Heat insulation glass, double-layer glass and household appliance

Abstract

The utility model provides heat-insulating glass, double-layer glass and household appliances, and the heat-insulating glass comprises a glass body; the aerogel film is arranged on the first side of the glass body; the at least two layers of infrared light reflecting films are arranged on the first side or the second side of the glass body; wherein the first side and the second side are two opposite sides of the glass body. The aerogel film and the infrared light reflecting film are arranged on the side face of the heat insulation glass at the same time, the aerogel film has the characteristic of low conductivity and can reduce heat conduction of the glass, the infrared light reflecting film can reflect infrared light, and therefore heat radiation can be reduced, namely heat conduction and heat radiation are reduced at the same time, the heat insulation effect of the heat insulation glass is improved, and the service life of the heat insulation glass is prolonged. The thickness of the heat insulation glass does not need to be too large, and the good heat insulation effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-insulating glass, in particular to a heat-insulating glass, a double-layer glass and a household appliance. Background Art

[0002] Current insulating glass is usually vacuum glass. To ensure the insulating effect of vacuum glass, a larger spacing is required between the glass plates, which will make the glass thicker overall. Another commonly used insulating glass is to add a low-E (Low-Emissivity) film on the glass surface to reflect thermal radiation. Although this setting can limit the energy loss caused by thermal radiation, the thermal insulation effect is poor.

[0003] In addition, the current heat-insulating glass has poor sound insulation effect, so both the heat insulation and sound insulation effects need to be improved. Utility Model Content

[0004] The utility model aims to at least solve the technical problem of poor heat insulation effect existing in the prior art or related technology.

[0005] To this end, the first aspect of the utility model is to provide a heat-insulating glass.

[0006] A second aspect of the utility model provides a double-layer glass.

[0007] The third aspect of the utility model provides a household appliance.

[0008] The utility model provides a heat-insulating glass comprising: a glass body; an aerogel film arranged on a first side of the glass body; and at least two layers of infrared light reflecting films arranged on the first side or the second side of the glass body; wherein the first side and the second side are opposite sides of the glass body.

[0009] The side of the insulating glass of the utility model is provided with an aerogel film and an infrared light reflecting film at the same time. The aerogel film has the characteristic of low conductivity and can reduce the heat conduction of the glass, while the infrared light reflecting film can reflect infrared light, thus reducing heat radiation, that is, reducing "heat conduction" and "heat radiation" at the same time, so as to improve the heat insulating effect of the insulating glass, and the heat insulating effect is better. The thickness of the insulating glass of the utility model does not need to be too large to have a good heat insulating effect.

[0010] In addition, the infrared light reflective film is set to have at least two layers. This is mainly because most infrared light reflective films are metal films. In this way, at least two layers of infrared light reflective films can constitute multiple metal layers, and multiple metal layers can reduce the propagation of sound waves through interference effect and resonance effect, thereby achieving sound insulation effect. That is, this setting not only ensures low emissivity, but also has a very good sound insulation effect.

[0011] Optionally, the infrared light reflecting film is arranged on the second side of the glass body. This arrangement can make the connection strength between the aerogel film and the infrared light reflecting film and the glass body better. This is because the two sides of the glass body are more convenient to polish. In this way, after the aerogel film and the infrared light reflecting film are sprayed on different sides of the glass body, the connection strength between the aerogel film and the glass body and the connection strength between the infrared light reflecting film and the glass body are higher.

[0012] In some embodiments, optionally, an infrared light reflecting film is disposed on the first side of the glass body, and the infrared light reflecting film is disposed between the glass body and the aerogel film.

[0013] In this embodiment, the infrared light reflecting film is arranged between the glass body and the aerogel film. This arrangement is because, usually, the infrared light reflecting film is made of silver film, copper film, etc., which is easily oxidized. Conventionally, it is necessary to add an anti-oxidation film, such as an aluminum oxide film, on the outside of the infrared light reflecting film to prevent the infrared light reflecting film from being oxidized. The infrared light reflecting film is arranged between the glass body and the aerogel film. In this way, the aerogel film can not only achieve heat insulation, but also prevent the infrared light reflecting film from being oxidized, and the anti-oxidation film is omitted.

[0014] In some embodiments, optionally, the infrared light reflecting film is disposed on the second side of the glass body, and the heat-insulating glass further comprises: an anti-oxidation film disposed on a side of the infrared light reflecting film away from the glass body.

[0015] In this embodiment, the anti-oxidation film can prevent the infrared light reflecting film from being oxidized, thereby protecting the infrared light reflecting film.

[0016] In some embodiments, optionally, the anti-oxidation film includes one or a combination of the following: an aluminum oxide film, a polyacrylic acid film, a polyetherester film, and a silicone rubber film.

[0017] In this embodiment, the aluminum oxide film, the polyacrylic acid film, the polyether ester film and the silicone rubber film all have good oxidation resistance, and thus can play a certain protective role on the infrared light reflecting film.

[0018] In some embodiments, optionally, the infrared light reflecting film includes one or a combination of the following: a silver film, a copper film, and a tin film.

[0019] In this embodiment, the silver film, the copper film and the tin film all have a good function of reflecting infrared light, and the silver film and the copper film have high transmittance to visible light.

[0020] In some embodiments, the infrared light reflective film may be two or three layers. Of course, it may be more than or equal to three layers according to the requirements.

[0021] In some embodiments, optionally, the thickness of the infrared light reflecting film is less than or equal to 20 nm.

[0022] In this embodiment, the thickness of the infrared light reflective film is less than or equal to 20nm. If the thickness of the infrared light reflective film is too high, the effect of reflecting thermal radiation will not be significantly improved. If the thickness of the infrared light reflective film is too thin, the effect of reflecting thermal radiation is low. Therefore, the thickness of the infrared light reflective film is greater than or equal to 10nm and less than or equal to 20nm. Optionally, the thickness of the infrared light reflective film is 13nm to 18nm, for example, 15nm or 16nm.

[0023] In some embodiments, optionally, the thickness of the aerogel film is greater than or equal to 2 mm and less than or equal to 4 mm.

[0024] In this embodiment, if the thickness of the aerogel film is too large, the material is wasted and the heat insulation effect cannot be significantly improved. If the thickness of the aerogel film is too small, the heat insulation effect is poor. Therefore, it is most appropriate to set the thickness of the aerogel film to 2 mm to 4 mm. For example, the thickness of the aerogel film is 3 mm or 4 mm.

[0025] In some embodiments, optionally, the aerogel membrane includes a porous structure, and the pore size of the porous structure is greater than or equal to 20 nm and less than or equal to 50 nm.

[0026] In this embodiment, the porous structure causes the air molecules in the pores of the aerogel film to lose the ability to flow freely, and is in a nearly vacuum state, and cannot conduct heat convection. Therefore, heat convection is effectively suppressed, reducing the efficiency of heat transfer. Optionally, the pore size of the porous structure is greater than or equal to 30nm and less than or equal to 40nm, for example, 30nm, 35nm or 40nm.

[0027] In some embodiments, optionally, the aerogel film includes one or a combination of the following: a silicon aerogel film, a carbon aerogel film, and a metal oxide aerogel film.

[0028] In this embodiment, the silicon aerogel film, the carbon aerogel film and the metal oxide aerogel film are all porous structures and have a high thermal insulation effect.

[0029] In some embodiments, optionally, the insulating glass includes single-layer insulating glass, double-layer insulating glass, or multi-layer insulating glass.

[0030] The second aspect of the utility model provides a double-layer glass, which includes: a first glass layer; a second glass layer, which is arranged on one side of the first glass layer; an aerogel film, which is arranged between the first glass layer and the second glass layer; and at least two layers of infrared light reflecting films, which are arranged on a side of the first glass layer or the second glass layer away from the aerogel film.

[0031] The double-layer glass of the present invention is provided with an aerogel film and an infrared light reflecting film at the same time. The aerogel film has the characteristic of low conductivity and can reduce the heat conduction of the glass, while the infrared light reflecting film can reflect infrared light, thereby reducing heat radiation, that is, reducing "heat conduction" and "heat radiation" at the same time, so as to improve the heat insulating effect of the heat insulating glass, and the heat insulating effect is better. The heat insulating glass of the present invention does not need to be too thick to have a good heat insulating effect.

[0032] In addition, the infrared light reflective film is set to at least two layers. This is mainly because most infrared light reflective films are metal films. In this way, at least two layers of infrared light reflective films can constitute a multi-layer metal layer, and the multi-layer metal layer can reduce the propagation of sound waves through interference effect and resonance effect, thereby achieving a sound insulation effect. That is, this setting not only ensures low emissivity, but also has a very good sound insulation effect. In some embodiments, optionally, the double-layer glass also includes: an anti-oxidation film, which is arranged on the side of the infrared light reflective film away from the aerogel film.

[0033] In this embodiment, the anti-oxidation film can prevent the infrared light reflecting film from being oxidized, thereby protecting the infrared light reflecting film.

[0034] In some embodiments, optionally, the infrared light reflecting film of the double-layer glass has two layers or three layers.

[0035] The third aspect of the utility model provides a household appliance, comprising the heat-insulating glass according to any technical solution of the first aspect of the utility model; or comprising the double-layer glass according to any technical solution of the second aspect of the utility model.

[0036] Since the household appliance provided by the utility model includes the insulating glass of any technical solution of the first aspect of the utility model; or includes the double-layer glass of any technical solution of the second aspect of the utility model, it has all the beneficial effects of the insulating glass of any technical solution of the first aspect of the utility model; or the double-layer glass of any technical solution of the second aspect of the utility model.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0039] Figure 1 A schematic diagram of the structure of insulating glass in the related art is shown;

[0040] Figure 2A schematic structural diagram of Low-E glass in the related art is shown.

[0041] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0042] 1' insulating glass, 11' air, 12' first glass, 2' Low-E glass, 21' Low-E film, 22' second glass.

[0043] Figure 3 One of the structural schematic diagrams of the heat-insulating glass of the utility model is shown;

[0044] Figure 4 The second structural schematic diagram of the heat-insulating glass of the utility model is shown;

[0045] Figure 5 The schematic diagram of the structure of the double-layer glass of the utility model is shown;

[0046] Figure 6 The schematic diagram of the structure of the aerogel film of the utility model is shown;

[0047] Figure 7 One of the structural schematic diagrams of the household appliance of the utility model is shown;

[0048] Figure 8 The second structural schematic diagram of the household appliance of the utility model is shown.

[0049] in, Figures 3 to 8 The corresponding relationship between the reference numerals and the component names is as follows:

[0050] 1 household appliance, 11 insulating glass, 111 glass body, 1111 first side, 1112 second side, 112 aerogel film, 1122 porous structure, 113 infrared light reflective film, 114 antioxidant film, 12 double-layer glass, 121 first glass layer, 122 second glass layer, 13 heating tube. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above aspects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0053] First of all, it is important to understand that thermal insulation glass has a wide range of applications. It is mainly used in building exterior walls, windows, ceilings, partitions, display cabinets, and microwave ovens and home appliances. It has excellent thermal insulation properties, can reduce energy consumption, and improve energy efficiency.

[0054] The insulation principle of insulating glass is essentially to minimize the energy exchange between the inside and the outside (i.e., both sides of the glass) by suppressing heat conduction, heat convection or heat radiation.

[0055] Among them, heat conduction refers to the heat transfer method through the vibration, collision and transfer of molecules inside the material. The rate of heat conduction depends on the thermal conductivity of the material, the temperature difference and the thickness of the material.

[0056] Heat conduction follows Fourier's law:

[0057]

[0058] Where Q is the heat, A is the heat transfer area, λ is the thermal conductivity, is the temperature gradient.

[0059] Thermal radiation refers to the heat transfer method through electromagnetic wave radiation. The rate of thermal radiation depends on the temperature, surface characteristics and radiation wavelength of the object. Thermal radiation follows the Stefan-Boltzmann law:

[0060]

[0061] ε is the emissivity, Q is the heat, σ is the Stefan-Boltzmann constant, A is the heat transfer area, T1 is the absolute temperature of the object, and T2 is the absolute temperature of the surrounding environment.

[0062] The main feature of existing insulating glass is that one or more layers of insulating materials, such as air, inert gas, insulating film, etc., are added to the glass. These insulating materials can effectively block the transfer of heat, thereby improving the thermal insulation performance of the glass and reducing energy consumption.

[0063] At present, there are two types of thermal insulation glass that are most widely used. The first type is Figure 1The insulating glass 1' shown includes two layers of first glass 12' and air 11' between the two layers of first glass 12'. However, the high heat-insulating performance of the insulating glass 1' requires a larger spacing between the two layers of first glass 12' (resulting in thicker glass overall), which is limited by gas convection (the air 11' in the hollow will intensify heat convection and reduce the insulation effect), the number of glass plates and the overall structure. If a thinner insulating glass 1' is used, higher processing and manufacturing requirements are imposed on the sealing integrity of the insulating glass 1', and the cost is higher. The insulation effect of the insulating glass 1' still has room for improvement. The second type, such as Figure 2 The Low-E glass 2' shown includes a second glass 22' and a Low-E film 21'. The Low-E film 21' is usually low-emissivity silver. The low-emissivity silver coated thereon can limit the energy loss caused by electromagnetic radiation similar to a black body, but can only reflect part of the energy and has a poor heat insulation effect.

[0064] Therefore, the heat insulation effects of the above-mentioned insulating glass 1' and Low-E glass 2' are limited. Based on this, the utility model provides a heat-insulating glass 11 with good heat insulation effect.

[0065] like Figure 3 As shown, the insulating glass 11 of this embodiment includes a glass body 111, an aerogel film 112 and an infrared light reflecting film 113, the aerogel film 112 is arranged on the first side 1111 of the glass body 111; at least two layers of infrared light reflecting films 113 are arranged on the first side 1111 or the second side 1112 of the glass body 111; wherein the first side 1111 and the second side 1112 are opposite sides of the glass body 111.

[0066] The side of the insulating glass 11 of the utility model is provided with an aerogel film 112 and an infrared light reflecting film 113 at the same time. The aerogel film 112 has the characteristic of low conductivity and can reduce the heat conduction of the glass, while the infrared light reflecting film 113 can reflect infrared light, which can reduce thermal radiation, that is, reduce "heat conduction" and "heat radiation" at the same time, so as to improve the thermal insulation effect of the insulating glass 11, and the thermal insulation effect is better. The thickness of the insulating glass 11 of the utility model does not need to be too large to have a good thermal insulation effect.

[0067] In this embodiment, the infrared light reflection film 113 has at least two layers, mainly because most of the infrared light reflection films 113 are metal films, so at least two layers of infrared light reflection films 113 can constitute multiple metal layers, and the multiple metal layers can reduce the propagation of sound waves through interference effect and resonance effect, thereby achieving sound insulation effect. That is, this setting not only ensures low emissivity, but also has a very good sound insulation effect.

[0068] Optionally, the infrared light reflecting film 113 is arranged on the second side 1112 of the glass body 111. This arrangement can make the connection strength between the aerogel film 112 and the infrared light reflecting film 113 and the glass body 111 better. This is because the two sides of the glass body 111 are more convenient to polish. In this way, after the aerogel film 112 and the infrared light reflecting film 113 are sprayed on different sides of the glass body 111, the connection strength between the aerogel film 112 and the glass body 111 and the connection strength between the infrared light reflecting film 113 and the glass body 111 are higher.

[0069] In some embodiments, optionally, the infrared light reflecting film 113 is disposed on the first side 1111 of the glass body 111 , and the infrared light reflecting film 113 is disposed between the glass body 111 and the aerogel film 112 .

[0070] In this embodiment, the infrared light reflecting film 113 is arranged between the glass body 111 and the aerogel film 112. This arrangement is because, usually, the infrared light reflecting film 113 is made of silver film, copper film, etc., which is easily oxidized. Conventionally, it is necessary to add an anti-oxidation film 114, such as an aluminum oxide film, etc., on the outside of the infrared light reflecting film 113 to prevent the infrared light reflecting film 113 from being oxidized. The infrared light reflecting film 113 is arranged between the glass body 111 and the aerogel film 112. In this way, the aerogel film 112 can not only achieve heat insulation, but also prevent the infrared light reflecting film 113 from being oxidized, and the anti-oxidation film 114 is omitted.

[0071] In some embodiments, optionally, Figure 4 As shown, the infrared light reflecting film 113 is disposed on the second side 1112 of the glass body 111 , and the insulating glass 11 further includes an anti-oxidation film 114 , which is disposed on a side of the infrared light reflecting film 113 away from the glass body 111 .

[0072] In this embodiment, the anti-oxidation film 114 can prevent the infrared light reflecting film 113 from being oxidized, thereby protecting the infrared light reflecting film 113 .

[0073] In some embodiments, optionally, the anti-oxidation film 114 includes one or a combination of the following: an aluminum oxide film, a polyacrylic acid film, a polyetherester film, and a silicone rubber film.

[0074] In this embodiment, the aluminum oxide film, the polyacrylic acid film, the polyether ester film and the silicone rubber film all have good anti-oxidation properties, and thus can play a certain protective role on the infrared light reflecting film 113 .

[0075] In some embodiments, optionally, the infrared light reflecting film 113 includes one or a combination of the following: a silver film, a copper film, and a tin film.

[0076] In this embodiment, the silver film, the copper film and the tin film all have a good function of reflecting infrared light, and the silver film and the copper film have high transmittance to visible light.

[0077] In some embodiments, the infrared light reflective film 113 may be two or three layers. Of course, it may be three or more layers as required.

[0078] In some embodiments, optionally, the thickness of the infrared light reflecting film 113 is less than or equal to 20 nm.

[0079] In this embodiment, the thickness of the infrared light reflective film 113 is less than or equal to 20nm. If the thickness of the infrared light reflective film 113 is too high, the effect of reflecting thermal radiation will not be significantly improved. If the thickness of the infrared light reflective film 113 is too thin, the effect of reflecting thermal radiation is low. Therefore, the thickness of the infrared light reflective film 113 is greater than or equal to 10nm and less than or equal to 20nm. Optionally, the thickness of the infrared light reflective film 113 is 13nm to 18nm, for example, 15nm or 16nm.

[0080] In some embodiments, optionally, the thickness of the aerogel film 112 is greater than or equal to 2 mm and less than or equal to 4 mm.

[0081] In this embodiment, if the thickness of the aerogel film 112 is too large, the material is wasted and the heat insulation effect is not significantly improved. If the thickness of the aerogel film 112 is too small, the heat insulation effect is poor. Therefore, it is most appropriate to set the thickness of the aerogel film 112 to 2 mm to 4 mm. For example, the thickness of the aerogel film 112 is 3 mm or 4 mm.

[0082] In some embodiments, optionally, Figure 6 As shown, the aerogel film 112 includes a porous structure 1122 , and the pore size of the porous structure 1122 is greater than or equal to 20 nm and less than or equal to 50 nm.

[0083] In this embodiment, the porous structure 1122 makes the air molecules in the pores of the aerogel film 112 lose the ability to flow freely, and is in a nearly vacuum state, and cannot conduct heat convection. Therefore, heat convection is effectively suppressed, reducing the efficiency of heat transfer. Optionally, the pore size of the porous structure 1122 is greater than or equal to 30nm and less than or equal to 40nm, for example, 30nm, 35nm or 40nm.

[0084] In some embodiments, the aerogel film 112 optionally includes one or a combination of the following: a silicon aerogel film, a carbon aerogel film, and a metal oxide aerogel film.

[0085] In this embodiment, the silicon aerogel film, the carbon aerogel film and the metal oxide aerogel film are all porous structures 1122 and have a high thermal insulation effect.

[0086] In some embodiments, optionally, the insulating glass 11 includes single-layer insulating glass, double-layer insulating glass, or multi-layer insulating glass.

[0087] like Figure 5 As shown, the second aspect of the utility model provides a double-layer glass 12, including a first glass layer 121, a second glass layer 122, an aerogel film 112 and at least two layers of infrared light reflecting film 113, the second glass layer 122 is arranged on one side of the first glass layer 121; the aerogel film 112 is arranged between the first glass layer 121 and the second glass layer 122; at least two layers of infrared light reflecting film 113 are arranged on the side of the first glass layer 121 or the second glass layer 122 away from the aerogel film 112.

[0088] The double-layer glass 12 of the present invention is provided with an aerogel film 112 and an infrared light reflecting film 113 at the same time. The aerogel film 112 has the characteristic of low conductivity and can reduce the heat conduction of the glass, while the infrared light reflecting film 113 can reflect infrared light, which can reduce heat radiation, that is, reduce "heat conduction" and "heat radiation" at the same time, so as to improve the heat insulation effect of the insulating glass 11, and the heat insulation effect is better. The thickness of the insulating glass 11 of the present invention does not need to be too large to have a good heat insulation effect.

[0089] In addition, the infrared light reflective film 113 is set to have at least two layers, mainly because most of the infrared light reflective films 113 are metal films, so at least two layers of infrared light reflective films 113 can constitute a multi-layer metal layer, and the multi-layer metal layer can reduce the propagation of sound waves through interference effect and resonance effect, thereby achieving a sound insulation effect. That is, this setting not only ensures low emissivity, but also has a very good sound insulation effect.

[0090] In some embodiments, optionally, the double-layer glass 12 further includes an anti-oxidation film 114 , and the anti-oxidation film 114 is disposed on a side of the at least two layers of infrared light reflecting films 113 away from the aerogel film 112 .

[0091] In this embodiment, the anti-oxidation film 114 can prevent the infrared light reflecting film 113 from being oxidized, thereby protecting the infrared light reflecting film 113 .

[0092] In some embodiments, optionally, the infrared light reflecting film 113 of the double-layer glass 12 is two-layered or three-layered.

[0093] The third aspect of the present invention provides a household appliance 1, comprising a heat-insulating glass 11 according to any one of the technical solutions of the first aspect of the present invention, the structure of which is as follows: Figure 7 and Figure 8 As shown, the household appliance 1 includes a double-layer glass 12 according to any technical solution of the second aspect of the utility model. Figure 8As shown, the household appliance 1 further includes a heating tube 13. Optionally, the household appliance 1 is an oven.

[0094] Since the household appliance 1 provided by the utility model includes the insulating glass 11 of any technical solution of the first aspect of the utility model; or includes the double-layer glass 12 of any technical solution of the second aspect of the utility model, it has all the beneficial effects of the insulating glass 11 of any technical solution of the first aspect of the utility model; or the double-layer glass 12 of any technical solution of the second aspect of the utility model.

[0095] Another embodiment of the utility model provides an insulating glass 11, the surfaces of both sides of which are respectively coated with a Low-E film and a transparent aerogel film 112, which limits the transfer of heat by reducing both thermal radiation and thermal conduction, thereby achieving a good thermal insulation effect. In this solution, the Low-E film is used to reduce thermal radiation, and the transparent aerogel film 112 is used to reduce thermal conduction.

[0096] The Low-E film achieves thermal insulation by reducing thermal emissivity. The Low-E film in this solution is composed of a functional film layer composed of multiple layers of metals (silver, copper, tin, etc.) (thickness <20nm) or other compounds with low emissivity, as well as other non-functional dielectric layers. The Low-E film layer has high visible light transmittance, low thermal emissivity, and high thermal reflectivity. The film layer can significantly reduce the emissivity of the glass surface and reflect a considerable portion of mid- and far-infrared thermal radiation back, thereby preventing the transmission of thermal radiation caused by temperature differences.

[0097] The aerogel film 112 in this solution has extremely low thermal conductivity and can significantly inhibit heat conduction. The internal structure of the aerogel film 112 is composed of nanoparticles or nanofibers that are cross-linked and present a three-dimensional network. The nanoparticles are connected into a skeleton to form a unique three-dimensional mesh porous structure 1122 with a pore size between 20nm-50nm and extremely low thermal conductivity (0.018W / (m·K)); the nanofibers form a three-dimensional sparse nanofiber network. The thermal conductivity of the aerogel film 112 with three-dimensional network structure and nano-void structure is very low, which can significantly inhibit heat conduction. The aerogel film 112 can be coated on one side of a single layer of glass or sandwiched between two layers of glass. The thickness of the aerogel film 112 is 2mm-4mm.

[0098] The insulating glass 11 proposed in this solution makes full use of the principle that the Low-E film reduces heat radiation and the aerogel film 112 reduces heat conduction, which significantly improves the thermal insulation effect of the glass. Compared with the hollow glass 1', this solution can also achieve a good thermal insulation effect when the insulating glass 11 is thinner; compared with ordinary Low-E glass 2', this solution greatly improves the thermal insulation effect of the glass due to the presence of the aerogel film 112.

[0099] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0100] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0101] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat-insulating glass, characterized in that: include: Glass body; an aerogel film, disposed on a first side of the glass body; At least two layers of infrared light reflecting films are arranged on the first side or the second side of the glass body; The first side and the second side are two opposite sides of the glass body.

2. The heat-insulating glass according to claim 1, characterized in that: The infrared light reflecting film is disposed on the first side of the glass body, and the infrared light reflecting film is disposed between the glass body and the aerogel film.

3. The heat-insulating glass according to claim 1, characterized in that: The infrared light reflecting film is arranged on the second side of the glass body, and the heat-insulating glass further comprises: An anti-oxidation film is arranged on a side of the infrared light reflecting film away from the glass body.

4. The heat-insulating glass according to claim 3, characterized in that: The anti-oxidation film includes one of the following or a combination thereof: an aluminum oxide film, a polyacrylic acid film, a polyether ester film and a silicone rubber film.

5. The heat-insulating glass according to claim 1, characterized in that: The infrared light reflecting film includes one of the following or a combination thereof: a silver film, a copper film and a tin film.

6. The heat-insulating glass according to any one of claims 1 to 5, characterized in that: The thickness of the infrared light reflecting film is less than or equal to 20 nm.

7. The heat-insulating glass according to any one of claims 1 to 5, characterized in that: The thickness of the aerogel film is greater than or equal to 2 mm and less than or equal to 4 mm.

8. The heat-insulating glass according to any one of claims 1 to 5, characterized in that: The aerogel membrane comprises a porous structure, wherein the pore size of the porous structure is greater than or equal to 20 nm and less than or equal to 50 nm; and / or The aerogel film comprises one of the following or a combination thereof: a silicon aerogel film, a carbon aerogel film and a metal oxide aerogel film; and / or The insulating glass includes single-layer insulating glass, double-layer insulating glass or multi-layer insulating glass.

9. A double-layer glass, characterized in that: The double-glazed glass comprises: First glass layer; A second glass layer, disposed on one side of the first glass layer; an aerogel film disposed between the first glass layer and the second glass layer; At least two layers of infrared light reflecting films are arranged on a side of the first glass layer or the second glass layer away from the aerogel film.

10. A household appliance, characterized in that: include: The insulating glass according to any one of claims 1 to 8; or Double glazing as claimed in claim 9.

Images