CN112622796A

CN112622796A - New-type cavity car anticollision roof beam energy-absorbing box

Info

Publication number: CN112622796A
Application number: CN202011435213.9A
Authority: CN
Inventors: 蒋世宾
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-04-09

Abstract

The invention discloses a novel cavity automobile anti-collision beam energy absorption box, which belongs to the field of automobile anti-collision beam energy absorption boxes and comprises an energy absorption box main body, an energy absorption box cavity, functional reinforcing ribs, main positioning holes and auxiliary positioning holes, wherein the energy absorption box main body is in a cuboid shape and is formed by adopting aluminum alloy extrusion forming, the energy absorption box main body is formed by longitudinally and rigidly connecting three cavities, the upper side and the lower side of the energy absorption box main body are respectively provided with one functional reinforcing rib, the functional reinforcing ribs are arranged at the central points of the sides and play a role of structural reinforcement in a normal state, the energy absorption box main body is bent from the functional reinforcing ribs to absorb impact force when collision occurs, the main positioning holes and the auxiliary positioning holes are arranged on the upper top surface of the energy absorption box main body, the auxiliary positioning holes are slotted holes and are used for adjusting positioning errors, compared with the traditional anti-collision beam energy absorption box, and meanwhile, a new material and a new process are used, so that the novel anti-collision beam energy absorption box is a novel form.

Description

New-type cavity car anticollision roof beam energy-absorbing box

Technical Field

The invention relates to the field of automobile anti-collision beam energy absorption boxes, in particular to a novel cavity automobile anti-collision beam energy absorption box.

Background

The main body and the energy absorption box can effectively absorb the collision energy when the vehicle collides at low speed, and the damage of the impact force to the vehicle body longitudinal beam is reduced as much as possible, so that the vehicle is protected.

The automobile anti-collision beam is divided into a front anti-collision beam and a rear anti-collision beam and a door anti-collision beam, the two types of the front anti-collision beam and the rear anti-collision beam and the door anti-collision beam are adopted in the initial development stage, the steel structure design is adopted, the weight is high, the structure is complex, the forming is difficult, the modern industrial technology is continuously promoted, along with the more mature automobile design, the anti-collision beam energy absorption box becomes an indispensable part in an anti-collision beam assembly, the traditional automobile is continuously advanced to the field of new energy automobiles nowadays, the trend of energy conservation and emission reduction becomes inevitable, the lightweight design also becomes mainstream, the application of new materials and new processes is carried out, the aluminum alloy material replaces steel, the integrated forming replaces multi-structure welding, the refinement is benefited, the structural design is further optimized through the.

The energy absorption box of the anti-collision beam is used as a impacted device behind the anti-collision beam, not only has certain structural strength in normal use, but also has selective purposeful bending deformation in the impacted process, so that the characteristic of absorbing energy by a metal material is exerted to the maximum. Along with the continuous improvement of automobile body engineers' design level and the deepening of new material understanding, the structural form of the anti-collision beam energy absorption box is continuously optimized, the design concept that steel materials are added with reinforcing ribs is thoroughly subverted, a novel cavity aluminum alloy material is adopted for design, breakthroughs are made in the structural form and the forming process, the weight and the volume of the anti-collision beam energy absorption box are reduced, meanwhile, the mechanical performance is not reduced, the large application of aluminum alloy in future automobile development also becomes a necessary trend, the weight and the production cost of the whole automobile can be effectively reduced, and the power is contributed to energy conservation and emission reduction.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a novel cavity automobile anti-collision beam energy absorption box, the anti-collision beam energy absorption box is made of a cavity aluminum alloy material, only one reinforcing rib is designed on each bent edge, insufficient structural strength is reinforced by each vertical face of a cavity, the design can more accurately position the bending position of the energy absorption box when being hit, the whole collision process is more precise and controllable, meanwhile, the application of the cavity aluminum alloy material effectively reduces the structural complexity of the traditional anti-collision beam energy absorption box, reduces the forming process and reduces the overall weight, and the novel cavity automobile anti-collision beam energy absorption box is a novel design concept.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A novel cavity automobile anti-collision beam energy absorption box comprises an energy absorption box main body, wherein the energy absorption box main body is provided with an upper plane, the upper plane is provided with a main positioning hole and an auxiliary positioning hole, the auxiliary positioning hole is a long and narrow hole, the energy absorption box main body is provided with a lower plane, four bent edges of the energy absorption box main body are provided with functional reinforcing ribs, the functional reinforcing ribs are arranged at the middle points of the edges, the upper part of the energy absorption box main body is provided with an upper cavity, the upper plane of the upper cavity and the upper plane of the energy absorption box main body are the same plane, the lower end of the upper cavity is tightly connected with a middle cavity, the lower plane of the upper cavity and the upper plane of the middle cavity are the same plane, the lower plane of the middle cavity is tightly connected with the lower cavity, and;

the width of the upper cavity is the same as that of the middle cavity, the width of the middle cavity is the same as that of the lower cavity, the upper cavity is connected with the side wall of the middle cavity, the curvature of the upper cavity is continuous, and the middle cavity is connected with the side wall of the lower cavity, and the curvature of the middle cavity is continuous.

Furthermore, the energy absorption box main body is made of 6063T6 aluminum alloy material, and the thickness of the material is 3 mm.

Furthermore, the reinforcing ribs are triangular reinforcing ribs.

Further, there is the draft chamfer between last cavity lateral wall and the last cavity lower plane, there is the draft chamfer on well cavity lateral wall and the last plane of well cavity, there is the draft chamfer on well cavity lateral wall and the well cavity lower plane, there is the draft chamfer on lower cavity lateral wall and the lower cavity upper plane.

Furthermore, the side wall of the upper cavity and the upper plane are provided with chamfers, and the side wall of the lower cavity and the lower plane are provided with chamfers.

Further, the outer radius of the chamfer is 6 mm.

Further, the radius of the drawing chamfer is 3 mm.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme application cavity aluminum alloy material designs for the main part, compares that traditional steel anticollision roof beam energy-absorbing box structure is simpler and more convenient, the forming process is simpler, weight is lighter.

(2) The whole cube structure that is of this scheme, simplified the strengthening rib design than current crashproof roof beam energy-absorbing box, only respectively design a triangle-shaped functional strengthening rib in four limit central points of bending department, adopt each facade of cavity to complement the structural strength of disappearance simultaneously, this kind of design more accurate location the energy-absorbing box receives the hit position of bending, make whole striking process meticulous controllable more.

(3) The structural style that three cavities equal width vertically arranged has been confirmed through CAE analog simulation calculation to this scheme, and the advantage of this kind of structure lies in that the design is simple, the shaping is convenient and structural strength is high, and every cavity has two horizontal facades from top to bottom, has effectively strengthened the intensity that lacks after reducing the strengthening rib.

(4) This scheme is with the design of installation locating hole at last plane, and the frock clamp when making the welding is easier to operate, designs into the circular port with main locating hole simultaneously to carry out the accurate positioning, assist the locating hole and design into the narrow and long hole and carry out assistance-localization real-time, thereby the error that produces when the adjustment installation.

Drawings

FIG. 1 is a front isometric view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a rear isometric view of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is a bottom view of the present invention;

the reference numbers in the figures illustrate:

the energy absorption box comprises an energy absorption box body 1, an upper plane 2, reinforcing ribs 3, main positioning holes 4, auxiliary positioning holes 5, an upper cavity 6, a middle cavity 7, a lower cavity 8, a pattern drawing chamfer 9, a chamfer 10 and a lower plane 11.

Detailed Description

The technical solution 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; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1, a novel cavity automobile anti-collision beam energy absorption box comprises an energy absorption box main body, wherein the energy absorption box main body is provided with an upper plane, the upper plane is provided with a main positioning hole and an auxiliary positioning hole, the auxiliary positioning hole is a long and narrow hole, the energy absorption box main body is provided with a lower plane, four bent edges of the energy absorption box main body are provided with functional reinforcing ribs, the functional reinforcing ribs are arranged at the middle points of the edges, an upper cavity is arranged at the upper part of the energy absorption box main body, the upper plane of the upper cavity and the upper plane of the energy absorption box main body are the same plane, the lower end of the upper cavity is tightly connected with a middle cavity, the lower plane of the upper cavity and the upper plane of the middle cavity are the same plane, the lower end of the middle cavity is tightly connected with the lower cavity;

go up the cavity and the same with well cavity width, well cavity is the same with cavity width down, go up the cavity with well cavity lateral wall links to each other and the camber is continuous, well cavity links to each other and the camber is continuous with lower cavity lateral wall, the energy-absorbing box main part adopts 6063T6 aluminum alloy material, and material thickness is 3mm, the strengthening rib is the triangle-shaped strengthening rib.

Referring to fig. 1, 2 and 3, a draft chamfer is arranged between the side wall of the upper cavity and the lower plane of the upper cavity, a draft chamfer is arranged between the side wall of the middle cavity and the upper plane of the middle cavity, a draft chamfer is arranged between the side wall of the middle cavity and the lower plane of the middle cavity, a draft chamfer is arranged between the side wall of the lower cavity and the upper plane of the lower cavity, a chamfer is arranged between the side wall of the upper cavity and the upper plane, a chamfer is arranged between the side wall of the lower cavity and the lower plane, the outer radius of the chamfer is 6mm, and the radius of the draft chamfer is 3 mm.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a new-type cavity car anticollision roof beam energy-absorbing box, includes energy-absorbing box main part (1), its characterized in that: the energy absorption box main body (1) is provided with an upper plane (2), the upper plane (2) is provided with a main positioning hole (4), the upper plane (2) is provided with an auxiliary positioning hole (5), the auxiliary positioning hole (5) is a slot, the energy absorption box main body (1) is provided with a lower plane (11), functional reinforcing ribs (3) are arranged on four bent edges of the energy absorption box main body (1), the functional reinforcing rib (3) is arranged at the middle point of the edge, an upper cavity (6) is arranged at the upper part of the energy absorption box main body (1), the upper plane of the upper cavity (6) and the upper plane (2) of the energy absorption box main body (1) are the same plane, the lower end of the upper cavity (6) is tightly connected with the middle cavity (7), the lower plane of the upper cavity (6) and the upper plane of the middle cavity (7) are the same plane, the lower end of the middle cavity (7) is tightly connected with the lower cavity (8), and the lower plane of the middle cavity (7) and the upper plane of the lower cavity (8) are the same plane;

the width of the upper cavity (6) is the same as that of the middle cavity (7), the width of the middle cavity (7) is the same as that of the lower cavity (8), the upper cavity (6) is connected with the side wall of the middle cavity (7) and has continuous curvature, and the side wall of the middle cavity (7) is connected with the side wall of the lower cavity (8) and has continuous curvature.

2. The novel cavity automobile anti-collision beam energy absorption box according to claim 1, characterized in that: the energy absorption box main body (1) adopts 6063T6 aluminum alloy material, and material thickness is 3 mm.

3. The novel cavity automobile anti-collision beam energy absorption box according to claim 1, characterized in that: the functional reinforcing ribs are triangular reinforcing ribs.

4. The novel cavity automobile anti-collision beam energy absorption box according to claim 1, characterized in that: it has draft chamfer (9) to go up between cavity (6) lateral wall and last cavity (6) lower plane, well cavity (7) lateral wall has draft chamfer (9) with the last plane of well cavity (7), well cavity (7) lateral wall has draft chamfer (9) with well cavity (7) lower plane, cavity (8) lateral wall has draft chamfer (9) with lower cavity (8) upper plane down.

5. The novel cavity automobile anti-collision beam energy absorption box according to claim 1, characterized in that: the side wall of the upper cavity (6) and the upper plane (2) are provided with chamfers (10), and the side wall of the lower cavity (8) and the lower plane (11) are provided with chamfers (10).

6. The novel cavity automobile anti-collision beam energy absorption box according to claim 5, characterized in that: the outer radius of the chamfer (10) is 6 mm.

7. The novel cavity automobile anti-collision beam energy absorption box according to claim 4, characterized in that: the radius of the drawing chamfer (9) is 3 mm.