Large-radius front windshield for automobiles

Abstract

The application relates to a large-radian front windshield of an automobile, characterized in that the windshield glass is in a round-corner rectangular structure and adopts high-curvature laminated glass, so that the visual field range of a driver is greatly widened, and compared with a traditional front windshield, the side and oblique front visual field blind area is significantly reduced; and a sealing unit is arranged around the edge of the windshield glass and is used for sealing connection of the windshield glass and a front windshield frame of the automobile. The technical scheme optimizes the front windshield of the automobile, widens the visual field and reduces the blind area by adopting the round-corner rectangular high-curvature laminated glass, the sealing unit is designed in an H type and is combined with special glue to enhance the sealing property, the driving and riding comfort is improved, the glass is thickened in multiple layers and the PVB film enhances the impact resistance, the sealing unit is supplemented with a reinforcing material and is more durable, and the performance and reliability are comprehensively improved.

Description

Technical Field

[0001] This application relates to the field of automotive parts manufacturing technology, and in particular to a large-radius windshield for automobiles. Background Technology

[0002] With the development of the automotive industry, consumers' demands for driving safety and riding experience are constantly increasing, making the performance optimization of automotive windshields crucial. Traditional automotive windshields are mostly flat or slightly curved designs, resulting in large blind spots to the sides and diagonally forward, affecting the driver's observation of the surrounding environment and increasing driving safety hazards. Simultaneously, in terms of sealing performance, traditional sealing structures are prone to gaps, leading to rainwater leakage, dust intrusion, and significant wind noise, reducing in-vehicle comfort and airtightness. Furthermore, the glass's strength and impact resistance are insufficient, making it difficult to withstand external impacts under complex road conditions. Therefore, there is an urgent need to develop a technological solution for automotive windshields that combines a wide field of vision, high sealing performance, and strong safety. Utility Model Content

[0003] In view of this, this application proposes a large-curvature windshield for automobiles, characterized by comprising: a windshield glass and a sealing unit. The windshield glass has a rounded rectangular structure and uses high-curvature laminated glass, which greatly widens the driver's field of vision, significantly reducing blind spots to the sides and diagonally forward compared to traditional windshields. The sealing unit is disposed around the edge of the windshield glass for sealing the connection between the windshield glass and the front windshield frame of the automobile.

[0004] In one possible implementation, the high-curvature laminated glass includes at least one bottom layer, at least one top layer, and at least one PVB film layer, wherein the bottom and top layers are made of glass, and the PVB film layer is disposed between the bottom and top layers.

[0005] In one possible implementation, the sealing unit has an H-shaped cross-section, with the width of one groove in the H-shaped cross-section being the same as the thickness of the windshield, and the width of the other groove in the H-shaped cross-section being the same as the width of the car's front windshield frame.

[0006] In one possible implementation, the thickness of the bottom and top layers is at least 3 mm.

[0007] In one possible implementation, the sealing unit is made of rubber.

[0008] In one possible implementation, the rubber of the vertical edge portion of the sealing unit cross-section is reinforced with additional material.

[0009] In one possible implementation, the radius of curvature of the high-curvature laminated glass ranges from 400 to 500 mm.

[0010] In one possible implementation, the connection between the windshield and the sealing unit is joined by butyl rubber.

[0011] In one possible implementation, the connection between the windshield and the sealing unit is joined by polyurethane sealant.

[0012] In one possible implementation, the connection between the windshield and the sealing unit is bonded using silicone structural adhesive.

[0013] The beneficial effects of this utility model are:

[0014] This technical solution addresses the shortcomings of traditional automotive windshields in terms of visibility, sealing, and safety. It optimizes the structure and materials to deliver significant benefits: The use of rounded-corner rectangular high-curvature laminated glass greatly expands the driver's side and forward visibility, effectively reducing blind spots, increasing the driving observation range, and lowering the risk of accidents; the sealing unit adopts an H-shaped cross-section design, precisely fitting the glass to the vehicle frame, and is bonded with butyl rubber, polyurethane, or silicone structural adhesive, significantly enhancing sealing performance, preventing rainwater leakage and dust intrusion, reducing wind noise, and improving driving comfort; the multi-layered structure of the laminated glass and the design of a minimum 3mm thickness in the bottom and top layers, combined with a PVB film layer, enhances the glass's strength and impact resistance, preventing fragmentation; the sealing unit uses rubber material with added reinforcement, balancing elastic cushioning and durability, extending service life, and comprehensively improving the performance and reliability of the automotive windshield.

[0015] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0017] Figure 1 This diagram illustrates the main structure of a car's large-arc windshield according to an embodiment of this application.

[0018] Figure 2 This diagram shows the structure of the windshield according to an embodiment of the present application;

[0019] Figure 3 A structural diagram of the sealing unit according to an embodiment of this application is shown. Detailed Implementation

[0020] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0021] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0023] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0024] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0025] specifically refer to Figure 1-3 This utility model relates to a large-curvature windshield for automobiles, applied in the field of automotive parts manufacturing technology / equipment. Its structure includes a windshield glass 101 and a sealing unit 102. The windshield glass 101 has a rounded rectangular structure and uses high-curvature laminated glass, greatly widening the driver's field of vision. Compared to traditional windshields, blind spots to the sides and diagonally forward are significantly reduced. Through its high-curvature design and specific shape, the driver's field of vision is optimized, improving driving safety and the driving experience. The sealing unit 102 is arranged around the edge of the windshield glass 101 and is used for a sealed connection between the windshield glass 101 and the vehicle's front windshield frame. This ensures a tight connection between the windshield glass 101 and the vehicle frame, preventing rainwater and dust from entering the vehicle interior, while also reducing wind noise and improving interior sealing and comfort.

[0026] In one possible implementation, the high-curvature laminated glass includes at least one bottom layer 201, at least one top layer 202, and at least one PVB film layer 203. The bottom layer 201 and the top layer 202 are made of glass, and the PVB film layer 203 is disposed between the bottom layer 201 and the top layer 202. The PVB film layer 203 has good adhesion and toughness, firmly bonding the bottom layer 201 and the top layer 202 glass together. Upon impact, it can prevent glass fragments from flying, improving safety; at the same time, the multi-layer structure enhances the strength and sound insulation of the glass.

[0027] In one possible implementation, the sealing unit 102 has an H-shaped cross-section. The width of one groove in the H-shaped cross-section is the same as the thickness of the windshield 101, and the width of the other groove in the H-shaped cross-section is the same as the width of the car's front windshield frame. The H-shaped structure can precisely fit the windshield 101 and the car body frame, achieving seamless embedding, enhancing connection stability, further improving the sealing effect, and preventing water leakage and dust ingress caused by gaps.

[0028] In one possible implementation, the thickness of the bottom layer 201 and the top layer 202 is at least 3mm. This ensures that the laminated glass has sufficient strength and impact resistance to withstand external forces such as stone impacts and wind pressure during daily driving, thus extending its service life.

[0029] In one possible implementation, the sealing unit 102 is made of rubber. Rubber material has good elasticity and weather resistance, can adapt to different ambient temperature changes, and maintain sealing performance; at the same time, its softness can buffer vibrations between the glass and the vehicle body, reducing abnormal noises.

[0030] In one possible implementation, the rubber of the vertical edge portion 301 of the sealing unit 102 cross-section is reinforced with a reinforcing material. The reinforcing material can enhance the mechanical strength and wear resistance of the vertical edge portion, prevent deformation or damage caused by compression and friction during long-term use, extend the service life of the sealing unit 102, and continuously ensure the sealing effect.

[0031] In one possible implementation, the radius of curvature of the high-curvature laminated glass ranges from 400 to 500 mm. Within this radius of curvature, a large arc design can be achieved to broaden the field of vision, while ensuring the structural stability of the glass during processing and use, avoiding stress concentration or installation compatibility problems caused by excessive curvature.

[0032] In one possible implementation, the windshield 101 and the sealing unit 102 are joined by butyl rubber. Butyl rubber has excellent airtightness and watertightness, which can form a tight sealing layer at the joint to effectively prevent water vapor penetration; at the same time, its good adhesion can enhance the bonding strength between the glass and the sealing unit 102.

[0033] In one possible implementation, the connection between the windshield 101 and the sealing unit 102 is achieved using polyurethane sealant. Polyurethane sealant possesses high strength, high elasticity, and good aging resistance, allowing it to adapt to temperature changes and vibrations, maintaining a stable sealing effect over a long period. Furthermore, the cured sealant layer exhibits good toughness, effectively buffering the stress between the glass and the sealing unit 102.

[0034] In one possible implementation, the windshield 101 and the sealing unit 102 are joined by silicone structural adhesive. Silicone structural adhesive has excellent weather resistance and UV resistance, making it resistant to aging and cracking during long-term outdoor use; simultaneously, its high-strength bonding properties ensure a firm connection between the glass and the sealing unit 102, improving the overall structural reliability.

[0035] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A large-arc windshield for automobiles, characterized in that, include: Windshield and sealing unit; The windshield has a rounded rectangular structure and is made of high-curvature laminated glass. The windshield greatly expands the driver's field of vision, and compared with the traditional windshield, the blind spots in the side and diagonal front vision are significantly reduced. The sealing unit is arranged around the edge of the windshield and is used to seal the windshield to the front windshield frame of the vehicle.

2. The large-arc windshield for automobiles according to claim 1, characterized in that, The high curvature laminated glass includes at least one bottom layer, at least one top layer, and at least one PVB film layer, wherein the bottom layer and the top layer are made of glass, and the PVB film layer is disposed between the bottom layer and the top layer.

3. The large-arc windshield for automobiles according to claim 1, characterized in that, The sealing unit has an H-shaped cross-section. The width of one groove in the H-shaped cross-section is the same as the thickness of the windshield, and the width of the other groove in the H-shaped cross-section is the same as the width of the car's front windshield frame.

4. A large-arc windshield for automobiles according to claim 2, characterized in that, The thickness of the bottom layer and the top layer is at least 3 mm.

5. A large-arc windshield for automobiles according to claim 3, characterized in that, The sealing unit is made of rubber.

6. A large-arc windshield for automobiles according to claim 5, characterized in that, The rubber of the vertical edge portion of the sealing unit cross-section is reinforced with additional material.

7. A large-arc windshield for automobiles according to claim 1, characterized in that, The radius of curvature of the high-curvature laminated glass ranges from 400 to 500 mm.

8. A large-arc windshield for automobiles according to claim 1, characterized in that, The windshield and the sealing unit are joined by butyl rubber.

9. A large-arc windshield for automobiles according to claim 1, characterized in that, The connection between the windshield and the sealing unit is made by polyurethane sealant.

10. A large-arc windshield for automobiles according to claim 1, characterized in that, The windshield and the sealing unit are joined together with silicone structural adhesive.

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