CN201849428U

CN201849428U - Automobile front anti-collision beam capable of increasing front windward area of water tank

Info

Publication number: CN201849428U
Application number: CN2010205990486U
Authority: CN
Inventors: 闫丽
Original assignee: Ling Yun Industrial Corp Ltd
Current assignee: Ling Yun Industrial Corp Ltd
Priority date: 2010-11-09
Filing date: 2010-11-09
Publication date: 2011-06-01
Anticipated expiration: 2020-11-09

Abstract

The utility model discloses an automobile front anti-collision beam capable of increasing the front windward area of a water tank, which is used for solving the problem of an anti-collision beam of an automobile. The automobile front anti-collision beam adopts the technical scheme that the automobile front anti-collision beam comprises a cross beam and energy-absorbing boxes symmetrically arranged at two sides of the cross beam; and after improvement, the cross beam is formed by welding an upper beam and lower beams symmetrically arranged at lower parts of two sides of the upper beam; the cross section of the upper beam is in the shape of a rectangle with a step-shaped unfilled corner; the step-shaped unfilled corner is positioned at the lower part in front of the upper beam; and the lower beams are rectangular. Aiming at the purpose of increasing the windward area of the water tank, the design of the cross beam is optimized, on the basis that the position of the whole front anti-collision beam is not changed, an air intake grill is not required to be redesigned and the strength requirement is satisfied, the problem that the height of the front anti-collision beam of certain automobile models is aligned at the air intake grill to cause the temperature of the water tank to be out of limit is solved. The automobile front anti-collision beam has the advantages that the structure is simple and practical, the automobile front anti-collision beam is convenient to disassemble and maintain, the self weight of the front anti-collision beam is reduced, and the like.

Description

Can increase the front anticollision beam of automobile of water tank wind area

Technical field

The utility model relates to a kind of Vehicular device, particularly can increase the front anticollision beam of automobile of water tank wind area, belongs to automobile harness technical field.

Background technology

Front anticollision beam of automobile is the main safety knot member that occupant and car body is formed protective effect when automobile generation head-on crash; the structure design of front anti-collision beam not only will be considered safety performance, also will take into account the related question of other parts that are positioned at the collision prevention girders periphery and the unit design problem of car body profile.Crashproof its section of crossbeam shape mostly is complete uniform cross section structure before the various automobiles in the market, as Type B beam, D type beam etc.The problem that this common structure exists is as follows: when the collision prevention girders height faces air-inlet grille, can cause the water tank wind area to reduce, thereby make the vehicle length time rear water box temperature exceeding standard that travels, the automobile self-extinguishing, dropping to the normal temperature automobile up to water tank temperature can restart, but the appearance that the problems referred to above can be gone round and begun again.Usually this way to solve the problem is had two, the one, change the front part of vehicle moulding, promptly reduce the position of water tank and air-inlet grille simultaneously, avoid the front anti-collision beam installing space, if this way vehicle moulding in early stage is fixed, more reworked can bring the postponement of vehicle design time node, and because the covering die cost is very high, water tank installation site associated part is a lot, so change water tank and the generation of air-inlet grille position are very expensive; Another kind of mode is that preceding crashproof crossbeam is moved on the whole; reserve the cooresponding ventilation inlet of air-inlet grille position; because can not be corresponding after moving on the front anti-collision beam installation site with longeron; the direct result that this method is brought is to have reduced the crash protection performance of collision prevention girders; when bumping, do not support by automobile owing to energy-absorbing box back has longeron; can not effectively absorb collision energy, be difficult to reach present every safe performance indexes, such sacrifice is that auto vendor and customer are unacceptable.

The utility model content

The utility model is used to solve the defective of above-mentioned prior art and provides a kind of and both can guarantee the collision energy-absorbing effect, can keep front anti-collision beam and longeron relative position unmodified can increase the front anticollision beam of automobile of water tank wind area.

The alleged problem of the utility model solves by the following technical programs:

A kind of front anticollision beam of automobile that increases the water tank wind area, comprise crossbeam and the energy-absorbing box that is symmetricly set on the crossbeam both sides in the formation, special feature is: described crossbeam is formed by the underbeam seam of putting the beams in place and be symmetricly set on two side lower parts of putting the beams in place, described upper beam shape of cross section is the rectangle that has a stage shape unfilled corner, stage shape unfilled corner is positioned at upper beam fwd bottom, and described underbeam beam shape is a rectangle.

The above-mentioned front anticollision beam of automobile that increases the water tank wind area, described upper beam length dimension A is 900-1200mm, and the underbeam medial extremity is provided with transition oblique angle α, and α is 10-60 °, and underbeam base length C is 100-300mm.

The above-mentioned front anticollision beam of automobile that increases the water tank wind area, described beam-end height dimension B is 80-150mm, width dimensions G is 30-60mm, wherein put the beams in place, underbeam is wide, the pass of described upper beam height dimension D and crossbeam height B is the D of B=(1.5-2), the pass of described upper beam stage shape unfilled corner height dimension E of place and upper beam height dimension D is: D=(3-4) E, the pass of upper beam stage shape unfilled corner width dimensions F of place and upper beam width dimensions G is: G=(4-8) F.

The utility model faces air-inlet grille at some cars owing to the collision prevention girders height, causing the water tank wind area to reduce problem improves, crossbeam is positioned at the air-inlet grille place cuts a part, thereby increase the water tank wind area, guarantee the performance of ventilating of air-inlet grille.This improved technical barrier is: after crossbeam cut a part, its crash protection performance was constant.For reaching above-mentioned requirements, the utility model to the carrying out of crossbeam optimal design, crossbeam is divided into three parts, both sides by put the beams in place, the underbeam seam forms, cut the approximate Type B of shape, but the unfilled corner of putting the beams in place processing can reach the effect of reinforced rib, centre portion has only upper beam.Said structure shows that through the cae analysis test its 25 kilometers speed per hour front rigid wall collisions and 56 kilometers speed per hour offset collisions and common crossbeam collision prevention girders crash protection performance are basic identical.The utility model is not changing whole front anti-collision beam position, is not also needing to redesign air-inlet grille and satisfy under the prerequisite of requirement of strength, has solved some vehicle front anti-collision beam height and has faced the difficult problem that air-inlet grille causes water tank temperature to exceed standard.And have simple and practically, and be convenient to dismounting maintenance, alleviate advantages such as collision prevention girders deadweight.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the beam structure scheme drawing;

Fig. 3 is protruding birds-eye view;

Fig. 4 is the K-K cross sectional drawing (enlarged drawing) of Fig. 2;

Fig. 5 is the utility model scheme of installation;

Fig. 6 is the utility model and the common crossbeam accelerating curve when doing front rigid wall collision with 25 kilometers speed per hours;

Fig. 7 is the utility model and the common crossbeam accelerating curve when making offset collision with 56 kilometers speed per hours.

Each label is as follows in the accompanying drawing: 1. adapter plate, and 2. energy-absorbing box, 3. crossbeam, 3-1. puts the beams in place, 3-2. underbeam, 3-3. stage shape unfilled corner, 4. water tank, 5. grid.

The specific embodiment

Referring to Fig. 1, comprise crossbeam 3 and the energy-absorbing box 2 that is symmetricly set on the crossbeam both sides during the utility model constitutes, reach the adapter plate 1 that links to each other with two energy-absorbing boxes.

Referring to Fig. 1-3, for reducing crossbeam to water tank windward side shielded area, crossbeam 3 described in the utility model is formed with the underbeam 3-2 seam that is symmetricly set on two side lower parts of putting the beams in place by upper beam 3-1, in other words, position at the corresponding water tank in crossbeam middle part, excised a part of material, to exchange the increase of water tank wind area for.According to the vehicle difference, the length dimension A of upper beam 3-1 is 900-1200mm, the size of underbeam base length C according to the water tank width setup between 100-300mm; For avoiding stress concentration, underbeam is inboard to be provided with transition oblique angle α with upper beam seam end, and α is 10-60 °.

For making crossbeam can guarantee that still its crash protection performance does not reduce after material is reduced at the middle part, the utility model has carried out optimal design to the section of beam shape.Referring to Fig. 2, Fig. 4, described upper beam 3-1 is fastened by two boards and is welded, its shape of cross section is the rectangle that has a stage shape unfilled corner, stage shape unfilled corner 3-3 is positioned at the bottom of upper beam front (windward side), this stage shape unfilled corner 3-3 forms the effect of reinforced rib, satisfies the energy-absorbing requirement in order to guarantee beam strength.Described underbeam 3-2 is fastened by two boards to be welded, and the beam shape of underbeam is a rectangle.The design of above-mentioned section of beam shape, make the utility model and common Type B or D cross section crossbeam that basic difference be arranged, according to the cae analysis result, through adjusting the rational Match of upper beam sectional dimension and stage shape unfilled corner size repeatedly, obtain the physical dimension of the utility model crossbeam each several part, accelerating curve is compared several indifferences with common crossbeam in the offset collision when making its front rigid wall collision when 25 kilometers speed per hours with 56 kilometers speed per hours, as Fig. 6, shown in Figure 7.Thereby do not changing the front anti-collision beam position, also do not need to redesign air-inlet grille and satisfy under the prerequisite of requirement of strength, solving the problem that some vehicle front anti-collision beam height face air-inlet grille.The physical dimension of section of beam is as follows: beam-end height dimension B is 80-150mm, and width dimensions G is 30-60mm, wherein puts the beams in place, underbeam is wide.The pass of upper beam height dimension D and crossbeam height B is the D of B=(1.5-2), the pass of upper beam stage shape unfilled corner height dimension E of place and upper beam height dimension D is: D=(3-4) E, the pass of upper beam stage shape unfilled corner width dimensions F of place and upper beam width dimensions G is: G=(4-8) F.

Fig. 5 is front anticollision beam of automobile described in the utility model and water tank 4, grid 5 installation site scheme drawings.

A specific embodiment is provided: crossbeam length dimension A is 1050mm, end height dimension B is 100.612mm, width dimensions G is 46.082mm, upper beam height dimension D is 67.112mm, the stage shape unfilled corner height dimension E of place is 16.597mm, wide F is 8mm, and it is 25 ° that the underbeam medial extremity is provided with transition oblique angle α, and underbeam base size C is 205.341mm.

What Fig. 6 represented is the contrast of the common crossbeam of the utility model and prior art accelerating curve when the front rigid wall collides when 25 kilometers speed per hours, and promptly tested vechicle clashes into rigid wall with 25 kilometers speed, then exports the acceleration parameter of the car in the collision process.The accelerating curve of output car is in order to judge the injured degree of people in the car with the accekeration of car, car after collision in the car people's the degree that is hurt promptly be the safety performance of car, so the contrast of accelerating curve is exactly the contrast of the collision safety performance of car.Different bumpers can produce different accelerating curves in collision process.The accelerating curve of the utility model and prior art structure is a basically identical, can prove that thus the safety performance of car is consistent.

Fig. 7 is the utility model and the common crossbeam accelerating curve when making offset collision when 56 kilometers speed per hours, in this test, automobile is with the obstacle of 56 kilometers speed bump honeycomb aluminium shape, equally also export the accelerating curve of the car in the collision process, compare these two curves, the safety performance that can find car is consistent, no matter promptly the utility model is that safety performance can reach the requirement of original structure under high speed or low speed collision situation.

Claims

1. front anticollision beam of automobile that can increase the water tank wind area, it comprises crossbeam (3) and is symmetricly set on the energy-absorbing box (2) of crossbeam both sides, it is characterized in that: described crossbeam (3) is formed by underbeam (3-2) seam of putting the beams in place (3-1) and be symmetricly set on upper beam two side lower parts, described upper beam shape of cross section is the rectangle that has a stage shape unfilled corner, stage shape unfilled corner (3-3) is positioned at upper beam fwd bottom, and described underbeam beam shape is a rectangle.

2. the front anticollision beam of automobile that increases the water tank wind area according to claim 1, it is characterized in that: described upper beam (3-1) length dimension A is 900-1200mm, described underbeam (3-2) medial extremity is provided with transition oblique angle α, and α is 10-60 °, and underbeam base length C is 100-300mm.

3. the front anticollision beam of automobile that increases the water tank wind area according to claim 1 and 2, it is characterized in that: described beam-end height dimension B is 80-150mm, width dimensions G is 30-60mm, wherein put the beams in place, underbeam is wide, the pass of described upper beam height dimension D and crossbeam height B is the D of B=(1.5-2), the pass of described upper beam stage shape unfilled corner height dimension E of place and upper beam height dimension D is: D=(3-4) E, the pass of upper beam stage shape unfilled corner width dimensions F of place and upper beam width dimensions G is: G=(4-8) F.