CN108016506B - vehicle cabin assembly - Google Patents

Abstract

A vehicle cabin assembly includes a main longitudinal beam of the cabin, a sub-frame, a connecting plate, a front end beam, a sub-frame reinforcement and an upper longitudinal beam, and the sub-frame includes a sub-frame beam and is connected to the auxiliary frame. The lower longitudinal beam of the frame beam, the connecting plate is connected to the sub-frame beam, the main longitudinal beam of the nacelle and the upper longitudinal beam extend along the vehicle length direction, and one end is connected to the connecting plate, the The sub-frame reinforcement is connected to both ends of the sub-frame cross member and the outer side surface of the main longitudinal beam of the nacelle along the vehicle width direction, and the front end beam extends from the sub-frame reinforcement to the outer side of the vehicle in the longitudinal direction of the vehicle. above the end of the stringer. In the cabin assembly of this vehicle, due to the arrangement of the front end beam and the subframe reinforcement, when a small offset collision occurs, it can effectively support and avoid obstacles, and transmit the collision force to the rear of the rear cabin by the subframe reinforcement and the front end beam. , which improves the transmission path of the collision force.

Description

vehicle cabin assembly

technical field

The invention relates to the technical field of automobiles, and in particular, to a vehicle cabin assembly.

Background technique

With the growth of car ownership, traffic accidents occur frequently, and vehicle safety has attracted much attention. According to statistics, the probability of a frontal collision including an oblique collision in a collision involving all types of injuries is about 40%. However, in various frontal collisions, the probability of a traffic accident simulated by a full-width collision accounts for 41%. Others The probability of a formal collision occurring is 59%. Therefore, the study of offset collision is the focus of automobile safety research. In the offset crash test, typical body energy-absorbing structures, such as bumpers and front side members, cannot play a real role.

A 25% overlapping surface crash test conducted by the Insurance Institute for Highway Safety (IIHS) recently showed that many recognized safety brands failed to achieve satisfactory results. , resulting in serious structural deformation of the outer side of the longitudinal beam during the collision process, and there is a greater safety hazard.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a vehicle cabin assembly that can cope with a small offset collision.

In view of this, the present invention provides a vehicle cabin assembly, which is characterized by comprising a main longitudinal beam of the cabin, a sub-frame, a connecting plate, a front end beam, a reinforcement of the sub-frame and an upper longitudinal beam, and the sub-frame includes There are subframe beams and lower longitudinal beams connected to the subframe beams, the connecting plate is connected to the subframe beams, the cabin main longitudinal beam and the upper longitudinal beam extend along the vehicle length direction, And one end is connected to the connecting plate, the sub-frame reinforcement is connected to both ends of the sub-frame cross member and the outer side of the main longitudinal beam of the cabin along the vehicle width direction, and the front end beam extends from the front end along the vehicle length direction. The subframe reinforcement extends to the end of the upper side member.

Further, when viewed from above the vehicle, the subframe reinforcement is in a triangular structure.

Further, the sub-frame reinforcement is a triangular prism frame structure, one side surface of the sub-frame reinforcement is connected to the main longitudinal beam of the nacelle, and one end surface of the sub-frame reinforcement is connected to the auxiliary vehicle. Connect the beams.

Further, viewed from the top of the vehicle, the end of the front end beam connected to the subframe reinforcement is arc-shaped.

Further, when viewed from above the vehicle, the front end beam is arched toward the outside of the vehicle to form a curved structure.

Further, viewed from the side of the vehicle, the front end beam is arc-shaped; the front end beam includes a front end curved beam and a rear end connecting piece, and the rear end connecting piece is attached and connected to the end of the upper longitudinal beam.

Further, there are two main longitudinal beams of the cabin, which are respectively disposed on two opposite sides of the vehicle cabin assembly along the vehicle width direction; the sub-frame includes two of the lower longitudinal beams, two of the lower longitudinal beams One end of the longitudinal beam is connected to two ends of the subframe cross beam respectively, and the two lower longitudinal beams are located inside the two main longitudinal beams of the nacelle.

Further, along the vehicle width direction, the two connecting plates are respectively disposed adjacent to the two subframe reinforcements, and are located on the inner side of the subframe reinforcements, and along the vehicle length direction, the connecting plates Also on the front side of the subframe reinforcement.

Further, viewed from the side of the vehicle, the front end beam is located between the lower side member and the upper side member, and the subframe reinforcement is located above the subframe cross member.

Further, there are two upper longitudinal beams, which are respectively arranged on both sides of the vehicle width direction, and one end of the upper longitudinal beam connected to the connecting plate is arc-shaped, and the upper longitudinal beam is located at the front end beam. above.

The present invention has the beneficial effects that the rigidity of the entire nacelle can be ensured, the supporting force of the front part of the longitudinal beam can be improved, the front end longitudinal beam of the nacelle can be sufficiently crushed, and the collision performance of the nacelle can be improved. The subframe reinforcement at the front end of the connecting structure adopts a triangular structure design, which can effectively support the barrier and improve the collision transmission path when a small offset collision occurs. In addition, the front end of the connection structure adopts a circular arc connection structure. When a small offset collision occurs, the collision force can be effectively decomposed, and at the same time, the collision force at the front end of the vehicle body is transmitted to the vehicle body along the tangential direction of the arc, effectively reducing the collision. Damage to the passenger compartment.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic three-dimensional structure diagram of a vehicle cabin assembly according to an embodiment of the present invention.

FIG. 2 is a partial structural schematic diagram of the vehicle cabin assembly shown in FIG. 1 .

FIG. 3 is a schematic view of a collision of the vehicle cabin assembly shown in FIG. 1 .

Description of drawings: 1. Main longitudinal beam of engine room; 2. Subframe; 21. Subframe beam; 22. Lower longitudinal beam; 3. Connecting plate; 4. Front beam; 41. Front bending beam; 42. Rear end Connector; 5. Subframe reinforcement; 6. Upper longitudinal beam; 7. Collision object.

Detailed ways

The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional and positional terms mentioned in the present invention, such as "up", "down", "front", "rear", "left", "right", "inside", "outside", "top", "bottom" ”, “sideways”, etc., only refer to the orientation or position of the drawings. Therefore, the directional and positional terms used are for describing and understanding the present invention, rather than limiting the protection scope of the present invention.

Referring to FIG. 1 , an embodiment of the present invention provides a vehicle cabin assembly, including: a main longitudinal beam 1 of a cabin, a sub-frame 2, a connecting plate 3, a front end beam 4, a sub-frame reinforcement 5 and an upper longitudinal beam 6. The subframe 2 includes a subframe cross member 21 and a lower side member 22 connected to the subframe cross member 21 . The main longitudinal beam 1 of the nacelle is connected above the subframe 2 and the front end of the main longitudinal beam 1 of the nacelle is provided with a connecting plate 3, the upper end of the connecting plate 3 is provided with an upper longitudinal beam 6 extending along the length direction of the vehicle, and the lower end is connected with the subframe beam 21 , the sub-frame reinforcement 5 is connected to the end of the sub-frame cross member 21 and is located on the outer side of the main longitudinal beam 1 of the nacelle along the vehicle width direction, and the front end beam 4 extends from the sub-frame reinforcement 5 to the upper side along the vehicle length direction. End of stringer 6.

In the vehicle cabin assembly, due to the arrangement of the front end beam 4 and the subframe reinforcement 5, when a small offset collision occurs, it can effectively support and avoid obstacles, and transmit the collision force to the subframe reinforcement 5 and the front end beam 4. In the rear of the rear cabin, the transmission path of the collision force has been improved.

Please also refer to FIG. 3 , when viewed from the top of the vehicle, the subframe reinforcement 5 has a triangular structure. Through the triangular structure, when a small offset collision occurs, it can effectively support and avoid obstacles and improve the collision transmission path.

Viewed from the top of the vehicle, the end of the front end beam 4 connected to the subframe reinforcement 5 is arc-shaped. By setting the front end beam 4 in an arc shape, when the front nacelle of the vehicle is subjected to an offset collision, the impact force received can be decomposed along the tangential direction of the front end beam 4, and the body can be slipped in the tangential direction of the circular arc, The collision damage to the passenger compartment is effectively reduced. At the same time, the curved front end beam 4 can be crushed under force, and the rear end connector 42 supports the front end curved beam 41, thereby effectively reducing the collision damage to the passenger compartment. Specifically, the end of the front end beam 4 connected to the subframe reinforcement 5 is arc-shaped. Specifically, when viewed from above the vehicle, the front end beam 4 is arched toward the vehicle outer side to form a curved structure.

There are two main longitudinal beams 1 of the nacelle, which are respectively disposed on two opposite sides of the vehicle nacelle assembly along the width direction of the vehicle, and extend along the length direction of the vehicle.

The subframe 2 includes two lower longitudinal beams 22 , one end of the two lower longitudinal beams 22 is respectively connected to the two ends of the subframe transverse beam 21 , and the two lower longitudinal beams 22 are located inside the two cabin main longitudinal beams 1 .

Along the vehicle width direction, the two connecting plates 3 are respectively arranged adjacent to the two sub-frame reinforcements 5, and are located inside the sub-frame reinforcement 5, and along the vehicle length direction, the connection plates 3 are also located on the sub-frame reinforcement 5. 5 on the front side. In this way, when a small offset collision occurs, the obstacle collides with the subframe reinforcement 5 instead of the connecting plate 3 .

Viewed from the side of the vehicle, the front end beam 4 has an arc shape. Specifically, please refer to FIG. 2 at the same time, the front end beam 4 includes a front end curved beam 41 and a rear end connector 42, and the rear end connector 42 is attached and connected to the end of the upper longitudinal beam 6 to connect the front end curved beam 41 to the upper longitudinal beam. 6 are connected into one body and play a supporting role for the front curved beam 41 . More specifically, when viewed from the side of the vehicle, the front end beam 4 is arched toward the lower side of the vehicle to form a curved structure.

Viewed from the side of the vehicle, the front end beam 4 is located between the lower side member 22 and the upper side member 6 , and the subframe reinforcement 5 is located above the subframe cross member 21 .

The subframe reinforcement 5 is a triangular prism frame structure, one side of the subframe reinforcement 5 is connected to the main longitudinal beam 1 of the nacelle, and one end surface of the subframe reinforcement 5 is connected to the subframe beam 21 . The reinforcements of the subframe 5 are triangular prisms, which can ensure that the collision energy is absorbed when the vehicle is collided, and the energy is transmitted to the front end beam 4 connected to it, and supports the subframe 2 to alleviate the frontal collision force. The surface of the subframe reinforcement 5 relative to the front of the vehicle is a quadrilateral connecting surface, which is beneficial to bear the frontal impact and load.

There are two upper longitudinal beams 6 , which are respectively disposed on both sides of the vehicle width direction, and one end of the upper longitudinal beam 6 connected to the connecting plate 3 is arc-shaped, and the upper longitudinal beam 6 is located above the front end beam 4 .

As shown in FIG. 3 , when the front part of the vehicle is collided, the front crash beam transmits the collision force to the upper longitudinal beam 6 and the lower longitudinal beam 22 , and the front ends of the upper longitudinal beam 6 and the lower longitudinal beam 22 are mainly crushed and deformed. absorb collision energy. A front anti-collision beam and an energy-absorbing box are connected in front of the connecting plate 3 to absorb the energy of a frontal collision. In addition, in the event of a small offset collision, the sub-frame reinforcement 5 can effectively support and avoid obstacles, and transmit the collision force to the rear of the nacelle by the sub-frame reinforcement 5 and the front end beam 4, improving the transmission path of the collision force; The frame reinforcement 5 transmits the collision force to the front anti-collision beam 4 through the arc structure of the front end of the front end beam 4 and the sub-frame reinforcement 5 to decompose the collision force, effectively reducing the intrusion damage of the passenger compartment and protecting the passengers. Safety.

The above disclosures are only preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims (9)

1. A vehicle cabin assembly is characterized by comprising a main longitudinal beam (1) of a cabin, an auxiliary frame (2), a connecting plate (3), a front end beam (4), an auxiliary frame reinforcing piece (5) and an upper longitudinal beam (6), the auxiliary frame (2) comprises an auxiliary frame cross beam (21) and a lower longitudinal beam (22) connected with the auxiliary frame cross beam (21), the connecting plate (3) is connected to the auxiliary frame cross beam (21), the cabin main longitudinal beam (1) and the upper longitudinal beam (6) extend along the length direction of the vehicle, one end of the auxiliary frame reinforcing piece is connected with the connecting plate (3), the auxiliary frame reinforcing piece (5) is connected with the two ends of the auxiliary frame cross beam (21) and the outer side surface of the engine room main longitudinal beam (1) along the width direction of the vehicle, the front end beam (4) extends from the auxiliary frame reinforcement (5) in the vehicle length direction and is connected to the tail end of the upper longitudinal beam (6); along vehicle width direction, two connecting plate (3) respectively with two sub vehicle frame reinforcement (5) adjacent the setting, and are located the inboard of sub vehicle frame reinforcement (5), along vehicle length direction, every connecting plate (3) still are located the correspondence the front side of sub vehicle frame reinforcement (5).

2. Vehicle cabin assembly according to claim 1, characterised in that the subframe reinforcement (5) is of triangular configuration, seen from above the vehicle.

3. Vehicle cabin assembly according to claim 2, characterised in that the subframe reinforcement (5) is of triangular prism frame construction, one side face of the subframe reinforcement (5) being connected to the cabin main longitudinal beam (1) and one end face of the subframe reinforcement (5) being connected to the subframe cross beam (21).

4. The vehicle cabin assembly according to claim 1, wherein an end of the front end beam (4) connected to the sub-frame reinforcement (5) is curved when viewed from above the vehicle.

5. Vehicle cabin assembly according to claim 4, characterised in that the front end beam (4) is arched towards the outside of the vehicle, seen from above the vehicle, forming a curved structure.

6. Vehicle cabin assembly according to claim 4 or 5, characterised in that the front end beam (4) is curved, seen from the side of the vehicle; the front end beam (4) comprises a front end bent beam (41) and a rear end connecting piece (42), and the rear end connecting piece (42) is attached to the tail end of the upper longitudinal beam (6).

7. The vehicle cabin assembly according to claim 1, wherein the number of the cabin main longitudinal beams (1) is two, and the two main longitudinal beams are respectively arranged on two opposite sides of the vehicle cabin assembly along the width direction of the vehicle; the auxiliary frame (2) comprises two lower longitudinal beams (22), one ends of the two lower longitudinal beams (22) are connected to two ends of an auxiliary frame cross beam (21) respectively, and the two lower longitudinal beams (22) are located on the inner sides of the cabin main longitudinal beams (1).

8. Vehicle cabin assembly according to claim 6, wherein the front end beam (4) is located between the side sill (22) and the upper side beam (6) and the subframe reinforcement (5) is located above the subframe cross member (21) as seen from the vehicle side.

9. The vehicle cabin assembly of claim 8, wherein the number of the upper longitudinal beams (6) is two, the two upper longitudinal beams are respectively arranged on two sides in the width direction of the vehicle, one end of each upper longitudinal beam (6) connected with the connecting plate (3) is arc-shaped, and the upper longitudinal beams (6) are positioned above the front end beam (4).

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