Electric heating glass and vehicle

Abstract

The invention provides electric heating glass and a vehicle, the width-to-longitudinal ratio of the electric heating glass is p, p is smaller than 1, in the extending direction of the electric heating glass, the electric heating glass comprises a skylight part and a windshield part, in the thickness direction of the electric heating glass, the electric heating glass comprises an outer glass plate, an inner glass plate, a heat insulation film, a first bus bar and a second bus bar, the outer glass plate comprises a first surface and a second surface, the inner glass plate comprises a third surface and a fourth surface, the heat insulation film is arranged on the second surface or the third surface, the heat insulation film is arranged on the skylight part and the wind shielding part, the heat insulation film comprises a conductive layer, and the first bus bar and the second bus bar are arranged between the outer glass plate and the inner glass plate. The first bus bar and the second bus bar are arranged at an interval and are electrically connected to the conductive layer. The electric heating glass has the heat insulation and heating effects, has good appearance consistency, and is beneficial to improving the driving experience of a user when being applied to a vehicle.

Description

Technical Field

[0001] This application relates to the field of glass technology, and more particularly to an electrically heated glass and a vehicle. Background Technology

[0002] Traditional vehicles typically have a separate rear windshield located at the rear to provide passengers with rear visibility. With the development of new energy vehicles, larger and more transparent sunroofs are being widely used in vehicle roofs.

[0003] However, traditional rear windshields are typically wider laterally than longitudinally, resulting in limited visibility. While sunroofs offer a wide field of vision, their structure separates them from the rear windshield, failing to effectively improve visibility in the rear windshield area.

[0004] Meanwhile, to improve heat insulation performance, sunroof glass often undergoes a coating treatment, which alters the glass's reflective color. Traditional rear windshields, on the other hand, typically do not have a coating; instead, they achieve defogging and defrosting functions through the printing and heating of silver paste. These differences in color and appearance further impact the overall consistency of the vehicle and reduce the user experience. Summary of the Invention

[0005] The purpose of this application is to provide an electrically heated glass and a vehicle, which has both heat insulation and heating effects, and has good appearance consistency, thus improving the user's driving experience when applied to a vehicle.

[0006] This application provides an electrically heated glass with a width-to-length ratio of p, where p = D / L, D represents the width of the electrically heated glass, L represents the extension length of the electrically heated glass, and p < 1. Along the extension direction of the electrically heated glass, it includes a skylight portion and a windproof portion. Along the thickness direction of the electrically heated glass, it includes an outer glass panel, an inner glass panel, a heat insulation film, a first busbar, and a second busbar. The outer glass panel includes a first surface and a second surface arranged opposite to each other, and the inner glass panel includes a third surface and a fourth surface arranged opposite to each other. The heat insulation film is disposed on the second surface or the third surface, and is disposed on the skylight portion and the windproof portion. The heat insulation film includes a conductive layer. The first busbar and the second busbar are both disposed between the outer glass panel and the inner glass panel, and are spaced apart. The first busbar and the second busbar are both electrically connected to the conductive layer.

[0007] In the electrically heated glass provided in this application, the aspect ratio p is set to be less than 1, enabling the electrically heated glass to be used as a panoramic glass for vehicles. A heat-insulating film is disposed on the sunroof and windshield portions of the electrically heated glass. On one hand, the heat-insulating film isolates heat, giving the electrically heated glass a heat-insulating effect. On the other hand, a first busbar and a second busbar are electrically connected to the conductive layer of the heat-insulating film, respectively. By applying a voltage between the first and second busbars, a heating current is formed in the heat-insulating film. The heat-insulating film heats up under the action of the heating current, thus giving the electrically heated glass a heating effect. This allows the electrically heated glass to have functions such as defogging, defrosting, and de-icing.

[0008] Furthermore, the heat-insulating film is applied to both the sunroof and the windshield to eliminate color differences between the two sections of the electrically heated glass. This improves the overall appearance consistency of the electrically heated glass and enhances the driving experience for users when it is used in vehicles. The electrically heated glass in this embodiment combines heat insulation and heating effects. The sunroof section can be used as the sunroof glass, and the windshield section can be used as the rear window. This avoids the problems of color differences and poor appearance consistency between the sunroof and rear window when they are separately installed in existing vehicles. For example, the sunroof typically uses a coated heat insulation film, while the rear window uses silver paste printing for heating. Furthermore, the silver paste printing on the rear window can obstruct visibility and cause noticeable visual issues. This ensures the overall consistency of the vehicle and improves the user experience.

[0009] In one possible implementation, the electrically heated glass has a viewing area, a first busbar and a second busbar are spaced apart along the width direction of the electrically heated glass, and the viewing area of ​​the electrically heated glass is located between the first busbar and the second busbar. The first busbar extends from the skylight portion to the windbreak portion, and the second busbar extends from the skylight portion to the windbreak portion.

[0010] In one possible implementation, the electrically heated glass has a viewing area, a first busbar and a second busbar are spaced apart along the width direction of the electrically heated glass, and the viewing area of ​​the electrically heated glass is located between the first busbar and the second busbar. The first busbar includes a first busbar portion and a second busbar portion, which are spaced apart along the extension direction of the electrically heated glass. The second busbar includes a third busbar portion and a fourth busbar portion, which are spaced apart along the extension direction of the electrically heated glass.

[0011] Both the first busbar section and the third busbar section are located in the skylight section, and the first busbar section and the third busbar section are electrically connected to the heat insulation film provided in the skylight section.

[0012] Both the second busbar section and the fourth busbar section are located in the windbreak section, and the second busbar section and the fourth busbar section are electrically connected to the heat insulation film provided in the windbreak section.

[0013] In one possible implementation, the electrically heated glass has a field of view area, the width of which is ≤1000mm along the width direction of the electrically heated glass, and the input voltage between the first busbar and the second busbar is 12V to 15V.

[0014] In one possible implementation, the electrically heated glass has a viewing area, a first busbar and a second busbar are spaced apart along the extension direction of the electrically heated glass, and the viewing area of ​​the electrically heated glass is located between the first busbar and the second busbar.

[0015] In one possible implementation, the extension direction of the electrically heated glass, the extension length of the field of view of the electrically heated glass is >1000mm, and the voltage between the first busbar and the second busbar is 20V to 50V.

[0016] In one possible implementation, the electrically heated glass has a viewing area, the skylight portion includes a first viewing area, the windproof portion includes a second viewing area, the first and second viewing areas constitute the viewing area of ​​the electrically heated glass, the first and second viewing areas are spaced apart along the extension direction of the electrically heated glass, the first busbar includes a first busbar portion and a second busbar portion, the viewing area of ​​the electrically heated glass is located between the first busbar portion and the second busbar portion, and the second busbar is located between the first and second viewing areas.

[0017] In one possible implementation, the second busbar includes a third busbar portion and a fourth busbar portion, which are spaced apart along the extension direction of the electrically heated glass.

[0018] Along the extension direction of the electrically heated glass, the third busbar portion and the first busbar portion are located on opposite sides of the first field of view, and the fourth busbar portion and the second busbar portion are located on opposite sides of the second field of view.

[0019] In one possible implementation, along the extension direction of the electrically heated glass, the extension length of the first field of view is ≤1000mm, and the voltage between the second busbar and the first busbar portion is 12V to 15V; or, the extension length of the first field of view is >1000mm, and the voltage between the second busbar and the first busbar portion is 20V to 50V.

[0020] In one possible implementation, the electrically heated glass has a field of view area, the skylight portion includes a first field of view area, the windproof portion includes a second field of view area, the first field of view area and the second field of view area constitute the field of view area of ​​the electrically heated glass, and the first field of view area and the second field of view area are spaced apart along the extension direction of the electrically heated glass; or, the first field of view area and the second field of view area are adjacent to each other.

[0021] In one possible implementation, the first field of view and the second field of view are spaced apart along the extension direction of the electrically heated glass. The electrically heated glass also includes an intermediate shielding layer, which is disposed on the second surface and / or the fourth surface. Along the extension direction of the electrically heated glass, the intermediate shielding layer is located between the first field of view and the second field of view.

[0022] In one possible implementation, the first field of view and the second field of view are spaced apart along the extension direction of the electrically heated glass. The electrically heated glass also includes a sandwich layer disposed between the second surface and the third surface. The sandwich layer includes an intermediate colored portion located between the first field of view and the second field of view along the extension direction of the electrically heated glass.

[0023] In one possible implementation, the heat insulation film includes a first heat insulation portion and a second heat insulation portion, which are spaced apart along the extension direction of the electrically heated glass. The first heat insulation portion is located in the skylight portion, and the second heat insulation portion is located in the windproof portion.

[0024] This application also provides a vehicle, including a frame and electrically heated glass as described above, the electrically heated glass being mounted on the frame. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0026] Figure 1 This is a schematic diagram of the structure of electrically heated glass applied to a vehicle according to an embodiment of this application;

[0027] Figure 2 for Figure 1 The diagram shown is a top view of the electrically heated glass in the first embodiment.

[0028] Figure 3 for Figure 2 The diagram shows the cross-sectional structure of the electrically heated glass at point AA.

[0029] Figure 4 for Figure 2A schematic diagram of the cross-sectional structure of the electrically heated glass at point BB;

[0030] Figure 5 This is a schematic cross-sectional view of the heat insulation film on the third surface in an electrically heated glass according to another embodiment.

[0031] Figure 6 The defrosting rate of the heat insulation film 370 in the electrically heated glass 300 at different power densities;

[0032] Figure 7 for Figure 2 The diagram shown is a top view of the electrically heated glass in the second embodiment.

[0033] Figure 8 for Figure 2 The diagram shows a top view of the electrically heated glass in the third embodiment.

[0034] Figure 9 for Figure 2 The diagram shows a top view of the electrically heated glass in the fourth embodiment.

[0035] Figure 10 for Figure 9 A schematic diagram of the cross-sectional structure of the electrically heated glass at point CC;

[0036] Figure 11 for Figure 9 A schematic diagram of the cross-sectional structure of the electrically heated glass at point DD;

[0037] Figure 12 for Figure 2 The diagram shows a top view of the electrically heated glass in the fifth embodiment.

[0038] Figure 13 for Figure 2 The diagram shows a top view of the electrically heated glass in the sixth embodiment.

[0039] Figure 14 for Figure 2 The diagram shows a top view of the electrically heated glass in the seventh embodiment.

[0040] Figure 15 for Figure 2 The diagram shows a top view of the electrically heated glass 300 in the eighth embodiment.

[0041] Reference numerals: 1. Vehicle; 100. Frame; 300. Heated glass; 210. Sunroof section; 230. Windshield section; S1. First field of view; P1. First shaded area; S2. Second field of view; P2. Second shaded area; P3. Intermediate shaded area; 310. Outer glass panel; 301. First surface; 302. Second surface; 330. Inner glass panel; 303. Third surface; 304. Fourth surface; 350. Laminate; 3 60. Shielding layer; 370. Heat insulation film; 10. First film portion; 30. Second film portion; 390. Heating assembly; 50. First busbar; 51. First busbar portion; 53. Second busbar portion; 70. Second busbar; 71. Third busbar portion; 73. Fourth busbar portion; P11. First partition area; P22. Second partition area; 371. First heat insulation part; 373. Second heat insulation part; 375. Film removal line. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the electrically heated glass 300 provided in this application embodiment applied to vehicle 1. Figure 2 for Figure 1 The diagram shows a top view of the electrically heated glass 300 in a first embodiment. Figure 1 and Figure 2 The dashed line is only used to distinguish the areas of the sunroof section 210 and the windbreak section 230 in the top view, and does not represent the actual structure.

[0044] Electrically heated glass 300 is typically used in vehicle 1. This application embodiment uses the electrically heated glass 300 as an example of a panoramic rear windshield of vehicle 1 for illustration. Figure 1 As shown, along the extending direction of the electrically heated glass 300, the electrically heated glass 300 includes a skylight portion 210 and a windbreak portion 230, with the skylight portion 210 connected to the windbreak portion 230. In this embodiment, the windbreak portion 230 is curved relative to the skylight portion 210. For example, the angle of curvature of the windbreak portion 230 relative to the skylight portion 210 is α, where 90° < α < 180°.

[0045] Specifically, vehicle 1 includes a frame 100 and electrically heated glass 300, which is mounted on the frame 100. The sunroof portion 210 is located on the top of the vehicle and serves as the sunroof glass for vehicle 1. The windshield portion 230 is located above the rear seats of the vehicle and serves as the rear windshield glass for vehicle 1. In this embodiment, the aspect ratio of the electrically heated glass 300 is p, where p = D / L, D represents the width of the electrically heated glass 300, and L represents the extension length of the electrically heated glass 300. Where p < 1, that is, the width of the electrically heated glass 300 is less than its extension length.

[0046] Among them, such as Figure 2 As shown, the electrically heated glass 300 has a viewing area and a shielding area, with the shielding area surrounding the viewing area. Specifically, the sunroof portion 210 includes a first viewing area S1 and a first shielding area P1, with the first shielding area P1 surrounding the first viewing area S1. The windbreak portions 230 all include a second viewing area S2 and a second shielding area P2, with the second shielding area P2 surrounding the second viewing area S2. The first viewing area S1 and the second viewing area S2 together constitute the viewing area of ​​the electrically heated glass 300, and the first shielding area P1 and the second shielding area P2 together constitute the shielding area of ​​the electrically heated glass 300.

[0047] See also Figure 2 , Figure 3 and Figure 4 , Figure 3 for Figure 2 The diagram shows the cross-sectional structure of the electrically heated glass 300 at point AA. Figure 4 for Figure 2 The diagram shows a cross-sectional view of the electrically heated glass 300 at point BB. Figure 2 The first busbar 50 and the second busbar 70 only indicate their locations; in reality, the first busbar 50 and the second busbar 70 will be covered by the shielding area of ​​the electrically heated glass 300. Figure 3 The diagram below is a simplified cross-sectional view of the electrically heated glass 300, and does not show the angle at which the windproof portion 230 of the electrically heated glass 300 is bent relative to the skylight portion 210.

[0048] Along the thickness direction of the electrically heated glass 300, the electrically heated glass 300 includes an outer glass plate 310, an inner glass plate 330, a laminate 350, a heat insulation film 370, and a heating component 390.

[0049] The outer glass panel 310 includes a first surface 301 and a second surface 302, which are disposed opposite to each other along the thickness direction of the outer glass panel 310. The first surface 301 faces the exterior of the vehicle. In this embodiment, the outer glass panel 310 is formed by high-temperature bending at at least 500°C. The thickness of the outer glass panel 310 is typically 1.6mm to 5.0mm. Specifically, the thickness of the outer glass panel 310 can be 1.6mm, 1.8mm, 2.1mm, 2.6mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, or any value between these values. In some embodiments, the thickness of the outer glass panel 310 is 1.8mm or 2.1mm.

[0050] The inner glass panel 330 includes a third surface 303 and a fourth surface 304, which are arranged opposite to each other along the thickness direction of the inner glass panel 330. The fourth surface 304 faces the interior of the vehicle. In this embodiment, the inner glass panel 330 is formed by high-temperature bending at at least 500°C. The thickness of the inner glass panel 330 is typically 0.7mm to 5.0mm. Specifically, the thickness of the inner glass panel 330 can be 0.7mm, 1.1mm, 1.6mm, 1.8mm, 2.1mm, 2.6mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, or any value between these values. In some embodiments, the thickness of the inner glass panel 330 is 1.8mm or 2.1mm. The inner glass panel 330 can be clear glass, ordinary green glass, or solar green glass. To improve heat insulation, ordinary green glass or solar green glass with heat-absorbing function is preferred for the inner glass panel 330.

[0051] A sandwich layer 350 is sandwiched between the second surface 302 and the third surface 303 to sandwich the outer glass plate 310 and the inner glass plate 330. In this embodiment, the sandwich layer 350 is made of a thermoplastic material to bond the second surface 302 and the third surface 303, thereby bonding and fixing the outer glass plate 310 and the inner glass plate 330 together. For example, the material of the sandwich layer 350 can be polycarbonate (PC), polyvinyl chloride (PVC), polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyacrylate (PA), polymethyl methacrylate (PMMA), polyurethane (PUR), ionomer polymer film (SGP), etc.

[0052] A heat insulation film 370 is disposed on the second surface 302 or the third surface 303, and is also disposed on the skylight portion 210 and the windbreak portion 230. The heat insulation film 370 includes a conductive layer, enabling it to provide both heat insulation and heating effects through heating the conductive layer, thus allowing the electrically heated glass 300 to combine heat insulation and defogging / frost removal. In this embodiment, the conductive layer is a metal layer or a metal alloy layer, which reflects solar energy to achieve the heat insulation effect. It is understood that in this embodiment, the heat insulation film 370 is a reflective heat insulation film, and its heat insulation principle is based on reflecting solar energy. In this case, the outer glass panel 310 is preferably made of high-transmittance clear glass or ultra-clear glass.

[0053] For example, the metal layer can be made of gold (Au), silver (Ag), copper (Cu), aluminum (Al), or molybdenum (Mo), and the metal alloy layer can be made of silver alloy. When the conductive layer is a silver layer or a silver alloy layer, the heat insulation film 370 further includes at least two dielectric layers, with the silver layer or silver alloy layer located between the at least two dielectric layers to protect the silver layer or silver alloy layer from oxidation. The dielectric layer may contain at least one of zinc oxide, tin oxide, indium oxide, titanium oxide, silicon oxide, aluminum oxide, silicon nitride, silicon carbide, aluminum nitride, or titanium metal. Furthermore, the heat insulation film 370 may also include a metal oxide layer, the material of which can be indium tin oxide, fluorine-doped tin dioxide, aluminum-doped tin dioxide, gallium-doped tin dioxide, boron-doped tin dioxide, tin-zinc oxide, or antimony-doped tin oxide.

[0054] In this embodiment, the heat insulation film 370 includes a first film portion 10 and a second film portion 30, the second film portion 30 being disposed around the first film portion 10, and both the first film portion 10 and the second film portion 30 including a conductive layer. The first film portion 10 is located in a first viewing area S1 and a second viewing area S2, and the second film portion 30 is located in a first shielding area P1 and a second shielding area P2.

[0055] The heating assembly 390 includes a first busbar 50 and a second busbar 70, both of which are disposed between the outer glass plate 310 and the inner glass plate 330. The first busbar 50 and the second busbar 70 are spaced apart and electrically connected to the conductive layer of the heat insulation film 370, thereby achieving an electrical connection between the first busbar 50 and the second busbar 70 and the heat insulation film 370, thus realizing the heating effect of the heat insulation film 370, and further facilitating the defogging / frost removal effect of the electrically heated glass 300. Specifically, the first busbar 50 and the second busbar 70 are both electrically connected to the conductive layer of the second film portion 30 in the heat insulation film 370, thereby achieving an electrical connection between the first busbar 50 and the second busbar 70 and the conductive layer of the heat insulation film 370. For example, the materials of the first busbar 50 and the second busbar 70 can be metal foil, conductive silver paste, etc. In this embodiment, both the first busbar 50 and the second busbar 70 include a conductive material layer and a conductor connected to the conductive material layer. Specifically, the first busbar 50 or the second busbar 70 can be obtained by setting a conductive material layer on the heat insulation film 370 and then connecting the conductor. At this time, the conductive material layer can increase the adhesion between the first busbar 50 or the second busbar 70 and the heat insulation film 370, thereby improving the connection strength between the first busbar 50 or the second busbar 70 and the heat insulation film 370. For example, the conductive material layer is a conductive silver paste layer, and the conductor is a metal foil.

[0056] Along the thickness direction of the heat insulation film 370, the first busbar 50 and the second busbar 70 are located on one side of the heat insulation film 370. For example, as shown... Figure 3 and Figure 4 As shown, in the first embodiment, the heat insulation film 370 in the electrically heated glass 300 is disposed on the second surface 302, and the first busbar 50 and the second busbar 70 are disposed on the side of the heat insulation film 370 facing away from the outer glass plate 310. It can be understood that, as... Figure 5 As shown, Figure 5 This is a cross-sectional structural diagram of the heat insulation film 370 disposed on the third surface 303 in another embodiment of the electrically heated glass 300. In other embodiments, when the heat insulation film 370 is disposed on the third surface 303, the first busbar 50 and the second busbar 70 are disposed on the side of the heat insulation film 370 away from the inner glass plate 330.

[0057] In this embodiment, both the first busbar 50 and the second busbar 70 are located within the shielding area of ​​the electrically heated glass 300, thereby shielding the first busbar 50 and the second busbar 70 and improving the appearance of the electrically heated glass 300. For example, the distance between the first busbar 50 or the second busbar 70 and the edge contour line of the electrically heated glass 300 is approximately 6mm to 30mm. In this embodiment, the first busbar 50 is connected to the positive terminal of the power supply, and the second busbar 70 is connected to the negative terminal. In other embodiments, the first busbar 50 may also be connected to the negative terminal of the power supply, and the second busbar 70 may also be connected to the negative terminal, so that the heat insulation film 370 can be heated by applying a voltage between the first busbar 50 and the second busbar 70.

[0058] In this embodiment, the electrically heated glass 300 further includes a shielding layer 360. The shielding layer 360 is disposed on the second surface 302 and / or the fourth surface 304. Specifically, the shielding layer 360 is located in the skylight portion 210 and the windbreak portion 230. The portion of the shielding layer 360 in the skylight portion 210 forms a first shielding area P1, and the portion of the shielding layer 360 in the windbreak portion 230 forms a second shielding area P2. In the first embodiment, the shielding layer 360 is illustrated by being disposed on the second surface 302. In other embodiments, the shielding layer 360 may also be disposed on the fourth surface 304; or, the shielding layer 360 may be disposed on both the second surface 302 and the fourth surface 304 simultaneously.

[0059] The visible light transmittance of the shielding layer 360 is less than or equal to 5.0%. In some embodiments, the visible light transmittance of the shielding layer 360 is less than or equal to 1.5%. The shielding layer 360 is used to improve the appearance of the electrically heated glass 300, protect the internal components of the vehicle, and improve local adhesion. Exemplarily, the material of the shielding layer 360 can be any of ceramic ink, ultraviolet ink, or water-based glass coloring liquid. The water-based glass coloring liquid is a silica sol-based coating. The coating formed by this coloring liquid has high stability with the glass plate. When the water-based glass coloring liquid is applied to the glass plate, after drying and curing, a polymer network structure is formed. This polymer network structure increases the toughness of the shielding layer 360, and the increased toughness improves the mechanical strength of the coating, such as abrasion resistance. Furthermore, the shielding layer 360 also includes a light-blocking agent to further enhance the shielding effect of the shielding layer 360. The light-blocking agent includes a light absorber and / or a light reflector.

[0060] In other embodiments, the electrically heated glass 300 may not have a shielding layer 360. Instead, it may have an interlayer 350 comprising a colored portion and a light-transmitting portion. The colored portion is located in the skylight portion 210 and the windproof portion 230. The portion of the colored portion in the skylight portion 210 forms a first shielding area P1, and the portion of the colored portion in the windproof portion 230 forms a second shielding area P2. The portion of the light-transmitting portion in the skylight portion 210 forms a first viewing area S1, and the portion of the light-transmitting portion in the windproof portion 230 forms a second viewing area S2.

[0061] In the electrically heated glass 300 provided in this embodiment, by setting the aspect ratio p < 1, the electrically heated glass 300 can be used as a panoramic glass for vehicle 1. A heat insulation film 370 is disposed on the sunroof portion 210 and the windshield portion 230 of the electrically heated glass 300. On one hand, the heat insulation film 370 insulates heat, giving the electrically heated glass 300 a heat insulation effect. On the other hand, the first busbar 50 and the second busbar 70 are electrically connected to the conductive layer of the heat insulation film 370, respectively. By applying a voltage between the first busbar 50 and the second busbar 70, a heating current is formed in the heat insulation film 370. Under the action of the heating current, the heat insulation film 370 heats up and generates heat, thereby giving the electrically heated glass 300 a heating effect. This enables the electrically heated glass 300 to have functions such as defogging, defrosting, and de-icing.

[0062] Furthermore, the heat insulation film 370 is disposed on the sunroof portion 210 and the windshield portion 230 to eliminate color difference between the first viewing area S1 of the sunroof portion 210 and the second viewing area S2 of the windshield portion 230 in the electrically heated glass 300. This improves the appearance consistency of the electrically heated glass 300, thereby enhancing the user's driving experience when the electrically heated glass 300 is applied to the vehicle 1. The electrically heated glass 300 of this embodiment has both heat insulation and heating effects. The sunroof portion 210 can be used as sunroof glass, and the windshield portion 230 can be used as rear window glass. This avoids the problems of color difference and poor appearance consistency between the sunroof glass and rear window glass when they are separately installed in existing vehicles. The sunroof glass usually uses a coated heat insulation film, while the rear window glass uses silver paste printing for heating. Furthermore, the silver paste printing on the rear window glass can easily affect the field of vision and make the appearance obvious. This ensures the overall consistency of the vehicle 1 and improves the user experience.

[0063] See Figure 6 , Figure 6 The defrosting rate of the heat insulation film 370 in electrically heated glass 300 under different power densities. Figure 6 As can be seen from this, when the defrosting rate of the electrically heated glass 300 meets 80% within 10 minutes, the power density of the heat insulation film 370 needs to be ≥598W / m². 2When the defrosting rate of the electrically heated glass 300 meets 80% within 15 minutes, the power density of the heat insulation film 370 needs to be ≥529W / m². 2 When the defrosting rate of the electrically heated glass 300 meets 80% within 20 minutes, the power density of the heat insulation film 370 needs to be ≥491W / m². 2 According to regulations, electrically heated glass 300 must achieve a defrosting rate of at least 80% within 20 minutes. Therefore, the electrically heated glass 300 needs to defrost automatically, and a heat insulation film 370 with a power density ≥500W / m² is preferred. 2 .

[0064] The applicant's research found that the length of the electrically heated glass 300 along the direction of the input current is <700mm, and when the input voltage is 12V~15V, the power density of the heat insulation film 370 is >5.0W / dm. 2 At this time, the heat insulation film 370 can automatically defog and defrost. When the length of the electrically heated glass 300 along the direction of the input current is <700mm and the input voltage is 20V~50V, the power density of the heat insulation film 370 is >5.0W / dm. 2 It can even reach >25W / dm 2 At this time, the heat insulation film 370 can automatically defog and defrost, but it may cause the local hot spots of the electrically heated glass 300 to exceed the standard when it is heated, resulting in the cracking of the electrically heated glass 300.

[0065] The electrically heated glass 300 has a length of 700nm to 1000nm along the direction of the input current. When the input voltage is 12V to 15V, the power density of the heat insulation film 370 can reach 3.5W / dm. 2 ~5.0W / dm 2 At this time, the heat insulation film 370 can automatically defog and can quickly defrost in conjunction with windshield wipers or air conditioning. When the length of the electrically heated glass 300 along the direction of the input current is 700nm~1000nm and the input voltage is 20V~50V, the power density of the heat insulation film 370 is >5.0W / dm. 2 It can even reach >20W / dm 2 At this time, the heat insulation film 370 can automatically defog and defrost, but it may cause the local hot spots of the electrically heated glass 300 to exceed the standard when it is heated, resulting in the cracking of the electrically heated glass 300.

[0066] When the length of the electrically heated glass 300 along the direction of the input current is greater than 1000 mm, and the input voltage is 12–15 V, the power density of the transparent conductive film 4 is less than 3.5 W / dm². 2 At this point, the self-defrosting and defrosting effects of the heat insulation film 370 are not ideal. When the length of the electrically heated glass 300 along the direction of the input current is >1000mm and the input voltage is 20V~50V, the power density of the heat insulation film 370 is >5.0W / dm². 2It can even reach >15W / dm 2 At this time, the heat insulation film 370 can automatically defog and defrost.

[0067] This embodiment of the application achieves autonomous defogging and defrosting of the heat insulation film 370 by setting the positions of the first busbar 50 and the second busbar 70, while preventing the electrically heated glass 300 from cracking. The structure of the electrically heated glass 300 in this embodiment of the application will be described below in conjunction with the arrangement of the first busbar 50 and the second busbar 70.

[0068] Continue reading Figures 2 to 4 In the electrically heated glass 300 of the first embodiment, a heat insulation film 370 can be formed by coating the entire surface of the second surface 302 or the third surface 303. Along the width direction of the electrically heated glass 300, a first busbar 50 and a second busbar 70 are spaced apart, and the viewing area of ​​the electrically heated glass 300 is located between the first busbar 50 and the second busbar 70; that is, both the first viewing area S1 and the second viewing area S2 are located between the first busbar 50 and the second busbar 70. The first busbar 50 extends from the skylight portion 210 to the windbreak portion 230. In this embodiment, the first busbar 50 extends from the first shielding area P1 to the second shielding area P2, and the first busbar 50 is electrically connected to the second film portion 30 of the heat insulation film 370, which is located between the first shielding area P1 and the second shielding area P2. The second busbar 70 extends from the skylight portion 210 to the windbreak portion 230. In this embodiment, the second busbar 70 extends from the first shielding area P1 to the second shielding area P2, and the second busbar 70 is electrically connected to the portion of the second membrane portion 30 of the heat insulation film 370 located in the first shielding area P1 and the second shielding area P2.

[0069] In the first embodiment, the first field of view S1 is adjacent to the second field of view S2, and there is no obstruction area between the first field of view S1 and the second field of view S2. At this time, the obstruction area of ​​the electrically heated glass 300 formed by the first obstruction area P1 and the second obstruction area P2 is the edge obstruction area.

[0070] When the electrically heated glass 300 is working, a voltage can be applied between the first busbar 50 and the second busbar 70 to heat the heat insulation film 370, thereby enabling the heat insulation film 370 to have both heat insulation and heating effects. In this embodiment, the width D1 of the first field of view S1 is ≤1000mm, the width D2 of the second field of view S2 is ≤1000mm, and the input voltage between the first busbar 50 and the second busbar 70 is 12V~15V.

[0071] In the electrically heated glass 300 of the first embodiment, when a voltage is applied between the first busbar 50 and the second busbar 70, since the width of the electrically heated glass 300 is less than the extension length of the electrically heated glass 300, the resistance of the heat insulation film 370 along the width direction of the electrically heated glass 300 is less than the resistance along the extension direction of the electrically heated glass 300. At this time, by setting the first busbar 50 and the second busbar 70 to be spaced apart along the width direction of the electrically heated glass 300, a lower voltage can be applied between the first busbar 50 and the second busbar 70 to achieve the heating effect of the electrically heated glass 300 without causing the electrically heated glass 300 to break, thereby making the electrically heated glass 300 suitable for operation at a lower voltage. In addition, both the first busbar 50 and the second busbar 70 extend from the sunroof portion 210 to the windshield portion 230. When voltage is applied between the first busbar 50 and the second busbar 70, the sunroof portion 210 and the windshield portion 230 can be heated simultaneously, thereby heating the entire field of vision area of ​​the electrically heated glass 300.

[0072] Furthermore, in the first embodiment, the heat insulation film 370 is disposed in the skylight portion 210 and the windproof portion 230 of the electrically heated glass 300. There is no color difference between the first viewing area S1 and the second viewing area S2 of the electrically heated glass 300, so that the appearance of the electrically heated glass 300 is harmonious and without color difference, and the heating and heat insulation problems can be solved at the same time.

[0073] See Figure 7 , Figure 7 for Figure 2 The diagram shows a top view of the electrically heated glass 300 in a second embodiment.

[0074] The difference between the electrically heated glass 300 of the second embodiment and the electrically heated glass 300 of the first embodiment is that the first busbar 50 includes a first busbar portion 51 and a second busbar portion 53, which are spaced apart along the extension direction of the electrically heated glass 300. The second busbar 70 includes a third busbar portion 71 and a fourth busbar portion 73, which are spaced apart along the extension direction of the electrically heated glass 300.

[0075] Specifically, along the width direction of the electrically heated glass 300, the first busbar 50 and the second busbar 70 are spaced apart, and the field of view of the electrically heated glass 300 is located between the first busbar 50 and the second busbar 70. The first busbar portion 51 of the first busbar 50 and the third busbar portion 71 of the second busbar 70 are both located in the skylight portion 210, and the first busbar portion 51 and the third busbar portion 71 are electrically connected to the heat insulation film 370 disposed in the skylight portion 210. In this embodiment, the first busbar portion 51 and the third busbar portion 71 are both located in the first shielding area P1, and along the width direction of the electrically heated glass 300, the first busbar portion 51 and the third busbar portion 71 are respectively located on opposite sides of the first field of view S1. The first busbar portion 51 and the third busbar portion 71 are both electrically connected to the portion of the second film portion 30 of the heat insulation film 370 located in the first shielding area P1.

[0076] Both the second busbar portion 53 and the fourth busbar portion 73 are located in the windbreak portion 230, and are electrically connected to the heat insulation film 370 disposed in the windbreak portion 230. In this embodiment, both the second busbar portion 53 and the fourth busbar portion 73 are located in the second shielding area P2, and along the width direction of the electrically heated glass 300, the second busbar portion 53 and the fourth busbar portion 73 are located on opposite sides of the second viewing area S2, and are electrically connected to the portion of the second film portion 30 located in the second shielding area P2.

[0077] In this embodiment, the first field of view S1 and the second field of view S2 are adjacent, and there is no obstruction area between the first field of view S1 and the second field of view S2. At this time, the obstruction area of ​​the electrically heated glass 300 formed by the first obstruction area P1 and the second obstruction area P2 is the edge obstruction area.

[0078] When the electrically heated glass 300 is working, voltage can be applied between the first busbar portion 51 of the first busbar 50 and the third busbar portion 71 of the second busbar 70 to heat the skylight portion 210 of the electrically heated glass 300, or voltage can be applied between the second busbar portion 53 of the first busbar 50 and the fourth busbar portion 73 of the second busbar 70 to heat the windproof portion 230 of the electrically heated glass 300. This allows for separate control of heating of the skylight portion 210 and the windproof portion 230. In this embodiment, the width D1 of the first viewing area S1 of the electrically heated glass 300 is ≤1000mm, the width D2 of the second viewing area S2 is ≤1000mm, the input voltage between the first busbar portion 51 and the third busbar portion 71 is 12V~15V, and the input voltage between the second busbar portion 53 and the fourth busbar portion 73 is 12V~15V.

[0079] In the second embodiment of the electrically heated glass 300, on the one hand, by providing a heat insulation film 370 including a conductive layer, and by using a first busbar 50 and a second busbar 70 to input voltage to the conductive layer of the heat insulation film 370, the electrically heated glass 300 can have both heat insulation and heating effects. On the other hand, by providing a first busbar 50 including a first busbar portion 51 and a second busbar portion 53, and a second busbar 70 including a third busbar portion 71 and a fourth busbar portion 73, the skylight portion 210 and the windbreak portion 230 of the electrically heated glass 300 can be heated separately.

[0080] Furthermore, in the second embodiment, the first busbar 50 and the second busbar 70 of the electrically heated glass 300 are spaced apart along the width direction of the electrically heated glass 300. The heat insulation film 370 has a low resistance between the first busbar portion 51 of the first busbar 50 and the third busbar portion 71 of the second busbar 70, so that a low voltage can be applied between the first busbar portion 51 and the third busbar portion 71 to achieve a heating effect on the skylight portion 210 of the electrically heated glass 300 without causing the electrically heated glass 300 to break. The heat insulation film 370 also has a low resistance between the second busbar portion 53 of the first busbar 50 and the fourth busbar portion 73 of the second busbar 70, so that a low voltage can be applied between the second busbar portion 53 and the fourth busbar portion 73 to achieve a heating effect on the windproof portion 230 of the electrically heated glass 300 without causing the electrically heated glass 300 to break. The electrically heated glass 300 of this embodiment is suitable for operation at a lower voltage, and the heat insulation film 370 is provided on the skylight portion 210 and the windproof portion 230, so that there is no color difference between the first viewing area S1 and the second viewing area S2 of the electrically heated glass 300, thereby making the appearance of the electrically heated glass 300 harmonious and without color difference.

[0081] See Figure 8 , Figure 8 for Figure 2 The diagram shows a top view of the electrically heated glass 300 in the third embodiment.

[0082] The difference between the electrically heated glass 300 of the third embodiment and the electrically heated glass 300 of the second embodiment is that the first field of view S1 and the second field of view S2 in the electrically heated glass 300 of the third embodiment are spaced apart along the extension direction of the electrically heated glass 300.

[0083] Specifically, the shielding area of ​​the electrically heated glass 300 includes an edge shielding area and a middle shielding area P3. The edge shielding area is arranged around the field of view of the electrically heated glass 300 formed by the first field of view S1 and the second field of view S2. Along the extension direction of the electrically heated glass 300, the middle shielding area P3 is located between the first field of view S1 and the second field of view S2.

[0084] In this embodiment, a first shielding area P1 is arranged around the entire circumference of a first field of view S1, and a second shielding area P2 is arranged around the entire circumference of a second field of view S2. The portion of the first shielding area P1 and the second shielding area P2 located between the first field of view S1 and the second field of view S2 constitutes an intermediate shielding area P3. In this embodiment, the frame 100 includes a frame body and a crossbeam mounted on the frame body. The crossbeam supports the electrically heated glass 300 and can absorb and disperse external forces applied to the top of the vehicle, thereby improving the strength and safety of the vehicle's top. The intermediate shielding area P3 can be used to shield the crossbeam in the frame 100.

[0085] In this embodiment, the shielding layer 360 includes an intermediate shielding layer disposed on the second surface 302 and / or the fourth surface 304. The intermediate shielding layer is located between the first viewing area S1 and the second viewing area S2, and forms an intermediate shielding area P3. In other embodiments, the colored portion of the interlayer 350 may also include an intermediate colored portion. Along the extending direction of the electrically heated glass 300, the intermediate colored portion is located between the first viewing area S1 and the second viewing area S2, and forms an intermediate shielding area P3.

[0086] Compared to the electrically heated glass 300 of the second embodiment, in the electrically heated glass 300 of the third embodiment, the first viewing area S1 and the second viewing area S2 are spaced apart, so that the intermediate shielding area P3 set in the space between the first viewing area S1 and the second viewing area S2 shields the crossbeam, thereby improving the appearance of the electrically heated glass 300. In addition, in the electrically heated glass 300 of the third embodiment, the heat insulation film 370 is provided in the skylight portion 210 and the windproof portion 230, so that there is no color difference between the first viewing area S1 and the second viewing area S2, thereby making the appearance of the electrically heated glass 300 harmonious and without color difference, and suitable for operation at lower voltages.

[0087] In the electrically heated glass 300 provided in the first to third embodiments, the first busbar 50 and the second busbar 70 are both spaced apart along the width direction of the electrically heated glass 300, so that the resistance of the heat insulation film 370 between the first busbar 50 and the second busbar 70 is small, thereby making the electrically heated glass 300 of the first to third embodiments suitable for operation under low pressure.

[0088] See Figure 9 , Figure 10 and Figure 11 , Figure 9 for Figure 2 The electrically heated glass 300 shown is a top view structural schematic diagram of the fourth embodiment. Figure 10 for Figure 9 The diagram shows a cross-sectional view of the electrically heated glass 300 at point CC. Figure 11 for Figure 9The diagram shows a cross-sectional structure of the electrically heated glass 300 at point DD.

[0089] In the electrically heated glass 300 of the fourth embodiment, a heat insulation film 370 can be formed by coating the entire surface of the second surface 302 or the third surface 303. Along the extending direction of the electrically heated glass 300, a first busbar 50 and a second busbar 70 are spaced apart, and the viewing area of ​​the electrically heated glass 300 is located between the first busbar 50 and the second busbar 70; that is, both the first viewing area S1 and the second viewing area S2 are located between the first busbar 50 and the second busbar 70. In this embodiment, the first busbar 50 is located in the first shielding area P1, and the first busbar 50 is electrically connected to the portion of the second film portion 30 of the heat insulation film 370 located in the first shielding area P1. The second busbar 70 is located in the second shielding area P2, and the second busbar 70 is electrically connected to the portion of the second film portion 30 located in the second shielding area P2. In this embodiment, the first field of view S1 and the second field of view S2 are adjacent, and there is no obstruction area between the first field of view S1 and the second field of view S2.

[0090] When the electrically heated glass 300 is working, a voltage can be applied between the first busbar 50 and the second busbar 70 to heat the heat insulation film 370, thereby enabling the electrically heated glass 300 to have both heat insulation and heating effects. In this embodiment, the extension length L0 of the field of view of the electrically heated glass 300 is greater than 1000mm, that is, the sum of the extension lengths of the first field of view S1 and the second field of view S2 of the electrically heated glass 300, L0, is greater than 1000mm, and the input voltage between the first busbar 50 and the second busbar 70 is 20V to 50V. It is understandable that when the input voltage between the first busbar 50 and the second busbar 70 is low, such as 12V to 15V, the electric heating glass 300 will not break. However, under the same heating time, the heating effect of the electric heating glass 300 is relatively poor under higher input voltages (such as 20V to 50V), or it requires more heating time to achieve the same heating effect as the electric heating glass 300 under higher input voltages.

[0091] In the electrically heated glass 300 of the fourth embodiment, when a voltage is applied between the first busbar 50 and the second busbar 70, since the width D of the electrically heated glass 300 is smaller than the extension length L of the electrically heated glass 300, the resistance of the heat insulation film 370 along the extension direction of the electrically heated glass 300 is greater than the resistance along the width direction of the electrically heated glass 300. At this time, by setting the first busbar 50 and the second busbar 70 to be spaced apart along the extension direction of the electrically heated glass 300, the electrically heated glass 300 can have a heating effect under a higher input voltage without causing the electrically heated glass 300 to break.

[0092] Furthermore, in the fourth embodiment, the heat insulation film 370 is provided in the skylight portion 210 and the windproof portion 230 of the electrically heated glass 300, so that there is no color difference between the first viewing area S1 and the second viewing area S2 of the electrically heated glass 300, thereby making the appearance of the electrically heated glass 300 harmonious and without color difference.

[0093] See Figure 12 , Figure 12 for Figure 2 The diagram shows a top view of the electrically heated glass 300 in the fifth embodiment.

[0094] The difference between the electrically heated glass 300 of the fifth embodiment and the electrically heated glass 300 of the fourth embodiment is that the first field of view S1 and the second field of view S2 are spaced apart in the electrically heated glass 300 of the fifth embodiment.

[0095] Specifically, the first field of view S1 and the second field of view S2 are spaced apart along the extending direction of the electrically heated glass 300. The shielding area of ​​the electrically heated glass 300, formed by the first shielding area P1 and the second shielding area P2, includes an edge shielding area and a central shielding area P3. The edge shielding area surrounds the field of view of the electrically heated glass 300 formed by the first field of view S1 and the second field of view S2, and the central shielding area P3 is located between the first field of view S1 and the second field of view S2 along the extending direction of the electrically heated glass 300. In this embodiment, the central shielding area P3 can be set with reference to the central shielding area P3 of the third embodiment, which will not be described again here.

[0096] Compared to the electrically heated glass 300 of the fourth embodiment, in the electrically heated glass 300 of the fifth embodiment, the first viewing area S1 and the second viewing area S2 are spaced apart, so that the intermediate shielding area P3 set in the space between the first viewing area S1 and the second viewing area S2 shields the crossbeam in the frame 100, thereby improving the appearance of the electrically heated glass 300. In addition, in the electrically heated glass 300 of the fifth embodiment, the heat insulation film 370 is provided in the sunroof portion 210 and the windshield portion 230, so that there is no color difference between the first viewing area S1 and the second viewing area S2 of the electrically heated glass 300, thereby making the appearance of the electrically heated glass 300 harmonious and without color difference, and suitable for operation at lower voltages.

[0097] In the electrically heated glass 300 of the fourth to fifth embodiments, the first busbar 50 and the second busbar 70 are located on both sides of the field of view of the electrically heated glass 300 along the extension direction of the electrically heated glass 300, so that the voltage between the heat insulation film 370 and the first busbar 50 and the second busbar 70 is relatively large, thereby making the electrically heated glass 300 of the fourth to fifth embodiments suitable for working under high and low pressure.

[0098] See Figure 13 , Figure 13 for Figure 2 The diagram shows a top view of the electrically heated glass 300 in the sixth embodiment.

[0099] In the electrically heated glass 300 of the sixth embodiment, a heat insulation film 370 can be formed by coating the entire surface of the second surface 302 or the third surface 303. In the electrically heated glass 300, the first viewing area S1 and the second viewing area S2 are spaced apart along the extending direction of the electrically heated glass 300.

[0100] Specifically, the shielding area of ​​the electrically heated glass 300, formed by the first shielding area P1 and the second shielding area P2, includes an edge shielding area and a central shielding area P3. The edge shielding area surrounds the field of view of the electrically heated glass 300 formed by the first field of view S1 and the second field of view S2. Along the extending direction of the electrically heated glass 300, the central shielding area P3 is located between the first field of view S1 and the second field of view S2. In this embodiment, the central shielding area P3 can be set with reference to the central shielding area P3 of the third embodiment, which will not be described again here.

[0101] The first busbar 50 includes a first busbar portion 51 and a second busbar portion 53. The viewing area of ​​the electrically heated glass 300 is located between the first busbar portion 51 and the second busbar portion 53, that is, both the first viewing area S1 and the second viewing area S2 are located between the first busbar portion 51 and the second busbar portion 53. In this embodiment, the first busbar portion 51 is located in the first shielding area P1, and the first busbar portion 51 is located on the side of the first viewing area S1 away from the second viewing area S2. The second busbar portion 53 is located in the second shielding area P2, and the second busbar portion 53 is located on the side of the second viewing area S2 away from the first viewing area S1. The second busbar 70 is located between the first viewing area S1 and the second viewing area S2. In this embodiment, the second busbar 70 is located in the intermediate shielding area P3.

[0102] When the electrically heated glass 300 is working, voltage can be applied between the first busbar portion 51 and the second busbar 70 of the first busbar 50 to heat the skylight portion 210 of the electrically heated glass 300, and voltage can be applied between the second busbar portion 52 and the second busbar 70 of the first busbar 50 to heat the windshield portion 230 of the electrically heated glass 300, thereby achieving separate control of heating for the skylight portion 210 and the windshield portion 230 of the electrically heated glass 300. In this embodiment, when the extension length L1 of the first field of view S1 is ≤ 1000 mm, the input voltage between the first busbar portion 51 and the second busbar 70 is 12V to 15V; when the extension length L1 of the first field of view S1 is > 1000 mm, the input voltage between the first busbar portion 51 and the second busbar 70 is 20V to 50V. When the extension length L2 of the second field of view S2 is less than or equal to 1000 mm, the input voltage between the first bus section 51 and the second bus 70 is 12V to 15V. When the extension length L2 of the second field of view S2 is greater than or equal to 1000 mm, the input voltage between the first bus section 51 and the second bus 70 is 20V to 50V.

[0103] The electrically heated glass 300 of the sixth embodiment, by providing a first busbar 50 including a first busbar portion 51 and a second busbar portion 53, achieves a heating effect on the skylight portion 210 of the electrically heated glass 300 by applying voltage between the first busbar portion 51 and the second busbar 70, and achieves a heating effect on the windshield portion 230 of the electrically heated glass 300 by applying voltage between the second busbar portion 53 and the second busbar 70, thereby achieving separate control and heating of the skylight portion 210 and the windshield portion 230 of the electrically heated glass 300. Furthermore, the input voltage between the first busbar portion 51 or the second busbar portion 53 and the second busbar 70 can be adaptively selected according to the extension length L1 of the first viewing area S1 and the extension length L2 of the second viewing area S2, allowing the electrically heated glass 300 to flexibly select a low-voltage or high-voltage input voltage according to its actual size. In addition, the first field of view S1 and the second field of view S2 are set apart, so that the intermediate shielding area P3 set in the interval area between the first field of view S1 and the second field of view S2 can be used to shield the crossbeam, thereby improving the appearance of the electrically heated glass 300.

[0104] Furthermore, in the sixth embodiment, the heat insulation film 370 is provided in the skylight portion 210 and the windproof portion 230 of the electrically heated glass 300, so that there is no color difference between the first viewing area S1 and the second viewing area S2 of the electrically heated glass 300, thereby making the appearance of the electrically heated glass 300 harmonious and without color difference.

[0105] See Figure 14 , Figure 14 for Figure 2 The diagram shows a top view of the electrically heated glass 300 in the seventh embodiment.

[0106] The difference between the electrically heated glass 300 of the seventh embodiment and the electrically heated glass 300 of the sixth embodiment is that the second busbar 70 of the electrically heated glass 300 of the seventh embodiment includes a third busbar portion 71 and a fourth busbar portion 73, which are spaced apart along the extension direction of the electrically heated glass 300.

[0107] Specifically, along the extending direction of the electrically heated glass 300, the third busbar portion 71 and the first busbar portion 51 are located on opposite sides of the first viewing area S1, and both the third busbar portion 71 and the first busbar portion 51 are electrically connected to the portion of the second film portion 30 of the heat insulation film 370 located in the first shielding area P1. Along the extending direction of the electrically heated glass 300, the fourth busbar portion 73 and the second busbar portion 53 are located on opposite sides of the second viewing area S2, and both the fourth busbar portion 73 and the second busbar portion 53 are electrically connected to the portion of the second film portion 30 located in the second shielding area P2.

[0108] When the electrically heated glass 300 is working, voltage can be applied between the first busbar portion 51 of the first busbar 50 and the third busbar portion 71 of the second busbar 70 to heat the skylight portion 210 of the electrically heated glass 300, or voltage can be applied between the second busbar portion 53 of the first busbar 50 and the fourth busbar portion 73 of the second busbar 70 to heat the windproof portion 230 of the electrically heated glass 300. This allows for separate control of heating of the skylight portion 210 and the windproof portion 230. In this embodiment, when the extension length L1 of the first viewing area S1 is ≤ 1000mm, the input voltage between the first busbar portion 51 and the third busbar portion 71 is 12V to 15V; when the extension length L1 of the first viewing area S1 is > 1000mm, the input voltage between the first busbar portion 51 and the third busbar portion 71 is 20V to 50V. When the extension length L2 of the second field of view S2 is less than or equal to 1000 mm, the input voltage between the second bus section 53 and the fourth bus section 73 is 12V to 15V. When the extension length L2 of the second field of view S2 is greater than or equal to 1000 mm, the input voltage between the second bus section 53 and the fourth bus section 73 is 20V to 50V.

[0109] The electrically heated glass 300 of the seventh embodiment, by providing a first busbar 50 including a first busbar portion 51 and a second busbar portion 53, and a second busbar 70 including a third busbar portion 71 and a fourth busbar portion 73, can achieve the heating effect of the skylight portion 210 of the electrically heated glass 300 by applying voltage between the first busbar portion 51 and the third busbar portion 71, and achieve the heating effect of the windshield portion 230 of the electrically heated glass 300 by applying voltage between the second busbar portion 53 and the fourth busbar portion 73, thereby realizing separate control heating of the skylight portion 210 and the windshield portion 230 of the electrically heated glass 300. In addition, the input voltage between the first bus section 51 and the third bus section 71, and the input voltage between the second bus section 53 and the fourth bus section 73, can be adaptively selected according to the magnitude of the extension length L1 of the first field of view S1 and the magnitude of the extension length L2 of the second field of view S2, so that the electrically heated glass 300 can flexibly select the input voltage as low voltage or high voltage according to the actual size.

[0110] See Figure 15 , Figure 15 for Figure 2 The diagram shows a top view of the electrically heated glass 300 in the eighth embodiment.

[0111] The difference between the electrically heated glass 300 of the eighth embodiment and the electrically heated glass 300 of the first embodiment is that, in the electrically heated glass 300 of the eighth embodiment, the heat insulation film 370 includes a first heat insulation portion 371 and a second heat insulation portion 373, and the first heat insulation portion 371 and the second heat insulation portion 373 are spaced apart along the extension direction of the electrically heated glass 300.

[0112] Specifically, a first heat insulation part 371 is disposed on the sunroof portion 210, and a second heat insulation part 373 is disposed on the windproof portion 230. The first heat insulation part 371 covers the first viewing area S1 of the sunroof portion 210, and the second heat insulation part 373 covers the second viewing area S2 of the windproof portion 230. In this embodiment, the first heat insulation part 371 can be formed by coating a film on the area corresponding to the first viewing area S1 of the sunroof portion 210, and the second heat insulation part 373 can be formed by coating a film on the area corresponding to the second viewing area S2 of the windproof portion 230. A film removal line 375 is formed in the area between the first heat insulation part 371 and the second heat insulation part 373.

[0113] Both the first heat insulation section 371 and the second heat insulation section 373 include a conductive layer. The first busbar 50 and the second busbar 70 are electrically connected to the conductive layer of the second heat insulation section 373, thereby achieving the heating of the windbreak section 230. At this time, the windbreak section 230 has both heat insulation and heating effects, while the sunroof section 210 only has a heat insulation effect.

[0114] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. An electrically heated glass, characterized in that, The aspect ratio of the electrically heated glass is p, where p = D / L, D represents the width of the electrically heated glass, L represents the extension length of the electrically heated glass, and p < 1. Along the extension direction of the electrically heated glass, the electrically heated glass includes a skylight portion and a windproof portion. Along the thickness direction of the electrically heated glass, the electrically heated glass includes an outer glass panel, an inner glass panel, a heat insulation film, a first busbar, and a second busbar. The outer glass panel includes a first surface and a second surface arranged opposite to each other. The inner glass panel includes a third surface and a fourth surface arranged opposite to each other. The heat insulation film is disposed on the second surface or the third surface, and is disposed on the skylight portion and the windproof portion. The heat insulation film includes a conductive layer. The first busbar and the second busbar are both disposed between the outer glass panel and the inner glass panel. The first busbar and the second busbar are spaced apart, and are both electrically connected to the conductive layer.

2. The electrically heated glass according to claim 1, characterized in that, The electrically heated glass has a viewing area. The first busbar and the second busbar are spaced apart along the width direction of the electrically heated glass, and the viewing area of ​​the electrically heated glass is located between the first busbar and the second busbar. The first busbar extends from the skylight portion to the windproof portion, and the second busbar extends from the skylight portion to the windproof portion.

3. The electrically heated glass according to claim 1, characterized in that, The electrically heated glass has a viewing area. The first busbar and the second busbar are spaced apart along the width direction of the electrically heated glass, and the viewing area of ​​the electrically heated glass is located between the first busbar and the second busbar. The first busbar includes a first busbar portion and a second busbar portion, which are spaced apart along the extension direction of the electrically heated glass. The second busbar includes a third busbar portion and a fourth busbar portion, which are spaced apart along the extension direction of the electrically heated glass. Both the first busbar portion and the third busbar portion are located in the skylight portion, and the first busbar portion and the third busbar portion are electrically connected to the heat insulation film disposed in the skylight portion; Both the second busbar portion and the fourth busbar portion are located in the windbreak portion, and the second busbar portion and the fourth busbar portion are electrically connected to the heat insulation film disposed in the windbreak portion.

4. The electrically heated glass according to claim 2 or 3, characterized in that, The electrically heated glass has a field of view area, and the width of the field of view area of ​​the electrically heated glass is ≤1000mm along the width direction of the glass. The input voltage between the first busbar and the second busbar is 12V to 15V.

5. The electrically heated glass according to claim 1, characterized in that, The electrically heated glass has a field of view area, the first busbar and the second busbar are spaced apart along the extension direction of the electrically heated glass, and the field of view area of ​​the electrically heated glass is located between the first busbar and the second busbar.

6. The electrically heated glass according to claim 5, characterized in that, The extension direction of the electrically heated glass, the extension length of the field of view of the electrically heated glass is >1000mm, and the voltage between the first busbar and the second busbar is 20V~50V.

7. The electrically heated glass according to claim 1, characterized in that, The electrically heated glass has a viewing area. The skylight portion includes a first viewing area, and the windproof portion includes a second viewing area. The first and second viewing areas constitute the viewing area of ​​the electrically heated glass. The first and second viewing areas are spaced apart along the extension direction of the electrically heated glass. The first busbar includes a first busbar portion and a second busbar portion. The viewing area of ​​the electrically heated glass is located between the first busbar portion and the second busbar portion, and the second busbar is located between the first and second viewing areas.

8. The electrically heated glass according to claim 7, characterized in that, The second busbar includes a third busbar portion and a fourth busbar portion, wherein the third busbar portion and the fourth busbar portion are spaced apart along the extension direction of the electrically heated glass; Along the extending direction of the electrically heated glass, the third busbar portion and the first busbar portion are respectively located on opposite sides of the first field of view, and the fourth busbar portion and the second busbar portion are respectively located on opposite sides of the second field of view.

9. The electrically heated glass according to claim 7 or 8, characterized in that, Along the extension direction of the electrically heated glass, the extension length of the first field of view is ≤1000mm, and the voltage between the second busbar and the first busbar portion is 12V~15V; or, the extension length of the first field of view is >1000mm, and the voltage between the second busbar and the first busbar portion is 20V~50V.

10. The electrically heated glass according to claim 1, characterized in that, The electrically heated glass has a field of view area. The skylight portion includes a first field of view area, and the windproof portion includes a second field of view area. The first field of view area and the second field of view area constitute the field of view area of ​​the electrically heated glass. The first field of view area and the second field of view area are spaced apart along the extension direction of the electrically heated glass; or, the first field of view area and the second field of view area are adjacent to each other.

11. The electrically heated glass according to claim 10, characterized in that, The first field of view and the second field of view are spaced apart along the extension direction of the electrically heated glass. The electrically heated glass also includes an intermediate shielding layer, which is disposed on the second surface and / or the fourth surface. Along the extension direction of the electrically heated glass, the intermediate shielding layer is located between the first field of view and the second field of view.

12. The electrically heated glass according to claim 10, characterized in that, The first viewing area and the second viewing area are spaced apart along the extension direction of the electrically heated glass. The electrically heated glass also includes a sandwich layer, which is disposed between the second surface and the third surface. The sandwich layer includes an intermediate colored portion, which is located between the first viewing area and the second viewing area along the extension direction of the electrically heated glass.

13. The electrically heated glass according to claim 1, characterized in that, The heat insulation film includes a first heat insulation part and a second heat insulation part, which are spaced apart along the extension direction of the electrically heated glass. The first heat insulation part is located in the skylight portion, and the second heat insulation part is located in the windproof portion.

14. A vehicle, characterized in that, It includes a vehicle frame and electrically heated glass as described in any one of claims 1 to 13, wherein the electrically heated glass is mounted on the vehicle frame.

Images