Online coated glass
By adopting a three-layer coating layer design in the online coated glass, combined with online sunlight and LOW-E coating technology, the existing online coated glass has high emissivity and high cost of offline coated glass, achieving lower emissivity and higher energy-saving effects, while reducing production costs.
Patent Information
- Application Number
- CN202421313329.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing online coated glass has a high emissivity, which is difficult to meet the needs of contemporary society for energy conservation, while offline coated glass is costly.
The online coated glass with a three-layer structure is adopted, including a glass substrate, a first silicon film layer, a metal tin film layer and a second silicon film layer. By setting a silicon film layer in the middle of the metal tin film layer, the sodium ions in the glass are isolated from the precipitation of sodium ions and avoiding the oxidation of the metal functional film layer, it is prepared in combination with online sunlight and LOW-E coating technology.
It reduces the emissivity of the glass, improves the energy-saving effect, and reduces production costs, avoids the oxidation of the metal functional film layer, and ensures sunshade performance.
Smart Images
Figure CN222613201U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glass coating, in particular to an online coated glass. Background Art
[0002] Glass doors, windows and curtain walls are essential components of buildings, and they undertake important functions such as lighting, perspective and building exterior decoration. In areas of my country where it is hot in summer and warm in winter, it is usually necessary to use solar control coated glass to adjust the shading coefficient, reduce the solar transmittance, and thus reduce the direct solar radiation heat entering the room, thereby saving energy and reducing consumption. At the same time, it fully blocks ultraviolet rays, reduces the damage of ultraviolet rays to objects, and greatly improves indoor comfort.
[0003] According to different production processes, coated glass is usually divided into online coated glass and offline coated glass. Online coated glass adopts chemical vapor deposition process to deposit oxide film under high temperature conditions. It has stable physical and chemical properties and excellent thermal processing performance, but its emissivity is relatively high and cannot meet the needs of energy conservation in contemporary buildings. Offline coated glass deposits metal materials on the surface of glass. It has low emissivity and better energy-saving effect. However, once the film surface is exposed to air for a long time, it will cause oxidation of the film layer. It must be used in a hollow manner, which is more expensive.
[0004] The above contents are only used to assist in understanding the technical solution of the present utility model and do not constitute an admission that the above contents are prior art. Utility Model Content
[0005] The main purpose of the utility model is to provide an online coated glass, aiming to solve the technical problem that the online coated products in the prior art are difficult to meet the demand for energy conservation in contemporary buildings, but the cost of using offline coated products is relatively high.
[0006] To achieve the above-mentioned purpose, the utility model provides an online coated glass, which includes a glass substrate and a coating layer covering the surface of the glass substrate, the coating layer includes a first silicon film layer, a metal tin film layer and a second silicon film layer, the first silicon film layer covers the surface of the glass substrate, the metal tin film layer covers the surface of the first silicon film layer, and the second silicon film layer covers the surface of the metal tin film layer.
[0007] Optionally, the metal tin film layer is made of tin oxide.
[0008] Optionally, both the first silicon film layer and the second silicon film layer are made of a preset silicon material.
[0009] Optionally, the thickness of the metal tin film layer is 65nm-75nm.
[0010] Optionally, the thickness of the first silicon film layer is 15nm-25nm.
[0011] Optionally, the second silicon film layer has a thickness of 10 nm-20 nm.
[0012] Optionally, the visible light transmittance of the online coated glass is 40%-60%.
[0013] Optionally, the solar transmittance of the online coated glass is 40%-60%.
[0014] Optionally, the shading coefficient of the online coated glass is 0.4-0.6.
[0015] Optionally, the glass substrate is white glass, and the thickness of the glass substrate is 5 mm.
[0016] In the utility model, the online coated glass includes a glass substrate and a coating layer covering the surface of the glass substrate, the coating layer includes a first silicon film layer, a metal tin film layer and a second silicon film layer, the first silicon film layer covers the surface of the glass substrate, the metal tin film layer covers the surface of the first silicon film layer, and the second silicon film layer covers the surface of the metal tin film layer. Compared with the high emissivity of online coating products, it is difficult to meet the needs of building energy conservation in contemporary society. Offline coating products have low emissivity and better energy-saving effects, but the cost is high. The utility model makes full use of the acid and alkali resistance, wear resistance and single-piece tempering properties of the sunlight-coated siliceous film layer, uses it as a dielectric layer, and covers the metal tin film layer in the middle, which can isolate the precipitation of sodium ions in the glass, avoid damaging the metal functional film layer, and avoid the metal functional film layer from being directly exposed to the air and oxidized, ensuring the sunshade performance. It can be prepared by online coating to reduce costs. In addition, the metal tin film layer deposited on the glass surface can reduce the emissivity and improve the energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural diagram of the first embodiment of the online coated glass of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the second embodiment of the online coated glass of the utility model.
[0019] Description of Figure Numbers:
[0020] Label name Label name 10 Glass substrate 202 Metal tin film 20 Coating layer 203 The second silicon film 201 The first silicon film
[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0026] Reference Figure 1 , Figure 1 The structure diagram of the first embodiment of the online coated glass of the utility model is shown in FIG. The utility model provides the first embodiment of the online coated glass.
[0027] In this embodiment, if Figure 1 As shown, the online coated glass includes a glass substrate 10 and a coating layer 20 covering the surface of the glass substrate 10, the coating layer 20 includes a first silicon film layer 201, a metal tin film layer 202 and a second silicon film layer 203, the first silicon film layer 201 covers the surface of the glass substrate 10, the metal tin film layer 202 covers the surface of the first silicon film layer 201, and the second silicon film layer 203 covers the surface of the metal tin film layer 202.
[0028] It should be noted that the coating layer 20 in this embodiment has a three-layer structure, which includes, from bottom to top, a first silicon film layer 201, a metal tin film layer 202 and a second silicon film layer 203. The first silicon film layer 201 and the second silicon film layer 203 serve as outer dielectric layers, and the metal tin film layer 202 serves as an intermediate metal functional film layer. The metal tin film layer 202 is located between the first silicon film layer 201 and the second silicon film layer 203, which can isolate the precipitation of sodium ions in the glass, avoid damaging the metal functional film layer, and prevent the metal functional film layer from being directly exposed to the air and oxidized, thereby ensuring the sunshade performance.
[0029] It can be understood that the present embodiment adopts a multi-layer online coating technology, combined with online sunlight and LOW-E coating technology, by arranging three coaters in the narrow section of the tin bath, the first coater coats the first silicon film layer 201 on the surface of the glass substrate 10, the second coater coats the metal tin film layer 202 on the surface of the first silicon film layer 201, and the third coater coats the second silicon film layer 203 on the surface of the metal tin film layer 202, thereby realizing the composite superposition of three film layers, and the online coating method can be adopted, with high output. Compared with the offline coating method, the coating cost is greatly reduced.
[0030] Furthermore, the visible light transmittance of the online coated glass is 40%-60%, the sunlight transmittance of the online coated glass is 40%-60%, and the shading coefficient of the online coated glass is 0.4-0.6.
[0031] In this embodiment, the online coated glass includes a glass substrate and a coating layer covering the surface of the glass substrate, the coating layer includes a first silicon film layer, a metal tin film layer and a second silicon film layer, the first silicon film layer covers the surface of the glass substrate, the metal tin film layer covers the surface of the first silicon film layer, and the second silicon film layer covers the surface of the metal tin film layer. This embodiment makes full use of the acid and alkali resistance, wear resistance and single-piece tempering properties of the sunlight-coated siliceous film layer, uses it as a dielectric layer, and covers the metal tin film layer in the middle, which can isolate the precipitation of sodium ions in the glass, avoid damaging the metal functional film layer, and avoid the metal functional film layer from being directly exposed to the air and oxidized, thereby ensuring the sunshade performance. It can be prepared by online coating to reduce costs. In addition, the metal tin film layer deposited on the glass surface can reduce the emissivity and improve the energy saving effect.
[0032] refer to Figure 2 , Figure 2 It is a structural schematic diagram of a second embodiment of an online coated glass of the utility model.
[0033] Based on the above first embodiment, the utility model proposes a second embodiment of online coated glass.
[0034] In this embodiment, the online coated glass includes a glass substrate 10 and a coating layer 20 covering the surface of the glass substrate 10, the coating layer 20 includes a first silicon film layer 201, a metal tin film layer 202 and a second silicon film layer 203, the first silicon film layer 201 covers the surface of the glass substrate 10, the metal tin film layer 202 covers the surface of the first silicon film layer 201, and the second silicon film layer 203 covers the surface of the metal tin film layer 202. The thickness of the first silicon film layer 201 is 15nm-25nm, the thickness of the metal tin film layer 202 is 65nm-75nm, and the thickness of the second silicon film layer 203 is 10nm-20nm.
[0035] It should be noted that the coating layer 20 in this embodiment has a three-layer structure, which includes, from bottom to top, a first silicon film layer 201, a metal tin film layer 202 and a second silicon film layer 203. The first silicon film layer 201 and the second silicon film layer 203 serve as outer dielectric layers, and the metal tin film layer 202 serves as an intermediate metal functional film layer. The metal tin film layer 202 is located between the first silicon film layer 201 and the second silicon film layer 203, which can isolate the precipitation of sodium ions in the glass, avoid damaging the metal functional film layer, and prevent the metal functional film layer from being directly exposed to the air and oxidized, thereby ensuring the sunshade performance.
[0036] It can be understood that the present embodiment adopts a multi-layer online coating technology, combined with online sunlight and LOW-E coating technology, by arranging three coaters in the narrow section of the tin bath, the first coater coats the first silicon film layer 201 on the surface of the glass substrate 10, the second coater coats the metal tin film layer 202 on the surface of the first silicon film layer 201, and the third coater coats the second silicon film layer 203 on the surface of the metal tin film layer 202, thereby realizing the composite superposition of three film layers, and the online coating method can be adopted, with high output. Compared with the offline coating method, the coating cost is greatly reduced.
[0037] Furthermore, the metal tin film layer 202 is made of tin oxide, and the first silicon film layer 201 and the second silicon film layer 203 are both made of a preset silicon material.
[0038] It should be understood that the metal tin film layer 202 is made of tin oxide (SnOx), and the metal tin film layer 202 can be considered to be a tin oxide film layer. The preset silicon material is a mixed material of silicon carbide (SiC) and silicon (Si), and the specific ratio of silicon carbide (SiC) to silicon (Si) can be determined according to actual conditions. It can be considered that the first silicon film layer 201 and the second silicon film layer 203 are both SiC:Si film layers.
[0039] It should be noted that, since the present embodiment adopts an online coating method, when preparing the online coated glass, the glass substrate 10 is usually placed in a tin bath of a production line and moved from upstream to downstream at a certain pulling speed. During this process, an online chemical vapor deposition is performed on the surface of the glass substrate 10 using a coater to sequentially form a SiC:Si film layer, a SnOx film layer, and a SiC:Si film layer.
[0040] Further, the first silicon film layer 201 is obtained by depositing a first mixed gas on the surface of the glass substrate 10, the metal tin film layer 202 is obtained by depositing a second mixed gas on the surface of the first silicon film layer 201, and the second silicon film layer 203 is obtained by depositing the first mixed gas on the surface of the metal tin film layer 202. The first mixed gas includes monosilane (SiH4), ethylene (C2H4) and nitrogen (N2), and the second mixed gas includes monobutyltin trichloride, oxygen (O2), helium (He) and nitrogen (N2).
[0041] It can be understood that the reaction temperature for forming the first silicon film layer 201 is 660℃-680℃, and the pulling speed for forming the first silicon film layer 201 is 500m / h-680m / h; the reaction temperature for forming the metal tin film layer 202 is 630℃-650℃, and the pulling speed for forming the metal tin film layer 202 is 500m / h-680m / h; the reaction temperature for forming the second silicon film layer 203 is 630℃-650℃, and the pulling speed for forming the second silicon film layer 203 is 500m / h-680m / h.
[0042] It should be understood that this embodiment utilizes the high temperature of the tin bath to form the film, the film layer is firm, no secondary processing is required, and the cost advantage is obvious.
[0043] In a specific implementation, the first mixed gas is uniformly chemically vapor deposited on a glass substrate 10 at 660°C-680°C to obtain a SiC:Si film layer with a thickness of 15nm-25nm; the second mixed gas is uniformly chemically vapor deposited on the SiC:Si film layer of the glass substrate 10 at 630°C-650°C to form a 65nm-75nm SnOx film layer on the SiC:Si film layer; the first mixed gas is uniformly chemically vapor deposited on the SnOx film layer of the glass substrate 10 at 630°C-650°C to form a 10nm-20nm SiC:Si film layer on the SnOx film layer.
[0044] It should be noted that the glass substrate 10 in this embodiment is white glass, and the thickness of the glass substrate 10 is 5 mm.
[0045] In a specific implementation, the thickness of the glass substrate 10 can be 5 mm, the thickness of the first silicon film layer 201 can be 18 nm, the thickness of the metal tin film layer 202 can be 66 nm, and the thickness of the second silicon film layer 203 can be 12 nm. At this time, the visible light transmittance is 55%, the solar light transmittance is 52%, and the shading coefficient is 0.53, which has good shading effect and energy saving effect.
[0046] In a specific implementation, the thickness of the glass substrate 10 can be 5 mm, the thickness of the first silicon film layer 201 can be 22 nm, the thickness of the metal tin film layer 202 can be 73 nm, and the thickness of the second silicon film layer 203 can be 18 nm. At this time, the visible light transmittance is 50%, the solar light transmittance is 49%, and the shading coefficient is 0.5, which has good shading effect and energy saving effect.
[0047] Furthermore, the use form of the online coated glass includes at least single-piece tempering.
[0048] It should be noted that, since the silicon film layer (the first silicon film layer 201 and the second silicon film layer 203 ) has the property of being temperable in a single piece, the online coated glass of this embodiment can be tempered in a single piece for use.
[0049] In this embodiment, the online coated glass includes a glass substrate 10 and a coating layer 20 covering the surface of the glass substrate 10, the coating layer 20 includes a first silicon film layer 201, a metal tin film layer 202 and a second silicon film layer 203, the first silicon film layer 201 covers the surface of the glass substrate 10, the metal tin film layer 202 covers the surface of the first silicon film layer 201, and the second silicon film layer 203 covers the surface of the metal tin film layer 202. The metal tin film layer 202 is a SnOx film layer, the first silicon film layer 201 and the second silicon film layer 203 are both SiC:Si film layers, the thickness of the first silicon film layer 201 is 15nm-25nm, the thickness of the metal tin film layer 202 is 65nm-75nm, and the thickness of the second silicon film layer 203 is 10nm-20nm. This embodiment makes full use of the acid and alkali resistance, wear resistance and single-piece temperability of the sunlight-coated siliceous film layer, uses it as a dielectric layer, and covers the metal tin film layer in the middle, which can isolate the precipitation of sodium ions in the glass, avoid damaging the metal functional film layer, and prevent the metal functional film layer from being directly exposed to the air and oxidized, thereby ensuring the sunshade performance. It can be prepared by online coating to reduce costs. In addition, the metal tin film layer deposited on the glass surface can reduce the emissivity and improve the energy-saving effect.
[0050] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not impose any limitation on this.
[0051] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present utility model. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.
[0052] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.
[0053] The serial numbers of the above-mentioned embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.
[0054] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. An online coated glass, characterized in that: The online coated glass includes a glass substrate and a coating layer covering the surface of the glass substrate, the coating layer includes a first silicon film layer, a metal tin film layer and a second silicon film layer, the first silicon film layer covers the surface of the glass substrate, the metal tin film layer covers the surface of the first silicon film layer, and the second silicon film layer covers the surface of the metal tin film layer.
2. The online coated glass according to claim 1, characterized in that: The metal tin film layer is made of tin oxide.
3. The online coated glass according to claim 1, characterized in that: The first silicon film layer and the second silicon film layer are both made of a preset silicon material.
4. The online coated glass according to claim 2, characterized in that: The thickness of the metal tin film layer is 65nm-75nm.
5. The online coated glass according to claim 3, characterized in that: The thickness of the first silicon film layer is 15nm-25nm.
6. The online coated glass according to claim 3, characterized in that: The thickness of the second silicon film layer is 10nm-20nm.
7. The online coated glass according to claim 1, characterized in that: The visible light transmittance of the online coated glass is 40%-60%.
8. The online coated glass according to claim 1, characterized in that: The solar light transmittance of the online coated glass is 40%-60%.
9. The online coated glass according to claim 1, characterized in that: The shading coefficient of the online coated glass is 0.4-0.
6.
10. The online coated glass according to any one of claims 1 to 9, characterized in that: The glass substrate is white glass, and the thickness of the glass substrate is 5 mm.