CN209757261U - Connecting structure of front longitudinal beam of aluminum alloy vehicle body - Google Patents
Connecting structure of front longitudinal beam of aluminum alloy vehicle body Download PDFInfo
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- CN209757261U CN209757261U CN201920254356.6U CN201920254356U CN209757261U CN 209757261 U CN209757261 U CN 209757261U CN 201920254356 U CN201920254356 U CN 201920254356U CN 209757261 U CN209757261 U CN 209757261U
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Abstract
The utility model relates to a connection structure of aluminum alloy automobile body front longitudinal, including front longitudinal, characterized by: the front longitudinal beam rear reinforcement is connected with the rear end part of the front longitudinal beam in a matched mode, the end part of the front longitudinal beam rear reinforcement is connected with the inner side of the front longitudinal beam rear reinforcement in a matched mode, the lower end part of the front longitudinal beam rear reinforcement is connected with the A column in a matched mode, and the front end part of the front longitudinal beam rear reinforcement is connected with the rear end part of the front longitudinal beam rear reinforcement in a matched mode. The strength of the rear part of the front longitudinal beam can be increased, and meanwhile, the problem that the rear part of the front longitudinal beam upwarps to harm passengers and the safety of a battery pack system in the high-speed collision process can be avoided; the energy can be absorbed in a deformation mode during collision, so that the intrusion amount of a vehicle body structure in the collision process is reduced, the space of passengers is ensured, and the collision safety performance of the vehicle is improved; the axial impact resistance and the bending strength of the reinforcement body can be enhanced, and the impact caused in the high-speed collision process can be resisted; can be suitable for different motorcycle types.
Description
Technical Field
The utility model relates to an automobile body, concretely relates to connection structure of longeron before aluminum alloy automobile body.
Background
High-speed frontal collision is an important test for evaluating the collision safety performance of the whole vehicle, and the invasion amount of a front wall plate is too large in the collision process, so that the living space of a passenger can be reduced, and the body of the passenger is extruded and damaged. Especially for new energy vehicle types, the front end of the battery pack system is extruded and deformed due to the fact that the rear portion of the front longitudinal beam is warped upwards. When the vehicle body structure is designed, the main idea is to improve the structural strength of the rear part of the front longitudinal beam and prevent the rear part of the front longitudinal beam from upwarping so as to achieve the purpose of reducing the collision invasion.
At present, aluminum alloy is widely applied to automobile bodies, the conventionally designed aluminum alloy front longitudinal beam is of an integral structure, the rear part of the front longitudinal beam cannot be guaranteed to have enough strength and bending resistance, and the safety of passengers and a battery pack system cannot be guaranteed. Excessive thickness increases not only result in excessive costs, but also increase the difficulty of the manufacturing process. Therefore, the front longitudinal beam needs to be reasonably designed to ensure the strength, reduce the cost, reduce the process and the like.
Disclosure of Invention
The utility model aims at providing a connecting structure of a front longitudinal beam of an aluminum alloy vehicle body, which can increase the strength of the rear part of the front longitudinal beam and simultaneously avoid the problem that the rear part of the front longitudinal beam upwarps to harm the safety of passengers and a battery pack system in the high-speed collision process; the energy can be absorbed in a deformation mode during collision, so that the intrusion amount of a vehicle body structure in the collision process is reduced, the space of passengers is ensured, and the collision safety performance of the vehicle is improved; the axial impact resistance and the bending strength of the reinforcement body can be enhanced, and the impact caused in the high-speed collision process can be resisted; can be suitable for different motorcycle types.
A connection structure of aluminum alloy automobile body front longitudinal, including front longitudinal, characterized by: the front longitudinal beam rear reinforcement is connected with the rear end part of the front longitudinal beam in a matched mode, the end part of the front longitudinal beam rear reinforcement is connected with the inner side of the front longitudinal beam rear reinforcement in a matched mode, the lower end part of the front longitudinal beam rear reinforcement is connected with the A column in a matched mode, and the front end part of the front longitudinal beam rear reinforcement is connected with the rear end part of the front longitudinal beam rear reinforcement in a matched mode.
Further, the reinforcement behind the front longitudinal beam includes the reinforcement body and rather than the reinforcement apron that the cooperation is connected, the section of reinforcement body is the outside U-shaped structure of opening, the reinforcement apron is the inside U-shaped structure of opening, the reinforcement apron is connected with the relative cooperation in opening position of reinforcement body.
Further, the reinforcement body is provided with a longitudinal connecting part, and the rear end of the longitudinal connecting part extends outwards and backwards to form a rear connecting part; the inner surface of the longitudinal connecting part is provided with a front mounting part, and the rear end part of the front longitudinal beam is connected with the front mounting part of the longitudinal connecting part in a matching way; the rear end of the rear connecting portion is provided with a flange, and the lower end portion of the A column and the front end portion of the threshold beam are connected with the flange at the rear end of the rear connecting portion in a matched mode.
Further, staggered reinforcing ribs are arranged on the inner surface of the reinforcement body.
Furthermore, the strengthening rib includes many vertical strengthening ribs, many Z to the strengthening rib, Z is to the strengthening rib part wave form, just vertical strengthening rib and the crossing cavity structure that constitutes of Z to the strengthening rib.
furthermore, the reinforcing rib also comprises an oblique reinforcing rib connected with the opposite angle of the cavity structure.
Furthermore, the front longitudinal beam, the front section floor, the A column, the threshold beam and the front longitudinal beam rear reinforcement are connected in a riveting mode.
The utility model discloses profitable technological effect:
Because the rear end part of the front longitudinal beam is matched and connected with the front longitudinal beam rear reinforcing part and the front end part of the front section floor, the lower end part of the A column and the front end part of the threshold beam, the strength of the rear part of the front longitudinal beam can be increased, and the problem that the rear part of the front longitudinal beam upwarps to damage passengers and the safety of a battery pack system can be avoided in the high-speed collision process; the front longitudinal beam rear reinforcement is a cavity structure formed by combining the reinforcement body and the reinforcement cover plate, and the front longitudinal beam is matched and connected with the front mounting part on the longitudinal connecting part of the reinforcement body, so that deformation energy absorption can be realized during collision, the intrusion amount of a vehicle body structure in the collision process is reduced, the passenger space is ensured, and the collision safety performance of a vehicle is improved; because the staggered reinforcing ribs are arranged on the inner surface of the reinforcing piece body, the axial impact resistance and the bending strength of the reinforcing piece body can be enhanced, and the impact caused in the high-speed collision process can be resisted.
Drawings
Fig. 1 is one of the schematic structural diagrams of the present invention;
FIG. 2 is a second schematic structural view of the present invention (the reinforcement cover is not shown);
Fig. 3 is a structural schematic view of the reinforcement body.
In the figure: 1-front longitudinal beam, 2-front longitudinal beam rear reinforcement, 3-front section floor, 4-A column, 5-threshold beam;
21-reinforcement body, 22-reinforcement cover plate, 23-longitudinal connecting part, 24-rear connecting part, 25-longitudinal reinforcing rib, 26-Z-direction reinforcing rib and 27-oblique reinforcing rib.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples. The utility model provides a preceding is car locomotive direction, and the back is the car rear of a vehicle reverse, and the automobile body is inside to be interior, and the automobile body outside is outer.
Referring to fig. 1 to 3, the connecting structure of the front longitudinal beam of the aluminum alloy vehicle body comprises a front longitudinal beam 1, and is characterized in that: the front longitudinal beam rear reinforcement is characterized by further comprising a front longitudinal beam rear reinforcement 2 in matched connection with the rear end part of the front longitudinal beam 1, a front section floor 3 with the end part matched and connected with the inner side of the front longitudinal beam rear reinforcement 2, an A column 4 with the lower end part matched and connected with the rear end part of the front longitudinal beam rear reinforcement 2, and a threshold beam 5 with the front end part matched and connected with the rear end part of the front longitudinal beam rear reinforcement 2. Because the rear end part of the front longitudinal beam is matched and connected with the front longitudinal beam rear reinforcing part 2, and the end part of the front section floor 3, the lower end part of the A column 4 and the front end part of the threshold beam 5 are connected with the front longitudinal beam rear reinforcing part 2, the strength of the rear part of the front longitudinal beam 1 can be increased, and the problem that the rear part of the front longitudinal beam upwarps to damage passengers and the safety of a battery pack system in the high-speed collision process can be avoided.
The front longitudinal beam rear reinforcement 2 comprises a reinforcement body 21 and a reinforcement cover plate 22 connected with the reinforcement body in a matched mode, the section of the reinforcement body 21 is of a U-shaped structure with an outward opening, the reinforcement cover plate 22 is of a U-shaped structure with an inward opening, and the reinforcement cover plate 22 is connected with the opening of the reinforcement body 21 in a matched mode relatively. The reinforcement cover 22 can both increase the strength of the front-side member rear reinforcement 2 and ensure the aesthetic appearance thereof.
The reinforcement body 21 has a longitudinal connecting portion 23, and a rear end of the longitudinal connecting portion 23 extends outward and rearward to form a rear connecting portion 24; the inner surface of the longitudinal connecting part 23 is provided with a front mounting part, and the rear end part of the front longitudinal beam 1 is matched and connected with the front mounting part of the longitudinal connecting part 23; the rear end of the rear connecting portion 24 is provided with a flange, and the lower end portion of the A column 4 and the front end portion of the threshold beam 5 are connected with the flange at the rear end of the rear connecting portion 24 in a matched mode. The front longitudinal beam rear reinforcement 2 is a cavity structure formed by buckling the reinforcement body 21 and the reinforcement cover plate 22, and the front longitudinal beam 1 is matched and connected with the front mounting part on the longitudinal connecting part 23 of the reinforcement body 21, so that the energy can be deformed and absorbed, the intrusion amount of a vehicle body structure in the collision process is reduced, the space of passengers is ensured, and the collision safety performance of a vehicle is improved.
Staggered reinforcing ribs are arranged on the inner surface of the reinforcement body 21. The reinforcing ribs can further increase the strength of the reinforcement body 21.
The reinforcing ribs comprise a plurality of longitudinal reinforcing ribs 25 and a plurality of Z-direction reinforcing ribs 26, the Z-direction reinforcing ribs 26 are partially wavy, and the longitudinal reinforcing ribs 25 and the Z-direction reinforcing ribs 26 are intersected to form a cavity structure.
The reinforcing ribs further comprise oblique reinforcing ribs 27 connecting opposite corners of the cavity structure. The longitudinal ribs 25, the Z-ribs 26, and the oblique ribs 27 can enhance the axial impact resistance and the bending strength of the reinforcement body 21, and resist impact caused during high-speed collision.
The front longitudinal beam 1, the front section floor 3, the A column 4, the threshold beam 5 and the front longitudinal beam rear reinforcement 2 are connected in a riveting mode. The riveting mode can improve the installation efficiency.
The reinforcement body 21 adopts a vacuum high-pressure aluminum casting mode, and the casting process can obviously improve the molding of aluminum casting materials and has good elongation percentage property after fracture.
When high-speed collision occurs, the front longitudinal beam 1 can move backwards relative to the front longitudinal beam rear reinforcing part 2 and extrude the front longitudinal beam rear reinforcing part 2 to deform the front longitudinal beam rear reinforcing part, and the front longitudinal beam rear reinforcing part 2 not only can absorb collision energy, reduce the intrusion amount of a vehicle body structure in the collision process, ensure the space of passengers and improve the collision safety performance of a vehicle. Because the strength of the front-end-beam-type rear-end-frame-type rear-. The front longitudinal beam rear reinforcing part 2 can be suitable for different vehicle types, namely, can adapt to front longitudinal beams with different thicknesses and section structures.
Claims (7)
1. The utility model provides a connection structure of aluminum alloy automobile body front longitudinal, includes front longitudinal (1), characterized by: the front longitudinal beam rear reinforcement is characterized by further comprising a front longitudinal beam rear reinforcement (2) in matched connection with the rear end part of the front longitudinal beam (1), a front section floor (3) with the end part matched and connected with the inner side of the front longitudinal beam rear reinforcement (2), an A column (4) with the lower end part matched and connected with the rear end part of the front longitudinal beam rear reinforcement (2), and a threshold beam (5) with the front end part matched and connected with the rear end part of the front longitudinal beam rear reinforcement (2).
2. The aluminum alloy vehicle body front side member connecting structure according to claim 1, wherein: the front longitudinal beam rear reinforcement (2) comprises a reinforcement body (21) and a reinforcement cover plate (22) connected with the reinforcement body in a matched mode, the section of the reinforcement body (21) is of a U-shaped structure with an outward opening, the reinforcement cover plate (22) is of a U-shaped structure with an inward opening, and the reinforcement cover plate (22) is connected with the opening of the reinforcement body (21) in a matched mode relatively.
3. The aluminum alloy vehicle body front side member connecting structure according to claim 2, wherein: the reinforcement body (21) is provided with a longitudinal connecting part (23), and the rear end of the longitudinal connecting part (23) extends outwards and backwards to form a rear connecting part (24); the inner surface of the longitudinal connecting part (23) is provided with a front mounting part, and the rear end part of the front longitudinal beam (1) is connected with the front mounting part of the longitudinal connecting part (23) in a matching way; the rear end of the rear connecting portion (24) is provided with a flange, and the lower end portion of the A column (4) and the front end portion of the threshold beam (5) are connected with the flange at the rear end of the rear connecting portion (24) in a matched mode.
4. The aluminum alloy vehicle body front side member connecting structure according to claim 2 or 3, wherein: staggered reinforcing ribs are arranged on the inner surface of the reinforcement body (21).
5. The aluminum alloy vehicle body front side member connecting structure according to claim 4, wherein: the reinforcing ribs comprise a plurality of longitudinal reinforcing ribs (25) and a plurality of Z-direction reinforcing ribs (26), the Z-direction reinforcing ribs (26) are wavy, and the longitudinal reinforcing ribs (25) and the Z-direction reinforcing ribs (26) are intersected to form a cavity structure.
6. the aluminum alloy vehicle body front side member connecting structure according to claim 5, wherein: the reinforcing rib further comprises an oblique reinforcing rib (27) connected with the opposite angle of the cavity structure.
7. The aluminum alloy vehicle body front side member connecting structure according to claim 1, wherein: the front longitudinal beam (1), the front section floor (3), the A column (4), the threshold beam (5) and the front longitudinal beam rear reinforcement (2) are connected in a riveting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254356.6U CN209757261U (en) | 2019-02-28 | 2019-02-28 | Connecting structure of front longitudinal beam of aluminum alloy vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254356.6U CN209757261U (en) | 2019-02-28 | 2019-02-28 | Connecting structure of front longitudinal beam of aluminum alloy vehicle body |
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| CN209757261U true CN209757261U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920254356.6U Active CN209757261U (en) | 2019-02-28 | 2019-02-28 | Connecting structure of front longitudinal beam of aluminum alloy vehicle body |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114274A (en) * | 2020-01-08 | 2020-05-08 | 上海龙创汽车设计股份有限公司 | Connection structure for engine spandrel girder |
| CN112622795A (en) * | 2020-12-28 | 2021-04-09 | 湖南大学 | Head-on collision resistant vehicle structure and manufacturing method |
| CN112623040A (en) * | 2020-12-28 | 2021-04-09 | 湖南大学 | Structure for front vehicle body integrated installation and manufacturing method thereof |
| CN115257930A (en) * | 2022-08-29 | 2022-11-01 | 奇瑞新能源汽车股份有限公司 | Automobile front longitudinal beam rear assembly structure |
-
2019
- 2019-02-28 CN CN201920254356.6U patent/CN209757261U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114274A (en) * | 2020-01-08 | 2020-05-08 | 上海龙创汽车设计股份有限公司 | Connection structure for engine spandrel girder |
| CN111114274B (en) * | 2020-01-08 | 2021-03-26 | 上海龙创汽车设计股份有限公司 | Connection structure for engine spandrel girder |
| CN112622795A (en) * | 2020-12-28 | 2021-04-09 | 湖南大学 | Head-on collision resistant vehicle structure and manufacturing method |
| CN112623040A (en) * | 2020-12-28 | 2021-04-09 | 湖南大学 | Structure for front vehicle body integrated installation and manufacturing method thereof |
| CN112623040B (en) * | 2020-12-28 | 2022-04-01 | 湖南大学 | Structure for front vehicle body integrated installation and manufacturing method thereof |
| CN115257930A (en) * | 2022-08-29 | 2022-11-01 | 奇瑞新能源汽车股份有限公司 | Automobile front longitudinal beam rear assembly structure |
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