CN106864594A - Automobile longitudinal beam structure - Google Patents
Automobile longitudinal beam structure Download PDFInfo
- Publication number
- CN106864594A CN106864594A CN201710004347.7A CN201710004347A CN106864594A CN 106864594 A CN106864594 A CN 106864594A CN 201710004347 A CN201710004347 A CN 201710004347A CN 106864594 A CN106864594 A CN 106864594A
- Authority
- CN
- China
- Prior art keywords
- longitudinal beam
- longitudinal
- back segment
- longeron
- flex area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/157—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body for side impacts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
Abstract
The present invention proposes a kind of autobody stringpiece structure, including the front longitudinal extended along body of a motor car direction and the front wall crossbeam being connected between front longitudinal, the front longitudinal includes longitudinal beam front section and longeron back segment, longitudinal beam front section include first half with it is latter half of, the first half is welded to connect integrally with latter half of by way of laser assembly solder, longeron back segment one end is connected with front wall crossbeam, the other end is provided with a flex area and is connected with longitudinal beam front section, the length bearing of trend for extending perpendicularly to front longitudinal of the flex area.Automobile longitudinal beam structure of the invention, by in longeron back segment, one flex area is set, when a vehicle is in a collision, there is bending in the flex area of longeron back segment, the power for being converted into along the impact force major part of longeron bearing of trend along front wall crossbeam bearing of trend, the impact force of the left and right sides are carried out the counteracting that liquidates, effectively unloads impact force along front wall crossbeam, the bang path of energy can effectively be optimized, so as to improve the collision performance of vehicle.
Description
Technical field
The present invention relates to body of a motor car safeguard construction technical field, a kind of Automobile longitudinal beam structure is related in particular to.
Background technology
With the development of auto industry, customer also increasingly payes attention to the security performance of automobile, when collision scenario
It is required that body of a motor car there can be good energy-absorbing effect, the living space of driver and crew is ensured to greatest extent, and reduced as far as possible
The deformation of driver's cabin is most basic requirement.Front longitudinal is to ensure that automobile has the important component of good collision performance, and he passes through
Torsional deformation absorbs, decay impact energy, so that the injury to occupant is alleviated or avoided.Preferable longitudinal beam structure, it sends out in vehicle
During raw collision, longeron it is anterior will effective energy-absorbing, the deformation of longeron rear portion is smaller, and power is rearward passed to base plate or even entirely
Body frame, makes impact force disperse to absorb, so as to reduce the deformation of driver's cabin, it is ensured that the life security of human pilot.
Existing longitudinal beam structure, including stamping forming longitudinal beam front section, longeron stage casing and longeron back segment respectively, before the longeron
Section, longeron stage casing and longeron back segment are linked to be an entirety, and its material thickness progressive additive by the form of welding, before longeron
Section uses relatively thin sheet material for energy-absorbing area, and in collision process, impact force passes to front and rear floor by front longitudinal by threshold, or
Impact force is delivered to subframe by person by A posts.Although this structure can preferably absorb collision energy, due to increased
The thickness of longeron back segment, causes weight to increase and be unfavorable for lightweight, and impact force is merely able to can not be effective by deformation absorption
Unloading.
Impact force is effectively unloaded, can effectively optimize the bang path of energy, energy transfer efficiency is improved, so as to carry
The collision performance of vehicle high.
The content of the invention
In view of this, the present invention is directed to propose a kind of Automobile longitudinal beam structure, can effectively unload impact force, optimization collision
The bang path of energy, it is ensured that the invasion amount of front wall crossbeam, reduces the deformation of driver's cabin so as to ensure that the life of human pilot is pacified
Entirely.
The present invention provides a kind of Automobile longitudinal beam structure, including the front longitudinal that extends along body of a motor car direction and before being connected to
Front wall crossbeam between longeron, the front longitudinal includes longitudinal beam front section and longeron back segment, longitudinal beam front section include first half with it is latter half of,
The first half is welded to connect integrally with latter half of by way of laser assembly solder, and longeron back segment one end is connected with front wall crossbeam,
The other end is provided with a flex area and is connected with longitudinal beam front section, the length extension side for extending perpendicularly to front longitudinal of the flex area
To.
Further, the width of the flex area is 30mm-50mm.
Further, the thickness of the first half of the longitudinal beam front section is less than latter half of thickness, and thickness difference is 0.2mm.
Further, the thickness of the front wall crossbeam is 2.0mm-2.3mm.
Automobile longitudinal beam structure of the invention, a flex area is set by longeron back segment, when a vehicle is in a collision, vertical
There is bending in the flex area of beam back segment, being converted into along front wall crossbeam bearing of trend along the impact force major part of longeron bearing of trend
Power, the impact force of the left and right sides carries out the counteracting that liquidates, effectively unloads impact force along front wall crossbeam, can effectively optimize energy
The bang path of amount, it is ensured that the invasion amount of front wall crossbeam, reduces the deformation of driver's cabin so as to ensure the life security of human pilot.
Brief description of the drawings
Fig. 1 is the structural representation of Automobile longitudinal beam structure provided in an embodiment of the present invention.
Fig. 2 is the structural representation of chassis runner leading portion provided in an embodiment of the present invention.
Fig. 3 is the structural representation of chassis runner back segment provided in an embodiment of the present invention.
Fig. 4 is the collision schematic diagram of Automobile longitudinal beam structure provided in an embodiment of the present invention.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is used, below in conjunction with
Accompanying drawing and preferred embodiment, to specific embodiment of the invention, structure, feature and its effect, describe in detail as after.
As shown in Figures 1 to 4, a kind of Automobile longitudinal beam structure, including along body of a motor car direction extend front longitudinal 10 and
The front wall crossbeam 20 between front longitudinal 10 is connected to, the front longitudinal 10 includes longitudinal beam front section 11 and is connected with the longitudinal beam front section 11
Longeron back segment 12.It is specific as shown in Fig. 2 longitudinal beam front section 11 includes first half 111 and latter half of 112, the first half 111 with it is rear
Half portion 112 is welded to connect integrally by way of laser assembly solder.The one end of longeron back segment 12 is connected with front wall crossbeam 20, the other end
It is provided with a flex area 121 and is connected with longitudinal beam front section 11, the length for extending perpendicularly to front longitudinal 10 of the flex area 121 is prolonged
Stretch direction.
In the present embodiment, the longeron back segment 12 uses thermoforming material, it is ensured that it has enough intensity, while in collision
During can effectively unload impact force.When vehicle collides, front longitudinal 10 is rolled at the flex area 121
Curved, the bending of longeron back segment 12 can reach the effect of crumple energy-absorbing, and the energy that front longitudinal 10 is transmitted by flex area 121
After local collision energy effectively can be assigned to front wall crossbeam 20, carry out the counteracting that liquidates.
Preferably, the width of the flex area 121 be 30mm-50mm between, the thickness of the first half 111 of the longitudinal beam front section 11
Thickness less than latter half of 112, both thickness differences are 0.2mm in the present embodiment, and this latter half of 112 has enough intensity
To the effect for supporting and transmitting collision energy.
Meanwhile, in order to ensure that front wall crossbeam 20 has enough intensity, the thickness of the front wall crossbeam 20 is 2.0mm-2.3mm
Between.In the present embodiment, the thickness of the front wall crossbeam is 2.0mm, it is ensured that it does not occur bending in collision process, makes it have
Enough intensity plays the elimination of impact force.Specifically as shown in figure 4, when vehicle occurs head-on crash, front longitudinal 10 is in longeron
There is bending deformation at the flex area 121 of back segment 12, can the impact force along the bearing of trend of front longitudinal 10 (x directions) is most of
The power along the bearing of trend of front wall crossbeam 20 (Y-direction) is converted into, the impact force that left-right longeron is transformed into front wall crossbeam 20 is liquidated
Offset, remaining impact force continues to be delivered in body structure below by longeron.
Traditional longeron back segment is to ensure enough intensity, is typically designed that longeron section is thicker, weight is larger, it is to avoid longeron
Deform.For traditional longeron, longeron back segment 12 of the invention forms a bending by the distribution of soft or hard material
Area 121, in turn ensure that the performance of longeron while effectively reducing weight.
Automobile longitudinal beam structure of the invention, sets a flex area 121, when vehicle collides by longeron back segment 12
When, there is bending in flex area 121 in longeron back segment 12, being converted into edge along the impact force major part of the bearing of trend of front longitudinal 10
The power of the bearing of trend of front wall crossbeam 20, the impact force of the left and right sides carries out the counteracting that liquidates along front wall crossbeam 20, and effectively unloading is touched
Hit power, can effectively optimize the bang path of energy, it is ensured that the invasion amount of front wall crossbeam 20, reduce driver's cabin deformation so as to
Ensure the life security of human pilot.
Apply specific case herein to be set forth Automobile longitudinal beam structure of the invention and embodiment, above embodiment party
The explanation of formula is only intended to help and understands the method for the present invention and its core concept；Simultaneously for the general technology people of this area
Member, according to thought of the invention, will change, to sum up, in this specification on specific embodiment and its range of application
Appearance be should not be construed as limiting the invention, and protection scope of the present invention should be defined by appended claim.
Claims (4)
1. a kind of Automobile longitudinal beam structure, including the front longitudinal that extends along body of a motor car direction and before being connected between front longitudinal
Enclose crossbeam, it is characterised in that：The front longitudinal includes longitudinal beam front section and longeron back segment, the longitudinal beam front section include first half with it is rear
Half portion, the first half is welded to connect integral, described longeron back segment one end and institute with latter half of by way of laser assembly solder
The connection of front wall crossbeam is stated, the other end is provided with a flex area and is connected with the longitudinal beam front section, the bearing of trend of the flex area hangs down
Directly in the length bearing of trend of the front longitudinal.
2. Automobile longitudinal beam structure as claimed in claim 1, it is characterised in that：The width of the flex area is 30mm-50mm.
3. Automobile longitudinal beam structure as claimed in claim 2, it is characterised in that：The thickness of the first half of the longitudinal beam front section is less than
Latter half of thickness, thickness difference is 0.2mm.
4. Automobile longitudinal beam structure as claimed in claim 3, it is characterised in that：The thickness of the front wall crossbeam is 2.0mm-
2.3mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004347.7A CN106864594A (en) | 2017-01-04 | 2017-01-04 | Automobile longitudinal beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004347.7A CN106864594A (en) | 2017-01-04 | 2017-01-04 | Automobile longitudinal beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106864594A true CN106864594A (en) | 2017-06-20 |
Family
ID=59164599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710004347.7A Pending CN106864594A (en) | 2017-01-04 | 2017-01-04 | Automobile longitudinal beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106864594A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758562A (en) * | 2019-11-11 | 2020-02-07 | 吴春涛 | Platform automobile body structure and have its platform vehicle |
| CN112074451A (en) * | 2018-05-03 | 2020-12-11 | 标致雪铁龙汽车股份有限公司 | Vehicle structure with reinforced longitudinal beam |
| CN112550463A (en) * | 2020-12-15 | 2021-03-26 | 浙江吉利控股集团有限公司 | Vehicle body structure and automobile |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11348824A (en) * | 1998-06-05 | 1999-12-21 | Nissan Motor Co Ltd | Vehicle body structure for automobile |
| CN101450682A (en) * | 2008-12-22 | 2009-06-10 | 奇瑞汽车股份有限公司 | Buffering energy-absorbing structure for automobile front collision |
| JP2009227120A (en) * | 2008-03-24 | 2009-10-08 | Fuji Heavy Ind Ltd | Vehicle body front part structure |
| CN201347127Y (en) * | 2008-12-25 | 2009-11-18 | 重庆长安汽车股份有限公司 | Segmented butt-welding type automobile front longitudinal beam |
| CN102390434A (en) * | 2011-10-19 | 2012-03-28 | 湖南大学 | Front longitudinal beam structure for automobiles |
| CN103786791A (en) * | 2014-01-22 | 2014-05-14 | 奇瑞汽车股份有限公司 | Integrated car front longitudinal beam |
| CN203623776U (en) * | 2013-10-28 | 2014-06-04 | 长城汽车股份有限公司 | Frame longitudinal beam structure and automobile frame |
| CN205075895U (en) * | 2015-11-02 | 2016-03-09 | 郑州比克新能源汽车有限公司 | Electric automobile's lightweight body structure |
-
2017
- 2017-01-04 CN CN201710004347.7A patent/CN106864594A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11348824A (en) * | 1998-06-05 | 1999-12-21 | Nissan Motor Co Ltd | Vehicle body structure for automobile |
| JP2009227120A (en) * | 2008-03-24 | 2009-10-08 | Fuji Heavy Ind Ltd | Vehicle body front part structure |
| CN101450682A (en) * | 2008-12-22 | 2009-06-10 | 奇瑞汽车股份有限公司 | Buffering energy-absorbing structure for automobile front collision |
| CN201347127Y (en) * | 2008-12-25 | 2009-11-18 | 重庆长安汽车股份有限公司 | Segmented butt-welding type automobile front longitudinal beam |
| CN102390434A (en) * | 2011-10-19 | 2012-03-28 | 湖南大学 | Front longitudinal beam structure for automobiles |
| CN203623776U (en) * | 2013-10-28 | 2014-06-04 | 长城汽车股份有限公司 | Frame longitudinal beam structure and automobile frame |
| CN103786791A (en) * | 2014-01-22 | 2014-05-14 | 奇瑞汽车股份有限公司 | Integrated car front longitudinal beam |
| CN205075895U (en) * | 2015-11-02 | 2016-03-09 | 郑州比克新能源汽车有限公司 | Electric automobile's lightweight body structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112074451A (en) * | 2018-05-03 | 2020-12-11 | 标致雪铁龙汽车股份有限公司 | Vehicle structure with reinforced longitudinal beam |
| CN110758562A (en) * | 2019-11-11 | 2020-02-07 | 吴春涛 | Platform automobile body structure and have its platform vehicle |
| CN110758562B (en) * | 2019-11-11 | 2024-02-23 | 吴春涛 | Platform car body structure and platform car with same |
| CN112550463A (en) * | 2020-12-15 | 2021-03-26 | 浙江吉利控股集团有限公司 | Vehicle body structure and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |