Coated glass with ultra-low energy consumption and three-glass two-cavity hollow glass applying same

Abstract

The utility model provides ultra-low energy consumption coated glass and three-glass two-cavity hollow glass applying the same, the ultra-low energy consumption coated glass comprises a glass substrate and a coating layer, and the coating layer sequentially comprises a first layer of bottom film, a second layer of barrier film, a third layer of silver film, a fourth layer of barrier film, a fifth layer of antireflection film and a sixth layer of protective film; wherein the first layer of bottom film is a film layer of which the innermost side is tightly attached to the glass substrate, and the sixth layer of protection film is a film layer of the outermost side; the thickness range of the third layer of silver film is 10-16 nanometers; the semi-spherical radiance of the surface of the glass is effectively reduced, the visible light transmittance is maintained and even improved, the lighting degree of a residential building is enhanced, the heat transfer coefficient is further reduced, the shading coefficient is improved, the heat preservation and heat insulation effects of the glass are enhanced, the indoor constant temperature and the human body comfort are improved, and the air-conditioning refrigeration energy consumption in summer and the heating energy consumption in winter are reduced.

Description

Technical Field

[0001] The utility model relates to the field of coated glass, in particular to an ultra-low energy consumption coated glass and a three-glass two-cavity insulating glass using the same. Background Art

[0002] As an irreplaceable functional element for building lighting, the energy-saving index of glass doors and windows has also been adjusted accordingly, requiring further improvement of visible light transmittance and shading coefficient, and further reduction of heat transfer coefficient. There are two main aspects of glass energy-saving design: one is the application of multi-cavity insulating glass, and the other is the development and application of Low-e coated glass. Especially the latter is the main application means to improve the energy-saving efficiency of glass.

[0003] The common film structure of existing Low-e coated glass is as follows: Figure 1 As shown, the coating layer 20 on the glass substrate 10 has a total of 5 layers, namely, a base film 201, a barrier film 202, a silver film 203, a barrier film 204, and a protective film 205; the thickness of the third silver film is about 8 mm. The existing LOW-E film structure is relatively simple and mature. However, in view of the design standards of new ultra-low energy consumption residential buildings, even if the conventional highest-transmittance LOW-E glass is used, its visible light transmittance is still not high enough, and after synthetic hollowing, it cannot meet the standard requirement of more than 60%. At the same time, after synthetic hollowing, its heat transfer coefficient can only be around 0.85, which cannot meet the requirement that the heat transfer coefficient of the entire window of ultra-low energy consumption glass is less than 1.4. Therefore, it is necessary to develop an ultra-low energy consumption coated glass. Utility Model Content

[0004] In order to solve the problem that the current Low-e coated glass cannot meet the newly stipulated ultra-low energy consumption residential building design standards, the utility model proposes an ultra-low energy consumption coated glass and a three-glass two-cavity insulating glass using the same.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ultra-low energy consumption coated glass comprises a glass substrate and a coating layer, wherein the coating layer is a six-layer structure, and the coating layer comprises, in order, a first base film, a second barrier film, a third silver film, a fourth barrier film, a fifth anti-reflection film, and a sixth protective film; wherein the first base film is the innermost film layer closely attached to the glass substrate, and the sixth protective film is the outermost film layer; the thickness of the third silver film is in the range of 10 nanometers to 16 nanometers.

[0007] Preferably, the fifth antireflection film is a zinc tin oxide film or a zinc oxide film.

[0008] Preferably, the fifth antireflection film has a thickness of 8-30 nanometers.

[0009] Preferably, the thickness of the third silver film is 12-14 nanometers.

[0010] Preferably, the fourth barrier film has a thickness of 1.8-2.2 nanometers.

[0011] Preferably, the first base film and the sixth protective film are both selected from one of a titanium oxide layer, a niobium oxide layer, a zirconium oxide layer, a silicon oxide layer, a niobium nitride layer, a zirconium nitride layer and a silicon nitride layer.

[0012] Preferably, the second barrier film layer and the fourth barrier film layer are both selected from one of a tin oxide layer, a zinc oxide layer, a zinc tin oxide layer, and a nickel-chromium alloy layer.

[0013] Preferably, the glass substrate is selected from ordinary float glass, ultra-clear float glass, and tinted glass.

[0014] Preferably, the glass substrate has a thickness of 2-15 nanometers.

[0015] A three-glass two-cavity insulating glass comprises a first glass layer, a second glass layer, and a third glass layer which are arranged in sequence and in a balanced manner; sealing support strips are arranged between the first glass layer and the second glass layer, and between the second layer and the third layer to form a first cavity and a second cavity; the first glass layer, the second glass layer, and the third glass layer are all the ultra-low energy consumption coated glass described in any one of the above items.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: a silver layer thickened to 10-16 nanometers is creatively adopted as a functional layer, which can effectively reduce the hemispherical emissivity of its surface; at the same time, a fifth anti-reflection film layer is newly added on the basis of the traditional film layer structure to offset the problem of reduced visible light transmittance caused by the thickening of the silver layer; the ultra-low energy consumption coated glass of the utility model can not only improve the visible light transmittance and enhance the daylighting of residential buildings, but also further reduce the heat transfer coefficient, increase the shading coefficient, enhance the thermal insulation effect of the glass, improve the indoor constant temperature and human comfort, and reduce the energy consumption of air conditioning in summer and heating in winter.

[0017] The three-glass two-chamber insulating glass made of the coated glass of the utility model can have a visible light transmittance of about 65% or more, meeting the requirement of the ultra-low energy consumption residential building design standard of more than 60%; the heat transfer coefficient reaches about 0.75, which can meet the requirement of the heat transfer coefficient of the whole glass window being less than 1.4; the shading coefficient reaches 0.6-0.7, which can meet the requirement of the ultra-low energy consumption residential building design standard of more than 0.6. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of traditional coated glass;

[0020] Figure 2 This is a schematic diagram of the structure of the coated glass of the utility model;

[0021] Figure 3 The present invention is a three-glass two-cavity glass structure diagram using the ultra-low energy consumption coated glass of the utility model.

[0022] in Figure 1 In the figure, the conventional coated glass has a glass substrate 10, a coating layer 20, a base film 201, a second barrier film 202, a third silver film 203, a fourth barrier film 204, and a fifth protective film 205;

[0023] Figure 2 In the utility model, the ultra-low energy consumption coated glass 100 comprises a glass substrate 1, a coating layer 2, a first bottom film 21, a second barrier film 22, a third silver film 23, a fourth barrier film 24, a fifth antireflection film 25, and a sixth protective film 26;

[0024] Figure 3 In the utility model, the ultra-low energy consumption coated glass 100 and the sealing support strip 200 are provided. DETAILED DESCRIPTION

[0025] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.

[0026] Please refer to Figure 2 An ultra-low energy consumption coated glass comprises a glass substrate 1 and a coating layer 2, wherein the coating layer 2 is a six-layer structure, and the coating layer 2 comprises, in order, a first bottom film 21, a second barrier film 22, a third silver film 23, a fourth barrier film 24, a fifth anti-reflection film 25, and a sixth protective film 26; wherein the first bottom film 21 is the innermost film layer closely attached to the glass substrate 1, and the sixth protective film 26 is the outermost film layer; the thickness of the third silver film 23 is in the range of 10 nanometers to 16 nanometers.

[0027] Reference Figure 1 and Figure 2The conventional coating layer 20 has five layers, of which the third layer of silver film 203 is used as a functional layer. The ultra-low energy consumption coated glass of the utility model improves the coating layer 2 on the glass substrate 1, increases the thickness of the third layer of silver film 23 from the conventional 8 nanometers to 10-16 nanometers, and adds a fifth layer of anti-reflection film 25. The thickening of the nano silver layer as a functional layer can effectively reduce the hemispherical emissivity of its surface; at the same time, due to the thickening of the silver layer, the projection ratio of the Low-e glass, which originally has a low visible light transmittance, will be reduced, and the added fifth layer of anti-reflection film 25 can effectively improve the visible light transmittance.

[0028] In one embodiment, the fifth anti-reflection film 25 is a zinc tin oxide film or a zinc oxide film, which can achieve a good anti-reflection effect and enhance the effect of preventing the third silver film 23 from being oxidized.

[0029] In one embodiment, the fifth antireflection film 25 has a thickness of 8-30 nanometers.

[0030] In one embodiment, the thickness of the third silver film 23 is 12-14 nanometers, 15 nanometers, and 16 nanometers. After actual trial production and testing, the third silver film 23 within this thickness range has the best effect of reducing the hemispherical emissivity, and can achieve the purpose of effectively reducing the heat transfer coefficient and improving the sunshade coefficient.

[0031] In one embodiment, the thickness of the fourth barrier film 24 is 1.8-2.2 nanometers, preferably, 2 nanometers.

[0032] In one embodiment, the first base film 21 and the sixth protection film 26 are both selected from one of titanium oxide layer, niobium oxide layer, zirconium oxide layer, silicon oxide layer, niobium nitride layer, zirconium nitride layer and silicon nitride layer.

[0033] In one embodiment, the second barrier film 22 and the fourth barrier film 24 are both selected from one of a tin oxide layer, a zinc oxide layer, a zinc tin oxide layer, and a nickel-chromium alloy layer.

[0034] In one embodiment, the glass substrate 1 is selected from ordinary float glass, ultra-clear float glass, and tinted glass. The thickness of the glass substrate 1 is 2-15 nanometers.

[0035] Please refer to Figure 2 and Figure 3 A three-glass two-cavity insulating glass comprises a first glass layer, a second glass layer, and a third glass layer which are arranged in a balanced manner in sequence, and a sealing support strip 200 is arranged between the first glass layer and the second glass layer, and between the second layer and the third layer to form a first cavity and a second cavity; the first glass layer, the second glass layer, and the third glass layer are all the ultra-low energy consumption coated glass 100 described above.

[0036] The three-glass two-chamber insulating glass produced by the ultra-low energy consumption coated glass of the utility model can have a visible light transmittance of about 65% or more, meeting the requirement of the ultra-low energy consumption residential building design standard of more than 60%, while the traditional film layer cannot meet this requirement and can only reach about 58% at most; the heat transfer coefficient reaches about 0.75, which can meet the requirement that the heat transfer coefficient of the whole glass window is less than 1.4, while the traditional Low-e coated glass can only reach about 0.85, which cannot meet the ultra-low energy consumption residential building design standard; the shading coefficient reaches 0.6-0.7, which can meet the requirement of the ultra-low energy consumption residential building design standard of more than 0.6, while the traditional Low-e coated glass can only reach about 0.58 at most, which cannot meet the requirement.

[0037] In summary, the ultra-low energy consumption coated glass of the utility model and the three-glass two-chamber insulating glass produced using the same can not only improve the visible light transmittance and enhance the lighting of residential buildings, but also further reduce the heat transfer coefficient, improve the shading coefficient, enhance the thermal insulation effect of the glass, improve the indoor temperature stability and human comfort, and reduce the energy consumption of air conditioning and cooling in summer and heating in winter.

[0038] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0039] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. An ultra-low energy consumption coated glass, characterized in that: The invention comprises a glass substrate and a coating layer, wherein the coating layer has a six-layer structure, and the coating layer comprises, in order, a first base film, a second barrier film, a third silver film, a fourth barrier film, a fifth anti-reflection film, and a sixth protective film; wherein the first base film is the innermost film layer closely attached to the glass substrate, and the sixth protective film is the outermost film layer; and the thickness of the third silver film is in the range of 10-16 nanometers.

2. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The fifth antireflection film is a zinc tin oxide film or a zinc oxide film.

3. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The thickness of the fifth antireflection film is 8-30 nanometers.

4. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The thickness of the third silver film is 12-14 nanometers.

5. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The thickness of the fourth barrier film is 1.8-2.2 nanometers.

6. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The first base film and the sixth protective film are both selected from one of a titanium oxide layer, a niobium oxide layer, a zirconium oxide layer, a silicon oxide layer, a niobium nitride layer, a zirconium nitride layer, and a silicon nitride layer.

7. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The second barrier film layer and the fourth barrier film layer are both selected from one of a tin oxide layer, a zinc oxide layer, a zinc tin oxide layer, and a nickel-chromium alloy layer.

8. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The glass substrate is selected from ordinary float glass, ultra-clear float glass and tinted glass.

9. The ultra-low energy consumption coated glass according to claim 1, characterized in that: The thickness of the glass substrate is 2-15 nanometers.

10. A three-glass two-chamber insulating glass, characterized in that: The invention comprises a first glass layer, a second glass layer, and a third glass layer which are arranged in a balanced manner in sequence, wherein sealing support strips are arranged between the first glass layer and the second glass layer, and between the second layer and the third layer to form a first cavity and a second cavity; the first glass layer, the second glass layer, and the third glass layer are all the ultra-low energy consumption coated glass described in any one of claims 1 to 7.

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