CN105083383A - Automotive body longitudinal beam structure - Google Patents
Automotive body longitudinal beam structure Download PDFInfo
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- CN105083383A CN105083383A CN201510488504.7A CN201510488504A CN105083383A CN 105083383 A CN105083383 A CN 105083383A CN 201510488504 A CN201510488504 A CN 201510488504A CN 105083383 A CN105083383 A CN 105083383A
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- side member
- front side
- leading portion
- back segment
- floor side
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Abstract
The invention relates to an automotive body longitudinal beam structure. The five-section split type structure is composed of a front longitudinal beam and a rear longitudinal beam, wherein the front longitudinal beam and the rear longitudinal beam are connected through a doorsill cross beam, the front longitudinal beam is composed of a front section and a rear section, and the rear longitudinal beam is composed of a front section and a rear section; the front section of the front longitudinal beam, the rear section of the front longitudinal beam, the doorsill cross beam, the front section of the rear longitudinal beam and the rear section of the rear longitudinal beam are all of thin-wall structures made of aluminum-silicon-magnesium-manganese alloy and are sequentially connected to be an integral closed cavity thin-wall structure through tailored blank laser welding, and a reinforcing board is arranged in a closed cavity. According to the structure, based on the consideration of the physical characteristics of aluminum, the traditional thin-wall design of an iron material is changed, the defects of aluminum are overcome through structural design, and the safety performance of an automobile is improved. Furthermore, the structure is simple, convenient to manufacture, easy to mount and dismount, high in economical efficiency, and high in implementation and promotion values.
Description
Technical field
The present invention relates to a kind of autobody stringpiece structure, belong to electronlmobil accessory technical field.
Background technology
Traditional girder work mostly is butt welding piece, and structure 26S Proteasome Structure and Function is more single, and soldering part is more, but this to welding and matching requirements very high.Existing integral type longeron, general little employing aluminium material, iron material matter can cause weight comparatively large, and elongation at fracture and the yield strength of aluminium are lower, easily lose efficacy at collision process.
At vehicle structure and secure context, the longeron of automobile plays an important role, and it is longitudinally arranged along vehicle body, is generally and is symmetrically arranged.The strength demand of the central collision of longeron demand fulfillment and side impact harshness, also simultaneously also will as the important component of vehicle body, connects and it arranges relevant parts.Intensity as the framing member that vehicle offset collision is the most key, the intensity of front side member, particularly front side member back segment sinker area is most important for vehicle offset capability.For 40% offset collision, because vehicle only participates in collision less than the structure of half, car body is relatively soft, car body is out of shape seriously in an impact, larger car body intrusion volume can cause passenger's living space not enough, and particularly vehicle dash panel plate intrusion volume is comparatively large, causes shank to injure larger.The front portion of existing longeron and the connection area of operator's compartment little, and without other supporting constructions, easily cause the anterior stress of operator's compartment to be concentrated, produce panel beating cracking phenomena, make operator's compartment life-span premature failure.
Summary of the invention
The present invention is directed to deficiency and the defect of prior art existence, a kind of autobody stringpiece structure is provided.
For achieving the above object, the technical solution adopted in the present invention is: a kind of autobody stringpiece structure, adopt five sections of split-type structurals, be made up of front side member and floor side member, before, floor side member is connected by threshold crossbeam, described front side member is divided into front side member leading portion and front side member back segment, described floor side member is divided into floor side member leading portion and floor side member back segment, described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment are the thin-wall construction adopting aluminium silicon magnesium-manganese alloy to make, sequentially as a whole formation closed cavities thin-wall construction is welded to connect into successively by the mode of laser assembly solder, and brace panel is provided with in closed cavities.
In said structure, described front side member leading portion, front side member back segment, floor side member leading portion and floor side member back segment all adopt aluminium extrusion process to make, and by T7 heat treatment.
In said structure, described threshold crossbeam adopts aluminium extrusion technique to make, and by T6 heat treatment.
In said structure, the welding junction of described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment all arranges fixing structure.
In said structure, described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and the outer eel wing outer wall of floor side member back segment is equipped with for being connected non-al member.
In said structure, described front side member leading portion and fitting surface floor side member rear end is respectively equipped with in order to be connected with front body front support framework and the fitting surface in order to be connected with rear rear support framework.
In said structure, described floor side member leading portion and front side member back segment are horn-like.
The invention has the beneficial effects as follows: 1, structurally, front side member leading portion of the present invention, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment five Split type structures are fixedly connected with through sequence of welding, and its space is arranged convenient more flexibly;
2, structurally, floor side member leading portion of the present invention and front side member back segment are horn-like, and energy actv. transmitted load, can improve again the section factor in the middle part of longeron and resistance to bending, meet load bearing requirements;
3, structurally, described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and the outer eel wing outer wall of floor side member back segment is equipped with for being connected non-al member of the present invention, non-al member can be connect by pressing or rushing to be riveting, easy for installation;
4, structurally, the welding junction of described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment of the present invention all arranges fixing structure, is convenient to welding;
5, in sum, the present invention is considering the physical property of aluminium, change the thin-walled design of conventional iron material, the self shortcoming of aluminium is made up by structure design of the present invention, improve vehicle safety performance, and structure simple, easy to make, be easy to Assembly &Disassembly, there is good economic benefit, there are extremely strong promotion and implementation and be worth.
Accompanying drawing explanation
Fig. 1 is the perspective view of autobody stringpiece structure of the present invention;
Fig. 2 is the plan structure schematic diagram of autobody stringpiece structure of the present invention;
Fig. 3 is the main TV structure schematic diagram of autobody stringpiece structure of the present invention;
Fig. 4 is A-A structural representation in Fig. 3;
Fig. 5 is B-B structural representation in Fig. 3;
Fig. 6 is C-C structural representation in Fig. 3;
Fig. 7 is D-D structural representation in Fig. 3;
Fig. 8 is the detonation configuration schematic diagram of autobody stringpiece structure of the present invention.
The meaning of number in the figure representative is: 1, front side member leading portion, 2, front side member back segment, 3, front side member back segment end, 4, doorframe crossbeam, 5, floor side member leading portion, and 6 represent floor side member back segment.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail:
Embodiment 1: see Fig. 1 to Fig. 8, a kind of autobody stringpiece structure, adopt five sections of split-type structurals, be made up of front side member and floor side member, before, floor side member is connected by threshold crossbeam, described front side member is divided into front side member leading portion and front side member back segment, described floor side member is divided into floor side member leading portion and floor side member back segment, described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment are the thin-wall construction adopting aluminium silicon magnesium-manganese alloy (Alsi10MnMg) to make, sequentially as a whole formation closed cavities thin-wall construction is welded to connect into successively by the mode of laser assembly solder, and brace panel is provided with in closed cavities.
Described front side member leading portion, front side member back segment, floor side member leading portion and floor side member back segment all adopt aluminium extrusion process to make, and by T7 heat treatment.Described threshold crossbeam adopts aluminium extrusion technique to make, and by T6 heat treatment.Component after T7 and T6 process, can significantly improve yield strength and the elongation at fracture of aluminum alloy, can meet collision and requirement of strength, can meet again the demand of Vehicle mass reduction simultaneously.
For the ease of welding, the welding junction of described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment all arranges fixing structure.Described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and the outer eel wing outer wall of floor side member back segment is equipped with for being connected non-al member.Described front side member leading portion and fitting surface floor side member rear end is respectively equipped with in order to be connected with front body front support framework and the fitting surface in order to be connected with rear rear support framework.Described floor side member leading portion and front side member back segment are horn-like.
Claims (7)
1. an autobody stringpiece structure, adopt five sections of split-type structurals, be made up of front side member and floor side member, before, floor side member is connected by threshold crossbeam, described front side member is divided into front side member leading portion and front side member back segment, described floor side member is divided into floor side member leading portion and floor side member back segment, it is characterized in that: described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment are the thin-wall construction adopting aluminium silicon magnesium-manganese alloy to make, sequentially as a whole formation closed cavities thin-wall construction is welded to connect into successively by the mode of laser assembly solder, and brace panel is provided with in closed cavities.
2. autobody stringpiece structure according to claim 1, is characterized in that: described front side member leading portion, front side member back segment, floor side member leading portion and floor side member back segment all adopt aluminium extrusion process to make, and by T7 heat treatment.
3. autobody stringpiece structure according to claim 1, is characterized in that: described threshold crossbeam adopts aluminium extrusion technique to make, and by T6 heat treatment.
4. autobody stringpiece structure according to claim 1, is characterized in that: the welding junction of described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and floor side member back segment all arranges fixing structure.
5. the autobody stringpiece structure according to claim 1 or 4, is characterized in that: described front side member leading portion, front side member back segment, threshold crossbeam, floor side member leading portion and the outer eel wing outer wall of floor side member back segment is equipped with for being connected non-al member.
6. autobody stringpiece structure according to claim 1, is characterized in that: described front side member leading portion and fitting surface floor side member back segment is respectively equipped with in order to be connected with front body front support framework and the fitting surface in order to be connected with rear rear support framework.
7. autobody stringpiece structure according to claim 1, is characterized in that: described floor side member leading portion and front side member back segment are horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488504.7A CN105083383A (en) | 2015-08-11 | 2015-08-11 | Automotive body longitudinal beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488504.7A CN105083383A (en) | 2015-08-11 | 2015-08-11 | Automotive body longitudinal beam structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105083383A true CN105083383A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510488504.7A Pending CN105083383A (en) | 2015-08-11 | 2015-08-11 | Automotive body longitudinal beam structure |
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| CN (1) | CN105083383A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143618A (en) * | 2016-07-29 | 2016-11-23 | 奇瑞新能源汽车技术有限公司 | Automobile front longitudinal beam assembly |
| CN106143629A (en) * | 2016-07-29 | 2016-11-23 | 奇瑞新能源汽车技术有限公司 | Vehicle body framework construction |
| CN109131576A (en) * | 2018-08-03 | 2019-01-04 | 武汉理工大学 | A kind of continuous intensity adjustable front rail structure |
| CN109823396A (en) * | 2017-11-23 | 2019-05-31 | 上汽通用五菱汽车股份有限公司 | A kind of chassis afterframe assembly |
| CN113120085A (en) * | 2019-12-31 | 2021-07-16 | 奥动新能源汽车科技有限公司 | Automobile body support, automobile body support subassembly and electric automobile with fixed back beam |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143618A (en) * | 2016-07-29 | 2016-11-23 | 奇瑞新能源汽车技术有限公司 | Automobile front longitudinal beam assembly |
| CN106143629A (en) * | 2016-07-29 | 2016-11-23 | 奇瑞新能源汽车技术有限公司 | Vehicle body framework construction |
| CN106143618B (en) * | 2016-07-29 | 2019-06-18 | 奇瑞新能源汽车技术有限公司 | Automobile front longitudinal beam assembly |
| CN109823396A (en) * | 2017-11-23 | 2019-05-31 | 上汽通用五菱汽车股份有限公司 | A kind of chassis afterframe assembly |
| CN109823396B (en) * | 2017-11-23 | 2024-05-10 | 上汽通用五菱汽车股份有限公司 | Rear frame assembly of chassis of vehicle body |
| CN109131576A (en) * | 2018-08-03 | 2019-01-04 | 武汉理工大学 | A kind of continuous intensity adjustable front rail structure |
| CN113120085A (en) * | 2019-12-31 | 2021-07-16 | 奥动新能源汽车科技有限公司 | Automobile body support, automobile body support subassembly and electric automobile with fixed back beam |
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Application publication date: 20151125 |