CN109353253A - Rear transverse beam of front seat Lightened structure - Google Patents
Rear transverse beam of front seat Lightened structure Download PDFInfo
- Publication number
- CN109353253A CN109353253A CN201711306947.5A CN201711306947A CN109353253A CN 109353253 A CN109353253 A CN 109353253A CN 201711306947 A CN201711306947 A CN 201711306947A CN 109353253 A CN109353253 A CN 109353253A
- Authority
- CN
- China
- Prior art keywords
- transverse beam
- rear transverse
- front seat
- front chair
- mounting bracket
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910000679 solder Inorganic materials 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000013585 weight reducing agent Substances 0.000 abstract description 2
- 208000020442 loss of weight Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000000649 photocoagulation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to a kind of rear transverse beam of front seat Lightened structures, belong to the technical field of Automobile Design and manufacture.Mounting bracket after rear transverse beam of front seat Lightened structure of the invention, including rear transverse beam of front seat, front chair side, in front chair after install in nutplate and front chair behind mounting bracket, front chair side after nutplate is installed；Nutplate stitch bonds are installed behind the front side of mounting bracket and front chair side behind front chair side, then with rear transverse beam of front seat solder bond；In front chair after mounting bracket front side and front chair in after install nutplate stitch bonds, then with rear transverse beam of front seat solder bond.Lightened structure of the invention is simple, part can use unimach sheet metal forming, rear transverse beam of front seat is in collision process without apparent deformation and crumple, effectively guarantee the collision safety of occupant, it can be used for all cars, SUV, MPV vehicle, it can not only realize structural weight reduction and can guarantee white body basic performance, cost does not also increase.
Description
Technical field
The present invention relates to the technical fields of Automobile Design and manufacture, it is more particularly related to after a kind of front chair
Crossbeam Lightened structure.
Background technique
In the prior art, the common front-row seats crossbeam form of automobile is generally saddle-shaped configuration, intermediate sinking position
Consider the foot well of rear passenger, Seat-fixed point position increases nutplate, carries out reinforcement to front-row seats installation point, is promoted
Intensity and dynamic stiffness.In the prior art, rear transverse beam of front seat usually expects that thickness is 1.5mm, material B280VK；Nut plate is installed
Thickness is 1.5mm, material DC01；Rear transverse beam of front seat is saddle-shaped configuration, carries out punch forming ratio using higher intensity steel plate
More difficult, i.e., enabled molding flange springback capacity is also bigger, is unsatisfactory for the structural requirement of part, passes through the scheme of material reducing thickness loss of weight
It can not implement.Rear transverse beam of front seat passes through border turnup structure and channel in preceding floor, B column inner panel, side threshold internal plate and preceding
Floor welded, matching precision requirement is relatively high, and the matching and debugging period that is welded is relatively long or even rear transverse beam of front seat mold also needs
Flange tolerance is adjusted repeatedly, mold, cubing cost can also rise.
Summary of the invention
In order to solve above-mentioned technical problem in the prior art, the purpose of the present invention is to provide a kind of rear transverse beam of front seat
Lightened structure.
A kind of rear transverse beam of front seat Lightened structure, it is characterised in that: including installing branch behind rear transverse beam of front seat, front chair side
Nutplate is installed after being installed in nutplate and front chair behind mounting bracket, front chair side after in frame, front chair；The front chair side
Nutplate solder bond is installed behind the front side of mounting bracket and front chair side afterwards, then with rear transverse beam of front seat solder bond；Institute
After stating in front chair nutplate solder bond is installed in the front side of mounting bracket and front chair afterwards, is then welded with rear transverse beam of front seat
Binding is closed.
Wherein, the rear transverse beam of front seat is zigzag shape crossbeam, behind the front chair side in mounting bracket and front chair
Mounting bracket is cell type part afterwards.
Wherein, the rear transverse beam of front seat is process using ultrafort steel, and the material thickness of the rear transverse beam of front seat is
1.0mm；Behind the front chair side in mounting bracket and front chair after mounting bracket be process using cold-rolled biphase steel, and
Behind the front chair side in mounting bracket and front chair after the material thickness of mounting bracket be 1.5mm.
Wherein, tensile strength >=780MPa of the super-high strength steel；Yield strength≤400MPa of the cold-rolled biphase steel,
And >=350MPa, impact test show just to can guarantee in collision process when the yield strength of mounting bracket steel is greater than 350MPa
Do not occur significantly to deform and guarantee that rear transverse beam of front seat does not shift.
Wherein, installation nutplate is bending member after installing in nutplate and front chair behind the front chair side, and it is thick
Degree is 1.2mm.
Rear transverse beam of front seat Lightened structure of the present invention has the advantages that
Rear transverse beam of front seat of the invention is without saddle-shaped configuration, substantially prismatic zigzag shape crossbeam, only in lead to
There is welded flange side in road side, and structure is simple, and part can use unimach sheet metal forming, and material thickness can be kept to from 1.5mm
1.0mm.Through CAE simulation analysis and real vehicle collision test, rear transverse beam of front seat after lightweight in collision process without deformation and
Crumple effectively guarantees the collision safety of occupant.
Detailed description of the invention
Fig. 1 is the configuration schematic diagram of the rear transverse beam of front seat Lightened structure of embodiment 1.
Fig. 2 is the structural schematic diagram with body platform assembly of the rear transverse beam of front seat Lightened structure of embodiment 1.
Fig. 3 is the cross section structure schematic diagram in Fig. 2 along the direction A-A.
Meaning represented by each appended drawing reference is respectively as follows: 1- rear transverse beam of front seat in figure, mounting bracket behind 2- front chair side,
Nut is installed behind 3- front chair side, in 4- front chair after mounting bracket, in 5- front chair after nutplate is installed.
Specific embodiment
Rear transverse beam of front seat Lightened structure of the present invention is further elaborated below with reference to specific embodiment,
To help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the invention, technical solution.
Embodiment 1
As shown in Figure 1, after the rear transverse beam of front seat Lightened structure of the present embodiment, including rear transverse beam of front seat 1, front chair side
Nutplate 5 is installed after being installed in nutplate 3 and front chair behind mounting bracket 4, front chair side after in mounting bracket 2, front chair.Institute
It states and nutplate stitch bonds is installed behind the front side and front chair side of mounting bracket behind front chair side, then welded with rear transverse beam of front seat
Binding is closed；In the front chair after mounting bracket front side and front chair in after install nutplate stitch bonds, then with front stall
Chair rear cross beam welding combines.The rear transverse beam of front seat be zigzag shape crossbeam, be process using super-high strength steel and with a thickness of
1.0mm.Mounting bracket is cell type part behind the front chair side, is process using cold-rolled biphase steel and it is with a thickness of 1.5mm.
Mounting bracket is cell type part after in the front chair, is process using cold-rolled biphase steel and it is with a thickness of 1.5mm.Before described
It is bending member that nutplate is installed behind seat side, and it is with a thickness of 1.2mm.Installation nutplate is bending after in the front chair
Part, and it is with a thickness of 1.2mm.Preferably, the cold-rolled biphase steel is HC340/590 steel, and its elongation at break
Greater than 22%.The super-high strength steel is HC420/780 steel, and its yield strength is 450~590MPa.Behind the front chair side
Mounting bracket is combined with rear transverse beam of front seat by spot welding, and rear mounting bracket passes through with rear transverse beam of front seat in the front chair
Spot welding combines.The laser welding uses copper alloy solder, and the copper alloy solder is by Ni, 1.75wt% of 15wt%
Si, 0.2wt% B, 5.0wt% Mn and surplus Cu composition, the copper alloy weld tabs have good ductility, can be processed
It is only the copper alloy weld tabs of 0.1~0.2mm at thickness, the introducing of Si and B are conducive to the wetability of laser welding and the paving of weld tabs
Exhibition ability, for the laser facula power that laser welding uses for 1~5 × 105W/cm2, hot spot is directly 0.3mm, is swashed using above-mentioned
Photocoagulation technique can make strength of joint reach the intensity of base material, and shear strength is greater than 280MPa, it can be ensured that installation
Bracket and rear transverse beam of front seat are not distorted deformation and apparent crumple in collision.
The structure of the present embodiment ensure that the rigidity and intensity requirement of rear transverse beam of front seat, using ultra-high strength steel plate, reduce
Punch forming difficulty realizes material reducing thickness loss of weight, and can be adjusted by welding structure, optimizes the matching precision of part, shortens
Be welded debugging cycle, and then the control of cost of implementation.When assembling with body platform, as shown in Figures 2 and 3, front chair is pacified behind side
The left side of bracket 2 and inner panel under B column, front row coiler stiffening plate spot welding (3 laminates are connect) are filled, is also likely to be for certain vehicles
With stiffening plate spot welding in threshold internal plate and threshold (3 laminates are connect).Rear transverse beam of front seat 1 and preceding floor, preceding floor lower beam point
It welds (connection of 3 laminates), middle channel, the middle channel stiffening plate of rear mounting bracket and floor in end view drawing front chair as shown in Figure 3
Spot welding (2 laminates or the connection of 3 laminates).
The rear transverse beam of front seat of the present embodiment leads in without saddle-shaped configuration, substantially prismatic zigzag shape crossbeam
There is welded flange side in road side, and structure is simple, and part can use unimach sheet metal forming, and material thickness can be kept to from 1.5mm
1.0mm.22 solder joints are increased compared to background technique after bulk-breaking, for the connection of bracket and crossbeam and the self-brazing of bracket
It connects, fixture increases by 1 set, the welding Set and Positioning for bracket and crossbeam；But the structure after bulk-breaking fully considers the tolerance of vehicle body
Design reduces trial-production welding entrucking and mold, cubing conducive to the matching precision of crossbeam assembly and threshold internal plate, middle channel
The adjustment duty cycle.Two sides seat mounting bracket material uses ultra-high strength steel plate, is designed to that, from weldment cell type part, part is rigid
Degree is higher, and molding is simple, and piece supplying is at low cost；It is horizontal after the front chair after lightweight by CAE simulation analysis and real vehicle collision test
Beam, without apparent deformation and crumple, effectively guarantees the collision safety of occupant in collision process；It is preceding by CAE simulation analysis
The plastic strain of Seat-fixed point only has 0.09%, the empirical value much smaller than 1%, and the installation point intensity of front chair meets regulation and wants
It asks；Unilateral loss of weight about 0.4kg compared with the prior art, vehicle loss of weight is up to 0.8kg.The rear transverse beam of front seat of the present embodiment is available
In all cars, SUV, MPV vehicle, it can not only realize structural weight reduction and can guarantee white body basic performance, cost does not also increase
Add.
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention,
Obviously the present invention specific implementation is not subject to the restrictions described above, as long as use the inventive concept and technical scheme of the present invention into
The improvement of capable various unsubstantialities, or not improved the conception and technical scheme of the invention are directly applied to other occasions
, it is within the scope of the present invention.
Claims (10)
1. a kind of rear transverse beam of front seat Lightened structure, it is characterised in that: including installing branch behind rear transverse beam of front seat, front chair side
Nutplate is installed after being installed in nutplate and front chair behind mounting bracket, front chair side after in frame, front chair；The front chair side
Nutplate solder bond is installed behind the front side of mounting bracket and front chair side afterwards, then with rear transverse beam of front seat solder bond；Institute
After stating in front chair nutplate solder bond is installed in the front side of mounting bracket and front chair afterwards, is then welded with rear transverse beam of front seat
Binding is closed.
2. rear transverse beam of front seat Lightened structure according to claim 1, it is characterised in that: the rear transverse beam of front seat is several
Cross-beam of character form, behind the front chair side in mounting bracket and front chair after mounting bracket be cell type part.
3. rear transverse beam of front seat Lightened structure according to claim 1, it is characterised in that: the rear transverse beam of front seat uses
Super-high strength steel is process, and the material thickness of the rear transverse beam of front seat is 1.0mm；Behind the front chair side mounting bracket and
Mounting bracket is process using cold-rolled biphase steel after in front chair, and mounting bracket and front chair behind the front chair side
In after mounting bracket material thickness be 1.5mm.
4. rear transverse beam of front seat Lightened structure according to claim 3, it is characterised in that: the tension of the super-high strength steel is strong
Degree >=780MPa；Yield strength≤400MPa of the cold-rolled biphase steel, and >=350MPa.
5. rear transverse beam of front seat Lightened structure according to claim 1, it is characterised in that: install spiral shell behind the front chair side
Installation nutplate is bending member after in motherboard and front chair, and it is with a thickness of 1.2mm.
6. rear transverse beam of front seat Lightened structure according to claim 3, it is characterised in that: install spiral shell behind the front chair side
Installation nutplate is process using cold-rolled biphase steel after in motherboard and front chair.
7. rear transverse beam of front seat Lightened structure according to claim 6, it is characterised in that: the cold-rolled biphase steel is
HC340/590 steel, and its elongation at break is greater than 22%.
8. rear transverse beam of front seat Lightened structure according to claim 3, it is characterised in that: the super-high strength steel is HC420/
780 steel, and its yield strength is 450~590MPa.
9. rear transverse beam of front seat Lightened structure according to claim 3, it is characterised in that: install branch behind the front chair side
Frame is combined with rear transverse beam of front seat by spot welding, and rear mounting bracket and rear transverse beam of front seat pass through spot welding in the front chair
In conjunction with.
10. rear transverse beam of front seat Lightened structure according to claim 9, it is characterised in that: the laser point welding uses
With a thickness of the copper alloy weld tabs of 0.1~0.2mm, and the chemical composition of the copper alloy weld tabs be 15wt% Ni,
The Mn of B, 5.0wt% of Si, 0.2wt% of 1.75wt% and the Cu of surplus；The laser facula power that laser welding uses is 1
~5 × 105W/cm2, hot spot are directly 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306947.5A CN109353253B (en) | 2017-12-08 | 2017-12-08 | Front seat rear cross beam weight-reducing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306947.5A CN109353253B (en) | 2017-12-08 | 2017-12-08 | Front seat rear cross beam weight-reducing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109353253A true CN109353253A (en) | 2019-02-19 |
| CN109353253B CN109353253B (en) | 2024-07-30 |
Family
ID=65349783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711306947.5A Active CN109353253B (en) | 2017-12-08 | 2017-12-08 | Front seat rear cross beam weight-reducing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109353253B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023241384A1 (en) * | 2022-06-16 | 2023-12-21 | 浙江吉利控股集团有限公司 | Vehicle seat securing apparatus and automobile |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201325486Y (en) * | 2008-11-27 | 2009-10-14 | 奇瑞汽车股份有限公司 | Front seat installation rear beam structure |
| CN203623409U (en) * | 2013-12-23 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Installing support structure for front seats of car |
| CN103895535A (en) * | 2012-12-27 | 2014-07-02 | 重庆长安汽车股份有限公司 | Back installation beam assembly of front row seat of car |
| KR20150019047A (en) * | 2013-08-12 | 2015-02-25 | 주식회사 성우하이텍 | Seat cross member unit for vehicles |
| DE202015106574U1 (en) * | 2015-12-02 | 2016-01-04 | Ford Global Technologies, Llc | Vehicle body structure |
| CN206384047U (en) * | 2016-10-27 | 2017-08-08 | 神龙汽车有限公司 | Automobile front seat crossbeam assembly structure |
| CN207711853U (en) * | 2017-12-08 | 2018-08-10 | 阿尔特汽车技术股份有限公司 | Rear transverse beam of front seat Lightened structure |
-
2017
- 2017-12-08 CN CN201711306947.5A patent/CN109353253B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201325486Y (en) * | 2008-11-27 | 2009-10-14 | 奇瑞汽车股份有限公司 | Front seat installation rear beam structure |
| CN103895535A (en) * | 2012-12-27 | 2014-07-02 | 重庆长安汽车股份有限公司 | Back installation beam assembly of front row seat of car |
| KR20150019047A (en) * | 2013-08-12 | 2015-02-25 | 주식회사 성우하이텍 | Seat cross member unit for vehicles |
| CN203623409U (en) * | 2013-12-23 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Installing support structure for front seats of car |
| DE202015106574U1 (en) * | 2015-12-02 | 2016-01-04 | Ford Global Technologies, Llc | Vehicle body structure |
| CN206384047U (en) * | 2016-10-27 | 2017-08-08 | 神龙汽车有限公司 | Automobile front seat crossbeam assembly structure |
| CN207711853U (en) * | 2017-12-08 | 2018-08-10 | 阿尔特汽车技术股份有限公司 | Rear transverse beam of front seat Lightened structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023241384A1 (en) * | 2022-06-16 | 2023-12-21 | 浙江吉利控股集团有限公司 | Vehicle seat securing apparatus and automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109353253B (en) | 2024-07-30 |
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