Thin film type hollow glass

Abstract

The invention relates to the technical field of glass, and discloses film type hollow glass which is applied to the high altitude of a building, the film type hollow glass comprises outer-layer glass, middle-arranged glass and inner-layer glass which are sequentially arranged from outside to inside in the first direction, and low-radiation films are attached to the inward sides of the outer-layer glass, the middle-arranged glass and the inner-layer glass; a sealed first cavity is defined between the outer-layer glass and the middle-arranged glass, and a sealed second cavity is defined between the middle-arranged glass and the inner-layer glass. The thickness of the first cavity is the same as that of the second cavity, the thickness of the first cavity ranges from 6 mm to 15 mm, and filling gas used for heat insulation is arranged in the first cavity and the second cavity so that the heat transfer coefficient of the thin film type hollow glass can be smaller than 0.800 W / (m.K). The heat transfer coefficient of the thin film type hollow glass can be smaller than 0.800 W / (m.K), and the heat transfer coefficient of the thin film type hollow glass can be smaller than 0.800 W / (m.K). The high-altitude position of a building provided with the film type hollow glass can meet the ultra-low energy consumption requirement.

Description

Technical Field

[0001] This invention relates to the field of glass technology, and more specifically to a thin-film type insulated glass. Background Technology

[0002] With social progress and technological advancements, people have increasingly higher demands for the comfort, energy efficiency, and functionality of residential and public buildings. Insulating glass, a composite glass product that uses a dry gas spacer to block heat conduction, has gradually become the preferred material for the light-transmitting parts of building envelopes due to its excellent thermal insulation performance, anti-condensation properties, and structural design flexibility. Traditional insulating glass typically uses a double-glazed, single-cavity structure, relying mainly on the dry gas within the air cavity between the two panes for thermal insulation, and employing a coating on the glass to reduce the heat exchange efficiency between the air cavity and the glass surface. This results in poor thermal insulation performance, failing to meet the ultra-low energy consumption requirements of high-rise buildings. Summary of the Invention

[0003] In view of this, the present invention provides a thin-film type insulated glass to solve the problem that the thermal insulation performance of existing insulated glass is poor and cannot meet the ultra-low energy consumption requirements of high-altitude buildings.

[0004] This invention provides a thin-film insulated glass unit for use at high altitudes in buildings. The thin-film insulated glass unit includes an outer glass layer, a middle glass layer, and an inner glass layer arranged sequentially from the outside to the inside along a first direction. The thickness direction of the outer glass layer is configured in the first direction. A low-emissivity film is attached to the inward-facing side of the outer glass layer, the middle glass layer, and the inner glass layer. A sealed first cavity is formed between the outer glass layer and the middle glass layer, and a sealed second cavity is formed between the middle glass layer and the inner glass layer. The first cavity and the second cavity have the same thickness, with the thickness of the first cavity set to be between 6 mm and 15 mm. Both the first cavity and the second cavity are filled with a heat-insulating gas to ensure that the heat transfer coefficient of the thin-film insulated glass is at most 0.800 W / (m²·K).

[0005] According to the present invention, a thin-film type insulating glass has at least the following beneficial effects:

[0006] By firmly attaching a low-emissivity film to the inner side of the outer, middle, and inner glass layers, and with the first and second cavities having the same thickness (6 mm to 15 mm), a multi-layered low-emissivity barrier is formed. This reduces the heat exchange efficiency between the first and second cavities and the glass surface. Combined with the filling gas inside the 6 mm to 15 mm thick first and second cavities, the overall thermal insulation performance of this thin-film insulated glass is effectively improved, resulting in a heat transfer coefficient of less than 0.800 W / (m²·K). This allows buildings equipped with this thin-film insulated glass to meet ultra-low energy consumption requirements at high altitudes, achieving energy conservation and carbon reduction. Furthermore, the outer, middle, and inner glass layers work together to form a stable three-layer structure. The low-emissivity film firmly attached to the inner surfaces of the outer, middle, and inner glass layers disperses external impact forces, reducing the probability of direct glass breakage. In the event of breakage, glass fragments are adhered to the film surface, preventing shards from flying and falling, ensuring safety. This design is particularly suitable for high-rise building windows.

[0007] In one alternative embodiment, the outer glass layer has a thickness of 4 to 5 millimeters, the middle glass layer has a thickness of 1 to 2 millimeters, and the inner glass layer has a thickness of 2 to 3 millimeters.

[0008] In one alternative embodiment, the thickness of the first cavity is set to 6 mm to 12 mm, and the filling gas is set to krypton or a mixture of krypton and air.

[0009] In one alternative implementation, the ratio of air to krypton in the krypton-air mixture is 5:95.

[0010] In one alternative implementation, when the thickness of the first cavity is set to 9 mm, the filling gas is krypton.

[0011] In one alternative embodiment, the thickness of the first cavity is greater than 12 mm and at most 15 mm, and the filling gas is one of argon, krypton, a mixture of argon and air, or a mixture of krypton and air.

[0012] In one alternative embodiment, the thickness of the first cavity is 15 mm, and the filling gas is set to argon or a mixture of argon and air.

[0013] In one alternative implementation, the ratio of air to krypton in the krypton-air mixture is 5:95.

[0014] In one alternative embodiment, the ratio of air to argon in the argon-air mixture is 5:95.

[0015] In one optional embodiment, the low-emissivity film is configured as one of a single-silver Low-E film, a double-silver Low-E film, or a triple-silver Low-E film. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a thin-film type insulated glass according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1-Outer glass, 2-Middle glass, 4-Inner glass, 4-First cavity, 5-Second cavity, 6-Low-emissivity film. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0022] The following is combined with Figure 1 The following describes embodiments of the present invention.

[0023] According to an embodiment of the present invention, a thin-film insulated glass is applied at high altitudes of buildings. The thin-film insulated glass includes an outer glass layer 1, a middle glass layer 2, and an inner glass layer 3 arranged sequentially from the outside to the inside along a first direction. A low-emissivity film 6 is attached to the inward-facing side of the outer glass layer 1, the middle glass layer 2, and the inner glass layer 3. A sealed first cavity 4 is formed between the outer glass layer 1 and the middle glass layer 2, and a sealed second cavity 5 is formed between the middle glass layer 2 and the inner glass layer 3. The first cavity 4 and the second cavity 5 have the same thickness. The thickness of the first cavity 4 is set to 6 mm to 15 mm. Both the first cavity 4 and the second cavity 5 are filled with a heat-insulating gas to make the heat transfer coefficient of the thin-film insulated glass less than 0.800 W / (m²·K).

[0024] Compared with the prior art, the thin-film insulated glass of this embodiment has a low-emissivity film 6 firmly attached to the outer glass 1, the middle glass 2, and the inner glass 3 on the inward-facing side. The first cavity 4 and the second cavity 5 have the same thickness, which is set to 6 mm to 15 mm. On the one hand, this forms a multi-layer low-emissivity barrier, reducing the heat exchange efficiency between the first cavity 4 and the second cavity 5 and the glass surface. On the other hand, the filling gas disposed inside the 6 mm to 15 mm thick first cavity 4 and second cavity 5 can effectively improve the overall heat insulation performance of the thin-film insulated glass of this embodiment, thus improving the heat transfer efficiency of the thin-film insulated glass of this embodiment. With a thermal coefficient of less than 0.800 W / (m²·K), the high-altitude areas of buildings equipped with the thin-film insulated glass of this embodiment can meet the requirements for ultra-low energy consumption, achieving the effect of energy saving and carbon reduction. On the other hand, the outer glass 1, the middle glass 2, and the inner glass 3 work together to form a stable three-layer integrated structure. The low-emissivity film 6, which is firmly attached to the inner surfaces of the outer glass 1, the middle glass 2, and the inner glass 3, can disperse external impact forces, reduce the probability of direct glass breakage, and can adhere glass fragments to the film surface when the glass breaks, preventing fragments from flying and falling, thus ensuring safety. It is particularly suitable as a high-rise window for buildings.

[0025] It should be noted that the low-emissivity film 6 is firmly attached to the inner surfaces of the outer glass 1, the middle glass 2, and the inner glass 3, which can reduce the heat radiated indoors and block the infrared heat in the outdoor solar radiation, thereby reducing energy consumption and saving energy.

[0026] It should be noted that in this embodiment, the low-emissivity film 6 is attached to the inner surface of the inner glass 3, which supports convenient replacement and can extend the service life of the thin-film insulated glass in this embodiment. In particular, the film of the inner glass can be replaced according to the different needs of winter and summer. For example, in the cold winter, the low-emissivity film can be used to reduce the heat loss from the room, thereby keeping the room warm and comfortable. In the hot summer, it can be replaced with Sun-E film to better prevent outdoor heat from entering the room, thereby reducing the energy consumption of air conditioning, effectively adjusting the indoor temperature, and achieving the effect of energy saving and environmental protection.

[0027] In practical applications, the thin-film insulated glass of this embodiment is used at the high altitude of a building, which can meet the requirements for thermal insulation and safety protection at the high altitude of a building.

[0028] It is understood that the "first direction" mentioned in the text refers to the thickness direction of the outer glass 1, that is, the thickness direction of the thin-film type insulating glass in this embodiment. For ease of description, it is referred to as... Figure 1 The first direction in the text is described as the first direction, but is not used to specifically limit the thickness direction of the outer glass layer 1.

[0029] Understandably, when the heat transfer coefficient is less than or equal to 0.800 W / (m²·K), the insulation performance level reaches near-zero energy consumption, meeting the ultra-low energy consumption requirements for high-altitude buildings.

[0030] It is understood that the side facing outward in the first direction refers to the side facing the outside after the thin-film insulated glass of this embodiment is installed in the building, and the side facing inward in the first direction refers to the side facing the inside after the thin-film insulated glass of this embodiment is installed in the building.

[0031] In some embodiments, the thickness of the first cavity 4 is set to 6 mm to 12 mm, and the filling gas is set to krypton or a mixture of krypton and air. With this configuration, as shown in Tables 1 and 2 below, when the thickness of the first cavity 4 and the second cavity 5 is set to 6 mm, 9 mm, or 12 mm, compared to setting the filling gas to argon or a mixture of argon and air, under different conditions, by setting the filling gas to krypton or a mixture of krypton and air, and when the filling gas is a mixture of krypton and air, setting the air-to-krypton ratio to 5:95, it is more beneficial to reduce the heat transfer coefficient of this embodiment, making the heat transfer coefficient at most 0.759 W / (m²·K); equivalent to a heat transfer coefficient of approximately 2.8 W / (m²·K) for conventional insulated glass. This embodiment can ensure that the ultra-low energy consumption requirements at high altitudes of buildings are met.

[0032] Specifically, the thickness of the first cavity 4 is set to 9 mm, and the filling gas is set to krypton or a mixture of krypton and air. When the filling gas is a mixture of krypton and air, the ratio of air to krypton is set to 5:95. This ensures that the heat transfer coefficient is at most 0.640 W / (m²·K) without significantly increasing the thickness of this embodiment. This ensures that the ultra-low energy consumption requirements at high altitudes of buildings are met while reducing the overall weight of the thin-film insulated glass in this embodiment. This significantly reduces the load on buildings and is beneficial for installation at high altitudes of buildings.

[0033] Understandably, the smaller the heat transfer coefficient mentioned in the article, the better the heat insulation effect.

[0034] In some embodiments, the thickness of the first cavity 4 is greater than 12 mm and at most 15 mm, and the filling gas is one of argon, krypton, a mixture of argon and air, or a mixture of krypton and air; wherein when the filling gas is a mixture of argon and air, the ratio of air to argon is 5:95; and when the filling gas is a mixture of krypton and air, the ratio of air to krypton is 5:95. As shown in Tables 1 and 2 below, when the thickness of the first cavity 4 and the second cavity 5 is greater than 12 mm and less than or equal to 15 mm, under different conditions, by setting the filling gas to one of argon, krypton, a mixture of argon and air, or a mixture of krypton and air, it is beneficial to reduce the heat transfer coefficient of this embodiment and make the heat transfer coefficient at most 0.713 W / (m²·K); which is equivalent to a heat transfer coefficient of about 2.8 W / (m²·K) for traditional insulated glass. This embodiment can ensure that the ultra-low energy consumption requirements at high altitudes of buildings are met.

[0035] Specifically, the thickness of the first cavity 4 is set to 15 mm, and the filling gas is set to argon or a mixture of argon and air, wherein when the filling gas is a mixture of argon and air, the ratio of air to argon is 5:95. As shown in Tables 1 and 2 below, when the thickness of the first cavity 4 and the second cavity 5 is 15 mm, and under the premise that other conditions remain unchanged, the heat transfer coefficients of the thin-film insulated glass are not significantly different (i.e., the heat transfer coefficients differ by at most 0.053 W / (m²·K)). In this embodiment, under the premise that the thickness of the first cavity 4 and the second cavity 5 is 15 mm, the filling gas is set to argon or a mixture of argon and air, thereby reducing the manufacturing cost of the thin-film insulated glass while ensuring that the heat transfer coefficient of the thin-film insulated glass is at most 0.713 W / (m²·K)).

[0036] It is understandable that krypton is a rare gas that is more expensive than argon. In this embodiment, argon is added to the first cavity 4 and the second cavity 5 instead of krypton, while ensuring that the heat transfer coefficients are not significantly different. This helps to reduce the manufacturing cost of thin-film insulated glass.

[0037] In some embodiments, the thickness of the outer glass layer 1 is set to 4 mm to 5 mm, the thickness of the middle glass layer 2 is set to 1 mm to 2 mm, and the thickness of the inner glass layer 3 is set to 2 mm to 3 mm. With this configuration, as shown in Tables 1 and 2 below, it is possible to reduce the overall weight of the thin-film insulated glass in this embodiment while meeting the ultra-low energy consumption requirements at high altitudes of buildings (specifically, the heat transfer coefficient of the thin-film insulated glass is at most 0.713 W / (m²·K)). This significantly reduces the load-bearing burden on buildings equipped with the thin-film insulated glass of this embodiment, making it suitable for installation at high altitudes of buildings.

[0038] It is understood that the thickness of the outer glass 1 mentioned in the text includes the thickness of the low-emissivity film 6 attached to the inner surface of the outer glass 1; the thickness of the middle glass 2 mentioned in the text includes the thickness of the low-emissivity film 6 attached to the inner surface of the middle glass 2; and the thickness of the inner glass 3 mentioned in the text includes the thickness of the low-emissivity film 6 attached to the inner surface of the inner glass 3.

[0039] In some embodiments, the low-emissivity film 6 is configured as one of a single-silver Low-E film, a double-silver Low-E film, or a triple-silver Low-E film; as shown in Tables 1 and 2 below, the single-silver Low-E film, double-silver Low-E film, or triple-silver Low-E film is firmly attached to the inner surface of the outer glass 1, the middle glass 2, and the inner glass 3, which can reduce the heat radiated from the room and block the infrared heat in the outdoor solar radiation, which is beneficial to reducing the heat transfer coefficient of the thin-film insulating glass in this embodiment, thereby reducing energy consumption and saving energy.

[0040] Understandably, triple silver Low-E film significantly improves the thermal insulation performance of thin-film insulated glass compared to double silver Low-E film, and double silver Low-E film significantly improves the thermal insulation performance of thin-film insulated glass compared to single silver Low-E film.

[0041] It is understandable that single-silver Low-E films, double-silver Low-E films, or triple-silver Low-E films have good tensile strength and toughness.

[0042] It should be noted that, during long-term use, the three layers of low-emissivity film 6 of the thin-film insulating glass in this embodiment can effectively block heat radiation, thereby reducing energy consumption and achieving overall cost savings.

[0043] It should be noted that single-silver Low-E film has an emissivity of approximately 0.15, offering superior heat insulation performance compared to ordinary glass. It also boasts high visible light transmittance, meeting lighting requirements, and a moderate shading coefficient. In summer, it can block some near-infrared heat radiation, reducing indoor heat loss and external heat gain, effectively improving energy efficiency. Double-silver Low-E film offers 30% better heat insulation than single-silver Low-E film, with even lower emissivity and visible light transmittance similar to single-silver Low-E film, but with a lower shading coefficient. It effectively blocks heat radiation, reducing energy consumption; it also filters some ultraviolet rays, reducing fading and aging of indoor furniture and decorations, extending their lifespan; long-term use can reduce building energy consumption and carbon emissions. Triple-silver Low-E film has the lowest emissivity (approximately 0.02) and offers the best heat insulation performance, filtering 90% of near-infrared heat radiation.

[0044] The thickness of the outer glass 1 was set to 4 mm. By changing other conditions, thin-film insulated glass of different specifications were obtained, and the heat insulation performance was tested and obtained as shown in Table 1 below.

[0045] Table 1. Heat transfer coefficients of thin-film insulated glass units with an outer glass layer thickness of 4 mm and different specifications.

[0046] In Table 1 above, the length and width dimensions of different specifications of thin-film insulated glass are 3300mm × 2000mm. A refers to air, Ar refers to argon, Kr refers to krypton, (5%A+95%Ar) refers to a mixture of 5% air and 95% argon, and (5%A+95%Kr) refers to a mixture of 5% air and 95% krypton. The 4mm Low-E glass in the second row of Table 1 refers to the outer glass 1 with a thickness of 4 mm and a low-emissivity film 6 firmly attached to its inner surface. The 6mmAr in the second row of Table 1 refers to argon filling the first cavity 4 or the second cavity 5 with a thickness of 6 mm. The 1mm Low-E glass in the second row of Table 1 refers to the middle glass 2 with a thickness of 1 mm and a low-emissivity film 6 firmly attached to its inner surface. The 2mm Low-E glass in the second row of Table 1 refers to the inner glass 3 with a thickness of 2 mm and a low-emissivity film 6 firmly attached to its inner surface.

[0047] As can be seen from Table 1 above: ① When the thickness of the first cavity 4 and the second cavity 5 is 6 mm or 9 mm, under the premise that other conditions remain unchanged, filling with a mixture of 5% air and 95% argon or krypton can significantly reduce the heat transfer coefficient of the thin-film insulated glass. ② When the thickness of the first cavity 4 and the second cavity 5 is 15 mm, under the premise that other conditions remain unchanged, the heat transfer coefficient of the thin-film insulated glass is not significantly different when the filling gas is set to argon, krypton, a mixture of argon and air, or a mixture of krypton and air. ③ When the thickness of the outer glass 1 is 4 mm, the thickness of the middle glass 2 is 2 mm, the thickness of the inner glass 3 is 2 mm, the low-emissivity film 6 is a triple silver Low-E film, the thickness of the first cavity 4 and the second cavity 5 is 9 mm, and krypton is placed in the first cavity 4 and the second cavity 5, the heat insulation performance of the thin-film insulated glass is optimal, with a heat transfer coefficient of 0.501 W / (m²·K).

[0048] The thickness of the outer glass 1 was set to 5 mm, and other conditions were changed to obtain thin-film insulated glass of different specifications. The thermal insulation performance was tested and obtained as shown in Table 2 below.

[0049] Table 2. Heat transfer coefficients of thin-film insulated glass with an outer glass layer thickness of 5 mm and different specifications.

[0050] In Table 2 above, the length and width dimensions of different specifications of thin-film insulated glass are 3300mm × 2000mm. A refers to air, Ar refers to argon, Kr refers to krypton, (5%A+95%Ar) refers to a mixture of 5% air and 95% argon, and (5%A+95%Kr) refers to a mixture of 5% air and 95% krypton. The 5mm Low-E glass in the third row of Table 2 refers to the outer glass 1 with a thickness of 5 mm and a low-emissivity film 6 firmly attached to its inner surface. The 6mmKr in the third row of Table 2 refers to krypton filling the first cavity 4 or the second cavity 5 with a thickness of 6 mm. The 1mm Low-E glass in the third row of Table 2 refers to the middle glass 2 with a thickness of 1 mm and a low-emissivity film 6 firmly attached to its inner surface. The 3mm Low-E glass in the third row of Table 2 refers to the inner glass 3 with a thickness of 3 mm and a low-emissivity film 6 firmly attached to its inner surface.

[0051] As can be seen from Table 2 above: ① When the thickness of the first cavity 4 and the second cavity 5 is 6 mm or 9 mm, under the premise that other conditions remain unchanged, the heat transfer coefficient of the thin-film insulated glass can be significantly reduced by using a mixture of 5% air and 95% argon or by using krypton as the filling gas. ② When the thickness of the first cavity 4 and the second cavity 5 is 15 mm, under the premise that other conditions remain unchanged, the heat transfer coefficient of the thin-film insulated glass is not significantly different when the filling gas is set to argon, krypton, a mixture of argon and air, or a mixture of krypton and air. ③ When the thickness of the outer glass 1 is 5 mm, the thickness of the middle glass 2 is 1 mm or 2 mm, the thickness of the inner glass 3 is 2 mm, the low-emissivity film 6 is a triple silver Low-E film, the thickness of the first cavity 4 and the second cavity 5 is 9 mm, and krypton is installed in the first cavity 4 and the second cavity 5, the heat insulation performance of the thin-film insulated glass is optimal, with a heat transfer coefficient of 0.500 W / (m²·K).

[0052] From Tables 1 and 2 above, it can be seen that: ① When other conditions remain unchanged, the heat transfer coefficient of the thin-film insulated glass is not significantly different when the thickness of the outer glass 1 is 4mm or 5mm, the thickness of the inner glass 3 is 3mm, and the thickness of the middle glass 2 is 1mm or 2mm. ② When the filling gas is set to krypton or a mixture of krypton and air, the heat transfer coefficient gradually increases as the thickness of the first cavity 4 gradually increases from 12mm to 15mm.

[0053] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended invention.

Claims

1. A thin-film type insulating glass, characterized in that, For use at high altitudes in buildings, the thin-film insulated glass comprises an outer glass layer (1), a middle glass layer (2), and an inner glass layer (3) arranged sequentially from the outside to the inside along a first direction. The thickness direction of the outer glass layer (1) is configured in the first direction. A low-emissivity film (6) is attached to the inward side of the outer glass layer (1), the middle glass layer (2), and the inner glass layer (3). A sealed first cavity (4) is formed between the outer glass layer (1) and the middle glass layer (2), and a sealed second cavity (5) is formed between the middle glass layer (2) and the inner glass layer (3). The first cavity (4) and the second cavity (5) have the same thickness. The thickness of the first cavity (4) is set to 6 mm to 15 mm. Both the first cavity (4) and the second cavity (5) are filled with a heat-insulating gas so that the heat transfer coefficient of the thin-film insulated glass is at most 0.800 W / (m²·K).

2. The thin-film type insulating glass according to claim 1, characterized in that, The outer glass (1) has a thickness of 4 mm to 5 mm, the middle glass (2) has a thickness of 1 mm to 2 mm, and the inner glass (3) has a thickness of 2 mm to 3 mm.

3. The thin-film type insulating glass according to claim 1 or 2, characterized in that, The thickness of the first cavity (4) is set to 6 mm to 12 mm, and the filling gas is set to krypton or a mixture of krypton and air.

4. The thin-film type insulating glass according to claim 3, characterized in that, In the mixture of krypton and air, the ratio of air to krypton is 5:

95.

5. The thin-film type insulating glass according to claim 3, characterized in that, When the thickness of the first cavity (4) is set to 9 mm, the filling gas is set to krypton.

6. The thin-film type insulating glass according to claim 1 or 2, characterized in that, The thickness of the first cavity (4) is greater than 12 mm and at most 15 mm, and the filling gas is set to one of argon, krypton, a mixture of argon and air, or a mixture of krypton and air.

7. The thin-film type insulating glass according to claim 6, characterized in that, The thickness of the first cavity (4) is 15 mm, and the filling gas is set to argon or a mixture of argon and air.

8. The thin-film type insulating glass according to claim 6, characterized in that, In the mixture of krypton and air, the ratio of air to krypton is 5:

95.

9. The thin-film type insulating glass according to claim 6, characterized in that, In the mixture of argon and air, the ratio of air to argon is 5:

95.

10. The thin-film type insulating glass according to claim 2, characterized in that, The low-emissivity film (6) is configured as one of a single-silver Low-E film, a double-silver Low-E film, or a triple-silver Low-E film.

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