Water pressure trigger melting type automobile windshield and automobile falling-into-river self-rescue system

Abstract

The invention discloses a water pressure triggering melting type automobile windshield and an automobile falling-into-river self-rescue system, relates to the technical field of automobile safety, and solves the technical problem that in an existing technical scheme, a windshield cannot be automatically and safely melted to provide a safe escape channel. Comprising a glass base layer, a molten salt layer and a protective layer, the molten salt layer is fixedly installed between the glass base layer and the protective layer, the protective layer is installed on the outer side of the molten salt layer, and the molten salt layer is of a low-melting-point molten salt mixing structure. When the water pressure reaches a specific threshold value, the melting or crushing process is automatically started, and the timeliness and the automation degree of escape are greatly improved; the molten salt layer rapidly reaches a melting point to be molten under high water pressure and water flow heat conduction, the glass base layer is easily broken by water pressure after losing support, and an emergency escape channel is opened for passengers; the molten salt layer melts to form a liquid environment, buffering and wrapping effects are achieved when the glass is broken, and escape is safer.

Description

Technical Field

[0001] The invention relates to the field of automobile safety technology, and specifically relates to a water pressure-triggered melting automobile windshield and a self-rescue system for automobiles falling into a river. Background Art

[0002] In the technical field involved in the invention of the present invention, accidentally falling into a river during driving is a relatively dangerous situation. Traditional automobile windshields generally use high-strength tempered glass or laminated glass. Although these materials have good impact resistance, their strong characteristics will become an escape obstacle after the vehicle falls into the river, making it difficult for people in the car to escape in time. Existing devices such as airbags can only buffer the impact force to a certain extent and cannot effectively solve the problem of glass hindering escape. Even if ordinary glass changes in water due to immersion, it cannot melt quickly under a specific water pressure, making it impossible to achieve quick escape. Therefore, there is an urgent need for a new type of windshield that can automatically melt or be easily shattered when the car falls into water and reaches a certain water pressure, so as to provide a more direct and effective escape route for people in the car.

[0003] To address this need, devices that automatically shatter windshields for self-rescue after a vehicle falls into water have emerged. These devices automatically or rapidly shatter the windshield after a vehicle falls into water by sensing water pressure, angle changes, or manual activation, providing a way to escape. Compared to traditional glass systems and safety buffers, automatic shattering devices offer greater automation and emergency response capabilities, and can be combined with non-splashing shattering technology to increase safety during escape.

[0004] The technology of automatically shattering or melting windshields can not only significantly increase the probability of survival of passengers in extreme situations such as the car falling into water, but also effectively reduce the risk of accidental injury or even death.

[0005] The existing technical solutions have the technical problem of being unable to automatically and safely melt the windshield to provide a safe escape route. Invention content

[0006] In response to the shortcomings of the existing technology, the present invention provides a water pressure-triggered melting car windshield and a car fall-in-river self-rescue system, which solves the technical problem that the existing technical solutions cannot automatically and safely melt the windshield to provide a safe escape route.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a water pressure-triggered melting automobile windshield, comprising a glass base, a molten salt layer and a protective layer, wherein the molten salt layer is fixedly installed between the glass base and the protective layer, and the protective layer is installed on the outside of the molten salt layer. The molten salt layer is a low-melting-point molten salt mixed structure, and the molten salt layer can melt rapidly under pressure. A micro-convex structure is provided on the outer surface of the protective layer, and water flow channels are provided between the micro-convex structures; the glass base: adopts high-strength tempered glass to provide basic structural support and protection for the glass; the molten salt layer: when subjected to a certain water pressure, the molten salt layer can melt rapidly; the protective layer: covers the outside of the molten salt layer, is used to protect the molten salt layer from erosion and damage from the external environment, and at the same time can guide the water flow to concentrate on the molten salt layer under the action of water pressure.

[0008] Preferably, the molten salt layer is made of potassium nitrate, sodium chloride and sodium nitrite in a ratio of 3:5:2, and the melting point of the lava layer at normal pressure is 200-300°C.

[0009] Preferably, the protective layer is made of a heat-resistant polymer material, and the protective layer is made of polytetrachloroethylene or polyimide.

[0010] Preferably, the glass substrate has a thickness of 3-5 mm, and the molten salt layer has a thickness of 2-4 mm.

[0011] Preferably, the protective layer and the glass substrate are bonded together by a high-strength adhesive, and the lava layer is sealed between the glass substrate and the protective layer.

[0012] The protective layer is made of polytetrafluoroethylene (PTFE) and is formed by injection molding or hot pressing. The micro-protrusion structure has a height of 50-100 μm and a spacing of 200-200 μm. The recessed areas between adjacent micro-protrusions form water flow channels.

[0013] High-strength tempered glass was selected as the glass substrate material, and a glass substrate with a thickness of 4 mm was prepared through a conventional tempered glass manufacturing process.

[0014] Potassium nitrate, sodium chloride, and sodium nitrite are accurately weighed in a mass ratio of 3:5:2 and placed in a mixing container. Stirring thoroughly mixes the mixture to form a molten salt mixture. The molten salt mixture is then heated to 150-200°C to melt it into a liquid state. The mixture is then sealed between a glass substrate and a protective layer using a mold forming or infusion process, forming a 3mm thick molten salt layer.

[0015] Finally install the car windshield on the car.

[0016] A water pressure-triggered melting car fall-into-river self-rescue system. When a car equipped with a water pressure-triggered melting car windshield falls into water, a pressure difference is formed between the external water and the inner side of the windshield. The water pressure gradually increases, and the protective layer begins to deform. When the high-pressure water passes through the water flow channel, the molten salt layer quickly reaches the melting point and melts under the corresponding water pressure and the heat conduction of the water. After the molten salt layer melts, it loses its supporting function. The glass base layer shatters under the internal and external pressure difference, and forms a buffering effect in the liquid environment of the melted molten salt layer, which will not splash and injure people, thereby providing a relatively safe escape space for people in the car, facilitating the escape of people in the car.

[0017] Beneficial effects

[0018] The present invention provides a water-pressure-triggered melting automobile windshield and a self-rescue system for vehicles falling into rivers. This invention utilizes the change in water pressure when a vehicle falls into water and can automatically initiate the melting or shattering process when the water pressure reaches a specific threshold without human intervention, greatly improving the timeliness and automation of escape. The molten salt layer quickly reaches its melting point under high water pressure and water heat conduction, and the glass base layer is easily shattered by the water pressure after losing its support, opening an emergency escape route for the occupants. The tempered glass base layer is encapsulated in a multi-layer structure to ensure good strength and durability in daily use and can withstand general impacts and external forces. The molten salt layer melts to form a liquid environment, which acts as a buffer and wrap when the glass shatters, effectively reducing the risk of secondary injury to the occupants from glass splashing, and making escape safer. This system is designed specifically for vehicles falling into water, compensating for the shortcomings of ordinary impact-resistant glass that is difficult to shatter underwater and cannot be used for timely escape. The outer protective layer is equipped with micro-protrusions and water flow channels to enhance water pressure concentration and diversion, improve the system's response rate and uniformity, and ensure more reliable triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention provides a schematic cross-sectional structure diagram of a water pressure-triggered melting automobile windshield and a self-rescue system for automobiles falling into a river.

[0020] Figure 2 This is a schematic diagram of the convex point structure of the water pressure-triggered melting automobile windshield and the automobile falling into the river self-rescue system created by the present invention.

[0021] In the figure: 1. Glass substrate; 2. Molten salt layer; 3. Protective layer; 4. Micro-protrusion structure; 5. Water flow channel; DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The detailed description is as follows.

[0023] See also Figure 1-2 The present invention provides a technical solution: a water pressure-triggered melting automobile windshield, comprising a glass base, a molten salt layer and a protective layer, wherein the molten salt layer is fixedly installed between the glass base and the protective layer, and the protective layer is installed on the outside of the molten salt layer. The molten salt layer is a low-melting-point molten salt mixed structure, and the molten salt layer can melt rapidly under pressure. A micro-convex structure is provided on the outer surface of the protective layer, and water flow channels are provided between the micro-convex structures; the glass base: adopts high-strength tempered glass to provide basic structural support and protection for the glass; the molten salt layer: when subjected to a certain water pressure, the molten salt layer can melt rapidly; the protective layer: covers the outside of the molten salt layer, is used to protect the molten salt layer from erosion and damage from the external environment, and at the same time, can guide the water flow to concentrate on the molten salt layer under the action of water pressure.

[0024] This embodiment is further configured such that the molten salt layer is made of potassium nitrate, sodium chloride and sodium nitrite in a ratio of 3:5:2, and the melting point of the lava layer at normal pressure is 200-300°C.

[0025] This embodiment is further configured such that the protective layer is made of a heat-resistant polymer material, and the protective layer is made of polytetrachloroethylene or polyimide.

[0026] This embodiment is further configured such that the glass substrate has a thickness of 3-5 mm and the molten salt layer has a thickness of 2-4 mm.

[0027] This embodiment is further configured such that the protective layer and the glass substrate are bonded together by a high-strength adhesive, and the lava layer is sealed and encapsulated between the glass substrate and the protective layer.

[0028] The protective layer is made of polytetrafluoroethylene (PTFE) and is formed by injection molding or hot pressing. The micro-protrusion structure has a height of 50-100 μm and a spacing of 200-200 μm. The recessed areas between adjacent micro-protrusions form water flow channels.

[0029] High-strength tempered glass was selected as the glass substrate material, and a glass substrate with a thickness of 4 mm was prepared through a conventional tempered glass manufacturing process.

[0030] Potassium nitrate, sodium chloride, and sodium nitrite are accurately weighed in a mass ratio of 3:5:2 and placed in a mixing container. Stirring thoroughly mixes the mixture to form a molten salt mixture. The molten salt mixture is then heated to 150-200°C to melt it into a liquid state. The mixture is then sealed between a glass substrate and a protective layer using a mold forming or infusion process, forming a 3mm thick molten salt layer.

[0031] Finally install the car windshield on the car.

[0032] A water pressure-triggered melting car fall-into-river self-rescue system. When a car equipped with a water pressure-triggered melting car windshield falls into water, a pressure difference is formed between the external water and the inner side of the windshield. The water pressure gradually increases, and the protective layer begins to deform. When the high-pressure water passes through the water flow channel, the molten salt layer quickly reaches the melting point and melts under the corresponding water pressure and the heat conduction of the water. After the molten salt layer melts, it loses its supporting function. The glass base layer shatters under the internal and external pressure difference, and forms a buffering effect in the liquid environment of the melted molten salt layer, which will not splash and injure people, thereby providing a relatively safe escape space for people in the car, facilitating the escape of people in the car.

[0033] The detailed connection means are well known in the art; Figure 1-2 As shown above, the specific implementation method of this technical solution is as follows: high-strength tempered glass is selected as the glass substrate material. Using conventional tempered glass manufacturing processes, the original glass sheet is cut to the required size and then tempered, ultimately producing a tempered glass substrate with a thickness of 3-5mm. Tempering improves the mechanical strength and impact resistance of the glass, providing basic support and safety for the entire structure.

[0034] (1) Raw material ratio and mixing

[0035] Accurately weigh potassium nitrate, sodium chloride, and sodium nitrite in a mass ratio of 3:5:2. Mix the three ingredients thoroughly to ensure uniform distribution of the components.

[0036] (2) Melting and molding

[0037] The mixed raw materials are placed in a high-temperature resistant reactor and heated to 150-200°C to fully melt them to form a low-melting-point molten salt mixture.

[0038] The melted salt is then sealed between the glass substrate and a protective layer using a mold or infusion process, forming a 2-4mm thick layer. This entire process must be carried out in a dust-free environment to prevent impurities from entering and affecting the performance of the molten salt.

[0039] A transparent, high-temperature resistant polymer material, such as polytetrafluoroethylene (PTFE) or polyimide, is selected and an injection molding or hot pressing molding process is adopted to prepare a protective layer with a thickness of 1-2 mm.

[0040] Micro-protrusions are fabricated on the outer surface of the protective layer using a mold or micro-nanofabrication process. The micro-protrusions are 50-100 μm high and 200-200 μm apart. The depressions between adjacent micro-protrusions form water channels, helping to quickly concentrate and transfer water under pressure to the molten salt layer.

[0041] The prepared glass base layer, molten salt layer and protective layer are stacked in sequence and bonded with a high-strength water-resistant adhesive to ensure that each layer is tightly combined and the edges are sealed to prevent the molten salt layer from leaking or getting wet.

[0042] After assembly, the entire windshield is tested for size and sealing to ensure it meets the requirements for vehicle installation and use.

[0043] Install the assembled water pressure triggered melting windshield on the front windshield of the car. The installation method is compatible with ordinary windshield.

[0044] During normal vehicle operation, the glass base and protective layer provide daily protection for occupants. If the car accidentally falls into a body of water, the external water pressure is transmitted to the molten salt layer through the water flow channels on the surface of the protective layer. The combined effects of water pressure and heat conduction cause the molten salt layer to rapidly melt. The unsupported glass base shatters under the pressure differential between the inside and outside, creating a safe escape route. The liquid molten salt also acts as a buffer for glass fragments, preventing them from splashing and injuring people.

[0045] The overall size and shape of the windshield can be customized according to different vehicle models and installation space to meet the adaptation of multiple vehicle models; the purity, thickness and process parameters of each material must be strictly controlled during the preparation process to ensure that each layer of material meets the design standards and guarantees the overall performance; the molten salt layer and protective layer materials must have good weather resistance and corrosion resistance to ensure long-term stable operation in various environments such as high temperature, low temperature, and humidity; the finished product must pass multiple safety tests such as pressure resistance, impact resistance, and heat resistance to ensure its reliability and safety under extreme working conditions; for other extreme application scenarios, the molten salt formula, protective layer structure, etc. can be optimized and adjusted to adapt to different triggering pressures or environmental requirements.

[0046] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0047] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A water pressure triggered melting automobile windshield, comprising a glass substrate, a molten salt layer and a protective layer, characterized in that: The molten salt layer is fixedly installed between the glass base layer and the protective layer. The protective layer is installed on the outside of the molten salt layer. The molten salt layer is a low-melting-point molten salt mixed structure. The molten salt layer can melt quickly under pressure. Micro-protrusion structures are provided on the outer surface of the protective layer, and water flow channels are provided between the micro-protrusion structures.

2. A water pressure triggered melting automobile windshield according to claim 1, characterized in that The molten salt layer is made of potassium nitrate, sodium chloride and sodium nitrite in a ratio of 3:5:2, and the melting point of the lava layer at normal pressure is 200-300°C.

3. The water pressure triggered melting automobile windshield according to claim 1, characterized in that The protective layer is made of heat-resistant polymer material, and the protective layer is made of polytetrachloroethylene or polyimide.

4. The water pressure triggered melting automobile windshield according to claim 1, characterized in that The thickness of the glass base layer is 3-5 mm, and the thickness of the molten salt layer is 2-4 mm.

5. The water pressure triggered melting automobile windshield according to claim 1, characterized in that The protective layer and the glass substrate are bonded by a high-strength adhesive, and the lava layer is sealed between the glass substrate and the protective layer.

6. A water pressure triggered melting type car falling into the river self-rescue system, characterized by When the car equipped with a water pressure-triggered melting windshield falls into water, a pressure difference is formed between the external water and the inside of the windshield. The water pressure gradually increases, and the protective layer begins to deform. When the high-pressure water passes through the water flow channel, the molten salt layer quickly reaches the melting point and melts under the corresponding water pressure and the heat conduction of the water. After the molten salt layer melts, it loses its supporting function. The glass base layer shatters under the pressure difference between the inside and the outside, and forms a buffering effect in the liquid environment of the melted molten salt layer, which will not splash and injure people, thereby providing a relatively safe escape space for people in the car, facilitating the escape of people in the car.

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