CN214083791U - Automobile front windshield glass - Google Patents
Automobile front windshield glass Download PDFInfo
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- CN214083791U CN214083791U CN202022327198.8U CN202022327198U CN214083791U CN 214083791 U CN214083791 U CN 214083791U CN 202022327198 U CN202022327198 U CN 202022327198U CN 214083791 U CN214083791 U CN 214083791U
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- front windshield
- automobile
- windshield glass
- silica
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- 238000013461 design Methods 0.000 abstract description 21
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- 238000010561 standard procedure Methods 0.000 abstract 1
- 239000005361 soda-lime glass Substances 0.000 description 17
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 10
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- 230000003287 optical effect Effects 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000005336 safety glass Substances 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000005340 laminated glass Substances 0.000 description 5
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- 238000012545 processing Methods 0.000 description 2
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- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
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- Joining Of Glass To Other Materials (AREA)
Abstract
The utility model provides a standard method is checked to windscreen before car and windscreen molding profile thereof, include: the front windshield glass of the automobile is characterized by comprising green glass positioned on an outer layer, a PVB film positioned in an intermediate interlayer and high-alumina-silica-glass positioned on an inner layer, wherein the green glass is selected to be 2.0mm in thickness, the PVB film is selected to be 0.76mm in thickness, the high-alumina-silica-glass is selected to be 1.2mm in thickness, the arrangement area of the black edges around the front windshield glass meets the condition that the barrier angle of each A column is less than or equal to 6 degrees, the coverage width of the black edges around the front windshield glass is more than or equal to 5mm, and the inclination angle of the windshield glass is controlled to be 32-34 degrees. The utility model has the advantages that: accurate and efficient checking is provided for design and later-stage forming of the automobile front windshield glass, a designer can master the influence of a forming profile in a design stage, checking technical index points are provided, namely the size, the arch height, the curvature, a nine-point spherical surface and a loading angle, and corresponding experience reference values are provided.
Description
Technical Field
The utility model relates to an automobile glass technical field, more specifically relates to a windshield before car.
Background
It is well known that the earliest car designers had no consideration of designing windshields for cars, and therefore drivers often required to wear goggles to prevent sand and insects from affecting the driver during driving. However, with the increase of the vehicle speed, it is difficult for the goggles to achieve the wind-proof and sand-proof functions, especially the face protection. In the twentieth century, designers began to add glass to automobiles in order to achieve the purpose of wind shielding, which is the most primitive automobile front windshield. The automobile front windshield is limited by the scientific and technological level at that time, and is made of ordinary plate glass through simple mechanical processing. The disadvantage of the front windshield glass is that the front windshield glass not only can affect the sight light of a driver, but also can cause serious secondary injury to injured personnel after the front windshield glass is broken in an accident. Therefore, researchers are constantly searching for the optimal design of the front windshield of the automobile. With the progress of modern technology and the rapid development of modern industry, the performances of automobiles are greatly improved. Along with the improvement of road conditions and the further improvement of vehicle speed, the requirements of people on the safety performance, the operation performance, the comfort level and the attractiveness of the automobile are increasingly improved. The importance of the automobile safety glass is gradually paid attention to by people, and particularly, the design of the automobile front windshield glass not only needs to ensure enough safety performance, but also should reflect the aesthetic style and the intelligentized shadow of modern people. At present, it is reported that automobile safety glass, which is one of passive safety devices and appearance parts of an automobile, accounts for three percent of the total mass of the automobile. With the technical improvement of the Chinese automobile industry and the Chinese automobile glass industry, designers use the automobile safety glass to the maximum extent in the current automobile design so as to meet the aesthetic requirements of consumers. The surface area of the automotive safety glass thus occupies about one third or more of the total area of the automobile. The design concept is well embodied in the design of a full sedum window, the design of a double skylight, the design of a front windshield glass of a large-plate-surface automobile and the like.
The automobile front windshield glass with complex design, strict process and advanced technology is favored by researchers from the coming out to the present, not only because of high technical level and great processing and assembling difficulty, but also because the automobile front windshield glass is one of important protective measures for driving safety. At present, the material of the automobile front windshield mainly comprises laminated glass. For laminated glass, the selection of the glass original sheet and the modification of the intermediate interlayer material directly influence the performance of the laminated glass. The automobile front windshield glass on the market at present usually adopts a structure of green glass, PVB (polyvinyl butyral) and white glass, and soda-lime-silica glass is generally selected for the white glass and the green glass, and the original sheet of the glass is made into the front windshield glass which meets the size and the shape and meets the relevant requirements of optical performance and mechanical performance through the steps of cutting, edge breaking, edge grinding, washing, drying, sheet matching, bending, sheet combining, high temperature, high pressure, final inspection and the like. The interlayer materials have been studied. Researches show that the mechanical strength of the whole laminated glass can be enhanced and new functions can be endowed by micro-modification of PVB materials. For example, the purpose of reducing noise at low temperature can be achieved by regulating the number of-OH groups in a PVB molecular chain; by adopting a multi-layer superposed structure, the mechanical property and the mechanical strength of the PVB can be optimized while the noise is reduced. In addition to the research on the modification of laminated glass materials for automobiles, designers are also constantly improving and exploring the design of front windshields. The front windshield of the automobile is made into a whole large-curved surface type with a certain curvature. Therefore, camber, sphericity, minimum curvature, thickness, crown, etc. in the design of automotive windshields all determine whether the windshields can be formed during the forming stage. However, at present, no unified standard is available for accurately checking and evaluating the modeling surface design of the front windshield glass of the automobile, which causes great trouble to the early modeling design and the later molding process of the front windshield glass.
With the development of science and technology, the front windshield glass of the automobile pursues functionalization, safety and light weight, and the modeling size develops towards the scientification and meets the fluid mechanics requirement. To meet these requirements, the existing design parameters of the front windshield of the automobile have to be regulated, and the change makes the design of the front windshield facing new challenges. Therefore, the molded surface check standard of the front windshield glass of the automobile can be provided, the front windshield glass is lightened through optimized design, and the automobile safety glass has a positive promoting effect on the development of the automobile safety glass industry and the Chinese automobile industry.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, it is an object of the present invention to provide a front windshield for a vehicle, which is thin and lightweight, so as to overcome the above disadvantages of the prior art.
The utility model provides a windshield includes before car: the improvement of the front windshield glass of the automobile is that the front windshield glass of the automobile consists of green glass positioned at an outer layer, a PVB film positioned at an intermediate interlayer and high-alumina-silica-glass positioned at an inner layer, wherein the green glass is 2.0mm thick, the PVB film is 0.76mm thick, the high-alumina-silica-glass is 1.2mm thick, the barrier angle of each A column is less than or equal to 6 degrees in the arrangement area of the black edges around the front windshield glass, the covering width of the black edges around the front windshield glass is more than or equal to 5mm, the gap of the black edges around the front windshield glass is more than or equal to 3mm, and the inclination angle of the front windshield glass is controlled between 32 degrees and 34 degrees.
Preferably, the thickness of the automobile front windshield is 3.96mm, and the size of the plate surface of the front windshield is 1509.9321mm x 1069.1514mm in length x width.
The utility model has the advantages and positive effects that:
1. the utility model discloses through having carried out the ion exchange to high aluminosilicate glass and having reinforceed the back, the data simulation analysis of the refracting index of recombination high aluminosilicate glass and soda-lime-silica glass, visible light transmissivity, compressive strength and rupture strength finds that can replace 2.0 mm's soda-lime-silica glass as car front windshield sandwich glass's former piece of inner glass with 1.2 mm's high aluminosilicate glass, has accomplished lightweight purpose again when guaranteeing mechanical strength and optical property like this.
2. The utility model discloses a calculation can discover to the car front windshield of certain motorcycle type is as an example, and although the price is more expensive, behind the front windshield who changes to lightweight design than original every kilometer oil reduction 0.018L.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is an exploded view of a front windshield of a conventional automobile.
Fig. 2 is a schematic structural view of a front windshield of an automobile according to an embodiment of the present invention.
Fig. 3 is an enlarged view of a-a of fig. 2.
FIG. 4 is a graph of compressive strength of high alumina-silica glass and soda-lime-silica glass according to an embodiment of the present invention.
FIG. 5 is a plot of flexural strength for high alumina-silica glass and soda-lime-silica glass according to an embodiment of the present invention.
Wherein the reference numerals include: the glass comprises a front windshield glass 1, green glass 101, a PVB film 102 and high-alumina silica glass 103.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
Referring to fig. 2-3, the present invention provides a front windshield for a vehicle, comprising: the automobile front windshield glass 1 comprises green glass 101 positioned on an outer layer, a PVB film 102 positioned on an intermediate interlayer and high-alumina-silica-alumina glass 103 positioned on an inner layer, wherein the green glass 101 is selected to be 2.0mm in thickness, the PVB film 102 is selected to be 0.76mm in thickness, the high-alumina-silica glass 103 is selected to be 1.2mm in thickness, the barrier angle of each A column is less than or equal to 6 degrees in the black edge arrangement area around the front windshield glass 1, the covering width of the black edges around the front windshield glass 1 is greater than or equal to 5mm, the gap of the black edges around the front windshield glass 1 is greater than or equal to 3mm, and the inclination angle of the front windshield glass 1 is controlled to be 32-34 degrees.
The thickness of the automotive windshield 1 in this embodiment is 3.96mm, and the dimension of the panel surface of the windshield 1 is 1509.9321mm × 1069.1514mm in length × width.
The front windshield system of the front windshield 1 in this embodiment is composed of a base coat, a cleaning agent, an antenna, a glass cement, a limiting block, a rubber blocking strip, an interior and exterior rubber blocking strip, a front windshield, an interior rearview mirror base, a nail post or a stopping block, a rainfall sensor and the like.
Referring to fig. 1, the inner glass sheet of the automobile windshield 1 is white glass (mostly ordinary soda-lime-silica glass), and when the inner glass sheet is used as automobile glass, the thickness of the inner glass sheet must be increased in order to achieve corresponding mechanical properties. In order to reduce the weight of automotive glass, it is necessary to obtain glass having light weight and high strength instead of white glass. In the high-alumina-silica glass 103, because Al2O3 exists in the form of an alundum tetrahedron AlO4 structure in the glass structure, the structure has the outstanding advantage of repairing the imperfection of the glass network structure, so that the mechanical property and the optical property of the glass are enhanced, and the glass becomes the best candidate material for the lightweight design of automobile glass in the future.
High alumino silica glass has a lower flexural strength as does other glasses present in an amorphous state. This is also a problem that needs to be considered as a material for a front windshield of an automobile. The micro-crack theory suggests: the presence of microcracks is a factor that causes the strength of the glass to decrease and the brittleness to increase. It is also because of the accumulation of stress on the surface of the glass that the glass is susceptible to microcracking and the glass becomes brittle as the crack propagates. It is because the defects of glass itself affect the development prospect of the glass in application. As a result of intensive studies, it was found that [ AlO4] in the high aluminosilicate glass phase has a larger volume than [ SiO4], and therefore, the voids in the interior thereof are large. Due to the characteristics, the ion exchange efficiency is improved when the ion exchange enhancement treatment is carried out, so that the mechanical property and the chemical stability are further enhanced.
Based on this technique, the applicant also investigated the parameters relating to the mechanical and optical properties of soda-lime-silica glasses with a thickness of 2.0mm to 2.2mm and high-alumina-silica glasses with a thickness of 0.8mm to 1.2mm, which are produced by five automotive glass original companies, company A, company B, company C, company D and company E. The optical properties of the two glasses were compared according to the data from five automotive glass companies, and the relevant data were plotted as histograms.
The refractive indexes and the visible light transmittances of the two glasses are stably distributed and almost equal. The overall refractive index of the soda-lime-silica glass is slightly larger than that of the high alumina-silica glass, but the refractive index of the high alumina-silica glass is averagely higher than the national standard of 0.20ND and accords with the design standard. For visible light transmittance, the high-alumina-silica glass is superior to soda-lime-silica glass and is averagely higher than the national standard by 20 percent. The data of the two images are combined to determine that the optical properties of the two glasses are not greatly different and both meet the national standard.
Referring to fig. 4 and 5, it can be seen that the relevant data is plotted according to two glass mechanical property parameters provided by five companies. The comparative analysis shows that the compressive strength of the high-alumina-silica glass is much stronger than that of the soda-lime-silica glass, and the average difference is 50 MPa. However, the compressive strength of soda-lime-silica glass is more stable than that of high-alumina-silica glass, which may be caused by different mastery degrees of ion exchange enhancement treatment technologies by manufacturers, but the compressive strength of the high-alumina-silica glass is better than that of the soda-lime-silica glass on the whole. From the data in FIGS. 3-5, it can be seen that the flexural strength of both glasses fluctuates widely, with the high alumina silica glass of company E having a flexural strength of 87.2MPa and the soda-lime-silica glass having a flexural strength of 90.5 MPa. The reason for this is that, in addition to the great fluctuations in the flexural strength caused by the glass itself, it may also be relevant to the level of technology and production technology, but high alumino-silica glasses are overall superior to soda-lime-silica glasses.
Through the four groups of data comparison and analysis, the visible light transmittance, compressive strength and flexural strength of the high-alumina-silica glass are superior to those of soda-lime-silica glass, and the refractive index of the high-alumina-silica glass is slightly inferior to that of the soda-lime-silica glass but meets the national standard. Therefore, the design of light weight can be realized by reducing the thickness of the front windshield glass under the condition that the optical performance and the mechanical performance are both satisfied by replacing the soda-lime-silica glass with the high-alumina-silica glass with the thickness of 1.2mm for 2.0 mm.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. An automotive front windshield comprising: the front windshield glass is characterized by comprising green glass positioned on an outer layer, a PVB film positioned on an intermediate interlayer and high-alumina-silica-glass positioned on an inner layer, wherein the green glass is 2.0mm thick, the PVB film is 0.76mm thick, the high-alumina-silica-glass is 1.2mm thick, the barrier angle of each A column is less than or equal to 6 degrees in the arrangement area of the peripheral black edges of the front windshield glass, the covering width of the peripheral black edges of the front windshield glass is more than or equal to 5mm, the gap of the peripheral black edges of the front windshield glass is more than or equal to 3mm, and the inclination angle of the front windshield glass is controlled within the range of 32-34 degrees.
2. An automotive front windscreen according to claim 1 wherein the thickness of the windscreen is 3.96mm and the dimensions of the panel of the windscreen are 1509.9321mm x 1069.1514mm in length by width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022327198.8U CN214083791U (en) | 2020-10-19 | 2020-10-19 | Automobile front windshield glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022327198.8U CN214083791U (en) | 2020-10-19 | 2020-10-19 | Automobile front windshield glass |
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| Publication Number | Publication Date |
|---|---|
| CN214083791U true CN214083791U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022327198.8U Active CN214083791U (en) | 2020-10-19 | 2020-10-19 | Automobile front windshield glass |
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| Country | Link |
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| CN (1) | CN214083791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223987A (en) * | 2020-10-19 | 2021-01-15 | 长春一汽富维东阳汽车塑料零部件有限公司 | Automobile front windshield glass and front windshield glass molding surface checking standard method |
-
2020
- 2020-10-19 CN CN202022327198.8U patent/CN214083791U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223987A (en) * | 2020-10-19 | 2021-01-15 | 长春一汽富维东阳汽车塑料零部件有限公司 | Automobile front windshield glass and front windshield glass molding surface checking standard method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.2555, Guanggu street, high tech Development Zone, Changchun City, Jilin Province Patentee after: CHANG Chun FAWAY TONG YANG AUTOMOBILE Plastic Components Co.,Ltd. Country or region after: China Address before: No.2555, Guanggu street, high tech Development Zone, Changchun City, Jilin Province Patentee before: CHANGCHUN FAWAY TONG YANG AUTOMOBILE PLASTICS COMPONENTS CO.,LTD. Country or region before: China |
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| CP03 | Change of name, title or address |