CN208947414U - Vehicle body rear longitudinal beam structure - Google Patents
Vehicle body rear longitudinal beam structure Download PDFInfo
- Publication number
- CN208947414U CN208947414U CN201821716456.8U CN201821716456U CN208947414U CN 208947414 U CN208947414 U CN 208947414U CN 201821716456 U CN201821716456 U CN 201821716456U CN 208947414 U CN208947414 U CN 208947414U
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- CN
- China
- Prior art keywords
- longitudinal beam
- main body
- sealing plate
- stringer
- vehicle body
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- 238000007789 sealing Methods 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000013016 damping Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000037396 body weight Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to the technical fields of automobile, disclose a kind of vehicle body rear longitudinal beam structure, including stringer main body and the stringer sealing plate to match with stringer main body, stringer sealing plate and stringer main body overlap and form cavity body structure between, the upper end of stringer sealing plate upwardly extends and protrudes from the upper end of stringer main body, to form the extension for connecting with upper body.In this way, when upper and lower car body is merged, it is connect by the extension of stringer sealing plate with upper body spot welding, guarantee that the tie point being merged is steel spot welding, upper body and back longitudinal beam structure and conventional steel vehicle body when being merged is enabled to share a production line, it is transformed without butt welding tongs and production line, reduces equipment investment cost.
Description
Technical field
The utility model relates to the technical fields of automobile, more particularly to a kind of vehicle body rear longitudinal beam structure.
Background technique
It is higher and higher to body performance requirement with the continuous development of new-energy automobile technology, it should realize automobile
Lightweight, again improve vehicle body rigidity with realize higher NVH (noise, vibration and sound vibration roughness, i.e. Noise,
The english abbreviation of Vibration, Harshness) performance and security performance.
Automobile rear longitudinal girder structure is the chief component of vehicle body, therefore higher to the Structural strength calls of floor side member, from
And can be reduced deflection of the floor side member in collision process, protection automobile power cell is not under compression, and prevents battery catches fire, in turn
Automobile rear-collision performance is improved, existing automobile rear longitudinal girder generally uses punching press sheet metal component to be made, and punching press sheet metal component is more heavy,
It is difficult to meet Hyundai Motor light-weight design demand, and longitudinal beam structure made of the non-steel materials such as aluminium alloy is used to get on or off the bus
When body is merged, the back longitudinal beam structure of steel upper body and non-steel is generally used and is spirally connected and self-piercing riveting (Self-piercing
Rivet, abbreviation SPR) connection type.However, traditional steel body is spot welded generally by steel, and use be spirally connected and
SPR can not share a production line with conventional steel vehicle body when being merged upper body and floor side member, need butt welding tongs and production line
It is transformed, equipment investment cost is higher.
Utility model content
The purpose of the utility model is to provide a kind of vehicle body rear longitudinal beam structure, can when upper and lower car body is merged with traditional vehicle
Sharing production line reduces equipment investment.
To solve the above-mentioned problems, the utility model provides a kind of vehicle body rear longitudinal beam structure, including stringer main body and with
The stringer sealing plate that the stringer main body matches, the stringer sealing plate and the stringer main body overlap and form chamber between
Body structure, and the upper end of the stringer sealing plate upwardly extends and protrudes from the upper end of the stringer main body to form an extension.
Further, the material of the stringer main body is aluminium alloy, and the material of the stringer sealing plate is steel.
Further, the stringer sealing plate is arranged to the stringer main body curves.
Further, the stringer main body includes the groove body being open towards the stringer sealing plate, the upper wall portions of the groove body
Equipped with upper overturning, the lower wall portion of the groove body is equipped with lower flange, and the lower flange is connected to the lower end of the stringer sealing plate, described
Upper overturning is connected to the upper end of the stringer sealing plate, and the extension protrudes from the upper overturning.
Further, reinforcing rib is equipped in the groove body, the reinforcing rib is in net along the length direction of the stringer main body
Trellis distribution.
Further, the lower wall portion of the groove body is equipped with the first mounting portion for installation chassis torsion-beam.
Further, first mounting portion includes multiple threaded connection holes, is equipped in the groove body and connects with the screw thread
The corresponding intensive aspect in hole is connect, the threaded connection hole runs through the intensive aspect.
Further, the lower wall portion of the groove body is additionally provided with the second mounting portion for installing damping spring, and described second
Mounting portion is equipped with the position limiting structure for limiting the damping spring compression travel.
Further, the side wall of the groove body is equipped with the overlap edge for connecting with floor, and the overlap edge is described in
The length direction of stringer main body is arranged.
Further, the side wall of the groove body is additionally provided with the mounting groove for installing crossbeam, and the mounting groove includes and cross
First connection edge of beam connection and the second connection edge, and second connection edge protrudes from first connection edge.
The utility model provides a kind of vehicle body rear longitudinal beam structure, matches including stringer main body and with stringer main body vertical
Beam sealing plate, stringer sealing plate and stringer main body overlap and form cavity body structure between, to improve the structure of back longitudinal beam structure
Intensity guarantees the collision performance of vehicle body, and the upper end of stringer sealing plate upwardly extends and protrude from the upper end of stringer main body, to form use
In the extension being connect with upper body.In this way, extension and upper body spot welding when upper and lower car body is merged, through stringer sealing plate
Connection guarantees that the tie point being merged is steel spot welding, enables upper body and back longitudinal beam structure and conventional steel vehicle body when being merged total
It with a production line, is transformed without butt welding tongs and production line, reduces equipment investment cost.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of vehicle body rear longitudinal beam structure in the utility model embodiment；
Fig. 2 is the backsight structural representation of vehicle body rear longitudinal beam structure in the utility model embodiment；
Fig. 3 is the assembling structure schematic diagram of vehicle body rear longitudinal beam structure and rear wheel cover in the utility model embodiment；
Fig. 4 is the structural schematic diagram of stringer main body in the utility model embodiment；
Fig. 5 is the assembling structure schematic diagram of stringer main body and chassis torsion-beam in the utility model embodiment；
Fig. 6 be in Fig. 5 A-A to diagrammatic cross-section；
Fig. 7 is the structural schematic diagram of chassis torsion-beam in the utility model embodiment；
Fig. 8 is B-B direction diagrammatic cross-section in Fig. 7；
Fig. 9 is the assembling schematic diagram of vehicle body rear longitudinal beam structure and crossbeam in the utility model embodiment.
In figure, 10, stringer main body；100, groove body；101, upper overturning；102, lower flange；103, reinforcing rib；104, the first peace
Dress portion；105, threaded connection hole；106, intensive aspect；107, the second mounting portion；108, position limiting structure；109, overlap edge；110, pacify
Tankage；110a, the first connection edge；110b, the second connection edge；20, stringer sealing plate；201, extension；30, rear wheel cover；40,
Chassis torsion-beam；401, torsion-beam bracket；402, mounting hole；50, damping spring；60, crossbeam.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.
In conjunction with shown in Fig. 1~9, a kind of vehicle body rear longitudinal beam structure of the utility model embodiment is schematically showed, wrap
The stringer sealing plate 20 for including stringer main body 10 and matching with stringer main body 10, stringer sealing plate 20 and stringer main body 10 overlap and
Therebetween cavity body structure is formed, the structural strength of the back longitudinal beam structure is high, is able to satisfy the collision performance of vehicle body, stringer sealing plate 20
Upper end upwardly extend and protrude from the upper end of stringer main body 10 to form an extension 201, which is used for and gets on the bus
Body connection.In this way, being connect by the extension 201 of stringer sealing plate 20 with upper body when upper and lower car body is merged, can guarantee and be merged
Tie point be steel spot welding, and make when vehicle body is merged, upper body and back longitudinal beam structure can share one with conventional steel vehicle body
Production line, is transformed without butt welding tongs and production line, reduces equipment investment cost.
For the requirement for meeting automotive light weight technology, generally, stringer main body 10 is by the casting integrated molding of aluminium alloy high pressure, stringer
Sealing plate 20 is formed by steel plate punched, and stringer main body 10 or other light materials are made to realize that body lightening designs,
It is not specifically limited herein.Since upper body is steel, and longitudinal beam structure is non-steel, such as aluminum alloy material, in upper and lower car body
It when being merged, is connect by the extension 201 of stringer sealing plate 20 with upper body, can guarantee that the tie point being merged is steel spot welding, aluminium closes
Golden stringer main body 10 and the stringer sealing plate 20 of steel pass through SPR riveting, and the back longitudinal beam structure is simple, and structural strength is high,
It is able to satisfy the collision performance of vehicle body, while can effectively reduce car body weight.Wherein, stringer sealing plate 20 is set to the bending of stringer main body 10
It sets, to improve the structural strength of back longitudinal beam structure, reduces deformation or conquassation that back longitudinal beam structure generates in an impact.
Further, stringer main body 10 includes groove body 100 of the opening towards stringer sealing plate 20, and the upper wall portions of groove body 100 are set
There is upper overturning 101, the lower wall portion of groove body 100 is equipped with lower flange 102, and the lower end of stringer sealing plate 20 is connected in lower flange 102, is indulged
The upper end of beam sealing plate 20 is connected on upper overturning 101, and extension 201 protrudes from upper overturning 101 in order to weld with upper body
Connection.Preferably, the riveting point of stringer main body 10 and stringer sealing plate 20 is arranged on upper overturning 101 and lower flange 102, by upper
Flange 101 and lower flange 102 and 20 riveting of stringer sealing plate reduce constructive interference, guarantee the stability of connection.This implementation
In example, in order to guarantee the structural strength of back longitudinal beam structure and improve the dynamic stiffness of chassis torsion-beam 40, it is equipped in groove body along vertical
The reinforcing rib 103 of the length direction arrangement of beam body, reinforcing rib 103 distribute as net shape, reinforcing rib 103 and floor side member main body 10
Integrally casting shaping both can be reduced back longitudinal beam structure and deform in an impact, power battery is avoided to be extruded, and can also improve NVH
Performance.
In conjunction with shown in Fig. 5~8, chassis torsion-beam 40 is mounted on back longitudinal beam structure, to improve the control stability of vehicle,
Chassis torsion-beam 40 is equipped with torsion-beam bracket 401, and torsion-beam bracket 401 is connect with back longitudinal beam structure, and torsion-beam bracket 401 is equipped with multiple peaces
Fill hole 402.In the present embodiment, the first peace for installation chassis torsion-beam 40 is equipped in 100 lower wall portion of groove body of stringer main body 10
Dress portion 104, the torsion-beam bracket 401 of chassis torsion-beam 40 are mounted on the first mounting portion 104；Further, the first mounting portion 104 wraps
Multiple threaded connection holes 105 are included, threaded connection hole 105 is corresponding with the mounting hole 402 on 40 bracket of chassis torsion-beam, chassis torsion-beam 40
The threaded connection hole 105 passed through on the mounting hole 402 and the first mounting portion 104 of torsion-beam bracket 401 by bolt is connected and fixed,
Intensive aspect 106 corresponding with threaded connection hole 105 is additionally provided in groove body 100, intensive aspect 106 and stringer main body 10 are integrally formed,
Threaded connection hole 105 runs through intensive aspect 106, by being equipped with intensive aspect 106 in threaded connection place, to guarantee the structure of junction
Intensity avoids vehicle from occurring the situation for fractureing or being crushed in collision process.Preferably, intensive aspect 106 is cylindrical body, and in order to
To the further loss of weight of lower body, the first mounting portion 104 for installation chassis torsion-beam 40 is designed using engraved structure.
In the present embodiment, referring to Figure 5, for installing damping spring 50 is additionally provided in the lower wall portion of groove body 100
Two mounting portions 107, i.e. the second mounting portion 107 and the first mounting portion 104 are located at the same side of stringer main body 10, the second mounting portion
107 are equipped with position limiting structure 108, and position limiting structure 108 is used to limit the compression travel of damping spring 50, guarantee damping spring 50
Buffering and damping effect.Specifically, the top of damping spring 50 is equipped with buffer stopper, and buffer stopper is fixed to be used to limit suspension on the car body
Bump travel, buffer stopper have buffer part, and the bottom end of buffer part is protruded into vertically in damping spring 50, and the setting of position limiting structure 108 exists
In damping spring 50 and there is the positive trend for contacting buffer part, when vehicle body teetertotters, damping spring 50 is compressed, buffer part
It is contacted with position limiting structure 108 and realizes buffer function, meanwhile, the mobile stroke of buffer part is limited by position limiting structure 108, is guaranteed slow
Rush effect.Specifically, position limiting structure 108 includes the round estrade being vertical on the second mounting portion 107, it should be noted that this
Position limiting structure 108 in embodiment is not limited only to round estrade, realizes buffering effect as long as can contact with buffer part.Further
Ground, in actual use, the distance between position limiting structure 108 and buffer part can do adaptability tune according to vehicle needs
It is whole.
Preferably, the side wall of groove body 100 is equipped with the overlap edge 109 for connecting with floor, and overlap edge 109 is along vertical
The length direction of beam body 10 arranges that floor connect the stability to guarantee connection by overlap edge 109 with stringer main body 10.
Further, in conjunction with shown in Fig. 2 and Fig. 9, the side wall of groove body 100 is additionally provided with the mounting groove installed for crossbeam 60
110, mounting groove 110 is equipped with the first connection edge 110a and second connect with crossbeam 60 and connects edge 110b, when assembly, crossbeam
60 have the connecting pin connecting with stringer main body 10, and the top of connecting pin connect edge 110a with first and is connected and fixed, connecting pin
Lower part connect edge 110b with second and be connected and fixed, guarantee that 60 upper and lower part of crossbeam has connection supporting point with enhancing structure
Stability, generally, pass through the connections such as fastener such as screw or bolt fasten, it is preferable that for guarantee connection stability simultaneously
Convenient for the placement of crossbeam 60, the second connection of setting edge 110b protrudes from the first connection edge 110a, i.e., the second connection edge
110b is longer than the first connection edge 110a.
In conclusion the utility model provides a kind of vehicle body rear longitudinal beam structure, including stringer main body 10 and with stringer master
The stringer sealing plate 20 that body 10 matches, stringer sealing plate 20 and stringer main body 10 overlap and form cavity body structure between.For
Meet automotive light weight technology requirement, stringer main body 10 uses aluminium alloy high pressure casting and forming, and structural strength height is able to satisfy vehicle body
Collision performance, and can effectively reduce car body weight, the upper end of stringer sealing plate 20 upwardly extends and protrudes from the upper of stringer main body 10
End, to form the extension 201 for connecting with upper body.In this way, passing through steel stringer sealing plate 20 when upper and lower car body is merged
Extension 201 connect with upper body spot welding, guarantee the tie point being merged be steel spot welding so that upper body and floor side member when being merged
Structure can share a production line with conventional steel vehicle body, be transformed without butt welding tongs and production line, reduce equipment investment
Cost.
It should be understood that various information are described in the utility model using term " first ", " second " etc., but these
Information should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from this
In the case where utility model range, " first " information can also be referred to as " second " information, and similar, " second " information can also be with
Referred to as " first " information.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821716456.8U CN208947414U (en) | 2018-10-22 | 2018-10-22 | Vehicle body rear longitudinal beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821716456.8U CN208947414U (en) | 2018-10-22 | 2018-10-22 | Vehicle body rear longitudinal beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208947414U true CN208947414U (en) | 2019-06-07 |
Family
ID=66742533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821716456.8U Active CN208947414U (en) | 2018-10-22 | 2018-10-22 | Vehicle body rear longitudinal beam structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208947414U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771951A (en) * | 2021-09-30 | 2021-12-10 | 浙江零跑科技股份有限公司 | Rear longitudinal beam structure and new energy automobile |
| CN114475813A (en) * | 2022-01-29 | 2022-05-13 | 重庆长安汽车股份有限公司 | Side opening type vehicle body longitudinal beam |
| WO2023088324A1 (en) * | 2021-11-17 | 2023-05-25 | 武汉路特斯汽车有限公司 | Rear side member, rear side member structure, and vehicle |
-
2018
- 2018-10-22 CN CN201821716456.8U patent/CN208947414U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771951A (en) * | 2021-09-30 | 2021-12-10 | 浙江零跑科技股份有限公司 | Rear longitudinal beam structure and new energy automobile |
| WO2023088324A1 (en) * | 2021-11-17 | 2023-05-25 | 武汉路特斯汽车有限公司 | Rear side member, rear side member structure, and vehicle |
| CN114475813A (en) * | 2022-01-29 | 2022-05-13 | 重庆长安汽车股份有限公司 | Side opening type vehicle body longitudinal beam |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |