CN101811518A

CN101811518A - Automobile engine nacelle curb girder front part with reinforced energy absorbing structure

Info

Publication number: CN101811518A
Application number: CN 201010123141
Authority: CN
Inventors: 邹途祥; 王珂; 邵金华
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2010-03-12
Filing date: 2010-03-12
Publication date: 2010-08-25
Anticipated expiration: 2030-03-12
Also published as: CN101811518B

Abstract

The invention discloses an automobile engine nacelle curb girder front part with a reinforced energy absorbing structure. The front part comprises a body, a foreplate of an external closing plate, a front lock plate, and a support of a front crush box, which is connected on the front lock plate. The invention is characterized in that one end of the front internal crush box and one end of the front external crush box are respectively connected with the support of the front crush box; the front internal crush box and the front external crush box are oppositely locked with each other and the front internal crush box is arranged inside the front external crush box; a first half reinforced cylinder and a second half reinforced cylinder are arranged inside the front internal crush box and are oppositely connected into a cylinder; and one end of the cylinder is connected with the support of the front crush box. Adopting a unique structure with the front internal crush box inside the front external crush box guarantees the complete absorption of energy during offset collision; the partitioning is reliable and punch forming is easy, thereby guaranteeing that an automobile can be successfully repaired when colliding at low speed; and the invention completely reaches the high-star score E-NCAP and C-NCAP according to the analysis of CAE.

Description

A kind of automobile engine nacelle curb girder front part with reinforced energy absorbing structure

Technical field

The present invention relates to automobile component, be specifically related to a kind of automobile engine nacelle curb girder front part with reinforced energy absorbing structure.

Background technology

Now, auto-industry are in the fastest period of development since the dawn of human civilization, and automobile pollution significantly increases, and traffic accident also increases thereupon year by year.Along with the more attention of people to life, no matter domestic and international, the star of auto against has become the important consideration that people purchase car.And make the car of independent brand squeeze into the foreign market, must in E-NCAP (European car value disciplines), obtain high score, it is the difficult point of score that yet the biasing of E-NCAP (64km/h) is bumped, because it far above domestic C-NCAP (Chinese automobile value disciplines) (56km/h).

Fig. 1 is a kind of automobile engine nacelle curb girder front part, its part is by being welded as an assembly mutually by leading portion body, preceding collision box erection support and outer shrouding header board, another part is by being welded as another assembly mutually by preceding collision inner box, the outer box of preceding collision, then, with two parts again general assembly form.

Fig. 2 is another kind of automobile engine nacelle curb girder front part, by leading portion body, outer shrouding header board and preceding collision inner box by being welded mutually, and engine nacelle curb girder front part be again by before, during and after the material of three sections different-thickness adopt laser assembly solder to form, before, during and after three sections all be high tensile steel plate, not only piecemeal is unreasonable, and cost is increased greatly; When low speed collision took place, maintenance was inconvenient.

More than two kinds of automobile engine nacelle curb girder front parts reinforcement all is not set, and have only small part to be provided with endergonic structure, thereby make, bending phenomenon occurs and energy-absorbing is insufficient in when collision, finally cause in central collision score not high, can not get E-NCAP and C-NCAP set quota.

Summary of the invention

The purpose of this invention is to provide a kind of automobile engine nacelle curb girder front part with reinforced energy absorbing structure, it can obtain the higher collision star, reaches the high star mark that E-NCAP and C-NCAP biasing is bumped fully, promptly satisfies the requirement of offset collision.

As everyone knows, improve the collision star of automobile, mainly be the coupling by the endergonic structure and the safety air bag of vehicle body, yet the reinforcement of engine nacelle curb girder front part, endergonic structure are the bases.

A kind of automobile engine nacelle curb girder front part of the present invention with reinforced energy absorbing structure, comprise the leading portion body, be connected the outer shrouding header board of leading portion body bottom, be connected leading portion body right-hand member preceding jam plate, be connected the preceding collision box bearing on this preceding jam plate, it is characterized in that:

An end that collides outer box before one before the collision inner box and all is connected with preceding collision box bearing, before being positioned at, outer relative fastening of box of preceding collision inner box and preceding collision and preceding collision inner box oral area collide within the outer box oral area, form the structure of box in the box, to guarantee that energy-absorbing is abundant when biasing is bumped;

Be provided with first in the box and add more than half tube and second and add the more than half tube outside preceding collision inner box and preceding collision, first adds more than half tube and second adds the relative cylindrical shell that is connected to form of more than half tube, and an end of this cylindrical shell is connected with preceding collision box bearing.

Described a kind of automobile engine nacelle curb girder front part with reinforced energy absorbing structure, also be included in the inboard, back of leading portion body right part first reinforcement, right part the inboard, front second reinforcement, be located at the 3rd reinforcement of the inboard, front of leading portion body left part.The 3rd reinforcement is mainly used in the engine mounting installation and is strengthened, and its first, second reinforcement is used for the abundant energy-absorbing that biasing is at a high speed bumped.

Described a kind of automobile engine nacelle curb girder front part with reinforced energy absorbing structure, it described first adds more than half tube and second and adds relative being connected to form of more than half tube and be equal to or greater than six-sided polygon cylindrical shell, thereby makes opposing unstability ability strengthen.

The present invention and prior art bottom have the following advantages: adopt the structure of box in unique box, the energy-absorbing that having guaranteed setovers bumps is abundant; Piecemeal is reasonable, and easily punch forming helps welding the increase with vehicle body local strength; Adopt and divide block mode, guaranteed that automobile when low speed collision, can very successfully keep in repair; Analysis by CAE (computer aided design) has reached E-NCAP and the high star mark of C-NCAP fully, thereby squeezes into the foreign market and win more customers and lay a solid foundation for independent brand.

Description of drawings

Fig. 1 is the structural representation of existing a kind of automobile engine nacelle curb girder front part.

Fig. 2 is the structural representation of existing another kind of automobile engine nacelle curb girder front part.

Fig. 3 is an axonometric drawing of the present invention.

Fig. 4 is the axonometric drawing of the inner reinforcement of assembly of the present invention.

Fig. 5 is the part of front view of the present invention.

Fig. 6 is the A-A section-drawing of Fig. 5.

Fig. 7 is the B-B section-drawing of Fig. 5.

Fig. 8 is the scheme drawing of the 3rd reinforcement.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing.

Referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and a kind of automobile engine nacelle curb girder front part shown in Figure 8 with reinforced energy absorbing structure, comprise leading portion body 6, be connected the outer shrouding header board 5 of leading portion body bottom, be connected leading portion body right-hand member preceding jam plate 4, be connected the preceding collision box bearing 3 on this preceding jam plate; An end that collides outer box 2 before one before the collision inner box 1 and all is connected with preceding collision box bearing 3, collide within the outer box oral area before the oral area box is positioned in outer relative fastening of box of preceding collision inner box and preceding collision and the preceding collision, form the structure of box in the box, to guarantee that energy-absorbing is abundant when biasing is bumped; Be provided with first in the box 2 and add more than half tube 8 and second and add more than half tube 7, the first and add more than half tube and second and add the relative cylindrical shell that is connected to form of more than half tube outside preceding collision inner box 1 and preceding collision, an end of this cylindrical shell is connected with preceding collision box bearing 3; First of this example adds more than half tube 8 and second and adds the relative polygon cylindrical shell (can certainly form the hexagon cylindrical shell, form the heptagon cylindrical shell, form the nonagon cylindrical shell) that eight limits such as is connected to form of more than half tube 7 is provided with first reinforcement 9, right part in the inboard, back of leading portion body 6 right parts inboard, front and be provided with second reinforcement 10, is provided with the 3rd reinforcement 11 in the inboard, front of leading portion body 6 left parts.

Fig. 1 is existing a kind of automobile engine nacelle curb girder front part, its part is by being welded as an assembly mutually by leading portion body 6, preceding collision box erection support 3 and outer shrouding header board 5, another part is by being welded as another assembly mutually by preceding collision inner box 1, the outer box 2 of preceding collision, then, with two parts again general assembly form.

Fig. 2 is existing another kind of automobile engine nacelle curb girder front part, by leading portion body 6, outer shrouding header board 5 and preceding collision inner box 1 by being welded mutually.

Claims

1. the automobile engine nacelle curb girder front part with reinforced energy absorbing structure comprises BeforeDuan Benti (6), be connected the outer shrouding header board (5) of leading portion body bottom, be connected leading portion body right-hand member preceding jam plate (4), be connected the preceding collision box bearing (3) on this preceding jam plate, it is characterized in that:

An one preceding end that collides an inner box (1) and a preceding outer box of collision (2) all is connected with preceding collision box bearing (3), and preceding collision inner box is positioned at preceding the collision within the outer box oral area with outer relative fastening of box of preceding collision and preceding collision inner box oral area;

Be provided with first in the box 2 and add more than half tube (8) and second and add more than half tube (7) outside preceding collision inner box (1) and preceding collision, first adds more than half tube and second adds the relative cylindrical shell that is connected to form of more than half tube, and an end of this cylindrical shell is connected with preceding collision box bearing (3).

2. a kind of automobile engine nacelle curb girder front part with reinforced energy absorbing structure according to claim 1 is characterized in that: also comprise the inboard, back that is located at leading portion body (6) right part first reinforcement (9), right part the inboard, front second reinforcement (10), be located at the 3rd reinforcement (11) of the inboard, front of leading portion body (6) left part.

3. a kind of automobile engine nacelle curb girder front part with reinforced energy absorbing structure according to claim 1 and 2 is characterized in that: described first adds more than half tube (8) and second adds relative being connected to form of more than half tube (7) and is equal to or greater than six-sided polygon cylindrical shell.