CN114932876A - Novel structure of automobile front energy absorption box - Google Patents

Abstract

The invention relates to the field of automobile structure design, in particular to a novel structure of an automobile front energy-absorbing box. A new structure of the front energy-absorbing box of an automobile is characterized in that it comprises an outer wall of a rectangular energy-absorbing box and a cross-shaped energy-absorbing box reinforcing rib. glyph structure. At the same time, the present invention adopts the "field-shaped" structure, so that the front energy-absorbing box of the automobile has the largest energy absorption and the smallest peak value of the collision force, and at the same time, the excessive number of reinforcing ribs is avoided, and the front energy-absorbing box of the automobile can be divided into two parts. Four chambers are used to produce wrinkle deformation when the front energy-absorbing box of the car is deformed. The front energy-absorbing box of the car is designed as a snap-on structure for quick disassembly and replacement after the vehicle collides.

Description

A new structure of automobile front energy-absorbing box

technical field

The invention relates to the field of automobile structure design, in particular to a novel structure of an automobile front energy-absorbing box.

Background technique

At this stage, the car energy-absorbing box is already one of the bumper components of most passenger cars, and plays an important role in the operation of the car. The dynamic analysis of the energy-absorbing box is also a crucial step in the design of the front energy-absorbing box of the automobile. The existing hollow structure of the four-panel body of the energy-absorbing box has the problem that the structure can absorb the energy during the collision. A certain amount of collision energy, but due to the simple structure, the overall structure enters the plastic deformation stage almost at the same time when the collision occurs, so the energy absorption is relatively low and the energy absorption capacity is wasted seriously. The compression deformation is unstable and the collision force is too large, which will reduce the effect of the energy-absorbing box.

Under normal circumstances, the crushing energy absorption process is a simple linear change, and the protection ability for complex collisions, secondary collisions and other collision processes is obviously insufficient. Therefore, it is urgent to provide a new structure of the front energy absorption box of the automobile, which not only has moderate strength and light weight. , easy to form and other characteristics, and at the same time use the lightweight design of the car to improve the energy absorption capacity, thereby improving the protection ability of complex collisions and secondary collisions.

SUMMARY OF THE INVENTION

In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a novel structure of the front energy-absorbing box of an automobile.

In order to achieve the above purpose, the present invention provides the following technical solutions: a novel structure of an automobile front energy-absorbing box, which is characterized in that it comprises an outer wall of a rectangular energy-absorbing box and a cross-energy-absorbing box reinforcing rib, and the cross-energy-absorbing box reinforcing rib is welded. Inside the outer wall of the rectangular energy-absorbing box.

Preferably, the outer wall of the rectangular energy-absorbing box is divided into a left side 2, a right side 3, an upper top surface 1 and a lower bottom surface 4, wherein the upper bottom surface 1 and the lower bottom surface 4 are provided as a slot-type protruding structure 7, The slot-type protruding structure 7 can be matched and clamped with the corresponding groove on the vehicle-mounted structure.

Preferably, the front energy-absorbing box of the automobile is made of aluminum alloy.

Preferably, the outer wall thickness of the rectangular energy-absorbing box is 1.5-2.5 mm, and the wall thickness of the reinforcing rib of the cross energy-absorbing box is 1.8-2.8 mm.

Preferably, the upper top surface 1 and the left side surface 2, the lower bottom surface 4 and the left side surface 2, the upper top surface 1 and the right side surface 3, and the lower bottom surface 4 and the left side surface 2 are provided with screw links. hole.

Preferably, the cross energy absorbing box reinforcing rib is divided into a cross energy absorbing box transverse reinforcing rib 6 and a cross energy absorbing box longitudinal reinforcing rib 5 .

Preferably, the transverse reinforcing ribs 6 of the cross energy-absorbing box are welded to the midline of the left side and the right side of the rectangular energy-absorbing box, and the longitudinal reinforcing ribs 5 of the cross energy-absorbing box are welded to the top surface of the rectangular energy-absorbing box. with the lower ground midline position,

Preferably, the new structure of the front energy-absorbing box of the automobile is located at both ends of the front longitudinal beam of the automobile.

Preferably, the protruding structure 7 of the front energy absorbing box of the automobile is 14-15 cm long, 5-6 cm wide, and 1.5-2.5 mm thick.

Preferably, the outer wall of the rectangular energy absorbing box adopts an integral molding structure.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The present invention adopts a "field-shaped" structure, so that the front energy-absorbing box of the automobile has the largest energy absorption and the smallest peak value of the collision force, and at the same time, the excessive number of reinforcing ribs is avoided, and the front energy-absorbing box of the automobile can be divided into The four chambers are used to generate fold deformation when the front energy-absorbing box of the car is deformed by energy absorption.

2. The front energy-absorbing box of the car is designed as a snap-on structure, which is used for quick disassembly and replacement after the collision of the vehicle.

Description of drawings

Fig. 1 is an overall view of a novel structure of the front energy-absorbing box of an automobile according to the present invention

FIG. 2 is a drawing of the wall thickness of a new structure of the front energy-absorbing box of an automobile according to the present invention.

In the figure: 1. Upper top surface; 2. Left side; 3. Right side; 4. Lower bottom surface; 5. Longitudinal reinforcement of cross energy-absorbing box; protruding structure.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-2, the present invention provides a technical solution: a new structure of the front energy-absorbing box of an automobile, which is characterized in that it includes the outer wall of the rectangular energy-absorbing box and the reinforcing rib of the cross energy-absorbing box. Welded inside the outer wall of the rectangular energy-absorbing box.

The outer wall of the rectangular energy-absorbing box is divided into a left side 2, a right side 3, an upper top surface 1 and a lower bottom surface 4, wherein the upper bottom surface 1 and the lower bottom surface 4 are provided with a slot-type protruding structure 7, and the slot-type protruding structure 7 can be matched and snapped with the corresponding grooves on the vehicle-mounted structure.

The front energy-absorbing box of the car is made of aluminum alloy.

The outer wall thickness of the rectangular energy-absorbing box is 1.5-2.5mm, and the wall thickness of the reinforcing rib of the cross energy-absorbing box is 1.8-2.8mm.

The upper top surface 1 and the left side surface 2, the lower bottom surface 4 and the left side surface 2, the upper top surface 1 and the right side surface 3, and the lower bottom surface 4 and the left side surface 2 are provided with screw connection holes.

The cross energy-absorbing box reinforcing rib is divided into a cross energy-absorbing box transverse reinforcing rib 6 and a cross energy-absorbing box longitudinal reinforcing rib 5 .

The transverse reinforcement ribs 6 of the cross energy absorption box are welded to the midline positions of the left side and the right side of the rectangular energy absorption box, and the longitudinal reinforcement ribs 5 of the cross energy absorption box are welded to the upper top surface of the rectangular energy absorption box and the midline position of the lower ground.

The new structure of the car's front energy-absorbing box is located at both ends of the car's front longitudinal beam.

The size of the protruding structure 7 of the front energy-absorbing box of the automobile is 14-15cm in length, 5-6cm in width, and 1.5-2.5mm in thickness.

The outer wall of the rectangular energy-absorbing box adopts an integral molding structure.

The working principle is that the automobile energy-absorbing box is used to resist the impact and absorb a part of the impact energy when the automobile collides. The reinforcing rib is connected with the anti-collision beam and the front longitudinal beam of the automobile through welding, and the plastic deformation of the metal under the action of the impact force is used to produce crushing, and the internal energy is converted into deformation energy, thereby absorbing a part of the automobile. kinetic energy at collision.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A novel structure of an energy-absorbing box in front of an automobile is characterized in that, comprising a rectangular energy-absorbing box outer wall and a cross energy-absorbing box reinforcing rib, and the cross-energy-absorbing box reinforcing rib is welded inside the rectangular energy-absorbing box outer wall. 2. The novel structure of an automobile front energy-absorbing box according to claim 1, wherein the outer wall of the rectangular energy-absorbing box is divided into a left side (2), a right side (3), and an upper top surface. (1) and the lower bottom surface (4), wherein the upper bottom surface (1) and the lower bottom surface (4) are provided with a slot-type protruding structure (7), and the slot-type protruding structure (7) can be mounted on the corresponding vehicle-mounted structure The groove matches the snap connection. 3 . The novel structure of the front energy-absorbing box of an automobile according to claim 1 , wherein the front energy-absorbing box of the automobile is made of aluminum alloy. 4 . 4. The novel structure of a front energy-absorbing box of an automobile according to claim 1, wherein the outer wall thickness of the rectangular energy-absorbing box is 1.5-2.5 mm, and the wall thickness of the reinforcing rib of the cross energy-absorbing box is 1.8-2.8 mm. mm. 5. The novel structure of a front energy-absorbing box for automobiles according to claim 2, characterized in that: the upper top surface (1) and the left side (2), the lower bottom surface (4) and the left side ( 2), the upper top surface (1) and the right side surface (3), and the lower bottom surface (4) and the left side surface (2) are bent with screw connection holes. 6. The novel structure of the front energy-absorbing box of an automobile according to claim 2, characterized in that: the cross-energy-absorbing box reinforcing rib is divided into a cross-energy-absorbing box transverse reinforcing rib (6) and a cross-energy-absorbing box longitudinal reinforcing rib (5). 7. The novel structure of the front energy-absorbing box of an automobile according to claim 1, characterized in that, the transverse reinforcing rib (6) of the cross energy-absorbing box is welded to the centerline position of the left side and the right side of the rectangular energy-absorbing box, The longitudinal reinforcing rib (5) of the cross energy-absorbing box is welded to the upper top surface of the rectangular energy-absorbing box and the midline of the lower ground. 8 . The novel structure of the front energy-absorbing box of an automobile according to claim 1 , wherein the novel structure of the front energy-absorbing box of the automobile is located at both ends of the front longitudinal beam of the automobile. 9 . 9. The novel structure of the front energy-absorbing box of an automobile according to claim 1 is characterized in that: the protruding structure (7) of the front energy-absorbing box of the automobile is 14cm-15cm long, 5-6cm wide, and has a thickness of 14cm-15cm. 1.5-2.5mm. 10 . The novel structure of the front energy-absorbing box of an automobile according to claim 1 , wherein the outer wall of the rectangular energy-absorbing box adopts an integral molding structure. 11 .

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