Side window glass and vehicles

Abstract

This application relates to a side window glass and a vehicle. By setting a heat insulation layer on the glass substrate, the heat insulation layer filters out infrared light from the ambient light incident into the vehicle, thereby reducing solar radiation heat input and optimizing the thermal environment inside the vehicle. Furthermore, by setting a transparent conductive coating at least in the rearview mirror observation area on the glass substrate, the transparent conductive coating heats the rearview mirror observation area in cold or high humidity environments, performing defogging and defrosting, ensuring a clear field of vision in the rearview mirror observation area, maintaining driving safety in rain, fog, frost, and snow. Moreover, the partial arrangement of the transparent conductive coating allows for rapid heating of the rearview mirror observation area, saving heating materials, reducing costs, and lowering energy consumption compared to full-area heating.

Description

Technical Field

[0001] This invention relates to the field of vehicle side window glass technology, and in particular to a side window glass and a vehicle. Background Technology

[0002] For vehicles and other means of transportation, driving safety is extremely important. Ensuring a clear view through the vehicle's windows is an important means of providing safe driving. In addition, the demand for dimming of vehicle windows is also increasing. By adding a heat insulation layer, harmful light entering the vehicle can be reduced, protecting items inside the vehicle and the skin of passengers from harm.

[0003] Traditional solutions that provide clear visibility and dimming capabilities for vehicle windows often suffer from high energy consumption and material waste. Summary of the Invention

[0004] Therefore, it is necessary to provide a low-energy-consumption, low-cost side window glass and transportation vehicle.

[0005] In a first aspect, a side window glass is provided for use in vehicles, the side window glass comprising:

[0006] Glass substrate;

[0007] A transparent conductive coating is provided at least in the rearview mirror observation area on the glass substrate;

[0008] The heat insulation layer is set on the glass substrate.

[0009] The aforementioned side window glass incorporates a heat-insulating layer on the glass substrate. This layer filters out infrared light from ambient light entering the vehicle, reducing solar radiation heat input and optimizing the interior thermal environment. Furthermore, by applying a transparent conductive coating to at least the rearview mirror viewing area on the glass substrate, the coating heats the area in cold or high-humidity environments, defogging and defrosting to ensure a clear view. This allows drivers to see the image in the rearview mirror, enhancing driving safety in rain, fog, frost, and snow. The localized application of the transparent conductive coating also enables rapid heating of the rearview mirror viewing area, saving heating materials, reducing costs, and lowering energy consumption compared to full-area heating.

[0010] In one exemplary embodiment, the projection of the heat insulation layer onto the glass substrate does not overlap with the projection of the transparent conductive coating onto the glass substrate.

[0011] The projection of the heat insulation layer on the glass substrate does not overlap with the projection of the transparent conductive coating on the glass substrate. The heat insulation effect and the heating defrosting and defogging functions can be achieved relatively independently without affecting each other, which helps to reduce the design and process difficulty of heat insulation and heating design.

[0012] In an exemplary embodiment, the glass substrate includes a first glass plate, an intermediate layer, and a second glass plate stacked together. The first glass plate is disposed on the side closer to the ambient light outside the vehicle than the second glass plate. The first glass plate has a first surface closer to the ambient light and a second surface farther from the ambient light outside the vehicle, and the second glass plate has a third surface closer to the first glass plate and a fourth surface farther from the first glass plate.

[0013] A transparent conductive coating is applied to the second side of the first glass plate, or the third side of the second glass plate.

[0014] In one exemplary embodiment, the side window glass includes a first glass panel, an intermediate layer, and a second glass panel stacked sequentially, wherein the first glass panel is disposed on the side closer to the external ambient light than the second glass panel.

[0015] A transparent conductive coating is applied to the intermediate layer.

[0016] In an exemplary embodiment, the intermediate layer includes a first sub-layer, a second sub-layer, and a third sub-layer stacked sequentially. The first sub-layer is disposed close to the first glass plate, the third sub-layer is disposed close to the second glass plate, and a transparent conductive coating is disposed on the second sub-layer.

[0017] In one exemplary embodiment, the sheet resistance of the transparent conductive coating is less than or equal to 20 Ω / sq; and / or, the visible light transmittance of the transparent conductive coating is greater than or equal to 70%.

[0018] In one exemplary embodiment, the infrared transmittance of the heat insulation layer is less than or equal to 20%.

[0019] In one exemplary embodiment, the heating power density of the rearview mirror observation area on the side window glass ranges from 300 to 1500 W / m. 2 Preferably, the heating power density of the rearview mirror observation area on the side window glass ranges from 400-1300 W / m². 2 .

[0020] In an exemplary embodiment, the glass substrate includes a first glass plate, an intermediate layer, and a second glass plate stacked together. The first glass plate is disposed on the side closer to the ambient light outside the vehicle than the second glass plate. The first glass plate has a first surface closer to the ambient light outside the vehicle and a second surface farther from the ambient light outside the vehicle, and the second glass plate has a third surface closer to the first glass plate and a fourth surface farther from the first glass plate.

[0021] The heat insulation layer is located on the second side of the first glass plate, or the third side of the second glass plate, or the fourth side of the second glass plate.

[0022] In an exemplary embodiment, when the heat insulation layer is disposed on the second side of the first glass plate, or the third side of the second glass plate, the heat insulation layer includes at least one of an infrared absorbing coating, a silver-based nanofilm layer, a metal oxide nanofilm layer, and an infrared blocking micron coating.

[0023] In one exemplary embodiment, the infrared absorbing coating includes infrared absorbing nanoparticles, the material of which includes at least one selected from indium tin oxide, tungsten trioxide, cesium tungsten bronze, antimony tin oxide, lanthanum hexaboride, and doped vanadium dioxide.

[0024] In an exemplary embodiment, when the heat insulation layer is disposed on the fourth side of the second glass plate, the heat insulation layer includes at least one of an infrared absorbing coating and a fluorine-doped tin oxide nanofilm layer.

[0025] In one exemplary embodiment, the side window glass further includes:

[0026] The patch structure is set on the rearview mirror observation area on the glass substrate, and the patch structure is set on the side of the glass substrate away from the ambient light outside the vehicle.

[0027] A transparent conductive coating is applied to the patch structure.

[0028] In one exemplary embodiment, the side window glass further includes:

[0029] The edge sealing structure is set on both sides of the patch structure in the direction of lifting and lowering of the window glass. The thickness of the edge sealing structure gradually decreases from the near end to the far end where it connects with the patch structure.

[0030] In one exemplary embodiment, the patch structure includes a stacked transparent patch and an adhesive layer, wherein the transparent patch is bonded to the rearview mirror viewing area of ​​the glass substrate by the adhesive layer; a transparent conductive coating is disposed on the transparent patch on the side near the adhesive layer.

[0031] In one exemplary embodiment, the transparent conductive coating includes at least one of a silver-based nanofilm, a metal oxide nanofilm, a carbon nanotube conductive coating, a graphene conductive coating, a poly(3,4-ethylenedioxythiophene) conductive coating, and a two-dimensional titanium carbide conductive coating.

[0032] Secondly, embodiments of this application provide a vehicle, including a vehicle body and the aforementioned side window glass, the side window glass being installed in the side window mounting position of the vehicle body. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A partial structural schematic diagram of an application object of a side window glass according to one or more embodiments;

[0035] Figure 2 One of the structural schematic diagrams of the side window glass in one or more embodiments;

[0036] Figure 3 A second schematic diagram of the structure of the side window glass in one or more embodiments;

[0037] Figure 4 Third schematic diagram of the side window glass in one or more embodiments;

[0038] Figure 5 Fourth schematic diagram of the side window glass in one or more embodiments;

[0039] Figure 6 Fifth schematic diagram of the side window glass in one or more embodiments;

[0040] Figure 7 A schematic diagram of the structure of the intermediate layer and transparent conductive coating of the side window glass in one or more embodiments;

[0041] Figure 8 This is the sixth schematic diagram of the structure of the side window glass in one or more embodiments. Detailed Implementation

[0042] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0044] Traditional automotive windows utilize heating elements to heat the glass in cold or high-humidity environments, addressing the problem of fogging and frost. However, this all-area heating method results in ineffective heat loss in unobserved areas, and the large surface area of ​​the window means heat conduction is time-consuming and cannot meet the need for rapid, localized heating. Furthermore, the overall coverage of the heating element increases the consumption of conductive materials, raising the cost of the window glass.

[0045] Furthermore, with the automotive industry's increasing demands for optical protection performance, especially the special needs of electric vehicles in terms of thermal management, modern car side window glass needs to simultaneously achieve heat insulation and light-diffusing functions while retaining the heating function.

[0046] In view of this, embodiments of this application provide a side window glass that can be applied to, for example... Figure 1 In the vehicle shown, when the side window 100 is closed, the driver can observe the image in the rearview mirror 200 through the rearview mirror observation area C of the side window 100 to observe the situation of vehicles approaching from behind and ensure driving safety.

[0047] In one exemplary embodiment, such as Figure 2 As shown, a side window glass 100 is provided for use in vehicles. The side window glass 100 includes a glass substrate 10, a transparent conductive coating 20, and a heat insulation layer 30. The transparent conductive coating 20 is at least disposed on the rearview mirror observation area C on the glass substrate 10, and the heat insulation layer 30 is disposed on the glass substrate 10.

[0048] The glass substrate 10 can be as follows: Figure 2 The single-layer or multi-layer structure shown. For example, such as Figures 3-4 As shown, the glass substrate 10 can be a laminated glass comprising a first glass plate 11, an intermediate layer 40, and a second glass plate 12. The first glass plate 11 and the second glass plate 12 can be independent structures bonded together by the intermediate layer 40, or they can be an integral structure with a hollowed-out interlayer in the middle. The rearview mirror observation area C on the glass substrate 10, as described above, refers to the area on the glass substrate 10 where the reflected light from the rearview mirror hits the driver's eye when the side window glass 100 is closed. The heat insulation layer 30 is a film layer that can block the transfer of heat from external infrared rays, ultraviolet rays, etc., to reduce the negative impact of infrared radiation on the interior temperature of the vehicle.

[0049] Specifically, by setting a heat insulation layer 30 on the glass substrate 10, the heat insulation layer 30 blocks the transfer of heat from the outside, such as infrared and ultraviolet rays, reducing the amount of heat entering the vehicle. This improves passenger comfort and reduces the load on the vehicle's air conditioning system, thus achieving energy savings. Furthermore, by setting a transparent conductive coating 20 at least in the rearview mirror observation area C on the glass substrate 10, the transparent conductive coating 20 heats the rearview mirror observation area C in cold or high-humidity environments, defogging and defrosting it, ensuring a clear field of vision in the rearview mirror observation area C. This allows the driver to view the image in the rearview mirror through the observation area C, thereby maintaining driving safety in rainy, foggy, frosty, and snowy weather.

[0050] In an optional embodiment, the transparent conductive coating 20 is at least disposed on the rearview mirror observation area C on the glass substrate 10, but does not cover the entire area of ​​the glass substrate 10. This partial arrangement of the transparent conductive coating 20 enables rapid heating of the rearview mirror observation area C, saving heating materials, reducing costs, and reducing energy consumption compared to full-area heating.

[0051] In an exemplary embodiment, the projection of the heat insulation layer 30 onto the glass substrate 10 does not overlap with the projection of the transparent conductive coating 20 onto the glass substrate 10.

[0052] The projection of the heat insulation layer 30 onto the glass substrate 10 does not overlap with the projection of the transparent conductive coating 20 onto the glass substrate 10. The heat insulation effect and the heating, defrosting, and defogging functions can be achieved relatively independently without affecting each other, achieving a balance between clear visibility and heat insulation. Specifically:

[0053] When the projections of the heat insulation layer 30 and the transparent conductive coating 20 on the glass substrate 10 do not overlap, the transparent conductive coating 20 can avoid needing to pass through the heat insulation layer 30 to conduct heat to the glass surface, thus shortening the heat transfer path. This facilitates the rapid transfer of heat from the transparent conductive coating 20 to the glass surface of the rearview mirror observation area C after it is energized, thereby achieving rapid defogging and defrosting.

[0054] Furthermore, the transparent conductive coating 20 experiences a localized temperature increase when heated. Its non-overlapping design with the heat insulation layer 30 prevents high temperatures from accelerating the aging of the insulation material, thereby inhibiting performance degradation of the heat insulation layer 30 and ensuring its performance stability and service life. The heat insulation layer 30 is positioned away from the rearview mirror observation area C, avoiding any negative impact on the transmittance of the observation area C, such as causing a darker field of vision. Based on this, it ensures that the side window glass 100 provides a clear rearview mirror view even at night or in low-light environments such as tunnels, improving driving safety.

[0055] In some material selections, the transparent conductive coating 20 and the heat insulation layer 30 may undergo a chemical reaction. By distributing the two in a staggered manner on the glass substrate 10, the requirements for material selection design can be reduced, design costs can be reduced, and design efficiency can be improved.

[0056] Furthermore, the projection of the heat insulation layer 30 onto the glass substrate 10 does not overlap with the projection of the transparent conductive coating 20 onto the glass substrate 10, which facilitates the co-laying of the transparent conductive coating 20 and the heat insulation layer 30 (e.g., Figure 2 and Figure 5 and Figure 6 As shown), thereby reducing the overall thickness of the side window glass 100.

[0057] In one exemplary embodiment, such as Figures 3-4 As shown, the glass substrate 10 includes a first glass plate 11, an intermediate layer 40, and a second glass plate 12 stacked together. The first glass plate 11 is disposed on the side closer to the ambient light outside the vehicle than the second glass plate 12. The first glass plate 11 has a first surface M1 on the side closer to the ambient light outside the vehicle and a second surface M2 on the side farther away from the ambient light outside the vehicle. The second glass plate 12 has a third surface M3 on the side closer to the first glass plate 11 and a fourth surface M4 on the side farther away from the first glass plate 11.

[0058] Ambient light from outside the vehicle enters from the first surface M1 of the first glass panel 11, exits from the second surface M2 of the first glass panel 11, passes through the intermediate layer 40, and is projected onto the third surface M3 of the second glass panel 12. It then enters the second glass panel 12 from the third surface M3 and exits from the fourth surface M4 of the second glass panel 12, propagating into the passenger compartment. For the laminated glass structure, an intermediate layer 40 can be provided between the first glass panel 11 and the second glass panel 12. The intermediate layer 40 serves to bond the first glass panel 11 and the second glass panel 12. The intermediate layer 40 can also be a functional layer that performs other functions. In an exemplary embodiment, the intermediate layer 40 provides UV protection to prevent aging of objects inside the vehicle due to UV radiation and to prevent UV damage to the skin of passengers, thereby improving passenger comfort.

[0059] In an exemplary embodiment, a transparent conductive coating 20 is disposed on the second surface M2 of the first glass plate 11 (e.g., ...). Figure 3 (as shown), or, the third surface M3 of the second glass plate 12 (as shown). Figure 4(As shown). In both configurations, the transparent conductive coating 20 is not located on the outer surface of the glass (i.e., not on the first surface M1 of the first glass plate 11 or the fourth surface M4 of the second glass plate 12), but is protected by the first glass plate 11 and the second glass plate 12. During the window raising and lowering process, it can prevent mechanical damage such as scratches from the body sheet metal or edge sealing strips to the transparent conductive coating 20, and can also prevent damage from external forces and corrosion from moisture in the environment, thereby ensuring the performance reliability and service life of the transparent conductive coating 20. The transparent conductive coating 20 can be deposited or coated onto the second surface M2 of the first glass plate 11 or the third surface M3 of the second glass plate 12.

[0060] In an exemplary embodiment, when the transparent conductive coating 20 is disposed on the second surface M2 of the first glass plate 11 or the third surface M3 of the second glass plate 12, the material of the transparent conductive coating 20 may be selected from at least one of carbon nanotubes, graphene, poly(3,4-ethylenedioxythiophene) and two-dimensional titanium carbide.

[0061] The side window glass 100 undergoes slight deformation due to vibration and temperature changes during driving. The flexible tubular network of carbon nanotubes (CNTs) can adaptively adjust to this deformation, preventing stress-induced breakage and ensuring the stability of the heating, defogging, and defrosting functions during operation. Furthermore, carbon nanotubes are resistant to long-term UV exposure and acid / alkali corrosion from rainwater without degradation, resulting in a long service life and reducing the frequency and cost of maintenance and replacement of the side window glass 100. Moreover, carbon nanotubes can be prepared using a solution dispersion-spraying / coating process, requiring no vacuum environment and using minimal material, leading to low production costs.

[0062] Optionally, single-walled carbon nanotubes can be selected. Single-walled CNTs have a small diameter and when evenly dispersed, they do not cause strong scattering of visible light. They have high transmittance and are neutrally transparent, which helps to ensure a clear field of vision while achieving the heating, defrosting, and defogging functions of the rearview mirror observation area C, thereby improving visual comfort and driving safety.

[0063] When the transparent conductive coating 20 is made of graphene, the high transmittance of graphene can provide a high-intensity field of view for the rearview mirror observation area C. Furthermore, the high electron mobility of graphene can improve the speed of defogging and defrosting. When graphene is coated on the second surface M2 of the first glass plate 11, or the third surface M3 of the second glass plate 12, it can adhere tightly to the glass surface. Even if the glass is subjected to impact and undergoes slight bending, the transparent conductive coating 20 is not easily detached, thereby improving the functional stability and reliability of the transparent conductive coating 20.

[0064] When the transparent conductive coating 20 is made of PEDOT (poly(3,4-ethylenedioxythiophene)), the high molecular backbone of PEDOT has good elasticity and can withstand high-frequency vibration and drastic temperature changes (-30℃ to 70℃) in automotive environments, preventing cracking and peeling of the transparent conductive coating 20. Furthermore, PEDOT can be formulated into a water-soluble slurry and applied to the second surface M2 of the first glass plate 11 or the third surface M3 of the second glass plate 12 via spin coating or roller coating processes. This eliminates the need for high-temperature baking, resulting in low processing damage to the glass and facilitating ultra-thin glass plate designs, thereby reducing the overall thickness of the side window glass 100. Additionally, PEDOT has a low resistance change rate with temperature, ensuring heating performance even at low temperatures, thus guaranteeing the reliability of defrosting of the side window glass 100 in low-temperature environments.

[0065] When the transparent conductive coating 20 is made of two-dimensional titanium carbide (MXene), the conductivity of MXene is close to that of metal, resulting in extremely low energy loss when heated. Therefore, while ensuring the 100% defogging effect of the side window glass, low power consumption can be achieved. When applied to new energy vehicles, low power consumption helps to ensure the vehicle's range. In addition, the hydroxyl (-OH) and fluorine (-F) functional groups on the surface of MXene can form a dense protective layer that is resistant to high and low temperatures, as well as strong ultraviolet radiation and salt spray corrosion. This ensures the heating defogging / defrosting effect of the transparent conductive coating 20 in various automotive environments, including rainy, high-temperature, and low-temperature conditions.

[0066] In practical use, the transparent conductive coating 20 material of the side window glass 100 can be selected from at least one of carbon nanotubes, graphene, poly(3,4-ethylenedioxythiophene) and two-dimensional titanium carbide, based on the above-described beneficial effects, to achieve the transparent conductive coating 20.

[0067] In an exemplary embodiment, when the transparent conductive coating 20 is disposed on the second surface M2 of the first glass plate 11, or the third surface M3 of the second glass plate 12, the transparent conductive coating 20 excludes the use of silver-based conductive materials and conventional transparent conductive oxide (TCO) films (such as ITO (Indium Tin Oxide), FTO (Fluorine-doped Tin Oxide), AZO (Aluminum-doped Zinc Oxide)). Silver-based conductive materials and conventional transparent conductive oxide (TCO) films require the formation of a continuous conductive layer through full-surface magnetron sputtering, followed by large-area laser film removal post-processing. This process leads to the ineffective consumption of the target material and a significant increase in manufacturing costs. In the side window glass 100 provided in this application embodiment, when the transparent conductive coating 20 is disposed on the second surface M2 of the first glass plate 11 or the third surface M3 of the second glass plate 12, the transparent conductive coating 20 is prepared by using at least one of carbon nanotubes, graphene, poly(3,4-ethylenedioxythiophene) and two-dimensional titanium carbide, which can avoid the ineffective consumption of target material and thus control the production cost of the side window glass 100.

[0068] In one embodiment, such as Figures 3-4 As shown, when the transparent conductive coating 20 is disposed on the second surface M2 of the first glass plate 11, or when the transparent conductive coating 20 is disposed on the third surface M3 of the second glass plate 12, the heat insulation layer 30 is disposed on the fourth surface M4 of the second glass plate 12. In this layer structure, the projections of the transparent conductive coating 20 onto the glass substrate 10 and the projections of the heat insulation layer 30 onto the glass substrate 10 may overlap or not overlap (e.g., ...). Figures 3-4 (As shown). When the heat insulation layer 30 is placed on the fourth surface M4 of the second glass panel 12, on the one hand, in a low-temperature environment, the heat insulation layer 30 can reflect the infrared heat radiation emitted by objects inside the vehicle, reduce heat loss through the glass, and improve the heat preservation effect inside the vehicle; on the other hand, in a high-temperature environment, the heat insulation layer 30 can block the heat conducted into the vehicle from outside through the glass, while not affecting the entry of visible light, thus avoiding excessively high temperatures inside the vehicle while meeting the lighting requirements.

[0069] The environment inside the vehicle is more stable than the environment outside the vehicle, which can prevent the heat insulation layer 30 from being directly exposed to wind, rain, dust, ultraviolet rays, or physical friction such as scratches, thus reducing the risk of oxidation, peeling or scratches of the heat insulation layer 30 and extending its service life.

[0070] The heat insulation layer 30, which is set on the fourth side M4, works in conjunction with the transparent conductive coating 20 to achieve both defrosting and defogging effects and heat insulation effects.

[0071] It should be noted that when the transparent conductive coating 20 is disposed on the second surface M2 of the first glass plate 11, or on the third surface M3 of the second glass plate 12, the intermediate layer 40 needs to cover the glass plate and the transparent conductive coating 20 to bond the first glass plate 11, the transparent conductive coating 20 and the second glass plate 12 to form a laminated glass structure.

[0072] In one embodiment, when the transparent conductive coating 20 is disposed on the third surface M3 of the second glass plate 12, the heat insulation layer 30 may also be disposed on the first surface M1 or the second surface M2 of the first glass plate 11.

[0073] In one embodiment, both the heat insulation layer 30 and the transparent conductive coating 20 are disposed on the second surface M2 of the first glass plate 11 (e.g., Figure 5 As shown in the diagram, or on the third surface M3 of the second glass plate 12, the projections of the transparent conductive coating 20 and the heat insulation layer 30 along the thickness direction of the side window glass 100 do not overlap (i.e., the projections of the transparent conductive coating 20 on the glass substrate 10 and the heat insulation layer 30 on the glass substrate 10 do not overlap). By setting the transparent conductive coating 20 and the heat insulation layer 30 in the same layer, the overall thickness of the side window glass 100 can be effectively reduced.

[0074] In one exemplary embodiment, such as Figure 6 As shown, the side window glass 100 includes a first glass plate 11, an intermediate layer 40, and a second glass plate 12 stacked sequentially. The first glass plate 11 is positioned closer to the ambient light outside the vehicle than the second glass plate 12. For a laminated glass structure, an intermediate layer 40 can be provided between the first glass plate 11 and the second glass plate 12. The intermediate layer 40 can serve to bond the first glass plate 11 and the second glass plate 12, or it can be a functional layer that performs other functions. A transparent conductive coating 20 is disposed within the intermediate layer 40. The transparent conductive coating 20 may be disposed in the intermediate layer 40 in the following ways: the conductive material of the transparent conductive coating 20 is incorporated into the intermediate layer 40; or the transparent conductive coating 20 is disposed in one layer of the intermediate layer 40 (e.g.,...). Figure 7 (As shown). At this time, both the first glass plate 11 and the second glass plate 12 can protect the transparent conductive coating 20 to ensure the functional reliability of the transparent conductive coating 20.

[0075] The transparent conductive coating 20 can be disposed in one of the layers of the intermediate layer 40 in the following ways: Figure 7As shown, the intermediate layer 40 includes a first sub-layer 41, a second sub-layer 42, and a third sub-layer 43 stacked sequentially. The first sub-layer 41 is disposed near the first glass plate 11, and the third sub-layer 43 is disposed near the second glass plate 12. The transparent conductive coating 20 is disposed on the second sub-layer 42. When the transparent conductive coating 20 is disposed on the second sub-layer 42, the heat generated when the transparent conductive coating 20 is energized can be transferred synchronously to both sides. One side passes through the first sub-layer 41 to the first glass plate 11 (outer glass), and the other side passes through the third sub-layer 43 to the second glass plate 12 (inner glass). The temperatures of the inner and outer glass plates rise synchronously, achieving simultaneous defogging / defrosting from both inside and outside, improving efficiency, and effectively avoiding thermal stress damage to the glass. In addition to the protection of the glass plates, the first sub-layer 41 and the third sub-layer 43 provide secondary protection for the transparent conductive coating 20, further protecting the transparent conductive coating 20 from external force damage or external moisture erosion, thereby ensuring the reliability of the transparent conductive coating 20.

[0076] In an exemplary embodiment, the first sub-layer 41 and the third sub-layer 43 are PVB layers, the second sub-layer 42 is a polyester layer, and the transparent conductive coating 20 is disposed on the polyester layer.

[0077] In this layer structure, a transparent conductive coating 20 can be pre-formed on the polyester layer (PET layer), and then the polyester layer and PVB layer can be composited to form an intermediate layer 40. Utilizing the high viscosity of the PVB layer, it is bonded to the first glass plate 11 and the second glass plate 12. This reduces production difficulty, improves coating position accuracy, avoids affecting the light transmittance of non-observation areas, and simultaneously increases mass production efficiency.

[0078] In one embodiment, the PVB in the intermediate layer 40 can block ultraviolet rays, effectively inhibiting the photoaging phenomenon of interior materials caused by ultraviolet rays, thereby simultaneously improving the thermal comfort of drivers and passengers and the durability of interior materials such as car seats.

[0079] In one embodiment, when the transparent conductive coating 20 is located in the intermediate layer 40, the transparent conductive coating 20 may be selected from at least one of the following: single silver nanofilm, double silver nanofilm, triple silver nanofilm, quadruple silver nanofilm, ITO nanofilm, fluorine-doped tin oxide (FTO) nanofilm, AZO nanofilm, carbon nanotube conductive coating, graphene conductive coating, poly(3,4-ethylenedioxythiophene) conductive coating, and two-dimensional titanium carbide conductive coating.

[0080] The beneficial effects of carbon nanotube conductive coating, graphene conductive coating, poly(3,4-ethylenedioxythiophene) conductive coating and two-dimensional titanium carbide conductive coating when used as transparent conductive coating 20 can be specifically referred to in the above embodiments, and will not be repeated here.

[0081] When the transparent conductive coating 20 includes silver-based nanofilm layers such as single silver nanofilm layers, double silver nanofilm layers, triple silver nanofilm layers, and quadruple silver nanofilm layers, the silver-based nanofilm layers combine low resistance and high infrared reflectivity, thus meeting both defogging and defrosting functions and sun protection requirements. The more layers of silver-based nanofilm layers there are, the stronger the heat insulation, but the complexity of the process and the cost increase simultaneously. The specific number of layers can be determined based on the design requirements of the side window glass 100.

[0082] When the transparent conductive coating 20 includes metal oxide nanofilms such as ITO, FTO or AZO, based on the advantages of the metal oxide nanofilms such as high weather resistance (antioxidation, acid and alkali resistance), high light transmittance and no metallic reflective color, it can provide stable conductive heating function in vehicle scenarios, as well as high light transmittance, providing drivers with a high-transmittance rearview mirror observation field of view.

[0083] In one exemplary embodiment, the sheet resistance of the transparent conductive coating 20 is less than or equal to 20 Ω / sq; and / or, the visible light transmittance of the transparent conductive coating 20 is greater than or equal to 70%.

[0084] When energized, the transparent conductive coating 20 generates Joule heat, heating the glass surface above the dew point, thereby eliminating fog / frost. The lower the sheet resistance, the higher the heat conversion efficiency when current passes through. In the side window glass 100 provided in this application embodiment, the sheet resistance of the transparent conductive coating 20 is less than or equal to 20Ω / sq. Under the same voltage, ensuring sufficient current (Joule heat Q=I²Rt, where I is current, R is sheet resistance, and t is time), the glass plate of the rearview mirror observation area C can be heated to above the dew point in a short time, quickly eliminating fog and frost, ensuring that the driver has a clear view in a timely manner. Moreover, the sheet resistance of the transparent conductive coating 20 is less than or equal to 20Ω / sq, resulting in low energy consumption in the process of eliminating fog and frost.

[0085] The visible light transmittance of the transparent conductive coating 20 is greater than or equal to 70%, which allows sufficient natural light to enter the vehicle, ensuring a bright and clear field of vision in the rearview mirror observation area C, conforming to human visual habits, and reducing fatigue during long-distance driving.

[0086] When the sheet resistance of the transparent conductive coating 20 is less than or equal to 20Ω / sq and the visible light transmittance of the transparent conductive coating 20 is greater than or equal to 70%, the transparent conductive coating 20 can achieve both rapid defogging and low power consumption.

[0087] In one exemplary embodiment, such as Figures 3-6As shown, the glass substrate 10 includes a first glass plate 11, an intermediate layer 40, and a second glass plate 12 stacked together. The first glass plate 11 is disposed on the side closer to the ambient light outside the vehicle than the second glass plate 12. The first glass plate 11 has a first surface M1 close to the ambient light outside the vehicle and a second surface M2 away from the ambient light outside the vehicle. The second glass plate 12 has a third surface M3 close to the first glass plate 11 and a fourth surface M4 away from the first glass plate 11. The heat insulation layer 30 is disposed on the second surface M2 of the first glass plate 11, or the third surface M3 of the second glass plate 12, or the fourth surface M4 of the second glass plate 12.

[0088] When the heat insulation layer 30 is disposed on the second surface M2 of the first glass panel 11, the first glass panel 11 protects the heat insulation layer 30 from wind, sand, and rain erosion outside the vehicle, as well as external scratches. This prevents the heat insulation layer 30 from aging, peeling, or performance degradation due to environmental erosion, significantly extending its service life. Furthermore, the heat transfer path outside the vehicle is: outside the vehicle, first glass panel 11, heat insulation layer 30, second glass panel 12, and inside the vehicle. The heat insulation layer 30, disposed on the second surface M2 of the first glass panel 11, can directly intercept the heat conducted through the first glass panel 11, reducing the total amount of heat entering the gap between the first glass panel 11 and the second glass panel 12, thus reducing subsequent heat transfer to the vehicle interior from the source.

[0089] Optionally, the first surface M1 of the first glass plate 11 is coated with an anti-glare, anti-scratch, or hydrophobic coating, and the heat insulation layer 30 is disposed on the second surface M2 of the first glass plate 11. This avoids conflict with these outer functional coatings and does not affect the glass transmittance.

[0090] When the heat insulation layer 30 is disposed on the third side M3 of the second glass plate 12, the third side M3 of the second glass plate 12 faces the first glass plate 11, avoiding physical / chemical damage caused by friction between people inside the vehicle, spilled beverages, or dust accumulation, and protecting the service life and functional reliability of the heat insulation layer 30.

[0091] Optionally, a hollow layer may be formed between the first glass plate 11 and the second glass plate 12, which may be filled with dry air or inert gas. The insulation layer 30 and the hollow layer can form a double insulation barrier. The hollow layer blocks convective heat transfer, while the insulation layer 30 blocks radiative and conductive heat transfer, which can significantly reduce the overall heat transfer coefficient and improve the insulation effect.

[0092] When the heat insulation layer 30 is located on the fourth surface M4 of the second glass panel 12, after heat is transferred to the second glass panel 12, the heat insulation layer 30 can directly intercept the heat transfer from the second glass panel 122 to the vehicle interior, and suppress the radiant heat from the second glass panel 12 to the vehicle interior. In high-temperature scenarios, when a user touches the side window glass 100 inside the vehicle, the glass surface temperature is lower, and there is no obvious burning sensation. In low-temperature scenarios, the heat insulation layer 30 can also reduce the loss of heat from the vehicle interior to the outside through the second glass panel 12 and the first glass panel 11, thereby reducing the energy consumption of air conditioning heating.

[0093] Furthermore, by placing the heat insulation layer 30 on the fourth surface M4 of the second glass panel 12, the aging rate of the heat insulation layer 30 can be reduced due to the stable environment inside the vehicle. Moreover, when the heat insulation layer 30 suffers localized damage, only the heat insulation layer 30 inside the vehicle needs to be repaired, without disassembling the glass structure, resulting in low maintenance costs.

[0094] In an exemplary embodiment, when the heat insulation layer 30 is disposed on the second surface M2 of the first glass plate 11 or the third surface M3 of the second glass plate 12, the heat insulation layer 30 includes at least one of the following: an infrared absorbing coating, a silver-based nanofilm layer (such as a single silver nanofilm layer, a double silver nanofilm layer, a triple silver nanofilm layer, or a quadruple silver nanofilm layer), a metal nanofilm layer (such as an ITO nanofilm layer or a fluorine-doped tin oxide nanofilm layer), and an infrared blocking micron coating.

[0095] The infrared absorbing coating features high optical transparency and no visual interference. It provides excellent isolation against infrared light while allowing visible light to pass through, with a visible light transmittance of ≥75%, meeting the transmittance requirements of the side window glass 100. Furthermore, the infrared absorbing coating can be prepared using low-cost processes such as roller coating and spraying, without requiring complex multilayer film structure design, which helps reduce the production cost of the side window glass 100.

[0096] Silver-based nanofilms offer high thermal insulation efficiency, making them suitable for high-temperature environments. The more silver layers there are, the stronger the thermal insulation effect. Through an alternating design of silver layers and dielectric layers, silver-based nanofilms can ensure visible light transmittance while maintaining high infrared reflectivity, meeting the light transmission requirements of side window glass 100. Furthermore, multiple layers of silver film can further optimize the ratio of infrared reflection to visible light transmittance, making them suitable for automotive side window glass 100 with high thermal insulation requirements.

[0097] Metal nanofilms such as ITO nanofilms and fluorine-doped tin oxide nanofilms achieve heat insulation by absorbing near-infrared light through the free electrons of the metal oxides. Their nanoparticle size is much smaller than the wavelength of visible light, resulting in a smooth film surface and low haze, ensuring 100% overall visual clarity of the side window glass.

[0098] The infrared blocking micron coating blocks near-infrared light through the scattering and absorption of micron-sized inorganic particles. It exhibits high mechanical strength, high temperature resistance, and does not crack or delaminate due to temperature changes or ultraviolet radiation, demonstrating high stability. Furthermore, the infrared blocking micron coating is low-cost and can be directly composited with other functional coatings. For example, a composite structure of an infrared blocking micron layer and an ultraviolet absorbing layer (such as the aforementioned intermediate layer 40) can simultaneously block both infrared heat and ultraviolet radiation, achieving multiple functions.

[0099] In one exemplary embodiment, the infrared absorbing coating includes infrared absorbing nanoparticles, the material of which includes at least one selected from indium tin oxide, tungsten trioxide, cesium tungsten bronze, antimony tin oxide, lanthanum hexaboride, and doped vanadium dioxide.

[0100] Indium tin oxide (ITO) has a stable absorption capacity for mid-to-near infrared radiation, while also having high visible light transmittance. This allows it to effectively block infrared heat while ensuring the light transmittance of the side window glass 100, thus not affecting interior lighting. Furthermore, ITO has strong chemical stability, is resistant to acids and alkalis, and is moisture-resistant. When the heat insulation layer 30 is located on the fourth surface M4 of the second glass panel 12, its service life can still be guaranteed.

[0101] The infrared absorption capacity of tungsten trioxide (WO3) can be adjusted, such as enhancing infrared blocking when energized and restoring some light transmission when energized. Therefore, when using tungsten trioxide to prepare the heat insulation layer 30, the infrared absorption capacity of the heat insulation layer 30 can be dynamically adjusted according to the heat insulation and light transmission requirements, adapting to the current needs for heat insulation and light transmission.

[0102] Cesium Tungsten Bronze (Cs x Cesium tungsten bronze (WO3) has a high blocking rate and low transmittance for near-infrared rays, which can minimize the transfer of external heat into the vehicle, providing a comfortable temperature environment inside the vehicle and helping to reduce the energy consumption of the vehicle's air conditioning. In addition, cesium tungsten bronze has strong resistance to ultraviolet aging and high temperature resistance, and its infrared absorption performance decays at a low rate after long-term use, maintaining excellent heat insulation performance even in scenarios where the side window glass is exposed to the outdoors for a long time.

[0103] Antimony tin oxide (ATO) exhibits strong infrared absorption stability and is unaffected by environmental humidity and temperature fluctuations. The performance of the insulation layer 30 is not easily degraded after long-term use, making it suitable for harsh environments such as humid and high-temperature conditions. Furthermore, ATO raw materials are more abundant and have lower manufacturing costs, which helps reduce the production cost of the side window glass 100.

[0104] Lanthanum hexaboride (LaB6) not only absorbs near-infrared rays but also has a certain absorption capacity for mid-infrared rays, which can block heat radiation in more wavelengths and provide a more comprehensive heat insulation effect.

[0105] Doping vanadium dioxide (VO2) with tungsten, molybdenum, titanium, etc., alters the phase transition temperature to room temperature. When the temperature is below the phase transition temperature, indicating a lower external temperature, VO2 exists in a semiconductor state, allowing infrared light to pass through, which helps increase the interior temperature. When the temperature is above the phase transition temperature, indicating an excessively high external temperature, the doped VO2 transforms into a metallic state, reflecting and absorbing infrared light, thus preventing heat transfer to the vehicle interior and avoiding overheating. By using vanadium dioxide to prepare the insulation layer 30, adaptive thermal insulation can be achieved without the need for additional electronic control equipment, reducing costs and energy consumption.

[0106] In an exemplary embodiment, when the heat insulation layer 30 is disposed on the fourth surface M4 of the second glass plate 12, the heat insulation layer 30 includes at least one of an infrared absorbing coating and a fluorine-doped tin oxide nanofilm layer. The infrared absorbing coating and the fluorine-doped tin oxide nanofilm layer have high surface hardness and mechanical strength, which can effectively resist friction with the sealing strip or guide rail during the raising and lowering of the window, thereby protecting the function of the heat insulation layer 30 from damage.

[0107] In one exemplary embodiment, such as Figures 6-7 As shown, the insulation layer 30 can also be disposed within the intermediate layer 40. Specifically, for example, insulation particles can be added to the intermediate layer 40 so that the intermediate layer 40 not only has adhesive properties but also insulation properties (equivalent insulation layer 30); or, the intermediate layer 40 can be a multi-layer structure, in which there is one insulation layer 30.

[0108] In one exemplary embodiment, such as Figure 8 As shown, the side window glass 100 also includes a patch structure 50, which is disposed on the rearview mirror observation area C on the glass substrate 10, and the patch structure 50 is disposed on the side of the glass substrate 10 away from the ambient light outside the vehicle. A transparent conductive coating 20 is disposed on the patch structure 50.

[0109] The transparent conductive coating 20 can be indirectly applied to the glass substrate 10 via a patch structure 50. The patch structure 50 facilitates heat conduction between the transparent conductive coating 20 and the glass substrate 10, enabling defrosting and defogging of the glass. In this method, the patch structure 50 can be fabricated separately, and then bonded to the rearview mirror observation area C on the glass substrate 10. This structure is beneficial for the secondary modification of the side window glass 100 of existing vehicles. Furthermore, the patch structure 50 can be produced independently without altering the existing production line process for the side window glass 100, reducing the overall fabrication complexity of the side window glass 100.

[0110] In one exemplary embodiment, such as Figure 8 As shown, the side window glass 100 also includes an edge sealing structure 60. The edge sealing structure 60 is disposed on both sides of the patch structure 50 in the lifting direction of the side window glass 100, and the thickness of the edge sealing structure 60 gradually decreases from the near end to the far end where it connects with the patch structure 50.

[0111] The far end refers to the end of the edge sealing structure 60 that is furthest from the joint of the patch structure 50. By setting the edge sealing structure 60, the edge sealing structure 60 can eliminate abrupt changes in thickness and disperse the shear stress generated during the raising and lowering of the side window glass 100, thereby preventing the patch structure 50 from peeling off.

[0112] Optionally, the geometry of the edge sealing structure 60 can be a ramp, wedge, or arc.

[0113] In one possible implementation, the edge sealing structure 60 specifically adopts a sloping shape. The thick end of the slope of this edge sealing structure 60 (where it connects with the patch structure 50) is smoothly connected to the side of the patch structure 50 away from the second glass plate 12, and the thin end (the far end of the edge sealing structure 60) is smoothly connected to the fourth surface M4 of the second glass plate 12, with its thickness decreasing sequentially from the thick end to the thin end.

[0114] In one possible implementation, when the edge sealing structure 60 adopts a sloped shape, the slope angle θ of the edge sealing structure 60 is less than or equal to 45° to ensure the dispersion effect of shear stress generated during the lifting and lowering of the side window glass 100. Optionally, the interior of the edge sealing structure 60 may be filled with transparent edge sealing adhesive, which may be selected from one or more of polyurethane sealant, silicone sealant, acrylic sealant, or organosilicone sol.

[0115] In an optional embodiment, the transparent edge-sealing adhesive is a silicone sol. Silicone sol is resistant to UV degradation, high and low temperatures, moisture, and corrosion, protecting the edge-sealing area from erosion and extending the substrate's lifespan. Furthermore, before curing, the silicone sol is in a fluid or semi-fluid state with good flowability, fully filling irregular and narrow gaps. During curing, there is no significant shrinkage, preventing the creation of new gaps and ensuring sealing integrity. The cured edge-sealing structure 60 has extremely high barrier properties against water, moisture, and dust, protecting the functional reliability of the transparent conductive coating 20.

[0116] In one exemplary embodiment, such as Figure 8 As shown, the patch structure 50 includes a stacked transparent patch 52 and an adhesive layer 51. The transparent patch 52 is bonded to the rearview mirror observation area C of the glass substrate 10 via the adhesive layer 51. A transparent conductive coating 20 is disposed on either side of the transparent patch 52. The transparent conductive coating 20 is disposed on the side 521 of the transparent patch 52 closer to the adhesive layer 51, or on the side 522 of the transparent patch 52 away from the adhesive layer 51.

[0117] The transparent patch 52 provides support for the coating of the transparent conductive layer. The transparent patch 52 can be made of plastic (such as resin film or PET) or glass; in an optional embodiment, the transparent patch 52 is made of thin electronic-grade glass. After the transparent conductive layer is applied to the transparent patch 52, it is pressed together with the adhesive layer 51, utilizing the adhesive properties of the adhesive layer to bond it to the rearview mirror observation area C on the glass substrate 10. Optionally, such as... Figure 8 As shown, the patch structure 50 is bonded to the rearview mirror observation area C on the fourth surface M4 of the second glass plate 12 based on the adhesive layer 51.

[0118] In one embodiment, the adhesive layer 51 is made of OCA (Optical Clear Adhesive), which has high transmittance to ensure a clear view of the rearview mirror observation area C. In addition, OCA adhesive has excellent adhesion and peel strength, allowing it to adhere tightly to the glass and ensuring that the patch structure 50 does not detach during the raising and lowering of the side window glass 100.

[0119] In an exemplary embodiment, the transparent conductive coating 20 is disposed on the transparent patch 52 on one side 521 near the adhesive layer 51. When disposed on this side, the transparent patch 52 protects the transparent conductive coating 20 from external friction, thereby improving the reliability of the transparent conductive coating 20.

[0120] In one embodiment, a functional layer (not shown in the figure) may also be provided on the side of the transparent patch 52 away from the adhesive layer 51. The functional layer may include an AF layer (Anti-Fingerprint coating, ensuring the clarity of the rearview mirror observation area C), a hydrophobic coating, an AR layer (Anti-Reflective coating, reducing glare and improving the visual clarity of the rearview mirror observation area C), an oleophobic coating (anti-fingerprint and oil-resistant, ensuring the clarity of the rearview mirror observation area C), an enhanced reflective (ER) coating, an anti-glare (AG) coating, or an oleophobic coating, etc. The functional layer can be selected as needed while ensuring the visual clarity of the rearview mirror observation area C.

[0121] In one exemplary embodiment, the infrared transmittance of the heat insulation layer 30 is less than or equal to 20%.

[0122] Infrared radiation is the main source of heat generated by solar radiation. The side window glass 100 and the heat insulation layer 30 provided in this application embodiment have an infrared transmittance of ≤20%, so most of the heat is blocked outside the vehicle. After the vehicle has been exposed to the sun, the interior temperature will be significantly lower than that of vehicles with ordinary glass. After getting in the car, the air conditioning can also lower the temperature to the user's comfort range more quickly, thereby improving the user's driving experience in hot weather.

[0123] In addition, because the initial temperature inside the car is lower, the air conditioner does not need to operate at high intensity to maintain a comfortable temperature for the user, which can effectively reduce fuel consumption of fuel vehicles or electricity consumption of new energy vehicles, reduce the air conditioning load, and lower energy costs.

[0124] The infrared transmittance of the heat insulation layer 30 is less than or equal to 20%, which helps to reduce the temperature inside the vehicle and prevent the aging, fading or cracking of plastics, leathers, fabrics and other materials inside the vehicle caused by high temperatures, thereby increasing the service life of items inside the vehicle.

[0125] In one test example, the side window glass 100 provided in this application embodiment has a visible light transmittance greater than or equal to 70% and an infrared transmittance less than or equal to 20%, and the side window glass 100 has excellent heat insulation performance.

[0126] In one exemplary embodiment, the heating power density of the rearview mirror observation area C on the side window glass 100 ranges from 300 to 1500 W / m. 2 .

[0127] Heating power density determines the heat generation rate of a heating element per unit area; a heating power density greater than or equal to 300 W / m² is required. 2At a power density of (W / m²), it can quickly provide the heat required to melt frost and evaporate fog for the side window glass 100 in a vehicle-mounted scenario. The heating power density of the rearview mirror observation area C on the side window glass 100 is less than 300W / m². 2 At times, the heat generation rate is too slow, and defrosting and defogging take too long in low-temperature conditions in winter, affecting driving safety.

[0128] The heating power density is 1500W / m 2 Even in extreme conditions such as low temperature and high humidity, the surface temperature of the side window glass can still rapidly rise above 0°C, preventing frost residue or repeated condensation. The heating power density is higher than 1500W / m². 2 At this time, the local temperature of the side window glass 100 will rise sharply, which may cause stress due to thermal expansion and contraction, and cause the glass to crack.

[0129] Therefore, the heating power density of the rearview mirror observation area C on the side window glass 100 provided in this application embodiment ranges from 300-1500W / m. 2 In vehicle applications, it can meet the requirements for rapid defrosting and defogging, ensuring that every part of the rearview mirror observation area C can be defrosted and defogged well without affecting the driver's vision, and can balance defrosting and defogging efficiency with usage risks.

[0130] In one exemplary embodiment, the heating power density of the rearview mirror observation area C on the side window glass 100 ranges from 400 to 1300 W / m². 2 .

[0131] 400W / m 2 Compared to 300W / m 2 The high heating power density allows for a faster temperature increase on the 100mm surface of the side window glass within the same timeframe, while also ensuring effective defrosting even in low-pressure environments at high altitudes. Furthermore, 1300W / m 2 Compared to 1500W / m 2 With a lower coefficient of thermal expansion, glass stress can be effectively reduced to a safe range, increasing safety redundancy. Through testing under different climatic conditions, the side window glass 100 provided in this embodiment is designed to have a heating power density in the rearview mirror observation area C ranging from 400-1300 W / m². 2 It can ensure rapid defrosting and defogging effects in various climatic environments, while also taking into account the structural stability of the side window glass.

[0132] In a test example, the side window glass 100 provided in this application embodiment, when the rearview mirror observation area C is powered on for 5 minutes under the conditions of an ambient temperature of 25°C and a working voltage of 12V, has a maximum temperature of less than or equal to 70°C and a minimum temperature of greater than or equal to 40°C. That is, the side window glass 100 can meet the requirements for rapid defogging in the rearview mirror observation area C.

[0133] In a test case, the side window glass 100 provided in this application embodiment, under the conditions of ambient temperature -20℃, 0.45 mm ice layer covering, and working voltage of 12V, was powered on for 5 minutes, and the defrosting area of ​​the rearview mirror observation area C was greater than or equal to 80%, that is, the side window glass 100 has the performance of rapid defrosting and de-icing for the rearview mirror observation area C.

[0134] To better illustrate the beneficial effects of the side window glass 100 provided in the embodiments of this application, the following example is provided:

[0135] like Figure 5 As shown, the side window glass 100 includes a first glass panel 11 and a heat insulation layer 30 (using Cs). x The optical performance consisted of an infrared absorbing coating prepared with WO3, a transparent conductive coating 20 (CNT), an intermediate layer 40 (using PVB), and a second glass plate 12. The optical performance test results are shown in Table 1.

[0136] Table 1

[0137]

[0138] Table 1 shows the optical performance test results, calculated according to ISO 9050-2003(E) after measuring the transmittance in the wavelength range of 250 nm to 2500 nm using a spectrophotometer (instrument model: Perkin Elmer Lambda 950, USA). Here, Lta represents the transmittance of visible light in the 380 nm-780 nm range, Tuv represents the transmittance of ultraviolet light in the 300 nm-380 nm range, and Tir represents the transmittance of infrared light in the 780 nm-2500 nm range.

[0139] As shown in Table 1, the side window glass 100 provided in this application has excellent infrared and ultraviolet blocking performance.

[0140] After the power supply provides 12V, the heating power density of the rearview mirror observation area C is measured and calculated, and the results are shown in Table 2.

[0141] Table 2

[0142]

[0143] As shown in Table 2, the side window glass 100 in this embodiment can completely defrost the rearview mirror observation area C after 5 minutes. Simultaneously, the highest temperature of the rearview mirror observation area C, measured using an infrared thermometer, is 57.2℃, demonstrating rapid defogging and ensuring safety.

[0144] The side window glass 100 provided in this application embodiment can not only achieve heat insulation and ultraviolet protection functions to improve the thermal comfort of driving and riding, but also achieve local rapid heating function to ensure that the driver can clearly observe the left and right rearview mirrors and improve driving safety.

[0145] The side window glass 100 provided in this application embodiment has a localized heating module constructed in the rearview mirror observation area C of the side window glass 100, which reduces the heating area, helps to reduce the consumption of electric heating energy and conductive materials, and at the same time reduces the complexity of the process.

[0146] In one exemplary embodiment, a vehicle is provided, including a vehicle body and the aforementioned side window glass 100, the side window glass 100 being mounted in a side window mounting position on the vehicle body.

[0147] The vehicle equipped with the aforementioned side window glass 100 can combine a clear rearview mirror view with heat insulation design, and has all the beneficial effects of the aforementioned side window glass 100 embodiments, which will not be elaborated here.

[0148] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A type of side window glass, characterized in that, Applied to vehicles, the side window glass includes: Glass substrate; A transparent conductive coating is provided at least in the rearview mirror observation area on the glass substrate. In cold or high humidity environments, the transparent conductive coating heats the rearview mirror observation area to remove fog and defrost, ensuring a clear field of view in the rearview mirror observation area. A heat insulation layer is disposed on the glass substrate. The heat insulation layer filters out infrared light from the ambient light incident into the vehicle to reduce solar radiation heat input and optimize the thermal environment inside the vehicle.

2. The side window glass according to claim 1, characterized in that, The projection of the heat insulation layer on the glass substrate does not overlap with the projection of the transparent conductive coating on the glass substrate.

3. The side window glass according to claim 1, characterized in that, The glass substrate includes a first glass plate, an intermediate layer, and a second glass plate stacked together. The first glass plate is disposed on the side closer to the ambient light outside the vehicle than the second glass plate. The first glass plate has a first surface closer to the ambient light outside the vehicle and a second surface farther from the ambient light outside the vehicle. The second glass plate has a third surface closer to the first glass plate and a fourth surface farther from the first glass plate. The transparent conductive coating is disposed on the second side of the first glass plate, or on the third side of the second glass plate.

4. The side window glass according to claim 1, characterized in that, The side window glass includes a first glass panel, an intermediate layer, and a second glass panel stacked in sequence, with the first glass panel positioned closer to the ambient light outside the vehicle compared to the second glass panel. The transparent conductive coating is disposed on the intermediate layer.

5. The side window glass according to claim 4, characterized in that, The intermediate layer includes a first sub-layer, a second sub-layer, and a third sub-layer stacked sequentially. The first sub-layer is disposed close to the first glass plate, the third sub-layer is disposed close to the second glass plate, and the transparent conductive coating is disposed on the second sub-layer.

6. The side window glass according to any one of claims 1-5, characterized in that, The sheet resistance of the transparent conductive coating is less than or equal to 20 Ω / sq; and / or the visible light transmittance of the transparent conductive coating is greater than or equal to 70%.

7. The side window glass according to any one of claims 1-5, characterized in that, The infrared transmittance of the heat insulation layer is less than or equal to 20%.

8. The side window glass according to any one of claims 1-5, characterized in that, The heating power density of the rearview mirror observation area on the side window glass ranges from 300-1500 W / m. 2 .

9. The side window glass according to claim 8, characterized in that, The heating power density of the rearview mirror observation area on the side window glass ranges from 400-1300 W / m. 2 .

10. The side window glass according to any one of claims 1-5, characterized in that, The glass substrate includes a first glass plate, an intermediate layer, and a second glass plate stacked together. The first glass plate is disposed on the side closer to the ambient light outside the vehicle than the second glass plate. The first glass plate has a first surface closer to the ambient light outside the vehicle and a second surface farther from the ambient light outside the vehicle. The second glass plate has a third surface closer to the first glass plate and a fourth surface farther from the first glass plate. The heat insulation layer is disposed on the second side of the first glass plate, or the third side of the second glass plate, or the fourth side of the second glass plate.

11. The side window glass according to claim 10, characterized in that, When the heat insulation layer is disposed on the second side of the first glass plate, or on the third side of the second glass plate, the heat insulation layer includes at least one of an infrared absorbing coating, a silver-based nanofilm layer, a metal oxide nanofilm layer, and an infrared blocking micron coating.

12. The side window glass according to claim 11, characterized in that, The infrared absorbing coating includes infrared absorbing nanoparticles, and the materials of the infrared absorbing nanoparticles include at least one of indium tin oxide, tungsten trioxide, cesium tungsten bronze, antimony tin oxide, lanthanum hexaboride, and doped vanadium dioxide.

13. The side window glass according to claim 10, characterized in that, When the heat insulation layer is disposed on the fourth side of the second glass plate, the heat insulation layer includes at least one of an infrared absorbing coating and a fluorine-doped tin oxide nanofilm layer.

14. The side window glass according to claim 1, 2, 11, 12, or 13, characterized in that, The side window glass also includes: A patch structure is disposed on the rearview mirror observation area on the glass substrate, and the patch structure is disposed on the side of the glass substrate away from the ambient light outside the vehicle. The transparent conductive coating is applied to the patch structure.

15. The side window glass according to claim 14, characterized in that, The side window glass also includes: An edge sealing structure is provided on both sides of the patch structure in the lifting direction of the side window glass, and the thickness of the edge sealing structure gradually decreases from the near end to the far end of the connection with the patch structure.

16. The side window glass according to claim 14, characterized in that, The patch structure includes a stacked transparent patch and an adhesive layer. The transparent patch is bonded to the rearview mirror observation area of ​​the glass substrate by the adhesive layer. The transparent conductive coating is disposed on the transparent patch on the side close to the adhesive layer.

17. The side window glass according to claim 4 or 16, characterized in that, The transparent conductive coating includes at least one of silver-based nanofilms, metal oxide nanofilms, carbon nanotube conductive coatings, graphene conductive coatings, poly(3,4-ethylenedioxythiophene) conductive coatings, and two-dimensional titanium carbide conductive coatings.

18. A means of transportation, characterized in that, It includes a vehicle body and a side window glass as described in any one of claims 1-17, the side window glass being mounted on a side window mounting position of the vehicle body.

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