High-temperature-resistant and steelable double-silver low-emissivity coated glass

Abstract

The utility model discloses a kind of high-temperature-resistant toughenable double-silver low-emissivity coated glass, it relates to coated glass technical field, the high-temperature-resistant toughenable double-silver low-emissivity coated glass includes glass main body, glass main body is composed of base layer, double-silver low-emissivity coated structure and protective layer, double-silver low-emissivity coated structure is set between base layer and protective layer.The high-temperature-resistant toughenable double-silver low-emissivity coated glass sets double-silver low-emissivity coated structure at the top of toughened glass, can improve the overall performance of glass under the use of double-silver low-emissivity coated structure overall structure, and hollow glass structure is set at the top of double-silver film layer, the essence is through the composite mechanism of film layer reflection radiant heat and hollow layer blocking conduction heat, equivalent to build heat preservation layer in glass, this design not only significantly improves heat insulation performance, but also can give consideration to sound insulation, safety and energy saving, and then through the synergistic effect of film layer optical property and hollow structure thermal resistance, improve the comprehensive performance of glass.

Description

Technical Field

[0001] This utility model relates to the field of coated glass technology, specifically to a high-temperature resistant, temperable, double-silver, low-emissivity coated glass. Background Technology

[0002] In the field of architecture and decoration, coated glass is widely used due to its excellent optical and thermal properties. However, existing coated glass still has many performance bottlenecks in practical use.

[0003] Traditional single-silver or multi-silver low-emissivity coated glass, while capable of reflecting radiant heat to some extent, offers limited thermal insulation, failing to meet increasingly stringent building energy efficiency standards. In high-temperature environments, heat still conducts through the glass into the room, increasing air conditioning energy consumption. In low-temperature environments, heat is easily lost, hindering the provision of a stable indoor temperature. Regarding sound insulation, most coated glass relies on a single glass material or simple film structure, resulting in weak noise reduction, particularly against high-frequency noises such as traffic and industrial noise. This makes it difficult to effectively reduce the volume of noise entering the room, failing to meet the demand for quiet living and working environments, thus reducing the overall performance of temperable double-silver low-emissivity coated glass. To address these shortcomings, we propose a high-temperature resistant temperable double-silver low-emissivity coated glass to solve these problems. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-temperature resistant temperable double silver low-emissivity coated glass, comprising a glass body, wherein the glass body is composed of a base layer, a double silver low-emissivity coated structure and a protective layer, wherein the double silver low-emissivity coated structure is disposed between the base layer and the protective layer;

[0005] The base layer provides stable foundation support for the double silver low-emissivity coating structure and the protective layer. The double silver low-emissivity coating structure improves the overall performance of the glass body. The protective layer is an insulated glass structure, which enhances the heat insulation performance of the glass body.

[0006] Preferably, the base layer is made of high-temperature resistant tempered glass sheet, and its surface has a micron-level uneven structure.

[0007] Preferably, the double silver low-emissivity coating structure includes a silver layer, a high-temperature resistant dielectric layer, a transition layer, a conductive underlayer, a first low-emissivity silver layer, an isolation layer, a second low-emissivity silver layer, and a wear-resistant protective layer, which are sequentially installed on top of the substrate.

[0008] Preferably, the silver film body and the high-temperature resistant dielectric layer form a film structure, and the transition layer, conductive bottom layer, first low-emissivity silver layer, isolation layer, second low-emissivity silver layer and wear-resistant protective layer form a double silver film structure.

[0009] Preferably, the silver film is arranged in a double-layer superposition, and the high-temperature resistant dielectric layer isolates the silver layer from contact with oxygen.

[0010] Preferably, the transition layer is made of silicon dioxide, the conductive bottom layer is made of azo compound, and the first low-emissivity silver layer is made of nanoscale material composed of silver atoms.

[0011] Preferably, the isolation layer is made of silicon nitride, the second low-emissivity silver layer is made of silver sulfide containing silver, and the wear-resistant protective layer is made of composite oxide material.

[0012] Preferably, the protective layer has an internal air structure filled with argon gas.

[0013] This utility model discloses a high-temperature resistant temperable double-silver low-emissivity coated glass, which has the following beneficial effects: By setting a double-silver low-emissivity coated structure on the top of the tempered glass, the overall performance of the glass can be improved under the use of the double-silver low-emissivity coated structure. The hollow glass structure set on the top of the double-silver film layer is essentially a composite mechanism of the film layer reflecting radiant heat and the hollow layer blocking conductive heat, which is equivalent to building a heat insulation layer inside the glass. This design not only significantly improves the heat insulation performance, but also takes into account sound insulation, safety and energy saving. In addition, the comprehensive performance of the glass is improved through the synergistic effect of the optical properties of the film layer and the thermal resistance of the hollow structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the layered structure of the glass body of this utility model;

[0017] Figure 3 This is a schematic diagram of the layered structure of the double silver low-emissivity coating structure of this utility model.

[0018] In the diagram: 1. Glass body; 11. Base layer; 12. Double silver low-emissivity coating structure; 121. Silver film body; 122. High-temperature resistant dielectric layer; 123. Transition layer; 124. Conductive bottom layer; 125. First low-emissivity silver layer; 126. Isolation layer; 127. Second low-emissivity silver layer; 128. Wear-resistant protective layer; 13. Protective layer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] This utility model discloses a high-temperature resistant, temperable, double-silver low-emissivity coated glass.

[0022] According to the appendix Figure 1-3 As shown, it includes a glass body 1, which is composed of a base layer 11, a double silver low-emissivity coating structure 12 and a protective layer 13. The double silver low-emissivity coating structure 12 is disposed between the base layer 11 and the protective layer 13.

[0023] The base layer 11 provides a stable foundation support for the double silver low-emissivity coating structure 12 and the protective layer 13. The double silver low-emissivity coating structure 12 improves the overall performance of the glass body 1. The protective layer 13 is an insulated glass structure, which improves the heat insulation performance of the glass body 1. The air layer inside the insulated glass can reduce the temperature gradient on the inner surface of the glass. In winter, it can reduce condensation on the indoor side of the glass surface, lower the condensation temperature, avoid mold growth and glass damage, and play a protective role for the glass body 1. All insulated glass is tempered glass, and the insulated structure can improve the overall impact resistance.

[0024] The base layer 11 is made of high-temperature resistant tempered glass sheet, and its surface forms a micron-level uneven structure. By micro-roughening the surface of the base layer 11, the adhesion between the double silver low-emissivity coating structure 12 and the base layer 11 can be enhanced, and the film layer can be prevented from falling off under high tempering temperature.

[0025] The double silver low-emissivity coating structure 12 includes a silver film body 121, a high-temperature resistant dielectric layer 122, a transition layer 123, a conductive bottom layer 124, a first low-emissivity silver layer 125, an isolation layer 126, a second low-emissivity silver layer 127, and a wear-resistant protective layer 128, which are sequentially installed on top of the base layer 11.

[0026] The silver film body 121 and the high-temperature resistant dielectric layer 122 form a film structure. The transition layer 123, the conductive bottom layer 124, the first low-emissivity silver layer 125, the isolation layer 126, the second low-emissivity silver layer 127 and the wear-resistant protective layer 128 form a double silver film structure. The double silver film reflects infrared rays through two layers of silver Ag, reducing the transfer of indoor and outdoor heat in the form of radiation.

[0027] The silver film substrate 121 is a double-layer stacked structure, using a high-purity silver target material with a thickness controlled at 8-12 nm. By employing a double-layer stacked structure, light transmittance is maintained while emissivity is reduced. A high-temperature resistant dielectric layer 122 isolates the silver layer from oxygen. This layer consists of a bottom layer, an intermediate layer, and a protective layer. The bottom layer serves as a conductive and thermally conductive buffer layer, enhancing the adhesion between the silver film substrate 121 and the double-silver film structure. The intermediate layer, with a thickness of 50-80 nm, is deposited alternately using magnetron sputtering to form a hard-soft-hard sandwich structure, isolating the silver layer from oxygen and preventing high-temperature oxidation. The protective layer, with a thickness of 10-15 nm, improves the film's wear resistance and chemical stability. The transition layer 123 is made of silicon dioxide and allows for adjustment of refractive index matching. To reduce light reflection and increase light transmittance, specific optical properties are achieved by optimizing the optical compatibility between different film layers and the glass substrate. At the same time, the adhesion and durability of the film layers are improved. The conductive bottom layer 124 is made of azo compound material. The conductive bottom layer 124 solves the problems of insufficient adhesion and easy oxidation and peeling between the silver layer and the glass substrate through physical bonding, chemical compatibility and structural support. At the same time, it also optimizes the conductive or optical properties. The first low-emissivity silver layer 125 is made of nanoscale material composed of silver atoms. The first low-emissivity silver layer 125 reflects mid- and far-infrared radiation. By selectively reflecting thermal radiation, a balance is achieved between energy saving and heat insulation and optical performance optimization. The silver layer reflects the long-wave infrared heat radiated by indoor objects and returns it to the room, reducing heat loss through the glass and reducing heating energy consumption.

[0028] The insulating layer 126 is made of silicon nitride. It prevents the silver layer from oxidizing and simultaneously regulates the visible light transmittance of the coated glass. Commonly used in architectural curtain walls and automotive glass, it is frequently exposed to outdoor environments. By protecting the silver layer, the insulating layer 126 significantly improves the glass's weather resistance, reduces performance degradation caused by silver oxidation, and lowers maintenance costs. The second low-emissivity silver layer 127 is made of silver sulfide containing silver. This layer further reduces the U-value and enhances energy efficiency through multiple heat reflection barriers. The wear-resistant protective layer 128 is made of composite oxide material. In coated glass, the surface continuously contacts and rubs against the rollers during tempering in the furnace, especially at the edges and corners where stress concentration can easily cause scratches and abrasions. The wear-resistant protective layer 128 is designed to prevent these damages. The wear-resistant protective layer 128 can resist mechanical impacts during the tempering process, providing mechanical protection for the glass body 1 and improving its performance. The protective layer 13 forms an air structure inside, typically 6-20mm thick, with low thermal conductivity, significantly reducing heat loss through conduction. It is filled with argon gas, further enhancing thermal resistance. By installing the protective layer 13 on top of the double silver film structure and adopting a hollow glass design, the double silver film reduces radiative heat transfer, while the hollow layer reduces convective and conductive heat transfer. The combination of these two factors significantly reduces the overall heat transfer coefficient, by more than 70% compared to single-layer glass, achieving an equivalent "insulation layer" effect. Furthermore, the synergistic effect of the film's optical properties and the hollow structure's thermal resistance enhances the overall performance of the glass.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant, temperable, double-silver low-emissivity coated glass, comprising a glass body (1), characterized in that: The glass body (1) is composed of a base layer (11), a double silver low-emissivity coating structure (12) and a protective layer (13), wherein the double silver low-emissivity coating structure (12) is disposed between the base layer (11) and the protective layer (13); The double silver low-emissivity coating structure (12) includes a silver film body (121), a high-temperature resistant dielectric layer (122), a transition layer (123), a conductive bottom layer (124), a first low-emissivity silver layer (125), an isolation layer (126), a second low-emissivity silver layer (127), and a wear-resistant protective layer (128) sequentially installed on top of the base layer (11).

2. The high-temperature resistant temperable double-silver low-emissivity coated glass according to claim 1, characterized in that: The base layer (11) is made of high-temperature resistant tempered glass sheet, and its surface forms a micron-level uneven structure.

3. The high-temperature resistant temperable double-silver low-emissivity coated glass according to claim 2, characterized in that: The silver film body (121) and the high-temperature resistant dielectric layer (122) form a film structure, and the transition layer (123), the conductive bottom layer (124), the first low-emissivity silver layer (125), the isolation layer (126), the second low-emissivity silver layer (127) and the wear-resistant protective layer (128) form a double silver film structure.

4. The high-temperature resistant temperable double-silver low-emissivity coated glass according to claim 3, characterized in that: The silver film body (121) is arranged in a double-layer superposition, and the high-temperature resistant dielectric layer (122) isolates the silver layer from contact with oxygen.

5. The high-temperature resistant temperable double-silver low-emissivity coated glass according to claim 4, characterized in that: The transition layer (123) is made of silicon dioxide, the conductive bottom layer (124) is made of azo compound, and the first low-emissivity silver layer (125) is made of nanoscale material composed of silver atoms.

6. The high-temperature resistant temperable double-silver low-emissivity coated glass according to claim 5, characterized in that: The isolation layer (126) is made of silicon nitride, the second low-emissivity silver layer (127) is made of silver sulfide containing silver, and the wear-resistant protective layer (128) is made of composite oxide material.

7. The high-temperature resistant temperable double-silver low-emissivity coated glass according to claim 6, characterized in that: The protective layer (13) has an air structure inside, which is filled with argon gas.

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