VACUUM DOUBLE LAYERED WINDSHIELD FOR AUTOMOBILES

Abstract

The vacuum double-layered windshield is an innovative automotive solution designed to enhance safety, thermal insulation, and acoustic damping. It features two glass panes—an inner laminated pane for structural strength and an outer tempered pane for durability—separated by a vacuum-sealed space that effectively eliminates heat transfer and sound transmission. This design minimizes the reliance on climate control systems, improving energy efficiency, particularly in electric vehicles. The vacuum layer also enhances the windshield's resistance to shattering, reducing injury risks during accidents. With added coatings for anti-fogging and anti-glare properties, this advanced windshield technology provides a superior driving experience by ensuring comfort, visibility, and safety for modern vehicles.

Specification

Description:The following specification particularly describes the invention and the manner it
is to be performed.
TECHNICAL FIELD
[001] The technical field of the invention pertains to automotive engineering, specifically focusing on the design and manufacturing of advanced windshield technologies. It involves the use of double-layered glass structures with a vacuum-sealed space to enhance thermal insulation, acoustic damping, and overall safety in vehicles. This innovation aims to improve energy efficiency, comfort, and visibility for drivers and passengers, contributing to the development of modern automobiles, including electric and autonomous vehicles.
BACKGROUND
[002] The automotive industry has seen a growing demand for advancements in windshield technology, driven by the need for improved vehicle safety, energy efficiency, and comfort. Traditional windshields often fall short in thermal insulation and noise reduction, leading to increased energy consumption, especially in electric vehicles that rely heavily on climate control systems.
[003] KR101334563B1 introduces a high-functional windshield design that incorporates multilayer interlayers to enhance visibility and reduce optical distortion. However, the precision required in its manufacturing can complicate production processes, suggesting a need for more scalable solutions that maintain performance without high manufacturing costs.
[004] KR101310022B1, which focuses on laminated safety glass using poly(vinylbutyral) interlayers. While this design improves structural integrity and safety, it does not adequately address thermal efficiency or sound insulation, indicating a research gap in creating windshields that can perform effectively across multiple criteria.
[005] US9266307B2 discusses the incorporation of conductive films in interlayers for heated glazing applications, aiming to improve comfort by preventing fogging. However, this approach consumes energy, which can diminish overall fuel efficiency, particularly in electric vehicles, thus prompting a search for alternatives that provide similar benefits without energy drawbacks.
[006] Advances in materials science have opened new avenues for windshield technology, particularly through the exploration of vacuum insulation principles. This method, akin to vacuum-sealed containers, can significantly enhance thermal insulation and soundproofing, addressing key shortcomings of traditional designs.
[007] The transition toward electric and autonomous vehicles emphasizes the need for innovations that improve energy efficiency and enhance user experience. A vacuum double-layered windshield could serve as a critical solution, offering superior insulation and acoustic damping without increasing energy consumption.
[008] Existing technologies primarily focus on either safety or comfort, often neglecting a holistic approach to windshield design. The integration of vacuum technology represents a novel approach that seeks to combine multiple benefits-thermal efficiency, sound reduction, and structural strength-into a single product.
[009] The background of this invention underscores the pressing need for improved windshield designs that meet modern automotive demands. The vacuum double-layered windshield aims to bridge existing gaps in thermal and acoustic performance, providing a comprehensive solution that enhances vehicle efficiency, safety, and comfort.
SUMMARY
[010] The vacuum double-layered windshield is an innovative automotive technology designed to enhance vehicle safety and energy efficiency by utilizing a unique construction of two glass layers separated by a vacuum-sealed space. This design significantly improves thermal insulation, preventing heat transfer and maintaining a stable internal temperature, which reduces reliance on climate control systems and extends the driving range of electric vehicles.
[011] In addition to thermal benefits, the vacuum layer provides superior soundproofing, effectively dampening external noise from wind, traffic, and road vibrations. This leads to a quieter cabin environment, enhancing overall comfort for drivers and passengers, particularly during long journeys or in urban settings with high noise levels.
[012] The enhanced structural integrity of the double-layered design also increases the windshield's resistance to shattering and minor impacts, thereby improving safety. In the event of an accident, the laminated glass construction helps prevent glass shards from causing injury, contributing to a safer driving experience.
[013] The invention is particularly relevant for the growing market of electric and autonomous vehicles, where energy efficiency and user comfort are critical. By integrating advanced materials and vacuum technology, this windshield design addresses existing limitations in conventional automotive glass while aligning with the industry's shift toward sustainability and enhanced performance.
[014] The vacuum double-layered windshield offers a comprehensive solution that combines improved insulation, noise reduction, and safety, making it a significant advancement in automotive technology that meets the demands of modern vehicles.
BRIEF DESCRIPTION OF THE DRAWINGS
[015] The foregoing detailed description of embodiments is better understood when read in conjunction with the appended drawings. For the purpose of illustrating of the present subject matter, an example of the construction of the present subject matter is provided as figures; however, the invention is not limited to the specific method disclosed in the document and the figures.
[016] The present subject matter is described in detail with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the drawings to refer to various features of the present subject matter.
[017] Figure 1 provides the working prototype of the invention.
[018] The given figures depict an embodiment of the present disclosure for illustration and better understanding only.
DETAILED DESCRIPTION
[019] Some of the embodiments of this disclosure, illustrating all its features, will now be discussed in detail. The words "comprising," "having," "containing," and "including," and other forms thereof, are intended to be equivalent in meaning and be open-ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items or meant to be limited to only the listed item or items. It must also be noted that as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise.
[020] The vacuum double-layered windshield is constructed from two primary glass panes, with a vacuum-sealed space in between, enhancing thermal insulation and acoustic properties. The inner pane is typically laminated for added strength and safety, while the outer pane is made of tempered glass to improve durability and minimize injury risks in case of breakage.
[021] The manufacturing process begins with high-precision bonding techniques that create an airtight seal around the edges of the glass panes, ensuring the vacuum layer is maintained. This involves advanced methods to prevent air infiltration, critical for the long-term performance of the windshield.
[022] Microscopic spacers are strategically placed between the glass layers to prevent them from collapsing under atmospheric pressure while avoiding interference with visibility or insulation performance. These spacers are crucial in maintaining the structural integrity of the windshield.
[023] In one embodiment it is provided that, the vacuum gap serves as an effective thermal insulator, significantly reducing heat transfer through conduction and convection. This allows the windshield to minimize heat loss in cold weather and heat gain in hot conditions, leading to less dependence on climate control systems.
[024] The improved thermal efficiency translates to energy savings, particularly in electric vehicles, where reduced reliance on heating and cooling systems can extend battery life and overall vehicle range, making the windshield highly beneficial for modern automotive applications.
[025] The acoustic properties of the vacuum layer contribute to superior sound insulation, as the absence of air prevents sound wave transmission. This feature results in a quieter cabin environment, enhancing the comfort of drivers and passengers, especially in noisy urban settings.
[026] In one embodiment it is provided, that the laminated inner layer combined with the tempered outer layer increases the windshield's resistance to shattering and impacts. This design minimizes the risk of glass shards during accidents, thereby enhancing the overall safety of vehicle occupants.
[027] The vacuum double-layered windshield addresses critical issues in traditional designs, such as condensation buildup and noise distraction, providing solutions that improve visibility and comfort during various driving conditions.
[028] This innovative windshield design aligns well with the current trends in the automotive industry, particularly in the context of electric and luxury vehicles, where energy efficiency and passenger comfort are paramount considerations.
[029] In one embodiment it is provided, that the manufacturing techniques used for the vacuum double-layered windshield can be streamlined for scalability and cost-effectiveness, allowing for the integration of this technology into mass production without significantly increasing costs.
[030] The implementation of this windshield technology has shown promising results in improving vehicle energy efficiency and comfort, demonstrating a clear advantage over conventional designs by enhancing overall driving experiences.
[031] In discussions about the invention, its potential to meet future regulatory standards for safety and environmental performance is significant, as it represents a forward-thinking solution that merges technological innovation with practical automotive needs.
[032] Referring to figure 1, depicts a vacuum double-layered windshield design featuring two distinct glass panes: the inner pane, which is laminated for strength and safety, and the outer pane, made of tempered glass to enhance durability and minimize the risk of injury upon breakage. Between these panes is a narrow vacuum gap, effectively eliminating air and thereby preventing heat transfer and sound transmission. The edges of the panes are sealed with high-precision bonding techniques to maintain the vacuum, while microscopic spacers are strategically positioned to prevent the panes from collapsing under atmospheric pressure. This innovative construction showcases the advanced technology aimed at improving thermal insulation, reducing external noise, and enhancing the overall safety of the vehicle, making it particularly suitable for electric and luxury cars.
, Claims:1. A vacuum double-layered windshield for automobiles, comprising:
A. an inner glass pane made of laminated glass for enhanced strength and safety;
B. an outer glass pane made of tempered glass for increased durability;
C. a vacuum-sealed space between the inner and outer glass panes that effectively prevents heat transfer and sound transmission;
D. an airtight seal around the edges of the glass panes to maintain the vacuum;
E. microscopic spacers positioned between the glass panes to prevent collapse under atmospheric pressure.
2. The vacuum double-layered windshield of claim 1, wherein the laminated inner glass pane comprises a polyvinyl butyral (PVB) interlayer to enhance shatter resistance.
3. The vacuum double-layered windshield of claim 1, wherein the tempered outer glass pane is treated with a coating to enhance scratch resistance and improve durability.
4. The vacuum double-layered windshield of claim 1, further comprising anti-fogging and anti-glare coatings on the inner surfaces of the glass panes to improve visibility.
5. The vacuum double-layered windshield of claim 1, wherein the vacuum-sealed space is maintained at a pressure significantly lower than atmospheric pressure to maximize thermal insulation properties.
6. The vacuum double-layered windshield of claim 1, wherein the microscopic spacers are made from a lightweight, non-compressible material that does not interfere with the visibility through the windshield.
7. The vacuum double-layered windshield of claim 1, wherein the design of the windshield is adapted to fit a specific model of electric or luxury vehicle to enhance aerodynamic performance.
8. The vacuum double-layered windshield of claim 1, wherein the manufacturing process includes automated high-precision bonding techniques to ensure consistent quality and scalability in production.

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