CN2790848Y

CN2790848Y - Automobile front collision crossbeam with middle pit-pressing energy-absorbing structure

Info

Publication number: CN2790848Y
Application number: CN 200520009380
Authority: CN
Inventors: 彭利明; 张荣建; 郭武俊; 方向东; 张海清; 周定陆
Original assignee: Changan Automobile Group Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2005-05-31
Filing date: 2005-05-31
Publication date: 2006-06-28
Anticipated expiration: 2015-05-31

Abstract

The utility model discloses an automobile front collision beam with a middle pressed pit energy absorbing structure, which is composed of a beam outer plate, an inner plate and front collision box welded assemblies on the left and the right ends of the beam. An inward concave pressed pit is arranged in the right middle position of the beam outer plate, and a pressed pit is also arranged on the corresponding position of the beam inner plate. Through the arrangement of the pressed pit, the problems of insufficient energy absorption and strong rigidity of the utility model are solved simultaneously under the precondition of the guarantee of the strength and the rigidity of the front collision beam. When an automobile collides, the utility model has an effective energy absorption function and is used for guiding stress to be concentrated in the middle, and thus, a front collision beam assembly and a cross beam front end connecting mechanism can be prevented from great damage. On one hand, invasion amount to a human body is reduced and a driver and passengers are protected. Meanwhile, damage to an automotive body is reduced. The utility model has the advantages of easy maintenance and even no requirement of maintenance.

Description

Automobile front collision crossbeam with middle pcketing endergonic structure

Technical field

The utility model belongs to the vehicular spare parts technical field, is specifically related to a kind of automobile front collision crossbeam with middle pcketing endergonic structure.

Background technology

The safety of manned vehicle is very important, and to absorb energy mechanism be to be to solve the active safety problem to the collision crossbeam before adopting, and be the requirement of national compulsory rules, and the collision crossbeam can absorb enough energy and satisfies the safety laws and regulations requirement before this just needed.

Collision crossbeam assembly before though present many manned vehicles all have, but its inner structure in design also not exclusively rationally, the midway location that bumps crossbeam before for example various all is not have energy absorber, when low speed collision, after the often lighter collision, because its energy-absorbing deficiency, rigidity is too strong, cause the intrusion amount of human body big, the injury occupant, and before bump crossbeam easily therefrom between fracture and damage, bump the big destruction of crossbeam assembly and left and right sides crossbeam front end bindiny mechanism generation before causing, and make violent bump pass to other part of car load, cause maintenance difficult, even can't repair.

Summary of the invention

The purpose of this utility model is the deficiency at the prior art existence, a kind of automobile front collision crossbeam with middle pcketing endergonic structure is provided, by adopting rational endergonic structure, collision crossbeam absorption energy shortage exceeds standard and the very difficult problem of repairing of automobile to the intrusion amount of human body before the solution.

The automobile front collision crossbeam with middle pcketing endergonic structure that the utility model relates to is made up of the preceding collision box welding assembly at crossbeam outside plate, inner panel and two ends, the left and right sides.Unique distinction of the present utility model is in the position, middle of crossbeam outside plate (BL=0) pcketing that caves inward to be set, and the big R of this pcketing is 5, and little R is 3; Simultaneously, in the relevant position of crossbeam inner panel one pcketing is set also, the big R of this pcketing is 18, and little R is 4.5.

The utility model is by the setting of above-mentioned pcketing; before assurance under the prerequisite of strength and stiffness of collision crossbeam; also solved simultaneously its energy-absorbing deficiency; the problem that rigidity is too strong; when bumping; play the actv. energy-absorbing function; can guide stress concentration to take place in the centre; so that can be than low speed collision the time (15 kilometers/hour to 25 kilometers/hour low speed central collision and rear-end impacts); before bump the crossbeam assembly will be from the centre through elastic deformation; rupture again and damage to plastic deformation; bump crossbeam assembly and crossbeam front end bindiny mechanism before can not causing big destruction is taken place, minimizing is less to the intrusion amount of human body on the one hand, the protection occupant; reduce damage simultaneously to auto body; and maintenance even need not keeped in repair easily, has saved cost.

Description of drawings

Fig. 1 is the STRUCTURE DECOMPOSITION figure of collision crossbeam before this;

Fig. 2 is the constructional drawing of the outside plate of collision crossbeam before this;

Fig. 3 is the A portion enlarged drawing of Fig. 2;

Fig. 4 is the constructional drawing of the inner panel of collision crossbeam before this;

Fig. 5 is the B portion enlarged drawing of Fig. 4.

The specific embodiment

Referring to Fig. 1, basic structure composition of collision crossbeam is same as the prior art before this, is made up of the preceding collision

box welding assembly

31,32 at crossbeam outside plate 1, inner panel 2 and two ends, the left and right sides.Improvement of the present utility model is on outside plate 1 and inner panel 2.Can demonstrate from Fig. 2 and Fig. 3, the pcketing 4 of an inside depression is set in the position, middle of crossbeam outside plate 1 (BL=0), the big R of this pcketing is 5, and little R is 3.Can demonstrate from Fig. 4 and Fig. 5, in the relevant position of crossbeam inner panel 2 pcketing 5 is set also, the big R of this pcketing is 18, and little R is 4.5.

Claims

1, a kind of automobile front collision crossbeam with middle pcketing endergonic structure, preceding collision box welding assembly by crossbeam outside plate, inner panel and two ends, the left and right sides is formed, it is characterized in that: in the position, middle of crossbeam outside plate a pcketing that caves inward is set, one pcketing also is set in the relevant position of crossbeam inner panel.

2, automobile front collision crossbeam according to claim 1 is characterized in that: the big R of the pcketing on the crossbeam outside plate is 5, and little R is 3; The big R of the pcketing on the crossbeam inner panel is 18, and little R is 4.5.