A temperable offline Low-E coated glass

Abstract

The utility model relates to the technical field of coated glass, and in particular to a temperable offline Low-E coated glass, comprising an inner layer of glass, an outer layer of glass installed above the inner layer of glass, the inner layer of glass comprising a first glass, a connection groove is provided on the upper surface of the first glass, an overflow groove is provided on the upper surface of the first glass, the overflow groove is located on the inner side of the connection groove, and the outer layer of glass comprises a second glass, and the second glass is located above the first glass. The utility model has a reasonable structure, the coated glass is formed by combining two glasses, and a hollow cavity for sealing is formed in the middle, which can protect the film layer on the surface of the glass and improve the service life of the coated glass, without the need to add an additional protective layer.

Description

Technical Field

[0001] The utility model relates to the field of coated glass, in particular to temperable off-line Low-E coated glass. Background Art

[0002] Low-E glass, or low-emissivity glass, is a coated glass that not only has a high visible light transmittance, but also has a strong infrared blocking property, and can play the dual role of natural lighting and heat insulation and energy saving. After use, it can effectively reduce the loss of indoor heat in winter, and in summer, it can also block the secondary radiation of outdoor objects after being heated by the sun, thereby achieving the purpose of energy saving and consumption reduction.

[0003] In order to protect the Low-E film layer on the surface of the existing coated glass from being damaged by oxidation and losing its proper functions, it is necessary to add an additional protective layer on the surface of the Low-E film layer of the glass. Adding an additional protective layer is relatively cumbersome. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a temperable off-line Low-E coated glass.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temperable offline Low-E coated glass, comprising an inner layer of glass, an outer layer of glass is installed above the inner layer of glass, the inner layer of glass comprises a first glass, a connecting groove is provided on the upper surface of the first glass, an overflow groove is provided on the upper surface of the first glass, the overflow groove is located on the inner side of the connecting groove, the outer layer of glass comprises a second glass, and the second glass is located above the first glass.

[0006] As a further description of the above technical solution:

[0007] A first protective film is disposed on the upper surface of the first glass, and a second protective film is disposed on the lower surface of the second glass.

[0008] As a further description of the above technical solution:

[0009] Adhesive is arranged inside the connection groove.

[0010] As a further description of the above technical solution:

[0011] The first protective film is a zinc oxide protective film layer, and the thickness of the first protective film is 30 nm.

[0012] As a further description of the above technical solution:

[0013] The second protective film is a silicon nitride protective film layer, and the thickness of the second protective film is 20 nm.

[0014] As a further description of the above technical solution:

[0015] The structure of the connecting groove is an annular structure, and the structure of the overflow groove is an annular structure.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the temperable offline Low-E coated glass has an inner layer of glass and an outer layer of glass. When in use, a proper amount of glue is first filled in the connecting groove on the first glass, and then the second glass is placed on the first glass for squeezing. The glue connects the first glass and the second glass to form a sealed hollow cavity between the first glass and the second glass. Some excess glue flows inward from the connecting groove to the overflow groove, and will not affect the hollow cavity between the first glass and the second glass. Compared with conventional coated glass, in order to protect the surface Low-E film layer from being oxidized and damaged and losing its due function, it is necessary to add an additional protective layer on the surface of the glass Low-E film layer. The coated glass is formed by combining two glasses, and a hollow cavity for sealing is formed in the middle, which can protect the film layer on the surface of the glass and improve the service life of the coated glass without adding an additional protective layer.

[0018] 2. Compared with the prior art, this temperable offline Low-E coated glass, through the inner glass and the outer glass, when in use, the sunlight will first act on the zinc oxide protective film layer, the zinc oxide protective film layer will absorb and shield most of the ultraviolet rays, and then the light will act on the silicon nitride protective film layer, which can reduce the silicon nitride protective layer due to the low expansion coefficient of the film layer The larger interface stress and the poor adhesion to the substrate problem, the first protective layer and the second protective layer together have a better filtering effect on light. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a temperable offline Low-E coated glass proposed by the utility model;

[0020] Figure 2 This is a cross-sectional view of the internal structure of a temperable offline Low-E coated glass proposed by the utility model;

[0021] Figure 3 The utility model proposes a temperable offline Low-E coated glass Figure 2 A magnified view of the structure at center;

[0022] Figure 4 The utility model provides a schematic diagram of the inner glass structure of a temperable offline Low-E coated glass.

[0023] Legend:

[0024] 1. Inner glass; 101. First glass; 102. Connecting groove; 103. Overflow groove; 104. First protective film; 2. Outer glass; 201. Second glass; 202. Second protective film. DETAILED DESCRIPTION

[0025] Reference Figure 1-4 The utility model provides a temperable offline Low-E coated glass: comprising an inner layer of glass 1, an outer layer of glass 2 is installed above the inner layer of glass 1, the inner layer of glass 1 comprises a first glass 101, a connecting groove 102 is provided on the upper surface of the first glass 101, adhesive is filled in the connecting groove 102 to connect the inner layer of glass 1 and the outer layer of glass 2 together, an overflow groove 103 is provided on the upper surface of the first glass 101, when the inner layer of glass 1 and the outer layer of glass 2 are connected together, part of the excess adhesive will flow into the overflow groove 103, and will not affect other parts of the inner layer of glass 1 and the outer layer of glass 2, the overflow groove 103 is located on the inner side of the connecting groove 102, adhesive is arranged inside the connecting groove 102, the structure of the connecting groove 102 is annular, and the structure of the overflow groove 103 is annular, which is convenient for forming a hollow space between the inner layer of glass 1 and the outer layer of glass 2 Cavity, the outer glass 2 includes a second glass 201, and the second glass 201 is located above the first glass 101. Both the first glass 101 and the second glass 201 are tempered glass. When in use, first fill a proper amount of glue in the connecting groove 102 on the first glass 101, and then put the second glass 201 on the first glass 101 for squeezing. The glue will connect the first glass 101 and the second glass 102, and form a sealed hollow cavity between the first glass 101 and the second glass 102. Some excess glue will flow inward from the connecting groove 102 to the overflow groove 103, and will not affect the hollow cavity between the first glass 101 and the second glass 102. The coated glass is formed by combining two glasses, and a hollow cavity for sealing is formed in the middle, which can protect the film layer on the glass surface and improve the service life of the coated glass.

[0026] The upper surface of the first glass 101 is provided with a first protective film 104, which is a zinc oxide protective film layer, and has a thickness of 30nm. The average particle size of nano zinc oxide VK-J30 is about 30 nanometers, which can transmit the visible light of the sun and absorb most of the ultraviolet light. Therefore, the glass coated with the zinc oxide film has a strong ultraviolet shielding function. The lower surface of the second glass 201 is provided with a second protective film 202, which is a silicon nitride protective film layer, and has a thickness of 20nm. The refractive index of silicon nitride is between 20nm and 10nm. Between silicon and silicon, there is a lower refractive index, a larger band gap and a wide range of transparent optical windows, which covers the visible light to mid-infrared bands, and the zinc oxide protective film layer is in front of the silicon nitride protective film layer, which will absorb and block most of the ultraviolet rays, and then the light will act on the silicon nitride protective film layer, which can reduce the large interface stress of the silicon nitride protective film due to the low expansion coefficient of the film layer. The zinc oxide protective film layer and the silicon nitride protective film layer can cooperate to better filter the light. The first protective film 104 and the second protective film 202 are both coated by offline vacuum cathode magnetron sputtering.

[0027] Working principle: When in use, first fill the connecting groove 102 on the first glass 101 with a proper amount of glue, and then put the second glass 201 on the first glass 101 for squeezing. The glue will connect the first glass 101 and the second glass 102, and form a sealed hollow cavity between the first glass 101 and the second glass 102. Some excess glue will flow inward from the connecting groove 102 to the overflow groove 103, and will not affect the hollow cavity between the first glass 101 and the second glass 102. Compared with conventional coated glass, in order to protect the surface Low-E film layer from being oxidized and damaged and losing its due function, it is necessary to add an additional protective layer on the surface of the glass Low-E film layer. The coated glass is formed by combining two glasses, and a hollow cavity for sealing is formed in the middle, which can protect the film layer on the glass surface and improve the service life of the coated glass.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperable offline Low-E coated glass, comprising an inner layer of glass (1), characterized in that: An outer layer of glass (2) is installed above the inner layer of glass (1), the inner layer of glass (1) comprises a first glass (101), a connection groove (102) is provided on the upper surface of the first glass (101), an overflow groove (103) is provided on the upper surface of the first glass (101), the overflow groove (103) is located on the inner side of the connection groove (102), and the outer layer of glass (2) comprises a second glass (201), and the second glass (201) is located above the first glass (101).

2. The temperable offline Low-E coated glass according to claim 1, characterized in that: A first protective film (104) is disposed on the upper surface of the first glass (101), and a second protective film (202) is disposed on the lower surface of the second glass (201).

3. The temperable offline Low-E coated glass according to claim 1, characterized in that: Adhesive is provided inside the connection groove (102).

4. The temperable offline Low-E coated glass according to claim 2, characterized in that: The first protective film (104) is a zinc oxide protective film layer, and the thickness of the first protective film (104) is 30 nm.

5. The temperable offline Low-E coated glass according to claim 2, characterized in that: The second protective film (202) is a silicon nitride protective film layer, and the thickness of the second protective film (202) is 20 nm.

6. The temperable offline Low-E coated glass according to claim 1, characterized in that: The structure of the connecting groove (102) is an annular structure, and the structure of the overflow groove (103) is an annular structure.

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