Heat insulation glass, automobile and preparation method

Abstract

The invention relates to the technical field of glass, in particular to heat insulation glass, an automobile and a preparation method, the heat insulation glass comprises a functional layer, the functional layer comprises an infrared regulation and control layer, a heat insulation layer and an optical regulation and control layer, the infrared regulation and control layer can reflect and absorb infrared rays and ultraviolet rays and regulate and control visible light transmittance, the heat insulation layer can achieve heat insulation performance, and the optical regulation and control layer can achieve optical regulation and control. The infrared reflection function is enhanced, the heat insulation effect is further improved, the visible light reflectivity of the heat insulation layer can be reduced through the optical regulation and control layer, and the light transmission performance of visible light is improved. The heat insulation glass provided by the invention not only can realize a heat insulation function, but also can ensure certain visible light transmittance, and can be particularly suitable for automobiles.

Description

Technical Field

[0001] The present application relates to the field of glass technology, and in particular to a heat-insulating glass, a car and a preparation method thereof. Background Art

[0002] At present, existing technologies mostly use films and sunshades to achieve heat insulation and sun protection, but the cost of films is high, and sunshades are inconvenient to use. Especially in the field of new energy vehicles, since the skylight glass is located on the top of the car body, sunshades cannot be used to achieve sunshade for the skylight glass. In addition, completely lowering the temperature in the car through air conditioning will increase the power load on the vehicle battery, thereby reducing the vehicle's cruising range.

[0003] Therefore, there is a need to design a glass with good heat-insulating properties, and in particular, it is hoped that the glass can have low visible light reflectivity while having heat-insulating properties, so that it can be particularly suitable for new energy vehicles. Summary of the invention

[0004] The present application provides a heat-insulating glass, a car and a preparation method to improve the heat-insulating effect.

[0005] The present application provides a heat-insulating glass, comprising a substrate and a functional layer arranged on the substrate, wherein the functional layer comprises:

[0006] An infrared regulating layer is disposed on the substrate;

[0007] A heat-insulating layer, arranged on a side of the infrared regulating layer away from the substrate;

[0008] The optical regulation layer is arranged on a side of the heat insulation layer away from the infrared regulation layer.

[0009] In some embodiments, the infrared regulation layer includes at least two metal oxide film layers stacked in sequence, and the material of each metal oxide film layer is a metal oxide with a different oxygen content.

[0010] In some embodiments, the optical regulation layer includes at least two metal oxide layers stacked in sequence.

[0011] Among them, at least one layer of the metal oxide layer is made of a metal oxide material with a polycrystalline structure, and at least one layer of the metal oxide layer is made of a metal oxide material with an amorphous structure; and / or each layer of the metal oxide layer is made of a metal oxide material with a different oxygen content.

[0012] In some embodiments, a dielectric layer is further disposed between the infrared regulation layer and the substrate.

[0013] In some embodiments, a composite dielectric layer is further disposed between the infrared regulating layer and the thermal insulation layer.

[0014] In some embodiments, the material of the composite dielectric layer is selected from one or more of indium tin oxide, aluminum zinc oxide, zinc tin oxide, zinc oxide, and fluorine-doped tin oxide, and the thickness of the composite dielectric layer is 10 to 500 nm.

[0015] In some embodiments, a barrier layer is further disposed between the heat insulation layer and the optical regulation layer.

[0016] In some embodiments, the material of the barrier layer is selected from one or more of silicon nitride, silicon oxynitride, nickel-chromium alloy, nickel-chromium oxide, nickel-chromium oxynitride, nickel-tungsten alloy, nickel-tungsten oxide, nickel-tungsten oxynitride, zirconium oxide, titanium oxide and titanium oxynitride, and the thickness of the barrier layer is 3 to 150 nm.

[0017] In some embodiments, the material of the optical regulation layer is selected from one or more of tungsten and tungsten oxide, tungsten oxynitride, zinc aluminum oxide, zinc tin oxide, zinc oxide, titanium oxide, and silicon oxide, and the thickness of the optical regulation layer is 30 to 850 nm.

[0018] In some embodiments, three functional layers are sequentially stacked on the substrate.

[0019] In some embodiments, the substrate is a curved substrate, and a barrier layer is further disposed between the heat insulation layer and the optical regulation layer.

[0020] Correspondingly, the present application also provides a car, comprising a car body; and the heat-insulating glass provided by any of the aforementioned embodiments, wherein the heat-insulating glass is arranged on the car body.

[0021] Correspondingly, the present application also provides a preparation method for preparing the aforementioned heat-insulating glass, the preparation method comprising forming the optical regulation layer by deposition sputtering.

[0022] The present application has the following beneficial effects: The present application provides a heat-insulating glass, a car and a preparation method, the heat-insulating glass includes a functional layer, the functional layer includes an infrared regulation layer, a heat-insulating layer and an optical regulation layer, the infrared regulation layer can reflect and absorb infrared and ultraviolet rays, and regulate the visible light transmittance, the heat-insulating layer can achieve heat-insulating performance, enhance the infrared reflection function, and further improve the heat-insulating effect, the optical regulation layer can reduce the visible light reflectivity of the heat-insulating layer and improve the visible light transmittance. The heat-insulating glass provided by the present application can achieve the heat-insulating function and ensure a certain visible light transmittance, and it can be particularly suitable for automobiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic structural diagram of a heat-insulating glass is shown as an example.

[0025] Figure 2 A schematic structural diagram of another type of heat-insulating glass is shown as an example.

[0026] Figure 3 A schematic structural diagram of another type of heat-insulating glass is shown as an example.

[0027] Figure 4 A schematic structural diagram of another type of heat-insulating glass is shown as an example.

[0028] Figure 5 A schematic structural diagram of another type of heat-insulating glass is shown as an example.

[0029] Figure 6 A schematic structural diagram of another type of heat-insulating glass is shown as an example.

[0030] Figure 7 A schematic structural diagram of another type of heat-insulating glass is shown as an example.

[0031] Figure 8 A schematic structural diagram of another type of heat-insulating glass is shown as an example.

[0032] Fig. 9 A schematic structural diagram of an optical regulation layer is exemplarily shown.

[0033] Component markings in the figure: 100 - substrate, 200 - functional layer, 210 - infrared regulation layer, 220 - thermal insulation layer, 230 - optical regulation layer, 231 - first metal oxide layer, 232 - second metal oxide layer, 240 - composite dielectric layer, 250 - barrier layer, 260 - hardened dielectric layer, 300 - dielectric layer. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0036] The present application provides a heat-insulating glass, an automobile and a preparation method, which are described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0037] See also Figure 1 An embodiment of the present application provides a heat-insulating glass, which includes a substrate 100 and a functional layer 200 .

[0038] The substrate 100 may be a flat substrate or a curved substrate, and is usually made of a transparent material. The substrate 100 may be made of glass, organic glass, PET, PC, PMMA, PI, etc., and the examples in this embodiment do not constitute an improper limitation thereto.

[0039] The functional layer 200 is disposed on the substrate 100, and is used to realize the required functions. Here, the functional layer 200 includes an infrared regulation layer 210, a heat insulation layer 220, and an optical regulation layer 230. Exemplarily, the infrared regulation layer 210, the heat insulation layer 220, and the optical regulation layer 230 can be stacked in sequence on the substrate 100. Of course, it can be understood that in other embodiments, other structures may be additionally provided between the substrate 100 and the infrared regulation layer 210, between the infrared regulation layer 210 and the heat insulation layer 220, and between the heat insulation layer 220 and the optical regulation layer 230, and the examples in this embodiment do not constitute an undue limitation thereto.

[0040] The infrared regulation layer 210 is disposed on the substrate 100. Here, the infrared regulation layer 210 can be used to reflect and absorb infrared rays and ultraviolet rays, reduce the penetration of infrared rays, and thus achieve a certain heat insulation effect.

[0041] Exemplarily, the material of the infrared regulation layer 210 can be selected from one or more of tungsten and tungsten oxide (W&WOx), tungsten oxynitride (W&WNOx), palladium (Ba), silver-gold alloy, silver-palladium alloy, vanadium and vanadium oxide (V&VOx), nickel-tungsten and nickel-tungsten oxide (WNi&WNiOx), nickel-tungsten oxynitride (WNi&WNiNOx), nickel-chromium alloy, iron-chromium alloy and the like.

[0042] It is understandable that if the film layer structures in the embodiments of the present application are made of multiple materials, it means that the film layer is a multi-layer structure, which includes several film layers stacked, and each film layer is made of the selected material. For example, when the material of the infrared regulation layer 210 is tungsten oxide and palladium at the same time, the infrared regulation layer 210 includes a film layer made of tungsten oxide and a film layer made of palladium, and the two film layers are stacked. When more materials are selected, it is the same. The stacking order between the film layers made of each material can be adjusted as needed, and the corresponding effect can be achieved. The examples in this embodiment do not limit it.

[0043] The setting of the infrared regulation layer 210 can reduce the infrared transmittance, regulate the visible light transmittance, isolate ultraviolet rays, and enhance the full-spectrum optical regulation ability of the film. It can regulate the full-spectrum infrared reflectivity and absorptivity, and regulate the visible light transmittance at the same time.

[0044] For example, tungsten oxide can be used as a material for preparing the infrared regulation layer 210. Tungsten oxide has the function of blocking infrared ultraviolet rays, and polycrystalline tungsten oxide also has the function of modulating infrared reflectivity. According to the wavelength range of infrared light, the valence state and crystal state of tungsten oxide in the infrared regulation layer 210 are adjusted to achieve reflection and absorption of infrared light.

[0045] In a further example, the infrared reflection function and light transmission function of the infrared control layer can be adjusted by adjusting the oxygen content and polycrystalline structure of tungsten oxide. Tungsten oxide with a polycrystalline structure and a high oxygen content has better infrared and ultraviolet reflection and absorption functions, but may have poor light transmittance; while tungsten oxide with a single crystal structure and a low oxygen content has better light transmittance, but poor infrared and ultraviolet reflection and absorption functions.

[0046] Therefore, the infrared regulation layer 210 can be a multilayer structure, that is, a structure of at least two tungsten oxide layers stacked in sequence, and the oxygen content of tungsten oxide in the tungsten oxide layer gradually decreases. Among them, the adjustment of the oxygen content of the tungsten oxide layer can be achieved through a sputtering deposition process step, and the sputtering deposition can adopt a conventional construction deposition method. Exemplarily, it can be achieved by adjusting the supply amount of the doping gas in the sputtering deposition process. Of course, in some embodiments, tungsten oxide film layers with different oxygen contents can also be directly purchased and bonded to form the infrared regulation layer 210.

[0047] For example, the infrared regulation layer 210 may include a first tungsten oxide layer, a second tungsten oxide layer, and a third tungsten oxide layer. The oxygen content of tungsten oxide in the first tungsten oxide layer, the second tungsten oxide layer, and the third tungsten oxide layer gradually decreases. For example, the first tungsten oxide layer is made of a tungsten oxide polycrystalline material with three oxygens, the second tungsten oxide layer is made of a tungsten oxide polycrystalline material with 2.4-2.75 oxygens, and the third tungsten oxide layer is made of a tungsten oxide single crystal material. For another example, the infrared regulation layer 210 may include a first tungsten oxide layer and a second tungsten oxide layer. The first tungsten oxide layer uses tungsten oxide with an oxygen content greater than that in the second tungsten oxide layer. For example, the first tungsten oxide layer uses polycrystalline tungsten oxide, and the second tungsten oxide layer uses single crystal tungsten oxide. Typically, the first tungsten oxide layer is closest to the substrate 100, but of course it may be different in some other embodiments.

[0048] By configuring the structure of at least two layers of tungsten oxide layers, the infrared regulation layer 210 can not only have the functions of infrared and ultraviolet reflection and absorption, but also ensure a certain visible light transmittance.

[0049] It is understood that the above embodiments are illustrated by taking tungsten oxide as an example. In other embodiments, the tungsten element may be replaced by other elements of the same group as tungsten, such as rhenium and molybdenum, or other metal oxide films, and the examples in this embodiment do not constitute an undue limitation thereto. Furthermore, it is also understood that various metal oxides themselves are known materials.

[0050] The heat insulation layer 220 is disposed on a side of the infrared regulation layer 210 away from the substrate 100 . The heat insulation layer 220 is used to achieve heat insulation performance, enhance the infrared reflection function, and further improve the heat insulation effect.

[0051] Exemplarily, the material of the heat insulation layer 220 is selected from one or more materials such as silver, silver-gold alloy, silver-palladium alloy, etc. It can be formed by low-pressure, high-power sputtering deposition. Exemplarily again, the thickness of the heat insulation layer 220 can be 5 to 50 nm.

[0052] The provision of the heat-insulating layer 220 helps to enhance the direct infrared reflectivity, improve the infrared heat-insulating performance, and reduce the glass emissivity. Moreover, when the heat-insulating layer 220 is provided in conjunction with the infrared regulation layer 210, it can be matched with the infrared regulation layer 210 to adjust the full-spectrum performance of the glass. Exemplarily, the isolation of ultraviolet light, the transmittance and reflected color of visible light, the transmittance, absorptivity, and reflectivity of infrared light can all be improved. In particular, in subsequent embodiments, a multi-layer functional layer 200 is provided, that is, a multi-layer heat-insulating layer 220 is provided in a certain order, and the beneficial effect will be further increased.

[0053] The optical regulation layer 230 is disposed on a side of the heat insulation layer 220 away from the infrared regulation layer 210 . The optical regulation layer 230 is used to reduce the visible light reflectivity of the heat insulation layer 220 and improve the light transmittance of visible light.

[0054] The optical regulation layer 230 is usually made of metal oxide material. By using metal oxides with different oxygen contents, the oxygen content of the film layer and the crystallinity of the film are changed, thereby adjusting the infrared regulation ability. The chemical bonding properties of metal oxides with different oxygen contents are different, which causes the infrared absorption peak position to move, and the change in oxygen content will also affect the intensity of the absorption peak and the width of the infrared absorption band.

[0055] In the embodiment of the present application, the optical regulation layer 230 may be a multi-layer structure, that is, a structure of at least two layers of different metal oxide layers stacked in sequence, and the oxygen content of the metal oxides in different layers is different. For example, see Fig. 9 The optical regulation layer 230 includes a first metal oxide layer 231 and a second metal oxide layer 232 which are stacked in sequence. The oxygen content of the metal oxide in the first metal oxide layer 231 and the second metal oxide layer 232 is different. Exemplarily, the oxygen content of the metal oxide in the first metal oxide layer 231 is greater than that in the second metal oxide layer 232.

[0056] In addition, for the embodiment in which the optical regulation layer 230 is configured as a multi-layer structure, at least one layer of the multi-layer structure of the optical regulation layer 230 may be a polycrystalline structure and at least one layer may be an amorphous structure, thereby improving its infrared regulation capability through a composite structure. For example, the first metal oxide layer 231 is a polycrystalline structure, and the second metal oxide layer 232 is a single crystal structure.

[0057] Exemplarily, the material of the optical regulation layer 230 is selected from one or more of tungsten and tungsten oxide (W&WOx), tungsten oxynitride (W&WNOx), aluminum zinc oxide (AZO), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), titanium oxide (TiOx), silicon oxide (SiOx) and the like. It can be understood that the use of multiple materials in the embodiments of the present application refers to the provision of a plurality of film layers stacked in sequence, each film layer using the selected material. For example, the material of the optical regulation layer 230 is selected from tungsten oxide and zinc tin oxide, then the optical regulation layer 230 includes a film layer made of tungsten oxide and a film layer made of zinc tin oxide, and the two film layers are arranged in sequence, and the order can be selected as needed.

[0058] If it is necessary to obtain glass with a higher visible light transmittance, the film thickness of the heat insulation layer 220 needs to be reduced; if it is necessary to improve the regulation ability of the infrared regulation layer 210, the film thickness of the infrared regulation layer 210 needs to be thickened. Therefore, when the transmittance requirement is low, the thickness of the heat insulation layer 220 can be increased to enhance infrared reflection, and the infrared regulation layer 210 can be thinned to continue to compensate for infrared absorption and reflection capabilities.

[0059] By disposing the optical regulation layer 230 , the visible light transmittance, infrared transmittance, visible light reflectance, infrared reflectance, etc. can be regulated according to different optical requirements.

[0060] In some embodiments, see Figure 2 A dielectric layer 300 may be provided between the infrared regulating layer 210 and the substrate 100 . The dielectric layer 300 may be used to increase the adhesion between the substrate 100 and the subsequent functional layer 200 .

[0061] Exemplarily, the material of the dielectric layer 300 is selected from one or more of silicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride (SiNOx), titanium oxide (TiOx), titanium nitride (TiNx), titanium oxynitride (TiNOx), indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc boron oxide (BZO), niobium oxide (NbOx), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), and tin oxide (SnOx).

[0062] In some embodiments, see Figure 3 The functional layer 200 further includes a composite dielectric layer 240, which is disposed between the infrared regulating layer 210 and the heat insulating layer 220. The composite dielectric layer 240 can be used to increase the adhesion of the heat insulating layer 220 and prevent the heat insulating layer 220 from being oxidized.

[0063] Exemplarily, the material of the composite dielectric layer 240 is selected from one or more of indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), and fluorine-doped tin oxide (FTO).

[0064] By applying the composite dielectric layer 240 , the adhesion of the thermal insulation layer 220 can be improved, and the erosion of the thermal insulation layer 220 by air oxidation and film impurities can be reduced, thereby improving the compactness, stability and continuity of the thermal insulation layer 220 .

[0065] In some embodiments, see Figure 4 The functional layer 200 further includes a barrier layer 250, which is disposed between the heat insulating layer 220 and the optical regulation layer 230. The barrier layer 250 can be used to protect the heat insulating layer 220 from oxidation, improve the color performance of the glass and the anti-oxidation ability during high temperature molding.

[0066] Exemplarily, the material of the barrier layer 250 is selected from one or more of silicon nitride (SiNx), silicon oxynitride (SiNOx), nickel-chromium alloy (NiCr), nickel-chromium oxide (NiCrOx), nickel-chromium oxynitride (NiCrNOx), nickel-tungsten alloy (NiW), nickel-tungsten oxide (NiWOx), nickel-tungsten oxynitride (NiWNOx), zirconium oxide (CrOx), titanium oxide (TiOx), and titanium oxynitride (TiNOx).

[0067] The barrier layer 250 has high temperature resistance and can be selectively used, especially when the glass needs to be subjected to a 3D molding process from a flat surface to a curved surface, the barrier layer 250 is particularly needed to protect the heat insulation layer 220 and the infrared control layer 210 from high temperature molding. If the film layers are formed directly on the curved substrate 100, that is, when the flat surface to the curved surface molding is not required, the barrier layer 250 can be selected to avoid affecting the transmittance.

[0068] In some embodiments, see Figure 5 The functional layer 200 further includes a hardening dielectric layer 260 , and the hardening dielectric layer 260 is located on a side of the entire functional layer 200 away from the substrate 100 .

[0069] Exemplarily, the material of the hardening dielectric layer 260 is selected from one or more of zirconium oxide (ZrOx), tungsten oxide (WOx), silicon nitride (SiNx) and aluminum oxide (AlOx).

[0070] In some embodiments, a plurality of functional layers 200 in any of the above embodiments are disposed on the substrate 100, and each functional layer 200 may include an infrared regulation layer 210, a heat insulation layer 220, and an optical regulation layer 230. For example, see Figure 7 and Figure 8 , a functional layer 200 having two, three or other number of layers may be provided.

[0071] In the embodiment where several layers of functional layers 200 are provided, especially in the embodiment where three or more layers of functional layers 200 are provided, if only multiple layers of silver heat insulation layer 220 are used, although the heat insulation performance can be improved, its light transmittance will be significantly reduced. However, the structural setting of the functional layer 200 of the embodiment of the present application can improve the heat insulation performance while ensuring sufficient visible light transmittance.

[0072] For example, see Figure 8 The heat-insulating glass is provided with three layers of the aforementioned functional layers 200. Thus, better heat-insulating performance can be achieved while ensuring sufficient transmittance.

[0073] For example, the heat insulating glass uses a curved substrate 100, and the functional layer 200 does not have a barrier layer 250. In this case, the heat insulating glass can be provided with four, five or other number of functional layers 200. Here, the heat insulating glass provided with four or five functional layers 200 can still make the light transmittance above 70%, and also has better heat insulation performance.

[0074] It is understandable that when multiple functional layers 200 are provided, the specific structures of the functional layers 200 may be the same or different. Figure 7 and Figure 8 The outermost functional layer 200 is provided with one more hardening medium layer 260 than the inner functional layer. Of course, in other embodiments, each functional layer 200 may also have other differences, as long as each functional layer 200 is provided with the aforementioned infrared regulation layer 210, heat insulation layer 220 and optical regulation layer 230.

[0075] In some embodiments, the substrate 100 is a curved substrate. In the embodiment where the substrate 100 is a curved substrate, the insulating glass may be provided with a barrier layer 250 .

[0076] Currently, many glasses are curved glasses, especially in automobile glasses, most of which are 3D curved glasses. Existing curved insulation glasses often have quality defects after being formed at high temperatures.

[0077] The coated glass in the embodiment of the present application can be manufactured by directly processing on the curved substrate 100, without the need for subsequent glass sintering and bending processes, thereby improving its molding quality.

[0078] Of course, in some embodiments, a high temperature resistant and anti-oxidation barrier layer 250 may be provided to first form various film layers on a planar substrate 100, and then the coated planar substrate 100 may be 3D molded to form a curved insulating glass.

[0079] Correspondingly, an embodiment of the present application further provides a car, comprising a car body and the heat-insulating glass provided by any of the aforementioned embodiments, wherein the heat-insulating glass is arranged on the car body.

[0080] In some embodiments, a front windshield, a rear windshield, and window glass are provided on the vehicle body, and any of the glass on the vehicle body, such as the front windshield, the rear windshield, and the window glass, can adopt the aforementioned heat-insulating glass.

[0081] In some embodiments, for the front windshield, front door glass, etc., a heat-insulating glass with fewer functional layers 200 may be used to ensure light transmittance, while for the rear windshield, rear door glass, etc., a heat-insulating glass with more functional layers 200 may be used to improve heat insulation performance.

[0082] Exemplarily, the automobile includes a front windshield, a front door glass, a rear windshield, and a rear door glass. The front windshield and the rear windshield both use the aforementioned heat-insulating glass, but the number of functional layers 200 of the front windshield is less than the number of functional layers 200 of the rear windshield; and / or, the front door glass and the rear door glass both use the aforementioned heat-insulating glass, but the number of functional layers 200 of the front door glass is less than the number of functional layers 200 of the rear door glass. For example, the front windshield has two functional layers, and the rear windshield has three functional layers, but the examples in this embodiment do not constitute an improper limitation thereto.

[0083] In some embodiments, a skylight glass is provided on the vehicle body, and the skylight glass may be the aforementioned heat-insulating glass.

[0084] In the automobile provided in the embodiment of the present application, since the aforementioned heat-insulating glass is used, good heat-insulating performance can be achieved, reducing the demand for air conditioning in the car, thereby reducing power consumption. Especially when the car is a new energy vehicle, it also has a battery and a car air conditioner connected to the battery. The arrangement of this embodiment helps to reduce power consumption and thus increase the cruising range of the new energy vehicle.

[0085] At the same time, the existing heat insulation solution will reduce the transmittance of visible light, and when used in the front windshield and the front window glass, it cannot meet the transmittance requirements. However, the heat insulation glass provided in the embodiment of the present application has a higher transmittance of visible light, which can meet the requirements of visible light transmittance while meeting the heat insulation requirements.

[0086] Correspondingly, an embodiment of the present application also provides a preparation method for preparing the aforementioned insulating glass.

[0087] The preparation method comprises the following steps

[0088] S100 . Forming a dielectric layer 300 .

[0089] Exemplarily, the dielectric layer 300 is deposited on the glass substrate 100 by vacuum coating, evaporation coating, etc. For example, the thickness of the dielectric layer 300 is 3 to 250 nm. For another example, the material of the dielectric layer 300 is selected from one or more of silicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride (SiNOx), titanium oxide (TiOx), titanium nitride (TiNx), titanium oxynitride (TiNOx), indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc boron oxide (BZO), niobium oxide (NbOx), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), and tin oxide (SnOx). The dielectric layer 300 helps to increase the surface adhesion between the glass and the functional layer 200.

[0090] S200. Forming an infrared regulation layer 210.

[0091] Exemplarily, the infrared regulation layer 210 is deposited on the dielectric layer 300 by vacuum coating, evaporation coating, and the like. If the dielectric layer 300 is not provided, the infrared regulation layer 210 is formed on the substrate 100. For example, the thickness of the infrared regulation layer 210 is 10 to 800 nm. For another example, the material of the infrared regulation layer 210 is selected from one or more of tungsten and tungsten oxide (W&WOx), tungsten oxynitride (W&WNOx), palladium, silver-gold alloy, silver-palladium alloy, vanadium and vanadium tungsten oxide (V&VOx), nickel tungsten and nickel tungsten oxide (WNi&WNiOx), nickel tungsten oxynitride (WNi&WNiNOx), nickel-chromium alloy, iron-chromium alloy, and the like.

[0092] The infrared regulation layer 210 can regulate the transmittance of the full spectrum infrared, and can selectively perform full spectrum regulation and transmittance regulation as needed.

[0093] When the infrared regulating layer 210 includes a multi-layer structure, the ratio of oxygen content of metal oxides in different layers can be adjusted to adjust the infrared capability. In addition, for each different layer, at least one layer can be a polycrystalline structure and at least one layer can be an amorphous structure, thereby improving its infrared regulating capability through a composite structure.

[0094] S300 . Forming a composite dielectric layer 240 .

[0095] Exemplarily, the composite dielectric layer 240 is deposited on the infrared control layer 210 by vacuum coating, evaporation coating, etc. For example, the thickness of the composite dielectric layer 240 is 10 to 500 nm. For another example, the material of the composite dielectric layer 240 is selected from one or more of indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), and fluorine-doped tin oxide (FTO).

[0096] Here, the composite dielectric layer 240 can be used as a protective layer and carrier of the heat insulating layer 220. In addition, the composite dielectric layer 240 can also play a role in isolating ultraviolet rays to a certain extent.

[0097] S400. Forming a heat insulation layer 220.

[0098] Exemplarily, the heat insulating layer 220 is formed on the composite dielectric layer 240 by vacuum coating, evaporation coating, etc. If the composite dielectric layer 240 is not provided, the heat insulating layer 220 is formed on the infrared regulating layer 210 .

[0099] For example, the thickness of the heat insulating layer 220 is 5 to 500 nm. For another example, the material of the heat insulating layer 220 can be selected from one or more materials such as silver, silver-gold alloy, and silver-palladium alloy.

[0100] S500 . Forming a barrier layer 250 .

[0101] Exemplarily, the barrier layer 250 is deposited on the thermal insulation layer 220 by vacuum coating, evaporation coating, and the like. For example, the thickness of the barrier layer 250 is 3 to 150 nm. For another example, the material of the barrier layer 250 is selected from one or more of silicon nitride (SiNx), silicon oxynitride (SiNOx), nickel-chromium alloy (NiCr), nickel-chromium oxide (NiCrOx), nickel-chromium oxynitride (NiCrNOx), nickel-tungsten alloy (NiW), nickel-tungsten oxide (NiWOx), nickel-tungsten oxynitride (NiWNOx), zirconium oxide (CrOx), titanium oxide (TiOx), and titanium oxynitride (TiNOx).

[0102] By providing the barrier layer 250 , the heat insulating layer 220 can be protected, oxidation of the heat insulating layer 220 can be reduced, and the entire film layer can be protected from being damaged by high temperature.

[0103] S600 . Forming the optical regulation layer 230 .

[0104] Exemplarily, the optical regulation layer 230 is deposited on the barrier layer 250 by vacuum coating, evaporation coating, etc. It is understandable that when the barrier layer 250 is not provided, the optical regulation layer 230 is formed on the heat insulation layer 220 .

[0105] For example, the thickness of the optical regulation layer 230 is 30 to 850 nm. For another example, the material of the optical regulation layer 230 is selected from one or more materials such as tungsten and tungsten oxide (W&WOx), tungsten oxynitride (W&WNOx), zinc aluminum oxide (AZO), zinc tin oxide (ZnSnOx), zinc oxide ZnOx, TiOx, SiOx, etc.

[0106] Here, the optical control layer 230 can improve the transmittance of visible light and reduce the reflectance of visible light. For example, the transmittance of the coating surface can be increased from 3-20% to more than 75%.

[0107] In some embodiments, an anti-reflection layer may be further stacked on the optical regulation layer 230 to further reduce the reflectivity of visible light. For example, the reflectivity may be reduced from more than 9% to about 4%.

[0108] S700 . Form a hardened dielectric layer 260 .

[0109] Exemplarily, the hard dielectric layer 260 is deposited on the optical regulation layer 230 by vacuum coating, evaporation coating, etc. For example, the thickness of the hard dielectric layer 260 is 3 to 500 nm. For another example, the material of the hard dielectric layer 260 can be selected from one or more of zirconium oxide (ZrOx), tungsten oxide (WOx), silicon nitride (SiNx), and aluminum oxide (AlOx).

[0110] By setting the hardening dielectric layer 260, the adhesion, surface tension and stress of the thin film layer surface can be increased, so that the surface hardness of the coated film surface is as high as 8H or more. Therefore, the coated glass can meet the wear resistance standard, and also meet the acid, alkali and boiling water resistance test standards.

[0111] In the embodiments of the present application, the infrared regulation layer 210 is introduced into the structure to enhance the full spectrum regulation capability of the functional film, and to regulate the ultraviolet, visible light, and infrared bands. During specific use, the film design and application of the infrared regulation layer 210 can be carried out according to the application of different products.

[0112] In addition, in some embodiments, through the combined characteristics of the multi-layer thermal insulation layer 220, the thermal insulation performance can be adjusted according to the requirements of thermal insulation and visible light by designing different infrared reflection capabilities. At the same time, the infrared absorption of the infrared control layer 210 can also be adjusted. Not only can the infrared reflection and absorption be regulated according to different applications, but the infrared reflection and absorption ratio can also be regulated in a targeted manner, so that the glass can not only insulate, but also achieve the function of assisting heat conduction to the environment on the side of the glass away from the outside by absorbing heat.

[0113] In addition, in some embodiments, the optical control layer 230 can be used to control the visible light transmittance and reflectivity of the film. When applied to a vehicle, the transmittance of the sunroof, skylight, rear door window glass, rear windshield, and rear triangular window glass can be reduced, and more ultraviolet and infrared reflections can be achieved to improve heat insulation performance. The hardened dielectric layer 260 helps to improve the performance of scratch resistance, storage, water vapor, cleaning, and wear resistance.

[0114] Example 1

[0115] See also Figure 6 In this embodiment, a heat-insulating glass is provided, which includes a substrate 100, on which a dielectric layer 300, an infrared regulation layer 210, a composite dielectric layer 240, a heat-insulating layer 220, a blocking layer 250, an optical regulation layer 230 and a hardened dielectric layer 260 are sequentially stacked.

[0116] Example 2

[0117] The preparation method of the insulating glass provided in Example 1 is as follows.

[0118] First, a dielectric layer 300 is formed on the glass substrate 100 to increase the adhesion between the substrate 100 and the subsequent functional layer 200. Then, an infrared regulation layer 210 is formed on the dielectric layer 300. The main function of the infrared regulation layer 210 is to reflect and absorb infrared and ultraviolet rays, reduce infrared penetration, and selectively achieve the required thermal insulation effect. Then, a composite dielectric layer 240 is formed on the infrared regulation layer 210. The main function of the composite dielectric layer 240 is to increase the adhesion of the subsequent thermal insulation layer 220 and prevent the thermal insulation layer 220 from oxidation. Then, another thermal insulation layer 220 is formed on the composite dielectric layer 240 to enhance the infrared reflection function and further improve the thermal insulation effect. Then, a barrier layer 250 is formed. The barrier layer 250 is mainly used to protect the thermal insulation layer 220 from oxidation, improve color performance and anti-oxidation ability during high temperature molding. Then, an optical regulation layer 230 is formed to reduce the visible light reflectivity of the heat insulation layer 220 and improve the visible light transmittance. Finally, a hardening dielectric film layer is formed to ensure the hardness, adhesion, water vapor barrier and scratch resistance of the film.

[0119] Example 3

[0120] See also Figure 1 In this embodiment, a heat-insulating glass is provided, which includes a substrate 100, on which an infrared regulating layer 210, a heat-insulating layer 220 and an optical regulating layer 230 are sequentially stacked. In order to protect the optical regulating layer 230, a hardening dielectric layer 260 may also be additionally provided on the outside of the optical regulating layer 230.

[0121] Example 4

[0122] See also Figure 2 In this embodiment, a heat-insulating glass is provided, which includes a substrate 100, on which a dielectric layer 300, an infrared regulating layer 210, a heat-insulating layer 220, and an optical regulating layer 230 are sequentially stacked. In order to protect the optical regulating layer 230, a hardening dielectric layer 260 may also be additionally provided on the outside of the optical regulating layer 230.

[0123] Example 5

[0124] See also Figure 3 In this embodiment, a heat-insulating glass is provided, which includes a substrate 100, on which an infrared regulating layer 210, a composite dielectric layer 240, a heat-insulating layer 220, and an optical regulating layer 230 are sequentially stacked. In order to protect the optical regulating layer 230, a hardening dielectric layer 260 may also be additionally provided on the outside of the optical regulating layer 230.

[0125] Example 6

[0126] See also Figure 4 In this embodiment, a heat-insulating glass is provided, which includes a substrate 100, on which an infrared regulating layer 210, a composite heat-insulating layer 220, a blocking layer 250, and an optical regulating layer 230 are sequentially stacked. In order to protect the optical regulating layer 230, a hardening dielectric layer 260 may also be additionally provided on the outside of the optical regulating layer 230.

[0127] Example 7

[0128] See also Figure 7 In this embodiment, a heat-insulating glass is provided, which includes a substrate 100, on which a dielectric layer 300 and two groups of functional layers 200 are sequentially stacked. The functional layer 200 close to the substrate 100 includes an infrared control layer 210, a composite dielectric layer 240, a heat-insulating layer 220, a barrier layer 250, and an optical control layer 230 that are sequentially stacked. The functional layer 200 away from the substrate 100 includes an infrared control layer 210, a composite dielectric layer 240, a heat-insulating layer 220, a barrier layer 250, an optical control layer 230, and a hardened dielectric layer 260 that are sequentially stacked.

[0129] Example 8

[0130] See also Figure 8In this embodiment, a heat-insulating glass is provided, which includes a substrate 100, on which a dielectric layer 300 and three groups of functional layers 200 are sequentially stacked. The two groups of functional layers 200 close to the substrate 100 include an infrared control layer 210, a composite dielectric layer 240, a heat-insulating layer 220, a barrier layer 250, and an optical control layer 230 that are sequentially stacked. The outermost group of functional layers 200 away from the substrate 100 includes an infrared control layer 210, a composite dielectric layer 240, a heat-insulating layer 220, a barrier layer 250, an optical control layer 230, and a hardened dielectric layer 260 that are sequentially stacked.

[0131] It can be understood that the meanings of the terms in the embodiments of the present application are the same. For the content that is not described in detail in a certain embodiment, its specific implementation details can refer to the descriptions in other embodiments. The example descriptions and technical effects shown in the aforementioned embodiments can be implemented accordingly. Unless there are explicit exclusions or theoretical obstacles that prevent the various embodiments from being combined, the various embodiments can be used in combination with each other. For the repeated parts, this specification will not go into details.

[0132] The above is a detailed introduction to the insulating glass, automobile and preparation method provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heat-insulating glass, characterized in that: The invention comprises a substrate and a functional layer arranged on the substrate, wherein the functional layer comprises: An infrared regulating layer is disposed on the substrate; A heat-insulating layer, arranged on a side of the infrared regulating layer away from the substrate; The optical regulation layer is arranged on a side of the heat insulation layer away from the infrared regulation layer.

2. The heat-insulating glass according to claim 1, characterized in that: A dielectric layer is also provided between the infrared regulating layer and the substrate.

3. The heat-insulating glass according to claim 1, characterized in that: A composite dielectric layer is also provided between the infrared regulating layer and the heat insulating layer.

4. The heat-insulating glass according to claim 3, characterized in that: The material of the composite dielectric layer is selected from one or more of indium tin oxide, zinc aluminum oxide, zinc tin oxide, zinc oxide and fluorine-doped tin oxide. The thickness of the composite dielectric layer is 10 to 500 nm.

5. The heat-insulating glass according to claim 1, characterized in that: A barrier layer is further arranged between the heat insulation layer and the optical regulation layer.

6. The heat-insulating glass according to claim 5, characterized in that: The material of the barrier layer is selected from one or more of silicon nitride, silicon oxynitride, nickel-chromium alloy, nickel-chromium oxide, nickel-chromium oxynitride, nickel-tungsten alloy, nickel-tungsten oxide, nickel-tungsten oxynitride, zirconium oxide, titanium oxide and titanium oxynitride, and the thickness of the barrier layer is 3 to 150 nm.

7. The heat-insulating glass according to claim 1, characterized in that: The material of the optical regulation layer is selected from one or more of tungsten and tungsten oxide, tungsten oxynitride, zinc aluminum oxide, zinc tin oxide, zinc oxide, titanium oxide, and silicon oxide. The thickness of the optical regulation layer is 30 to 850 nm.

8. The heat-insulating glass according to any one of claims 1 to 7, characterized in that: The three functional layers are stacked in sequence on the substrate.

9. The heat-insulating glass according to claim 1, characterized in that: The substrate is a curved substrate, and a barrier layer is further provided between the heat insulation layer and the optical regulation layer.

10. An automobile, characterized in that: include, the body of the vehicle; and The heat-insulating glass according to any one of claims 1 to 9, is provided on the vehicle body.

11. A preparation method for preparing the heat-insulating glass according to any one of claims 1 to 9, characterized in that: The preparation method comprises forming the optical regulation layer by deposition sputtering.

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