its connecting pin is strengthened
Intensity, it is possible to reduce the degree and possibility of crumple zones fragmentation when being impacted, so as to allow it according to preset crumple
Path enters holding area, further enhances vehicle safety performance.
Further, by setting weakening structure in the second boss of fracture zone, make crumple zones when being hit, it can be with
Along holding area is entered towards the direction of holding area, its guidance quality is enhanced.
Further, it by the way that the crumple zones of bindiny mechanism, fracture zone and holding area integrated die-casting are molded, avoids individually tying
Structure connects issuable rigging error, and reduces manufacture cost.
Description of the drawings
Fig. 1 is a kind of structure diagram of fascia board girder in the embodiment of the present invention；
Fig. 2 is the sectional view of fascia board girder shown in Fig. 1 and body front wall region connection structure；
Fig. 3 be fascia board girder shown in Fig. 1 with body front wall region connection structure cuing open after vehicle collides
View；
Fig. 4 is a kind of structure diagram of fracture zone in the embodiment of the present invention；
Fig. 5 is another structure diagram of fracture zone in the embodiment of the present invention；
Fig. 6 is from crumple zones towards a kind of signal of weakening structure on the fracture zone of fracture zone direction in the embodiment of the present invention
Figure；
Fig. 7 is from crumple zones towards another signal of weakening structure on the fracture zone of fracture zone direction in the embodiment of the present invention
Figure；
Fig. 8 is from crumple zones towards another signal of weakening structure on the fracture zone of fracture zone direction in the embodiment of the present invention
Figure；
Fig. 9 is from crumple zones towards another signal of weakening structure on the fracture zone of fracture zone direction in the embodiment of the present invention
Figure.
Specific embodiment
In existing dashboard cross member, the structure for being used to support car steering tube column is connected to body assembly, specific next
It says, is attached to the front region of vehicle body, such as the front windshield lower beam under front windshield.When head-on crash occurs for vehicle
When, above-mentioned structure can directly be passed the longitudinal force for colliding generation from enging cabin by front windshield lower beam towards dashboard cross member
It send, so as to there is the risk for causing steering column and generating displacement.
Due to needing to support steering column load, the effective mass of dashboard cross member is concentrated mainly on driver lateral areas
Domain.In this way, when the steering wheel of steering column connection pops up backward, driver and passenger on the one hand may be directly impinged, are caused
Compared with major injury, if on the other hand safe automobile air bag is ejected at this time, the ejected position of air bag can also be impacted,
And then the position of human impact's air bag is influenced, also it be easy to cause injury.The considerations of for protection driver and passenger, this feelings
Condition needs avoid.
In an embodiment of the present invention, by being set in the connection structure in fascia board girder with body front wall region
Crumple zones, fracture zone and holding area so that when head-on crash occurs for vehicle, by crumple zones stress first, and it is disconnected to pass through generation
The fracture zone split enters holding area, slows down body front wall region to the impact force of holding area and delay shock so as to play
The effect of time, therefore the displacement of steering column can be reduced, and air bag is made to pop up in time, it ensure that driver and passenger's
Safety.
It is understandable for the above-mentioned purpose of the embodiment of the present invention, feature and advantage is enable to become apparent, it is right below in conjunction with the accompanying drawings
Specific embodiments of the present invention are described in detail.
An embodiment of the present invention provides a kind of fascia board girder, with reference to Fig. 1, the fascia board girder 1, with vehicle
Body front region 2 connects, and connecting pin 6 is also connect with the centre gangway of vehicle body 7.Fascia board girder 1 and body front wall area
The connection structure in domain 2 includes：Crumple zones 3, fracture zone 4 and holding area 5.Wherein：
The crumple zones 3 are connect with the body front wall region 2, are transmitted suitable for receiving via the body front wall region 2
Impact force.The fracture zone 4 is connect respectively with the crumple zones 3 and the holding area 5, suitable for being received in the crumple zones 3
Via the body front wall region 2 transmit impact force when, be broken.The holding area 5 and 4 connecting pin of fracture zone
End face is more than the end face of the crumple zones 3 and 4 connecting pin of fracture zone；The holding area 5 is suitable for being broken in the fracture zone 4
When, house the crumple zones 3.
The connection structure of fascia board girder is connect with body front wall region 2.According to different vehicles, dashboard cross member
Link position from body front wall region 2 can be different.For example, it may be intermediate region and the air regulator of fascia board girder 1
Bottom end rail connects or can be that the intermediate region of fascia board girder 1 is connect with motorcar body front panel.
In the above-described embodiment, when vehicle is impacted by head-on crash, due to directly connecting with body front wall region 2
It connects, the crumple zones 3 of the connection structure can receive the impact force transmitted via the body front wall region 2 first, and rush
It hits under the action of power, the fracture zone 4 being connect with the crumple zones 3 is broken.The inside of the holding area 5 is hollow-core construction,
And its end face with 4 connecting pin of fracture zone is more than the end face of the crumple zones 3 and 4 connecting pin of fracture zone.Such as Fig. 2 and
Shown in Fig. 3, i.e., the maximum height H1 of described 3 connecting end surface of crumple zones needs to be less than the minimum height of 5 connecting end surface of holding area
Spend H2.Therefore when the fracture zone 4 is broken, the crumple zones 3 can enter the holding area 5 under the action of impact force
Interior space, ensure that the crumple zones 3 and the holding area 5 may remain in together.
After the crumple zones 3 are completely into holding area 5, the front region 2 of vehicle body can just strike described at this time
In holding area 5, i.e., impact is generated to fascia board girder 1.It can be seen that fascia board girder 1 through this embodiment
Connection structure, can collide occur when, reduce the impact force transmitted in body front wall region 2 by the blocking of fracture zone 4.Together
When due to only the crumple zones 3 enter the holding area 5 after, body front wall region 2 can just strike the automobile instrument
On plate crossbeam 1, so body front wall region 2 has been delayed to strike the collision time of fascia board girder 1, ensure onboard system
When controlling air bag pop-up, air bag can in time pop up in place.
In the above-described embodiment, as an alternative embodiment, with reference to Fig. 2, the holding area 5 is broken towards described
The length L2 in 4 direction of split plot is more than length L1 of the crumple zones 3 towards 4 direction of fracture zone.At this point, it only bursts described
After contracting area 3 is completely into the holding area 5, the body front wall region 2 can just strike the fascia board girder 1.Cause
This can be by setting the length L1 of crumple zones 3 to control the buffering effect of the connection structure.Specifically, the crumple zones 3
Length L1 can be tested according to vehicle head-on crash, the requirement of the reduction of required absorption to the Impact energy of occupant injury
It defines, to obtain best buffering effect.
In the above-described embodiment, the crumple zones 3 and the shape of 4 connecting end surface of fracture zone, according to itself and vehicle body
The type of attachment and peripheral component deployment scenarios of front region 2 are specifically defined.The connecting end surface can be quadrangle, circle or
The shapes such as irregular abnormity.The shape of the holding area 5 and the 4 connecting pin end face of fracture zone need it is corresponding consistent or
The size of connecting end surface described in person is enough to ensure that the crumple zones 3 can enter.
In the above-described embodiment, as an alternative embodiment, form above-mentioned connection structure various pieces and
The agent structure of fascia board girder 1 can be integrated die-casting molding.By the way that each part mentioned above is integrally formed, reduce routed
Contracting area 3, fracture zone 4 and holding area 5, can be to avoid thus by the independent structure issuable rigging error of assembly and connection institute again
Caused 3 crumple Path error of crumple zones and influence buffering effect of the bindiny mechanism to impact force, improve control crumple
Path and the validity and accuracy for absorbing collision energy, and stock utilization is improved, while can reduce and be manufactured into again
This.
Further, 5 sections of the crumple zones 3 of the bindiny mechanism, fracture zone 4 and holding area can by magnesium, magnesium alloy, aluminium or
The die casting of the materials such as person's aluminium alloy is integrally formed.
In the above-described embodiment, in order to which the crumple zones is made to remain to remain intact after being impacted, so as to press
According to preset crumple path move, therefore as an alternative embodiment, the connection structure can also include reinforcing rib,
It is arranged on the connecting pin of the crumple zones and the body front wall region.The crumple zones can also be enhanced by other means
Intensity, such as increase the thickness of its wall thickness.
In the above-described embodiment, as shown in figure 4, the fracture zone 4 may include the first boss overlapped 41 and
Two boss 42, the cross-sectional area of the first boss 41 are less than the cross-sectional area of the second boss 42, and the first boss
The 41 connection crumple zones 3, the second boss 42 connects the holding area 5, so as to form the shape of step surface as shown in Figure 7
Formula.Since the cross-sectional area of the first boss 41 is less than the cross-sectional area of the second boss 42, can ensure described
Crumple zones 3 are when colliding generation, into the holding area 5.
In specific example, above-mentioned second boss 42 can be the platform of rectangular configuration.And in order to make the crumple zones 3
Enter in the holding area 5 according to the crumple direction of design, to enhance the guidance quality to the crumple zones 3, as shown in figure 5, institute
It states second boss 42 and may be set to be the prismatoid with gradient.
In specific example, for the purposes of the crumple zones 3 is made to enter the holding area 5 according to the crumple direction of design
In, to enhance the guidance quality to the crumple zones 3, in the second boss 42 can also be set as that weakening structure is distributed with.
The weakening structure is arranged on the step surface 421 of the fracture zone 4.When the crumple zones 3 are by the body front wall region 2
After being impacted, the fracture zone 4 can be made by the effect of shearing force and cracked along the reduction feature, it is described so as to enhance
The guidance quality in 3 crumple direction of crumple zones.The reduction feature can be provided in the area that 421 upper stress of step surface is concentrated
Domain.
As an alternative embodiment, the reduction feature can be through-hole.It is described weak with reference to shown in Fig. 6-Fig. 8
It can be circular hole 422, waist round hole 423 or square hole 424 or other irregularly-shaped holes to change structure.
As an alternative embodiment, the reduction feature can also be reduction slot, such as U slots, C-shaped channel.
As an alternative embodiment, as shown in figure 9, the reduction feature can also be through-hole and weaken the mixed of slot
Structure 425 is closed to be arranged.
The reduction form and the fracture mode of the fracture zone 4 being arranged on 4 step surface 421 of fracture zone can regard
The material property of 1 connection structure of fascia board girder, head-on crash for reduce occupant injury requirement, complete vehicle structure it is durable with
And vehicle vibration considers design with composite factors such as sound vibration roughness (Noise Vibration Harshness, NVH).
It is understood that above-mentioned example of the invention can be combined with each other under the premise of without prejudice to inventive concept,
Within it is all belonged to the scope of protection of the present invention.For example, the shape of the fracture zone and holding area connecting end surface can be set
For circle, so as to which the fracture zone be made to form two cylinders for being overlapped mutually combination.Simultaneously on the step surface of the fracture zone
Weakening structure is set.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (8)
1. a kind of fascia board girder is connect with body front wall region, which is characterized in that the connection knot with body front wall region
Structure includes：Crumple zones, fracture zone and holding area；
The crumple zones are connect with the body front wall region, suitable for receiving the impact transmitted via the body front wall region
Power；
The fracture zone is connect respectively with the crumple zones and the holding area, suitable for being received in the crumple zones via the vehicle
During the impact force that body front region transmits, it is broken；
The end face of the holding area and the fracture zone connecting pin is more than the end face of the crumple zones and the fracture zone connecting pin；
When the holding area is suitable for being broken in the fracture zone, the crumple zones are housed.
2. fascia board girder as described in claim 1, which is characterized in that the holding area is towards the fracture zone direction
Length be more than length of the crumple zones towards the fracture zone direction.
3. fascia board girder as described in claim 1, which is characterized in that the connection structure further includes reinforcing rib, if
Put the connecting pin in the crumple zones and the body front wall region.
4. fascia board girder as described in claim 1, which is characterized in that the fracture zone includes overlap first
Boss and second boss, the cross-sectional area of the first boss are less than the cross-sectional area of the second boss, and described first convex
Platform connects the crumple zones, and the second boss connects the holding area.
5. fascia board girder as claimed in claim 4, which is characterized in that reduction knot is distributed in the second boss
Structure.
6. fascia board girder as claimed in claim 5, which is characterized in that the weakening structure is through-hole.
7. fascia board girder as claimed in claim 5, which is characterized in that the weakening structure is reduction slot.
8. fascia board girder as described in claim 1, which is characterized in that the crumple zones, the fracture zone and institute
State holding area integrated molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377972.2A CN105313986B (en) | 2014-08-01 | 2014-08-01 | Fascia board girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377972.2A CN105313986B (en) | 2014-08-01 | 2014-08-01 | Fascia board girder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105313986A CN105313986A (en) | 2016-02-10 |
| CN105313986B true CN105313986B (en) | 2018-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410377972.2A Active CN105313986B (en) | 2014-08-01 | 2014-08-01 | Fascia board girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105313986B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691324B (en) * | 2016-03-24 | 2017-12-12 | 延锋彼欧汽车外饰系统有限公司 | A kind of mounting structure |
| CN106080799A (en) * | 2016-07-26 | 2016-11-09 | 浙江吉利控股集团有限公司 | A kind of dashboard cross member attachment structure and vehicle |
| CN112765788B (en) * | 2020-12-31 | 2023-02-21 | 成都航天模塑股份有限公司 | Plastic part collision fracture simulation analysis method and automobile instrument panel assembly structure optimization method |
| CN113635977B (en) * | 2021-08-30 | 2022-12-27 | 恒大新能源汽车投资控股集团有限公司 | Connecting mechanism and instrument board beam assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE325918B (en) * | 1968-10-22 | 1970-07-13 | Scharfenbergkupplung Gmbh | |
| EP0763448B1 (en) * | 1995-09-11 | 2000-06-07 | Hoogovens Staal B.V. | An energy absorbing unit |
| CN1842448A (en) * | 2003-08-26 | 2006-10-04 | 沙普公司 | Tubular energy management system for absorbing impact energy |
| CN101541623A (en) * | 2007-04-13 | 2009-09-23 | 佛吉亚汽车内部设备工业公司 | Crossbar for dashboard of automobile and corresponding automobile |
| CN102282034A (en) * | 2009-09-25 | 2011-12-14 | 丰田自动车株式会社 | Arrangement for mounting instrument reinforcement for a vehicle |
| CN102652082A (en) * | 2009-12-17 | 2012-08-29 | 罗伯特·博世有限公司 | Windshield wiper device |
-
2014
- 2014-08-01 CN CN201410377972.2A patent/CN105313986B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE325918B (en) * | 1968-10-22 | 1970-07-13 | Scharfenbergkupplung Gmbh | |
| EP0763448B1 (en) * | 1995-09-11 | 2000-06-07 | Hoogovens Staal B.V. | An energy absorbing unit |
| CN1842448A (en) * | 2003-08-26 | 2006-10-04 | 沙普公司 | Tubular energy management system for absorbing impact energy |
| CN101541623A (en) * | 2007-04-13 | 2009-09-23 | 佛吉亚汽车内部设备工业公司 | Crossbar for dashboard of automobile and corresponding automobile |
| CN102282034A (en) * | 2009-09-25 | 2011-12-14 | 丰田自动车株式会社 | Arrangement for mounting instrument reinforcement for a vehicle |
| CN102652082A (en) * | 2009-12-17 | 2012-08-29 | 罗伯特·博世有限公司 | Windshield wiper device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105313986A (en) | 2016-02-10 |
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