Vehicle anti-collision structure

Abstract

The utility model provides a vehicle anti-collision structure which is characterized in that a mounting seat is located in front of a front longitudinal beam and an upper longitudinal beam, an anti-collision beam is fixedly connected with the mounting seat through an energy absorption box, reinforcing beams which are arranged in parallel at intervals are arranged below the anti-collision beam, and the reinforcing beams are connected with an automobile auxiliary frame through connecting pipes. During collision, the front longitudinal beam, the upper longitudinal beam and the automobile auxiliary frame can transmit collision external force, energy transmitted by the anti-collision beam is fully absorbed, and the structural integrity of a passenger compartment in the collision process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle anti-collision structures, in particular to a vehicle anti-collision structure. Background Art

[0002] At present, anti-collision beams are commonly installed in various vehicles, mainly to prevent external objects from causing a large impact on the vehicle and protect the safety of the passengers inside. When a car collides, the anti-collision beam deforms and absorbs the collision energy to reduce the damage caused by the collision. As an important component of the car's passive safety system, the performance of the anti-collision beam is directly related to the driver's safety.

[0003] For example, the title “Anti-collision beam and its assembly” (document number: CN111959422A) discloses an anti-collision beam assembly, which includes an anti-collision beam, a first energy absorption box and a second energy absorption box. The anti-collision beam includes a left beam and a right beam, the left beam is fixedly connected to the right beam, the first energy absorption box is installed on the left beam, and the second energy absorption box is installed on the right beam. The above scheme is a traditional anti-collision beam, that is, only an energy absorption unit is arranged in front of the front longitudinal beam of the vehicle, and the integrity of the front longitudinal beam is protected by the deformation and energy absorption of the energy absorption unit, and it does not contribute to the improvement of the anti-collision strength of the front longitudinal beam. Once the collision impact is too large, the energy absorption box still has a collision impact applied to the front longitudinal beam after energy absorption and deformation, resulting in the inability to maintain the integrity of the front longitudinal beam, and the accident of cabin deformation cannot be avoided, and severe deformation of the A-pillar will result.

[0004] The patent entitled “A Vehicle Anti-Collision Component” (patent number: CN 113276792 A) discloses a mounting seat installed on a longitudinal beam and a protective beam located in front of the mounting seat, wherein the protective beam is located below the anti-collision beam, and the bracket is clamped between the protective beam and the mounting seat. The anti-collision beam and the protective beam are both arranged in front of the mounting seat on the longitudinal beam. The collision energy received by the anti-collision beam and the protective beam is transmitted through the mounting seat and the longitudinal beam, and the energy generated by the car collision is limited. Utility Model Content

[0005] The utility model provides a vehicle anti-collision structure, which aims to fully absorb the energy generated during the collision and ensure the structural integrity of the passenger compartment during the collision.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A vehicle anti-collision structure comprises a mounting seat arranged on a front longitudinal beam and an upper longitudinal beam, an anti-collision beam arranged along the vehicle width direction is arranged in front of the mounting seat, the anti-collision beam and the mounting seat are fixedly connected through an energy absorption box, and a reinforcing beam arranged in parallel and at intervals is arranged below the anti-collision beam, and the reinforcing beam is connected to the vehicle subframe through a connecting pipe.

[0008] In the above scheme, the mounting seat is located in front of the front longitudinal beam and the upper longitudinal beam, the anti-collision beam and the mounting seat are fixedly connected through an energy absorption box, and a reinforcing beam arranged in parallel and spaced apart is provided under the anti-collision beam. The reinforcing beam is connected to the automobile subframe through a connecting pipe. In the event of a collision, the front longitudinal beam, the upper longitudinal beam, and the automobile subframe can transmit the external force of the collision, fully absorb the energy transmitted by the anti-collision beam, and ensure the structural integrity of the passenger compartment during the collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a side view of the utility model;

[0010] Figure 2 It is a stereogram of the utility model. DETAILED DESCRIPTION

[0011] like Figures 1-2 A vehicle anti-collision structure shown in the figure includes a mounting seat 30 arranged on a front longitudinal beam 10 and an upper longitudinal beam 20, an anti-collision beam 40 arranged along the vehicle width direction is provided in front of the mounting seat 30, the anti-collision beam 40 and the mounting seat 30 are fixedly connected through an energy absorption box 50, and a reinforcing beam 60 arranged in parallel and at intervals is provided below the anti-collision beam 40, and the reinforcing beam 60 is connected to the vehicle subframe 70 through a connecting pipe 80.

[0012] In the above scheme, the mounting seat 30 is located in front of the front longitudinal beam 10 and the upper longitudinal beam 20, the anti-collision beam 40 is fixedly connected to the mounting seat 30 through the energy absorption box 50, and a reinforcing beam 60 arranged in parallel and spaced apart is provided below the anti-collision beam 40, and the reinforcing beam 60 is connected to the automobile subframe 70 through a connecting pipe 80. In the front cabin, the three-layer path of the front longitudinal beam 10, the upper longitudinal beam 20 and the connecting pipe 80 can better transmit the collision force and decompose the energy, so as to achieve the purpose of reducing the intrusion of the front fender. At the same time, the anti-collision beam 40 and the reinforcing beam 60 are arranged in parallel and spaced apart above and below, and the positions at which the front ends of the anti-collision beam 40 and the reinforcing beam 60 extend are almost the same, that is to say, the reinforcing beam 60 can be almost arranged in the same position as the anti-collision beam 40 in the direction of the vehicle length, and can contact the collision object at the first moment of the collision. The three-layer path in the front cabin transmits the collision force and absorbs the energy at the same time, so as to ensure the structural integrity of the passenger cabin during the collision.

[0013] The preferred energy absorption box 50 includes a front anti-collision beam outer energy absorption box 51 and a front anti-collision beam inner energy absorption box 52, the rear end of the front anti-collision beam outer energy absorption box 51 is fixedly connected to the mounting seat 30 at the upper longitudinal beam 20, and the rear end of the front anti-collision beam inner energy absorption box 52 is fixedly connected to the mounting seat 30 at the front longitudinal beam 10. In the above scheme, the front anti-collision beam outer energy absorption box 51 corresponding to the upper longitudinal beam 20 and the front anti-collision beam inner energy absorption box 52 corresponding to the front longitudinal beam 10 are arranged on the mounting seat 30, so as to ensure that the front anti-collision beam outer energy absorption box 51 and the front anti-collision beam inner energy absorption box 52 can simultaneously transmit the collision force and absorb energy, thereby ensuring the structural integrity of the passenger compartment during the collision process.

[0014] Furthermore, the front end of the connecting tube 80 is fixedly connected to the reinforcing beam 60, and the rear end of the connecting tube 80 is detachably connected to the automobile subframe 70. The automobile subframe 70 is an important independent component, and a detachable connection scheme is adopted between the automobile subframe 70 and the connecting tube 80, which is conducive to the assembly of various components.

[0015] The preferred connecting tube 80 is provided with a column 81 fixedly connected to the front end of the front longitudinal beam 10. The column 81 is fixedly connected to the front longitudinal beam 10 to form a square frame. When the bending moment in the longitudinal plumb plane caused by the collision load acts, the frame composed of the connecting tube 80, the mounting seat 30, and the front longitudinal beam 10 frame has a strong bending resistance.

[0016] Furthermore, a lower energy absorption box 82 is provided at the front end of the connecting pipe 80 , and the lower energy absorption box 82 is connected to the reinforcing beam 60 .

[0017] In the above scheme, the lower energy absorption box 82, the front anti-collision beam outer energy absorption box 51 and the front anti-collision beam inner energy absorption box 52 form a three-way energy absorption, which can better transmit the collision force and decompose the energy through the three-layer path in the front cabin, thereby achieving the purpose of reducing the intrusion of the front fender.

[0018] Furthermore, the connecting tube 80 is a tubular structure with a circular, elliptical or square-shaped cross section, and the connecting tube 80 is straight as a whole with a curved transition section in the middle. By designing the path of the connecting tube 80, the force can be optimized to ensure the energy absorption and collapse path of the connecting tube 80.

Claims

1. A vehicle anti-collision structure, characterized in that: The invention comprises a mounting seat (30) arranged on a front longitudinal beam (10) and an upper longitudinal beam (20); an anti-collision beam (40) arranged along the vehicle width direction is arranged in front of the mounting seat (30); the anti-collision beam (40) and the mounting seat (30) are fixedly connected via an energy absorption box (50); a reinforcing beam (60) arranged in parallel and at intervals is arranged below the anti-collision beam (40); the reinforcing beam (60) is connected to a vehicle subframe (70) via a connecting pipe (80).

2. The vehicle anti-collision structure according to claim 1, characterized in that: The energy absorption box (50) comprises an outer energy absorption box (51) of the front anti-collision beam and an inner energy absorption box (52) of the front anti-collision beam, wherein the rear end of the outer energy absorption box (51) of the front anti-collision beam is fixedly connected to a mounting seat (30) at the upper longitudinal beam (20), and the rear end of the inner energy absorption box (52) of the front anti-collision beam is fixedly connected to the mounting seat (30) at the front longitudinal beam (10).

3. The vehicle anti-collision structure according to claim 1, characterized in that: The front end of the connecting pipe (80) is fixedly connected to the reinforcing beam (60), and the rear end of the connecting pipe (80) is detachably fixedly connected to the automobile auxiliary frame (70).

4. The vehicle anti-collision structure according to claim 3, characterized in that: The connecting pipe (80) is provided with a column (81) fixedly connected to the front end of the front longitudinal beam (10).

5. The vehicle anti-collision structure according to claim 4, characterized in that: A lower energy absorption box (82) is provided at the front end of the connecting pipe (80), and the lower energy absorption box (82) is connected to the reinforcing beam (60).

6. The vehicle anti-collision structure according to claim 3, 4 or 5, characterized in that: The connecting tube (80) is a tubular structure and the cross section of the tube cavity is a circular, elliptical or square-circular profile. The connecting tube (80) is straight as a whole and the middle part is a bent and extended transition section.

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