Colorless energy-saving tempered glass

Abstract

This utility model discloses a colorless, temperable, energy-saving coated glass, comprising a glass substrate and a bottom dielectric layer, a second dielectric layer, a third dielectric layer, a first barrier layer, a transparent conductive low-emissivity functional layer, a second barrier layer, a fourth dielectric layer, a fifth dielectric layer, and a sixth dielectric layer sequentially stacked on one surface of the glass substrate; the transparent conductive low-emissivity functional layer is a metal oxide semiconductor material layer with a light transmittance between 75% and 85% and a reflectance between 5% and 30%, featuring high transmittance and low reflectance, suitable for various scenarios with high lighting requirements.

Description

Technical Field

[0001] This utility model belongs to the field of coated glass technology, specifically relating to a colorless temperable energy-saving coated glass. Background Technology

[0002] Coated glass is a special type of glass that has one or more layers of metal, metal oxide, dielectric, or composite thin films deposited on its surface using physical or chemical methods, giving it specific functions (such as energy saving, optical control, conductivity, and self-cleaning). Its performance can be precisely designed through the film material, structure, and thickness, and it is widely used in construction, automotive, electronics, photovoltaic, and other fields.

[0003] In pursuit of decorative properties, many colored coated glasses have emerged in the market. While these glasses offer excellent decorative effects, their low transmittance fails to meet the requirements of various scenarios with high lighting demands.

[0004] For example, Chinese patent CN 219792833 U discloses a silver-free Low-E coated glass with medium to low transmittance, comprising a glass substrate and a silver-free film layer. The silver-free film layer includes a bottom dielectric layer, a second dielectric layer, a first barrier layer, a transparent conductive low-emissivity functional layer, a second barrier layer, and an upper dielectric layer, which are sequentially stacked on the glass substrate. The visible light transmittance of the silver-free Low-E coated glass disclosed in this patent is adjustable between 20% and 70%, which is relatively low and cannot meet the requirements of various scenarios with high lighting needs. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a colorless temperable energy-saving coated glass with a light transmittance between 75% and 85% and a reflectance between 5% and 30%, which has the characteristics of high transmittance and low reflectance.

[0006] The technical solution adopted by this utility model is as follows:

[0007] This utility model provides a colorless temperable energy-saving coated glass, including a glass substrate and a bottom dielectric layer, a second dielectric layer, a third dielectric layer, a first barrier layer, a transparent conductive low-emissivity functional layer, a second barrier layer, a fourth dielectric layer, a fifth dielectric layer, and a sixth dielectric layer sequentially stacked on one surface of the glass substrate; the transparent conductive low-emissivity functional layer is a metal oxide semiconductor material layer.

[0008] The transparent conductive low-emissivity functional layer is one of the following: ITO layer, AZO layer, ATO layer, TNO layer, and FTO layer.

[0009] The thickness of the transparent conductive low-emissivity functional layer is 10nm~100nm.

[0010] The bottom dielectric layer, the fifth dielectric layer, and the sixth dielectric layer are one of the following: metal nitride layer, metal oxide layer, metal oxynitride layer, non-metal nitride layer, non-metal oxide layer, and non-metal oxynitride layer.

[0011] The thickness of the bottom dielectric layer is 5~90nm.

[0012] The second dielectric layer, the third dielectric layer, and the fourth dielectric layer are metal oxide layers or non-metal oxide layers.

[0013] The thicknesses of the second dielectric layer, the third dielectric layer, and the fourth dielectric layer are 10~60nm, 5~30nm, and 5~30nm, respectively.

[0014] The first barrier layer and the second barrier layer are metal alloy layers or metal oxide layers.

[0015] The thickness of both the first and second barrier layers is 3~8nm.

[0016] The thickness of the fifth and sixth dielectric layers is 10~80nm.

[0017] The colorless, temperable, energy-saving coated glass provided by this invention has a bottom dielectric layer that serves as a transition layer between the glass substrate and the upper film system. By matching the optical parameters of the glass and subsequent functional layers, it reduces interface reflection and improves light transmittance. The second to sixth dielectric layers increase visible light transmittance through the interference effect of multiple dielectric films, while reflecting mid- and far-infrared thermal radiation and suppressing near-infrared light, thus reducing solar thermal radiation entering the room. The first barrier layer isolates alkali metal ions in the glass substrate from diffusing into the functional layers, preventing the conductive layer from experiencing increased resistance or performance degradation due to ion contamination. It also protects the transparent conductive low-emissivity functional layer from the stress caused by defects on the glass substrate surface, improving the mechanical stability of the film layer. The second barrier layer protects the transparent conductive low-emissivity functional layer from oxidation or wear during subsequent tempering processes. As an interface buffer layer between the dielectric layer and the functional layer, it reduces film cracking caused by differences in thermal expansion coefficients. The transparent conductive low-emissivity functional layer enables the glass to achieve both low emissivity and conductivity.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The colorless temperable energy-saving coated glass provided by this utility model can achieve a light transmittance of over 75% through the cooperation of various film layers. After tempering, it can be used as a single piece and is suitable for various scenarios with high lighting requirements. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of the colorless temperable energy-saving coated glass provided by this utility model, wherein 10-glass substrate, 201-bottom dielectric layer, 202-second dielectric layer, 203-third dielectric layer, 204-first barrier layer, 205-transparent conductive low-emissivity functional layer, 206-second barrier layer, 207-fourth dielectric layer, 208-fifth dielectric layer, and 209-sixth dielectric layer. Detailed Implementation

[0021] This utility model provides a colorless, temperable, energy-saving coated glass, comprising a glass substrate and a bottom dielectric layer 201, a second dielectric layer 202, a third dielectric layer 203, a first barrier layer 204, a transparent conductive low-emissivity functional layer 205, a second barrier layer 206, a fourth dielectric layer 207, a fifth dielectric layer 208, and a sixth dielectric layer 209 sequentially stacked on one surface of the glass substrate 10; wherein the transparent conductive low-emissivity functional layer is a metal oxide semiconductor material layer.

[0022] The transparent conductive low-emissivity functional layer is preferably one of ITO layer, AZO layer, ATO layer, TNO layer, and FTO layer.

[0023] The thickness of the transparent conductive low-emissivity functional layer is 10nm~100nm.

[0024] The bottom dielectric layer, the fifth dielectric layer, and the sixth dielectric layer are one of the following: a metal nitride layer, a metal oxide layer, a metal oxide nitride layer, a non-metal nitride layer, a non-metal oxide layer, and a non-metal oxide nitride layer, preferably a Si3N4 layer or a TiO2 layer. x One of the following: layer, ZnSnO2 layer, and SiO2 layer.

[0025] The thickness of the bottom dielectric layer is 5~90nm.

[0026] The second, third, and fourth dielectric layers are metal oxide layers or non-metal oxide layers, preferably TiO2. x One of the following: layer, SiO2 layer, ZnO layer, ZrO2 layer, Y2O3 layer, Al2O3 layer, and Nb2O5 layer.

[0027] The thicknesses of the second dielectric layer, the third dielectric layer, and the fourth dielectric layer are 10~60nm, 5~30nm, and 5~30nm, respectively.

[0028] The first barrier layer and the second barrier layer are metal alloy layers or metal oxide layers, preferably NiCr layers or NiCrO2 layers.

[0029] The thickness of both the first and second barrier layers is 3~8nm.

[0030] The thickness of the fifth and sixth dielectric layers is 10~80nm.

[0031] The present invention will now be described in detail with reference to the embodiments.

[0032] The film structure and thickness of the colorless temperable energy-saving coated glass provided in each embodiment and comparative example are shown in Tables 1-3.

[0033] Table 1. Structure of the coated glass in Example 1

[0034]

[0035] Table 2 shows the structure of the coated glass in Example 2.

[0036]

[0037] Table 3. Structure of the coated glass in Example 3

[0038]

[0039] The performance of the coated glass in the above embodiments is shown in Table 4.

[0040] Table 4

[0041]

[0042] As can be seen from Table 4, the coated glass provided by this utility model has a transmittance of over 75% and is colorless.

[0043] The above detailed description of a colorless temperable energy-saving coated glass with reference to the embodiments is illustrative rather than limiting. Several embodiments can be listed according to the defined scope. Therefore, changes and modifications without departing from the overall concept of this utility model should be within the protection scope of this utility model.

Claims

1. A colorless, temperable, energy-saving coated glass, characterized in that, It includes a glass substrate and a bottom dielectric layer, a second dielectric layer, a third dielectric layer, a first barrier layer, a transparent conductive low-emissivity functional layer, a second barrier layer, a fourth dielectric layer, a fifth dielectric layer, and a sixth dielectric layer sequentially stacked on one surface of the glass substrate. The transparent conductive low-emissivity functional layer is a metal oxide semiconductor material layer.

2. The colorless temperable energy-saving coated glass according to claim 1, characterized in that, The transparent conductive low-emissivity functional layer is one of the following: ITO layer, AZO layer, ATO layer, TNO layer, and FTO layer.

3. The colorless temperable energy-saving coated glass according to claim 1, characterized in that, The thickness of the transparent conductive low-emissivity functional layer is 10nm~100nm.

4. The colorless temperable energy-saving coated glass according to any one of claims 1-3, characterized in that, The bottom dielectric layer, the fifth dielectric layer, and the sixth dielectric layer are one of the following: metal nitride layer, metal oxide layer, metal oxynitride layer, non-metal nitride layer, non-metal oxide layer, and non-metal oxynitride layer.

5. The colorless temperable energy-saving coated glass according to any one of claims 1-3, characterized in that, The thickness of the bottom dielectric layer is 5~90nm.

6. The colorless temperable energy-saving coated glass according to any one of claims 1-3, characterized in that, The second dielectric layer, the third dielectric layer, and the fourth dielectric layer are metal oxide layers or non-metal oxide layers.

7. The colorless temperable energy-saving coated glass according to any one of claims 1-3, characterized in that, The thicknesses of the second dielectric layer, the third dielectric layer, and the fourth dielectric layer are 10~60nm, 5~30nm, and 5~30nm, respectively.

8. The colorless temperable energy-saving coated glass according to any one of claims 1-3, characterized in that, The first barrier layer and the second barrier layer are metal alloy layers or metal oxide layers.

9. The colorless temperable energy-saving coated glass according to any one of claims 1-3, characterized in that, The thickness of both the first and second barrier layers is 3~8nm.

10. The colorless temperable energy-saving coated glass according to any one of claims 1-3, characterized in that, The thickness of the fifth and sixth dielectric layers is 10~80nm.

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