CN204605465U - The anti-windshield that splits - Google Patents

Abstract

The anti-windshield that splits, comprises the polyester security laminate of monolithic windshield body and glass inner side bonding.Structure because of windshield be single chip architecture and outside face through the process of ion tempering, skin stress value reaches hundreds of MPa, effectively slow down splash enter to split risk.Face heavier head-on thrower even the macro-energy object penetration such as gunslinging time, the polyester security laminate bonding because of the windshield back side can stretch in the brief moment be hit, extend alluvium work distance, thus stop macro-energy impacted object to run through windshield, guarantee occupant's safety.Compared with the windshield of the conventional interlayer technology of same thickness, what this patent provided prevents improving impact strength decades of times into splitting windshield, and can resist repeatedly constant impingement, penetration resistance strength enhancing several times to ten several times, and can resist repeat impact.Meanwhile, glass meets other all indexs of automotive safety glass standard GB9656-2003.

Description

The anti-windshield that splits

Technical field

The utility model relates to a kind of windshield (windscreen) of vehicle, be that one can play anti-(human face's quilt) scuffing, anti-splashing thing splits, anti-thrower runs through, anti-gunshot, good transmittance, ultraviolet, infrared ray stop rate high (high heat insulation), and meet the car front windshield windscreen special glass of automotive safety glass standard GB9656-2003 indices.

Background technology

Current front windscreen for vehicle technology still continues to use European Community's relevant criterion in the 1970's on machinery and mechanical property, traditional windshield structure of general applications adopts the form of 2mm monolithic float glass+0.50-0.75mmPVB polyester sheet+2mm monolithic float glass.Shock resistance index and the penetration resistance index of existing standard are all starkly lower than actual demand: when speed per hour 50 kilometers, the hard splashes such as the handstone of such as 10 grams, can 100% to split windshield; During speed per hour 70 kilometers, meet with the hard thrower as 500 grams of concrete blocks, then 100% can run through windshield.Study carefully its fact, being because traditional windscreen cannot realize the demand of unidirectional lifting intensity, for ensureing the safety of maximum probability accident situation, having to the safety measure abandoned in small risk events.

In the production-release design of orthodox car windscreen, for slowing down in vehicle sudden stop, the daily accident very large with the probability of occurrence such as front truck rear-end impact, it is injured when head part strikes windscreen, must break with absorbing impact energy when standard-required windshield is subject to impacting, avoid impact energy to concentrate on head part and make injury to personnel.Because of the symmetrical configuration of traditional windscreen, when being easy to collision cleft glass from inner side, glass also just cannot being allowed from outside to have more high strength thus resist splash and do not split, also cannot realize higher head-on penetration resistance intensity.

When windscreen is designed to unsymmetric structure by us, utilize lever principle to allow the moment that is hit on glass two sides produce difference, just can realize the inside and outside difference of windshield mechanical characteristics.

Polyester security laminate is mounted inside the anti-windshield that splits, utilize high tensile strength and bind strength from inner side give glass higher in tensile stress and bending strength, add the more stress value that upper outer surface reaches through ion exchange, realize not hit when glass meets with the impact of outside splash splitting, there is heavy weight thrower when head-on running through risk, security laminate because of glass inner side possesses good stretching extension ability, stretched by deformation and the work distance of thrower is obviously extended, thus significantly reduce impulsive force, the final prevention runs through.

When from interior side impact glass, what first touch is polyester security laminate, form the single laminated thickness of this polyester lamination between 0.03-0.15mm, the gross thickness of this polyester lamination is between 0.20-1.20mm, after being adhered to the monolithic glass back side of 3mm thickness, can allow glass in steel ball free drop test, reach the penetration resistance intensity being not less than 100-500 joule, glass outer surface not attachment plays the security laminate of moment point action as inner side, like this as syn-collision a slice simple glass, complete energy meets head-form test's index of " splitting at a touch ".And now head and glass barrier come by security laminate, even if collision cleft glass also can not scratch head.Glass only outside face is strengthened, and inner surface is not strengthened.

Windshield also can be expanded to tunnel escape by this unidirectional safeguard function.Tradition windshield, because be sandwich structure, cannot pass through once head part have passed through glass shoulder, will form extremely dangerous " card neck " situation, so automobile front windshield is not the tunnel escape of original design.But the structure of the anti-windshield that splits; the polyester security laminate of inner side flexible; no matter occupant uses apparatus or clashes into windshield with health; all can not by glass scratch; on the contrary; because there is the protection of security laminate, occupant easily can be pedaled windshield de-with the Method compare of pedal, escapes from interior realization from Front Windshield.

As required, the intensity of the anti-windshield that splits can reach the shellproof level of army and police, and now maximum bright spot is the one-way bulletproof of this windshield and can strikes back performance.Namely, while effective stop is shot from outside to inside, from inside to outside can effective fire fight back.Its principle runs through the same with above-mentioned anti-thrower, and a slice, less than the polyester sheet of 1mm thickness, stops in any case can not produce actv. to the impact of the high bullet of a pressure.When outwards strikeing back shooting from inner side, trajectory obviously can not deflect bullet speed can not obviously be reduced.

Utility model content

The purpose of this utility model is to provide that one is thinner, more high-transmittance, higher ultraviolet stop rate and more heat insulation and have more high impact strength, higher penetration resistance intensity, guarantee that the windshield of vehicle user meets with splash and do not split under the prerequisite of legal speed limit, do not run through when meeting with thrower, met the anti-windshield that splits of GB simultaneously.

The purpose of this utility model is achieved through the following technical solutions:

The anti-windshield that splits, comprise monolithic windshield body, described windshield body by mold hot roll forming same or same with former vehicle glass, after the hardening processes such as surface ion displacement, paste polyester security laminate in the inner side of windshield body, this security laminate also claims safety diaphragm.Described polyester security laminate comprises at least three laminations, by polyester Performance of Pressure Sensitive Adhesive between adjacent two laminations.Form the single laminated thickness of this polyester lamination between 0.03-0.15mm, the gross thickness of this polyester lamination is between 0.20-1.20mm, after being adhered to the monolithic glass back side of 3mm thickness, can allow glass in steel ball free drop test, reach the penetration resistance intensity being not less than 100-500 joule, glass outer surface not attachment plays the security laminate of moment point action as inner side, like this as syn-collision a slice simple glass, head-form test's index of " splitting at a touch " can be met completely.Glass only outside face is strengthened, and inner surface is not strengthened.

The finished product that hot bending operation completes need be up to the standards according to GB, must clean formed glass before ion tempering operation comprehensively, according to different performance index demand, ion steel process range of temperatures at 400-500 degree Celsius, temperature retention time scope 1-16 hour, with nitrate salt form bath.

After completing surface ion replacement Treatment, surperficial stress value must be checked whether up to standard, according to real needs, anti-windshield stress value scope 500-1500 MPa of splitting.

Detect windshield after qualified ion exchange through presentation quality and stress value, put up the polyester security laminate having at least three laminations at inner surface gross area.

Security laminate put up after drying, printing opacity, dustless be not less than in the environment of 20 degrees Celsius dry in the air and put 120-720 hour after, through the optical index to windshield, mechanical index inspect by random samples qualified after case and dispatch from the factory.

Accompanying drawing explanation

According to drawings and embodiments the utility model is described in further detail below.

Fig. 1 is the constructional drawing of the anti-windshield that splits.

In figure: 1, windshield body; 2, polyester security laminate.

Detailed description of the invention

As shown in Figure 1, the anti-windshield that splits described in the utility model, comprise windshield body 1, described windshield body 1 passes through hot bending, ion exchange modifier treatment is done to the outer surface of windshield body 1, polyester security laminate 2 is pasted with in the inner side of windshield body 1, described windshield body is by should the genuine grand master pattern of model windshield or consistent mould produce, described polyester security laminate 2 comprises at least three strata ester (polyethylene terephthalate) thin slices, by polyester Performance of Pressure Sensitive Adhesive between adjacent two layers polyester sheet.

Be pasted with polyester security laminate 2 inside windshield body 1 after, significantly should promote by interior tensile stress, when windshield body 1 is subject to external impact, the flexural deformation being enough to allow it fracture is less likely to occur, keeps not breaking of glass with this.Under the impact of such as bullet contour point pressure form, the glass fragment come off near point of impact because of high level longitudinal shear is along the polyester security laminate of bullet heading compressing glass back, polyester security laminate then binds by extension elongation bullet work distance and lamination the changes such as micrometric displacement such as slippage that get loose, and alleviates to impact to keep glass not run through.

The concrete function of windshield described in the utility model and resemblance

Ultra-thin: the anti-windshield that splits, very little with common windshield difference in profile, amateur glass personnel discover the difference less than glass substantially.In most cases, the thickness of the anti-windshield that splits can lower than the common windshield of tradition of same money vehicle.When have clearly shellproof index request time, still there is ultra-thin advantage in the anti-windshield that splits compared with the shellproof windshield of the conventional interlayer reaching same protection level.According to different shellproof grades, prevent splitting windshield thickness within the scope of 5-33mm;

Anti-splashing thing splits: common windshield meets with 10 grams of gravelstone subclass hard splashes and can split when the speed of a motor vehicle is 50 kilometers, and the anti-windshield that splits meets with same splash and all do not split under 120-250 kilometer speed per hour;

Anti-thrower runs through: common windshield meets with 500 grams of concrete block classes hard thrower when the speed of a motor vehicle is 70 kilometers can run through, and the anti-windshield that splits meets with same thrower under 120-250 kilometer speed per hour all not to be run through;

Shellproof: common conventional interlayer windshield does not possess the bulletproof function of any rank completely, the anti-windshield that splits can reach the level of ballistic protection of B1-B7 rank as required;

High printing opacity: the anti-windshield that splits, under realization high heat insulation i.e. more than 86% infrared ray stop rate, the radiation proof i.e. prerequisite of more than 99% ultraviolet stop rate, reaches the light transmittance of 70-90%;

Radiation proof and control harmful light: the anti-windshield that splits also possesses the ultraviolet function of stop more than 99%, can the health of available protecting occupant and the significantly degree of aging of article in reduction car.

Claims (2)

1. the anti-windshield that splits, comprise the polyester security laminate of monolithic windshield body and inner adhesion, described windshield body, by mold hot roll forming same or same with former vehicle glass, is characterized in that, A. monolithic windshield body is through the process of ion tempering; B. glass inner side surface mount has polyester security laminate, and this security laminate also claims safety diaphragm.

2. the anti-windshield that splits according to claim 1, it is characterized in that, A. polyester security laminate comprises at least three strata ethylene glycol terephthalates, by polyester Performance of Pressure Sensitive Adhesive between adjacent two layers polyester sheet, form the single laminated thickness of this polyester lamination between 0.03-0.15mm, the gross thickness of this polyester lamination is between 0.20-1.20mm, after being adhered to the monolithic glass back side of 3mm thickness, can allow glass in steel ball free drop test, reach the penetration resistance intensity being not less than 100-500 joule; B. glass only outside face strengthened, inner surface is not strengthened.